Heterogeneous network handover-support mechanism
AssigneeInterDigital Technology Corporation
InventorsJuan Carlos Zuniga, Diana Pani, Ulises Olvera-Hernandez
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Abstract
Methods and mechanisms enhance heterogeneous media independent handover (MIH) between different link layer technologies. Embodiments include using an MIH proxy entity, MIH capable network controller, and an MIH server. Enhancements are made to the query phase, preparation phase, execution phase and completion phase by including required information in MIH messages.
Claims29
A method for heterogeneous handover between a source radio access technology (RAT) network and a target RAT network performed at a media independent handover function (MIHF), the method comprising:
- sending a request message to reserve resources in the target network, wherein the request includes a transparent container including a RAT specific configuration for admitting a new connection at the target network and reserving resources;
- and
- receiving a confirmation message of successful reservation of resources, wherein the confirmation message includes a transparent container which includes the RAT specific configuration of reserved resources at the target network.
A method for heterogeneous handover between a source radio access technology (RAT) network and a target RAT network performed at a centralized media independent handover function (MIHF), the method comprising:
- receiving a reservation request from a mobile node (MN), the reservation request including a transparent container including a RAT specific configuration for admitting a new connection at a target network and reserving resources;
- and
- forwarding the reservation request to the target network to reserve resources in the target network.
A method for heterogeneous handover between a source radio access technology (RAT) network and a target RAT network performed at a media independent handover (MIH) server, wherein the networks are not configured with each other's parameters, the method comprising:
- transmitting a N2N_Query_Resources_Request message for requesting the target network about available resources.
A method for heterogeneous handover between a source radio access technology (RAT) network and a target RAT network performed at a media independent handover (MIH) server, wherein the networks are not configured with each other's parameters, the method comprising:
- transmitting a MN_HO_Query_Request message for requesting the target network about available resources.
A media independent handover (MIH) server configured to perform heterogeneous handover, the MIH server comprising:
- a processor configured to:
- communicate with a Third Generation Partnership Project (3GPP) network, wherein the 3GPP network includes a serving general packet radio service (GPRS) support node (SGSN), a base station controller/radio network controller (BSC/RNC), and a base transceiver station (BTS)/Node B, wherein the processor is further configured to interface with the SGSN and the BSC/RNC;
- communicate with a non-3GPP network, wherein the non-3GPP network includes a network gateway, a network controller, and a base station, wherein the processor is further configured to interface with the network gateway and the network controller;
- and
- communicate with a wireless transmit/receive unit using media independent handover (MIH) messages.
A media independent handover (MIH) proxy configured to perform heterogeneous handover, the MIH proxy comprising:
- a transmitter configured to transmit a MIH_N2N_HO_Commit request message;
- a receiver configured to receive a MIH_N2N_HO_Commit response message;
- and
- a processor configured to:
- communicate with a Third Generation Partnership Project (3GPP) network, wherein the 3GPP network includes a serving general packet radio service (GPRS) support node (SGSN), a base station controller/radio network controller (BSC/RNC), and a base transceiver station (BTS)/Node B, wherein the processor is further configured to interface with the SGSN and the BSC/RNC;
- and
- communicate with a non-3GPP network, wherein the non-3GPP network includes a network gateway, a network controller, and a base station, wherein the processor is further configured to interface with the network gateway.
A wireless transmit/receive unit (WTRU) configured to perform heterogeneous handover, the WTRU comprising:
- a transmitter configured to transmit a first media independent handover (MIH) message including a transparent container, the transparent container including a measurement report;
- a receiver configured to receive a second MIH message including a transparent container, the transparent container including radio resource information;
- and
- a processor configured to make measurements on neighboring cells.
Dependencies are inferred from the claim text.