Uplink control information transmission method and apparatus for use in cellular mobile communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsYoungbum KIM, Yongjun KWAK, Seunghoon CHOI
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Abstract
A communication method and apparatus of a terminal in a mobile communication system are provided. The method includes generating uplink control information for at least one activated cell; configuring, if the activated cell belongs to a Master Cell Group (MCG) under a control of a Master evolved Node B (MeNB), an uplink control channel based on the uplink control information of the activated cell belonging to the MCG; and transmitting the uplink control channel to a Primary Cell (PCell).
Claims20
A communication method of a terminal in a mobile communication system, the method comprising:
- acquiring information for configuring at least one of a first cell group and a second cell group;
- receiving scheduling information on a first subframe of the first cell group, the scheduling information comprising a channel state information (CSI) request;
- acquiring aperiodic CSI for a first cell, wherein the first cell is one cell among at least one cell of the first cell group and the first cell is identified based on the scheduling information;
- acquiring periodic CSI for a second cell of the second cell group;
- and
- transmitting the aperiodic CSI for the first cell on a second subframe of the first cell in response to the CSI request and transmitting the periodic CSI for the second cell on a third subframe of the second cell, if the first cell group and the second cell group are different cell group.
A communication method of a base station in a mobile communication system, the method comprising:
- transmitting, to a terminal, scheduling information on a first subframe, the scheduling information comprising a channel state information (CSI) request;
- and
- receiving, aperiodic CSI for a first cell on a second subframe of the first cell, wherein the first cell is one cell among at least one cell of a first cell group and the first cell is identified based on the scheduling information, and receiving periodic CSI for a second cell on a third subframe of the second cell, if the first cell group and the second cell group are different cell group.
A terminal of a mobile communication system, the terminal comprising:
- a transceiver configured to transmit and receive data and
- a controller configured to:
- acquire information for configuring at least one of a first cell group and a second cell group,
- receive scheduling information on a first subframe of the first cell group, the scheduling information comprising a channel state information (CSI) request,
- acquire aperiodic CSI for a first cell, wherein the first cell is one cell among at least one cell of the first cell group and the first cell is identified based on the scheduling information,
- acquire periodic CSI for a second cell of the second cell group,
- transmit the aperiodic CSI for the first cell on a second subframe of the first cell in response to the CSI request and transmitting the periodic CSI for the second cell on a third subframe of the second cell, if the first cell group and the second cell group are different cell group.
A base station of a mobile communication system, the base station comprising:
- a transceiver configured to transmit and to receive data;
- and
- a controller configured to:
- transmit, to a terminal, scheduling information on a first subframe, the scheduling information comprising a channel state information (CSI) request, and,
- receive aperiodic CSI for a first cell on a second subframe of the first cell, wherein the first cell is one cell among at least one cell of a first cell group and the first cell is identified based on the scheduling information, and receiving periodic CSI for a second cell on a third subframe of the second cell, if the first cell group and the second cell group are different cell group.
Dependencies are inferred from the claim text.