Radio access network system, radio communication method, control server and data server

• US 20040162079A1
• Filed: 12/01/2003
• Published: 08/19/2004
• Est. Priority Date: 12/02/2002
• Status: Active Grant

• Current Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Original Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Inventors: Nakamura, Takehiro, Yamada, Mayu, Koshino, Masayuki
• Granted Patent: US 7,317,923 B2
• Time in Patent Office: Days
• US Class Current: 455/445
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

The object of the present invention is to provide a radio access network system for properly distributing loads and functions of the control plane function and a user plane function of a control apparatus, thus enabling the addition of only a necessary function when a radio access network is expanded. The radio access network system comprises a control server 1 configured to manage a configuration of a radio access network including a base station 3, and to set a transfer path for a packet in accordance with the configuration, and a data server 2 configured to manage a resource of a base station 3 located in the transfer path set by the control server 1.

Claims

1. A radio access network system comprising:

a control server configured to manage a configuration of a radio access network including a base station, and to set a transfer path for a packet in accordance with the configuration; and

a data server configured to manage a resource of a base station located in the transfer path set by the control server.

2. A radio communication method in a radio access network including a base station, a control server and a data server, the method comprising the steps of:

managing a configuration of the radio access network in the control server;

setting a transfer path for a packet in accordance with the configuration, in the control server; and

managing a resource of a base station located in the transfer path set by the control server, in the data server.

3. A control server comprising:

a manager configured to manage a configuration of a radio access network including a data server connected to the control server and a base station managed by the data server;

a transfer path setter configured to set a transfer path for a packet in accordance with the configuration;

a network configuration notifier configured to notify an instruction to reserve a resource of a base station in accordance with the configuration, when the transfer path is set.

4. The control server according to claim 3, wherein the control server is connected to a plurality of data servers.

5. A data server comprising:

a manager configured to manage a resource of a base station located in a radio access network;

a resource assigner configured to assign the resource to a transfer path for a packet in accordance with a resource reservation instruction notified by a control server; and

a resource notifier configured to notify the assigned resource to the control server.

6. The data server according to 5, wherein the data server transmits and receives the packet via the transfer path set by the control server.