Uplink transmission skipping in a terminal apparatus
Provided is a terminal apparatus for communicating with a base station apparatus by using a primary cell (PCell) and an LAA secondary cell (LAA SCell). A first uplink transmission corresponding to a first uplink grant configured for the PCell is skipped, based on at least a state that a first parameter is configured. A second uplink transmission corresponding to a second uplink grant configured for the LAA SCell is skipped, based on at least a state that a second parameter is configured. A third uplink transmission in the PCell and a fourth uplink transmission in the LAA SCell are skipped, based on at least a state that a third parameter is configured. The third uplink transmission corresponds to a third uplink grant corresponding to a C-RNTI. The fourth uplink transmission corresponds to a fourth uplink grant corresponding to the C-RNTI.
1. A terminal apparatus for communicating with a base station apparatus by using a primary cell and an LAA (Licensed Assisted Access) secondary cell, the terminal apparatus comprising:
reception circuitry configured to receive information indicating a parameter skipUplinkTxDynamic; and
transmission circuitry configured to perform an uplink transmission, wherein
the transmission circuitry is further configured to:
skip a first uplink transmission at least based on a first configured uplink grant for the LAA secondary cell, the first configured uplink grant corresponding to the first uplink transmission,
skip a second uplink transmission in the primary cell in a case that the parameter skipUplinkTxDynamic is configured, and
skip a third uplink transmission in the LAA secondary cell in the case that the parameter skipUplinkTxDynamic is configured,
the second uplink transmission corresponds to a third uplink grant corresponding to a C-RNTI, and
the third uplink transmission corresponds to a fourth uplink grant corresponding to the C-RNTI.
2. A communication method used in a terminal apparatus for communicating with a base station apparatus by using a primary cell and an LAA (Licensed Assisted Access) secondary cell, the communication method comprising:
receiving information for indicating a parameter skipUplinkTxDynamic;
performing an uplink transmission;
skipping a first uplink transmission at least based on a first configured uplink grant for the LAA secondary cell, the first configured uplink grant corresponding to the first uplink transmission;
skipping a second uplink transmission in the primary cell in a case that the parameter skipUplinkTxDynamic is configured; and
skipping a third uplink transmission in the LAA secondary cell in a case that the parameter skipUplinkTxDynamic is configured, wherein
the second uplink transmission corresponds to a third uplink grant corresponding to a C-RNTI, and
the third uplink transmission corresponds to a fourth uplink grant corresponding to the C-RNTI.