JP2018196077A - TERMINAL DEVICE, BASE STATION DEVICE, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT - Google Patents

Abstract

To provide a method and a device that efficiently transmit uplink control information.SOLUTION: A terminal device receives first data and second data in sTTI in a primary cell, and selects either of a first transmission method or a second transmission method as a transmission method on the basis of a parameter value for a secondary cell to transmit first HARQ-ACK using the selected transmission method, when HARQ-ACK and SR are transmitted in second sTTI. The first HARQ-ACK includes the HARQ-ACK for each of the primary cell and the secondary cell for the first transmission method, and the first HARQ-ACK includes the HARQ-ACK for each of the first data and the second data for the second transmission method. A parameter for the secondary cell is the parameter for identifying mapping of sPDSCH to a resource element.SELECTED DRAWING: Figure 12

Description

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

Wireless access method and wireless network for cellular mobile communications (hereinafter referred to as “Long Term Evolution (LTE)” or “Evolved Universal Terrestrial Radio Access: EUTRA”
". ) Is being considered in the 3rd Generation Partnership Project (3GPP). In LTE, a base station apparatus is also called eNodeB (evolved NodeB) and a terminal apparatus is 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, it is specified that uplink control information is transmitted on PUSCH and PUCCH (Non-Patent Documents 1, 2, 3, and 4). Non-Patent Document 5 discusses reduction of TTI (Transmission Time Interval) and reduction of processing time. Non-Patent Document 6 discusses that sPUCCH and sPUSCH transmit channel state information and HARQ-ACK (Hybrid Automatic Repeat reQuest-ACKnowledgement).

"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. "3GPP TS 36.300 V13.2.0 (2015-12)", 13th January, 2015. "New SI proposal: Study on Latency reduction techniques for LTE", RP-150465, Ericsson, Huawei, 3GPP TSG RAN Meeting # 67, Shanghai, China, 9th-12th March 2015. "Physical layer aspects for PUSCH for short TTI", R1-163320, Ericsson, 3GPP TSG RAN WG1 Meeting # 84 bis, Busan, 11th-15th April 2016.

  The present invention relates to a terminal device capable of efficiently transmitting uplink control information, a communication method used for the terminal device, an integrated circuit mounted on the terminal device, and efficiently receiving uplink control information. A base station apparatus capable of performing communication, a communication method used for the base station apparatus, and an integrated circuit mounted on the base station apparatus.

(1) The aspect of this invention took the following means. That is, the first aspect of the present invention is a terminal apparatus that communicates with a base station apparatus using two serving cells including one primary cell and one secondary cell, and includes a transport block. The first transport block and the second transport block are received in the earliest sTTI in the subframe in the primary cell, the scheduling request is a positive scheduling request, and When HARQ-ACK and the scheduling request are transmitted in 2 sTTIs, one of the first transmission method and the second transmission method is selected as the transmission method based on the value of the parameter l _DataStart for the secondary cell. , Using the selected transmission method And a transmission unit for transmitting the first HARQ-ACK in the first sPUCCH resources for serial scheduling request, the parameter l _Dat for the secondary cell
_aStart is a parameter for specifying mapping of PDSCH or sPDSCH to a resource element, and for the first transmission method, the first HARQ-ACK is a second HARQ-ACK for the primary cell. And the third HARQ-ACK for the secondary cell, and for the second transmission method, the first HARQ-ACK includes the fourth HARQ-ACK and the second HARQ-ACK for the first transport block. 5th HARQ-ACK for 2 transport blocks, and the second HARQ-ACK for the primary cell spatially bundles the 4th HARQ-ACK and the 5th HARQ-ACK. Generated by.

(2) A second aspect of the present invention is a base station apparatus that communicates with a terminal apparatus using two serving cells including one primary cell and one secondary cell, and includes a transformer When the first transport block and the second transport block are transmitted in the earliest sTTI in the subframe in the primary cell and the transmission unit that transmits the port block, the first for the scheduling request in the second sTTI Receiving a first HARQ-ACK in one sPUCCH resource, and when the parameter l _DataStart for the secondary cell is a predetermined value, the first HARQ-ACK is for the primary cell The second HARQ-ACK and the secondary cell Includes a third HARQ-ACK for, if the parameter l _datastart for the secondary cell is not a predetermined value, the first HARQ-ACK includes a fourth HARQ-ACK for the first transport block A fifth HARQ-ACK for the second transport block, and the second HARQ-ACK for the primary cell includes the fourth HARQ-ACK and the fifth HARQ-ACK by the terminal device. The parameter l _DataStart for the secondary cell generated by _{spatially bundling} is a parameter for specifying the mapping of PDSCH or sPDSCH to resource elements.

(3) A third aspect of the present invention is a communication method used for a terminal apparatus that communicates with a base station apparatus using two serving cells including one primary cell and one secondary cell, and includes a transport block , The first transport block and the second transport block are received in the earliest sTTI in the subframe in the primary cell, the scheduling request is a positive scheduling request, and the second sTTI When the HARQ-ACK and the scheduling request are transmitted in FIG. 2, the first transmission method and the second transmission method are selected as the transmission method based on the value of the parameter l _DataStart for the secondary cell, and the selection is performed. The scheduled transmission method using Transmitting a first HARQ-ACK in the first sPUCCH resources for the ring request, the parameter l _Da for the secondary cell
_taStart is a parameter for specifying the mapping of the PDSCH or sPDSCH to the resource element, and for the first transmission method, the first HARQ-ACK is a second HARQ-ACK for the primary cell. And the third HARQ-ACK for the secondary cell, and for the second transmission method, the first HARQ-ACK includes the fourth HARQ-ACK and the second HARQ-ACK for the first transport block. 5th HARQ-ACK for 2 transport blocks, and the second HARQ-ACK for the primary cell spatially bundles the 4th HARQ-ACK and the 5th HARQ-ACK. Generated by.

(4) A fourth aspect of the present invention is a communication method used in a base station apparatus that communicates with a terminal apparatus using two serving cells including one primary cell and one secondary cell, and includes a transport block In the first sPUCCH resource for the scheduling request in the second sTTI, the first transport block and the second transport block are transmitted in the earliest sTTI in the subframe in the primary cell. When the first HARQ-ACK is received, and the parameter l _DataStart for the secondary cell is a predetermined value, the first HARQ-ACK is the second HARQ-ACK for the primary cell and the secondary cell. Third HARQ-A Includes K, parameters l _D for the secondary cell
_{If dataStart} is not the predetermined value, the first HARQ-ACK includes a fourth HARQ-ACK for the first transport block and a fifth HARQ-ACK for the second transport block. The second HARQ-ACK for the primary cell is generated by spatially bundling the fourth HARQ-ACK and the fifth HARQ-ACK by the terminal device, and the parameter for the secondary cell l _DataStart is a parameter for specifying the mapping of PDSCH or sPDSCH to resource elements.

  According to the present invention, the terminal device can efficiently transmit uplink control information. Moreover, the base station apparatus can receive uplink control information efficiently.

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 figure which shows an example of the sub-frame and sTTI in the uplink of this embodiment. It is a figure which shows an example of the sub-frame and sTTI in the downlink of this embodiment. It is a figure which shows an example of the transmission timing of HARQ-ACK in this embodiment. It is a figure which shows an example of a response | compatibility of HARQ-ACK (j) and a transport block in this embodiment. It is a flowchart for selecting the transmission method of HARQ-ACK and / or a scheduling request in sTTI611 of this embodiment. It is a figure which shows an example of a response _| compatibility of HARQ-ACK (j) and sPUCCH resource n ⁽¹⁾ _sPUCCH and b (0) b (1) in this embodiment. It is a figure which shows an example of the operation | movement regarding the rule (2) in the 1st transmission method in this embodiment. It is a figure which shows an example of the operation | movement regarding the 2nd transmission method in this embodiment. It is a schematic block diagram which shows the structure of the terminal device 1 in this invention. It is a schematic block diagram which shows the structure of the base station apparatus 3 in this invention.

  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 two serving cells. In the present embodiment, FDD (Frequency Division Duplex) for each of the two serving cells.
Applies. A technique in which the terminal device 1 communicates via a plurality of serving cells is referred to as cell aggregation or carrier aggregation. Two serving cells include one primary cell. The two serving cells include one 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. A secondary cell may be set at the time when an RRC (Radio Resource Control) connection is established or later.

  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.
-PUCCH (Physical Uplink Control Channel)
・ SPUCCH (shortened Physical Uplink Control Channel)
・ PUSCH (Physical Uplink Shared Channel)
・ SPUSCH (shortened Physical Uplink Shared Channel)

PUCCH and sPUCCH are used for transmitting uplink control information (UPCI). One PUCCH is transmitted in one subframe. One sPUCCH is transmitted in one sTTI. In this embodiment, the terminal device 1 may transmit PUCCH only in the primary cell.

Uplink control information is downlink channel state information (Channel State Information:
CSI), scheduling request (SR) indicating PUSCH resource request, downlink data (Transport block, Medium Access Control Protocol Data Unit: MAC PDU, Downlink-Shared Channel: DL-SCH, Physical Downlink Shared Channel: PDSCH HARQ-ACK (Hybrid Automatic Repeat request ACKnowledgement)
)including. HARQ-ACK indicates ACK (acknowledgement) or NACK (negative-acknowledgement).

HARQ-ACK is also referred to as ACK / NACK, HARQ feedback, HARQ-ACK feedback, HARQ response, HARQ-ACK response, HARQ information, HARQ-ACK information, HARQ control information, and HARQ-ACK control information. When the downlink data is successfully decoded, an ACK for the downlink data is generated. If the downlink data is not successfully decoded, a NACK for the downlink data is generated. DTX (discontinuous transmission) may mean that downlink data was not detected. DTX (discontinuous transmission) may mean that data for transmitting a HARQ-ACK response was not detected.

A scheduling request is a positive scheduling request.
) Or negative scheduling request. A positive scheduling request indicates requesting UL-SCH resources for initial transmission. A negative scheduling request indicates that no UL-SCH resource is required for initial transmission. The terminal device 1 may determine whether to transmit a positive scheduling request. That the scheduling request is a negative scheduling request may mean that the terminal device 1 has determined not to transmit a positive scheduling request.

  sPUCCH format 1 is used to transmit a positive scheduling request. sPUCCH format 1 is not used to transmit negative scheduling requests. The sPUCCH format 1a is used for transmitting 1-bit HARQ-ACK. The sPUCCH format 1b is used for transmitting a 2-bit HARQ-ACK. The sPUCCH format 1b with channel selection is used to transmit HARQ-ACK up to 4 bits when more than one serving cell is set in the terminal device. In this embodiment, the terminal apparatus 1 in which two serving cells are set transmits only HARQ-ACK using the sPUCCH format 1b with channel selection.

PUSCH and sPUSCH may be used to transmit uplink data (Transport block, Medium Access Control Protocol Data Unit: MAC PDU, Uplink-Shared Channel: UL-SCH). The PUSCH may be used to transmit HARQ-ACK and / or channel state information along with uplink data. Moreover, PUSCH may be used to transmit only channel state information, or only HARQ-ACK and channel state information.

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.
・ PCFICH (Physical Control Format Indicator Channel)
・ PDCCH (Physical Downlink Control Channel)
・ EPDCCH (Enhanced Physical Downlink Control Channel)
・ SPDCCH (shortened Physical Downlink Control Channel)
・ PDSCH (Physical Downlink Shared Channel)
・ SPDSCH (shortened Physical Downlink Shared Channel)

  PCFICH is used to transmit CFI (Control Format Indicator). The CFI is information on a region (OFDM symbol) used for PDCCH transmission and / or a region (OFDM symbol) used for PDSCH transmission.

PDCCH, EPDCCH, and sPDCCH are downlink control information (Downlink
Used to transmit Control Information (DCI). Downlink control information is D
Also called CI format. The downlink control information includes a downlink grant (downlink grant) and an uplink grant (uplink grant). The downlink grant is also referred to as downlink assignment or downlink allocation.

  One downlink grant may be used for scheduling one PDSCH in one cell. The downlink grant may be used for scheduling the PDSCH in the same subframe as the subframe in which the downlink grant is transmitted. One downlink grant may be used for scheduling one sPDSCH in one cell. The downlink grant may be used for scheduling sPDSCH within the same sTTI as the sTTI (shortened Transmission Time Interval) in which the downlink grant is transmitted.

  One uplink grant may be used for scheduling one PUSCH in one cell. The uplink grant may be used for scheduling one PUSCH in a subframe four or more times after the subframe in which the uplink grant is transmitted. One uplink grant may be used for scheduling one sPUSCH in one cell. The uplink grant may be used for scheduling one sPUSCH in the sTTI after the sTTI in which the uplink grant is transmitted.

PDSCH and sPDSCH are downlink data (Downlink Shared Channel:
DL-SCH).

UL-SCH and DL-SCH are transport channels. 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).
In the MAC layer, HARQ (Hybrid Automatic Repeat reQuest) control is performed for each transport block. The transport block is a unit of data that the MAC layer delivers to the physical layer. In the physical layer, transport blocks are mapped to code words, and modulation processing and encoding processing are performed for each code word. One codeword is mapped to one or more layers.

Hereinafter, an example of the configuration of a radio frame according to the present embodiment will be described. FIG. 2 is a diagram illustrating a schematic configuration of a radio frame according to the present embodiment. Each radio frame is 10 ms long. In FIG. 2, the horizontal axis is a time axis. 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. That is, 10 subframes can be used in each 10 ms interval. The subframe is TTI (also referred to as Transmission Time 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. In this embodiment, the CP length is a normal CP for the uplink and the downlink.

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. The subcarrier spacing Δf may be different for each channel and / or for each TTI / sTTI.

A resource block is used to represent a mapping of physical channels to resource elements. As resource blocks, virtual resource blocks and physical resource blocks 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. Physical resource blocks are numbered (0, 1,..., N ^UL _RB −1) in order from the lowest frequency in the frequency domain.

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 as the uplink slot except that the resource grid is defined by a plurality of subcarriers and a plurality of OFDM symbols. Description of is omitted.

FIG. 4 is a diagram illustrating an example of subframes and sTTIs in the uplink according to the present embodiment. In FIG. 4, the subframe may be composed of 2 × N ^UL _symb SC-FDMA symbols. In FIG. 4, the number of SC-FDMA symbols constituting the sTTI is 2 or 3. In FIG. 4, one subframe in the uplink includes first to sixth sTTIs. A TTI / sTTI composed of X SC-FDMA symbols is also referred to as an X symbol TTI.

FIG. 5 is a diagram illustrating an example of subframes and sTTIs in the downlink according to the present embodiment. In FIG. 5, the subframe may be composed of 2 × N ^DL _symb OFDM symbols. N ^DL _symb indicates the number of OFDM symbols included in one downlink slot. In FIG. 5, N ^DL _symb is 7. In FIG. 5, the number of OFDM symbols constituting the sTTI is 2 or 3. In FIG. 5, one subframe in the downlink includes first to sixth sTTIs.

The boundary of sTTI in the downlink of the serving cell is given based on the parameter l _DataStart for the serving cell and subframe. The parameter l _DataStart for the serving cell (primary cell, secondary cell) and subframe may be provided based on the CFI received in the subframe of the serving cell (primary cell, secondary cell). The parameter l _DataStart for the serving cell and subframe may be set to the value of the CFI received in the subframe of the serving cell. The base station apparatus 3 transmits CFI for the serving cell using PCFICH in the serving cell. Here, the parameter l _DataStart for the secondary cell may be given based on a parameter of an RRC (Radio Resource Control) layer. The base station device 3 may transmit information including the parameters of the RRC layer to the terminal device 1.

The resource element to which the PDSCH and sPDSCH are mapped may be given based on the parameter l _DataStart . That is, the parameter l _DataStart may be a parameter for determining a resource element to which the PDSCH and sPDSCH are mapped. The parameter l _DataStart may be a parameter for determining a resource element to which the PDSCH is mapped in the subframe. The parameter l _DataStart may be a parameter for determining a resource element to which the sPDSCH is mapped in the earliest sTTI in the subframe.

The index of the OFDM symbol where the mapping of the PDSCH and sPDSCH to the resource element is started may be given based on the parameter l _DataStart . That is, the parameter l _DataStart may be a parameter for determining an OFDM symbol to which the PDSCH and sPDSCH are mapped. The parameter l _DataStart may be a parameter for determining an OFDM symbol to which the PDSCH is mapped in the subframe. The parameter l _DataStart may be a parameter for determining an OFDM symbol to which the sPDSCH is mapped in the earliest sTTI in the subframe.

The complex-valued symbol for PDSCH is mapped to an OFDM symbol with an index equal to or greater than the parameter l _DataStart in the first slot of the subframe. The complex value symbol for PDSCH is also mapped to the second slot of the subframe.

The complex-valued symbol for sPDSCH is mapped to an OFDM symbol with an index equal to or greater than the parameter l _DataStart in sTTI in the first slot of the subframe. In FIG. 5, when the parameter l _DataStart is 1, the complex value symbol related to sPDSCH in the first sTTI is mapped to the OFDM symbol with indexes 1 and 2. In FIG. 5, when the parameter l _DataStart is 2 or 3, the complex value symbol related to sPDSCH is not mapped to the OFDM symbol in the first sTTI. That is, in FIG. 5, when the parameter l _DataStart is 2 or 3, the sPDSCH cannot be transmitted in the first sTTI.

  The terminal device 1 in this embodiment is a terminal device in which sTTI is set for the downlink of the primary cell, the uplink of the primary cell, the downlink of the secondary cell, and the uplink of the secondary cell. The base station apparatus 3 may transmit information including RRC layer parameters for setting sTTI to the terminal apparatus 1.

  In the present embodiment, the primary cell and the secondary cell are included in the primary PUCCH group. That is, in this embodiment, HARQ-ACK for the transport block received in the secondary cell is transmitted in the primary cell.

  FIG. 6 is a diagram illustrating an example of HARQ-ACK transmission timing in the present embodiment. In FIG. 6, subframe 600 includes sTTIs 601 to 606, and subframe 610 includes sTTIs 611 to 616. The base station device 3 transmits the sPDSCH 620 in the primary cell in the sTTI 601. The base station device 3 transmits the sPDSCH 630 in the secondary cell in the sTTI 601. The sPDSCH 620 includes two transport blocks 621 and 622. The sPDSCH 630 includes two transport blocks 631 and 632. The terminal device 1 receives the four transport blocks 621, 622, 631, and 632 in the sTTI 601.

The terminal device 1 transmits HARQ-ACK for the transport blocks 621, 622, 631, and 632 using the sPUCCH resource 640 or the sPUCCH resource 650 in the primary cell in the sTTI 611. The sPUCCH resource 640 includes four sPUCCH resources for HARQ-ACK {n ⁽¹⁾ _{sPUCCH, 0} , n ⁽¹⁾ _{sPUCCH, 1} , n ⁽¹⁾ _{sPUCCH, 2} , n ⁽¹⁾ _{sPUCCH, 3} } Good. The sPUCCH resource 650 is an sPUCCH resource for a scheduling request. The sPUCCH resource for HARQ-ACK is also referred to as HARQ-ACK sPUCCH resource. The sPUCCH resource for the scheduling request is also referred to as SR sPUCCH resource.

The base station apparatus 3 determines the HARQ-ACK PUCCH resource 640 {n ⁽¹⁾ _{sPUCCH, 0} , n ⁽¹⁾ _{sPUCCH, 1} , n ⁽¹⁾ _{sPUCCH, 2} , n ⁽¹⁾ _{sPUCCH, 3} } Information including parameters of the RRC layer may be transmitted to the terminal device 1. The base station apparatus 3 may transmit information including parameters of the RRC layer for indicating the SR PUCCH resource 650 to the terminal apparatus 1.

  FIG. 7 is a diagram illustrating an example of correspondence between HARQ-ACK (j) and transport blocks in the present embodiment. In FIG. 7, HARQ-ACK (0) corresponds to the transport block 621, HARQ-ACK (1) corresponds to the transport block 622, HARQ-ACK (2) corresponds to the transport block 631, and , HARQ-ACK (3) corresponds to the transport block 632.

When the terminal device 1 receives the transport block 621 and the transport block 622 in the earliest sTTI 601 in the subframe 600 in the primary cell, the terminal device 1 determines the transport based on the value of the parameter l _DataStart for the secondary cell. It may be determined whether HARQ-ACK (0) for block 621 and HARQ-ACK (1) for transport block 622 are spatially bundled. For example, the transport block 621 and the transport block 622 are received in the earliest sTTI 601 in the subframe 600 in the primary cell, the scheduling request is a positive scheduling request, and the HARQ-ACK and the scheduling request are transmitted in the sTTI 611. In this case, the terminal device 1 _{spatially bundles} HARQ-ACK (0) for the transport block 621 and HARQ-ACK (1) for the transport block 622 based on the value of the parameter l _DataStart for the secondary cell. You may decide whether or not.

  FIG. 8 is a flow chart for selecting a HARQ-ACK and / or scheduling request transmission method in the sTTI 611 of the present embodiment.

  (S800) In the case of a positive scheduling request, the terminal device 1 proceeds to S801. In the case of a negative scheduling request, the terminal device 1 proceeds to S802.

(S801) When the terminal device 1 detects two transport blocks 621 and 622 in the primary cell in the sTTI 601 in the subframe 600, and the parameter l _DataStart for the secondary cell in the subframe 600 is not a predetermined value The process proceeds to step S803. Here, the predetermined value may be 2 or 3. Here, parameter l _D for the secondary cell in subframe 600
_dataStart may be 1. Here, the terminal device 1 performs the s in the subframe 600.
In the secondary cell in the TTI 601, the two transport blocks 631 and 632 may or may not be detected.

(S801) When the terminal device 1 detects two transport blocks 621 and 622 in the primary cell in the sTTI 601 in the subframe 600, and the parameter l _DataStart for the secondary cell in the subframe 600 is a predetermined value , The process proceeds to S804. Here, the predetermined value may be 2 or 3. Here, the terminal device 1 does not detect the two transport blocks 631 and 632 in the secondary cell in the sTTI 601 in the subframe 600.

  (S802) The terminal device 1 transmits HARQ-ACK using sPUCCH640 in sTTI611. The terminal device 1 transmits HARQ-ACK using sPUCCH format 1b (PUCCH format 1b with channel selection) with channel selection in sTTI611.

  (S803) The terminal device 1 transmits HARQ-ACK using sPUCCH650 in sTTI611. The terminal apparatus 1 transmits HARQ-ACK in sTTI 611 using the first transmission method (HARQ-ACK and SR transmission method for FDD with sPUCCH format 1b with channel selection).

  (S804) The terminal device 1 transmits HARQ-ACK using sPUCCH650 in sTTI611. The terminal device 1 transmits HARQ-ACK in sTTI 611 using the second transmission method (HARQ-ACK and SR transmission method for FDD with sPUCCH format 1b).

  The base station apparatus 3 may determine that the scheduling request is a negative scheduling request based on the reception of HARQ-ACK on the sPUCCH 640. The base station apparatus 3 may determine that the scheduling request is a positive scheduling request based on the reception of HARQ-ACK on the sPUCCH 650.

  Hereinafter, the PUCCH format 1b with channel selection in S802 will be described.

When the scheduling request is a negative scheduling request, the terminal apparatus 1 transmits the bits b (0) b (1) in the sPUCCH resource n ⁽¹⁾ _sPUCCH in the sTTI 611 using the sPUCCH format 1b. In response to HARQ-ACK (0), HARQ-ACK (1), HARQ-ACK (2), and HARQ-ACK (3), the terminal apparatus 1 has four sPUCCH resources {n ⁽¹⁾ _{sPUCCH, 0.} , N ⁽¹⁾ _{sPUCCH, 1} , n ⁽¹⁾ _{sPUCCH, 2} , n ⁽¹⁾ _{sPUCCH, 3} } may select ^one sPUCCH resource n ⁽¹⁾ _sPUCCH . In response to HARQ-ACK (0), HARQ-ACK (1), HARQ-ACK (2), and HARQ-ACK (3), the terminal device 1 determines the value of b (0) and b (1). A value may be set. FIG. 9 shows HARQ-ACK (j) and sPUCCH resource n ⁽¹⁾ _sPUCCH in this embodiment.
It is a figure which shows an example of a response | compatibility with b (0) b (1). For example, when each of HARQ-ACK (0), HARQ-ACK (1), HARQ-ACK (2), and HARQ-ACK (3) is ACK, the terminal device 1 uses the sPUCCH resource n ^(1). _sPUCCH as ⁿ _{(1) sPUCCH, 1} may be selected, and, b (0) and b may be set to 1 each (1).

  Hereinafter, the first transmission method in S803 (HARQ-ACK and SR transmission method for FDD with sPUCCH format 1b with channel selection) will be described.

  With respect to the first transmission method, when the scheduling request is a positive scheduling request and the HARQ-ACK and the scheduling request are transmitted in sTTI 611, the terminal apparatus 1 uses one bit for each serving cell in the SR sPUCCH resource 650. Send HARQ-ACK. The HARQ-ACK bit for the primary cell is mapped to b (0). The HARQ-ACK bit for the secondary cell is mapped to b (1). Here, 1-bit HARQ-ACK for each serving cell is generated according to the following rules (1) to (3). In rule (1), if one transport block is received at the serving cell, the HARQ-ACK bit for the serving cell is the HARQ-ACK bit corresponding to the one transport block. In rule (2), if two transport blocks are received at the serving cell, the HARQ-ACK bits for the serving cell spatially bundle the two HARQ-ACK bits corresponding to the two transport blocks Generated by spatial bundling. In rule (3), if no sPDSCH transmission (PDSCH transmission for which HARQ-ACK response shall be provided) for which a HARQ-ACK response must be provided is detected in the serving cell, the HARQ-ACK bit for the serving cell is set to NACK. Set.

  FIG. 10 is a diagram illustrating an example of an operation related to the rule (2) in the first transmission method according to the present embodiment. In S10a, the terminal device 1 generates HARQ-ACK bits for the primary cell by spatially bundling HARQ-ACK (0) and HARQ-ACK (1). In S10b, the terminal device 1 generates HARQ-ACK bits for the secondary cell by spatially bundling HARQ-ACK (2) and HARQ-ACK (3). In each of S10a and S10b, when each of two input HARQ-ACK bits is ACK, HARQ-ACK generated by spatially bundling is set to ACK. In S10a and S10b, when at least one of the two input HARQ-ACK bits is NACK, HARQ-ACK generated by spatially bundling is set to NACK.

  The HARQ-ACK bit for each serving cell is set to ACK or NACK. The terminal device 1 encodes the HARQ-ACK bit for each serving cell into binary bits. The terminal device 1 encodes ACK as binary “1” and NACK as binary “0”.

  Hereinafter, the second transmission method in S804 (HARQ-ACK and SR transmission method for FDD with sPUCCH format 1b) will be described.

With respect to the second transmission method, when the scheduling request is a positive scheduling request and the HARQ-ACK and the scheduling request are transmitted in the sTTI 611, the terminal apparatus 1 transmits the HARQ-ACK in the SR sPUCCH resource 650. . Here, HARQ-ACK includes HARQ-ACK (0) and HARQ-ACK (1), and does not include HARQ-ACK (2) and HARQ-ACK (3). That is, when the scheduling request is a positive scheduling request and the HARQ-ACK and the scheduling request are transmitted in sTTI 611 with respect to the second transmission method, the terminal apparatus 1 uses the SR sPUCCH resource 650 in the sTTI 601 in the primary cell. The HARQ-ACK for each transport block in is transmitted. In the second transmission method, HARQ-ACK (0) and HARQ-ACK (1) are not spatially bundled.

  FIG. 11 is a diagram illustrating an example of an operation related to the second transmission method in the present embodiment. In S11a, the terminal device 1 encodes HARQ-ACK (0) into binary bits. In S11b, the terminal device 1 encodes HARQ-ACK (1) into binary bits. The HARQ-ACK bit for each transport is set to ACK or NACK. The terminal device 1 encodes ACK as binary “1” and NACK as binary “0”.

In S802, S803, and S804, the terminal apparatus 1 generates one complex-valued symbol by modulating b (0) b (1), and P
The one complex value symbol may be transmitted using the UCCH format 1b.

  Hereinafter, the device configuration of the terminal device 1 of the present invention will be described.

  FIG. 12 is a schematic block diagram showing the configuration of the terminal device 1 according to the present invention. As illustrated, the terminal device 1 includes an upper layer processing unit 101, a control unit 103, a receiving unit 105, a transmitting unit 107, and a transmission / reception antenna 109. The upper layer processing unit 101 includes a radio resource control unit 1011 and a scheduling unit 1013. The reception unit 105 includes a decoding unit 1051, a demodulation unit 1053, a demultiplexing unit 1055, a radio reception unit 1057, and a channel measurement unit 1059. The transmission unit 107 includes an encoding unit 1071, a PUSCH generation unit 1073, a PUCCH generation unit 1075, a multiplexing unit 1077, a radio transmission unit 1079, and an uplink reference signal generation unit 10711.

  Upper layer processing section 101 outputs uplink data generated by a user operation or the like to transmitting section 107. The upper layer processing unit 101 includes a medium access control (MAC) layer, a packet data integration protocol (PDCP) layer, a radio link control (Radio Link Control: RLC) layer, and radio resource control. Process the (Radio Resource Control: RRC) layer. Further, upper layer processing section 101 generates control information for controlling receiving section 105 and transmitting section 107 based on downlink control information received by PDCCH, and outputs the control information to control section 103.

  The radio resource control unit 1011 included in the higher layer processing unit 101 manages various setting information of the own device. For example, the radio resource control unit 1011 manages the set serving cell. Also, the radio resource control unit 1011 generates information arranged in each uplink channel and outputs the information to the transmission unit 107. When the received downlink data is successfully decoded, the radio resource control unit 1011 generates an ACK and outputs an ACK to the transmitting unit 107. When the received downlink data fails to be decoded, the radio resource control unit 1011 returns NACK. And NACK is output to the transmission unit 107.

The scheduling unit 1013 included in the higher layer processing unit 101 stores the downlink control information received via the receiving unit 105. The scheduling unit 1013 controls the transmission unit 107 via the control unit 103 so as to transmit PUSCH or sPUSCH according to the received uplink grant in a subframe four times after the subframe that has received the uplink grant. The scheduling unit 1013 controls the reception unit 105 via the control unit 103 to receive PDSCH or sPDSCH in accordance with the received downlink grant in the subframe that has received the downlink grant.

  The control unit 103 generates a control signal for controlling the reception unit 105 and the transmission unit 107 based on the control information from the higher layer processing unit 101. Control unit 103 outputs the generated control signal to receiving unit 105 and transmitting unit 107 to control receiving unit 105 and transmitting unit 107.

  The receiving unit 105 separates, demodulates, and decodes the received signal received from the base station apparatus 3 via the transmission / reception antenna 109 according to the control signal input from the control unit 103, and sends the decoded information to the upper layer processing unit 101. Output.

The wireless reception unit 1057 performs orthogonal demodulation on the downlink signal received via the transmission / reception antenna 109, and converts the orthogonally demodulated analog signal into a digital signal. The radio reception unit 1057 performs fast Fourier transform (FFT) on the digital signal to extract a frequency domain signal.

  The demultiplexing unit 1055 demultiplexes the extracted signals into PDCCH, sPDSCH, PCFICH, PDSCH, sPDSCH, and a downlink reference signal. The demultiplexing unit 1055 outputs the separated downlink reference signal to the channel measuring unit 1059.

Demodulation section 1053 demodulates PDCCH, sPDCCH, PDSCH, and sPDSCH for modulation schemes such as QPSK, 16QAM (Quadrature Amplitude Modulation), and 64 QAM, and outputs the result to decoding section 1051.

  Decoding section 1051 decodes the downlink data and outputs the decoded downlink data to higher layer processing section 101. Channel measurement section 1059 calculates an estimated value of the downlink propagation path from the downlink reference signal, and outputs the estimated value to demultiplexing section 1055. The channel measurement unit 1059 calculates channel state information and outputs the channel state information to the upper layer processing unit 101.

  The transmission unit 107 generates an uplink reference signal according to the control signal input from the control unit 103, encodes and modulates uplink data and uplink control information input from the higher layer processing unit 101, and PUCCH, The PUSCH and the generated uplink reference signal are multiplexed and transmitted to the base station apparatus 3 via the transmission / reception antenna 109.

  The encoding unit 1071 encodes the uplink control information and the uplink data input from the higher layer processing unit 101, and outputs the encoded bits to the PUSCH generation unit and / or the PUCCH generation unit.

The PUSCH generation unit 1073 generates a modulation symbol by modulating the encoded bit h _i input from the encoding unit 1071, generates a PUSCH / sPUSCH signal by performing DFT on the modulation symbol, and is also subjected to DFT. The PUSCH / sPUSCH signal is output to multiplexing section 1077.

PUCCH generation section 1075 generates a PUCCH / sPUCCH signal based on encoded bits q _i / g _i and / or SR input from encoding section 1071, and multiplexes the generated PUCCH / sPUCCH signal Output to the unit 1077.

  The uplink reference signal generation unit 10711 generates an uplink reference signal and outputs the generated uplink reference signal to the multiplexing unit 1077.

  The multiplexing unit 1075 receives the signal input from the PUSCH generation unit 1073 and / or the signal input from the PUCCH generation unit 1075 and / or the uplink reference signal generation unit 10711 according to the control signal input from the control unit 103. The uplink reference signal input from is multiplexed to the uplink resource element for each transmission antenna port.

The radio transmission unit 1077 converts the multiplexed signal into an inverse fast Fourier transform (Inverse Fast Fourier Transform).
Transform: IFFT) to perform SC-FDMA modulation, generate baseband digital signal, convert baseband digital signal to analog signal, generate in-phase and quadrature components of intermediate frequency from analog signal Then, an extra frequency component for the intermediate frequency band is removed, an intermediate frequency signal is converted to a high frequency signal (up convert: up convert), an extra frequency component is removed, power amplification is performed, and the transmission / reception antenna 109 Output and send.

  Hereinafter, the apparatus configuration of the base station apparatus 3 of the present invention will be described.

  FIG. 13 is a schematic block diagram showing the configuration of the base station apparatus 3 in the present invention. As illustrated, the base station apparatus 3 includes an upper layer processing unit 301, a control unit 303, a reception unit 305, a transmission unit 307, and a transmission / reception antenna 309. The upper layer processing unit 301 includes a radio resource control unit 3011 and a scheduling unit 3013. The reception unit 305 includes a data demodulation / decoding unit 3051, a control information demodulation / decoding unit 3053, a demultiplexing unit 3055, a wireless reception unit 3057, and a channel measurement unit 3059. The transmission unit 307 includes an encoding unit 3071, a modulation unit 3073, a multiplexing unit 3075, a radio transmission unit 3077, and a downlink reference signal generation unit 3079.

  The upper layer processing unit 301 includes a medium access control (MAC) layer, a packet data integration protocol (PDCP) layer, a radio link control (RLC) layer, and a radio resource control (Radio). Resource Control (RRC) layer processing. Further, upper layer processing section 301 generates control information for controlling receiving section 305 and transmitting section 307 and outputs the control information to control section 303.

The radio resource control unit 3011 included in the higher layer processing unit 301 generates downlink data, RRC signal, and MAC CE (Control Element) arranged in the downlink PDSCH, or acquires from the upper node, and the HARQ control unit 3013 Output to. Further, the radio resource control unit 3011 manages various setting information of each mobile station apparatus 1. For example, the radio resource control unit 3011 performs management of the serving cell set in the mobile station device 1.

  The scheduling unit 3013 included in the higher layer processing unit 301 manages PUSCH, sPUSCH, PUCCH, and sPUCCH radio resources allocated to the mobile station apparatus 1. When the radio resource of PUSCH or sPUSCH is allocated to the mobile station device 1, the scheduling unit 3013 generates an uplink grant indicating the allocation of the radio resource of PUSCH or sPUSCH, and transmits the generated uplink grant to the transmission unit 307. Output.

The control unit 303 generates a control signal for controlling the reception unit 305 and the transmission unit 307 based on the control information from the higher layer processing unit 301. The control unit 303 outputs the generated control signal to the reception unit 305 and the transmission unit 307 and controls the reception unit 305 and the transmission unit 307.

  The receiving unit 305 separates, demodulates and decodes the received signal received from the mobile station apparatus 1 via the transmission / reception antenna 309 according to the control signal input from the control unit 303, and outputs the decoded information to the higher layer processing unit 301. To do.

The radio reception unit 3057 orthogonally demodulates an uplink signal received via the transmission / reception antenna 309 and converts the orthogonally demodulated analog signal into a digital signal. The radio reception unit 3057 performs fast Fourier transform (FFT) on the digital signal, extracts a frequency domain signal, and outputs the signal to the demultiplexing unit 3055.

  The demultiplexing unit 1055 demultiplexes the signal input from the radio reception unit 3057 into signals such as PUCCH, sPUCCH, PUSCH, sPUSCH, and uplink reference signal. This separation is performed based on radio resource allocation information included in the uplink grant that is determined in advance by the radio resource control unit 3011 by the base station device 3 and notified to each mobile station device 1. The demultiplexing unit 3055 compensates for the propagation paths of the PUCCH, sPUCCH, PUSCH, and sPUSCH from the propagation path estimation value input from the channel measurement unit 3059. Further, the demultiplexing unit 3055 outputs the separated uplink reference signal to the channel measurement unit 3059.

  The demultiplexing unit 3055 acquires the modulation symbol of the uplink data and the modulation symbol of the uplink control information (HARQ-ACK) from the separated PUCCH, sPUCCH, PUSCH, and sPUSCH signals. The demultiplexing unit 3055 outputs the modulation symbol of the uplink data acquired from the PUSCH or sPUSCH signal to the data demodulation / decoding unit 3051. The demultiplexing unit 3055 outputs the modulation symbol of the uplink control information (HARQ-ACK) acquired from the PUCCH signal, the sPUCCH signal, the PUSCH signal, or the sPUSCH signal to the control information demodulation / decoding unit 3053.

  Channel measurement section 3059 measures an estimated value of the propagation path, channel quality, and the like from the uplink reference signal input from demultiplexing section 3055 and outputs the result to demultiplexing section 3055 and higher layer processing section 301.

  The data demodulation / decoding unit 3051 decodes the uplink data from the modulation symbol of the uplink data input from the demultiplexing unit 3055. The data demodulation / decoding unit 3051 outputs the decoded uplink data to the higher layer processing unit 301.

  Control information demodulation / decoding section 3053 decodes HARQ-ACK from the modulation symbol of HARQ-ACK input from demultiplexing section 3055. Control information demodulation / decoding section 3053 outputs the decoded HARQ-ACK to higher layer processing section 301.

  The transmission unit 307 generates a downlink reference signal according to the control signal input from the control unit 303, encodes and modulates the downlink control information and downlink data input from the higher layer processing unit 301, and performs PDCCH , SPDCCH, PDSCH, sPDSCH, and the downlink reference signal are multiplexed, and the signal is transmitted to the mobile station apparatus 1 via the transmission / reception antenna 309.

Encoding section 3071 encodes downlink control information and downlink data input from higher layer processing section 301. The modulation unit 3073 modulates the coded bits input from the coding unit 3071 using a modulation scheme such as BPSK, QPSK, 16QAM, or 64QAM.

  The downlink reference signal generation unit 3079 generates a downlink reference signal. Multiplexer 3075 multiplexes the modulation symbols and downlink reference signals for each channel.

The radio transmission unit 3077 performs inverse fast Fourier transform (IFFT) on the multiplexed modulation symbols and the like to perform OFDM modulation, generate a baseband digital signal, and convert the baseband digital signal to Convert to analog signal, generate in-phase and quadrature components of intermediate frequency from analog signal, remove excess frequency component for intermediate frequency band, convert intermediate frequency signal to high frequency signal (up-conversion: up
convert), remove excess frequency components, amplify the power, and output to the transmission / reception antenna 309 for transmission.

  Each of the units included in the terminal device 1 and the base station device 3 may be configured as a circuit. One or a plurality of units in FIGS. 12 and 13 may be configured as at least one processor and a memory coupled to the at least one processor.

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

(1) The first aspect of the present embodiment is a terminal device 1 that communicates with the base station device 3 using two serving cells including one primary cell and one secondary cell, and receives a transport block The first transport block 621 and the second transport block 622 are received in the unit 105 and the earliest sTTI 601 in the subframe 600 in the primary cell, the scheduling request is a positive scheduling request, and When the HARQ-ACK and the scheduling request are transmitted in the second sTTI 611, the parameter l _D for the secondary cell
_{Based on} the value of _dataStart , either the first transmission method or the second transmission method is selected as the transmission method, and the first sPUCCH resource 650 for the scheduling request is selected using the selected transmission method. A transmission unit 107 that transmits a first HARQ-ACK, wherein the parameter l _DataStart for the secondary cell is a parameter for specifying a mapping of PDSCH or sPDSCH to a resource element, and the first transmission method The first HARQ-ACK includes a second HARQ-ACK for the primary cell and a third HARQ-ACK for the secondary cell, and the first HARQ-ACK for the second transmission method. ACK is sent to the first transport block 621. The fourth HARQ-ACK and the fifth HARQ-ACK for the second transport block 622, and the second HARQ-ACK for the primary cell includes the fourth HARQ-ACK and the fifth HARQ-ACK. Generated by spatially bundling HARQ-ACK.

  (2) In the first aspect of this embodiment, the transmission of the sPDSCH for which the HARQ-ACK response must be provided for the first transmission method is received in the earliest sTTI 601 in the subframe 600 in the secondary. If not, the third HARQ-ACK for the secondary cell is set to NACK.

  (3) In the first aspect of the present embodiment, the first HARQ-ACK does not include the third HARQ-ACK for the secondary cell with respect to the second transmission method.

(4) The second aspect of the present embodiment is a base station device 3 that communicates with the terminal device 1 using two serving cells including one primary cell and one secondary cell, and transmits a transport block. When the first transport block 621 and the second transport block 622 are transmitted in the earliest sTTI 601 in the sub-frame 600 in the primary cell, the first transport block 621 and the first transport block for the scheduling request in the second sTTI 611 a receiving unit 305 that receives the first HARQ-ACK in the sPUCCH resource 650, and when the parameter l _DataStart for the secondary cell is a predetermined value, the first HARQ-ACK is the first HARQ-ACK for the primary cell. 2 HA It includes a third HARQ-ACK for the Q-ACK to the secondary cell, when the parameter l _datastart for the secondary cell is not a predetermined value, the first HARQ-ACK is first with respect to the first transport block 4 HARQ-ACK and a fifth HARQ-ACK for the second transport block, and the second HARQ-ACK for the primary cell is transmitted by the terminal device 1 to the second HARQ-ACK and the second HARQ-ACK. 3 HARQ-ACKs are spatially bundled and the parameter l _D for the secondary cell
_dataStart is a parameter for specifying the mapping of PDSCH or sPDSCH to resource elements. Here, the predetermined value may be 2 and 3.

(5) In the second aspect of the present embodiment, when the parameter l _DataStart for the secondary cell is the predetermined value, the terminal device 1 must provide a HARQ-ACK response to transmit the sPDSCH. If not received in the earliest sTTI 601 in the subframe 600 at the secondary, the third HARQ-ACK for the secondary cell is set to NACK.

(6) In the second aspect of the present embodiment, when the parameter l _DataStart for the secondary cell is not the predetermined value, the first HARQ-ACK is the third HARQ-ACK for the secondary cell. Not included.

  Thereby, the terminal device can efficiently transmit the uplink control information. Moreover, the base station apparatus can receive uplink control information efficiently.

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 a RAM (Random Access Memory) at the time of processing, and thereafter, various ROMs such as a 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). In addition, the base station device 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 apparatus 3 Base station apparatus 101 Upper layer processing section 103 Control section 105 Reception section 107 Transmission section 301 Upper layer processing section 303 Control section 305 Reception section 307 Transmission section 1011 Radio resource control section 1013 Scheduling section 3011 Radio resource control unit 3013 Scheduling unit

Claims (12)

A terminal device that communicates with a base station device using two serving cells including one primary cell and one secondary cell,
A receiver for receiving the transport block;
The first transport block and the second transport block are received in the earliest sTTI in the subframe in the primary cell, the scheduling request is a positive scheduling request, and HARQ-ACK in the second sTTI When the scheduling request is transmitted, the first transmission method or the second transmission method is selected as the transmission method based on the value of the parameter l _DataStart for the secondary cell, and the selected transmission method is selected. A transmitter that transmits a first HARQ-ACK in a first sPUCCH resource for the scheduling request using
The parameter l _DataStart for the secondary cell is a parameter for specifying the mapping of PDSCH or sPDSCH to resource elements,
For the first transmission method, the first HARQ-ACK includes a second HARQ-ACK for the primary cell and a third HARQ-ACK for the secondary cell;
For the second transmission method, the first HARQ-ACK includes a fourth HARQ-ACK for the first transport block and a fifth HARQ-ACK for the second transport block. ,
The second HARQ-ACK for the primary cell is generated by spatially bundling the fourth HARQ-ACK and the fifth HARQ-ACK.   For the first transmission method, if the transmission of the sPDSCH for which an HARQ-ACK response must be provided is not received in the earliest sTTI in the subframe in the secondary, the third for the secondary cell The terminal apparatus according to claim 1, wherein HARQ-ACK is set to NACK.   The terminal apparatus according to claim 1, wherein, for the second transmission method, the first HARQ-ACK does not include the third HARQ-ACK for the secondary cell. A base station device that communicates with a terminal device using two serving cells including one primary cell and one secondary cell,
A transmission unit for transmitting a transport block;
If the first transport block and the second transport block are transmitted in the earliest sTTI in the subframe in the primary cell, the first HARQ in the first sPUCCH resource for the scheduling request in the second sTTI A receiving unit for receiving ACK,
When the parameter l _DataStart for the secondary cell is a predetermined value, the first HARQ-ACK includes a second HARQ-ACK for the primary cell and a third HARQ-ACK for the secondary cell;
When the parameter l _DataStart for the secondary cell is not the predetermined value, the first HARQ-ACK includes the fourth HARQ-ACK for the first transport block and the fifth HARQ-ACK for the second transport block. Including HARQ-ACK,
The second HARQ-ACK for the primary cell is generated by spatially bundling the fourth HARQ-ACK and the fifth HARQ-ACK by the terminal device,
The parameter l _DataStart for the secondary cell is a parameter for specifying mapping of PDSCH or sPDSCH to resource elements. If the parameter l _DataStart for the secondary cell is the predetermined value, a transmission of the sPDSCH in which a HARQ-ACK response must be provided by the terminal device is not received in the earliest sTTI in the subframe in the secondary The base station apparatus according to claim 4, wherein the third HARQ-ACK for the secondary cell is set to NACK. The base station apparatus according to claim 4, wherein when the parameter l _DataStart for the secondary cell is not the predetermined value, the first HARQ-ACK does not include the third HARQ-ACK for the secondary cell. A communication method used for a terminal apparatus that communicates with a base station apparatus using two serving cells including one primary cell and one secondary cell,
Receive transport block,
The first transport block and the second transport block are received in the earliest sTTI in the subframe in the primary cell, the scheduling request is a positive scheduling request, and HARQ-ACK in the second sTTI And the scheduling request is transmitted, based on the value of the parameter l _DataStart for the secondary cell, the first transmission method and the second transmission method are selected as the transmission method,
Transmitting a first HARQ-ACK in a first sPUCCH resource for the scheduling request using the selected transmission method;
The parameter l _DataStart for the secondary cell is a parameter for specifying the mapping of PDSCH or sPDSCH to resource elements,
For the first transmission method, the first HARQ-ACK includes a second HARQ-ACK for the primary cell and a third HARQ-ACK for the secondary cell;
For the second transmission method, the first HARQ-ACK includes a fourth HARQ-ACK for the first transport block and a fifth HARQ-ACK for the second transport block. ,
The second HARQ-ACK for the primary cell is generated by spatially bundling the fourth HARQ-ACK and the fifth HARQ-ACK.   For the first transmission method, if the transmission of the sPDSCH for which an HARQ-ACK response must be provided is not received in the earliest sTTI in the subframe in the secondary, the third for the secondary cell The communication method according to claim 7, wherein HARQ-ACK is set to NACK.   The communication method according to claim 7, wherein the first HARQ-ACK does not include the third HARQ-ACK for the secondary cell with respect to the second transmission method. A communication method used for a base station apparatus that communicates with a terminal apparatus using two serving cells including one primary cell and one secondary cell,
Send transport block,
If the first transport block and the second transport block are transmitted in the earliest sTTI in the subframe in the primary cell, the second sTT
Receiving a first HARQ-ACK on a first sPUCCH resource for a scheduling request in I;
When the parameter l _DataStart for the secondary cell is a predetermined value, the first HARQ-ACK includes a second HARQ-ACK for the primary cell and a third HARQ-ACK for the secondary cell;
When the parameter l _DataStart for the secondary cell is not the predetermined value, the first HARQ-ACK includes the fourth HARQ-ACK for the first transport block and the fifth HARQ-ACK for the second transport block. Including HARQ-ACK,
The second HARQ-ACK for the primary cell is generated by spatially bundling the fourth HARQ-ACK and the fifth HARQ-ACK by the terminal device,
The parameter l _DataStart for the secondary cell is a communication method for specifying mapping of PDSCH or sPDSCH to resource elements. If the parameter l _DataStart for the secondary cell is the predetermined value, a transmission of the sPDSCH in which a HARQ-ACK response must be provided by the terminal device is not received in the earliest sTTI in the subframe in the secondary The communication method according to claim 10, wherein the third HARQ-ACK for the secondary cell is set to NACK. The communication method according to claim 10, wherein when the parameter l _DataStart for the secondary cell is not the predetermined value, the first HARQ-ACK does not include the third HARQ-ACK for the secondary cell.

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