# US 10,455,628 B2 · Terminal device, MME, and PGW

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- Number: US 10,455,628 B2
- Document ID: US10455628B2
- Status: Granted
- Kind: B2
- Application number: 15/565,039
- Filed: 2016-04-06
- Published: 2018-04-12
- Granted: 2019-10-22
- Earliest claimed: 2015-04-07
- Assignees: Sharp Kabushiki Kaisha
- Applicants: Sharp Kabushiki Kaisha
- Inventors: Yudai Kawasaki; Yoko Kuge; Masafumi Aramoto
- Web page: https://patentgrep.com/patent/US10455628B2

## CPC

- H04W 76/12: Setup of transport tunnels
- H04W 4/00: Services specially adapted for wireless communication networks; Facilities therefor
- H04W 76/10: Connection setup
- H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals
- H04W 92/24: between backbone network devices
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

Provided is communication control accompanied with establishment of a multi-access PDN connection or with rejection of establishment of a multi-access PDN connection, based on a response to a PDN connection establishment request from a terminal device. This makes it possible to provide a communication control method and the like accompanied with a multi-access PDN connection establishment request from the terminal device.

## Claims

### Claim 1

A User Equipment (UE) comprising:
LTE interface circuitry configured to receive an Activate default EPS bearer context request message from a Mobility Management Entity (MME) in order to establish a Packet Data Network (PDN) connection, wherein
the Activate default EPS bearer context request message includes first information indicating a Network-based IP Flow Mobility (NBIFOM) mode,
the Activate default EPS bearer context request message further includes second information indicating that a request for a use of NBIFOM is accepted, and
the NBIFOM mode is selected by a PDN Gateway (PGW) or a Policy and Charging Rules Function (PCRF).

### Claim 2 (depends on 1)

The UE according to claim 1, wherein the first information indicates a UE-initiated NBIFOM mode or a Network-initiated NBIFOM mode.

### Claim 3 (depends on 1)

The UE according to claim 1, wherein on the basis of a reception of the Activate default EPS bearer context request message, the UE recognizes the first information as an NBIFOM mode for the PDN connection.

### Claim 4

A Mobility Management Entity (MME) comprising:
IP mobile communication network interface circuitry configured to transmit an Activate default EPS bearer context request message to a User Equipment (UE), wherein
the Activate default EPS bearer context request message includes first information indicating a Network-based IP Flow Mobility (NBIFOM) mode,
the Activate default EPS bearer context request message further includes second information indicating that a request for a use of NBIFOM is accepted, and
the NBIFOM mode is selected by a PDN Gateway (PGW) or a Policy and Charging Rules Function (PCRF).

### Claim 5 (depends on 4)

The MME according to claim 4, wherein the first information indicates a UE-initiated NBIFOM mode or a Network-initiated NBIFOM mode.

### Claim 6

A PDN Gateway (PGW) comprising:
IP mobile communication network interface circuitry configured to transmit a create session response message to a Serving Gateway (SGW), wherein
the create session response message includes first information indicating a Network-based IP Flow Mobility (NBIFOM) mode, and
the NBIFOM mode is selected by the PGW or a Policy and Charging Rules Function (PCRF).

### Claim 7 (depends on 6)

The PGW according to claim 6, wherein the first information indicates a UE-initiated NBIFOM mode or a Network-initiated NBIFOM mode.