Terminal, base station, and communication method

Abstract

A terminal is provided with: a control unit that assumes that, in discontinuous frequency resources comprising a plurality of continuous frequency resources, retransmission control processes are managed for each of the discontinuous frequency resources; and assuming that the number of the retransmission control process is defined in the discontinuous frequency resource, or a number associated with the continuous frequency resource is defined in the discontinuous frequency resource; and a transmission unit that transmits, to a base station, the terminal capability including the maximum number of retransmission control processes in the discontinuous frequency resources.

Description

TECHNICAL FIELD

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

[0002] In the 3GPP (registered trademark) (3rd Generation Partnership Project: 3rd Generation Partnership Project), in order to achieve further large capacity of system capacity, further high speed of data transmission speed, further low delay in a wireless interval, and the like, research on a wireless communication scheme (hereinafter, the wireless communication scheme will be referred to as "NR") called 5G or NR (New Radio: New Radio) is being conducted. In 5G, in order to meet the requirement conditions of achieving a throughput of 10 Gbps or more and making the delay in the wireless interval 1 ms or less, research on various wireless technologies and network architectures is being conducted (for example, Non-Patent Literature 1 and Non-Patent Literature 2).

[0003] In NR, a carrier aggregation (CA) function of using a wideband domain for securing data resources is supported also after LTE. In the carrier aggregation function, by bundling a plurality of component carriers (CCs), it is possible to secure a wideband domain data resource.

[0004] PRIOR ART DOCUMENT

[0005] NON-PATENT LITERATURE

[0006] Non-Patent Literature 1: 3GPP TS 38.300 V17.5.0 (2023-06)

[0007] Non-Patent Literature 2: 3GPP TS 38.401 V17.5.0 (2023-06) SUMMARY

[0008] PROBLEMS TO BE SOLVED BY THE INVENTION

[0009] In the carrier aggregation function, in order to more flexibly and efficiently perform resource allocation, a method for efficiently configuring non-continuous frequency resources by aggregating continuous frequency resources is being studied. However, the processing involved in the transmission block when the non-continuous frequency resources are configured by aggregating the continuous frequency resources has not been specified. For example, for a physical channel that spans a plurality of continuous frequency resources in the non-continuous frequency resources, the processing related to the generation and mapping of the transmission block has not been specified.

[0010] The present application was made in view of the above-described problems, and aims to transmit and receive data using non-continuous frequency resources in the frequency domain in wireless communication.

[0011] Means for solving the problem

[0012] According to the disclosed technology, there is provided a terminal having: a control section that assumes that a retransmission control process is managed per each non-continuous frequency resource in a non-continuous frequency resource constituted by a plurality of continuous frequency resources, and that assumes that a number of the retransmission control process is defined in the non-continuous frequency resource or a number associated with the continuous frequency resource is defined in the non-continuous frequency resource; and a transmission section that transmits, to a base station, a terminal capability including a maximum number of the retransmission control process in the non-continuous frequency resource.

[0013] Effects of the Invention

[0014] According to the disclosed technology, in wireless communication, it is possible to use a non-continuous frequency resource in a frequency domain to transmit and receive data. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a diagram showing a structure example of a wireless communication system in an embodiment of the present application.

[0016] Figure 2 is a diagram showing an example (1) of a structure of a virtual CC related to an embodiment of the present application.

[0017] Figure 3 is a diagram showing an example (2) of a structure of a virtual CC related to an embodiment of the present application.

[0018] Figure 4 is a diagram showing an example (1) of mapping of a transport block related to an embodiment of the present application.

[0019] Figure 5 is a diagram showing an example of method 1 of mapping of a transport block related to an embodiment of the present application.

[0020] Figure 6 is a diagram showing an example of method 2 of mapping of a transport block related to an embodiment of the present application.

[0021] Figure 7 is a diagram showing an example of method 3 of mapping of a transport block related to an embodiment of the present application.

[0022] Figure 8 is a diagram showing an example (2) of mapping of a transport block related to an embodiment of the present application.

[0023] Figure 9 is a diagram showing an example of grouping of a virtual CC related to an embodiment of the present application.

[0024] Figure 10FIG. 1 is a diagram showing an example of a functional configuration of a base station 10 in an embodiment of the present application.

[0025] Figure 11 FIG. 2 is a diagram showing an example of a functional configuration of a terminal 20 in an embodiment of the present application.

[0026] Figure 12 FIG. 3 is a diagram showing an example of a hardware configuration of the base station 10 or the terminal 20 in an embodiment of the present application.

[0027] Figure 13 FIG. 4 is a diagram showing an example of a configuration of a vehicle 2001 in an embodiment of the present application. DETAILED DESCRIPTION

[0028] Hereinafter, embodiments of the present application will be described with reference to the accompanying drawings. Note that the embodiments described below are merely examples, and the embodiments to which the present application is applied are not limited to the following embodiments.

[0029] In the operation of the wireless communication system in the embodiment of the present application, a prior art is appropriately used. The prior art is, for example, the existing LTE, but is not limited to the existing LTE. Further, unless otherwise specified, the term "LTE" used in this specification has a broad meaning including LTE-Advanced and a mode after LTE-Advanced (for example: NR).

[0030] Furthermore, in the following description of the embodiments of the present application, the terms SS (Synchronization Signal), PSS (Primary SS), SSS (Secondary SS), PBCH (Physical broadcast channel), PRACH (Physical random access channel), PDCCH (Physical Downlink Control Channel), PDSCH (Physical Downlink Shared Channel), PUCCH (Physical Uplink Control Channel), PUSCH (Physical Uplink Shared Channel), and the like, which are used in the existing LTE, are used. These are for ease of description, and the same signals, functions, and the like can be referred to by other names. Furthermore, the above terms in NR correspond to NR-SS, NR-PSS, NR-SSS, NR-PBCH, NR-PRACH, and the like. However, even for signals for NR, "NR-" is not necessarily explicitly described.

[0031] Furthermore, in the embodiments of the present application, the duplexing method can be a TDD (Time Division Duplex) method, an FDD (Frequency Division Duplex) method, or another method (for example, a flexible duplexing method).

[0032] Furthermore, in the embodiments of the present application, "configuring" a radio parameter or the like can be pre-configuring a predetermined value, or can be configuring a radio parameter notified from the base station 10 or the terminal 20.

[0033] Figure 1 is a diagram illustrating an example of the structure of a wireless communication system in the embodiments of the present application. As shown in Figure 1 the wireless communication system in the embodiments of the present application includes the base station 10 and the terminal 20. In Figure 1 one base station 10 and one terminal 20 are each shown, but this is merely an example, and there can be a plurality of each.

[0034] The base station 10 is a communication device that provides one or more cells and performs wireless communication with the terminal 20. 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 (Orthogonal Frequency Division Multiplexing) symbols, and the frequency domain can be defined by a number of subcarriers or a number of resource blocks. The base station 10 transmits a synchronization signal and system information to the terminal 20. The synchronization signal is, for example, an NR-PSS and an NR-SSS. The system information is transmitted by, for example, an NR-PBCH, and is also referred to as broadcast information. The synchronization signal and the system information can also be referred to as an SSB (SS / PBCH block). As Figure 1 indicated, the base station 10 transmits a control signal or data to the terminal 20 through a DL (Downlink), and receives a control signal or data from the terminal 20 through a UL (Uplink). Both the base station 10 and the terminal 20 are capable of performing beamforming for transmission and reception of signals. In addition, both the base station 10 and the terminal 20 are capable of applying MIMO (Multiple Input Multiple Output) based communication to the DL or the UL. In addition, both the base station 10 and the terminal 20 can also communicate via a secondary cell (SCell) and a primary cell (PCell) based on CA (Carrier Aggregation). Also, the terminal 20 can communicate via a primary cell of the base station 10 and a primary SCG cell (PSCell) of another base station 10 based on DC (Dual Connectivity).

[0035] The terminal 20 is a communication device such as a smartphone, a mobile phone, a tablet, a wearable terminal, a communication module for M2M (Machine-to-Machine), or the like, which has a wireless communication function. As Figure 1 indicated, the terminal 20 receives a control signal or data from the base station 10 through a DL, and transmits a control signal or data to the base station 10 through a UL, thereby utilizing various communication services provided by a wireless communication system. In addition, the terminal 20 receives various reference signals transmitted from the base station 10, and performs measurement of a propagation path quality based on a reception result of the reference signals.

[0036] In addition, in LTE and NR, a carrier aggregation function of using a wideband domain for securing data resources is supported. In the carrier aggregation function, by bundling a plurality of component carriers, it is possible to secure a data resource of a wideband domain. For example, by bundling a plurality of 20 MHz bandwidths, it is possible to use a width of 100 MHz.

[0037] In the conventional carrier aggregation function, data resources are scheduled individually for the bundled multiple component carriers, and there is a problem of large resource allocation overhead.

[0038] Here, a method of allocating resources in a scheduling unit different from a component carrier, and a terminal that allocates resources in a scheduling unit different from a component carrier are described.

[0039] A framework of scheduling or aggregation in a granularity different from a component carrier is defined as frequency fragmentation. In addition, the so-called "component carrier" can refer to a set of frequency resources corresponding to the conventional scheduling unit (i.e., actual CC described later), and the set of frequency resources in the frequency fragmentation (i.e., virtual CC described later) can also be referred to as "component carrier".

[0040] Further, in carrier aggregation, aggregation in a granularity different from a component carrier is defined as non-continuous carrier aggregation.

[0041] Further, in carrier aggregation (non-continuous carrier aggregation), scheduling in a granularity different from a component carrier is defined as non-continuous scheduling.

[0042] The above granularity different from a component carrier can be in units of virtual CC, in units of BWP (Bandwidth Part), in units of PRB (Physical Resource Block) or PRB set. The virtual CC is a set of carriers in which all or a part of the frequency resources included in each of the multiple component carriers is bundled. For example, it can be assumed that the virtual CC is composed of multiple BWPs.

[0043] Figure 2 FIG. 1 is a first diagram illustrating an example of a structure of a virtual CC according to an embodiment of the present disclosure. Figure 2 The virtual CC #i illustrated in the drawing is a set of carriers in which BWP #a and BWP #b included in each of the multiple component carriers (CC #0 and CC #1) is bundled.

[0044] Further, the virtual CC can also be assumed to be composed of multiple PRBs or PRB sets.

[0045] Figure 3 FIG. 2 is a second diagram illustrating an example of a structure of a virtual CC according to an embodiment of the present disclosure. Figure 3The illustrated virtual CC #i is a carrier set obtained by bundling a plurality of PRBs included in each of a plurality of component carriers (CC #0 and CC #1) among the plurality of component carriers. In addition, the plurality of PRBs or PRB set can be included in one or a plurality of BWPs.

[0046] Hereinafter, a CC before bundling is referred to as an actual CC, and a CC after bundling is referred to as a virtual CC or a nominal CC. In addition, the names are not limited thereto. Furthermore, the actual CC can be not defined and set as a CC as long as it is a unit of a certain frequency resource. The virtual CC can also be defined and set as a CC.

[0047] Furthermore, the virtual CC can also be used in channel mapping, scheduling, retransmission control (HARQ, Hybrid Automatic Repeat request), configuration, and the like, as with the conventional single CC.

[0048] Furthermore, the actual CC can be replaced with a continuous frequency resource, and the virtual CC can be replaced with a non-continuous frequency resource.

[0049] The terminal 20 can also transmit terminal capability information indicating the structure of the virtual CC to the base station 10. The terminal capability information indicating the structure of the virtual CC can be information indicating that the virtual CC is constituted of a plurality of BWPs, for example, or information indicating that the virtual CC is constituted of a plurality of PRBs.

[0050] Furthermore, the terminal capability information indicating the structure of the virtual CC can be information indicating that the virtual CC constituted of a plurality of BWPs and the virtual CC constituted of a plurality of PRBs are supported.

[0051] The terminal 20 can also transmit terminal capability information indicating the structure of the virtual CC to the base station 10. The terminal capability information indicating the structure of the virtual CC can be information indicating that the virtual CC is constituted of a plurality of BWPs, for example, or information indicating that the virtual CC is constituted of a plurality of PRBs.

[0052] Furthermore, the terminal capability information indicating the structure of the virtual CC can be information indicating that the virtual CC constituted of a plurality of BWPs and the virtual CC constituted of a plurality of PRBs are supported.

[0053] Furthermore, the terminal 20 can also assume that an index for identifying each virtual CC is set by the base station 10 through RRC. Furthermore, the terminal 20 can also assume that the index for identifying each virtual CC is the minimum value of the indexes of the component carriers (for example, in the case of Figure 2 or Figure 3maximum (e.g., in Figure 2 or Figure 3 maximum (e.g., in

[0054] The terminal 20 can also be conceived to notify the scheduling unit in the non-continuous scheduling by (i) a virtual CC index, (ii) an index of a plurality of component carriers + an index of a plurality of BWPs, (iii) an index of a plurality of component carriers + an index of a plurality of PRBs or PRB sets, (iv) an index of a plurality of component carriers + an index of a plurality of BWPs + an index of a plurality of PRBs or PRB sets, and the like.

[0055] Further, the terminal 20 can also conceive the resource unit of the carrier aggregation as a virtual CC, a BWP, a PRB, or a PRB set.

[0056] According to the above-described actions, it is possible to realize the resource allocation in the scheduling unit of the granularity different from the component carrier.

[0057] (Embodiment)

[0058] In the present embodiment, the processing related to the transport block and the processing related to the retransmission control when using the frequency resources non-continuous in the frequency domain in the wireless communication are described.

[0059] In the present embodiment, the terminal 20, in a case where a virtual CC is constituted by one or more actual CCs, performs the reception of a PDSCH or the transmission of a PUSCH in which a transport block (TB) is generated and mapped, across a plurality of actual CCs. Here, the PDSCH across a plurality of actual CCs means that the frequency resources used in the PDSCH are included in a part or all of a plurality of actual CCs. Further, the actions of the reception of the PDSCH and the transmission of the PUSCH can also be different.

[0060] Further, the TB can be replaced with a code block (CB) or a code block group (CBG), and the transmission, retransmission, and the transmission of the feedback information (HARQ feedback) in the CB or CBG unit can be performed within the virtual CC.

[0061] (Embodiment 1)

[0062] In Embodiment 1, the TB is generated and mapped per actual CC.

[0063] (Embodiment 1a) TBS determination

[0064] The base station 10 and the terminal 20 can also determine the size of the TB (Transport Block Size, TBS) based on the available resource elements (REs) in each actual CC, the transmitted demodulation reference signal DMRS (DeModulation Reference Signal), and the overhead. Here, the overhead can be, for example, a channel state information reference signal (CSI-RS (Channel State Information-Reference Signal)), a phase tracking reference signal (PT-RS), and the like, and can also be determined based on an RRC parameter.

[0065] Furthermore, the base station 10 and the terminal 20 can apply a common modulation and coding scheme (MCS) to all of the actual CCs, or can also apply different MCSs for each actual CC.

[0066] (Embodiment 1b) Mapping

[0067] The base station 10 and the terminal 20 map the TBs generated for each actual CC to each actual CC.

[0068] The order of mapping can be an order of mapping in the time direction after the frequency direction, or an order of mapping in the frequency direction after the time direction.

[0069] Figure 4 is a diagram illustrating an example (1) of mapping of a transport block according to the embodiment of the present application. In Figure 4 , the virtual CC is composed of actual CCs #0, #1, and #2, and in the PDSCH spanning the actual CC #0 and the actual CC #1, TB #0 is generated and mapped for the actual CC #0, and TB #1 is generated and mapped for the actual CC #1. The order of mapping is an order of mapping in the time direction after the frequency direction.

[0070] (Embodiment 1c) HARQ Process Management

[0071] In the virtual CC, the retransmission control process (HARQ process) can be defined and managed in each actual CC, or can also be defined and managed across (spanning) the actual CCs.

[0072] The retransmission control process number of the TB in each actual CC can be a value common to all the actual CCs. In this case, the base station 10 notifies the terminal 20 of the common value included in the downlink control information (DCI). Alternatively, the retransmission control process number of the TB in each actual CC can be a value different for each actual CC. In this case, for example, the base station 10 notifies the terminal 20 of the retransmission control process number for each actual CC included in the DCI. Notification based on the DCI can not be used, but notification based on RRC or MAC CE can be used.

[0073] The NDI (New Data Indicator) of the TB in each actual CC can be a value common to all the actual CCs. In this case, the base station 10 notifies the terminal 20 of the common value included in the DCI. Alternatively, the NDI of the TB in each actual CC can be a value different for each actual CC. In this case, for example, the base station 10 notifies the terminal 20 of the NDI for each actual CC included in the DCI.

[0074] The RV (Redundancy Version) of the TB in each actual CC can be a value common to all the actual CCs. In this case, the base station 10 notifies the terminal 20 of the common value included in the DCI. Alternatively, the RV of the TB in each actual CC can be a value different for each actual CC. In this case, for example, the base station 10 notifies the terminal 20 of the RV for each actual CC included in the DCI.

[0075] In a specific actual CC, retransmission of the TB in another actual CC included in the same virtual CC can also be performed. In this case, for example, the base station 10 can notify the terminal 20 of information on the actual CC in which the retransmission is performed (for example, the TB whose retransmission is performed is transmitted through which actual CC) included in the DCI.

[0076] In a virtual CC, when the retransmission control process is defined and managed across (across) actual CCs, the maximum number of retransmission control processes can also be the sum of the maximum numbers in each actual CC.

[0077] (Embodiment 1d) Feedback

[0078] In the feedback on the PDSCH, the generation and reporting of the feedback information (HARQ-ACK) can be performed for each TB in each actual CC.

[0079] As for the notification information (e.g., DAI (Downlink Assignment Index)) in the DCI related to the decision of the number of bits of the HARQ-ACK, the notification information can be notified per each TB in each actual CC, or the notification information including a single value can be notified for the TBs in all the actual CCs.

[0080] The timing and the resource related to the reporting of the feedback information can be the same for the TBs in all the actual CCs, or can be different per each TB in each actual CC.

[0081] The generation and the reporting of the single feedback information (HARQ-ACK) can also be performed based on the decoding result of each TB in each actual CC. For example, if all the decoding is successful, ACK is notified, and if one decoding fails, NACK is notified.

[0082] In the case where the PUCCH group is different among the actual CCs, the generation and the reporting of the feedback information can be performed in each PUCCH group, or the generation and the reporting of the feedback information can be performed in a specific PUCCH group. Here, the specific PUCCH group can be, for example, a PUCCH group for the index of the smallest or the largest actual CC in the PDSCH, or a PUCCH group for the index of the actual CC involved in the scheduling-PDCCH which performs the scheduling of the PDSCH.

[0083] According to the above-described embodiment 1, in wireless communication, the generation and the mapping of the transport block at the time of using the frequency resources which are not continuous in the frequency domain can be performed. In addition, in embodiment 1, the action related to the TB is limited to the actual CC, and thus the structure of the terminal 20 can be prevented from being complicated.

[0084] (Embodiment 2)

[0085] In embodiment 2, the TB is generated and mapped across the actual CCs per each PDSCH or PUSCH.

[0086] (Embodiment 2a) TBS determination

[0087] The base station 10 and the terminal 20 can also determine the size of the TB (Transport Block Size, TBS) based on the resource elements (Resource Elements, REs) available in the entirety of the PDSCH or the PUSCH, the transmitted demodulation reference signal DMRS (DeModulation Reference Signal), and the overhead. Here, the overhead can be, for example, a channel state information reference signal (CSI (Channel State Information)-RS (Reference Signal)), a phase tracking reference signal (PT (Phase Tracking)-RS), and the like, and can also be determined based on an RRC parameter.

[0088] Furthermore, the base station 10 and the terminal 20 can also apply a common modulation and coding scheme (Modulation and Coding Schemes, MCS) in the entirety of the PDSCH or the PUSCH.

[0089] Furthermore, a plurality of TBs can also be generated for the PDSCH or the PUSCH. The generation of a plurality of TBs can also be performed only in a case where a specific condition is satisfied. For example, in a case where the TBS in a case where only one TB is generated exceeds a specific size, it can be set that a plurality of TBs can be generated, and in a case where the TBS does not exceed the specific size, it can be set that a plurality of TBs cannot be generated.

[0090] (Embodiment 2b) Mapping

[0091] The base station 10 and the terminal 20 map the TBs generated for the entirety of the PDSCH or the PUSCH across (across) a plurality of actual CCs. In addition, in a case where a plurality of TBs are generated, the TBs can be mapped in the PDSCH or the PUSCH in the time direction in order.

[0092] The order of the mapping can adopt the following three methods.

[0093] (Method 1) In an actual CC, the mapping is performed in the order of the frequency direction, the next actual CC, and the time direction.

[0094] (Method 2) In an actual CC, the mapping is performed in the order of the frequency direction, the time direction, and the next actual CC.

[0095] (Method 3) The mapping is performed in the order of the time direction, the frequency direction in an actual CC, and the next actual CC.

[0096] Figure 5 、 Figure 6 and Figure 7are diagrams showing examples of each of the method 1, the method 2, and the method 3 involved in mapping of a transport block according to an embodiment of the present application. In Figure 5 , Figure 6 and Figure 7 , a virtual CC is composed of actual CCs #0, #1, and #2, and a TB #0 is generated and mapped for a PDSCH spanning the actual CC #0 and the actual CC #1.

[0097] In Figure 5 , based on the method 1, the operation of mapping in the order of first in the frequency direction within the actual CC #0, then in the frequency direction within the actual CC #1, and finally in the time direction is repeated.

[0098] In Figure 6 , based on the method 2, after the mapping is repeated in the order of the frequency direction and the time direction within the actual CC #0, the mapping is repeated in the order of the frequency direction and the time direction within the actual CC #1.

[0099] In Figure 7 , based on the method 3, after the mapping is repeated in the order of the time direction and the time direction within the actual CC #0, the mapping is repeated in the order of the time direction and the frequency direction within the actual CC #1.

[0100] (Embodiment 2c) HARQ Process Management

[0101] In a virtual CC, a retransmission control process (HARQ process) can be defined and managed in each actual CC, or can be defined and managed across (spanning) actual CCs.

[0102] In the case where a retransmission control process is defined and managed in each actual CC, a retransmission control process for a PDSCH or a PUSCH spanning a plurality of actual CCs can be a retransmission control process for the smallest or largest index of the actual CCs for the PDSCH or the PUSCH, can be a retransmission control process for the index of the actual CC involved in a PDCCH (scheduling-PDCCH) that performs scheduling for the PDSCH or the PUSCH, or can be a retransmission control process for the index of the actual CC set or notified via at least one of RRC, MAC CE, and DCI.

[0103] In the specific actual CC, retransmission of the TB in the other actual CC included in the same virtual CC can also be performed. At this time, the base station 10 can also include information on the retransmitted actual CC (for example, the TB whose retransmission is transmitted through which actual CC) in the DCI and notify the terminal 20 of the information.

[0104] In a case where a plurality of TBs are generated and mapped, the base station 10 can notify the terminal 20 of the retransmission control process number (HARQ process number, HPN) for each TB through the DCI. Alternatively, the base station 10 can notify the terminal 20 of the HPN for only the 1st TB through the DCI, and for the 2nd TB and thereafter, the HPN obtained by sequentially adding 1 to the notified HPN can be applied.

[0105] In a case where a plurality of TBs are generated and mapped, the base station 10 can notify the terminal 20 of the NDI (New Data Indicator) for each TB through the DCI. Alternatively, the base station 10 can notify the terminal 20 of the NDI common to all TBs.

[0106] In a case where a plurality of TBs are generated and mapped, the base station 10 can notify the terminal 20 of the RV (Redundancy Version) for each TB through the DCI. Alternatively, the base station 10 can notify the terminal 20 of the RV common to all TBs.

[0107] In a case where the retransmission control process is defined and managed across (across) the actual CCs, the maximum number of the retransmission control processes can be the sum of the maximum numbers in each actual CC.

[0108] (Embodiment 2d) Feedback

[0109] In the feedback on the PDSCH, the generation and reporting of the feedback information (HARQ-ACK) can be performed on the TB generated as a whole for the PDSCH or the PUSCH.

[0110] In a case where the PUCCH group is different between the actual CCs, the generation and reporting of the feedback information can be performed in each PUCCH group, or the generation and reporting of the feedback information can be performed in a specific PUCCH group. Here, the specific PUCCH group can be, for example, a PUCCH group for the index of the smallest or largest actual CC in the PDSCH, or a PUCCH group for the index of the actual CC involved in the PDCCH (scheduling-PDCCH) that performs the scheduling of the PDSCH.

[0111] In a case where a plurality of TBs are generated and mapped, the generation and reporting of feedback information (HARQ-ACK) can be performed per TB. Alternatively, the generation and reporting of single feedback information (HARQ-ACK) can be performed based on the decoding result of each TB. For example, if all decodings are successful, ACK is notified, and if one decoding fails, NACK is notified.

[0112] According to Embodiment 2 described above, in wireless communication, the generation and mapping of a transport block at the time of using non-continuous frequency resources in the frequency domain can be performed. In addition, in Embodiment 2, by performing an action related to TB generation and the like by regarding a virtual CC as the same CC as in the past, an action that follows flexible and efficient resource allocation can be performed.

[0113] (Embodiment 3)

[0114] In Embodiment 3, a TB is generated for a specific actual CC and is repeatedly mapped to the remaining actual CCs.

[0115] Here, as for the specific actual CC, it can be an actual CC having the smallest or largest index among actual CCs included in the actual CC or virtual CC of a PDSCH or PUSCH, can be an actual CC involved in a PDCCH (scheduling-PDCCH) that performs scheduling of the PDSCH or PUSCH, and can be a BS-configured / indicated actual CC set and / or specified by the base station 10.

[0116] (Embodiment 3a) TBS determination

[0117] The method described in Embodiment la is applied to the specific actual CC of Embodiment 3.

[0118] (Embodiment 3b) Mapping

[0119] The method described in Embodiment lb is applied to the specific actual CC of Embodiment 3.

[0120] As for the mapping to the remaining actual CCs, the same information as that of the specific actual CC can be copied and repeated.

[0121] Figure 8 is a diagram showing an example (2) of mapping of a transport block involved in an embodiment of the present application. In Figure 8In the virtual CC, the virtual CC is constituted by the actual CC #0 and the actual CC #1. Here, the sizes of the resources of the actual CC #0 and the actual CC #1 are the same. For the PDSCH that spans the actual CC #0 and the actual CC #1, first, in the actual CC #0, the mapping is performed by generating the TB (TB#0 Rep.#0). The order of the mapping is the order in which the mapping is performed in the time direction after the frequency direction. Next, in the actual CC #1, the mapping is performed by repeating the TB generated in the actual CC #0 (TB#0 Rep.#1).

[0122] As for the mapping to the remaining actual CC, frequency direction repetition based on a specific RV (Redundancy Version) can also be applied. For example, in the remaining actual CC, a value different from the RV used in the specific actual CC is used (for example, 1 is added for each repetition of the remaining actual CC).

[0123] In a case where the available resources of the remaining actual CC are less than the available resources of the specific actual CC, the mapping can also be performed by repeating only a part of the specific actual CC. Alternatively, the mapping of the TB can also be performed based on the available resources of the remaining actual CC and / or the RV value applied.

[0124] In a case where the available resources of the remaining actual CC are more than the available resources of the specific actual CC, the mapping can also be performed by repeating the specific actual CC multiple times. Alternatively, the mapping of the TB can also be performed based on the available resources of the remaining actual CC and / or the RV value applied.

[0125] (Embodiment 3c) HARQ Process Management

[0126] In the virtual CC, the retransmission control process (HARQ process) can be defined and managed in each actual CC, or can also be defined and managed across (spanning) the actual CCs.

[0127] In the specific actual CC, the retransmission of the TB in the other actual CC included in the same virtual CC can also be performed. At this time, for example, the base station 10 can also notify the terminal 20 of the information related to the retransmitted actual CC in the DCI.

[0128] In the virtual CC, when the retransmission control process is defined and managed across (spanning) the actual CCs, the maximum number of the retransmission control processes can also be the sum of the maximum numbers in each actual CC.

[0129] (Embodiment 3d) Feedback

[0130] In the feedback related to the PDSCH, the method explained in Embodiment 1a is applied.

[0131] According to Embodiment 3 described above, in wireless communication, it is possible to perform the generation and mapping of the transport block at the time of using the frequency resources that are not continuous in the frequency domain. Further, in Embodiment 3, since the actions involved in the generation of the TB and the like are performed only by the specific actual CC, it is possible to simplify the actions of the terminal, and it is possible to perform the actions that follow the flexible and efficient resource allocation.

[0132] (First Modification Example)

[0133] A first modification example that can be applied to Embodiments 1, 2, and 3 will be explained.

[0134] In the first modification example, the sequence for scrambling of the PDSCH or the PUSCH can be a sequence based on the index related to each actual CC. For example, in the formula for calculating the sequence, the index related to each actual CC can also be included.

[0135] Alternatively, the sequence can also be a sequence based on the index related to the specific actual CC. Here, as the specific actual CC, it can be the actual CC of the smallest or largest index among the actual CCs included in the actual CC or the virtual CC of the PDSCH or the PUSCH, it can be the actual CC involved in the PDCCH that performs the scheduling of the PDSCH or the PUSCH (scheduling-PDCCH), or it can be the actual CC that is BS-configured / indicated by the base station 10.

[0136] Alternatively, the sequence can also be a sequence based on the index related to the virtual CC.

[0137] (Second Modification Example)

[0138] A second modification example that can be applied to Embodiments 1, 2, and 3 will be explained.

[0139] In the second modification example, the processes and methods explained in Embodiments 1, 2, and 3 can also be applied to the inter-terminal communication and the channel for the inter-terminal communication (Sidelink channel). That is, the downlink data channel (PDSCH) and the uplink data channel (PUSCH) can also be replaced with the data channel for the inter-terminal communication (PSSCH).

[0140] (Third Modification Example)

[0141] A third modification example applicable to Embodiment 1, Embodiment 2, and Embodiment 3 will be described.

[0142] In the third modification example, the base station 10 can also set and notify the terminal 20 of information on which one of the processes and methods described in Embodiments 1, 2, and 3 to use in RRC, MAC CE, and DCI, and thereby switch.

[0143] With the above-described embodiments, in wireless communication, the generation and mapping of a transport block at the time of using non-continuous frequency resources in the frequency domain can be performed. Further, the actions related to the TB are limited to the actual CCs, and thereby the structure of the terminal 20 can be prevented from being complicated. In addition, by performing the actions related to the TB generation and the like as if the virtual CC is the same as the conventional CC, actions in compliance with flexible and efficient resource allocation can be performed. Further, since the actions related to the TB generation and the like are performed only by the specific actual CCs, the actions of the terminal can be simplified, and actions in compliance with flexible and efficient resource allocation can be performed.

[0144] (Fourth Modification Example)

[0145] A fourth modification example applicable to Embodiment 1, Embodiment 2, and Embodiment 3 will be described.

[0146] In the fourth modification example, the actual CCs included in a certain virtual CC can also be grouped, and the processes and methods applied to the actual CCs within the group and the processes and methods applied to the actual CCs between the groups can also be different. Here, the processes and methods are, for example, the processes and methods described in Embodiments 1, 2, and 3.

[0147] Figure 9 is a diagram showing an example of grouping of virtual CCs according to an embodiment of the present disclosure. As shown in Figure 9 the virtual CC is constituted by actual CCs #0, #1, #2, and #3, and the actual CCs #0 and #1 are grouped into a group #0, and the actual CCs #2 and #3 are grouped into a group #1.

[0148] Here, for the transmission (PDSCH and the like) of data within the group across the actual CCs #0 and #1 within the group #0 (i.e., the transmission of data including the actual CCs of the same group), for example, the processes and methods described in Embodiment 2 can be applied.

[0149] Further, for the transmission (PDSCH and the like) of data between the groups across the actual CC #1 of the group #0 and the actual CC #2 of the group #1 (i.e., the transmission of data including the actual CCs of different groups), for example, the processes and methods described in Embodiment 1 can be applied.

[0150] The grouping can be performed based on a setting, can be determined based on numerology (e.g., actual CCs having the same SCS are set as the same group, etc.), and can be determined based on frequency resources (e.g., actual CCs having the same frequency band or frequency range (FR) are set as the same group, etc.).

[0151] (5th Modification Example)

[0152] A 5th modification example applicable to Embodiment 1, Embodiment 2, and Embodiment 3 will be described.

[0153] In the 5th modification example, control related to retransmission control (HARQ) can also be performed in units of virtual CCs.

[0154] (5-1)

[0155] The maximum number of retransmission control processes (HARQ processes) can be defined in units of virtual CCs, and a terminal capability (UE capability) related to the retransmission control processes can be reported from the terminal 20 to the base station 10. The terminal capability includes, for example, information such as the maximum number of retransmission control processes.

[0156] (5-2)

[0157] The retransmission control processes can also be defined and managed across (spanning) actual CCs. Also, 5-2a to 5-2d below can be applied.

[0158] (5-2a)

[0159] A retransmission control process number (HARQ process number, HPN) or an index indicating the number can be defined in units of virtual CCs. For example, within a virtual CC, integer values from 0 to 15 can be defined as retransmission control process numbers. In addition, the maximum value is not limited to 15.

[0160] (5-2b)

[0161] The retransmission control process number or the index indicating the number can also be defined in association with (in association with) actual CCs. For example, retransmission control process numbers 0, 1, 2, 3 associated with actual CC #0 and retransmission control process numbers 0, 1, 2, 3 associated with actual CC #1 can be defined. In addition, notification in transmission and retransmission can also be performed as follows.

[0162] At the time of initial transmission, the terminal 20 is notified of the index of the actual CC on which transmission is performed and the retransmission control process number from the base station 10.

[0163] At the time of retransmission indication, the index of the actual CC at the time of initial transmission and the retransmission control process number are notified from the base station 10 to the terminal 20.

[0164] In the data transmission across (spanning) a plurality of actual CCs corresponding to the retransmission control process number, the index of a specific actual CC (for example, the minimum value of the indexes of the actual CCs in the plurality of actual CCs) can also be notified from the base station 10 to the terminal 20.

[0165] (5-2c)

[0166] The multiple times of transmission data associated with (established in association with) the same retransmission control process number within the virtual CC can be synthesized and decoded. By this decoding, the accuracy of the decoding result can be improved.

[0167] (5-2d)

[0168] The retransmission control process number of the downlink semi-persistent scheduling (DL (Downlink) SPS (Semi-Persistent Scheduling)) and / or the uplink configured grant (UL (Uplink) CG (Configured Grant)) can be decided based on the setting of the retransmission control process number in the virtual CC. In addition, the names of the DL SPS and the UL CG can also be different, as long as the function of performing transmission or reception in a periodic resource without receiving scheduling information for each transmission or reception.

[0169] (5-3)

[0170] As for the action related to the information notified by the MAC-CE included in the TB, for example, it can be defined as shown in 5-3a or 5-3b below.

[0171] (5-3a)

[0172] The information notified by the MAC-CE included in the TB can be applied to the entire virtual CC.

[0173] (5-3b)

[0174] The information notified by the MAC-CE included in a certain TB can be applied to a specific actual CC.

[0175] (5-3b―1)

[0176] The information can be applied to all actual CCs in which the TB is transmitted.

[0177] (5-3b―2)

[0178] This information can also be applied to specific actual CCs among the actual CCs that sent the TB. For example, it can also be applied to the actual CC with the smallest index value among the actual CCs that sent the TB, the actual CC notified by MAC-CE, and the actual CC associated with (establishing an association) the retransmission control process number of the TB, etc.

[0179] (Sixth variation)

[0180] A sixth variation that can be applied to Examples 1, 2, and 3 will be described.

[0181] In the sixth variation, controls related to re-encoder control (HARQ) can also be executed on a per-CC basis.

[0182] (6-1)

[0183] The maximum number of HARQ processes can be defined in units of actual CCs, or it can be reported from terminal 20 to base station 10 by UE capabilities related to the HARQ process. These UE capabilities may include information such as the maximum number of HARQ processes.

[0184] (6-2)

[0185] The retransmission control process can also be defined and managed on a per-actual-CC basis. Furthermore, sections 6-2a to 6-2c below can also be applied.

[0186] (6-2a)

[0187] The retransmission control process number (HARQ process number, HPN) or the index representing that number can be defined in units of virtual CCs. For example, in a virtual CC, an integer value from 0 to 15 can be defined as the retransmission control process number. Furthermore, the maximum value is not limited to 15.

[0188] (6-2b)

[0189] The retransmission control process number, or the index representing that number, can also be defined by associating it with the actual CC (establishing an association). For example, it can be defined as retransmission control process numbers 0, 1, 2, 3 associated with actual CC#0, and retransmission control process numbers 0, 1, 2, 3 associated with actual CC#1, etc.

[0190] In the transmission that spans (crosses) multiple actual CCs corresponding to the retransmission control process number, the base station 10 can also notify the terminal 20 of the retransmission control process number corresponding to the index of a specific actual CC (e.g., the minimum index of the actual CCs among the multiple actual CCs, the index of the notified actual CC, etc.).

[0191] (6-2c)

[0192] The retransmission control process number for downlink semi-persistent scheduling (DL (Downlink) SPS) and / or uplink fixed scheduling (UL (Uplink) CG (Configured Grant)) can be determined based on the retransmission control process number setting in the actual CC. Furthermore, the names of DL SPS and UL CG can also be different, as long as they perform the transmission or reception function in periodic resources without receiving scheduling information for each transmission or reception.

[0193] (6-3)

[0194] Actions relating to information notified by MAC-CE contained in TB can be defined, for example, as shown in 6-3a or 6-3b below.

[0195] (6-3a)

[0196] The information provided by MAC-CE contained in TB can be applied to the entire virtual CC.

[0197] (6-3b)

[0198] The information provided by MAC-CE contained in TB can be applied to specific actual CCs.

[0199] (6-3b―1)

[0200] This information can be applied to all actual CCs sent for that TB.

[0201] (6-3b―2)

[0202] This information can also be applied to specific actual CCs among the actual CCs that sent the TB. For example, it can also be applied to the actual CC with the smallest index value among the actual CCs that sent the TB, the actual CC notified by MAC-CE, and the actual CC associated with (establishing an association) the retransmission control process number of the TB, etc.

[0203] According to the above embodiments, in wireless communication, non-contiguous frequency resources in the frequency domain can be used to transmit and receive data. Furthermore, control related to HARQ control can be performed efficiently.

[0204] (Device structure)

[0205] Next, an example of the functional structure of the base station 10 and terminal 20 performing the processes and actions described above will be explained. The base station 10 and terminal 20 include the functions implemented in the above embodiments. However, the base station 10 and terminal 20 may each have only a portion of the functions described in the embodiments.

[0206] <Base Station 10>

[0207] Figure 10 This is a diagram illustrating an example of the functional structure of base station 10 in an embodiment of the present invention. For example... Figure 10 As shown, the base station 10 has a transmitting unit 110, a receiving unit 120, a setting unit 130 and a control unit 140. Figure 10 The functional structure shown is only one example. As long as the actions involved in the embodiments of the present invention can be performed, the functional distinctions and names of the functional units can be arbitrary. Alternatively, the transmitting unit 110 and the receiving unit 120 can be collectively referred to as the communication unit.

[0208] The transmitting unit 110 includes the function of generating a signal to be transmitted to the terminal 20 and wirelessly transmitting the signal. Furthermore, the transmitting unit 110 transmits inter-network node messages to other network nodes. The receiving unit 120 includes the function of receiving various signals transmitted from the terminal 20 and obtaining, for example, higher-level information from the received signals. Furthermore, the transmitting unit 110 has the function of transmitting NR-PSS, NR-SSS, NR-PBCH, DL / UL control signals, etc., to the terminal 20. Furthermore, the receiving unit 120 receives inter-network node messages from other network nodes.

[0209] The setting unit 130 stores preset setting information and various setting information sent to the terminal 20. The content of the setting information includes, for example, information related to discontinuous frequency resources.

[0210] As described in the embodiment, the control unit 140 performs control related to discontinuous frequency resources. Alternatively, the signal transmission-related functions of the control unit 140 may be included in the transmission unit 110, and the signal reception-related functions of the control unit 140 may be included in the reception unit 120.

[0211] Terminal 20

[0212] Figure 11 This is a diagram illustrating an example of the functional structure of terminal 20 in an embodiment of the present invention. For example... Figure 11 As shown, the terminal 20 includes a transmitting unit 210, a receiving unit 220, a setting unit 230, and a control unit 240. Figure 11 The functional structure shown is only one example. As long as the actions involved in the embodiments of the present invention can be performed, the functional distinctions and names of the functional units can be arbitrary. Alternatively, the transmitting unit 210 and the receiving unit 220 can be collectively referred to as the communication unit.

[0213] The transmitting unit 210 generates a transmission signal based on the transmission data and transmits the transmission signal wirelessly. The receiving unit 220 wirelessly receives various signals and obtains higher-layer signals from the received physical layer signals. Furthermore, the receiving unit 220 has the function of receiving NR-PSS, NR-SSS, NR-PBCH, DL / UL / SL control signals, etc., transmitted from the base station 10. For example, as D2D communication, the transmitting unit 210 transmits PSCCH (Physical Sidelink Control Channel), PSSCH (Physical Sidelink Shared Channel), PSDCH (Physical Sidelink Discovery Channel), PSBCH (Physical Sidelink Broadcast Channel), etc., to other terminals 20, and the receiving unit 220 receives PSCCH, PSSCH, PSDCH, or PSBCH from other terminals 20.

[0214] The setting unit 230 stores various setting information received from the base station 10 by the receiving unit 220. In addition, the setting unit 230 also stores preset setting information. The content of the setting information includes, for example, information related to discontinuous frequency resources.

[0215] As described in the embodiment, the control unit 240 performs control related to discontinuous frequency resources. Alternatively, the signal transmission-related functions of the control unit 240 may be included in the transmission unit 210, and the signal reception-related functions of the control unit 240 may be included in the reception unit 220.

[0216] (Hardware structure)

[0217] The block diagrams used in the description of the above embodiments ( Figure 10 as well as Figure 11 The diagram illustrates blocks organized by function. These functional blocks (components) are implemented through any combination of at least one of hardware and software. Furthermore, there are no particular limitations on the implementation method of each functional block. That is, each functional block can be implemented using a single device that is physically or logically combined, or by directly or indirectly (e.g., using wired, wireless, etc.) connecting two or more physically or logically separate devices. Functional blocks can also be implemented by combining software within the aforementioned single or multiple devices.

[0218] The functions include judgment, decision, determination, calculation, calculation, processing, derivation, investigation, search, confirmation, receiving, sending, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, consideration, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assigning, but are not limited to these. For example, the functional block (component) that enables transmission is called the transmitting unit or transmitter. In short, as mentioned above, there are no particular limitations on the implementation method.

[0219] For example, in one embodiment of this disclosure, the base station 10, terminal 20, etc., can also function as a computer for processing the wireless communication method of this disclosure. Figure 12 This is a diagram illustrating an example of the hardware structure of a base station 10 and a terminal 20 according to an embodiment of the present disclosure. The base station 10 and the terminal 20 may also be configured as a computer device that physically includes a processor 1001, a storage device 1002, an auxiliary storage device 1003, a communication device 1004, an input device 1005, an output device 1006, and a bus 1007.

[0220] Furthermore, in the following description, the term "device" can be replaced with "circuit," "device," "unit," etc. The hardware structure of base station 10 and terminal 20 can be configured to include one or more of the devices shown in the figures, or it can be configured to include no part of the device.

[0221] The functions of base station 10 and terminal 20 are implemented by reading predetermined software (program) into hardware such as processor 1001 and storage device 1002, so that processor 1001 performs calculations and controls the communication of communication device 1004 or controls at least one of reading and writing data in storage device 1002 and auxiliary storage device 1003.

[0222] The processor 1001 controls the computer as a whole by instructing the operating system to operate. The processor 1001 may also be a central processing unit (CPU) that includes interfaces with peripheral devices, control units, arithmetic units, registers, etc. For example, the control unit 140 and control unit 240 described above can also be implemented using the processor 1001.

[0223] Furthermore, the processor 1001 reads programs (program code), software modules, or data from at least one of the auxiliary storage devices 1003 and communication devices 1004, and performs various processes accordingly. As a program, a program is used that causes the computer to perform at least a portion of the actions described in the above embodiments. For example, Figure 10 The control unit 140 of the base station 10 shown can be implemented by a control program stored in the storage device 1002 and operated in the processor 1001. Alternatively, for example, Figure 11 The control unit 240 of the terminal 20 shown can also be implemented by a control program stored in the storage device 1002 and operated in the processor 1001. Although it has been described that the various processes described above are executed by one processor 1001, the various processes described above can also be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 can also be implemented by one or more chips. In addition, the program can also be sent from the network via a telecommunications line.

[0224] Storage device 1002 is a computer-readable recording medium, and may be composed of at least one of the following: ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory). Storage device 1002 may also be referred to as a register, cache, main memory (main storage device), etc. Storage device 1002 can store programs (program code), software modules, etc., that are executable for implementing the communication method according to one embodiment of this disclosure.

[0225] The auxiliary storage device 1003 is a computer-readable recording medium, such as at least one of the following: CD-ROM (CompactDisc ROM) or other optical discs, hard disks, floppy disks, magneto-optical discs (e.g., compact discs, digital multifunction discs, Blu-ray discs, smart cards, flash memory (e.g., cards, sticks, key drives), floppy disks, magnetic stripes, etc. The aforementioned storage medium may be, for example, a database, server, or other suitable media that includes at least one of the storage device 1002 and the auxiliary storage device 1003.

[0226] The communication device 1004 is hardware (transceiver) used for communication between computers via at least one of a wired network and a wireless network. It may also be referred to as a network device, network controller, network interface card (NIC), communication module, etc. The communication device 1004 may, for example, be configured to include a high-frequency switch, duplexer, filter, frequency synthesizer, etc., to implement at least one of frequency division duplex (FDD) and time division duplex (TDD). For example, transceiver antennas, amplifiers, transceiver units, transmission path interfaces, etc., can also be implemented using the communication device 1004. The transceiver unit may also be physically or logically separated into a transmitting unit and a receiving unit.

[0227] Input device 1005 is an input device that accepts input from external sources (e.g., keyboard, mouse, microphone, switch, button, sensor, etc.). Output device 1006 is an output device that performs output to external sources (e.g., display, speaker, LED, etc.). Alternatively, input device 1005 and output device 1006 can also be integrated (e.g., a touch panel).

[0228] Furthermore, the processor 1001 and storage device 1002, among other devices, are connected via a bus 1007 for communicating information. The bus 1007 can be configured using a single bus or different buses can be used between each device.

[0229] Furthermore, the base station 10 and the terminal 20 can be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), or a FPGA (Field Programmable Gate Array), and can also use this hardware to implement part or all of the functional blocks. For example, the processor 1001 can also be implemented using at least one of these hardware components.

[0230] Figure 13 An example of the structure of vehicle 2001 is shown. For example... Figure 13As shown, the vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a gearshift lever 2006, front wheels 2007, rear wheels 2008, an axle 2009, an electronic control unit 2010, various sensors 2021-2029, an information service unit 2012, and a communication module 2013. The various forms / implementations described in this disclosure can also be applied to communication devices mounted on the vehicle 2001, for example, to the communication module 2013.

[0231] The drive unit 2002 may be composed, for example, an engine, a motor, or a hybrid power system of an engine and a motor. The steering unit 2003 includes at least a steering wheel (also called a steering wheel) and is configured to steer at least one of the front wheels and the rear wheels based on the operation of the steering wheel operated by the user.

[0232] The electronic control unit 2010 consists of a microprocessor 2031, a memory (ROM, RAM) 2032, and a communication port (I / O port) 2033. Signals from various sensors 2021 to 2029 of the vehicle 2001 are input to the electronic control unit 2010. The electronic control unit 2010 can also be referred to as an ECU (Electronic Control Unit).

[0233] The signals from various sensors 2021 to 2029 include current signals from current sensor 2021 that monitors motor current, speed signals of the front or rear wheels obtained by speed sensor 2022, air pressure signals of the front or rear wheels obtained by air pressure sensor 2023, vehicle speed signals obtained by vehicle speed sensor 2024, acceleration signals obtained by acceleration sensor 2025, accelerator pedal input signals obtained by accelerator pedal sensor 2029, brake pedal input signals obtained by brake pedal sensor 2026, gear lever operation signals obtained by gear lever sensor 2027, and detection signals obtained by object detection sensor 2028 for detecting obstacles, vehicles, pedestrians, etc.

[0234] The Information Service Unit 2012 comprises various devices such as a car navigation system, audio system, speakers, television, and radio, used to provide (output) various information such as driving information, traffic information, and entertainment information, and one or more ECUs that control these devices. The Information Service Unit 2012 uses information obtained from external devices via a communication module 2013, etc., to provide various multimedia information and multimedia services to the occupants of the vehicle 2001. The Information Service Unit 2012 may include input devices that accept input from external sources (such as keyboards, mice, microphones, switches, buttons, sensors, touch panels, etc.), and may also include output devices that perform output to external sources (such as displays, speakers, LED lights, touch panels, etc.).

[0235] The Driver Assistance System 2030 comprises various devices used to prevent accidents or reduce driver workload, such as millimeter-wave radar, LiDAR (Light Detection and Ranging), cameras, positioning devices (e.g., GNSS), map information (e.g., high-definition (HD) maps, autonomous vehicle (AV) maps), gyroscope systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System)), AI (Artificial Intelligence) chips, and AI processors, as well as one or more ECUs that control these devices. Furthermore, the Driver Assistance System 2030 transmits and receives various information via the communication module 2013 to achieve driver assistance or autonomous driving functions.

[0236] The communication module 2013 can communicate with the microprocessor 2031 and the components of the vehicle 2001 via the communication port. For example, the communication module 2013 can send and receive data with the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, gear shift lever 2006, front wheel 2007, rear wheel 2008, axle 2009, microprocessor 2031 in the electronic control unit 2010, memory (ROM, RAM) 2032, and sensors 2021 to 29 in the vehicle 2001 via the communication port 2033.

[0237] The communication module 2013, controlled by the microprocessor 2031 of the electronic control unit 2010, is a communication device capable of communicating with external devices. For example, it can transmit and receive various types of information with external devices via wireless communication. The communication module 2013 can be located inside or outside the electronic control unit 2010. External devices can be, for example, base stations, mobile stations, etc.

[0238] The communication module 2013 can also wirelessly transmit at least one of the signals input to the electronic control unit 2010 from the various sensors 2021-2028 described above, the information obtained based on those signals, and the information obtained via the information service unit 2012 based on input from an external source (user) to an external device. The electronic control unit 2010, the various sensors 2021-2028, and the information service unit 2012 can also be referred to as input units that receive input. For example, the PUSCH transmitted by the communication module 2013 may include information based on the aforementioned inputs.

[0239] The communication module 2013 receives various information (traffic information, signal information, vehicle-to-vehicle information, etc.) sent from external devices and displays it on the information service unit 2012 of the vehicle 2001. The information service unit 2012 can also be referred to as an output unit (for example, an output unit that outputs information to devices such as displays and speakers based on the PDSCH received by the communication module 2013 (or data / information decoded from the PDSCH)). Furthermore, the communication module 2013 stores the various information received from external devices in a memory 2032 available to the microprocessor 2031. The microprocessor 2031 can also control the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, gearshift lever 2006, front wheels 2007, rear wheels 2008, axles 2009, sensors 2021-2029, etc., of the vehicle 2001 based on the information stored in the memory 2032.

[0240] (Summary of implementation methods)

[0241] As described above, according to an embodiment of the present invention, a terminal is provided, comprising: a control unit that envisions that in a non-contiguous frequency resource consisting of a plurality of consecutive frequency resources, a retransmission control process is managed on a per-non-contiguous frequency resource basis, and that the number of the retransmission control process is defined in the non-contiguous frequency resource or that a number associated with the consecutive frequency resource is defined in the non-contiguous frequency resource; and a transmission unit that transmits to a base station a terminal capability including the maximum number of the retransmission control processes in the non-contiguous frequency resources.

[0242] Based on the above structure, in wireless communication, non-contiguous frequency resources in the frequency domain can be used to transmit and receive data. Furthermore, it enables efficient execution of controls related to HARQ control.

[0243] Furthermore, according to an embodiment of the present invention, a terminal is provided, comprising: a control unit that envisions that in a non-contiguous frequency resource consisting of a plurality of contiguous frequency resources, a retransmission control process is managed on a per-contiguous frequency resource basis, and that the number of the retransmission control process is defined in the non-contiguous frequency resource or that a number associated with the contiguous frequency resource is defined in the non-contiguous frequency resource; and a transmission unit that transmits to a base station a terminal capability including the maximum number of the retransmission control processes in the contiguous frequency resources.

[0244] Based on the above structure, in wireless communication, non-contiguous frequency resources in the frequency domain can be used to transmit and receive data. Furthermore, it enables efficient execution of controls related to HARQ control.

[0245] The terminal also has a receiving unit that receives from the base station the minimum value among the indices of a plurality of consecutive frequency resources used in data transmission corresponding to the retransmission control process.

[0246] Based on the above structure, in wireless communication, non-contiguous frequency resources in the frequency domain can be used to transmit and receive data. Furthermore, it enables efficient execution of controls related to HARQ control.

[0247] Furthermore, according to an embodiment of the present invention, a terminal is provided, comprising: a control unit that groups multiple consecutive frequency resources into multiple groups in a non-consecutive frequency resource consisting of multiple consecutive frequency resources; and a transmission unit that performs data transmission using different methods for data transmission using multiple consecutive frequency resources within the group and data transmission using multiple consecutive frequency resources in different groups.

[0248] Based on the above structure, in wireless communication, it is possible to use non-contiguous frequency resources in the frequency domain to transmit and receive data.

[0249] Furthermore, according to an embodiment of the present invention, a base station is provided, comprising: a control unit that envisions that in a non-contiguous frequency resource composed of a plurality of contiguous frequency resources, a retransmission control process is managed on a per-non-contiguous frequency resource basis, and that the number of the retransmission control process is defined in the non-contiguous frequency resource or that a number associated with the contiguous frequency resource is defined in the non-contiguous frequency resource; and a receiving unit that receives from a terminal a terminal capability including the maximum number of the retransmission control processes in the non-contiguous frequency resources.

[0250] Based on the above structure, in wireless communication, non-contiguous frequency resources in the frequency domain can be used to transmit and receive data. Furthermore, it enables efficient execution of controls related to HARQ control.

[0251] Furthermore, according to an embodiment of the present invention, a communication method is provided, executed by a terminal, the communication method comprising the following steps: assuming that in a non-contiguous frequency resource composed of a plurality of contiguous frequency resources, a retransmission control process is managed on a per-non-contiguous frequency resource basis, and assuming that the number of the retransmission control process is defined in the non-contiguous frequency resource, or that a number associated with the contiguous frequency resource is defined in the non-contiguous frequency resource; and the terminal capability to transmit to a base station a maximum number of the retransmission control processes in the non-contiguous frequency resources.

[0252] Based on the above structure, in wireless communication, non-contiguous frequency resources in the frequency domain can be used to transmit and receive data. Furthermore, it enables efficient execution of controls related to HARQ control.

[0253] (Supplement to the implementation method)

[0254] The embodiments of the present invention have been described above, but the disclosed invention is not limited to such embodiments. Those skilled in the art should understand various modifications, alterations, substitutions, and replacements. Specific numerical examples have been used to facilitate understanding of the invention, but unless otherwise specified, these values ​​are merely examples, and any appropriate values ​​may be used. The distinctions between items in the above description are not essential to the present invention. Items described in two or more items may be combined as needed, and items described in one item may be applied to items described in another item (as long as there is no contradiction). The boundaries of functional units or processing units in the functional block diagram do not necessarily correspond to the boundaries of physical components. Multiple functional units may be operated by a single physical component, or a single functional unit may be operated by multiple physical components. Regarding the processing described in the embodiments, the order of processing may be interchanged unless there is a contradiction. For ease of explanation, a functional block diagram is used to illustrate the base station 10 and terminal 20, but such a device may also be implemented by hardware, software, or a combination thereof. The software operating according to the embodiments of the present invention via the processor of the base station 10 and the software operating according to the embodiments of the present invention via the processor of the terminal 20 may also be stored in random access memory (RAM), flash memory, read-only memory (ROM), EPROM, EEPROM, register, hard disk (HDD), removable disk, CD-ROM, database, server and other suitable storage media, respectively.

[0255] Furthermore, the notification of information is not limited to the forms / implementations described in this disclosure, and other methods may also be used. For example, information notification may be implemented through 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 combinations thereof. In addition, RRC signaling may also be referred to as an RRC message, for example, it may be an RRC connection setup message, an RRC connection reconfiguration message, etc.

[0256] The various forms / implementations described in this disclosure can also be applied to at least one of LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), FRA (Future Radio Access), NR (New Radio), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra-Wideband), Bluetooth (registered trademark), other suitable systems, and next-generation systems extended therefrom. Furthermore, multiple systems can be combined (e.g., a combination of at least one of LTE and LTE-A with 5G, etc.) for application.

[0257] The processing procedures, timing, and flow of the various forms / implementations described in this specification may be rearranged in order, provided there is no contradiction. For example, the elements of various steps are indicated using an illustrative order for the methods described in this disclosure, but are not limited to the specific order indicated.

[0258] In this specification, certain actions performed by base station 10 may sometimes also be performed by its upper node, depending on the circumstances. In a network consisting of one or more network nodes having base station 10, it is obvious that various actions performed to communicate with terminal 20 can be performed by at least one of base station 10 and other network nodes besides base station 10 (e.g., considering MME or S-GW, but not limited to these). The above example illustrates the case where there is one other network node besides base station 10, but other network nodes can also be a combination of multiple other network nodes (e.g., MME and S-GW).

[0259] The information or signals described in this disclosure can be output from a higher (or lower) layer to a lower (or higher) layer. They can also be input or output via multiple network nodes.

[0260] Input or output information can be stored in a specific location (e.g., memory) or managed using a management table. Input or output information can be overwritten, updated, or appended. Output information can also be deleted. Input information can also be sent to other devices.

[0261] The determination in this disclosure can be made by a value represented by 1 bit (0 or 1), by a Boolean value (Boolean: true or false), or by a comparison of numerical values ​​(e.g., a comparison with a predetermined value).

[0262] Software, whether called software, firmware, middleware, microcode, hardware description language, or by other names, should be broadly interpreted as referring to commands, command sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, etc.

[0263] In addition, software, commands, information, etc., can be sent and received via a transmission medium. For example, when software is sent from a webpage, server, or other remote source using at least one of wired technologies (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) etc.) and wireless technologies (infrared, microwave, etc.), at least one of these wired and wireless technologies is included within the definition of a transmission medium.

[0264] The information, signals, etc., described in this disclosure can also be represented using any of a variety of different technologies. For example, the data, commands, instructions, information, signals, bits, symbols, chips, etc., that may be involved in the above description can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination of these.

[0265] Furthermore, the terms used in this disclosure and those necessary for understanding this disclosure may be replaced with terms that have the same or similar meanings. For example, at least one of the channel and symbol may also be a signal (signaling). Additionally, a signal may also be a message. Furthermore, a component carrier (CC) may also be referred to as carrier frequency, cell, frequency carrier, etc.

[0266] The terms “system” and “network” as used in this disclosure are used interchangeably.

[0267] Furthermore, the information, parameters, etc., described in this disclosure can be represented using absolute values, relative values ​​to predetermined values, or other corresponding information. For example, wireless resources can also be indicated using indexes.

[0268] The names used for the above parameters are non-limiting in any respect. Furthermore, the formulas, etc., using these parameters sometimes differ from those explicitly disclosed in this disclosure. Various channels (e.g., PUCCH, PDCCH, etc.) and information elements can be identified by all appropriate names, therefore the various names assigned to these channels and information elements are non-limiting in any respect.

[0269] In this disclosure, the terms "base station (BS)," "wireless base station," "base station device," "fixed station," "NodeB," "eNodeB (eNB)," "gNodeB (gNB)," "access point," "transmission point," "reception point," "transmission / reception point," "cell," "sector," "cell group," "carrier," and "component carrier" are used interchangeably. Sometimes, terms such as macro cell, small cell, femtocell, and picocell are also used to refer to base stations.

[0270] A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, its coverage area can be divided into several smaller areas, each of which can provide communication services through a base station subsystem (e.g., a small indoor base station RRH: Remote Radio Head). Terms such as "cell" or "sector" refer to a portion or all of the coverage area of ​​at least one of the base station and base station subsystem providing communication services within that coverage area.

[0271] In this disclosure, the base station sending information to the terminal can also be replaced by the base station instructing the terminal on information-based control / actions.

[0272] In this disclosure, the terms "Mobile Station (MS)," "User Terminal (user terminal)," "User Equipment (UE)," and "Terminal" can be used interchangeably.

[0273] For mobile stations, those skilled in the art sometimes also use the following terms: subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handheld device, user agent, mobile client, client, or some other appropriate terms.

[0274] At least one of the base station and mobile station can also be referred to as a transmitting device, receiving device, communication device, etc. Furthermore, at least one of the base station and mobile station can also be a device mounted on a mobile body, the mobile body itself, etc. The mobile body refers to an object capable of movement, with arbitrary speed. It also includes situations where the mobile body is stationary. Examples of mobile bodies include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, rear cars, rickshaws, ships (ships and other watercraft), airplanes, rockets, artificial satellites, Drone (registered trademark), multi-rotor helicopters, quadcopter helicopters, balloons, and objects mounted on them. Additionally, the mobile body can also be a mobile body that moves autonomously based on operating commands. It can be a means of transportation (e.g., car, airplane), a mobile body moving in an unmanned manner (e.g., drone, autonomous vehicle), or a robot (humanized or unmanned). Furthermore, at least one of the base station and mobile station also includes devices that do not necessarily move during communication operations. For example, at least one of the base station and the mobile station can be an IoT (Internet of Things) device such as a sensor.

[0275] Furthermore, the base station in this disclosure can also be replaced by a user terminal. For example, the communication between the base station and the user terminal can be replaced by communication between multiple terminals 20 (e.g., D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.), and various forms / implementations of this disclosure can also be applied. In this case, the terminal 20 can also be configured to have the functions of the base station 10 described above. In addition, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "side"). For example, uplink channel, downlink channel, etc. can also be replaced with side channel.

[0276] Similarly, the user terminal in this disclosure can also be replaced by a base station. In this case, the base station can also be configured to have the functions of the aforementioned user terminal.

[0277] The terms "determining" and "determining" as used in this disclosure sometimes encompass a variety of actions. For example, "determining" or "determining" may include actions such as judging, calculating, computing, processing, deriving, investigating, searching (e.g., searching in a table, database, or other data structure), and ascertaining, which are considered as actions of "determining" or "determining." Furthermore, "determining" or "determining" may include actions such as receiving (e.g., receiving information), transmitting (e.g., sending information), inputting, outputting, and accessing (e.g., accessing data in memory), which are considered as actions of "determining" or "determining." Moreover, "determining" or "determining" may include actions such as resolving, selecting, choosing, establishing, and comparing, which are considered as actions of "determining" or "determining." That is, "judgment" and "decision" can include situations where certain actions are regarded as having been "judged" or "decided". In addition, "judgment (decision)" can also be replaced by "assuming", "expecting", "considering", etc.

[0278] The terms “connected,” “coupled,” or any variations thereof are intended to indicate any direct or indirect connection or combination between two or more elements, including cases where there is one or more intermediate elements between the two elements that are “connected” or “coupled.” The combination or connection between elements can be physical, logical, or a combination of these. For example, “access” can be used instead of “connected.” In the context of this disclosure, it can be understood that two elements are “connected” or “coupled” to each other using at least one of one or more wires, cables, and printed electrical connections, and, as some non-limiting and non-inclusive examples, using electromagnetic energy with wavelengths in the wireless frequency domain, microwave region, and light (including both visible and invisible regions) to “connect” or “couple” to each other.

[0279] The reference signal can be simply called RS (Reference Signal), or, depending on the standard applied, pilot.

[0280] As used in this disclosure, the word "based on" does not mean "based on only" unless otherwise expressly stated. In other words, the word "based on" means both "based on only" and "based on at least".

[0281] Any reference to elements using the designations "first," "second," etc., as used in this disclosure does not necessarily limit the number or order of these elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Therefore, references to the first and second elements do not imply that only two elements can be taken, or that in any form the first element must precede the second element.

[0282] Alternatively, the "unit" in the structure of the above devices can be replaced with "section", "circuit", "equipment", etc.

[0283] When the terms "include," "including," and their variations are used in this disclosure, these terms, like the term "comprising," imply inclusion. Furthermore, the term "or" as used in this disclosure does not refer to XOR.

[0284] A radio frame can consist of one or more frames in the time domain. In the time domain, one or more frames can be called subframes. A subframe can also consist of one or more time slots in the time domain. A subframe can be a fixed time length (e.g., 1 ms) independent of the parameter set (numerology).

[0285] A parameter set can be communication parameters applied to at least one of the transmission and reception of a signal or channel. For example, a parameter set can represent at least one of the following: Subcarrier Spacing (SCS), bandwidth, symbol length, cyclic prefix length, Transmission Time Interval (TTI), number of symbols per TTI, radio frame structure, specific filtering processing performed by the transceiver in the frequency domain, and specific windowing processing performed by the transceiver in the time domain.

[0286] In the time domain, a time slot can be composed of one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbols, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols, etc.). A time slot can be a time unit based on a set of parameters.

[0287] A time slot can contain multiple mini-time slots. Each mini-time slot can consist of one or more symbols in the time domain. Additionally, a mini-time slot can also be called a sub-time slot. A mini-time slot can consist of fewer symbols than a time slot. PDSCH (or PUSCH) transmitted in time units larger than mini-time slots can be called PDSCH (or PUSCH) mapping type (type) A. PDSCH (or PUSCH) transmitted using mini-time slots can be called PDSCH (or PUSCH) mapping type (type) B.

[0288] Radio frames, subframes, time slots, mini-time slots, and symbols all represent time units for transmitting signals. Radio frames, subframes, time slots, mini-time slots, and symbols can also be referred to by their respective alternative names.

[0289] For example, one subframe can be called a Transmission Time Interval (TTI), multiple consecutive subframes can also be called a TTI, and one time slot or one mini-time slot can also be called a TTI. That is, at least one of the subframe and TTI can be a subframe (1ms) in existing LTE, a period shorter than 1ms (e.g., symbols 1-13), or a period longer than 1ms. In addition, the unit representing TTI can also be called a time slot, mini-time slot, etc., instead of a subframe.

[0290] Here, TTI refers, for example, to the smallest unit of time for scheduling in wireless communication. For instance, in an LTE system, the base station schedules the allocation of radio resources (bandwidth, transmit power, etc., available to each terminal 20) in units of TTI. However, the definition of TTI is not limited to this.

[0291] The Time Interval (TTI) can be a unit of time for transmitting channel-coded data packets (transmission blocks), code blocks, codewords, etc., or it can be a processing unit such as scheduling or link adaptation. Furthermore, when a TTI is given, the actual time interval (e.g., the number of symbols) that the transmission block, code block, codeword, etc., are mapped to can be shorter than that TTI.

[0292] Furthermore, when one time slot or one mini-time slot is referred to as a TTI, more than one TTI (i.e., more than one time slot or more than one mini-time slot) can also become the minimum time unit for scheduling. In addition, the number of time slots (mini-time slots) constituting the minimum time unit for scheduling can also be controlled.

[0293] A TTI with a duration of 1ms can also be called a normal TTI (TTI in LTE Rel.8-12), a long TTI, a normal subframe, a long subframe, or a time slot. A TTI shorter than a normal TTI can also be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a mini time slot, a sub-time slot, or a time slot.

[0294] In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) can be understood as a TTI with a duration of more than 1ms, and a short TTI (e.g., a shortened TTI, etc.) can be understood as a TTI with a duration of less than a long TTI but more than 1ms.

[0295] A resource block (RB) is a unit of resource allocation in both the time and frequency domains. In the frequency domain, it can contain one or more consecutive subcarriers. The number of subcarriers included in an RB can be the same, independent of the parameter set; for example, it can be 12. The number of subcarriers included in an RB can be determined based on the parameter set.

[0296] Furthermore, the temporal domain of an RB can contain one or more symbols, and can be 1 time slot, 1 mini-time slot, 1 subframe, or 1 TTI in length. 1 TTI, 1 subframe, etc., can each be composed of one or more resource blocks.

[0297] In addition, one or more RBs can also be called Physical Resource Block (PRB), Sub-Carrier Group (SCG), Resource Element Group (REG), PRB pair, RB pair, etc.

[0298] Furthermore, a resource block can consist of one or more resource elements (REs). For example, 1RE can be a radio resource area with 1 subcarrier and 1 symbol.

[0299] The Bandwidth Part (BWP) (also known as partial bandwidth, etc.) can represent a subset of consecutive common resource blocks (RBs) for a given parameter set on a given carrier. Here, common resource blocks can be determined by indices of RBs referenced to a common reference point of that carrier. PRBs can be defined and numbered within a BWP.

[0300] A BWP can include a UL BWP and a DL BWP. For a UE, one or more BWPs can be set within one carrier.

[0301] At least one of the configured BWPs can be active, and it is not assumed that the UE will transmit or receive predetermined signals / channels outside of the active BWP. In addition, "cell", "carrier", etc. in this disclosure can be replaced by "BWP".

[0302] The structures of radio frames, subframes, time slots, mini-time slots, and symbols described above are merely illustrative. For example, the number of subframes contained in a radio frame, the number of time slots in each subframe or radio frame, the number of mini-time slots contained in a time slot, the number of symbols and RBs contained in a time slot or mini-time slot, the number of subcarriers contained in an RB, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, and other structures can be varied in many ways.

[0303] In this disclosure, for example, in cases where articles are added through translation, such as in English (e.g., a, an, and the), this disclosure may also include cases where the noun following these articles is in a plural form.

[0304] In this disclosure, the phrase "A and B are different" can mean "A and B are not the same." Additionally, this phrase can also mean "A and B are each different from C." Terms such as "separate" and "combined" can also be interpreted in the same way as "different."

[0305] The various forms / implementations described in this disclosure can be used individually, in combination, or switched between each other during execution. Furthermore, the notification of predetermined information (e.g., a "It is X" notification) is not limited to being explicit, but can also be implicit (e.g., not notifying the predetermined information).

[0306] The present disclosure has been described in detail above, but it will be clear to those skilled in the art that the present disclosure is not limited to the embodiments described herein. The present disclosure can be implemented as modifications and variations without departing from the spirit and scope of the present disclosure as defined by the claims. Therefore, the present disclosure is for illustrative purposes only and is not intended to be limiting.

[0307] Label Explanation

[0308] 10 base stations

[0309] 110 Dispatch Department

[0310] 120 Receiving Department

[0311] 130 Setting Department

[0312] 140 Control Department

[0313] 20 terminals

[0314] 210 Sending Department

[0315] 220 Receiving Department

[0316] 230 Setting Department

[0317] 240 Control Department

[0318] 1001 processor

[0319] 1002 Storage device

[0320] 1003 Auxiliary storage device

[0321] 1004 Communication device

[0322] 1005 Input Device

[0323] 1006 Output Device

Claims

1. A terminal having: a control section that assumes that a retransmission control process is managed per each of non-continuous frequency resources constituted by a plurality of continuous frequency resources, and that assumes that a number of the retransmission control process is defined in the non-continuous frequency resources or a number associated with the continuous frequency resources is defined in the non-continuous frequency resources; and a transmission section that transmits a terminal capability including a maximum number of the retransmission control processes in the non-continuous frequency resources to a base station.

2. A terminal having: a control section that assumes that a retransmission control process is managed per each of continuous frequency resources constituted by a plurality of continuous frequency resources, and that assumes that a number of the retransmission control process is defined in the continuous frequency resources or a number associated with the continuous frequency resources is defined in the continuous frequency resources; and a transmission section that transmits a terminal capability including a maximum number of the retransmission control processes in the continuous frequency resources to a base station.

3. The terminal according to claim 1 or 2, wherein the terminal further has a reception section that receives a minimum value of indices of a plurality of continuous frequency resources used in data transmission corresponding to the retransmission control process from the base station in a case where the plurality of continuous frequency resources is used in the data transmission.

4. A terminal having: a control section that groups a plurality of continuous frequency resources into a plurality of groups in non-continuous frequency resources constituted by the plurality of continuous frequency resources; and a transmission section that performs data transmission using different methods for data transmission using a plurality of the continuous frequency resources within the group and data transmission using the continuous frequency resources in a plurality of different groups.

5. A base station having: a control section that assumes that a retransmission control process is managed per each of non-continuous frequency resources constituted by a plurality of continuous frequency resources, and that assumes that a number of the retransmission control process is defined in the non-continuous frequency resources or a number associated with the continuous frequency resources is defined in the non-continuous frequency resources; and a reception section that receives a terminal capability including a maximum number of the retransmission control processes in the non-continuous frequency resources from a terminal.

6. A communication method executed by a terminal, the communication method having steps of: assuming that a retransmission control process is managed per each of non-continuous frequency resources constituted by a plurality of continuous frequency resources, and that a number of the retransmission control process is defined in the non-continuous frequency resources or a number associated with the continuous frequency resources is defined in the non-continuous frequency resources; and transmitting a terminal capability including a maximum number of the retransmission control processes in the non-continuous frequency resources to a base station. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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