# US 2019/0357104 A1 · Communication system, base station, communication method, and non- transitory computer readable medium storing program

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- Number: US 2019/0357104 A1
- Document ID: US20190357104A1
- Status: Published application
- Kind: A1
- Application number: 16/529,556
- Filed: 2019-08-01
- Published: 2019-11-21
- Earliest claimed: 2013-09-27
- Assignees: NEC Corporation
- Applicants: NEC Corporation
- Inventors: Koji ONISHI; Toshiyuki TAMURA
- Web page: https://patentgrep.com/patent/US20190357104A1

## CPC

- H04W 36/12: Reselecting a serving backbone network switching or routing node
- H04L 61/4511: using domain name system [DNS]
- H04W 28/0231: {based on communication conditions (dynamic wireless traffic scheduling definition based on channel quality criteria H04W72/54)}
- H04W 28/0835: {Access entity, e.g. eNB}
- H04W 28/088: among core entities
- H04W 28/0925: {using policies}
- H04W 28/0942: {based on measured or predicted load of entities- or links}
- H04W 36/22: for handling the traffic
- H04W 36/38: by fixed network equipment
- H04W 48/18: Selecting a network or a communication service
- H04W 76/20: Manipulation of established connections
- H04L 47/125: by balancing the load, e.g. traffic engineering
- H04W 4/70: Services for machine-to-machine communication [M2M] or machine type communication [MTC]
- H04W 28/0284: {detecting congestion or overload during communication (monitoring arrangements H04L43/00)}
- H04W 88/16: Gateway arrangements
- 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

An object is to provide a communication system, a base station, a communication method, and a program capable of eliminating an effect caused by a sharp increase in the amount of traffic by a specific group of communication terminals on the quality of the other communication terminals. A communication system according to the present invention includes a communication terminal (40), and a node device (13) that selects a gateway device (11) that performs data communication with the communication terminal (40). Further, the communication system includes a base station (30) that selects the node device (13) based on an identifier included in a connection request message transmitted from the communication terminal (40).

## Claims

### Claim at position 1

1-19. (canceled)

### Claim 20

A system comprising:
a core network node;
a terminal;
a radio access network node; wherein
the core network node is configured to:
provide, to the radio access network node, a first identifier identifying a Dedicated Core Network,
the terminal is configured to:
provide, to the radio access network node, a second identifier identifying a Dedicated Core Network, and
the radio access network node is configured to:
select a core network node based on the first identifier and the second identifier.

### Claim 21

A radio access network node comprising a processor configured to:
receive, from a core network node, a first identifier identifying a Dedicated Core Network,
receive, from a terminal, a second identifier identifying a Dedicated Core Network, and
select a core network node based on the first identifier and the second identifier.

### Claim 22

A core network node comprising a processor configured to:
provide, to a radio access network node, a first identifier identifying a Dedicated Core Network so that the radio access network node receives, from a terminal, a second identifier identifying a Dedicated Core Network, and
select a core network node based on the first identifier and the second identifier.

### Claim 23

A terminal comprising a processor configured to:
provide, to a radio access network node, a second identifier identifying a Dedicated Core Network so that the radio access network node receives, from a core network node, a first identifier identifying a Dedicated Core Network, and
select a core network node based on the first identifier and the second identifier.

### Claim 24

A method comprising:
receiving, from a core network node, a first identifier identifying a Dedicated Core Network,
receiving, from a terminal, a second identifier identifying a Dedicated Core Network, and
selecting a core network node based on the first identifier and the second identifier.

### Claim 25

A method comprising:
providing, to a radio access network node, a first identifier identifying a Dedicated Core Network so that the radio access network node receives, from a terminal, a second identifier identifying a Dedicated Core Network, and
selecting a core network node based on the first identifier and the second identifier.

### Claim 26

A method comprising:
providing, to a radio access network node, a second identifier identifying a Dedicated Core Network so that the radio access network node receives, from a core network node, a first identifier identifying a Dedicated Core Network, and
selecting a core network node based on the first identifier and the second identifier.