Data flow mobility

摘要

A wireless transmit/receive unit (WTRU) may communicate using a data flow that is defined according to flow identification information (FII). The WTRU may participate in the transfer of the data flow between access networks of diverse radio access technologies. The WTRU may communicate with a mobility function to obtain access network and mobility policy information. The mobility function may be, for example, an Access Network Discovery Function (ANDSF). The mobility policy information may describe the conditions by which the transfer of data flows between access networks may be permitted.

主权项

1. A wireless transmit/receive unit (WTRU), the WTRU comprising:
a transmitter configured to transmit a request for mobility policy information, the mobility policy information including first access network information, second access network information, and third access network information, and the mobility policy information further including data flow information; and a processor configured to make a determination based on the mobility policy information to transfer at least one of: a first Internet Protocol (IP) data flow or a second IP data flow from a first access network of a first radio access technology (RAT) to at least one of: a second access network of a second RAT or a third access network of a third RAT, the data flow information including at least one of: a first application type identifier corresponding to the first IP data flow, and a second application type identifier corresponding to the second IP data flow, the mobility policy information indicating at least one of:
a preference, via the first application type identifier, of the second access network of the second RAT for the first IP data flow, ora preference, via the second application type identifier, of the third access network of the third RAT for the second IP data flow.