Method and apparatus for processing scheduling information in mobile communication system
First Claim
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1. A method for performing uplink transmission by a terminal in a wireless communication system, the method comprising:
- grouping a plurality of uplink carriers into a transmission timing group sharing a timing advance based on a control message received from a base station;
determining a reference downlink carrier for the transmission timing group including the plurality of uplink carriers;
determining uplink transmission timing which is common to the plurality of uplink carriers in the transmission timing group, by adjusting a frame boundary of each of the plurality of uplink carriers based on a frame boundary of the reference downlink carrier and the timing advance; and
performing uplink transmission on the plurality of uplink carriers based on the determined uplink transmission timing.
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Abstract
A method and an apparatus for processing scheduling information in a terminal into which a plurality of forward carriers and reverse carriers are aggregated are provided. The method includes receiving a control message from a base station, the control message including information on a reverse carrier added by the carrier aggregation, and determining a new buffer state table to be used for reporting the state of buffers to the base station, based on the information included in the control message.
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Citations
18 Claims
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1. A method for performing uplink transmission by a terminal in a wireless communication system, the method comprising:
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grouping a plurality of uplink carriers into a transmission timing group sharing a timing advance based on a control message received from a base station; determining a reference downlink carrier for the transmission timing group including the plurality of uplink carriers; determining uplink transmission timing which is common to the plurality of uplink carriers in the transmission timing group, by adjusting a frame boundary of each of the plurality of uplink carriers based on a frame boundary of the reference downlink carrier and the timing advance; and performing uplink transmission on the plurality of uplink carriers based on the determined uplink transmission timing. - View Dependent Claims (2, 3, 4, 5)
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6. A terminal for performing uplink transmission in a wireless communication system, the terminal comprising:
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a transceiver configured to communicate with a base station; and a processor coupled with the transceiver and configured to; group a plurality of uplink carriers into a transmission timing group sharing a timing advance based on a control message received from the base station, determine a reference downlink carrier for the transmission timing group including the plurality of uplink carriers, determine uplink transmission timing which is common to the plurality of uplink carriers in the transmission timing group, by adjusting a frame boundary of each of the plurality of uplink carriers based on a frame boundary of the reference downlink carrier and the timing advance, and perform uplink transmission on the plurality of uplink carriers based on the determined uplink transmission timing. - View Dependent Claims (7, 8, 9, 10)
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11. A method for scheduling uplink transmission by a base station in a wireless communication system, the method comprising:
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transmitting, to a terminal, a control message comprising information for grouping a plurality of uplink carriers into a transmission timing group sharing a timing advance; and receiving, from the terminal, uplink transmission on the plurality of uplink carriers based on uplink transmission timing which is common to the plurality of uplink carriers in the transmission timing group, wherein a reference downlink carrier is determined for the transmission timing group including the plurality of uplink carriers, and wherein a frame boundary of each of the plurality of uplink carriers in the transmission timing group is adjusted based on a frame boundary of the reference downlink carrier and the timing advance. - View Dependent Claims (12, 13, 14)
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15. A base station for scheduling uplink transmission in a wireless communication system, the base station comprising:
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a transceiver configured to communicate with a terminal; and a processor coupled with the transceiver and configured to; transmit, to the terminal, a control message comprising information for grouping a plurality of uplink carriers into a transmission timing group sharing a timing advance, and receive, from the terminal, uplink transmission on the plurality of uplink carriers, based on uplink transmission timing which is common to the plurality of uplink carriers in the transmission timing group, wherein a reference downlink carrier is determined for the transmission timing group including the plurality of uplink carriers, and wherein a frame boundary of each of the plurality of uplink carriers in the transmission timing group is adjusted based on a frame boundary of the reference downlink carrier and the timing advance. - View Dependent Claims (16, 17, 18)
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Specification