Method for reporting the results of specific reference-cell-based quality measurement in a mobile communication system using carrier aggregation, and apparatus for the method
First Claim
1. A method for performing, by a user equipment (UE), a cell measurement in a mobile communication system, the method comprising:
- receiving, from a network, measurement configuration information including a reporting criterion which triggers the user equipment to transmit a measurement report message;
performing, by the user equipment (UE), cell measurement according to the received measurement configuration information;
reporting the measurement report message including a result of the cell measurement to the network when the reporting criterion of a first event has been configured and the result of the cell measurement satisfies the reporting criterion of the first event in which a measurement of a serving cell becomes better than a first threshold;
reporting the measurement report message including a result of the cell measurement to the network when the reporting criterion of a second event has been configured and the result of the cell measurement satisfies the reporting criterion of the second event in which the measurement of the serving cell becomes worse than a second threshold;
reporting the measurement report message including a result of the cell measurement to the network when the reporting criterion of a third event has been configured and the result of the cell measurement satisfies the reporting criterion of the third event in which a measurement of a neighboring cell becomes offset better than the serving cell;
reporting the measurement report message including a result of the cell measurement to the network when the reporting criterion of a fourth event has been configured and the result of the cell measurement satisfies the reporting criterion of the fourth event in which the measurement of the neighboring cell becomes offset better than a third threshold; and
reporting the measurement report message including a result of the cell measurement to the network when the reporting criterion of a fifth event has been configured and the result of the cell measurement satisfies the reporting criterion of the fifth event in which the measurement of the serving cell becomes worse than a forth threshold and the measurement of the neighboring cell becomes better than a fifth threshold,wherein if a plurality of serving cells including a primary cell (PCell) and at least one secondary cell (SCell) are configured in the user equipment (UE), the serving cell for the third event and the serving cell for the fifth event are each a PCell among the plurality of serving cells, and the measurement report message includes a measurement of the SCell and a cell identifier of the SCell.
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Abstract
The present invention relates to a method in which a terminal reports the results of quality measurement based on a specific reference cell from among a plurality of serving cells for the terminal in a mobile communication system using carrier aggregation. The present invention also relates to a terminal apparatus for the method. For this purpose, the terminal receives measurement configuration information from a network, performs a quality measurement in accordance with the received measurement configuration information, determines whether or not a report criterion based on a specific reference cell from among the plurality of cells for the terminal is met in accordance with the measurement result, and, if the report criterion based on the specific reference cell is met, sends a report message, including the measurement results and an indicator that indicates the specific reference cell, to the network.
18 Citations
13 Claims
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1. A method for performing, by a user equipment (UE), a cell measurement in a mobile communication system, the method comprising:
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receiving, from a network, measurement configuration information including a reporting criterion which triggers the user equipment to transmit a measurement report message; performing, by the user equipment (UE), cell measurement according to the received measurement configuration information; reporting the measurement report message including a result of the cell measurement to the network when the reporting criterion of a first event has been configured and the result of the cell measurement satisfies the reporting criterion of the first event in which a measurement of a serving cell becomes better than a first threshold; reporting the measurement report message including a result of the cell measurement to the network when the reporting criterion of a second event has been configured and the result of the cell measurement satisfies the reporting criterion of the second event in which the measurement of the serving cell becomes worse than a second threshold; reporting the measurement report message including a result of the cell measurement to the network when the reporting criterion of a third event has been configured and the result of the cell measurement satisfies the reporting criterion of the third event in which a measurement of a neighboring cell becomes offset better than the serving cell; reporting the measurement report message including a result of the cell measurement to the network when the reporting criterion of a fourth event has been configured and the result of the cell measurement satisfies the reporting criterion of the fourth event in which the measurement of the neighboring cell becomes offset better than a third threshold; and reporting the measurement report message including a result of the cell measurement to the network when the reporting criterion of a fifth event has been configured and the result of the cell measurement satisfies the reporting criterion of the fifth event in which the measurement of the serving cell becomes worse than a forth threshold and the measurement of the neighboring cell becomes better than a fifth threshold, wherein if a plurality of serving cells including a primary cell (PCell) and at least one secondary cell (SCell) are configured in the user equipment (UE), the serving cell for the third event and the serving cell for the fifth event are each a PCell among the plurality of serving cells, and the measurement report message includes a measurement of the SCell and a cell identifier of the SCell. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A user equipment (UE) for performing a cell measurement in a mobile communication system, the user equipment (UE) comprising:
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a reception module configured to receive, from a network, measurement configuration information including a reporting criterion which triggers the user equipment to transmit a measurement report message; and a processor configured to; control a cell measurement in response to the measurement configuration information received through the reception module, report the measurement report message including a result of the cell measurement to the network when the reporting criterion of a first event has been configured and the result of the cell measurement satisfies the reporting criterion of the first event in which a measurement of a serving cell becomes better than a first threshold; report the measurement report message including a result of the cell measurement to the network when the reporting criterion of a second event has been configured and the result of the cell measurement satisfies the reporting criterion of the second event in which the measurement of the serving cell becomes worse than a second threshold; report the measurement report message including a result of the cell measurement to the network when the reporting criterion of a third event has been configured and the result of the cell measurement satisfies the reporting criterion of the third event in which a measurement of a neighboring cell becomes offset better than the serving cell; report the measurement report message including a result of the cell measurement to the network when the reporting criterion of a fourth event has been configured and the result of the cell measurement satisfies the reporting criterion of the fourth event in which the measurement of the neighboring cell becomes offset better than a third threshold; and report the measurement report message including a result of the cell measurement to the network when the reporting criterion of a fifth event has been configured and the result of the cell measurement satisfies the reporting criterion of the fifth event in which the measurement of the serving cell becomes worse than a forth threshold and the measurement of the neighboring cell becomes better than a fifth threshold, wherein if a plurality of serving cells including a primary cell (PCell) and at least one secondary cell (SCell) are configured in the user equipment (UE), the serving cell for the third event and the serving cell for the fifth event are each a PCell among the plurality of serving cells, and the measurement report message includes a measurement of the SCell and a cell identifier of the SCell. - View Dependent Claims (8, 9, 10, 11)
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12. A base station signaling a user equipment (UE) to perform a cell measurement in a mobile communication system, the base station comprising:
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a transmitter to transmit, to the user equipment (UE), measurement configuration information including a reporting criterion which triggers the user equipment (UE) to transmit a measurement report message; a receiver; a processor configured to control the transmitter and the receiver by; receive the measurement report message including a result of the cell measurement to the network when the reporting criterion of a first event has been configured and the result of the cell measurement satisfies the reporting criterion of the first event in which a measurement of a serving cell becomes better than a first threshold; receive the measurement report message including a result of the cell measurement to the network when the reporting criterion of a second event has been configured and the result of the cell measurement satisfies the reporting criterion of the second event in which the measurement of the serving cell becomes worse than a second threshold; receive the measurement report message including a result of the cell measurement to the network when the reporting criterion of a third event has been configured and the result of the cell measurement satisfies the reporting criterion of the third event in which a measurement of a neighboring cell becomes offset better than the serving cell; receive the measurement report message including a result of the cell measurement to the network when the reporting criterion of a fourth event has been configured and the result of the cell measurement satisfies the reporting criterion of the fourth event in which the measurement of the neighboring cell becomes offset better than a third threshold; and receive the measurement report message including a result of the cell measurement to the network when the reporting criterion of a fifth event has been configured and the result of the cell measurement satisfies the reporting criterion of the fifth event in which the measurement of the serving cell becomes worse than a forth threshold and the measurement of the neighboring cell becomes better than a fifth threshold, wherein if a plurality of serving cells including a primary cell (PCell) and at least one secondary cell (SCell) are configured in the user equipment (UE), the serving cell for the third event and the serving cell for the fifth event are each a PCell among the plurality of serving cells, and the measurement report message includes a measurement of the SCell and a cell identifier of the SCell.
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13. A method for a base station signaling a user equipment (UE) to perform a cell measurement in a mobile communication system, the method comprising:
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transmitting, to the user equipment (UE), measurement configuration information including a reporting criterion which triggers the user equipment to transmit a measurement report message; and receiving the measurement report message including a result of the cell measurement to the network when the reporting criterion of a first event has been configured and the result of the cell measurement satisfies the reporting criterion of the first event in which a measurement of a serving cell becomes better than a first threshold; receiving the measurement report message including a result of the cell measurement to the network when the reporting criterion of a second event has been configured and the result of the cell measurement satisfies the reporting criterion of the second event in which the measurement of the serving cell becomes worse than a second threshold; receiving the measurement report message including a result of the cell measurement to the network when the reporting criterion of a third event has been configured and the result of the cell measurement satisfies the reporting criterion of the third event in which a measurement of a neighboring cell becomes offset better than the serving cell; receiving the measurement report message including a result of the cell measurement to the network when the reporting criterion of a fourth event has been configured and the result of the cell measurement satisfies the reporting criterion of the fourth event in which the measurement of the neighboring cell becomes offset better than a third threshold; and receiving the measurement report message including a result of the cell measurement to the network when the reporting criterion of a fifth event has been configured and the result of the cell measurement satisfies the reporting criterion of the fifth event in which the measurement of the serving cell becomes worse than a forth threshold and the measurement of the neighboring cell becomes better than a fifth threshold, wherein if a plurality of serving cells including a primary cell (PCell) and at least one secondary cell (SCell) are configured in the user equipment (UE), the serving cell for the third event and the serving cell for the fifth event are each a PCell among the plurality of serving cells, and the measurement report message includes a measurement of the SCell and a cell identifier of the SCell.
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Specification