Terminal, base station, and wireless communication method

Abstract

A terminal is provided with: a control unit for controlling the setting of whether the transmission of a CG PUSCH (Configured Grant Physical Uplink Shared Channel) and / or the reception of an SPS PDSCH (Semi-Persistent Downlink Shared Channel) is carried out in a single code word or in a double code word, and for controlling the setting of whether the transmission of the CG PUSCH (Configured Grant Physical Uplink Shared Channel) and / or the reception of the SPS PDSCH (Semi-Persistent Downlink Shared Channel) is carried out in a single code word or in a double code word, and for controlling the setting of whether the reception of the SPS PDSCH (Semi-Persistent Downlink Shared Channel) is carried out in a single code word or in a double code word; and a transmission / reception unit that transmits the CG PUSCH and / or receives the SPS PDSCH on the basis of the setting by the control unit.

Description

Technical Field

[0001] The present disclosure relates to a terminal, a base station, and a wireless communication method. Background Art

[0002] In the Universal Mobile Telecommunication System (UMTS) network, Long Term Evolution (LTE) has been standardized for the purpose of further high-speed data rates, low latency, etc. In addition, the successor systems of LTE are also being studied for the purpose of further broadband domain and high speed compared to LTE. The successor systems of LTE include, for example, systems called LTE-Advanced (LTE-A), Future Radio Access (FRA), 5th generation mobile communication system (5G), 5G plus (5G+), Radio Access Technology (New-RAT), New Radio (NR), etc.

[0003] In 5G, in order to meet the requirement of achieving a throughput of more than 10 Gbps while keeping the delay between wireless sections to less than 1 ms, research on various wireless technologies and network architectures is underway (for example, non-patent document 1).

[0004] In NR, as an example of various wireless technologies, a method of not performing dynamic scheduling (not being scheduled through dynamic grant) is being studied.

[0005] Prior art literature

[0006] Non-patent literature

[0007] Non-patent document 1: 3GPP TS38.213 V17.0.0 (2022-01)

[0008] Non-patent document 2: 3GPP TS38.331 V17.0.0 (2022-03) Summary of the invention

[0009] Methods to improve communication efficiency without being dynamically scheduled have not been fully studied.

[0010] One aspect of the present disclosure provides a terminal, a base station, and a wireless communication method capable of improving communication efficiency.

[0011] A terminal involved in one embodiment of the present invention comprises: a control unit, which controls: whether the transmission of CG PUSCH (Configured Grant Physical Uplink Schered Channel) and / or the reception of SPS PDSCH (Semi-Persistent Scheduling Downlink Shared Channel) is performed with a single codeword or a two-codeword; and a sending and receiving unit, which performs the transmission of the CG PUSCH and / or the reception of the SPS PDSCH based on the setting of the control unit.

[0012] A wireless communication method involved in one embodiment of the present invention is performed by a terminal that sends and receives extended reality (Extended Reality (XR)) data, which performs the following processing: setting the sending of CG PUSCH (Configured Grant Physical Uplink Schered Channel) and / or the receiving of SPS PDSCH (Semi-Persistent Scheduling Downlink Shared Channel) to be performed with a single codeword or a double codeword; and based on the setting, the CG PUSCH is sent and / or the SPS PDSCH is received. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a diagram for explaining a wireless communication system according to one embodiment.

[0014] Figure 2 This is a block diagram showing an example of the structure of a base station involved in one embodiment.

[0015] Figure 3 This is a block diagram showing an example of the structure of a terminal involved in one embodiment.

[0016] Figure 4 This is a diagram showing an example of HARQ-ACK CB.

[0017] Figure 5 This is a diagram showing an example of the HARQ-ACK CB of Proposal 2.

[0018] Figure 6This is a diagram showing an example of HARQ-ACK CB of Option 2 of Proposal 2.

[0019] Figure 7 This is a diagram showing an example of HARQ-ACK CB of Option 2-1 of Proposal 2.

[0020] Figure 8 This is a diagram showing an example of HARQ-ACK CB of Option 2-2 of Proposal 2.

[0021] Fig. 9 This is a diagram showing an example of HARQ-ACK CB of Option 2-2A of Proposal 2.

[0022] Fig.10 This is a diagram showing an example of HARQ-ACK CB of Option 2-2B of Proposal 2.

[0023] Fig.11 This is a diagram showing an example of HARQ-ACK CB of Option 3 of Proposal 2.

[0024] Fig.12 This is a diagram showing an example of HARQ-ACK CB of Option 4 of Proposal 2.

[0025] Fig.13 This is a diagram showing an example of Proposal 4.

[0026] Fig.14 This is a diagram showing an example of the hardware configuration of a terminal and a base station involved in one embodiment.

[0027] Fig.15 It is a diagram showing an example of the structure of a vehicle in the embodiment of the present invention. DETAILED DESCRIPTION

[0028] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, the embodiment described below is an example, and the embodiment to which the present invention is applied is not limited to the following embodiment.

[0029] In the operation of the wireless communication system according to the embodiment of the present invention, existing technologies are appropriately used. The existing technologies are, for example, existing NR, but are not limited to existing NR.

[0030] In addition, in this specification, terms used in existing NR or LTE specifications such as PUSCH, PDSCH, RRC (Radio Resource Control), MAC (Media Access Control), and DCI (Downlink Control Information) are used, but the channel names, protocol names, signal names, function names, etc. used in this specification may also be referred to by other names.

[0031] <System Structure>

[0032] Figure 1 1 is a diagram for explaining a wireless communication system in an embodiment of the present invention. Figure 1 As shown in FIG. 1 , the wireless communication system in the embodiment of the present invention includes a base station 10 and a terminal 20. Figure 1 Although one base station 10 and one terminal 20 are shown, this is an example and a plurality of base stations 10 and terminals 20 may be provided.

[0033] The wireless communication system may be a wireless communication system that complies with New Radio (NR). In addition, the wireless communication system may also be a wireless communication system that complies with a method called 5G, Beyond 5G, 5G Evolution, or 6G. For example, the wireless communication system may be a wireless communication system that complies with a method called URLLC and / or IIoT.

[0034] In addition, the wireless communication system may also include a next generation radio access network (Next Generation-Radio Access Network (hereinafter, NG-RAN)). NG-RAN includes multiple NG-RAN nodes (NG-RAN Node), specifically including gNB (or ng-eNB), which is connected to a core network (5GC, not shown) that complies with 5G. In addition, NG-RAN and 5GC may also be simply expressed as "network".

[0035] The physical resources of wireless signals are defined in the time domain and the frequency domain. The time domain can also be defined by the number of OFDM symbols, and the frequency domain can also be defined by the number of subcarriers or resource blocks. In addition, the TTI (Transmission Time Interval) in the time domain can also be a time slot, and the TTI can also be a subframe.

[0036] At least one of the base station 10 and the terminal 20 may also support Massive MIMO (Multiple-Input Multiple-Output) for generating a beam (BM) with higher directivity by controlling wireless signals sent from multiple antenna elements. In addition, at least one of the base station 10 and the terminal 20 may also support Carrier Aggregation (CA) for aggregating multiple component carriers (CCs). In addition, at least one of the base station 10 and the terminal 20 may also support Dual Connection (DC) for communication between the terminal 20 and each of the multiple base stations 10.

[0037] The wireless communication system may support a plurality of frequency bands. For example, the wireless communication system supports frequency range (Frequency Range (FR)) 1 and FR 2. The frequency band of each FR is as follows, for example.

[0038] FR1: 410MHz~7.125GHz

[0039] FR2: 24.25 GHz to 52.6 GHz

[0040] In FR1, a sub-carrier spacing (SCS) of 15kHz, 30kHz or 60kHz may be used, and a bandwidth (BW) of 5MHz to 100MHz may be used. FR2 is, for example, a higher frequency than FR1. In FR2, a SCS of 60kHz or 120kHz may be used, and a bandwidth (BW) of 50MHz to 400MHz may be used. In addition, a 240kHz SCS may also be included in FR2.

[0041] The wireless communication system in this embodiment may also support a frequency band higher than the frequency band of FR2. For example, the wireless communication system in this embodiment may support a frequency band exceeding 52.6 GHz and up to 114.25 GHz. Such a high frequency band may also be referred to as "FR2x".

[0042] In addition, Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM) / Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) with a sub-carrier spacing (SCS) larger than the above example can also be applied. In addition, DFT-S-OFDM can be applied to both the uplink and the downlink, or to either one.

[0043] In a wireless communication system, a time division duplex (TDD) time slot configuration pattern can be set. For example, in the time slot configuration pattern, a time slot for transmitting a DL signal, a time slot for transmitting a UL signal, a time slot in which a DL signal, a UL signal, and a guard symbol are mixed, and a pattern for flexibly changing the order of two or more time slots in the time slot of a signal to be transmitted can be specified.

[0044] In addition, in a wireless communication system, a demodulation reference signal (DMRS) can be used to perform channel estimation of PUSCH (or PUCCH (Physical Uplink Control Channel)) in each time slot, and DMRS respectively assigned to multiple time slots can be used to perform channel estimation of PUSCH (or PUCCH). Such channel estimation may also be referred to as joint channel estimation. Alternatively, it may be called by other names such as cross-slot channel estimation. In this case, the terminal 20 can send the DMRS assigned to each of the multiple time slots in multiple time slots so that the base station 10 can perform joint channel estimation using DMRS.

[0045] Furthermore, in the wireless communication system, an enhanced function may be added to the feedback function from the terminal 20 to the base station 10. For example, an enhanced function of the terminal feedback for HARQ-ACK (Hybrid automatic repeat request Acknowledgement) may be added.

[0046] The base station 10 is a communication device that provides one or more cells and performs wireless communication with the terminal 20. The base station 10 may also be referred to as an NG-RAN node, ng-eNB, eNodeB (eNB), or gNodeB (gNB). In addition, the base station 10 may also be understood as a device included in the network to which the terminal 20 is connected.

[0047] The base station 10 can perform carrier aggregation for aggregating a plurality of cells (a plurality of CCs (component carriers)) to communicate with the terminal 20. In carrier aggregation, one primary cell (PCell, Primary Cell) and one or more secondary cells (SCell, Secondary Cell) are used.

[0048] The base station 10 sends a synchronization signal and system information to the terminal 20. The synchronization signal is, for example, NR-PSS and NR-SSS. In addition, the synchronization signal may also be SSB. The system information is sent, for example, via NR-PBCH or PDSCH, and is also called broadcast information. Figure 1 As shown, the base station 10 sends a control signal or data to the terminal 20 via DL, and receives a control signal or data from the terminal 20 via UL. In addition, here, the signal sent via a control channel such as PUCCH and PDCCH is called a control signal, and the signal sent via a shared channel such as PUSCH and PDSCH is called data, but this method of naming is an example.

[0049] The terminal 20 is a communication device having a wireless communication function, such as a smart phone, a mobile phone, a tablet computer, a wearable terminal, or a communication module for M2M (machine-to-machine) communication. Figure 1 As shown, the terminal 20 receives control signals or data from the base station 10 via DL and transmits control signals or data to the base station 10 via UL, thereby utilizing various communication services provided by the wireless communication system. The terminal 20 may also be referred to as a user equipment (UE).

[0050] Furthermore, the terminal 20 may notify the base station 10 of terminal capability information (UE capability) that defines information related to the capability of the terminal.

[0051] Next, the configuration of the base station 10 and the terminal 20 is described. In addition, the configuration of the base station 10 and the terminal 20 described below represents an example of functions associated with the present embodiment. The base station 10 and the terminal 20 may also have functions not shown in the figure. In addition, as long as the functions are functions for performing the operations involved in the present embodiment, the function division and / or the name of the functional unit are not limited.

[0052] <Base station structure>

[0053] Figure 2 1 is a block diagram showing an example of the structure of the base station 10 involved in this embodiment. The base station 10 includes, for example, a transmitting unit 101, a receiving unit 102, and a control unit 103. The base station 10 communicates with the terminal 20 (see Figure 3 ) communication.

[0054] The transmission unit 101 transmits a DL signal to the terminal 20. For example, the transmission unit 101 transmits the DL signal under the control of the control unit 103.

[0055] The DL signal may include, for example, a downlink data signal and control information (e.g., DCI). In addition, the DL signal may include information indicating scheduling related to signal transmission by the terminal 20 (e.g., UL permission). In addition, the DL signal may also include high-level control information (e.g., control information of Radio Resource Control (RRC)). In addition, the DL signal may also include a reference signal.

[0056] The channels used in the transmission of DL signals include, for example, data channels and control channels. For example, the data channel may include PDSCH (Physical Downlink Shared Channel), and the control channel may include PDCCH (Physical Downlink Control Channel). For example, the base station 10 uses PDCCH to send control information to the terminal 20, and uses PDSCH to send downlink data signals.

[0057] The reference signals included in the DL signal may include, for example, at least one of a demodulation reference signal (Demodulation Reference Signal (DMRS)), a phase tracking reference signal (Phase Tracking Reference Signal (PTRS)), a channel state information reference signal (CSI-RS), a sounding reference signal (SRS), and a positioning reference signal (Positioning Reference Signal (PRS)) for position information. For example, reference signals such as DMRS and PTRS are used for demodulation of downlink data signals and are transmitted using PDSCH.

[0058] The receiving unit 102 receives the UL signal transmitted from the terminal 20. For example, the receiving unit 102 receives the UL signal under the control of the control unit 103.

[0059] The control unit 103 controls the communication operation of the base station 10 including the transmission process of the transmission unit 101 and the reception process of the reception unit 102 .

[0060] For example, control section 103 acquires information such as data and control information from the upper layer, and outputs it to transmission section 101. Control section 103 also outputs data and control information received from reception section 102 to the upper layer.

[0061] For example, the control unit 103 allocates resources (or channels) for transmitting and receiving DL signals and / or resources for transmitting and receiving UL signals based on signals (e.g., data and control information, etc.) received from the terminal 20 and / or data and control information acquired from a higher layer. Information related to the allocated resources may be included in the control information sent to the terminal 20.

[0062] In particular, the control unit 103 determines the transmission method of the PDSCH and / or the transmission method of the PUSCH (the reception method in the base station 10), generates information related to the determined transmission method, and transmits the information from the transmission unit 101. In addition, the control unit 103 performs transmission control and / or reception control based on the determined transmission method of the PDSCH and / or the transmission method of the PUSCH. For example, the control unit 103 may also receive feedback information (e.g., HARQ-ACK) generated based on the transmission method of the PDSCH via the reception unit 102, and perform retransmission control based on the feedback information.

[0063] <Terminal structure>

[0064] Figure 3 2 is a block diagram showing an example of the configuration of the terminal 20 according to the present embodiment. The terminal 20 includes, for example, a receiving unit 201, a transmitting unit 202, and a control unit 203. The terminal 20 communicates with the base station 10, for example, wirelessly.

[0065] The receiving unit 201 receives a DL signal transmitted from the base station 10. For example, the receiving unit 201 receives the DL signal under the control of the control unit 203.

[0066] The transmitting unit 202 transmits the UL signal to the base station 10. For example, the transmitting unit 202 transmits the UL signal under the control of the control unit 203.

[0067] The UL signal may include, for example, an uplink data signal and control information (eg, UCI). For example, it may include information related to the processing capability of the terminal 20 (eg, UE capability). In addition, the UL signal may also include a reference signal.

[0068] The channels used for transmitting UL signals include, for example, data channels and control channels. For example, the data channel includes PUSCH (Physical Uplink Shared Channel), and the control channel includes PUCCH (Physical Uplink Control Channel). For example, the terminal 20 uses PUCCH to receive control information from the base station 10, and uses PUSCH to transmit uplink data signals.

[0069] The reference signal included in the UL signal may include, for example, at least one of DMRS, PTRS, CSI-RS, SRS, and PRS. For example, reference signals such as DMRS and PTRS are used for demodulation of uplink data signals and are transmitted using an uplink channel (e.g., PUSCH).

[0070] The control unit 203 controls the communication operation of the terminal 20 including the reception process in the reception unit 201 and the transmission process in the transmission unit 202 .

[0071] For example, control section 203 acquires information such as data and control information from the upper layer, and outputs it to transmission section 202. Also, control section 203 outputs data and control information received from reception section 201, for example, to the upper layer.

[0072] For example, the control unit 203 controls the sending of information fed back to the base station 10. The information fed back to the base station 10 may include, for example, HARQ-ACK, channel state information (CSI), and scheduling request (SR). The information fed back to the base station 10 may be included in UCI. UCI is sent in the resources of PUCCH.

[0073] In particular, the control unit 203 acquires information related to the transmission method of the PDSCH (the reception method in the terminal 20) and / or the transmission method of the PUSCH, and performs transmission control and / or reception control based on the acquired information. For example, the control unit 203 may also perform the following control: generate feedback information (e.g., HARQ-ACK) based on the transmission method of the PDSCH, and send the generated feedback information via the transmission unit 202.

[0074] In addition, the channels used for sending DL signals and the channels used for sending UL signals are not limited to the above examples. For example, the channels used for sending DL signals and the channels used for sending UL signals may include RACH (Random Access Channel) and PBCH (Physical Broadcast Channel). RACH can be used, for example, to send DCI containing a Random Access Radio Network Temporary Identifier (RA-RNTI).

[0075] <CG PUSCH>

[0076] Next, the CG PUSCH is described. The CG PUSCH is a method of using the PUSCH to perform UL transmission based on the UL grant configured by the higher layer (for example, it may also be called a configured grant, a configured UL grant, etc.). With respect to the CG PUSCH, UL resources have been allocated to the terminal 20, and the terminal 20 can spontaneously (actively) perform UL transmission using the configured resources, so low-latency communication can be expected.

[0077] In Release 16, two types of CG PUSCH, Type 1 and Type 2, are specified.

[0078] The activation / deactivation of Type 1CG PUSCH depends only on RRC-configuration and not on DCI. In Type 1CG PUSCH, the parameters used in uplink transmission (also referred to as CG parameters, CG structure (Configured Grant Configuration) information, etc.) are set to the terminal 20 using only high-level signaling. Specifically, the parameters of Type 1CG PUSCH are provided by "ConfiguredGrantConfig", "pusch-Config" and "rrc-ConfiguredUplinkGrant". That is, the base station 10 uses "ConfiguredGrantConfig", "pusch-Config" and "rrc-ConfiguredUplinkGrant" to indicate the parameters of uplink transmission to the terminal 20. The terminal 20 stores the received parameters as a configuration grant.

[0079] When type 1CG PUSCH is activated, the terminal 20 may determine that one or more set permissions are triggered (or activated), and use the set resources (also referred to as CG resources, transmission opportunities, etc.) to send PUSCH without dynamic permission.

[0080] The activation / deactivation of Type 2CG PUSCH depends on RRC-configuration and DCI. One DCI can activate only one CG PUSCH and can deactivate multiple CG PUSCHs. In Type 2CG PUSCH, the parameters used in uplink transmission are set to the terminal 20 using high-layer signaling. In addition, a part of the parameters used in uplink transmission is notified to the terminal through DCI. Specifically, the transmission parameters of Type 2CG PUSCH are provided by "ConfiguredGrantConfig", "pusch-Config" and "activation DCI". That is, the base station 10 uses "ConfiguredGrantConfig", "pusch-Config" and "activation DCI" to indicate the parameters of uplink transmission to the terminal 20. The terminal 20 stores the received parameters.

[0081] When the type 2CG PUSCH is activated and the activation DCI is notified, the terminal 20 may also determine that one or more setting permissions are triggered (or activated), and use the resources set by the higher layer to send PUSCH without dynamic permission. The activation DCI may also be CRC (Cyclic Redundancy Check) scrambled by a specific identifier (for example, CS-RNTI: Configured Scheduling RNTI). In addition, the activation DCI may also be used to control the deactivation and retransmission of the setting permission.

[0082] In addition, the terminal 20 may also release (also referred to as release, deactivate, etc.) the resources (PUSCH) corresponding to the setting permission based on the DCI that deactivates the setting permission or the expiration of a specific timer (the passage of a specific time). In addition, hereinafter, the setting of CG PUSCH is sometimes briefly recorded as "CG setting (CG configuration)".

[0083] <SPS PDSCH>

[0084] Next, the SPS PDSCH is described. In the SPS PDSCH, periodic resources for Semi-Persistent Scheduling (SPS) for downlink (DL) are set by the higher layer. The activation / deactivation (release) of the transmission using the resources in the SPS PDSCH depends on the activation DCI. The activation DCI can be scrambled by CRC (Cyclic Redundancy Check) by a specific identifier (for example, CS-RNTI: Configured Scheduling RNTI).

[0085] In SPS PDSCH, the parameters used in downlink transmission (which may also be referred to as SPS parameters, SPS structure (Semi-Persistent Scheduling configuration) information, etc.) are set to the terminal 20 using high-layer signaling. In addition, a part of the parameters used in downlink transmission is notified to the terminal through DCI. Specifically, the transmission parameters of SPS PDSCH are provided by "sps-Config" and "activation DCI". That is, the base station 10 uses "sps-Config" and "activation DCI" to indicate the parameters of downlink transmission to the terminal 20. The terminal 20 stores the received parameters. In addition, below, the setting of SPS PDSCH is sometimes briefly recorded as "SPS setting (SPS configuration)".

[0086] <CG PUSCH parameters>

[0087] The parameters in ConfiguredGrantConfig for Type 1 and / or Type 2 CG PUSCH (hereinafter referred to as "CGC-CG parameters (group)") include, for example, the following. In addition, when the CGC-CG parameters are provided by both ConfiguredGrantConfig and pusch-Config, the terminal 20 may apply the CGC-CG parameters shown in ConfiguredGrantConfig to PUSCH transmission. In addition, in the presence of CGC-CG parameters not provided by ConfiguredGrantConfig, the terminal 20 may apply the CGC-CG parameters shown in pusch-Config to PUSCH transmission.

[0088] (Example of CGC-CG parameters)

[0089] Periodicity: This field indicates the period of PUSCH transmission corresponding to the configured grant.

[0090] repK: used to indicate the number of repeated PUSCH transmissions.

[0091] repK-RV: used to indicate information related to the redundancy version (Redundancy Version) of repeated PUSCH transmission.

[0092] frequencyHopping: used to enable either intra-slot frequency hopping or inter-slot frequency hopping. If this field does not exist, frequency hopping may not be applied.

[0093] cg-DMRS-Configuration: This field indicates the DMRS configuration of the PUSCH corresponding to the configured grant.

[0094] mcs-Table: used to indicate the MSC table used in the PUSCH without transform precoding by the terminal 20. When this field does not exist, the terminal 20 may also use the 64QAM table.

[0095] mcs-TableTransformPrecoder: used to indicate the MSC table used in the PUSCH with transform precoding by the terminal 20. When this field does not exist, the terminal 20 may also use the 64QAM table.

[0096] uci-OnPUSCH: used to indicate information related to transmission of UCI using PUSCH.

[0097] resourceAllocation: used to indicate whether any one of 'resource allocation type 0', 'resource allocation type 1', and 'dynamic switching' is set.

[0098] rbg-Size: used to indicate the RBG size of PUSCH.

[0099] powerControlLoopToUse: used to indicate the closed control loop to be applied to PUSCH transmission.

[0100] p0-PUSCH-Alpha: used to calculate PUSCH transmit power.

[0101] ·transformPrecoder: used to indicate whether transform precoding is selected for PUSCH transmission.

[0102] phy-PriorityIndex: used to indicate the PHY priority of CGPUSCH in at least the collision handling of the PHY layer. In addition, the value p0 indicates a low priority, and the value p1 indicates a high priority.

[0103] cg-nrofHARQ-Process: used to indicate the HARQ process number.

[0104] cg-nrofSlots: used to indicate the number of allocated time slots set in the grant period immediately following the time instance set in the grant offset.

[0105] betaOffsetCG-UCI: used to indicate the beta offset of the CG-UCI in the CG-PUSCH.

[0106] · configuredGrantTimer: used to indicate the initial value of the configured grant timer by a multiple of the periodicity. When cg-RetransmissionTimer is set, if the HARQ process is shared between different configured grants on the same BWP, the same value is set for the configuration of the HARQ process sharing the BWP in the periodicity of configuredGrantTimer.

[0107] The parameters in rrc-ConfiguredUplinkGrant for Type 1 CG PUSCH (hereinafter referred to as "rrc-CUG-CG parameter (group)") include, for example, the following: rrc-ConfiguredUplinkGrant is used to indicate information of a grant configured in Type 1 CG PUSCH.

[0108] (rrc-CUG-CG parameter example)

[0109] timeDomainOffset: used to represent the offset associated with system frame number 0.

[0110] timeDomainAllocation: used to indicate the combination of PUSCH mapping type, PUSCH start symbol and the number of consecutive allocated symbols.

[0111] frequencyDomainAllocation: used to indicate the frequency resource allocation of PUSCH.

[0112] antennaPort: used to indicate the antenna port information for PUSCH transmission.

[0113] dmrs-SeqInitialization: An identifier used for scrambling the DMRS sequence for PUSCH transmission.

[0114] precodingAndNumberOfLayers: used to indicate the precoding and number of layers used for PUSCH transmission.

[0115] srs-ResourceIndicator: used to indicate the SRS (Sounding Reference Signal) resource being used.

[0116] mcsAndTBS: used to indicate the modulation order, target coding rate, and transport block size.

[0117] frequencyHoppingOffset: used to indicate the value of frequency hopping offset.

[0118] ·pathlossReferenceIndex: used to indicate the reference signal used for PUSCH path loss estimation.

[0119] pusch-RepTypeIndicator: used to indicate whether the terminal 20 follows the operation for PUSCH repetition type A or the operation for PUSCH repetition type B for each Type1 configured grant configuration. The value pusch-RepTypeA enables "PUSCH repetition type A", and the value pusch-RepTypeB enables "PUSCH repetition type B".

[0120] frequencyHoppingPUSCH-RepTypeB: This field indicates the frequency hopping method of Type 1CG when pusch-RepTypeIndicator is set to "pusch-RepTypeB". The value interRepetition enables "inter-repetition frequency hopping", and the value interSlot enables "inter-slot frequency hopping". If this field does not exist, frequency hopping is not enabled in Type 1CG.

[0121] The parameters indicated by the activation DCI for Type 2CG PUSCH (hereinafter referred to as "DCI-CG parameters (group)") include, for example, the following.

[0122] (Example of DCI-CG parameters)

[0123] timeDomainAllocation: used to indicate the combination of the start symbol and length and the PUSCH mapping type.

[0124] frequencyDomainAllocation: used to indicate resource allocation in the frequency domain.

[0125] MCS index: an index used to indicate MCS (Modulation and Coding Scheme).

[0126] Antenna port indication: used to indicate the antenna port.

[0127] Precoding and number of layers indication: used to indicate precoding and number of layers.

[0128] SRS resource indicator: used to indicate the resources used for SRS (Sounding Reference Signal).

[0129] Power control related parameter indication: used to indicate parameters related to transmit power control.

[0130] <SPS PDSCH parameters>

[0131] The parameters in SPS-Config for SPS PDSCH (hereinafter referred to as "SC-SPS parameter (group)") include, for example, the following.

[0132] (Example of SC-SPS parameters)

[0133] Periodicity: used to indicate the period of SPS PDSCH.

[0134] n1PUCCH-AN: used to indicate HARQ-ACK (Hybrid automatic repeat request Acknowledgement) PUCCH resource for SPS PDSCH.

[0135] mcs-Table: used to indicate the MCS table applied to the reception of the SPS PDSCH.

[0136] pdsch-AggregationFactor: used to indicate the number of repeated PDSCH transmissions.

[0137] The parameters indicated by the activation DCI for the SPS PDSCH (hereinafter referred to as "DCI-SPS parameter (group)") include, for example, the following.

[0138] (Example of DCI-SPS parameters)

[0139] timeDomainAllocation: used to indicate the combination of the start symbol and length and the PDSCH mapping type.

[0140] frequencyDomainAllocation: used to indicate resource allocation in the frequency domain.

[0141] MCS index: an index used to indicate MCS (Modulation and Coding Scheme).

[0142] TCI state indication: used to indicate the state of TCI (Transmission Configuration Indicator) for PDSCH.

[0143] Antenna port indication: used to indicate the antenna port.

[0144] Priority of HARQ-ACK: used to indicate the priority of HARQ-ACK.

[0145] K1: indicates the number of slots from the slot in which data is scheduled on the PDSCH to the slot in which HARQ-ACK for the PDSCH is transmitted.

[0146] <Other parameters>

[0147] Parameters other than the above (hereinafter referred to as "other-CG / SPS parameter (group)") notified from the base station 10 to the terminal 20 include, for example, the following.

[0148] (Example of other-CG / SPS parameters)

[0149] PDSCH / PUSCH length: used to indicate the length of PDSCH and / or PUSCH.

[0150] Number of PRBs: used to indicate the number of PRBs (Physical Resource Blocks).

[0151] <How this disclosure was obtained>

[0152] In NR, as an example of scheduling different from dynamic scheduling, PUSCH (CG PUSCH) based on CG (configuration grant) in the uplink (UL) is being studied, and PDSCH (SPS PDSCH) based on SPS (Semi-Persistent Scheduling) in the downlink (DL) is being studied.

[0153] In Release 16, the configuration of CG PUSCH (Configured Grant Physical Uplink Shared Channel) and the configuration of SPS PDSCH (Semi-Persistent Scheduling Downlink Shared Channel) are specified (for example, Non-Patent Document 2).

[0154] Furthermore, Release 16 stipulates that the parameters of the CG PUSCH and the parameters of the SPS PDSCH are determined by RRC (Radio Resource Control) configuration and activation of DCI (Downlink Control Information).

[0155] In addition, in NR, in Release 17, various technologies related to the method called Ultra-Reliable and Low Latency Communications (URLLC) and Industrial Internet of Things (IIoT) are being studied.

[0156] In version 17, we are studying extended reality (XR), such as virtual reality (VR) and mixed reality (MX), and studying the scenarios, requirements, key performance indicators (KPIs), and evaluation methods of XR. As the requirements for setting the goal of XR, we consider capacity, latency, mobility, and energy saving. Furthermore, the above research will continue in version 18.

[0157] As a research project related to XR, we are studying matters related to the improvement of XR-specific capacity. In this research, we are studying a mechanism to provide more efficient resource allocation and scheduling for the characteristics of XR services. Here, the so-called characteristics of XR services are periodicity, multi-stream, jitter, delay, reliability and other characteristics. For example, in this research, we expect the expansion of SPS and CG, as well as dynamic scheduling and permission expansion.

[0158] The following describes the extension of applying CBG (Code Block Group) and the extension of applying 2 TBs (Transport Blocks) as an example of the extension of SPS and CG. In addition, the so-called TB is a unit of information bit sequence, for example, it can also be a unit of information bit sequence allocated to 1 subframe, or at least one of the units of scheduling. When the TBS (Transport Block Size) exceeds a specific threshold (for example, 6144 bits), the TB is divided into one or more segments (code blocks) and encoded in segments (code block segmentation: code block segmentation). Each code block is connected to a CW (code word). Scrambling, data modulation, etc. are performed on the code word. In the case where a TB is composed of one or more code blocks, it is assumed that at least one of a code block, a CBG containing multiple code blocks, a TB, and multiple bundled TBs is used as a retransmission control unit. The terminal performs error detection for each retransmission control unit, generates bits indicating A / N (hereinafter also referred to as HARQ-ACK bits), and feeds back (transmits) the bits to the wireless base station.

[0159] First, the downlink transmission and uplink transmission using CBG, and the HARQ-ACK CB using CBG are described. Next, the two TBs and the SPS HARQ-ACK are described. In addition, in the following description, the downlink transmission and uplink transmission using CBG are respectively recorded as CBG-based PDSCH transmission (CBG based PDSCH transmission) and CBG-based PUSCH transmission (CBG based PUSCH transmission). In addition, PDSCH transmission (PDSCH transmission) is an action on the base station side, and on the other hand, the terminal performs a PDSCH reception action in the downlink. Therefore, PDSCH transmission (PDSCH transmission) can also be understood as PDSCH reception (PDSCH reception) in the terminal. For example, the terminal supporting CBG-based PDSCH transmission can also be understood as the terminal supporting CBG-based PDSCH reception (CBG based PDSCH reception).

[0160] (PDSCH transmission based on CBG)

[0161] CBG-based PDSCH transmission is shown in Section 5.1.7 of TS 38.214. CBG-based PDSCH transmission and feedback of HARQ-ACK for CBG-based PDSCH transmission are not supported in the following three situations, namely, the situation of SPSPDSCH, the situation of PDSCH scheduled by DCI 1_0 or DCI 1_2, and the situation of more than one PDSCH scheduled by DCI 1_1 when DCI 1_1 can schedule multiple PDSCHs.

[0162] On the other hand, CBG-based PDSCH transmission and HARQ-ACK feedback for CBG-based PDSCH transmission are supported when one PDSCH is scheduled. The so-called scheduling of one PDSCH is, for example, when DCI 1_1 can only schedule one PDSCH and the PDSCH is scheduled through DCI 1_1 when "PDSCH-CodeBlockGroupTransmission" is set in the serving cell.

[0163] (PUSCH transmission based on CBG)

[0164] CBG-based PUSCH transmission is shown in Section 6.1.5 of TS 38.214. CBG-based PUSCH transmission is not supported in the following three situations, namely, the situation of CG PUSCH, the situation of PUSCH scheduled by DCI 0_0 or DCI 0_2, the situation of more than one PUSCH scheduled by DCI 0_1 when SCS is 480kHz or 960kHz and DCI 0_1 can schedule multiple PUSCHs, and the situation of multiple PUSCHs scheduled by DCI 0_1 when SCS is 120kHz and DCI 0_1 schedules multiple PUSCHs.

[0165] On the other hand, CBG-based PUSCH transmission is supported in the case of scheduling a specific PUSCH and in the case of scheduling specific multiple PUSCHs. The so-called case of scheduling a specific PUSCH is, for example, a case where DCI 0_1 can only schedule one PDSCH, and a PDSCH is scheduled through DCI 0_1 when "PUSCH-CodeBlockGroupTransmission" is set in the serving cell. In addition, the so-called case of scheduling specific multiple PUSCHs is, for example, a case where the SCS is 120kHz, and although DCI 0_1 can schedule multiple PUSCHs, DCI 0_1 only schedules one PUSCH, and a PUSCH is scheduled through DCI 0_1 when "PUSCH-CodeBlockGroupTransmission" is set in the serving cell.

[0166] (CBG based HARQ-ACK CB)

[0167] The operation of determining the CBG based HARQ-ACK codebook (CB) is shown in Section 9.1.1 of TS 38.213. When the terminal is given "PDSCH-CodeBlockGroupTransmission" for the serving cell, the terminal receives the PDSCH scheduled by DCI 1_1. The received PDSCH contains one or more CBGs for the TB. In addition, the terminal is given "maxCodeBlockGroupsPerTransportBlock". "maxCodeBlockGroupsPerTransportBlock" indicates the maximum number of CBGs used to generate HARQ-ACK information bits received for the TBs in the serving cell.

[0168] (two-TB)

[0169] 2-TB (two-TB) is shown in Section 5.1.3.2 of TS 38.214, etc. In Rel-15 / 16 / 17, two-codeword transmission is supported for PDSCH scheduled by DCI 1_1. On the other hand, two-codeword transmission is not supported for SPS PDSCH. In addition, two-codeword transmission is not supported for PDSCH scheduled by DCI 1_0 or DCI 1_2. In addition, two-codeword transmission for PUSCH is being studied in MIMO of Rel-18.

[0170] In the case where the high-level parameter "maxNrofCodeWordsScheduledByDCI" indicates that two codeword transmission is enabled, for the corresponding TB, if the parameter I indicating the MCS is MCS =26, indicating the parameter rv of RV id =1, one of the two TBs becomes invalid (disabled) through DCI 1_1. When both TBs are valid, the two TBs (TB1 and TB2) are mapped to CW0 and CW1, respectively. In addition, when only one TB is valid, the valid TB is always mapped to the initial CW. That is, DCI can also dynamically invalidate one TB when a maximum of two codewords are sent and become valid through RRC. In addition, DCI 1_1 has fields indicating MCS, NDI, and RV for each TB.

[0171] (Type 2 SPS HARQ-ACK CB)

[0172] Assume that HARQ-ACK feedback for one or more SPS PDSCH receptions (SPS PDSCH reception) and HARQ-ACK feedback for which the corresponding PDCCH does not exist is multiplexed with HARQ-ACK feedback for dynamically scheduled PDSCH and / or SPS PDSCH release (SPS PDSCH release). In this case, HARQ-ACK feedback for one or more SPS PDSCH receptions and HARQ-ACK feedback for which the corresponding PDCCH does not exist is appended after the HARQ-ACK feedback for the dynamically scheduled PDSCH and / or SPS PDSCH release.

[0173] Figure 4 is a diagram showing an example of a HARQ-ACK CB. Figure 4 , "HARQ-ACK for TB based DG PDSCH", "HARQ-ACK for CBG based DG PDSCH" and "HARQ-ACK for SPS PDSCH" included in the HARQ-ACK CB are shown in sequence. In addition, Figure 4 The horizontal direction of represents the order (or configuration order) specified in the data structure of HARQ-ACK CB. Figure 4 In the example of , in HARQ-ACK CB, "HARQ-ACK for DGPDSCH based on TB" is arranged first, and then "HARQ-ACK for DG PDSCH based on CBG" is arranged. In addition, this order may not correspond to the processing order of HARQ-ACK and the sending order of HARQ-ACK.

[0174] "HARQ-ACK for TB-based DG PDSCH" corresponds to the codebook of HARQ-ACK for TB-based DG PDSCH (TB based DGPDSCH), "HARQ-ACK for CBG-based DG PDSCH" corresponds to the codebook of HARQ-ACK for CBG-based DG PDSCH (CBG based DG PDSCH), and "HARQ-ACK for SPS PDSCH" corresponds to the codebook of HARQ-ACK for SPS PDSCH.

[0175] In addition, a part of the HARQ-ACK CB may also be referred to as a sub-codebook. In addition, for example, a structure that is a part of the HARQ-ACK CB and includes HARQ-ACK information may also be replaced with other expressions indicating the location where the information is stored (for example, other expressions such as a field, a segment, or a slot). In addition, the structure included in the sub-codebook may sometimes be recorded as a field below.

[0176] In addition, if Figure 4As shown, in "HARQ-ACK for SPS PDSCH", for each index of the SPS setting of a certain serving cell index, the HARQ-ACK information (eg, bits) is sorted in ascending order of the index of the DL time slot. Figure 4 In the example, in "SPS configuration index #1" of "Cell index #1", fields such as "DL slot index #n" and "DL slot index #n+i" are arranged in sequence. In addition, "Cell index #1" is a field containing the HARQ-ACK corresponding to index #1 of the serving cell, "SPS configuration index #1" is a field containing the HARQ-ACK corresponding to index #1 of the SPS configuration, and "DL slot index #n" is a field containing the HARQ-ACK corresponding to index #n of the DL slot.

[0177] In addition, including Figure 4 In the various figures of and the following descriptions, "#X" represents an index. X can be an integer greater than 0 or an integer greater than 1. In addition, in the following descriptions, in examples where the index is not a number, the indexes of adjacent fields can be either continuous or discontinuous values. Figure 4 The number of fields in each figure is an example, and the present disclosure is not limited to this. For example, the number of fields included in a certain CB or subcodebook may also be one.

[0178] Next, for each serving cell index, the HARQ-ACK information is sorted in ascending order of the index set by the SPS. Figure 4 In the example, in "Cell index #1", fields such as "SPS configuration index #1", "SPS configuration index #2", etc. are arranged in sequence.

[0179] Next, the HARQ-ACK information is sorted in ascending order of the serving cell index. Figure 4 In the example of , in "HARQ-ACK for SPS PDSCH", fields such as "Cell index #1 (Cell index #1)", "Cell index #2 (Cell index #2)" and the like are arranged in sequence.

[0180] As mentioned above, in NR, for dynamically scheduled PDSCH and PUSCH, CBG-based PDSCH transmission, CBG-based PUSCH transmission and two-codeword PDSCH are supported. As a result, in the case of dynamically scheduled PDSCH and PUSCH, it is possible to expect an improvement in communication efficiency.

[0181] In Rel-18, for XR services, considering the situation where SPS PDSCH is used to send TBs with large packet sizes, it is desired to support SPS PDSCH transmission with CBG applied or CG PUSCH transmission with CBG applied, as well as SPS PDSCH transmission with two-codeword applied or CG PUSCH transmission with two-codeword applied.

[0182] In addition, below, SPS PDSCH transmission using CBG is sometimes recorded as “SPS PDSCH transmission based on CBG (CBG based SPS PDSCH transmission)”, and CG PUSCH transmission using CBG is sometimes recorded as “CG PUSCH transmission based on CBG (CBG based CG PUSCH transmission)”. In addition, they are sometimes combined and recorded as “CG PUSCH / CG PUSCH transmission based on CBG (CBG based CG PUSCH / CG PUSCH transmission)”.

[0183] In addition, SPS PDSCH transmission using dual codewords may be recorded as "two-codeword SPS PDSCH transmission (two-codeword SPS PDSCH transmission)", and CG PUSCH transmission using dual codewords may be recorded as "two-codeword CG PUSCH transmission (two-codeword CG PUSCH transmission)".

[0184] One method of the present disclosure describes a method for improving communication efficiency by applying CBG and / or 2TB in SPS and CG as an example of scheduling different from dynamic scheduling.

[0185] <Proposal 1>

[0186] In Proposal 1, a judgment criterion for the terminal 20 to set whether to apply CBG based SPS PDSCH / CG PUSCH transmission (CBG based SPS PDSCH / CG PUSCH transmission) or TB based SPS PDSCH / CG PUSCH transmission (TB based SPS PDSCH / CG PUSCH transmission).

[0187] (Alt1)

[0188] In Alt 1, the terminal 20 sets whether to apply CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CG PUSCH transmission based on an existing high-level parameter (RRC parameter) which is setting information for enabling CBG-based transmission in DG PDSCH / DG PUSCH, for example, PDSCH-CodeBlockGroupTransmission for SPS PDSCH / PUSCH-CodeBlockGroupTransmission for CG PUSCH.

[0189] For example, when PDSCH-CodeBlockGroupTransmission is configured for the serving cell, the terminal 20 may apply CBG-based SPS PDSCH transmission for all SPS settings on the serving cell, and in other cases, apply TB-based SPS PDSCH transmission (TB based SPS PDSCH transmission). Similarly, when PUSCH-CodeBlockGroupTransmission is configured for the serving cell, the terminal 20 may apply CBG-based CG PUSCH transmission for all CG settings on the serving cell, and in other cases, apply TB-based CG PUSCH transmission (TB based CG PUSCH transmission).

[0190] According to Alt 1, the existing RRC parameters are used to determine whether or not to apply CBG-based SPS PDSCH / CG PUSCH transmission, thereby reducing signaling overhead.

[0191] (Alt 2)

[0192] In Alt 2, the terminal 20 sets which of CBG-based SPS PDSCH / CG PUSCH transmission and TB-based SPS PDSCH / CG PUSCH transmission to apply based on other high-level parameters (RRC parameters) in PDSCH-ServingCellConfig or PUSCH-ServingCellConfig, for example, SPS-PDSCH-codeBlockGroupTransmission / CG-PUSCH-codeBlockGroupTransmission, as setting information for enabling CBG-based transmission in SPS PDSCH / CG PUSCH.

[0193] For example, when SPS-PDSCH-codeBlockGroupTransmission is set for the serving cell, the terminal 20 may apply CBG-based SPS PDSCH transmission for all SPS settings on the serving cell, and apply TB-based SPS PDSCH transmission in all other cases. Similarly, when CG-PUSCH-codeBlockGroupTransmission is set for the serving cell, the terminal 20 may apply CBG-based CG PUSCH transmission for all CG settings on the serving cell, and apply TB-based CG PUSCH transmission in all other cases.

[0194] (Alt 3)

[0195] In Alt 3, the terminal 20 sets which of CBG-based SPS PDSCH / CG PUSCH transmission and TB-based SPS PDSCH / CG PUSCH transmission to apply based on separate information set for each SPS setting or CG setting and is a high-level parameter (RRC parameter) as setting information for enabling CBG-based transmission in SPS PDSCH / CG PUSCH, for example, SPS-PDSCH-codeBlockGroupTransmission / CG-PUSCH-codeBlockGroupTransmission.

[0196] For example, when SPS-PDSCH-codeBlockGroupTransmission is set for the SPS setting, the terminal 20 may apply CBG-based SPS PDSCH transmission for the SPS setting, and in other cases, apply TB-based SPS PDSCH transmission. Similarly, when CG-PUSCH-codeBlockGroupTransmission is set for the CG setting, the terminal 20 may apply CBG-based CG PUSCH transmission for the CG setting, and in other cases, apply TB-based CG PUSCH transmission.

[0197] (Alt 4)

[0198] Alt 4 is a combination of Alt 1 and Alt 2. That is, in Alt 4, the terminal 20 sets which of CBG-based SPS PDSCH / CG PUSCH transmission and TB-based SPS PDSCH / CG PUSCH transmission is to be applied based on an existing higher-layer parameter (RRC parameter) as setting information for enabling CBG-based transmission in DG PDSCH / DG PUSCH, and other higher-layer parameters (RRC parameters) in PDSCH-ServingCellConfig or in PUSCH-ServingCellConfig as setting information for enabling DG PDSCH / DG PUSCH.

[0199] For example, when both PDSCH-CodeBlockGroupTransmission and SPS-PDSCH-codeBlockGroupTransmission are configured for the serving cell, the terminal 20 may apply CBG-based SPS PDSCH transmission for all SPS settings on the serving cell, and apply TB-based SPS PDSCH transmission in all other cases. Similarly, when both PUSCH-CodeBlockGroupTransmission and CG-PUSCH-codeBlockGroupTransmission are configured for the serving cell, the terminal 20 may apply CBG-based CG PUSCH transmission for all CG settings on the serving cell, and apply TB-based CG PUSCH transmission in all other cases.

[0200] Alternatively, when at least one of PDSCH-CodeBlockGroupTransmission and SPS-PDSCH-codeBlockGroupTransmission is set for the serving cell, the terminal 20 applies CBG-based SPS PDSCH transmission for all SPS settings on the serving cell, and applies TB-based SPS PDSCH transmission in all other cases. Similarly, when at least one of PUSCH-CodeBlockGroupTransmission and CG-PUSCH-codeBlockGroupTransmission is set for the serving cell, the terminal 20 applies CBG-based CG PUSCH transmission for all CG settings on the serving cell, and applies TB-based CG PUSCH transmission in all other cases.

[0201] (Alt 5)

[0202] Alt 5 is a combination of Alt 1 and Alt 3. That is, in Alt 5, the terminal 20 sets which of CBG-based SPS PDSCH / CG PUSCH transmission and TB-based SPS PDSCH / CG PUSCH transmission is to be applied, based on an existing higher-layer parameter (RRC parameter) which is setting information for enabling CBG-based transmission in DG PDSCH / DG PUSCH, and a higher-layer parameter (RRC parameter) which is separate information for each SPS setting or CG setting and is setting information for enabling CBG-based transmission in SPS PDSCH / CG PUSCH.

[0203] For example, when PDSCH-CodeBlockGroupTransmission is configured for terminal 20 and the RRC parameter (e.g., CbgEnable) in the SPS configuration is configured (e.g., set to "valid"), CBG-based SPS PDSCH transmission is applied for the SPS configuration, and TB-based SPS PDSCH transmission is applied in all other cases. Similarly, when PUSCH-CodeBlockGroupTransmission is configured for terminal 20 and the RRC parameter (e.g., CbgEnable) in the CG configuration is configured (e.g., set to "valid"), CBG-based CG PUSCH transmission is applied for the CG configuration, and TB-based CG PUSCH transmission is applied in all other cases.

[0204] Alternatively, when at least one of PDSCH-CodeBlockGroupTransmission and the RRC parameters in the SPS setting is set, the terminal 20 applies CBG-based SPS PDSCH transmission for the SPS setting, and applies TB-based SPS PDSCH transmission in other cases. Similarly, when at least one of PUSCH-CodeBlockGroupTransmission and the RRC parameters in the CG setting is set, the terminal 20 applies CBG-based CG PUSCH transmission for the CG setting, and applies TB-based CG PUSCH transmission in other cases.

[0205] (Alt 6)

[0206] Alt 6 may be a combination of any one of Alt 1 to 5 and the activated DCI format.

[0207] For example, as a combination of Alt 1 and activated DCI format, it may be that when PDSCH-CodeBlockGroupTransmission is set for terminal 20 and SPS setting is activated through DCI format 1_1 or DCI 0_1, CBG-based SPS PDSCH transmission is applied for the SPS setting, and TB-based SPS PDSCH transmission is applied in other cases. Similarly, it may be that when PUSCH-CodeBlockGroupTransmission is set for terminal 20 and CG setting is activated through DCI format 1_1 or DCI 0_1, CBG-based CG PUSCH transmission is applied for the CG setting, and TB-based CG PUSCH transmission is applied in other cases.

[0208] Alternatively, as a combination of Alt 1 and activation of the DCI format, it may be that when at least one of the PDSCH-CodeBlockGroupTransmission setting and the activation of the SPS setting based on DCI format 1_1 or DCI 0_1 is implemented, the terminal 20 applies CBG-based SPS PDSCH transmission for the SPS setting, and in other cases, applies TB-based SPS PDSCH transmission. Similarly, it may be that when at least one of the PUSCH-CodeBlockGroupTransmission setting and the activation of the CG setting based on DCI format 1_1 or DCI 0_1 is implemented, the terminal 20 applies CBG-based CG PUSCH transmission for the CG setting, and in other cases, applies TB-based CG PUSCH transmission.

[0209] In addition, as a combination of Alt 2 and activated DCI format, it is also possible that when PDSCH-ServingCellConfig is set for the terminal 20 and the SPS setting is activated through DCI format 1_1 or DCI 0_1, the CBG-based SPS PDSCH transmission is applied for the SPS setting, and in other cases, the TB-based SPS PDSCH transmission is applied. Similarly, it is also possible that when PUSCH-ServingCellConfig is set for the terminal 20 and the CG setting is activated through DCI format 1_1 or DCI0_1, the CBG-based CG PUSCH transmission is applied for the CG setting, and in other cases, the TB-based CG PUSCH transmission is applied.

[0210] Alternatively, as a combination of Alt 2 and activation of the DCI format, it may be that, when at least one of the settings of PDSCH-ServingCellConfig and activation of the SPS setting based on DCI format 1_1 or DCI 0_1 is implemented, the terminal 20 applies CBG-based SPS PDSCH transmission for the SPS setting, and in other cases, applies TB-based SPS PDSCH transmission. Similarly, it may be that, when at least one of the settings of PUSCH-ServingCellConfig and activation of the CG setting based on DCI format 1_1 or DCI 0_1 is implemented, the terminal 20 applies CBG-based CG PUSCH transmission for the CG setting, and in other cases, applies TB-based CG PUSCH transmission.

[0211] In addition, as a combination of Alt 3 and activating the DCI format, it may also be that when SPS-PDSCH-codeBlockGroupTransmission is set for the SPS setting of the terminal 20 and the SPS setting is activated by DCI format 1_1 or DCI 0_1, the CBG-based SPS PDSCH transmission is applied for the SPS setting, and in other cases, the TB-based SPS PDSCH transmission is applied. Similarly, it may be that when CG-PUSCH-codeBlockGroupTransmission is set for the CG setting of the terminal 20 and the CG setting is activated by DCI format 1_1 or DCI 0_1, the CBG-based CG PUSCH transmission is applied for the CG setting, and in other cases, the TB-based CGPUSCH transmission is applied.

[0212] Alternatively, as a combination of Alt 3 and activation of the DCI format, it may be that, when at least one of the SPS-PDSCH-codeBlockGroupTransmission setting for the SPS setting and the activation of the SPS setting based on the DCI format 1_1 or DCI 0_1 is implemented, the terminal 20 applies the CBG-based SPS PDSCH transmission for the SPS setting, and in other cases, applies the TB-based SPS PDSCH transmission. Similarly, it may be that, when at least one of the CG-PUSCH-codeBlockGroupTransmission setting for the CG setting and the activation of the CG setting based on the DCI format 1_1 or DCI 0_1 is implemented, the terminal 20 applies the CBG-based CG PUSCH transmission for the CG setting, and in other cases, applies the TB-based CG PUSCH transmission.

[0213] In addition, as a combination of Alt 4 and activated DCI format, it may be that when both PDSCH-CodeBlockGroupTransmission and SPS-PDSCH-codeBlockGroupTransmission are set for the serving cell, and the SPS setting is activated through DCI format 1_1 or DCI 0_1, the terminal 20 applies CBG-based SPS PDSCH transmission for the SPS setting, and applies TB-based SPS PDSCH transmission in other cases. Similarly, it may be that when both PUSCH-CodeBlockGroupTransmission and CG-PUSCH-codeBlockGroupTransmission are set for the serving cell, and the CG setting is activated through DCI format 1_1 or DCI 0_1, the terminal 20 applies CBG-based CG PUSCH transmission for the CG setting, and applies TB-based CGPUSCH transmission in other cases.

[0214] Alternatively, as a combination of Alt 4 and activation of the DCI format, it may be that, when at least one of the settings of PDSCH-CodeBlockGroupTransmission, the settings of SPS-PDSCH-codeBlockGroupTransmission for the serving cell, and the activation of the SPS setting based on DCI format 1_1 or DCI 0_1 is implemented, the terminal 20 applies CBG-based SPS PDSCH transmission for the SPS setting, and applies TB-based SPS PDSCH transmission in other cases. Similarly, it may be that, when at least one of the settings of PUSCH-CodeBlockGroupTransmission, the settings of CG-PUSCH-codeBlockGroupTransmission for the serving cell, and the activation of the CG setting based on DCI format 1_1 or DCI 0_1 is implemented, the terminal 20 applies CBG-based CG PUSCH transmission for the CG setting, and applies TB-based CG PUSCH transmission in other cases.

[0215] In addition, as a combination of Alt 5 and activated DCI format, it may be that when both PDSCH-CodeBlockGroupTransmission and SPS-PDSCH-codeBlockGroupTransmission are set for the SPS setting of the terminal 20, and the SPS setting is activated by DCI format 1_1 or DCI 0_1, the CBG-based SPS PDSCH transmission is applied for the SPS setting, and in other cases, the TB-based SPS PDSCH transmission is applied. Similarly, it may be that when both PUSCH-CodeBlockGroupTransmission and CG-PUSCH-codeBlockGroupTransmission are set for the CG setting of the terminal 20, and the CG setting is activated by DCI format 1_1 or DCI 0_1, the CBG-based CG PUSCH transmission is applied for the CG setting, and in other cases, the TB-based CG PUSCH transmission is applied.

[0216] Alternatively, as a combination of Alt 5 and activation of the DCI format, it may be that, when at least one of the settings of PDSCH-CodeBlockGroupTransmission, the settings of SPS-PDSCH-codeBlockGroupTransmission for the SPS settings, and the activation of the SPS settings based on DCI format 1_1 or DCI 0_1 is implemented, the terminal 20 applies CBG-based SPS PDSCH transmission for the SPS settings, and in other cases, applies TB-based SPS PDSCH transmission. Similarly, it may be that, when at least one of the settings of PUSCH-CodeBlockGroupTransmission, the settings of CG-PUSCH-codeBlockGroupTransmission for the CG settings, and the activation of the CG settings based on DCI format 1_1 or DCI 0_1 is implemented, the terminal 20 applies CBG-based CG PUSCH transmission for the CG settings, and in other cases, applies TB-based CG PUSCH transmission.

[0217] (Alt 7)

[0218] Alt 7 may be a combination of any one of Alt 1 to 5 and a DCI field in the activated DCI.

[0219] For example, as a combination of Alt 1 and the DCI field in the activated DCI, it may be that, when PDSCH-CodeBlockGroupTransmission is configured for the terminal 20 and the SPS configuration is activated by a DCI format having a DCI field indicating CBG-based SPS PDSCH transmission, CBG-based SPS PDSCH transmission is applied for the SPS configuration, and in other cases, TB-based SPS PDSCH transmission is applied. Similarly, when PUSCH-CodeBlockGroupTransmission is configured for the terminal 20 and the CG configuration is activated by a DCI format having a DCI field indicating CBG-based CG PUSCH transmission, CBG-based CG PUSCH transmission is applied for the CG configuration, and in other cases, TB-based CG PUSCH transmission is applied.

[0220] Alternatively, as a combination of Alt 1 and activation of the DCI field in the DCI, it may be that, when at least one of the PDSCH-CodeBlockGroupTransmission setting and the activation of the SPS setting based on the DCI format having the DCI field indicating the CBG-based SPS PDSCH transmission is implemented, the terminal 20 applies the CBG-based SPS PDSCH transmission for the SPS setting, and in other cases, applies the TB-based SPS PDSCH transmission. Similarly, it may be that, when at least one of the PUSCH-CodeBlockGroupTransmission setting and the activation of the CG setting based on the DCI format having the DCI field indicating the CBG-based CG PUSCH transmission is implemented, the terminal 20 applies the CBG-based CG PUSCH transmission for the CG setting, and in other cases, applies the TB-based CG PUSCH transmission.

[0221] In addition, as a combination of Alt 2 and the DCI field in the activated DCI, it may be that when PDSCH-ServingCellConfig is set for the terminal 20 and the SPS setting is activated by a DCI format having a DCI field indicating CBG-based SPS PDSCH transmission, CBG-based SPS PDSCH transmission is applied for the SPS setting, and in other cases, TB-based SPS PDSCH transmission is applied. Similarly, it may be that when PUSCH-ServingCellConfig is set for the terminal 20 and the CG setting is activated by a DCI format having a DCI field indicating CBG-based CG PUSCH transmission, CBG-based CG PUSCH transmission is applied for the CG setting, and in other cases, TB-based CG PUSCH transmission is applied.

[0222] Alternatively, as a combination of Alt 2 and activation of the DCI field in the DCI, it may be that, when at least one of the PDSCH-ServingCellConfig setting and the activation of the SPS setting based on the DCI format having the DCI field indicating the CBG-based SPS PDSCH transmission is implemented, the terminal 20 applies the CBG-based SPS PDSCH transmission for the SPS setting, and in other cases, applies the TB-based SPS PDSCH transmission. Similarly, it may be that, when at least one of the PUSCH-ServingCellConfig setting and the activation of the CG setting based on the DCI format having the DCI field indicating the CBG-based CG PUSCH transmission is implemented, the terminal 20 applies the CBG-based CGPUSCH transmission for the CG setting, and in other cases, applies the TB-based CG PUSCH transmission.

[0223] In addition, as a combination of Alt 3 and activating the DCI field in the DCI, it may also be that, when SPS-PDSCH-codeBlockGroupTransmission is set for the SPS setting and the SPS setting is activated by a DCI format having a DCI field indicating CBG-based SPS PDSCH transmission, the terminal 20 applies CBG-based SPS PDSCH transmission for the SPS setting, and in other cases, TB-based SPS PDSCH transmission is applied. Similarly, it may be that, when CG-PUSCH-codeBlockGroupTransmission is set for the CG setting and the CG setting is activated by a DCI format having a DCI field indicating CBG-based CG PUSCH transmission, the terminal 20 applies CBG-based CG PUSCH transmission for the CG setting, and in other cases, TB-based CG PUSCH transmission is applied.

[0224] Alternatively, as a combination of Alt 3 and activation of the DCI field in the DCI, it may be that, when the terminal 20 is implemented with at least one of the setting for the SPS setting of SPS-PDSCH-codeBlockGroupTransmission and the activation of the SPS setting based on the DCI format having the DCI field indicating the CBG-based SPS PDSCH transmission, the CBG-based SPS PDSCH transmission is applied for the SPS setting, and in other cases, the TB-based SPS PDSCH transmission is applied. Similarly, it may be that, when the terminal 20 is implemented with at least one of the setting for the CG setting of CG-PUSCH-codeBlockGroupTransmission and the activation of the CG setting based on the DCI format having the DCI field indicating the CBG-based CG PUSCH transmission, the CBG-based CG PUSCH transmission is applied for the CG setting, and in other cases, the TB-based CG PUSCH transmission is applied.

[0225] In addition, as a combination of Alt 4 and the DCI field in the activated DCI, it may also be that when both PDSCH-CodeBlockGroupTransmission and SPS-PDSCH-codeBlockGroupTransmission are set for the serving cell, and the SPS setting is activated by a DCI format having a DCI field indicating CBG-based SPS PDSCH transmission, the CBG-based SPS PDSCH transmission is applied for the SPS setting, and in other cases, the TB-based SPS PDSCH transmission is applied. Similarly, it may be that when both PUSCH-CodeBlockGroupTransmission and CG-PUSCH-codeBlockGroupTransmission are set for the serving cell, and the CG setting is activated by a DCI format having a DCI field indicating CBG-based CG PUSCH transmission, the CBG-based CG PUSCH transmission is applied for the CG setting, and in other cases, the TB-based CG PUSCH transmission is applied.

[0226] Alternatively, as a combination of Alt 4 and activation of the DCI field in the DCI, it may be that, when at least one of the settings of PDSCH-CodeBlockGroupTransmission, the settings of SPS-PDSCH-codeBlockGroupTransmission for the serving cell, and the activation of the SPS setting based on the DCI format having the DCI field indicating the CBG-based SPS PDSCH transmission is implemented, the terminal 20 applies the CBG-based SPS PDSCH transmission for the SPS setting, and in other cases, applies the TB-based SPS PDSCH transmission. Similarly, it may be that, when at least one of the settings of PUSCH-CodeBlockGroupTransmission, the settings of CG-PUSCH-codeBlockGroupTransmission for the serving cell, and the activation of the CG setting based on the DCI format having the DCI field indicating the CBG-based CG PUSCH transmission is implemented, the terminal 20 applies the CBG-based CG PUSCH transmission for the CG setting, and in other cases, applies the TB-based CG PUSCH transmission.

[0227] In addition, as a combination of Alt 5 and the DCI field in the activated DCI, it may also be that, when both PDSCH-CodeBlockGroupTransmission and SPS-PDSCH-codeBlockGroupTransmission are set for the SPS setting of the terminal 20, and the SPS setting is activated by a DCI format having a DCI field indicating CBG-based SPS PDSCH transmission, CBG-based SPS PDSCH transmission is applied for the SPS setting, and in other cases, TB-based SPS PDSCH transmission is applied. Similarly, it may be that, when both PUSCH-CodeBlockGroupTransmission and CG-PUSCH-codeBlockGroupTransmission are set for the CG setting of the terminal 20, and the CG setting is activated by a DCI format having a DCI field indicating CBG-based CG PUSCH transmission, CBG-based CG PUSCH transmission is applied for the CG setting, and in other cases, TB-based CG PUSCH transmission is applied.

[0228] Alternatively, as a combination of Alt 5 and activation of the DCI field in the DCI, it may be that, when at least one of the settings of PDSCH-CodeBlockGroupTransmission, the settings of SPS-PDSCH-codeBlockGroupTransmission for the SPS settings, and the activation of the SPS settings based on the DCI format having the DCI field indicating the CBG-based SPS PDSCH transmission is implemented, the terminal 20 applies the CBG-based SPS PDSCH transmission for the SPS settings, and in other cases, applies the TB-based SPS PDSCH transmission. Similarly, it may be that, when at least one of the settings of PUSCH-CodeBlockGroupTransmission, the settings of CG-PUSCH-codeBlockGroupTransmission for the CG settings, and the activation of the CG settings based on the DCI format having the DCI field indicating the CBG-based CG PUSCH transmission is implemented, the terminal 20 applies the CBG-based CG PUSCH transmission for the CG settings, and in other cases, applies the TB-based CG PUSCH transmission.

[0229] (About the number of CBGs for SPS PDSCH / CG PUSCH)

[0230] The maximum value of CBG per TB of SPS PDSCH or CG PUSCH can be set as follows.

[0231] (Option 1)

[0232] For the SPS / CG configuration on the serving cell, when CBG-based SPS PDSCH / CG PUSCH transmission is applied, the maximum value of CBG for each TB of SPS PDSCH or CG PUSCH can be determined by parameters (e.g., N) constructed for each serving cell.

[0233] (Option 2)

[0234] For each SPS / CG setting, when CBG-based SPS PDSCH / CG PUSCH transmission is applied, the maximum number of CBGs per TB of SPS PDSCH or CG PUSCH can also be determined by the parameters set in the SPS / CG setting (for example, N_i of SPS / CG setting #i).

[0235] (Effect)

[0236] According to the above-described Proposal 1, CBG-based transmission can also be supported in the SPS PDSCH / CG PUSCH as a semi-static scheduling, so the retransmission frequency can be reduced, low latency can be achieved, transmission efficiency can be improved, and reliability can be ensured. For example, when 1TB is divided into 4 code blocks for transmission, when an error occurs in only one code block, only the code block needs to be retransmitted. Therefore, compared with the case of transmitting in TB units, the amount of data to be retransmitted can be reduced.

[0237] In addition, according to Proposal 1, in SPS PDSCH / CG PUSCH, CBG-based transmission and TB-based transmission (TB based transmission) can be adaptively switched. For example, for SPS / CG settings for XR services, CBG-based SPS PDSCH / CG PUSCH transmission can be applied, and for SPS / CG settings for URLLC services, TB-based SPS PDSCH / CG PUSCH transmission can be applied.

[0238] <Proposal 2>

[0239] In Proposal 2, HARQ-ACK CB for CBG based SPS PDSCH is described. Hereinafter, HARQ-ACK bits included in the HARQ-ACK CB for SPS PDSCH are described as "SPS HARQ-ACK bits".

[0240] In addition, TB-based SPS PDSCH (TB based SPS PDSCH) and CBG-based SPS PDSCH are sometimes collectively referred to as SPS PDSCH. In addition, TB-based DG PDSCH and CBG-based DG PDSCH are sometimes collectively referred to as DGPDSCH. In addition, TB-based SPS PDSCH and TB-based DG PDSCH are sometimes collectively referred to as TBbased PDSCH (TBbased PDSCH). CBG-based SPS PDSCH and CBG-based DG PDSCH are sometimes collectively referred to as CBG-based PDSCH (CBG based PDSCH).

[0241] Figure 5 This is a diagram showing an example of HARQ-ACK CB of Proposal 2. Figure 5 In the HARQ-ACK CB shown, "HARQ-ACK for TB-based DG PDSCH" corresponds to the subcodebook containing HARQ-ACK for TB-based DG PDSCH, and "HARQ-ACK for CBG-based DG PDSCH" corresponds to the subcodebook containing HARQ-ACK for CBG-based DG PDSCH. Figure 5 In the HARQ-ACK CB shown, "HARQ-ACK for SPS PDSCH (including SPS based on TB and CBG)" corresponds to the subcodebook including HARQ-ACK for SPS PDSCH based on TB and / or HARQ-ACK for SPS PDSCH based on CBG.

[0242] In addition, in the following description, an example is shown in which the “HARQ-ACK for SPS PDSCH (including SPS based on TB and CBG)” includes both the HARQ-ACK for the TB-based SPS PDSCH and the HARQ-ACK for the CBG-based SPS PDSCH, but the “HARQ-ACK for SPS PDSCH (including SPS based on TB and CBG)” may not include at least one of the HARQ-ACK for the TB-based SPS PDSCH and the HARQ-ACK for the CBG-based SPS PDSCH. In addition, hereinafter, the “HARQ-ACK for SPS PDSCH (including SPS based on TB and CBG)” may sometimes be abbreviated as “HARQ-ACK for SPS PDSCH” or “SPS HARQ-ACK CB”.

[0243] exist Figure 5 The structure of "HARQ-ACK for SPS PDSCH" shown may adopt a structure based on one of the options shown below.

[0244] (Option 1)

[0245] In option 1, use Figure 4 The construction process of the CB of the SPS HARQ-ACK described is reused for the construction process of the CB of the HARQ-ACK for the CBG-based SPS PDSCH. Here, it may be that only the number of HARQ-ACK bits is different between the HARQ-ACK CB for the CBG-based SPS PDSCH and the HARQ-ACK CB for the TB-based SPS PDSCH. In other words, the number of HARQ-ACK bits is different between the HARQ-ACK CB for the CBG-based SPS PDSCH and the HARQ-ACK CB for the TB-based SPS PDSCH, and on the other hand, elements other than the number of HARQ-ACK bits may be common between the HARQ-ACK CB for the CBG-based SPS PDSCH and the HARQ-ACK CB for the TB-based SPS PDSCH. Among the elements other than the number of HARQ-ACK bits, for example, a decision (arrangement) related to the order of the information (e.g., field) of HARQ-ACK in the HARQ-ACK CB is included.

[0246] The order of SPS HARQ-ACK bits in the SPS HARQ-ACK CB (the order of fields) may first be based on the ascending order of the cell index of the serving cell, then, in each of the indexes of the serving cell, based on the ascending order of the index set by the SPS, and then, in each of the indexes set by the SPS, based on the ascending order of the index of the DL time slot. The order of the SPS HARQ-ACK bits (the order of fields) may also be common between the HARQ-ACK CB for the CBG-based SPS PDSCH and the HARQ-ACK CB for the TB-based SPS PDSCH.

[0247] (Option 2)

[0248] In Option 2, it is classified into a cell that performs TB-based SPS PDSCH transmission and a cell that performs CBG-based SPS PDSCH transmission. For example, in Option 2, in the HARQ-ACK for SPS PDSCH, first, there is a field corresponding to a cell that performs only TB-based SPS PDSCH transmission, and then there is a field corresponding to a cell that performs only CBG-based SPS PDSCH transmission. Here, for example, in the field corresponding to the cell that performs only TB-based SPS PDSCH transmission, only the HARQ-ACK bits corresponding to the TB-based SPS PDSCH received from the cell that performs only TB-based SPS PDSCH transmission may be included. In addition, in the field corresponding to the cell that performs only CBG-based SPS PDSCH transmission, only the HARQ-ACK bits corresponding to the CBG-based SPS PDSCH received from the cell that performs only CBG-based SPS PDSCH transmission may be included, corresponding to the cell having the above situation.

[0249] In addition, the so-called cell that only performs TB-based SPS PDSCH transmission may also correspond to a cell that performs TB-based SPS PDSCH transmission but does not perform CBG-based SPS PDSCH transmission. In addition, the so-called cell that only performs CBG-based SPS PDSCH transmission may also correspond to a cell that performs CBG-based SPS PDSCH transmission but does not perform TB-based SPS PDSCH transmission.

[0250] In addition, the cell that performs only SPS PDSCH transmission based on TB may be one or more cells. In addition, when there are multiple cells that perform only SPS PDSCH transmission based on TB, a set of multiple cells may be formed. There is no particular limitation on the order of the multiple cells that perform only SPS PDSCH transmission based on TB.

[0251] For example, regarding the order of multiple cells that perform only TB-based SPS PDSCH transmission, the order of using Figure 4 The order of the construction process of the CB of the SPS HARQ-ACK is described. For example, regarding the order of multiple cells that perform only TB-based SPS PDSCH transmission, it can be first based on the order of the cell index of the serving cell, then based on the order of the index set by the SPS, and then based on the order of the index of the DL time slot. For example, the order of multiple cells that perform only TB-based SPS PDSCH transmission can be first based on the ascending order of the cell index of the serving cell, then based on the ascending order of the index set by the SPS, and then based on the ascending order of the index of the DL time slot.

[0252] Figure 6 is a diagram showing an example of HARQ-ACK CB of Option 2 of Proposal 2. In Option 2, Figure 6 As shown, in "HARQ-ACK for SPS PDSCH", first there is "Cell withonly TB based SPS", and then there is "Cell withonly CBGbased SPS". Here, "Cell withonly TBbased SPS" can correspond to a field containing only HARQ-ACK for TB-based SPS PDSCH, and "Cell withonly CBGbased SPS" can correspond to a field containing only HARQ-ACK for CBG-based SPS PDSCH.

[0253] In addition, Figure 6 In the figure, an example is shown in which the "cell having only SPS based on TB" and the "cell having only SPS based on CBG" are each one, but the "cell having only SPS based on TB" and the "cell having only SPS based on CBG" can also be more than two.

[0254] And, if Figure 6As shown, the order of the fields included in the “cells with only TB-based SPS” is first based on the order of the cell indexes of the serving cells such as “Cell index #i_1(Cell index#i_1)” and “Cell index #i_2(Cell index#i_2)”. Then, the order of the fields included in the “cell index #i_1” is based on the order of the indexes of the SPS configuration such as shown in the “SPS configuration index #j_1(SPS configuration index#j_1)” and “SPS configuration index #j_2(SPS configuration index#j_2)”. Next, the order of the cells included in the “SPS configuration index #j_1” is based on the order of the indexes of the DL slots such as shown in the “DL slot index #n_1(DL slot index#n_1)” and “DL slot index #n_2(DL slot index#n_2)”.

[0255] In addition, although Figure 6 Although omitted in the above description, the order of cells included in "cell index #i_2" may be based on the order of the indexes configured by the SPS. In addition, the order of cells included in "SPS configuration index #j_2" may be based on the order of the indexes of the DL time slots.

[0256] In addition, there may be multiple cells that only perform CBG-based SPS PDSCH transmission. In addition, the cell that only performs CBG-based SPS PDSCH transmission may be composed of a set of multiple cells. There is no special limitation on the order of cells in the case where multiple cells are included in the cell that only performs CBG-based SPS PDSCH transmission. For example, the order of any of the following options 2-1 and 2-2 can be adopted.

[0257] (Option 2-1)

[0258] In option 2-1, the order of multiple fields included in the cell that performs only CBG-based SPS PDSCH transmission is reused by reusing the existing ordering principle. The so-called existing ordering principle can be to use Figure 4 The order of the construction process of the CB of the SPS HARQ-ACK is described. For example, the order of multiple fields contained in a cell that only performs CBG-based SPS PDSCH transmission can be first based on the order of the cell index of the serving cell, then, based on the order of the index set by the SPS, and then, based on the order of the index of the DL time slot. For example, the order of multiple fields contained in a cell that only performs CBG-based SPS PDSCH transmission can be first based on the ascending order of the cell index of the serving cell, then, based on the ascending order of the index set by the SPS, and then, based on the ascending order of the index of the DL time slot.

[0259] Figure 7 is a diagram showing an example of HARQ-ACK CB of Option 2-1 of Proposal 2. In Option 2-1, Figure 6 Similarly, in the “HARQ-ACK for SPS PDSCH”, first there is “a cell with only (accompanied by) TB-based SPS”, and then there is “a cell with only CBG-based SPS”. Here, “a cell with only TB-based SPS” may correspond to a field including only HARQ-ACK for TB-based SPS PDSCH, and “a cell with only CBG-based SPS” may correspond to a field including only HARQ-ACK for CBG-based SPS PDSCH.

[0260] In addition, Figure 7 In the figure, an example is shown in which the "cell having only SPS based on TB" and the "cell having only SPS based on CBG" are each one, but the "cell having only SPS based on TB" and the "cell having only SPS based on CBG" can also be more than two.

[0261] And, if Figure 7 As shown, the order of the fields included in the “cell with only CBG-based SPS” is first based on the order of the cell indexes of the serving cells such as “cell index #i_1” and “cell index #i_2”. Then, the order of the fields included in the “cell index #i_1” is based on the order of the indexes of the SPS settings such as shown in “SPS setting index #j_1” and “SPS setting index #j_2”. Next, the order of the fields included in the “SPS setting index #j_1” is based on the order of the indexes of the DL slots such as shown in “DL slot index #n_1” and “DL slot index #n_2”.

[0262] In addition, Figure 7 Although omitted in the description, the order of the fields included in the "cell index #i_2" may be based on the order of the indexes set by the SPS. In addition, the order of the fields included in the "SPS setting index #j_2" may be based on the order of the indexes of the DL time slots.

[0263] (Option 2-2)

[0264] In option 2-2, the order of multiple fields included in the cell for CBG-based SPS PDSCH transmission can be first based on the order of the cell index of the serving cell. And, next, regarding the order of multiple fields included in the cell for CBG-based SPS PDSCH transmission, the fields corresponding to the SPS settings for TB-based transmission are arranged first, and then the fields corresponding to the SPS settings for CBG-based transmission are arranged. In this case, in the field corresponding to the cell index of a certain serving cell, the fields of the SPS settings for TB-based transmission are arranged first, and then the fields of the SPS settings for CBG-based transmission are arranged.

[0265] In the index of a certain SPS setting based on the transmission of TB, the existing sorting principle can also be reused. The so-called existing sorting principle can be to use Figure 4 The order of the construction process of the CB of the SPS HARQ-ACK is described. For example, the order of the fields in the field corresponding to the index set by a certain SPS based on the transmission of the TB can be based on the order of the index set by the SPS first, and then based on the order of the index of the DL time slot. For example, the order of the fields in the field corresponding to the index set by a certain SPS based on the transmission of the TB can be based on the ascending order of the index set by the SPS first, and then based on the ascending order of the index of the DL time slot.

[0266] Figure 8 is a diagram showing an example of a HARQ-ACK CB of Option 2-2 of Proposal 2. In Option 2-2, Figure 8 As shown, in "HARQ-ACK for SPS PDSCH", there is first "a cell with only TB-based SPS", and then there is "a cell with CBG-based SPS". Figure 8 middle, Figure 7 The “cell with only CBG-based SPS” in is replaced by “cell with CBG-based SPS”. Here, “cell with only TB-based SPS” may correspond to a field containing only HARQ-ACK for TB-based SPSPDSCH, and “cell with CBG-based SPS” may correspond to a field containing HARQ-ACK for CBG-based SPSPDSCH.

[0267] In addition, Figure 8 In the figure, an example is shown in which the "cell having only TB-based SPS" and the "cell having CBG-based SPS" are each one, but the "cell having only TB-based SPS" and the "cell having CBG-based SPS" can also be more than two.

[0268] And, if Figure 8As shown, the order of the fields included in the "cell with CBG-based SPS" is first based on the order of the cell indexes of the serving cells such as "cell index #i_1" and "cell index #i_2". Then, in the field corresponding to the "cell index #i_1", the "TB-based SPS configuration" is arranged first, and then the "CBG-based SPS configuration" is arranged. Here, the "TB-based SPS configuration" corresponds to the SPS configuration for TB-based transmission, and the "CBG-based SPS configuration" corresponds to the SPS configuration for CBG-based transmission.

[0269] Next, the order of the fields included in the "TB-based SPS setting" is based on the order of the indexes of the SPS setting as shown in "SPS setting index #j_1" and "SPS setting index #j_2". Next, the order of the cells included in the "SPS setting index #j_1" is based on the order of the indexes of the DL slots as shown in "DL slot index #m_1" and "DL slot index #m_2".

[0270] In addition, Figure 8 Although it is omitted in "Cell Index #i_1", in "Cell Index #i_2", "TB-based SPS setting" can be arranged, followed by "CBG-based SPS setting". In addition, the order of the fields included in "SPS setting index #j_2" can be based on the order of the DL time slot index.

[0271] In addition, Figure 8 The order of cells included in the "CBG-based SPS setting" omitted in the description is not particularly limited. For example, the order of any of the following options 2-2A and 2-2B may be adopted.

[0272] (Option 2-2A)

[0273] In Option 2-2A, the order of the fields included in the "CBG-based SPS setting" may be based first on the order of the indexes set by the SPS, and then on the order of the indexes of the DL slots. For example, the order of the indexes set by the SPS may be in either ascending or descending order of the indexes. In addition, the order of the indexes of the DL slots may be in either ascending or descending order of the indexes.

[0274] Fig. 9 This is a diagram showing an example of Option 2-2A of Proposal 2. Fig. 9 In, with Figure 8Similarly, the "SPS settings based on TB" are arranged, and then the "SPS settings based on CBG" are arranged. Figure 8 Likewise, Fig. 9 The "TB-based SPS setting" and "CBG-based SPS setting" shown can be included in a field corresponding to a cell index of a certain service cell (for example, a field corresponding to "cell index #i_1").

[0275] like Fig. 9 As shown, the order of the fields included in the "SPS configuration based on CBG" is based on the order of the indexes of the SPS configuration, as shown in "SPS configuration index #k_1 (SPS configuration index#k_1)", "SPS configuration index #k_2 (SPS configuration index#k_2)". Next, the order of the fields included in the "SPS configuration index #k_1" is based on the order of the indexes of the DL slots, as shown in "DL slot index #n_1" and "DL slot index #n_2".

[0276] In addition, Fig. 9 Although omitted in the text, the order of the fields included in "SPS setting index #j_2" can be based on the order of the indexes of the DL time slots. For example, the order of the indexes set by the SPS can be either in ascending order or in descending order. In addition, the order of the indexes of the DL time slots can be either in ascending order or in descending order.

[0277] (Option 2-2B)

[0278] In option 2-2B, the order of the fields included in the "CBG-based SPS setting" may be first based on the order of specific numbers associated with the HARQ-ACK CB, then based on the order of the indexes set by the SPS, and then based on the order of the indexes of the DL time slots. For example, the order of the specific numbers associated with the HARQ-ACK may be in ascending order or descending order of the specific numbers associated with the HARQ-ACK. In addition, the order of the indexes set by the SPS may be in ascending order or descending order of the indexes. In addition, the order of the indexes of the DL time slots may be in ascending order or descending order of the indexes.

[0279] Here, the so-called specific number related to the HARQ-ACK CB can be, for example, the number of CBGs, the number of CBGs per TB, or the number of HARQ-ACK bits. For example, the number of CBGs is the number of CBGs per PDSCH set for the SPS. For example, the number of CBGs per TB is the number of CBGs per TB for each PDSCH set for the SPS. The number of CBGs can also be replaced by the maximum number of CBGs. For example, the number of HARQ-ACK bits is the number of HARQ-ACK bits per PDSCH set for the SPS.

[0280] Fig.10 is a diagram showing an example of Option 2-2B of Proposal 2. Figure 8 Similarly, in Fig.10 In the example, the "SPS setting based on TB" is arranged first, followed by the "SPS setting based on CBG". Figure 8 Likewise, Fig.10 The "TB-based SPS setting" and "CBG-based SPS setting" shown can be included in a field corresponding to a cell index of a certain service cell (for example, a field corresponding to "cell index #i_1").

[0281] like Fig.10 As shown, in the "SPS configuration based on CBG", the cells represented as "SPS configuration with (maximum) N_1CBGs" and "SPS configuration with (maximum) N_1CBG" are arranged in sequence. Here, "SPS configuration with (maximum) N_1CBG" corresponds to the field in which the maximum number of CBGs configured for SPS is N_1, and "SPS configuration with (maximum) N_2CBGs" corresponds to the field in which the maximum number of CBGs configured for SPS is N_2. In addition, by way of example, in the case of ascending order of the maximum number of CBGs, N_2 can be larger than N_1.

[0282] Next, regarding the order of the fields included in the "SPS setting with (maximum) N_1CBG", as shown in "SPS setting index #k_1", "SPS setting index #k_2", it is based on the order of the index of the SPS setting. Next, regarding the order of the cells included in the "SPS setting index #k_1", as shown in "DL time slot index #n_1", "DL time slot index #n_2", it is based on the order of the index of the DL time slot.

[0283] (Option 3)

[0284] In option 3, the sorting is first performed based on the cell index of the serving cell, and in the sorting within the same cell, the field corresponding to the TB-based SPS setting exists before the field corresponding to the CBG-based SPS setting. And, in the TB-based SPS setting, the sorting is performed in the order of the index of the SPS setting, and then the sorting is performed in the order of the index of the DL time slot. In addition, in the CBG-based SPS setting, the sorting is performed in the order of the index of the SPS setting, and then the sorting is performed in the order of the index of the DL time slot.

[0285] Fig.11 This is a diagram showing an example of Option 3 of Proposal 2. Fig.11 The order of fields in "HARQ-ACK for SPS PDSCH" is first based on the order of cell indexes of serving cells. And, in "Cell Index #i_1", "TB-based SPS setting" exists before "CBG-based SPS setting". "TB-based SPS setting" and "CBG-based SPS setting" are included in the field with cell index #i_1. And, regarding the order of fields included in "TB-based SPS setting", as shown in "SPS setting index #j_1" and "SPS setting index #j_2", it is based on the order of indexes of SPS settings. Next, regarding the order of fields included in "SPS setting index #j_1", as shown in "DL slot index #m_1" and "DL slot index #m_2", it is based on the order of indexes of DL slots.

[0286] In addition, Fig.11 Although omitted in the description, the order of fields included in the "CBG-based SPS setting" can be the same as the order of fields included in the "TB-based SPS setting". For example, the order of fields included in the "CBG-based SPS setting" can be first based on the order of indexes of the SPS setting, and then, based on the order of indexes of the DL time slots.

[0287] The differences between Option 3 and Option 2 are explained below. As mentioned above, in Option 2, Figure 6 In Option 3, as shown in "a cell with only TB-based SPS" corresponding to a cell that only performs TB-based SPS PDSCH transmission, and "a cell with only CBG-based SPS" corresponding to a cell that only performs CBG-based SPS PDSCH transmission, the differences in cell operations are first considered and classified, and then sorted in the order of the index of each cell. On the other hand, in Option 3, when sorting is performed based on the order of cell indexes, the differences in cells are not considered.

[0288] (Option 4)

[0289] In the above-mentioned options 1 to 3, an example is shown in which the codebook for SPS PDSCH (referred to as the "codebook for HARQ-ACK for SPS PDSCH") includes one or both of HARQ-ACK for TB-based SPS PDSCH and HARQ-ACK for CBG-based SPS PDSCH. In option 4, a subcodebook for TB-based SPS PDSCH and a subcodebook for CBG-based SPS PDSCH are distinguished. In the subcodebook for TB-based SPS PDSCH, HARQ-ACK for TB-based SPS PDSCH is included. In the subcodebook for CBG-based SPS PDSCH, HARQ-ACK for CBG-based SPS PDSCH is included.

[0290] The subcodebook for the TB-based SPS PDSCH can be recorded as a TB-based SPS subcodebook (TB based SPS sub-codebook) or recorded in other expressions. The subcodebook for the CBG-based SPS PDSCH can be recorded as a CBG-based SPS subcodebook (CBG based SPS sub-codebook) or recorded in other expressions.

[0291] The positional relationship (e.g., order) of the subcodebook for the TB-based SPS PDSCH, the subcodebook for the CBG-based SPS PDSCH, the subcodebook for the TB-based DG PDSCH, and the subcodebook for the CBG-based DG PDSCH is not particularly limited. For example, any of the following options 4-1 and 4-2 may be used.

[0292] (Option 4-1)

[0293] In option 4-1, the subcodebook for TB-based SPS PDSCH and the subcodebook for CBG-based SPS PDSCH are appended to the codebook for DG PDSCH. The codebook for DG PDSCH corresponds to both the codebook for TB-based DGPDSCH and the codebook for CBG-based DG PDSCH. The codebook for DG PDSCH includes HARQ-ACK for DG PDSCH. In other words, the subcodebook for TB-based SPS PDSCH and the subcodebook for CBG-based SPS PDSCH are appended to the HARQ-ACK for DG PDSCH (also referred to as DG HARQ-ACK).

[0294] In Option 4-1, a structure in which a subcodebook for SPS PDSCH is added after the codebook for DG PDSCH may also be adopted. In Option 4-1, for example, the codebook for TB-based DG PDSCH is arranged first, and then the codebook for CBG-based DG PDSCH, the subcodebook for TB-based SPS PDSCH, and the subcodebook for CBG-based SPS PDSCH are arranged in sequence.

[0295] (Option 4-2)

[0296] In option 4-2, the subcodebook for the TB-based SPS PDSCH is added after the codebook for the TB-based DG PDSCH, and the subcodebook for the CBG-based SPS PDSCH is added after the codebook for the CBG-based DG PDSCH. In this case, the subcodebook for the TB-based SPS PDSCH can also be added before the codebook for the CBG-based DG PDSCH.

[0297] Option 4-2 may also adopt a structure in which a subcodebook for CBG based PDSCH (CBG based PDSCH) is added after the subcodebook for TB based PDSCH (TB based PDSCH). In Option 4-2, for example, the codebook for TB based DG PDSCH is first arranged, and then the subcodebook for TB based SPS PDSCH, the codebook for CBG based DG PDSCH, and the subcodebook for CBG based SPS PDSCH are arranged in sequence.

[0298] Fig.12 This is a diagram showing an example of Option 4 of Proposal 2. Fig.12 , an example of the order in each CB of the above-mentioned options 4-1 and 4-2 is shown.

[0299] exist Fig.12 In the example of option 4-1, with Figure 5 Similarly, in HARQ-ACK CB, "HARQ-ACK for TB-based DG PDSCH" and "HARQ-ACK for CBG-based DG PDSCH" are arranged first, and after "HARQ-ACK for CBG-based DG PDSCH", "HARQ-ACK for TBbased SPS PDSCH (HARQ-ACK for TBbased SPS PDSCH)" and "HARQ-ACK for CBG based SPS PDSCH (HARQ-ACK for CBG basedSPS PDSCH)" are arranged.

[0300] In addition, in the structure of option 4, the construction method of the TB-based SPS subcodebook and the CBG-based SPS subcodebook is not particularly limited. For example, in the construction of the TB-based SPS subcodebook, any of the methods shown in options 2 and / or 3 may also be used. In addition, in the construction of the CBG-based SPS subcodebook, any of the methods shown in options 2 and / or 3 may also be used.

[0301] (About the number of HARQ-ACK bits in Proposal 2)

[0302] In each option of the above-mentioned proposal 2, for the TB-based SPS configuration, the number of HARQ-ACK bits per SPS PDSCH is 1.

[0303] In each option of the above-mentioned proposal 2, for the CBG-based SPS configuration, the number of HARQ-ACK bits per SPS PDSCH or the number of HARQ-ACK bits per TB is M. M may be an integer greater than 0. In addition, M may be defined by any one of the following Alt1 to Alt3.

[0304] (Alt.1)

[0305] In Alt.1, M can be the same for all CBG-based SPS settings for all serving cells.

[0306] In Alt.1, M can be the maximum value in a set of specific values. For example, the set of specific values ​​is the set of the number of CBGs (or the maximum number of CBGs) for the SPS of all serving cells. In addition, for example, the set of specific values ​​is: the set of the number of CBGs (or the maximum number of CBGs) corresponding to the SPS of all serving cells and all CBG-based SPS settings of each cell.

[0307] In addition, the set of specific values ​​may not be limited to these. In addition, the number of values ​​included in the set of specific values ​​may be one or more.

[0308] In addition, in Alt. 1, M is not limited to the example of the maximum value in the set of specific values. M may be a value determined based on the set of specific values. M may also be any one of the minimum value, average value, and median value in the set of specific values. Alternatively, M may also be specified by a calculation process based on the values ​​included in the set of specific values ​​and / or the number of values ​​included.

[0309] (Alt.2)

[0310] In Alt.2, for the CBG-based SPS configuration of the same serving cell, M may be the same value. In this case, for the CBG-based SPS configuration of different serving cells, M may be different or the same.

[0311] In Alt.2, in each serving cell, M may be the maximum value in a set of specific values. For example, the set of specific values ​​is a set of the number of CBGs (or the maximum number of CBGs) corresponding to the SPS set for a certain cell. In the case where Option 1 of Proposal 1 described above is applied, the set of specific values ​​may also be a set of the number of CBGs (or the maximum number of CBGs) corresponding to the SPS set for a certain cell.

[0312] In addition, for example, the set of specific values ​​in a certain cell is the set of the number of CBGs (or the maximum number of CBGs) of the SPS set for all CBG-based SPS settings of the cell. In the case where option 2 of the above-mentioned proposal 1 is applied, the set of specific values ​​can be the set of the number of CBGs (or the maximum number of CBGs) of the SPS set for all CBG-based SPS settings of the cell.

[0313] In addition, the set of specific values ​​may not be limited to these. In addition, the number of values ​​included in the set of specific values ​​may be one or more.

[0314] (Alt.3)

[0315] In Alt.3, for each CBG-based SPS setting of the same serving cell, M may be different from each other or the same. In addition, for each CBG-based SPS setting of different serving cells, M may be different from each other or the same.

[0316] For each CBG-based SPS setting for each serving cell, M may be the number of CBGs set for the SPS (or the maximum number of CBGs).

[0317] (Effect)

[0318] As described above, according to Proposal 2, a HARQ-ACK CB including a HARQ-ACK for a CBG-based SPS PDSCH can be constructed in an appropriate form, so that HARQ-ACK feedback can be performed efficiently. For example, in a case where a CBG-based SPS PDSCH transmission is performed in a certain cell, the HARQ-ACK for the CBG-based SPS PDSCH is included in the HARQ-ACK CB as distinguished from the HARQ-ACK for other PDSCHs (e.g., a TB-based SPS PDSCH, and / or a DG PDSCH). A base station that receives such a HARQ-ACK CB can perform appropriate retransmission control, etc., thereby improving communication efficiency.

[0319] In addition, the example of the order described as ascending in each option of the above-mentioned proposal 2 can also be replaced with descending. In addition, in each option of proposal 2, ascending and descending orders can also exist in a mixed manner. For example, the order of a plurality of cells can also be based on the ascending order of the index set by the SPS, and the descending order of the DL time slot.

[0320] In addition, the HARQ-ACK CB is generated by the terminal, but which construction process of the above-mentioned Proposal 2 is used for generation can be determined by the terminal, instructed by the base station, or stipulated by the specification.

[0321] <Proposal 3>

[0322] In Proposal 3, it is proposed to dynamically / adaptively update the application of CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CGPUSCH transmission.

[0323] The terminal 20 can dynamically update the application of CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CG PUSCH transmission for SPS PDSCH / CG PUSCH according to the instructions of the base station 10, and can also adaptively update the application of CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CG PUSCH transmission for SPS PDSCH / CG PUSCH according to a pre-set semi-static mode.

[0324] (1) Dynamic Update

[0325] The following describes (1-1) the update indication method and (1-2) the range of SPS / CG settings that are the subject of update in the case of dynamically updating the application of CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CG PUSCH transmission.

[0326] (1-1) Update instruction method

[0327] In the present application, the following options are proposed for a method of indicating dynamic updates of applications of CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CG PUSCH transmission for SPS PDSCH / CG PUSCH.

[0328] (Option 1) DCI-based indication

[0329] The base station 10 may instruct the terminal 20, through DCI, on application update of SPS PDSCH / CG PUSCH, CBG-based SPS PDSCH / CG PUSCH transmission, or TB-based SPS PDSCH / CG PUSCH transmission. In this case, the following variations are considered.

[0330] (Option 1-1)

[0331] A new DCI format may be prepared, and the base station 10 uses the new DCI format to indicate an update of an application for SPS PDSCH / CGPUSCH, CBG-based SPS PDSCH / CG PUSCH transmission, or TB-based SPS PDSCH / CG PUSCH transmission. In this case, the new DCI format may have a new RNTI (Radio Network Temporary Identifier) ​​or may have an existing RNTI instead of a new RNTI.

[0332] (Option 1-2)

[0333] Alternatively, the base station 10 may use an existing DCI format with a new RNTI to indicate an update of application of SPS PDSCH / CGPUSCH, CBG-based SPS PDSCH / CG PUSCH transmission, or TB-based SPS PDSCH / CG PUSCH transmission.

[0334] (Options 1-3)

[0335] Alternatively, the base station 10 may use an existing DCI format with an existing RNTI to indicate an update of application of SPS PDSCH / CGPUSCH, CBG-based SPS PDSCH / CG PUSCH transmission, or TB-based SPS PDSCH / CG PUSCH transmission.

[0336] (Option 1-3A)

[0337] In this case, a new field may be set, and information indicating the application update of CBG-based SPS PDSCH / CGPUSCH transmission or TB-based SPS PDSCH / CG PUSCH transmission may be written in the new field. In addition, the new field may also be multiple.

[0338] (Option 1-3B)

[0339] Alternatively, information indicating an update of an application of CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CG PUSCH transmission may be written in an unused field within an existing field. In addition, there may be multiple unused fields. In this case, for the purpose of dynamically updating the application of CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CG PUSCH transmission, the value of a specific field within the existing unused field is used to indicate whether to reinterpret the DCI format. The terminal 20 can determine the update of the application of CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CG PUSCH transmission by reinterpreting the DCI format.

[0340] (Option 2) MAC CE-based indication

[0341] The base station 10 may instruct the terminal 20 to update the application of SPS PDSCH / CG PUSCH, CBG-based SPS PDSCH / CG PUSCH transmission, or TB-based SPS PDSCH / CG PUSCH transmission through MAC CE. In this case, the following variations are considered.

[0342] (Option 2-1)

[0343] A new MAC CE may be prepared, and the base station 10 uses the new MAC CE to indicate an update of application of CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CG PUSCH transmission for SPS PDSCH / CG PUSCH.

[0344] (Option 2-2)

[0345] Alternatively, the base station 10 may use an existing MAC CE with a new octet to indicate an update of application of SPS PDSCH / CG PUSCH, CBG-based SPS PDSCH / CG PUSCH transmission, or TB-based SPS PDSCH / CG PUSCH transmission.

[0346] (Option 2-3)

[0347] Alternatively, the base station 10 may use an existing MAC CE with an existing eight-bit byte to indicate an update to the application of CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CGPUSCH transmission for SPS PDSCH / CG PUSCH. In this case, the reserved bit is used to indicate whether the MAC CE is interpreted as an update purpose for CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CG PUSCH transmission.

[0348] (1-2) Range of SPS / CG settings to be updated

[0349] In the present application, it is proposed to apply the updated SPS / CG setting range of CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CG PUSCH transmission.

[0350] (Alt 1)

[0351] The scope of application of the dynamically updated CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CGPUSCH transmission may also be set per SPS / CG based on a DCI / MAC CE.

[0352] In this case, the base station 10 may instruct the terminal 20 to update the application of CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CG PUSCH transmission in the SPS / CG setting by using an index representing the target SPS / CG setting.

[0353] (Alt 1-1)

[0354] The index may also be explicitly indicated to the terminal 20 through a field / bit of the DCI or MAC CE.

[0355] (Alt 1-2)

[0356] Alternatively, the index may be implicitly indicated to the terminal 20. For example, when the dynamic update of the parameters of the SPS PDSCH is indicated by the MAC CE, the index of the SPS configuration of the object is the index of the SPS configuration of the SPS PDSCH occasion conveying the MAC CE.

[0357] (Alt 2)

[0358] The application scope of the dynamically updated CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CGPUSCH transmission may also be all (activated) SPS / CG settings based on one DCI / MAC CE.

[0359] (Alt 2-1)

[0360] In this case, a common indication field / bit may be set for all SPS / CG settings.

[0361] (Alt 2-2)

[0362] Alternatively, a separate indication field / bit may be set for all SPS / CG settings.

[0363] (Alt 3)

[0364] The application scope of the dynamically updated CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CGPUSCH transmission may also be each group of SPS / CG settings based on a DCI / MAC CE.

[0365] (Alt 3-1A)

[0366] In this case, a common indication field / bit may be set for the group set for SPS / CG.

[0367] (Alt 3-1B)

[0368] Alternatively, a separate indication field / bit may be set for the group configured for SPS / CG.

[0369] In addition, in this case, the base station 10 can also instruct the terminal 20 to dynamically update the application of CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CGPUSCH transmission in the SPS / CG setting by using the index of the group representing the object's SPS / CG setting.

[0370] (Alt 3-2A)

[0371] The index may also be explicitly indicated to the terminal 20 through a field / bit of the DCI or MAC CE.

[0372] (Alt 3-2B)

[0373] Alternatively, the index may be implicitly indicated to the terminal 20. For example, when the dynamic update of the parameters of the SPS PDSCH is indicated by the MAC CE, the index of the SPS configuration of the object is the index of the SPS configuration of the SPS PDSCH timing conveying the MAC CE.

[0374] (2) Update based on semi-static model

[0375] The following describes an application of updating CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CG PUSCH transmission based on a semi-static mode.

[0376] (Alt 1)

[0377] In Alt 1, the terminal 20 applies CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CG PUSCH transmission based on the index value of the SPS / CG occasion.

[0378] For example, the terminal 20 may apply CBG-based SPS PDSCH / CG PUSCH transmission when the index value N of the SPS / CG opportunity satisfies N mod X1 = {Y1_1, Y1_2, ...}, and may apply TB-based SPS PDSCH / CG PUSCH transmission when N mod X1 = {Y2_1, Y2_2, ...}. Here, N is an integer greater than 1, X1 is an integer greater than 2, Y1_1, Y1_2, ... and Y2_1, Y2_2, ... are integers greater than 1 and less than (X1-1), respectively, and are different numbers.

[0379] In addition, the values ​​of X1, Y1_1, Y1_2, Y2_1, Y2_2, etc. may be predefined in the specification or the like, or may be notified to the terminal 20 through higher layer signaling such as RRC.

[0380] In the case where it is pre-specified in the specification, a different combination of values ​​may be specified for each XR service. In addition, in the case of notification through high-layer signaling, a different combination of values ​​may be configured for each XR service and / or for each SPS / CG setting.

[0381] (Alt 2)

[0382] In Alt 2, the terminal 20 applies CBG-based SPS PDSCH / CG PUSCH transmission or TB-based SPS PDSCH / CG PUSCH transmission based on the index value of the time slot of the SPS / CG opportunity.

[0383] For example, the terminal 20 may apply CBG-based SPS PDSCH / CG PUSCH transmission when the index value M of the time slot of the SPS / CG opportunity satisfies M mod X1={Y1_1, Y1_2, ...}, and may apply TB-based SPS PDSCH / CG PUSCH transmission when M mod X1={Y2_1, Y2_2, ...}. Here, M is an integer greater than 1, X1 is an integer greater than 2, and Y1_1, Y1_2, ... and Y2_1, Y2_2, ... are any integers greater than 0 and less than (X1-1), and are different numbers.

[0384] In addition, the values ​​of X1, Y1_1, Y1_2, Y2_1, Y2_2, etc. may be predefined in the specification or the like, or may be notified to the terminal 20 through higher layer signaling such as RRC.

[0385] In the case of pre-specified in the specification, different combinations of values ​​may be specified for each XR service. In addition, in the case of notification through high-layer signaling, different combinations of values ​​may be configured for each XR service and / or for each SPS / CG setting.

[0386] (3) Impact of the updated HARK-ACK CB

[0387] The following describes the possible impact of HARQ-ACK CB when the application of CBG-based SPS PDSCH transmission or TB-based SPS PDSCH transmission is dynamically updated.

[0388] (3-1)

[0389] In the case of dynamically updated applications of CBG-based SPS PDSCH transmission or TB-based SPS PDSCH transmission, the HARQ-ACK CB described in at least Option 1 and Option 2-1 of Proposal 2 above may be directly reused.

[0390] (3-2)

[0391] In addition, the order of the SPS HARQ-ACK bits of Option 2-2 and Option 3 of the above-mentioned Proposal 2 can also be reused. However, it is necessary to clarify whether the SPS setting should be included in the "TB-based SPS setting" or the "CBG-based SPS setting". In this regard, the following alternative is proposed.

[0392] (Alt 1)

[0393] In Alt 1, the terminal 20 may include only one SPS setting in either the "TB-based SPS setting" part or the "CBG-based SPS setting" part.

[0394] (Alt 1-1)

[0395] The terminal 20 may determine the portion including the SPS setting based on whether the CBG-based SPS PDSCH transmission is enabled in the SPS setting.

[0396] For example, when CBG-based SPS PDSCH transmission is valid for SPS setting, regardless of whether the current SPS PDSCH with SPS setting of HARQ-ACK reported through HARQ-ACK CB is CBG-based SPS PDSCH transmission or TB-based SPS PDSCH transmission, the terminal 20 can include the SPS setting in the "CBG-based SPS setting". In addition, in other cases, the terminal 20 can also include the SPS setting in the "TB-based SPS setting".

[0397] (Alt 1-2)

[0398] In addition, the terminal 20 can also determine the part including the SPS setting based on the presence or absence of CBG-based SPS PDSCH transmission or TB-based SPS PDSCH transmission for SPS PDSCH according to the SPS setting of HARQ-ACK reported through the HARQ-ACK CB.

[0399] For example, when there is a HARQ-ACK corresponding to a CBG-based SPS PDSCH transmission or a TB-based SPS PDSCH transmission in at least one SPS PDSCH of the SPS configuration that should be reported through the HARQ-ACK PUCCH, the SPS configuration is an object of the "CBG / TB based SPS configuration". Furthermore, regardless of whether there is an SPS configuration with a TB-based SPS PDSCH transmission and a HARQ-ACK that should be reported in the same HARQ-ACK CB, the terminal 20 reports the SPS PDSCH with the SPS configuration of the HARQ-ACK included in the same HARQ-ACK PUCCH in the "CBG / TB based SPS configuration" block. In addition, in other cases, the terminal 20 may also include the SPS configuration in the "TB / CBG based SPS configuration". That is, in the case where there is HARQ-ACK sent for the CBG-based SPS PDSCH, the SPS PDSCH set by the SPS is reported in the CBG-based SPS setting block, and in the case where the HARQ-ACK does not exist, the SPS PDSCH set by the SPS is reported in the TB-based SPS setting block. Similarly, in the case where there is HARQ-ACK sent for the TB-based SPS PDSCH, the SPS PDSCH set by the SPS is reported in the TB-based SPS setting block, and in the case where the HARQ-ACK does not exist, the SPS PDSCH set by the SPS is reported in the CBG-based SPS setting block.

[0400] (Alt 2)

[0401] In Alt 2, the terminal 20 may also include the SPS setting in both the "TB-based SPS setting" part and the "CBG-based SPS setting" part when there are a TB-based SPS PDSCH with an SPS setting of HARQ-ACK that should be reported through the HARQ-ACK CB and a CBG-based SPS PDSCH.

[0402] For example, when the SPS setting is included in the "TB-based SPS setting" part, only the HARQ-ACK of the SPS PDSCH transmitted with the TB-based SPS PDSCH is included. In addition, when the SPS setting is included in the "TB-based SPS setting" part, only the HARQ-ACK of the SPS PDSCH transmitted with the CBG-based SPS PDSCH is included.

[0403] (3-3)

[0404] In addition, as described in Option 4 of Proposal 2 above, separate sub-codebooks can also be reused. However, it is necessary to clarify whether the HARQ-ACK of the SPS PDSCH is included in the TB based sub-codebook or the CBG based sub-codebook. In this regard, the following options are proposed.

[0405] (Alt 1)

[0406] In Alt 1, the terminal 20 includes the HARQ-ACK for the SPS PDSCH of the same SPS configuration reported through the same PUCCH in the same subcodebook.

[0407] (Alt 1-1)

[0408] The terminal 20 sets whether to include the HARQ-ACK of the SPS PDSCH in the TB-based subcodebook or the CBG-based subcodebook based on whether the CBG-based SPS PDSCH / CG PUSCH transmission is valid in the SPS setting.

[0409] For example, when CBG-based SPS PDSCH / CG PUSCH transmission is valid for SPS setting, regardless of whether the current SPS PDSCH set by SPS is CBG-based SPS PDSCH transmission or TB-based SPS PDSCH transmission, the terminal 20 includes the HARQ-ACK of the SPS PDSCH in the CBG-based subcodebook. In other cases, the terminal 20 includes the HARQ-ACK of the SPS PDSCH in the TB-based subcodebook.

[0410] (Alt 1-2)

[0411] The terminal 20 sets whether to include the HARQ-ACK of the SPS PDSCH in the TB-based subcodebook or the CBG-based subcodebook based on whether there is CBG-based SPS PDSCH transmission / TB-based SPS PDSCH transmission for the SPS PDSCH, which has the SPS setting of the HARQ-ACK to be reported through the HARQ-ACK CB.

[0412] For example, when there is a CBG-based SPS PDSCH transmission corresponding to at least one SPS PDSCH that should be reported through the HARQ-ACK PUCCH, the terminal 20 includes the HARQ-ACK for the SPS PDSCH set for the SPS in the CBG-based subcodebook. In other cases, the terminal 20 includes the HARQ-ACK for the SPS PDSCH in the TB-based subcodebook.

[0413] On the contrary, when there is a TB-based SPS PDSCH transmission corresponding to at least one SPS PDSCH that should be reported through the HARQ-ACK PUCCH, the terminal 20 includes the HARQ-ACK for the SPS PDSCH set for the SPS in the TB-based subcodebook. In other cases, the terminal 20 includes the HARQ-ACK for the SPS PDSCH in the CBG-based subcodebook.

[0414] (Alt 2)

[0415] In Alt 2, the terminal 20 includes the HARQ-ACK for the SPS PDSCH of the same SPS configuration reported through the same PUCCH in separate subcodebooks.

[0416] For example, the terminal 20 includes the HARQ-ACK of the SPS PDSCH transmitted for the TB-based SPS PDSCH in the TB-based subcodebook, and includes the HARQ-ACK of the SPS PDSCH transmitted for the CBG-based SPS PDSCH in the CBG-based subcodebook.

[0417] (4) Number of HARQ-ACK bits per SPS PDSCH

[0418] When the SPS setting is valid for CBG-based SPS PDSCH transmission, the terminal 20 sets the number of HARQ-ACK bits for each SPS PDSCH in consideration of a change in TB-based SPS PDSCH transmission or CBG-based SPS PDSCH transmission.

[0419] For example, for the CBG-based SPS PDSCH set by SPS, the number of HARQ-ACK bits of the CBG-based SPS setting described in Proposal 2 can also be reused to set the number of HARQ-ACK bits (i.e., M bits).

[0420] In addition, for the TB-based SPS PDSCH set by SPS, the number of HARQ-ACK bits of the CBG-based SPS setting can also be set to 1 bit or M bits (that is, the same as the number of HARQ-ACK bits of the CBG-based SPSDSCH (CBG based SPSDSCH) set by the same SPS).

[0421] Below, use Fig.13 Specific examples of Alt 1 and Alt 2 are described.

[0422] In the Alt 1-1 or Alt 1-2 above, Fig.13 In the CBG-based SPS configuration part, SPS config#1 is included. In addition, two SPS PDSCHs in two time slots are located at the position of SPS config#1.

[0423] In addition, in Alt 2 above, Fig.13 In the TB-based SPS setting part and the CBG-based SPS setting part, SPS config#1 is included in both. In the TB-based SPS setting part, only the first PDSCH time slot exists at the position of SPS config#1. In addition, in the CBG-based SPS setting part, only the second PDSCH time slot exists at the position of SPS config#1.

[0424] (Effect)

[0425] According to Proposal 3 described above, in SPS PDSCH / CG PUSCH, when either CBG-based transmission or TB-based transmission is applied, dynamic / adaptive updates can be performed on them. When CBG-based SPS PDSCH / CG PUSCH transmission is applied, it is also possible to dynamically switch to TB-based SPS PDSCH / CG PUSCH transmission application in accordance with the instructions of the base station 10. In addition, it is also possible to adaptively switch between CBG-based SPS PDSCH / CG PUSCH transmission and TB-based SPS PDSCH / CG PUSCH transmission in accordance with a pre-set semi-static mode.

[0426] <Proposal 4>

[0427] Proposal 4 proposes a criterion for the terminal 20 to set whether a single-codeword or a dual-codeword is applied to the SPS PDSCH / CG PUSCH when a maximum of two codewords per 1 TB are supported in the SPS PDSCH or CG PUSCH.

[0428] As a specific example of Proposal 4, the following options are proposed.

[0429] (Alt 1)

[0430] In Alt 1, the terminal 20 sets whether to apply a single codeword or a double codeword for the SPS / CG setting based on a higher-layer parameter (RRC parameter) which is setting information of the maximum number of codewords set for each SPS / CG setting or a higher-layer parameter (RRC parameter) which is setting information of the maximum number of codewords set for all SPS / CG settings, for example, maxNrofCodeWordsSpsPdsch / maxNrofCodeWordsCgPusch.

[0431] For example, when maxNrofCodeWordsSpsPdsch indicates a two-codeword, the terminal 20 may receive a double-codeword for the SPS setting, and receive a single-codeword in other cases. Similarly, when maxNrofCodeWordsCgPusch indicates a double-codeword, the terminal 20 may send a double-codeword for the CG setting, and send a single-codeword in other cases.

[0432] (Alt 2)

[0433] In Alt 2, the terminal 20 sets which of the single codeword and the double codeword to be applied for the SPS / CG setting based on a combination of a higher-layer parameter (RRC parameter) which is setting information of the maximum number of codewords set for each SPS / CG setting or a higher-layer parameter (RRC parameter) which is setting information of the maximum number of codewords set for all SPS / CG settings, and an activated DCI format.

[0434] For example, when maxNrofCodeWordsSpsPdsch indicates a double codeword and a specific field of the activated DCI format indicates a specific DCI format (e.g., DCI 1_1), the terminal 20 may receive a double codeword for the SPS setting, and may receive a single codeword in other cases. Similarly, when maxNrofCodeWordsCgPusch indicates a double codeword and a specific field of the activated DCI format indicates a specific DCI format (e.g., DCI 1_1), the terminal 20 may send a double codeword for the CG setting, and may send a single codeword in other cases.

[0435] Alternatively, the terminal 20 may receive a double codeword for the SPS setting when at least one of maxNrofCodeWordsSpsPdsch indicates a double codeword and a specific field of the activated DCI format indicates a specific DCI format (e.g., DCI 1_1) is satisfied, and receive a single codeword in other cases. Similarly, the terminal 20 may send a double codeword for the CG setting when at least one of maxNrofCodeWordsCgPusch indicates a double codeword and a specific field of the activated DCI format indicates a specific DCI format (e.g., DCI 1_1) is satisfied, and send a single codeword in other cases.

[0436] (Alt 3)

[0437] In Alt 3, the terminal 20 sets which of the single codeword and the double codeword to be applied for the SPS / CG setting based on a combination of a higher-layer parameter (RRC parameter) which is setting information of the maximum number of codewords set for each SPS / CG setting or a higher-layer parameter (RRC parameter) which is setting information of the maximum number of codewords set for all SPS / CG settings, and a DCI field in the activation DCI.

[0438] For example, when maxNrofCodeWordsSpsPdsch indicates a double codeword and a specific field in the activated DCI indicates activation of the double codeword, the terminal 20 may receive a double codeword for the SPS setting, and may receive a single codeword in other cases. Similarly, when maxNrofCodeWordsCgPusch indicates a double codeword and a specific field in the activated DCI indicates activation of the double codeword, the terminal 20 may send a double codeword for the CG setting, and may send a single codeword in other cases.

[0439] Alternatively, the terminal 20 may receive the double codeword for the SPS setting when at least one of maxNrofCodeWordsSpsPdsch indicating the double codeword and activation of a specific field in the DCI indicating the activation of the double codeword is satisfied, and receive the single codeword in other cases. Similarly, the terminal 20 may send the double codeword for the CG setting when at least one of maxNrofCodeWordsCgPusch indicating the double codeword and activation of a specific field in the DCI indicating the activation of the double codeword is satisfied, and send the single codeword in other cases.

[0440] In addition, the specific field within the activated DCI may be a new DCI field, an existing DCI field, or a combination of fields representing predefined values ​​(eg, an MCS field and an RV field).

[0441] When the terminal 20 sets the SPS / CG setting with dual codeword transmission, the MCS / NDI / RV fields of the first TB and the second TB in the DCI are respectively applied to the codewords of the SPS PDSCH / CGPUSCH.

[0442] (Effect)

[0443] As described above, according to Proposal 4, dual codewords can be supported even in SPS PDSCH / CG PUSCH, which is semi-persistent scheduling, so the retransmission frequency can be reduced, delay can be reduced, transmission efficiency can be improved, and reliability can be ensured.

[0444] <Proposal 5>

[0445] In Proposal 5, HARQ-ACK CB for SPS PDSCH to which two transport blocks (2-TB) are applied, for example, HARQ-ACK CB for 2-TB based SPS PDSCH is described. In addition, 2-TB may also be replaced with 2-codeword (2-codeword (CW)).

[0446] (Option 1)

[0447] In option 1, use Figure 4 The construction process of the CB of the SPS HARQ-ACK described above is reused for the construction process of the CB of the HARQ-ACK for the 2-TB based SPS PDSCH. Here, it may be that only the number of HARQ-ACK bits is different between the HARQ-ACK CB for the 2-TB based SPS PDSCH and the HARQ-ACK CB for the 1-TB based SPS PDSCH. In other words, it may be that the number of HARQ-ACK bits is different between the HARQ-ACK CB for the 2-TB based SPS PDSCH and the HARQ-ACK CB for the 1-TB based SPS PDSCH, and on the other hand, elements other than the number of HARQ-ACK bits are common between the HARQ-ACK CB for the 2-TB based SPS PDSCH and the HARQ-ACK CB for the 1-TB based SPS PDSCH. Elements other than the number of HARQ-ACK bits include, for example, a decision (scheduling) regarding the order of fields constituting the CB (or HARQ-ACK included in the fields).

[0448] The order of the SPS HARQ-ACK bits in the 2-TB SPS HARQ-ACK CB (order of fields) may be first based on the ascending order of the cell index of the serving cell, then based on the ascending order of the index set by the SPS, and then based on the ascending order of the index of the DL time slot. The order of the SPS HARQ-ACK bits may also be common between the HARQ-ACK CB for the 2-TB based SPS PDSCH and the HARQ-ACK CB for the 1-TB based SPS PDSCH.

[0449] (Option 2)

[0450] In Option 2 of Proposal 5, the same order as Option 2 of Proposal 2 can be adopted. For example, in Option 2 of Proposal 5, the following structure can be adopted: in Option 2 of Proposal 2, the "TB-based SPS configuration" is replaced with the "single-codeword based SPS configuration", and the "CBG-based SPS configuration" is replaced with the "two-codeword based SPS configuration".

[0451] (Option 3)

[0452] In Option 3 of Proposal 5, the same order as Option 3 of Proposal 2 can be adopted. For example, in Option 3 of Proposal 5, a structure can be adopted in which the "TB-based SPS setting" in Option 3 of Proposal 2 is replaced by the "single codeword-based SPS setting", and the "CBG-based SPS setting" is replaced by the "dual codeword-based SPS setting".

[0453] (About the number of HARQ-ACK bits in Proposal 5)

[0454] In each option of the above-mentioned proposal 5, the number of HARQ-ACK bits per SPS PDSCH is described. The number of HARQ-ACK bits per SPS PDSCH can be defined by any one of the following Alt 1 to Alt 3.

[0455] (Alt.1)

[0456] In Alt.1, the number of HARQ-ACK bits for each SPS PDSCH can be the same value for all SPS PDSCHs in all cells. In the case where there is at least one SPS PDSCH across all cells that is set to transmit a maximum of 2 codewords, the number of HARQ-ACK bits for any SPS PDSCH in any cell can be 2. Otherwise, the number of HARQ-ACK bits for any SPS PDSCH in any cell can be 1. The so-called otherwise case may be, for example, a case where there is no SPS PDSCH that is set to transmit a maximum of 2 codewords across all cells.

[0457] (Alt.2)

[0458] In Alt.2, for the SPS setting of the same service cell, the number of HARQ-ACK bits for each SPS PDSCH can be the same value. In this case, for the SPS settings of different service cells, M can be different or the same. In a cell, when there is at least one SPS PDSCH that is set to send a maximum of 2 codewords, the number of HARQ-ACK bits for any SPS PDSCH of the cell can be 2. Otherwise, the number of HARQ-ACK bits for any SPS PDSCH of the cell can be 1. The so-called not being the case may be, for example, a situation where there is no SPS PDSCH that is set to send a maximum of 2 codewords in the cell.

[0459] (Alt.3)

[0460] In Alt.3, for different SPS settings, the number of HARQ-ACK bits of each SPS PDSCH can be different or the same. For example, when the SPS setting is set to transmit a maximum of 2 codewords, the number of HARQ-ACK bits of the SPS PDSCH for the SPS setting can be 2. Otherwise, the number of HARQ-ACK bits of the SPS PDSCH for the SPS setting can be 1. The so-called otherwise case may be, for example, a case where the SPS setting is not set to transmit a maximum of 2 codewords.

[0461] (Effect)

[0462] According to Proposal 5 described above, a HARQ-ACK CB including a HARQ-ACK for a 2-TB SPS PDSCH can be constructed in an appropriate form, and therefore, HARQ-ACK feedback can be performed efficiently. For example, when SPS PDSCH transmission (SPS PDSCH transmission) with different TB numbers is performed in a certain cell, the HARQ-ACK for a 2TB SPS PDSCH transmission (2TB SPS PDSCH transmission) is included in the HARQ-ACK CB differently from the HARQ-ACK for other PDSCHs (e.g., 1TB based SPS PDSCH (1TB based SPS PDSCH), and / or DG PDSCH). A base station that receives such a HARQ-ACK CB can perform appropriate retransmission control, etc., and thus can improve communication efficiency.

[0463] In addition, the HARQ-ACK CB is generated by the terminal, but which construction process of the above-mentioned Proposal 5 is used for generation can be determined by the terminal, instructed by the base station, or stipulated by the specification.

[0464] <Proposal 6>

[0465] In Proposal 6, a dynamic / adaptive update of the application of single or dual codewords for SPS PDSCH / CG PUSCH is proposed.

[0466] The terminal 20 can dynamically update the application of single or double codewords for SPS PDSCH / CG PUSCH according to the instructions of the base station 10, or can adaptively update the application of single or double codewords for SPS PDSCH / CG PUSCH according to a pre-set semi-static mode.

[0467] (1) Dynamic Update

[0468] The following describes (1-1) the update indication method and (1-2) the range of SPS / CG settings that are the subject of update when a single codeword or dual codeword application is dynamically updated.

[0469] (1-1) Update instruction method

[0470] In the present application, the following options are proposed for a method of indicating dynamic updates of the application of single codewords or dual codewords for SPS PDSCH / CG PUSCH.

[0471] (Option 1) DCI-based indication

[0472] The base station 10 may instruct the terminal 20, through the DCI, to update the application of the single codeword or the dual codeword for the SPS PDSCH / CG PUSCH. In this case, the following modifications are conceivable.

[0473] (Option 1-1)

[0474] A new DCI format may be prepared, and the base station 10 may use the new DCI format to indicate the update of the application of a single codeword or a dual codeword for SPS PDSCH / CGPUSCH. In this case, the new DCI format may have a new RNTI (Radio Network Temporary Identifier) ​​or may have an existing RNTI instead of a new RNTI.

[0475] (Option 1-2)

[0476] Alternatively, the base station 10 may use the existing DCI format with a new RNTI to indicate the update of the application of the single codeword or the dual codeword for the SPS PDSCH / CGPUSCH.

[0477] (Options 1-3)

[0478] Alternatively, the base station 10 may use an existing DCI format with an existing RNTI to indicate an update of the application of a single codeword or a dual codeword for SPS PDSCH / CGPUSCH.

[0479] (Option 1-3A)

[0480] In this case, a new field may be provided, and information indicating the update of the application of the single code word or the double code word may be written in the new field. In addition, the number of the new fields may be plural.

[0481] (Option 1-3B)

[0482] Alternatively, information indicating the update of the application of a single code word or a double code word may be written in an unused field within an existing field. In addition, the number of unused fields may be multiple. In this case, for the purpose of dynamically updating the application of a single code word or a double code word, the value of a specific field within the existing unused field is used to indicate whether to reinterpret the DCI format. The terminal 20 can determine the update of the application of a single code word or a double code word by reinterpreting the DCI format.

[0483] (Option 2) MAC CE-based indication

[0484] The base station 10 may instruct the terminal 20 to update the application of the single codeword or the dual codeword for the SPS PDSCH / CG PUSCH through the MAC CE. In this case, the following variations are conceivable.

[0485] (Option 2-1)

[0486] A new MAC CE may be prepared, and the base station 10 uses the new MAC CE to indicate the update of the application of the single codeword or the dual codeword for the SPS PDSCH / CG PUSCH.

[0487] (Option 2-2)

[0488] Alternatively, the base station 10 may use an existing MAC CE with a new octet to indicate an update of the application of a single codeword or a dual codeword for the SPS PDSCH / CG PUSCH.

[0489] (Option 2-3)

[0490] Alternatively, the base station 10 may use an existing MAC CE with an existing octet to indicate an update of the application of a single codeword or a dual codeword for SPS PDSCH / CG PUSCH. In this case, the reserved bit is used to indicate whether the MAC CE is interpreted as an update purpose for a single codeword or a dual codeword.

[0491] (1-2) Range of SPS / CG settings to be updated

[0492] In this application, the application of single codeword or dual codeword is proposed to be updated within the scope of SPS / CG settings.

[0493] (Alt 1)

[0494] The scope of application of the dynamically updated single codeword or dual codeword can also be set per SPS / CG based on a DCI / MAC CE.

[0495] In this case, the base station 10 may instruct the terminal 20 to update the application of the single codeword or the double codeword in the SPS / CG setting by using the index representing the SPS / CG setting of the object.

[0496] (Alt 1-1)

[0497] The index may also be explicitly indicated to the terminal 20 through a field / bit of the DCI or MAC CE.

[0498] (Alt 1-2)

[0499] Alternatively, the index may be implicitly indicated to the terminal 20. For example, when the dynamic update of the parameters of the SPS PDSCH is indicated by the MAC CE, the index of the SPS configuration of the object is the index of the SPS configuration of the SPS PDSCH timing conveying the MAC CE.

[0500] (Alt 2)

[0501] The scope of application of the dynamically updated single codeword or dual codeword may also be based on all (activated) SPS / CG settings of a DCI / MAC CE.

[0502] (Alt 2-1)

[0503] In this case, a common indication field / bit may be set for all SPS / CG settings.

[0504] (Alt 2-2)

[0505] Alternatively, a separate indication field / bit may be set for all SPS / CG settings.

[0506] (Alt 3)

[0507] The scope of application of the dynamically updated single codeword or dual codeword may also be based on each group of SPS / CG settings of a DCI / MAC CE.

[0508] (Alt 3-1A)

[0509] In this case, a common indication field / bit may be set for the group set for SPS / CG.

[0510] (Alt 3-1B)

[0511] Alternatively, a separate indication field / bit may be set for the group configured for SPS / CG.

[0512] In this case, the base station 10 may instruct the terminal 20 to dynamically update the application of the single codeword or the dual codeword in the SPS / CG setting by using the index of the group representing the object's SPS / CG setting.

[0513] (Alt 3-2A)

[0514] The index may also be explicitly indicated to the terminal 20 through a field / bit of the DCI or MAC CE.

[0515] (Alt 3-2B)

[0516] Alternatively, the index may be implicitly indicated to the terminal 20. For example, when the dynamic update of the parameters of the SPS PDSCH is indicated by the MAC CE, the index of the SPS configuration of the object is the index of the SPS configuration of the SPS PDSCH timing conveying the MAC CE.

[0517] (2) Update based on semi-static model

[0518] The following describes an application in which a single codeword or a double codeword is updated based on a semi-static mode.

[0519] (Alt 1)

[0520] In Alt 1, the terminal 20 applies a single codeword or a double codeword based on the index value of the SPS / CG opportunity.

[0521] For example, the terminal 20 may apply a single codeword when the index value N of the SPS / CG opportunity satisfies N mod X1 = {Y1_1, Y1_2, ...}, and may apply a double codeword when N mod X1 = {Y2_1, Y2_2, ...}. Here, N is an integer greater than 1, X1 is an integer greater than 2, and Y1_1, Y1_2, ... and Y2_1, Y2_2, ... are integers greater than 1 and less than (X1-1), and are different numbers.

[0522] In addition, the values ​​of X1, Y1_1, Y1_2, Y2_1, Y2_2, etc. may be predefined in the specification or the like, or may be notified to the terminal 20 through higher layer signaling such as RRC.

[0523] In the case of pre-specified in the specification, different combinations of values ​​may be specified for each XR service. In addition, in the case of notification through high-layer signaling, different combinations of values ​​may be configured for each XR service and / or for each SPS / CG setting.

[0524] (Alt 2)

[0525] In Alt 2, the terminal 20 applies a single codeword or a double codeword based on the index value of the time slot of the SPS / CG opportunity.

[0526] For example, the terminal 20 may apply a single codeword when the index value M of the time slot of the SPS / CG opportunity satisfies M mod X1 = {Y1_1, Y1_2, ...}, and may apply a double codeword when M mod X1 = {Y2_1, Y2_2, ...}. Here, M is an integer greater than 1, X1 is an integer greater than 2, and Y1_1, Y1_2, ... and Y2_1, Y2_2, ... are any integers greater than 0 and less than (X1-1), and are different numbers.

[0527] In addition, the values ​​of X1, Y1_1, Y1_2, Y2_1, Y2_2, etc. may be predefined in the specification or the like, or may be notified to the terminal 20 through higher layer signaling such as RRC.

[0528] In the case of pre-specified in the specification, different combinations of values ​​may be specified for each XR service. In addition, in the case of notification through high-layer signaling, different combinations of values ​​may be configured for each XR service and / or for each SPS / CG setting.

[0529] (3) Impact of the updated HARK-ACK CB

[0530] In the construction of the HARQ-ACK CB of Rel-15 / 16, when the transmission of the maximum double codeword is valid (on the serving cell), the HARQ-ACK position of two TBs is reserved regardless of whether the PDSCH actually scheduled is a single TB transmission or a two TB transmission. Therefore, there is no need to further consider different operations for the dynamic update of the SPS transmission of single codewords and double codewords. That is, it is considered that the HARQ-ACK CB described in Proposal 5 is most likely to be reused.

[0531] (Effect)

[0532] According to the above-described proposal 6, when either a single codeword or a dual codeword is applied in the SPS PDSCH / CG PUSCH, it is possible to dynamically / adaptively update them. For example, when a single codeword is applied, it is possible to dynamically switch to the application of a dual codeword in accordance with the instruction of the base station 10. In addition, it is also possible to adaptively switch and apply a single codeword and a dual codeword in accordance with a pre-set semi-static mode.

[0533] (Transformation)

[0534] In addition, the above description shows that any one of a plurality of options is applied to one setting. For example, which of a plurality of options is applied and / or which of a plurality of options is applied can be determined by the following method.

[0535] ·Set by high-level parameters.

[0536] UE reports as UE capability(ies).

[0537] ·Recorded in the specification book.

[0538] Determined based on higher layer parameter settings and reported UE capabilities.

[0539] Determined by a combination of two or more of the above determinations.

[0540] In addition, the so-called high-level parameters may be RRC parameters, MAC CE (Media Access Control Control Element), or a combination thereof.

[0541] In addition, the terminal may not assume that CBG-based SPS transmission and two-codeword SPS transmission are valid at the same time. In other words, when one of CBG-based SPS transmission and two-codeword SPS transmission is valid, the terminal may not assume that the other is valid. In addition, the terminal may also assume that CBG-based SPS transmission and two-codeword SPS transmission are valid at the same time.

[0542] In addition, the terminal may not assume that CBG-based CG PUSCH transmission and dual-codeword CG PUSCH transmission are valid at the same time. In other words, when one of CBG-based CG PUSCH transmission and dual-codeword CG PUSCH transmission is valid, the terminal may not assume that the other is valid. In addition, the terminal may also assume that CBG-based CG PUSCH transmission and dual-codeword CG PUSCH transmission are valid at the same time.

[0543] In addition, CBG-based SPS transmission and dual-codeword SPS transmission can also be supported simultaneously. The number of HARQ-ACK bits corresponding to the SPS PDSCH when dual-codeword SPS transmission (two codeword SPS transmission) and CBG-based transmission are activated at the same time can be 2×M. Here, M can be determined in the same way as the number of HARQ-ACK bits M shown in the above-mentioned Proposal 2, for example. Alternatively, the number of HARQ-ACK bits corresponding to the SPS PDSCH when dual-codeword SPS transmission and CBG-based transmission are activated at the same time can also be determined based on the number of HARQ-ACK bits for CBG-based transmission shown in Proposal 2 and the number of HARQ-ACK bits for dual-codeword SPS transmission shown in Proposal 5.

[0544] In addition, it can also support CBG-based CG PUSCH transmission and dual-codeword CG PUSCH transmission at the same time.

[0545] <UE capability>

[0546] The UE capability indicating the capability of the UE may include the following information indicating the capability of the UE. In addition, the information indicating the capability of the UE may be equivalent to the information defining the capability of the UE. In addition, a UE capability indicating one of the following items may be notified, or a UE capability indicating multiple items may be notified.

[0547] Information defining whether the UE supports CBG-based SPS PDSCH transmission.

[0548] Information defining whether the UE supports CBG-based CG PUSCH transmission.

[0549] Information defining whether the UE supports dual codeword SPS PDSCH transmission.

[0550] Information defining whether the UE supports dual codeword CG PUSCH transmission.

[0551] Defines whether the UE supports information enabling CBG-based SPS PDSCH transmission and dual-codeword SPS PDSCH transmission simultaneously.

[0552] Defines whether the UE supports information enabling simultaneous validity of CBG-based CG PUSCH transmission and dual-codeword CG PUSCH transmission.

[0553] The above is an explanation of the present disclosure. In addition, the division of items in the above description is not essential in the present disclosure, and matters recorded in two or more items can be used in combination as needed, and matters recorded in one item can also be applied to matters recorded in another item (as long as there is no contradiction).

[0554] <Hardware structure, etc.>

[0555] In addition, the block diagram used in the description of the above-mentioned embodiment shows a block of a functional unit. These functional blocks (structural units) are implemented by any combination of at least one of hardware and software. In addition, the implementation method of each functional block is not particularly limited. That is, each functional block can be implemented using a device that is physically or logically combined, or two or more devices that are physically or logically separated can be directly or indirectly (for example, using wired, wireless, etc.) connected and implemented using these multiple devices. The functional block can also be implemented by combining the above-mentioned one device or the above-mentioned multiple devices with software.

[0556] Functions include judging, deciding, determining, calculating, calculating, processing, deriving, investigating, searching, confirming, receiving, sending, outputting, accessing, solving, selecting, selecting, establishing, comparing, assuming, expecting, regarding, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but are not limited to these. For example, a functional block (structural unit) that implements a sending function is called a transmitting unit or a transmitter. Any one of them is as described above, and the implementation method is not particularly limited.

[0557] For example, a base station, a terminal, etc. in one embodiment of the present disclosure may also function as a computer that performs processing of the wireless communication method of the present disclosure. Fig.14 1 is a diagram showing an example of a hardware structure of a base station 100 and a terminal 200 involved in an embodiment of the present disclosure. The base station 100 and the terminal 200 described above may also be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0558] In the following description, the expression "device" can be rewritten as circuit, equipment, unit, etc. The hardware configuration of base station 100 and terminal 200 may include one or more of the devices shown in the figures, or may exclude some of the devices.

[0559] Regarding each function in the base station 100 and the terminal 200, this is achieved by reading specific software (program) into hardware such as the processor 1001 and the memory 1002, so that the processor 1001 performs calculations and controls communication based on the communication device 1004, or controls at least one of the reading and writing of data in the memory 1002 and the storage 1003.

[0560] The processor 1001 controls the entire computer by, for example, operating an operating system. The processor 1001 may also be composed of a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, registers, etc. For example, the control units 103, 203, etc. described above may also be implemented by the processor 1001.

[0561] In addition, the processor 1001 reads the program (program code), software module, data, etc. from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and performs various processes according to them. As a program, a program that enables a computer to perform at least a part of the operations described in the above-mentioned embodiment can be used. For example, the control unit 103 of the base station 100, the control unit 203 of the terminal 200, etc. can be implemented by a control program stored in the memory 1002 and operated in the processor 1001, and can also be implemented for other functional blocks. The above-mentioned various processes are described as being performed by one processor 1001, but can also be performed simultaneously or sequentially by more than two processors 1001. The processor 1001 can also be implemented by more than one chip. In addition, the program can also be sent from the network via an electrical communication line.

[0562] The memory 1002 is a computer-readable recording medium, and may be composed of at least one of a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), a RAM (Random Access Memory), etc. The memory 1002 may also be referred to as a register, a cache, a main memory (main storage device), etc. The memory 1002 can store executable programs (program codes), software modules, etc. for implementing the wireless communication method involved in one embodiment of the present disclosure.

[0563] The storage 1003 is a computer-readable recording medium, and may be, for example, composed of at least one of an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a floppy disk, an optical magnetic disk (e.g., a compact disk, a digital versatile disk, a Blu-ray (registered trademark) disk), a smart card, a flash memory (e.g., a card, a stick, a key drive), a floppy (registered trademark) disk, a magnetic strip, etc. The storage 1003 may also be referred to as an auxiliary storage device. The above-mentioned storage medium may also be, for example, a database, a server, and other appropriate media including at least one of the memory 1002 and the storage 1003.

[0564] The communication device 1004 is hardware (transmitting and receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also called a network device, a network controller, a network card, a communication module, etc. In order to realize at least one of frequency division duplex (FDD: Frequency Division Duplex) and time division duplex (TDD: Time Division Duplex), the communication device 1004 can also be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. For example, the above-mentioned transmitting unit 101, receiving unit 102, receiving unit 201, and transmitting unit 202 can also be realized by the communication device 1004. The communication device 1004 can also be realized by physically or logically separating the transmitting unit and the receiving unit.

[0565] The input device 1005 is an input device that receives input from the outside (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.). The output device 1006 is an output device that performs output to the outside (e.g., a display, a speaker, an LED light, etc.). In addition, the input device 1005 and the output device 1006 may also be an integrated structure (e.g., a touch panel).

[0566] In addition, the processor 1001, the memory 1002 and other devices are connected via a bus 1007 for communicating information. The bus 1007 may be configured as a single bus or may be configured as different buses between the devices.

[0567] In addition, the base station 100 and the terminal 200 may also 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), and an FPGA (Field Programmable Gate Array), and a part or all of each functional block may also be implemented by the hardware. For example, the processor 1001 may also be implemented using at least one of these hardware.

[0568] (Supplementary Implementation Methods)

[0569] The above is a description of the embodiments of the present disclosure, but the disclosed invention is not limited to such an embodiment, and those skilled in the art should be able to understand various variations, corrections, substitutions, replacements, etc. In order to promote the understanding of the invention, specific numerical examples are used for description, but unless otherwise specified, those numerical values ​​are only examples, and any appropriate value may also be used. The distinction between the items in the above description is not essential in the present disclosure, and the items recorded in more than two items can be combined and used as needed, and the items recorded in a certain item can also be applied to the items recorded in other items (as long as there is no contradiction). The boundaries of the functional units or processing units in the functional block diagram do not necessarily correspond to the boundaries of the physical components. The actions of multiple functional units can be physically performed by one component, or the actions of one functional unit can be physically performed by multiple components. For the processing procedures described in the embodiments, the order of processing can also be changed as long as there is no contradiction. For the convenience of processing description, the base station 100 and the terminal 200 are described using a functional block diagram, but such a device can also be implemented by hardware, software or a combination thereof. According to the implementation manner of the present disclosure, the software operated by the processor of the base station 100 and the software operated by the processor of the terminal 200 may also be stored in any other appropriate storage medium such as a random access memory (RAM), a flash memory, a read-only memory (ROM), an EPROM, an EEPROM, a register, a hard disk (HDD), a removable disk, a CD-ROM, a database, a server, etc.

[0570] <Information notification and signaling>

[0571] The notification of information is not limited to the methods / implementations described in the present disclosure, and may also be performed by other methods. For example, the notification of information may also be implemented through physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), high-level signaling (e.g., RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals or a combination thereof. In addition, RRC signaling may also be referred to as an RRC message, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, and the like.

[0572] <Application System>

[0573] The various modes / implementations described in the present disclosure may also be applied to LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), 6th generation mobile communication system (6G), xth generation mobile communication system (xG)) (xG (x is, for example, an integer or a decimal)), FRA (Future Radio Access), NR (New Radio), New radio access (NX), Future generation radio access (FX), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE At least one of IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth (registered trademark), other appropriate systems, and next-generation systems expanded, modified, produced, and specified based on them. In addition, multiple systems can also be combined (for example, a combination of at least one of LTE and LTE-A and 5G, etc.) for application.

[0574] <Processing process, etc.>

[0575] The processing procedures, timings, flow charts, etc. of each method / implementation described in this disclosure may be reversed in order as long as they are not contradictory. For example, for the method described in this disclosure, the elements of various steps are presented in an illustrative order, but are not limited to the specific order presented.

[0576] <Base station operation>

[0577] In the present disclosure, a specific operation set to be performed by a base station may sometimes be performed by its upper node depending on the situation. Obviously, in a network composed of one or more network nodes having a base station, various operations performed for communication with a terminal can be performed by at least one of the base station and other network nodes other than the base station (for example, consider MME or S-GW, etc., but not limited to these). In the above, the case where there is one other network node other than the base station is illustrated, but it can also be a combination of multiple other network nodes (for example, MME and S-GW).

[0578] <Direction of input and output>

[0579] Information and the like (see the item "Information, Signal") can be output from a higher layer (or a lower layer) to a lower layer (or a higher layer), or can be input and output via a plurality of network nodes.

[0580] <Processing of input and output information, etc.>

[0581] The input and output information can be stored in a specific place (e.g., a memory) or managed using a management table. The input and output information can be overwritten, updated, or added. The output information can also be deleted. The input information can also be sent to other devices.

[0582] <Judgment method>

[0583] The determination can be made by a value represented by 1 bit (0 or 1), by a true or false value (Boolean value: true or false), or by comparison of numerical values ​​(for example, comparison with a specific value).

[0584] <Variation of method, etc.>

[0585] Each method / implementation method described in the present disclosure may be used alone or in combination, and may be used in a switchable manner as the execution progresses. In addition, notification of specific information (e.g., notification of "is X") is not limited to being performed explicitly, but may also be performed implicitly (e.g., not notifying the specific information).

[0586] The present disclosure has been described in detail above, but it is obvious to those skilled in the art that the present disclosure is not limited to the embodiments described in the present disclosure. The present disclosure can be implemented as a modification and alteration without departing from the subject matter and scope of the present disclosure determined based on the description of the claims. Therefore, the description of the present disclosure is for the purpose of illustration and does not have any restrictive meaning to the present disclosure.

[0587] <Software>

[0588] Whether software is called software, firmware, middle-ware, microcode, hardware description language, or other names, it should be broadly interpreted as meaning instructions, instruction sets, code, code segments, program code, program, sub-program, software modules, applications, software applications, software packages, routines, sub-routines, objects, executable files, execution threads, procedures, functions, etc.

[0589] In addition, software, instructions, information, etc. may also be sent and received via a transmission medium. For example, when software is sent from a website, server, or other remote source using at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.), at least one of these wired technology and wireless technology is included in the definition of transmission medium.

[0590] <Information, Signal>

[0591] Information, signals, etc. described in this disclosure may also be represented using any of a variety of different techniques. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be mentioned throughout the above description may also be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination thereof.

[0592] In addition, the terms described in the present disclosure and the terms required for understanding the present disclosure may also be replaced with terms having the same or similar meanings. For example, at least one of a channel and a code element may also be a signal (signaling). In addition, a signal may also be a message. In addition, a component carrier (CC) may also be referred to as a carrier frequency, a cell, a frequency carrier, etc.

[0593] <System, Network>

[0594] As used in this disclosure, the terms "system" and "network" are used interchangeably.

[0595] <Parameter, channel name>

[0596] In addition, the information, parameters, etc. described in the present disclosure may be expressed by absolute values, relative values ​​relative to a specific value, or other corresponding information. For example, a wireless resource may also be indicated by an index.

[0597] The names used for the above parameters are not limiting in all respects. Furthermore, sometimes the mathematical formulas for these parameters are different from those explicitly disclosed in this disclosure. Various channels (e.g., PUCCH, PDCCH, etc.) and information elements can be identified by any suitable names, and therefore, the various names assigned to these various channels and information elements are not limiting in all respects.

[0598] <Base Station>

[0599] In the present disclosure, terms such as "base station (BS)", "wireless base station", "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. There are also cases where base stations are referred to by terms such as macro cell, small cell, femto cell, and pico cell.

[0600] A base station can accommodate one or more (for example, three) cells. When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be divided into multiple smaller areas, and each smaller area can also provide communication services through a base station subsystem (for example, a small base station for indoor use (Remote Radio Head (RRH))). Terms such as "cell" or "sector" refer to a part or the entirety of the coverage area of ​​at least one of a base station and a base station subsystem that provides communication services within the coverage area.

[0601] In the present disclosure, the base station sending information to the terminal may also be rewritten as the base station instructing the terminal to control / operate based on the information.

[0602] <Mobile station>

[0603] In the present disclosure, terms such as “mobile station (MS)”, “user terminal”, “user device (UE)”, and “terminal” may be used interchangeably.

[0604] There are also cases where a mobile station is referred to by those skilled in the art as a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a hand set, a user agent, a mobile client, a client, or several other appropriate terms.

[0605] <Base station / Mobile station>

[0606] At least one of the base station and the mobile station may also be referred to as a transmitting device, a receiving device, a communication device, etc. In addition, at least one of the base station and the mobile station may also be a device carried in a mobile body, the mobile body itself, etc. The mobile body refers to a movable object, and the moving speed is arbitrary. In addition, of course, it also includes the situation where the mobile body stops. The mobile body includes, for example, vehicles, transport vehicles, cars, automatic two-wheeled vehicles, bicycles, networked cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, trailers, rickshaws, ships (ships and other watercrafts other than these), airplanes, rockets, artificial satellites, drones (registered trademarks), multi-rotor aircraft, quadcopters, balloons, and objects carried on them, in addition, but not limited to these. In addition, the mobile body may also be a mobile body that travels autonomously based on an operating instruction. It may be a means of transportation (for example, a vehicle, an airplane, etc.), a mobile body that moves in an unmanned manner (for example, a drone, an autonomous driving vehicle, etc.), or a robot (man- or unmanned). In addition, at least one of the base station and the mobile station also includes a device that does not necessarily move when performing communication operations. For example, at least one of the base station and the mobile station may also be an IoT (Internet of Things) device such as a sensor.

[0607] In addition, the base station in the present disclosure may also be rewritten as a user terminal. For example, for a structure in which the communication between a base station and a user terminal is replaced by the communication between multiple user terminals (for example, it may also be referred to as D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.), the various methods / implementations of the present disclosure may also be applied. In this case, it may also be set as a structure in which the terminal 200 has the functions possessed by the above-mentioned base station 100. In addition, terms such as "uplink" and "downlink" may also be rewritten as terms corresponding to communication between terminals (for example, "side"). For example, an uplink channel, a downlink channel, etc. may also be rewritten as a side channel.

[0608] Likewise, the user terminal in the present disclosure may be rewritten as a base station. In this case, the base station 100 may have the functions of the terminal 200 described above.

[0609] exist Fig.15 An example of the structure of vehicle 2001 is shown in FIG. Fig.15 As shown, the vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, front wheels 2007, rear wheels 2008, an axle 2009, an electronic control unit 2010, various sensors 2021 to 2029, an information service unit 2012, and a communication module 2013. Each mode / embodiment described in the present disclosure may also be applied to a communication device mounted on the vehicle 2001, for example, may be applied to the communication module 2013.

[0610] The driving unit 2002 is composed of, for example, an engine, a motor, or a combination of an engine and a motor. The steering unit 2003 is configured to include at least a steering wheel (also called a handlebar), and steers at least one of the front wheels and the rear wheels based on the operation of the steering wheel operated by a user.

[0611] The electronic control unit 2010 is composed of a microprocessor 2031, a memory (ROM, RAM) 2032, and a communication port (IO port) 2033. Signals from various sensors 2021-2029 provided in the vehicle 2001 are input to the electronic control unit 2010. The electronic control unit 2010 may also be referred to as an ECU (Electronic Control Unit).

[0612] Signals from various sensors 2021 to 2029 include a current signal from a current sensor 2021 for sensing the current of a motor, a speed signal of the front and rear wheels obtained from a speed sensor 2022, an air pressure signal of the front and rear wheels obtained from an air pressure sensor 2023, a vehicle speed signal obtained from a vehicle speed sensor 2024, an acceleration signal obtained from an acceleration sensor 2025, an accelerator pedal depression amount signal obtained from an accelerator pedal sensor 2029, a brake pedal depression amount signal obtained from a brake pedal sensor 2026, a shift lever operation signal obtained from a shift lever sensor 2027, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained from an object detection sensor 2028.

[0613] The information service unit 2012 is composed of various devices such as a car navigation system, an audio system, a speaker, a television, and a radio for providing (outputting) various information such as driving information, traffic information, and entertainment information, and one or more ECUs for controlling these devices. The information service unit 2012 uses information obtained from an external device via the communication module 2013 and the like to provide various multimedia information and multimedia services to the occupants of the vehicle 2001.

[0614] The information service unit 2012 may include input devices for accepting input from the outside (e.g., keyboard, mouse, microphone, switch, button, sensor, touch panel, etc.), and may also include output devices for implementing output to the outside (e.g., display, speaker, LED light, touch panel, etc.).

[0615] The driving assistance system unit 2030 is composed of various devices such as millimeter wave radar, LiDAR (Light Detection and Ranging), camera, positioning device (for example, GNSS, etc.), map information (for example, high-precision (HD) map, autonomous driving vehicle (AV) map, etc.), gyroscope system (for example, IMU (Inertial Measurement Unit), INS (Inertial Navigation System), etc.), AI (Artificial Intelligence) chip, AI processor, etc., for providing functions for preventing accidents before they happen or reducing the driver's driving load, and one or more ECUs for controlling these devices. In addition, the driving assistance system unit 2030 sends and receives various information via the communication module 2013, and realizes driving assistance function or autonomous driving function.

[0616] 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 sends and receives data between the drive unit 2002, the steering unit 2003, the accelerator pedal 2004, the brake pedal 2005, the shift lever 2006, the front wheel 2007, the rear wheel 2008, the axle 2009, the microprocessor 2031 and the memory (ROM, RAM) 2032 in the electronic control unit 2010, and the sensors 2021 to 2029 via the communication port 2033.

[0617] The communication module 2013 can be controlled by the microprocessor 2031 of the electronic control unit 2010, and is a communication device that can communicate with an external device. For example, various information is sent and received between external devices via wireless communication. The communication module 2013 can be located either inside or outside the electronic control unit 2010. The external device can also be, for example, a base station, a mobile station, etc.

[0618] The communication module 2013 may also transmit at least one of the signals from the various sensors 2021 to 2029 input to the electronic control unit 2010, information obtained based on the signals, and information based on input from the outside (user) obtained via the information service unit 2012 to an external device via wireless communication. The electronic control unit 2010, the various sensors 2021 to 2029, the information service unit 2012, etc. may also be referred to as an input unit that receives input. For example, the PUSCH transmitted by the communication module 2013 may also include information based on the above input.

[0619] The communication module 2013 receives various information (traffic information, signal information, vehicle-to-vehicle information, etc.) sent from an external device, and displays it to the information service unit 2012 of the vehicle 2001. The information service unit 2012 may also be referred to as an output unit for outputting information (for example, outputting information to a display, speaker, or other device based on the PDSCH (or data / information decoded from the PDSCH) received by the communication module 2013). In addition, the communication module 2013 stores various information received from the external device in a memory 2032 that can be used by the microprocessor 2031. The microprocessor 2031 may also control the drive unit 2002, the steering unit 2003, the accelerator pedal 2004, the brake pedal 2005, the shift lever 2006, the front wheel 2007, the rear wheel 2008, the axle 2009, the sensors 2021 to 2029, etc. of the vehicle 2001 based on the information stored in the memory 2032.

[0620] (Summary of Implementation Methods)

[0621] As described above, according to one method of the present disclosure, a terminal is provided, comprising: a control unit, which controls: whether the transmission of CG PUSCH (Configured Grant Physical Uplink Schered Channel) and / or the reception of SPS PDSCH (Semi-Persistent Scheduling Downlink Shared Channel) is set based on a TB (Transport Block) basis or a CBG (Code Block Group) basis; and a sending and receiving unit, which performs the transmission of the CG PUSCH and / or the reception of the SPS PDSCH based on the setting of the control unit.

[0622] According to the above structure, CBG-based transmission can also be supported in SPS PDSCH / CG PUSCH as semi-static scheduling, so the retransmission frequency can be reduced, low delay can be achieved, transmission efficiency can be improved, and reliability can be ensured.

[0623] In one embodiment, the control unit may also control, based on high-level parameters, whether the transmission of the CG PUSCH and / or the reception of the SPS PDSCH is set based on the TB benchmark or the CBG benchmark. According to this embodiment, in collaboration with the base station, it is possible to control the setting based on the TB benchmark or the CBG benchmark.

[0624] In one embodiment, the control unit may control, based on high-level parameters and / or activation of the format of DCI (Downlink Control Information) or DCI field, whether the transmission of the CG PUSCH and / or the reception of the SPS PDSCH is set based on the TB benchmark or the CBG benchmark. According to this embodiment, in collaboration with the base station, it is possible to control the setting based on the TB benchmark or the CBG benchmark.

[0625] In one embodiment, the control unit may dynamically / adaptively update the set TB benchmark or the CBG benchmark. According to this embodiment, when either CBG-based transmission or TB-based transmission is applied in SPS PDSCH / CG PUSCH, their dynamic / adaptive updates can be performed.

[0626] In addition, according to one embodiment of the present disclosure, a base station is provided, comprising: a control unit, which sets: whether the transmission of CG PUSCH (Configured Grant Physical Uplink Schered Channel) and / or the reception of SPS PDSCH (Semi-Persistent Scheduling Downlink Shared Channel) is performed based on a TB (Transport Block) basis or a CBG (Code Block Group) basis; and a sending unit, which notifies information indicating the settings.

[0627] According to the above structure, CBG-based transmission can also be supported in SPS PDSCH / CG PUSCH as semi-static scheduling, so the retransmission frequency can be reduced, low delay can be achieved, transmission efficiency can be improved, and reliability can be ensured.

[0628] In addition, according to one embodiment of the present disclosure, a wireless communication method is provided, in which a terminal that sends and receives extended reality (Extended Reality (XR)) data performs the following processing: setting the sending of CG PUSCH (Configured Grant Physical Uplink Schered Channel) and / or the receiving of SPS PDSCH (Semi-Persistent Scheduling Downlink Shared Channel) to be based on a TB (Transport Block) basis or a CBG (Code Block Group) basis; and based on the setting, sending the CG PUSCH and / or receiving the SPS PDSCH.

[0629] According to the above structure, CBG-based transmission can also be supported in SPS PDSCH / CG PUSCH as semi-static scheduling, so the retransmission frequency can be reduced, low delay can be achieved, transmission efficiency can be improved, and reliability can be ensured.

[0630] In addition, according to one embodiment of the present invention, a terminal is provided, comprising: a control unit, which controls: whether the sending of CG PUSCH (Configured Grant Physical Uplink Schered Channel) and / or the reception of SPS PDSCH (Semi-Persistent Scheduling Downlink Shared Channel) is set as a single codeword or a double codeword; and a sending and receiving unit, which sends the CG PUSCH and / or receives the SPS PDSCH based on the setting of the control unit.

[0631] According to the above structure, CBG-based transmission can also be supported in SPS PDSCH / CG PUSCH as semi-static scheduling, so the retransmission frequency can be reduced, low delay can be achieved, transmission efficiency can be improved, and reliability can be ensured.

[0632] In one embodiment, the control unit may also control, based on high-level parameters, whether the transmission of the CG PUSCH and / or the reception of the SPS PDSCH is performed with a single codeword or with a double codeword. According to this embodiment, in collaboration with the base station, it is possible to control the setting of whether to perform the setting with a single codeword or with a CBG benchmark.

[0633] In one embodiment, the control unit may control, based on high-level parameters and / or activation of the format of DCI (Downlink Control Information) or DCI field, whether the transmission of the CG PUSCH and / or the reception of the SPS PDSCH is performed with a single codeword or with a double codeword. According to this embodiment, in collaboration with the base station, it is possible to control the setting with a single codeword or with a CBG benchmark.

[0634] In one embodiment, the control unit may dynamically / adaptively update the set single codeword or the dual codeword. According to this embodiment, when either single codeword or dual codeword is applied in SPS PDSCH / CG PUSCH, they can be dynamically / adaptively updated.

[0635] In addition, according to one embodiment of the present disclosure, a base station is provided, comprising: a control unit, which sets whether the transmission of CG PUSCH (Configured Grant Physical Uplink Schered Channel) and / or the reception of SPS PDSCH (Semi-Persistent Scheduling Downlink Shared Channel) is performed with a single codeword or a double codeword; and a sending unit, which notifies information indicating the setting.

[0636] According to the above structure, CBG-based transmission can also be supported in SPS PDSCH / CG PUSCH as semi-static scheduling, so the retransmission frequency can be reduced, low delay can be achieved, transmission efficiency can be improved, and reliability can be ensured.

[0637] In addition, according to one embodiment of the present invention, a wireless communication method is provided, in which a terminal that sends and receives extended reality (Extended Reality (XR)) data performs the following processing: setting: for the transmission of CG PUSCH (Configured Grant Physical Uplink Schered Channel) and / or the reception of SPS PDSCH (Semi-Persistent Scheduling Downlink Shared Channel), whether to perform it with a single codeword or a double codeword; and based on the setting, the CG PUSCH is sent and / or the SPS PDSCH is received.

[0638] According to the above structure, CBG-based transmission can also be supported in SPS PDSCH / CG PUSCH as semi-static scheduling, so the retransmission frequency can be reduced, low delay can be achieved, transmission efficiency can be improved, and reliability can be ensured.

[0639] According to one aspect of the present disclosure, a terminal is provided, comprising: a control unit that generates an acknowledgment response to a transmission signal transmitted based on semi-persistent scheduling in a format corresponding to a transmission method of the transmission signal; and a transmission unit that transmits the acknowledgment response.

[0640] According to the above structure, depending on whether the transmission method of the transmission signal transmitted based on semi-static scheduling (e.g., SPS) is a method of applying CBG or a method of applying TB, a confirmation response (e.g., HARQ-ACKCB) can be constructed in an appropriate form, so that HARQ-ACK feedback and retransmission control based on HARQ-ACK can be appropriately performed, thereby improving communication efficiency. In addition, in the above-mentioned embodiment, examples of the transmission method of the transmission signal are a method of applying CBG and a method of applying TB, but the present disclosure is not limited to this.

[0641] In one embodiment, the control unit may also generate the confirmation response in a form that is distinguished according to the cell using the transmission method. According to this embodiment, on the basis of classifying the service cell into a cell that performs TB-based SPS PDSCH transmission and a cell that performs CBG-based SPS PDSCH transmission, the HARQ-ACK CB can be constructed in the form of distinguishing the HARQ-ACK corresponding to each of the classified cells in the HARQ-ACK CB. As a result, HARQ-ACK feedback and HARQ-ACK-based retransmission control can be appropriately performed, thereby improving communication efficiency.

[0642] In one embodiment, the confirmation response may also have the following form, that is, it is divided into a first cell that uses the first transmission method of the transmission method but does not use the second transmission method, and a second cell that does not use the first transmission method but uses the second transmission method. According to this embodiment, on the basis of classifying the service cell into a cell that only performs TB-based SPS PDSCH transmission (for example, a cell that performs TB-based SPS PDSCH transmission but does not perform CBG-based SPS PDSCH transmission) and a cell that only performs CBG-based SPS PDSCH transmission (for example, a cell that does not perform TB-based SPS PDSCH transmission but performs CBG-based SPS PDSCH transmission), it is possible to construct a HARQ-ACK CB in the form of distinguishing the HARQ-ACK corresponding to each of the classified cells in the HARQ-ACK CB. As a result, HARQ-ACK feedback and HARQ-ACK-based retransmission control can be appropriately performed, thereby improving communication efficiency.

[0643] In one embodiment, the confirmation response may also have the following form, that is, it is divided into a third cell that uses the first transmission method but not the second transmission method, and a fourth cell that uses at least one of the first transmission method and the second transmission method. According to this embodiment, on the basis of classifying the service cell into a cell that only performs TB-based SPS PDSCH transmission (for example, a cell that performs TB-based SPS PDSCH transmission but not CBG-based SPS PDSCH transmission) and a cell that is not such a cell (for example, a cell that performs TB-based SPS PDSCH transmission and CBG-based SPS PDSCH transmission), it is possible to construct a HARQ-ACK CB in the form of distinguishing the HARQ-ACK corresponding to each of the classified cells in the HARQ-ACK CB. As a result, HARQ-ACK feedback and HARQ-ACK-based retransmission control can be appropriately performed, thereby improving communication efficiency.

[0644] In addition, according to one embodiment of the present disclosure, a base station is provided, comprising: a receiving unit that receives a confirmation response to a transmission signal sent based on semi-static scheduling, the confirmation response having a form corresponding to the transmission method of the transmission signal; and a control unit that controls retransmission based on the confirmation response.

[0645] According to the above structure, a confirmation response can be constructed in an appropriate form according to whether the transmission method of the transmission signal sent based on semi-static scheduling is the CBG method or the TB method. Therefore, HARQ-ACK feedback and HARQ-ACK-based retransmission control can be appropriately performed, thereby improving communication efficiency.

[0646] In addition, according to one aspect of the present disclosure, there is provided a wireless communication method for generating an acknowledgment response to a transmission signal transmitted based on semi-persistent scheduling in a format corresponding to a transmission method of the transmission signal, and transmitting the acknowledgment response.

[0647] According to the above structure, a confirmation response can be constructed in an appropriate form according to whether the transmission method of the transmission signal sent based on semi-static scheduling is the CBG method or the TB method. Therefore, HARQ-ACK feedback and HARQ-ACK-based retransmission control can be appropriately performed, thereby improving communication efficiency.

[0648] In addition, according to one aspect of the present disclosure, a terminal is provided, comprising: a control unit that generates an acknowledgment response for a transmission signal transmitted based on semi-persistent scheduling in a format corresponding to the number of transport blocks of the transmission signal; and a transmission unit that transmits the acknowledgment response.

[0649] According to the above structure, a confirmation response (e.g., HARQ-ACK CB) can be constructed in an appropriate form according to the number of transport blocks (TB) of the transmission signal sent based on semi-static scheduling (e.g., SPS), so that HARQ-ACK feedback and HARQ-ACK-based retransmission control can be appropriately performed, thereby improving communication efficiency.

[0650] In one embodiment, the control unit may also generate the confirmation response in a form that is distinguished according to the number of cells using the transport block. According to this embodiment, on the basis of classifying the service cells according to the number of TBs used, the HARQ-ACK CB can be constructed in the form of distinguishing the HARQ-ACK corresponding to each of the classified cells in the HARQ-ACK CB. Thus, HARQ-ACK feedback and HARQ-ACK-based retransmission control can be appropriately performed, thereby improving communication efficiency. In addition, in the above-mentioned embodiment, the number of TBs is 1 or 2, but the present disclosure is not limited to this. For example, the number of TBs may also be 3 or more.

[0651] In one embodiment, the confirmation response may also have the following form, namely, a first cell using the number of first transport blocks and a second cell using the number of second transport blocks different from the number of the first transport blocks. According to this embodiment, on the basis of classifying the service cells into cells using one TB (for example, cells performing 1TB-based SPS PDSCH transmission) and cells using two TBs (for example, cells performing 2TB-based SPS PDSCH transmission), it is possible to construct a HARQ-ACK CB in the form of distinguishing the HARQ-ACK corresponding to each of the classified cells in the HARQ-ACK CB. As a result, HARQ-ACK feedback and HARQ-ACK-based retransmission control can be appropriately performed, thereby improving communication efficiency.

[0652] In one embodiment, the size of the confirmation response corresponding to the transmission signal of the number of the first transmission blocks in the transmission method may also be less than the size of the confirmation response corresponding to the transmission signal of the number of the second transmission blocks. According to this embodiment, the serving cell is adjusted so that the size of the HARQ-ACK for the 1TB based SPS PDSCH (1TB based SPS PDSCH) using one TB is smaller than the size of the HARQ-ACK for the 2TB based SPS PDSCH (2TB based SPS PDSCH) using two TBs, so that the HARQ-ACK CB can be constructed according to the size of the data being transmitted in the HARQ-ACK CB. As a result, the feedback of the HARQ-ACK corresponding to the size of the data being transmitted can be appropriately performed, thereby improving the communication efficiency.

[0653] In addition, according to one embodiment of the present disclosure, a base station is provided, comprising: a receiving unit, which receives a confirmation response to a transmission signal sent based on semi-static scheduling, the confirmation response having a form corresponding to the number of transmission blocks of the transmission signal; and a control unit, which controls retransmission based on the confirmation response.

[0654] According to the above structure, the confirmation response can be constructed in an appropriate form according to the number of transport blocks of the transmission signal sent based on semi-static scheduling, so HARQ-ACK feedback and retransmission control based on HARQ-ACK can be appropriately performed, thereby improving communication efficiency.

[0655] In addition, according to one aspect of the present disclosure, there is provided a wireless communication method for generating an acknowledgment response for a transmission signal transmitted based on semi-persistent scheduling in a format corresponding to the number of transport blocks of the transmission signal, and transmitting the acknowledgment response.

[0656] According to the above structure, the confirmation response can be constructed in an appropriate form according to the number of transport blocks of the transmission signal sent based on semi-static scheduling, so HARQ-ACK feedback and retransmission control based on HARQ-ACK can be appropriately performed, thereby improving communication efficiency.

[0657] <Meaning and explanation of terms>

[0658] The terms "determining" and "determining" used in the present disclosure may include various actions. "Determining" and "determining" may include, for example, judging, calculating, computing, processing, deriving, investigating, looking up (for example, searching in a table, database or other data structure), ascertaining, etc. as being considered as "determining" and "determining". In addition, "determining" and "determining" may include receiving (for example, receiving information), transmitting (for example, transmitting information), inputting, outputting, accessing (for example, accessing data in a memory) as being considered as "determining" and "determining". In addition, "determining" and "determining" may include resolving, selecting, choosing, establishing, comparing, etc. as being considered as "determining" and "determining". That is, "judgment" and "decision" can include situations where some actions are considered to be "judged" and "decided". In addition, "judgment (decision)" can also be rewritten as "assuming", "expecting", "considering", etc.

[0659] The terms "connected", "coupled", or all variations thereof, mean all direct or indirect connections or combinations between two or more elements, and can include the situation where there is one or more intermediate elements between two elements that are "connected" or "coupled" to each other. The combination or connection between elements can be physical, logical, or a combination thereof. For example, "connection" can also be rewritten as "access". In the context of use in the present disclosure, it is possible to consider two elements being "connected" or "coupled" to each other using at least one of one or more wires, cables, and printed electrical connections, as well as electromagnetic energy having wavelengths in the wireless frequency domain, microwave region, and light (both visible and invisible) region, as several non-limiting and non-inclusive examples.

[0660] <Reference signal>

[0661] The reference signal may also be referred to as RS (Reference Signal), or may be referred to as a pilot depending on the applied standard.

[0662] <Meaning of “based on”>

[0663] The term “based on” as used in the present disclosure does not mean “based only on” unless otherwise specified. In other words, the term “based on” means both “based only on” and “based at least on”.

[0664] <“First”, “Second”>

[0665] Any reference to an element using the terms "first", "second", etc. used in this disclosure does not fully define the amount or order of these elements. These terms can be used in this disclosure as a convenient method to distinguish between two or more elements. Therefore, reference to the first and second elements does not mean that only two elements can be used or that the first element must take precedence over the second element in some form.

[0666] <Unit>

[0667] The “unit” in the configuration of each of the above-mentioned devices may be replaced with a “section”, “circuit”, “device” or the like.

[0668] <Open Type>

[0669] In the present disclosure, when the terms "include", "including", and variations thereof are used, these terms, like the term "comprising", have an inclusive meaning. Furthermore, the term "or" used in the present disclosure does not mean an exclusive OR.

[0670] <Time units such as TTI, frequency units such as RB, and radio frame structure>

[0671] A radio frame may also be composed of one or more frames in the time domain. One or more frames in the time domain may also be referred to as subframes. Further, a subframe may also be composed of one or more time slots in the time domain. A subframe may also be a fixed time length (e.g., 1 ms) that is not dependent on a parameter set (numerology).

[0672] The parameter set may also be a communication parameter applied in at least one of the transmission and reception of a certain signal or channel. For example, the parameter set may also represent at least one of subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), the number of symbols per TTI, wireless frame structure, specific filter processing performed by the transmitter and receiver in the frequency domain, specific windowing processing performed by the transmitter and receiver in the time domain, etc.

[0673] A time slot may also be composed of one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing)) symbols, SC-FDMA (Single Carrier Frequency Division Multiple Access)) symbols, etc.) in the time domain. A time slot may also be a time unit based on a parameter set.

[0674] A time slot may also include multiple mini-slots. Each mini-slot may also be composed of one or more symbols in the time domain. In addition, a mini-slot may also be referred to as a sub-slot. A mini-slot may also be composed of fewer symbols than a time slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a mini-slot may also be referred to as a PDSCH (or PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot may also be referred to as a PDSCH (or PUSCH) mapping type B.

[0675] 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 may also be referred to by other corresponding names.

[0676] For example, a subframe may also be referred to as a transmission time interval (TTI), a plurality of consecutive subframes may also be referred to as a TTI, and a time slot or a mini time slot may also be referred to as a TTI. That is, at least one of a subframe and a TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (e.g., 1-13 symbols), or a period longer than 1 ms. In addition, a unit representing a TTI may also be referred to as a time slot, a mini time slot, etc. instead of a subframe.

[0677] Here, TTI refers to, for example, the minimum time unit for scheduling in wireless communication. For example, in the LTE system, the base station schedules each user terminal to allocate wireless resources (frequency bandwidth, transmission power, etc. that can be used in each user terminal) in TTI units. In addition, the definition of TTI is not limited to this.

[0678] TTI can also be a transmission time unit for a data packet (transport block), code block, code word, etc. that has been channel-coded, and can also be a processing unit for scheduling, link adaptation, etc. In addition, when TTI is given, the time interval (e.g., the number of symbols) to which a transport block, code block, code word, etc. is actually mapped can also be shorter than the TTI.

[0679] In addition, when a time slot or a mini time slot is called TTI, more than one TTI (i.e., more than one time slot or more than one mini time slot) can also be the minimum time unit of scheduling. In addition, the number of time slots (number of mini time slots) constituting the minimum time unit of scheduling can also be controlled.

[0680] A TTI having a time length of 1 ms may also be referred to as a normal TTI (TTI in LTE Rel.8-12), a standard TTI, a long TTI, a normal subframe, a standard subframe, a long subframe, a time slot, etc. A TTI shorter than a normal TTI may also be referred to as a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a mini time slot, a sub time slot, a time slot, etc.

[0681] In addition, a long TTI (e.g., normal TTI, subframe, etc.) can also be rewritten as a TTI with a time length exceeding 1 ms, and a short TTI (e.g., shortened TTI, etc.) can also be rewritten as a TTI with a TTI length shorter than that of the long TTI and longer than 1 ms.

[0682] A resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or more consecutive subcarriers (subcarriers) in the frequency domain. The number of subcarriers included in an RB may also be the same regardless of the parameter set, for example, 12. The number of subcarriers included in an RB may also be determined based on the parameter set.

[0683] In addition, the time domain of an RB may also include one or more symbols, and may also be the length of a time slot, a mini-time slot, a subframe, or a TTI. A TTI, a subframe, etc. may also be composed of one or more resource blocks, respectively.

[0684] In addition, one or more RBs may also be referred to as a physical resource block (PRB: Physical RB), a sub-carrier group (SCG: Sub-Carrier Group), a resource element group (REG: Resource Element Group), a PRB pair, an RB pair, etc.

[0685] In addition, a resource block may be composed of one or more resource elements (REs). For example, one RE may be a radio resource region of one subcarrier and one symbol.

[0686] A bandwidth part (BWP) (also referred to as a partial bandwidth, etc.) may also represent a subset of contiguous common RBs (common resource blocks) for a parameter set in a certain carrier. Here, the common RBs may also be identified by the index of the RBs based on the common reference point of the carrier. PRBs may also be defined in a BWP and numbered within the BWP.

[0687] The BWP may include a BWP for UL (UL BWP) and a BWP for DL ​​(DL BWP). One or more BWPs may be configured for a UE in one carrier.

[0688] At least one of the set BWPs may be activated, and the UE may not assume that it will transmit or receive a specific signal / channel other than the activated BWP. In addition, "cell", "carrier", etc. in the present disclosure may also be rewritten as "BWP".

[0689] The above structures of radio frames, subframes, time slots, mini-time slots, and symbols are merely examples. For example, the number of subframes included in a radio frame, the number of time slots in each subframe or radio frame, the number of mini-time slots included in a time slot, the number of symbols and RBs included in a time slot or mini-time slot, the number of subcarriers included in an RB, the number of symbols in a TTI, the symbol length, and the cyclic prefix (CP) length can be changed in various ways.

[0690] <Maximum transmission power>

[0691] The “maximum transmit power” recorded in the present disclosure may refer to the maximum value of the transmit power, the nominal maximum transmit power (the nominal UE maximum transmit power), or the rated maximum transmit power (the rated UE maximum transmit power).

[0692] <Article>

[0693] In the present disclosure, when an article is added by translation like a, an, and the in English, for example, the present disclosure may also include a case where the noun following the article is in plural form.

[0694] <“Different”>

[0695] In the present disclosure, the term "A is different from B" may also mean "A and B are different from each other". In addition, the term may also mean "A and B are different from C, respectively". The terms "separate" and "combined" may also be interpreted in the same way as "different".

[0696] Industrial Applicability

[0697] The present disclosure is useful for wireless communication systems.

[0698] Description of symbols

[0699] 10 base station; 20 terminal; 101, 202 sending unit; 102, 201 receiving unit; 103, 203 control unit; 1001 processor; 1002 memory; 1003 storage; 1004 communication device; 1005 input device; 1006 output device.

Claims

1. A terminal comprising: a control unit for controlling: whether to set a transmission of a CG PUSCH and / or a reception of a SPS PDSCH as a single codeword or a dual codeword; and The transmitting and receiving unit transmits the CG PUSCH and / or receives the SPS PDSCH based on the setting of the control unit.

2. The terminal according to claim 1, wherein: The control unit controls, based on a high-layer parameter, whether the transmission of the CG PUSCH and / or the reception of the SPS PDSCH is performed with the single codeword or with the dual codeword.

3. The terminal according to claim 1, wherein: The control unit controls, based on high-level parameters and / or activation of downlink control information, i.e., activation of the format of DCI or DCI field, whether the transmission of the CG PUSCH and / or the reception of the SPS PDSCH is performed with the single codeword or the dual codeword.

4. The terminal according to claim 1, wherein: The control unit dynamically / adaptively updates the set single codeword or the double codeword.

5. A base station, comprising: A control unit configured to set whether to transmit a CG PUSCH and / or receive a SPS PDSCH in a single codeword or a dual codeword; and The sending unit notifies information indicating the setting.

6. A wireless communication method, The terminal that sends and receives the data of extended reality (XR) performs the following processing: Setting: whether to set the transmission of the CG PUSCH, a physical uplink shared channel, and / or the reception of the SPS PDSCH, a semi-persistently scheduled downlink shared channel, to be performed with a single codeword or a dual codeword; and Based on the settings, the CG PUSCH is sent and / or the SPS PDSCH is received.

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