Method and system for integrating media independent handovers
First Claim
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.
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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 VVTRU 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.
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Citations
18 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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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:
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(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. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification