Terminal device, base station device, and method

Abstract

A terminal device includes a receiving unit for receiving a PDCCH having a first DCI format; and a transmitting unit for transmitting a PUCCH and a PUSCH including a UCI. The transmitting unit multiplexes the UCI to the first PUSCH when the PUCCH collides with a plurality of PUSCHs, including a first PUSCH that is dynamically scheduled through the first DCI format and a second PUSCH for a CSI that is transmitted semi-permanently, and multiplexes the UCI to the third PUSCH when the PUCCH collides with a third PUSCH for a CSI that is transmitted non-periodically.

Description

Technology Field

[0001] The present invention relates to a terminal device, a base station device, and methods thereof. The present invention claims the benefit and priority thereto of Japanese Patent Application No. 2018-174702 ("'702 Application") filed September 19, 2018. The contents(s) of the '702 Application are fully incorporated herein by reference for all purposes. Background Technology

[0002] In the 3rd Generation Partnership Project (3GPP), radio access methods and radio networks for cellular mobile communication (hereinafter referred to as "Long Term Evolution (LTE)" or "EUTRA (Evolved Universal Terrestrial Radio Access)") are being considered. In LTE, base station devices are also called eNodeB (evolved NodeB), and terminal devices are also called UE (User Equipment). LTE is a cellular communication system that uses multiple coverage areas of base station devices configured within a cell. A single base station device can also manage multiple serving cells.

[0003] For 3GPP, a next-generation standard (NR: New Radio) is being studied to be proposed to IMT-2020, the standard for next-generation mobile communication systems specified by the ITU (International Telecommunication Union) (Non-patent Literature 1). In a single technical framework, NR is required to satisfy the requirements of the following three hypothetical scenarios: eMBB (enhanced Mobile Broadband), mMTC (massive Machine Type Communication), and URLLC (Ultra Reliable and Low Latency Communication). Prior art literature

[0004] Non-patent Document 1: “New SID proposal: Study on New Radio Access Technology,” RP-160671, NTT docomo, 3GPP TSG RAN Meeting #71, Goteborg, Sweden, 7th-10th March, 2016. The problem to be solved

[0005] The present invention provides a terminal device that efficiently performs communication, a communication method used in the terminal device, a base station device that efficiently performs communication, and a communication method used in the base station device. means of solving the problem

[0006] (1) A first aspect of the present invention is a terminal device, and the terminal device comprises: a receiving unit for receiving a physical downlink control channel (PDCCH) having a first downlink control information (DCI) format; and a transmitting unit for transmitting a physical uplink control channel (PUCCH) and a physical downlink shared channel (PUSCH) including uplink control information (UCI). The transmitting unit multiplexes the UCI to the first PUSCH when the PUCCH collides with a plurality of PUSCHs including a first PUSCH that is dynamically scheduled through the first DCI format and a second PUSCH for a CSI that is semi-permanently transmitted, and multiplexes the UCI to the third PUSCH when the PUCCH collides with a third PUSCH for a CSI that is transmitted non-periodically.

[0007] (2) A second aspect of the present invention is a base station device, and the base station device includes a transmitting unit for transmitting a physical uplink control channel (PDCCH) having a first downlink control information (DCI) format; and a receiving unit for receiving a physical uplink control channel (PUCCH) and a physical downlink shared channel (PUSCH) including uplink control information (UCI). The receiving unit multiplexes the UCI to the first PUSCH when the PUCCH collides with a plurality of PUSCHs including a first PUSCH that is dynamically scheduled through the first DCI format and a second PUSCH for a CSI that is transmitted semi-permanently, and multiplexes the UCI to the third PUSCH when the PUCCH collides with a third PUSCH for a CSI that is transmitted non-periodically.

[0008] (3) A third aspect of the present invention is a communication method used in a terminal device, and the communication method comprises: receiving a physical downlink control channel (PDCCH) having a first downlink control information (DCI) format; and when a physical uplink control channel (PUCCH) collides with a plurality of PUSCHs including a first physical downlink sharing channel (PUSCH) that is dynamically scheduled through the first DCI format and a second PUSCH for channel state information (CSI) that is transmitted semi-permanently, multiplexing the uplink control information (UCI) to the first PUSCH; and when a PUCCH collides with a third PUSCH for a CSI that is transmitted non-periodically, multiplexing the UCI to the third PUSCH.

[0009] (4) A fourth aspect of the present invention is a communication method used in a base station device, and the communication method comprises: transmitting a physical uplink control channel (PDCCH) having a first downlink control information (DCI) format; and when the physical uplink control channel (PUCCH) collides with a plurality of PUSCHs including a first PUSCH that is dynamically scheduled through the first DCI format and a second PUSCH for channel state information (CSI) that is transmitted semi-permanently, the step of multiplexing the uplink control information (UCI) to the first PUSCH; and when the PUCCH collides with a third PUSCH for CSI that is transmitted non-periodically, the step of multiplexing the UCI to the third PUSCH. Effects of the invention

[0010] According to the present invention, a terminal device can perform communication efficiently. Additionally, a base station device can perform communication efficiently. Brief explanation of the drawing

[0011] FIG. 1 is a schematic diagram of a wireless communication system according to an aspect of the present invention. FIG. 2 is N according to an aspect of the present invention slot symb This is an example illustrating the relationship between the subcarrier spacing configuration μ, the slot configuration, and the cyclic prefix (CP) configuration. FIG. 3 is a schematic diagram of an example of a resource grid of a subframe according to an aspect of the present invention. FIG. 4 is a schematic block diagram of the configuration of a terminal device (1) according to an aspect of the present invention. FIG. 5 is a schematic block diagram of the configuration of a base station device (3) according to an aspect of the present invention. FIG. 6 is a schematic diagram illustrating the selection of a PUSCH for transmitting a UCI when a PUCCH containing a UCI collides with one or more PUSCHs in the time domain, according to an aspect of the present invention. Specific details for implementing the invention

[0012] Embodiments of the present invention will be described below.

[0013] A parameter or information representing one or more values ​​may also include at least one parameter or information representing one or more values. An upper-level parameter may be a single upper-level parameter. An upper-level parameter may be an information element (IE) comprising multiple parameters.

[0014] FIG. 1 is a schematic diagram of a wireless communication system according to an aspect of the present invention. In FIG. 1, the wireless communication system includes terminal devices (1A to 1C) and a base station device (3). Hereinafter, the terminal devices (1A to 1C) are also referred to as terminal device (1).

[0015] The base station device (3) may include one or both of a Master Cell Group (MCG) and a Secondary Cell Group (SCG). The MCG is a group of serving cells including at least a Primary Cell (PCell). The SCG is a group of serving cells including at least a Primary Secondary Cell (PSCell). A PCell may be a serving cell provided based on an initial connection. The MCG may include one or more Secondary Cells (SCells). The SCG may include one or more SCells. A serving cell identity is a short identity for identifying a serving cell. The serving cell identity may be provided by an upper layer parameter.

[0016] Below, the frame composition will be explained.

[0017] In a wireless communication system according to an aspect of the present invention, at least Orthogonal Frequency Division Multiplex (OFDM) is used. An OFDM symbol is a unit of the OFDM time domain. An OFDM symbol includes at least one subcarrier. An OFDM symbol can also be converted into a time-continuous signal during baseband signal generation.

[0018] Subcarrier spacing (SCS) is the subcarrier spacing Δf = 2 μ · It can be obtained by 15 kHz. For example, the subcarrier spacing configuration μ can be set to any one of 0, 1, 2, 3, 4, and / or 5. The subcarrier spacing configuration μ can also be provided by an upper layer parameter for a given BandWidth Part (BWP).

[0019] In a wireless communication system according to an aspect of the present invention, time unit T C is used to represent the length in the time domain. Time unit T C is T C = 1 / (Δf max · N f It can be obtained by ). Δf max Δf may be the maximum value of the subcarrier spacing supported in a wireless communication system according to an aspect of the present invention. max is Δf max = It could be 480 kHz. N f is N f = can be 4096. The constant κ is κ = Δf max · N f / (Δf ref N f, ref ) = 64. Δf ref It can be 15 kHz. N f, ref It could be 2048.

[0020] The constant κ may be a value representing the relationship between the reference subcarrier interval and Tc. The constant κ may also be used for the subframe length. The number of slots included in the subframe can be obtained based at least on the constant κ. Δf ref is the standard subcarrier interval, and N f, ref is a value corresponding to the reference subcarrier interval.

[0021] Downlink transmission and / or uplink transmission consists of 10ms frame(s). A frame is configured to include 10 subframes. The length of a subframe is 1ms. The frame length can be obtained regardless of the subcarrier interval Δf. In other words, the frame configuration can be obtained regardless of μ. The subframe length can be obtained regardless of the subcarrier interval Δf. In other words, the subframe configuration can be obtained regardless of μ.

[0022] The number and index of slots included in a subframe can be obtained for a configuration μ of a predetermined subcarrier interval. For example, a first slot number n μ 0 to N within the subframe subframe, μ slot It can be obtained in ascending order within the range of -1. The number and index of slots included in the frame can be obtained for the subcarrier interval configuration μ. For example, the second slot number n μ s, f is 0 to N within the frame frame, μ slot Can be obtained in ascending order within the range of -1. Consecutive N slot symb N OFDM symbols can be included in a single slot. slot symbIt may be obtained based on at least some or all of the slot configuration and / or periodic prefix (CP) configuration. The slot configuration may be obtained by at least the upper layer parameter tdd-UL-DL-ConfigurationCommon. The CP configuration may be obtained based on at least the upper layer parameter. The CP configuration may be obtained based on at least dedicated Radio Resource Control (RRC) signaling. The first slot number and the second slot number may also be referred to as slot numbers (slot indexes).

[0023] FIG. 2 is N according to an aspect of the present invention slot symb This is an example illustrating the relationship between the subcarrier spacing configuration μ, the slot configuration, and the CP configuration. In FIG. 2a, when the slot configuration is 0, the subcarrier spacing configuration μ is 2, and the CP configuration is normal CP, N slot symb = 14 and N frame, μ slot = 40 and N subframe, μ slot = 4. Additionally, in FIG. 2b, when the slot configuration is 0, the subcarrier spacing configuration μ is 2, and the CP configuration is an extended CP, N slot symb = 12 and N frame, μ slot = 40 and N subframe, μ slot = 4. When the slot configuration is 0, N slot symb is N when the slot configuration is 1. slot symb It can correspond to twice the amount.

[0024] Physical resources will be described below.

[0025] An antenna port can be defined by the fact that the channel through which a symbol is transmitted from one antenna port can be estimated according to the channel through which other symbols are transmitted from the same antenna port. If the large-scale properties of the channel through which a symbol is transmitted from one antenna port can be estimated according to the channel through which a symbol is transmitted from another antenna port, the two antenna ports are referred to as Quasi Co-Located (QCL). The large-scale properties may include at least the long interval properties of the channel. The large-scale properties may also include delay spread, Doppler spread, Doppler shift, average gain, average delay, and some or all of the beam parameters spatialDxparameters. Regarding the beam parameters, the fact that the first antenna port and the second antenna port are QCL may also indicate that the receiving beam assumed by the receiving side corresponding to the first antenna port and the receiving beam assumed by the receiving side corresponding to the second antenna port are identical. Regarding beam parameters, the fact that the first antenna port and the second antenna port are QCL may also indicate that the transmission beam assumed by the receiving side corresponding to the first antenna port and the transmission beam assumed by the receiving side corresponding to the second antenna port are identical. The terminal device (1) may assume that the two antenna ports are QCL if the large-scale properties of the channel in which a symbol is transmitted from one antenna port can be estimated according to the channel in which a symbol is transmitted from another antenna port. The fact that the two antenna ports are QCL may also indicate that the two antenna ports are assumed to be QCL.

[0026] For each of the subcarrier spacing configuration and carrier configuration, N μ RB, Х N RB sc N subcarriers and N (μ) symb N subframe, μ symbA resource grid of N OFDM symbols is obtained. μ RB, x can represent the number of resource blocks acquired for a subcarrier spacing configuration μ of carrier x. N μ RB, x ≠ μ RB is N μ RB, DL and / or N μ RB, UL It is a name that includes. N RB sc may also represent the number of subcarriers included in a single resource block. At least one resource grid may be obtained for each antenna port p and / or each subcarrier spacing configuration μ and / or each transmission direction configuration. The transmission direction includes at least a downlink (DL) and an uplink (UL). Hereinafter, part or all of the parameter set including at least an antenna port p, a subcarrier spacing configuration μ, and a transmission direction configuration may also be referred to as a first radio parameter set. In other words, one resource grid may be obtained for each first radio parameter set.

[0027] In the downlink, the carrier contained in the serving cell is referred to as the downlink carrier (or downlink component carrier). In the uplink, the carrier contained in the serving cell is referred to as the uplink carrier (or uplink component carrier). The downlink component carrier and the uplink component carrier are collectively referred to as component carriers (or carriers).

[0028] Each element within the resource grid acquired for each first set of radio parameters is referred to as a resource element. The resource element is a frequency domain index k sc and time domain index l sym It can be determined by. For a given first set of radio parameters, the resource element is the frequency domain index k sc and time domain index l sym It is determined by. Frequency domain index k sc and time domain index l sym The resource element determined by is the resource element (k sc , l sym It is referred to as ). Frequency domain index k sc is 0 to N μ RB N RB sc Represents an arbitrary value of -1. N μ RB can be the number of resource blocks acquired for a subcarrier interval configuration μ. N RB sc is the number of subcarriers included in the resource block, and N RB sc = 12. Frequency domain index k sc is the subcarrier index k sc It can correspond to. Time domain index l sym is the OFDM symbol index l sym It can respond to.

[0029] FIG. 3 is a schematic diagram of an example of a resource grid of a subframe according to an aspect of the present invention. In the resource grid of FIG. 3, the horizontal axis is the time domain index l sym And, the vertical axis is the frequency domain index k sc is. In one subframe, the frequency domain resource grid is N μ RB N RB scIt includes subcarriers. In one subframe, the time domain resource grid is 14 · 2 μ It can contain N OFDM symbols. One resource block is N RB sc It consists of several subcarriers. A time domain resource block can correspond to one OFDM symbol. A time domain resource block can correspond to 14 OFDM symbols. A time domain resource block can correspond to one or more slots. A time domain resource block can correspond to one subframe.

[0030] A terminal device (1) may be instructed to perform transmission and reception using only a subset of the resource grid. A subset of the resource grid may also be referred to as a BWP, which may be obtained based on at least some or all of the upper layer parameters and / or DCI. A BWP is also referred to as a BP (bandwidth part). In other words, the terminal device (1) may not be instructed to perform transmission and reception using all sets of the resource grid. In other words, the terminal device (1) may be instructed to perform transmission and reception using a portion of the frequency resources of the resource grid. A single BWP may be composed of multiple resource blocks in the frequency domain. A single BWP may be composed of multiple consecutive resource blocks in the frequency domain. A BWP configured for a downlink carrier is also referred to as a downlink BWP. A BWP configured for an uplink carrier is also referred to as an uplink BWP.

[0031] One or more downlink BWPs may be configured for a terminal device (1). The terminal device (1) may attempt to receive a physical channel (e.g., PDCCH, Physical Downlink Shared Channel (PDSCH), Synchronization Signal (SS) / Physical Broadcast Channel (PBCH), etc.) from one of the one or more downlink BWPs. One downlink BWP is also referred to as an active downlink BWP.

[0032] One or more uplink BWPs may be configured for the terminal device (1). The terminal device (1) may attempt to transmit a physical channel (e.g., PUCCH, PUSCH, Physical Random Access Channel (PRACH), etc.) from one of the one or more uplink BWPs. One uplink BWP is also referred to as an active uplink BWP.

[0033] For each serving cell, a set of downlink BWPs can be configured. A set of downlink BWPs may include one or more downlink BWPs. For each serving cell, a set of uplink BWPs can be configured. A set of uplink BWPs may include one or more uplink BWPs.

[0034] Upper layer parameters are parameters included in the upper layer signal. The upper layer signal may be a Radio Resource Control (RRC) signaling or a Medium Access Control Element (MAC CE). Here, the upper layer signal may be an RRC layer signal or a MAC layer signal.

[0035] The upper layer signal may be a common RRC signaling. The common RRC signaling may include at least some or all of the following features C1 to C3.

[0036] Feature C1) Mapped to a Broadcast Control Channel (BCCH) logical channel or a Common Control Channel (CCCH) logical channel

[0037] Feature C2) Includes at least the radioResourceConfigCommon information element

[0038] Feature C3) Mapped to PBCH

[0039] The radioResourceConfigCommon information element may include information representing a configuration commonly used in serving cells. The configuration commonly used in serving cells may include at least the configuration of PRACH. The configuration of PRACH may represent at least one random access preamble index. The configuration of PRACH may represent at least the time / frequency resources of PRACH.

[0040] The upper layer signal may be a dedicated RRC signaling. The dedicated RRC signaling may include at least some or all of the following features D1 and D2.

[0041] Feature D1) Mapped to a Dedicated Control Channel (DCCH) logic channel

[0042] Feature D2) Includes at least the radioResourceConfigDedicated information element

[0043] The radioResourceConfigDedicated information element may include information indicating a configuration specific to at least the terminal device (1). The radioResourceConfigDedicated information element may include information indicating a BWP configuration. The configuration of the BWP may indicate at least the frequency resources of the BWP.

[0044] For example, the MIB, first system information, and second system information may be included in the common RRC signaling. Additionally, upper-level messages mapped to a DCCH logical channel and containing at least radioResourceConfigCommon may be included in the common RRC signaling. Additionally, upper-level messages mapped to a DCCH logical channel and not containing the radioResourceConfigCommon information element may also be included in the dedicated RRC signaling. Additionally, upper-level messages mapped to a DCCH logical channel and containing at least the radioResourceConfigDedicated information element may also be included in the dedicated RRC signaling.

[0045] The first system information may represent at least the time index of a synchronization signal (SS) block. The SS block is also referred to as an SS / PBCH block. The SS / PBCH block is referred to as SS / PBCH. The first system information may include at least information related to a PRACH resource. The first system information may include at least information related to the configuration of an initial connection. The second system information may be system information other than the first system information.

[0046] The radioResourceConfigDedicated information element may include information related to at least the PRACH resource. The radioResourceConfigDedicated information element may include information related to at least the configuration of the initial connection.

[0047] In the following, physical channels and physical signals according to various embodiments of the present invention will be described.

[0048] An uplink physical channel may correspond to a set of resource elements carrying information generated in an upper layer. An uplink physical channel is a physical channel used in an uplink carrier. In a wireless communication system according to one aspect of the present invention, at least some or all of the following uplink physical channels are used.

[0049] · Physical Uplink Control Channel (PUCCH)

[0050] · Physical Uplink Sharing Channel (PUSCH)

[0051] · Physical Random Access Channel (PRACH)

[0052] PUCCH can be used to transmit uplink control information (UCI). Uplink control information includes some or all of the channel state information (CSI), scheduling request (SR), and hybrid automatic repeat request ACKnowledgement (HARQ-ACK) corresponding to transport blocks (transport block (TB), Medium Access Control Protocol Data Unit (MAC PDU), Downlink-Shared Channel (DL-SCH), and Physical Downlink-Shared Channel (PDSCH)).

[0053] HARQ-ACK may include at least one HARQ-ACK bit corresponding to at least one transmission block. The HARQ-ACK bit may represent an ACK (acknowledgement) or NACK (negative-acknowledgement) corresponding to one or more transmission blocks. HARQ-ACK may include at least one HARQ-ACK codebook containing one or more HARQ-ACK bits. That the HARQ-ACK bit corresponds to one or more transmission blocks may indicate that the HARQ-ACK bit corresponds to a PDSCH containing one or more transmission blocks.

[0054] The HARQ-ACK bit can represent an ACK or NACK corresponding to a Code Block Group (CBG) included in a transmission block. The HARQ-ACK is also referred to as HARQ feedback, HARQ information, or HARQ control information.

[0055] A scheduling request (SR) may be used to request PUSCH resources for at least an initial transmission. A scheduling request bit may be used to indicate either a positive SR or a negative SR. That the scheduling request bit indicates a positive SR may also be referred to as "transmitting a positive SR." A positive SR may indicate that the terminal device (1) requests PUSCH resources for an initial transmission. A positive SR may indicate that the scheduling request is triggered by upper layers. A positive SR may be transmitted when an upper layer indicates that it is transmitting a scheduling request. That the scheduling request bit indicates a negative SR may also be referred to as "transmitting a negative SR." A negative SR may indicate that the terminal device (1) does not request PUSCH resources for an initial transmission. A negative SR can indicate that a scheduling request is not triggered by upper layers. A negative SR can be transmitted when an upper layer does not indicate that it is sending a scheduling request.

[0056] Channel state information may include at least some or all of the channel quality indicator (CQI), precoder matrix indicator (PMI), and rank indicator (RI). CQI is an index related to channel quality (e.g., transmit strength), and PMI is an index representing the precoder. RI is an index representing the transmit rank (or the number of transmit layers).

[0057] PUCCH supports PUCCH formats (PUCCH format 0 through PUCCH format 4). PUCCH formats can be mapped to PUCCH and transmitted. PUCCH formats can be transmitted together with PUCCH. Transmission of PUCCH formats can also indicate transmission of PUCCH.

[0058] PUSCH is used to transmit at least a transmission block (TB, MAC PDU, Uplink-Shared Channel (UL-SCH), PUSCH). PUSCH may also be used to transmit at least some or all of the transmission blocks, HARQ-ACK, channel state information, and scheduling requests. PUSCH is used to transmit at least a random access message 3.

[0059] PRACH is used to transmit at least a random access preamble (random access message 1). PRACH is used for at least some or all of the initial connection establishment procedure, handover procedure, connection re-establishment procedure, synchronization (timing adjustment) for PUSCH transmission, and resource requests for PUSCH. The random access preamble may be used to notify the base station device (3) of an index (random access preamble index) obtained from the upper layer of the terminal device (1).

[0060] In FIG. 1, the following uplink physical signals are used in uplink wireless communication. The uplink physical signals are not used to transmit information output from the upper layer, but are used by the physical layer.

[0061] · Uplink Demodulation Reference Signal (UL DMRS)

[0062] Sounding Reference Signal (SRS)

[0063] · Uplink Phase Tracking Reference Signal (UL PTRS)

[0064] UL DMRS is related to the transmission of PUSCH and / or PUCCH. UL DMRS is multiplexed into PUSCH or PUCCH. A base station device (3) may use UL DMRS to perform PUSCH or PUCCH channel correction. Hereinafter, transmitting PUSCH and UL DMRS related to PUSCH together is simply referred to as transmitting PUSCH. Hereinafter, transmitting PUCCH and UL DMRS related to PUCCH together is simply referred to as transmitting PUCCH. UL DMRS related to PUSCH is also referred to as UL DMRS for PUSCH. UL DMRS related to PUCCH is also referred to as UL DMRS for PUCCH.

[0065] The SRS may not be involved in PUSCH or PUCCH transmission. The base station device (3) may use the SRS to measure channel conditions. The SRS may be transmitted in the last OFDM symbol of the subframe or in an OFDM symbol that is a predetermined number of OFDM symbols from the last OFDM symbol.

[0066] UL PTRS may be a reference signal used for phase tracking at least. UL PTRS may be associated with a UL DMRS group comprising an antenna port used in at least one UL DMRS. The relationship between UL PTRS and the UL DMRS group may indicate that some or all of the antenna ports of at least the UL PTRS and the antenna ports included in the UL DMRS group are QCLs. The UL DMRS group may be identified based on the antenna port having the minimum index in the UL DMRS included in the UL DMRS group. UL PTRS may be mapped to the antenna port having the minimum index among one or more antenna ports to which a single codeword is mapped. UL PTRS may be mapped to the first layer when a single codeword is mapped to at least the first layer and the second layer. UL PTRS may not be mapped to the second layer. The index of the antenna port to which the UL PTRS is mapped may be obtained based on at least downlink control information.

[0067] In FIG. 1, the following downlink physical channels are used for downlink wireless communication from a base station device (3) to a terminal device (1). The downlink physical channels are used by the physical layer to transmit information output from the upper layer.

[0068] · Physical Broadcast Channel (PBCH)

[0069] · Physical Downlink Control Channel (PDCCH)

[0070] · Physical Downlink Sharing Channel (PDSCH)

[0071] The PBCH is used to transmit at least a Master Information Block (MIB, Broadcast Channel (BCH)). The PBCH may be transmitted based on a predetermined transmission interval. The PBCH may be transmitted at an 80ms interval. The PBCH may be transmitted at a 160ms interval. The content of the information contained in the PBCH may be updated every 80ms. Part or all of the information contained in the PBCH may also be updated every 160ms. The PBCH may consist of 288 subcarriers. The PBCH may consist of two, three, or four included OFDM symbols. The MIB may contain information related to the identifier (index) of the synchronization signal. The MIB may contain part of information indicating at least a slot number, subframe number, and / or radio frame number for transmitting the PBCH.

[0072] PDCCH is used for transmitting at least downlink control information (DCI). PDCCH may be transmitted including at least downlink control information. PDCCH may include downlink control information. Downlink control information may also be referred to as DCI format. Downlink control information may include at least one of downlink acknowledgment or uplink acknowledgment. The DCI format used for PDSCH scheduling is referred to as downlink DCI format. The DCI format used for PUSCH scheduling is referred to as uplink DCI format. Downlink acknowledgment is also referred to as downlink assignment or downlink assignment.

[0073] In various embodiments of the present invention, unless otherwise specified, the number of resource blocks represents the number of resource blocks in the frequency domain.

[0074] Downlink acknowledgment is used to schedule one PDSCH to at least one serving cell.

[0075] Uplink acknowledgment is used to schedule one PUSCH to at least one serving cell.

[0076] One physical channel can be mapped to one serving cell. One physical channel can be mapped to one BWP configured for one carrier included in one serving cell.

[0077] A terminal device (1) may be composed of one or more control resource sets (CORESET). The terminal device (1) monitors a PDCCH in one or more control resource sets. Here, monitoring a PDCCH in one or more control resource sets may include monitoring one or more PDCCHs corresponding to each of the one or more control resource sets. Additionally, a PDCCH may include one or more PDCCH candidates and / or PDCCH candidate sets. Additionally, monitoring a PDCCH may include monitoring and detecting a PDCCH and / or a DCI format transmitted through a PDCCH.

[0078] A control resource set may represent a time-frequency domain to which one or more PDCCHs can be mapped. A control resource set may be an area where a terminal device (1) monitors the PDCCH. A control resource set may consist of localized resources. A control resource set may also consist of distributed resources.

[0079] In the frequency domain, the unit of mapping for the control resource set may be a resource block. For example, in the frequency domain, the unit of mapping for the control resource set may be six resource blocks. In the time domain, the unit of mapping for the control resource set may be an OFDM symbol. For example, in the time domain, the unit of mapping for the control resource set may be one OFDM symbol.

[0080] The mapping of a control resource set to resource blocks can be obtained based on at least upper-level parameters. Upper-level parameters may include a bitmap for a resource block group (RBG). A resource block group may be obtained as six consecutive resource blocks.

[0081] The number of OFDM symbols constituting the control resource set can be obtained based on at least the upper layer parameters.

[0082] A predetermined set of control resources may be a common set of control resources. The common set of control resources may be a set of control resources configured commonly for a plurality of terminal devices (1). The common set of control resources may be obtained based on at least some or all of the MIB, first system information, second system information, common RRC signaling, and cell ID. For example, the time resources and / or frequency resources of the set of control resources configured to monitor the PDCCH used for scheduling the first system information may be obtained based on at least the MIB.

[0083] A control resource set configured by an MIB is also referred to as CORESET#0. CORESET#0 can be a control resource set with index #0.

[0084] A predetermined control resource set may be a dedicated control resource set. The dedicated control resource set may be a control resource set configured to be used exclusively by the terminal device (1). The dedicated control resource set may be obtained based on at least some or all of the values ​​of the dedicated RRC signaling and C-RNTI.

[0085] A set of PDCCH candidates monitored by the terminal device (1) can be defined in terms of a search area. In other words, a set of PDCCH candidates monitored by the terminal device (1) can be obtained by a search area.

[0086] The search area may consist of one or more PDCCH candidates of one or more included aggregation levels. The aggregation levels of the PDCCH candidates may represent the number of control channel elements (CCEs) that constitute the PDCCH. The PDCCH candidates may be mapped to one or more CCEs.

[0087] The terminal device (1) can monitor at least one search area in a slot where discontinuous reception (DRX) is not configured. The DRX can be acquired based on at least upper-level parameters. The terminal device (1) can monitor at least one set of search areas in slots where the DRX is not configured.

[0088] A set of search areas may include at least one search area.

[0089] Each set of search areas may be associated with at least one set of control resources. Each set of search areas may be included in one set of control resources. For each set of search areas, the index of the set of control resources associated with the set of search areas may be obtained.

[0090] The physical resources of the search area are composed of control channel elements (CCEs). A CCE is composed of a predetermined number of resource element groups (REGs). For example, a CCE can be composed of 6 REGs. A REG can be composed of one OFDM symbol of a Physical Resource Block (PRB). In other words, a REG can be composed of 12 resource elements (REs). A PRB is simply referred to as a Resource Block (RB).

[0091] PDSCH is used to transmit at least a transmission block. PDSCH may be used to transmit at least a random access message 2 (random access response). PDSCH may be used to transmit system information including at least parameters used for initial access.

[0092] In FIG. 1, the following downlink physical signals are used in downlink wireless communication. The downlink physical signals are not used to transmit information output from the upper layer, but are used by the physical layer.

[0093] · Synchronization signal (SS)

[0094] · Downlink DeModulation Reference Signal (DL DMRS)

[0095] · Channel State Information-Reference Signal (CSI-RS)

[0096] · Downlink Phase Tracking Reference Signal (DL PTRS)

[0097] A synchronization signal is used for the terminal device (1) to synchronize in the downlink frequency domain and / or time domain. The synchronization signal includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS).

[0098] The SS block (SS / PBCH block) consists of at least some or all of the PSS, SSS, and PBCH.

[0099] DL DMRS is involved in the transmission of PBCH, PDCCH, and / or PDSCH. DL DMRS is multiplexed to PBCH, PDCCH, and / or PDSCH. A terminal device (1) may use a DL DMRS corresponding to PBCH, PDCCH, or PDSCH to perform channel correction of PBCH, PDCCH, or PDSCH.

[0100] CSI-RS may be a signal used to calculate at least channel state information. The CSI-RS type assumed by the terminal device may be obtained by at least upper-level parameters.

[0101] PTRS may be a signal used for at least phase noise compensation. The PTRS type assumed by the terminal device may be obtained based on at least upper layer parameters and / or DCI.

[0102] A DL PTRS may be associated with a group of DL DMRSs that includes at least one antenna port used in a DL DMRS.

[0103] Downlink physical channels and downlink physical signals are also referred to as downlink signals. Uplink physical channels and uplink physical signals are also referred to as uplink signals. Downlink signals and uplink signals are collectively referred to as physical signals. Downlink signals and uplink signals are also collectively referred to as signals. Downlink physical channels and uplink physical channels are collectively referred to as physical channels. Downlink physical signals and uplink physical signals are collectively referred to as physical signals.

[0104] Broadcast Channel (BCH), Uplink Shared Channel (UL-SCH), and Downlink Shared Channel (DL-SCH) are transport channels. Channels used at the Media Access Control (MAC) layer are referred to as transport channels. The unit of a transport channel used at the MAC layer is also referred to as a transport block (TB) or MAC PDU. At the MAC layer, Hybrid Automatic Repeat Request (HARQ) control is performed for each transport block. A transport block is the unit of data that the MAC layer transmits to the physical layer. At the physical layer, transport blocks are mapped to codewords, and modulation processing is performed for each codeword.

[0105] The base station device (3) and the terminal device (1) exchange (transmit and receive) upper layer signals at the upper layer. For example, the base station device (3) and the terminal device (1) can transmit and receive RRC signaling (RRC message: wireless resource control message, RRC information: wireless resource control information) at the wireless resource control (RRC) layer. Additionally, the base station device (3) and the terminal device (1) can transmit and receive MAC control elements (CE) at the MAC layer. Here, RRC signaling and / or MAC CE are also referred to as upper layer signaling.

[0106] PUSCH and PDSCH may be used to transmit at least RRC signaling and / or MAC CE. Here, the RRC signaling transmitted by PDSCH from the base station device (3) may be common signaling for a plurality of terminal devices (1) within the serving cell. The signaling common to a plurality of terminal devices (1) within the serving cell is referred to as common RRC signaling. The RRC signaling transmitted by PDSCH from the base station device (3) may be signaling dedicated to a specific terminal device (1) (also referred to as dedicated signaling or UE-specific signaling). The signaling dedicated to a terminal device (1) is also referred to as dedicated RRC signaling. Upper layer parameters specific to the serving cell may be transmitted using common signaling for a plurality of terminal devices (1) within the serving cell or dedicated signaling for a specific terminal device (1). UE-specific upper layer parameters may be transmitted to a specific terminal device (1) using dedicated signaling.

[0107] The Broadcast Control Channel (BCCH), Common Control Channel (CCCH), and Dedicated Control Channel (DCCH) are logical channels. For example, the BCCH is an upper-level channel used to transmit MIBs. Additionally, the Common Control Channel (CCCH) is an upper-level channel used to transmit information common to multiple terminal devices (1). Here, the CCCH can be used, for example, for a terminal device (1) that is not connected to the RRC. Additionally, the Dedicated Control Channel (DCCH) is an upper-level channel used to transmit dedicated control information to at least one terminal device (1). Here, the DCCH can be used, for example, for a terminal device (1) connected to the RRC.

[0108] BCCH in a logical channel can be mapped to BCH, DL-SCH, or UL-SCH in a transmission channel. CCCH in a logical channel can be mapped to DL-SCH or UL-SCH in a transmission channel. DCCH in a logical channel can be mapped to DL-SCH or UL-SCH in a transmission channel.

[0109] UL-SCH in the transmission channel can be mapped to PUSCH in the physical channel. DL-SCH in the transmission channel can be mapped to PDSCH in the physical channel. BCH in the transmission channel can be mapped to PBCH in the physical channel.

[0110] Below, an example of the configuration of a terminal device (1) according to one aspect of the present invention will be described.

[0111] FIG. 4 is a schematic block diagram of the configuration of a terminal device (1) according to an aspect of the present invention. As illustrated, the terminal device (1) includes a wireless transmission / reception unit (10) and an upper-level processing unit (14). The wireless transmission / reception unit (10) includes at least some or all of an antenna unit (11), a radio frequency (RF) unit (12), and a baseband unit (13). The upper-level processing unit (14) is configured to include at least some or all of a media access control layer processing unit (15) and a wireless resource control layer processing unit (16). The wireless transmission / reception unit (10) is also referred to as a transmission unit, a reception unit, or a physical layer processing unit.

[0112] The upper layer processing unit (14) outputs uplink data (transmission block) generated by user actions, etc., to the wireless transmission / reception unit (10). The upper layer processing unit (14) performs processing of the MAC layer, the Packet Data Convergence Protocol (PDCP) layer, the radio link control (RLC) layer, and the RRC layer.

[0113] The media access control layer processing unit (15) included in the upper layer processing unit (14) performs processing of the MAC layer.

[0114] The wireless resource control layer processing unit (16) included in the upper layer processing unit (14) performs processing of the RRC layer. The wireless resource control layer processing unit (16) manages various configuration information / parameters of its device. The wireless resource control layer processing unit (16) configures various configuration information / parameters based on upper layer signals received from the base station device (3). In other words, the wireless resource control layer processing unit (16) configures various configuration information / parameters based on information representing various configuration information / parameters received from the base station device (3). Additionally, the configuration information may include information related to processing or configuring the physical channel, physical signal (i.e., physical layer), MAC layer, PDCP layer, RLC layer, and RRC layer. The parameters may also be upper layer parameters.

[0115] The wireless transmission / reception unit (10) performs physical layer processing such as modulation, demodulation, encoding, and decoding. The wireless transmission / reception unit (10) separates, demodulates, and decodes the received physical signal and outputs the information to the upper layer processing unit (14). The wireless transmission / reception unit (10) generates a physical signal by modulating, encoding, and generating a baseband signal (converting it into a time-continuous signal) the data, and transmits the physical signal to the base station device (3).

[0116] The RF unit (12) converts (down-converts) the signal received through the antenna unit (11) into a baseband signal by orthogonal demodulation and removes undesirable frequency components. The RF unit (12) outputs the processed analog signal to the baseband unit.

[0117] The baseband unit (13) converts an analog signal input from the RF unit (12) into a digital signal. The baseband unit (13) removes the portion corresponding to the periodic prefix (CP) from the converted digital signal, performs a Fast Fourier Transform (FFT) on the signal from which the CP has been removed, and extracts the signal in the frequency domain.

[0118] The baseband unit (13) performs an inverse fast Fourier transform (IFFT) on the data, generates an OFDM symbol, attaches a CP to the generated OFDM symbol, generates a baseband digital signal, and converts the baseband digital signal into an analog signal. The baseband unit (13) outputs the converted analog signal to the RF unit (12).

[0119] The RF unit (12) uses a low-pass filter to remove undesirable frequency components from the analog signal input from the baseband unit (13), up-converts the analog signal to a carrier frequency, and transmits the analog signal through the antenna unit (11). Additionally, the RF unit (12) amplifies power. Additionally, the RF unit (12) may include a function to control transmission power. The RF unit (12) is also referred to as a transmission power control unit.

[0120] Below, an example of the configuration of a base station device (3) according to one aspect of the present invention will be described.

[0121] FIG. 5 is a schematic block diagram of the configuration of a base station device (3) according to an aspect of the present invention. As illustrated, the base station device (3) is composed of a wireless transmission / reception unit (30) and an upper layer processing unit (34). The wireless transmission / reception unit (30) includes an antenna unit (31), an RF unit (32), and a baseband unit (33). The upper layer processing unit (34) includes a media access control layer processing unit (35) and a wireless resource control layer processing unit (36). The wireless transmission / reception unit (30) is also referred to as a transmission unit, a reception unit, or a physical layer processing unit.

[0122] The upper layer processing unit (34) performs processing of the MAC layer, PDCP layer, RLC layer, and RRC layer.

[0123] The media access control layer processing unit (35) included in the upper layer processing unit (34) performs processing of the MAC layer.

[0124] The wireless resource control layer processing unit (36) included in the upper layer processing unit (34) performs processing of the RRC layer. The wireless resource control layer processing unit (36) generates downlink data (transmission block), system information, RRC messages, MAC CE, and other things configured within PDSCH, obtains data from the upper node, and outputs the data to the wireless transmission / reception unit (30). Additionally, the wireless resource control layer processing unit (36) manages various configuration information / parameters of each terminal device (1). The wireless resource control layer processing unit (36) can configure various configuration information / parameters for each terminal device (1) through upper layer signals. In other words, the wireless resource control layer processing unit (36) transmits / reports information representing various configuration information / parameters. The configuration information may include information related to processing or configuring the physical channel, physical signal (i.e., physical layer), MAC layer, PDCP layer, RLC layer, and RRC layer. The parameters may be upper layer parameters.

[0125] The functions of the wireless transmission / reception unit (30) are the same as the functions of the wireless transmission / reception unit (10), so they will not be repeated here.

[0126] Each of the units indicated by reference numerals 10 to 16 included in the terminal device (1) may be configured as a circuit. Each of the units indicated by reference numerals 30 to 36 included in the base station device (3) may be configured as a circuit.

[0127] The terminal device (1) can multiplex uplink control information (UCI) to PUCCH and transmit it. The terminal device (1) can multiplex UCI to PUSCH and transmit it. UCI may include HARQ-ACK and / or CSI.

[0128] Multiple PUSCH types may be defined based on the type of data (UCI, UL-SCH) multiplexed in the PUSCH before multiplexing the UCI associated with the PUSCH to the PUSCH. For example, a PUSCH of aperiodic CSI (aperiodic CSI on the PUSCH), a PUSCH of semi-persistent CSI (semi-persistent CSI on the PUSCH), a PUSCH of dynamic scheduling (dynamically scheduled PUSCH), and a PUSCH of semi-static scheduling (semi-statically scheduled PUSCH) may be defined. Aperiodic CSI is also referred to as aperiodic CSI. Semi-persistent CSI is also referred to as semi-persistent CSI. In this embodiment, the PUSCH for dynamic scheduling does not include random access message 3.

[0129] The PUSCH of the aperiodic CSI is a PUSCH in which the aperiodic CSI is multiplexed. The aperiodic CSI is a channel status information report performed aperiodically. The aperiodic channel status information report can be represented based on at least the DCI format. The aperiodic channel status information report can be represented based on predetermined values ​​configured in the code points of the CSI request fields included in at least the DCI format.

[0130] The PUSCH of the semi-continuous CSI is referred to as a PUSCH in which the UCI of the semi-continuous CSI is multiplexed. The semi-continuous CSI is a channel status information report performed semi-continuously. To enable or disable semi-continuous CSI reporting using the PUSCH, the terminal device (1) determines whether some or all of the following requirements are satisfied. In other words, semi-continuous CSI reporting using the PUSCH is enabled using at least the DCI format.

[0131] Requirement A1: The DCI format is scrambled by SP-CSI-RNTI obtained by the upper layer parameter sp-csi-RNTI.

[0132] Requirement A2: A specific DCI format field for the activation of the reflective CSI is set to a predetermined value indicating the activation of the reflective CSI.

[0133] Requirement A3: A specific DCI format field for the deactivation of the reflective CSI is set to a predetermined value indicating the deactivation of the reflective CSI.

[0134] The transmission of semi-sustaining CSI can be enabled when both Requirement A1 and Requirement A2 are satisfied. The transmission of semi-sustaining CSI can be disabled when both Requirement A1 and Requirement A3 are satisfied.

[0135] The PUSCH of dynamic scheduling is dynamically scheduled by uplink acknowledgment in DCI format. The PUSCH may include a transmission block. The PUSCH of dynamic scheduling may be a PUSCH that is scheduled based on DCI format and is not represented as a non-periodic CSI based on DCI format.

[0136] A semi-statically scheduled PUSCH, scheduled by an acknowledgment trigger, is a PUSCH in which PUSCH resources are semi-statically allocated and transmission blocks are transmitted according to upper-layer parameters. A semi-statically scheduled PUSCH may include a Type 1 semi-statically scheduled PUSCH and a Type 2 semi-statically scheduled PUSCH. For a Type 1 semi-statically scheduled PUSCH, transmission in the time domain may be represented by the upper-layer parameter timeDomainAllocation. A Type 2 semi-statically scheduled PUSCH may be triggered by an uplink acknowledgment in DCI format. The transmission interval (periodism) for a semi-statically scheduled PUSCH may be obtained based on the upper-layer parameters.

[0137] When PUCCH does not conflict (overlap) with PUSCH in the time domain, the terminal device (1) may multiplex the UCI associated with PUCCH to PUCCH and transmit it. When PUCCH conflicts (overlaps) with PUSCH in the time domain, the terminal device (1) may multiplex the UCI associated with PUCCH to PUSCH and transmit it, and may not transmit PUCCH. PUCCH may be a PUCCH composed of the transmission of UCI. The transmission of UCI may be provided based on at least the DCI format and / or upper layer parameters.

[0138] UCIs associated with PUCCH do not include non-periodic CSIs. UCIs associated with PUCCH do not include semi-permanent CSIs for which reporting is enabled by the DCI format.

[0139] When a PUSCH of a non-periodic CSI and a dynamically scheduled PUSCH collide with a PUCCH in the time domain, the terminal device (1) can multiplex the UCI associated with the PUCCH to the PUSCH of the non-periodic CSI and transmit the multiplexed UCI.

[0140] When a PUSCH of a non-periodic CSI and a semi-statically scheduled PUSCH collide with a PUCCH in the time domain, the terminal device (1) can multiplex the UCI associated with the PUCCH to the PUSCH of the non-periodic CSI and transmit the multiplexed UCI.

[0141] When a dynamically scheduled PUSCH and a semi-statically scheduled PUSCH collide with a PUCCH in the time domain, the terminal device (1) can multiplex the UCI associated with the PUCCH to the dynamically scheduled PUSCH and transmit the multiplexed UCI.

[0142] When multiple PUSCHs (a set of PUSCHs) collide with a PUCCH in the time domain, the PUSCH for multiplexing the UCI can be obtained based on the index of the serving cell to which each of the multiple PUSCHs is mapped and / or the starting position of each of the multiple PUSCHs. For example, when multiple PUSCHs of the same PUSCH type collide with a PUCCH in the time domain and multiple PUSCHs are used in multiple serving cells, the terminal device (1) multiplexes the UCI associated with the PUCCH to the serving cell having a lower identifier value and transmits the multiplexed UCI on the PUSCH of the serving cell. When multiple PUSCHs are transmitted from the serving cell, the terminal device (1) can multiplex the UCI associated with the PUCCH to the first PUSCH in the time domain among the multiple PUSCHs in the serving cell and transmit the multiplexed UCI.

[0143] FIG. 6 is a diagram illustrating a method for selecting a PUSCH that multiplexes a UCI when one or more PUSCHs collide with a PUCCH in the time domain, according to an aspect of the present invention.

[0144] For example, in the first example, when a PUCCH (601) containing a UCI collides with a PUSCH (600) in the time domain, the terminal device (1) transmits a multiplexed UCI to the PUSCH (600). The PUSCH (600) may be any one of a PUSCH of a non-periodic CSI, a PUSCH of a semi-periodic CSI (a semi-periodic CSI on the PUSCH), a dynamically scheduled PUSCH, and a semi-statically scheduled PUSCH. The PUCCH containing a UCI may be a PUCCH in which the transmission of the UCI is configured based on at least upper layer parameters. The PUCCH containing a UCI may be a PUCCH in which the transmission of the UCI is indicated based on at least a DCI.

[0145] In the second example, when a PUCCH (612) containing a UCI collides with a non-periodic CSI PUSCH (611) and a PUSCH (610) in the time domain, the terminal device (1) multiplexes the UCI to the non-periodic CSI PUSCH (611) and transmits the multiplexed UCI. The PUSCH (610) may be either a dynamically scheduled PUSCH or a semi-statically scheduled PUSCH.

[0146] In the third example, when a PUCCH (625) containing a UCI collides with a first PUSCH group (first PUSCHs) containing one or more dynamically scheduled PUSCHs (622, 623, 624) and a second PUSCH group (second PUSCHs) containing one or more semi-statically scheduled PUSCHs (620, 621), the terminal device (1) multiplexes the UCI to one of the PUSCHs of the first PUSCH group and transmits it.

[0147] In the fourth example, when a PUCCH (634) containing a UCI collides with a plurality of dynamically scheduled PUSCHs (630, 631, 632, 633) in the time domain, the terminal device (1) multiplexes the UCI into a PUSCH (630) of a serving cell having a serving cell identifier at the start and a low value in the time domain, and transmits the multiplexed UCI.

[0148] When a PUCCH containing a UCI collides with one or more PUSCHs in the time domain, the PUSCH transmitted by multiplexing the UCI is selected from one or more PUSCHs based at least on whether each of the one or more PUSCHs is a PUSCH of the semi-sustained CSI.

[0149] When a semi-permanent CSI PUSCH, a non-periodic CSI PUSCH, and / or a dynamically scheduled PUSCH and / or a semi-statically scheduled PUSCH collides with a PUCCH containing a UCI in the time domain, the terminal device (1) multiplexes the UCI and transmits it over the semi-permanent CSI PUSCH. When a semi-permanent CSI PUSCH and a first PUSCH group collide with a PUCCH containing a UCI in the time domain, the UCI is multiplexed and transmitted over the semi-permanent CSI PUSCH. A first PUSCH group includes at least one non-periodic CSI PUSCH, one or more dynamically scheduled PUSCHs, and / or some or all of one or more semi-statically scheduled PUSCHs. For example, when a semi-permanent CSI PUSCH and a non-periodic CSI PUSCH collide with a PUCCH containing a UCI in the time domain, the UCI may be multiplexed and transmitted over the semi-permanent CSI PUSCH. Additionally, when a PUSCH of a semi-sustaining CSI and a dynamically scheduled PUSCH collide with a PUCCH containing a UCI in the time domain, the UCI is multiplexed and transmitted to the PUSCH of the semi-sustaining CSI.

[0150] When a PUCCH containing a UCI collides with a PUSCH of a semi-permanent CSI and a PUSCH of an aperiodic CSI in the time domain, the terminal device (1) multiplexes the UCI onto the PUSCH of the aperiodic CSI and transmits it. When a PUCCH containing a UCI collides with a PUSCH of a semi-permanent CSI and a dynamically scheduled PUSCH and / or a semi-statically scheduled PUSCH in the time domain, the terminal device (1) multiplexes the UCI onto the PUSCH of the semi-permanent CSI. When a PUSCH of a semi-permanent CSI and a PUSCH of an aperiodic CSI collide with a PUCCH containing a UCI in the time domain, the UCI is multiplexed onto the PUSCH of the aperiodic CSI and transmitted. When a PUSCH of a semi-permanent CSI and a second PUSCH group collide with a PUCCH containing a UCI in the time domain, the UCI is multiplexed onto the PUSCH of the semi-periodic CSI and transmitted. The second PUSCH group may include at least one dynamically scheduled PUSCH and / or some or all of one or more semi-statically scheduled PUSCHs.

[0151] When a PUCCH containing a UCI collides with a PUSCH of a semi-permanent CSI and a PUSCH of an aperiodic CSI in the time domain, the terminal device (1) multiplexes the UCI onto the PUSCH of the aperiodic CSI and transmits it. When a PUCCH containing a UCI collides simultaneously with a PUSCH of a semi-permanent CSI and a dynamically scheduled PUSCH in the time domain, the terminal device (1) multiplexes the UCI onto the dynamically scheduled PUSCH and transmits the multiplexed UCI. When a PUCCH containing a UCI collides with a PUSCH of a semi-permanent CSI and a semi-statically scheduled PUSCH in the time domain, the UCI is multiplexed onto the PUSCH of the semi-permanent CSI and transmitted. When a PUSCH of a semi-permanent CSI and a third PUSCH group collide with a PUCCH containing a UCI in the time domain, the UCI is multiplexed onto one PUSCH selected from the third PUSCH group and transmitted. A third PUSCH group may include at least one PUSCH of a non-periodic CSI and / or some or all of one or more dynamically scheduled PUSCHs. For example, when a PUSCH of a semi-periodic CSI and a PUSCH of a non-periodic CSI collide with a PUCCH containing a UCI in the time domain, the UCI is multiplexed and transmitted on the PUSCH of the non-periodic CSI. Additionally, for example, when a PUSCH of a semi-periodic CSI and a dynamically scheduled PUSCH collide with a PUCCH containing a UCI in the time domain, the UCI is multiplexed and transmitted on the dynamically scheduled PUSCH. When a PUSCH of a semi-periodic CSI and a semi-statically scheduled PUSCH collide with a PUCCH containing a UCI in the time domain, the UCI is multiplexed and transmitted on the PUSCH of the semi-periodic CSI.

[0152] When a PUCCH containing a UCI collides with a PUSCH of a semi-permanent CSI and a PUSCH of an aperiodic CSI in the time domain, the terminal device (1) multiplexes the UCI onto the PUSCH of the aperiodic CSI and transmits it. When a PUCCH containing a UCI collides with a PUSCH of a semi-permanent CSI and a dynamically scheduled PUSCH in the time domain, the terminal device (1) multiplexes the UCI onto the dynamically scheduled PUSCH and transmits the multiplexed UCI. When a PUCCH containing a UCI collides simultaneously with a PUSCH of a semi-permanent CSI and a semi-statically scheduled PUSCH in the time domain, the terminal device (1) multiplexes the UCI onto the semi-statically scheduled PUSCH and transmits it. When a PUSCH of a semi-permanent CSI and a fourth PUSCH group collide with a PUCCH containing a UCI in the time domain, the UCI is multiplexed onto one PUSCH selected from the fourth PUSCH group and transmitted. The fourth PUSCH group may include at least one non-periodic CSI PUSCH, one or more dynamically scheduled PUSCHs, and / or some or all of one or more semi-statically scheduled PUSCHs.

[0153] When a PUCCH containing a UCI collides with a fifth PUSCH group in the time domain, the terminal device (1) multiplexes the UCI to one PUSCH selected from the fifth PUSCH group and transmits the multiplexed UCI. When a PUCCH containing a UCI collides with a fifth PUSCH group and a sixth PUSCH group in the time domain, the terminal device (1) multiplexes the UCI to one PUSCH selected from the fifth PUSCH group. The fifth PUSCH group may include at least one PUSCH of semi-periodic CSI and / or part or all of one or more PUSCHs of non-periodic CSI. The sixth PUSCH group may include at least one dynamically scheduled PUSCH and / or part or all of one or more semi-statically scheduled PUSCHs. One PUSCH selected from the fifth PUSCH group is obtained based on the index of the serving cell to which each PUSCH included in the fifth PUSCH is mapped and / or the respective starting position of the PUSCH included in the fifth PUSCH group.

[0154] When a PUCCH containing a UCI collides with a PUSCH of a non-periodic CSI and a seventh PUSCH group in the time domain, the terminal device (1) multiplexes the UCI to the PUSCH of the non-periodic CSI and transmits the multiplexed UCI. The seventh PUSCH group may include at least one PUSCH of a semi-periodic CSI and / or part or all of one or more dynamically scheduled PUSCHs. When a PUCCH containing a UCI collides with a PUSCH of a non-periodic CSI and a semi-statically scheduled PUSCH in the time domain, the terminal device (1) multiplexes the UCI to the PUSCH of the non-periodic CSI and transmits it. When a PUCCH containing a UCI collides with a seventh PUSCH group and a semi-statically scheduled PUSCH in the time domain, the terminal device (1) multiplexes the UCI to a PUSCH selected from the seventh PUSCH group. A PUSCH selected from the 7th PUSCH group is obtained based on the index of the serving cell to which each PUSCH included in the 7th PUSCH is mapped and / or the respective starting position of the PUSCH included in the 7th PUSCH group.

[0155] When a PUCCH containing a UCI collides with a PUSCH of an aperiodic CSI and a dynamically scheduled PUSCH in the time domain, the terminal device (1) multiplexes the UCI onto the PUSCH of the aperiodic CSI and transmits it. When a PUCCH containing a UCI collides with a PUSCH of an aperiodic CSI and an 8th PUSCH group in the time domain, the terminal device (1) multiplexes the UCI onto the PUSCH of the aperiodic CSI and transmits the multiplexed UCI. The 8th PUSCH group may include at least one PUSCH of a semi-periodic CSI and / or part or all of one or more semi-statically scheduled PUSCHs. When a PUCCH containing a UCI collides with a dynamically scheduled PUSCH and an 8th PUSCH group in the time domain, the terminal device (1) multiplexes the UCI onto the dynamically scheduled PUSCH and transmits it. When a PUCCH containing a UCI collides with the 8th PUSCH group in the time domain, the UCI is multiplexed and transmitted to the PUSCH selected from the 8th PUSCH group.

[0156] When a PUCCH containing a UCI collides with a PUSCH of a plurality of non-periodic CSIs in the time domain, and when a PUSCH of a plurality of non-periodic CSIs is used in a plurality of serving cells, the terminal device (1) transmits the UCI associated with the PUCCH to the PUSCH of the non-periodic CSI of the serving cell having a low value serving cell identifier and transmits the multiplexed UCI. When a PUSCH of a plurality of non-periodic CSIs is transmitted from a serving cell, the terminal device (1) multiplexes the UCI associated with the PUCCH to the PUSCH of the first non-periodic CSI in the time domain among the PUSCHs of a plurality of non-periodic CSIs within the serving cell and transmits the multiplexed UCI.

[0157] When a PUCCH containing a UCI conflicts with a PUSCH of multiple semi-dependent CSIs in the time domain, and when the PUSCH of multiple semi-dependent CSIs is used in multiple serving cells, the terminal device (1) multiplexes the UCI associated with the PUCCH into the PUSCH of the semi-dependent CSI of the serving cell having a low-value serving cell identifier and transmits the multiplexed UCI. When the PUSCH of multiple semi-dependent CSIs is transmitted from the serving cell, the terminal device (1) multiplexes the UCI associated with the PUCCH into the PUSCH of the first semi-dependent CSI in the time domain among the PUSCHs of multiple semi-dependent CSIs within the serving cell and transmits the multiplexed UCI.

[0158] When a PUCCH containing a UCI conflicts in the time domain with a PUSCH of one or more non-periodic CSIs and / or a PUSCH of one or more semi-periodic CSIs and / or a PUSCH of one or more dynamically scheduled PUSCHs and / or a semi-statically scheduled PUSCH, the PUSCH for multiplexing and transmitting the UCI associated with the PUCCH may be determined based on at least y, c, and l. For example, when a PUCCH containing a UCI conflicts in the time domain with a PUSCH of one or more non-periodic CSIs and / or a PUSCH of one or more semi-periodic CSIs and / or a PUSCH of one or more dynamically scheduled PUSCHs and / or a semi-statically scheduled PUSCH, the PUSCH for multiplexing and transmitting the UCI associated with the PUCCH is a priority value obtained based on Equation 1. It is determined as follows. For example, the terminal device (1) has the lowest UCI related to PUCCH. It multiplexes the UCI to the corresponding PUSCH and transmits the multiplexed UCI. That is, when a PUCCH containing a UCI collides with one or more PUSCHs in the time domain, the terminal device (1) transmits the UCI associated with the PUCCH to the lowest of the one or more PUSCHs. Multiplexes the corresponding PUSCH and transmits the multiplexed UCI.

[0159] [Mathematical Formula 1]

[0160]

[0161] N cells is the maximum number of serving cells. N cells can be obtained by the upper layer parameter maxNrofServingCells. N cells can also be a predetermined value (e.g., 16 or 32).

[0162] N time may be a value related to the number of PUSCH time-domain resource allocation candidates that can be transmitted in a single slot. For example, N time It can be obtained based on higher-level parameters. For example, N time is N slot symb Can correspond to. N slot symb is the number of OFDM symbols contained in a single slot. In a carrier aggregation configured with a subcarrier spacing configuration μ for each of multiple carriers, N slot symb It can correspond to a carrier configured with a maximum subcarrier spacing configuration μ. In a carrier aggregation configured with a subcarrier spacing configuration μ for each of the multiple carriers, N slot symb corresponds to a carrier configured with a maximum subcarrier spacing configuration μ among the carriers of one or more PUSCHs that collide with a PUCCH containing a (assigned) UCI ​​transmitted in the time domain. When the maximum subcarrier spacing configuration μ is 2 and the CP configuration is an extended CP (extended periodic prefix), N slot symbis N for the carrier when the subcarrier spacing configuration μ is 2 and the CP configuration is normal CP (normal periodic prefix). slot symb It is obtained as. For example, N time ceiling (K · N slot symb It can correspond to ). The value of K can be obtained based on at least μ. The value of K is 2 (μ-μPUCCH) It can be obtained as follows. μPUCCH is the configuration of the carrier subcarrier interval where PUCCH is used. Ceiling represents the ceiling function. The ceiling function outputs the smallest integer greater than the input value.

[0163] For example, in example a1, when μ = 3 and μPUCCH = 1 are configured, K = 4, and N slot symb = 14 and N time = 56.

[0164] In example a2, when μ = 0 and μPUCCH = 2 are configured and the CP configuration of the carrier using PUCCH is an extended CP, K = 0.25 and N slot symb = 14 and N time = 4.

[0165] In example a3, μ = 2 and μPUCCH = 4 are configured, and when the CP configuration of the carrier using PUSCH for μ = 2 is an extended CP, K = 0.25 and N slot symb = 14 and N time = 4

[0166] c is the index of the serving cell (c = 0, 1,..., N cells -1).

[0167] In the fourth example, c = 1 can be configured for PUSCH (632) and PUSCH (633), and c = 0 can be configured for PUSCH (630) and PUSCH (631).

[0168] l can be indexed sequentially from the initial start position of the PUSCH transmission in each of the serving cells. l can correspond to the index of the first OFDM symbol of the PUSCH.

[0169] In the third example, l = 0 can be configured for PUSCH (622), l = 1 can be configured for PUSCH (623), l = 2 can be configured for PUSCH (624), l = 3 can be configured for PUSCH (620), and l = 4 can be configured for PUSCH (621).

[0170] In the fourth example, l = 0 can be configured for PUSCH (632), l = 1 can be configured for PUSCH (633), l = 0 can be configured for PUSCH (630), and l = 1 can be configured for PUSCH (631).

[0171] y is a weighting factor used to determine the priority of PUSCH types, including at least non-periodic CSI PUSCH, semi-periodic CSI PUSCH, dynamically scheduled PUSCH, and semi-statically scheduled PUSCH. The value of y can be configured for each PUSCH type.

[0172] For example, in example b1, y = 0 can be configured for a semi-periodic CSI PUSCH, y = 1 can be configured for a non-periodic CSI PUSCH, y = 2 can be configured for a dynamically scheduled PUSCH, and y = 3 can be configured for a semi-statically scheduled PUSCH.

[0173] In example b2, y = 1 can be configured for a semi-permanent CSI PUSCH, y = 0 can be configured for a non-periodic CSI PUSCH, y = 2 can be configured for a dynamically scheduled PUSCH, and y = 3 can be configured for a semi-statically scheduled PUSCH.

[0174] In example b3, y = 2 can be configured for a semi-permanent CSI PUSCH, y = 0 can be configured for a non-periodic CSI PUSCH, y = 1 can be configured for a dynamically scheduled PUSCH, and y = 3 can be configured for a semi-statically scheduled PUSCH.

[0175] In example b4, y = 3 can be configured for a semi-permanent CSI PUSCH, y = 0 can be configured for a non-periodic CSI PUSCH, y = 1 can be configured for a dynamically scheduled PUSCH, and y = 2 can be configured for a semi-statically scheduled PUSCH.

[0176] (1) To achieve the above objective, the present invention implements the following method. That is, the first aspect of the present invention is a terminal device, and the terminal device includes a receiving unit that receives a PDCCH and at least a PDSCH scheduled based on the PDCCH, wherein when a PUCCH collides with one or more PUSCHs in the time domain, one PUSCH is selected from one or more PUSCHs based on at least whether each of the one or more PUSCHs is a PUSCH of the CSI, and a UCI corresponding to the PDSCH is transmitted on the selected PUSCH.

[0177] (2) A second aspect of the present invention is a base station device, and the base station device includes a transmitting unit that transmits a PDCCH and at least a PDSCH scheduled based on the PDCCH, wherein when a PUCCH collides with one or more PUSCHs in the time domain, one PUSCH is selected from one or more PUSCHs based on at least whether each of the one or more PUSCHs is a PUSCH of the CSI, and a UCI corresponding to the PDSCH is received on the selected PUSCH.

[0178] A program running on a base station device (3) and a terminal device (1) according to the present invention controls programs (programs that enable a computer to function), such as a Central Processing Unit (CPU), to realize the functions of the embodiments according to the present invention. Additionally, information processed by the devices is temporarily stored in Random Access Memory (RAM) during processing and is subsequently stored in various read-only memory (ROM), such as Flash Read Only Memory (Flash ROM) or a Hard Disk Drive (HDD), which can be read, corrected, and written by a CPU as needed.

[0179] Additionally, a portion of the terminal device (1) or base station device (3) in the above embodiments may be realized by a computer. In this situation, a program for realizing control functions may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read by a computer system and executed to realize the functions.

[0180] Additionally, in this specification, "computer system" is a computer system built on a terminal device (1) or a base station device (3) and includes hardware such as an OS and peripheral devices. "Computer-readable recording medium" refers to portable media such as a flexible disc, an optical disc, a ROM, and a CD-ROM, and storage devices such as a hard disk built on a computer system.

[0181] Additionally, "computer-readable recording medium" may include a medium that dynamically stores a program for a short period, such as a communication line for transmitting a program through a network such as the Internet or a communication line such as a telephone line, and a medium that stores a program for a predetermined period, such as volatile memory within a computer system on the server or client side in such situations. Additionally, the aforementioned program may be a program for realizing some of the aforementioned functions, and may be a program capable of realizing the aforementioned functions in combination with a program already recorded in a computer system.

[0182] The base station device (3) in the above embodiments may also be realized as a set of multiple devices (device group). Each of the devices included in the device group may include part or all of each function or each function block of the base station device (3) according to the above embodiments. The device group may only need to have each function or each function block of the base station device (3). Additionally, the terminal device (1) according to the above embodiments may also communicate with the base station device as a set.

[0183] Additionally, the base station device (3) in the above embodiments may be an EUTRAN (Evolved Universal Terrestrial Radio Access Network) and / or an NG-RAN (NextGen RAN, NR RAN). Additionally, the base station device (3) in the above embodiments may have some or all of the functions of a higher node for an eNodeB and / or gNB.

[0184] Additionally, some or all of the terminal device (1) and base station device (3) in the aforementioned embodiments may typically be realized as an LSI of an integrated circuit or as a chipset. Each functional block of the terminal device (1) and base station device (3) may be formed individually as a single chip, or some or all may be integrated to form a chip. Additionally, the method of circuit integration is not limited to an LSI and may be realized by a dedicated circuit or a general-purpose processor. Additionally, if a technology for forming an integrated circuit that replaces an LSI emerges due to advancements in semiconductor technology, an integrated circuit based on such technology may also be used.

[0185] Additionally, in the above embodiments, the terminal device is described as an example of a communication device. The present invention is not limited to the disclosed embodiments and may be applied to fixed or non-mobile electronic equipment installed indoors or outdoors. For example, the electronic equipment may be audio-video equipment, kitchen equipment, cleaning equipment, air conditioners, office equipment, vending machines, other home appliances, terminal devices, or communication devices.

[0186] As described above, embodiments of the present invention are disclosed in detail with reference to the accompanying drawings. However, the embodiments are not limited to the disclosed embodiments. The present invention also includes design variations without departing from the scope or spirit of the disclosed concepts. Additionally, the present invention also includes modifications within the scope of the claims and embodiments that suitably combine various disclosed embodiments. Additionally, the disclosed embodiments may have component substitutions having similar effects.

Claims

Claim 1 A terminal device comprising: a receiving unit for receiving a Physical Downlink Control Channel (PDCCH) having a first Downlink Control Information (DCI) format; and a transmitting unit for transmitting a Physical Uplink Control Channel (PUCCH) and a Physical Uplink Shared Channel (PUSCH) including Uplink Control Information (UCI), wherein the transmitting unit multiplexes the UCI to the first PUSCH when the PUCCH collides with a plurality of PUSCHs including a first PUSCH that is dynamically scheduled through the first DCI format and a second PUSCH that is semi-statically scheduled, and multiplexes the UCI to the third PUSCH when the PUCCH collides with a third PUSCH for a CSI that is transmitted atypically, and wherein the first PUSCH and the second PUSCH do not overlap with each other in the time domain. Claim 2 A terminal device according to claim 1, wherein when the PUCCH collides with a plurality of the second PUSCHs in a plurality of serving cells, the transmitting unit multiplexes the UCI to the second PUSCH of the cell having the minimum cell index among the plurality of the second PUSCHs. Claim 3 delete Claim 4 A base station device comprising: a transmitting unit for transmitting a Physical Downlink Control Channel (PDCCH) having a first Downlink Control Information (DCI) format; and a receiving unit for receiving a Physical Uplink Control Channel (PUCCH) and a Physical Uplink Shared Channel (PUSCH) including Uplink Control Information (UCI), wherein the receiving unit receives a PUSCH with the UCI multiplexed in the first PUSCH when the PUCCH collides with a plurality of PUSCHs including a first PUSCH that is dynamically scheduled through the first DCI format and a second PUSCH that is semistatically scheduled, and receives a PUSCH with the UCI multiplexed in the third PUSCH when the PUCCH collides with a third PUSCH for a CSI that is transmitted atypically, and the first PUSCH and the second PUSCH do not overlap with each other in the time domain. Claim 5 A communication method used in a terminal device, comprising: receiving a physical downlink control channel (PDCCH) having a first downlink control information (DCI) format; multiplexing uplink control information (UCI) to the first PUSCH when the physical uplink control channel (PUCCH) collides with a plurality of PUSCHs, including a first physical uplink sharing channel (PUSCH) that is dynamically scheduled through the first DCI format and a second PUSCH that is semistatically scheduled; and multiplexing the UCI to the third PUSCH when the PUCCH collides with a third PUSCH for a CSI that is transmitted non-periodically, wherein the first PUSCH and the second PUSCH do not overlap each other in the time domain. Claim 6 A communication method used in a base station device, comprising: transmitting a physical downlink control channel (PDCCH) having a first downlink control information (DCI) format; multiplexing the uplink control information (UCI) to the first PUSCH when the physical uplink control channel (PUCCH) collides with a plurality of PUSCHs, including a first PUSCH that is dynamically scheduled through the first DCI format and a second PUSCH that is semistatically scheduled; and multiplexing the UCI to the third PUSCH when the PUCCH collides with a third PUSCH for a CSI that is transmitted non-periodically, wherein the first PUSCH and the second PUSCH do not overlap each other in the time domain.

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