CA2608537A1 - Method and system for integrating media independent handovers - Google Patents
Method and system for integrating media independent handovers Download PDFInfo
- Publication number
- CA2608537A1 CA2608537A1 CA002608537A CA2608537A CA2608537A1 CA 2608537 A1 CA2608537 A1 CA 2608537A1 CA 002608537 A CA002608537 A CA 002608537A CA 2608537 A CA2608537 A CA 2608537A CA 2608537 A1 CA2608537 A1 CA 2608537A1
- Authority
- CA
- Canada
- Prior art keywords
- uman
- wtru
- handover
- mih
- mih entity
- 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 43
- 238000004891 communication Methods 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000010295 mobile communication Methods 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 10
- 230000011664 signaling Effects 0.000 description 6
- 230000001413 cellular effect Effects 0.000 description 5
- 102000018059 CS domains Human genes 0.000 description 3
- 108050007176 CS domains Proteins 0.000 description 3
- 101100181033 Caenorhabditis elegans unc-116 gene Proteins 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition 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
- H04W36/14—Reselecting a network or an air interface
-
- 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
Abstract
A method and system for integrating media independent handover (MIH) under IEEE 802.21 and unlicensed mobile access (UMA) are disclosed. A public land mobile network (PLMN) and an unlicensed mobile access network (UMAN) are concurrently deployed. UMA is supported such that a multi-mode wireless transmit/receive unit (WTRU) may access the UMAN to receive PLMN services through the UMAN. MIH entities are included both in the WTRU and the UMAN and the MIH entity of the WTRU monitors handover events and information and generates a handover trigger for handover between the PLMN and the UMAN. The MIH entity in the UMAN interacts with the MIH entity of the WTRU to report a remote event, handover information and command.
Description
[0001] METHOD AND SYSTEM FOR INTEGRATING
MEDIA INDEPENDENT HANDOVERS
MEDIA INDEPENDENT HANDOVERS
[0002] FIELD OF INVENTION
[0003] The present invention is related to wireless communication systems.
More particularly, the present invention is related a method and system for integrating media independent handovers (MIHs) under IEEE 802.21 and unlicensed mobile access (UMA).
More particularly, the present invention is related a method and system for integrating media independent handovers (MIHs) under IEEE 802.21 and unlicensed mobile access (UMA).
[0004] BACKGROUND
[0005] Different types of wireless communication systems have been developed to provide different types of services. Some examples of the wireless communication systems include a wireless local area network (WLAN), a wireless wide area network (WWAN) and a cellular network such as universal mobile telecommunication systems (UMTS). Each of these systems have been developed and tailored to provide specific applications for which each system is intended.
[0006] With the pervasive adoption of wireless communication networks in enterprise, residential and public domains, continuous connectivity can be supported as the users move from one network to the other. With the emerging "always-on" life style, wireless transmit/receive units (WTRUs), (i.e., mobile stations), are required to support multiple heterogeneous networks. For seamless handover between these networks, an IEEE 802.21 MIH has been proposed.
[0007] In the meanwhile, UMA technology provides access to a global system for mobile communication (GSM) and general packet radio services (GPRS) over unlicensed spectrum technologies, such as BluetoothTM and IEEE
802.11. By deploying UMA technology, service providers can enable subscribers to roam and handover between cellular networks and public and private unlicensed wireless networks using dual-mode WTRUs. With UMA, subscribers receive continuous services as they transition between networks.
802.11. By deploying UMA technology, service providers can enable subscribers to roam and handover between cellular networks and public and private unlicensed wireless networks using dual-mode WTRUs. With UMA, subscribers receive continuous services as they transition between networks.
[0008] However, UMA technology does not address how a particular handover condition arises and how heterogeneous link layers can communicate these conditions to the upper layers handling the handover. Thus, there are no procedures or functionality in UMA to generate triggers toward upper layers.
Therefore, there is a need to provide the triggers for handover within the UMA
architecture.
Therefore, there is a need to provide the triggers for handover within the UMA
architecture.
[0009] SUMMARY
[0010] The present invention is related to a method and system for integrating MIH under IEEE 802.21 and UMA. A public land mobile network (PLMN) and an unlicensed mobile access network (UMAN) are concurrently deployed. UMA is supported such that a multi-mode WTRU may access the UMAN to receive PLMN services through the UMAN. MIH entities are included both in the WTRU and the UMAN and the MIH entity of the WTRU monitors handover events and information and generates a handover trigger for handover between the PLMN and the UMAN. The MIH entity in the UMAN interacts with the MIH entity of the WTRU to report a remote event, handover information and command.
[0011] BRIEF DESCRIPTION OF THE DRAWINGS
[0012] A more detailed understanding of the invention may be had from the following description of a preferred example, given by way of example and to be understood in conjunction with the accompanying drawing wherein:
[0013] Figure 1 shows a prior art UMA functional architecture of a wireless communication system;
[0014] Figure 2 shows a WTRU and in a network along with signalling between MIH entities in accordance with the present invention;
[0015] Figure 3 shows a UMA-MIH protocol architecture in a circuit switched (CS) domain in accordance with the present invention;
[0016] Figure 4 shows a UMA-MIH protocol architecture in a packet switched (PS) domain in accordance with the present invention;
[0017] Figure 5 shows a WTRU CS domain signaling architecture in accordance with the present invention;
[0018] Figure 6 shows a WTRU PS domain signaling architecture in accordance with the present invention; and [0019] Figure 7 is a flow diagram of a process for triggering handover between a an unlicensed mobile access network (UMAN) and a public land mobile network (PLMN) in accordance with the present invention.
[0020] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0021] 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 terminology "base station" and "AP" include, but are not limited to, a Node-B, a site controller or any other type of interfacing device in a wireless environment.
[0022] The features of the present invention may be incorporated into an integrated circuit (IC) or be configured in a circuit comprising a multitude of interconnecting components.
[0023] Figure 1 shows a prior art UMA functional architecture of a wireless communication system 100. The wireless communication system 100 comprises a UMAN 110 and a PLMN 120. The UMAN 110 may be a BluetoothTM network, an IEEE 802.11 network or other similar wireless networks using unlicensed frequency band. The PLNM 120 may be any type of cellular networks including, but not limited to, third generation partnership project (3GPP) and 3GPP2 networks.
[0024] The UMAN 110 comprises at least one AP 112 and at least one UMA network controller (UNC)116 and a broadband IP network 114 connecting the AP 112 and the UNC 116. The AP 112 provides radio access to a WTRU 102.
The broadband IP network 114 provides connectivity between the AP 112 and the UNC 116. The WTRU 102 is a multi-mode device which supports more than one interface including, but not limited to, IEEE 802.3, 802.11, 802.15, 802.16, 802.20, BluetoothTM, HYPERLAN/2, 3GPP and 3GPP2. The PLMN 120 includes, among other things, a mobile switching center (MSC) 122, a serving GPRS
support node (SGSN) 124, an authentication, authorization and accounting (AAA) server 126 and a home location register (HLR) 128. The UNC 116 connects to the MSC 122 and the SGSN 124 for supporting circuit switched (CS) and packet switched (PS) services, respectively, for the WTRU 102 through the UMAN 110.
The broadband IP network 114 provides connectivity between the AP 112 and the UNC 116. The WTRU 102 is a multi-mode device which supports more than one interface including, but not limited to, IEEE 802.3, 802.11, 802.15, 802.16, 802.20, BluetoothTM, HYPERLAN/2, 3GPP and 3GPP2. The PLMN 120 includes, among other things, a mobile switching center (MSC) 122, a serving GPRS
support node (SGSN) 124, an authentication, authorization and accounting (AAA) server 126 and a home location register (HLR) 128. The UNC 116 connects to the MSC 122 and the SGSN 124 for supporting circuit switched (CS) and packet switched (PS) services, respectively, for the WTRU 102 through the UMAN 110.
[0025] Figure 2 shows signalling between a WTRU 202 and a UMAN 210, (i.e., an AP 212, a UNC 216 and an MIH network entity 218), in accordance with the present invention. MIH entities 252, 254 are included in the WTRU 202 and the network 210, respectively, to support seamless handover between heterogeneous networks. The MIH entities 252, 254 are separate layer-independent entities and may work independently as a sole handover management entity or may coordinate with an existing technology-specific handover entity. The MIH entity 254 in the network may be a separate entity or may reside in any entity, such as the AP 212 or the UNC 216.
[0026] The WTRU 202 includes an IEEE 802 interface 220, a GSM EDGE
radio access network (GERAN) network interface 230 and an MIH entity 252.
The WTRU 202 may have one or more additional MIH user 232. The IEEE 802 interface 220 includes a logical link control/convergence sub-layer (LLC/CS) 222, a medium access control (MAC) layer 224, and a physical (PHY) layer 226. It should be noted that Figure 2 shows only lower layer entities for simplicity and higher layer entities are shown in Figure 5.
radio access network (GERAN) network interface 230 and an MIH entity 252.
The WTRU 202 may have one or more additional MIH user 232. The IEEE 802 interface 220 includes a logical link control/convergence sub-layer (LLC/CS) 222, a medium access control (MAC) layer 224, and a physical (PHY) layer 226. It should be noted that Figure 2 shows only lower layer entities for simplicity and higher layer entities are shown in Figure 5.
[0027] The MIH entity 252 in the WTRU 202 exchanges local handover events, information and commands 244a-244d with lower layers of the WTRU
202, (i.e., the LLC/CS layer 222, the MAC layer 224 and a PHY layer 226), and exchanges remote events, information and commands 242 with the MIH entity 254 of the network 210. Local handover information is communicated between the MIH entity 252 and the MAC/PHY layers 224/226 by an information service (IS) 244a, and a command service (CS) 244b and an event service (ES) 244c are exchanged between the MIH entity 252 and the MAC/PHY layers 224/226 for local handover events and commands via management entity 228. These local events, information and commands 244a-244c are communicated through a LINK-SAP 264 of the MIH entity 252. The remote events 242 are also communicated between the MIH entity 254 and the MIH entity 252 by an IS, CS
and ES over layer 2 transport 242. The MIH entity 252 also communicates with the LLC/CS 222 through LLC-SAP 262 for the local events.
202, (i.e., the LLC/CS layer 222, the MAC layer 224 and a PHY layer 226), and exchanges remote events, information and commands 242 with the MIH entity 254 of the network 210. Local handover information is communicated between the MIH entity 252 and the MAC/PHY layers 224/226 by an information service (IS) 244a, and a command service (CS) 244b and an event service (ES) 244c are exchanged between the MIH entity 252 and the MAC/PHY layers 224/226 for local handover events and commands via management entity 228. These local events, information and commands 244a-244c are communicated through a LINK-SAP 264 of the MIH entity 252. The remote events 242 are also communicated between the MIH entity 254 and the MIH entity 252 by an IS, CS
and ES over layer 2 transport 242. The MIH entity 252 also communicates with the LLC/CS 222 through LLC-SAP 262 for the local events.
[0028] The GERAN network interface 230 communicates handover events with the MIH entity 252 by ES, CS and IS 244e via a 3G-LINK-SAP 266. The additional MIH user 232 also communicates handover events with the MIH
entity 252 by ES, CS and IS 244x via an MIH-SAP 268. The MIH user 232 is any mobility application that can take advantage of MIH services provided by the MIH entity 252. UMA-RR 512 and GSM-RR 522 in Figure 5 are examples of MIH users.
entity 252 by ES, CS and IS 244x via an MIH-SAP 268. The MIH user 232 is any mobility application that can take advantage of MIH services provided by the MIH entity 252. UMA-RR 512 and GSM-RR 522 in Figure 5 are examples of MIH users.
[0029] The handover events and information may be any events or information relevant to handover. For example, if an unrecoverable failure condition occurs in the network 210, the network 210 may signal this occurrence to the WTRU 202 so that the WTRU 202 may switch to a different network interface. ,Another example is the existence of alternative networks with better radio/service condition, (e.g., better price or better QoS). Commands are sent from the MIH User, (e.g., UMA-RR 512 or GSM-RR 522 in Figure 5), to order an execution of a handover.
[0030] The AP 212 includes an LLC/CS 272, a MAC layer 274, a PHY layer 276. In the network, local handover events, information and commands are communicated between the MAC/PHY layers 274/276 and the MIH entity by IS, CS and ES 246a-246c via a management entity 278, and between the LLC/CS
272 and the MIH entity 254.
272 and the MIH entity 254.
[0031] The MIH entity 254 may exist separately and communicate the local and remote events, information and commands with the AP 212 using a higher layer transport protocol or L2 transport. Alternatively, the MIH entity 524 and the AP 212 may reside in the same place. The MIH entity 254 includes a LINK-SAP 282 for communicating local events from the MAC/PHY layers 274/276 and an LLC-SAP 284 for communicating remote events and local events from the LLC/CS 272.
[0032] Current and any anticipated future changes in condition of different networks may be signalled via NET-SAPs 269, 286 between the MIH entities 252, 254 and/or the MIH network entity 218, (such as an MIH server controller), by IS/CS/ES 280 over a higher layer transport protocol, such as IP. These conditions include changes in the MAC layer and the PHY layer states or changes in certain network attributes, such as changes in load conditions. The MIH
entity 252 of the WTRU 202 determines whether a handover is required based on the collected events, information and commands in accordance with certain criteria, such as link quality, service and subscription.
entity 252 of the WTRU 202 determines whether a handover is required based on the collected events, information and commands in accordance with certain criteria, such as link quality, service and subscription.
[0033] The MIH network entity 218 is any entity within the network that is able to operate according to the IEEE 802.21 protocol. The MIH network entity 218 handles messages used by any of the MIH services, (i.e., ES, IS and CS). However, the MIH network entity 218 does not have to respond or act upon these messages, but may ignore the messages. The MIH entity 254 communicates the handover events with the MIH network entity 218 by an IS, ES, CS via MIH-SAP 288. The MIH network entity 218 also communicates with the UNC 216 using a higher layer transport protocol. For example, the MIH
network entity may generate handover commands and information and send them to the MIH entity 254 and the MIH entity 254 may generate remote events and inter-technology network information requests. In both cases messages flow though the 280 interface.
network entity may generate handover commands and information and send them to the MIH entity 254 and the MIH entity 254 may generate remote events and inter-technology network information requests. In both cases messages flow though the 280 interface.
[0034] The UNC 216 provides network capability information to the MIH
network entity 218. In addition the interface between the UNC 216 and the MIH
network entity 218 can be used to support inter-technology mobility management messages for WTRUs that are IEEE 802.21 capable but do not support UMA
functionality. In this scenario the MIH network entity 218 may serve as an inter-working function between the UNC and the WTRU.
network entity 218. In addition the interface between the UNC 216 and the MIH
network entity 218 can be used to support inter-technology mobility management messages for WTRUs that are IEEE 802.21 capable but do not support UMA
functionality. In this scenario the MIH network entity 218 may serve as an inter-working function between the UNC and the WTRU.
[0035] Figures 3 and 4 show UMA-MIH protocol architecture in a CS
domain and a PS domain, respectively, in accordance with the present invention.
The UMA protocol architecture is well known in the art and, therefore, will not be explained herein for simplicity. In accordance with the present invention, the MIH entities 352, 354 are included in the protocol stack of the WTRU 302 and the network, respectively, as explained hereinabove. The MIH entity in the network may be a separate entity or may reside in any network entity, such as the AP 312 as shown in Figures 3 and 4. The MIH entity 352 in the WTRU 302 interacts with the MIH entity 354 to send and receive remote events as indicated by arrows 302, 402. The Figures 3-5 depict IEEE 802.xx technology in the lower layers as an example, and it should be noted that any UMA technology, such as BluetoothTM, may be implemented instead of IEEE 802.xx technology.
domain and a PS domain, respectively, in accordance with the present invention.
The UMA protocol architecture is well known in the art and, therefore, will not be explained herein for simplicity. In accordance with the present invention, the MIH entities 352, 354 are included in the protocol stack of the WTRU 302 and the network, respectively, as explained hereinabove. The MIH entity in the network may be a separate entity or may reside in any network entity, such as the AP 312 as shown in Figures 3 and 4. The MIH entity 352 in the WTRU 302 interacts with the MIH entity 354 to send and receive remote events as indicated by arrows 302, 402. The Figures 3-5 depict IEEE 802.xx technology in the lower layers as an example, and it should be noted that any UMA technology, such as BluetoothTM, may be implemented instead of IEEE 802.xx technology.
[0036] Figure 5 shows a WTRU CS domain signaling architecture in accordance with the present invention. The WTRU 502 is a multi-mode device including both a UMA interface and a GSM interface. It should be noted that Figure 5 depicts a GSM interface as an example and 3GPP, 3GPP2 or any other cellular network interface may be implemented. The WTRU 502 comprises a UMA protocol stack 510, a GSM protocol stack 520, an MIH entity 530 and an access mode switch 540. The MIH entity 530 is provided in the WTRU 502 for monitoring handover triggering events, information and commands and generates and sends a handover trigger to an upper layer, (such as a mobility management (MM) layer 526). The MM layer 526 and a connection management (CM) layer 527 operate in common for both a GSM mode and a UMA mode and the GSM mode and the UMA mode is selectively switched by the access mode switch 540. The individual layers and entities of the UMA protocol stack 510 and the GSM protocol stack 520 are well known in the art and, therefore, will not be explained herein for simplicity. The UMA-radio resource entity (UMA-RR) 512 and the GSM-radio resource entity (GSM-RR) 522 provide radio resource management functions and interact with the MIH entity 530.
[0037] New service access points (SAPs) are provided in addition to existing SAPs, (UMAGSM-SAP 514 and GSMUMA-SAP 524), between the UMA-RR 512 and a remote IP layer 517 and the MIH entity 530 and between the GSM-RR 522 and the MIH entity 530 in accordance with the present invention. An MIH-SAP
504 is provided between the MIH entity 530 and the UMA-RR 512 and a 3GLINK-SAP 508 is provided between the MIH entity 530 and the GSM-RR 522.
A NET-SAP 506 is provided between the MIH entity 530 and a remote IP layer 517.
504 is provided between the MIH entity 530 and the UMA-RR 512 and a 3GLINK-SAP 508 is provided between the MIH entity 530 and the GSM-RR 522.
A NET-SAP 506 is provided between the MIH entity 530 and a remote IP layer 517.
[0038] The GMS-RR 522 provides an interface to an existing radio condition that might be used by the MIH entity 530 to generate a handover indication. This information can be retrieved directly from the GSMUMA-SAP
524. The difference between the GSMUMA-SAP 524 and the 3GLINK-SAP 508 is that by going through the MIH entity 530 a compound message including both IEEE 802 and GERAN is sent to the UMA-RR user as opposed to only GERAN
information.
524. The difference between the GSMUMA-SAP 524 and the 3GLINK-SAP 508 is that by going through the MIH entity 530 a compound message including both IEEE 802 and GERAN is sent to the UMA-RR user as opposed to only GERAN
information.
[0039] The MIH entity 530 collects local events 544 from the LLC layer 516, the MAC layer 518, (via a MAC layer management entity (MLME) 518a), and the PHY layer 519, (via a PHY layer management entity (PLME) 519a), and remote events 542 and handover related information from MIH peers in the network. The MIH entity 530 monitors handover triggering events and generates a handover trigger based on the collected events and information if a certain threshold exceeds.
[0040] Figure 6 shows a WTRU PS domain signaling architecture in accordance with the present invention. The WTRU 602 is a multi-mode device including both a UMA interface and a GPRS interface. It should be noted that Figure 6 depicts a GPRS interface as an example and 3GPP, 3GPP2 or any other cellular network interface may be implemented. The WTRU 602 comprises a UMA protocol stack 610, a GPRS protocol stack 620, an MIH entity 630 and an access mode switch 640. The MIH entity 630 is provided in the WTRU 602 for monitoring handover triggering events, information and commands and generates and sends a handover trigger to an upper layer. The LLC layer 650 operates in common for both a GPRS mode and a UMA mode and the GPRS mode and the UMA mode is selectively switched by the access mode switch 640. The UMA-radio link control (UMA-RLC) layer 512 peers with the GPRS-RLC layer 522 to provide coordination for access mode switching and handovers.
[0041] New service access points (SAPs) are provided in addition to existing SAPs, (UMAGPRS-SAP 614 and GPRSUMA-SAP 624), between the UMA-RLC
612 and the MIH entity 630 and between the GPRS-RLC 622 and the MIH entity 630 in accordance with the present invention. An MIH-SAP 604 is provided between the MIH entity 630 and the UMA-RLC 612 and a 3GLINK-SAP 608 is provided between the MIH entity 630 and the GPRS-RLC 622.
612 and the MIH entity 630 and between the GPRS-RLC 622 and the MIH entity 630 in accordance with the present invention. An MIH-SAP 604 is provided between the MIH entity 630 and the UMA-RLC 612 and a 3GLINK-SAP 608 is provided between the MIH entity 630 and the GPRS-RLC 622.
[0042] The MIH entity 630 collects local events 644 from the LLC layer 616, the MAC layer 618, (via a MAC layer management entity (MLME) 618a), and the PHY layer 619, (via a PHY layer management entity (PLME) 619a). The MIH entity 630 exchanges remote events and handover information 642, 644 from MIH peers in the network. The remote events and handover information may be sent via a NET-SAP 652 to an MIH peer. The MIH entity 630 monitors handover triggering events and generates a handover trigger based on the collected events and information if a certain threshold exceeds.
[0043] Figure 7 is a flow diagram of a process 700 for triggering handover between a UMAN and a PLMN in accordance with the present invention. An MIH entity is provided in a WTRU and a network, respectively (step 702). The MIH entity of the WTRU collects handover events and handover related information from lower layers and peer MIH entities in the network (step 704).
The MIH entity of the WTRU determines whether a threshold for triggering handover is met based on the collected handover events and handover related information (step 706). If the determination at step 706 is positive, the MIH
entity of the WTRU initiates a handover between the PLMN and the UMAN by sending a handover trigger to an upper layer (step 708). If the threshold is not met, the process 700 returns to step 704 to monitor handover events and information.
The MIH entity of the WTRU determines whether a threshold for triggering handover is met based on the collected handover events and handover related information (step 706). If the determination at step 706 is positive, the MIH
entity of the WTRU initiates a handover between the PLMN and the UMAN by sending a handover trigger to an upper layer (step 708). If the threshold is not met, the process 700 returns to step 704 to monitor handover events and information.
[0044] Embodiments.
[0045] 1. A system for integrating an MIH function and UMA
comprises a multi-mode WTRU and a UMAN in a wireless communication system including a PLMN and an UMAN, wherein UMA is supported such that the multi-mode WTRU may access the UMAN to receive services provided by the PLMN through the UMAN and may handover between the PLMN and the UMAN for continuous services.
comprises a multi-mode WTRU and a UMAN in a wireless communication system including a PLMN and an UMAN, wherein UMA is supported such that the multi-mode WTRU may access the UMAN to receive services provided by the PLMN through the UMAN and may handover between the PLMN and the UMAN for continuous services.
[0046] 2. The system of embodiment 1 wherein the multi-mode WTRU
comprises an MIH entity for monitoring handover events and information and sending a handover trigger to an upper layer for handover between the PLMN
and the UMAN.
comprises an MIH entity for monitoring handover events and information and sending a handover trigger to an upper layer for handover between the PLMN
and the UMAN.
[0047] 3. The system as in one of embodiments 1 and 2, wherein the multi-mode WTRU comprises a UMAN interface for interfacing with the UMAN
and reporting a handover event and information to the MIH entity of the WTRU.
and reporting a handover event and information to the MIH entity of the WTRU.
[0048] 4. The system as in one of embodiments 1-3, wherein the multi-mode WTRU comprises a PLMN interface for interfacing with the PLMN and reporting a handover event and information to the MIH entity of the WTRU.
[0049] 5. The system as in one of embodiments 1-4, wherein the UMAN
comprises an AP for providing a radio access to the WTRU.
comprises an AP for providing a radio access to the WTRU.
[0050] 6. The system as in one of embodiments 1-5, wherein the UIVIAN
comprises an MIH entity for interacting with the MIH entity of the WTRU to report a remote handover event relevant to generation of the handover trigger.
comprises an MIH entity for interacting with the MIH entity of the WTRU to report a remote handover event relevant to generation of the handover trigger.
[0051] 7. The system as in one of embodiments 1-6, wherein the UMAN
comprises an MIH entity for interacting with the MIH entity of the WTRU to report a remote handover information relevant to generation of the handover trigger.
comprises an MIH entity for interacting with the MIH entity of the WTRU to report a remote handover information relevant to generation of the handover trigger.
[0052] 8. The system as in one of embodiments 1-7, wherein the UMAN
comprises an MIH entity for interacting with the MIH entity of the WTRU to report a remote handover command relevant to generation of the handover trigger.
comprises an MIH entity for interacting with the MIH entity of the WTRU to report a remote handover command relevant to generation of the handover trigger.
[0053] 9. The system as in one of embodiments 1-8, wherein the UMAN
comprises a UNC for supporting access to the PLMN through the UMAN.
comprises a UNC for supporting access to the PLMN through the UMAN.
[0054] 10. The system as in one of embodiments 1-9, the WTRU triggers a handover based on received events.
[0055] 11. The system as in one of embodiments 1-10, the WTRU
triggers a handover based on received information.
triggers a handover based on received information.
[0056] 12. The system as in one of embodiments 1-11, the WTRU
triggers a handover based on received commands.
triggers a handover based on received commands.
[0057] 13. The system as in one of embodiments 1-12, wherein the UMAN is a Bluetooth network.
[0058] 14. The system as in one of embodiments 1-12, wherein the UMAN is an IEEE 802 network.
[0059] 15. The system as in one of embodiments 1-12, wherein the UMAN is a HYPERLAN/2.
[0060] 16. The system as in one of embodiments 1-15, wherein the PLMN is a GSM network.
[0061] 17. The system as in one of embodiments 1-15, wherein the PLMN is a 3GPP network.
[0062] 18. The system as in one of embodiments 1-15, wherein the PLMN is a 3GPP2 network.
[0063] 19. The system as in one of embodiments 1-18, wherein the WTRU comprises a UMA protocol stack, and service access points are provided between the MIH entity and the UMA protocol stack.
[0064] 20. The system as in one of embodiments 1-19, wherein the WTRU comprises a GSM protocol stack, and service access points are provided between the MIH entity and the GSM protocol stack.
[0065] 21. The system as in one of embodiments 2-20, wherein the MIH
entity of the WTRU is layer independent entity.
entity of the WTRU is layer independent entity.
[0066] 22. The system as in one of embodiments 6-2 1, wherein the MIH
entity of the UMAN is layer independent entity.
entity of the UMAN is layer independent entity.
[0067] 23. The system as in one of embodiments 6-22, wherein the MIH
entity of the UMAN is included in the AP.
entity of the UMAN is included in the AP.
[0068] 24. The system as in one of embodiments 6-22, wherein the MIH
entity of the UMAN is included in the UNC.
entity of the UMAN is included in the UNC.
[0069] 25. The system as in one of embodiments 3-24, wherein the UMAN interface of the WTRU communicates with the MIH entity of the WTRU
by an ES for exchanging an event.
by an ES for exchanging an event.
[0070] 26. The system as in one of embodiments 3-25 wherein the UMAN interface of the WTRU communicates with the MIH entity of the WTRU
by an IS for exchanging an information.
by an IS for exchanging an information.
[0071] 27. The system as in one of embodiments 3-26 wherein the UMAN interface of the WTRU communicates with the MIH entity of the WTRU
by a CS for exchanging a command.
by a CS for exchanging a command.
[0072] 28. The system as in one of embodiments 6-27 wherein the remote events are communicated between the MIH entity of the WTRU and the MIH entity of the UMAN over layer 2 transport.
[0073] 29. The system as in one of embodiments 6-27 wherein the MIH
entity of the WTRU communicates with the MIH entity of the UMAN using a higher layer transport protocol.
entity of the WTRU communicates with the MIH entity of the UMAN using a higher layer transport protocol.
[0074] 30. The 'system as in one of embodiments 1-29, wherein the UMAN further comprises an MIH network entity for controlling the MIH entity of the UMAN.
[0075] 31. A method for integrating an MIH function and UMA in a wireless communication system including a PLMN and an UMAN wherein UMA
is supported such that a multi-mode WTRU may access the UMAN to receive services provided by the PLMN through the UMAN and may handover between the PLMN and the UMAN for continuous service.
is supported such that a multi-mode WTRU may access the UMAN to receive services provided by the PLMN through the UMAN and may handover between the PLMN and the UMAN for continuous service.
[0076] 32. The method of embodiment 31 comprising providing an MIH
entity in the WTRU.
entity in the WTRU.
[0077] 33. The method as in one of embodiments 31 and 32 comprising providing an MIH entity in the UMAN.
[0078] 34. The method as in one of embodiments 31-33, further comprising the MIH entity of the WTRU collecting local and remote handover events.
[0079] 35. The method as in one of embodiments 31-34, further comprising the MIH entity of the WTRU collecting local and remote handover information.
[0080] 36. The method as in one of embodiments 31-35, further comprising the MIH entity of the WTRU collecting local and/or remote handover commands.
[0081] 37. The method as in one of embodiments 31-36, further comprising the MIH entity of the WTRU determining whether a threshold for triggering handover is met based on the collected handover events and information or a handover command is issued.
[0082] 38. The method of embodiment 37 further comprising if the threshold test is positive, the MIH entity of the WTRU initiating a handover between the PLMN and the UMAN by sending a handover trigger to an upper layer.
[0083] 39. The method as in one of embodiments 31-38, wherein the UMAN is a Bluetooth network.
[0084] 40. The method as in one of embodiments 31-38, wherein the UMAN is an IEEE 802 network.
[0085] 41. The method as in one of embodiments 31-38, wherein the UMAN is a HYPERLAN/2.
[00861 42. The method as in one of embodiments 31-41, wherein the PLMN is a GSM network.
[00871 43. The method as in one of embodiments 31-41, wherein the PLMN is a 3GPP network.
[00881 44. The method as in one of embodiments 31-41, wherein the PLMN is a 3GPP2 network.
[0089] 45. The method as in one of embodiments 32-44, wherein the MIH entity of the WTRU is layer independent entity.
[0090] 46. The method as in one of embodiments 33-45, wherein the MIH entity of the UMAN is layer independent entity.
[00911 47. The method as in one of embodiments 33-46, wherein the MIH entity of the UMAN is included in an AP.
[0092] 48. The method as in one of embodiments 33-46, wherein the MIH entity of the UMAN is included in an UNC.
[0093] 49. The method as in one of embodiments 34-48, wherein the handover events are communicated by an ES.
[0094] 50. The method as in one of embodiments 35-48, wherein the handover information is communicated by an IS.
[0095] 51. The method as in one of embodiments 36-48, wherein the handover commands are communicated by a CS.
[0096] 52. The method as in one of embodiments 34-51, wherein the remote events are communicated over layer 2 transport.
[0097] 53. The method as in one of embodiments 35-51, wherein the remote information is communicated over layer 2 transport.
[0098] 54. The method as in one of embodiments 36-51, wherein the remote commands are communicated over layer 2 transport.
[0099] 55. The method as in one of embodiments 33-54, wherein the MIH entity of the WTRU communicates with the MIH entity of the UMAN using a higher layer transport protocol.
[00100] 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.
[00861 42. The method as in one of embodiments 31-41, wherein the PLMN is a GSM network.
[00871 43. The method as in one of embodiments 31-41, wherein the PLMN is a 3GPP network.
[00881 44. The method as in one of embodiments 31-41, wherein the PLMN is a 3GPP2 network.
[0089] 45. The method as in one of embodiments 32-44, wherein the MIH entity of the WTRU is layer independent entity.
[0090] 46. The method as in one of embodiments 33-45, wherein the MIH entity of the UMAN is layer independent entity.
[00911 47. The method as in one of embodiments 33-46, wherein the MIH entity of the UMAN is included in an AP.
[0092] 48. The method as in one of embodiments 33-46, wherein the MIH entity of the UMAN is included in an UNC.
[0093] 49. The method as in one of embodiments 34-48, wherein the handover events are communicated by an ES.
[0094] 50. The method as in one of embodiments 35-48, wherein the handover information is communicated by an IS.
[0095] 51. The method as in one of embodiments 36-48, wherein the handover commands are communicated by a CS.
[0096] 52. The method as in one of embodiments 34-51, wherein the remote events are communicated over layer 2 transport.
[0097] 53. The method as in one of embodiments 35-51, wherein the remote information is communicated over layer 2 transport.
[0098] 54. The method as in one of embodiments 36-51, wherein the remote commands are communicated over layer 2 transport.
[0099] 55. The method as in one of embodiments 33-54, wherein the MIH entity of the WTRU communicates with the MIH entity of the UMAN using a higher layer transport protocol.
[00100] 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.
Claims (18)
1. ~In a wireless communication system including a public land mobile network (PLMN) and an unlicensed mobile access network (UMAN) wherein unlicensed mobile access (UMA) is supported such that a multi-mode wireless transmit/receive unit (WTRU) may access the UMAN to receive services provided by the PLMN through the UMAN and may handover between the PLMN and the UMAN for continuous service, a system for integrating a media independent handover (MIH) function and UMA, the system comprising:
a multi-mode WTRU comprising:
an MIH entity for monitoring handover events and information and sending a handover trigger to an upper layer for handover between the PLMN
and the UMAN;
a UMAN interface for interfacing with the UMAN and reporting a handover event and information to the MIH entity of the WTRU; and a PLMN interface for interfacing with the PLMN and reporting a handover event and information to the MIH entity of the WTRU; and the UMAN comprising:
an access point (AP) for providing a radio access to the WTRU;
an MIH entity for interacting with the MIH entity of the WTRU to report a remote handover event, information and command relevant to generation of the handover trigger; and a UMA network controller (UNC) for supporting access to the PLMN
through the UMAN, whereby the WTRU triggers a handover based on received events, information and commands.
a multi-mode WTRU comprising:
an MIH entity for monitoring handover events and information and sending a handover trigger to an upper layer for handover between the PLMN
and the UMAN;
a UMAN interface for interfacing with the UMAN and reporting a handover event and information to the MIH entity of the WTRU; and a PLMN interface for interfacing with the PLMN and reporting a handover event and information to the MIH entity of the WTRU; and the UMAN comprising:
an access point (AP) for providing a radio access to the WTRU;
an MIH entity for interacting with the MIH entity of the WTRU to report a remote handover event, information and command relevant to generation of the handover trigger; and a UMA network controller (UNC) for supporting access to the PLMN
through the UMAN, whereby the WTRU triggers a handover based on received events, information and commands.
2. ~The system of claim 1 wherein the UMAN is one of Bluetooth network, IEEE 802 network and HYPERLAN/2, and the PLMN is one of a global system for mobile communication (GSM) network, a third generation partnership project (3GPP) network and 3GPP2 network.
3. ~The system of claim 1 wherein the WTRU comprises a UMA protocol stack and a GSM protocol stack and service access points are provided between the MIH entity and the UMA protocol stack and between the MIH entity and the GSM protocol stack.
4. ~The system of claim 1 wherein the MIH entity of the WTRU and the MIH entity of the UMAN are layer independent entities.
5. ~The system of claim 1 wherein the MIH entity of the UMAN is included in the AP.
6. ~The system of claim 1 wherein the MIH entity of the UMAN is included in the UNC.
7. ~The system of claim 1 wherein the UMAN interface of the WTRU
communicates with the MIH entity of the WTRU by an event service (ES), an information service (IS) and a command service (CS) for exchanging an event, information and a command.
communicates with the MIH entity of the WTRU by an event service (ES), an information service (IS) and a command service (CS) for exchanging an event, information and a command.
8. ~The system of claim 1 wherein the remote events are communicated between the MIH entity of the WTRU and the MIH entity of the UMAN over layer 2 transport.
9. ~The system of claim 1 wherein the MIH entity of the WTRU
communicates with the MIH entity of the UMAN via using a higher layer transport protocol.
communicates with the MIH entity of the UMAN via using a higher layer transport protocol.
10. ~The system of claim 1 wherein the UMAN further comprising an MIH network entity for controlling the MIH entity of the UMAN.
11. ~In a wireless communication system including a public land mobile network (PLMN) and an unlicensed mobile access network (UMAN) wherein unlicensed mobile access (UMA) is supported such that a multi-mode wireless transmit/receive unit (WTRU) may access the UMAN to receive services provided by the PLMN through the UMAN and may handover between the PLMN and the UMAN for continuous service, a method for integrating a media independent handover (MIH) function and UMA, the method comprising:
(a) providing an MIH entity in the WTRU and the UMAN, respectively;
(b) the MIH entity of the WTRU collecting local and remote handover events, information and commands;
(c) the MIH entity of the WTRU determining whether a threshold for triggering handover is met based on the collected handover events and information or a handover command is issued; and (d) if the determination at step (c) is positive, the MIH entity of the WTRU
initiating a handover between the PLMN and the UMAN by sending a handover trigger to an upper layer.
(a) providing an MIH entity in the WTRU and the UMAN, respectively;
(b) the MIH entity of the WTRU collecting local and remote handover events, information and commands;
(c) the MIH entity of the WTRU determining whether a threshold for triggering handover is met based on the collected handover events and information or a handover command is issued; and (d) if the determination at step (c) is positive, the MIH entity of the WTRU
initiating a handover between the PLMN and the UMAN by sending a handover trigger to an upper layer.
12. ~The method of claim 11 wherein the UMAN is one of Bluetooth network, IEEE 802 network and HYPERLAN/2, and the PLMN is one of a global system for mobile communication (GSM) network, a third generation partnership project (3GPP) network and 3GPP2 network.
13. ~The method of claim 11 wherein the MIH entity of the WTRU and the MIH entity of the UMAN are layer independent entities.
14. ~The method of claim 11 wherein the MIH entity of the UMAN is included in an access point.
15. ~The method of claim 11 wherein the MIH entity of the UMAN is included in an UMA network controller (UNC).
16. ~The method of claim 11 wherein the handover events, information and commands are communicated by an event service (ES), an information service (IS) and a command service (CS).
17. ~The method of claim 11 wherein the remote events, information and commands are communicated over layer 2 transport.
18. ~The method of claim 11 wherein the MIH entity of the WTRU
communicates with the MIH entity of the UMAN via using a higher layer transport protocol.
communicates with the MIH entity of the UMAN via using a higher layer transport protocol.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68125905P | 2005-05-16 | 2005-05-16 | |
| US60/681,259 | 2005-05-16 | ||
| US11/317,994 | 2005-12-22 | ||
| US11/317,994 US7746825B2 (en) | 2005-05-16 | 2005-12-22 | Method and system for integrating media independent handovers |
| PCT/US2006/018239 WO2006124514A2 (en) | 2005-05-16 | 2006-05-11 | Method and system for integrating media independent handovers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2608537A1 true CA2608537A1 (en) | 2006-11-23 |
Family
ID=37419800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002608537A Abandoned CA2608537A1 (en) | 2005-05-16 | 2006-05-11 | Method and system for integrating media independent handovers |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US7746825B2 (en) |
| EP (1) | EP1884123A4 (en) |
| JP (1) | JP2009506587A (en) |
| KR (2) | KR20080016743A (en) |
| CN (1) | CN101675686B (en) |
| AR (1) | AR053606A1 (en) |
| CA (1) | CA2608537A1 (en) |
| MX (1) | MX2007014202A (en) |
| NO (1) | NO20076435L (en) |
| TW (2) | TWI396418B (en) |
| WO (1) | WO2006124514A2 (en) |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2416269A (en) | 2004-04-16 | 2006-01-18 | Nokia Corp | Cell selection and re-selection |
| US8102811B2 (en) * | 2005-03-07 | 2012-01-24 | Lg Electronics Inc. | Providing mobility management protocol information to a mobile terminal for performing handover in a mobile communication system |
| US7746825B2 (en) | 2005-05-16 | 2010-06-29 | Interdigital Technology Corporation | Method and system for integrating media independent handovers |
| AU2006294621B2 (en) * | 2005-09-23 | 2009-11-19 | Interdigital Technology Corporation | Wireless communication method and system for supporting call continuity |
| KR100801283B1 (en) * | 2005-11-11 | 2008-02-04 | 한국전자통신연구원 | Apparatus and method for providing service for media independent handover |
| CN100455128C (en) * | 2006-04-03 | 2009-01-21 | 华为技术有限公司 | Wireless-network environment detection and reporting method in network switch-over |
| US8965371B2 (en) * | 2006-05-12 | 2015-02-24 | Alcatel Lucent | Selecting a command node in a heterogeneous communication system |
| US20080026756A1 (en) * | 2006-07-27 | 2008-01-31 | Motorola, Inc. | Method and apparatus for selecting a timing of a cell reselection in a wireless communication system |
| KR100924942B1 (en) * | 2006-10-20 | 2009-11-05 | 삼성전자주식회사 | Apparatus and method for vertical handover in broadband wireless communacation system |
| KR100963867B1 (en) * | 2006-10-20 | 2010-06-16 | 삼성전자주식회사 | Apparatus and method for decrease of handover delay in broadband wireless communcation system |
| CN105407513A (en) | 2006-12-01 | 2016-03-16 | 西格拉姆申德勒有限公司 | Method and apparatus for handover information for at least two subscribers of primary telecommunications process |
| US8737349B2 (en) | 2006-12-01 | 2014-05-27 | Sigram Schindler Beteiligungsgesellschaft Mbh | Handover process and information support for communication transfer between telecommunication networks |
| CN101202974B (en) * | 2006-12-15 | 2011-09-28 | 华为技术有限公司 | System, base station and method for multi-standard base station intercommunication |
| CN101212393B (en) * | 2006-12-29 | 2010-10-13 | 华为技术有限公司 | Medium independent switching message transmission method, system, and device |
| KR20080064699A (en) * | 2007-01-05 | 2008-07-09 | 삼성전자주식회사 | Network devices having handover information and method of exchanging handover information between the devices |
| US20080181178A1 (en) * | 2007-01-31 | 2008-07-31 | Interdigital Technology Corporation | Method and apparatus for performing attachment procedures |
| US8077672B2 (en) | 2007-02-08 | 2011-12-13 | Interdigital Technology Corporation | Method and apparatus for media independent handover capability discovery |
| US7894400B2 (en) * | 2007-02-16 | 2011-02-22 | Interdigital Technology Corporation | Handover between an IEEE 802.16 WiBro network and a UMTS network using media independent handover function |
| US8331315B2 (en) * | 2007-02-16 | 2012-12-11 | Interdigital Technology Corporation | Media independent handover for smart phone architecture |
| KR100885723B1 (en) | 2007-05-18 | 2009-02-26 | 주식회사 케이티프리텔 | Handover Method in One-Phone Service System and Mobile Terminal Therefor |
| CN101690328A (en) | 2007-06-06 | 2010-03-31 | 交互数字技术公司 | Heterogeneous network handover-support mechanism using media independent handover (mih) functions |
| JP5414980B2 (en) * | 2007-08-28 | 2014-02-12 | 京セラ株式会社 | Wireless terminal, information processing apparatus, information processing program, and information processing method |
| EP2191674B1 (en) | 2007-09-13 | 2012-02-22 | InterDigital Technology Corporation | Bi-directional handover method and apparatus |
| WO2009058748A1 (en) * | 2007-10-29 | 2009-05-07 | Interdigital Patent Holdings, Inc. | Integration of 802.21 media independent handover functionality to radio interface layer and telephony server |
| WO2009086796A1 (en) * | 2008-01-09 | 2009-07-16 | Infineon Technologies Ag | Ad-hoc communication radio module, ad-hoc communication device and method for controlling an ad-hoc communication radio module |
| KR101226078B1 (en) | 2008-06-20 | 2013-01-24 | 인터디지탈 패튼 홀딩스, 인크 | Handling mobile terminated circuit-switched calls using an 802.21 media independent handover (mih) framework |
| JP5069674B2 (en) * | 2008-12-25 | 2012-11-07 | 京セラ株式会社 | Wireless communication apparatus and wireless communication apparatus control method |
| JP5374144B2 (en) * | 2008-12-25 | 2013-12-25 | 京セラ株式会社 | Wireless communication apparatus and wireless communication apparatus control method |
| US9025536B2 (en) * | 2009-03-26 | 2015-05-05 | Qualcomm Incorporated | Apparatus and methods of whitespace communication |
| WO2012148243A2 (en) * | 2011-04-28 | 2012-11-01 | 엘지전자 주식회사 | Method for improving communication performance using vehicle provided with antennas |
| CN102958126B (en) * | 2011-08-18 | 2015-05-27 | 中国移动通信集团广东有限公司 | Wireless communication method, unlicensed RAT (radio access technology) controller and mobile station |
| EP3061287A4 (en) * | 2013-10-25 | 2017-09-06 | Qualcomm Incorporated | Selectively ignoring rlc errors during handover |
| US10225774B2 (en) * | 2017-04-04 | 2019-03-05 | Cisco Technology, Inc. | Carrier network access using multiple network interfaces |
| KR102195203B1 (en) | 2020-02-13 | 2020-12-28 | 주식회사 이에스지오 | Soil blocking method using horizontal Strut and slope Strut |
Family Cites Families (92)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL103230A (en) * | 1991-12-16 | 1995-12-08 | Motorola Inc | Method and apparatus for reducing data loss in a mobile cellular system |
| TW223721B (en) * | 1992-06-18 | 1994-05-11 | Telefonaktiebolager Lm Ericsson | |
| GB2296626B (en) * | 1994-12-23 | 1999-07-28 | Nokia Mobile Phones Ltd | Multi-mode radio telephone |
| US5889816A (en) * | 1996-02-02 | 1999-03-30 | Lucent Technologies, Inc. | Wireless adapter architecture for mobile computing |
| US6023461A (en) * | 1997-10-10 | 2000-02-08 | Nec Usa, Inc. | Handoff method for an ATM wireless network wherein both the switch and the mobile buffer cells and the mobile controls when the handoff will occur |
| JP2001516172A (en) | 1997-08-20 | 2001-09-25 | モトローラ・インコーポレイテッド | Method and apparatus for establishing a through path for communication signals |
| US6434384B1 (en) * | 1997-10-17 | 2002-08-13 | The Boeing Company | Non-uniform multi-beam satellite communications system and method |
| FI106172B (en) * | 1998-01-29 | 2000-11-30 | Nokia Networks Oy | A method for reconfiguring a connection in a cellular radio network |
| WO1999041925A1 (en) * | 1998-02-16 | 1999-08-19 | Nokia Networks Oy | Method and system for performing handover in a mobile communication system |
| FI108200B (en) * | 1998-09-14 | 2001-11-30 | Nokia Mobile Phones Ltd | Switching the connection between mobile networks |
| US6546425B1 (en) * | 1998-10-09 | 2003-04-08 | Netmotion Wireless, Inc. | Method and apparatus for providing mobile and other intermittent connectivity in a computing environment |
| US6651105B1 (en) * | 1998-11-12 | 2003-11-18 | International Business Machines Corporation | Method for seamless networking support for mobile devices using serial communications |
| CN1250294A (en) * | 1999-07-27 | 2000-04-12 | 邮电部武汉邮电科学研究院 | Adaption method for fusion of Ethernet with synchronizing digital system or synchronizing optical network |
| US6526034B1 (en) * | 1999-09-21 | 2003-02-25 | Tantivy Communications, Inc. | Dual mode subscriber unit for short range, high rate and long range, lower rate data communications |
| US6587680B1 (en) * | 1999-11-23 | 2003-07-01 | Nokia Corporation | Transfer of security association during a mobile terminal handover |
| US7149193B2 (en) * | 1999-12-15 | 2006-12-12 | Nortel Networks Limited | Dynamic, dual-mode wireless network architecture with a split layer 2 protocol |
| US6879568B1 (en) * | 1999-12-20 | 2005-04-12 | Cisco Technology, Inc. | Quick layer-3 message multiplexing |
| US6424639B1 (en) * | 1999-12-22 | 2002-07-23 | Qualcomm, Incorporated | Notifying a mobile terminal device of a change in point of attachment to an IP internetwork to facilitate mobility |
| JP3389908B2 (en) * | 2000-01-07 | 2003-03-24 | 日本電気株式会社 | Mobile terminal network selection method and storage medium storing mobile terminal network selection program |
| US7302497B2 (en) | 2000-02-08 | 2007-11-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Using internet protocol (IP) in radio access network |
| US6985465B2 (en) * | 2000-07-07 | 2006-01-10 | Koninklijke Philips Electronics N.V. | Dynamic channel selection scheme for IEEE 802.11 WLANs |
| US6804222B1 (en) * | 2000-07-14 | 2004-10-12 | At&T Corp. | In-band Qos signaling reference model for QoS-driven wireless LANs |
| GB0023181D0 (en) * | 2000-09-20 | 2000-11-01 | Koninkl Philips Electronics Nv | Message handover for networked beacons |
| GB0023425D0 (en) * | 2000-09-25 | 2000-11-08 | Koninkl Philips Electronics Nv | Portable device interaction with beacons |
| US7079511B2 (en) * | 2000-12-06 | 2006-07-18 | Qualcomm, Incorporated | Method and apparatus for handoff of a wireless packet data services connection |
| US6912389B2 (en) * | 2001-01-12 | 2005-06-28 | Lucent Technologies Inc. | Interworking and interoperability of GPRS systems with systems of other technology families |
| US7016325B2 (en) * | 2001-01-18 | 2006-03-21 | Strix Systems, Inc. | Link context mobility method and system for providing such mobility, such as a system employing short range frequency hopping spread spectrum wireless protocols |
| US20020131386A1 (en) * | 2001-01-26 | 2002-09-19 | Docomo Communications Laboratories Usa, Inc. | Mobility prediction in wireless, mobile access digital networks |
| US8019335B2 (en) * | 2001-01-29 | 2011-09-13 | Nokia Corporation | Identifying neighboring cells in telecommunication network |
| US7103129B2 (en) * | 2001-03-15 | 2006-09-05 | Siemens Communications, Inc. | System and method for rate adaptation in a wireless communication system |
| US6771962B2 (en) * | 2001-03-30 | 2004-08-03 | Nokia Corporation | Apparatus, and an associated method, by which to provide temporary identifiers to a mobile node involved in a communication handover |
| MXPA02011864A (en) * | 2001-03-30 | 2004-07-30 | Nokia Corp | Method for supporting a handover between radio access networks. |
| ATE350868T1 (en) * | 2001-05-10 | 2007-01-15 | Nortel Networks Ltd | SYSTEM AND METHOD FOR DIRECTING COMMUNICATIONS BETWEEN MOBILE TELECOMMUNICATIONS NETWORKS USING DIFFERENT RADIO ACCESS TECHNOLOGIES |
| US7206840B2 (en) * | 2001-05-11 | 2007-04-17 | Koninklike Philips Electronics N.V. | Dynamic frequency selection scheme for IEEE 802.11 WLANs |
| FI113140B (en) * | 2001-05-25 | 2004-02-27 | Nokia Corp | Handoff in cellular system |
| WO2003003776A2 (en) * | 2001-06-27 | 2003-01-09 | Nortel Networks Limited | Mapping information in wireless communications systems |
| JP4036424B2 (en) * | 2001-06-29 | 2008-01-23 | 本田技研工業株式会社 | Manual transmission change device |
| KR100595583B1 (en) * | 2001-07-09 | 2006-07-03 | 엘지전자 주식회사 | Method for transmitting packet data according to handover in a mobile communication system |
| US6775533B2 (en) * | 2001-07-27 | 2004-08-10 | Nokia Corporation | Apparatus, and associated method, for transferring data between a first target entity and a second target entity of a mobile radio communication system |
| FR2832895B1 (en) | 2001-11-26 | 2004-02-20 | France Telecom | TELECOMMUNICATION SYSTEM WITH CENTRALIZED MANAGEMENT |
| GB2383495A (en) * | 2001-12-20 | 2003-06-25 | Hewlett Packard Co | Data processing devices which communicate via short range telecommunication signals with other compatible devices |
| US20030118015A1 (en) * | 2001-12-20 | 2003-06-26 | Magnus Gunnarsson | Location based notification of wlan availability via wireless communication network |
| US20030133421A1 (en) * | 2002-01-17 | 2003-07-17 | Rangamani Sundar | Method, system and apparatus for providing WWAN services to a mobile station serviced by a WLAN |
| US7236502B2 (en) * | 2002-03-07 | 2007-06-26 | Koninklijke Philips Electronics N. V. | Internal signaling method to support clock synchronization of nodes connected via a wireless local area network |
| JP3921113B2 (en) | 2002-03-26 | 2007-05-30 | 株式会社エヌ・ティ・ティ・ドコモ | COMPOSITE RADIO COMMUNICATION SYSTEM AND CONTROL DEVICE, RADIO TERMINAL AND METHOD IN COMPOSITE RADIO COMMUNICATION SYSTEM |
| KR100465208B1 (en) * | 2002-04-02 | 2005-01-13 | 조광선 | System, Apparatus, and Method for Wireless Mobile Communication in association with Mobile AD-HOC Network Support |
| US7961682B2 (en) * | 2002-04-11 | 2011-06-14 | Qualcomm Incorporated | Handoff between base stations of different protocol revisions in a CDMA system |
| WO2003101025A2 (en) * | 2002-05-28 | 2003-12-04 | Zte San Diego, Inc. | Interworking mechanism between cdma2000 and wlan |
| US20030224814A1 (en) * | 2002-05-29 | 2003-12-04 | Hai Qu | Method and apparatus for sending a message from a wireless device |
| AU2003234667A1 (en) * | 2002-06-06 | 2003-12-22 | Thomson Licensing S.A. | Wlan as a logical support node (sgsn) for interworking between the wlan and a mobile communications system |
| AU2002313192A1 (en) | 2002-06-11 | 2003-12-22 | Nokia Corporation | Radio communication system |
| 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) |
| JP4000933B2 (en) * | 2002-07-19 | 2007-10-31 | ソニー株式会社 | Wireless information transmission system, wireless communication method, and wireless terminal device |
| JP4289030B2 (en) | 2002-07-30 | 2009-07-01 | パナソニック株式会社 | Mobility management method and mobile terminal |
| US7133669B2 (en) * | 2002-08-02 | 2006-11-07 | Pctel, Inc. | Systems and methods for seamless roaming between wireless networks |
| CN100579313C (en) * | 2002-10-18 | 2010-01-06 | 卡耐特无线有限公司 | Apparatus and method for extending the coverage area of a licensed wireless communication system using an unlicensed wireless communication system |
| US6993335B2 (en) * | 2002-11-15 | 2006-01-31 | Motorola, Inc. | Apparatus and method for mobile/IP handoff between a plurality of access technologies |
| US7751818B2 (en) * | 2002-11-15 | 2010-07-06 | Nokia Corporation | Smart inter-technology handover control |
| DE60210240T2 (en) | 2002-12-30 | 2006-12-28 | France Telecom | Passing between mobile networks of different technologies |
| KR100510127B1 (en) * | 2002-12-31 | 2005-08-25 | 삼성전자주식회사 | A handover method and mobile node handover device in wireless LAN |
| US20040137901A1 (en) * | 2003-01-13 | 2004-07-15 | Ryutaro Hamasaki | Vertical handover method by IP multicast |
| US6931249B2 (en) | 2003-01-23 | 2005-08-16 | Motorola, Inc. | Method and apparatus for a target-initiated handoff from a source cellular wireless network to a target non-cellular wireless network |
| 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 |
| US7542481B2 (en) * | 2003-02-25 | 2009-06-02 | Nokia Corporation | Connection optimization for communications in multiple access environment |
| JP2006519539A (en) | 2003-02-27 | 2006-08-24 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Method and system for improved handoff of mobile devices between wireless sub-networks |
| US6987985B2 (en) * | 2003-06-06 | 2006-01-17 | Interdigital Technology Corporation | Wireless communication components and methods for multiple system communications |
| GR1004638B (en) * | 2003-07-08 | 2004-07-23 | ATMELCorporation | Method and system for seamless mobility of mobile terminals in a wireless network |
| TWI245513B (en) * | 2003-08-26 | 2005-12-11 | Ind Tech Res Inst | Method and apparatus for controlling multi-radio access |
| US7106714B2 (en) * | 2003-11-25 | 2006-09-12 | Motorola, Inc. | Method and apparatus for transmission of control data in a packet data communication system |
| WO2005057968A1 (en) | 2003-12-05 | 2005-06-23 | Kineto Wireless, Inc. | Apparatus and method for extending the coverage area of a wireless communication system using another wireless communication system |
| US7668145B2 (en) * | 2003-12-22 | 2010-02-23 | Nokia Corporation | Method to support mobile IP mobility in 3GPP networks with SIP established communications |
| US7046647B2 (en) * | 2004-01-22 | 2006-05-16 | Toshiba America Research, Inc. | Mobility architecture using pre-authentication, pre-configuration and/or virtual soft-handoff |
| FI20040280A0 (en) * | 2004-02-23 | 2004-02-23 | Nokia Corp | A method for performing packet switched handover in a mobile communication system |
| KR20050091611A (en) * | 2004-03-12 | 2005-09-15 | 삼성전자주식회사 | Method and apparatus for performing fast handover |
| FI20040444A0 (en) * | 2004-03-23 | 2004-03-23 | Nokia Corp | Selection of network connection unit in a communication system |
| WO2005107297A1 (en) | 2004-04-21 | 2005-11-10 | Kineto Wireless, Inc. | A method and system for signaling traffic and media types within a communications network switching system |
| US7031280B2 (en) * | 2004-04-26 | 2006-04-18 | Motorola, Inc. | Method and apparatus for hand over of calls |
| US20050243755A1 (en) * | 2004-04-30 | 2005-11-03 | Stephens Adrian P | Method and system for adapting wireless network service level |
| US7710923B2 (en) * | 2004-05-07 | 2010-05-04 | Interdigital Technology Corporation | System and method for implementing a media independent handover |
| US20050266880A1 (en) * | 2004-05-27 | 2005-12-01 | Gupta Vivek G | Open and extensible framework for ubiquitous radio management and services in heterogeneous wireless networks |
| US20050276240A1 (en) * | 2004-05-27 | 2005-12-15 | Gupta Vivek G | Scheme for seamless connections across heterogeneous wireless networks |
| US20060025169A1 (en) * | 2004-07-29 | 2006-02-02 | Christian Maciocco | Apparatus and method capable of radio selection in a wireless device |
| US20060092890A1 (en) * | 2004-11-01 | 2006-05-04 | Gupta Vivek G | Global network neighborhood: scheme for providing information about available networks in a geographical location |
| US7684342B2 (en) * | 2004-11-03 | 2010-03-23 | Intel Corporation | Media independent trigger model for multiple network types |
| WO2007089217A2 (en) * | 2004-11-05 | 2007-08-09 | Kabushiki Kaisha Toshiba | Network discovery mechanisms |
| US7738871B2 (en) * | 2004-11-05 | 2010-06-15 | Interdigital Technology Corporation | Wireless communication method and system for implementing media independent handover between technologically diversified access networks |
| US20060104292A1 (en) * | 2004-11-15 | 2006-05-18 | Gupta Vivek G | System and methods for supporting multiple communications interfaces with single client interface |
| US20060211448A1 (en) * | 2005-01-26 | 2006-09-21 | Onecell Ltd. | Method and apparatus of conveying information over a mobile and fixed networks |
| US20060221899A1 (en) * | 2005-03-31 | 2006-10-05 | Feder Peretz M | Triggers for media independent handover |
| US7746825B2 (en) | 2005-05-16 | 2010-06-29 | Interdigital Technology Corporation | Method and system for integrating media independent handovers |
| US7843900B2 (en) | 2005-08-10 | 2010-11-30 | Kineto Wireless, Inc. | Mechanisms to extend UMA or GAN to inter-work with UMTS core network |
-
2005
- 2005-12-22 US US11/317,994 patent/US7746825B2/en not_active Expired - Fee Related
-
2006
- 2006-05-08 TW TW098115759A patent/TWI396418B/en not_active IP Right Cessation
- 2006-05-08 TW TW095116300A patent/TWI396417B/en not_active IP Right Cessation
- 2006-05-11 CA CA002608537A patent/CA2608537A1/en not_active Abandoned
- 2006-05-11 KR KR1020087001118A patent/KR20080016743A/en not_active Application Discontinuation
- 2006-05-11 KR KR1020077027308A patent/KR100960343B1/en not_active IP Right Cessation
- 2006-05-11 MX MX2007014202A patent/MX2007014202A/en not_active Application Discontinuation
- 2006-05-11 EP EP06752508A patent/EP1884123A4/en not_active Withdrawn
- 2006-05-11 JP JP2008512360A patent/JP2009506587A/en active Pending
- 2006-05-11 WO PCT/US2006/018239 patent/WO2006124514A2/en active Search and Examination
- 2006-05-11 CN CN200680016248.0A patent/CN101675686B/en not_active Expired - Fee Related
- 2006-05-16 AR ARP060101962A patent/AR053606A1/en not_active Application Discontinuation
-
2007
- 2007-12-13 NO NO20076435A patent/NO20076435L/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| TW200644536A (en) | 2006-12-16 |
| WO2006124514A2 (en) | 2006-11-23 |
| JP2009506587A (en) | 2009-02-12 |
| WO2006124514A3 (en) | 2009-04-23 |
| EP1884123A4 (en) | 2010-03-10 |
| CN101675686A (en) | 2010-03-17 |
| US20060258355A1 (en) | 2006-11-16 |
| NO20076435L (en) | 2007-12-13 |
| TWI396418B (en) | 2013-05-11 |
| KR20080019592A (en) | 2008-03-04 |
| MX2007014202A (en) | 2008-02-07 |
| TW201014294A (en) | 2010-04-01 |
| KR20080016743A (en) | 2008-02-21 |
| TWI396417B (en) | 2013-05-11 |
| CN101675686B (en) | 2013-07-10 |
| US7746825B2 (en) | 2010-06-29 |
| AR053606A1 (en) | 2007-05-09 |
| EP1884123A2 (en) | 2008-02-06 |
| KR100960343B1 (en) | 2010-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7746825B2 (en) | Method and system for integrating media independent handovers | |
| US7710923B2 (en) | System and method for implementing a media independent handover | |
| JP4504379B2 (en) | Handoff between wireless local area network and cellular communication system | |
| CA2585931C (en) | Wireless communication method and system for implementing media independent handover between technologically diversified access networks | |
| KR101171451B1 (en) | Heterogeneous network handover-support mechanism | |
| US8331315B2 (en) | Media independent handover for smart phone architecture | |
| US20070202891A1 (en) | Methods for Reducing Paging Load in Generic Access Networks | |
| JP2005537748A (en) | Multi-mode interoperable mobile station communication architecture and method | |
| WO2015018213A1 (en) | Processing method and device for information interaction and shunting, base station, rnc and terminal | |
| CN101611645B (en) | Handover between an IEEE 802.16 wibro network and a UMTS network using media independent handover function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |