# US 2013/0155959 A1 · Communication system, communication method, mobile terminal, and mobile base station device

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- Number: US 2013/0155959 A1
- Document ID: US20130155959A1
- Status: Published application
- Kind: A1
- Application number: 13/818,238
- Filed: 2011-09-08
- Published: 2013-06-20
- Earliest claimed: 2010-09-09
- Assignees: Panasonic Corporation
- Inventors: Shinkichi Ikeda; Takahisa Aoyama
- Web page: https://patentgrep.com/patent/US20130155959A1

## CPC

- H04W 88/08: Access point devices
- H04W 88/02: Terminal devices
- H04W 36/1446: {wherein at least one of the networks is unlicensed}
- H04W 76/10: Connection setup
- H04W 80/02: Data link layer protocols
- H04W 84/12: WLAN [Wireless Local Area Networks]
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

To establish an appropriate communication path of a mobile terminal to a local network in accordance with a connection configuration of a mobile base station. A mobile base station device of the present invention includes: a base station processing unit that receives a connection request from a mobile terminal accommodated by the mobile base station device; and a switching processing unit that switches connection of the mobile terminal to a local network to either of local IP connection or remote IP connection, in accordance with backhaul media to which the mobile base station device is connected, based on the connection request from the mobile terminal.

## Claims

### Claim at position 1

1: A mobile base station device, comprising:
a base station processing unit that receives a connection request from a mobile terminal accommodated by the mobile base station device; and
a switching processing unit that switches connection of the mobile terminal to a local network to either of local IP connection or remote IP connection, in accordance with backhaul media to which the mobile base station device is connected, based on the connection request from the mobile terminal.

### Claim at position 2 (depends on 1)

2: The mobile base station device according to claim 1, further comprising:
a first communication unit that controls a communication with the local network;
a second communication unit that controls a communication with a macro base station; and
a third communication unit that controls a communication with the mobile terminal, wherein
when the base station processing unit receives the connection request from the mobile terminal through the third communication unit, the switching processing unit switches the connection of the mobile terminal to the local network to the local IP connection when the backhaul media is the first communication unit, and switches the connection of the mobile terminal of the local network to the remote IP connection when the backhaul media is the second communication unit.

### Claim at position 3

3: A communication system, comprising:
a mobile base station device which is capable of accommodating a plurality of mobile terminals including a mobile terminal in an active mode and a mobile terminal in an idle mode, and connectable to a local network; and
an MME which is connected to a core network, and performs management of states and mobility of the plurality of mobile terminals, wherein
the mobile base station device switches connection of the mobile terminals to a local network to either of local IP connection or remote IP connection, in accordance with backhaul media to which the mobile base station device is connected, based on a connection request from the mobile terminal in the active mode, and
the MME manages a state and mobility of the mobile terminal in the idle mode, based on a bearer modification command of the mobile terminal in the idle mode which is identified by a local gateway.

### Claim at position 4

4: A communication system, comprising:
a mobile base station device which is capable of accommodating a plurality of mobile terminals including a mobile terminal in an active mode and a mobile terminal in an idle mode, and connectable to a local network through a local gateway; and
an MME which is connected to a core network, and performs management of states and mobility of the plurality of mobile terminals, wherein
the local gateway detects disconnection of the mobile base station device from the local network based on a response reception from the mobile base station device, to identify the plurality of mobile terminals accommodated in the mobile base station device, and transmits a bearer modification request of the plurality of identified mobile terminals to the MME, and
based on the bearer modification request of the plurality of mobile terminals received from the local gateway, the MME performs the bearer modification request to the mobile base station device with respect to the mobile terminal in the active mode, and does not perform the bearer modification request to the mobile base station device with respect to the mobile terminal in the idle mode.

### Claim at position 5

5: A communication system, comprising:
a mobile base station device which is capable of accommodating a plurality of mobile terminals including a mobile terminal in an active mode and a mobile terminal in an idle mode, and connectable to a local network; and
an MME which is connected to a core network, and performs management of states and mobility of the plurality of mobile terminals, wherein
when it is detected that a backhaul media is switched, the mobile base station device transmits identification information of the mobile base station device included in a bearer release command message established by the plurality of accommodated mobile terminals, to the MME, and
the MME identifies the plurality of mobile terminals having a bearer established, based on the identification information of the mobile base station device, and performs management of states and mobility of the plurality of identified mobile terminals.

### Claim at position 6

6: A communication system, comprising:
a mobile base station device which is capable of accommodating a plurality of mobile terminals including a mobile terminal in an active mode and a mobile terminal in an idle mode, and connectable to a local network; and
an MME which is connected to a core network, and performs management of states and mobility of the plurality of mobile terminals, wherein
when it is detected that a backhaul media is switched, the mobile base station device transmits identification information of the mobile base station device included in a bearer modification request established by the plurality of mobile terminals, to the MME, and
the MME identifies the plurality of mobile terminals having a bearer established based on the identification information of the mobile base station device, wherein the MME performs the bearer modification request to the mobile base station device with respect to the mobile terminal in the active mode, and does not perform the bearer modification request to the mobile base station device with respect to the mobile terminal in the idle mode based on the bearer modification request of the plurality of mobile terminals received from a local gateway.

### Claim at position 7

7: A mobile terminal, comprising:
a wireless communication unit that performs a process for connection to a mobile base station device;
a control unit that controls a communication through the mobile base station device; and
an application unit that causes an application to work, the application performing a communication by established communication connection, wherein
the control unit switches connection of a local network to either of local IP connection or remote IP connection, based on a bearer release command from the mobile base station device based on switching of backhaul media which is received through the wireless communication unit, and
the application unit that causes an application to work, the application performing a communication by either communication connection of the local IP connection or the remote IP connection switched.

### Claim at position 8

8: A communication method for switching connection of a mobile terminal accommodated in a mobile base station device to a local network, the communication method comprising:
a step of transmitting a connection request to the local network from the mobile terminal to the mobile base station device; and
a step of switching the connection of the mobile terminal to the local network to either of local IP connection or remote IP connection, in accordance with backhaul media to which the mobile base station device is connected, based on the connection request to the local network from the mobile terminal.
