Mobile station apparatus, program for controlling thereof and data transmitting method
View Patent ↗In case that an uplink grant from a base station apparatus is detected on PDCCH, a data designated by the uplink grant, channel state information measured at the time of transmission are transmitted by PUSCH as an uplink transmission signal. Then, in case that a notice that indicates retransmission is received, the data to be retransmission and the channel state information measured at the time of retransmission are transmitted by PUSCH. Accordingly, the mobile station apparatus can transmit appropriate channel state information when designated to retransmission so that the base station apparatus can make an efficient communication control (scheduling) between the base station apparatus and the mobile station apparatus that is suitable for the current channel condition.
1. A mobile station apparatus comprising:
a transmission grant signal receiving unit for receiving, from a base station apparatus, a transmission grant signal for uplink data;
a channel state information acquiring unit for acquiring channel state information; and,
a data transmitting unit for transmitting the uplink data to the base station apparatus, in case that the transmission grant signal is received, wherein
in case that the transmission grant signal is a signal that includes a transmission request for channel state information and includes information designated for retransmission of the uplink data to the base station apparatus, the data transmitting unit transmits retransmission data of the uplink data having been transmitted to the base station apparatus, together with the channel state information that has been newly acquired by the channel state information acquiring unit based on the transmission request, to the base station apparatus.
2. The mobile station apparatus according to claim 1 , wherein the channel state information acquiring unit acquires the channel state information each time the transmission grant signal that includes the transmission request for the channel state information is detected.
3. A data transmitting method in which, in case that a mobile station apparatus receives a transmission grant signal for uplink data from a base station apparatus, the mobile station apparatus transmits the uplink data to the base station apparatus, the method comprising the step of:
in case that the transmission grant signal is a signal that includes a transmission request for channel state information and includes information designated for retransmission of the uplink data to the base station apparatus,
transmitting retransmission data of the uplink data having been transmitted to the base station apparatus, together with the channel state information that has been newly acquired based on the transmission request, to the base station apparatus.
4. A non-transitory computer-readable medium having instructions stored thereon, said instructions are read and executed by a processor for controlling a mobile station apparatus, the processor is configured to perform the steps of:
receiving, from a base station apparatus, a transmission grant signal for uplink data;
acquiring channel state information;
transmitting the uplink data to the base station apparatus, in case that the transmission grant signal is received, wherein
in case that the transmission grant signal is a signal that includes a transmission request for channel state information and includes information designated for retransmission of the uplink data to the base station apparatus, retransmission data of the uplink data having been transmitted is transmitted to the base station apparatus, together with the channel state information that has been newly acquired based on the transmission request.