摘要:
In a wireless communication system that performs non-linear pre-coding, degradation in transmission performance due to a feedback error is improved. The terminal device according to the present invention is a terminal device which receives radio signals that are space-multiplexed and on which non-linear pre-coding is performed, from a base station device including multiple antennas, the terminal device including: a channel state estimator 53 that estimates channel state information on a channel between the terminal device and the base station device; a terminal antenna module 51 that acquires a linear filter that is calculated in the base station device; and a channel equalization module 57 that performs channel equalization processing on the radio signals that are received at a first point in time, based on the channel state information at a second point in time that precedes the first point in time and on the linear filter.
摘要:
A radio receiving apparatus is notified of whether a multi-user multiplexing transmission signal that is transmitted from a radio transmitting apparatus is the multi-user MIMO or the OFDMA without increasing a control information amount. The radio transmitting apparatus includes a scheduling section 115 that selects any one group from a plural groups that represent combinations of the plural radio receiving apparatuses, and a transmit symbol generating section 125 that generates a transmit signal by multiplexing data to be transmitted to the plural radio receiving apparatuses belonging to the selected group by the multiplexing method in advance determined corresponding to an identification number added to the selected group.
摘要:
A terminal device knows which kind of pre-coding has been applied without increasing overhead in a wireless communication system in which plural kinds of pre-coding are selectively or simultaneously used.A pre-coding device that is applied to a wireless communication device that performs wireless communication with a wireless receiving device applies, based on control information obtained from the wireless receiving device, the pre-coding to a data signal and plural kinds of specific reference signals, provides phase rotation to the plural kinds of specific reference signals, and associates phase rotation amounts of the phase rotation with information that is notified to the wireless receiving device.
摘要:
Provided is a transmission unit that, if transmission of a PUCCH of a first CG overlaps transmission of a PUSCH and/or a PUCCH of a second CG in a certain subframe and UCI including HARQ-ACK is transmitted on the PUCCH of the first CG, upon transmit power of the PUCCH of the first CG exceeding a first upper limit value, performs scaling on the transmit power of the PUCCH of the first CG such that the transmit power of the PUCCH does not exceed the first upper limit value, and upon the transmit power of the PUCCH of the first CG not exceeding the first upper limit value, sets the transmit power of the PUCCH of the first CG to power required for the PUCCH of the first CG.
摘要:
A terminal communicating with a base station by using an FDD cell and a TDD cell includes a reception unit that performs reception over a PDCCH transmitted using a DCI format. In a case where the TDD cell is configured as a primary cell for the terminal, a first uplink reference UL-DL configuration used for determining an interval between reception of the PDCCH indicating transmission of a PUSCH and the transmission of the PUSCH is configured for the TDD cell, and a second uplink reference UL-DL configuration used for determining whether or not to use DAI included in the DCI format of the PDCCH indicating the transmission of the PUSCH is configured for the FDD cell.
摘要:
A search space of a control channel which is monitored by a terminal is determined based on a first uplink-downlink configuration specific to a base station, a second uplink-downlink configuration specific to a terminal, and one or more EPDCCH subframe configuration, for each subframe. A scrambling sequence parameter which corresponds to the search space of the control channel and is used in scrambling of the control channel is switched. The terminal switches the scrambling sequence parameter, corresponding to the search space and a subframe configuration, and the terminal receives a DMRS and descrambles an EPDCCH by using the switched scrambling sequence parameter.
摘要:
A cell using an unallocated frequency band or a shared frequency band is efficiently controlled. A terminal device includes a reception unit configured to receive a physical downlink control channel (PDCCH) in a secondary cell having a frame structure type 3. Upon the terminal device detecting, in the secondary cell having the frame structure type 3, the PDCCH having downlink control information (DCI) in a subframe n, the terminal device assumes a configuration of occupied OFDM symbols in the secondary cell in accordance with a field in the DCI detected in the subframe n.
摘要:
A terminal communicating with a base station by using an FDD cell and a TDD cell includes a reception unit that performs reception over a PDCCH transmitted using a DCI format. In a case where the TDD cell is configured as a primary cell for the terminal, a first uplink reference UL-DL configuration used for determining an interval between reception of the PDCCH indicating transmission of a PUSCH and the transmission of the PUSCH is configured for the TDD cell, and a second uplink reference UL-DL configuration used for determining whether or not to use DAI included in the DCI format of the PDCCH indicating the transmission of the PUSCH is configured for the FDD cell.
摘要:
A terminal device communicating with a base station device includes a reception unit which performs first measurement based on a first RS and performs second measurement based on a second RS; and a higher layer processing unit which reports a first measurement result obtained by the first measurement and a second measurement result obtained by the second measurement to the base station device. The first measurement is performed in a first state. The first measurement or the second measurement is performed in a second state.
摘要:
A terminal device includes a reception unit which performs first measurement when a predetermined cell is in a first state and second measurement when the predetermined cell is in a second state, and a higher layer processing unit which reports the first measurement or the second measurement to a base station device. Based on information indicating the first state/the second state of the predetermined cell, the first measurement and the second measurement are switched.