Switching multiple link layer resources for media independent handover
AssigneeInterDigital Technology Corporation
InventorsUlises Olvera-Hernandez, Khalid S. Hossain, Shamim Akbar Rahman, Mahmoud Watfa, Juan Carlos Zuniga
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Abstract
A method for controlling behavior of lower layer links related to media independent handover (MIH) of a mobile user comprises sending a MIH link actions request primitive from a MIH User entity to a MIH function (MIHF) for requesting actions to be executed on a set of lower layer links to heterogeneous radio access technology (RAT) networks. The primitive includes parameters that indicate the requested actions and an execution time delay. Confirmation primitives are sent back the MIH User entity to convey the results of the execution attempts on the requested actions.
Claims29
A method for use in a wireless transmit/receive unit (WTRU) that includes an interworking function and a plurality of lower layer devices, wherein the lower layer devices are capable of communicating using respective different radio access technologies, the method comprising:
- the interworking function receiving a first link actions request primitive from an upper layer entity, wherein the first link actions request primitive includes a plurality of parameter sets to trigger multiple independent actions on multiple links that are associated with a plurality of lower layer devices, wherein each parameter set is associated with a specific link and includes:
- a link action parameter, wherein a value of the link action parameter indicates an action to be taken by a corresponding lower layer device;
- and
- an execution time parameter that indicates a time to elapse before the action needs to be taken by the corresponding lower layer device;
- the interworking function sending a second link actions request primitive to the plurality of lower layer devices including a plurality of parameter sets to order each lower layer device to perform the action indicated by the corresponding link action parameter for the lower layer device;
- and
- each of the lower layer devices performing the action indicated by the corresponding link action parameter for the lower layer device on a condition that the time indicated by the corresponding execution time parameter has elapsed.
A wireless transmit/receive unit (WTRU) comprising:
- a plurality of lower layer devices, wherein the lower layer devices are capable of communicating using respective different radio access technologies;
- an interworking function configured to:
- receive a first link actions request primitive from an upper layer entity, wherein the first link actions request primitive includes a plurality of parameter sets to trigger multiple independent actions on multiple links that are associated with a plurality of lower layer devices, wherein each parameter set is associated with a specific link and includes:
- a link action parameter, wherein a value of the link action parameter indicates an action to be taken by a corresponding lower layer device;
- and
- an execution time parameter that indicates a time to elapse before the action needs to be taken by the corresponding lower layer device;
- and
- send a second link actions request primitive to the plurality of lower layer devices including a plurality of parameter sets to order each lower layer device to perform the action indicated by the corresponding link action parameter for the lower layer device;
- wherein each of the lower layer devices is configured to perform the action indicated by the corresponding link action parameter on a condition that the time indicated by the corresponding execution time parameter has elapsed.
Dependencies are inferred from the claim text.