Mobile communication system, extension transmission/reception device, base station, radio network controller and mobile station

• US 20050136950A1
• Filed: 11/05/2004
• Published: 06/23/2005
• Est. Priority Date: 11/07/2003
• Status: Active Grant

• Current Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Original Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Inventors: Yamada, Mayu, Masuda, Masafumi, Koshino, Masayuki, Maebara, Akihiro
• Granted Patent: US 7,634,293 B2
• Time in Patent Office: Days
• US Class Current: 455/462
• CPC Class Codes: H04W 88/14 Backbone network devices
• CPC Class Codes: H04W 92/24 between backbone network devices

Abstract

A mobile communication system includes a first base station configured to be controlled by a first radio network controller, and provide an address of an extension transmission/reception device to user data received from a first mobile station, and the extension transmission/reception device configured to be controlled by the first radio network controller or a different second radio network controller, and provide an address of a second base station, which is controlled by the second radio network controller, to user data received from the first base station.

Claims

1. A mobile communication system comprising:

a first base station configured to be controlled by a first radio network controller, and provide an address of an extension transmission/reception device to user data received from a first mobile station; and

the extension transmission/reception device configured to be controlled by the first radio network controller or a different second radio network controller, and provide an address of a second base station, which is controlled by the second radio network controller, to user data received from the first base station.

3. The mobile communication system of claim 1, wherein the extension transmission/reception device converts a format of user data, which is transmitted by the first mobile station, to a format of user data to be received by a second mobile station when the format of user data transmitted by the first mobile station is different from the format of user data received by the second mobile station.

4. The mobile communication system of claim 1, wherein data transmission and data reception among the first mobile station, the first base station, the second base station, the extension transmission/reception device and a mobile switching center are implemented by connectionless communication.

2. A mobile communication system comprising:

a first extension transmission/reception device configured to be controlled by a first radio network controller;

a second extension transmission/reception device configured to be controlled by a different second radio network controller; and

a base station configured to be controlled by the first radio network controller, and provide an address of one of the first extension transmission/reception device or the second extension transmission/reception device, which is selected by a mobile switching center, to user data received from a first mobile station,

wherein the selected extension transmission/reception device provides an address of a second base station, which is controlled by the second radio network controller, to user data received from the base station.

5. A mobile communication system comprising:

a first radio network controller configured to establish a first radio access network, and provide an address of a second extension transmission/reception device controlled by a second radio network controller, which establishes a different second radio access network; and

the second extension transmission/reception device configured to receive extension transmission/reception control data.

6. A mobile communication system comprising:

a first radio network controller configured to establish a first radio access network, and provide an address of a second radio network controller, which establishes a different second radio access network, to extension transmission/reception control data; and

a second extension transmission/reception device configured to be controlled by the second radio network controller, and receive the extension transmission/reception control data via the second radio network controller.

7. An extension transmission/reception device comprising:

a user data process unit configured to provide an address of a second base station controlled by a different second radio network controller to user data received from a first base station controlled by a first radio network controller,

wherein the extension transmission/reception device is controlled by the first radio network controller or the second radio network controller.

8. The extension transmission/reception device of claim 7, further comprising:

a data converter configured to convert a format of user data, which is transmitted by the first mobile station, to a format of user data to be received by a second mobile station when the format of user data transmitted by the first mobile station is different from the format of user data received by the second mobile station.

9. A base station controlled by a radio network controller comprising:

a user data process unit configured to provide an address of a second base station, which is controlled by a different second radio network controller, to user data received from a mobile station.

10. A radio network controller comprising:

a user data process unit configured to provide an address of a second base station, which is controlled by a different second radio network controller, to user data received from a mobile station via a first base station controlled by the radio network controller.

11. A mobile switching center comprising:

an extension transmission/reception device selection unit configured to select one of a first extension transmission/reception device controlled by a first radio network controller or a second extension transmission/reception device controlled by a second radio network controller, as an extension transmission/reception device to provide an address of a second base station, which is controlled by the different second radio network controller, to user data received from a first base station.