terminal and base station

Abstract

The terminal has a transmission section that transmits a transport block, and a reception section that receives control information associated with a part of the entire transport block at a timing at which the part is transmitted.

Description

TECHNICAL FIELD

[0001] The present application relates to a terminal and a base station in a wireless communication system. BACKGROUND

[0002] Research on the sixth-generation mobile communication technology (referred to as Beyond 5G, 5G evolution, 6G, etc.) that aims to complete the specifications by 2025 has begun at home and abroad. For example, the Ministry of Science and Technology of China announced in November 2019 that it has officially begun research and development of 6G.

[0003] As a candidate for research topics for Beyond 5G and 6G, for example, research topics such as the following are envisaged.

[0004] Research topics to open up new frequency bands. For example, it is also possible to research opening up a frequency band of 100 GHz or more, terahertz bands, and the like as a frequency band for 6G.

[0005] Research topics to achieve further speedup in existing 5G frequency bands (100 GHz or less). Specifically, it is also possible to research narrow beam, inter-base station coordinated transmission / reception, inter-terminal coordinated transmission / reception, and the like.

[0006] It is also possible to research power consumption reduction of mobile terminals and mobile base stations and the like, and implementation of long-period use without charging.

[0007] PRIOR ART DOCUMENTS

[0008] NON-PATENT DOCUMENTS

[0009] Non-Patent Document 1: White Paper 5G’s Heightened and 6G, NTT DoCoMo, Inc., January 2020

[0010] Non-Patent Document 2: 3GPP TS 38.213 V16.0.0 (2019-12)

[0011] Non-Patent Document 3: 3GPP TS 38.133 V16.2.0 (2019-12) SUMMARY

[0012] PROBLEMS TO BE SOLVED BY THE INVENTION

[0013] In the case where the transmission and reception processing of data and the transmission and reception processing of feedback and / or control information are sequentially performed, a time gap accompanying feedback and / or control occurs.

[0014] There is a need for a technology capable of reducing the time gap accompanying feedback and / or control.

[0015] MEANS FOR SOLVING THE PROBLEMS

[0016] According to one embodiment of the present application, there is provided a terminal including a transmission unit that transmits a transport block, and a reception unit that receives control information associated with a part of the entire transport block at a timing at which the part is transmitted.

[0017] Effects of Invention

[0018] According to an embodiment, there is provided a technique capable of reducing time gaps accompanying feedback and / or control. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a configuration diagram of a communication system in the present embodiment.

[0020] Figure 2 is a diagram showing an example of a relationship between time and communication amount based on a conventional wireless communication technique.

[0021] Figure 3 is a diagram showing an example of a relationship between time and communication amount based on a wireless communication technique capable of achieving a high data rate.

[0022] Figure 4 is a diagram showing an example of SCell activation delay.

[0023] Figure 5 is a diagram showing an example of processing time of a terminal.

[0024] Figure 6 is a diagram showing an example of time required for a terminal to perform processing after reception of PDSCH until preparation for transmission of corresponding ACK / NACK is completed.

[0025] Figure 7 is a diagram showing an example of time required for a terminal to perform processing after reception of PDCCH including UL grant until preparation for transmission of corresponding PUSCH is completed.

[0026] Figure 8 is a diagram showing an example of performing DL data reception and UL feedback transmission at different timings.

[0027] Figure 9 is a diagram showing an example of simultaneously performing DL data reception and UL feedback transmission.

[0028] Figure 10 is a diagram showing an example of a functional configuration of a terminal.

[0029] Figure 11 is a diagram showing an example of a functional configuration of a base station.

[0030] Figure 12is a diagram showing an example of a hardware structure of a terminal and a base station. DETAILED DESCRIPTION

[0031] Hereinafter, an embodiment of the present application will be described with reference to the drawings. Note that the embodiment described below is merely an example, and the embodiment to which the present application is applied is not limited to the embodiment described below.

[0032] The wireless communication system in the embodiment below envisions substantially following the NR, but this is merely an example, and the wireless communication system in the embodiment can follow a wireless communication system other than the NR (example: LTE) in a part or all thereof.

[0033] (System overall structure)

[0034] Figure 1 A structure diagram of the wireless communication system of the embodiment is shown. As shown in Figure 1 , the wireless communication system of the embodiment includes a terminal 10 and a base station 20. In Figure 1 , one terminal 10 and one base station 20 are each shown, but this is merely an example, and a plurality of each can also be provided.

[0035] The terminal 10 is a communication device having a wireless communication function such as a smartphone, a mobile phone, a tablet, a wearable terminal, a communication module for M2M (Machine-to-Machine), and the like. The terminal 10 receives a control signal or data from the base station 20 through DL, and transmits a control signal or data to the base station 20 through UL, thereby utilizing various communication services provided by the wireless communication system. For example, channels transmitted from the terminal 10 include a PUCCH (Physical Uplink Control Channel) and a PUSCH (Physical Uplink Shared Channel). In addition, the terminal 10 can be referred to as a UE, and the base station 20 can be referred to as a gNB.

[0036] In the embodiment, the duplex method can be a TDD (Time Division Duplex) method, or an FDD (Frequency Division Duplex) method.

[0037] In addition, in the embodiment, "configuring" a radio parameter or the like can be pre-configuring a predetermined value, or can be configuring based on a radio parameter notified from the base station 20 or the terminal 10.

[0038] The base station 20 is a communication device that provides one or more cells and performs wireless communication with the terminal 10. A physical resource of a wireless signal is defined in a time domain and a frequency domain, the time domain can be defined by a number of OFDM symbols, and the frequency domain can be defined by a number of subcarriers or a number of resource blocks. The base station 20 transmits a synchronization signal and system information to the terminal 10. The synchronization signal is, for example, an NR-PSS and an NR-SSS. A part of the system information is transmitted by, for example, an NR-PBCH, also referred to as broadcast information. The synchronization signal and the broadcast information can be periodically transmitted as an SS block (SS / PBCH block) constituted by a predetermined number of OFDM symbols. The base station 20 transmits a control signal or data to the terminal 10 through a DL (Downlink), and receives a control signal or data from the terminal 10 through a UL (Uplink), for example. The base station 20 and the terminal 10 are each capable of performing beamforming to perform transmission and reception of a signal. A reference signal transmitted from the base station 20 includes a CSI-RS (Channel State Information Reference Signal), for example, and a channel transmitted from the base station 20 includes a PDCCH (Physical Downlink Control Channel) and a PDSCH (Physical Downlink Shared Channel), for example.

[0039] (Multi-numerology)

[0040] In order to support a wide range of frequencies or use cases in 5G, it is necessary to support multiple numerologies (wireless parameters such as subcarrier spacing, symbol length, etc.). Therefore, it is effective to design variable parameters scalably based on the numerology of LTE. Under this idea, multiple numerologies of NR are introduced. Specifically, the reference subcarrier spacing is the same as that of LTE, and is set to 15 kHz. By multiplying the reference subcarrier spacing by 2 raised to the power, other subcarrier spacings are specified. A plurality of subcarrier spacing configurations μ are specified. Specifically, subcarrier spacing Δf = 15 kHz, Cyclic prefix = Normal can be specified for μ = 0, subcarrier spacing Δf = 30 kHz, Cyclic prefix = Normal for μ = 1, subcarrier spacing Δf = 60 kHz, Cyclic prefix = Normal or Extended for μ = 2, subcarrier spacing Δf = 120 kHz, Cyclic prefix = Normal for μ = 3, and subcarrier spacing Δf = 240 kHz, Cyclic prefix = Normal for μ = 4.

[0041] The number of OFDM symbols included in one slot is set to 14 for any one of the subcarrier spacing configurations μ = 0, 1, 2, 3, 4. However, the number of slots included in 1 frame is 10, 20, 40, 80, 160 for the subcarrier spacing configurations μ = 0, 1, 2, 3, 4, and the number of slots included in 1 subframe is 1, 2, 4, 8, 16. Here, the length of the frame is 10 ms, so the slot length becomes 1 ms, 0.5 ms, 0.25 ms, 0.125 ms, 0.0625 ms for the subcarrier spacing configurations μ = 0, 1, 2, 3, 4. The number of OFDM symbols included in one slot is 14 for any one of the subcarrier spacing configurations μ = 0, 1, 2, 3, 4, so the OFDM symbol length differs for each subcarrier spacing configuration. The OFDM symbol length is (1 / 14) ms, (0.5 / 14) ms, (0.25 / 14) ms, (0.125 / 14) ms, (0.0625 / 14) ms for the subcarrier spacing configurations μ = 0, 1, 2, 3, 4. In this way, by shortening the slot length and the OFDM symbol length, low-delay communication can be achieved. For example, the base station 20 can set the subcarrier spacing to the terminal 10 by specifying any one of μ = 0, 1, 2, 3, 4 in subcarrierSpacing, which is a parameter of the information element BWP.

[0042] For example,Figure 2 is a graph showing an example of a relationship between time and traffic based on a conventional wireless communication technology. As shown in the example of Figure 2 , when the achievable data rate is not so high (e.g., 1 Gbps or less), it is considered that the time in which the terminal 10 is activated (ON) is longer than the time in which the terminal 10 is not activated (OFF).

[0043] On the contrary, as shown in the example of Figure 3 , in a case where the achievable data rate is high (e.g., 10 Gbps or more), it is assumed that the communication is completed in a short time, and the other large amount of time becomes no communication. Therefore, as shown in the example of Figure 3 , it is considered that the time in which the terminal 10 is activated (ON) is shorter than the time in which the terminal 10 is not activated (OFF).

[0044] (Problems)

[0045] In the 4th generation mobile communication system (4G, such as Long Term Evolution (LTE)) and the 5th generation mobile communication system (5G, such as New Radio (NR)), by the transmission and reception of a reference signal, it is possible to perform measurement and reporting of a channel state, measurement and reporting of an appropriate transmission and reception beam, determination of a modulation and coding scheme, determination of an allocation resource, determination of a beam, and the like.

[0046] Further, in a case where initial transmission is unsuccessful, it is possible to efficiently transmit retransmission data by HARQ (Hybrid Automatic Repeat Request).

[0047] However, in HARQ, for example, transmission, feedback, and retransmission of data are sometimes performed between the terminal 10 and the base station 20. Further, in a case where a reference signal is used, for example, measurement, feedback, and transmission of data (which reflects the feedback) of a channel state are sometimes performed between the terminal 10 and the base station 20. In these cases, for example, it is assumed that a time gap is generated therebetween due to a decoding delay or the like. For example, in the specification, a minimum delay from the transmission of data to the transmission of feedback or the like is specified.

[0048] Further, for a frequency band of 3 GHz or more, only a frequency band used as TDD is specified, and for example, switching between downlink (DL) communication and uplink (UL) communication is performed before and after the feedback of HARQ, and thus it is necessary to secure a time gap.

[0049] Here, it is assumed that, in a case where the peak data rate is high, for example, intermittent communication as shown in Figure 3 is performed. In this case, since the proportion of the time overhead due to the feedback or the like becomes relatively large, the efficiency of the communication can decrease.

[0050] On the contrary, it is also considered to apply outer loop control (for example, initially attempt communication with the parameter to be controlled, and gradually change to a parameter such that the data rate becomes higher in the case where communication is successful), which does not depend on feedback, and perform communication with the premise of correcting the communication parameter. However, in this case, it is possible that communication with low frequency utilization efficiency occurs by applying the parameter to be controlled. In addition, it is also possible that a large number of retransmissions occur by applying a parameter such that the data rate becomes higher. Therefore, in the case of applying outer loop control, optimization of communication cannot be performed, and it can be necessary to take a longer communication time. Therefore, it is considered that the communication efficiency is better in the case of performing feedback so that the parameter of communication is optimized, compared to outer loop control.

[0051] (SCell activation delay: SCell activation delay)

[0052] Figure 4 is a diagram illustrating an example of the SCell activation delay of Release 15 / 16 NR. As illustrated in Figure 4 for example, after the terminal 10 receives an indication (activation command) for setting an SCell in a deactivated state (a state in which the terminal 10 does not perform PDCCH monitoring and measurement / reporting of CSI) to an activated state (a state in which the terminal 10 can receive a PDCCH), it takes at least k1+3 ms+1 slot (time until the terminal 10 returns HARQ feedback for a PDSCH including the activation command+3 ms+1 slot) of time until the SCell is returned from the deactivated state to the activated state. As a required condition in the specification, a margin including time until the next reception of an SSB resource and a CSI measurement resource, and time for redeciding a reception beam is included, and a longer time can be taken for activation of the SCell.

[0053] (Processing time of the terminal 10)

[0054] Figure 5 is a diagram illustrating an example of the processing time of the terminal 10. Figure 5 N1 illustrated in Figure 6 may be, for example, the number of OFDM symbols required until the terminal 10 performs processing after reception of a PDSCH and completes preparation for transmission of the corresponding ACK / NACK. In addition, Figure 5 N2 illustrated in Figure 7The number of OFDM symbols required for the terminal 10 to perform processing and complete the transmission preparation of the corresponding NR-PUSCH after receiving the PDCCH including the UL grant as illustrated corresponds to the number of OFDM symbols. In Figure 5 In the example of FIG. 8, for example, the value of N1 for "PDSCH with front+additional DMRS" is larger than the value of N1 for "PDSCH with front-loaded DMRS" because the transmission preparation of ACK / NACK is completed after receiving the "additional DMRS".

[0055] (Proposal)

[0056] In the following embodiments, a method of reducing the time gap accompanying feedback and / or control by processing the transmission and reception of data and the transmission and reception of feedback and / or control information in parallel is proposed. By intermittently transmitting and receiving with short time overhead and high frequency utilization efficiency, it is possible to reduce the power consumption of the terminal 10 and to improve the system frequency utilization efficiency. Furthermore, in the following embodiments, the Duplex method can be either a TDD (Time Division Duplex) method or an FDD (Frequency Division Duplex) method, or a method other than these (for example, Flexible Duplex, Full Duplex, etc.). In the following embodiments, "at the same time" can be the same timing or can be the same or overlapping (overlap) in time resources (for example, all or part of one or more symbols (may also be a resource of a time unit shorter than a symbol)).

[0057] (1. DL data reception + UL feedback transmission)

[0058] The terminal 10 can transmit feedback information such as channel quality information and / or retransmission requests generated based on the reception, while receiving one or more transport blocks. For example, the terminal 10 can transmit feedback information such as channel quality information and / or retransmission requests generated based on the reception, using an uplink channel (for example, PUSCH, PUCCH, etc.) while receiving a downlink channel (for example, PDSCH, PDCCH, etc.) including one or more transport blocks. In this case, in the case where the Duplex method is a TDD method, for example, the terminal 10 can be configured with a UL-specific TDD carrier and a corresponding DL-specific TDD carrier.

[0059] For example, the carrier on which the terminal 10 receives data can be the same as the carrier on which the terminal 10 transmits feedback information. Also, for example, the carrier on which the terminal 10 receives data can be different from the carrier on which the terminal 10 transmits feedback information. In a case where the carrier on which the terminal 10 receives data is different from the carrier on which the terminal 10 transmits feedback information, the base station 20 (or the terminal 10) can set information indicating a correspondence relationship between the carrier on which the terminal 10 receives data and the carrier on which the terminal 10 transmits feedback information, and notify the terminal 10 (or the base station 20) of the set information. The terminal 10 can also receive, from the base station 20, information (for example, information indicating a correspondence relationship between a carrier on which the terminal 10 receives data and a carrier on which the terminal 10 transmits feedback information) regarding a frequency resource (or a carrier) on which the terminal 10 receives data and / or a frequency resource (or a frequency resource candidate, a carrier) on which the terminal 10 transmits feedback information. Also, the information regarding the frequency resource candidate for transmission or reception (for example, a frequency resource for reception and one or a plurality of frequency resource candidates for transmission) can be received through RRC signaling, and the frequency resource for transmission can be determined through downlink control information. Alternatively, the correspondence relationship can be specified in a specification.

[0060] For example, as the feedback information, new feedback information can be specified. For example, the terminal 10 can transmit only a part of the existing feedback information as the feedback information.

[0061] For example, in a case where the terminal 10 transmits feedback information while receiving a transport block, in a case where there are a plurality of transport blocks (TBs) or one TB is constituted by a plurality of code block groups (CBGs), the feedback information transmitted by the terminal 10 can be feedback information regarding a TB or a CBG received up to the transmission timing. Alternatively, the feedback information can be feedback information regarding a reception result up to the middle of one TB / CBG.

[0062] For example, in a case where the terminal 10 transmits feedback information while receiving a transport block, the feedback information can not be ACK or NACK, but can be soft information (soft information) equivalent to a likelihood (for example, a likelihood that a part of the transport block is correctly received, that is, an index that can be a part of the transport block is correctly received with a probability of 90%). In addition, the soft information can be calculated per time resource (for example, per one or a plurality of symbols), or can be a value calculated per frequency resource (for example, per one or a plurality of subcarriers), per frequency / time resource, or per information amount (for example, a specified number of bits). Also, the terminal 10 can generate and transmit soft information in accordance with one or a plurality of likelihoods (for example, a case where the likelihood exceeds a specified threshold value).

[0063] For example, the terminal 10 can generate feedback information such as channel information in accordance with a demodulation reference signal, and can generate feedback information such as channel information in accordance with another reference signal such as a channel estimation reference signal.

[0064] For example, the terminal 10 can modulate, encode, and transmit feedback information. Further, for example, the terminal 10 can transmit feedback information by mapping the feedback information to a sequence of a reference signal and / or a preamble.

[0065] For example, the terminal 10, in a case where the terminal 10 transmits information equivalent to NACK as feedback information, can include any one of the following or a combination of several of the following together with (or instead of) NACK / CSI reporting (CQI / RI / PMI).

[0066] -Beam report (example: index of another candidate beam, L1-RSRP measurement value, and the like)

[0067] -RV (Redundancy Version) request (example: information indicating which RV to retransmit

[0068] -SRS (Sounding Reference Signal) (example: in a case where an SRS is transmitted, the base station 20 interprets this as being equivalent to NACK, and corrects transmission parameters in accordance with a reception result of the SRS and wave propagation path reciprocity)

[0069] For example, a wireless resource (resource in the time domain and the frequency domain) used by the terminal 10 to transmit feedback information can be semi-statically set by RRC signaling or the like, can be set and activated by a MAC CE or the like, or can also be dynamically allocated by L1 signaling or the like.

[0070] For example, in a case where a wireless resource used by the terminal 10 to transmit feedback information is set by RRC signaling, the terminal 10 can use the wireless resource only within a specific period (for example, within a specific time slot) in a case where DL scheduling information is received by DCI. Here, the wireless resource set by RRC signaling can be one or a plurality of wireless resource candidates, and information indicating a wireless resource can be included in the DCI. In this case, the terminal 10 can select a wireless resource to use from among the one or a plurality of wireless resource candidates in accordance with the information indicating a wireless resource included in the DCI.

[0071] For example, in a case where a PUSCH is allocated to the terminal 10 as a resource for feedback information transmission, the terminal 10 can perform the following actions.

[0072] For example, the terminal 10 can also transmit a BSR (Buffer Status Report) through a MAC CE in a case where the terminal 10 transmits feedback information equivalent to ACK. Thus, the terminal 10 can notify the base station 20 of the amount of remaining data to be transmitted.

[0073] For example, the terminal 10 can also transmit a beam report and / or an RV request through a MAC CE in a case where the terminal 10 transmits feedback information equivalent to NACK.

[0074] Figure 8 is a diagram illustrating an example in which DL data reception and UL feedback transmission are performed at different timings. In the example of Figure 8 In the example of, reception of DL data is performed in slot 0, and then UL feedback is performed in slot 2.

[0075] Figure 9 is a diagram illustrating an example in which DL data reception and UL feedback transmission are performed simultaneously. In the example of Figure 9 In the example of, UL feedback transmission is performed for reception of a starting portion of DL data, UL feedback transmission is performed for reception of a first half of DL data, and UL feedback is performed for reception of the entire DL data. In this way, the base station 20 can receive UL feedback in the middle of transmission of DL data, and can change the MCS (Modulation and Coding Scheme), beam, and the like, applied in the subsequent transmission of DL data, in accordance with the received UL feedback.

[0076] (2. DL data reception + DL control information reception)

[0077] The terminal 10 can receive one or a plurality of continuous transport blocks and one or a plurality of control information associated with the transport blocks through the same channel (for example, the same PDSCH) or different channels (for example, the transport blocks can be received through a PDSCH, and the control information can be received through a PDCCH).

[0078] For example, the one or a plurality of control information can also be discontinuously configured at the start of channel transmission time, in the middle of channel transmission time, and at the end of channel transmission time.

[0079] For example, new control information (example: only a part of DCI) can also be defined. The terminal 10 can receive the new control information. For example, among the identifier of the DCI format, the resource information, the information associated with the transport block, the information associated with the Hybrid Automatic Repeat Request (HARQ), the information associated with the multi-antenna, and the information associated with the Physical Uplink Control Channel (PUCCH) included in the DCI, the control information including only the information associated with the transport block can be used as the new control information. Further, the control information configured at the start of the channel transmission time, the control information configured in the middle of the channel transmission time, and the control information configured at the end of the channel transmission time can be given the same identifier, or different identifiers. In addition, the information included in the control information configured at the start of the channel transmission time, the control information configured in the middle of the channel transmission time, and the control information configured at the end of the channel transmission time can be the same, or different. For example, all of the above information can be included in the initial control information, and part of the information such as the identifier indicating the initial control information, the identifier indicating the control information itself, and / or the information as a difference (for example, the information associated with the multi-antenna) can be included in the other control information.

[0080] For example, the base station 20 can transmit the control information as the control information for the TB or the CBG transmitted after the transmission timing thereof in the case where there are a plurality of transport blocks (TBs) or one transport block is configured by a plurality of code block groups (CBGs) in the case where the control information is transmitted to the terminal 10 at the same time as the DL data. Alternatively, the content transmitted by the initial DCI can be added and / or overwritten by the additional control information (for example, the updated value of the index of the Modulation and Coding Scheme (MCS)) related to a single TB or CBG.

[0081] For example, the base station 20 can modulate and encode the control information and transmit it. Further, the base station 20 can also transmit the control information by mapping the control information to the sequence of the reference signal or the like and transmitting the reference signal. In the case where the control information is transmitted by being modulated and encoded, the base station 20 can transmit it as a channel (for example, PDCCH) different from the channel (for example, PDSCH) in which the transport block is transmitted, or can transmit it by being separately encoded within the same channel and then being mapped (piggybacked).

[0082] Furthermore, for example, the terminal 10 can also transmit to the base station 20 whether or not the reception of the additional control information is included in the feedback. Furthermore, the feedback of whether or not the reception of the additional control information can be performed periodically, or aperiodically (for example, in accordance with a request from the base station). In addition, in a case where the additional control information (DCI) is not received, whether or not the reception of the additional control information can also be reported to the base station 20 as feedback information.

[0083] Furthermore, for example, the terminal 10 can perform data reception and additional control information reception on the same carrier, or can perform data reception and additional control information reception on different carriers. For example, in a case where the carrier on which the terminal 10 receives data is different from the carrier on which the terminal 10 receives the additional control information, the base station 20 (or the terminal 10) can set information indicating a correspondence relationship between the carrier on which the terminal 10 receives data and the carrier on which the terminal 10 receives the additional control information, and notify the terminal 10 (or the base station 20) of the set information. In addition, the correspondence relationship can also be specified in a specification.

[0084] The base station 20 can semi-statically set the resource for transmitting the control information to the terminal 10 by RRC signaling or the like. Additionally or alternatively, the base station 20 can also dynamically set the resource for transmitting the control information by other DCI. In a case where the base station 20 performs DL data transmission and DL control information transmission on the same carrier, for example, the base station 20 can perform rate matching on a channel (for example, PDSCH) on which a transport block is being transmitted, and set the resource for transmitting the control information. Additionally or alternatively, the base station 20 can also dynamically map the control information, and puncture the channel (for example, PDSCH) on which the transport block is being transmitted.

[0085] (3. UL data transmission + DL control information reception)

[0086] In a case where the terminal 10 is scheduled to transmit UL data (for example, PUSCH), the terminal 10 can receive one or more control information associated with the transport block while transmitting one or more consecutive transport blocks. For example, the carrier on which the terminal 10 transmits data can be the same as or different from the carrier on which the terminal 10 receives the control information. In a case where the carrier on which the terminal 10 transmits data is different from the carrier on which the terminal 10 receives the control information, the base station 20 can set information indicating a correspondence relationship between the carrier on which the terminal 10 transmits data and the carrier on which the terminal 10 receives the control information, and notify the terminal 10 of the set information.

[0087] For example, the one or more control information can also be discontinuously configured at the beginning of the channel transmission time, in the middle of the channel transmission time, and at the end of the channel transmission time.

[0088] For example, new control information (example: only a part of DCI) can also be defined. The terminal 10 can receive this new control information. For example, among the identifier of the DCI format, the resource information, the information associated with the transport block, the information associated with the Hybrid Automatic Repeat Request (HARQ), the information associated with the multi-antenna, and the information associated with the Physical Uplink Control Channel (PUCCH) included in the DCI, the control information including only the information associated with the transport block can be used as the new control information. Furthermore, the same identifier can be given to the control information configured at the start of the channel transmission time, the control information configured in the middle of the channel transmission time, and the control information configured at the end of the channel transmission time, or different identifiers can be given. In addition, the information included in the control information configured at the start of the channel transmission time, the control information configured in the middle of the channel transmission time, and the control information configured at the end of the channel transmission time can be the same, or can be different. For example, all of the above information can be included in the initial control information, and part of the information such as the identifier indicating the initial control information, the identifier indicating the control information itself, and / or the information as a difference (for example, the information associated with the multi-antenna) can be included in the other control information.

[0089] For example, in a case where the base station 20 transmits control information to the terminal 10 while receiving UL data, in a case where there are a plurality of transport blocks (TBs) of the UL data, or in a case where one transport block of the UL data is configured by a plurality of code block groups (CBGs), the control information can be transmitted as control information for the TB or the CBG transmitted after the transmission timing of the terminal 10, or the contents of the information transmitted by the initial DCI can be added and / or overwritten by additional control information (for example, an updated value of the index of the Modulation and Coding Scheme (MCS)) related to a single TB or CBG.

[0090] For example, the base station 20 can modulate and encode the control information and transmit it. Furthermore, the base station 20 can also transmit the control information by mapping the control information to a sequence of a reference signal or the like and transmitting the reference signal.

[0091] Furthermore, for example, the terminal 10 can also transmit to the base station 20 whether or not the reception of the additional control information is included in the UL data. Furthermore, the feedback of whether or not the reception of the additional control information is performed periodically, or can be performed aperiodically (for example, according to a request from the base station). In addition, in a case where the additional control information (DCI) is not received, the terminal 10 can also report to the base station 20 whether or not the reception of the additional control information is performed as feedback information.

[0092] The base station 20 can semi-statically set the resource for transmitting the control information to the terminal 10 by RRC signaling or the like. Additionally or alternatively, the base station 20 can dynamically set the resource for transmitting the control information by other DCI.

[0093] (4. UL data transmission + UL control information transmission)

[0094] In a case where the terminal 10 is scheduled to transmit UL data (e.g., PUSCH), the terminal 10 can transmit one or more pieces of control (feedback) information associated with the transmission block while transmitting one or more consecutive transmission blocks.

[0095] For example, in a case where the terminal 10 receives additional control information (DCI) in the middle of the transmission of the PUSCH, the terminal 10 can report to the base station 20 whether or not the additional control information is received as feedback information. In addition, the feedback of whether or not the additional control information is received can be performed periodically or aperiodically (e.g., in response to a request from the base station). In addition, in a case where the additional control information (DCI) is not received, the terminal 10 can report to the base station 20 whether or not the additional control information is received as feedback information.

[0096] For example, in a case where the terminal 10 moves and / or rotates and the like in the middle of the transmission of the PUSCH and needs to change the beam, the terminal 10 can report to the base station 20 information about the changed beam as feedback to the base station 20.

[0097] For example, the carrier on which the terminal 10 transmits data and the carrier on which the terminal 10 transmits control information can be the same or different. In a case where the carrier on which the terminal 10 transmits data and the carrier on which the terminal 10 transmits control information are different, the base station 20 (or the terminal 10) can set information indicating the correspondence between the carrier on which the terminal 10 transmits data and the carrier on which the terminal 10 transmits control information, and notify the terminal 10 (or the base station 20) of the set information. In addition, the correspondence can be specified in the specification.

[0098] For example, new feedback information can be specified as feedback information. For example, the terminal 10 can transmit only a part of the existing feedback information as feedback information.

[0099] For example, the terminal 10 can modulate and / or encode the feedback information and transmit the same. In addition, for example, the terminal 10 can transmit the feedback information by mapping the feedback information to the sequence of the reference signal and / or the preamble.

[0100] For example, the terminal 10, in a case where the terminal 10 transmits information equivalent to NACK as feedback information, can include any one or several combinations of the following, together with (or instead of) NACK / CSI report (CQI / RI / PMI).

[0101] -Beam report (example: index of other candidate beams, L1-RSRP measurement value, and the like)

[0102] -RV (Redundancy Version) request (example: information indicating which RV to retransmit

[0103] -SRS (Sounding Reference Signal) (example: in a case where SRS is transmitted, the base station 20 interprets this as being equivalent to NACK, and corrects the transmission parameters based on the reception result of the SRS and the wave propagation path reciprocity)

[0104] For example, the radio resources (resources in the time domain and the frequency domain) used by the terminal 10 to transmit feedback information can be semi-statically set by RRC signaling or the like, can be set and activated by a MAC CE or the like, or can also be dynamically allocated by L1 signaling or the like.

[0105] For example, in a case where the radio resources used by the terminal 10 to transmit feedback information are set by RRC signaling, the terminal 10 can use the radio resources only within a specific period (for example, within a specific time slot) in a case where UL scheduling information is received by DCI.

[0106] For example, in a case where PUSCH is allocated to the terminal 10 as a resource for transmitting feedback information, the terminal 10 can perform the following actions.

[0107] For example, the terminal 10, in a case where the terminal 10 transmits feedback information equivalent to ACK, can transmit a BSR (Buffer Status Report) by a MAC CE. Thus, the terminal 10 can notify the base station 20 of the amount of remaining data to be transmitted.

[0108] For example, the terminal 10, in a case where the terminal 10 transmits feedback information equivalent to NACK, can transmit a beam report and / or a redundancy version request (RV request) by a MAC CE.

[0109] (5. UE capability: UE capability)

[0110] For example, the terminal 10 can also report to the base station 20, as the capability information, whether or not it is able to transmit the feedback information such as the channel quality information, the retransmission request, and the like generated based on the information while receiving one or a plurality of continuous transmission blocks.

[0111] For example, the terminal 10 can also report to the base station 20, as the capability information, whether or not it is able to receive one or a plurality of continuous transmission blocks through the same or different channels or signals, and one or a plurality of control information associated with the transmission blocks.

[0112] For example, the terminal 10 can report to the base station 20, as the capability information, whether or not it is able to receive the control information such as the retransmission request associated with the transmission while transmitting one or a plurality of continuous transmission blocks.

[0113] For example, the terminal 10 can also report to the base station 20, as the capability information, whether or not it is able to transmit one or a plurality of continuous transmission blocks through the same or different channels or signals, and one or a plurality of control information associated with the transmission blocks. For example, the terminal 10 can transmit to the base station 20 the capability information related to the simultaneous transmission, the simultaneous reception, or the simultaneous transmission and reception described in the embodiments.

[0114] For example, the terminal 10 can also report to the base station 20, as the UE capability, whether or not it is able to cope with the simultaneous transmission and reception (Full Duplex) in the same carrier, and / or the combination of carriers in which it is able to cope with the simultaneous transmission and reception.

[0115] For example, in a case where the carrier in which the simultaneous transmission and reception of the feedback and / or the data of the control information is performed is different from the carrier in which the data is transmitted and received, a plurality of candidate carriers can be set, and switching / backoff can be performed in a case where the communication state of the initially scheduled carrier is not good, and the like.

[0116] Instead, feedback and / or control information can be simultaneously transmitted and / or received in multiple carriers. Inter-carrier frequency hopping can also be performed in a set or specified pattern, either instead or in addition. (1. DL data reception + UL feedback transmission), (2. DL data reception + DL control information reception), (3. UL data transmission + DL control information reception), (4. UL data transmission + UL control information transmission), and (5. UE capability) can be used individually or in combination. For example, in a case where (1. DL data reception + UL feedback transmission) and (2. DL data reception + DL control information reception) are combined, the terminal 10 can also receive one or more control information associated with the transport block in the same channel or a different channel while receiving a downlink channel (e.g., PDCCH or PDSCH) containing one or more transport blocks, and transmit feedback information such as a retransmission request generated based on the reception of the transport block.

[0117] (Functional Configuration)

[0118] Next, a functional configuration example of the terminal 10 and the base station 20 that execute the processing actions explained above will be described. The terminal 10 and the base station 20 have all the functions explained in the present embodiment. However, the terminal 10 and the base station 20 can have a part of all the functions explained in the present embodiment. In addition, the terminal 10 and the base station 20 can be collectively referred to as a communication device.

[0119] (Terminal)

[0120] Figure 10 is a diagram showing an example of the functional configuration of the terminal 10. As shown in Figure 10 , the terminal 10 has a transmission section 110, a reception section 120, and a control section 130. Figure 10 The functional configuration shown in the drawing is merely an example. As long as the actions of the present embodiment can be executed, the functional division and the names of the functional sections can be arbitrary. In addition, the transmission section 110 can be referred to as a transmitter, and the reception section 120 can be referred to as a receiver.

[0121] The transmission section 110 generates a transmission signal from transmission data and transmits the transmission signal in a wireless manner. In addition, the transmission section 110 can form one or a plurality of beams. The reception section 120 receives various signals in a wireless manner and acquires higher layer signals from the received physical layer signals. In addition, the reception section 120 includes a measurement section that performs measurement of a signal to be received and thereby acquires a reception power and the like.

[0122] The control section 130 performs control of the terminal 10. In addition, the functions of the control section 130 related to transmission can be included in the transmission section 110, and the functions of the control section 130 related to reception can be included in the reception section 120.

[0123] For example, the transmission section 110, the reception section 120, and the control section 130 of the terminal 10 can perform the UL feedback transmission in the middle of the DL data reception. The reception section 120 and the control section 130 of the terminal 10 can perform the DL control information reception in the middle of the DL data reception. The transmission section 110, the reception section 120, and the control section 130 of the terminal 10 can perform the DL control information reception in the middle of the UL data transmission. The transmission section 110 and the control section 130 of the terminal 10 can perform the UL control information transmission in the middle of the UL data transmission.

[0124] <base station 20>

[0125] Figure 11 is a diagram showing an example of a functional structure of the base station 20. As shown in Figure 11 , the base station 20 has a transmission section 210, a reception section 220, and a control section 230. Figure 11 The functional structure shown in FIG. 10 is merely an example. As long as the actions of the present embodiment can be executed, the functional division and the names of the functional sections can be arbitrary. In addition, the transmission section 210 can be referred to as a transmitter, and the reception section 220 can be referred to as a receiver.

[0126] The transmission section 210 includes a function of generating a signal to be transmitted to the terminal 10 side and transmitting the signal in a wireless manner. The reception section 220 includes a function of receiving various signals transmitted from the terminal 10 and acquiring, for example, higher layer information from the received signals. In addition, the reception section 220 includes a measurement section that performs measurement of a signal to be received and thereby acquires a measurement value of a reception power or the like.

[0127] The control section 230 performs control of the base station 20. In addition, the function of the control section 230 related to transmission can be included in the transmission section 210, and the function of the control section 230 related to reception can be included in the reception section 220.

[0128] For example, the transmission section 210, the reception section 220, and the control section 230 of the base station 20 can perform the UL feedback reception in the middle of the DL data transmission. The transmission section 210 and the control section 230 of the base station 20 can perform the DL control information transmission in the middle of the DL data transmission. The transmission section 210, the reception section 220, and the control section 230 of the base station 20 can perform the DL control information transmission in the middle of the UL data reception. The reception section 220 and the control section 230 of the base station 20 can perform the UL control information reception in the middle of the UL data reception.

[0129] <hardware structure>

[0130] The block diagram used in the description of the above-described embodiments Figure 10-11) shows blocks in units of functions. These functional blocks (structural units) are realized by any combination of hardware and / or software. Furthermore, the means of realizing each functional block are not particularly limited. That is, each functional block can be realized by one device in which a plurality of elements are physically and / or logically combined, or two or more devices that are physically and / or logically separated can be directly and / or indirectly (for example, through wired and / or wireless means) connected and realized by the plurality of devices.

[0131] Furthermore, for example, the terminal 10 and the base station 20 in one embodiment of the present application can function as a computer that performs the processing of the present embodiment. Figure 12 is a diagram showing an example of the hardware structure of the terminal 10 and the base station 20 of the present embodiment. The terminal 10 and the base station 20 described above can each be configured as a computer device that physically includes a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like.

[0132] In addition, in the following description, the expression "device" can be replaced with "circuit", "equipment", "unit", or the like. The hardware structure of the terminal 10 and the base station 20 can be configured to include one or more of each of the devices illustrated by 1001 to 1006, or can be configured not to include a part of the devices.

[0133] Each function in the terminal 10 and the base station 20 is realized by reading a predetermined software (program) into the processor 1001, the memory 1002, and the like, and causing the processor 1001 to perform an operation and control the communication of the communication device 1004, and the reading and / or writing of data in the memory 1002 and the storage 1003.

[0134] The processor 1001 controls the entire computer by causing an operating system to operate, for example. The processor 1001 can also be configured by a central processing device (CPU: Central Processing Unit) that includes an interface with a peripheral device, a control device, an arithmetic device, a register, and the like.

[0135] Furthermore, the processor 1001 reads a program (program code), a software module, or data from the storage 1003 and / or the communication device 1004 to the memory 1002, and performs various processing based on this. As the program, a program that causes a computer to perform at least a part of the operations described in the above-described embodiments is used. For example, the processing of the present embodiment can be realized by a control program stored in the memory 1002 and operated by the processor 1001 Figure 10The illustrated terminal 10 includes a transmission section 110, a reception section 120, and a control section 130. Further, for example, the transmission section 110, the reception section 120, and the control section 130 of the terminal 10 can be implemented by a control program stored in the memory 1002 and executed by the processor 1001 Figure 11 The illustrated base station 20 includes a transmission section 210, a reception section 220, and a control section 230. Although the above-described various processes are described as being executed by one processor 1001, the above-described various processes can be executed by two or more processors 1001 simultaneously or sequentially. The processor 1001 can be mounted on one or more chips. In addition, the program can be transmitted from a network via a telecommunication line.

[0136] The memory 1002 is a computer-readable recording medium, and can be constituted by at least one of, for example, a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), a RAM (Random Access Memory), and the like. The memory 1002 can also be referred to as a register, a cache, a main memory, and the like. The memory 1002 can hold a program (program code), a software module, and the like that can be executed in order to implement the processes of one embodiment of the present application.

[0137] The storage 1003 is a computer-readable recording medium, and can be constituted by at least one of, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (for example, a compact disk, a digital versatile disk, a Blu-ray (registered trademark) disk, an intelligent disk, a flash memory (for example, a card, a stick, a key drive), a Floppy (registered trademark) disk, a magnetic stripe, and the like. The storage 1003 can also be referred to as an auxiliary storage device. The above-described storage medium can be, for example, a database, a server, and the like, or another appropriate medium that includes the memory 1002 and / or the storage 1003.

[0138] The communication device 1004 is hardware (a transceiver device) for communication between computers via a wired and / or wireless network, and can also be referred to as a network device, a network controller, a network card, a communication module, and the like. For example, the transmission section 110 and the reception section 120 of the terminal 10 can be implemented by the communication device 1004. Further, the transmission section 210 and the reception section 220 of the base station 20 can also be implemented by the communication device 1004.

[0139] The input device 1005 is an input device (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, or the like) that receives input from the outside. The output device 1006 is an output device (e.g., a display, a speaker, an LED lamp, or the like) that performs output to the outside. In addition, the input device 1005 and the output device 1006 can also be integrally configured (e.g., a touch panel).

[0140] Further, the processor 1001 and the memory 1002 and the like are connected through a bus 1007 for communication of information. The bus 1007 can be configured by a single bus, or can be configured by different buses between the devices.

[0141] Further, the terminal 10 and the base station 20 can be configured to include a microprocessor, a digital signal processor (DSP), an ASIC, a PLD, a FPGA, or the like, and can realize a part or all of the functional blocks by the hardware. For example, the processor 1001 can be mounted by at least one of the hardware.

[0142] (Summary of Embodiments)

[0143] The present specification discloses at least the following terminal and base station.

[0144] A terminal includes a transmission section that transmits a transport block, and a reception section that receives control information associated with a part of an entirety of the transport block at a timing at which the part of the entirety of the transport block is transmitted.

[0145] According to the above-described configuration, the terminal can reduce a time gap accompanying control by processing transmission of data and reception of control information in parallel.

[0146] The reception section can receive a plurality of control information discontinuously arranged in a time direction of the transport block in the transmission of the transport block by the transmission section.

[0147] According to the above-described configuration, it is possible to change a parameter to be applied for each part of a transport block.

[0148] The control information can be control information for another part of the entirety of the transport block transmitted after transmission of the part of the entirety of the transport block.

[0149] According to the above-described configuration, the terminal can change the parameter for transmitting the remaining portion of the transport block to a more appropriate parameter.

[0150] The carrier on which the transmission section receives the transport block and the carrier on which the reception section receives the control information can also be different.

[0151] According to the above-described configuration, even in the case of TDD, the reception processing of data and the transmission processing of feedback information can be processed in parallel.

[0152] A base station including a reception section that receives a transport block and a transmission section that transmits control information associated with a portion of the entire transport block in the reception of the transport block by the reception section.

[0153] According to the above-described configuration, the base station can reduce the time gap accompanying control by processing the reception processing of data and the transmission processing of control information in parallel.

[0154] (Supplement to Embodiments)

[0155] The above describes an embodiment of the present application, but the disclosed application is not limited to such an embodiment, and a person skilled in the art will understand various modifications, alterations, alternatives, substitutions, and the like. A specific numerical example is described in order to facilitate understanding of the application, but as long as not specifically indicated, the numerical values are only one example, and an appropriate arbitrary value can be used. The division of items in the above description is not essential to the present application, and items described in two or more items can be used in combination as needed, or items described in one item can be applied to items described in another item (as long as not contradictory). The boundary of a functional block or processing block in a functional block diagram does not necessarily correspond to the boundary of a physical component. The actions of multiple functional blocks can be performed by one physical component, or the actions of one functional block can be performed by multiple physical components. As for the processing procedure described in the embodiments, the order of processing can be changed without contradiction. The terminal 10 and the base station 20 are described using a functional block diagram for convenience of description of processing, but such devices can also be implemented by hardware, software, or a combination thereof. Software by which the processor possessed by the terminal 10 acts according to the embodiment of the present application and software by which the processor possessed by the base station 20 acts according to the embodiment of the present application can each be stored in a random access memory (RAM), a flash memory, a read only memory (ROM), an EPROM, an EEPROM, a register, a hard disk (HDD), a removable disk, a CD-ROM, a database, a server, and another appropriate arbitrary storage medium.

[0156] The notification of the information is not limited to the forms / embodiments described in this specification, and can be performed by other methods. For example, the notification of the information can be performed by physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), higher layer signaling (e.g., RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or a combination of these. Furthermore, the RRC signaling can also be referred to as an RRC message, and for example, can be an RRC connection setup message, an RRC connection reconfiguration message, or the like.

[0157] The forms / embodiments described in this specification can also be applied to systems utilizing LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G, 5G, FRA (Future Radio Access), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth (registered trademark), other appropriate systems, and / or next-generation systems extended therefrom.

[0158] For the processes, timing, flow, and the like of the forms / embodiments described in this specification, the order can be changed without contradiction. For example, for the methods described in this specification, the elements of the various steps are prompted by the order of the examples, but are not limited to the specific order prompted.

[0159] In the present specification, certain actions performed by the base station 20 are sometimes also performed by an upper node thereof according to the situation. It should be clear that, in a network constituted by one or a plurality of network nodes having the base station 20, various actions performed for communication with the terminal 10 can be performed by the base station 20 and / or other network nodes than the base station 20 (for example, consider an MME or an S-GW or the like, but not limited thereto). In the above, a case where the other network nodes than the base station 20 are one is exemplified, but it can also be a combination of a plurality of other network nodes (for example, an MME and an S-GW).

[0160] Each form / implementation described in the present specification can be used alone or in combination, and can also be switched in use according to execution.

[0161] For those skilled in the art, the terminal 10 is sometimes also called a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other appropriate terminology.

[0162] For those skilled in the art, the base station 20 is sometimes also called an NB (NodeB), an eNB (enhanced NodeB), a base station (Base Station), a gNB, or some other appropriate terminology.

[0163] A bandwidth part (BWP: Bandwidth Part) (may also be called a partial bandwidth or the like) can also indicate a subset of contiguous common RBs (resource blocks) for a certain numerology in a certain carrier. Here, the common RBs can be determined by the index of the RBs with reference to a common reference point of the carrier. The PRB can be defined in a certain BWP and numbered within the BWP.

[0164] A BWP can include a BWP for UL (UL BWP) and a BWP for DL (DL BWP). One or a plurality of BWPs can be configured for a UE within one carrier.

[0165] At least one of the configured BWPs can be active, and a case where the UE transmits / receives a predetermined signal / channel outside the active BWP can not be assumed. In addition, "cell", "carrier", and the like in the present disclosure can be replaced with "BWP".

[0166] One or more frames can constitute a radio frame in the time domain. In the time domain, one or more of the frames can be referred to as a subframe. One or more of the subframes can further constitute a slot in the time domain. The subframe can be a fixed length of time regardless of numerology (e.g., 1 ms). Numerology can be communication parameters applied to at least one of transmission and reception of a certain signal or channel. Numerology can represent at least one of, for example, subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame structure, specific filtering processing by a transceiver in the frequency domain, specific windowing processing by the transceiver in the time domain, and the like. A slot can be constituted by one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbols, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols, and the like) in the time domain. The slot can be a time unit based on numerology. The slot can include a plurality of mini-slots. Each of the mini-slots can be constituted by one or more symbols in the time domain. Also, the mini-slot can be referred to as a sub-slot. The mini-slot can be constituted by a smaller number of symbols than the slot. A PDSCH (or PUSCH) transmitted in a time larger than the mini-slot can be referred to as PDSCH (or PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using the mini-slot can be referred to as PDSCH (or PUSCH) mapping type B. The radio frame, the subframe, the slot, the mini-slot, and the symbol all represent a unit of time when a transmission signal is transmitted. The radio frame, the subframe, the slot, the mini-slot, and the symbol can each use a corresponding other designation. For example, 1 subframe can be referred to as a transmission time interval (TTI), a plurality of consecutive subframes can also be referred to as a TTI, 1 slot or 1 mini-slot can also be referred to as a TTI. That is, at least one of the subframe and the TTI can be a subframe (1 ms) in the existing LTE, can be a period shorter than 1 ms (e.g., 1-13 symbols), or can be a period longer than 1 ms. In addition, the unit representing the TTI can not be referred to as a subframe, but as a slot, a mini-slot, or the like.

[0167] Here, the TTI refers to, for example, a minimum time unit of scheduling in wireless communication. For example, in the LTE system, the base station performs scheduling in which radio resources (a frequency bandwidth, transmission power, and the like that can be used in each user terminal) are allocated to each user terminal in units of TTIs. Note that the definition of the TTI is not limited to this. The TTI can be a transmission time unit of a channel-encoded data packet (transport block), a code block, a codeword, or the like, or can be a processing unit of scheduling, link adaptation, or the like. In addition, when the TTI is given, the time interval (for example, the number of symbols) in which a transport block, a code block, a codeword, or the like is actually mapped can be shorter than the TTI. In addition, in a case where one slot or one mini-slot is referred to as a TTI, one or more TTIs (that is, one or more slots or one or more mini-slots) can constitute a minimum time unit of scheduling. Furthermore, the number of slots (the number of mini-slots) that constitute the minimum time unit of scheduling can be controlled. A TTI having a time length of 1 ms is also referred to as a normal TTI (TTI in LTE Rel. 8-12), a normal TTI (normal TTI), a long TTI (long TTI), a normal subframe, a normal subframe (normal subframe), a long (long) subframe, a slot, or the like. A TTI shorter than the normal TTI can be referred to as a shortened TTI, a short TTI (short TTI), a partial TTI (partial or fractional TTI), a shortened subframe, a short (short) subframe, a mini-slot, a sub-slot, a slot, or the like. In addition, for a long TTI (long TTI) (for example, a normal TTI, a subframe, or the like), it can be understood as a TTI having a time length exceeding 1 ms, and for a short TTI (short TTI) (for example, a shortened TTI, or the like), it can be understood as a TTI having a TTI length shorter than the long TTI (long TTI) and a TTI length of 1 ms or more.

[0168] A resource block (RB) is a resource allocation unit of the time domain and the frequency domain, and can contain one or more contiguous subcarriers in the frequency domain. The number of subcarriers contained in the RB can be the same regardless of numerologies, for example, can be 12. The number of subcarriers contained in the RB can also be determined according to numerologies. In addition, the time domain of the RB can contain one or more symbols, can be the length of 1 slot, 1 mini-slot, 1 subframe, or 1 TTI. One TTI, one subframe, etc. can be respectively composed of one or more resource blocks. In addition, one or more RBs can be referred to as a physical resource block (PRB), a subcarrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, etc. In addition, a resource block can be composed of one or more resource elements (REs). For example, one RE can be a wireless resource area of one subcarrier and one symbol.

[0169] The terms "determining" and "deciding" as used in this specification are sometimes used in the sense of "ascertaining". Determining or deciding can include, for example, judging, calculating, computing, processing, deriving, investigating, looking up (e.g., looking up in a table, a database or another data structure), ascertaining, and the like. Determining or deciding can also include receiving (e.g., receiving information), transmitting (e.g., transmitting information), inputting, outputting, accessing (e.g., accessing data in a memory), and the like. Determining or deciding can further include resolving, selecting, choosing, establishing, comparing, and the like. Thus, "determining" or "deciding" can include any action that is typically performed by a computer or other processor that is used to make a decision.

[0170] The use of "according to" in the present specification is not "only according to" unless otherwise specified. In other words, "according to" means both "only according to" and "at least according to".

[0171] The terms "include", "including", and variations thereof, as used in the present specification, are meant to be inclusive in that a statement that something is included also means that something is not excluded. Also, the use of the term "or" in the present specification is meant not to be exclusive.

[0172] Throughout the disclosure, in the case where an article is added due to translation, such as a, an, and the in English, as to the article, it can also include a plurality, if it is not explicitly indicated from the context that it is not so.

[0173] The present application has been described in detail above, but it should be apparent to those skilled in the art that the present application is not limited to the embodiments described in the present specification. The present application can be implemented as modifications and changes without departing from the spirit and scope of the present application defined by the recitations of the claims. Therefore, the recitations of the present specification are intended to be illustrative, not restrictive. The present application is not intended to be limited to the embodiments described in the present specification.

[0174] Label Explanation

[0175] 10: terminal

[0176] 110: transmission unit

[0177] 120: reception unit

[0178] 130: control unit

[0179] 20: base station

[0180] 210: transmission unit

[0181] 220: reception unit

[0182] 230: control unit

[0183] 1001: processor

[0184] 1002: memory

[0185] 1003: storage

[0186] 1004: communication device

[0187] 1005: input device

[0188] 1006: output device

Claims

1. A terminal having: a transmission section that transmits a transport block; and a reception section that receives control information associated with a part of an entirety of the transport block at a timing at which the part is transmitted, the control information being used to optimize parameters for reception of a remaining part of the entirety of the transport block, the control information including information indicating a correspondence relationship between a carrier on which the transport block is transmitted and a carrier on which the control information is received by the reception section.

2. The terminal according to claim 1, wherein the reception section receives a plurality of control information in the transmission of the transport block by the transmission section, the plurality of control information being discontinuously arranged in a time direction of the transport block.

3. The terminal according to claim 1, wherein the control information is control information for another part of the entirety of the transport block that is transmitted after the transmission of the part of the entirety of the transport block.

4. The terminal according to claim 1, wherein the transmission section transmits the carrier on which the transport block is transmitted and the carrier on which the control information is received by the reception section are different.

5. A base station having: a reception section that receives a transport block; and a transmission section that transmits control information associated with a part of an entirety of the transport block in the reception of the transport block by the reception section, the control information being used to optimize parameters for reception of a remaining part of the entirety of the transport block, the control information including information indicating a correspondence relationship between a carrier on which the transport block is received and a carrier on which the control information is transmitted by the transmission section. ​ ​ ​ ​

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