User terminal, radio base station, radio communication system, and radio communication method
AssigneeNtt Docomo, Inc.
InventorsKazuki Takeda, Hiroki Harada, Satoshi Nagata
Life of this patent
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Abstract
An object is to enable proper operation of extended carrier aggregation that can allocate at least six component carriers to each user terminal. Provided is a user terminal that communicates with a radio base station that configures a plurality of cell groups each of which including one or more cells. The user terminal includes: a control unit that controls six or more component carriers configured by the radio base station; and a transmitting/receiving unit that receives information on a plurality of component carriers configured by the radio base station and feedbacks ACK/NACK information to one of the component carriers in each cell group.
Claims10
A user terminal that communicates with a radio base station that configures a plurality of cell groups each of which including one or more cells, the user terminal comprising:
- a control unit that controls six or more component carriers configured by the radio base station;
- and
- a transmitting/receiving unit that receives information on a plurality of component carriers configured by the radio base station and feedbacks ACK/NACK information to one of the component carriers in each cell group.
A radio base station that configures a plurality of cell groups each of which including one or more cells and communicates with a user terminal, the radio base station comprising
- a transmitting/receiving unit that transmits information on six or more component carriers configured to the user terminal and receives ACK/NACK information fed back from one of the component carriers in each cell group.
A radio communication system that provide communication between a user terminal and a radio base station configures a plurality of cell groups each of which includes one or more cells, wherein
- the user terminal comprises:
- a control unit that controls six or more component carriers configured by the radio base station;
- and
- a transmitting/receiving unit that receives information on a plurality of component carriers configured by the radio base station and feedbacks ACK/NACK information to one of the component carriers in each cell group, and
- the radio base station comprises:
- a transmitting/receiving unit that transmits information on six or more component carriers configured to the user terminal and receives ACK/NACK information fed back from one of the component carriers in each cell group.
A radio communication method for a user terminal that communicates with a radio base station that configures a plurality of cell groups each of which includes one or more cells, wherein the method controls six or more component carriers configured by the radio base station and comprises the steps of:
- receiving information on a plurality of component carriers configured by the radio base station;
- and
- feedbacking ACK/NACK information to one of the component carriers in each cell group.
Dependencies are inferred from the claim text.