# US 10,484,924 B2 · Core network apparatus, radio terminal, and base station

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- Number: US 10,484,924 B2
- Document ID: US10484924B2
- Status: Granted
- Kind: B2
- Application number: 15/523,814
- Filed: 2015-11-05
- Published: 2017-11-09
- Granted: 2019-11-19
- Earliest claimed: 2014-11-07
- Assignees: KYOCERA Corporation
- Applicants: Kyocera Corporation
- Inventors: Masato Fujishiro
- Web page: https://patentgrep.com/patent/US10484924B2

## CPC

- H04W 40/12: based on transmission quality or channel quality
- H04L 43/0888: Throughput
- H04W 28/082: among bearers or channels
- H04W 36/0058: {Transmission of hand-off measurement information, e.g. measurement reports}
- H04W 36/0085: {Hand-off measurements}
- H04W 36/1446: {wherein at least one of the networks is unlicensed}
- H04W 36/22: for handling the traffic
- H04W 36/304: {due to measured or perceived resources with higher communication quality}
- H04W 48/18: Selecting a network or a communication service
- H04W 36/38: by fixed network equipment
- 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)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

A network apparatus according to a first aspect includes a controller configured to measure a throughput of communication which is performed by a radio terminal via a wireless LAN. The controller is configured to give a notification of throughput information indicating the throughput, to a base station constituting a mobile communication network.

## Claims

### Claim 1

A radio terminal, comprising:
a controller configured to measure a throughput of communication performed via a wireless LAN, wherein
the controller is configured to give a notification of throughput information indicating the throughput, to a base station constituting a mobile communication network,
the throughput information is information for determining whether or not the base station permits the radio terminal to switch the communication path from the wireless LAN to the mobile communication network, and
the throughput information is included in a message transmitted from the radio terminal to the base station for requesting establishment of an RRC connection with the base station.

### Claim 2 (depends on 1)

The radio terminal according to claim 1, wherein
the controller is configured to start measurement of the throughput when first switching information is transmitted, and
the first switching information is information indicating that the radio terminal switches the communication path from the mobile communication network to the wireless LAN.

### Claim 3 (depends on 1)

The radio terminal according to claim 1, wherein
the controller is configured to end measurement of the throughput when second switching information is transmitted or when a radio environment of the wireless LAN deteriorates, and
the second switching information is information indicating that the radio terminal switches the communication path from the wireless LAN to the mobile communication network.

### Claim 4 (depends on 1)

The radio terminal according to claim 1, wherein
when the radio terminal switches the communication path in APN units, the controller is configured to measure the throughput in APN units.

### Claim 5 (depends on 1)

The radio terminal according to claim 1, wherein
when the radio terminal switches the communication path in bearer units, the controller is configured to measure the throughput in bearer units.

### Claim 6

A base station, comprising:
a controller configured to obtain throughput information from a network apparatus or a radio terminal, wherein
the throughput information is information indicating a throughput of communication performed by the radio terminal via a wireless LAN,
the throughput information is information for determining whether or not the base station permits the radio terminal to switch the communication path from the wireless LAN to the mobile communication network, and
the throughput information is included in a message transmitted from the radio terminal to the base station for requesting establishment of an RRC connection with the base station.

### Claim 7 (depends on 6)

The base station according to claim 6, wherein
the controller is configured to determine whether or not the radio terminal is permitted to switch a communication path from the wireless LAN to the mobile communication network on the basis of the throughput information.

### Claim 8 (depends on 7)

The base station according to claim 7, wherein
when a predicted throughput of the communication performed by the radio terminal via the base station is lower than the throughput indicated by the throughput information, the controller is configured not to permit the radio terminal to switch the communication path from the wireless LAN to the mobile communication network.