摘要:
A mobile station apparatus 2 is assigned multiple component carriers in an uplink and a downlink by a base station apparatus and communicates with the base station apparatus by using the component carriers. The mobile station apparatus 2 includes a downlink control channel detector 67 and a carrier component identifying unit 53a. The downlink control channel detector 67 detects a downlink control channel from multiple search spaces where to detect the downlink control channel. From the search space where the downlink control channel detected by the downlink control channel detector 67 is arranged, the carrier component identifying unit 53a identifies the component carriers controlled with downlink control information transmitted in the downlink control channel and addressed to the mobile station apparatus. This makes it possible to identify the component carrier controlled with the downlink control information (DCI) transmitted in the downlink control channel (PDCCH) without increasing the coding ratio of the downlink control channel (PDCCH).
摘要:
A mobile station device includes: a management unit managing generation of uplink control information; a transmission power parameter setting unit setting a value of a parameter relevant to transmission power in accordance with the number of information bits of receipt acknowledgement and scheduling request, when the management unit generates the receipt acknowledgement which is uplink control information indicating positive or negative acknowledgement for downlink data and the scheduling request which is uplink control information indicating whether to request resource allocation; and a transmission processing unit controlling, by means of the parameter value set by the transmission power parameter setting unit, the transmission power for a physical uplink control channel used for transmitting a signal generated from the information bits of the receipt acknowledgement and the scheduling request, and transmitting the signal to a base station device using the physical uplink control channel with the controlled transmission power.
摘要:
A mobile station apparatus 2 is assigned multiple component carriers in an uplink and a downlink by a base station apparatus and communicates with the base station apparatus by using the component carriers. The mobile station apparatus 2 includes a downlink control channel detector 67 and a carrier component identifying unit 53a. The downlink control channel detector 67 detects a downlink control channel from multiple search spaces where to detect the downlink control channel. From the search space where the downlink control channel detected by the downlink control channel detector 67 is arranged, the carrier component identifying unit 53a identifies the component carriers controlled with downlink control information transmitted in the downlink control channel and addressed to the mobile station apparatus. This makes it possible to identify the component carrier controlled with the downlink control information (DCI) transmitted in the downlink control channel (PDCCH) without increasing the coding ratio of the downlink control channel (PDCCH).
摘要:
A mobile station device communicates with a base station device. The mobile station device—includes a reception unit receiving downlink data and a downlink control channel including information indicating a radio resource for contention based signal transmission, and a transmission unit-transmitting at least one of ACK/NACK for the downlink data and a contention based signal when the ACK/NACK and the contention based signal collide with each other in the same uplink time frame.
摘要:
In a radio communication system where a mobile station apparatus uses a same PUSCH to transmit a plurality of pieces of uplink data to a base station apparatus, the uplink data stored in a HARQ buffer is effectively controlled. A mobile station apparatus 1 counts the number of times the uplink data is retransmitted for each piece of uplink data transmitted by the same PUSCH, and flushes, in case that the number of times a certain piece of uplink data is retransmitted reaches a predetermined value, only the uplink data in which the number of times of retransmission stored in the HARQ buffer reaches the predetermined value.
摘要:
A communication system, a mobile station device, a base station device, and a processing method for carrying out processing involved in introducing a contention based uplink efficiently, and carrying out communication promptly are provided. A mobile station device communicating with a base station device in a mobile communication system obtains an uplink grant from the base station device, and when the uplink grant is a normal grant, cancels a pending scheduling request, and when the uplink grant is a grant for a contention based uplink, not canceling the pending scheduling request.
摘要:
To efficiently control channel quality indicators CQIs in response to a plurality of downlink component frequency bands in a wireless communication system using a plurality of component frequency bands, and enable a mobile station apparatus to suitably transmit signals including the channel quality indicators CQIs, the mobile station apparatus is provided with an uplink control data generation part 407 that generates a channel quality indicator in response to each of the downlink component frequency bands, an uplink control channel selection part 409 that selects a particular radio resource when a plurality of radio resources, which are beforehand allocated from the base station apparatus to transmit the channel quality indicator for each of the downlink component frequency bands, occurs in the same time frame, and a transmission processing part 405 that arranges the channel quality indicator generated in the uplink control data generation part 407 in the radio resource selected in the uplink control channel selection part 409 to transmit to the base station apparatus.
摘要:
To efficiently control channel quality indicators CQIs in response to a plurality of downlink component frequency bands in a wireless communication system using a plurality of component frequency bands, and enable a mobile station apparatus to suitably transmit signals including the channel quality indicators CQIs, the mobile station apparatus is provided with an uplink control data generation part 407 that generates a channel quality indicator in response to each of the downlink component frequency bands, an uplink control channel selection part 409 that selects a particular radio resource when a plurality of radio resources, which are beforehand allocated from the base station apparatus to transmit the channel quality indicator for each of the downlink component frequency bands, occurs in the same time frame, and a transmission processing part 405 that arranges the channel quality indicator generated in the uplink control data generation part 407 in the radio resource selected in the uplink control channel selection part 409 to transmit to the base station apparatus.
摘要:
A base station device, which allocates one or more subbands of each of an uplink and a downlink to a mobile station device and transmits response information, which indicates whether or not uplink data from the mobile station device has been properly received, to the mobile station device, the base station device includes: a control unit (11) which controls an arrangement of a response information group including multiple pieces of response information directed to a downlink subband allocated to the mobile station device; and a multiplexing unit (160) which collects the same type of multiple pieces of response information to configure the response information group, and arranges the configured response information group in the downlink subband based on the control of the control unit.
摘要:
A base station device includes: a control information generating section which generates control information specific to mobile station devices; a control information count indicator generating section which generates a control information count indicator indicating the number of pieces of generated control information of each mobile station device; and a transmitting section which transmits the control information count indicator and the control information. The mobile station device includes: a receiving section which receives a control information count indicator and control information transmitted from the base station device within a mobile station-specific search space selected based on a mobile station ID of the mobile station device; a control information count indicator detecting section which detects the control information indicator; and a control channel decoding section which decodes the control channel in response to the number of pieces of detected control information.