Abstract: There is a concern that communication failure may occur in a case that the state of a serving cell is not properly managed during communication of SPS or GF. A mobile station apparatus of a communication system including at least a base station apparatus and a mobile station apparatus configured to perform communication by using carrier aggregation that simultaneously uses multiple serving cells configured by the base station apparatus according to an aspect of the present invention, wherein the mobile station apparatus restarts a deactivation timer of a serving cell of the multiple serving cells at a timing indicated by a configured uplink grant configured for the serving cell.

Abstract: In a case that multiple configured uplink grants are configured in a single serving cell, there is a problem that normal communication cannot be performed unless appropriate control is performed to prevent transmissions in a radio resource (slot) of the same timing. A mobile station apparatus in a communication system including at least a base station apparatus and the mobile station apparatus for which the base station apparatus allocates a normal uplink and a supplementary uplink in a single serving cell, wherein the mobile communication apparatus is configured to configure a configured uplink grant individually for each of the normal uplink and the supplementary uplink, and validate, in a case that the serving cell is activated, one of the configured uplink grant configured for the normal uplink and the configured uplink grant configured for the supplementary uplink and suspend another one.

Abstract: The present invention provides a terminal apparatus for communicating with a base station apparatus, the terminal apparatus including: a controller configured to use an MCS table among a first MCS table, a second MCS table, and a third MCS table, and an MCS index, to determine a modulation order and a target coding rate to be used in a PDSCH, wherein the third MCS table is used in a case that at least a higher parameter for an MCS table is configured to a prescribed value, and a PDSCH is scheduled by a PDCCH with a CRC scrambled by a first RNTI, or a PDSCH is scheduled by a PDCCH with a CRC scrambled by a second RNTI is added.

Abstract: To provide a base station apparatus, a terminal apparatus, and a communication method that enable to secure high reliability and low latency of URLLC. An apparatus includes a receiver configured to detect a DCI format, and a transmitter configured to perform first data transmission based on a first DCI format and second data transmission based on a second DCI format. The receiver detects the first DCI format for the first data transmission in a first CC, and detects the second DCI format for the second data transmission in a second CC. In a case that the first data transmission and the second data transmission overlap in a time domain, and a sum of transmit power of the first data transmission and transmit power the second data transmission exceeds maximum transmit power, the transmitter allocates the transmit power to the first data transmission not to exceed the maximum transmit power.

Abstract: To provide a base station apparatus, a terminal apparatus, and a communication method capable of ensuring high reliability of URLLC using a scheduled access.

Abstract: In a case that an uplink timing alignment timer expires, Type 1 configured uplink grants configured in all serving cells belonging to a TAG associated with the uplink timing alignment timer are suspended. A random access response including a timing advance command configured for the TAG is received. In a case that a random access preamble included in the random access response is not a contention based random access preamble, or in a case that the random access response includes the contention based random access preamble and includes information indicating successful random access contention resolution, and the timing alignment timer associated with the TAG is not running, the Type 1 configured uplink grants configured and suspended in the all serving cells belonging to the TAG are re-initialized.

Abstract: In a case that multiple configured uplink grants are configured in a single serving cell, there is a problem that normal communication cannot be performed unless appropriate control is performed to prevent transmissions in a radio resource (slot) of the same timing. A mobile station apparatus in a communication system including at least a base station apparatus and the mobile station apparatus for which the base station apparatus allocates a normal uplink and a supplementary uplink in a single serving cell, wherein the mobile communication apparatus is configured to configure a configured uplink grant individually for each of the normal uplink and the supplementary uplink, and validate, in a case that the serving cell is activated, one of the configured uplink grant configured for the normal uplink and the configured uplink grant configured for the supplementary uplink and suspend another one.

Abstract: There is a concern that communication failure may occur in a case that the state of a serving cell is not properly managed during communication of SPS or GF. A mobile station apparatus of a communication system including at least a base station apparatus and a mobile station apparatus configured to perform communication by using carrier aggregation that simultaneously uses multiple serving cells configured by the base station apparatus according to an aspect of the present invention, wherein the mobile station apparatus restarts a deactivation timer of a serving cell of the multiple serving cells at a timing indicated by a configured uplink grant configured for the serving cell.

Abstract: A terminal apparatus for communicating with a base station apparatus, the terminal apparatus including: a receiver configured to receive control information; and a transmitter configured to perform data transmission in accordance with the control information, wherein the receiver receives at least RRC and DCI, the RRC includes configuration of a target received power, a fractional TPC, and an index of a closed loop TPC to be used for PUSCH transmission, and information for indicating at least a target received power, a fractional TPC, and an index of a closed loop TPC as parameters for transmission power control to be switched depending on the DCI, and in a case that the DCI for indicating switching of a transmission power value is detected, a transmission power used for data transmission is caused to be different from a transmission power value calculated using parameters notified as the parameters for transmission power control to be switched.