JP2019092062A - Terminal device, base station device and communication method - Google Patents

Abstract

To provide a communication method which efficiently transmits a transport block and UCI.SOLUTION: A transport block is mapped at least to a first resource group of a first antenna port and a second resource group of a second antenna port. UL PTRS is mapped to a third resource group of the first antenna port and is not mapped to any of resource elements of the second antenna port. UCI is mapped at least to a fourth resource group of the first antenna port and a fifth resource group of the second antenna port. An index pair of resource elements included in the fifth resource group is different from any of the index pair of the resource elements included in the third resource group. The index pair is a pair of a subcarrier index of the resource element and an OFDM symbol index.SELECTED DRAWING: Figure 8

Description

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

Wireless access method and wireless network for cellular mobile communications (hereinafter "Long Term Evolution (LTE)" or "EUTRA: Evolved Universal T"
It is called "errestrial Radio Access". ) Is the third Generation Partnership Project (3GPP: has been studied in 3 ^rd Generation Partnership Project). In LTE, a base station apparatus is an eNodeB (evolved NodeB) and a terminal apparatus is a U
Also called E (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. A single base station apparatus may manage multiple serving cells.

In 3GPP, in order to propose the International Mobile Telecommunications (IMT), which is a standard for the next-generation mobile communication system developed by the International Telecommunications Union (ITU)-2020, consider the next-generation standard (NR: New Radio) Has been carried out (Non-Patent Document 1). In the framework of a single technology, NR is required to meet the requirements that assume three scenarios: Enhanced Mobile Broad Band (eMBB), Massive Machine Type Communication (mMTC), and Ultra Reliable and Low Latency Communication (URLLC). There is.

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

  The present invention provides a terminal device that performs communication efficiently, a communication method used for the terminal device, a base station device that performs communication efficiently, and a communication method used for the base station device.

  (1) A first aspect of the present invention is a terminal apparatus, which transmits an encoder for encoding one transport block and UCI, the one transport block and the UCI in one PUSCH Transmitting unit, at least one transport block is mapped to the first resource group of the first antenna port and the second resource group of the second antenna port, and the UL PTRS is configured to Mapped to a third resource group of antenna ports and not mapped to any resource elements of said second antenna port, said UCI being a fourth resource group of said first antenna port and said At least mapped to the fifth resource group of the second antenna port, said fifth resource group Index pair resource element included in, unlike with any of the index pairs of the third resource element included in the resource group, the index pair is a pair of subcarrier index and OFDM symbol index of a resource element.

(2) A second aspect of the present invention is a base station apparatus, comprising: a receiving unit for receiving one PUSCH transmitted including one transport block and UCI; the transport block and the UCI A decoding unit for decoding, wherein the one transport block is at least mapped to the first resource group of the first antenna port and the second resource group of the second antenna port, and the UL PTRS is The UCI is mapped to the third resource group of the first antenna port and is not mapped to any resource element of the second antenna port, and the UCI is a fourth resource of the first antenna port Group and the fifth resource group at least mapped to the fifth resource group of the second antenna port The index pair of resource elements included in the group is different from any of the index pairs of resource elements included in the third resource group, and the index pair is a pair of subcarrier index of resource element and OFDM symbol index .

  (3) A third aspect of the present invention is a communication method used for a terminal device, which comprises the steps of encoding one transport block and UCI, one transport block and one UCI, Transmitting on PUSCH, wherein said one transport block is at least mapped to a first resource group of a first antenna port and a second resource group of a second antenna port, and UL PTRS is configured to: The UCI is mapped to the third resource group of the first antenna port and is not mapped to any resource element of the second antenna port, and the UCI is a fourth resource group of the first antenna port And at least mapped to the fifth resource group of the second antenna port and The index pair of the resource element included in the fifth resource group is different from any of the index pair of the resource element included in the third resource group, and the index pair is the subcarrier index of the resource element and the OFDM symbol index It is a pair.

  (4) A fourth aspect of the present invention is a communication method, comprising the steps of: receiving one PUSCH including one transport block and UCI; decoding the transport block and the UCI And wherein said one transport block is at least mapped to a first resource group of a first antenna port and a second resource group of a second antenna port, and UL PTRS is associated with said first The UCI is mapped to a third resource group of antenna ports and is not mapped to any resource elements of the second antenna port, and the UCI is a fourth resource group of the first antenna port and the fourth resource group of the first antenna port. At least mapped to a fifth resource group of two antenna ports, The index pair of resource elements included in the group is different from any of the index pairs of resource elements included in the third resource group, and the index pair is a pair of subcarrier index of resource element and OFDM symbol index .

  According to the present invention, the terminal device can communicate efficiently. Also, the base station apparatus can communicate efficiently.

It is a conceptual diagram of a radio communications system concerning one mode of this embodiment. It is an example which shows the relationship between N ^slot _{symb which concerns} on one aspect _| mode of this embodiment, setting ( _{micro | micron | mu) of} a subcarrier space _| interval, slot setting, and CP setting. It is the schematic which shows an example of the resource grid in the sub-frame which concerns on 1 aspect of this embodiment. Transport block _{a k (a 0, ... a} A-1) in the baseband unit 13 according to an aspect of the present embodiment shows an example of coding. It is a diagram illustrating an example of a first method of encoding bit sequence c ^UCI ₀ when KUCI according to one aspect of the present embodiment is 1. It is a diagram illustrating an example of the first encoding method KUCI bit sequence when it is 2 ^c _UCI k according to an aspect of the present embodiment _{^{(c UCI 0, c UCI 1}} ). It is a figure which shows an example of the mapping to the resource element of PUSCH of the coupling | bond sequence gk which _concerns on 1 aspect of this embodiment, and the rate match sequence e ^UCI _k . Coupling for a second antenna port when one codeword according to an aspect of this embodiment is mapped to a first antenna port and a second antenna port It is a figure which shows an example of the mapping to PUSCH of sequence g _k and rate match sequence e ^UCI _k . It is a schematic block diagram which shows the structure of the terminal device 1 which concerns on the one aspect | mode of this embodiment. It is a schematic block diagram which shows the structure of the base station apparatus 3 which concerns on 1 aspect of this embodiment.

  Hereinafter, embodiments of the present invention will be described.

  FIG. 1 is a conceptual diagram of a wireless communication system according to an aspect of the present embodiment. In FIG. 1, the wireless communication system includes terminal devices 1A to 1C and a base station device 3. Hereinafter, the terminal devices 1A to 1C are also referred to as the terminal device 1.

  The frame configuration will be described below.

In the wireless communication system according to one aspect of the present embodiment, at least OFDM (Orthogonal Frequency Division Multiplex) is used. O, a unit of time domain in OFDM
The FDM symbol includes at least one or more subcarriers and is converted into a time-continuous signal in baseband signal generation.

The subcarrier spacing (SCS: SubCarrier Spacing) is the subcarrier spacing Δf = 2 ^μ · 1
It may be provided at 5 kHz. For example, μ may be any of the values 0-5. For carrier band parts (CBP), the value μ used for setting the subcarrier spacing may be given by the upper layer parameter (setting μ for subcarrier spacing).

In the wireless communication system according to one aspect of the present embodiment, a time unit T _s is used to represent the length of the time domain. The time unit T _s is given by T _s = 1 / (Δf _max · N _f ). Δf _max may be the maximum value of subcarrier spacing supported in the wireless communication system according to an aspect of the present embodiment. Δf _max may be Δf _max = 480 kHz. The time unit T _s is also called T _s . The constant κ is κ = Δf _max · N _f / (Δf _ref N _{f, ref} ) = 64. Δf _ref is 15 kHz, and N _{f, ref} is 2048.

The constant κ may be a value indicating the relationship between the reference subcarrier interval and T _s . The constant κ may be used for subframe length. The number of slots included in the subframe may be given based at least on the constant κ. Δf _ref is a reference subcarrier interval, and N _{f, ref} is a value corresponding to the reference subcarrier interval.

Transmission on the downlink and / or transmission on the uplink is made up of frames of 10 ms length. A frame is configured to include ten subframes. The subframe length is 1 ms. The length of the frame may be given regardless of the subcarrier spacing Δf. That is, the setting of the frame may be given without being based on μ. The subframe length may be given regardless of the subcarrier interval Δf. That is, the setting of subframes may be given not based on μ.

For the subcarrier spacing configuration μ, the number and the index of slots included in the subframe may be given. For example, the first slot number n ^μ _s may be given in ascending order in the range of 0 to N ^{subframe, μ} _slot −1 in a ^subframe . For the setting μ of subcarrier spacing, the number and the index of slots included in a frame may be given. For example, the second slot numbers n ^μ _{s, f} may be given in ascending order in the range of 0 to N ^{frame, μ} _slot −1 in a ^frame . Consecutive N ^slot _symb OFDM symbols may be included in one slot. The N ^slot _symb may be given based at least on a slot configuration and part or all of a CP (Cyclic Prefix) configuration. The slot configuration may be given by the upper layer parameter slot_configuration. The CP settings may be given based at least on the upper layer parameters. CP configuration may be provided based at least on dedicated RRC signaling.

FIG. 2 is an example showing the relationship between N ^slot _symb , setting of subcarrier spacing μ, slot setting, and CP setting according to an aspect of the present embodiment. In FIG. 2A, when the slot setting is 0 and the CP setting is normal CP (normal cyclic prefix), N ^slot _symb = 14, N ^{frame, μ} _slot = 40, N ^{subframe, μ} _slot = 4. Also, in FIG. 2B, when the slot setting is 0 and the CP setting is extended CP (extended cyclic prefix), N ^slot _symb = 12, N ^{frame, μ} _slot = 40, N ^{subframe, μ} _slot = 4 . N ^slot _symb in slot setting 0 may correspond to twice N ^slot _symb in slot setting 1.

  The following describes physical resources.

An antenna port is defined by the channel on which symbols are transmitted on one antenna port can be estimated from the channel on which other symbols are transmitted on the same antenna port. Two antenna ports may be QCL (Quasi Co-Located) if the large scale property of the channel in which the symbol is transmitted at one antenna port can be deduced from the channel in which the symbol is transmitted at the other antenna port It is called). The large-scale feature may include at least a long-term feature of the channel. Large-scale features include delay spread, Doppler spread, Doppler shift, average gain, average delay, and beam parameters (spatial Rx parameters). It may contain at least part or all. If the first antenna port and the second antenna port are QCL with respect to beam parameters, 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 And may be identical. If the first antenna port and the second antenna port are QCL in terms of beam parameters, then the transmit beam assumed by the receiver for the first antenna port and the transmit beam assumed by the receiver for the second antenna port And may be identical. The terminal device 1 assumes that the two antenna ports are QCL when the large-scale characteristic of the channel in 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 You may That the two antenna ports are QCLs may be assumed that the two antenna ports are QCLs.

A resource grid of N ^μ _{RB, x} N ^RB _sc subcarriers and N ^(μ) _symb N ^{subframes, μ} _symb OFDM symbols is provided for each of the setting of subcarrier spacing and the set of carriers. N ^μ _{RB, x} may indicate the number of resource blocks given for setting μ of the subcarrier spacing for carrier x. Carrier x indicates either a downlink carrier or an uplink carrier. That is, x is "DL" or "UL". N ^μ _RB is a designation including N ^μ _{RB, DL} and N ^μ _{RB, UL} . N ^RB _sc may indicate the number of subcarriers included in one resource block. One resource grid may be provided for each antenna port p, and / or for each setting μ of subcarrier spacing, and / or for each setting of Transmission direction. The transmission direction includes at least downlink (DL: DownLink) and uplink (UL: UpLink). Hereinafter, a set of parameters including at least a part or all of the setting of the antenna port p, the subcarrier spacing setting μ, and the setting of the transmission direction is also referred to as a first wireless parameter set. That is, one resource grid may be provided for each first radio parameter set.

  In downlink, a carrier corresponding to a serving cell is referred to as a downlink carrier (or downlink component carrier). In uplink, a carrier corresponding to a serving cell is referred to as an uplink carrier (uplink component carrier). The downlink component carrier and the uplink component carrier are collectively referred to as a component carrier.

Each element in the resource grid provided for each first radio parameter set is referred to as a resource element. A resource element is identified by an index k _{sc in the} frequency domain and an index l in the time domain. For a first set of radio parameters, the resource element is identified by an index k _{sc in the} frequency domain and an index l in the time domain. The resource element identified by the index k _{sc in the} frequency domain and the index l in the time domain is also referred to as a resource element (k _sc , l). The index k _{sc in the} frequency domain indicates any value from 0 to N ^μ _RB N ^RB _sc −1. N ^μ _RB may be the number of resource blocks given for setting μ of the subcarrier spacing. N ^RB _sc is the number of subcarriers included in the resource block, and N ^RB _sc = 12. The frequency domain index k _sc may correspond to the subcarrier index k _sc . The time domain index l may correspond to the OFDM symbol index l.

FIG. 3 is a schematic view showing an example of a resource grid in a subframe according to an aspect of the present embodiment. In the resource grid of FIG. 3, the horizontal axis is an index l in the time domain and the vertical axis is an index k _sc in the frequency domain. In one subframe, the frequency domain of the resource grid may include N ^μ _RB N ^RB _sc subcarriers, and the time domain of the resource grid may include 14.2 ^μ OFDM symbols. A resource block is configured to include N ^RB _sc subcarriers. The time domain of the resource block may correspond to one OFDM symbol. The time domain of the resource block may correspond to 14 OFDM symbols. The time domain of the resource block may correspond to one or more slots. The time domain of the resource block may correspond to one subframe.

The terminal device 1 may be instructed to perform transmission and reception using only a subset of the resource grid. The subset of resource grids may also be referred to as carrier band parts, which may be given by higher layer parameters and / or DCI. The carrier band part is also referred to as a band part (BP: bandwidth part). That is, the terminal device 1 may not be instructed to perform transmission and reception using all the sets of resource grids. That is, the terminal device 1 may be instructed to perform transmission and reception using a part of frequency resources in the resource grid. One carrier band part may be composed of a plurality of resource blocks in the frequency domain. One carrier band part may be composed of a plurality of continuous resource blocks in the frequency domain. The carrier band part is also called BWP (Band Width Part). The carrier band part set for the downlink carrier is also referred to as a downlink carrier band part. The carrier band part set for the uplink carrier is also referred to as an uplink carrier band part.

  A set of downlink carrier band parts may be configured for each of the serving cells. The set of downlink carrier band parts may include one or more downlink carrier band parts. A set of uplink carrier band parts may be configured for each of the serving cells. The set of uplink carrier band parts may include one or more uplink carrier band parts.

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

The higher layer signal may be common RRC signaling. Common RRC signaling includes at least part or all of the following features C1 to C3.
It is mapped to feature C1) BCCH logical channel, or feature C2 mapped to CCCH logical channel, and feature C3) PBCH including at least a radioResourceConfigCommon information element

  The radioResourceConfigCommon information element may include information indicating a configuration commonly used in the serving cell. The configuration commonly used in the serving cell may include at least the configuration of the PRACH. The configuration of the PRACH may at least indicate one or more random access preamble indexes. The configuration of the PRACH may at least indicate time / frequency resources of the PRACH.

The higher layer signal may be dedicated RRC signaling. Dedicated RRC signaling comprises at least some or all of the following features D1 to D2.
Feature D1) At least feature D2 mapped to DCCH logical channel) radioResourceConfigDedicated information element at least

  The radioResourceConfigDedicated information element may include at least information indicating a setting unique to the terminal device 1. The radioResourceConfigDedicated information element may include at least information indicating the setting of the carrier band part. The setting of the carrier band part may at least indicate the frequency resource of the carrier band part.

For example, the MIB, the first system information, and the second system information may be included in common RRC signaling. It is also mapped to the DCCH logical channel and
An upper layer message including at least dioResourceConfigCommon may be included in common RRC signaling. Also, upper layer messages mapped to the DCCH logical channel and not including the radioResourceConfigCommon information element may be included in dedicated RRC signaling. Also, upper layer messages mapped to the DCCH logical channel and including at least the radioResourceConfigDedicated information element may be included in dedicated RRC signaling.

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

  The radioResourceConfigDedicated information element may at least include information related to the PRACH resource. The radioResourceConfigDedicated information element may include at least information related to initial connection setup.

  Hereinafter, physical channels and physical signals according to various aspects of the present embodiment will be described.

The uplink physical channel may correspond to a set of resource elements that carry information generated in the upper layer. The uplink physical channel is a physical channel used in uplink. In the wireless communication system according to one aspect of the present embodiment, at least part or all of the following uplink physical channels are 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). Uplink control information includes channel state information (CSI), scheduling request (SR: Scheduling Request), downlink data (TB: Transport block, MAC PDU: Medium Access Control Protocol Data Unit, DL-SCH: Downlink) -Shared Channel, PDSCH: A part or all of Hybrid Automatic Repeat request ACKnowledgement (HARQ-ACK) for Physical Downlink Shared Channel (PDCCH) is included. HARQ-ACK is an acknowledgment (ACK) corresponding to downlink data.
Or NACK (negative-acknowledgement) may be indicated.

HARQ-ACK is one or more CBG (Code Block) included in downlink data.
It may indicate ACK or NACK corresponding to each of the groups). HARQ-ACK is also referred to as HARQ feedback, HARQ information, HARQ control information, and ACK / NACK.

  The scheduling request may at least be used to request PUSCH resources for initial transmission.

The channel state information may include at least part or all of a channel quality indicator (CQI) and a rank indicator (RI). The channel quality indicator may include a Precoder Matrix Indicator (PMI). CQ
I is an indicator related to channel quality (eg, propagation strength), and PMI is an indicator indicating a precoder. The RI is an indicator that indicates a transmission rank (or the number of transmission layers).

  The PUSCH is used to transmit uplink data (TB, MAC PDU, UL-SCH, PUSCH). The PUSCH may be used to transmit HARQ-ACK and / or channel state information along with uplink data. Also, PUSCH may be used to transmit only channel state information or only HARQ-ACK and channel state information. PUSCH is used to transmit random access message 3.

The PUSCH can be scrambled (Scrambling), modulated (Modulation), layer mapping (layer mapping), transmit precoding (Transform precoding), precoding (precoding), and physical resource mapping (Mapping to physical resource).
At least based on part or all of The terminal device 1 may assume that PUSCH is provided based at least on part or all of scrambling, modulation, layer mapping, transmission precoding, precoding, and physical resource mapping.

In scrambling, for codeword q, a block of bits b ^(q) (i) is scrambled based at least on the scrambling sequence c ^(q) (i) to generate b ^(q) _sc (i) It may be done. In the block of bits b ^(q) (i), i is an index indicating a value in the range of 0 to M ^(q) _bit −1. M ^(q) _bits may be the number of bits of codeword q transmitted on PUSCH. The scrambling sequence c ^(q) (i) may be a sequence given at least based on a pseudo random function (for example, an M sequence, a Gold sequence, etc.). In scrambling, for codeword q, a block of bits b ^(q) (i) is scrambled based on scrambling sequence c ^(q) (i) and equation (1) below, and a block of scrambled bits b ^(q) _sc (i) may be generated.

  mod (A, B) may be a function that outputs the remainder obtained by dividing A by B. mod (A, B) may be a function that outputs a value corresponding to the remainder of dividing A by B.

In modulation, for codeword q, a block of scrambled bits b ^(q) _sc (i) is modulated based on a predetermined modulation scheme to generate a block of complex valued modulation symbols d ^(q) (i _mod ) It is also good. In a block d ^(q) (i _mod ) of complex valued modulation symbols, i _mod denotes values ranging from 0 to M ^(q) _symb -1. M ^(q) _symb may be the number of complex value modulation symbols of codeword q transmitted on PUSCH. The predetermined modulation scheme may include at least part or all of at least Quadrature Phase Shift Keying (QPSK), Quadrature Amplitude Modulation (16 QAM), 64 QAM, and 256 QAM. Note that the predetermined modulation scheme may be given based at least on DCI for scheduling PUSCH.

In layer mapping, a block d ^(q) (i _mod ) of complex valued modulation symbols for each codeword is mapped to one or more layers based on a predetermined mapping procedure, and a block x of complex valued modulation symbols i _layer ) may be generated. In a block of complex value modulation symbols x (i _layer ), i _layer has a value in the range of 0 to M ^layer _symb -1. M ^layer _symb may be the number of complex value modulation symbols per layer. A block of complex value modulation symbols x (i _layer ) is x (i _layer ) = [x ⁽⁰⁾ (i _layer ). . . x ^(v-1) (i _layer )] ^T may be used. Here, [*] ^T may indicate that the rows and columns of * are transposed. The number of elements of the block of complex valued modulation symbols x (i _layer ) may correspond to the number of layers for all codewords transmitted on the PUSCH. Here, v is the number of layers for PUSCH.

If transmit precoding is configured for PUSCH, then v = 1 and the block of complex valued modulation symbols x (i _layer ) is a set of M ^layer _symb / M ^PUSCH _sc complex valued modulation symbols It is divided. ^{Here, M PUSCH} _sc may correspond to the number of subcarriers allocated for the PUSCH. M ^PUSCH _sc may be given by M ^PUSCH _RB × N ^RB _sc . The M ^PUSCH _RB may be a PUSCH band represented as the number of resource blocks. The M ^PUSCH _RB may be the number of resource blocks included in the PUSCH. If the transmission precoding is set for the ^PUSCH, it may be set so as to satisfy the ^{_{M PUSCH RB = 2 α2 × 3}} α3 × 5 α5. Here, α2 is a non-negative integer. Also, α3 is a non-negative integer. Also, α5 is a non-negative integer. N ^RB _sc may be the number of subcarriers included in the resource block. That is, N ^RB _sc may be 12. Each of the set of M ^layer _symb / M ^PUSCH _sc complex-valued modulation symbols may correspond to one OFDM symbol.

If transmit precoding is configured for PUSCH, a block y ^(λ) (i _layer ) of complex valued modulation symbols may be provided based at least on Equation (2) below.

In equation (2), λ indicates the index of the layer. If transmit precoding is configured for PUSCH, then λ = 0. Also, j represents an imaginary unit. Moreover, (pi) shows a pi. Also, e indicates the number of Napiers. Also, k _sc indicates the range from 0 to M ^PUSCH _sc −1. Moreover, l shows the range of 0 to M ^layer _symb / M ^PUSCH _sc -1.

If transmission precoding is not configured for PUSCH, then it may be a block of complex valued modulation symbols y ^(λ) (i _layer ) = x ^(λ) (i _layer ).

In precoding, a block y (i _layer ) of complex valued modulation symbols may be subjected to a predetermined _precoding to give z (i _ap ). y (i _layer ) = [y ⁽⁰⁾ (i _layer ). . . y ^(v-1) (i _layer )] ^T may be used. i _ap represents a value in the range of 0 to M ^layer _symb −1. z (i _ap ) = [z ^(0
) (I _ap ). . . z ^(P-1) (i _ap )] ^T may be used. Here, if the matrix for precoding is W, it may be given as z (i _ap ) = Wy (i _layer ). Also, P indicates the number of antenna ports for PUSCH. P may be the same as v. In precoding, the block y (i _layer ) of complex valued modulation symbols may be converted to the block z (i _ap ) of complex valued modulation symbols for P antenna ports. The number of rows of the matrix W for precoding may correspond to the number P of antenna ports. The number of columns of the matrix W for precoding may correspond to the number of layers v.

One or more codebooks may be configured for the matrix W for precoding. The number of codebooks may be given based at least on the number of layers λ for the PUSCH and / or the number of antenna ports P for the PUSCH. In codebook based transmission, one codebook may be selected for PUSCH. In non-codebook based transmission, the matrix W for precoding may be an identity matrix.

In codebook-based transmission, the block y ^(λ) (i _layer ) of complex-valued modulation symbols mapped to one layer may correspond to a predetermined number of antenna ports. The predetermined number may correspond to the number of rows of the matrix W for precoding. In codebook-based transmission, the block y ^(λ) (i _layer ) of complex-valued modulation symbols mapped to one layer may correspond to all antenna ports for PUSCH. In non-codebook based transmission, the block y ^(λ) (i _layer ) of complex-valued modulation symbols mapped to one layer may correspond to one antenna port. . In non-codebook based transmission, it may be a block y ^(λ) (i _layer ) = z ^(ρ) (i _layer ) of complex-valued modulation symbols mapped to one layer. ρ is the index for the antenna port.

When transmission precoding is not configured for PUSCH, in mapping to physical resources (physical resource mapping), block z ^(p) (i _ap ) of complex value modulation symbols for antenna port p is an element A1 below: The resource index (k _sc , l) of the resource block allocated for the PUSCH may be preferentially mapped to the subcarrier index k _sc , except for resource elements that at least partially satisfy all or part of the element A4. Here, p may be an index of an antenna port. p shows the value of the range of 0 to P-1. Here, by mapping with priority subcarrier index _{k sc} is resource elements _(k sc, l) from _{k sc k sc} + M (the value M is predefined) symbols l of, k from _{k sc} symbol l + 1 _sc + M, ···, symbol l + N (N is a predetermined value) may be to continue to map and so _{k sc} + M from _{k sc} of.
Element A1) Resource element element A2 to which UL DMRS related to PUSCH is mapped Resource element element A3 to which UL PTRS is mapped Resource element A4 to which transmission of SRS is configured

  The reservation resource may be at least a resource configured for PUSCH rate match. The reservation resource may be indicated by a group common PDCCH.

The index k _{sc in the} frequency domain and the index l in the time domain included in the resource element (k _sc , l) are also referred to as an index pair. The index pair includes at least an index k _{sc in the} frequency domain and an index l in the time domain. The index pair may not include the antenna port index p. The index pair of the resource element indicated by the index k _{sc in the} frequency domain and the index l in the time domain is also referred to as index pair (k _sc , l).

When transmit precoding is configured for PUSCH, in mapping to physical resources (physical resource mapping), block z ^(p) (i _ap ) of complex value modulation symbol for antenna port p is an element described below With the exception of resource elements satisfying at least part or all of B1 to element B4, the subcarrier index k _sc may be preferentially mapped from resource elements (k _sc , l) of resource blocks allocated for PUSCH . Here, p may be an index of an antenna port. p shows the value of the range of 0 to P-1. Here, by mapping with priority subcarrier index _{k sc} is resource elements _(k sc, l) from _{k sc k sc} + M (the value M is predefined) symbols l of, k from _{k sc} symbol l + 1 _sc + M, ···, symbol l + N (N is a predetermined value) may be to continue to map and so _{k sc} + M from _{k sc} of.
Element B1) OFDM symbol element B2 including at least a resource element to which UL DMRS associated with PUSCH is mapped Resource element to which UL PTRS is mapped.
Element B3) Resource element for which transmission of SRS is configured B4) Reserved resource

A block z ^(p) (i _ap ) of complex valued modulation symbols for antenna port p in the mapping to physical resources (physical resource mapping), regardless of whether transmit precoding is configured for PUSCH Prioritizes the subcarrier index k _sc from the resource element (k _sc , l) of the resource block allocated for PUSCH, except for the resource element satisfying at least part or all of elements B1 to B below. It may be mapped. Here, p may be an index of an antenna port. p shows the value of the range of 0 to P-1. Here, by mapping with priority subcarrier index _{k sc} is resource elements _(k sc, l) from _{k sc k sc} + M (the value M is predefined) symbols l of, k from _{k sc} symbol l + 1 _sc + M, ···, symbol l + N (N is a predetermined value) may be to continue to map and so _{k sc} + M from _{k sc} of.
Element C1) Resource element element C2 to which UL DMRS related to PUSCH is mapped Resource element element C3 to which UL PTRS is mapped Resource element C4 to which transmission of SRS is set up

  The PRACH is used to transmit a random access preamble (random access message 1). The PRACH indicates an initial connection establishment procedure, a handover procedure, a connection re-establishment procedure, synchronization for transmission of uplink data (timing adjustment), and a request for resources for PUSCH. Used for The random access preamble may be used to notify the base station device 3 of an index (random access preamble index) given by the upper layer of the terminal device 1.

The random access preamble may be provided by cyclic shifting a Zadoff-Chu sequence corresponding to the physical root sequence index u. The Zadoff-Chu sequence may be generated based on the physical route sequence index u. Multiple random access preambles may be defined in one serving cell. The random access preamble may be identified based at least on the index of the random access preamble. Different random access preambles corresponding to different indexes of random access preamble may correspond to different combinations of physical root sequence index u and cyclic shift. Physical route sequence index u and cyclic shift may be given based at least on information included in system information. The physical route sequence index u may be an index that identifies a sequence included in a random access preamble. The random access preamble may be identified based at least on the physical root sequence index u.

In FIG. 1, in uplink radio communication, the following uplink physical signals are used. The uplink physical signal may not be used to transmit the information output from the upper layer, but is used by the physical layer.
-UL DMRS (UpLink Demodulation Reference Signal)
・ SRS (Sounding Reference Signal)
-UL PTRS (UpLink Phase Tracking Reference Signal)

UL DMRS relates to PUSCH and / or PUCCH transmission. UL
DMRS is multiplexed with PUSCH or PUCCH. The base station apparatus 3 may use UL DMRS to perform PUSCH or PUCCH channel correction. Hereinafter, transmitting together the PUSCH and the UL DMRS associated with the PUSCH is simply referred to as transmitting the PUSCH. Hereinafter, transmitting together the PUCCH and the UL DMRS associated with the PUCCH is simply referred to as transmitting the PUCCH. The UL DMRS associated with PUSCH is also referred to as UL DMRS for PUSCH. The UL DMRS associated with PUCCH is also referred to as UL DMRS for PUCCH.

  The SRS may not be associated with PUSCH or PUCCH transmission. The base station apparatus 3 may use SRS for channel state measurement. The SRS may be transmitted in a predetermined number of OFDM symbols from the end of the subframe in the uplink slot or from the end.

  The UL PTRS may be a reference signal used at least for phase tracking. The UL PTRS may be associated with a UL DMRS group including at least antenna ports used for one or more UL DMRSs. The association between the UL PTRS and the UL DMRS group may be that the antenna port of the UL PTRS and part or all of the antenna ports included in the UL DMRS group are at least QCL. The UL DMRS group may be identified based at least on the antenna port with the lowest index in UL DMRSs included in the UL DMRS group. The UL PTRS may be mapped to the antenna port with the lowest index at one or more antenna ports to which one codeword is mapped. The UL PTRS may be mapped to the first layer if one codeword is at least mapped to the first layer and the second layer. The UL PTRS may not be mapped to the second layer. The index of the antenna port to which the UL PTRS is mapped may be given based at least on the downlink control information.

In FIG. 1, in downlink radio communication from the base station device 3 to the terminal device 1, the following downlink physical channels are used. The downlink physical channel is used by the physical layer to transmit information output from higher layers.
・ PBCH (Physical Broadcast Channel)
・ PDCCH (Physical Downlink Control Channel)
・ PDSCH (Physical Downlink Shared Channel)

  The PBCH is used to transmit a master information block (MIB: Master Information Block, BCH, Broadcast Channel). The PBCH may be transmitted based on a predetermined transmission interval. For example, the PBCH may be transmitted at 80 ms intervals. The content of the information contained in the PBCH may be updated every 80 ms. The PBCH may be composed of 288 subcarriers. The PBCH may be configured to include two, three or four OFDM symbols. The MIB may include information related to a synchronization signal identifier (index). The MIB may include a slot number in which the PBCH is transmitted, a subframe number, and information indicating at least a part of a radio frame number.

  The PDCCH is used to transmit downlink control information (DCI). Downlink control information is also referred to as DCI format. The downlink control information may at least include either a downlink grant or an uplink grant. The DCI format used for PDSCH scheduling may be referred to as downlink grant. The DCI format used for PUSCH scheduling may be referred to as uplink grant. The downlink grant is also referred to as downlink assignment or downlink allocation.

The DCI format is a TBS information field mapped to information bits indicating at least a size of a transport block (TBS: Transport Block Size) transmitted on PDSCH, and at least a set of resource blocks to which the PDSCH is mapped in the frequency domain. Resource allocation information field (Resource allocation field) mapped to the information bit indicating, MCS information field mapped to information bit indicating at least a modulation scheme for the PDSCH, HARQ process number corresponding to the transport block HARQ process number information field mapped to information bit to indicate, NDI indication information field mapped to information bit indicating at least NDI (New Data Indicator) corresponding to the transport block And at least part or all of an RV information field mapped to an information bit indicating at least an RV (Redundancy Version) for the transport block.

  One or more information fields included in the DCI format may be mapped to information bits provided by joint coding of multiple indication information. For example, the DCI format may include an MCS information field mapped to information bits provided based at least on joint coding of information related to TBS and information indicating modulation scheme of PDSCH.

  In various aspects of this embodiment, the number of resource blocks indicates the number of resource blocks in the frequency domain, unless otherwise stated.

  One downlink grant is at least used for scheduling of one PDSCH in one serving cell. The downlink grant is at least used for scheduling of the PDSCH in the same slot as the slot in which the downlink grant was transmitted.

  One uplink grant is used at least for scheduling of one PUSCH in one serving cell.

  One physical channel may be mapped to one serving cell. One physical channel may not be mapped to multiple serving cells.

  The terminal device 1 sets one or more control resource sets (CORESET: Control Resource SET) for searching for PDCCH. The terminal device 1 attempts to receive the PDCCH on one or more control resource sets.

  The control resource set may indicate a time frequency domain in which one or more PDCCHs may be mapped. The control resource set may be an area where the terminal device 1 attempts to receive the PDCCH. The control resource set may be configured by continuous resources (Localized resources). The control resource set may be configured by non-consecutive resources (distributed resources).

  In the frequency domain, the unit of control resource set mapping may be a resource block. For example, in the frequency domain, the unit of mapping of control resource sets may be six resource blocks. In the time domain, the unit of mapping of control resource sets may be OFDM symbols. For example, in the time domain, the unit of mapping of control resource sets may be one OFDM symbol.

  The frequency domain of the control resource set may be identical to the system bandwidth of the serving cell. Also, the frequency domain of the control resource set may be provided based at least on the system bandwidth of the serving cell. The frequency domain of the control resource set may be provided based at least on the upper layer signal and / or the downlink control information.

  The time domain of the control resource set may be provided based at least on upper layer signaling and / or downlink control information.

One control resource set is a common control resource set
) May be. The common control resource set may be a control resource set commonly set for a plurality of terminal devices 1. The common control resource set may be provided based at least on the MIB, the first system information, the second system information, the common RRC signaling, and part or all of the cell IDs. For example, time resources and / or frequency resources of a control resource set configured to monitor PDCCH used for scheduling of first system information may be provided based at least on the MIB.

  One control resource set may be a dedicated control resource set. The dedicated control resource set may be a control resource set configured to be dedicated for the terminal device 1. The dedicated control resource set may be provided based at least on dedicated RRC signaling and some or all of the C-RNTI values.

  The control resource set may include a set of PDCCHs (or PDCCH candidates) that the terminal device 1 monitors. The control resource set may be configured to include one or more search spaces (search space, SS: Search Space).

A search region is configured to include one or more PDCCH candidates at an aggregation level (Aggregation level). The terminal device 1 receives the PDCCH candidate included in the search area, and tries to receive the PDCCH. Here, the PDCCH candidate is also referred to as a blind detection candidate.

The set of search areas is configured to include one or more search areas. A set of search areas may be CSS (Common Search Space). The CSS may be provided based at least on part or all of the MIB, the first system information, the second system information, the common RRC signaling, and the cell ID.

  One set of search areas may be USS (UE-specific Search Space). The USS may be provided based at least on dedicated RRC signaling and some or all of the C-RNTI values.

  The common control resource set may include at least one or both of CSS and USS. The dedicated control resource set may include at least one or both of CSS and USS.

Physical resource of search area is a unit of control channel (CCE: Control Channel Element)
It consists of The CCE is configured by a predetermined number of resource element groups (REGs). For example, CCE may be configured by six REGs. The REG may be configured by one OFDM symbol of one PRB (Physical Resource Block). That is, the REG may be configured to include 12 resource elements (RE: Resource Element). The PRBs are also simply referred to as RBs (Resource Blocks).

The PDSCH is used to transmit downlink data (DL-SCH, PDSCH). P
DSCH is at least used to transmit random access message 2 (random access response). The PDSCH is at least used to transmit system information including parameters used for initial access.

In FIG. 1, the following downlink physical signals are used in downlink radio communication. The downlink physical signal may not be used to transmit the information output from the upper layer, but is used by the physical layer.
・ Synchronization signal (SS: Synchronization signal)
・ DL DMRS (DownLink DeModulation Reference Signal)
・ Shared RS (Shared Reference Signal)
・ CSI-RS (Channel State Information-Reference Signal)
・ DL PTRS (DownLink Phase Tracking Reference Signal)
・ TRS (Tracking Reference Signal)

  The synchronization signal is used by the terminal device 1 to synchronize in the downlink frequency domain and / or time domain. The synchronization signal includes PSS (Primary Synchronization Signal) and SSS (Secondary Synchronization Signal).

  The SS block (SS / PBCH block) includes at least part or all of PSS, SSS, and PBCH. Each antenna port of PSS, SSS, and part or all of PBCH included in the SS block may be identical. Some or all of PSS, SSS, and PBCH included in the SS block may be mapped to consecutive OFDM symbols. The CP settings of part or all of PSS, SSS, and part or all of PBCH included in the SS block may be identical. The setting μ of the respective subcarrier spacings of part or all of PSS, SSS, and PBCH included in the SS block may be identical.

The DL DMRS relates to the transmission of PBCH, PDCCH, and / or PDSCH. The DL DMRS is multiplexed to the PBCH, PDCCH or PDSCH. The terminal device 1 may use the PBCH, the PDCCH, or the DL DMRS corresponding to the PDSCH to perform channel correction of the PBCH, the PDCCH, or the PDSCH. Hereinafter, the fact that the PBCH and the DL DMRS associated with the PBCH are transmitted together is referred to as the PBCH being transmitted in short. Hereinafter, transmission of the PDCCH and the DL DMRS associated with the PDCCH together is referred to simply as transmission of the PDCCH. Hereinafter, the fact that the PDSCH and the DL DMRS associated with the PDSCH are transmitted together is referred to simply as the PDSCH is transmitted. DL DMRSs associated with PBCH are also referred to as DL DMRSs for PBCH. DL DMRS associated with PDSCH is also referred to as DL DMRS for PDSCH. The DL DMRS associated with the PDCCH is also referred to as the DL DMRS associated with the PDCCH.

Shared RS may be associated with at least transmission of PDCCH. Shared
The RS may be multiplexed to the PDCCH. The terminal device 1 may use Shared RS to perform PDCCH channel correction. Hereinafter, that the PDCCH and the Shared RS associated with the PDCCH are transmitted together is also referred to simply as the PDCCH is transmitted.

The DL DMRS may be a reference signal individually set in the terminal device 1. The sequence of DL DMRS may be given based at least on parameters individually set in the terminal device 1. The sequence of DL DMRS may be given based at least on UE specific values (eg, C-RNTI, etc.). The DL DMRS may be transmitted separately for PDCCH and / or PDSCH. On the other hand, Shared RS may be a reference signal commonly set to a plurality of terminal devices 1. The series of Shared RSs may be given regardless of the parameters individually set in the terminal device 1. For example, Shared
The sequence of RSs may be given based on the slot number, the mini slot number, and at least a part of the cell ID (identity). Shared RS may be a reference signal transmitted regardless of whether PDCCH and / or PDSCH is transmitted.

  The CSI-RS may be at least a signal used to calculate channel state information. The pattern of CSI-RS assumed by the terminal device may be given by at least the upper layer parameter.

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

  The DL PTRS may be associated with a DL DMRS group including at least antenna ports used for one or more DL DMRSs. The association between the DL PTRS and the DL DMRS group may be that at least some or all of the antenna ports of the DL PTRS and the antenna ports included in the DL DMRS group are QCLs. The DL DMRS group may be identified based at least on the antenna port with the lowest index in the DL DMRS included in the DL DMRS group.

  The TRS may be a signal that is at least used for time and / or frequency synchronization. The pattern of TRS assumed by the terminal device may be given based at least on the upper layer parameter and / or DCI.

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

BCH (Broadcast CHannel), UL-SCH (Uplink-Shared CHannel) and DL-SCH (Downlink-Shared CHannel) are transport channels. A channel used in a medium access control (MAC) layer is called a transport channel. The unit of transport channel used in the MAC layer is also referred to as transport block (TB) or MAC PDU. In the MAC layer, control of HARQ (Hybrid Automatic Repeat request) is performed for each transport block. The transport block is a unit of data delivered by the MAC layer to the physical layer. In the physical layer, transport blocks are mapped to codewords and modulation processing is performed for each codeword.

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

  PUSCH and PDSCH may be at least used to transmit RRC signaling and / or MAC CE. Here, RRC signaling transmitted on the PDSCH from the base station device 3 may be signaling common to a plurality of terminal devices 1 in the serving cell. The signaling common to a plurality of terminal devices 1 in the serving cell is also referred to as common RRC signaling. RRC signaling transmitted on the PDSCH from the base station device 3 may be dedicated signaling (also referred to as dedicated signaling or UE specific signaling) for a certain terminal device 1. Signaling dedicated to the terminal device 1 is also referred to as dedicated RRC signaling. The upper layer parameters unique to the serving cell may be transmitted using common signaling to a plurality of terminal devices 1 in the serving cell or dedicated signaling to a certain terminal device 1. The UE-specific upper layer parameters may be transmitted to a certain terminal device 1 using dedicated signaling. The PDSCH, which includes dedicated RRC signaling, may be scheduled by the PDCCH in the first control resource set.

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

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

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

The coding method for the PUSCH codeword q will be described below. Here, the codeword q corresponds to at least one transport block _ak .

FIG. 4 is a diagram showing an example of encoding of the transport block a _k (a ₀ ,... _{A A-1} ) in the baseband unit 13 according to an aspect of the present embodiment. The baseband unit 13 includes a CRC generation unit (CRC generator) 3001, a code block segmentation unit (Code block segmentation) 3002, a low density parity check (LDPC) encoding unit (LDPC encoder) 3003, and a bit selection unit (Bit selection) 3004. , A bit interleaving unit (Bit interleaving) 3005, and a code block concatenation unit (Code block concatenation) 3006 may be configured to include at least part or all.

The CRC generation unit 3001 generates a first CRC sequence p _k (p ₀ ,... P _L1-1 ) based at least on the transport block a _k (a ₀ ,... _{A A-1} ). . CRC sequence _{p k} of said first, provide error detection of the transport block _{a k.} Here, A corresponds to TBS for the transport block. Also, L1 corresponds to the number of parity bits included in the first CRC sequence.

The code block division unit 3002 transports the transport block b _k (b ₀ ,... B _B-1 ) into one or a plurality of code blocks _{cr, k} ( _{cr, 0 ,.} Divide into r indicates an index of a code block included in the transport block b _k . Kr is the number of bits included in the r-th code block. Kr is also referred to as code block size.

The transport block b _k is divided into the one or more code blocks _{cr, k} not exceeding the Maximum code block size K _cb . The maximum code block size K _cb may be given at least based on a Base graph used in LDPC coding. For example, when the base graph used in LDPC coding is base graph 1, the maximum code block size K _cb may be 8448. In addition, when the base graph used in the LDPC coding is the base graph 2, the maximum code block size K _cb may be 3840.

When the number of code blocks included in the transport block b _k is two or more, a second CRC sequence q _{r, k} (q _{r, k} ) is generated for each of the one or more code blocks _{cr, k . 0} ,..., Q _{r, L2-1} ) are given. L2 corresponds to the number of parity bits included in the second CRC sequence. The second CRC sequence q _{r, k} is added to each of the one or more code blocks, and one or more code blocks C _{r, k} (C _{r, 0} ,... C _{r, K r -1} , _{Cr , Kr} , ... _{Cr, Kr + L2-1} ) are generated. When the number of code blocks included in the transport block b _k is 1, the second CRC sequence q _{0, k} is not added to the code block c _{0, k} . That is, when the number of code blocks included in the transport block b _k is 1, the code block C _{0, k} is equal to the code block c _{0, k} .

The LDPC encoding unit 3003 performs LDPC encoding on each of one or more code blocks C _{r, k} to encode a coded bit sequence d _{r, k} (d _{r, 0} ,..., D _{r, N-1} ) is generated. Here, the code block input to the LDPC encoding unit 3003 is also referred to as a code block C _k . The code block C _k indicates at least one of one or more code blocks corresponding to the transport block a _k . The LDPC coding unit 3003 performs LDPC coding on the input code block C _k to generate a coded bit sequence d _k (d ₀ ,... D _N-1 ). N corresponds to the number of coded bits of the coded bit sequence d _{r, k} and / or the coded bit sequence d _k .

The number of bits included in the code block Ck input to the LDPC encoding unit 3003 is also referred to as K _input . That is, when the number of code blocks included in the transport block b _k is two or more, K _input may be Kr. In addition, when the number of code blocks included in the transport block b _k is one, K _input may be Kr + L2.

The coding matrix H _matrix used to generate the coded bit sequence d _k is given based on at least the base graph and the lift size Z _c . Here, the coding matrix H _matrix satisfies the condition shown in the following equation (3).

Here, c _vector may be a column vector configured by the code block C _k . The c _vector may be a column vector in which the number of rows is K _input and the number of columns is one. Alternatively, w _vector may be a column vector configured by parity bits provided by LDPC encoding code block C _k . The c _vector may be a column vector in which the number of rows is N + 2Zc−K and the number of columns is one. O _vector may be a column vector in which the number of rows is N + 2Zc and the number of columns is one.

The lift size Zc may be a value used at least for generating the coding matrix H _matrix .

The bit selection unit 3004 creates a cyclic buffer according to a predetermined procedure based on the coded bit sequence d _k . The length of the circular buffer is N. The rate match sequence e _k (e ₀ ,..., E _E−1 ) output by the bit selection unit 3004 is generated by reading the cyclic buffer from a predetermined position and reading E bits. Ru. Here, E may be the number of resource elements used for UL-SCH. Details of the method of determining E will be described later. Also, the predetermined position may be a position indicated at least based on a redundancy version (RV: Redandancy Version). The redundancy version may be given based at least on the uplink grant.

The bit interleaving unit 3005 interleaves the rate match sequence e _k based on a predetermined criterion to generate an interleaving sequence f _k (f ₀ ,... F _E−1 ).

The code block combining unit 3006 combines interleaving sequences f _k corresponding to one or more code blocks C _{r, k} to generate a combined sequence g _k .

Hereinafter, a method of encoding a bit sequence c ^UCI _k (c ^UCI ₀ ,... C ^UCI _KUCI-1 ) of UCI transmitted on PUSCH will be described. KUCI indicates the number of UCI bits transmitted on the PUSCH. Coding of the bit sequence c ^UCI _k gives a coded bit sequence d ^UCI _k (d ^UCI ₀ ,... D ^UCI _NUCI-1 ). NUCI indicates the number of bits included in the coded bit sequence.

FIG. 5 is a diagram illustrating an example of a first encoding method of the bit sequence c ^UCI ₀ when KUCI is 1 according to an aspect of the present embodiment. In FIG. 5, y may indicate that the same value as c ^UCI ₀ is input. y may indicate that the same value as the previous bit is input. x may indicate that a predetermined value is input. For example, the predetermined value may be one. Also, the predetermined value may be zero. Q _m may be an index (modulation order) corresponding to the modulation scheme for PUSCH. Q _m = 2 may correspond to QPSK. Q _m = 4 may correspond to 16 QAM. Q _m = 6 may correspond to 64 QAM. Q _m = 8 may correspond to 256 QAM. In the first coding method when KUCI is 1, N = Q _m .

The encoding method of bit sequence c ^UCI ₀ when KUCI is 1 may be a repetition code. When KUCI is 1, the bit sequence c ^UCI ₀ may not be encoded. The bit sequence c ^UCI ₀ when KUCI is 1 may be c ^UCI ₀ = d ^UCI ₀ .

FIG. 6 is a diagram showing an example of a first encoding method of the bit sequence c ^UCI _k (c ^UCI ₀ , c ^UCI ₁ ) in the case where KUCI is 2 according to an aspect of the present embodiment. Here, c ^UCI ₂ may be given by c ^UCI ₂ = mod (c ^UCI ₀ + c ^UCI ₁ , 2). In the first encoding method when KUCI is 1, N may be 3Q _m .

When KUCI is 3 or more and KUCI is 11 or less, the bit sequence c ^UCI _k may be a coding scheme to be scrambled based on a predetermined sequence. When KUCI is 3 or more and KUCI is 11 or less, bit sequence c ^UCI _k may be encoded based on Reed-Muller code. The Reed-Muller code is a type of block code.

  If the KUCI is 12 or more, the KUCI may be encoded based on the polar code.

The coded bit sequence d ^UCI _k may be input to a circular buffer of length N _UCI . The UCI rate match sequence e ^UCI _k is generated by starting reading the cyclic buffer from a predetermined position and reading E _UCI bits. Here, the E _UCI may be the number of resource elements used for UCI. The E _UCI may be a different value for each UCI type (first CSI, second CSI, and HARQ-ACK). Details of the method of determining the E _UCI will be described later.

The rate match sequence e ^UCI _k for the first CSI is also referred to as the rate match sequence e ^CSI1 _k . The rate match sequence e ^UCI _k for the second CSI is also referred to as the rate match sequence e ^CSI2 _k . The rate match sequence e ^UCI _k for ^{HARQ-ACK is} also referred to as rate match sequence e ^HARQ-ACK _k .

  The first CSI may include at least RI. The first CSI may include at least part or all of the CQI. The second CSI may include at least a PMI. The second CSI may include at least a CQI other than the CQI included in the second CSI. The number of CSI bits included in the second CSI may be given based at least on the value indicated by the first CSI.

Hereinafter, an exemplary method for mapping the combined sequence g _k and the rate match sequence e ^UCI _k to the PUSCH will be described.

FIG. 7 is a diagram showing an example of mapping of a combined sequence g _k and a rate match sequence e ^UCI _{k to} a PUSCH resource element according to an aspect of the present embodiment. In FIG. 7, hatched elements are resource elements for UL DMRS mapping, and grid line elements are resource elements (fourth resource) for UCI (rate match sequence e ^UCI _k ) mapping. An element indicated by a horizontal line is a resource element (third resource group) for mapping of UL PTRS. Also, the element with no pattern is a resource element (first resource group) for mapping of UL-SCH (combined sequence g _k ). The mapping of UL DMRS may be given based at least on upper layer parameters and / or one or both of uplink grants. The mapping of the UL PTRS may be given based at least on one or both of the upper layer parameters and / or the uplink grant. The rate match sequence e ^UCI _k may not be at least mapped to the RE to which the UL DMRS is mapped. The rate match sequence e ^UCI _k may at least not be mapped to the OFDM symbol comprising the RE to which the UL DMRS is mapped. The rate match sequence e ^UCI _k may not be at least mapped to the RE to which the UL PTRS is mapped.

In FIG. 7, the number of PUSCH subcarriers N ^PUSCH _sc is 24, and the number of ^PUSCH OFDM symbols N ^PUSCH _sym is 8. For example, resource elements UCI is mapped in the frequency domain, the sub-carrier number ^{N PUSCH} _sc of PUSCH, the value ^N _PUSCH sc -N minus the number ^{N PTRS} _sc subcarriers including at least resource elements PTRS is mapped ^It may be given based at least on ^PTRS _sc . For example, the interval _{N f} sub-carriers UCI is mapped _may be a _{^{N f = floor (O UCI_sym /}} (N PUSCH sc -N PTRS sc)). Here, _{OUCI_sym} is the number of UCI coded modulation symbols per OFDM symbol. O _{UCI_sym} may be O _{UCI_sym} = floor (O _UCI / N ^UCI _sym ). O _UCI may be the number of UCI coded modulation symbols. The O _UCI may be given based at least in part or all of the upper layer parameter, the uplink grant, the PUSCH MCS, the PUSCH subcarrier number N ^PUSCH _sc , and the PUSCH OFDM symbol number N ^PUSCH _sym . The N ^UCI _sym may be the number of OFDM symbols to which UCI is mapped. One coded modulation symbol may correspond to one resource element.

FIG. 8 shows a second antenna port when one codeword according to an aspect of the present embodiment is mapped to a first antenna port and a second antenna port. Combined sequence g _k and rate match sequence e ^UCI _k P for
It is a figure which shows an example of the mapping to USCH. The mapping of the combined sequence g _k and rate match sequence e ^UCI _{k to} the PUSCH for the first antenna port is assumed to be based on the mapping shown in FIG. In FIG. 8, elements indicated by hatching are resource elements for UL DMRS mapping, and elements indicated by grid lines are resource elements (5th) for mapping UCI (rate match sequence e ^UCI _k ). An element indicated by a dot) indicates a sixth resource group. Also, the element with no pattern is a resource element (second resource group) for mapping of UL-SCH (combined sequence g _k ). The combined sequence g _k is also referred to as UL-SCH or transport block. The rate match sequence e ^UCI _k is also referred to as UCI.

  The first antenna port may be an antenna port to which UL PTRS is at least mapped. The second antenna port may be an antenna port to which UL PTRS is not mapped. The UL PTRS may be at least mapped to the resource element of the first antenna port. The UL PTRS may not be mapped to the resource element of the second antenna port.

The combined sequence g _k may be at least mapped to the first resource group of the first antenna port. The first resource group corresponds to the element without pattern in FIG. The first resource group at least includes resource elements of the first antenna port. The combined sequence g _k may be at least mapped to the second resource group of the second antenna port. The second resource group corresponds to the element with no pattern in FIG. The second resource group at least includes resource elements of the second antenna port.

  The UL PTRS may be mapped to the third resource group of the first antenna port. The third resource group corresponds to the elements shown by horizontal lines in FIG. The third resource group at least includes resource elements of the first antenna port.

The rate match sequence e ^UCI _k may be at least mapped to the fourth resource group of the first antenna port. The fourth resource group corresponds to the elements shown by the grid lines in FIG. The fourth resource group at least includes resource elements of the first antenna port. The rate match sequence e ^UCI _k may be at least mapped to the fifth resource group of the second antenna port. The fifth resource group corresponds to the elements shown by the grid lines in FIG. The fifth resource group at least includes resource elements of the second antenna port.

The rate match sequence e ^UCI _k may be at least mapped to some or all of resource elements other than the resource elements included in the sixth resource group of the second antenna port. The sixth resource group corresponds to the elements indicated by dots in FIG. The sixth resource group at least includes resource elements of the second antenna port.

The sixth resource group may be a group of resources including at least part or all of the following elements 1 to 4.
Element 1) Resource element element of one or more second antenna ports of the same index pair as the index pair of resource elements of one or more of the first antenna ports to which the UL PTRS corresponding to the first antenna port is mapped 2) Among OFDM symbols included in PUSCH, the resource element of the second antenna port of the same index pair as the index pair of the resource element of the first antenna port to which the UL PTRS corresponding to the first antenna port is mapped Among the subcarriers included in the PUSCH at least including the OFDM symbol element 3), one of the same index pair as the index pair of the resource element of the first antenna port to which the UL PTRS corresponding to the first antenna port is mapped. Other sub-carrier element 4 comprising at least a resource element of the plurality of second antenna port) matches the index pairs rate matching the first antenna port resource elements of series e ^CSI2 _k is mapped for the second CSI Resource element of one or more second antenna ports of the index pair

  A resource group may be a group of resources including one or more resource elements.

The rate match sequence e ^UCI _k may not be mapped to the sixth resource group. For example, the rate match sequence e ^UCI _k is not mapped to the second resource element of the same index pair as the index pair of the resource element of the first antenna port for the mapping of UL PTRS corresponding to the first antenna port The transmission diversity effect and the reduction effect of inter-layer interference are expected.

If UL PTRS is mapped to the first antenna port and UL PTRS is not mapped to the second antenna port, then the mapping of the rate match sequence e ^UCI _k at the second antenna port is the rate match sequence e at the first antenna port ^It may be identical to the ^UCI _k mapping.

  The first antenna port may correspond to the first layer and the second layer, at least in codebook based transmission. The second antenna port may correspond to the first layer and the second layer, at least in codebook based transmission. The first antenna port may correspond to the first layer, at least in non-codebook based transmission. The second antenna port may correspond to the second layer, at least in non-codebook based transmission.

For a first antenna port, a rate match sequence e ^UCI _k may be mapped at least across UL PTRSs corresponding to the first antenna port. For the first antenna port, the rate match sequence e ^UCI _k is the resource element of the first antenna port other than the resource element of the first antenna port to which the UL PTRS corresponding to the first antenna port is mapped. It may be mapped to part or all.

In the mapping of the rate match sequence e ^UCI _k , the index pairs of resource elements included in the fourth resource group may be different from any of the index pairs of resource elements included in the third resource group.

For the second antenna port, the rate match sequence e ^UCI _k may be mapped at least across the sixth resource group. For the second antenna port, the rate match sequence e ^UCI _k may be at least mapped to resource elements of the second antenna port other than the resource elements included in the sixth resource group.

The rate match sequence e ^UCI _k at least passes the resource element of the second antenna port that is the same index pair as the resource element of the first antenna port to which the UL PTRS corresponding to the first antenna port is mapped. It may be mapped. The rate match sequence e ^UCI _k may not be mapped at least to the resource element of the second antenna port identical to the index pair of the resource element included in the third resource group.

In the mapping of the rate match sequence e ^UCI _k , the index pairs of resource elements included in the fifth resource group may be different from any of the index pairs of resource elements included in the third resource group.

In the mapping of the rate match sequence e ^UCI _k , index pairs of resource elements included in the fifth resource group may be given based at least on the resource elements included in the third resource group.

In the mapping of the rate match sequence e ^UCI _k , the index pairs of all resource elements included in the fifth resource group may be identical to any of the index pairs of resource elements included in the fourth resource group.

Whether the rate match sequence e ^UCI _k is mapped at least across the sixth resource group for the second antenna port may be given for each type of UCI. Whether or not the rate match sequence e ^UCI _k is at least mapped to resource elements of the second antenna port other than the resource elements included in the sixth resource group for each second antenna port depends on the type of UCI. May be given to

Map at least a resource element of the second antenna port whose index pair is the same as a resource element of the first antenna port to which the UL PTRS to which the rate match sequence e ^UCI _k corresponds to the first antenna port is mapped It may be given for each type of UCI. Whether or not the rate match sequence e ^UCI _k is at least mapped to the resource element of the second antenna port identical to the index pair of the resource elements included in the third resource group may be given for each UCI type. Good.

In the mapping of the rate match sequence e ^UCI _k , whether the index pair of the resource element included in the fifth resource group is different from any of the index pair of the resource element included in the third resource group is determined for each UCI type. May be given to

Whether or not the index pair of resource elements included in the fifth resource group is based at least on the resource elements included in the third resource group in the mapping of the rate match sequence e ^UCI _k is given for each UCI type. It is also good.

In the mapping of the rate match sequence e ^UCI _k , it is determined whether the index pairs of all resource elements included in the fifth resource group are identical to any of the index pairs of resource elements included in the fourth resource group, It may be given for each type of UCI.

For the second antenna port, the rate match sequence e ^CSI1 _k for the first CSI may be mapped at least ^across the sixth resource group. For the second antenna port, the rate match sequence e ^CSI1 _k for the first CSI may be at least mapped to the resource elements of the second antenna port other than the resource elements included in the sixth resource group .

The rate match sequence e ^CSI1 _k for the first CSI is for the second antenna port that is the same index pair as the resource element of the first antenna port to which the UL PTRS corresponding to the first antenna port is mapped. The resource elements may be mapped at least over. The rate match sequence e ^CSI1 _k for the first CSI may not at least be mapped to the resource element of the second antenna port identical to the index pair of the resource element included in the third resource group.

In the mapping of the rate match sequence e ^CSI1 _k for the first CSI, the index pair of resource elements included in the fifth resource group is different from any of the index pairs of resource elements included in the third resource group It is also good.

In the mapping of the rate match sequence e ^CSI1 _k for the first CSI, index pairs of resource elements included in the fifth resource group may be given based at least on the resource elements included in the third resource group .

In the mapping of the rate match sequence e ^CSI1 _k for the first CSI, index pairs of all resource elements included in the fifth resource group are any of index pairs of resource elements included in the fourth resource group. It may be identical.

The rate match sequence e ^CSI1 _k for the first CSI is also referred to as the first CSI.

For the second antenna port, the rate match sequence e ^CSI2 _k for the second CSI may be at least mapped to some or all of the resource elements included in the sixth resource group.

The rate match sequence e ^CSI2 _k for the second CSI is for the second antenna port that is the same index pair as the resource element of the first antenna port to which the UL PTRS corresponding to the first antenna port is mapped. It may at least be mapped to some or all of the resource elements. The rate match sequence e ^CSI2 _k for the second CSI may be at least mapped to part or all of the resource elements of the second antenna port identical to the index pair of the resource elements included in the third resource group Good.

In the mapping of the rate match sequence e ^CSI2 _k for the second CSI, some or all of the index pairs of resource elements included in the fifth resource group are index pairs of resource elements included in the third resource group It may be identical to any of the above.

In the mapping of the rate match sequence e ^CSI2 _k for the second CSI, the fifth resource group may include at least the first resource element. The first resource element is a resource element of the second antenna port that is identical to any of the index pairs of resource elements included in the third resource group.

In the mapping of the rate match sequence e ^CSI2 _k for the second CSI, index pairs of resource elements included in the fifth resource group may be provided regardless of resource elements included in the third resource group .

In the mapping of the rate match sequence e ^CSI2 _k for the second CSI, some or all of the index pairs of resource elements included in the fifth resource group are index pairs of resource elements included in the fourth resource group It may be different from

The rate match sequence e ^CSI2 _k for the second CSI is also referred to as the second CSI.

For the second antenna port, the rate match sequence e ^{HARQ -ACK} _{k for} ^HARQ-ACK may be mapped at least across the sixth resource group. For the second antenna port, the rate match sequence e ^HARQ-ACK _{k for} ^HARQ-ACK is at least mapped to the resource element of the second antenna port other than the resource element included in the sixth resource group Good.

The rate match sequence e ^HARQ-ACK _{k for} ^HARQ-ACK is a second antenna port that is the same index pair as the resource element of the first antenna port to which the UL PTRS corresponding to the first antenna port is mapped. May be mapped at least across resource elements of. The rate match sequence e ^{HARQ -ACK} _{k for} ^HARQ-ACK may not be mapped at least to the resource element of the second antenna port identical to the index pair of the resource element included in the third resource group.

In the mapping of rate match sequence e ^HARQ-ACK _k for ^HARQ-ACK , the index pair of resource elements included in the fifth resource group is different from any of the index pairs of resource elements included in the third resource group May be

In the mapping of the rate match sequence e ^HARQ-ACK _k for ^HARQ-ACK , the index pair of resource elements included in the fifth resource group may be given based at least on the resource elements included in the third resource group Good.

In the mapping of rate match sequence e ^HARQ-ACK _k for ^HARQ-ACK , index pairs of all resource elements included in the fifth resource group are any of index pairs of resource elements included in the fourth resource group. It may be the same as heel.

The rate match sequence e ^HARQ-ACK _k for HARQ-ACK is also referred to as HARQ-ACK.

Whether or not the rate match sequence e ^UCI _k is mapped at least over the sixth resource group for the second antenna port is given based at least on the number of UCI bits KUCI mapped to the PUSCH It is also good. Whether the rate match sequence e ^HARQ-ACK _{k for} ^HARQ-ACK is mapped at least to the resource element of the second antenna port other than the resource element included in the sixth resource group for the second antenna port Whether the decision is made may be given based at least on the number of bits UCI of UCI mapped to the PUSCH.

Map at least a resource element of the second antenna port whose index pair is the same as a resource element of the first antenna port to which the UL PTRS to which the rate match sequence e ^UCI _k corresponds to the first antenna port is mapped It may be given for each type of UCI. Whether or not the rate match sequence e ^UCI _k is at least mapped to the resource element of the second antenna port identical to the index pair of the resource element included in the third resource group is the number of UCI bits mapped to the PUSCH It may be given based at least on KUCI.

In the mapping of the rate match sequence e ^UCI _k , whether or not the index pair of the resource element included in the fifth resource group is different from any of the index pair of the resource element included in the third resource group is mapped to PUSCH It may be given based at least on the number of UCI bits KUCI.

In the mapping of the rate match sequence e ^UCI _k , whether or not the index pair of the resource element included in the fifth resource group is at least based on the resource element included in the third resource group is a UCI bit mapped to the PUSCH It may be given based at least on the number KUCI.

In the mapping of the rate match sequence e ^UCI _k , it is determined whether the index pairs of all resource elements included in the fifth resource group are identical to any of the index pairs of resource elements included in the fourth resource group, It may be given based at least on the number of bits UCI of UCI mapped to PUSCH.

The rate match sequence e ^UCI _k may be mapped at least across the sixth resource group for the second antenna port if the UCI bit number KUCI mapped to the PUSCH satisfies the predetermined condition. The predetermined condition may be that the bit number KUCI of the UCI is 2 or less. If the number of UCI bits mapped to the PUSCH KUCI satisfies the predetermined condition, the rate match sequence e ^UCI _k is a second one other than the resource element included in the sixth resource group for the second antenna port. It may at least be mapped to a resource element of the antenna port.

If the UCI bit number KUCI mapped to the PUSCH satisfies the predetermined condition, the rate match sequence e ^UCI _k is a resource element of the first antenna port to which the UL PTRS corresponding to the first antenna port is mapped. The resource elements of the second antenna port that are the same index pair may be mapped at least across. If the UCI bit number KUCI mapped to the PUSCH satisfies the predetermined condition, the rate match sequence e ^UCI _k is a resource of the second antenna port identical to the index pair of the resource element included in the third resource group It does not have to be at least mapped to the element.

In the mapping of the rate match sequence e ^UCI _k , when the number of UCI bits mapped to the PUSCH satisfies the predetermined condition, the index pair of the resource element included in the fifth resource group is the third resource group It may be different from any of the included resource element index pairs.

In the mapping of the rate match sequence e ^UCI _k , when the number of UCI bits mapped to the PUSCH satisfies the predetermined condition, the index pair of the resource element included in the fifth resource group is the third resource group It may be provided based at least on the included resource elements.

In the mapping of the rate match sequence e ^UCI _k , when the number of UCI bits mapped to the PUSCH satisfies KUCI that satisfies the predetermined condition, the index pair of all resource elements included in the fifth resource group is the fourth resource It may be identical to any of the index pairs of resource elements included in the group.

If the number of UCI bits mapped to the PUSCH KUCI does not satisfy the predetermined condition, the rate match sequence e ^UCI _k is part of resource elements included in the sixth resource group or for the second antenna port. It may be at least mapped to all.

If the number of UCI bits mapped to the PUSCH KUCI does not satisfy the predetermined condition, the rate match sequence e ^UCI _k is a resource element of the first antenna port to which the UL PTRS corresponding to the first antenna port is mapped. At least some of the resource elements of the second antenna port that are the same as the index pair may be mapped. If the number UCI of bits of UCI mapped to PUSCH does not satisfy the predetermined condition, the rate match sequence e ^UCI _k is the same as the index pair of the resource element included in the third resource group in the second antenna port It may be mapped to part or all of resource elements.

When the number of UCI bits mapped to the PUSCH in the mapping of the rate match sequence e ^UCI _k does not satisfy the predetermined condition, some or all of the index pairs of resource elements included in the fifth resource group are It may be identical to any of the index pairs of resource elements included in the third resource group.

When the number of UCI bits mapped to the PUSCH in the mapping of the rate match sequence e ^UCI _k does not satisfy the predetermined condition, the fifth resource group may include at least the first resource element.

When the number of UCI bits mapped to the PUSCH in the mapping of the rate match sequence e ^UCI _k does not satisfy the predetermined condition, the index pair of resource elements included in the fifth resource group is the third resource group May be provided regardless of the resource elements included in.

In the mapping of the rate match sequence e ^UCI _k , when the number of UCI bits mapped to the PUSCH does not satisfy the predetermined condition, the resource elements included in the fifth resource group in the mapping of the rate match sequence e ^UCI _k A part or all of the index pairs of may be different from any of the index pairs of resource elements included in the fourth resource group.

The combined sequence g _k may be at least mapped to part or all of the sixth resource group.

  At least one of the index pairs of resource elements included in the second resource group may be identical to any one of the index pairs of resource elements included in the third resource group.

  The second resource group may include at least a first resource element.

The rate matching sequence e ^UCI _k are mapped to resource elements the rate matching sequence e ^UCI _k complex value modulation symbols generated from the means to be mapped to resource elements. The interleaving sequence g _k are mapped to a resource element, complex-valued modulation symbols generated from the interleaving sequence g _k is meant to be mapped to resource elements.

  Hereinafter, an example of composition of terminal unit 1 concerning one mode of this embodiment is explained.

FIG. 9 is a schematic block diagram showing the configuration of the terminal device 1 according to an aspect of the present embodiment. As illustrated, the terminal device 1 includes a wireless transmission / reception unit 10 and an upper layer processing unit 14. The wireless transmission / reception unit 10 is configured to include at least a part or all of the antenna unit 11, an RF (Radio Frequency) unit 12, and a baseband unit 13. The upper layer processing unit 14 includes at least a part of 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 is also referred to as a transmission unit, a reception unit, or a physical layer processing unit.

The upper layer processing unit 14 outputs, to the radio transmission / reception unit 10, uplink data (transport block) generated by a user operation or the like. The upper layer processing unit 14 performs processing of a MAC layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and an RRC layer.

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

  The radio resource control layer processing unit 16 included in the upper layer processing unit 14 performs the process of the RRC layer. The radio resource control layer processing unit 16 manages various setting information / parameters of its own device. The radio resource control layer processing unit 16 sets various setting information / parameters based on the signal of the upper layer received from the base station apparatus 3. That is, the radio resource control layer processing unit 16 sets various setting information / parameters based on information indicating various setting information / parameters received from the base station apparatus 3. The parameter may be an upper layer parameter.

  The wireless transmission / reception unit 10 performs physical layer processing such as modulation, demodulation, coding, and decoding. The wireless transmission and reception unit 10 separates, demodulates and decodes the received physical signal, and outputs the decoded information to the upper layer processing unit 14. The radio transmission / reception unit 10 generates a physical signal by modulating and encoding data and baseband signal generation (conversion to a time continuous signal), and transmits the physical signal to the base station device 3.

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

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

The baseband unit 13 performs Inverse Fast Fourier Transform (IFFT) on the data to generate an OFDM symbol, adds a CP to the generated OFDM symbol, generates a baseband digital signal, and generates a base. Convert band digital signals into analog signals. The baseband unit 13 outputs the converted analog signal to the RF unit 12.

  The RF unit 12 removes extra frequency components from the analog signal input from the baseband unit 13 using a low pass filter, up-converts the analog signal to a carrier frequency, and transmits it via the antenna unit 11 Do. Also, the RF unit 12 amplifies the power. Also, the RF unit 12 may have a function of controlling transmission power. The RF unit 12 is also referred to as a transmission power control unit.

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

  FIG. 10 is a schematic block diagram showing the configuration of the base station device 3 according to an aspect of the present embodiment. As illustrated, the base station device 3 is configured to include a wireless transmission / reception unit 30 and an upper layer processing unit 34. The wireless transmission and reception unit 30 includes an antenna unit 31, an RF unit 32, and a baseband unit 33. The upper layer processing unit 34 includes a medium access control layer processing unit 35 and a radio resource control layer processing unit 36. The wireless transmission / reception unit 30 is also referred to as a transmission unit, a reception unit, or a physical layer processing unit.

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

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

  The radio resource control layer processing unit 36 included in the upper layer processing unit 34 performs the process of the RRC layer. The radio resource control layer processing unit 36 generates downlink data (transport block), system information, RRC message, MAC CE, etc. arranged in the PDSCH, or acquires it from the upper node and outputs it to the radio transmission / reception unit 30. . Also, the radio resource control layer processing unit 36 manages various setting information / parameters of each of the terminal devices 1. The radio resource control layer processing unit 36 may set various setting information / parameters for each of the terminal devices 1 via the upper layer signal. That is, the radio resource control layer processing unit 36 transmits / broadcasts information indicating various setting information / parameters.

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

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

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

  (1) In order to achieve the above object, the embodiments of the present invention take the following measures. That is, a first aspect of the present invention is a terminal apparatus, which transmits an encoder for encoding one transport block and UCI, and the one transport block and the UCI in one PUSCH. A transmitting unit, wherein the one transport block is at least mapped to a first resource group of a first antenna port and a second resource group of a second antenna port, and UL PTRS is the first The UCI is mapped to a third resource group of antenna ports and is not mapped to any resource elements of the second antenna port, and the UCI is a fourth resource group of the first antenna port and the fourth resource group of the first antenna port. At least mapped to a fifth resource group of two antenna ports, The index pair of resource elements included in the group is different from any of the index pairs of resource elements included in the third resource group, and the index pair is a pair of subcarrier index of resource element and OFDM symbol index .

  (2) In the first aspect of the present invention, the second resource group at least includes a first resource element of the second antenna port, and the index pair of the first resource element is the This is the same as the index pair of resource elements included in the third resource group.

(3) Further, according to a second aspect of the present invention, there is provided a base station apparatus comprising: a receiving unit for receiving one PUSCH transmitted including one transport block and UCI; A decoding unit for decoding UCI, wherein the one transport block is at least mapped to a first resource group of a first antenna port and a second resource group of a second antenna port, and UL PTRS Are mapped to the third resource group of the first antenna port and are not mapped to any resource elements of the second antenna port, and the UCI is the fourth of the first antenna port. At least the fifth resource group of the second antenna port and the fifth resource group of the second antenna port, The index pair of resource elements included in the group is different from any of the index pairs of resource elements included in the third resource group, and the index pair is a pair of subcarrier index of resource element and OFDM symbol index .

  (4) In the second aspect of the present invention, the second resource group at least includes a first resource element of the second antenna port, and the index pair of the first resource element is the second resource group. This is the same as the index pair of resource elements included in the third resource group.

A program operating on the base station device 3 and the terminal device 1 according to the present invention causes a program (a computer to function) to control a central processing unit (CPU) or the like so as to realize the functions of the embodiments described above. Program). Then, the information handled by these devices is temporarily stored in RAM (Random Access Memory) at the time of processing, and then various ROMs such as Flash ROM (Read Only Memory) and HD are stored.
It is stored in D (Hard Disk Drive), read by the CPU as needed, and correction / writing is performed.

  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, a program for realizing the control function may be recorded in a computer readable recording medium, and the computer system may read and execute the program recorded in the recording medium.

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

  Furthermore, the “computer-readable recording medium” is one that holds a program dynamically for a short time, like a communication line in the case of transmitting a program via a network such as the Internet or a communication line such as a telephone line. In such a case, a volatile memory in a computer system serving as a server or a client may be included, which holds a program for a predetermined time. The program may be for realizing a part of the functions described above, or may be realized in combination with the program already recorded in the computer system.

  Moreover, the base station apparatus 3 in embodiment mentioned above can also be implement | achieved as an aggregate | assembly (apparatus group) comprised from several apparatus. Each of the devices forming the device group may include all or part of each function or each functional block of the base station device 3 according to the above-described embodiment. It is sufficient to have one function or each functional block of the base station apparatus 3 as an apparatus group. Moreover, the terminal device 1 in connection with the embodiment described above can also communicate with the base station device as an aggregate.

In addition, the base station device 3 in the above-described embodiment is an EUTRAN (Evolved Universal).
Terrestrial Radio Access Network) and / or NG-RAN (Next Gen RAN, NR RAN). Also, the base station device 3 in the above-described embodiment may have some 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 chip set. Each functional block of the terminal device 1 and the base station device 3 may be chiped individually, or a part or all of the functional blocks may be integrated and chipped. Further, the method of circuit integration is not limited to LSI's, and implementation using dedicated circuitry or general purpose processors is also possible. In the case where an integrated circuit technology comes out to replace LSI's as a result of the advancement of semiconductor technology, it is also possible to use an integrated circuit according to such technology.

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

  Although the embodiments of the present invention have been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes and the like within the scope of the present invention are also included. Furthermore, the present invention can be modified in various ways within the scope of the claims, and embodiments obtained by appropriately combining the technical means respectively disclosed in different embodiments are also included in the technical scope of the present invention. Be Moreover, it is an element described in each said embodiment, and the structure which substituted the elements which show the same effect is also contained.

1 (1A, 1B, 1C) Terminal device 3 base station device 10, 30 wireless transmission / reception unit 11, 31 antenna unit 12, 32 RF unit 13, 33 baseband unit 14, 34 upper layer processing unit 15, 35 medium access control layer Processing units 16 and 36 Radio resource control layer processing unit 3001 CRC generation unit 3002 Code block division unit 3003 LDPC encoding unit 3004 Bit selection unit 3005 Bit interleaving unit 3006 Code block combination unit

Claims (6)

An encoding unit that encodes one transport block and UCI;
A transmitter configured to transmit the one transport block and the UCI in one PUSCH;
The one transport block is at least mapped to a first resource group of a first antenna port and a second resource group of a second antenna port,
UL PTRS is mapped to the third resource group of the first antenna port and is not mapped to any resource element of the second antenna port,
The UCI is at least mapped to a fourth resource group of the first antenna port and a fifth resource group of the second antenna port,
The index pair of resource elements included in the fifth resource group is different from any of the index pairs of resource elements included in the third resource group,
The terminal device wherein the index pair is a pair of a subcarrier index of a resource element and an OFDM symbol index. The second resource group at least includes a first resource element of the second antenna port,
The terminal device according to claim 1, wherein the index pair of the first resource element is the same as the index pair of the resource element included in the third resource group. A receiver for receiving one PUSCH transmitted including one transport block and UCI;
The transport block, and a decoding unit that decodes the UCI;
The one transport block is at least mapped to a first resource group of a first antenna port and a second resource group of a second antenna port,
UL PTRS is mapped to the third resource group of the first antenna port and is not mapped to any resource element of the second antenna port,
The UCI is at least mapped to a fourth resource group of the first antenna port and a fifth resource group of the second antenna port,
The index pair of resource elements included in the fifth resource group is different from any of the index pairs of resource elements included in the third resource group,
The base station apparatus wherein the index pair is a pair of subcarrier index of resource element and OFDM symbol index. The second resource group at least includes a first resource element of the second antenna port,
The base station apparatus according to claim 3, wherein the index pair of the first resource element is the same as the index pair of the resource element included in the third resource group. A communication method used for a terminal device,
Encoding one transport block and UCI,
Transmitting the one transport block and the UCI on one PUSCH,
The one transport block is at least mapped to a first resource group of a first antenna port and a second resource group of a second antenna port,
UL PTRS is mapped to the third resource group of the first antenna port and is not mapped to any resource element of the second antenna port,
The UCI is at least mapped to a fourth resource group of the first antenna port and a fifth resource group of the second antenna port,
The index pair of resource elements included in the fifth resource group is different from any of the index pairs of resource elements included in the third resource group,
The communication method in which the index pair is a pair of a subcarrier index of a resource element and an OFDM symbol index. Receiving one PUSCH transmitted including one transport block and UCI;
And C. decoding the transport block and the UCI.
The one transport block is at least mapped to a first resource group of a first antenna port and a second resource group of a second antenna port,
UL PTRS is mapped to the third resource group of the first antenna port and is not mapped to any resource element of the second antenna port,
The UCI is at least mapped to a fourth resource group of the first antenna port and a fifth resource group of the second antenna port,
The index pair of resource elements included in the fifth resource group is different from any of the index pairs of resource elements included in the third resource group,
The communication method in which the index pair is a pair of a subcarrier index of a resource element and an OFDM symbol index.

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