Mobile communication system, base station apparatus, and mobile station apparatus

摘要

The present invention reduces the amount of control information for specifying the transmission method for simultaneously transmitting the uplink data and the reception quality information as well as the uplink data and the ACK/NACK, reduces delay occurring in changing the transmission method, and realizes the mapping of the uplink data and the reception quality information and that of the uplink data and the ACK/NACK, in compliance with modulation scheme and coding rate of the uplink data specified by the base station apparatus. In the mobile communication system where the base station apparatus allocates, to the mobile station apparatus, resources wherein the base station apparatus transmits, to the mobile station apparatus, control information for specifying a transmission format for the mobile station apparatus to transmit information using the uplink, while the mobile station apparatus simultaneously transmits, to the base station apparatus, the uplink data and the reception quality information based on the specified transmission format in case of having received the control information from the base station apparatus.

主权项

1. A mobile communication system comprising:
a base station configured to: transmit, to a mobile station, a grant signal including resource allocation information specifying uplink resources of a physical uplink shared channel (PUSCH) being allocated to the mobile station, wherein the uplink resources are defined as symbols in a time domain and subcarriers in a frequency domain, and the mobile station configured to: calculate a number of positive acknowledgement or negative acknowledgement (ACK/NACK) symbols pertaining to downlink data to communicate in the PUSCH in accordance with an amount of uplink resources allocated to the mobile station by the resource allocation information; map the number of ACK/NACK symbols onto a part of symbols in the time domain of the uplink resources, wherein the number of ACK/NACK symbols mapped on the uplink resources does not exceed an upper threshold determined by the part of symbols in the time domain of the uplink resources; and transmit, to the base station, the number of ACK/NACK symbols together with uplink data over the PUSCH.