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US 10,455,626 B2Granted
Terminal device and PCRF
AssigneeSharp Kabushiki Kaisha
InventorsYudai Kawasaki, Masafumi Aramoto
Life of this patent
Estimating the term…
Abstract
A method of communication control and the like accompanied with a multi-access PDN connectivity establishment request from a terminal device. Communication control for establishing a multi-access PDN connection is performed based on a response to a PDN connectivity establishment request from the terminal device. Communication control is performed for transmitting and/or receiving user data by using one or more default bearers for a multi-access PDN connection.
Claims9
A User Equipment (UE) comprising:
- a controller;
- LTE interface circuitry;
- and
- WLAN interface circuitry,
- wherein
- the LTE interface circuitry is configured to:
- transmit a second Packet Data Network (PDN) connectivity request message to a Mobility Management Entity (MME) in order to establish a PDN connection over a 3GPP access, and
- receive an Activate default Evolved Packet System (EPS) bearer context request message from the MME,
- while the UE has established the PDN connection over the 3GPP access, the WLAN interface circuitry is configured to:
- transmit a PDN connectivity request message to a Trusted WLAN Access Gateway (TWAG) in a case of adding a WLAN access to the PDN connection;
- and
- receive a PDN connectivity accept message as a response to the PDN connectivity request message from the TWAG,
- in a case where a Network-based IP flow mobility (NBIFOM) mode of the PDN connection is a UE-initiated NBIFOM mode, the PDN connectivity request message includes first information indicating a default access selected by the UE,
- the PDN connectivity accept message includes second information indicating a default access determined by a Policy and Charging Rule Function (PCRF), based on the first information, and
- the controller is configured to:
- consider the default access indicated by the second information, based on reception of the PDN connectivity accept message;
- and
- route a packet not matching any routing filter to the default access indicated by the second information.
15 more elements
A communication method performed by a User Equipment (UE), the communication method comprising:
- transmitting a second PDN connectivity request message to a Mobility Management Entity (MME) in order to establish a Packet Data Network (PDN) connection over a 3GPP access;
- receiving an Activate default Evolved Packet System (EPS) bearer context request message from the MME;
- while the UE has established the PDN connection over the 3GPP access,
- transmitting a PDN connectivity request message to a Trusted WLAN Access Gateway (TWAG) in a case of adding a WLAN access to the PDN connection;
- and
- receiving a PDN connectivity accept message as a response to the PDN connectivity request message from the TWAG,
- wherein
- in a case where a Network-based IP flow mobility (NBIFOM) mode of the PDN connection is a UE-initiated NBIFOM mode, the PDN connectivity request message includes first information indicating a default access selected by the UE, and
- the PDN connectivity accept message includes second information indicating a default access determined by a Policy and Charging Rule Function (PCRF), based on the first information, and
- the communication method further comprising:
- considering the default access indicated by the second information, based on reception of the PDN connectivity accept message;
- and
- routing a packet not matching any routing filter to the default access indicated by the second information.
10 more elements
Dependencies are inferred from the claim text.