BASE STATION DEVICE AND USER EQUIPMENT

• US 20120243450A1
• Filed: 10/06/2010
• Published: 09/27/2012
• Est. Priority Date: 10/06/2009
• Status: Abandoned Application

• Current Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Original Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Inventors: Ishii, Hiroyuki, Umeda, Hiromasa, Okada, Takashi
• Application Number:
  US13/500,307
• Publication Number:
  US 20120243450A1
• Time in Patent Office: Days
• US Class Current: 370/281
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04W 8/24 Transfer of terminal data

Abstract

When multicarrier transmission is performed, a mobile communication service is appropriately provided according to the configuration of a user equipment. A radio base device eNB according to the present invention includes a control signal reception unit 13 configured to receive a control signal for notifying the capability “Capability” of the user equipment UE from the user equipment UE, wherein the control signal includes information on simultaneously communicable carriers and information on a carrier capable of transmitting an uplink signal among the simultaneously communicable carriers.

Claims

1. A base station device, which performs radio communication with a user equipment using a plurality of carriers in a mobile communication system, comprising:

a control signal reception unit configured to receive a control signal for notifying capability of the user equipment from the user equipment, wherein

the control signal includes information on simultaneously communicable carriers and information on a carrier capable of transmitting an uplink signal among the simultaneously communicable carriers.

7. The base station device according to claim 1, wherein

the information on the carrier capable of transmitting the uplink signal includes information indicating whether simultaneous transmission of the uplink signal is possible.

8. The base station device according to claim 1, wherein

the information on the carrier capable of transmitting the uplink signal includes at least one of an uplink system bandwidth, an uplink frequency, a downlink system bandwidth, and a downlink frequency.

2. A user equipment, which performs radio communication with a base station device using a plurality of carriers in a mobile communication system, comprising:

a control signal transmission unit configured to transmit a control signal for notifying capability of the user equipment to the base station device, wherein

the control signal includes information on simultaneously communicable carriers and information on a carrier capable of performing uplink transmission among the simultaneously communicable carriers.

9. The user equipment according to claim 2, wherein

the information on the carrier capable of transmitting the uplink signal includes information indicating whether simultaneous transmission of the uplink signal is possible.

10. The user equipment according to claim 2, wherein

the information on the carrier capable of transmitting the uplink signal includes at least one of an uplink system bandwidth, an uplink frequency, a downlink system bandwidth, and a downlink frequency.

3. A base station device, which performs radio communication with a user equipment using a plurality of carriers in a mobile communication system, comprising:

a control signal reception unit configured to receive a control signal for notifying capability of the user equipment from the user equipment, wherein

the control signal includes information on simultaneously communicable carriers and category information on transmission of an uplink signal of the simultaneously communicable carriers.

4. The base station device according to claim 3, wherein

the category information is defined based on reception characteristics of a downlink signal.

5. A user equipment, which performs radio communication with a base station device using a plurality of carriers in a mobile communication system, comprising:

a control signal transmission unit configured to transmit a control signal for notifying capability of the user equipment to the base station device, wherein

the control signal includes information on simultaneously communicable carriers and category information on transmission of an uplink signal of the simultaneously communicable carriers.

6. The user equipment according to claim 5, wherein

the category information is defined based on reception characteristics of a downlink signal.

11. A base station device, which performs radio communication with a user equipment using a plurality of carriers in a mobile communication system, comprising:

a control signal reception unit configured to receive a control signal for notifying capability of the user equipment from the user equipment, wherein

the control signal includes at least one of an uplink system bandwidth, an uplink frequency, a downlink system bandwidth, and a downlink frequency of simultaneously communicable carriers.

12. A user equipment, which performs radio communication with a base station device using a plurality of carriers in a mobile communication system, comprising:

a control signal transmission unit configured to transmit a control signal for notifying capability of the user equipment to the base station device, wherein

the control signal includes at least one of an uplink system bandwidth, an uplink frequency, a downlink system bandwidth, and a downlink frequency of simultaneously communicable carriers.