阅读说明：本技术 终端装置、基站装置以及方法 (Terminal device, base station device, and method ) 是由 林会发 铃木翔一 吉村友树 李泰雨 大内涉 野上智造 于 2019-09-18 设计创作，主要内容包括：终端装置具备：接收部,其接收第一DCI格式的PDCCH；和发送部,其发送包括UCI的PUCCH以及PUSCH,对于上述发送部而言,在上述PUCCH与包括由上述第一DCI格式动态调度的第一PUSCH以及用于半持续地发送的CSI的第二PUSCH的多个PUSCH冲突的情况下,将上述UCI复用到上述第一PUSCH,在上述PUCCH与用于非周期性地发送的CSI的第三PUSCH冲突的情况下,将上述UCI复用到上述第三PUSCH。(The terminal device is provided with: a reception unit that receives a PDCCH of a first DCI format; and a transmission unit configured to transmit a PUCCH and a PUSCH including UCI, wherein the transmission unit is configured to multiplex the UCI to the first PUSCH when the PUCCH collides with a plurality of PUSCHs including a first PUSCH dynamically scheduled by the first DCI format and a second PUSCH for semi-persistently transmitting CSI, and to multiplex the UCI to the third PUSCH when the PUCCH collides with a third PUSCH for aperiodically transmitting CSI.)

1. A terminal device is characterized by comprising:

a receiving unit that receives a pdcch (physical Downlink Control channel) in a first dci (Downlink Control information) format; and

a transmission unit for transmitting a PUCCH (physical Uplink Control channel) and a PUSCH (physical Downlink Shared channel) including UCI (Uplink Control information),

as for the transmission section, it is possible that,

multiplexing the UCI to a first PUSCH on a condition that the PUCCH collides with a plurality of PUSCHs including the first PUSCH dynamically scheduled by the first DCI format and a second PUSCH for CSI (channel State information) transmitted semi-persistently,

multiplexing the UCI to a third PUSCH for the aperiodic transmitted CSI, on a condition that the PUCCH collides with the third PUSCH.

2. A terminal device according to claim 1,

the transmission unit multiplexes the UCI to the second PUSCH of a cell having a smallest cell index among the plurality of second PUSCHs, when the PUCCH collides with the plurality of second PUSCHs in a plurality of serving cells.

3. A terminal device according to claim 1,

the aperiodically transmitted CSI is indicated based on a CSI request field included in the second DCI format being set with a prescribed value,

the Semi-persistently transmitted CSI is activated in a case where a prescribed value indicating activation of Semi-persistently CSI is set in a prescribed field of a third DCI format and in a case where the third DCI format is scrambled by a SP-CSI-RNTI (Semi Persistent-Channel State Information-Radio Network temporal identity) given by an upper layer parameter SP-CSI-RNTI,

the semi-persistently transmitted CSI is inactivated when a prescribed value indicating inactivation of semi-persistent CSI is set in the prescribed field of a fourth DCI format and when the fourth DCI format is scrambled by SP-CSI-RNTI given by higher layer parameters SP-CSI-RNTI.

4. A base station device is characterized by comprising:

a transmitting unit that transmits a pdcch (physical Uplink Control channel) in a first dci (downlink Control information) format; and

a receiving unit for receiving a PUCCH (physical Uplink Control channel) and a PUSCH (physical Downlink Shared channel) including UCI (Uplink Control information),

as for the receiving section, it is possible that,

receiving a first PUSCH into which UCI is multiplexed in a case where a PUCCH collides with a plurality of PUSCHs including a first PUSCH dynamically scheduled by the first DCI format and a second PUSCH for semi-persistently transmitted CSI (channel State information),

receiving a third PUSCH into which UCI is multiplexed, when the PUCCH collides with the third PUSCH for the CSI that is transmitted aperiodically.

5. A communication method for a terminal device, characterized in that,

receiving a PDCCH (physical Downlink Control channel) in a first DCI (Downlink Control information) format,

multiplexing UCI (uplink Control information) to a first PUSCH in case that PUCCH (physical uplink Control channel) collides with PUSCHs including the first PUSCH (physical Downlink Shared channel) dynamically scheduled by the first DCI format and a second PUSCH for CSI (channel State information) transmitted semi-persistently,

multiplexing the UCI to a third PUSCH for the aperiodic transmitted CSI, on a condition that the PUCCH collides with the third PUSCH.

6. A communication method for a base station apparatus, characterized in that,

transmitting a PDCCH (physical Uplink Control channel) in a first DCI (Downlink Control information) format,

receiving a first PUSCH (physical uplink Control channel) multiplexed with UCI (uplink Control information) when a PUCCH collides with a plurality of PUSCHs including a first PUSCH dynamically scheduled in the first DCI format and a second PUSCH for semi-persistently transmitting CSI (channel State information),

receiving a third PUSCH into which UCI is multiplexed, when the PUCCH collides with the third PUSCH for the CSI that is transmitted aperiodically.

Technical Field

The invention relates to a terminal device, a base station device and a method.

Priority is claimed by the present application to Japanese application No. 2018-174702, 9/19/2018, the contents of which are incorporated herein by reference.

Background

In the third Generation partnership project (3GPP: 3)^rdGeneration Partnership Project (hereinafter referred to as "Long Term Evolution (LTE)": long term evolution "or" EUTRA: Evolved Universal Radio Access ": evolved universal terrestrial radio access. ) The study was conducted. In LTE, a base station apparatus is referred to as enodeb (evolved nodeb), and a terminal apparatus is referred to as ue (user equipment). LTE is a cellular communication system in which areas covered by a plurality of base station apparatuses are arranged in a cell shape. A single base station apparatus may manage a plurality of serving cells.

In order to be proposed by 3GPP in imt (International Mobile telecommunications) -2020, which is a next generation Mobile communication system specification established by the International Telecommunications Union (ITU), the next generation specification (NR: New Radio) is being studied (non-patent document 1). NR is required to satisfy the requirements of three scenarios, i.e., eMBB (enhanced Mobile BroadBand enhancement), mtc (massive Machine Type Communication), URLLC (Ultra Reliable and Low Latency Communication), within the framework of a single technology.

Documents of the prior art

Non-patent document

Non-patent document 1 "New SID propofol: Study on New Radio Access Technology", RP-160671, NTT docomo, 3GPP TSG RAN Meeting #71, Goteborg, Sweden, 7th-10th March, 2016.

Disclosure of Invention

Technical problem to be solved by the invention

The invention provides a terminal device for efficiently performing communication, a communication method for the terminal device, a base station device for efficiently performing communication, and a communication method for the base station device.

Means for solving the problems

(1) A first aspect of the present invention is a terminal device including: a reception unit that receives a Physical Downlink Control Channel (PDCCH) of a first DCI (Downlink Control Information) format; and a transmitting unit configured to transmit a Physical Uplink Control Channel (PUCCH) including UCI (Uplink Control Information) and a Physical Downlink Shared Channel (PUSCH), wherein the transmitting unit multiplexes the UCI into the first PUSCH when the PUCCH collides with a plurality of PUSCHs including a first PUSCH dynamically scheduled by the first DCI format and a second PUSCH for semi-continuously transmitting CSI (Channel State Information), and multiplexes the UCI into the third PUSCH when the PUCCH collides with a third PUSCH for aperiodic-transmitted CSI.

(2) A second aspect of the present invention is a base station apparatus including: a transmission unit configured to transmit a Physical Uplink Control Channel (PDCCH) of a first DCI (Downlink Control Information) format; and a reception unit configured to receive a Physical Downlink Shared Channel (PUSCH), wherein the reception unit receives a first PUSCH multiplexed with UCI (Uplink Control Information) when a plurality of PUSCHs including a first PUSCH dynamically scheduled by the first DCI format and a second PUSCH including CSI (Channel State Information) for semi-continuously transmitting collide with a PUCCH (Physical Uplink Control Channel), and receives a third PUSCH multiplexed with UCI when the PUCCH collides with a third PUSCH for aperiodic-transmitted CSI.

(3) A third aspect of the present invention is a communication method for a terminal device, which receives a PDCCH (Physical Downlink Control Channel) of a first DCI (Downlink Control Information) format, multiplexes UCI (Uplink Control Information) to a first PUSCH in the case where a PUCCH (Physical Uplink Control Channel) collides with a plurality of PUSCHs including a first PUSCH dynamically scheduled by the first DCI format (Physical Downlink Shared Channel) and a second PUSCH for semi-persistently transmitting CSI (Channel State Information), and multiplexes UCI to a third PUSCH in the case where the PUCCH collides with a third PUSCH for aperiodic-transmitted CSI.

(4) A fourth aspect of the present invention is a communication method for a base station apparatus, wherein a PDCCH (Physical Uplink Control Channel) of a first DCI (Downlink Control Information) format is transmitted, the first PUSCH into which UCI (Uplink Control Information) is multiplexed is received when a plurality of PUSCHs including a first PUSCH dynamically scheduled in the first DCI format and a second PUSCH including CSI (Channel State Information) for semi-continuously transmitting collide with a PUCCH (Physical Uplink Control Channel), and the third PUSCH into which UCI is multiplexed is received when the PUCCH collides with a third PUSCH for aperiodic-transmitted CSI.

Effects of the invention

According to the present invention, the terminal device can perform communication efficiently. In addition, the base station apparatus can perform communication efficiently.

Drawings

Fig. 1 is a conceptual diagram of a wireless communication system according to an embodiment of the present invention.

FIG. 2 shows N in one embodiment of the present embodiment^slot _symbAn example of the relationship among the subcarrier spacing setting μ, the slot setting, and the CP setting.

Fig. 3 is a schematic diagram showing an example of a resource grid of a subframe according to an aspect of the present embodiment.

Fig. 4 is a schematic block diagram showing the configuration of the terminal device 1 according to one embodiment of the present embodiment.

Fig. 5 is a schematic block diagram showing the configuration of the base station apparatus 3 according to one aspect of the present embodiment.

Fig. 6 is a diagram showing a method of selecting a PUSCH for transmitting UCI when a PUCCH including UCI collides with 1 or a plurality of PUSCHs in the time domain according to one aspect of the present embodiment.

Detailed Description

Hereinafter, embodiments of the present invention will be described.

That a parameter or information represents one or more values means that at least the parameter or the information representing the one or more values may also be comprised. The higher layer parameter may also be a single higher layer parameter. The upper layer parameter may also be an Information Element (IE) including a plurality of parameters.

Fig. 1 is a conceptual diagram of a wireless communication system according to an embodiment of the present invention. In fig. 1, the radio communication system includes terminal apparatuses 1A to 1C and a base station apparatus 3. Hereinafter, the terminal apparatuses 1A to 1C are also referred to as terminal apparatuses 1.

The base station apparatus 3 may be configured to include one or both of an MCG (Master Cell Group) and an SCG (Secondary Cell Group). The MCG is a group of serving cells including at least PCell (Primary Cell: Primary Cell). The SCG is a group of serving cells including at least pscells (Primary Secondary cells). The PCell may also be a serving cell given based on the initial connection. The MCG may include one or more scells (Secondary cells). The SCG may also be configured to include one or more scells. The serving cell identifier (serving cell identity) is a shorter identifier for identifying a serving cell. The serving cell identifier may also be given by higher layer parameters.

Hereinafter, a frame configuration will be described.

In the radio communication system according to one aspect of the present embodiment, at least OFDM (Orthogonal Frequency Division multiplexing) is used. An OFDM symbol is a unit of a time domain of OFDM. The OFDM symbol includes at least one or more subcarriers (subcarriers). The OFDM symbols may also be converted into a time-continuous signal (time-continuous signal) in the baseband signal generation.

SubCarrier Spacing (SCS) may also be set to 2 by SubCarrier Spacing Δ f^μ15 kHz. For example, the subcarrier spacing setting (subcarrier spacing configuration) μmay be set to any one of 0, 1, 2, 3, 4, and/or 5. The setting μ of the subcarrier spacing may also be given by upper layer parameters for a certain BWP (BandWidth Part: BandWidth Part).

In the radio communication system according to one aspect of the present embodiment, a Time unit (Time unit) T is used to represent the length of the Time domain_c. Time unit T_cOr can pass through T_c＝1/(Δf_max·N_f) It is given. Δ f_maxThe maximum value of the subcarrier spacing supported in the radio communication system according to the aspect of the present embodiment may be used. Δ f_maxMay be Δ f_max＝480kHz。N_fOr may be N_f4096. The constant k is k ═ Δ f_max·N_f/(Δf_refN_f，ref)＝64。Δf_refOr may be 15 kHz. N is a radical of_f，refOr 2048.

The constant k may also represent the reference subcarrier spacing and T_cThe value of the relationship of (1). The constant k may also be used for the length of the subframe. The number of slots contained in a subframe may also be given based at least on the constant k. Δ f_refIs the reference subcarrier spacing, N_f，refIs a value corresponding to the reference subcarrier spacing.

Downlink transmission and/or uplink transmission are made up of 10ms frames. The frame includes 10 subframes. The length of the subframe is 1 ms. The length of the frame may also be given independently of the subcarrier spacing Δ f. In other words, the setting of the frame can also be given independently of μ. The length of the subframe may also be given independently of the subcarrier spacing Δ f. In other words, the setting of the subframe may also be given independently of μ.

The number of slots and the index included in the subframe may be given for setting μ for a certain subcarrier interval. For example, the first slot number n^μ _sMay also be 0 to N within a subframe^subframe,μ _slotThe ranges of-1 are given in ascending order. The number of slots and the index included in the frame may be given for setting μ of the subcarrier interval. For example, the second slot number n^μ _s，fOr may be between 0 and N within a frame^frame,μ _slotThe ranges of-1 are given in ascending order. Continuous N^slot _symbOne OFDM symbol may also be included in one slot. N is a radical of^slot _symbIt may also be given based on at least a part or all of slot configuration (slot configuration) and/or CP (Cyclic Prefix) configuration. The time slot setting may also be given by at least the upper layer parameter tdd-UL-DL-configuration common. CP settings may also be given based at least on upper layer parameters. The CP settings may also be given based at least on dedicated RRC signaling. The first slot number and the second slot number are also referred to as slot numbers (slot indexes).

FIG. 2 shows N in one embodiment of the present embodiment^slot _symbAn example of the relationship among the subcarrier spacing setting μ, the slot setting, and the CP setting. In fig. 2A, when the slot is set to 0, the subcarrier interval is set to μ 2, and the CP is set to normal CP (normal cyclic prefix), N^slot _symb＝14，N^frame,μ _slot＝40，N^subframe,μ _slot4. In fig. 2B, when the slot is set to 0, the subcarrier interval is set to μ 2, and the CP is set to extended Cyclic Prefix (CP), N is^slot _symb＝12，N^frame,μ _slot＝40，N^subframe,μ _slot4. N with time slot set to 0^slot _symbN may be set to 1 with the time slot^slot _symbCorresponding to 2 times.

Hereinafter, the physical resources will be described.

An antenna port is defined by the fact that the channel in one antenna port that conveys a symbol can be estimated from the channel in the same antenna port that conveys other symbols. In case the large scale property (large scale property) of the channel for transferring symbols in one antenna port can be estimated from the channel for transferring symbols in the other antenna port, both antenna ports are called QCL (Quasi Co-Located: Quasi Co-Located). The large scale characteristics may also include at least long span characteristics of the channel. The large-scale characteristics may also include at least a portion or all of delay spread (delay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), average gain (average gain), average delay (average delay), and beam parameters (spatial Rx parameters). With respect to the beam parameters, the first antenna port and the second antenna port being QCL may also mean that a reception beam assumed by the reception side with respect to the first antenna port is the same as a reception beam assumed by the reception side with respect to the second antenna port. With respect to the beam parameters, the first antenna port and the second antenna port being QCL may mean that a transmission beam assumed by the receiving side with respect to the first antenna port is the same as a transmission beam assumed by the receiving side with respect to the second antenna port. The terminal apparatus 1 may also assume that the two antenna ports are QCLs in a case where a large-scale characteristic of a channel for transferring symbols in one antenna port can be estimated from a channel for transferring symbols in the other antenna port. The two antenna ports are QCLs may also refer to assuming that the two antenna ports are QCLs.

N is given for setting the subcarrier spacing and the carrier setting, respectively^μ _RB，xN^RB _scSub-carriers and N^(μ) _symbN^subframe,μ _symbA resource grid of OFDM symbols. N is a radical of^μ _RB，xThe number of resource blocks given for setting μ for the subcarrier spacing of the carrier x may also be indicated. N is a radical of^μ _RB，xThe maximum number of resource blocks may be given for setting μ for the subcarrier spacing of the carrier x. The carrier x represents either a downlink carrier or an uplink carrier. In other words, x is "DL" or "UL". N is a radical of^μ _RBIs composed of N^μ _RB，DLAnd/or N^μ _RB，ULIs called. N is a radical of^RB _scThe number of subcarriers included in one resource block may be represented. At least one resource grid may be given per antenna port p and/or per subcarrier spacing setting μ and/or per Transmission direction (Transmission direction) setting. The transmission direction includes at least a DownLink (DL) and an UpLink (UL). Hereinafter, a set of parameters including at least a part or all of the antenna port p, the subcarrier spacing setting μ, and the transmission direction setting is also referred to as a first radio parameter set. In other words, the resource grid may also be given one per first set of radio parameters.

In the downlink, a carrier included in a serving cell is referred to as a downlink carrier (or a downlink component carrier). In the uplink, a carrier included in the serving cell is referred to as an uplink carrier (uplink component carrier). Downlink component carriers and uplink component carriers are collectively referred to as component carriers (or carriers).

The elements in the resource grid given per first set of radio parameters are called resource elements. The resource elements passing through the frequency domainIndex k_scAnd index l of time domain_symTo be determined. For a certain first set of radio parameters, the resource elements pass the index k of the frequency domain_scAnd index l of time domain_symTo be determined. By index k in the frequency domain_scAnd index l of time domain_symThe determined resource elements are called resource elements (k)_sc，l_sym). Index k of frequency domain_scRepresents 0 to N^μ _RBN^RB _sc-1 or a value of any of the above. N is a radical of^μ _RBThe number of resource blocks may be given for setting μ of the subcarrier spacing. N is a radical of^RB _scIs the number of subcarriers, N, contained in a resource block^RB _sc12. Index k of frequency domain_scOr with the subcarrier index k_scAnd (7) corresponding. Index l of time domain_symOr with the OFDM symbol index/_symAnd (7) corresponding.

Fig. 3 is a schematic diagram showing an example of a resource grid of a subframe according to an aspect of the present embodiment. In the resource grid of FIG. 3, the horizontal axis represents the index l of the time domain_symThe vertical axis is the index k of the frequency domain_sc. In one subframe, the frequency domain of the resource grid includes N^μ _RBN^RB _scAnd (4) sub-carriers. In one subframe, the time domain of the resource grid may also include 14 · 2^μOne OFDM symbol. One resource block includes N^RB _scSub-carriers. The time domain of a resource block may also correspond to 1 OFDM symbol. The time domain of a resource block may also correspond to 14 OFDM symbols. The time domain of a resource block may also correspond to one or more slots. The time domain of a resource block may also correspond to one subframe.

The terminal apparatus 1 may be instructed to transmit and receive using only a subset of the resource grid. A subset of the resource grid is also referred to as BWP, which may also be given based at least on upper layer parameters and/or part or all of the DCI. BWP is also called bandwidth part (BP: bandwidth part). In other words, the terminal apparatus 1 may not be instructed to transmit and receive using all sets of the resource grid. In other words, the terminal apparatus 1 may be instructed to transmit and receive using a part of the frequency resources in the resource grid. One BWP may be configured by a plurality of resource blocks in the frequency domain. One BWP may be formed of a plurality of resource blocks contiguous in the frequency domain. The BWP set with respect to the downlink carrier is also referred to as downlink BWP. The BWP set with respect to the uplink carrier is referred to as an uplink BWP.

One or more downlink BWPs may also be set with respect to the terminal apparatus 1. The terminal device 1 may also attempt reception of a physical channel (e.g., PDCCH, PDSCH, SS/PBCH, etc.) in one of the one or more downlink BWPs. This one downlink BWP is also referred to as an active downlink BWP.

One or more uplink BWPs may also be set with respect to the terminal apparatus 1. The terminal apparatus 1 may attempt transmission of a physical channel (for example, PUCCH, PUSCH, PRACH, or the like) in one uplink BWP of the one or more uplink BWPs. The one uplink BWP is also referred to as an active uplink BWP.

A set of downlink BWPs may also be set for each serving cell. The set of downlink BWPs may also include one or more downlink BWPs. A set of uplink BWPs may also be set for each serving cell. The set of uplink BWPs may also include one or more uplink BWPs.

The upper layer parameter is a parameter included in a signal of the upper layer. The upper layer signal may also be RRC (Radio Resource Control) signaling or MAC CE (Medium Access Control Element). Here, the signal of the upper layer may be a signal of the RRC layer or a signal of the MAC layer.

The signal of the upper layer may also be common RRC signaling (common RRC signaling). The common RRC signaling may include at least a part or all of the following features C1 to C3.

Feature C1) to be mapped to either a BCCH logical channel or a CCCH logical channel

Feature C2) comprises at least a radioResourceConfigCommon information element

Feature C3) to PBCH

The radioResourceConfigCommon information element may include information indicating a setting for common use in the serving cell. The setting for common use in the serving cell may include at least setting of PRACH. The setting of the PRACH may also indicate at least one or more random access preamble indices. The setting of the PRACH may indicate at least a time/frequency resource of the PRACH.

The signal of the upper layer may also be dedicated RRC signaling (dedicated RRC signaling). The dedicated RRC signaling may have at least a part or all of the following features D1 to D2.

Feature D1) to DCCH logical channels

Feature D2) comprises at least a radioResourceConfigDedicated information element

The radioResourceConfigDedicated information element may include at least information indicating a setting unique to the terminal apparatus 1. The radioResourceConfigDedicated information element may include at least information indicating the setting of BWP. The BWP setting may also indicate at least the frequency resource of the BWP.

For example, the MIB, the first system information, and the second system information may also be included in the common RRC signaling. In addition, messages mapped to DCCH logical channels and including at least a radio resource configcommon upper layer may also be included in the common RRC signaling. In addition, a message of an upper layer mapped to a DCCH logical channel and not including a radioResourceConfigCommon information element may also be included in the dedicated RRC signaling. In addition, a message of an upper layer mapped to a DCCH logical channel and including at least a radioResourceConfigDedicated information element may also be included in the dedicated RRC signaling.

The first system information may also indicate at least a time index of an SS (Synchronization Signal) block. The SS block (SS block) is also referred to as a SS/PBCH block (SS/PBCH block). The SS/PBCH block is also referred to as SS/PBCH. The first system information may also include at least information related to PRACH resources. The first system information may also include at least information related to the setting of the initial connection. The second system information may be system information other than the first system information.

The radioResourceConfigDedicated information element may also include at least information related to PRACH resources. The radioResourceConfigDedicated information element may also include at least information related to setting of the initial connection.

Hereinafter, a physical channel and a physical signal according to various embodiments of the present embodiment will be described.

The uplink physical channel may also correspond to a set of resource elements carrying information generated in an upper layer. The uplink physical channel is a physical channel used in an uplink carrier. In the radio communication system according to one aspect of the present embodiment, at least a part or all of the following uplink physical channels are used.

PUCCH (Physical Uplink Control CHannel: Physical Uplink Control CHannel)

PUSCH (Physical Uplink Shared CHannel)

PRACH (Physical Random Access CHannel)

The PUCCH may also be used to transmit Uplink Control Information (UCI). The uplink Control Information includes a part or all of HARQ-ACK (Hybrid Automatic Repeat Request ACKnowledgement) corresponding to Channel State Information (CSI), a Scheduling Request (SR), a Transport Block (TB), a MAC PDU (Medium Access Control Protocol Data Unit), DL-SCH: Downlink-Shared Channel (DL-SCH), and PDSCH: Physical Downlink Shared Channel (PDSCH)).

The HARQ-ACK may also include at least HARQ-ACK bits corresponding to at least one transport block. The HARQ-ACK bit may also indicate ACK (acknowledgement) or NACK (negative-acknowledgement) corresponding to one or more transport blocks. The HARQ-ACK may also include at least a HARQ-ACK codebook including one or more HARQ-ACK bits. The HARQ-ACK bits corresponding to one or more transport blocks may also mean that the HARQ-ACK bits correspond to a PDSCH including the one or more transport blocks.

The HARQ-ACK bit may also indicate ACK or NACK corresponding to one CBG (Code Block Group) included in the transport Block. HARQ-ACK is also referred to as HARQ feedback, HARQ information, HARQ control information.

A Scheduling Request (SR) may also be used at least for requesting resources for the initially transmitted PUSCH. The scheduling request bit may also be used to indicate either a positive sr (positive sr) or a negative sr (negative sr). The scheduling request bit indicates a positive SR is also referred to as a "transmission positive SR". The positive SR may also indicate that the terminal apparatus 1 requests resources of the PUSCH for initial transmission. A positive SR may also indicate that a scheduling request is triggered by an upper layer. The positive SR may be transmitted when a scheduling request is instructed to be transmitted by an upper layer. The scheduling request bit indicates a negative SR is also referred to as "transmitting a negative SR". The negative SR may also indicate that no resource for PUSCH for initial transmission is requested by the terminal apparatus 1. A negative SR may also indicate that the scheduling request is not triggered by the upper layer. The negative SR may be transmitted without an instruction to transmit a scheduling request through an upper layer.

The Channel state information may include at least a part or all of a Channel Quality Indicator (CQI), a Precoding Matrix Indicator (PMI), and a Rank Indicator (RI). The CQI is an indicator related to the quality (e.g., transmission strength) of the channel, and the PMI is an indicator indicating precoding. The RI is an indicator indicating a transmission rank (or the number of transmission layers).

PUCCH supports PUCCH formats (PUCCH format 0 to PUCCH format 4). The PUCCH format may be mapped to the PUCCH and transmitted. The PUCCH format may also be transmitted through PUCCH. Transmitting the PUCCH format may also refer to transmitting the PUCCH.

The PUSCH is used at least for transmitting transport blocks (TB, MAC PDU, UL-SCH, PUSCH). The PUSCH may also be used to transmit at least some or all of the transport blocks, HARQ-ACKs, channel state information, and scheduling requests. The PUSCH is used at least for transmitting random access message 3.

The PRACH is used at least for transmitting a random access preamble (random access message 1). The PRACH may also be used to represent at least a part or all of an initial connection establishment (initialization) procedure, a handover procedure, a connection re-establishment (connection re-initialization) procedure, synchronization (timing adjustment) with respect to transmission of the PUSCH, and a request for resources of the PUSCH. The random access preamble may be used to notify the base station apparatus 3 of an index (random access preamble index) given by an upper layer of the terminal apparatus 1.

In fig. 1, the following uplink physical signals are used in uplink wireless communication. The uplink physical signal may be used by the physical layer without being used to transmit information output from the upper layer.

UL DMRS (UpLink Demodulation Reference Signal: Reference Signal for UpLink Demodulation)

SRS (Sounding Reference Signal)

UL PTRS (UpLink Phase Tracking Reference Signal: UpLink Phase Tracking Reference Signal)

The UL DMRS is related to transmission of PUSCH and/or PUCCH. The UL DMRS is multiplexed to the PUSCH or PUCCH. The base station apparatus 3 may use the UL DMRS for the purpose of performing transmission path correction of the PUSCH or PUCCH. Hereinafter, the PUSCH and the UL DMRS associated with the PUSCH are transmitted together will be simply referred to as a transmission PUSCH. Hereinafter, the transmission of the PUCCH together with the UL DMRS related to the PUCCH will be simply referred to as a transmission PUCCH. The UL DMRS related to PUSCH is also referred to as UL DMRS for PUSCH. The UL DMRS related to PUCCH is also referred to as UL DMRS for PUCCH.

The SRS may not be related to transmission of the PUSCH or PUCCH. Base station apparatus 3 may use SRS for the measurement of the channel state. The SRS may also be transmitted in the last or a prescribed amount of OFDM symbols from the last subframe of the uplink slot.

The UL PTRS may also be a reference signal used at least for phase tracking. The UL PTRS may also be related to an UL DMRS group that includes at least antenna ports for one or more UL DMRSs. The association of the UL PTRS with the UL DMRS group may also mean that the antenna ports of the UL PTRS and a part or all of the antenna ports included in the UL DMRS group are at least QCL. The UL DMRS group may also be identified based on at least an antenna port of a smallest index among UL DMRSs included in the UL DMRS group. The UL PTRS may also map to an antenna port having a smallest index among the one or more antenna ports to which one codeword is mapped. The UL PTRS may also be mapped to at least a first layer and a second layer in case one codeword is mapped to the first layer. The UL PTRS may not be mapped to the second layer. An index of an antenna port to which the UL PTRS is mapped may also be given based on at least the downlink control information.

In fig. 1, the following downlink physical channels are used in downlink radio communication from the base station apparatus 3 to the terminal apparatus 1. The downlink physical channel is used by the physical layer to transmit information output from the upper layer.

PBCH (Physical Broadcast Channel)

PDCCH (Physical Downlink Control Channel)

PDSCH (Physical Downlink Shared Channel)

The PBCH is used to transmit at least a Master Information Block (MIB). The PBCH may also be transmitted based on a prescribed transmission interval. The PBCH may also be transmitted at intervals of 80 ms. The PBCH may also be transmitted at intervals of 160 ms. The content of the information contained in the PBCH may also be updated every 80 ms. A part or all of the information contained in the PBCH may be updated every 160 ms. The PBCH may also be composed of 288 subcarriers. The PBCH may also be comprised of 2, 3, or 4 OFDM symbols. The MIB may also include information related to an identifier (index) of the synchronization signal. The MIB may also include information indicating at least a portion of a number of slots, a number of subframes, and/or a number of radio frames in which the PBCH is transmitted.

The PDCCH is used at least for transmission of Downlink Control Information (DCI). The PDCCH may be transmitted including at least downlink control information. The PDCCH may also include downlink control information. The downlink control information is also referred to as a DCI format. The downlink control information may include at least either a downlink grant (downlink grant) or an uplink grant (uplink grant). The DCI format for scheduling of the PDSCH is also referred to as a downlink DCI format. The DCI format for scheduling of PUSCH is also referred to as an uplink DCI format. The downlink grant is also called a downlink assignment (downlink assignment) or downlink allocation (downlink allocation).

In various embodiments of the present embodiment, the number of resource blocks indicates the number of resource blocks in the frequency domain unless otherwise specified.

The downlink grant is used for scheduling of at least one PDSCH within one serving cell.

The uplink grant is used for scheduling of at least one PUSCH within one serving cell.

One physical channel may also be mapped to one serving cell. A physical channel may also be mapped to a BWP set for a carrier included in a serving cell.

The terminal device 1 may also be configured with one or more COntrol REsource SETs (CORESET). The terminal apparatus 1 monitors (monitor) the PDCCH in one or a plurality of control resource sets. Here, monitoring the PDCCH in one or more control resource sets may also include monitoring one or more PDCCHs corresponding to the one or more control resource sets, respectively. Furthermore, the PDCCH may also include one or more PDCCH candidates and/or a set of PDCCH candidates. Monitoring the PDCCH may include monitoring and detecting the PDCCH and/or a DCI format transmitted via the PDCCH.

The control resource set may also represent a time-frequency domain to which one or more PDCCHs may be mapped. The control resource set may be a region in which the terminal apparatus 1 monitors the PDCCH. The control resource set may also be composed of contiguous resources (Localized resources). The control resource set may also be composed of non-contiguous resources (distributed resources).

In the frequency domain, the unit of mapping of the control resource set may be a resource block. For example, in the frequency domain, the unit of mapping of the control resource set may be 6 resource blocks. In the time domain, the unit of mapping of the control resource set may also be an OFDM symbol. For example, in the time domain, the unit of mapping of the control resource set may be 1 OFDM symbol.

The mapping of the control resource set to resource blocks may also be given based at least on upper layer parameters. The higher layer parameters may also include a bitmap for a Group of Resource Blocks (RBG). The group of resource blocks may also be given by 6 consecutive resource blocks.

The number of OFDM symbols constituting the control resource set may also be given based on at least an upper layer parameter.

A certain control resource set may also be a Common control resource set. The common control resource set may be a control resource set that is set in common for a plurality of terminal apparatuses 1. The common set of control resources may also be given based on at least the MIB, the first system information, the second system information, the common RRC signaling, and a portion or all of the cell ID. For example, time resources and/or frequency resources setting a control resource set for monitoring a PDCCH for scheduling of first system information may also be given based on at least the MIB.

The set of control resources set by the MIB is also referred to as CORESET # 0. CORESET #0 may also be the control resource set for index # 0.

A certain control resource set may also be a Dedicated control resource set (Dedicated control resource set). The dedicated control resource set may be a control resource set for use exclusively for the terminal apparatus 1. The dedicated control resource set may also be given based at least on dedicated RRC signaling and part or all of the value of C-RNTI.

The set of PDCCH candidates monitored by the terminal apparatus 1 may be defined from the viewpoint of the search area. In other words, the set of PDCCH candidates monitored by the terminal apparatus 1 may be given by the search region.

The search region may include PDCCH candidates of one or more Aggregation levels (Aggregation levels). The aggregation level of a PDCCH candidate may indicate the number of CCEs constituting the PDCCH. PDDCH candidates may also be mapped to one or more CCEs.

The terminal apparatus 1 may monitor at least one or a plurality of search areas in a time slot in which DRX (Discontinuous reception) is not set. DRX may also be given based at least on upper layer parameters. The terminal apparatus 1 may monitor at least one or a plurality of Search space sets (Search space sets) in a time slot in which DRX is not set.

The search area set may include at least one or more search areas.

The exploration area sets may each also be associated with at least one set of control resources. Each of the exploration area sets may also be included in one control resource set. The index of the set of control resources associated with the set of search areas may also be given separately with respect to the set of search areas.

The physical resource of the search area is composed of a Control Channel Element (CCE) that is a structural unit of a Control Channel. A CCE is composed of a predetermined number of Resource Element Groups (REGs). For example, a CCE may also consist of 6 REGs. The REG may also consist of 1 OFDM symbol of one PRB (Physical Resource Block). In other words, the REG may also be composed of 12 Resource Elements (REs). PRB is abbreviated as RB (Resource Block: Resource Block).

The PDSCH is used at least for transmitting transport blocks. The PDSCH may also be used at least for transmitting random access message 2 (random access response). The PDSCH may also be used at least for transmitting system information including parameters for initial access.

In fig. 1, the following downlink physical signals are used for downlink wireless communication. The downlink physical signal may not be used for transmitting information output from the upper layer, but may be used by the physical layer.

Synchronous Signal (SS)

DL DMRS (DownLink DeModulation Reference Signal: Reference information for DownLink DeModulation)

CSI-RS (Channel State Information-Reference Signal: Channel State Information Reference Signal)

DL PTRS (DownLink Phase Tracking Reference Signal: Downlink Phase Tracking Reference Signal)

The synchronization signal is used for the terminal apparatus 1 to acquire synchronization in the frequency domain and/or the time domain of the downlink. The Synchronization signals include a PSS (Primary Synchronization Signal) and an SSS (Secondary Synchronization Signal).

The SS block (SS/PBCH block) includes at least a part or all of the PSS, SSs, and PBCH.

The DL DMRS is related to transmission of PBCH, PDCCH, and/or PDSCH. The DL DMRS is multiplexed to the PBCH, PDCCH, and/or PDSCH. The terminal device 1 may use a DL DMRS corresponding to the PBCH, the PDCCH, or the PDSCH in order to correct the transmission channel of the PBCH, the PDCCH, or the PDSCH.

The CSI-RS may also be a signal used at least for calculating channel state information. The type of CSI-RS assumed by the terminal device may also be given by at least upper layer parameters.

The PTRS may also be a signal used at least for compensation of phase noise. The type of PTRS assumed by the terminal device may also be given based on at least the upper layer parameter and/or DCI.

The DL PTRS may also be related to a DL DMRS group that includes at least antenna ports used by one or more DL DMRSs.

The downlink physical channel and the downlink physical signal are also referred to as a downlink signal. The uplink physical channel and the uplink physical signal are also referred to as an uplink signal. Downlink signals and uplink signals are also collectively referred to as physical signals. Downlink signals and uplink signals are also collectively referred to as signals. The downlink physical channel and the uplink physical channel are generically referred to as physical channels. The downlink physical signals and the uplink physical signals are generically referred to as physical signals.

BCH (broadcast CHannel), UL-SCH (Uplink-Shared CHannel), and DL-SCH (Downlink-Shared CHannel) are transport channels. A channel used in a Medium Access Control (MAC) layer is called a transport channel. The unit of the transport channel used in the MAC layer is called a Transport Block (TB) or a MAC PDU. In the MAC layer, HARQ (Hybrid Automatic Repeat reQuest) control is performed for each transport block. The transport block may be a unit of data transferred (delivery) from the MAC layer to the physical layer. In the physical layer, a transport block is mapped to a codeword, and modulation processing is performed for each codeword.

The base station apparatus 3 and the terminal apparatus 1 exchange (transmit/receive) signals of an upper layer (higher layer) in the upper layer. For example, the base station apparatus 3 and the terminal apparatus 1 may transmit and receive RRC signaling (Radio Resource Control message, RRC information) in a Radio Resource Control (RRC) layer. The base station apparatus 3 and the terminal apparatus 1 may transmit and receive a MAC CE (Control Element) in the MAC layer. Here, RRC signaling and/or MAC CE is also referred to as a higher layer signaling (higher layer signaling).

The PUSCH and PDSCH may also be used at least for transmitting RRC signaling and/or MAC CE. Here, the RRC signaling transmitted by the PDSCH from the base station apparatus 3 may be a signaling common to a plurality of terminal apparatuses 1 in the serving cell. The signaling shared by the plurality of terminal apparatuses 1 in the serving cell is referred to as shared RRC signaling. The RRC signaling transmitted from the base station apparatus 3 via the PDSCH may be a signaling (referred to as "dedicated signaling" or "UE specific signaling") dedicated to a certain terminal apparatus 1. The signaling dedicated to the terminal apparatus 1 is also referred to as dedicated RRC signaling. The higher layer parameter specific to the serving cell may be transmitted using a signaling common to a plurality of terminal apparatuses 1 in the serving cell or a signaling dedicated to a certain terminal apparatus 1. The UE-specific higher layer parameters may be transmitted using signaling dedicated to a certain terminal apparatus 1.

BCCH (Broadcast Control CHannel), CCCH (Common Control CHannel), and DCCH (Dedicated Control CHannel) are logical channels. For example, the BCCH is a channel of an upper layer for transmitting MIB. Ccch (common Control channel) is a channel of an upper layer for transmitting information common to a plurality of terminal apparatuses 1. Here, CCCH may be used for terminal apparatus 1 without RRC connection, for example. The dcch (decoded Control channel) is a channel of an upper layer used for transmitting at least Control information (decoded Control information) dedicated to the terminal apparatus 1. Here, the DCCH may be used for the RRC-connected terminal apparatus 1, for example.

The BCCH of the logical channel may also be mapped to BCH, DL-SCH or UL-SCH in the transport channel. The CCCH of the logical channel may also be mapped to the DL-SCH or UL-SCH in the transport channel. The DCCHs of the logical channels may also be mapped to DL-SCH or UL-SCH in transport channels.

The UL-SCH of the transport channel may also be mapped to the PUSCH in the physical channel. The DL-SCH of a transport channel may also be mapped to the PDSCH in the physical channel. The BCH of the transport channel may also be mapped to the PBCH in the physical channel.

Hereinafter, a configuration example of the terminal device 1 according to one aspect of the present embodiment will be described.

Fig. 4 is a schematic block diagram showing the configuration of the terminal device 1 according to one embodiment of the present embodiment. As shown in the figure, the terminal device 1 includes a radio transmitting/receiving unit 10 and an upper layer processing unit 14. The Radio transmitting/receiving unit 10 includes at least a part or all of an antenna unit 11, an RF (Radio Frequency) unit 12, and a baseband unit 13. The higher layer processing unit 14 includes at least a part or all of the medium access control layer processing unit 15 and the radio resource control layer processing unit 16. The radio transmission/reception unit 10 is also referred to as a transmission unit, a reception unit, or a physical layer processing unit.

The higher layer processing unit 14 outputs uplink data (transport block) generated by a user operation or the like to the radio transmitting/receiving unit 10. The upper layer processing unit 14 performs processing of an MAC layer, a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, and an RRC layer.

The MAC layer processing unit 15 included in the higher layer processing unit 14 performs MAC layer processing.

The radio resource control layer processing unit 16 included in the higher layer processing unit 14 performs processing in the RRC layer. The radio resource control layer processing section 16 manages various setting information and parameters of the own apparatus. The radio resource control layer processing unit 16 sets various setting information and parameters based on the signal of the higher layer received from the base station apparatus 3. That is, the radio resource control layer processing section 16 sets various setting information/parameters based on information indicating the various setting information/parameters received from the base station apparatus 3. In addition, the setting information may also include information related to processing or setting of a physical channel, a physical signal (in other words, a physical layer), a MAC layer, a PDCP layer, an RLC layer, and an RRC layer. The parameter may be an upper layer parameter.

The radio transceiver unit 10 performs physical layer processing such as modulation, demodulation, encoding, and decoding. The radio transceiver unit 10 outputs information obtained by demultiplexing, demodulating, and decoding the received physical signal to the upper layer processing unit 14. The radio transceiver unit 10 generates a physical signal by modulating and encoding data and generating a baseband signal (converting the signal into a time-continuous signal), and transmits the physical signal to the base station apparatus 3.

The RF unit 12 converts (down converts) the signal received via the antenna unit 11 into a baseband signal by quadrature demodulation, and removes unnecessary frequency components. The RF unit 12 outputs the processed analog signal to the baseband unit.

The baseband unit 13 converts an analog signal input from the RF unit 12 into a digital signal. The baseband section 13 removes a portion corresponding to CP (cyclic prefix) from the converted digital signal, and performs Fast Fourier Transform (FFT) on the CP-removed signal to extract a signal in the frequency domain.

The baseband unit 13 performs Inverse Fast Fourier Transform (IFFT) on the data to generate an OFDM symbol, adds a CP to the generated OFDM symbol to generate 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.

The RF unit 12 removes an unnecessary frequency component from the analog signal input from the baseband unit 13 using a low-pass filter, up-converts (up convert) the analog signal to a carrier frequency, and transmits the carrier frequency via the antenna unit 11. In addition, the RF unit 12 amplifies power. The RF unit 12 may also have a function of controlling transmission power. The RF unit 12 is also referred to as a transmission power control unit.

Hereinafter, a configuration example of the base station apparatus 3 according to one aspect of the present embodiment will be described.

Fig. 5 is a schematic block diagram showing the configuration of the base station apparatus 3 according to one aspect of the present embodiment. As shown in the drawing, the base station apparatus 3 includes a radio transceiver unit 30 and an upper layer processing unit 34. The radio transmitting/receiving unit 30 includes an antenna unit 31, an RF unit 32, and a baseband unit 33. The upper layer processing unit 34 includes a medium access control layer processing unit 35 and a radio resource control layer processing unit 36. The radio transmission/reception unit 30 is also referred to as a transmission unit, a reception unit, or a physical layer processing unit.

The upper layer processing unit 34 performs processing in the MAC layer, PDCP layer, RLC layer, and RRC layer.

The MAC layer processing unit 35 included in the higher layer processing unit 34 performs MAC layer processing.

The radio resource control layer processing unit 36 included in the higher layer processing unit 34 performs processing in the RRC layer. The radio resource control layer processing unit 36 generates or acquires downlink data (transport block) mapped on the PDSCH, system information, RRC message, MAC CE, and the like from an upper node, and outputs the same to the radio transmitting/receiving unit 30. The radio resource control layer processing unit 36 manages various setting information and parameters for each terminal device 1. The radio resource control layer processing unit 36 may set various setting information and parameters for each terminal device 1 via a signal of an upper layer. That is, the radio resource control layer processing section 36 transmits and reports information indicating various setting information and parameters. In addition, the setting information may also include information related to processing or setting of a physical channel, a physical signal (in other words, a physical layer), a MAC layer, a PDCP layer, an RLC layer, and an RRC layer. The parameter may be an upper layer parameter.

The function of the wireless transmission/reception unit 30 is the same as that of the wireless transmission/reception unit 10, and therefore, the description thereof is omitted.

Each of the portions denoted by reference numerals 10 to 16 included in the terminal device 1 may be configured as a circuit. Each of the portions denoted by reference numerals 30 to 36 included in the base station apparatus 3 may be configured as a circuit.

Terminal device 1 may multiplex Uplink Control Information (UCI) to the PUCCH and transmit the same. The terminal apparatus 1 may multiplex UCI to PUSCH and transmit the UCI. The UCI may also include HARQ-ACK and/or CSI.

A plurality of PUSCH types may also be defined based on the type of data (UCI, UL-SCH) that has been multiplexed to the PUSCH before multiplexing UCI related to the PUCCH to the PUSCH. For example, at least aperiodic CSI on PUSCH, semi-persistent CSI on PUSCH, dynamically scheduled PUSCH, and quasi-statically scheduled PUSCH may be defined. Aperiodic CSI is also known as aperiodic CSI. Semi-persistent CSI is also referred to as semi-persistent CSI. In this embodiment, the dynamically scheduled PUSCH does not include random access message 3.

The PUSCH for aperiodic CSI is a PUSCH for multiplexing aperiodic CSI. Aperiodic CSI is a channel state information report that is made aperiodically (aperiodic). Aperiodic channel state information reporting may also be indicated based at least on the DCI format. The aperiodic CSI report may be indicated based on at least a prescribed value set at a code point of a CSI request field included in the DCI format.

The PUSCH for the semi-persistent CSI is referred to as a PUSCH for multiplexing UCI for the semi-persistent CSI. Semi-persistent CSI is a channel state information report that is made semi-persistently (semi-persistent). The terminal apparatus 1 checks whether or not the following request conditions are partially or entirely satisfied with respect to activation or deactivation of the semi-persistent CSI report using the PUSCH. That is, the semi-persistent CSI report using the PUSCH is activated using at least the DCI format.

Condition a 1: the DCI format is scrambled by an SP-CSI-RNTI given by an upper layer parameter SP-CSI-RNTI

Condition a 2: the specific DCI format field for activation of semi-persistent CSI is set to a prescribed value representing activation of semi-persistent CSI

Condition a 3: the specific DCI format field for the inactivity of the semi-persistent CSI is set to a prescribed value representing the inactivity of the semi-persistent CSI

The transmission of the semi-persistent CSI may also be activated if the condition a1 and the condition a2 are simultaneously satisfied. The transmission of the semi-persistent CSI may also be inactivated if the condition a1 and the condition A3 are simultaneously satisfied.

The dynamically scheduled PUSCH is dynamically scheduled with an uplink grant (UL grant) of a DCI format. The PUSCH may also include transport blocks. The dynamically scheduled PUSCH may also be a PUSCH that is scheduled based on a DCI format and is not indicated for aperiodic CSI based on the DCI format.

The quasi-statically scheduled PUSCH scheduled by a grant trigger (grant trigger) is a PUSCH in which PUSCH resources are quasi-statically allocated according to upper layer parameters and a transport block is transmitted. The quasi-statically scheduled PUSCH may also include a quasi-statically scheduled PUSCH of type 1 and a quasi-statically scheduled PUSCH of type 2. For quasi-statically scheduled PUSCH of type 1, transmission in the time domain may also be indicated by the upper layer parameter timedomainailocation. Quasi-statically scheduled PUSCH of type 2 may also be triggered by an uplink grant of DCI format. The transmission interval (periodicity) of the PUSCH for quasi-static scheduling may also be given based on parameters of an upper layer.

When the PUCCH does not collide with the PUSCH (overlap) in the time domain, terminal apparatus 1 may multiplex UCI related to the PUCCH and transmit the UCI. When the PUCCH collides with the PUSCH in the time domain (overlap), terminal apparatus 1 may multiplex UCI related to the PUCCH to the PUSCH and transmit the UCI, and may not transmit the PUCCH. The PUCCH may be a PUCCH to which transmission of the UCI is set. The transmission of the UCI may also be given based on at least the DCI format and/or upper layer parameters.

The UCI related to the PUCCH does not include aperiodic CSI. UCI related to PUCCH does not include semi-persistent CSI reported by DCI format activation.

When the aperiodic CSI PUSCH and the dynamically scheduled PUSCH collide with the PUCCH in the time domain, the terminal apparatus 1 may multiplex the UCI related to the PUCCH to the aperiodic CSI PUSCH and transmit the result.

When the aperiodic CSI PUSCH and the quasi-statically scheduled PUSCH collide with the PUCCH in the time domain, the terminal apparatus 1 may multiplex the UCI related to the PUCCH to the aperiodic CSI PUSCH and transmit the result.

When the dynamically scheduled PUSCH and the quasi-statically scheduled PUSCH collide with the PUCCH in the time domain, the terminal apparatus 1 may multiplex UCI related to the PUCCH to the dynamically scheduled PUSCH and transmit the result.

When a plurality of PUSCHs (sets of PUSCHs) collide with a PUCCH in the time domain, a PUSCH to which UCI is multiplexed may be given based on at least an index of a serving cell to which each of the plurality of PUSCHs is mapped and/or a starting position (starting position) of each of the plurality of PUSCHs. For example, when a plurality of PUSCHs of the same PUSCH type collide with the PUCCH in the time domain and the plurality of PUSCHs are used for a plurality of serving cells, the terminal apparatus 1 may multiplex UCI related to the PUCCH to the PUSCH of the serving cell having a low value of the serving cell identifier and transmit the same. When transmitting a plurality of PUSCHs in the serving cell, the terminal apparatus 1 may multiplex UCI related to the PUCCH to the top PUSCH in the time domain among the plurality of PUSCHs in the serving cell and transmit the result.

Fig. 6 is a diagram showing a method for selecting a PUSCH for multiplexing UCI when one or more PUSCHs collide with a PUCCH in the time domain according to an aspect of the present embodiment.

For example, in the first example, when the PUCCH601 including the UCI collides with the PUSCH600 in the time domain, the terminal apparatus 1 may multiplex and transmit the UCI to the PUSCH 600. The PUSCH600 may be any of an aperiodic CSI PUSCH, a semi-persistent CSI on PUSCH, a dynamically scheduled PUSCH (dynamically scheduled PUSCH), and a quasi-statically scheduled PUSCH. The PUCCH including UCI may be a PUCCH for which transmission of UCI is set based on at least parameters of an upper layer. The PUCCH including the UCI may also be a PUCCH that indicates transmission of the UCI based on at least DCI.

In the second example, when the PUCCH612 including UCI collides with the PUSCH611 and the PUSCH610 for aperiodic CSI in the time domain, the terminal apparatus 1 may multiplex the UCI to the PUSCH611 for aperiodic CSI and transmit the same. PUSCH610 may also be any of dynamically scheduled PUSCH (dynamically scheduled PUSCH), quasi-statically scheduled PUSCH.

In the third example, when the PUCCH625 including UCI collides in the time domain with the First PUSCH group (First PUSCHs) including one or more dynamically scheduled PUSCHs 622, 623, and 624 and the Second PUSCH group (Second PUSCHs) including one or more quasi-statically scheduled PUSCHs 620 and 621, the terminal apparatus 1 may multiplex the UCI to one of the PUSCHs of the First PUSCH group and transmit the same.

In the fourth example, when PUCCH634 including UCI collides with a plurality of dynamically scheduled PUSCHs 630, 631, 632, and 633 in the time domain, terminal apparatus 1 may multiplex the UCI to PUSCH630 having a low serving cell identifier value and a high head in the time domain and transmit the UCI.

In the case where a PUCCH including UCI and one or more PUSCHs collide in the time domain, the PUSCH transmitted by multiplexing the UCI may be selected from the one or more PUSCHs based on at least whether the one or more PUSCHs are respectively PUSCH for semi-persistent CSI.

When the PUSCH for the semi-persistent CSI and the PUSCH for the aperiodic CSI and/or the dynamically scheduled PUSCH and/or the quasi-statically scheduled PUSCH collide with the PUCCH including the UCI in the time domain, the terminal apparatus 1 may multiplex and transmit the UCI to the PUSCH for the semi-persistent CSI. In the case where a set of the PUSCH for the semi-persistent CSI and the first PUSCH collides with a PUCCH including UCI in the time domain, the UCI may be multiplexed to the PUSCH for the semi-persistent CSI and transmitted. The set of first PUSCHs may also include at least a portion or all of one or more aperiodic CSI PUSCHs, one or more dynamically scheduled PUSCHs, and/or one or more quasi-statically scheduled PUSCHs. For example, when the PUSCH for the semi-persistent CSI and the PUSCH for the aperiodic CSI collide with the PUCCH including the UCI in the time domain, the UCI may be multiplexed on the PUSCH for the semi-persistent CSI and transmitted. In addition, when the PUSCH for the semi-persistent CSI and the dynamically scheduled PUSCH collide with the PUCCH including the UCI in the time domain, the UCI may be multiplexed on the PUSCH for the semi-persistent CSI and transmitted.

When the PUCCH including UCI collides with the PUSCH for the semi-persistent CSI and the PUSCH for the aperiodic CSI in the time domain, the terminal apparatus 1 may multiplex the UCI to the PUSCH for the aperiodic CSI and transmit the result. When the PUCCH including UCI collides with the PUSCH for the semi-persistent CSI and the PUSCH for the dynamic scheduling and/or the PUSCH for the quasi-static scheduling in the time domain, the terminal apparatus 1 may multiplex the UCI to the PUSCH for the semi-persistent CSI and transmit the result. In the case where the PUSCH for the semi-persistent CSI and the PUSCH for the aperiodic CSI collide with the PUCCH including the UCI in the time domain, the UCI may be multiplexed to the PUSCH for the aperiodic CSI and transmitted. In the case where a set of the PUSCH for the semi-persistent CSI and the second PUSCH collides with the PUCCH including the UCI in the time domain, the UCI may be multiplexed to the PUSCH for the semi-persistent CSI and transmitted. The set of second PUSCHs may also include at least a portion or all of one or more dynamically scheduled PUSCHs and/or one or more quasi-statically scheduled PUSCHs.

When the PUCCH including UCI collides with the PUSCH for the semi-persistent CSI and the PUSCH for the aperiodic CSI in the time domain, the terminal apparatus 1 may multiplex the UCI to the PUSCH for the aperiodic CSI and transmit the result. When the PUCCH including UCI collides with the PUSCH for the semi-persistent CSI and the PUSCH for the dynamic scheduling in the time domain, the terminal apparatus 1 may multiplex the UCI to the PUSCH for the dynamic scheduling and transmit the result. The PUCCH including UCI may be multiplexed into the PUSCH for semi-persistent CSI and transmitted when colliding with the PUSCH for semi-persistent CSI and the PUSCH for quasi-persistent scheduling in the time domain. In the case where a set of PUSCH for semi-persistent CSI and a third PUSCH collides with a PUCCH including UCI in the time domain, the UCI may be multiplexed to one PUSCH selected from the third PUSCH and transmitted. The third set of PUSCHs may also include at least a portion or all of one or more aperiodic CSI PUSCH and/or one or more dynamically scheduled PUSCH. For example, when the PUSCH for the semi-persistent CSI and the PUSCH for the aperiodic CSI collide with the PUCCH including the UCI in the time domain, the UCI may be multiplexed on the PUSCH for the aperiodic CSI and transmitted. For example, when the PUSCH for the semi-persistent CSI and the PUSCH for the dynamic scheduling collide with the PUCCH including the UCI in the time domain, the UCI may be multiplexed on the PUSCH for the dynamic scheduling and transmitted. Alternatively, in the case where the PUSCH for the semi-persistent CSI and the quasi-statically scheduled PUSCH collide with the PUCCH including the UCI in the time domain, the UCI may be multiplexed to the PUSCH for the semi-persistent CSI and transmitted.

When the PUCCH including UCI collides with the PUSCH for the semi-persistent CSI and the PUSCH for the aperiodic CSI in the time domain, the terminal apparatus 1 may multiplex the UCI to the PUSCH for the aperiodic CSI and transmit the result. When the PUCCH including UCI collides with the PUSCH for the semi-persistent CSI and the PUSCH for the dynamic scheduling in the time domain, the terminal apparatus 1 may multiplex the UCI to the PUSCH for the dynamic scheduling and transmit the result. When a PUCCH including UCI collides with a PUSCH for semi-persistent CSI and a PUSCH for quasi-persistent scheduling simultaneously in the time domain, the terminal apparatus 1 may multiplex the UCI to the PUSCH for quasi-persistent scheduling and transmit the result. In the case where a set of the PUSCH for the semi-persistent CSI and the fourth PUSCH collides with the PUCCH including the UCI in the time domain, the UCI may be multiplexed to one PUSCH selected from the set of the fourth PUSCH and transmitted. The set of fourth PUSCHs may also include at least a portion or all of one or more aperiodic CSI PUSCHs, one or more dynamically scheduled PUSCHs, and/or one or more quasi-statically scheduled PUSCHs.

When a PUCCH including UCI collides with the fifth PUSCH set in the time domain, the terminal apparatus 1 may multiplex and transmit the UCI to one PUSCH selected from the fifth PUSCH set. When a PUCCH including UCI collides with the set of fifth PUSCH and the set of sixth PUSCH in the time domain, the terminal apparatus 1 may multiplex and transmit the UCI to one PUSCH selected from the set of fifth PUSCH. The set of fifth PUSCHs may also include at least a portion or all of the one or more PUSCH for semi-persistent CSI and/or the one or more PUSCH for aperiodic CSI. The set of sixth PUSCHs may also include at least a portion or all of one or more dynamically scheduled PUSCHs and/or one or more quasi-statically scheduled PUSCHs. The one PUSCH selected from the set of fifth PUSCHs may be given based on at least an index of a serving cell to which the PUSCHs included in the set of fifth PUSCHs are respectively mapped and/or a starting position (starting position) of each of the PUSCHs included in the set of fifth PUSCHs.

When a PUCCH including UCI collides with a set of an aperiodic CSI PUSCH and a seventh PUSCH in the time domain, the terminal apparatus 1 may multiplex the UCI to the aperiodic CSI PUSCH and transmit the result. The set of seventh PUSCHs may also include at least a portion or all of one or more PUSCH for semi-persistent CSI and/or one or more PUSCH for dynamic scheduling. When the PUCCH including UCI collides with the PUSCH for aperiodic CSI and the PUSCH for quasi-persistent scheduling in the time domain, the terminal apparatus 1 may multiplex the UCI to the PUSCH for aperiodic CSI and transmit the result. When a PUCCH including UCI collides with a set of seventh PUSCHs and a quasi-statically scheduled PUSCH in the time domain, the terminal apparatus 1 may multiplex the UCI to one PUSCH selected from the set of seventh PUSCHs and transmit the PUSCH. The one PUSCH selected from the set of seventh PUSCHs may also be given based on at least an index of a serving cell to which the PUSCHs included in the set of seventh PUSCHs are respectively mapped and/or a starting position (starting position) of each of the PUSCHs included in the set of seventh PUSCHs.

When the PUCCH including UCI collides with the aperiodic CSI PUSCH and the dynamically scheduled PUSCH in the time domain, the terminal apparatus 1 may multiplex the UCI to the aperiodic CSI PUSCH and transmit the result. When a PUCCH including UCI collides with a set of an aperiodic CSI PUSCH and an eighth PUSCH in the time domain, the terminal apparatus 1 may multiplex the UCI to the aperiodic CSI PUSCH and transmit the result. The set of eighth PUSCHs may also include at least a portion or all of one or more PUSCH for semi-persistent CSI and/or one or more PUSCH for quasi-persistent scheduling. When a PUCCH including UCI collides with a dynamically scheduled PUSCH and an eighth PUSCH set in the time domain, the terminal apparatus 1 may multiplex the UCI to the dynamically scheduled PUSCH and transmit the result. When a PUCCH including UCI collides with the eighth PUSCH set in the time domain, the UCI may be multiplexed and transmitted on one PUSCH selected from the eighth PUSCH set.

When the PUCCH including UCI collides with the PUSCH for the aperiodic CSI in the time domain and the PUSCH for the aperiodic CSI is used for the serving cells, the terminal apparatus 1 may multiplex the UCI related to the PUCCH to the PUSCH for the aperiodic CSI for the serving cell having the low value of the serving cell identifier and transmit the result. When transmitting a plurality of PUSCHs of aperiodic CSI in the serving cell, the terminal apparatus 1 may multiplex UCI related to PUCCH to the PUSCH of aperiodic CSI at the head of the time domain among the plurality of PUSCHs of aperiodic CSI in the serving cell and transmit the multiplexed UCI.

When a PUCCH including UCI collides with a plurality of PUSCHs of semi-persistent CSI in the time domain and the plurality of PUSCHs of semi-persistent CSI are used for a plurality of serving cells, the terminal apparatus 1 may multiplex UCI related to the PUCCH to the PUSCH of semi-persistent CSI of the serving cell having a low value of the serving cell identifier and transmit the PUCCH. When transmitting a plurality of PUSCHs for semi-persistent CSI in the serving cell, the terminal apparatus 1 may multiplex UCI related to PUCCH to the first PUSCH for semi-persistent CSI in the time domain among the plurality of PUSCHs for semi-persistent CSI in the serving cell and transmit the multiplexed UCI.

When the PUCCH including UCI collides with one or more aperiodic CSI PUSCHs or/and one or more semi-persistent CSI PUSCHs or/and one or more dynamically scheduled PUSCHs or/and one or more quasi-statically scheduled PUSCHs in the time domain, the PUSCH transmitted by multiplexing the UCI related to the PUCCH may be determined based on at least y, c, and l. For example, when a PUCCH including UCI collides in the time domain with one or more aperiodic CSI PUSCHs or/and one or more semi-persistent CSI PUSCHs or/and one or more dynamically scheduled PUSCHs or/and one or more quasi-statically scheduled PUSCHs, the priority value Pri obtained by the equation (1) may be used_iUCIThe PUSCH to be multiplexed and transmitted with the UCI related to the PUCCH is determined.For example, the terminal apparatus 1 may multiplex UCI related to PUCCH to Pri corresponding to the lowest value_iUCIAnd corresponding PUSCH. That is, when the PUCCH including the UCI collides with one or more PUSCHs in the time domain, the terminal apparatus 1 may multiplex the UCI related to the PUCCH to Pri corresponding to the lowest value among the one or more PUSCHs_iUCIAnd corresponding PUSCH.

[ number 1]

Pri_iUCI(y，c，l)＝N_cell·N_time·y+N_time·c+l

N_cellsIs the maximum number of serving cells. N is a radical of_cellsIt can also be given by the upper layer parameter maxNrofServingCells. N is a radical of_cellsOr may be a predetermined value (e.g., 16 or 32).

N_timeOr may be a value related to a candidate number of time domain resource allocations of a PUSCH transmittable in one slot. E.g. N_timeIt may also be given based on parameters of the upper layer. E.g. N_timeOr with N^slot _symbAnd (7) corresponding. N is a radical of^slot _symbIs the number of OFDM symbols contained in one slot. In carrier aggregation of set μ in which subcarrier intervals are set for a plurality of carriers, respectively, N^slot _symbThe carrier may correspond to a carrier set to μ for which the maximum subcarrier spacing is set. In carrier aggregation of set μ in which subcarrier intervals are set for a plurality of carriers, N may be set^slot _symbCorresponds to a carrier in which a set μ having a largest subcarrier interval is set among one or more carriers of one or more PUSCHs that are transmitted (allocated) and collide with a PUCCH including UCI in the time domain. When the maximum subcarrier spacing is set to μ 2 and CP is set to extended cyclic prefix (extended CP), N may be set^slot _symbN for carriers with subcarrier spacing set to 2 and CP set to normal CP (normal cyclic prefix)^slot _symbAnd is given. E.g. N_timeCan also be combined with ceiling (K.N)^slot _symb) And (7) corresponding. The value of K may also be given based on at least μAnd (6) discharging. The value of K can also be 2^(μ-μPUCCH)And is given. μ PUCCH is the setting of the subcarrier spacing of the carrier using PUCCH. ceiling is an ceiling function. The ceiling function outputs the integer that is larger than the value of the input and smallest.

For example, in the a 1-th example, when μ ═ 3 and μ PUCCH ═ 1 are set, K is 4, N^slot _symb＝14，N_time＝56。

In the a 2-th example, when μ is 0 and μ PUCCH is 2 and the CP using the PUCCH carrier is set as the extended CP, K is 0.25 and N is set as^slot _symb＝14，N_time＝4。

In the a 3-th example, when μ 2 and μ PUCCH 4 are set and the CP using the carrier of the PUSCH corresponding to μ 2 is set as the extended CP, K is 0.25 and N is 0.25^slot _symb＝14，N_time＝4。

c is an index of a serving cell (c 0, 1.., N.)_cells-1)。

In the fourth example, c may be set to 1 for PUSCH632 and PUSCH633 and c may be set to 0 for PUSCH630 and PUSCH 631.

l may be sequentially indexed from the start position of PUSCH transmission in each serving cell. l may correspond to an index of the first OFDM symbol of the PUSCH.

In the third example, l ═ 0 may be set for the PUSCH622, l ═ 1 may be set for the PUSCH623, l ═ 2 may be set for the PUSCH624, l ═ 3 may be set for the PUSCH620, and l ═ 4 may be set for the PUSCH 621.

In the fourth example, l ═ 0 may be set for the PUSCH632, l ═ 1 may be set for the PUSCH633, l ═ 0 may be set for the PUSCH630, and l ═ 1 may be set for the PUSCH 631.

y is a weight coefficient for determining the priority order with respect to the types of the PUSCH including at least the aperiodic CSI and the semi-persistent CSI and the dynamically scheduled PUSCH and the quasi-statically scheduled PUSCH. The value of y may be set for each PUSCH type.

For example, in the b 1-th example, y may be set to 0 for the PUSCH of the semi-persistent CSI, 1 for the PUSCH of the aperiodic CSI, 2 for the PUSCH of the dynamic scheduling, and 3 for the PUSCH of the quasi-persistent scheduling.

In the b2 example, y may be set to 1 for the PUSCH of the semi-persistent CSI, 0 for the PUSCH of the aperiodic CSI, 2 for the PUSCH of the dynamic scheduling, and 3 for the PUSCH of the quasi-static scheduling.

In the b3 example, y may be set to 2 for the PUSCH of the semi-persistent CSI, 0 for the PUSCH of the aperiodic CSI, 1 for the PUSCH of the dynamic scheduling, and 3 for the PUSCH of the quasi-static scheduling.

In the b4 example, y may be set to 3 for the PUSCH of the semi-persistent CSI, 0 for the PUSCH of the aperiodic CSI, 1 for the PUSCH of the dynamic scheduling, and 2 for the PUSCH of the quasi-static scheduling.

Hereinafter, embodiments of various apparatuses according to an embodiment of the present embodiment will be described.

(1) In order to achieve the above object, the present invention adopts the following aspects. That is, a first aspect of the present invention is a terminal device including a receiving unit that receives a PDCCH, receives a PDSCH scheduled based on at least the PDCCH, selects one PUSCH from among one or more PUSCHs based on at least whether each of the one or more PUSCHs is a PUSCH for semi-persistent CSI when a PUCCH collides with the one or more PUSCHs in a time domain, and transmits UCI corresponding to the PDSCH on the selected PUSCH.

(2) A second aspect of the present invention is a base station apparatus including a transmission unit configured to transmit a PDCCH and a PDSCH scheduled based on at least the PDCCH, and when a PUCCH collides with one or more PUSCHs in a time domain, select one PUSCH from among the one or more PUSCHs based on at least whether each of the one or more PUSCHs is a PUSCH of a semi-persistent CSI, and receive UCI corresponding to the PDSCH on the selected PUSCH.

The program that operates in the base station apparatus 3 and the terminal apparatus 1 according to the present invention may be a program (a program that causes a computer to function) that controls a cpu (central Processing unit) or the like so as to realize the functions of the above-described embodiments according to the present invention. Information processed by these apparatuses is temporarily stored in a ram (random Access Memory) at the time of processing, and then stored in various ROMs such as Flash ROM (Read Only Memory) and HDDs (Hard Disk Drive), and Read out by a CPU as necessary, and corrected and written in.

Note that the terminal apparatus 1 and a part of the base station apparatus 3 according to the above-described embodiments may be implemented by a computer. In this case, the program for realizing the control function may be recorded in a computer-readable recording medium, or may be realized by causing a computer system to read and execute the program recorded in the recording medium.

Note that the "computer system" herein refers to a computer system incorporated in the terminal apparatus 1 or the base station apparatus 3, and includes hardware such as an OS and peripheral devices. The term "computer-readable recording medium" refers to a portable medium such as a flexible disk, an optical disk, a ROM, or a CD-ROM, or a storage device such as a hard disk incorporated in a computer system.

The "computer-readable recording medium" may include: a medium that dynamically holds a program for a short time such as a communication line in the case of transmitting the program via a network such as the internet or a communication line such as a telephone line, or a medium that holds a program for a constant time such as a volatile memory in a computer system serving as a server or a client in this case. The program may be a program for realizing a part of the above-described functions, or may be a program that can realize the above-described functions by combining with a program already recorded in a computer system.

The base station apparatus 3 in the above embodiment can be realized as an aggregate (apparatus group) including a plurality of apparatuses. The devices constituting the device group may have a part or all of the functions or functional blocks of the base station device 3 according to the above embodiment. All the functions or functional blocks of the base station apparatus 3 may be provided as an apparatus group. The terminal apparatus 1 according to the above embodiment can also communicate with a base station apparatus as an aggregate.

The base station apparatus 3 according to the above embodiment may be eutran (evolved Universal Radio Access network) and/or NG-RAN (NextGen RAN, NR RAN). The base station apparatus 3 according to the above embodiment may have a part or all of the functions of the upper node with respect to the eNodeB and/or the gNB.

In addition, a part or all of the terminal apparatus 1 and the base station apparatus 3 of the above embodiments may be typically realized by an LSI which is an integrated circuit, or may be realized as a chip set. Each functional block of the terminal apparatus 1 and the base station apparatus 3 may be formed as a single chip, or may be formed as a chip by partially or entirely integrating them. The method of integration is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. In addition, when a technique for realizing an integrated circuit that replaces an LSI appears due to the progress of semiconductor technology, an integrated circuit based on the technique can be used.

In the above-described embodiments, the terminal device is described as an example of the communication device, but the present invention is not limited to this, and can be applied to a terminal device or a communication device for stationary or non-movable electronic equipment installed indoors and outdoors, for example, AV equipment, kitchen equipment, cleaning/washing equipment, air conditioning equipment, office equipment, vending machines, other living equipment, and the like.

While the embodiments of the present invention have been described above with reference to the drawings, the specific configuration is not limited to the embodiments, and design changes and the like within a range not departing from the gist of the present invention are also included. The present invention can be variously modified within the scope shown in the claims, and embodiments obtained by appropriately combining the technical means disclosed in the respective embodiments are also included in the technical scope of the present invention. The present invention also includes a configuration in which elements having the same effects as those described in the above embodiments are replaced with each other.