MOBILE STATION APPARATUS, BASE STATION APPARATUS, WIRELESS COMMUNICATION SYSTEM, CONTROL METHOD, AND INTEGRATED CIRCUIT
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Accused Products
Abstract
In a mobile station that performs communication with a base station device via a plurality of cells, the plurality of cells are grouped into a first group constituted by cells having an uplink transmission timing that is the same as that of one primary cell and a second group constituted by one or more cells having an uplink transmission timing that is different from that of the primary cell. The uplink transmission timings are each managed using a corresponding transmission timing timer for each of the groups. In a case where a transmission timing timer for the first group has expired, the mobile station stops all uplink transmissions in the plurality of cells. In a case where a transmission timing timer for the second group has expired, the mobile station stops uplink transmissions in the cells constituting the second group for which the transmission timing timer has expired.
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Citations
19 Claims
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1-12. -12. (canceled)
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13. A mobile station apparatus that is assigned a plurality of cells by a base station apparatus and that performs communication with the base station apparatus via the plurality of cells,
the plurality of cells being grouped into a first group and a second group, the first group being constituted by one or more cells having a first uplink transmission timing and the first group including a primary cell, the second group being constituted by one or more secondary cells having a second uplink transmission timing that is different from the first uplink transmission timing, and the uplink transmission timings being each managed by using a corresponding transmission timing timer for each of the groups, the mobile station apparatus is configured: -
to delete, in a case where a transmission timing timer for the first group has expired, all data that is stored in a transmission HARQ buffer in association with the plurality of cells, and to delete, in a case where a transmission timing timer for the second group has expired, data that is stored in the transmission HARQ buffer in association with the cells constituting the second group. - View Dependent Claims (14, 15)
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16. A base station apparatus that assigns a plurality of cells to a mobile station apparatus and that performs communication with the mobile station apparatus via the cells,
the plurality of cells being grouped into a first group and a second group, the first group being constituted by one or more cells having a first uplink transmission timing and the first group including a primary cell, the second group being constituted by one or more secondary cells having a second uplink transmission timing that is different from the first uplink transmission timing, and the uplink transmission timings being each managed by using a corresponding transmission timing timer for each of the groups, the base station apparatus is configured: -
to stop, in a case where a transmission timing timer for the first group has expired, physical-uplink-shared-channel allocation processing for the plurality of cells, and to stop, in a case where a transmission timing timer for the second group has expired, physical-uplink-shared-channel allocation processing for the cells constituting the second group. - View Dependent Claims (17, 18)
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19. A control method for controlling a mobile station apparatus that is assigned a plurality of cells by a base station apparatus and that performs communication with the base station apparatus via the cells,
the plurality of cells being grouped into a first group and a second group, the first group being constituted by one or more cells having a first uplink transmission timing and the first group including a primary cell, the second group being constituted by one or more secondary cells having a second uplink transmission timing that is different from the first uplink transmission timing, and the uplink transmission timings being each managed by using a corresponding transmission timing timer for each of the groups, the control method comprising: -
deleting, in a case where a transmission timing timer for the first group has expired, all data that is stored in a transmission HARQ buffer in association with the plurality of cells; and deleting, in a case where a transmission timing timer for the second group has expired, data that is stored in the transmission HARQ buffer in association with the cells constituting the second group.
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Specification