WO2021177296A1

WO2021177296A1 - Terminal device, base station device, and communication method

Info

Publication number: WO2021177296A1
Application number: PCT/JP2021/007936
Authority: WO
Inventors: 友樹吉村; 翔一鈴木; 中嶋　大一郎; 会発林
Original assignee: シャープ株式会社
Priority date: 2020-03-06
Filing date: 2021-03-02
Publication date: 2021-09-10
Also published as: JPWO2021177296A1

Abstract

The present invention is provided with: a reception unit which receives a control signal indicating information specifying a first precoder subset of a first precoder set, and receives a DCI format including a field indicating a first precoder from precoders included in the first precoder subset; and a transmission unit which transmits a PUSCH scheduled by the DCI format in a slot set, wherein the first precoder subset includes at least a second precoder, the second precoder is selected on the basis of the first precoder, and the transmission unit applies the first precoder to the PUSCH of a first slot subset of the slot set and applies the second precoder to the PUSCH of the second slot subset of the slot set.

Description

Terminal equipment, base station equipment, and communication methods

The present invention relates to a terminal device, a base station device, and a communication method.
The present application claims priority with respect to Japanese Patent Application No. 2020-38494 filed in Japan on March 6, 2020, the contents of which are incorporated herein by reference.

Cellular mobile communication radio access scheme and a radio network (hereinafter, "Long Term Evolution (LTE)", or: as "EUTRA Evolved Universal Terrestrial Radio Access" is referred) is a third generation partnership project (3GPP: 3 ^rd It is being considered in the Generation Partnership Project). In LTE, the base station device is also called an eNodeB (evolved NodeB), and the terminal device is also called a UE (User Equipment). LTE is a cellular communication system in which a plurality of areas covered by a base station apparatus are arranged in a cell shape. A single base station device may manage multiple serving cells.

At 3GPP, the next-generation standard (NR: New Radio) will be examined in order to propose to IMT (International Mobile Telecommunication Union) -2020, which is the standard for next-generation mobile communication systems established by the International Telecommunication Union (ITU). (Non-Patent Document 1). NR is required to meet the requirements assuming three scenarios of eMBB (enhanced Mobile BroadBand), mMTC (massive Machine Type Communication), and URLLC (Ultra Reliable and Low Latency Communication) within the framework of a single technology. There is.

In 3GPP, the expansion of services supported by NR is being studied (Non-Patent Document 2).

One aspect of the present invention provides a terminal device that efficiently communicates, a communication method used for the terminal device, a base station device that efficiently communicates, and a communication method used for the base station device.

(1) The first aspect of the present invention is a terminal device, which is a receiving unit that receives a command of a MAC layer that activates a space-related information set, and a space-related unit of any of the space-related information sets. The PUCCH is transmitted by applying an information-based transmission filter, and the PUSCH is set in the slot set by applying a plurality of transmission filters based on each of the plurality of space-related information contained in the space-related information subset of the space-related information set. The space-related information subset includes at least a first space-related information and a second space-related information different from the first space-related information. A transmission filter based on the first space-related information is applied to the PUSCH of the first slot subset of the slot set, and the second is applied to the PUSCH of the second slot subset of the slot set. Apply a transmission filter based on the spatially related information of.

(2) A second aspect of the present invention is a terminal device, in which a receiving unit that receives a DCI format including at least one SRS resource indicator field and a PUSCH scheduled by the DCI format are transmitted in a slot set. A transmitter is provided, and one SRS resource set is set in the terminal device by an RRC parameter, and a first SRS resource subset of the one SRS resource set and a second SRS resource subset of the one SRS resource set are provided. The first SRS resource subset or the second SRS resource subset is indicated based on the value of the one SRS resource indicator field, and the first SRS resource subset is the first SRS resource. And a second SRS resource, the second SRS resource subset contains at least a third SRS resource and a fourth SRS resource, and the transmitter has the indicated SRS resource subset of the first. When it is an SRS resource subset, the transmission filter applied to the first SRS resource is applied to the PUSCH of the first slot subset of the slot set, and the second slot subset of the slot set is applied. When the transmission filter applied to the second SRS resource is applied to the PUSCH and the indicated SRS resource subset is the second SRS resource subset, the third slot of the slot set The transmission filter applied to the third SRS resource is applied to the PUSCH of the subset, and the transmission filter applied to the fourth SRS resource is applied to the PUSCH of the fourth slot subset of the slot set. Apply the transmission filter to be done.

(3) A third aspect of the present invention is the terminal device, which receives a first MAC layer command for activating the first space-related information set and activates the second space-related information set. The receiving unit that receives the second MAC layer command and the transmission filter based on the space-related information of one of the first space-related information sets are applied to transmit the PUCCH, and the second space-related information set is transmitted. The first space-related information includes a transmission unit that transmits a PUSCH in a slot set by applying a plurality of transmission filters based on each of the plurality of space-related information included in the first space-related information subset of the above. The subset includes at least the first space-related information and the second space-related information, and the transmitter transmits the first space-related information with respect to the PUSCH of the first slot subset of the slot set. The transmission filter based on is applied, and the transmission filter based on the second space-related information is applied to the PUSCH of the second slot subset of the slot set.

(4) A fourth aspect of the present invention is a base station apparatus, which is a receiving unit for transmitting a command of a MAC layer that activates a space-related information set, and a space of any one of the space-related information sets. A PUCCH to which a transmission filter based on related information is applied is received, and a PUSCH to which a plurality of transmission filters based on each of a plurality of space-related information included in the space-related information subset of the space-related information set are applied is set in a slot set. The space-related information subset includes at least a first space-related information and a second space-related information different from the first space-related information, and the first space-related information of the slot set includes a receiving unit for receiving. A transmission filter based on the first space-related information is applied to the PUSCH of one slot subset, and the second space-related information is applied to the PUSCH of the second slot subset of the slot set. Based on the transmission filter is applied.

(5) A fifth aspect of the present invention is a base station apparatus, in which a transmitter for receiving a DCI format including at least one SRS resource indicator field and a PUSCH scheduled by the DCI format are received in a slot set. One SRS resource set is set in the terminal device by the RRC parameter, and the first SRS resource subset of the one SRS resource set and the second SRS resource of the one SRS resource set are provided. A subset is determined, and based on the value of the one SRS resource indicator field, the first SRS resource subset or the second SRS resource subset is shown, and the first SRS resource subset is the first SRS. The second SRS resource subset includes at least a resource and a second SRS resource, the second SRS resource subset contains at least a third SRS resource and a fourth SRS resource, and the indicated SRS resource subset is the first SRS resource subset. If there is, the transmission filter applied to the first SRS resource is applied to the PUSCH of the first slot subset of the slot set, and the PUSCH of the second slot subset of the slot set is covered. On the other hand, when the transmission filter applied to the second SRS resource is applied and the indicated SRS resource subset is the second SRS resource subset, the PUSCH of the third slot subset of the slot set. The transmission filter applied to the third SRS resource is applied to the PUSCH, and the transmission filter applied to the fourth SRS resource is applied to the PUSCH of the fourth slot subset of the slot set. Is applied.

(6) A sixth aspect of the present invention is the base station apparatus, which transmits a first MAC layer command for activating the first space-related information set and activates the second space-related information set. The transmitter that transmits the second MAC layer command and the PUCCH to which the transmission filter based on the space-related information of one of the first space-related information sets is applied are received, and the second space-related information is received. The first space-related information includes a receiver that receives a PUSCH in a slot set to which a plurality of transmission filters based on each of the plurality of space-related information included in the first space-related information subset of the set are applied. The subset includes at least a first space-related information and a second space-related information, and a transmission filter based on the first space-related information is applied to the PUSCH of the first slot subset of the slot set. Then, a transmission filter based on the second space-related information is applied to the PUSCH of the second slot subset of the slot set.

(7) A seventh aspect of the present invention is a communication method used in a terminal device, which is a step of receiving a command of a MAC layer that activates a space-related information set, or any of the space-related information sets. The PUCCH is transmitted by applying a transmission filter based on the space-related information, and a plurality of transmission filters based on each of the plurality of space-related information included in the space-related information subset of the space-related information set are applied to the PUSCH. The space-related information subset comprises at least a first space-related information and a second space-related information different from the first space-related information. A transmission filter based on the first space-related information is applied to the PUSCH of the first slot subset of the set, and the second space is applied to the PUSCH of the second slot subset of the slot set. A transmission filter based on relevant information is applied.

(8) An eighth aspect of the present invention is a communication method used for a terminal device, in which a step of receiving a DCI format including at least one SRS resource instruction field and a PUSCH scheduled by the DCI format are slotted. One SRS resource set is set by the RRC parameter in the terminal device, and the first SRS resource subset of the one SRS resource set and the second SRS resource set of the one SRS resource set are provided. The first SRS resource subset or the second SRS resource subset is indicated based on the value of the one SRS resource indicator field, and the first SRS resource subset is the first. The first SRS resource and the second SRS resource are contained at least, the second SRS resource subset includes at least the third SRS resource and the fourth SRS resource, and the indicated SRS resource subset includes the first SRS. When it is a resource subset, the transmission filter applied to the first SRS resource is applied to the PUSCH of the first slot subset of the slot set, and the second slot subset of the slot set is applied. When the transmission filter applied to the second SRS resource is applied to the PUSCH and the indicated SRS resource subset is the second SRS resource subset, a third slot subset of the slot set is applied. The transmission filter applied to the third SRS resource is applied to the PUSCH, and is applied to the fourth SRS resource to the PUSCH of the fourth slot subset of the slot set. Transmission filter is applied.

(9) A ninth aspect of the present invention is a communication method used for a terminal device, which receives a first MAC layer command for activating a first space-related information set and receives a second space-related information. The PUCCH is transmitted by applying the step of receiving the second MAC layer command for activating the set and the transmission filter based on the space-related information of one of the first space-related information sets, and the second space-related information set is transmitted. The first space-related information set comprises a step of transmitting a PUSCH in a slot set by applying a plurality of transmission filters based on each of the plurality of space-related information contained in the first space-related information subset of the space-related information set. The space-related information subset includes at least the first space-related information and the second space-related information, and is transmitted based on the first space-related information to the PUSCH of the first slot subset of the slot set. A filter is applied and a transmission filter based on the second space-related information is applied to the PUSCH of the second slot subset of the slot set.

(10) A tenth aspect of the present invention is a communication method used in a base station apparatus, in which a step of transmitting a command of a MAC layer that activates a space-related information set and a space-related information set. A PUCCH to which a transmission filter based on any of the space-related information is applied is received, and a PUSCH to which a plurality of transmission filters based on each of the plurality of space-related information included in the space-related information subset of the space-related information set are applied. The space-related information subset comprises at least a first space-related information and a second space-related information different from the first space-related information. A transmission filter based on the first space-related information is applied to the PUSCH of the first slot subset of the set, and the second space is applied to the PUSCH of the second slot subset of the slot set. A transmission filter based on relevant information is applied.

(11) An eleventh aspect of the present invention is a communication method used in a base station apparatus, in which a step of receiving a DCI format including at least one SRS resource indicator field and a PUSCH scheduled by the DCI format are provided. It comprises a step of receiving in a slot set, one SRS resource set is set in the terminal device by an RRC parameter, a first SRS resource subset of the one SRS resource set, and a second of the one SRS resource set. The first SRS resource subset or the second SRS resource subset is indicated based on the value of the one SRS resource indicator field, and the first SRS resource subset is the first. The first SRS resource and the second SRS resource are contained at least, the second SRS resource subset includes at least the third SRS resource and the fourth SRS resource, and the indicated SRS resource subset includes the first SRS. When it is a resource subset, the transmission filter applied to the first SRS resource is applied to the PUSCH of the first slot subset of the slot set, and the second slot subset of the slot set is applied. When the transmission filter applied to the second SRS resource is applied to the PUSCH and the indicated SRS resource subset is the second SRS resource subset, a third slot subset of the slot set is applied. The transmission filter applied to the third SRS resource is applied to the PUSCH, and is applied to the fourth SRS resource to the PUSCH of the fourth slot subset of the slot set. Transmission filter is applied.

(12) A twelfth aspect of the present invention is a communication method used in a base station apparatus, in which a first MAC layer command for activating a first space-related information set is transmitted, and a second space-related information is transmitted. The step of transmitting the second MAC layer command for activating the information set and the PUCCH to which the transmission filter based on the space-related information of one of the first space-related information sets is applied are received, and the second space-related information set is received. A step of receiving a PUSCH in a slot set to which a plurality of transmission filters based on each of a plurality of space-related information included in the first space-related information subset of the space-related information set of The space-related information subset includes at least the first space-related information and the second space-related information, and is transmitted based on the first space-related information to the PUSCH of the first slot subset of the slot set. A filter is applied and a transmission filter based on the second space-related information is applied to the PUSCH of the second slot subset of the slot set.

(13) A thirteenth aspect of the present invention is the terminal device, which receives a control signal indicating information indicating the first precoder subset of the first precoder set, and receives the control signal indicating the information indicating the first precoder subset, and the first precoder subset. A receiver that receives a DCI format including a field indicating a first precoder among the precoders included in the DCI format, and a transmitter that transmits a PUSCH scheduled by the DCI format in a slot set. The precoder subset comprises at least a second precoder, the second precoder is determined based on the first precoder, and the transmitter is relative to the PUSCH of the first slot subset of the slot set. , The first precoder is applied, and the second precoder is applied to the PUSCH of the second slot subset of the slot set.

(14) A fourteenth aspect of the present invention is a base station apparatus, which transmits a control signal indicating information indicating an information specifying a first precoder subset of the first precoder set, and the first precoder. The first precoder including a transmitter that transmits a DCI format including a field indicating a first precoder among the precoders included in the subset, and a receiver that receives a PUSCH scheduled by the DCI format in a slot set. The precoder subset of the above includes at least a second precoder, the second precoder being determined based on the first precoder and with respect to the PUSCH of the first slot subset of the slot set. Precoder is applied, and the second precoder is applied to the PUSCH of the second slot subset of the slot set.

(15) A fifteenth aspect of the present invention is a communication method used for a terminal device, which receives a control signal indicating information indicating an information specifying a first precoder subset of the first precoder set, and said the first. A step of receiving a DCI format including a field indicating a first precoder of the precoders included in one precoder subset, and a step of transmitting a PUSCH scheduled by the DCI format in a slot set The first precoder subset comprises at least a second precoder, the second precoder being determined based on the first precoder, with respect to the PUSCH of the first slot subset of the slot set. The first precoder is applied and the second precoder is applied to the PUSCH of the second slot subset of the slot set.

(16) A sixteenth aspect of the present invention is a communication method used in a base station apparatus, in which a control signal indicating information indicating information for identifying a first precoder subset of a first precoder set is transmitted, and the above-mentioned It comprises a step of transmitting a DCI format including a field indicating the first precoder of the precoders included in the first precoder subset, and a step of receiving a PUSCH scheduled by the DCI format in a slot set. The first precoder subset comprises at least a second precoder, the second precoder being determined based on the first precoder and relative to the PUSCH of the first slot subset of the slot set. The first precoder is applied and the second precoder is applied to the PUSCH of the second slot subset of the slot set.

According to one aspect of the present invention, the terminal device can efficiently communicate. In addition, the base station device can efficiently communicate.

It is a conceptual diagram of the wireless communication system which concerns on one aspect of this Embodiment. This is an example showing the relationship between the setting μ of the subcarrier interval, the number of OFDM symbols per ^slot _{N slot symb} , and the CP (cyclic Prefix) setting according to one aspect of the present embodiment. It is a figure which shows an example of the composition method of the resource grid which concerns on one aspect of this Embodiment. It is a figure which shows the configuration example of the resource grid 3001 which concerns on one aspect of this Embodiment. It is a schematic block diagram which shows the structural example of the base station apparatus 3 which concerns on one aspect of this Embodiment. It is a schematic block diagram which shows the structural example of the terminal apparatus 1 which concerns on one aspect of this Embodiment. It is a figure which shows the structural example of the SS / PBCH block which concerns on one aspect of this Embodiment. It is a figure which shows an example of the monitoring opportunity of the search area set which concerns on one aspect of this Embodiment. It is a figure which shows an example of the format of PUSCH which concerns on one aspect of this Embodiment. It is a figure which shows an example of the arrangement of the modulation symbol which concerns on one aspect of this embodiment. It is a figure which shows the structural example of the wireless transmission / reception part 10 which concerns on one aspect of this embodiment. It is a figure which shows the candidate of the matrix W with respect to the transmission of PUSCH of one layer when four antenna ports which correspond to one aspect of this embodiment are used. It is a figure which shows an example of the management method of the spatial filter of the terminal apparatus 1 which concerns on one aspect of this Embodiment. It is a figure which shows the example of the pattern to which a plurality of spatial filters included in the spatial filter set 1600 which concerns on one aspect of this Embodiment are applied. It is a figure which shows an example of the determination method of the codebook set 1700 which concerns on one aspect of this Embodiment. It is a figure which shows the arrangement example of DMRS for PUSCH which concerns on one aspect of this Embodiment. It is a figure which shows the example of the slot in which DMRS for PUSCH which concerns on one aspect of this Embodiment is arranged. It is a figure which shows the arrangement example of DMRS for PUSCH which concerns on one aspect of this Embodiment.

Hereinafter, embodiments of the present invention will be described.

Floor (C) may be a floor function for a real number C. For example, floor (C) may be a function that outputs the maximum integer in the range that does not exceed the real number C. ceil (D) may be a ceiling function for a real number D. For example, ceil (D) may be a function that outputs the smallest integer in the range not less than the real number D. The mod (E, F) may be a function that outputs the remainder obtained by dividing E by F. The mod (E, F) may be a function that outputs a value corresponding to the remainder obtained by dividing E by F. exp (G) = e ^ G. Here, e is the number of Napiers. H ^ I indicates H to the I power. max (J, K) is a function that outputs the maximum value of J and K. Here, max (J, K) is a function that outputs J or K when J and K are equal. min (L, M) is a function that outputs the maximum value of L and M. Here, min (L, M) is a function that outputs L or M when L and M are equal. round (N) is a function that outputs an integer value closest to N.

At least OFDM (Orthogonal Frequency Division Multiplex) is used in the wireless communication system according to one aspect of the present embodiment. An OFDM symbol is a unit of the OFDM time domain. The OFDM symbol comprises at least one or more subcarriers. The OFDM symbol is converted into a time-continuous signal in the baseband signal generation. In the downlink, CP-OFDM (Cyclic Prefix-Orthogonal Frequency Division Multiplex) is at least used. In the uplink, either CP-OFDM or DFT-s-OFDM (Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplex) is used. DFT-s-OFDM may be given by applying Transform precoding to CP-OFDM.

The OFDM symbol may be a name including a CP added to the OFDM symbol. That is, a certain OFDM symbol may be configured to include the certain OFDM symbol and the CP added to the certain OFDM symbol.

FIG. 1 is a conceptual diagram of a wireless communication system according to one aspect of the present embodiment. In FIG. 1, the wireless communication system includes at least terminal devices 1A to 1C and a base station device 3 (BS # 3: Base station # 3). Hereinafter, the terminal devices 1A to 1C are also referred to as a terminal device 1 (UE # 1: UserEquipment # 1).

The base station device 3 may be configured to include one or more transmission devices (or transmission points, transmission / reception devices, transmission / reception points). When the base station device 3 is composed of a plurality of transmitting devices, each of the plurality of transmitting devices may be arranged at a different position.

The base station apparatus 3 may provide one or more serving cells. Serving cells may be defined as a set of resources used for wireless communication. Serving cells are also referred to as cells.

The serving cell may be configured to include at least one downlink component carrier (downlink carrier) and / or one uplink component carrier (uplink carrier). The serving cell may be configured to include at least two or more downlink component carriers and / or two or more uplink component carriers. The downlink component carrier and the uplink component carrier are also referred to as component carriers (carriers).

For example, one resource grid may be given for one component carrier. Also, one resource grid may be given for one component carrier and one subcarrier spacing configuration μ. Here, the setting μ of the subcarrier interval is also referred to as numerology. The resource grid contains N ^{size, μ} _{grid, x} N ^RB _sc subcarriers. The resource grid starts from the common resource blocks N ^{start, μ} _{grid, x} . The common resource blocks N ^{start, μ} _{grid, and x} are also referred to as reference points of the resource grid. The resource grid contains N ^{subframes, μ} _symbs of OFDM symbols. x is a subscript indicating the transmission direction, and indicates either a downlink or an uplink. One resource grid is given for a set of antenna ports p, a subcarrier spacing setting μ, and a transmission direction x.

N ^{size, μ} _{grid, x} and N ^{start, μ} _{grid, x} are given at least based on the upper layer parameter (CarrierBandwidth). The upper layer parameters are also referred to as SCS specific carriers. One resource grid corresponds to one SCS-specific carrier. One component carrier may include one or more SCS-specific carriers. The SCS-specific carrier may be included in the system information. For each SCS-specific carrier, one subcarrier spacing setting μ may be given.

The subcarrier interval (SCS: SubCarrier Spacing) Δf may be Δf = 2 ^μ · 15 kHz. For example, the setting μ of the subcarrier interval may indicate any of 0, 1, 2, 3, or 4.

FIG. 2 is an example showing the relationship between the setting μ of the subcarrier interval, the number of OFDM symbols per ^slot _{N slot symb} , and the CP (cyclic Prefix) setting according to one aspect of the present embodiment. In FIG. 2A, for example, when the subcarrier interval setting μ is 2 and the CP setting is normal CP (normal cyclic prefix), N ^slot _symb = 14, N ^{frame, μ} _slot = 40, N ^{subframe, μ} _slot. = 4. Further, in FIG. 2B, for example, when the subcarrier interval setting μ is 2 and the CP setting is an extended CP (extended cyclic prefix), N ^slot _symb = 12, N ^{frame, μ} _slot = 40, N ^{subframe, μ} _slot = 4.

In the wireless communication system according to one aspect of the present embodiment, a time unit (time unit) T _c may be used to represent the length of the time domain. The time unit T _c is T _c = 1 / (Δf _max · N _f ). Δf _max = 480 kHz. N _f = 4096. The constant κ is κ = Δf _max · N _f / (Δf _ref N _{f, ref} ) = 64. Δf _ref is 15 kHz. N _{f and ref} are 2048.

The transmission of signals on the downlink and / or the transmission of signals on the uplink may be organized into radio frames (system frames, frames) of _{length T f.} T _f = (Δf _max N _f / 100) · T _s = 10 ms. “・” Indicates multiplication. The radio frame is composed of 10 subframes. The length of the subframe T _sf = (Δf _max N _f / 1000) · T _s = 1 ms. The number of OFDM symbols per ^{subframe is N subframe, μ} _symb = N ^slot _symb N ^{subframe, μ} _slot .

The number and index of slots contained in a subframe may be given for a given subcarrier spacing setting μ. For example, the slot index n ^μ _s may be given in ascending order by an integer value in the range of 0 to N ^{subframe, μ} _{slot -1 in the subframe.} The number and index of slots contained in the radio frame may be given for the setting μ of the subcarrier spacing. Further, the slot indexes n ^μ _{s and f} may be given in ascending order by integer values in the range of 0 to N ^{frame and μ} _{slot -1 in the radio frame.} One slot may contain consecutive N ^slot _{symbs of OFDM symbols.} N ^slot _symb = 14.

FIG. 3 is a diagram showing an example of a method of configuring a resource grid according to one aspect of the present embodiment. The horizontal axis of FIG. 3 indicates a frequency domain. _{FIG. 3 shows a configuration example of a resource grid having a subcarrier spacing of μ 1} in the component carrier 300 and a configuration example of a resource grid having a subcarrier spacing of μ ₂ in the component carrier. In this way, one or more subcarrier intervals may be set for a component carrier. 3, it is assumed that the μ _{1 =} μ ₂ -1, various aspects of the present embodiment is not limited to the condition of μ _{1 =} μ ₂ -1.

The component carrier 300 is a band having a predetermined width in the frequency domain.

Point 3000 is an identifier for identifying a certain subcarrier. Point 3000 is also referred to as point A. The common resource block (CRB) set 3100 is a set of common resource blocks for the _{subcarrier interval setting μ 1.}

Of the common resource block set 3100, the common resource block including the point 3000 (the block indicated by the upward slash in FIG. 3) is also referred to as the reference point of the common resource block set 3100. The reference point of the common resource block set 3100 may be the common resource block of index 0 in the common resource block set 3100.

The offset 3011 is an offset from the reference point of the common resource block set 3100 to the reference point of the resource grid 3001. The offset 3011 is indicated by the number of common resource blocks for the _{subcarrier spacing setting μ 1.} ^{The resource grid 3001 includes N size, μ} _{grid 1, x} common resource blocks starting from the reference point of the resource grid 3001.

The offset 3013 is an offset from the reference point of the resource grid 3001 to the reference point (N ^{start, μ} _{BWP, i1} ) of the BWP (BandWidth Part) 3003 of the index i1.

The common resource block set 3200 is a set of common resource blocks for _{the setting μ 2 of the subcarrier interval.}

Of the common resource block set 3200, the common resource block including the point 3000 (the block indicated by the upward slash in FIG. 3) is also referred to as the reference point of the common resource block set 3200. The reference point of the common resource block set 3200 may be the common resource block of index 0 in the common resource block set 3200.

The offset 3012 is an offset from the reference point of the common resource block set 3200 to the reference point of the resource grid 3002. The offset 3012 is indicated by the number of common resource blocks for the _{subcarrier spacing μ 2.} ^{The resource grid 3002 includes N size, μ} _{grid 2, x} common resource blocks starting from the reference point of the resource grid 3002.

The offset 3014 is an offset from the reference point of the resource grid 3002 to the reference point (N ^{start, μ} _{BWP, i2} ) of the BWP 3004 of the index i2.

FIG. 4 is a diagram showing a configuration example of the resource grid 3001 according to one aspect of the present embodiment. In the resource grid of FIG. 4, the horizontal axis is the OFDM symbol index l _sym and the vertical axis is the subcarrier index k _sc . Resource grid 3001 ^{includes _{^{N size, μ grid1, x N}}} RB sc ^subcarriers, including ^{N subframe, mu} _symb OFDM symbols. Within the resource grid, the resources _{identified by the subcarrier index k sc} and the OFDM symbol index l _sym are also referred to as resource elements (REs).

A resource block (RB) contains ^NRB _sc consecutive subcarriers. A resource block is a general term for a common resource block, a physical resource block (PRB), and a virtual resource block (VRB). Here, ^NRB _sc = 12.

A resource block unit is a set of resources corresponding to one OFDM symbol in one resource block. That is, one resource block unit contains twelve resource elements corresponding to one OFDM symbol in one resource block.

Common resource blocks for a subcarrier interval setting μ are indexed in the frequency domain in ascending order from 0 in a common resource block set. A common resource block at index 0 for a subcarrier interval setting μ includes (or collides, matches) point 3000. ^{The index n μ} _CRB of the common resource block for the setting μ of a certain subcarrier interval satisfies the relationship of n ^μ _CRB = ceil (k _sc / N ^RB _sc). Here, _{the subcarrier with k sc} = 0 is a subcarrier having the same center frequency as the center frequency of the subcarrier corresponding to the point 3000.

Physical resource blocks for a setting μ of a subcarrier spacing are indexed in the frequency domain in ascending order from 0 in a BWP. ^{The index n μ} _PRB of the physical resource block for a certain subcarrier interval setting μ satisfies the relationship of n ^μ _CRB = n ^μ _PRB + N ^{start, μ} _{BWP, i.} Here, N ^{start, μ} _{BWP, and i} indicate the reference point of the BWP of the index i.

BWP is defined as a subset of common resource blocks contained in the resource grid. ^{The BWP includes N size, μ} _{BWP, i} common resource blocks starting from the reference point N ^{start, μ} _{BWP, i of the BWP.} The BWP set for the downlink carrier is also referred to as the downlink BWP. The BWP set for the uplink component carrier is also referred to as the uplink BWP.

An antenna port may be defined by the fact that the channel on which a symbol is transmitted at one antenna port can be estimated from the channel on which other symbols are transmitted at that antenna port (An antenna port is defined such that the channel over which). a symbol on the antenna port is conveyed can be inverted from the channel over which another symbol on the same antenna port is conveyed). For example, the channel may correspond to a physical channel. Further, the symbol may correspond to an OFDM symbol. The symbol may also correspond to a resource block unit. The symbol may also correspond to a resource element.

The large scale property of the channel through which the symbol is transmitted in one antenna port can be estimated from the channel in which the symbol is transmitted in the other antenna port, that the two antenna ports are QCL (Quasi Co-Located). ) Is called. Large scale characteristics may include at least the long interval characteristics of the channel. Large-scale characteristics include 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). It may include at least some or all. The fact that the first antenna port and the second antenna port are QCL with respect to the beam parameters means that the receiving beam assumed by the receiving side with respect to the first antenna port and the receiving beam assumed by the receiving side with respect to the second antenna port. May be the same. The fact that the first antenna port and the second antenna port are QCL with respect to the beam parameters means that the transmitting beam assumed by the receiving side with respect to the first antenna port and the transmitting beam assumed by the receiving side with respect to the second antenna port. May be the same. The terminal device 1 assumes that the two antenna ports are QCLs when the large-scale characteristics of the channel through which the symbol is transmitted in one antenna port can be estimated from the channel in which the symbol is transmitted in the other antenna port. May be done. The fact that the two antenna ports are QCLs may mean that the two antenna ports are QCLs.

Carrier aggregation may be communication using a plurality of aggregated serving cells. Further, carrier aggregation may be to perform communication using a plurality of aggregated component carriers. Further, carrier aggregation may be to perform communication using a plurality of aggregated downlink component carriers. In addition, carrier aggregation may be to perform communication using a plurality of aggregated uplink component carriers.

FIG. 5 is a schematic block diagram showing a configuration example of the base station device 3 according to one aspect of the present embodiment. As shown in FIG. 5, the base station apparatus 3 includes at least a part or all of the radio transmission / reception unit (physical layer processing unit) 30 and / or the upper layer processing unit 34. The radio transmission / reception unit 30 includes at least a part or all of an antenna unit 31, an RF (Radio Frequency) unit 32, and a baseband unit 33. The upper layer processing unit 34 includes at least a part or all of the medium access control layer processing unit 35 and the radio resource control (RRC: Radio Resource Control) layer processing unit 36.

The wireless transmission / reception unit 30 includes at least a part or all of the wireless transmission unit 30a and the wireless reception unit 30b. Here, the device configurations of the baseband unit included in the wireless transmission unit 30a and the baseband unit included in the wireless reception unit 30b may be the same or different. Further, the device configurations of the RF unit included in the wireless transmission unit 30a and the RF unit included in the wireless reception unit 30b may be the same or different. Further, the device configurations of the antenna unit included in the wireless transmission unit 30a and the antenna unit included in the wireless reception unit 30b may be the same or different.

For example, the wireless transmission unit 30a may generate and transmit a PDSCH baseband signal. For example, the wireless transmission unit 30a may generate and transmit a baseband signal of PDCCH. For example, the wireless transmission unit 30a may generate and transmit a baseband signal of PBCH. For example, the wireless transmission unit 30a may generate and transmit a baseband signal of the synchronization signal. For example, the wireless transmission unit 30a may generate and transmit a baseband signal of PDSCH DMRS. For example, the wireless transmission unit 30a may generate and transmit a baseband signal of PDCCH DMRS. For example, the wireless transmission unit 30a may generate and transmit a baseband signal of CSI-RS. For example, the wireless transmission unit 30a may generate and transmit a DL PTRS baseband signal.

For example, the wireless receiving unit 30b may receive the PRACH. For example, the wireless receiver 30b may receive the PUCCH and demodulate it. The radio receiving unit 30b may receive the PUSCH and demodulate it. For example, the wireless receiving unit 30b may receive the PUCCH DMRS. For example, the wireless receiving unit 30b may receive the PUSCH DMRS. For example, the wireless receiving unit 30b may receive UL PTRS. For example, the wireless receiver 30b may receive the SRS.

The upper layer processing unit 34 outputs downlink data (transport block) to the wireless transmission / reception unit 30 (or wireless transmission unit 30a). The upper layer processing unit 34 processes the MAC (Medium Access Control) layer, the packet data integration protocol (PDCP: Packet Data Convergence Protocol) layer, the wireless link control (RLC: Radio Link Control) layer, and the RRC layer.

The medium access control layer processing unit 35 included in the upper layer processing unit 34 processes the MAC layer.

The radio resource control layer processing unit 36 included in the upper layer processing unit 34 processes the RRC layer. The wireless resource control layer processing unit 36 manages various setting information / parameters (RRC parameters) of the terminal device 1. The radio resource control layer processing unit 36 sets RRC parameters based on the RRC message received from the terminal device 1.

The wireless transmission / reception unit 30 (or wireless transmission unit 30a) performs processing such as modulation and coding. The wireless transmission / reception unit 30 (or wireless transmission unit 30a) generates a physical signal by modulating, encoding, and generating a baseband signal (converting to a time continuous signal) of downlink data, and transmits the physical signal to the terminal device 1. .. The wireless transmission / reception unit 30 (or wireless transmission unit 30a) may arrange a physical signal on a component carrier and transmit it to the terminal device 1.

The wireless transmission / reception unit 30 (or wireless reception unit 30b) performs processing such as demodulation and decoding. The wireless transmission / reception unit 30 (or wireless reception unit 30b) separates, demodulates, and decodes the received physical signal, and outputs the decoded information to the upper layer processing unit 34. The radio transmission / reception unit 30 (or radio reception unit 30b) may carry out a channel access procedure prior to transmission of a physical signal.

The RF unit 32 converts the signal received via the antenna unit 31 into a baseband signal by orthogonal demodulation (down conversion), and removes unnecessary frequency components. The RF unit 32 outputs the processed analog signal to the baseband unit.

The baseband unit 33 converts the analog signal (analog signal) input from the RF unit 32 into a digital signal (digital signal). The baseband unit 33 removes a portion corresponding to CP (Cyclic Prefix) from the converted digital signal, performs a fast Fourier transform (FFT) on the signal from which the CP has been removed, and outputs a signal in the frequency domain. Extract.

The baseband unit 33 performs inverse fast Fourier transform (IFFT) on the data to generate an OFDM symbol, adds CP to the generated OFDM symbol, generates a baseband digital signal, and basebands the data. Converts a band digital signal into an analog signal. The baseband unit 33 outputs the converted analog signal to the RF unit 32.

The RF unit 32 removes excess frequency components from the analog signal input from the baseband unit 33 using a low-pass filter, upconverts the analog signal to the carrier frequency, and transmits the analog signal via the antenna unit 31. do. Further, the RF unit 32 may have a function of controlling the transmission power. The RF unit 32 is also referred to as a transmission power control unit.

One or more serving cells (or component carriers, downlink component carriers, uplink component carriers) may be set for the terminal device 1.

Each of the serving cells set for the terminal device 1 is one of PCell (Primary cell, primary cell), PSCell (Primary SCG cell, primary SCG cell), and SCell (Secondary Cell, secondary cell). May be good.

PCell is a serving cell included in MCG (MasterCellGroup). The PCell is a cell (implemented cell) that executes an initial connection establishment procedure (initial connection establishment procedure) or a connection re-establishment procedure (connection re-establishment procedure) by the terminal device 1.

PSCell is a serving cell included in SCG (Secondary Cell Group). The PSCell is a serving cell in which random access is performed by the terminal device 1 in a resetting procedure (Reconfiration with synchronization) accompanied by synchronization.

SCell may be included in either MCG or SCG.

Serving cell group (cell group) is a name that includes at least MCG and SCG. The serving cell group may include one or more serving cells (or component carriers). One or more serving cells (or component carriers) included in the serving cell group may be operated by carrier aggregation.

One or more downlink BWPs may be set for each of the serving cells (or downlink component carriers). One or more uplink BWPs may be set for each of the serving cells (or uplink component carriers).

Of the one or more downlink BWPs configured for the serving cell (or downlink component carrier), one downlink BWP may be configured as the active downlink BWP (or one downlink BWP). May be activated). Of the one or more uplink BWPs configured for the serving cell (or uplink component carrier), one uplink BWP may be configured as the active uplink BWP (or one uplink BWP). May be activated).

PDSCH, PDCCH, and CSI-RS may be received on the active downlink BWP. The terminal device 1 may receive PDSCH, PDCCH, and CSI-RS on the active downlink BWP. The PUCCH and PUSCH may be transmitted on the active uplink BWP. The terminal device 1 may transmit the PUCCH and the PUSCH in the active uplink BWP. The active downlink BWP and the active uplink BWP are also referred to as an active BWP.

PDSCH, PDCCH, and CSI-RS do not have to be received in the downlink BWP (inactive downlink BWP) other than the active downlink BWP. The terminal device 1 does not have to receive PDSCH, PDCCH, and CSI-RS in the downlink BWP other than the active downlink BWP. The PUCCH and PUSCH may not be transmitted in an uplink BWP (inactive uplink BWP) other than the active uplink BWP. The terminal device 1 does not have to transmit the PUCCH and the PUSCH in the uplink BWP other than the active uplink BWP. The inactive downlink BWP and the inactive uplink BWP are also referred to as an inactive BWP.

The downlink BWP switch (BWP switch) is for deactivating one active downlink BWP and activating any of the inactive downlink BWP other than the one active downlink BWP. Used. The downlink BWP switching may be controlled by the BWP field included in the downlink control information. The downlink BWP switching may be controlled based on the parameters of the upper layer.

Uplink BWP switching is used to deactivate one active uplink BWP and activate any of the inactive uplink BWPs other than the one active uplink BWP. The uplink BWP switching may be controlled by the BWP field included in the downlink control information. The uplink BWP switching may be controlled based on the parameters of the upper layer.

Of the one or more downlink BWPs set for the serving cell, two or more downlink BWPs need not be set as the active downlink BWP. One downlink BWP may be active for the serving cell at a given time.

Of the one or more uplink BWPs set for the serving cell, two or more uplink BWPs need not be set as the active uplink BWP. One uplink BWP may be active for the serving cell at a given time.

FIG. 6 is a schematic block diagram showing a configuration example of the terminal device 1 according to one aspect of the present embodiment. As shown in FIG. 6, the terminal device 1 includes at least one or all of the wireless transmission / reception unit (physical layer processing unit) 10 and the upper layer processing unit 14. The radio transmission / reception unit 10 includes at least a part or all of the antenna unit 11, the RF unit 12, and the baseband unit 13. The upper 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 wireless transmission / reception unit 10 includes at least a part or all of the wireless transmission unit 10a and the wireless reception unit 10b. Here, the device configurations of the baseband unit 13 included in the wireless transmission unit 10a and the baseband unit 13 included in the wireless reception unit 10b may be the same or different. Further, the device configurations of the RF unit 12 included in the wireless transmission unit 10a and the RF unit 12 included in the wireless reception unit 10b may be the same or different. Further, the device configurations of the antenna unit 11 included in the wireless transmission unit 10a and the antenna unit 11 included in the wireless reception unit 10b may be the same or different.

For example, the wireless transmission unit 10a may generate and transmit a PRACH baseband signal. For example, the wireless transmission unit 10a may generate and transmit a PUCCH baseband signal. The radio transmission unit 10a may generate and transmit a PUSCH baseband signal. For example, the wireless transmission unit 10a may generate and transmit a baseband signal of PUCCH DMRS. For example, the wireless transmission unit 10a may generate and transmit a baseband signal of PUSCH DMRS. For example, the wireless transmission unit 10a may generate and transmit a baseband signal of UL PTRS. For example, the wireless transmission unit 10a may generate and transmit an SRS baseband signal.

For example, the wireless receiving unit 10b may receive the PDSCH and demodulate it. For example, the wireless receiver 10b may receive the PDCCH and demodulate it. For example, the wireless receiver 10b may receive the PBCH and demodulate it. For example, the wireless receiving unit 10b may receive the synchronization signal. For example, the wireless receiving unit 10b may receive the PDSCH DMRS. For example, the wireless receiving unit 10b may receive the PDCCH DMRS. For example, the wireless receiver 10b may receive the CSI-RS. For example, the wireless receiving unit 10b may receive DL PTRS.

The upper layer processing unit 14 outputs uplink data (transport block) to the wireless transmission / reception unit 10 (or wireless transmission unit 10a). The upper layer processing unit 14 processes the MAC layer, the packet data integration protocol layer, the wireless link control layer, and the RRC layer.

The medium access control layer processing unit 15 included in the upper layer processing unit 14 processes the MAC layer.

The radio resource control layer processing unit 16 included in the upper layer processing unit 14 processes the RRC layer. The radio resource control layer processing unit 16 manages various setting information / parameters (RRC parameters) of the terminal device 1. The radio resource control layer processing unit 16 sets RRC parameters based on the RRC message received from the base station apparatus 3.

The wireless transmission / reception unit 10 (or wireless transmission unit 10a) performs processing such as modulation and coding. The wireless transmission / reception unit 10 (or wireless transmission unit 10a) generates a physical signal by modulating, encoding, and generating a baseband signal (converting to a time continuous signal) of uplink data, and transmits the physical signal to the base station apparatus 3. do. The radio transmission / reception unit 10 (or radio transmission unit 10a) may arrange a physical signal in a certain BWP (active uplink BWP) and transmit it to the base station apparatus 3.

The wireless transmission / reception unit 10 (or wireless reception unit 10b) performs processing such as demodulation and decoding. The radio transmission / reception unit 10 (or radio reception unit 30b) may receive a physical signal at a BWP (active downlink BWP) having a certain serving cell. The wireless transmission / reception unit 10 (or wireless reception unit 10b) separates, demodulates, and decodes the received physical signal, and outputs the decoded information to the upper layer processing unit 14. The wireless transmission / reception unit 10 (radio reception unit 10b) may carry out a channel access procedure prior to transmission of a physical signal.

The RF unit 12 converts the signal received via the antenna unit 11 into a baseband signal by orthogonal demodulation (down conversion: down converter), and removes unnecessary frequency components. The RF unit 12 outputs the processed analog signal to the baseband unit 13.

The baseband unit 13 converts the analog signal input from the RF unit 12 into a digital signal. The baseband unit 13 removes a portion corresponding to CP (Cyclic Prefix) from the converted digital signal, performs a fast Fourier transform (FFT) on the signal from which the CP has been removed, and outputs a signal in the frequency domain. Extract.

The baseband unit 13 performs inverse fast Fourier transform (IFFT) on the uplink data to generate an OFDM symbol, adds CP to the generated OFDM symbol, and generates a baseband digital signal. , Converts baseband digital signals to analog signals. The baseband unit 13 outputs the converted analog signal to the RF unit 12.

The RF unit 12 removes excess frequency components from the analog signal input from the baseband unit 13 using a low-pass filter, upconverts the analog signal to the carrier frequency, and transmits the analog signal via the antenna unit 11. do. Further, the RF unit 12 may have a function of controlling the transmission power. The RF unit 12 is also referred to as a transmission power control unit.

The physical signal (signal) will be described below.

Physical signal is a general term for downlink physical channel, downlink physical signal, uplink physical channel, and uplink physical channel. The physical channel is a general term for a downlink physical channel and an uplink physical channel. The physical signal is a general term for a downlink physical signal and an uplink physical signal.

The uplink physical channel may correspond to a set of resource elements that carry information that occurs in the upper layers. The uplink physical channel may be the physical channel used in the uplink component carrier. The uplink physical channel may be transmitted by the terminal device 1. The uplink physical channel may be received by the base station apparatus 3. In the wireless communication system according to one aspect of the present embodiment, at least some or all of the following uplink physical channels may be used.
・ PUCCH (Physical Uplink Control CHannel)
・ PUSCH (Physical Uplink Shared CHannel)
・ PRACH (Physical Random Access CHannel)

PUCCH may be used to transmit uplink control information (UCI: Uplink Control Information). PUCCH may be transmitted to transmit uplink control information (deliver, transmission, conduct). The uplink control information may be mapped on the PUCCH. The terminal device 1 may transmit the PUCCH in which the uplink control information is arranged. The base station apparatus 3 may receive the PUCCH in which the uplink control information is arranged.

The uplink control information (uplink control information bit, uplink control information sequence, uplink control information type) includes channel state information (CSI: Channel State Information), scheduling request (SR: Scheduling Request), and HARQ-ACK (Hybrid). AutomaticRepeatrequestACKnowledgement) Includes at least some or all of the information.

The channel state information is also referred to as a channel state information bit or a channel state information series. The scheduling request is also called a scheduling request bit or a scheduling request series. The HARQ-ACK information is also referred to as a HARQ-ACK information bit or a HARQ-ACK information series.

HARQ-ACK information is a transport block (or TB: Transport block, MAC PDU: Medium Access Control Protocol Data Unit, DL-SCH: Downlink-Shared Channel, UL-SCH: Uplink-Shared Channel, PDSCH: Physical Downlink Shared. It may contain at least HARQ-ACK corresponding to Channel, PUSCH: Physical Uplink Shared CHannel). HARQ-ACK may indicate ACK (acknowledgment) or NACK (negative-acknowledgment) corresponding to the transport block. ACK may indicate that the transport block has been successfully decrypted (has been decoded). NACK may indicate that the decryption of the transport block has not been successfully completed (has not been decoded). The HARQ-ACK information may include a HARQ-ACK codebook containing one or more HARQ-ACK bits.

Correspondence between the HARQ-ACK information and the transport block may mean that the HARQ-ACK information and the PDSCH used for transmission of the transport block correspond to each other.

HARQ-ACK may indicate ACK or NACK corresponding to one CBG (Code Block Group) included in the transport block.

Scheduling requests may at least be used to request PUSCH (or UL-SCH) resources for initial transmission. The scheduling request bit may be used to indicate either a positive SR (positive SR) or a negative SR (negative SR). The fact that the scheduling request bit indicates a positive SR is also referred to as "a positive SR is transmitted". A positive SR may indicate that the terminal device 1 requires a PUSCH (or UL-SCH) resource for initial transmission. A positive SR may indicate that the scheduling request is triggered by the upper layer. A positive SR may be transmitted when the upper layer instructs it to transmit a scheduling request. The fact that the scheduling request bit indicates a negative SR is also referred to as "a negative SR is transmitted". A negative SR may indicate that the terminal device 1 does not require PUSCH (or UL-SCH) resources for initial transmission. A negative SR may indicate that the scheduling request is not triggered by the upper layer. Negative SRs may be sent if the higher layer does not instruct them to send scheduling requests.

The channel state information may include at least a part or all of a channel quality index (CQI: Channel Quality Indicator), a precoder matrix index (PMI: Precoder Matrix Indicator), and a rank index (RI: Rank Indicator). CQI is an index related to the quality of the propagation path (for example, propagation intensity) or the quality of the physical channel, and PMI is an index related to the precoder. RI is an index related to the transmission rank (or the number of transmission layers).

Channel state information may be given at least on the basis of receiving at least a physical signal (eg, CSI-RS) used for channel measurement. The channel state information may be selected by the terminal device 1 at least based on receiving the physical signal used for channel measurement. The channel measurement may include an interference measurement.

PUCCH may support the PUCCH format. The PUCCH may be a set of resource elements used to convey the PUCCH format. The PUCCH may include a PUCCH format.

PUSCH may be used to transmit transport blocks and / or uplink control information. The PUSCH may be used to transmit the transport block corresponding to the UL-SCH and / or the uplink control information. The PUSCH may be used to transmit transport blocks and / or uplink control information. The PUSCH may be used to transmit the transport block corresponding to the UL-SCH and / or the uplink control information. The transport block may be located on the PUSCH. The transport block corresponding to UL-SCH may be arranged in PUSCH. The uplink control information may be arranged in PUSCH. The terminal device 1 may transmit a transport block and / or a PUSCH in which uplink control information is arranged. The base station apparatus 3 may receive the transport block and / or the PUSCH in which the uplink control information is arranged.

PRACH may be used to transmit a random access preamble. PRACH may be used to convey a random access preamble. The PRACH sequence x _{u, v} (n) is defined by x _{u, v} (n) = x _u (mod (n + C _v , L _RA )). x _u may be a ZC (Zadoff Chu) series. x _u is defined by _{x u} = exp (-jπui (i + 1) / L _RA). j is an imaginary unit. Also, π is the pi. C _v corresponds to the cyclic shift of the PRACH sequence (cyclic shift). L _RA corresponds to the length of the PRACH series. L _RA is 839, or 139. i is an integer in the range 0 to L _{RA -1.} u is a series index for the PRACH series. The terminal device 1 may transmit PRACH. The base station device 3 may receive the PRACH.

For a PRACH opportunity, 64 random access preambles are defined. Random access preamble cyclic shift _{C v} of PRACH sequence, and, at least on the basis of the identified sequence index u for PRACH sequence (determined, given).

The uplink physical signal may correspond to a set of resource elements. The uplink physical signal does not have to carry the information generated in the upper layer. The uplink physical signal may be the physical signal used in the uplink component carrier. The terminal device 1 may transmit an uplink physical signal. The base station device 3 may receive an uplink physical signal. In the wireless communication system according to one aspect of the present embodiment, at least some or all of the following uplink physical signals may be used.
・ UL DMRS (UpLink Demodulation Reference Signal)
・ SRS (Sounding Reference Signal)
・ UL PTRS (UpLink Phase Tracking Reference Signal)

UL DMRS is a general term for DMRS for PUSCH and DMRS for PUCCH.

The set of antenna ports of DMRS for PUSCH (DMRS related to PUSCH, DMRS included in PUSCH, DMRS corresponding to PUSCH) may be given based on the set of antenna ports for PUSCH. That is, the set of DMRS antenna ports for the PUSCH may be the same as the set of the PUSCH antenna ports.

The transmission of the PUSCH and the transmission of the DMRS for the PUSCH may be indicated (or scheduled) in one DCI format. The PUSCH and the DMRS for the PUSCH may be collectively referred to as the PUSCH. Transmission of PUSCH may be transmission of PUSCH and DMRS for the PUSCH.

The PUSCH may be estimated from the DMRS for the PUSCH. That is, the propagation path of the PUSCH may be estimated from the DMRS for the PUSCH.

The set of antenna ports of DMRS for PUCCH (DMRS related to PUCCH, DMRS included in PUCCH, DMRS corresponding to PUCCH) may be the same as the set of antenna ports of PUCCH.

The transmission of the PUCCH and the transmission of the DMRS for the PUCCH may be indicated (or triggered) in one DCI format. The mapping of PUCCH to resource elements (resource element mapping) and / or the mapping of DMRS to resource elements for the PUCCH may be given in one PUCCH format. PUCCH and DMRS for the PUCCH may be collectively referred to as PUCCH. Transmission of PUCCH may be transmission of PUCCH and DMRS for the PUCCH.

PUCCH may be estimated from DMRS for the PUCCH. That is, the propagation path of the PUCCH may be estimated from the DMRS for the PUCCH.

The downlink physical channel may correspond to a set of resource elements carrying information generated in the upper layer. The downlink physical channel may be the physical channel used in the downlink component carrier. The base station apparatus 3 may transmit a downlink physical channel. The terminal device 1 may receive the downlink physical channel. In the wireless communication system according to one aspect of the present embodiment, at least some or all of the following downlink physical channels may be used.
・ PBCH (Physical Broadcast Channel)
・ PDCCH (Physical Downlink Control Channel)
・ PDSCH (Physical Downlink Shared Channel)

PBCH may be used to transmit MIB (MIB: Master Information Block) and / or physical layer control information. The PBCH may be transmitted to transmit (deliver, transmission, convey) the MIB and / or physical layer control information. BCH may be mapped to PBCH. The terminal device 1 may receive the MIB and / or the PBCH in which the physical layer control information is arranged. The base station apparatus 3 may transmit a MIB and / or a PBCH in which physical layer control information is arranged. The physical layer control information is also referred to as a PBCH payload or a PBCH payload related to timing. The MIB may include one or more upper layer parameters.

The physical layer control information includes 8 bits. The physical layer control information may include at least a part or all of the following 0A to 0D.
0A) Wireless frame bit 0B) Half wireless frame (half system frame, half frame) bit 0C) SS / PBCH block index bit 0D) Subcarrier offset bit

The radio frame bit is used to indicate a radio frame through which the PBCH is transmitted (a radio frame including a slot through which the PBCH is transmitted). The radio frame bit includes 4 bits. The radio frame bit may be composed of 4 bits of the 10-bit radio frame indicator. For example, the radio frame indicator may at least be used to identify radio frames from index 0 to index 1023.

The half radio frame bit is used to indicate whether the PBCH is transmitted in the first five subframes or the latter five subframes among the radio frames in which the PBCH is transmitted. Here, the half radio frame may be configured to include five subframes. Further, the half radio frame may be composed of five subframes in the first half of the ten subframes included in the radio frame. Further, the half radio frame may be composed of the latter five subframes out of the ten subframes included in the radio frame.

The SS / PBCH block index bit is used to indicate the SS / PBCH block index. The SS / PBCH block index bit includes 3 bits. The SS / PBCH block index bit may be composed of 3 bits of the 6-bit SS / PBCH block index specifier. The SS / PBCH block index indicator may at least be used to identify SS / PBCH blocks from index 0 to index 63.

The subcarrier offset bit is used to indicate the subcarrier offset. The subcarrier offset may be used to indicate the difference between the first subcarrier to which the PBCH is mapped and the first subcarrier to which the control resource set at index 0 is mapped.

PDCCH may be used to transmit downlink control information (DCI: Downlink Control Information). The PDCCH may be transmitted to transmit downlink control information (deliver, transmission, conduct). The downlink control information may be mapped on the PDCCH. The terminal device 1 may receive the PDCCH in which the downlink control information is arranged. The base station apparatus 3 may transmit the PDCCH in which the downlink control information is arranged.

The downlink control information may correspond to the DCI format. The downlink control information may be included in the DCI format. The downlink control information may be arranged in each field of the DCI format.

DCI format 0_1, DCI format 0_1, DCI format 1_1, and DCI format 1_1 are DCI formats including different sets of fields. The uplink DCI format is a general term for DCI format 0_0 and DCI format 0_1. The downlink DCI format is a general term for DCI format 1_0 and DCI format 1-1.1.

DCI format 0_0 is at least used for scheduling PUSCH in a cell (or placed in a cell). DCI format 0_0 comprises at least some or all of the fields 1A to 1E.
1A) Identifier field for DCI formats
1B) Frequency domain resource allocation field
1C) Time domain resource allocation field
1D) Frequency hopping flag field
1E) MCS field (Modulation and Coding Scheme field)

The DCI format specific field may indicate whether the DCI format including the DCI format specific field is the uplink DCI format or the downlink DCI format. The DCI format specific field included in DCI format 0_0 may indicate 0 (or may indicate that DCI format 0_0 is uplink DCI format).

The frequency domain resource allocation field contained in DCI format 0_0 may at least be used to indicate the frequency resource allocation for PUSCH.

The time domain resource allocation field contained in DCI format 0_0 may at least be used to indicate the allocation of time resources for PUSCH.

The frequency hopping flag field may at least be used to indicate whether frequency hopping is applied to PUSCH.

The MCS field contained in DCI format 0_0 may be at least used to indicate the modulation scheme for PUSCH and / or part or all of the target code rate. The target code rate may be the target code rate for the PUSCH transport block. The size of the PUSCH transport block (TBS: Transport Block Size) may be given at least based on the target code rate and some or all of the modulation schemes for the PUSCH.

DCI format 0_0 does not have to include the field used for the CSI request (CSI request). That is, the DCI format 0_0 does not have to require CSI.

DCI format 0_0 does not have to include the carrier indicator field. That is, the uplink component carrier on which the PUSCH scheduled by DCI format 0_0 is arranged may be the same as the uplink component carrier on which the PDCCH including the DCI format 0_0 is arranged.

DCI format 0_0 does not have to include the BWP field. That is, the uplink BWP on which the PUSCH scheduled by DCI format 0_0 is arranged may be the same as the uplink BWP on which the PDCCH including the DCI format 0_0 is arranged.

DCI format 0_1 is at least used for scheduling PUSCH (located in a cell) in a cell. DCI format 0-1 is configured to include at least some or all of the fields 2A to 2H.
2A) DCI format specific field 2B) Frequency domain resource allocation field 2C) Uplink time domain resource allocation field 2D) Frequency hopping flag field 2E) MCS field 2F) CSI request field
2G) BWP field
2H) Carrier indicator field

The DCI format specific field included in the DCI format 0_1 may indicate 0 (or may indicate that the DCI format 0_1 is an uplink DCI format).

The frequency domain resource allocation field included in DCI format 0-1 may at least be used to indicate the frequency resource allocation for PUSCH.

The time domain resource allocation field contained in DCI format 0-1 may at least be used to indicate the allocation of time resources for PUSCH.

The MCS field contained in DCI format 0-1 may be at least used to indicate the modulation scheme for PUSCH and / or part or all of the target code rate.

If DCI format 0-1 includes a BWP field, the BWP field may be used to indicate the uplink BWP on which the PUSCH is located. If the DCI format 0_1 does not include a BWP field, the uplink BWP in which the PUSCH is located may be the same as the uplink BWP in which the PDCCH containing the DCI format 0_1 used for scheduling the PUSCH is located. When the number of uplink BWPs set in the terminal device 1 in a certain uplink component carrier is 2 or more, the BWP field included in the DCI format 0-1 used for scheduling the PUSCH arranged in the uplink component carrier. The number of bits may be 1 bit or more. When the number of uplink BWPs set in the terminal device 1 in a certain uplink component carrier is 1, the bits of the BWP field included in the DCI format 0-1 used for scheduling the PUSCH arranged in the uplink component carrier. The number may be 0 bits (or the DCI format 0-1 used to schedule the PUSCH placed on the uplink component carrier may not include the BWP field).

The CSI request field is at least used to direct CSI reporting.

If the DCI format 0-1 includes a carrier indicator field, the carrier indicator field may be used to indicate the uplink component carrier on which the PUSCH is located. If DCI format 0_1 does not include a carrier indicator field, the uplink component carrier on which the PUSCH is located is the same as the uplink component carrier on which the PDCCH containing DCI format 0_1 used to schedule the PUSCH is located. May be good. When the number of uplink component carriers set in the terminal device 1 in a serving cell group is 2 or more (when uplink carrier aggregation is operated in a serving cell group), the PUSCH arranged in the serving cell group The number of bits of the carrier indicator field included in the DCI format 0-1 used for scheduling may be 1 bit or more (for example, 3 bits). When the number of uplink component carriers set in the terminal device 1 in a serving cell group is 1 (when uplink carrier aggregation is not operated in a serving cell group), the PUSCH arranged in the serving cell group is scheduled. The number of bits of the carrier indicator field included in the DCI format 0-1 used may be 0 bits (or the carrier indicator field is included in the DCI format 0-1 used for scheduling PUSCHs arranged in the serving cell group. It does not have to be).

DCI format 1_0 is at least used for scheduling PDSCH (located in a cell) in a cell. DCI format 1_0 is configured to include at least part or all of 3A to 3F.
3A) DCI format specific field 3B) Frequency domain resource allocation field 3C) Time domain resource allocation field 3D) MCS field 3E) PDSCH_HARQ feedback timing indicator field (PDSCH to HARQ feedback timing indicator field)
3F) PUCCH resource indicator field

The DCI format specific field included in the DCI format 1_0 may indicate 1 (or may indicate that the DCI format 1_0 is the downlink DCI format).

The frequency domain resource allocation field included in DCI format 1_0 may at least be used to indicate the frequency resource allocation for PDSCH.

The time domain resource allocation field contained in DCI format 1_0 may at least be used to indicate the allocation of time resources for PDSCH.

The MCS field contained in DCI format 1_0 may be at least used to indicate the modulation scheme for PDSCH and / or part or all of the target code rate. The target code rate may be the target code rate for the PDSCH transport block. The size of the transport block of the PDSCH (TBS: Transport Block Size) may be given at least based on the target code rate and some or all of the modulation schemes for the PDSCH.

The PDSCH_HARQ feedback timing indicator field may at least be used to indicate the offset from the slot containing the last OFDM symbol of the PDSCH to the slot containing the first OFDM symbol of the PUCCH.

The PUCCH resource instruction field may be a field indicating an index of either one or a plurality of PUCCH resources included in the PUCCH resource set. The PUCCH resource set may include one or more PUCCH resources.

DCI format 1_0 does not have to include the carrier indicator field. That is, the downlink component carrier on which the PDSCH scheduled by DCI format 1_0 is arranged may be the same as the downlink component carrier on which the PDCCH including the DCI format 1_0 is arranged.

DCI format 1_0 does not have to include the BWP field. That is, the downlink BWP on which the PDSCH scheduled by DCI format 1_0 is arranged may be the same as the downlink BWP on which the PDCCH including the DCI format 1_0 is arranged.

DCI format 1-11 is at least used for scheduling PDSCH in a cell (or placed in a cell). DCI format 1_1 is configured to include at least some or all of 4A to 4I.
4A) DCI format specific field 4B) Frequency domain resource allocation field 4C) Time domain resource allocation field 4E) MCS field 4
F) PDSCH_HARQ feedback timing instruction field 4G) PUCCH resource instruction field 4H) BWP field 4I) carrier indicator field

The DCI format specific field included in the DCI format 1-11 may indicate 1 (or may indicate that the DCI format 1-11 is the downlink DCI format).

The frequency domain resource allocation field included in DCI format 1-11 may at least be used to indicate the frequency resource allocation for PDSCH.

The time domain resource allocation field included in DCI format 1-11 may at least be used to indicate the allocation of time resources for PDSCH.

The MCS field contained in DCI format 1-11 may at least be used to indicate the modulation scheme for PDSCH and / or part or all of the target code rate.

If the DCI format 1-11 includes a PDSCH_HARC feedback timing indicator field, the PDSCH_HARC feedback timing indicator field indicates the offset from the slot containing the last OFDM symbol of the PDSCH to the slot containing the first OFDM symbol of the PUCCH. At least may be used for. If the DCI format 1-11 does not include the PDSCH_HARQ feedback timing indicator field, the offset from the slot containing the last OFDM symbol of the PDSCH to the slot containing the first OFDM symbol of the PUCCH may be specified by the parameters of the upper layer. good.

The PUCCH resource instruction field may be a field indicating an index of either one or a plurality of PUCCH resources included in the PUCCH resource set.

If the DCI format 1-1-1 includes a BWP field, the BWP field may be used to indicate the downlink BWP on which the PDSCH is located. If the DCI format 1-11 does not include a BWP field, the downlink BWP in which the PDSCH is placed may be the same as the downlink BWP in which the PDCCH containing the DCI format 1-11, which is used for scheduling the PDSCH, is placed. When the number of downlink BWPs set in the terminal device 1 in a downlink component carrier is 2 or more, the BWP field included in the DCI format 1-11 used for scheduling the PDSCH arranged in the downlink component carrier. The number of bits may be 1 bit or more. When the number of downlink BWPs set in the terminal device 1 in a downlink component carrier is 1, the bits of the BWP field included in the DCI format 1-1-1 used for scheduling the PDSCH arranged in the downlink component carrier. The number may be 0 bits (or the DCI format 1-11 used to schedule the PDSCH placed on the downlink component carrier may not include the BWP field).

If the DCI format 1-1-1 includes a carrier indicator field, the carrier indicator field may be used to indicate the downlink component carrier in which the PDSCH is located. If the DCI format 1-11 does not include a carrier indicator field, the downlink component carrier in which the PDSCH is located is the same as the downlink component carrier in which the PDCCH containing the DCI format 1-1-1, used for scheduling the PDSCH, is located. May be good. When the number of downlink component carriers set in the terminal device 1 in a certain serving cell group is 2 or more (when downlink carrier aggregation is operated in a certain serving cell group), the PDSCH arranged in the certain serving cell group The number of bits of the carrier indicator field included in the DCI format 1-11 used for scheduling may be 1 bit or more (for example, 3 bits). When the number of downlink component carriers set in the terminal device 1 in a certain serving cell group is 1 (when downlink carrier aggregation is not operated in a certain serving cell group), the PDSCH arranged in the certain serving cell group is scheduled. The number of bits of the carrier indicator field included in the DCI format 1-11 used may be 0 bits (or the carrier indicator field is included in the DCI format 1-11 used for scheduling PDSCHs arranged in the serving cell group. It does not have to be).

The PDSCH may be used to transmit a transport block. The PDSCH may be used to transmit the transport block corresponding to the DL-SCH. PDSCH may be used to transmit the transport block. The PDSCH may be used to transmit the transport block corresponding to the DL-SCH. The transport block may be located on the PDSCH. The transport block corresponding to DL-SCH may be arranged in PDSCH. The base station device 3 may transmit the PDSCH. The terminal device 1 may receive the PDSCH.

The downlink physical signal may correspond to a set of resource elements. The downlink physical signal does not have to carry the information generated in the upper layer. The downlink physical signal may be a physical signal used in the downlink component carrier. The downlink physical signal may be transmitted by the base station apparatus 3. The downlink physical signal may be transmitted by the terminal device 1. In the wireless communication system according to one aspect of the present embodiment, at least some or all of the following downlink physical signals may be used.
・ Synchronization signal (SS)
・ DL DMRS (DownLink DeModulation Reference Signal)
・ CSI-RS (Channel State Information-Reference Signal)
・ DL PTRS (DownLink Phase Tracking Reference Signal)

The synchronization signal may be at least used by the terminal device 1 to synchronize the downlink frequency domain and / or the time domain. The synchronization signal is a general term for PSS (PrimarySynchronizationSignal) and SSS (SecondarySynchronizationSignal).

FIG. 7 is a diagram showing a configuration example of the SS / PBCH block according to one aspect of the present embodiment. In FIG. 7, the horizontal axis represents the time axis (OFDM symbol index l _sym ), and the vertical axis represents the frequency domain. Also, the shaded blocks indicate a set of resource elements for PSS. Also, the grid block indicates a set of resource elements for the SSS. Further, the horizontal line block indicates a set of resource elements for PBCH and DMRS for the PBCH (DMRS related to PBCH, DMRS contained in PBCH, DMRS corresponding to PBCH).

As shown in FIG. 7, the SS / PBCH block includes PSS, SSS, and PBCH. Also, the SS / PBCH block contains four consecutive OFDM symbols. The SS / PBCH block contains 240 subcarriers. The PSS is located in the 57th to 183rd subcarriers of the 1st OFDM symbol. The SSS is located in the 57th to 183rd subcarriers of the 3rd OFDM symbol. Zero may be set for the 1st to 56th subcarriers of the 1st OFDM symbol. The 184th to 240th subcarriers of the first OFDM symbol may be set to zero. The 49th to 56th subcarriers of the third OFDM symbol may be set to zero. The 184th to 192nd subcarriers of the third OFDM symbol may be set to zero. The PBCH is placed in the first to 240th subcarriers of the second OFDM symbol and in which the DMRS for the PBCH is not placed. The PBCH is placed in the 1st to 48th subcarriers of the 3rd OFDM symbol and in which the DMRS for the PBCH is not placed. The PBCH is placed in the 193rd to 240th subcarriers of the third OFDM symbol and in which the DMRS for the PBCH is not placed. The PBCH is placed in the 1st to 240th subcarriers of the 4th OFDM symbol and in which the DMRS for the PBCH is not placed.

The antenna ports of PSS, SSS, PBCH, and DMRS for PBCH may be the same.

The PBCH to which the PBCH symbol is transmitted at an antenna port is the DMRS for the PBCH placed in the slot to which the PBCH is mapped and for the PBCH contained in the SS / PBCH block containing the PBCH. It may be estimated by DMRS of.

DL DMRS is a general term for DMRS for PBCH, DMRS for PDSCH, and DMRS for PDCCH.

A set of antenna ports for DMRS (DMRS related to PDSCH, DMRS included in PDSCH, DMRS corresponding to PDSCH) for PDSCH may be given based on the set of antenna ports for PDSCH. That is, the set of DMRS antenna ports for the PDSCH may be the same as the set of antenna ports for the PDSCH.

The transmission of the PDSCH and the transmission of the DMRS for the PDSCH may be indicated (or scheduled) in one DCI format. The PDSCH and the DMRS for the PDSCH may be collectively referred to as a PDSCH. Transmission of PDSCH may be transmission of PDSCH and DMRS for the PDSCH.

The PDSCH may be estimated from the DMRS for the PDSCH. That is, the propagation path of the PDSCH may be estimated from the DMRS for the PDSCH. If a set of resource elements to which a certain PDSCH symbol is transmitted and a set of resource elements to which a DMRS symbol for a certain PDSCH is transmitted are included in the same recording resource group (PRG: Precoding Resource Group). In some cases, the PDSCH to which the PDSCH symbol is transmitted at an antenna port may be estimated by the DMRS for the PDSCH.

The antenna port of DMRS for PDCCH (DMRS related to PDCCH, DMRS included in PDCCH, DMRS corresponding to PDCCH) may be the same as the antenna port for PDCCH. Twice

PDCCH may be estimated from DMRS for the PDCCH. That is, the propagation path of the PDCCH may be estimated from the DMRS for the PDCCH. If a set of resource elements to which a PDCCH symbol is transmitted and a set of resource elements to which a DMRS symbol for the PDCCH is transmitted, the same precoder is applied (assumed to be applied). If applicable), the PDCCH at which the PDCCH symbol is transmitted at an antenna port may be estimated by the DMRS for the PDCCH.

BCH (Broadcast CHannel), UL-SCH (Uplink-Shared CHannel) and DL-SCH (Downlink-Shared CHannel) are transport channels. The channels used in the MAC layer are called transport channels. The unit of the transport channel used in the MAC layer is also called a transport block (TB) or a MAC PDU (Protocol Data Unit). HARQ (Hybrid Automatic Repeat reQuest) is controlled for each transport block in the MAC layer. A transport block is a unit of data that the MAC layer delivers to the physical layer. In the physical layer, the transport block is mapped to a codeword, and modulation processing is performed for each codeword.

One UL-SCH and one DL-SCH may be given for each serving cell. BCH may be given to PCell. BCH does not have to be given to PSCell and SCell.

BCCH (Broadcast Control Channel), CCCH (Common Control Channel), and DCCH (Dedicated Control Channel) are logical channels. For example, BCCH is a MIB or RRC layer channel used to transmit system information. Further, CCCH (Common Control CHannel) may be used to transmit a common RRC message in a plurality of terminal devices 1. Here, CCCH may be used, for example, for a terminal device 1 that is not RRC-connected. Further, the DCCH (Dedicated Control CHannel) may be at least used for transmitting a dedicated RRC message to the terminal device 1. Here, the DCCH may be used, for example, for the terminal device 1 connected by RRC.

The RRC message contains one or more RRC parameters (information elements). For example, the RRC message may include a MIB. The RRC message may also include system information. The RRC message may also include a message corresponding to CCCH. Further, the RRC message may include a message corresponding to DCCH. An RRC message containing a message corresponding to a DCCH is also referred to as an individual RRC message.

BCCH in the logical channel may be mapped to BCH or DL-SCH in the transport channel. CCCH on the logical channel may be mapped to DL-SCH or UL-SCH on the transport channel. DCCH on the logical channel may be mapped to DL-SCH or UL-SCH on the transport channel.

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

The upper layer parameter (upper layer parameter) is a parameter included in the RRC message or MAC CE (Medium Access Control Control Element). That is, the upper layer parameter is a general term for the MIB, system information, the message corresponding to CCCH, the message corresponding to DCCH, and the parameters included in MAC CE. The parameters included in the MAC CE are transmitted by the MAC CE (Control Element) command.

The procedure performed by the terminal device 1 includes at least a part or all of the following 5A to 5C.
5A) cell search
5B) Random access
5C) data communication

The cell search is a procedure used for detecting a physical cell ID (physical cell identity) by synchronizing a cell with respect to a time domain and a frequency domain by the terminal device 1. That is, the terminal device 1 may detect the physical cell ID by synchronizing the time domain and the frequency domain with a certain cell by cell search.

The PSS sequence is given at least based on the physical cell ID. The SSS sequence is given at least based on the physical cell ID.

The SS / PBCH block candidate indicates a resource for which transmission of the SS / PBCH block is permitted (possible, reserved, set, specified, and possible).

The set of SS / PBCH block candidates in a certain half radio frame is also called an SS burst set. The SS burst set is also referred to as a transmission window (transmission window), an SS transmission window (SS transmission window), or a DRS transmission window (Discovery Reference Signal transmission window). The SS burst set is a general term including at least a first SS burst set and a second SS burst set.

The base station device 3 transmits one or a plurality of index SS / PBCH blocks at a predetermined cycle. The terminal device 1 may detect at least one SS / PBCH block of the SS / PBCH block of the one or more indexes and try to decode the PBCH contained in the SS / PBCH block.

Random access is a procedure that includes at least a part or all of message 1, message 2, message 3, and message 4.

Message 1 is a procedure in which PRACH is transmitted by the terminal device 1. The terminal device 1 transmits PRACH at one PRACH opportunity selected from one or more PRACH opportunities based on at least the index of SS / PBCH block candidates detected based on the cell search. Each PRACH opportunity is defined based on at least time domain and frequency domain resources.

The terminal device 1 transmits one random access preamble selected from the PRACH opportunities corresponding to the index of the SS / PBCH block candidate in which the SS / PBCH block is detected.

Message 2 is a procedure for attempting to detect DCI format 1_0 accompanied by CRC (Cyclic Redundancy Check) scrambled by RA-RNTI (Random Access-Radio Network Temporary Identifier) by the terminal device 1. The terminal device 1 includes the DCI format in the control resource set given based on the MIB included in the PBCH included in the SS / PBCH block detected based on the cell search, and the resource indicated based on the setting of the search area set. Attempts to detect PDCCH.

Message 3 is a procedure for transmitting a PUSCH scheduled by a random access response grant included in DCI format 1_0 detected by the message 2 procedure. Here, the random access response grant is indicated by the MAC CE included in the PDSCH scheduled according to the DCI format 1_0.

The PUSCH scheduled based on the random access response grant is either Message 3 PUSCH or PUSCH. Message 3 PUSCH includes a conflict resolution identifier (contention resolution identifier) MAC CE. Conflict resolution ID MAC CE includes a conflict resolution ID.

Message 3 PUSCH retransmissions are scheduled in DCI format 0_0 with a CRC scrambled based on TC-RNTI (Temporary Cell-Radio Network Temporary Identifier).

Message 4 is a procedure for attempting to detect DCI format 1_0 with CRC scrambled based on either C-RNTI (Cell-Radio Network Temporary Identifier) or TC-RNTI. The terminal device 1 receives the PDSCH scheduled based on the DCI format 1_0. The PDSCH may include a conflict resolution ID.

Data communication is a general term for downlink communication and uplink communication.

In data communication, the terminal device 1 attempts to detect PDCCH in the control resource set and the resource specified based on the search area set (monitors PDCCH, monitors PDCCH).

The control resource set is a set of resources composed of a predetermined number of resource blocks and a predetermined number of OFDM symbols. In the frequency domain, the control resource set may be composed of continuous resources (non-interleaved mapping) or distributed resources (interleaver mapping).

The set of resource blocks that make up the control resource set may be indicated by the upper layer parameters. The number of OFDM symbols that make up the control resource set may be indicated by the upper layer parameters.

The terminal device 1 attempts to detect PDCCH in the search area set. Here, the attempt to detect the PDCCH in the search area set may be an attempt to detect a PDCCH candidate in the search area set, or an attempt to detect the DCI format in the search area set. However, the control resource set may attempt to detect the PDCCH, the control resource set may attempt to detect the PDCCH candidate, or the control resource set may attempt to detect the DCI format. There may be.

The search area set is defined as a set of PDCCH candidates. The search area set may be a CSS (Common Search Space) set or a USS (UE-specific Search Space) set. The terminal device 1 includes a type 0 PDCCH common search area set (Type 0 PDCCH common search space set), a type 0a PDCCH common search area set (Type 0a PDCCH common search space set), and a type 1 PDCCH common search area set (Type 1 PDCCH common search space set). One of the type 2 PDCCH common search area set (Type2 PDCCH common search space set), the type 3 PDCCH common search area set (Type3 PDCCH common search space set), and / or the UE individual PDCCH search area set (UE-specific search space set). Attempts to detect PDCCH candidates in part or all.

The type 0PDCCH common search area set may be used as the common search area set of index 0. The type 0PDCCH common search area set may be a common search area set with index 0.

The CSS set is a general term for a type 0 PDCCH common search area set, a type 0a PDCCH common search area set, a type 1 PDCCH common search area set, a type 2 PDCCH common search area set, and a type 3 PDCCH common search area set. The USS set is also referred to as the UE individual PDCCH search area set.

A search area set is associated with (included, corresponds to) a control resource set. The index of the control resource set associated with the search area set may be indicated by the upper layer parameters.

For a set of search regions, some or all of 6A to 6C may be indicated by at least the upper layer parameters.
6A) PDCCH monitoring periodicity
6B) PDCCH monitoring pattern within a slot
6C) PDCCH monitoring offset

The monitoring opportunity of a certain search area set may correspond to an OFDM symbol in which the first OFDM symbol of the control resource set related to the certain search area set is arranged. The monitoring opportunity of a search region set may correspond to the resources of the control resource set starting with the first OFDM symbol of the control resource set associated with the search region set. The monitoring opportunity for the search region set is given at least based on the PDCCH monitoring interval, the PDCCH monitoring pattern in the slot, and some or all of the PDCCH monitoring offsets.

FIG. 8 is a diagram showing an example of a monitoring opportunity of the search area set according to one aspect of the present embodiment. In FIG. 8, the search area set 91 and the search area set 92 are set in the primary cell 301, the search area set 93 is set in the secondary cell 302, and the search area set 94 is set in the secondary cell 303.

In FIG. 8, the blocks indicated by the grid lines indicate the search area set 91, the blocks indicated by the upward-sloping diagonal line indicate the search area set 92, and the blocks indicated by the upward-sloping diagonal line indicate the search area set 93, which are indicated by horizontal lines. The blocks shown show the search area set 94.

The monitoring interval of the search area set 91 is set to 1 slot, the monitoring offset of the search area set 91 is set to 0 slot, and the monitoring pattern of the search area set 91 is [1,0,0,0,0,0, It is set to 0,1,0,0,0,0,0,0]. That is, the monitoring opportunity of the search region set 91 corresponds to the first OFDM symbol (OFDM symbol # 0) and the eighth OFDM symbol (OFDM symbol # 7) in each of the slots.

The monitoring interval of the search area set 92 is set to 2 slots, the monitoring offset of the search area set 92 is set to 0 slot, and the monitoring pattern of the search area set 92 is [1,0,0,0,0,0, It is set to 0,0,0,0,0,0,0,0]. That is, the monitoring opportunity of the search area set 92 corresponds to the first OFDM symbol (OFDM symbol # 0) in each of the even slots.

The monitoring interval of the search area set 93 is set to 2 slots, the monitoring offset of the search area set 93 is set to 0 slot, and the monitoring pattern of the search area set 93 is [0,0,0,0,0,0, It is set to 0,1,0,0,0,0,0,0]. That is, the monitoring opportunity of the search region set 93 corresponds to the eighth OFDM symbol (OFDM symbol # 7) in each of the even slots.

The monitoring interval of the search area set 94 is set to 2 slots, the monitoring offset of the search area set 94 is set to 1 slot, and the monitoring pattern of the search area set 94 is [1,0,0,0,0,0, It is set to 0,0,0,0,0,0,0,0]. That is, the monitoring opportunity of the search area set 94 corresponds to the first OFDM symbol (OFDM symbol # 0) in each of the odd slots.

The Type 0 PDCCH common search area set may at least be used for the DCI format with a CRC (Cyclic Redundancy Check) sequence scrambled by SI-RNTI (System Information-Radio Network Temporary Identifier).

The Type 0a PDCCH common search region set may at least be used for the DCI format with a CRC (Cyclic Redundancy Check) sequence scrambled by SI-RNTI (System Information-Radio Network Temporary Identifier).

The type 1 PDCCH common search area set includes a CRC series scrambled by RA-RNTI (Random Access-Radio Network Temporary Identifier) and / or a CRC series scrambled by TC-RNTI (Temporary Cell-Radio Network Temporary Identifier). It may be used at least for the accompanying DCI format.

The Type 2 PDCCH common search region set may be used for the DCI format with CRC sequences scrambled by P-RNTI (Paging-Radio Network Temporary Identifier).

The Type 3 PDCCH common search region set may be used for the DCI format with CRC sequences scrambled by C-RNTI (Cell-Radio Network Temporary Identifier).

The UE individual PDCCH search region set may be at least used for DCI formats with CRC sequences scrambled by C-RNTI.

In downlink communication, the terminal device 1 detects the downlink DCI format. The detected downlink DCI format is at least used for PDSCH resource allocation. The detected downlink DCI format is also referred to as a downlink assignment. The terminal device 1 attempts to receive the PDSCH. Based on the PUCCH resource indicated based on the detected downlink DCI format, the HARQ-ACK corresponding to the PDSCH (HARQ-ACK corresponding to the transport block included in the PDSCH) is reported to the base station apparatus 3.

In uplink communication, the terminal device 1 detects the uplink DCI format. The detected DCI format is at least used for PUSCH resource allocation. The detected uplink DCI format is also referred to as an uplink grant. The terminal device 1 transmits the PUSCH.

In the set scheduling (configured grant), the uplink grant that schedules the PUSCH is set for each transmission cycle of the PUSCH. When the PUSCH is scheduled by the uplink DCI format, some or all of the information presented by the uplink DCI format may be presented by the uplink grant set in the case of the scheduling set.

The time resource of one or more PUSCHs may be determined by the allocation of the time resource of PUSCH indicated by the uplink grant. That is, one uplink grant may schedule one or more PUSCHs. In the following, "one or more PUSCH" may be referred to as "PUSCH". In particular, "one or more PUSCHs" may be referred to as "PUSCHs" when the technical content can be described without distinguishing each of the one or more PUSCHs.

The PUSCH format may be given at least in part or all of the transport block placement period, the modulation symbol sequence placement period, the DMRS placement period for the PUSCH, and the PUSCH coherence period. good. When the terminal device 1 transmits the PUSCH, the terminal device 1 has one of a transport block arrangement cycle, a modulation symbol series arrangement cycle, a DMRS arrangement cycle for the PUSCH, and a coherence cycle of the PUSCH. The format of the PUSCH may be determined based on at least a portion or all. When the base station device 3 receives the PUSCH transmitted from the terminal device 1, the base station device 3 has a transport block placement cycle, a modulation symbol sequence placement cycle, a DMRS placement cycle for the PUSCH, and a DMRS placement cycle. , The format of the PUSCH may be determined based on at least a part or all of the coherence period of the PUSCH.

For example, in a certain PUSCH format, the PUSCH time resource is 8 slots, the transport block placement cycle is 4 slots, the modulation symbol sequence placement cycle is 2 slots, and the DMRS for the PUSCH. The arrangement cycle may be 2 slots and the coherence cycle of the PUSCH may be 4 slots. Here, by setting the coherence period of the PUSCH to be equal to the arrangement period of the transport block, the channel estimation used for demodulation / decoding of the transport block can be collectively performed, and thus the transmission characteristics are expected to be improved. Maybe.

For example, in a certain PUSCH format, the PUSCH time resource is 8 slots, the transport block placement cycle is 8 slots, the modulation symbol sequence placement cycle is 1 slot, and the DMRS for the PUSCH. The arrangement cycle may be 1 slot and the coherence cycle of the PUSCH may be 4 slots. Here, by shortening the DMRS placement cycle with respect to the PUSCH coherence cycle, it is possible to increase the number of DMRS resources in the time domain that can be used for one channel estimation, and thus improvement in transmission characteristics may be expected. No.

For example, in a PUSCH format, the PUSCH time resource is 8 slots, the transport block placement period is 8 slots, the modulation symbol sequence placement period is 4 slots, and the DMRS for the PUSCH. The arrangement cycle may be one slot, and the coherence cycle of the PUSCH may be one slot. Here, by setting the arrangement period of the sequence of the modulation symbols to be long, the modulation symbols of the coding bits can be arranged more effectively in the time domain, so that the transmission characteristic may be expected.

For example, the PUSCH time resource indicated by the uplink grant may include multiple slots. Here, even when the time resource of the PUSCH indicated by one uplink grant is included in the plurality of slots, the number of PUSCHs may be one or may be plural. For example, if PUSCH is defined for each slot, PUSCH may be the same as the number of slots.

FIG. 9 is a diagram showing an example of the PUSCH format according to one aspect of the present embodiment. In FIG. 9, the horizontal axis represents the time axis. Further, in FIG. 9, a plurality of slots (8 slots in FIG. 9) are shown on the time axis. Here, the plurality of slots in FIG. 9 are indexed in chronological order from slot # 0 (slot # 0) to slot # 7 (slot # 7). In FIG. 9, the plurality of slots are arranged continuously in the time domain, but the aspect of the present invention is not limited to the plurality of slots being arranged continuously in the time domain. For example, in the aspect of the present invention, the plurality of slots may be composed of slots capable of uplink transmission. That is, in the aspect of the present invention, a plurality of slots may not include slots capable of downlink transmission.

In the example shown in FIG. 9, one uplink grant may indicate a PUSCH transmitted in eight slots including slot # 0 to slot # 7. Here, the PUSCH may include one transport block. Here, the arrangement cycle (TB mapping period) of the transport block of the PUSCH may be 8 slots. Further, the modulation symbol mapping period of the series of modulation symbols of the PUSCH may be 4 slots. Further, the DMRS mapping period for the PUSCH may be 2. Further, the DMRS coherence period (Channel coherence) for the PUSCH may be 2.

The arrangement cycle of the transport block may correspond to the number of slots including a certain transport block. For example, the transport block may be arranged over a length X0 of one period of the arrangement cycle of the transport block. For example, X0 may be determined at least based on RRC parameters. For example, X0 may be indicated by an RRC parameter. For example, X0 may be determined at least based on the signal of the upper layer. For example, X0 may be indicated by an upper layer signal. For example, X0 may be indicated by the uplink grant used to schedule the PUSCH transmitted including the transport block. For example, X0 may be determined at least based on the uplink grant used to schedule the PUSCH transmitted including the transport block. For example, X0 may be represented by one DCI format. For example, X0 may be determined based on at least one DCI format.

For example, X0 may indicate the number of slots. For example, X0 may indicate the number of OFDM symbols.

For example, X0 may be given at least based on the configuration of the PUSCH time domain (eg, the PUSCH time resource) scheduled by one uplink grant. For example, X0 may be determined at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, the terminal device 1 may determine X0 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, the base station apparatus 3 may determine X0 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.

By controlling X0 based on at least the configuration of the PUSCH time domain, the desired data rate may be achieved regardless of the configuration of the PUSCH time domain. In dynamic TDD and the like, it is not always possible to always use a predetermined configuration as the configuration of the time domain of PUSCH, and control of X0 is preferable.

For example, when the configuration of the time domain of PUSCH is the first configuration, X0 may be the first value. Further, when the configuration of the time domain of PUSCH is a second configuration different from the first configuration, X0 may be a second value different from the first value. For example, when the time resource of PUSCH is the number of first slots, X0 may be the first value. Further, when the time resource of PUSCH is a second slot different from the first slot, X0 may be a second value different from the first value.

For example, the configuration of the PUSCH time domain may be the number of slots in which the PUSCH is arranged. For example, the configuration of the PUSCH time domain may be the number of OFDM symbols in which the PUSCH is placed. For example, the PUSCH time domain configuration may be the DMRS time domain configuration for the PUSCH.

FIG. 10 is a diagram showing an example of arrangement of modulation symbols according to one aspect of the present embodiment. In FIG. 10, the horizontal axis represents the time axis and the vertical axis represents the frequency axis. Further, in FIG. 10, each of the blocks spread in the time frequency domain shows one resource element. Further, in FIG. 10, a configuration in which x1 slots are arranged is shown.

The sequence of modulation symbols generated from one transport block may be arranged in the resource element included in x1 slot based on the frequency-first time-second manner. The frequency first time second method may be a method in which modulation symbols are arranged on a plurality of resource elements arranged in the time frequency domain based on the following procedure. Step 1) Identify the first set of resource elements in the time domain and proceed to step 2 Step 2) Place modulation symbols in order from the first resource element in the frequency domain in the specified set of resource elements 3) Compare with the identified set of resource elements, identify the next set of resource elements in the time domain, and proceed to step 2).

For example, procedure 1 in FIG. 10 may specify a set of resource elements including at least resource element A1, resource element A2, and resource element A3. Further, the procedure 2 in FIG. 10 may be to arrange the modulation symbols in order from the resource element A1 through the resource element A2 to the resource element A3. Further, the procedure 3 in FIG. 10 may specify a set of resource elements including at least the resource element A4, the resource element A5, and the resource element A6. Further, the procedure 2 after the procedure 3 in FIG. 10 may be to arrange the modulation symbols in order from the resource element A4 through the resource element A5 to the resource element A6.

For example, the sequence of modulation symbols generated from one transport block may be arranged based on the frequency first time second method with respect to the resource element included in the length X1 of one cycle of the modulation symbol arrangement cycle. For example, X1 may be indicated by an RRC parameter. For example, X1 may be determined at least based on RRC parameters. For example, X1 may be determined at least based on the signal of the upper layer. For example, X1 may be indicated by an uplink grant used to schedule the PUSCH transmitted including the transport block. For example, X1 may be determined at least based on the uplink grant used to schedule the PUSCH transmitted including the transport block. For example, X1 may be represented by one DCI format. For example, X1 may be determined based on at least one DCI format.

For example, X1 may indicate the number of slots. For example, X1 may indicate the number of OFDM symbols.

For example, when the terminal device 1 determines X1 based on at least the first control information, the sequence of modulation symbols generated from one transport block is included in the length X1 of one cycle of the arrangement cycle of the sequence of modulation symbols. It may be arranged based on the frequency first time second method with respect to the resource element. For example, the first control information may be included in the RRC parameter, the upper layer signal, the uplink grant used to schedule the PUSCH transmitted including the transport block, and part or all of one DCI format. It may be determined at least on the basis.

Even when the terminal device 1 holds the first control information, the sequence of modulation symbols generated from the transport block included in the message 3 PUSCH is frequency-first with respect to the resource element included in one slot. It may be arranged based on the time second method. That is, even when the terminal device 1 holds the first control information, X1 may be one slot for the transport block included in the message 3 PUSCH.

For example, holding a certain control information in the terminal device 1 may mean that the terminal device 1 is set based on the certain control information. For example, holding a certain control information in the terminal device 1 may mean that the terminal device 1 performs a process based on the certain control information.

For example, the fact that the terminal device 1 holds the first control information may mean that the terminal device 1 holds X1. For example, the first control information may be information indicating X1. For example, the first control information is information other than the information indicating X1, but may be information used to determine the X1.

Even when the terminal device 1 holds the first control information, the sequence of modulation symbols generated from the transport block included in the PUSCH scheduled by the random access response grant is a resource element included in one slot. On the other hand, it may be arranged based on the frequency first time second method. That is, even when the terminal device 1 holds the first control information, X1 may be one slot for the transport block included in the PUSCH scheduled by the random access response grant.

When the terminal device 1 does not hold the first control information, the sequence of modulation symbols generated from the transport block included in the PUSCH is in the frequency first time second system for the resource element contained in one slot. It may be arranged based on. That is, when the terminal device 1 does not hold the first control information, X1 may be one slot with respect to the transport block included in the PUSCH.

For example, X1 may be given at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, X1 may be determined at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, the terminal device 1 may determine X1 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, the base station apparatus 3 may determine X1 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.

By controlling X1 based on at least the configuration of the PUSCH time domain, it may be possible to suitably arrange the modulation symbols of the coding bits based on the configuration of the PUSCH time domain.

For example, when the configuration of the time domain of PUSCH is the first configuration, X1 may be the first value. Further, when the configuration of the time domain of PUSCH is a second configuration different from the first configuration, X1 may be a second value different from the first value. For example, when the time resource of PUSCH is the number of first slots, X1 may be the first value. Further, when the time resource of PUSCH is a second slot different from the first slot, X1 may be a second value different from the first value.

For example, X1 may be given at least based on X0. For example, X1 may be determined at least based on X0. For example, the terminal device 1 may determine X1 based on at least X0. For example, the base station apparatus 3 may determine X1 based on at least X0.

By controlling X1 based on at least X0, it may be possible to preferably arrange the modulation symbols of the coding bits based on the arrangement period of the transport block.

For example, when X0 is the first value, X1 may be the second value. Further, when X0 is a third value different from the first value, X1 may be a fourth value different from the second value.

For example, a sequence of modulation symbols may be generated by modulation of a sequence of coded bits resulting from one transport block. For example, the modulation method may be QPSK (Quadarature Phase Shift Keying), 16QAM (Quadarature Amplitude Modulation), 64QAM, 256QAM, (1/2) π BPSK (Binary Phase Shift Keying). Here, a predetermined scramble may be performed on the sequence of encoded bits prior to the generation of the sequence of modulation symbols.

For example, the position of the coding bit included in the first modulation symbol in the sequence of modulation symbols may be given by RV (RedandancyVersion). RV is information indicating the position of the first coding bit in the series of coding bits used in the generation of the series of modulation symbols. For example, the information indicating the RV is contained in at least one of the RRC parameters, the upper layer signal, the uplink grant used for the scheduling information of the PUSCH transmitted including the transport block, or one DCI format. May be good. For example, the RV may be given at least based on either an RRC parameter, an upper layer signal, an uplink grant used for PUSCH scheduling information transmitted including a transport block, or one DCI format. ..

For example, one RV may be given for each cycle of the arrangement cycle of the sequence of modulation symbols. For example, a coding bit included in the first modulation symbol of the series of modulation symbols may be given for each cycle of the arrangement cycle of the series of modulation symbols. For example, the information indicating each of the RVs for each placement cycle of the sequence of modulation symbols is the uplink used for the PUSCH scheduling information transmitted including the RRC parameter, the upper layer signal, and the transport block. It may be included in either the grant or at least one DCI format. For example, one RV per cycle of the sequence of modulation symbols can be an uplink grant or 1 used for PUSCH scheduling information transmitted including RRC parameters, upper layer signals, and transport blocks. It may be determined based on at least one of the two DCI formats.

In the example shown in FIG. 9, one RV may be shown for one cycle including slot # 0 to slot # 3, and one RV may be shown for one cycle including slot # 4 to slot # 7. May be shown.

For example, in a PUSCH scheduled by one uplink grant, one RV is shown for the first cycle of the placement cycles of the sequence of one or more modulation symbols included in the PUSCH time domain. May be good. Here, the information indicating the one RV is either the uplink grant used for the scheduling information of the PUSCH transmitted including the RRC parameter, the signal of the upper layer, and the transport block, or at least one of the DCI formats. May be included in. Here, the RV for each of the arrangement cycles of the sequence of one or a plurality of modulation symbols included in the time domain of the PUSCH other than the first one cycle may be given at least based on the one RV. ..

The DMRS placement cycle is the cycle in which the DMRS placement pattern in the time domain is applied. For example, when the length of one DMRS arrangement cycle is X2, the DMRS arrangement pattern in the time domain may be applied for each length X2.

For example, the DMRS placement pattern may be information indicating a set of indexes of OFDM symbols to which DMRS is mapped at length X2. Here, the index of the OFDM symbol may be the index of the OFDM symbol with reference to the reference point (OFDM symbol whose index is considered to be 0). For example, the reference point for a certain cycle of the DMRS arrangement cycle included in the time domain of PUSCH may be the first OFDM symbol included in the one cycle. For example, the reference point for a certain cycle of the DMRS arrangement cycle included in the time domain of PUSCH may be determined by a certain OFDM symbol included in the one cycle. For example, X2 may be determined at least based on RRC parameters. For example, X2 may be indicated by an RRC parameter. For example, X2 may be determined at least based on the signal of the upper layer. For example, X2 may be indicated by the parameters of the upper layer. For example, X2 may be indicated by an uplink grant used to schedule the PUSCH transmitted including the transport block. For example, X2 may be determined at least based on the uplink grant used to schedule the PUSCH transmitted including the transport block. For example, X2 may be represented by one DCI format. For example, X2 may be determined based on at least one DCI format.

For example, X2 may indicate the number of slots. For example, X2 may indicate the number of OFDM symbols.

That is, when the terminal device 1 determines X2 based on at least the second control information, the DMRS arrangement pattern for PUSCH may be applied to each X2 slot. For example, the second control information may be determined at least based on RRC parameters, higher layer signals, uplink grants used to schedule the PUSCH, and part or all of one DCI format.

Even when the terminal device 1 holds the second control information, the DMRS arrangement pattern for the message 3 PUSCH may be applied for each slot. That is, even when the terminal device 1 holds the second control information, X2 may be one slot for the message 3 PUSCH.

For example, the fact that the terminal device 1 holds the second control information may mean that the terminal device 1 holds X2. For example, the second control information may be information indicating X2. For example, the second control information is information other than the information indicating X2, but may be information used to determine the X2.

Even when the terminal device 1 holds the second control information, the DMRS arrangement pattern for PUSCH scheduled by the random access response grant may be applied for each slot. That is, even when the terminal device 1 holds the second control information, X2 may be one slot for the PUSCH scheduled by the random access response grant.

When the terminal device 1 does not hold the second control information, the DMRS arrangement pattern for PUSCH may be applied for each slot. That is, when the terminal device 1 does not hold the second control information, X2 may be one slot with respect to PUSCH.

For example, X2 may be given at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, X2 may be determined at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, the terminal device 1 may determine X2 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, the base station apparatus 3 may determine X2 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.

By controlling X2 based on at least the configuration of the PUSCH time domain, it may be possible to preferably implement the arrangement of DMRS based on the configuration of the PUSCH time domain. Since the density of DMRS in the time domain is controlled by X2, the density of DMRS in a suitable time domain may be different if the composition of the time domain of PUSCH is different.

For example, when the configuration of the time domain of PUSCH is the first configuration, X2 may be the first value. Further, when the configuration of the time domain of PUSCH is a second configuration different from the first configuration, X2 may be a second value different from the first value. For example, when the time resource of PUSCH is the number of first slots, X2 may be the first value. Further, when the time resource of PUSCH is a second slot different from the first slot, X2 may be a second value different from the first value.

For example, X2 may be given at least based on X0. For example, X2 may be determined at least based on X0. For example, the terminal device 1 may determine X1 based on at least X0. For example, the base station apparatus 3 may determine X1 based on at least X0.

By controlling X2 based on at least X0, it may be possible to preferably perform the arrangement of DMRS based on the arrangement cycle of the transport block.

For example, when X0 is the first value, X2 may be the second value. Further, when X0 is a third value different from the first value, X2 may be a fourth value different from the second value.

For example, X2 may be given at least based on X1. For example, X2 may be determined at least based on X1. For example, the terminal device 1 may determine X2 based on at least X1. For example, the base station apparatus 3 may determine X2 based on at least X1.

By controlling X2 based on at least X1, it may be possible to preferably perform the arrangement of DMRS based on the arrangement period of the sequence of modulation symbols. Since the arrangement of the modulation symbol series and the arrangement of the DMRS are the same layer processing (resource element mapping layer processing), for example, X2 = X1 may be set.

For example, when X1 is the first value, X2 may be the second value. Further, when X1 is a third value different from the first value, X2 may be a fourth value different from the second value.

The coherence cycle may be a cycle in which the radio section information can be regarded as the same. For example, the radio section information may be information on the phase and / or amplitude that fluctuates as the modulation symbol placed in a resource element is transmitted to the radio section. The radio section information may be information including the influence of the precoder applied prior to the transmission of the modulated symbol.

The terminal device 1 does not have to generate the PUSCH so that the radio section information is considered to be the same beyond the coherence period. The terminal device 1 may generate a PUSCH so that the radio section information is considered to be the same within the coherence cycle.

The base station device 3 does not have to consider that the radio section information is the same beyond the coherence cycle. The base station apparatus 3 may consider that the radio section information is the same within the coherence cycle.

For example, one modulation symbol in the coherence cycle may be able to estimate the radio section information of another modulation symbol in the coherence cycle. Further, the coherence cycle may be set so that a modulation symbol in the coherence cycle can estimate the radio section information of another modulation symbol in the coherence cycle.

For example, the length X3 of one cycle of the PUSCH coherence cycle may be determined at least based on the RRC parameter. For example, X3 may be indicated by an RRC parameter. For example, X3 may be determined at least based on the signal of the upper layer. For example, X3 may be indicated by an upper layer signal. For example, X3 may be indicated by an uplink grant used to schedule the PUSCH transmitted including the transport block. For example, X3 may be determined at least based on the uplink grant used to schedule the PUSCH transmitted including the transport block. For example, X3 may be represented by one DCI format. For example, X3 may be determined based on at least one DCI format.

That is, when the terminal device 1 determines X3 based on at least the third control information, it may be considered that the radio section information is the same in the X3 slot. For example, the third control information may be determined at least based on RRC parameters, higher layer signals, uplink grants used to schedule the PUSCH, and part or all of one DCI format.

Even when the terminal device 1 holds the third control information, the radio section information for the message 3 PUSCH may be regarded as the same radio section information in one slot. That is, even when the terminal device 1 holds the third control information, X3 may be one slot for the message 3 PUSCH.

For example, the fact that the terminal device 1 holds the third control information may mean that the terminal device 1 holds X3. For example, the third control information may be information indicating X3. For example, the third control information is information other than the information indicating X3, but may be information used to determine the X3.

Even when the terminal device 1 holds the third control information, the radio section information for PUSCH scheduled by the random access response grant is considered to have the same radio section information in one slot. May be good. That is, even when the terminal device 1 holds the third control information, X3 may be one slot for the PUSCH scheduled by the random access response grant.

When the terminal device 1 does not hold the third control information, the radio section information for PUSCH may be regarded as the same radio section information in one slot. That is, when the terminal device 1 does not hold the third control information, X3 may be one slot with respect to PUSCH.

For example, X3 may be given at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, X3 may be determined at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, the terminal device 1 may determine X3 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, the base station apparatus 3 may determine X3 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.

By controlling X3 based on at least the configuration of the PUSCH time domain, it may be possible to suitably control the operation of channel estimation of the base station apparatus 3 based on the configuration of the PUSCH time domain.

For example, when the configuration of the time domain of PUSCH is the first configuration, X3 may be the first value. Further, when the configuration of the time domain of PUSCH is a second configuration different from the first configuration, X3 may be a second value different from the first value. For example, when the time resource of PUSCH is the number of first slots, X3 may be the first value. Further, when the time resource of PUSCH is a second slot different from the first slot, X3 may have a second value different from the first value.

For example, X3 may be given at least based on X0. For example, X3 may be determined at least based on X0. For example, the terminal device 1 may determine X3 based on at least X0. For example, the base station apparatus 3 may determine X3 based on at least X0.

By controlling X3 based on at least X0, it may be possible to suitably control the operation of channel estimation of the base station apparatus 3 based on the arrangement cycle of the transport block.

For example, when X0 is the first value, X3 may be the second value. Further, when X0 is a third value different from the first value, X3 may be a fourth value different from the second value.

For example, X3 may be given at least based on X1. For example, X3 may be determined at least based on X1. For example, the terminal device 1 may determine X3 based on at least X1. For example, the base station apparatus 3 may determine X3 based on at least X1.

By controlling X3 based on at least X1, it may be possible to suitably control the operation of channel estimation of the base station apparatus 3 based on the arrangement cycle of the sequence of modulation symbols.

For example, when X1 is the first value, X3 may be the second value. Further, when X1 is a third value different from the first value, X3 may be a fourth value different from the second value.

For example, X3 may be given at least based on X2. For example, X3 may be determined at least based on X2. For example, the terminal device 1 may determine X3 based on at least X2. For example, the base station apparatus 3 may determine X3 based on at least X2.

By controlling X3 based on at least X2, it may be possible to suitably control the operation of channel estimation of the base station apparatus 3 based on the arrangement cycle of DMRS. Since the density in the time domain can be controlled by the arrangement cycle of the DMRS, it is preferable to control the operation of the channel estimation of the base station apparatus 3.

For example, when X2 is the first value, X3 may be the second value. Further, when X2 is a third value different from the first value, X3 may be a fourth value different from the second value.

For example, X2 may be given at least based on X3. For example, X2 may be determined at least based on X3. For example, the terminal device 1 may determine X2 based on at least X3. For example, the base station apparatus 3 may determine X2 based on at least X3.

As shown in FIG. 9, the arrangement period of the transport block, the arrangement period of the sequence of modulation symbols, the arrangement period of DMRS for the PUSCH, and the coherence period of the PUSCH may be different values. It may be set individually.

For example, in one cycle of the coherence cycle, the terminal device 1 may apply the same pre-recording. For example, in one cycle of the coherence cycle, the terminal device 1 may apply the same spatial filter.

FIG. 11 is a diagram showing a configuration example of the wireless transmission / reception unit 10 according to one aspect of the present embodiment. Here, the configuration of the wireless transmission / reception unit 30 is the same as, or at least similar to, the configuration of the wireless transmission / reception unit 10. In FIG. 11, the transport block is input to the channel coding / scrambling / modulation unit 10aa. In the channel coding / scrambling / modulation unit 10aa, the sequence of coding bits _bc is generated by applying the channel coding procedure to the input transport block. Here, the transport block is also referred to as a code word. Further, here, the procedure of channel coding includes addition of a CRC series to a transport block, division of the transport block to which the CRC is added into a code block, coding of the code block, and coding. It may include at least some or all of the interleaves of the sequence of bits.

In channel coding / scrambling / modulation unit lOaa, relative sequence b _k coded bits, by a predetermined scrambling sequence is applied, series b ^a _k of scrambled coded bits are generated.

In channel coding / scrambling / modulation unit lOaa, for streams to b ^a _k of scrambled coded bits by modulation is applied, the sequence d _k of modulation symbols are generated. For example, the modulation may be QPSK, 16QAM, 64QAM, 256QAM, or (1/2) π BPSK.

In the layer mapping unit 10ab, _{by distributing the sequence d k} of the modulation symbols to ν layers, the sequence x ^(λ) _{k of} ν modulation symbols is generated. For example, ν may be an integer of 1 or more. Here, λ is the index of the layer and indicates any of the integer values in the range of 0 to ν-1.

For example, the modified programming may or may not be applied to each of the ν modulation symbol sequence x ^(λ) _{k after layer mapping.}

^{In the precoding section 10ac, the precoding is applied to the sequence x (λ)} _k of ν modulation symbols after layer mapping by applying the precoding as shown in the mathematical formula (1). A sequence of modulation symbols z ^(pλ) _k is generated.

In mathematical formula (1), W is a matrix used for pre-recording. Here, the number of elements in the row (horizontal axis) of the matrix W is ρ. The number of elements in the column (vertical axis) of the matrix W is ν. Further, p _ξ indicates an antenna port having an index ξ. Here, ξ is the index of the antenna port and indicates any of the integer values in the range of 0 to ρ-1.

For example, in non-codebook based transmission, the matrix W may be an identity matrix. For example, in a codebook based transmission, the matrix W may be represented by the DCI format that schedules the PUSCH. For example, in codebook-based transmission, the matrix W may be indicated by RRC parameters, or the matrix W may be given at least based on RRC parameters. For example, W = 1 may be set when the PUSCH is transmitted on a single antenna port (when ρ = 1) regardless of the non-codebook-based transmission and the codebook-based transmission.

For example, whether non-codebook-based transmission or codebook-based transmission is applied to PUSCH may be indicated by an RRC parameter. For example, whether non-codebook-based transmission or codebook-based transmission is applied to PUSCH may be determined at least based on RRC parameters.

FIG. 12 is a diagram showing a candidate of the matrix W for the transmission of the PUSCH of one layer when the four antenna ports according to one aspect of the present embodiment are used. The candidate of the matrix W is also called a codebook. In FIG. 12, the upper part of the list shows the index of TPMI (Transmission Precoding Matrix Indicator), and the lower part of the list shows the codebook corresponding to the index of the upper part. In FIG. 12, j is an imaginary unit.

Codebooks can be classified into three types of codebook groups. The first codebook group is configured to include a codebook in which only one element is non-zero and the other elements are zero among the plurality of elements constituting one codebook. .. In FIG. 12, four codebooks corresponding to any of indexes 0 to 3 are included in the first codebook group. The first codebook group may be utilized to switch antenna ports used for PUSCH transmission. The codebook included in the first codebook group may be used at least when there is no coherence between the plurality of antenna ports included in the terminal device 1. The lack of coherence between multiple antenna ports means that the characteristics of the signal transmitted from each of the multiple antenna ports include transmission timing, transmission power, expected reception power, and part of the initial phase of the signal. Or it may not be possible to guarantee that everything is the same.

The second codebook group is a code in which elements having a number greater than 1 are non-zero and elements other than the elements having a number greater than 1 are zero among the plurality of elements constituting one codebook. Consists of a book. In FIG. 12, eight codebooks corresponding to any of indexes 4 to 11 are included in the second codebook group. The codebooks included in the second codebook group include, among the plurality of antenna ports included in the terminal device 1, 1) the first antenna port and the second antenna port have coherence, and 2) the second antenna port. The first antenna port and the third antenna port may be used at least in the absence of coherence. Here, the fact that there is coherence between the plurality of antenna ports means that among the characteristics of the signals transmitted from each of the plurality of antenna ports, the transmission timing, the transmission power, the expected reception power, and the initial phase of the signal. It may be possible to guarantee that some or all of the above are the same.

The second codebook group may be divided into a plurality of codebook subgroups. For example, in FIG. 12, the codebook corresponding to any of indexes 4 to 7 may be included in the first codebook subgroup, and the codebook corresponding to any of indexes 8 to 11 may be included in the first codebook subgroup. It may be included in a second codebook subgroup. Here, in the codebook included in the first codebook subgroup, the first element from the top and the third element from the top of the codebook are non-zero, and the top of the codebook. It is a codebook in which the second element from the top and the fourth element from the top are zero. Further, in the codebook included in the second codebook subgroup, the first element from the top and the third element from the top of the codebook are zero, and the codebook included in the second codebook has two elements from the top. A codebook in which the third element and the fourth element from the top are non-zero. That is, each of the codebooks included in one codebook subgroup may be a codebook containing non-zero elements at the same position as each other.

The third codebook group is composed of a codebook in which all of the plurality of elements constituting one codebook are non-zero. In FIG. 12, 16 codebooks corresponding to any of indexes 12 to 27 may be included in the third codebook group. The codebook included in the third codebook group may be used at least when there is coherence between the plurality of antenna ports included in the terminal device 1.

The terminal device 1 may report the functional information indicating the codebook group supported by the terminal device 1 to the base station device 3. Here, the functional information may be information that can indicate at least a part or all of the states 1, the state 2, and the state 3. Here, in the state 1, the pre-recording of the PUSCH based on the first codebook group is supported, the pre-recording of the PUSCH based on the second codebook group is not supported, and the PUSCH based on the third codebook group is not supported. The state of the terminal device 1 may be such that the recording of the above is not supported. Also, in state 2, PUSCH pre-recording based on the first codebook group is supported, PUSCH pre-recording based on the second codebook group is supported, and PUSCH pre-recording based on the third codebook group is supported. The state of the terminal device 1 may be such that recording is not supported. Also, in state 3, PUSCH pre-recording based on the first codebook group is supported, PUSCH pre-recording based on the second codebook group is supported, and PUSCH pre-recording based on the third codebook group is supported. The state of the terminal device 1 may be such that recording is supported.

For example, functional information may be included in RRC signaling.

Time signal generation (time-signal generation) unit 10ad generates antenna port p series precoded modulation symbols ^{_λ z _{_(pλ)}} based on the _k time signal ^{s (pλ) (t).} The time signal generation procedure may include at least some or all of the procedure for arranging ^{the sequence z (pλ)} _k of the pre-recorded modulation symbols of _{the antenna port p λ on the resource element and the generation of the OFDM signal.} Here, t is a variable on the time axis.

The spatial filter (Spatial filter) section 10ae applies the spatial filter to the antenna port p _lambda time signal ^{s (pλ) (t),} and generates a time signal ^{u (pλ) (t).} Spatial filters are also referred to as analog beams, transmission beams, beams, spatial relationships, spatial processing, and the like. For example, the spatial filter may be determined by a combination of a plurality of phasers. For example, the spatial filter may be determined by the power intensity pattern of the antenna or the like.

The antenna (Antennas) unit 10af sends a time signal u ^(pλ) (t) to the radio space.

The antenna unit 10bf receives the time signals u ^(pλ) (t) transmitted to the radio space.

Spatial filter section 10be applies a spatial filter to the received time signal ^{u (pλ) (t),} to restore the antenna port p _lambda time signal ^{s (pλ) (t).}

Frequency signal generation (Freq-signal generation) unit 10bd restores the frequency signal ^{z _(pλ)} _k based on antenna port p _lambda time signal ^{s (pλ) (t).}

Channel demodulation (Channel stands for demodulation) unit 10bc for frequencies signal ^{z _(pλ)} _k antenna port p _lambda, the application of channel demodulation based on DMRS, to restore the sequence x _{^(lambda) k} of modulation symbols. The channel demodulation procedure may include at least some or all of the DMRS phase variation estimation and some or all of the phase demodulation based on the estimated phase variation.

The layer de-mapping unit 10bb restores the modulation symbol _{sequence d k} by demapping the ^{modulation symbol sequence x (λ)} _k .

The channel decoding / de-scrambling / de-modulation unit 10ba _{demodulates the sequence d k of the} modulation symbols and restores ^{the sequence b a} _k of the scrambled coded bits.

Channel decoding / descrambling / demodulation unit 10ba is a sequence b ^a _k of scrambled coded bits descrambling, to restore the sequence b _k coded bits.

The channel decoding / descramble / demodulation unit 10ba _{channel-decodes the sequence b k} of the coded bits and restores the transport block.

For example, the terminal device 1 may apply a spatial filter in transmitting an uplink signal. Here, the uplink physical signal is a general term for the uplink physical channel and the uplink physical signal.

FIG. 13 is a diagram showing an example of a space filter management method of the terminal device 1 according to one aspect of the present embodiment. The terminal device 1 includes a management function (Management function) 16000. In FIG. 13, the management function 16000 includes a spatial filter 16001 to a spatial filter 16032. That is, in FIG. 13, the terminal device 1 can adaptively use 32 spatial filters to transmit an uplink signal. Here, the set of spatial filters included in the management function 16000 is referred to as a spatial filter set. The management function 16000 may include a predetermined number of spatial filters. The predetermined number is not limited to 32.

The terminal device 1 monitors the downlink physical signal transmitted periodically or aperiodically. In FIG. 13, the terminal device 1 monitors the downlink physical signal (DL RS) 16101 and the downlink physical signal 16102. The terminal device 1 may apply and receive any of the spatial filters in the spatial filter set for each resource of the downlink physical signal 16101. Here, the terminal device 1 determines a suitable spatial filter for monitoring the downlink physical signal 16101. In addition, the terminal device 1 associates a spatial filter suitable for monitoring the downlink physical signal 16101 with the downlink physical signal 16101. In FIG. 13, the spatial filter 16009 is associated with the downlink physical signal 16101. Further, the terminal device 1 may apply and receive any of the spatial filters in the spatial filter set for each resource of the downlink physical signal 16102. Here, the terminal device 1 determines a suitable spatial filter for monitoring the downlink physical signal 16102. In addition, the terminal device 1 associates a spatial filter suitable for monitoring the downlink physical signal 16102 with the downlink physical signal 16102. In FIG. 13, the spatial filter 16028 is associated with the downlink physical signal 16102.

The terminal device 1 transmits an uplink physical signal periodically or aperiodically. In FIG. 13, the terminal device 1 transmits an uplink physical signal (ULRS) 16103. The terminal device 1 associates one spatial filter with the uplink physical signal 16103. The terminal device 1 transmits the uplink physical signal 16103 using one associated spatial filter. In FIG. 13, the spatial filter 16024 is associated with the uplink physical signal 16103.

The base station device 3 may notify the space-related information for granting / scheduling / setting the uplink signal transmitted by the terminal device 1. For example, the space-related information may be information indicating an index of a downlink physical signal. Here, a spatial filter associated with the spatially related information may be applied to the downlink physical signal indicated by the spatially related information. For example, the base station apparatus 3 may apply a spatial filter associated with the spatially related information to the downlink physical signal indicated by the spatially related information. For example, the terminal device 1 assumes that the spatial filter associated with the certain space-related information is applied to the downlink physical signal indicated by the certain space-related information, and the uplink physical signal is based on the assumption that the spatial filter associated with the certain space-related information is applied. May be monitored. Further, the space-related information may be information indicating an index of the uplink physical signal. Here, a spatial filter associated with the spatially related information may be applied to the uplink physical signal indicated by the spatially related information. For example, the terminal device 1 may apply a spatial filter associated with the spatially related information to the uplink physical signal indicated by the spatially related information. For example, the base station apparatus 3 is based on the assumption that the spatial filter associated with the certain space-related information is applied to the uplink physical signal indicated by the certain space-related information. The signal may be monitored. Here, the uplink physical signal may be an SRS.

That is, the terminal device 1 may determine one space filter based on the space-related information notified from the base station device 3 and transmit the uplink signal.

For example, the base station device 3 may notify the list of space-related information used for transmitting the PUCCH of the terminal device 1 by RRC signaling. For example, the candidate list may include one space-related information. For example, the candidate list may contain more than one space-related information.

For example, when a list of space-related information including one space-related information is notified by RRC signaling, the terminal device 1 may apply a space filter associated with the one space-related information to PUCCH.

For example, when the list of space-related information including more than 1 space-related information is notified by RRC signaling, the terminal device 1 may be expected to receive the MAC CE command. For example, the base station device 3 may notify the space-related information of one of the space-related information more than the one by the MAC CE command. For example, the terminal device 1 may apply a spatial filter associated with the one spatially related information to the PUCCH based on receiving the MAC CE command. The activation of a spatial filter may mean the activation of spatially related information associated with the spatial filter.

The spatial filter applied to PUCCH is also referred to as the spatial filter activated for PUCCH. That is, for example, a spatial filter may be activated by RRC signaling that includes a list of spatially relevant information that includes one spatially relevant information. Further, for example, a certain spatial filter may be activated by a MAC CE command indicating one spatial related information.

For example, the terminal device 1 may activate one spatial filter for each group of PUCCH resources. For example, the group of PUCCH resources may be a group containing one or more PUCCH resources. For example, the base station apparatus 3 may set a plurality of PUCCH resources and a plurality of groups for the PUCCH resources by RRC signaling. For example, the base station device 3 may notify one of the plurality of groups and one space-related information by one MAC CE command. For example, the base station apparatus 3 may notify each space-related information activated for each of the plurality of groups by one MAC CE command. In addition, the base station apparatus 3 may apply a spatial filter activated for a certain group when transmitting the PUCCH in the PUCCH resource included in the certain group.

For example, the base station apparatus 3 does not have to notify the list of space-related information including the space-related information for PUCCH. For example, the terminal device 1 may apply (or) a spatial filter associated with the default spatially relevant information to the PUCCH, at least based on not being notified of a list of spatially relevant information, including spatially relevant information for the PUCCH. , May activate the spatial filter associated with the default spatially relevant information). For example, the default space-related information is given by the TCI (Transmission Configuration Indication) state set in the predetermined control resource set monitored by the terminal device 1 or the QCL source set in the predetermined control resource set. May be good. Also, for example, the default space-related information is the TCI of any of the TCI states set for PDSCH if the terminal device 1 is not configured to monitor the predetermined control resource set. May be given by state. For example, the predetermined control resource set may be a control resource set having an index of 0. For example, the predetermined control resource set may be the control resource set having the smallest index among the control resource sets set in a certain BWP. For example, the predetermined control resource set may be the control resource set having the smallest index among the control resource sets set in a certain cell.

Here, the TCI state is information including the index of one or more downlink reference signals. The TCI state is used to indicate a QCL relationship. For example, a TCI state set in a control resource set indicates that the PDCCH monitored in the control resource set and one or more reference signals indicated by the TCI state are QCLs.

Further, here, the QCL source set in a certain control resource set is a downlink reference signal which is a PDCCH and a QCL monitored in the certain control resource set.

For example, the base station apparatus 3 may notify a list of space-related information including one or more space-related information for PUSCH.

For example, when RRC signaling notifies a list of space-related information including one space-related information for PUSCH, the terminal device 1 applies a space filter associated with the one space-related information to PUSCH. May be good.

For example, in the DCI format used to schedule PUSCH when base station device 3 uses RRC signaling to notify terminal device 1 of a list of space-related information containing more than one space-related information for PUSCH. The space-related information of one of the space-related information more than the one may be notified to the terminal device 1 by using the included SRS resource instruction field. For example, the terminal device 1 may apply a spatial filter associated with the one spatially relevant information to the PUSCH based on receiving the DCI format.

The spatial filter applied to PUSCH is also referred to as the spatial filter activated for PUSCH. That is, for example, the spatial filter applied to PUSCH may be activated by RRC signaling that includes a list of spatially relevant information that includes one spatially relevant information. Also, for example, the spatial filter applied to PUSCH may be activated by the DCI format showing one spatially relevant information.

FIG. 14 is a diagram showing an example of a pattern to which a plurality of spatial filters included in the spatial filter set 1600 according to one aspect of the present embodiment are applied. For example, in the PUSCH format shown in FIG. 14, different spatial filters may be applied to the PUSCH for each cycle of the coherence cycle. For example, if a PUSCH format contains one coherence cycle X times, then for each X coherence cycle, one spatial filter included in the spatial filter set 1600 is applied to the PUSCH. May be good. For example, in Example A1 of FIG. 14, the PUSCH format includes four coherence cycles, the spatial filter 16001 is applied to the first coherence cycle (cycle 1), and the coherence cycle. The spatial filter 16002 is applied to the second 1 cycle (cycle 2) of the coherence cycle, the spatial filter 16003 is applied to the third 1 cycle (cycle 3) of the coherence cycle, and the 4th 1 cycle of the coherence cycle is applied. The spatial filter 16004 is applied to (cycle 4). Here, the spatial filter 16001, the spatial filter 16002, the spatial filter 16003, and the spatial filter 16004 are included in the spatial filter set 1600. Here, in FIG. 9, the first one cycle of the coherence cycle is a period including slot # 0 and slot # 1, and the second one cycle of the coherence cycle is a period including slots # 2 and slot # 3. The third cycle of the coherence cycle is the period including slots # 4 and slot # 5, and the fourth cycle of the coherence cycle is the period including slots # 6 and slot # 7.

For example, when a certain PUSCH format includes one coherence cycle X times, any of the Y spatial filters included in the spatial filter set 1600 may be applied based on a predetermined pattern. For example, Y = 2 spatial filters may be applied to the PUSCH based on a predetermined pattern. In Example A2 of FIG. 14, the spatial filter 16001 is applied to the first one cycle of the coherence cycle, the spatial filter 16002 is applied to the second one cycle of the coherence cycle, and the coherence cycle th. The spatial filter 16001 is applied to one cycle of 3, and the spatial filter 16002 is applied to the fourth cycle of the coherence cycle. Here, in the A2 embodiment, the spatial filter set 1600 is included in the spatial filter 16001 and the spatial filter set 1600.

In Example A3 of FIG. 14, the spatial filter 16002 is applied to the first one cycle of the coherence cycle, the spatial filter 16002 is applied to the second one cycle of the coherence cycle, and the coherence cycle th. The spatial filter 16001 is applied to one cycle of 3, and the spatial filter 16001 is applied to the fourth cycle of the coherence cycle. Here, in Example A3, the spatial filter set 1600 is included in the spatial filter 16001 and the spatial filter set 1600.

In Example A4 of FIG. 14, the spatial filter 16002 is applied to the first one cycle of the coherence cycle, the spatial filter 16001 is applied to the second one cycle of the coherence cycle, and the coherence cycle th. The spatial filter 16001 is applied to one cycle of 3, and the spatial filter 16002 is applied to the fourth cycle of the coherence cycle. Here, in the A2 embodiment, the spatial filter set 1600 is included in the spatial filter 16001 and the spatial filter set 1600.

For example, the terminal device 1 may apply a plurality of spatial filters included in the spatial filter set 1600 to each one of the coherence cycles based on a predetermined pattern. For example, the terminal device 1 may apply a plurality of spatial filters included in the spatial filter set 1600 to each one of the coherence cycles based on the pattern selected by the terminal device 1.

Hereinafter, a setting example of the spatial filter set 1600 will be described.

That is, for example, when the format of a certain PUSCH includes one cycle of the coherence cycle X times, the first of the spatial filter sets 1600 with respect to the PUSCH in the first cycle of the X cycles. The spatial filter of 1 may be applied. Further, for example, the second spatial filter of the spatial filter set 1600 may be applied to the PUSCH in the second one cycle of the X times.

For example, the spatial filter set 1600 may include at least a spatial filter activated for PUCCH. For example, the spatial filter set 1600 may include a plurality of spatial filters activated for any of the plurality of groups of PUCCH resources. For example, the terminal device 1 may determine the spatial filter set 1600 based on the spatial related information notified by the MAC CE command. For example, the terminal device 1 may determine the spatial filter set 1600 based on a plurality of spatially related information corresponding to any of the plurality of groups notified by the MAC CE command. The base station apparatus 3 may notify the spatial filter set 1600 by the MAC CE command.

For example, the spatial filter set 1600 may include at least a spatial filter associated with the default spatial related information. For example, when the terminal device 1 determines the default space-related information, the space filter set 1600 may include the default space-related information. For example, whether or not the terminal device 1 determines the default space-related information may be notified by RRC signaling.

For example, regardless of the type of DCI format, for PUSCH scheduled by the DCI format, the spatial filter set 1600 may include at least a spatial filter associated with the default spatial related information. For example, the terminal device 1 may include a spatial filter associated with the default spatial related information in the spatial filter set 1600 for the PUSCH scheduled by the DCI format, regardless of the type of DCI format.

For example, for PUSCH scheduled in DCI format 0_0, the spatial filter set 1600 may include at least a spatial filter associated with the default spatial related information. For example, the terminal device 1 may include a spatial filter associated with the default spatial related information in the spatial filter set 1600 for the PUSCH scheduled in DCI format 0_0.

For example, for PUSCH scheduled in DCI format 0_1, the spatial filter set 1600 does not have to include the spatial filter associated with the default spatial related information. For example, the terminal device 1 has a spatial filter associated with the default space-related information for the PUSCH scheduled in DCI format 0_1, regardless of whether the terminal device 1 determines the default space-related information. Does not have to be included in the spatial filter set 1600.

For example, for a PUSCH scheduled in DCI format 0_1 that includes an SRS resource indicator field, the spatial filter set 1600 has a plurality of spatial filters associated with any of the plurality of spatially related information indicated by the SRS resource indicator field. May include at least.

For example, a list of spatially relevant information containing more than one spatially relevant information for PUSCH may be signaled by RRC signaling and the SRS resource indicator field may be used to indicate a subset of said more than one spatially relevant information. good. The subset may include at least one or more space-related information. Here, the spatial filter set 1600 may include at least one or more spatial filters associated with any of the one or more spatially relevant information.

For example, if the SRS resource indicator field indicates a first subset of spatially relevant information that is greater than the one, the spatial filter set 1600 is associated with either one or more spatially relevant information contained in the first subset. It may include at least one or more spatial filters. Also, for example, if the SRS resource indicator field indicates a second subset of space-related information that is greater than the one, the space filter set 1600 is either one or more of the space-related information contained in the second subset. May include at least one or more spatial filters associated with. For example, the second subset may differ from the first subset.

For example, if codebook-based transmission is configured for PUSCH and the format of a PUSCH contains multiple coherence cycles, the SRS resource indicator field may indicate one or more spatially relevant information. .. Here, the SRS resource indicator field may be set to indicate a subset of the list of spatially relevant information presented by RRC signaling. One or more spatial filters associated with any one or more spatially related information included in the subset are included in the spatial filter set 1600. For example, the size of the SRS resource indicator field may be given at least based on formula (2).

Here, log ₂ (P) is a function indicating the logarithm of P having a base of 2. Further, L _max is a predetermined value. For example, L _max may be the maximum number of layers for PUSCH supported by terminal device 1. The maximum number of layers for PUSCH supported by the terminal device 1 may be notified by RRC signaling from the terminal device 1 to the base station device 3. Further, for example, L _max may be determined by RRC signaling notified from the base station device 3 to the terminal device 1. Further, where, N _SRS may be the number of spatial-related information included in the list of space-related information notified by the RRC signaling. ^{Also, C NSRS} _k _is a function indicating the total number of combinations to choose k elements from _{N SRS} number of elements.

For example, if codebook-based transmission is configured for PUSCH and the format of a PUSCH is configured to include only one coherence cycle, the SRS resource indicator field indicates one spatially relevant information. May be good. Here, the SRS resource indicator field may be set so that it can indicate any of the list of space-related information indicated by RRC signaling. For example, the size of the SRS resource indicator field may be given at least based on formula (3).

For example, if non-codebook-based transmission is configured for PUSCH, the SRS resource indicator field may contain one or more spatially relevant information, regardless of how many times a PUSCH format contains one cycle of coherence. May be indicated. Here, the SRS resource indicator field may be set to indicate a subset of the list of spatially relevant information presented by RRC signaling. One or more spatial filters associated with any one or more spatially related information included in the subset are included in the spatial filter set 1600. For example, the size of the SRS resource indicator field may be given at least based on formula (2).

For example, if non-codebook-based transmission is configured for PUSCH and the format of a PUSCH contains multiple coherence cycles, the SRS resource indicator field indicates one or more spatially relevant information. You may. Here, the SRS resource indicator field may be set to indicate a subset of the list of spatially relevant information presented by RRC signaling. One or more spatial filters associated with any one or more spatially related information included in the subset are included in the spatial filter set 1600. For example, the size of the SRS resource indicator field may be given at least based on formula (2).

For example, if non-codebook-based transmission is configured for PUSCH and a PUSCH format contains only one coherence cycle, the SRS resource indicator field may contain one or more spatially relevant information. May be shown. Here, the SRS resource indicator field may be set to indicate a subset of the list of spatially relevant information presented by RRC signaling. One or more spatial filters associated with any one or more spatially related information included in the subset are included in the spatial filter set 1600. For example, the size of the SRS resource indicator field may be given at least based on formula (2).

For example, when a list of space-related information including more than 1 space-related information is notified by RRC signaling, the terminal device 1 may be expected to further receive a MAC CE command. Here, the MAC CE command may be either a first MAC CE command or a second MAC CE command. For example, the base station apparatus 3 may notify a subset of space-related information more than the one by the first MAC CE command. For example, the terminal device 1 may apply a spatial filter associated with spatially related information determined at least based on receiving the first MAC CE command to the PUCCH.

For example, the base station apparatus 3 may notify a subset of space-related information more than 1 notified by RRC signaling by the second MAC CE command. For example, the terminal device 1 may include a spatial filter associated with any one or a plurality of spatially related information contained in the subset in the spatial filter set 1600.

In FIG. 14, the spatial filter set 1600 may be replaced by the codebook set 1700. Further, in FIG. 14, the spatial filter 16001 may be replaced by the codebook 17001. Further, in FIG. 14, the spatial filter 16002 may be replaced by the codebook 17002. Further, in FIG. 14, the spatial filter 16003 may be replaced by the codebook 17003. Further, in FIG. 14, the spatial filter 16004 may be replaced by the codebook 17004. Hereinafter, the description related to the codebook set 1700 will be described.

For example, in the PUSCH format shown in FIG. 14, a different codebook may be applied to the PUSCH for each coherence cycle. For example, if a PUSCH format contains Z times of one coherence cycle, then for each Z of coherence cycles, one codebook contained in the codebook set 1700 is applied to the PUSCH. May be good. In Example 1 of FIG. 14, the codebook 17001 is applied to the first one cycle of the coherence cycle, the codebook 17002 is applied to the second one cycle of the coherence cycle, and the third coherence cycle. Codebook 17003 may be applied to one cycle and Codebook 17004 may be applied to the fourth cycle of the coherence cycle. Here, Codebook 17001, Codebook 17002, Codebook 17003, and Codebook 17004 are included in Codebook Set 1700.

For example, when a certain PUSCH format includes one coherence cycle Z times, any of the W codebooks included in the codebook set 1700 may be applied based on a predetermined pattern. In FIG. 14, W = 2 codebooks may be applied to PUSCH based on a predetermined pattern. In Example 2 of FIG. 14, the codebook 17001 is applied to the first one cycle of the coherence cycle, the codebook 17002 is applied to the second one cycle of the coherence cycle, and the second coherence cycle is applied. Codebook 17001 may be applied to one cycle of 3, and Codebook 17002 may be applied to the fourth cycle of the coherence cycle.

For example, the terminal device 1 may apply a plurality of codebooks included in the codebook set 1700 to each one of the coherence cycles based on a predetermined pattern. For example, the terminal device 1 may apply a plurality of codebooks included in the codebook set 1700 to each one of the coherence cycles based on the pattern selected by the terminal device 1.

That is, for example, when a certain PUSCH format includes one cycle of the coherence cycle Z times, the first of the codebook sets 1700 with respect to the PUSCH in the first cycle of the Z cycles. The codebook of 1 may be applied. Further, for example, the second codebook of the codebook set 1700 may be applied to the PUSCH in the second one cycle of the Z times.

For example, when the DCI format used for PUSCH scheduling includes a field indicating one TPMI, the codebook corresponding to the one TPMI may be included in the codebook set 1700. Further, the codebook set 1700 may include one or more codebooks corresponding to any one or more TPMIs determined based on the one TPMI.

For example, if the DCI format used for PUSCH scheduling indicates the TPMI of index V, the terminal device 1 may determine W codebooks corresponding to any of index V to index V + W-1. good. Here, the W codebooks are included in the codebook set 1700. For example, if the DCI format used for PUSCH scheduling indicates a TPMI of index V, the terminal device 1 will have index V, V + 1, ... .. .. The W codebooks corresponding to any of mod (V + W-2, N _TPMI ) and mod (V + W-1, N _{TPMI) may be determined.}

FIG. 15 is a diagram showing an example of a method for determining the codebook set 1700 according to one aspect of the present embodiment. Here, W = 4 is assumed. In FIG. 15, the upper row shows the index of TPMI, the middle row shows the codebook, and the lower row shows whether or not the codebook can be included in the codebook set 1700. Here, Y indicates that the codebook can be included in the codebook set 1700, and N indicates that the codebook cannot be included in the codebook set 1700. For example, if the DCI format used for PUSCH scheduling indicates the TPMI of index 3 and W = 4, the terminal device 1 has four codes corresponding to any of

indexes

3, 4, 5, and 7. You may decide on a book. Here, the four codebooks are included in the codebook set 1700. That is, in the determination of W codebooks by the terminal device 1, the terminal device 1 may determine W codebooks based on the codebooks that can be included in the codebook set 1700.

For example, information indicating whether or not the codebook can be included in the codebook set 1700 may be included in the RRC signaling. For example, information indicating whether or not the codebook can be included in the codebook set 1700 may be included in the MAC CE. For example, information indicating whether a codebook can be included in the codebook set 1700 may be included in the DCI format.

For example, a codebook group may be considered in determining W codebooks. For example, the terminal device 1 may determine the W codebooks so that only one type of codebook group is included in the W codebooks. Here, the W codebooks are included in the codebook set 1700. For example, in FIG. 15, when the TPMI of the index 10 is indicated by the DCI format used for scheduling the PUSCH and W = 4, the terminal device 1 corresponds to any of the

indexes

10, 11, 4, and 5. Four codebooks may be determined.

For example, codebook subgroups may be considered in determining W codebooks. For example, the terminal device 1 may determine the W codebooks so that only one type of codebook subgroup is included in the W codebooks. Here, the W codebooks are included in the codebook set 1700. For example, in FIG. 15, when the TPMI of the index 10 is indicated by the DCI format used for scheduling the PUSCH and W = 4, the terminal device 1 corresponds to any of the

indexes

10, 11, 9, and 10. Four codebooks may be determined. As described above, a plurality of the same codebooks may be included in the W codebooks.

For example, in a certain PUSCH format, the coherence period for the spatial filter and the coherence period for the recording may be set to different lengths. For example, in a certain PUSCH format, the coherence period for the spatial filter may be 4 slots and the coherence period for pre-recording may be 1 slot. For example, the coherence period for spatial filtering and the coherence period for pre-recording may be notified by RRC signaling, respectively. For example, the coherence period for spatial filters and the coherence period for pre-recording may be determined at least based on RRC signaling, respectively.

It is preferable to support the flexible PUSCH format as shown in FIG. For example, when the terminal device 1 supports a plurality of services (for example, broadband service, low latency service, automobile service, etc.), it is possible to configure a PUSCH format suitable for each service.

Supporting a flexible PUSCH format is also suitable for ensuring a predetermined transmission power. For example, when the maximum transmission power per unit time is specified by treaties, laws and regulations of each country, or specifications equivalent to them, the arrangement cycle of the transport block can be set to a plurality of slots. It is possible to secure a larger maximum transmission power as compared with the case where one slot is used.

On the other hand, there is a concern that the expected data rate (also called transmission speed, throughput, etc.) may deteriorate by setting the arrangement cycle of the transport block to a plurality of slots.

By changing the size of the transport block according to the arrangement cycle of the transport block, it is expected that the above concerns will be resolved at least.

The terminal device 1 may determine the transport block based on at least a part or all of the following procedures 1 to 3. _{Step 1) Step 1 to determine the number N RE} of the number of resource elements in the time length X4 2) Step 3 to determine the median number of information bits N _info = N _RE · R · Q _m · v Determine the size of the transport block

Step 1 may further include at least part or all of steps 1a and 1b. Step ^_1a) to determine the ^{_{^{_{^{N a RE = N RB sc ·}}}}} N sh symb -N PRB DMRS -N PRB oh Step _1b ^{_{determining) N RE = min (X5,}} N a RE) · n PRB

In step 1a, N ^sh _symb may be the number of OFDM symbols assigned for PUSCH within the time length X4. N ^PRB _DMRS is an overhead value considering the resource element in which the DMRS for the PUSCH is arranged. The N ^PRB _DMRS may be the number per PRB of resource elements in which the DMRS is placed in the OFDM symbols assigned for the PUSCH. N ^PRB _oh is a value that takes into account the overhead caused by factors other than DMRS for PUSCH. Here, the element may include at least the overhead resulting from the control resource set or the placement of the CSI-RS. Here, N ^PRB _oh is indicated by the RRC parameter. Even when the terminal device 1 holds the N ^PRB _oh , it may be assumed ^{that the N PRB} _oh is 0 in the transmission of the message 3 PUSCH. Further, when the terminal device 1 ^{does not hold the N PRB} _oh , it may be assumed ^{that the N PRB} _oh is 0 in the transmission of the PUSCH.

For example, X4 may be given by the fourth control information. The fourth control information may be determined at least based on the RRC parameters, the upper layer signals, the uplink grants used to schedule the PUSCH, and some or all of one DCI format.

Even when the terminal device 1 holds the fourth control information, X4 may be one slot for the message 3 PUSCH.

For example, the fact that the terminal device 1 holds the fourth control information may mean that the terminal device 1 holds X4. For example, the fourth control information may be information indicating X4. For example, the fourth control information is information other than the information indicating X4, but may be information used to determine the X4.

Even when the terminal device 1 holds the fourth control information, X4 may be one slot for the PUSCH scheduled by the random access response grant.

When the terminal device 1 does not hold the fourth control information, X4 may be one slot with respect to PUSCH.

For example, the fourth control information may be the arrangement cycle of the transport block. For example, the time length X4 may be given at least based on the transport block placement period X0. For example, the time length X4 may be determined at least based on the transport block placement period X0. For example, the terminal device 1 may determine the time length X4 based on at least the arrangement cycle of the transport block being X0. For example, the base station apparatus 3 may determine the time length X4 based on at least the arrangement cycle of the transport block being X0.

For example, the fourth control information may be the arrangement period of a series of modulation symbols. For example, the time length X4 may be given at least based on the arrangement period of the sequence of modulation symbols being X1. For example, the time length X4 may be determined at least based on the arrangement period of the sequence of modulation symbols being X1. For example, the terminal device 1 may determine the time length X4 at least based on the arrangement period of the sequence of modulation symbols being X1. For example, the base station apparatus 3 may determine the time length X4 at least based on the arrangement period of the sequence of modulation symbols being X1.

For example, X4 may be given at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, X4 may be determined at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, the terminal device 1 may determine X4 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, the base station apparatus 3 may determine X4 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.

By controlling X4 based on at least the configuration of the PUSCH time domain, it may be possible to achieve a desired data rate regardless of the configuration of the PUSCH time domain. For example, by setting X4 to 10 slots when the time resource of PUSCH is 10 slots, a data rate similar to that when setting X4 to 1 slot when the time resource of PUSCH is 1 slot is expected. Will be done.

For example, when the configuration of the time domain of PUSCH is the first configuration, X4 may be the first value. Further, when the configuration of the time domain of PUSCH is a second configuration different from the first configuration, X4 may be a second value different from the first value. For example, when the time resource of PUSCH is the number of first slots, X4 may be the first value. Further, when the time resource of PUSCH is a second slot different from the first slot, X4 may have a second value different from the first value.

For example, X4 may be given at least based on X0. For example, X4 may be determined at least based on X0. For example, the terminal device 1 may determine X4 based on at least X0. For example, the base station apparatus 3 may determine X4 based on at least X0.

By controlling X4 based on at least X0, it may be possible to realize a predetermined data rate regardless of the arrangement cycle of the transport block. For example, by setting X4 to 10 slots when X0 is 10 slots, a data rate similar to that when X4 is set to 1 slot when X0 is 1 slot is expected.

For example, when X0 is the first value, X4 may be the second value. Further, when X0 is a third value different from the first value, X4 may be a fourth value different from the second value.

For example, X4 may be given at least based on X1. For example, X4 may be determined at least based on X1. For example, the terminal device 1 may determine X4 based on at least X1. For example, the base station apparatus 3 may determine X4 based on at least X1.

By controlling X4 based on at least X1, it may be possible to realize a predetermined data rate regardless of the arrangement period of the modulation symbols. For example, by setting X4 to 10 slots when X1 is 10 slots, a data rate similar to that when X4 is set to 1 slot when X1 is 1 slot is expected.

For example, when X1 is the first value, X4 may be the second value. Further, when X1 is a third value different from the first value, X4 may be a fourth value different from the second value.

For example, X4 may be given at least based on X2. For example, X4 may be determined at least based on X2. For example, the terminal device 1 may determine X4 based on at least X2. For example, the base station apparatus 3 may determine X4 based on at least X2.

By controlling X4 based on at least X2, it may be possible to realize a predetermined data rate regardless of the DMRS arrangement cycle. For example, by setting X4 to 10 slots when X2 is 10 slots, a data rate similar to that when X4 is set to 1 slot when X2 is 1 slot is expected.

For example, when X2 is the first value, X4 may be the second value. Further, when X2 is a third value different from the first value, X4 may be a fourth value different from the second value.

For example, X4 may be given at least based on X3. For example, X4 may be determined at least based on X3. For example, the terminal device 1 may determine X4 based on at least X3. For example, the base station apparatus 3 may determine X4 based on at least X3.

By controlling X4 based on at least X3, it may be possible to achieve a predetermined data rate regardless of the coherence period. For example, by setting X4 to 10 slots when X3 is 10 slots, a data rate similar to that when X4 is set to 1 slot when X3 is 1 slot is expected.

For example, when X3 is the first value, X4 may be the second value. Further, when X3 is a third value different from the first value, X4 may be a fourth value different from the second value.

For example, in step 1b, n _PRB may be the number of PRBs allocated for the PUSCH.

For example, X5 may be determined at least based on the fifth control information. The fifth control information may be determined at least based on the RRC parameter, the upper layer signal, the uplink grant used to schedule the PUSCH, or at least one of the DCI formats.

For example, even when the terminal device 1 holds the fifth control information, X5 may be 156RE for the message 3 PUSCH.

For example, the fact that the terminal device 1 holds the fifth control information may mean that the terminal device 1 holds X5. For example, the fifth control information may be information indicating X5. For example, the fourth control information is information other than the information indicating X5, but may be information used to determine the X5.

For example, even when the terminal device 1 holds the fifth control information, X5 may be 156RE for the PUSCH scheduled by the random access response grant.

For example, when the terminal device 1 does not hold the fifth control information, X5 may be 156RE with respect to PUSCH.

For example, X5 may be given at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, X5 may be determined at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, the terminal device 1 may determine X5 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, the base station apparatus 3 may determine X5 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.

For example, X5 may be given at least based on X0. For example, X5 may be determined at least based on X0. For example, the terminal device 1 may determine X5 based on at least X0. For example, the base station apparatus 3 may determine X5 based on at least X0.

For example, X5 may be given at least based on X1. For example, X5 may be determined at least based on X1. For example, the terminal device 1 may determine X5 based on at least X1. For example, the base station apparatus 3 may determine X5 based on at least X1.

For example, X5 may be given at least based on X2. For example, X5 may be determined at least based on X2. For example, the terminal device 1 may determine X5 based on at least X2. For example, the base station apparatus 3 may determine X5 based on at least X2.

For example, X5 may be given at least based on X3. For example, X5 may be determined at least based on X3. For example, the terminal device 1 may determine X5 based on at least X3. For example, the base station apparatus 3 may determine X5 based on at least X3.

For example, X5 may be given at least based on X4. For example, X5 may be determined at least based on X4. For example, the terminal device 1 may determine X5 based on at least X4. For example, the base station apparatus 3 may determine X5 based on at least X4.

Since X5 is a value estimated as the total number of resource elements allocated to data per X4 slot, it is preferable that X5 is controlled based on X4.

For example, when X4 is the first value, X5 may be the second value. Further, when X4 is a third value different from the first value, X5 may be a fourth value different from the second value.

In step 2, R is the target coding rate determined by the value of the MCS field included in the uplink grant. In step 2, Q _m is the order of the PUSCH modulation method or the modulation order of the PUSCH. In step 2, v is the number of PUSCH layers. The number of layers is also called a spatial multiple number or the like. That is, the layer may be the number of spatial streams.

In step 3, switching between steps 3a and 3c is performed based on the value of _Ninfo. For example, when the value of N _info is below a predetermined value, step 3a may be performed. When the value of N _info exceeds the predetermined value, step 3c may be performed. Here, for example, the predetermined value may be 3824.

In Step ^3a, the _{_{N a info = max (24,}} floor (N info / 2) · 2 ^ n), is given _{N a info.} In step 3a, n = max (3, floor ( _Ninfo ) -6).

For example, step 3b may be carried out after step 3a is carried out.

In step 3b, one value is selected from the candidate values for the size of the transport block included in the predetermined table. Here, the predetermined table has 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, 128, 136, 144, 152, 160 as candidate values for TBS. 168, 176, 184, 192, 208, 224, 240, 256, 272, 288, 304, 320, 336, 352, 368, 384, 408, 432, 456, 480, 504, 528, 552, 576, 608 , 640, 672, 704, 736, 768, 808, 848, 888, 928, 984, 1032, 1064, 1128, 1160, 1192, 1224, 1256, 1288, 1320, 1352, 1416, 1480, 1544, 1608, 1672. , 1736, 1800, 1864, 1928, 2024, 2088, 2152, 2216, 2280, 2408, 2472, 2536, 2600, 2664, 2728, 2792, 2856, 2976, 3104, 3240, 3368, 3468, 3624, 3753, 3824. May include at least part or all of. That is, the predetermined table may include a set of integer values in a range not exceeding the predetermined value.

For example, in step ^3b, and the candidate value of the most ^N _{a info} to a value close TBS does not fall below the _{N a info,} it may be determined from the predetermined table.

In Step ^3c, by _{_{N a info = max (3840,2 ^}} n · round ((N info- 24) / 2 ^ n)), is given _{N a info.} In step 3c, it is given by n = floor (log2 (N _info- 24)) -5.

For example, step 3d may be carried out after step 3c is carried out.

In Step 3d, the size _{N TBS} transport block is determined. For example, if R is less than _{^{_{1/4, N TBS = 8 · C ·}}} ceil ((N a info +24) / (8 · C)) - is given by 24. ^Here, it is given by _{C = ceil ((N a info} +24) / 3816).

In Step 3d, eg, R exceeds 1/4, ^and, _{if N a info} exceeds _{^{_{8424, N TBS = 8 · C}}} · ceil ((N a info +24) / (8 · C)) - 24 Given. ^Here, it is given by _{C = ceil ((N a info} +24) / 8424).

In Step 3d, eg, R exceeds 1/4, ^and, when _{N a info} is 8424 or _less, is given by ^{_{N TBS = 8 · ceil ((}} N a info +24) / 8) -24.

The longer the transport block placement cycle, the lower the expected data rate may be. Therefore, it is preferable to introduce a mechanism for controlling the size of the transport block in consideration of the case where the arrangement cycle of the transport block becomes large.

For example, the target coding rate R may be controlled. Here, the target coding rate R may be a value exceeding 1. When the target coding rate R exceeds 1, if the arrangement cycle X0 of the transport block is 1 slot, the effective coding rate of the transport block is expected to exceed 1, so communication is generally performed. It's impossible. On the other hand, even if the arrangement cycle of the transport block exceeds 1, if the arrangement cycle X0 of the transport block exceeds 1 slot, the effective coding rate of the transport block is less than 1. Suitable communication can be realized.

For example, the target coding rate R may be a value exceeding a predetermined value. The predetermined value may be a value included in the range of 0.93 to 1. The predetermined value is a value close to the effective coding rate supported by New Radio.

The target code rate Rmax supported by New Radio is approximately 948/1024. That is, the predetermined value may be a value close to the target coding rate Rmax supported by the New Radio.

The effective code rate is calculated by dividing the size of the transport block by the product of the number of PUSCH resource elements included in the period in which the transport block is placed and the order of the PUSCH modulation scheme. May be good.

The MCS field included in the uplink grant used for PUSCH scheduling may indicate one index. Here, in the first case, the target coding rate may be given based on the first MCS table and the one index. Further, in the second case, the target code rate may be given based on the second MCS table and the one index. Here, all the target coding rates included in the first MCS table may be equal to or less than the predetermined value. Further, at least a part of the target coding rate included in the first MCS table may exceed the predetermined value. Further, among all the target coding rates included in the first MCS table, all corresponding to QPSK modulation may be equal to or less than the predetermined value. Further, at least a part of the target coding rates included in the first MCS table corresponding to QPSK may exceed the predetermined value.

The terminal device 1 determines whether to refer to the first MCS table or the second MCS table based on the index indicated by the MCS field included in the uplink grant used for scheduling the PUSCH. May be good.

The base station apparatus 3 determines whether to refer to the first MCS table or the second MCS table based on the index indicated by the MCS field included in the uplink grant used for scheduling the PUSCH. You may.

For example, in the first case, the CRC series added to the DCI format of the uplink grant is scrambled by C-RNTI, the signal waveform of the PUSCH is DFT-s-OFDM, and the transport. The block arrangement cycle X0 may be one slot.

For example, in the first case, the CRC series added to the DCI format of the uplink grant is scrambled by C-RNTI, the signal waveform of the PUSCH is DFT-s-OFDM, and the modulation symbol. The arrangement period X1 of the series may be one slot.

For example, in the second case, the CRC series added to the DCI format of the uplink grant is scrambled by the C-RNTI, the signal waveform of the PUSCH is the DFT-s-OFDM, and It may be the case that the arrangement period X0 of the transport block is an integer exceeding 1 slot.

For example, in the second case, the CRC series added to the DCI format of the uplink grant is scrambled by the C-RNTI, the signal waveform of the PUSCH is the DFT-s-OFDM, and It may be the case that the arrangement period X1 of the series of modulation symbols exceeds 1 slot.

Further, in the third case, the target coding rate may be given based on the third MCS table and the one index.

In the third case, the CRC series added to the DCI format of the uplink grant is scrambled by the C-RNTI, the signal waveform of the PUSCH is the DFT-s-OFDM, and the transport block. The arrangement cycle X0 may be one slot, and the terminal device 1 may hold an RRC parameter indicating that the third MCS table is set.

In the third case, the CRC sequence added to the DCI format of the uplink grant is scrambled by the C-RNTI, the signal waveform of the PUSCH is the DFT-s-OFDM, and the sequence of the modulation symbols. The arrangement cycle X1 of the above may be one slot, and the RRC parameter indicating that the third MCS table is set may be held by the terminal device 1.

For example, the first table may include modulation schemes of 64QAM or less. The first table may not include modulation schemes (eg, 256QAM, etc.) that exceed the order of 64QAM.

For example, the second table may include modulation schemes of 64QAM or less. The second table may not include modulation schemes (eg, 256QAM, etc.) that exceed the order of 64QAM.

For example, the third table may include a modulation scheme (eg, 256QAM, etc.) that exceeds the order of 64QAM.

Also in the second case, the first table may be used for the message 3 PUSCH. Also in the second case, the first table may be used for the PUSCH scheduled by the random access response grant.

For example, the target coding rate R may be given at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, the target code rate R may be determined at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, the terminal device 1 may determine the target code rate R at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, the base station apparatus 3 may determine the target code rate R at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.

By controlling the target coding rate R based on at least the configuration of the PUSCH time domain, it may be possible to realize a desired data rate regardless of the configuration of the PUSCH time domain. For example, by setting the target coding rate R to about 4 when the time resource of PUSCH is 10 slots, the target coding rate R is set to 0.4 when the time resource of PUSCH is 1 slot. The same data rate as in the case is expected.

For example, when the configuration of the time domain of PUSCH is the first configuration, the target coding rate R may be the first value. Further, when the configuration of the time domain of the PUSCH is a second configuration different from the first configuration, the target coding rate R may be a second value different from the first value. For example, when the time resource of PUSCH is the number of first slots, the target coding rate R may be the first value. Further, when the time resource of PUSCH is a second slot different from the first slot, the target coding rate R may be a second value different from the first value.

For example, the target coding rate R may be given at least based on X0. For example, the target code rate R may be determined at least based on X0. For example, the terminal device 1 may determine the target code rate R based on at least X0. For example, the base station apparatus 3 may determine the target code rate R based on at least X0.

By controlling the target coding rate R based on at least X0, it may be possible to realize a predetermined data rate regardless of the arrangement cycle of the transport block. For example, by setting the target coding rate R to about 4 when X0 is 10 slots, it is about the same as setting the target coding rate R to about 0.4 when X0 is 1 slot. Data rate is expected.

For example, when X0 is the first value, the target coding rate R may be the second value. Further, when X0 is a third value different from the first value, the target coding rate R may be a fourth value different from the second value.

For example, the target coding rate R may be given at least based on X1. For example, the target code rate R may be determined at least based on X1. For example, the terminal device 1 may determine the target code rate R based on at least X1. For example, the base station apparatus 3 may determine the target code rate R based on at least X1.

By controlling the target coding rate R based on at least X1, it may be possible to realize a predetermined data rate regardless of the arrangement period of the modulation symbols. For example, by setting the target coding rate R to about 4 when X1 has 10 slots, the target coding rate R is set to about 0.4 when X1 has 1 slot. Data rate is expected.

For example, when X1 is the first value, the target coding rate R may be the second value. Further, when X1 is a third value different from the first value, the target coding rate R may be a fourth value different from the second value.

For example, the target coding rate R may be given at least based on X2. For example, the target code rate R may be determined at least based on X2. For example, the terminal device 1 may determine the target code rate R based on at least X2. For example, the base station apparatus 3 may determine the target code rate R based on at least X2.

By controlling the target coding rate R based on at least X2, it may be possible to realize a predetermined data rate regardless of the DMRS arrangement period. For example, by setting the target coding rate R to about 4 when X2 has 10 slots, the data is about the same as when the target coding rate R is set to 0.4 when X2 has 1 slot. The rate is expected.

For example, when X2 is the first value, the target coding rate R may be the second value. Further, when X2 is a third value different from the first value, the target coding rate R may be a fourth value different from the second value.

For example, the target coding rate R may be given at least based on X3. For example, the target code rate R may be determined at least based on X3. For example, the terminal device 1 may determine the target code rate R based on at least X3. For example, the base station apparatus 3 may determine the target code rate R based on at least X3.

By controlling the target coding rate R based on at least X3, it may be possible to realize a predetermined data rate regardless of the coherence period. For example, by setting the target coding rate R to about 4 when X3 has 10 slots, the target coding rate R is set to about 0.4 when X3 has 1 slot. Data rate is expected.

For example, when X3 is the first value, the target coding rate R may be the second value. Further, when X3 is a third value different from the first value, the target coding rate R may be a fourth value different from the second value.

For example, in the procedure for determining the size of the transport block (part or all of steps 1 to 3), the size of the transport block may be controlled.

For example, the first operator may be used to control the size of the transport block. That is, the first operator may act on at least one of the variables in the procedure and be used to control the size of the transport block.

For example, when the arrangement cycle X0 of the transport block exceeds one slot, the first size of the transport block may be given at least based on the first operator. For example, if the arrangement period X0 of the transport block exceeds one slot, the size of the transport block may be determined at least based on the first operator. For example, when the arrangement cycle X0 of the transport block exceeds one slot, the terminal device 1 may determine the size of the transport block based on at least the first operator. For example, when the arrangement cycle X0 of the transport block exceeds one slot, the base station apparatus 3 may determine the size of the transport block based on at least the first operator.

For example, when the arrangement cycle X0 of the transport block is one slot, the second size of the transport block may be given without being based on the first operator. For example, when the arrangement cycle X0 of the transport block is one slot, the size of the transport block may be determined not based on the first operator. For example, when the arrangement cycle X0 of the transport block is one slot, the terminal device 1 may determine the size of the transport block without being based on the first operator. For example, when the arrangement cycle X0 of the transport block is one slot, the base station apparatus 3 may determine the size of the transport block without being based on the first operator. Here, the first operator may be an operator that acts so that the first size is larger than the second size. Here, the values of the various parameters used to determine the first size may be the same as the values of the various parameters used to determine the second size.

For example, when the arrangement period X1 of the sequence of modulation symbols exceeds one slot, the first size of the transport block may be given at least based on the first operator. For example, if the arrangement period X1 of the sequence of modulation symbols exceeds one slot, the size of the transport block may be determined at least based on the first operator. For example, if the arrangement period X1 of the sequence of modulation symbols exceeds one slot, the terminal device 1 may determine the size of the transport block based on at least the first operator. For example, if the arrangement period X1 of the sequence of modulation symbols exceeds one slot, the base station apparatus 3 may determine the size of the transport block based on at least the first operator.

For example, when the arrangement period X1 of the sequence of modulation symbols is one slot, the second size of the transport block may be given without being based on the first operator. For example, when the arrangement period X1 of the sequence of modulation symbols is one slot, the size of the transport block may be determined not based on the first operator. For example, when the arrangement period X1 of the sequence of modulation symbols is one slot, the terminal device 1 may determine the size of the transport block without being based on the first operator. For example, when the arrangement period X1 of the sequence of modulation symbols is one slot, the base station apparatus 3 may determine the size of the transport block without being based on the first operator. Here, the first operator may be an operator that acts so that the first size is larger than the second size. Here, the values of the various parameters used to determine the first size may be the same as the values of the various parameters used to determine the second size.

For example, the first operator may be used in procedure 1a for determining the size of the transport block. For example, in step 1a, at least based on the first ^operator, _{N a RE} may be controlled. For example, in step ^1a, the values given as the first operator to _{_N} RB ^sc _· _N _{sh symb} may be multiplied. Here, the value given as the first operator may be a value exceeding 1. For example, in step 1a, the value given as the first operator may be ^{N PRB} _oh. For example, in step ^1a, ^N _{a RE} is given by _{^{_{^{_{N a RE = N RB sc ·}}}}} N sh symb -N PRB DMRS -N PRB oh + X, wherein X may be a value given as the first operator ..

For example, the first operator may be used in step 1b for determining the size of the transport block. For example, in step 1b, N _RE may be controlled at least based on the first operator. For example, in step ^{_{1b, min (X5, N a}} RE) · n PRB value given as the first operator may be multiplied. For example, in step 1b, X5 may be multiplied by a value given as the first operator. For example, in step 1b, the values given as the first operator to N ^a _RE may be multiplied. For example, in step 1b, _{N RE} _{is given by N RE} = min (X5, N ^a _RE ) · n _PRB + X, and X may be a value given as the first operator.

For example, the first operator may at least be used in step 2 for determining the size of the transport block. For example, in step 2, N _info = N _RE · R · Q _m · v may be multiplied by a value given as the first operator. For example, in step 2, _{N info} _{is given by N info} = N _RE · R · Q _m · v + X, and X may be a value given as the first operator.

For example, the first operator may be at least used in step 3 for determining the size of the transport block. For _{^{_{example, N TBS = 8 · C ·}}} ceil ((N a info +24) / (8 · C)) · X-24 N TBS is given, even the X is a value given as the first operator good. For _{^{_{example, N TBS = 8 · C ·}}} ceil ((N a info +24) · X / (8 · C)) - 24 N TBS is given, even the X is a value given as the first operator good. For _{^{_{example, N TBS = 8 · C ·}}} ceil ((N a info · X + 24) / (8 · C)) - 24 N TBS is given by, the X can be a value given as the first operator .. For _{^{_{example, N TBS = 8 · C ·}}} ceil ((N a info +24) / (8 · C)) - 24 + N TBS is given by X, the X can be a value given as the first operator.

For example, the first operator _may be using at least the _{N TBS.} For example, the size of the transport block may be given by the value given as the first operator in N _TBS is multiplied.

The first operator may be determined at least based on the sixth control information. For example, the sixth control information may be determined at least based on RRC parameters, higher layer signals, uplink grants used for PUSCH scheduling, or at least one DCI format.

For example, the fact that the terminal device 1 holds the sixth control information may mean that the terminal device 1 holds X6. For example, the sixth control information may be information indicating X6. For example, the sixth control information is information other than the information indicating X6, but may be information used to determine the X6.

Even when the terminal device 1 holds the sixth control information, the first operator may not be used in determining the size of the transport block included in the message 3 PUSCH.

Even when the terminal device 1 holds the sixth control information, even if the first operator is not used in determining the size of the transport block included in the PUSCH scheduled by the random access response grant. good.

When the terminal device 1 does not hold the sixth control information, the first operator may not be used in determining the size of the transport block included in the PUSCH.

For example, X6 may be given at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, X6 may be determined at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, the terminal device 1 may determine X6 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, the base station apparatus 3 may determine X6 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.

By controlling X6 based on at least the configuration of the PUSCH time domain, it may be possible to achieve a desired data rate regardless of the configuration of the PUSCH time domain.

For example, when the configuration of the time domain of PUSCH is the first configuration, X6 may be the first value. Further, when the configuration of the time domain of PUSCH is a second configuration different from the first configuration, X6 may be a second value different from the first value. For example, when the time resource of PUSCH is the number of first slots, X6 may be the first value. Further, when the time resource of PUSCH is a second slot different from the first slot, X6 may have a second value different from the first value.

For example, X6 may be given at least based on X0. For example, X6 may be determined at least based on X0. For example, the terminal device 1 may determine X6 based on at least X0. For example, the base station apparatus 3 may determine X6 based on at least X0.

By controlling X6 based on at least X0, it may be possible to realize a predetermined data rate regardless of the arrangement cycle of the transport block.

For example, when X0 is the first value, X6 may be the second value. Further, when X0 is a third value different from the first value, X6 may be a fourth value different from the second value.

For example, X6 may be given at least based on X1. For example, X6 may be determined at least based on X1. For example, the terminal device 1 may determine X6 based on at least X1. For example, the base station apparatus 3 may determine X6 based on at least X1.

By controlling the target coding rate R based on at least X1, it may be possible to realize a predetermined data rate regardless of the arrangement period of the sequence of modulation symbols.

For example, when X1 is the first value, X6 may be the second value. Further, when X1 is a third value different from the first value, X6 may be a fourth value different from the second value.

For example, X6 may be given at least based on X2. For example, X6 may be determined at least based on X2. For example, the terminal device 1 may determine X6 based on at least X2. For example, the base station apparatus 3 may determine X6 based on at least X2.

By controlling the target coding rate R based on at least X2, it may be possible to realize a predetermined data rate regardless of the DMRS arrangement period.

For example, when X2 is the first value, X6 may be the second value. Further, when X2 is a third value different from the first value, X6 may be a fourth value different from the second value.

For example, X6 may be given at least based on X3. For example, X6 may be determined at least based on X3. For example, the terminal device 1 may determine X6 based on at least X3. For example, the base station apparatus 3 may determine X6 based on at least X3.

By controlling the target coding rate R based on at least X3, it may be possible to realize a predetermined data rate regardless of the coherence period.

For example, when X3 is the first value, X6 may be the second value. Further, when X3 is a third value different from the first value, X6 may be a fourth value different from the second value.

For example, X6 may be given at least based on X4. For example, X6 may be determined at least based on X4. For example, the terminal device 1 may determine X6 based on at least X4. For example, the base station apparatus 3 may determine X6 based on at least X4.

By controlling X6 based on at least X4, it may be possible to achieve a predetermined data rate regardless of the method of determining the size of the transport block.

For example, when X4 is the first value, X6 may be the second value. Further, when X4 is a third value different from the first value, X6 may be a fourth value different from the second value.

FIG. 16 is a diagram showing an example of arrangement of DMRS for PUSCH according to one aspect of this embodiment. In FIG. 16, it is assumed that the DMRS arrangement period for the PUSCH is one slot. In FIG. 16, the horizontal axis represents the time axis and the vertical axis represents the frequency axis. Further, in the time domain in FIG. 16, resource elements corresponding to OFDM symbols for two slots are shown. Further, in the frequency domain in FIG. 16, resource elements corresponding to 1 PRB are shown. The 28 OFDM symbols shown in FIG. 16 are indexed from l = 0 to l = 27 in ascending order in the time domain. Further, in FIG. 16, it is shown that the PUSCH is arranged from OFDM symbols l = 3 to l = 27.

For example, the arrangement of DMRS may be given at least based on the _{reference point l start and the arrangement pattern.} For example, the placement of the DMRS may be determined at least based on the _{reference point l start and the placement pattern.} For example, the terminal device 1 may determine the arrangement of the DMRS based on at least _{the reference point l start and the arrangement pattern.} For example, the base station apparatus 3 may determine the arrangement of the DMRS based on at least _{the reference point l start and the arrangement pattern.}

The placement pattern may include at least a set of OFDM symbol indexes in which the DMRS is placed. Here, the point where the OFDM symbol index l = 0 in the DMRS arrangement pattern is defined as the reference point l _start .

In FIG. 16, the reference point l ⁰ _{start with} respect to slot # 0 is set at the point where the transmission of PUSCH is started in slot # 0 (that is, the point where the OFDM symbol index l = 3). That is, the OFDM symbol index l = 3 is the reference point l ⁰ _start with respect to slot # 0. Here, since the arrangement patterns for slot # 0 are 0, 4, and 8, DMRS is arranged in the resource elements indicated by the diagonal lines and the grid lines. As shown in FIG. 16, DMRS may be arranged at regular intervals in the frequency direction. In particular, the DMRS of the shaded resource element is also referred to as a front-loaded DMRS (flont-loaded DMRS). The DMRS of the resource element of the grid line is also referred to as an additional DMRS (additional DMRS).

In FIG. 16, the reference point l ¹ _{start with} respect to slot # 1 is set at the point where transmission of PUSCH is started in slot # 1 (that is, the point where OFDM symbol index l = 14). That is, the OFDM symbol index l = 14 is the reference point l ¹ _start with respect to slot # 0. Here, since the arrangement patterns for slot # 1 are 0, 5, and 10, DMRS is arranged in the resource elements indicated by the diagonal lines and the grid lines. In particular, the DMRS of the horizontal line resource element is also referred to as a front load DMRS. The DMRS of the vertical line resource element is also referred to as an additional DMRS.

As shown in FIG. 16, the arrangement pattern of DMRS may be different for each slot or may be set for each slot. For example, the DMRS placement pattern may be determined based on the number of OFDM symbols used for PUSCH in the slot.

A sparse arrangement of DMRSs in the time domain, as shown in FIG. 16, is suitable in an environment where the terminal device 1 is moving at high speed, but the terminal device 1 is moving at low speed or the terminal. If the device 1 is not moving, it may not be possible to say that the resource is used efficiently. Therefore, when the PUSCH is arranged over a plurality of slots, a setting that further limits the arrangement of the DMRS is preferable.

For example, the slot in which the DMRS is arranged may be given at least based on the arrangement period X2 of the DMRS. For example, the slot in which the DMRS is placed may be determined at least based on the DMRS placement period X2. For example, the terminal device 1 may determine in which slot in one of the DMRS placement cycles the DMRS is placed, at least based on the DMRS placement cycle X2. For example, the base station apparatus 3 may determine in which slot in one of the DMRS placement cycles the DMRS is placed, at least based on the DMRS placement cycle X2.

FIG. 17 is a diagram showing an example of a slot in which a DMRS for PUSCH according to one aspect of the present embodiment is arranged. The horizontal axis of FIG. 17 indicates the time axis. Further, in FIG. 17, a plurality of slots (8 slots in FIG. 17) are shown on the time axis. Here, the plurality of slots in FIG. 17 are indexed for each DMRS placement cycle, such as slot # 0 (slot # 0) to slot # 3 (slot # 3), in the order of earliest time. .. In FIG. 17, the plurality of slots are arranged continuously in the time domain, but the aspect of the present invention is not limited to the plurality of slots being arranged continuously in the time domain. For example, in the aspect of the present invention, the plurality of slots may be composed of slots capable of uplink transmission. That is, in the aspect of the present invention, a plurality of slots may not include slots capable of downlink transmission.

For example, in FIG. 17, DMRS for PUSCH may be arranged in slot # 0, slot # 1, slot # 4, and slot # 5. On the other hand, in FIG. 17, the DMRS for PUSCH does not have to be arranged in slot # 2, slot # 3, slot # 6, and slot # 7.

For example, the slot in which the DMRS for PUSCH is arranged may be arranged in the first X7 slot in one of the DMRS arrangement cycles. On the other hand, the DMRS may not be placed in a slot where it is not determined that the DMRS for the PUSCH will be placed.

For example, the slot in which the DMRS for PUSCH is arranged may have the periodicity of the X7 slot in one of the DMRS arrangement cycles. For example, the slot i in which the DMRS for PUSCH is arranged may have a value satisfying mod (i, X7) = Z. Here, Z may be included in at least one of the RRC parameters, the signal of the upper layer, the uplink grant used for scheduling PUSCH, or one DCI format.

For example, X7 may be determined at least based on the seventh control information. For example, the seventh control information may be determined at least based on at least one of the RRC parameters, higher layer signals, uplink grants used for PUSCH scheduling, or one DCI format.

Even when the terminal device 1 holds the seventh control information, the DMRS for the message 3 PUSCH may be arranged in all the slots.

For example, the fact that the terminal device 1 holds the seventh control information may mean that the terminal device 1 holds X7. For example, the seventh control information may be information indicating X7. For example, the seventh control information is information other than the information indicating X7, but may be information used to determine the X7.

Even when the terminal device 1 holds the seventh control information, the DMRS for PUSCH scheduled by the random access response grant may be arranged in all the slots.

If the terminal device 1 does not hold the seventh control information, DMRS for PUSCH may be arranged in all slots.

For example, X7 may be given at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, X7 may be determined at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, the terminal device 1 may determine X7 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant. For example, the base station apparatus 3 may determine X7 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.

By controlling X7 based on at least the configuration of the PUSCH time domain, it may be possible to control the density of the PUSCH DMRS time domain based on the configuration of the PUSCH time domain.

For example, when the configuration of the time domain of PUSCH is the first configuration, X7 may be the first value. Further, when the configuration of the time domain of PUSCH is a second configuration different from the first configuration, X7 may be a second value different from the first value. For example, when the time resource of PUSCH is the number of first slots, X7 may be the first value. Further, when the time resource of PUSCH is a second slot different from the first slot, X7 may have a second value different from the first value.

For example, X7 may be given at least based on X0. For example, X7 may be determined at least based on X0. For example, the terminal device 1 may determine X7 based on at least X0. For example, the base station apparatus 3 may determine X7 based on at least X0.

By controlling X7 based on at least X0, it may be possible to control the density of the DMRS time domain of the PUSCH based on the arrangement cycle of the transport block. For example, it is preferable that a predetermined DMRS arrangement is realized for each transport block.

For example, when X0 is the first value, X7 may be the second value. Further, when X0 is a third value different from the first value, X7 may be a fourth value different from the second value.

For example, X7 may be given at least based on X1. For example, X7 may be determined at least based on X1. For example, the terminal device 1 may determine X7 based on at least X1. For example, the base station apparatus 3 may determine X7 based on at least X1.

By controlling X7 based on at least X1, it may be possible to control the density of the DMRS time domain of the PUSCH based on the arrangement period of the sequence of modulation symbols. For example, it may be easier to implement modulation symbol placement and DMRS placement.

For example, when X1 is the first value, X7 may be the second value. Further, when X1 is a third value different from the first value, X7 may be a fourth value different from the second value.

For example, X7 may be given at least based on X2. For example, X7 may be determined at least based on X2. For example, the terminal device 1 may determine X7 based on at least X2. For example, the base station apparatus 3 may determine X7 based on at least X2.

By controlling X7 based on at least X2, it may be possible to control the density of the DMRS time domain of the PUSCH based on the DMRS placement cycle. Flexible DMRS placement can be realized by setting the DMRS placement cycle and the density of the DMRS time domain.

For example, when X2 is the first value, X7 may be the second value. Further, when X2 is a third value different from the first value, X7 may be a fourth value different from the second value.

For example, X7 may be given at least based on X3. For example, X7 may be determined at least based on X3. For example, the terminal device 1 may determine X7 based on at least X3. For example, the base station apparatus 3 may determine X7 based on at least X3.

By controlling X7 based on at least X3, it may be possible to control the density of the DMRS time domain of the PUSCH based on the coherence period. By setting the coherence period and the density in the DMRS time domain, it may be possible to control the DMRS density based on the moving speed of the terminal.

For example, when X3 is the first value, X7 may be the second value. Further, when X3 is a third value different from the first value, X7 may be a fourth value different from the second value.

For example, X7 may be given at least based on X4. For example, X7 may be determined at least based on X4. For example, the terminal device 1 may determine X7 based on at least X4. For example, the base station apparatus 3 may determine X7 based on at least X4.

By controlling X7 based on at least X4, it may be possible to control the density of the DMRS time domain of the PUSCH based on the method of determining the size of the transport block.

For example, when X4 is the first value, X7 may be the second value. Further, when X4 is a third value different from the first value, X7 may be a fourth value different from the second value.

FIG. 18 is a diagram showing an arrangement example of DMRS for PUSCH according to one aspect of the present embodiment. In FIG. 18, it is assumed that the DMRS arrangement period for the PUSCH is 2 slots. In FIG. 18, the horizontal axis represents the time axis and the vertical axis represents the frequency axis. Further, in the time domain in FIG. 18, resource elements corresponding to OFDM symbols for two slots are shown. Further, in the frequency domain in FIG. 18, resource elements corresponding to 1 PRB are shown. The 28 OFDM symbols shown in FIG. 18 are indexed from l = 0 to l = 27 in ascending order in the time domain. Further, in FIG. 18, it is shown that the PUSCH is arranged from OFDM symbols l = 3 to l = 27.

In FIG. 18, the DMRS placement pattern includes

OFDM symbol indexes

0, 8 and 16. That is, DMRS is arranged at the 0th, 8th, and 16th OFDM symbols with reference to the DMRS reference point l _start.

As shown in FIG. 18, the DMRS arrangement pattern may be applied every one DMRS arrangement cycle. Here, the arrangement pattern of DMRS may be composed of a set of integer values in the range of 0 to X2 * 14 OFDM symbol-1. In particular, at least one of the indexes of the OFDM symbols included in the DMRS arrangement pattern may have a value of more than 13.

Hereinafter, aspects of various devices according to one aspect of the present embodiment will be described.

(1) In order to achieve the above object, the aspect of the present invention has taken the following measures. That is, the first aspect of the present invention is the terminal device, which is a receiving unit that receives a command of the MAC layer that activates the space-related information set, and space-related information of any one of the space-related information sets. The PUCCH is transmitted by applying a transmission filter based on, and the PUSCH is transmitted in the slot set by applying a plurality of transmission filters based on each of the plurality of space-related information included in the space-related information subset of the space-related information set. The space-related information subset includes at least a first space-related information and a second space-related information different from the first space-related information. A transmission filter based on the first space-related information is applied to the PUSCH of the first slot subset of the slot set, and the second is applied to the PUSCH of the second slot subset of the slot set. Apply a transmission filter based on space-related information.

(2) Further, a second aspect of the present invention is a terminal device in which a receiving unit that receives a DCI format including at least one SRS resource indicator field and a PUSCH scheduled by the DCI format are set in a slot set. A transmission unit for transmitting is provided, and one SRS resource set is set in the terminal device by an RRC parameter, and a first SRS resource subset of the one SRS resource set and a second SRS of the one SRS resource set are provided. The resource subset is determined, and based on the value of the one SRS resource indicator field, the first SRS resource subset or the second SRS resource subset is shown, and the first SRS resource subset is the first. The second SRS resource subset contains at least a third SRS resource and a fourth SRS resource, and the transmitter has the indicated SRS resource subset of the first. In the case of one SRS resource subset, the transmission filter applied to the first SRS resource is applied to the PUSCH of the first slot subset of the slot set, and the second slot set is applied. When the transmission filter applied to the second SRS resource is applied to the PUSCH of the slot subset and the indicated SRS resource subset is the second SRS resource subset, the third of the slot set. The transmission filter applied to the third SRS resource is applied to the PUSCH of the slot subset of the above, and the fourth SRS resource is applied to the PUSCH of the fourth slot subset of the slot set. Apply the outbound filter applied to.

(3) Further, in the second aspect of the present invention, when the transmission mode setting for the PUSCH is set to the codebook mode and the transmission diversity is set for the PUSCH, the first SRS is set. The first SRS resource subset is 1 when the resource subset includes a plurality of SRS resources, the transmit mode setting for the PUSCH is set to the codebook mode, and the transmit diversity is not set for the PUSCH. The transmit diversity for the PUSCH when it contains one SRS resource and the second SRS resource subset contains one SRS resource and the transmit mode setting for the PUSCH is set to non-codebook mode. Regardless of the setting, the first SRS resource subset includes a plurality of SRS resources.

(4) Further, the third aspect of the present invention is the terminal device, which receives the first MAC layer command for activating the first space-related information set and activates the second space-related information set. A receiver that receives the second MAC layer command to be converted and a transmission filter based on the space-related information of one of the first space-related information sets are applied to transmit the PUCCH, and the second space-related information is transmitted. The first space includes a transmitter that transmits a PUSCH in a slot set by applying a plurality of transmission filters based on each of the plurality of space-related information included in the first space-related information subset of the information set. The related information subset includes at least the first space-related information and the second space-related information, and the transmitter transmits the first space-related information with respect to the PUSCH of the first slot subset of the slot set. An information-based transmission filter is applied, and the second space-related information-based transmission filter is applied to the PUSCH of the second slot subset of the slot set.

(5) Further, a fourth aspect of the present invention is a base station apparatus, which is one of a receiving unit that transmits a command of the MAC layer that activates the space-related information set and the space-related information set. Receives a PUCCH to which a transmission filter based on the space-related information of is applied, and slots a PUSCH to which a plurality of transmission filters based on each of a plurality of space-related information included in the space-related information subset of the space-related information set are applied. The space-related information subset includes at least a first space-related information and a second space-related information different from the first space-related information, and the slot set includes a receiving unit for receiving in the set. A transmission filter based on the first space-related information is applied to the PUSCH of the first slot subset of the slot set, and the second space-related information is applied to the PUSCH of the second slot subset of the slot set. An informed transmission filter is applied.

(6) A fifth aspect of the present invention is a base station apparatus in which a transmitter that receives a DCI format including at least one SRS resource indicator field and a PUSCH scheduled by the DCI format are slotted. One SRS resource set is set in the terminal device by the RRC parameter, and the first SRS resource subset of the one SRS resource set and the second SRS resource set of the one SRS resource set are provided. The SRS resource subset is determined, and based on the value of the one SRS resource indicator field, the first SRS resource subset or the second SRS resource subset is shown, and the first SRS resource subset is the first. The second SRS resource subset contains at least a third SRS resource and a fourth SRS resource, and the indicated SRS resource subset contains at least the first SRS resource. When it is a subset, the transmission filter applied to the first SRS resource is applied to the PUSCH of the first slot subset of the slot set, and the second slot subset of the slot set is said to have the transmission filter applied to the first SRS resource. When the transmission filter applied to the second SRS resource is applied to the PUSCH and the indicated SRS resource subset is the second SRS resource subset, the third slot subset of the slot set The transmission filter applied to the third SRS resource is applied to the PUSCH, and is applied to the fourth SRS resource to the PUSCH of the fourth slot subset of the slot set. The transmission filter is applied.

(7) Further, in the fifth aspect of the present invention, when the transmission mode setting for the PUSCH is set to the codebook mode and the transmission diversity is set for the PUSCH, the first SRS is set. The first SRS resource subset is 1 when the resource subset includes a plurality of SRS resources, the transmit mode setting for the PUSCH is set to the codebook mode, and the transmit diversity is not set for the PUSCH. The transmit diversity for the PUSCH when it contains one SRS resource and the second SRS resource subset contains one SRS resource and the transmit mode setting for the PUSCH is set to non-codebook mode. Regardless of the setting, the first SRS resource subset includes a plurality of SRS resources.

(8) A sixth aspect of the present invention is the base station apparatus, which transmits a first MAC layer command for activating the first space-related information set, and transmits the second space-related information set. The transmitter that transmits the second MAC layer command to be activated and the PUCCH to which the transmission filter based on the space-related information of one of the first space-related information sets is applied are received, and the second space is received. The first space includes a receiver that receives a PUSCH in a slot set to which a plurality of transmission filters based on each of the plurality of space-related information included in the first space-related information subset of the related information set are applied. The related information subset includes at least the first space-related information and the second space-related information, and is a transmission filter based on the first space-related information for the PUSCH of the first slot subset of the slot set. Is applied, and a transmission filter based on the second space-related information is applied to the PUSCH of the second slot subset of the slot set.

(9) Further, a seventh aspect of the present invention is a terminal device, which receives a control signal indicating information for identifying a first precoder subset of the first precoder set, and receives the control signal indicating the information indicating the first precoder subset. A receiver that receives a DCI format including a field indicating a first precoder among the precoders included in the recorder subset, and a transmitter that transmits a PUSCH scheduled by the DCI format in a slot set. The precoder subset of 1 includes at least a second precoder, the second precoder is determined based on the first precoder, and the transmitter is on the PUSCH of the first slot subset of the slot set. On the other hand, the first precoder is applied, and the second precoder is applied to the PUSCH of the second slot subset of the slot set.

(10) Further, in the seventh aspect of the present invention, the transmission unit transmits the functional information of the terminal device, and the functional information is a precoder of a predetermined type in the first precoder set. The first precoder subset includes the predetermined type of precoder when it indicates whether or not it has a function to be applied and the function information indicates that there is no function to apply the predetermined type of precoder. Consists of not.

(11) Further, an eighth aspect of the present invention is the base station apparatus, which transmits a control signal indicating information for identifying a first precoder subset of the first precoder set, and the first precoder set. A transmitter that transmits a DCI format including a field indicating a first precoder among the precoders included in the precoder subset, and a receiver that receives a PUSCH scheduled by the DCI format in a slot set. The first precoder subset comprises at least a second precoder, the second precoder being determined based on the first precoder, with respect to the PUSCH of the first slot subset of the slot set. The first precoder is applied and the second precoder is applied to the PUSCH of the second slot subset of the slot set.

(12) Further, in the eighth aspect of the present invention, the receiving unit receives the functional information of the terminal device for transmitting the PUSCH, and the functional information is a predetermined one in the first precoder set. The first precoder subset is said to be of the predetermined type when it indicates whether or not it has a function of applying a type of precoder and the functional information indicates that there is no function of applying the predetermined type of precoder. Consists of not including the precoder of.

The program operating in the base station device 3 and the terminal device 1 according to one aspect of the present invention controls a CPU (Central Processing Unit) and the like so as to realize the functions of the above embodiment related to one aspect of the present invention. It may be a program (a program that makes a computer function). Then, the information handled by these devices is temporarily stored in RAM (Random Access Memory) at the time of processing, and then stored in various ROMs such as Flash ROM (Read Only Memory) and HDD (Hard Disk Drive). The CPU reads, corrects, and writes as necessary.

Note that the terminal device 1 and a part of the base station device 3 in the above-described embodiment may be realized by a computer. In that case, the program for realizing this control function may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read by the computer system and executed.

The "computer system" referred to here is a computer system built in the terminal device 1 or the base station device 3, and includes hardware such as an OS and peripheral devices. Further, the "computer-readable recording medium" refers to a portable medium such as a flexible disk, a magneto-optical disk, a ROM, or a CD-ROM, or a storage device such as a hard disk built in a computer system.

Furthermore, a "computer-readable recording medium" is a medium that dynamically holds a program for a short period of time, such as a communication line when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. In that case, a program may be held for a certain period of time, such as a volatile memory inside a computer system serving as a server or a client. Further, the above-mentioned program may be a program for realizing a part of the above-mentioned functions, and may be a program for realizing the above-mentioned functions in combination with a program already recorded in the computer system.

Further, the base station device 3 in the above-described embodiment can also be realized as an aggregate (device group) composed of a plurality of devices. Each of the devices constituting the device group may include a part or all of each function or each function block of the base station device 3 according to the above-described embodiment. As the device group, it suffices to have each function or each function block of the base station device 3. Further, the terminal device 1 according to the above-described embodiment can also communicate with the base station device as an aggregate.

Further, the base station device 3 in the above-described embodiment may be EUTRAN (Evolved Universal Terrestrial Radio Access Network) and / or NG-RAN (NextGen RAN, NR RAN). Further, the base station apparatus 3 in the above-described embodiment may have a part or all of the functions of the upper node with respect to the eNodeB and / or the gNB.

Further, a part or all of the terminal device 1 and the base station device 3 in the above-described embodiment may be realized as an LSI which is typically an integrated circuit, or may be realized as a chipset. Each functional block of the terminal device 1 and the base station device 3 may be individually chipped, or a part or all of them may be integrated into a chip. Further, the method of making an integrated circuit is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. Further, when an integrated circuit technology that replaces an LSI appears due to advances in semiconductor technology, it is also possible to use an integrated circuit based on this technology.

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

As described above, the embodiment of the present invention has been described in detail with reference to the drawings, but the specific configuration is not limited to this embodiment, and includes design changes and the like within a range that does not deviate from the gist of the present invention. In addition, one aspect of the present invention can be variously modified within the scope of the claims, and the technical aspects of the present invention can also be obtained by appropriately combining the technical means disclosed in the different embodiments. Included in the range. In addition, the elements described in each of the above embodiments include a configuration in which elements having the same effect are replaced with each other.

One aspect of the present invention is used, for example, in a communication system, a communication device (for example, a mobile phone device, a base station device, a wireless LAN device, or a sensor device), an integrated circuit (for example, a communication chip), a program, or the like. be able to.

1 (1A, 1B, 1C) Terminal device 3

Base station device

10, 30 Wireless transmitter / receiver 10a, 30a Wireless transmitter 10aa Channel coding / scrambling / modulation section 10ab Layer mapping section 10ac Recording section 10ad Time signal generation section 10ae Spatial filter unit 10af Antenna unit 10b, 30b Wireless reception unit 10ba Channel decoding / descramble / Demodulation unit 10bb Layer demodulation unit 10bb Channel demodulation unit 10b frequency signal generation unit 10be Spatial filter unit

10bf Antenna unit

11, 31

Antenna unit

12, 31 32

RF unit

13, 33

Baseband unit

14, 34 Upper

layer processing unit

15, 35 Media access control

layer processing unit

16, 36 Radio resource control layer processing unit 91, 92, 93, 94 Search area set 300 Component carrier 301

Primary cell

302, 303 Secondary cell 1600 Spatial filter set 1700 Codebook set 3000

Points

3001, 3002

Resource grid

3003, 3004 BWP
3011, 3012, 3013, 3014 Offset 3100, 3200 Common resource block set 16000 Management functions 16001, 16002, 16003, 16004, 16005, 16006, 16007, 1608, 16009, 16010, 16011, 16012, 16013, 16014, 16015, 16016, 16017, 16018, 16019, 16020, 16021, 16022, 16023, 16024, 16025, 16026, 16027, 16028, 16029, 16030, 16031, 16032

Spatial filter

16101, 16102 Downlink physical signal 16103 Uplink physical signal 17001, 17002, 17003 , 17004 Codebook

Claims

Receives a control signal indicating information that identifies the first precoder subset of the first precoder set.
A receiver that receives a DCI format that includes a field indicating the first precoder among the precoders included in the first precoder subset.
A transmitter that transmits a PUSCH scheduled in the DCI format in a slot set.
The first precoder subset comprises at least a second precoder.
The second precoder is determined based on the first precoder.
The transmitter applies the first precoder to the PUSCH of the first slot subset of the slot set.
A terminal device that applies the second precoder to the PUSCH of the second slot subset of the slot set.
The transmission unit transmits the functional information of the terminal device, and the transmission unit transmits the function information of the terminal device.
The functional information indicates whether or not the first precoder set has a function of applying a predetermined type of precoder.
The first aspect of claim 1, wherein the first precoder subset is configured not to include the predetermined type of precoder when the functional information indicates that there is no function to apply the predetermined type of precoder. Terminal device.
Sending a control signal indicating information identifying the first precoder subset of the first precoder set,
A transmitter that transmits a DCI format including a field indicating the first precoder among the precoders included in the first precoder subset, and a transmitter.
A receiver that receives the PUSCH scheduled by the DCI format in the slot set is provided.
The first precoder subset comprises at least a second precoder.
The second precoder is determined based on the first precoder.
The first precoder is applied to the PUSCH of the first slot subset of the slot set.
A base station apparatus to which the second precoder is applied to the PUSCH of the second slot subset of the slot set.
The receiving unit receives the functional information of the terminal device that transmits the PUSCH, and receives the function information.
The functional information indicates whether or not the first precoder set has a function of applying a predetermined type of precoder.
The third aspect of the present invention, wherein the first precoder subset is configured not to include the predetermined type of precoder when the functional information indicates that there is no function to apply the predetermined type of precoder. Base station equipment.
A communication method used for terminal devices.
Receives a control signal indicating information that identifies the first precoder subset of the first precoder set.
A step of receiving a DCI format that includes a field indicating the first precoder of the precoders included in the first precoder subset.
It comprises a step of transmitting a PUSCH scheduled by the DCI format in a slot set.
The first precoder subset comprises at least a second precoder.
The second precoder is determined based on the first precoder.
The first precoder is applied to the PUSCH of the first slot subset of the slot set.
A communication method in which the second precoder is applied to the PUSCH of the second slot subset of the slot set.
A communication method used for base station equipment.
Sending a control signal indicating information identifying the first precoder subset of the first precoder set,
A step of transmitting a DCI format including a field indicating the first precoder among the precoders included in the first precoder subset.
It comprises a step of receiving a PUSCH scheduled by the DCI format in a slot set.
The first precoder subset comprises at least a second precoder.
The second precoder is determined based on the first precoder.
The first precoder is applied to the PUSCH of the first slot subset of the slot set.
A communication method in which the second precoder is applied to the PUSCH of the second slot subset of the slot set.