JP2019145850A - Terminal device, base station apparatus, communication method, and integrated circuit - Google Patents

Abstract

To efficiently execute uplink transmission.SOLUTION: In a terminal device, when performing first PUSCH transmission including a first transport block based on detection of first PDCCH, the number of encoding bits of uplink control information included in third PUSCH transmission is provided at least on the basis of first M obtained from the first PDCCH and the first number of SC-FDMA symbol for the first PUSCH transmission for the first transport block, and when dropping the first PUSCH transmission including the first transport block based on detection of the first PDCCH, the number of encoding bits of the uplink control information is provided at least on the basis of the second M obtained from the second PDCCH and the second number of the SC-FDMA symbol for the second PUSCH transmission for the first transport block.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a terminal device, a base station device, a communication method, and an integrated circuit.

A wireless access method and a wireless network for cellular mobile communications (hereinafter referred to as “Long Term Evolution (LTE: registered trademark)” or “Evolved Universal Terrestrial Radio Access: EUTRA”) Partnership Project: 3GPP). In LTE, eN
odeB (evolved NodeB) and a terminal device are also called UE (User Equipment). LTE is a cellular communication system in which a plurality of areas covered by a base station apparatus are arranged in a cell shape. A single base station apparatus may manage a plurality of cells.

In LTE Release 13, carrier aggregation, which is a technique in which a terminal apparatus simultaneously transmits and / or receives in a plurality of serving cells (component carriers), is specified (Non-Patent Documents 1, 2, and 3). In LTE Release 14, the extension of license assisted access (LAA) and carrier aggregation using uplink carriers in an unlicensed band are being studied (Non-patent Document 4). Non-Patent Document 5 discloses that HARQ-ACK feedback for an uplink carrier in an unlicensed band is transmitted by PUSCH based on a trigger by a base station apparatus.

"3GPP TS 36.211 V13.1.0 (2016-03)", 29th March, 2016. "3GPP TS 36.212 V13.1.0 (2016-03)", 29th March, 2016. "3GPP TS 36.213 V13.1.1 (2016-03)", 31th March, 2016. "New Work Item on enhanced LAA for LTE", RP-152272, Ericsson, Huawei, 3GPP TSG RAN Meeting # 70, Sitges, Spain, 7th-10th December 2015. "UCI transmission on LAA carrier", R1-164994, Sharp, 3GPP TSG RAN1 Meeting # 85, Nanjing, China, 23rd-27th May 2016.

  The present invention provides a terminal device that can efficiently perform uplink transmission, a communication method used in the terminal device, an integrated circuit mounted on the terminal device, and can efficiently receive uplink transmission. A base station apparatus, a communication method used for the base station apparatus, and an integrated circuit mounted on the base station apparatus are provided.

(1) The aspect of this invention took the following means. That is, the 1st aspect of this invention is a terminal device, Comprising: 1st PDCCH containing a 1st uplink grant, 2nd PDCCH containing a 2nd uplink grant, and 3rd uplink Based on the reception unit that receives the third PDCCH including the grant and the detection of the first PDCCH, performs the first PUSCH transmission including the first transport block, and based on the detection of the second PDCCH And performing second PUSCH transmission including the first transport block, and based on detection of the third PDCCH, uplink control information and third PUSCH including the first transport block. A transmission unit that performs transmission, the first PUSCH transmission including the first transport block based on detection of the first PDCCH. If is carried out, the number of coded bits of the uplink control information included in the transmission the third PUSCH is first M ^{PUSCH-initial} _sc obtained from the first PDCCH, and the first The first transformer based on detection of the first PDCCH, given at least based on a first number N ^{PUSCH-initial} _symbol of SC-FDMA symbols for the first PUSCH transmission for a transport block When the first PUSCH transmission including a port block is dropped, the number of encoded bits of the uplink control information is the second M ^{PUSCH-initial} _sc obtained from the second PDCCH, and the first based at least on SC-FDMA second number N ^{PUSCH-initial} _symbol of the symbol for the second PUSCH transmission for the first transport block Erareru.

(2) A second aspect of the present invention is a base station apparatus, wherein the first PDCCH including the first uplink grant, the second PDCCH including the second uplink grant, and the third A receiving unit that receives a third PDCCH including an uplink grant, and receives a first PUSCH including a first transport block based on the first PDCCH, and based on the second PDCCH , Receiving the second PUSCH including the first transport block, and receiving the uplink control information and the third PUSCH including the first transport block based on the third PDCCH. And when the first PUSCH transmission including the first transport block based on the first PDCCH is performed, The number of coded bits of the uplink control information included in the third PUSCH transmission, the first first obtained from PDCCH of M ^{PUSCH-initial} _sc, and, for the first transport block The first number of SC-FDMA symbols for the first PUSCH transmission is given based at least on a N ^{PUSCH-initial} _symbol and includes the first transport block based on detection of the first PDCCH. When one PUSCH transmission is dropped, the number of coded bits of the uplink control information is the second M ^{PUSCH-initial} _sc obtained from the second PDCCH and the first transport block. A second number N of SC-FDMA symbols for the second PUSCH transmission for N ^{PUSCH-initial} _symbol .

(3) A third aspect of the present invention is a communication method used for a terminal apparatus, the first PDCCH including the first uplink grant, the second PDCCH including the second uplink grant, and , Receiving the third PDCCH including the third uplink grant, performing the first PUSCH transmission including the first transport block based on the detection of the first PDCCH, and the second PDCCH The second PUSCH transmission including the first transport block is performed based on the detection, and the uplink control information and the first transport block including the first transport block are detected based on the detection of the third PDCCH. 3 PUSCH transmission is performed, and the first PUSCH transmission including the first transport block based on detection of the first PDCCH is performed. Case, the number of coded bits of the uplink control information included in the transmission the third PUSCH, the first first obtained from PDCCH of M ^{PUSCH-initial} _sc, and, the first transport block A first number of SC-FDMA symbols for the first PUSCH transmission for N ^{PUSCH-initial} _symbol, and the first transport block based on detection of the first PDCCH When the included first PUSCH transmission is dropped, the number of coded bits of the uplink control information includes the second M ^{PUSCH-initial} _sc obtained from the second PDCCH and the first transformer. provided at least based on the SC-FDMA second number N ^{PUSCH-initial} _symbol of the symbol for the second PUSCH transmission for the port block

(4) A fourth aspect of the present invention is a communication method used for a base station apparatus, and includes a first PDCCH including a first uplink grant and a second PDC including a second uplink grant.
Receiving the third PDCCH including the CH and the third uplink grant, receiving the first PUSCH including the first transport block based on the first PDCCH, and receiving the second PUSCH including the first transport block. The second PUSCH including the first transport block is received based on the PDCCH, and the uplink control information and the third transport block including the first transport block are based on the third PDCCH. Of the uplink control information included in the third PUSCH transmission when the first PUSCH transmission including the first transport block based on the first PDCCH is performed. The number of quantization bits includes the first ^{MPUSCH-initial} _sc obtained from the first PDCCH and the first transport block. The first transport based on detection of the first PDCCH, given at least based on a first number N ^{PUSCH-initial} _symbol of SC-FDMA symbols for the first PUSCH transmission for When the first PUSCH transmission including a block is dropped, the number of encoded bits of the uplink control information includes a second MPUSCH-initialsc obtained from the second PDCCH, and the first transformer. A second number of SC-FDMA symbols N ^{PUSCH-initial} _symbol for said second PUSCH transmission for a port block is provided based at least on.

(5) A fifth aspect of the present invention is an integrated circuit implemented in a terminal device, and includes a first PDCCH including a first uplink grant, a second PDCCH including a second uplink grant, And, based on detection of the first PDCCH, a receiving circuit that receives a third PDCCH including a third uplink grant, performs first PUSCH transmission including a first transport block, and Second PUSCH transmission including the first transport block based on the detection of the second PDCCH, and uplink control information and the first transport based on the detection of the third PDCCH A transmission circuit for performing a third PUSCH transmission including a block, and including a first transport block based on detection of the first PDCCH If the first PUSCH transmission is performed, the number of coded bits of the uplink control information included in the transmission the third PUSCH is first M ^{PUSCH-initial} _sc obtained from the first PDCCH, and , Given based at least on a first number N ^{PUSCH-initial} _symbol of SC-FDMA symbols for the first PUSCH transmission for the first transport block and based on detection of the first PDCCH When the first PUSCH transmission including the first transport block is dropped, the number of encoded bits of the uplink control information is a second M ^{PUSCH-initial} _sc obtained from the second PDCCH. , and the SC-FDMA second number N ^{PUSCH-initial} _symbol of the symbol for the second PUSCH transmission for the first transport block It provided at least based.

(6) A sixth aspect of the present invention is an integrated circuit implemented in a base station apparatus, and includes a first PDCCH including a first uplink grant and a second PDCCH including a second uplink grant. And a receiving circuit for receiving a third PDCCH including a third uplink grant, and receiving a first PUSCH including a first transport block based on the first PDCCH, and The second PUSCH including the first transport block is received based on the second PDCCH, and the uplink control information and the first transport block are included based on the third PDCCH. Receiving circuit for receiving the third PUSCH, and including the first transport block based on the first PDCCH. If the transmission is performed, the number of coded bits of the third PUSCH said uplink control information included in the transmission, the first M ^{PUSCH-initial} _sc obtained from the first PDCCH, and the first A first number N of SC-FDMA symbols for the first PUSCH transmission for the first transport block N ^{PUSCH-initial} _symbol and the first number based on detection of the first PDCCH When the first PUSCH transmission including a transport block is dropped, the number of coded bits of the uplink control information is a second M ^{PUSCH-initial} obtained from the second PDCCH.
_sc and a second number N ^{PUSCH-initial} _symbol of SC-FDMA symbols for the second PUSCH transmission for the first transport block.

  According to the present invention, the terminal device can efficiently perform uplink transmission. Also, the base station apparatus can efficiently receive uplink transmission.

It is a conceptual diagram of the radio | wireless communications system of this embodiment. It is a figure which shows schematic structure of the radio | wireless frame of this embodiment. It is a figure which shows schematic structure of the uplink slot in this embodiment. It is a schematic block diagram which shows the structure of the terminal device 1 of this embodiment. It is a schematic block diagram which shows the structure of the base station apparatus 3 of this embodiment. Uplink data in this embodiment _{(a x), CQI / PMI} (o x), RI (a x), and is a diagram showing an example of the encoding process of HARQ-ACK _{(a x).} It is a figure which shows the example of multiplexing and interleaving of the encoding bit in this embodiment. It is a figure which shows the 1st example of PUSCH initial stage transmission in this embodiment, and initial PDCCH. It is a figure which shows the 2nd example of PUSCH initial transmission in this embodiment, and initial PDCCH. It is a figure which shows the 3rd example of PUSCH initial transmission in this embodiment, and initial PDCCH.

  Hereinafter, embodiments of the present invention will be described.

  FIG. 1 is a conceptual diagram of the wireless communication system of the present embodiment. In FIG. 1, the wireless communication system includes terminal devices 1 </ b> A to 1 </ b> C and a base station device 3. Hereinafter, the terminal devices 1A to 1C are referred to as the terminal device 1.

  Hereinafter, carrier aggregation will be described.

  In the present embodiment, the terminal device 1 is set with a plurality of serving cells. A technique in which the terminal device 1 communicates via a plurality of serving cells is referred to as cell aggregation or carrier aggregation. The present invention may be applied to each of a plurality of serving cells set for the terminal device 1. In addition, the present invention may be applied to some of the set serving cells. In addition, the present invention may be applied to each of a plurality of set serving cell groups. Further, the present invention may be applied to a part of the set groups of a plurality of serving cells. The plurality of serving cells include at least one primary cell. The plurality of serving cells may include one or a plurality of secondary cells. The plurality of serving cells may include one or a plurality of LAA (Licensed Assisted Access) cells. The LAA cell is also referred to as an LAA secondary cell.

The primary cell is a serving cell in which an initial connection establishment procedure has been performed, a serving cell in which a connection re-establishment procedure has been started, or a cell designated as a primary cell in a handover procedure. When an RRC (Radio Resource Control) connection is established,
Alternatively, a secondary cell and / or an LAA cell may be set later. The primary cell may be included in a licensed band. LAA cell is
It may be included in an unlicensed band. The secondary cell may be included in either a license band or an unlicensed band. The LAA cell may be referred to as an LAA secondary cell.

  In the downlink, a carrier corresponding to a serving cell is referred to as a downlink component carrier. In the uplink, a carrier corresponding to a serving cell is referred to as an uplink component carrier. The downlink component carrier and the uplink component carrier are collectively referred to as a component carrier.

  The terminal device 1 can perform transmission and / or reception on a plurality of physical channels simultaneously in a plurality of serving cells (component carriers). One physical channel is transmitted in one serving cell (component carrier) among a plurality of serving cells (component carriers).

  The physical channel and physical signal of this embodiment will be described.

In FIG. 1, the following uplink physical channels are used in uplink wireless communication from the terminal device 1 to the base station device 3. The uplink physical channel is used for transmitting information output from an upper layer.
・ PUSCH (Physical Uplink Shared Channel)
・ PRACH (Physical Random Access Channel)
PUSCH is uplink data (Transport block, Uplink-Shared Channel: UL-SCH), downlink CSI (Channel State Information), and / or HARQ-.
Used to transmit ACK (Hybrid Automatic Repeat reQuest). CSI and HARQ-ACK are uplink control information (UPCI).
It is.

  The CSI includes a channel quality indicator (CQI), an RI (Rank Indicator), and a PMI (Precoding Matrix Indicator). The CQI expresses a combination of a modulation scheme and a coding rate for a single transport block transmitted on the PDSCH. RI indicates the number of effective layers determined by the terminal device 1. PMI indicates a code book determined by the terminal device 1. The codebook is related to PDSCH precoding.

HARQ-ACK corresponds to downlink data (Transport block, Medium Access Control Protocol Data Unit: MAC PDU, Downlink-Shared Channel: DL-SCH, Physical Downlink Shared Channel: PDSCH). HARQ-ACK is ACK (acknowledgement)
Alternatively, NACK (negative-acknowledgement) is indicated. HARQ-ACK is also referred to as ACK / NACK, HARQ feedback, HARQ response, HARQ information, or HARQ control information.

  The PRACH is used for transmitting a random access preamble.

In FIG. 1, the following uplink physical signals are used in uplink wireless communication. Uplink physical signals are not used to transmit information output from higher layers, but are used by the physical layer.
DMRS (Demodulation Reference Signal)
DMRS is related to transmission of PUSCH. DMRS is time-multiplexed with PUSCH. The base station apparatus 3 may use DMRS to perform PUSCH propagation path correction.

In FIG. 1, the following downlink physical channels are used in downlink wireless communication from the base station apparatus 3 to the terminal apparatus 1. The downlink physical channel is used for transmitting information output from an upper layer.
・ PDCCH (Physical Downlink Control Channel)
The PDCCH is used to transmit downlink control information (Downlink Control Information: DCI). The downlink control information is also referred to as a DCI format. The downlink control information includes an uplink grant. The uplink grant may be used for scheduling a single PUSCH within a single cell. The uplink grant may be used for scheduling a plurality of PUSCHs in consecutive subframes within a single cell. The uplink grant may be used for scheduling a single PUSCH in a subframe that is four or more times after the subframe in which the uplink grant is transmitted.

  UL-SCH is a transport channel. A channel used in a medium access control (MAC) layer is referred to as a transport channel. A transport channel unit used in the MAC layer is also referred to as a transport block (TB) or a MAC PDU (Protocol Data Unit).

  Hereinafter, the configuration of the radio frame of the present embodiment will be described.

  FIG. 2 is a diagram illustrating a schematic configuration of a radio frame according to the present embodiment. In FIG. 2, the horizontal axis is a time axis. Each radio frame is 10 ms long. Each radio frame is composed of 10 subframes. Each subframe is 1 ms long and is defined by two consecutive slots. Each of the slots is 0.5 ms long. The i-th subframe in the radio frame is composed of a (2 × i) th slot and a (2 × i + 1) th slot. That is, 10 subframes can be used in each 10 ms interval.

  Hereinafter, an example of the configuration of the slot according to the present embodiment will be described. FIG. 3 is a diagram illustrating a schematic configuration of the uplink slot in the present embodiment. FIG. 3 shows the configuration of an uplink slot in one cell. In FIG. 3, the horizontal axis is a time axis, and the vertical axis is a frequency axis. In FIG. 3, l is an SC-FDMA symbol number / index, and k is a subcarrier number / index.

  The physical signal or physical channel transmitted in each of the slots is represented by a resource grid. In the uplink, the resource grid is defined by a plurality of subcarriers and a plurality of SC-FDMA symbols. Each element in the resource grid is referred to as a resource element. The resource element is represented by a subcarrier number / index k and an SC-FDMA symbol number / index l.

The uplink slot includes a plurality of SC-FDMA symbols l (l = 0, 1,..., N ^UL _symb ) in the time domain. N ^UL _symb is SC-FDMA included in one uplink slot
Indicates the number of symbols. N ^UL _symb is 7 for normal CP (normal cyclic prefix) in the ^uplink . N ^UL _symb is 6 for extended CP in the uplink.

The terminal device 1 receives the parameter UL-CyclicPrefixLength indicating the CP length in the uplink from the base station device 3. The base station apparatus 3 may broadcast the system information including the parameter UL-CyclicPrefixLength corresponding to the cell in the cell.

The uplink slot includes a plurality of subcarriers k (k = 0, 1,..., N ^UL _RB × N ^RB _sc ) in the frequency domain. N ^UL _RB is an uplink bandwidth setting for the serving cell, expressed as a multiple of N ^RB _sc . N ^RB _sc is a (physical) resource block size in the frequency domain expressed by the number of subcarriers. Subcarrier spacing Δf is 15 kHz
N ^RB _sc may be 12. That is, N ^RB _sc may be 180 kHz.

A resource block (RB) is used to represent a mapping of physical channels to resource elements. As the resource block, a virtual resource block (VRB) and a physical resource block (PRB) are defined. A physical channel is first mapped to a virtual resource block. Thereafter, the virtual resource block is mapped to the physical resource block. One physical resource block is defined by N ^UL _symb consecutive SC-FDMA symbols in the time domain and N ^RB _sc consecutive subcarriers in the frequency domain. therefore,
One physical resource block is composed of (N ^UL _symb × N ^RB _sc ) resource elements. One physical resource block corresponds to one slot in the time domain. In the frequency domain, physical resource blocks are numbered n _PRB (0, 1,..., N ^UL _RB −1) in order from the lowest frequency.

The downlink slot in the present embodiment includes a plurality of OFDM symbols. The configuration of the downlink slot in this embodiment is basically the same except that the resource grid is defined by a plurality of subcarriers and a plurality of OFDM symbols, and thus description of the configuration of the downlink slot is omitted. To do.

  Hereinafter, the configuration of the apparatus according to the present embodiment will be described.

FIG. 4 is a schematic block diagram illustrating the configuration of the terminal device 1 according to the present embodiment. As illustrated, the terminal device 1 includes a wireless transmission / reception unit 10 and an upper layer processing unit 14. The wireless transmission / reception unit 10 includes an antenna unit 11, an RF (Radio Frequency) unit 12, and a baseband unit 13. The upper layer processing unit 14 includes a medium access control layer processing unit 15 and a radio resource control layer processing unit 16. The wireless transmission / reception unit 10 is also referred to as a transmission unit, a reception unit, or a physical layer processing unit.

The upper layer processing unit 14 outputs uplink data (transport block) generated by a user operation or the like to the radio transmission / reception unit 10. The upper layer processing unit 14 includes a medium access control (MAC) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a radio resource control (Radio). Resource Control (RRC) layer processing.

  The medium access control layer processing unit 15 included in the upper layer processing unit 14 performs processing of the medium access control layer. The medium access control layer processing unit 15 controls the random access procedure based on various setting information / parameters managed by the radio resource control layer processing unit 16.

The radio resource control layer processing unit 16 included in the upper layer processing unit 14 performs processing of the radio resource control layer. The radio resource control layer processing unit 16 manages various setting information / parameters of the own device. The radio resource control layer processing unit 16 sets various setting information / parameters based on the upper layer signal received from the base station apparatus 3. That is, the radio resource control layer processing unit 1
6 sets various setting information / parameters based on the information indicating the various setting information / parameters received from the base station apparatus 3. The radio resource control layer processing unit 36 generates uplink data (transport block), RRC message, MAC CE (Control Element), etc. arranged on the PUSCH, and outputs them to the radio transmission / reception unit 30.

  The wireless transmission / reception unit 10 performs physical layer processing such as modulation, demodulation, encoding, and decoding. The radio transmission / reception unit 10 separates, demodulates, and decodes the signal received from the base station apparatus 3 and outputs the decoded information to the upper layer processing unit 14. The radio transmission / reception unit 10 generates a transmission signal by modulating and encoding data, and transmits the transmission signal to the base station apparatus 3.

The RF unit 12 converts the signal received via the antenna unit 11 into a baseband signal by orthogonal demodulation (down covert), and removes unnecessary frequency components. RF
The unit 12 outputs the processed analog signal to the baseband unit.

The baseband unit 13 converts the analog signal input from the RF unit 12 into a digital signal. The baseband unit 13 removes a portion corresponding to a CP (Cyclic Prefix) from the converted digital signal, performs a Fast Fourier Transform (FFT) on the signal from which the CP is removed, and converts the frequency domain signal. Extract.

  The baseband unit 13 performs inverse fast Fourier transform (IFFT) on the data to generate an SC-FDMA symbol, adds a CP to the generated SC-FDMA symbol, and converts the baseband digital signal to Generating and converting a baseband digital signal to an analog signal. The baseband unit 13 outputs the converted analog signal to the RF unit 12.

  The RF unit 12 removes an extra frequency component from the analog signal input from the baseband unit 13 using a low-pass filter, up-converts the analog signal to a carrier frequency, and transmits it via the antenna unit 11. To do. The RF unit 12 amplifies power. Further, the RF unit 12 may have a function of controlling transmission power. The RF unit 12 is also referred to as a transmission power control unit.

  FIG. 5 is a schematic block diagram showing the configuration of the base station device 3 of the present embodiment. As shown in the figure, the base station apparatus 3 includes a radio transmission / reception unit 30 and an upper layer processing unit 34. The wireless transmission / reception unit 30 includes an antenna unit 31, an RF unit 32, and a baseband unit 33. The upper layer processing unit 34 includes a medium access control layer processing unit 35 and a radio resource control layer processing unit 36. The wireless transmission / reception unit 30 is also referred to as a transmission unit, a reception unit, or a physical layer processing unit.

  The upper layer processing unit 34 includes a medium access control (MAC) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a radio resource control (Radio). Resource Control (RRC) layer processing.

The medium access control layer processing unit 35 provided in the upper layer processing unit 34 performs processing of the medium access control layer. The radio resource control layer processing unit 36 included in the upper layer processing unit 34 performs processing of the radio resource control layer. The radio resource control layer processing unit 36 generates downlink data (transport block), system information, RRC message, MAC CE (Control Element), etc. arranged in the PDSCH, or obtains it from the upper node, and transmits / receives the radio data Output to 30. The radio resource control layer processing unit 36 manages various setting information / parameters of each terminal device 1. The radio resource control layer processing unit 36 may set various setting information / parameters for each terminal device 1 via an upper layer signal. That is, the radio resource control layer processing unit 36 transmits / notifies information indicating various setting information / parameters.

  Since the function of the wireless transmission / reception unit 30 is the same as that of the wireless transmission / reception unit 10, description thereof is omitted.

  Each of the portions denoted by reference numerals 10 to 16 included in the terminal device 1 may be configured as a circuit. Each of the parts denoted by reference numerals 30 to 36 included in the base station device 3 may be configured as a circuit.

  In the present embodiment, a group of a plurality of LAA cells is referred to as a UCI cell group. HARQ-ACK for a plurality of LAA cells included in the UCI cell group may be transmitted on one or more LAA cells in the UCI cell group on PUSCH.

  The primary cell is not always included in the UCI cell group. The base station apparatus 3 may determine whether or not the LAA cell is included in the UCI cell group. The base station apparatus 3 may transmit to the terminal apparatus 1 information / upper layer parameter indicating whether the LAA cell is included in the UCI group.

  The uplink grant for the LAA cell included in the UCI cell group may include a CSI request and a HARQ-ACK request. A field mapped to a CSI request bit is also referred to as a CSI request field. A field mapped to the bits of the HARQ-ACK request is also referred to as a HARQ-ACK request field.

  When the HARQ-ACK request field included in the uplink grant for the LAA cell included in the UCI cell group is set to trigger HARQ-ACK transmission, the terminal apparatus 1 uses the HASCH using the PUSCH in the LAA cell. -Send ACK. For example, when the 1-bit HARQ-ACK request field is set to '0', transmission of HARQ-ACK may not be triggered. For example, if the 1-bit HARQ-ACK request field is set to '1', transmission of HARQ-ACK may be triggered.

  When the CSI request field included in the uplink grant for the LAA cell included in the UCI cell group is set so as to trigger the CSI report, the terminal apparatus 1 performs CSI report using the PUSCH in the LAA cell. For example, when the 2-bit CSI request field is set to '00', the CSI report may not be triggered. For example, if the 2-bit CSI request field is set to a value other than '00', a CSI report may be triggered.

Hereinafter, the encoding process of uplink data (a _x ), CQI / PMI (o _x ), RI (a _x ), and HARQ-ACK (a _x ) transmitted using PUSCH will be described.

FIG. 6 is a diagram illustrating an example of an encoding process of uplink data (a _x ), CQI / PMI (o _x ), RI (a _x ), and HARQ-ACK (a _x ) in the present embodiment. . In 600 to 603 in FIG. 6, uplink data, CQI / PMI, RI, and HARQ-ACK transmitted using PUSCH are individually encoded. In 604 of FIG. 6, uplink data coding bits (f _x ), CQI / PMI coding bits (q _x ), RI coding bits (g _x ), and HARQ-ACK coding bits ( h _x )
Are multiplexed and interleaved. In 605 of FIG. 6, a baseband signal (PUSCH signal) is generated from the encoded bits that have been multiplexed and interleaved in 604.

A matrix may be used for multiplexing / interleaving the coded bits. The columns of the matrix correspond to SC-FDMA symbols. One element of the matrix corresponds to one coded modulation symbol. A coded modulation symbol is a group of X coded bits. X is the modulation order (modulation order Q _m ) for PUSCH (uplink data)
It is. One complex-valued symbol is generated from one coded modulation symbol. A plurality of complex-valued symbols generated from a plurality of coded modulation symbols mapped to one column are allocated for PUSCH and mapped to subcarriers after DFT precoding.

  FIG. 7 is a diagram showing an example of multiplexing / interleaving of coded bits in the present embodiment. When HARQ-ACK and RI are transmitted using PUSCH, HARQ-ACK encoded modulation symbols are mapped to columns of indexes {2, 3, 8, 9}, and RI encoding is performed. Modulation symbols are mapped to columns with indices {1, 4, 7, 10}.

  The column with index {2, 3, 8, 9} corresponds to the SC-FDMA symbol next to the SC-FDMA symbol on which the DMRS associated with PUSCH transmission is transmitted. The DMRS is transmitted in the SC-FDMA symbol corresponding to the index 2 column and the SC-FDMA symbol between the SC-FDMA symbols corresponding to the index 3 column. The DMRS is transmitted in the SC-FDMA symbol between the SC-FDMA symbol corresponding to the index 8 column and the SC-FDMA symbol corresponding to the index 9 column. The column with index {1, 4, 7, 10} corresponds to the SC-FDMA symbol next to the SC-FDMA symbol in which the DMRS related to PUSCH transmission is transmitted.

  Hereinafter, a method of calculating the number of RI encoded bits (G) and the number of HARQ-ACK encoded bits (H) will be described. The number of RI encoded bits (G) and the number of HARQ-ACK encoded bits (H) may be given by Equations (1) and (2) below. Note that this embodiment may be applied to CQI / PMI.

ｍｉｎ（）は、入力された複数の値のうち最小の値を返す関数である。ｃｅｉｌ（）は、入力された値より大きい、最も小さい整数を返す関数である。ＯはＲＩのビット数、または、ＨＡＲＱ−ＡＣＫのビット数である。ＬはＲＩまたはＨＡＲＱ−ＡＣＫに付加されるＣＲＣパリティビットの数である。Ｃはコードブロックの数である。Ｋ_ｒはコードブロックｒのサイズである。１つのトランスポートブロックを分割することによって、複数のコードブロックが与えられる。

min () is a function that returns the minimum value among a plurality of input values. ceil () is a function that returns the smallest integer that is greater than the input value. O is the number of bits of RI or the number of bits of HARQ-ACK. L is the number of CRC parity bits added to RI or HARQ-ACK. C is the number of code blocks. K _r is the size of the code block r. A plurality of code blocks are provided by dividing one transport block.

M ^{PUSCH-initial} _sc is the bandwidth scheduled for PUSCH initial transmission and is obtained from the initial PDCCH for the same transport block. M ^{PUSCH-initial} _sc may be expressed by the number of subcarriers. N ^{PUSCH-initial} _symbol is the number of SC-FDMA symbols for PUSCH initial transmission for the same transport block. Here, the same transport block is a transport block transmitted on the PUSCH together with the UCI.

β ^RI _offset may be given based at least on some or all of the following elements (1) to (5).
■ Element (1): Whether the serving cell to which PUSCH is transmitted belongs to the UCI cell group ■ Element (2): Whether HARQ-ACK transmission is performed using PUSCH ■ Element (3): HARQ-ACK request field Value ■ Element (4): Number of SC-FDMA symbols for PUSCH ■ Element (5): Column to which encoded modulation symbols of RI are mapped (SC-FDMA symbols to which RI is transmitted)
The β ^RI _offset may be given by information / parameter received from the base station apparatus 3. The terminal apparatus _selects one of a plurality of β ^RI _offsets given by the information / parameter received from the base station apparatus 3 based at least on part or all of the elements (1) to (5). You may choose.

β ^HARQ-ACK _offset may be given by information / parameters received from the base station apparatus 3. β ^HARQ-ACK _offset may be given regardless of the element (1).

Hereinafter, a setting method of transmission power P _{PUSCH, c} (i) for PUSCH transmission in subframe i in serving cell c will be described. The transmission power P _{PUSCH, c} (i) may be given by the following equation (3).

P_CMAX,c(i)は、サービングセルｃにおけるサブフレームｉにおける端末装置１の設定される最大送信電力である。M_PUSCH,c(i)は、サービングセルｃにおけるサブフレームｉに
おけるＰＵＳＣＨリソース割り当ての帯域幅である。当該ＰＵＳＣＨリソース割り当て帯域幅は、リソースブロックの数によって表現される。P_{O_PUSCH,c}(j)は、上位層によって
提供される２つのパラメータに基づいて与えられる。α_cは、上位層によって与えられる
パラメータによって与えられる。PL_cは、端末装置１によって計算される、サービングセ
ルｃのための下りリンクパスロス推定値である。f_c(i)は、ＴＰＣコマンドから導き出さ
れる。ＴＰＣコマンドはサービングセルｃのためのＤＣＩフォーマットに含まれていてもよい。数式（３）におけるΔ_TF,cは、以下の数式（４）によって与えられてもよい。

P _{CMAX, c} (i) is the maximum transmission power set by the terminal device 1 in the subframe i in the serving cell c. M _{PUSCH, c} (i) is the bandwidth of PUSCH resource allocation in subframe i in serving cell c. The PUSCH resource allocation bandwidth is expressed by the number of resource blocks. P _{O_PUSCH, c} (j) is given based on two parameters provided by higher layers. α _c is given by a parameter given by the upper layer. PL _c is a downlink path loss estimation value for the serving cell c calculated by the terminal device 1. f _c (i) is derived from the TPC command. The TPC command may be included in the DCI format for serving cell c. _{ΔTF, c} in Equation (3) may be given by Equation (4) below.

K_sは、上位層によって提供されるパラメータによって与えられる。トランスポートブロックを含まないＰＵＳＣＨを介してＵＣＩが送信される場合、β^PUSCH _offsetはβ^CQI _offsetによって与えられる。β^CQI _offsetは、基地局装置３から受信した情報／パラメータに
よって与えられてもよい。β^CQI _offsetは、上記の要素（１）とは関係なく与えられても
よい。ＰＵＳＣＨを介して少なくともトランスポートブロックが送信される場合、β^PUSCH _offsetはは１である。数式（４）におけるＢＰＲＥは、以下の数式（５）によって与え
られる。

K _s is given by parameters provided by higher layers. When UCI is transmitted via a PUSCH that does not include a transport block, β ^PUSCH _offset is given by β ^CQI _offset . β ^CQI _offset may be given by information / parameters received from the base station apparatus 3. β ^CQI _offset may be given regardless of the element (1). Β ^PUSCH _offset is 1 when at least a transport block is transmitted via PUSCH. BPRE in equation (4) is given by equation (5) below.

O_CQIは、ＣＲＣパリティビットを含むＣＱＩ／ＰＭＩのビット数である。N_REは、リソ
ースエレメントの数である。N_REは、M^{PUSCH-initial} _sc、および、N^{PUSCH-initial} _symbol
の積である。すなわち、ＰＵＳＣＨ送信のための送信電力P_PUSCH,c(i)は、M^{PUSCH-initial} _sc、および、N^{PUSCH-initial} _symbolに基づいて与えられる。

O _CQI is the number of CQI / PMI bits including CRC parity bits. N _RE is the number of resource elements. N _RE is M ^{PUSCH-initial} _sc and N ^{PUSCH-initial} _symbol
Is the product of That is, transmission power P _{PUSCH, c} (i) for PUSCH transmission is given based on M ^{PUSCH-initial} _sc and N ^{PUSCH-initial} _symbol .

FIG. 8 is a diagram illustrating a first example of PUSCH initial transmission and initial PDCCH in the present embodiment. The terminal device 1 receives the PDCCH 800 including the uplink grant that instructs initial transmission. The terminal device 1 performs PUSCH initial transmission 802 including the transport block x based on detection of the PDCCH 800. The terminal device 1 receives the PDCCH 804 including the uplink grant instructing retransmission. Here, the CSI request field included in the uplink grant of PDCCH 804 may be set to trigger CSI reporting. The HARQ-ACK request field included in the uplink grant of PDCCH 804 may be set to trigger HARQ-ACK transmission. The terminal apparatus 1 performs PUSCH retransmission 806 including UCI (CQI / PMI, RI, and / or HARQ-ACK) and the same transport block x based on detection of the PDCCH 804. Here, the PDCCHs 800 and 804 and the PUSCHs 802 and 806 correspond to the same HARQ process.

In FIG. 8, the number Q of coded bits of CQI / PMI, the number G of coded bits of RI, the number H of coded bits of HARQ-ACK, and the transmission power P _{PUSCH, c} for PUSCH retransmission 806 (i) is the bandwidth scheduled for the PUSCH initial transmission 802 and for the PUSCH initial transmission 802 for the M ^{PUSCH-initial} _sc obtained from the initial PDCCH 800 and the same transport block x The number of SC-FDMA symbols is given based at least on the N ^{PUSCH-initial} _symbol .

  FIG. 9 is a diagram illustrating a second example of PUSCH initial transmission and initial PDCCH in the present embodiment. The base station apparatus 3 transmits the PDCCH 900 including an uplink grant that instructs initial transmission. However, the terminal device 1 does not perform the PUSCH transmission 902 corresponding to the PDCCH 900 when the detection of the PDCCH 900 fails. The terminal device 1 receives the PDCCH 904 including an uplink grant that instructs transmission. The terminal device 1 performs PUSCH transmission 906 including the transport block x based on detection of the PDCCH 904. The terminal device 1 receives the PDCCH 908 including the uplink grant that instructs transmission. Here, the CSI request field included in the uplink grant of PDCCH 908 may be set to trigger CSI reporting. The HARQ-ACK request field included in the uplink grant of PDCCH 908 may be set to trigger HARQ-ACK transmission. The terminal device 1 performs PUSCH transmission 910 including UCI (CQI / PMI, RI, and / or HARQ-ACK) and the transport block x based on the detection of the PDCCH 908. Here, PDCCH 900, 904, 908 and PUSCH 902, 906, 910 correspond to the same HARQ process.

In FIG. 9, when PUSCH initial transmission 1002 based on PDCCH 1000 is not performed, the number Q of CQI / PMI encoded bits, the number G of RI encoded bits, the number H of encoded bits of HARQ-ACK, and , The transmission power P _{PUSCH, c} (i) for the PUSCH retransmission 910 is the bandwidth scheduled for the PUSCH transmission 906 and the M ^{PUSCH-initial} _sc obtained from the initial PDCCH 904 and the same transformer The number of SC-FDMA symbols for PUSCH initial transmission 906 for port block x is given based at least on N ^{PUSCH-initial} _symbol .

In FIG. 9, when PUSCH initial transmission 902 based on PDCCH 900 is performed, the number Q of CQI / PMI coded bits, the number G of RI coded bits, the number H of coded bits of HARQ-ACK, and The transmission power P _{PUSCH, c} (i) for PUSCH transmission 910 is
A scheduled bandwidth for PUSCH initial transmission 902, and, M ^{PUSCH-initial} _sc obtained from PDCCH900, and the number of SC-FDMA symbols for PUSCH initial transmission 902 for the same transport block x It may be given based at least on the N ^{PUSCH-initial} _symbol .

  FIG. 9 is a diagram illustrating a second example of PUSCH initial transmission and initial PDCCH in the present embodiment. The terminal device 1 receives the PDCCH 1000 including an uplink grant that instructs initial transmission. However, the terminal device 1 does not perform PUSCH transmission 1002 corresponding to the PDCCH 1000.

For example, in a certain subframe, when a plurality of PUSCHs including PUSCH transmission 1002 are allocated and the sum of the estimated transmission powers of the plurality of PUSCH transmissions exceeds the set maximum transmission power, the terminal device 1 May be set to zero, or the PUSCH transmission 1002 may be dropped. For example, when the result of LBT (Listen Before Talk) corresponding to the PUSCH transmission 1002 is busy, the terminal device 1 may drop the PUSCH transmission 1002.

  The LBT procedure is defined as a mechanism in which the terminal device 1 applies a CCA (Clear Channel Assessment) check before transmission in the serving cell. In order to identify whether the serving cell is in the idle state or the busy state, the terminal device 1 performs power detection or signal detection for determining the presence or absence of other signals in the serving cell. CCA is also called carrier sense. Before the terminal device 1 transmits a physical channel and a physical signal using a serving cell (component carrier, channel, medium, frequency), interference power (interference signal, received power, received signal, noise power, noise signal) in the serving cell. Measure (detect). Based on the measurement (detection), the terminal device 1 identifies (detects, assumes, determines) whether the serving cell is in an idle state or a busy state. When the terminal device 1 identifies that the serving cell is in an idle state based on the measurement (detection), the radio transmission / reception device can transmit a physical channel and a physical signal in the serving cell. When the serving cell is identified based on the terminal device 1 as being busy, the wireless transmission / reception device does not transmit a physical channel and a physical signal in the serving cell.

  The drop process of the PUSCH transmission 1002 may be performed by the wireless transmission / reception unit 10. When the PUSCH transmission 1002 is dropped by the radio transmission / reception unit 10, the upper layer processing unit 14 may consider that the PUSCH transmission 1002 has been executed. For example, the upper layer processing unit 14 may generate a transport block x for the PUSCH transmission 1002. For example, the uplink grant included in the PDCCH 1000 may be held, and the radio transmission / reception unit 10 may be instructed to retransmit the transport block x based on the held uplink grant.

  The terminal device 1 receives the PDCCH 1004 including the uplink grant instructing retransmission. The terminal device 1 performs PUSCH transmission 1006 including the transport block x based on detection of the PDCCH 1004.

  The terminal device 1 receives the PDCCH 1008 including the uplink grant instructing retransmission. Here, the CSI request field included in the uplink grant of PDCCH 1008 may be set to trigger CSI reporting. The HARQ-ACK request field included in the uplink grant of PDCCH 1008 may be set to trigger HARQ-ACK transmission. The terminal device 1 performs PUSCH transmission 1010 including UCI (CQI / PMI, RI, and / or HARQ-ACK) and the transport block x based on detection of the PDCCH 1008. Here, PDCCH 1000, 1004, 1008 and PUSCH 1002, 1006, 1010 correspond to the same HARQ process.

In FIG. 10, the number Q of coded bits for CQI / PMI, the number G of coded bits for RI, the number H of coded bits for HARQ-ACK, and the transmission power P _{PUSCH, c} for PUSCH retransmission 1010 (i) is the bandwidth scheduled for the PUSCH initial transmission 1002, and the M ^{PUSCH-initial} _sc obtained from the PDCCH 1000 and the SC for the PUSCH initial transmission 1002 for the same transport block x The number of FDMA symbols may be given based at least on the N ^{PUSCH-initial} _symbol .

However, in the base station apparatus 3, the reason that the PUSCH initial transmission 1002 is not performed is that (i) the terminal apparatus 1 has failed to detect the initial PDCCH 1000, or (ii)
Either because the result of LBT is busy or because (iii) the sum of the estimated transmission powers of a plurality of PUSCH transmissions including PUSCH transmission 1002 exceeds the set maximum transmission power I can't know if it exists. Therefore, due to the reason that PUSCH initial transmission 1002 was not performed, the number Q of CQI / PMI coded bits, the number G of RI coded bits, the number H of coded bits of HARQ-ACK, and the PUSCH transmission 1006 It is not preferable that the transmission power P _{PUSCH, c} (i) for fluctuates. Therefore, in FIG. 10, even if the detection of the PDCCH 1000 is completed successfully, if the PUSCH initial transmission 1002 based on the PDCCH 1000 is not performed, the number of encoded bits Q of CQI / PMI, the encoded bits of RI , The number of coded bits of HARQ-ACK H, and the transmission power P _{PUSCH, c} (i) for PUSCH transmission 1010 are the PUSCH retransmissions 10
M ^{PUSCH-initial} _sc which is the bandwidth scheduled for 06 and obtained from PDCCH 1004, and the number of SC-FDMA symbols N ^PUSCH- for PUSCH retransmission 1006 for the same transport block x ^It may be given based at least on the ^initial _symbol . Thereby, the base station apparatus 3 can correctly receive the PUSCH retransmission 1006 (UCI and transport block) without knowing the reason why the terminal apparatus 1 did not perform the PUSCH initial transmission 1002.

In FIG. 10, when PUSCH initial transmission 1002 based on PDCCH 1000 is performed, the number Q of CQI / PMI coded bits, the number G of RI coded bits, the number H of coded bits of HARQ-ACK, and The transmit power P _{PUSCH, c} (i) for PUSCH transmission 1010 is the bandwidth scheduled for PUSCH initial transmission 1002, and
M ^{PUSCH-initial} _sc obtained from PDCCH 1000 and the number of SC-FDMA symbols N ^{PUSCH-initial} _symbol for PUSCH initial transmission 1002 for the same transport block x may be provided.

  Hereinafter, various aspects of the terminal device 1 and the base station device 3 in the present embodiment will be described.

(1) A first aspect of the present embodiment is a terminal device 1, which is a first PDCCH (900, 1000) including a first uplink grant, and a second PDCCH including a second uplink grant. (904, 1004) and the reception unit 10 that receives the third PDCCH (908, 1008) including the third uplink grant, and the detection of the first PDCCH (900, 1000), 1st PUSCH transmission (902, 1002) including 1 transport block is performed, and 2nd PUSCH transmission including the 1st transport block based on detection of the 2nd PDCCH (904, 1004) (906, 1006), and based on the detection of the third PDCCH (908, 1008), the uplink control information, and the first A transmission unit 10 for performing third PUSCH transmission (910, 1010) including a transport block, and including the first transport block based on detection of the first PDCCH (900, 1000). When one PUSCH transmission (902, 1002) is performed, the number of encoded bits of the uplink control information included in the third PUSCH transmission (910, 1010) is the first PDCCH (900, 1000). the first M ^{PUSCH-initial} _sc obtained from), and the first of the first PUSCH (902,1002 for transport block) the first number N ^PUSCH SC-FDMA symbol for transmission the first transformer based on the detection of the first PDCCH (900, 1000), given at least based on a ^-initial _symbol When the first PUSCH transmission (902, 1002) including the port block is dropped, the number of coded bits of the uplink control information is the second obtained from the second PDCCH (904, 1004). M ^{PUSCH-initial} _sc and based at least on a second number N ^{PUSCH-initial} _symbol of SC-FDMA symbols for the second PUSCH transmission (906, 1006) for the first transport block Given.

(2) The second aspect of the present embodiment is the base station apparatus 3, which includes the first PDCCH (900, 1000) including the first uplink grant, the second including the second uplink grant. Based on detection of the PDCCH (904, 1004) and the third PDCCH (908, 1008) including the third uplink grant, and the detection of the first PDCCH (900, 1000), The first PUSCH (902, 1002) including the first transport block is received, and the second PUSCH (904, 1004) including the first transport block is detected based on the detection of the second PDCCH (904, 1004). PUSCH (906, 1006) is received, and based on detection of the third PDCCH (908, 1008), uplink control information, and Receiving unit 30 that receives the third PUSCH (910, 1010) including one transport block, and the first transport block based on detection of the first PDCCH (900, 1000). When the included first PUSCH transmission (902, 1002) is performed, the number of encoded bits of the uplink control information included in the third PUSCH transmission (910, 1010) is the first PDCCH ( the first M ^{PUSCH-initial} _sc obtained from 900, 1000), and the first SC-FDMA symbol for the first PUSCH (902,1002) transmission for the first transport block Given at least based on the number N ^{PUSCH-initial} _symbol and based on detection of the first PDCCH (900, 1000) When the first PUSCH transmission (902, 1002) including a transport block is dropped, the number of coded bits of the uplink control information is the second obtained from the second PDCCH (904, 1004). M ^{PUSCH-initial} _sc and a second number of SC-FDMA symbols N ^{PUSCH-initial} _symbol for the second PUSCH transmission (906, 1006) for the first transport block Given.

(3) A third aspect of the present embodiment is the terminal device 1, which is a first PDCCH (900, 1000) including a first uplink grant, and a second PDCCH including a second uplink grant. (904, 1004) and the reception unit 10 that receives the third PDCCH (908, 1008) including the third uplink grant, and the detection of the first PDCCH (900, 1000), 1st PUSCH transmission (902, 1002) including 1 transport block is performed, and 2nd PUSCH transmission including the 1st transport block based on detection of the 2nd PDCCH (904, 1004) (906, 1006), and based on the detection of the third PDCCH (908, 1008), the uplink control information, and the first A transmission unit 10 for performing third PUSCH transmission (910, 1010) including a transport block, and including the first transport block based on detection of the first PDCCH (900, 1000). When one PUSCH transmission (902, 1002) is performed, the transmission power for the third PUSCH transmission is the first M ^{PUSCH-initial} _sc obtained from the first PDCCH (900, 1000), and , Given based at least on a first number N ^{PUSCH-initial} _symbol of SC-FDMA symbols for transmission of the first PUSCH (902, 1002) for the first transport block, The first PUSCH transmission (902, including the first transport block based on detection of PDCCH (900, 1000) 1002) is dropped, the transmission power for the third PUSCH transmission is the second M ^{PUSCH-initial} _sc obtained from the second PDCCH (904, 1004) and the first transformer. Is provided based at least on a second number N ^{PUSCH-initial} _symbol of SC-FDMA symbols for the second PUSCH transmission (906, 1006) for a port block.

(4) The fourth aspect of the present embodiment is the base station apparatus 3, which includes the first PDCCH (900, 1000) including the first uplink grant, and the second including the second uplink grant. A transmitting unit 30 that transmits a PDCCH (904, 1004) and a third PDCCH (908, 1008) including a third uplink grant; and the first PDCCH (900,
1000) based on the detection of the first PUSCH (902, 1002) including the first transport block, and based on the detection of the second PDCCH (904, 1004) The second PUSCH (906, 1006) including the transport block is received, and based on the detection of the third PDCCH (908, 1008), the uplink control information and the first transport block are received. Receiving unit 30 for receiving the third PUSCH (910, 1010) including the first PUSCH including the first transport block based on detection of the first PDCCH (900, 1000) When transmission (902, 1002) is performed, the transmission power for the third PUSCH transmission is the first PDCC. First M obtained from (900,1000) ^{PUSCH-initial} _sc, and the first SC-FDMA symbol for the first PUSCH (902,1002) transmission for the first transport block At least on the basis of given, the first PUSCH transmission (902,1002) drop comprising said first transport block based on the detection of the first PDCCH (900, 1000) to the number N ^{PUSCH-initial} _symbol of If so, the transmission power for the third PUSCH transmission is for the second M ^{PUSCH-initial} _sc obtained from the second PDCCH (904, 1004) and for the first transport block. At least based on SC-FDMA second number N ^{PUSCH-initial} _symbol of the symbol for the second PUSCH transmission (906,1006) I have given in.

  (5) In the first to fourth aspects of the present embodiment, the first uplink grant instructs initial transmission, and the second uplink grant and the third uplink grant are retransmitted. Instruct.

  (6) In the first to fourth aspects of the present embodiment, the subframe in which the second PDCCH is transmitted is a subframe subsequent to the subframe in which the first PDCCH is transmitted. The subframe in which the third PDCCH is transmitted is a subframe subsequent to the subframe in which the second PDCCH is transmitted.

  (7) In the first to fourth aspects of the present embodiment, the subframe in which the second PUSCH transmission is scheduled is a subframe after the subframe in which the first PUSCH transmission is scheduled. . The subframe in which the third PUSCH transmission is scheduled is a subframe after the subframe in which the second PUSCH transmission is scheduled.

  (8) In the first to fourth aspects of the present embodiment, the first PUSCH transmission including the first transport block based on the detection of the first PDCCH is based on LBT (Listen Before Talk). Dropped.

  (9) In the first to fourth aspects of the present embodiment, the first PUSCH transmission including the first transport block based on the detection of the first PDCCH is performed in the first PUSCH transmission in a certain subframe. It is dropped based on the sum of the estimated transmission powers of a plurality of PUSCHs including PUSCH transmissions exceeding the set maximum transmission power.

  Thereby, the terminal device 1 can perform uplink transmission efficiently. In addition, the base station apparatus 3 can efficiently perform reception of uplink transmission.

A program that operates in the base station device 3 and the terminal device 1 related to the present invention is a program that controls a CPU (Central Processing Unit) or the like (a computer is caused to function) so as to realize the functions of the above-described embodiments related to the present invention. Program). Information handled by these devices is temporarily stored in RAM (Random Access Memory) during the processing.
After that, various ROMs such as Flash ROM (Read Only Memory) and HD
The data is stored in D (Hard Disk Drive), read by the CPU as necessary, and corrected and written.

  Note that the terminal device 1 and a part of the base station device 3 in the above-described embodiment may be realized by a computer. In that case, the program for realizing the control function may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read by the computer system and executed.

  Here, the “computer system” is a computer system built in the terminal device 1 or the base station device 3 and includes an OS and hardware such as peripheral devices. The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system.

  Furthermore, the “computer-readable recording medium” is a medium that dynamically holds a program for a short time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line, In such a case, a volatile memory inside a computer system serving as a server or a client may be included and a program that holds a program for a certain period of time. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

  In addition, the base station device 3 in the above-described embodiment can also be realized as an aggregate (device group) composed of a plurality of devices. Each of the devices constituting the device group may include a part or all of each function or each functional block of the base station device 3 according to the above-described embodiment. The device group only needs to have one function or each function block of the base station device 3. The terminal device 1 according to the above-described embodiment can also communicate with the base station device as an aggregate.

  Further, the base station apparatus 3 in the above-described embodiment may be an EUTRAN (Evolved Universal Terrestrial Radio Access Network). Further, the base station apparatus 3 in the above-described embodiment may have a part or all of the functions of the upper node for the eNodeB.

  In addition, part or all of the terminal device 1 and the base station device 3 in the above-described embodiment may be realized as an LSI that is typically an integrated circuit, or may be realized as a chip set. Each functional block of the terminal device 1 and the base station device 3 may be individually chipped, or a part or all of them may be integrated into a chip. Further, the method of circuit integration is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. In addition, when an integrated circuit technology that replaces LSI appears due to progress in semiconductor technology, an integrated circuit based on the technology can also be used.

  In the above-described embodiment, the terminal device is described as an example of the communication device. However, the present invention is not limited to this, and the stationary or non-movable electronic device installed indoors or outdoors, For example, the present invention can also be applied to terminal devices or communication devices such as AV equipment, kitchen equipment, cleaning / washing equipment, air conditioning equipment, office equipment, vending machines, and other daily life equipment.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes design changes and the like without departing from the gist of the present invention. The present invention can be modified in various ways within the scope of the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments are also included in the technical scope of the present invention. It is. Moreover, it is the element described in each said embodiment, and the structure which substituted the element which has the same effect is also contained.

1 (1A, 1B, 1C) Terminal device 3 Base station device 10 Wireless transmission / reception unit 11 Antenna unit 12 RF unit 13 Baseband unit 14 Upper layer processing unit 15 Medium access control layer processing unit 16 Radio resource control layer processing unit 30 Wireless transmission / reception Unit 31 antenna unit 32 RF unit 33 baseband unit 34 upper layer processing unit 35 medium access control layer processing unit 36 radio resource control layer processing unit

Claims (9)

A receiving unit for receiving a first PDCCH including a first uplink grant, a second PDCCH including a second uplink grant, and a third PDCCH including a third uplink grant;
Based on detection of the first PDCCH, performs a first PUSCH transmission including a first transport block;
Based on the detection of the second PDCCH, performs a second PUSCH transmission including the first transport block;
Based on detection of the third PDCCH, uplink control information, and a transmission unit that performs third PUSCH transmission including the first transport block, and
When the first PUSCH transmission including the first transport block based on detection of the first PDCCH is performed, the number of encoded bits of the uplink control information included in the third PUSCH transmission is , A first M ^{PUSCH-initial} _sc obtained from the first PDCCH, and a first number N ^PUSCH of SC-FDMA symbols for the first PUSCH transmission for the first transport block given based at least on the ^-initial _symbol ,
When the first PUSCH transmission including the first transport block based on detection of the first PDCCH is dropped, the number of coded bits of the uplink control information is obtained from the second PDCCH. ^{Provided based} on at least a second M ^{PUSCH-initial} _sc and a second number N ^{PUSCH-initial} _symbol of SC-FDMA symbols for the second PUSCH transmission for the first transport block Terminal equipment. The first uplink grant indicates initial transmission;
The terminal apparatus according to claim 1, wherein the second uplink grant and the third uplink grant instruct re-transmission. The terminal apparatus according to claim 1, wherein the first PUSCH transmission including the first transport block based on detection of the first PDCCH is dropped based on LBT (Listen Before Talk). The first PUSCH transmission including the first transport block based on detection of the first PDCCH has a sum of estimated transmission powers of a plurality of PUSCHs including the first PUSCH transmission in a certain subframe. The terminal device according to claim 1, wherein the terminal device is dropped based on exceeding a set maximum transmission power. A receiving unit for receiving a first PDCCH including a first uplink grant, a second PDCCH including a second uplink grant, and a third PDCCH including a third uplink grant;
Based on the first PDCCH, receive a first PUSCH including a first transport block;
Based on the second PDCCH, receive the second PUSCH including the first transport block;
A receiving unit configured to receive uplink control information and a third PUSCH including the first transport block based on the third PDCCH;
When the first PUSCH transmission including the first transport block based on the first PDCCH is performed, the number of encoded bits of the uplink control information included in the third PUSCH transmission is A first M ^{PUSCH-initial} _sc obtained from a first PDCCH, and a first number N ^{PUSCH-initial} of SC-FDMA symbols for the first PUSCH transmission for the first transport block given at least based on _symbol ,
When the first PUSCH transmission including the first transport block based on detection of the first PDCCH is dropped, the number of coded bits of the uplink control information is obtained from the second PDCCH. ^{Provided based} on at least a second M ^{PUSCH-initial} _sc and a second number N ^{PUSCH-initial} _symbol of SC-FDMA symbols for the second PUSCH transmission for the first transport block Base station equipment. A communication method used for a terminal device,
Receiving a first PDCCH including a first uplink grant, a second PDCCH including a second uplink grant, and a third PDCCH including a third uplink grant;
Based on detection of the first PDCCH, performs a first PUSCH transmission including a first transport block;
Based on the detection of the second PDCCH, performs a second PUSCH transmission including the first transport block;
Based on the detection of the third PDCCH, uplink control information and a third PUSCH transmission including the first transport block is performed,
When the first PUSCH transmission including the first transport block based on detection of the first PDCCH is performed, the number of encoded bits of the uplink control information included in the third PUSCH transmission is , A first M ^{PUSCH-initial} _sc obtained from the first PDCCH, and a first number N ^PUSCH of SC-FDMA symbols for the first PUSCH transmission for the first transport block given based at least on the ^-initial _symbol ,
When the first PUSCH transmission including the first transport block based on detection of the first PDCCH is dropped, the number of coded bits of the uplink control information is obtained from the second PDCCH. ^{Provided based} on at least a second M ^{PUSCH-initial} _sc and a second number N ^{PUSCH-initial} _symbol of SC-FDMA symbols for the second PUSCH transmission for the first transport block Communication method. A communication method used in a base station device,
Receiving a first PDCCH including a first uplink grant, a second PDCCH including a second uplink grant, and a third PDCCH including a third uplink grant;
Based on the first PDCCH, receive a first PUSCH including a first transport block;
Based on the second PDCCH, receive the second PUSCH including the first transport block;
Based on the third PDCCH, receive uplink control information and the third PUSCH including the first transport block,
When the first PUSCH transmission including the first transport block based on the first PDCCH is performed, the number of encoded bits of the uplink control information included in the third PUSCH transmission is A first M ^{PUSCH-initial} _sc obtained from a first PDCCH, and a first number N ^{PUSCH-initial} of SC-FDMA symbols for the first PUSCH transmission for the first transport block given at least based on _symbol ,
When the first PUSCH transmission including the first transport block based on detection of the first PDCCH is dropped, the number of coded bits of the uplink control information is obtained from the second PDCCH. And a second number of SC-FDMA symbols N ^{PUSCH-initial} _symbol for the second PUSCH transmission for the first transport block and at least a second MPUSCH-initialsc Method. An integrated circuit mounted on a terminal device,
A receiving circuit for receiving a first PDCCH including a first uplink grant, a second PDCCH including a second uplink grant, and a third PDCCH including a third uplink grant;
Based on detection of the first PDCCH, performs a first PUSCH transmission including a first transport block;
Based on the detection of the second PDCCH, performs a second PUSCH transmission including the first transport block;
A transmission circuit that performs third PUSCH transmission including uplink control information and the first transport block based on detection of the third PDCCH;
When the first PUSCH transmission including the first transport block based on detection of the first PDCCH is performed, the number of encoded bits of the uplink control information included in the third PUSCH transmission is , A first M ^{PUSCH-initial} _sc obtained from the first PDCCH, and a first number N ^PUSCH of SC-FDMA symbols for the first PUSCH transmission for the first transport block given based at least on the ^-initial _symbol ,
When the first PUSCH transmission including the first transport block based on detection of the first PDCCH is dropped, the number of coded bits of the uplink control information is obtained from the second PDCCH. ^{Provided based} on at least a second M ^{PUSCH-initial} _sc and a second number N ^{PUSCH-initial} _symbol of SC-FDMA symbols for the second PUSCH transmission for the first transport block Integrated circuit. An integrated circuit mounted on a base station device,
A receiving circuit for receiving a first PDCCH including a first uplink grant, a second PDCCH including a second uplink grant, and a third PDCCH including a third uplink grant;
Based on the first PDCCH, receive a first PUSCH including a first transport block;
Based on the second PDCCH, receive the second PUSCH including the first transport block;
A reception circuit configured to receive uplink control information and a third PUSCH including the first transport block based on the third PDCCH;
When the first PUSCH transmission including the first transport block based on the first PDCCH is performed, the number of encoded bits of the uplink control information included in the third PUSCH transmission is A first M ^{PUSCH-initial} _sc obtained from a first PDCCH, and a first number N ^{PUSCH-initial} of SC-FDMA symbols for the first PUSCH transmission for the first transport block given at least based on _symbol ,
When the first PUSCH transmission including the first transport block based on detection of the first PDCCH is dropped, the number of coded bits of the uplink control information is obtained from the second PDCCH. ^{Provided based} on at least a second M ^{PUSCH-initial} _sc and a second number N ^{PUSCH-initial} _symbol of SC-FDMA symbols for the second PUSCH transmission for the first transport block Integrated circuit.

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