KR20150089715A - Method and apparatus of adjusting uci coding rate in wireless communication system - Google Patents

Abstract

The present invention relates to a method for transmitting uplink control information (UCI) through a physical uplink shared channel (PUSCH), which comprises the steps of: calculating Q′_ACK representing the number of coded modulation symbols for hybrid automatic repeat request-acknowledgement (HARQ-ACK) information transmitted on a sub-frame for the PUSCH transmission, and Q′_RI representing the number of coded modulation symbols for rank indicator (RI) information transmitted on the sub-frame; channel-coding the HARQ-ACK information and the RI information, respectively, based on the calculated Q′_ACK and Q′_RI to allocate the information to elements of an interleaving matrix for channel interleaving; and mapping at least one among the HARQ-ACK information and the RI information to an area for the PUSCH based on the interleaving matrix to generate the PUSCH. According to the present invention, in consideration of the decreased DMRS mapping, UCI mapping can be more efficiently performed.

Description

[0001] The present invention relates to a method and an apparatus for adjusting a UCI coding rate in a wireless communication system,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to wireless communication, and more particularly, to a method and apparatus for adjusting a UCI coding rate in a wireless communication system.

There are various control information for smoothly supporting downlink and uplink transmissions in a wireless communication system. Of these, uplink control information includes scheduling request (SR), acknowledgment (ACK / NACK) for HARQ (Hybrid ARQ) A non-acknowledgment signal, a channel quality indicator (CQI), a precoding matrix indicator (PMI), a rank indicator (RI), and the like.

The uplink control information can generally be transmitted through a physical uplink control channel (PUCCH). However, if there is user data to be transmitted in the uplink, the uplink control information may be multiplexed together with the user data and transmitted through a physical uplink shared channel (PUSCH). In this case, the uplink control information may be mapped on the basis of a certain reference to peripheral resources of a Demodulation Reference Signal (DMRS) used for channel estimation for coherent demodulation of the uplink received signal, . This is because the uplink control information is relatively important information as compared with the user data and the reliability of the channel estimation is high in the surrounding resources of the DMRS.

Meanwhile, in recent years, overhead reduction schemes have been considered for improving the small cell, and in particular, a scheme for reducing the overhead of the DMRS for improving the spectral efficiency of the uplink has been considered. Accordingly, a coding rate and a transmission area change applied to the UL control information must be considered, and a new UL control information transmission method different from the conventional one is required.

SUMMARY OF THE INVENTION The present invention provides a method and apparatus for adjusting a UCI coding rate.

Another aspect of the present invention is to provide a method and apparatus for adjusting a coding rate applied to a UCI transmitted through a PUSCH.

It is another object of the present invention to provide a method and apparatus for adjusting a UCI coding rate for a non-multiple input multiple output (MIMO) application terminal.

Another aspect of the present invention is to provide HARQ-ACK information and RI information with different coding rates.

According to an aspect of the present invention, a terminal for transmitting uplink control information (UCI) through a Physical Uplink Shared Channel (PUSCH) is provided. The user terminal transmitted on _Q'ACK and the sub-frame, which is the number of HARQ-ACK (Hybrid Automatic Repeat Request -Acknowledgement) coded modulation symbols of the information (coded modulation symbol) that is transmitted on a subframe for the PUSCH transmission performing channel coding to the RI (Rank Indicator) information coding rate control block, based on the at least one of the _ACK and _Q'Q'RI for calculating at least one of the _RI Q'represents the number of coded modulation symbols according to said A channel coding unit for generating at least one of a vector sequence for HARQ-ACK information and a vector sequence for RI information, a vector sequence for HARQ-ACK information, and a vector sequence for RI information, And a channel interleaver for allocating the HARQ-ACK information and the RI, based on the interleaving matrix, And mapping the at least one of the beams to an area for the PUSCH to generate the PUSCH, wherein the coding rate adjustment block is configured to map the HARQ-ACK information to a Single Carrier-Frequency Division Multiple Access (SC-FDMA) ) calculating the _Q'ACK to be based on the variable x _ACK for controlling of symbols, and calculating a variable x with the _Q'RI based on the _RI for controlling the number of SC-FDMA symbols in which the RI information is mapped .

According to another aspect of the present invention, there is provided a method of transmitting uplink control information (UCI) performed by a UE through a Physical Uplink Shared Channel (PUSCH). The method _Q'ACK transmitted on the sub-frame and indicates the number of HARQ-ACK (Hybrid Automatic Repeat Request -Acknowledgement) coded modulation of the information symbols (coded modulation symbol) that is transmitted on a subframe for the PUSCH transmission calculating at least one of a _Q'RI indicating the number of the coded modulation symbols on the RI (Rank Indicator) information, the _ACK and Q'Q'performing channel coding based on at least one of _RI and the HARQ-ACK Comprising the steps of: generating at least one of a vector sequence for information and a vector sequence for the RI information; and at least one of a vector sequence for HARQ-ACK information and a vector sequence for the RI information as elements of an interleaving matrix for channel interleaving Allocating at least one of the HARQ-ACK information and the RI information to the PUSCH based on the interleaving matrix, Including but which map to the region for the _ACK Q'is calculated as SC-FDMA (Single Carrier-Frequency Division Multiple Access) based on the variable x _ACK for controlling the number of symbols in which the HARQ-ACK information mapped to the And Q ' _RI is calculated based on a variable x _RI for controlling the number of SC-FDMA symbols to which the RI information is mapped.

According to the present invention, UCI coding rate adjustment is performed in consideration of reduced DMRS mapping, so that UCI transmission can be performed more efficiently.

1 shows a wireless communication system to which the present invention is applied.
2 shows a schematic structure of a physical layer used in a wireless communication system to which the present invention is applied.
FIG. 3 shows a structure of an uplink / downlink subframe used in a wireless communication system to which the present invention is applied.
4 illustrates a PUSCH channel structure according to an exemplary embodiment of the present invention. 4 shows a PUSCH channel structure in a subframe structure in the case of a normal CP.
5 shows an example of a UL-SCH and UCI processing structure according to the present invention.
FIG. 6 shows an example of resource mapping to a PUSCH region of a subframe through a process as shown in FIG.
Figures 7-9 are examples of DMRS mapping for overhead reduction.
10 shows an example of a UL processing structure for one UL-SCH TB according to the present invention.
11 shows an example of HARQ-ACK information and RI information mapping in a PUSCH region of one subframe according to the method 1 of the present invention.
12 shows an example of HARQ-ACK information and RI information mapping in the PUSCH region of one subframe according to the method 2 of the present invention.
13 shows an example of HARQ-ACK information and RI information mapping in the PUSCH region of one subframe according to the method 3 of the present invention.
FIG. 14 shows an example of HARQ-ACK information and RI information mapping in a PUSCH region of one subframe according to the method 4 of the present invention.
FIG. 15 shows an example of a method of allocating (or mapping) RI information according to the presence / absence of HARQ-ACK information transmission according to the method 5 of the present invention.
16 is an example of RI information mapping in the PUSCH region of one subframe according to the method 5 of the present invention.
FIG. 17 is a diagram showing an example of a method of mapping HARQ-ACK information and RI information according to the method 6 of the present invention.
18 shows an example of HARQ-ACK information RI information mapping to a PUSCH region of one subframe according to the method 6 of the present invention.
FIG. 19 is an example of a flowchart showing a method of performing HARQ-ACK information RI information mapping in a PUSCH region of one subframe according to the present invention.
20 is an example of a block diagram illustrating a terminal according to the present invention.

Hereinafter, some embodiments will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present disclosure rather unclear.

In addition, the present invention will be described with respect to a wireless communication network. The work performed in the wireless communication network may be performed in a process of controlling a network and transmitting data by a system (e.g., a base station) Work can be done at a terminal connected to the network.

1 shows a wireless communication system to which the present invention is applied.

Referring to FIG. 1, a wireless communication system 10 is widely deployed to provide various communication services such as voice, packet data, and the like. The wireless communication system 10 includes at least one base station 11 (evolved-NodeB, eNB). Each base station 11 provides communication services to specific cells (15a, 15b, 15c). The cell may again be divided into multiple regions (referred to as sectors).

A user equipment (UE) 12 may be fixed or mobile and may be a mobile station (MS), a mobile terminal (MT), a user terminal (UT), a subscriber station (SS), a wireless device, (personal digital assistant), a wireless modem, a handheld device, and the like. The base station 11 may be referred to by other terms such as a base station (BS), a base transceiver system (BTS), an access point, a femto base station, a home node B, and a relay. Cells are meant to cover various coverage areas such as megacell, macrocell, microcell, picocell, and femtocell.

Hereinafter, downlink (DL) refers to communication from the base station 11 to the terminal 12, and uplink (UL) refers to communication from the terminal 12 to the base station 11. In the downlink, the transmitter may be part of the base station 11, and the receiver may be part of the terminal 12. In the uplink, the transmitter may be part of the terminal 12, and the receiver may be part of the base station 11. There are no restrictions on multiple access schemes applied to wireless communication systems. (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier-FDMA , OFDM-CDMA, and the like. A TDD (Time Division Duplex) scheme in which uplink and downlink transmissions are transmitted using different time periods, or an FDD (Frequency Division Duplex) scheme in which they are transmitted using different frequencies can be used.

2 shows a schematic structure of a physical layer used in a wireless communication system to which the present invention is applied.

Referring to FIG. 2, one radio frame includes ten subframes, and one subframe includes two consecutive slots.

There are several physical channels used in the physical layer. As a downlink physical channel, a Physical Downlink Control Channel (PDCCH) informs a terminal of resource allocation of a paging channel (PCH), a downlink shared channel (DL-SCH), and Hybrid Automatic Repeat Request (HARQ) information related to a DL-SCH. The PDCCH may carry an uplink grant informing the UE of the resource allocation of the uplink transmission. A DL-SCH is mapped to a PDSCH (Physical Downlink Shared Channel). The Physical Control Format Indicator Channel (PCFICH) informs the UE of the number of OFDM symbols used for PDCCHs and is transmitted every subframe. The Physical Hybrid ARQ Indicator Channel (PHICH) is a downlink channel that carries an HARQ (Hybrid Automatic Repeat reQuest) ACK (Acknowledgment) / NACK (Non-acknowledgment) signal, which is a response of an uplink transmission. The HARQ ACK / NACK signal may be referred to as an HARQ-ACK signal.

As a physical uplink channel (PUCCH), a physical uplink control channel (PUCCH) includes HARQ-ACK, a response of downlink transmission, channel status information (CSI) indicating a downlink channel status, a precoding matrix index (PTI), a precoding type indicator (PTI), a rank indicator (RI), and the like. The Physical Uplink Shared Channel (PUSCH) carries an Uplink Shared Channel (UL-SCH). A Physical Random Access Channel (PRACH) carries a random access preamble.

The CQI provides information on the link adaptive parameters that the UE can support for a given time. The CQI may indicate a data rate that can be supported by the downlink channel in consideration of the characteristics of the terminal receiver and the signal to interference plus noise ratio (SINR). The base station can determine the modulation (QPSK, 16-QAM, 64-QAM, etc.) and the coding rate to be applied to the downlink channel using the CQI. The CQI can be generated in several ways. For example, a channel state can be directly quantized and fed back, a signal-to-interference plus noise ratio (SINR) can be calculated and fed back, and a MCS (Modulation Coding Scheme) have. When the CQI is generated based on the MCS, the MCS includes the modulation scheme, the coding scheme, the coding rate, and the like.

The PMI provides information on the precoding matrix in the codebook-based precoding. PMI is associated with multiple-input multiple-output (MIMO). The feedback of PMI in MIMO is called closed loop MIMO (CL MIMO).

The RI is information on a rank recommended by the UE (i.e., the number of layers). That is, RI represents the number of independent streams used for spatial multiplexing. The RI is fed back only when the terminal operates in the MIMO mode using spatial multiplexing. RI is always associated with one or more CQI feedback. That is, the feedback CQI is calculated assuming a specific RI value. Since the rank of the channel generally changes slower than the CQI, the RI is fed back a number of times less than the CQI. The RI transmission period may be a multiple of the CQI / PMI transmission period. RI is given for the entire system band and frequency selective RI feedback is not supported.

Meanwhile, the uplink data transmitted on the PUSCH may be a transport block that is a data block for a UL-SCH transmitted during a TTI (Transmission Time Interval). The transport block may include user data. Alternatively, the uplink data may be multiplexed data. The multiplexed data may be a multiplexed transport block for UL-SCH and UL control information. That is, if there is user data to be transmitted in the uplink, the uplink control information may be multiplexed together with the user data and transmitted through the PUSCH.

FIG. 3 shows a structure of an uplink / downlink subframe used in a wireless communication system to which the present invention is applied.

Referring to FIG. 3, in the case of a wireless system using Orthogonal Frequency Division Multiple Access (OFDMA) in the downlink, the symbol may be an Orthogonal Frequency Division Multiplexing (OFDM) symbol. On the other hand, in a radio system using a single carrier transmission scheme based on a Discrete Fourier Transform-Spread OFDM (DFTS-OFDM) scheme in the uplink, the symbol may be a DFTS-OFDM symbol. The single carrier transmission scheme based on DFTS-OFDM can be called SC-FDMA (Single Carrier Frequency Division Multiple Access), and the DFTS-OFDM symbol can be called SC-FDMA symbol.

On the other hand, the representation of the symbol period of the time domain is not limited by the multiple access scheme or the name. For example, in a time domain, a plurality of symbols may be a single-carrier-frequency division multiple access (SC-FDMA) symbol, a symbol period, etc. in addition to an OFDM symbol.

The number of OFDM symbols or SC-FDMA symbols included in one slot may vary according to the length of CP (Cyclic Prefix). For example, one slot may include seven symbols in the case of a normal CP, and one slot may include six symbols in the case of an extended CP.

One slot includes a plurality of subcarriers in the frequency domain and includes seven OFDM symbols or SC-FDMA symbols in the time domain. A resource block (RB) is a resource allocation unit. If a resource block includes 12 subcarriers in the frequency domain, one resource block may include 7 * 12 resource elements (REs). The resource block may be referred to as a PRB (Physical Resource Block).

The resource element represents the smallest frequency-time unit to which the modulation symbol of the data channel or the modulation symbol of the control channel is mapped. If there are M subcarriers on one OFDM symbol and one slot includes N OFDM symbols, one slot includes M * N resource elements. Similarly, if there are M subcarriers on one SC-FDMA symbol and one slot includes N SC-FDMA symbols, one slot includes M * N resource elements.

4 illustrates a PUSCH channel structure according to an exemplary embodiment of the present invention. 4 shows a PUSCH channel structure in a subframe structure in the case of a normal CP.

Referring to FIG. 4, one subframe includes two consecutive slots. Two consecutive slots may be referred to as even and odd slots in order (starting from zero). In case of a normal CP, one slot includes 7 SC-FDMA symbols. That is, one subframe includes 14 SC-FDMA symbols. The 7 SC-FDMA symbols of each slot can be indexed from 0 to 6 symbols. In this case, a Demodulation Reference Signal (DMRS) can be transmitted through SC-FDMA symbols having symbol indexes of even-numbered slots and odd-numbered slots. The DMRS is used for channel estimation for coherent demodulation of the uplink received signal. The uplink data can be transmitted through the remaining SC-FDMA symbols except for the SC-FDMA symbol through which the DMRS is transmitted. Resource elements (REs) of M _PUSCH * N ^RB _sc are used for PUSCH transmission for each SC-FDMA symbol. Where M _PUSCH denotes the number of resource blocks (RBs) allocated for PUSCH transmission, and N ^RB _sc denotes a resource block size in the frequency domain and is expressed by the number of sub-carriers. On the other hand, the last SC-FDMA symbol (symbol index 6 in the odd slot) of the subframe may be used for SRS (Sounding Reference Signal) transmission in some cases. The DMRS is used for uplink channel estimation for coherent demodulation of uplink physical channels (PUSCH or PUCCH), and is transmitted in the same frequency band as the corresponding physical channel, whereas SRS is used for the uplink channel quality The uplink signal is transmitted in the uplink. For example, the SRS may be transmitted at a periodic interval of two subframes in a short time, or in a subframe of 16 long ones.

5 shows an example of a UL-SCH and UCI processing structure according to the present invention. Data can arrive at the coding unit in the form of a maximum of two transport blocks for every TTI, and a coding step as shown in FIG. 5 can be performed for each transport block. The coding unit may be part of the terminal.

Referring to FIG. 5, data bits a ₀ , a ₁ , ..., a _{A -1} are given in the form of one transport block for each TTI. First, the data bits a _0, a _1, ..., s (Cyclic Redundancy Check) CRC having a length L in a _{A -1} parity bits _{p 0, p 1, ...,} p L -1 is added , CRC additional bits b ₀ , b ₁ , ..., b _{B -1} are generated (S500). Here, subscripts B, A, and L have the relationship of B = A + L. The relation between a _k and b _k can be expressed as follows.

CRC portion bits _{b 0, b 1, ...,} b B -1 of the code block is broken down into (code block) unit, a code block CRC parity bits are re-added (S510). The bit sequence output after code block segmentation is called c _r0 , c _r1 , ..., c _{r ( Kr -1)} . Here, when the total number of code blocks is C, r is a code block number and K _r is a number of bits for a code block number r.

로 나타내며, D_r은 출력 스트림당 인코딩된 비트들의 갯수, i는 인코더 출력 비트 스트림의 인덱스이다.The bit sequence for a given code block is channel coded (S520). The encoded bits

D _r is the number of encoded bits per output stream, and i is the index of the encoder output bit stream.

The encoded bits to generate a rate matching (matching rate) is carried out (S530), the code block concatenation (concatenation) is performed (S540), the bit sequence _{f 0, f 1, ...,} f G -1. The rate matching means that the amount of data to be transmitted is matched with the maximum transmission amount of the actual channel for each transmission unit time, for example, TTI. Where G denotes the total number of encoded bits used for transmission except for the bits used for control information transmission when the control information is multiplexed on the PUSCH.

On the other hand, control information (uplink control information) can be multiplexed with data (uplink data). The data and control information may use different coding rates by assigning different numbers of coded symbols for the transmission. The control information (control data) arrives at the coding unit in the form of CQI / PMI (CQI and / or PMI), HARQ-ACK and RI and independent channel coding is performed for each of CQI / PMI, HARQ- .

이 생성된다(S550). 여기서 N_L은 해당 전송 블록이 맵핑되는 레이어의 수이다. O ₀ , o ₁ , ..., o _{o -1} (subscript o is the number of bits of CQI / PMI) with respect to CQI / PMI is channel-

(S550). Where N _L is the number of layers to which the transport block is mapped.

는 채널 코딩이 수행되어 벡터 시퀀스

이 생성된다(S560).

(여기서 i=0,...Q´_RI-1)는 길이 (Q_m·N_L)의 열(column) 벡터들이다. 그리고 Q´_RI=Q_RI/Q_m이다. Q_RI는 모든 인코딩된 RI 블록들을 위한 코딩된 비트들의 전체 수를 나타낸다. Q_m은 PUSCH의 변조 오더(modulation order)를 나타낸다. 예를 들어, Q_m은 QPSK의 경우 2, 16QAM의 경우 4, 64QAM의 경우 6일 수 있다(Q_m is equal to 2 for QPSK, 4 for 16QAM, 6 for 64QAM).About RI

Channel coding is performed so that the vector sequence < RTI ID = 0.0 >

(S560).

(Where _{i = 0, ... Q'RI -1} ) is the length (Q _m · _L N) of the column (column) are vectors. And Q ' _RI = Q _RI / Q _m . Q _RI represents the total number of coded bits for all encoded RI blocks. Q _m represents the modulation order of the PUSCH. For example, Q _m may be 2 for QPSK, 4 for 16 QAM, or 6 for 64 QAM (Q _m is equal to 2 for QPSK, 4 for 16 QAM, and 6 for 64 QAM).

는 채널 코딩이 수행되어 벡터 시퀀스

이 생성된다(S570).

(여기서 i=0,...Q´_ACK-1)는 길이 (Q_m·N_L)의 열(column) 벡터들이다. 그리고 Q´_ACK=Q_ACK/Q_m이다. Q_ACK는 모든 인코딩된 HARQ-ACK 블록들을 위한 코딩된 비트들의 전체 수를 나타낸다.Similarly, regarding HARQ-ACK

Channel coding is performed so that the vector sequence < RTI ID = 0.0 >

(S570).

(Where i = 0, ... Q ' _ACK -1) are column vectors of length (Q _m N _L ). And Q ' _ACK = Q _ACK / Q _m . Q _ACK represents the total number of coded bits for all encoded HARQ-ACK blocks.

는 다중화된 벡터 시퀀스

로 다중화된다(S580). 여기서 H=(G+N_L·Q_CQI)이고, H´=H/(N_L·Q_m)이다. H는 해당 전송 블록의 UL-SCH 데이터(상향링크 데이터) 및 CQI/PMI 정보를 위하여 할당된 코딩된(coded) 비트들의 전체 수를 나타낸다.

(여기서 i=0,...,H´-1)는 길이 (Q_m·N_L)의 열(column) 벡터들이다.Bit sequences of the _first and the CQI / PMI _- the bit sequences of the generated data _{f 0, f 1, ...,} f G

Lt; RTI ID = 0.0 >

(S580). Where H = (G + N _L Q _CQI ) and H '= H / (N _L Q _m ). H denotes the total number of coded bits allocated for UL-SCH data (uplink data) and CQI / PMI information of the transport block.

(Where i = 0, ..., H'- 1) is the length (Q _m · _L N) of the column (column) are vectors.

가 배치되고, 이후로 데이터의 비트 시퀀스 f₀, f₁,..., f_{G -1}가 배치될 수 있다. 즉, H=G+Q_CQI일때, [

]=[

, f₀, f₁,..., f_{G -1}]와 같이 구성될 수 있다.When multiplexing, first the bit sequence of CQI / PMI

And then the bit sequence f ₀ , f ₁ , ..., f _{G -1} of the data can be arranged. That is, when H = G + Q _CQI ,

] = [

, f ₀ , f ₁ , ..., f _{G -1} ].

는 채널 인터리버(channel interleaver)에 의해 변조 시퀀스

로 맵핑된다(S590). 또한, RI 및/또는 HARQ-ACK의 벡터 시퀀스는 채널 인터리버에 의해 변조 시퀀스

로 맵핑될 수 있다. 여기서, h_i는 성상(constellation)상의 변조 심벌이다. 변조 시퀀스

의 각 변조 심벌은 PUSCH를 위한 자원 요소(RE)로 맵핑된다. Multiplexed vector sequence

A channel interleaver < RTI ID = 0.0 >

(S590). In addition, the vector sequence of RI and / or HARQ-ACK is modulated by the channel interleaver in the modulation sequence

Lt; / RTI > Here, h _i is a modulation symbol on the constellation. Modulation sequence

Is mapped to a resource element (RE) for the PUSCH.

Meanwhile, in S560 and S570, channel coding of RI and HARQ-ACK, respectively, must be determined first for RI and HARQ-ACK. Q 'represents the number of coded modulation symbols per layer. The coding unit can determine Q 'based on a Modulation Coding Scheme (MCS) level applied to the PUSCH, and can adjust a coding rate for RI and HARQ-ACK based on the Q'.

If only one transport block is transmitted on the PUSCH (i.e., in the case of a single layer transmission), Q 'can be calculated as shown in Equation 2 below.

Where O is the number of RI bits or HARQ-ACK bits. M ^PUSCH _SC is the bandwidth scheduled for PUSCH transmission in the current subframe for the transport block, expressed as the number of subcarriers. N ^{PUSCH - initial} _Symb is the number of SC-FDMA symbols per subframe for the initial PUSCH transmission for the same transport block. N ^{PUSCH -initial} _Symb can be calculated as Equation (3).

Here, N _SRS has a value of 1 or 0. For example, if the UE transmits a PUSCH and an SRS in the same subframe for initial transmission, or if a PUSCH resource allocation for an initial transmission is a cell-specific SRS subframe and a bandwidth configuration, specific SRS subframe, or if the subframe for initial transmission is a UE-specific Type-1 SRS subframe, or if the subframe for initial transmission is a UE- N _SRS may be 1 if multiple Timing Advance Groups (TAGs) are configured and N _SRS may be 0 in the remaining cases.

In Equation (2), M ^{PUSCH - initial} _sc is the number of subcarriers for the initial PUSCH transmission for the same transport block, C is the number of code blocks, and K _r is the number of bits for the code block number r .

M ^{PUSCH - initial} _sc , C, and K _r may be obtained from the initial PDCCH (or EPDCCH (enhanced-PDCCH)) for the same transport block. If there is no initial PDCCH (or EDPCCH) of the downlink control information (DCI) format 0 for the same transport block, M ^{PUSCH - initial} _sc , C, and K _r may be determined according to: For example, M ^{PUSCH - initial} _sc , C, and K _r are the most recent semi-persistent scheduling assigned PDCCH (or EPDCCH) when the same transport block is semi-persistent scheduled. ). ≪ / RTI > In another example, M ^{PUSCH - initial} _sc , C, and K _r may be determined from the random access response for the same transport block when the PUSCH is initiated by a random access response grant. The β ^PUSCH _offset indicates the offset value and can be set through RRC (Radio Resource Control) signaling.

The bit sequence generated after the channel interleaving is subjected to procedures such as scrambling, modulation, code-to-layer mapping and precoding, and then resource mapping to the PUSCH region mapping.

FIG. 6 shows an example of resource mapping to a PUSCH region of a subframe through a process as shown in FIG.

The multiplexing method in the PUSCH region may differ depending on the type of uplink control information. As shown in FIG. 6, in the PUSCH area of the subframe, the DMRS is allocated to some SC-FDMA symbols in the first slot (even slot) and the second slot (odd slot). As described above, the DMRS is a reference signal used for demodulating uplink data and uplink control information transmitted in the PUSCH region. FIG. 6 shows an example in which the DMRS is mapped to SC-FDMA symbols which are symbol index 3 in even-numbered slots and odd-numbered slots.

Among the uplink control information, the CQI / PMI information may be mapped from the first symbol of the subframe to the usable last symbol for one subcarrier, and may then be pumped to the next subcarrier in the frequency domain. That is, the CQI / PMI information can be mapped from the first symbol to the last symbol of the subframe except for the symbol to which the DMRS is mapped. The subcarriers may be sequentially indexed in subcarriers from top to bottom. In this case, the CQI / PMI information can be mapped from the smallest subcarrier index of the corresponding PUSCH region. The CQI / PMI information is multiplexed with the UL-SCH data and mapped to the PUSCH area. If the CQI / PMI information is allocated with the UL-SCH data in the PUSCH region, rate matching may be used depending on the presence of another UCI (e.g., RI information).

Of the uplink control information, HARQ-ACK information is very important for downlink HARQ operation and can be mapped to SC-FDMA symbols of symbol indexes 2 and 4 of even and odd slot adjacent to the symbols to which the DMRS is mapped have. In this case, the HARQ-ACK information can be mapped from a subcarrier corresponding to the largest subcarrier index of the corresponding symbol. With this allocation method, HARQ-ACK information can utilize the best channel estimation result. The HARQ-ACK information may be mapped to a symbol adjacent to the symbol to which the DMRS is mapped after puncturing the data, i.e., the UL-SCH data.

Among the uplink control information, the RI information may be mapped to SC-FDMA symbols, which are symbol indexes 1 and 5 of even-numbered slots and odd-numbered slots adjacent to the symbol to which the HARQ-ACK is mapped. In this case, the HARQ-ACK information can be mapped from a subcarrier corresponding to a largest subcarrier index of the corresponding symbol (the subcarrier of the lowest PUSCH region).

Meanwhile, in recent years, an overhead reduction scheme has been considered, and in particular, a scheme for reducing the overhead of DMRS for improving the spectral efficiency of the uplink has been considered. There are various ways to reduce the overhead of the DMRS. For example, there may be DMRS mapping methods as follows.

Figures 7-9 are examples of DMRS mapping for overhead reduction.

For example, FIG. 7 shows a case where only one SC-FDMA symbol is used in one subframe and PRB pair for DMRS mapping. For example, when a normal CP is used, the DMRS can be mapped only to the SC-FDMA symbol, which is the symbol index 3 of the even slot. If the extended CP is used, the DMRS is mapped only to the SC- . That is, the DMRS may not be mapped to the odd-numbered slot. However, as an example, the DMRS may be mapped to odd-numbered slots rather than to even-numbered slots.

As another example, FIG. 8 shows a case where the DMRS mapping is changed according to the PRB index in one subframe. For example, the DMRS may be mapped to only one symbol of an even-numbered slot for an even-numbered index PRB, and may be mapped to only one symbol of an odd-numbered slot for a PRB of an odd index. For example, when the normal CP is used, the DMRS can be mapped only to the SC-FDMA symbol which is the symbol index 3 of the even-numbered slot for the even-numbered index PRB, FDMA symbols. For example, if the extended CP is used, the DMRS can be mapped only to the SC-FDMA symbol which is the symbol index 2 of the even-numbered slot for the even-numbered index PRB, and to the SC- FDMA symbols.

As another example, FIG. 9 shows that two SC-FDMA symbols are used in one subframe and a pair of PRBs, but DMRS mapping can be performed using a smaller number of subcarriers. Subcarrier indices ranging from # 0 to # 11 can be assigned from top to bottom for the subcarriers in one PRB. In this case, for example, when a normal CP is used, the DMRS is mapped to a symbol which is a symbol index 3 of both the even slot and the odd slot in the time domain, and is mapped only to subcarriers of an even (or odd) subcarrier index in the frequency domain . Also, for example, when an extended CP is used, the DMRS is mapped to symbols of symbol index 2 in both the even slot and the odd slot in the time domain, but can be mapped only to subcarriers of the even (or odd) subcarrier index in the frequency domain have.

DMRS mapping according to one example (Fig. 7) and the other example (Fig. 8) will be referred to as reduced DMRS pattern 1, and DMRS mapping according to another example (Fig. 9) DMRS pattern 2 "

When considering such reduced DMRS patterns, a new UCI transmission method may be needed. A new UCI coding rate adjustment method may be needed for this. A new UCI mapping and transmission method considering the DMRS mapping pattern should be provided to ensure the performance on the wireless link such as the bloc error rate (BLER) performance of the UCI.

The present invention proposes a new UCI coding rate adjustment method considering the above considerations. Specifically, the present invention proposes a method of adjusting the coding rate of HARQ-ACK and RI in UCI.

The UCI coding rate adjustment method according to the present invention can be applied to a terminal (i.e., a single layer supporting terminal) that performs PUSCH transmission based on non-MIMO, for example.

10 shows an example of a UL processing structure for one UL-SCH TB according to the present invention.

Referring to FIG. 10, when the UCI bits and size are determined and the PUSCH is transmitted in the current subframe, the UCI information to be transmitted in the corresponding subframe must be transmitted on the PUSCH. First, HARQ-ACK information and RI information are channel-coded according to a specific coding rate, and input to a channel interleaver in the form of a vector sequence related to HARQ-ACK information and a vector sequence related to RI information. Also, the uplink data and the CQI / PMI information are input to the channel interleaver in the form of a channel sequence, a multiplexed vector sequence, and the like. The channel interleaver generates a bit sequence based on the vector sequence related to the ARQ-ACK information, the vector sequence related to the RI information, and the multiplexed vector sequence. Thereafter, the bits related to the generated bit sequence are subjected to a procedure such as scrambling, modulation, CW-to-layer mapping, and precoding, and then the resources are mapped to the PUSCH region mapping, and finally transmitted as an SC-FDMA signal.

The channel interleaver 1000 then determines the HARQ-ACK information mapping method and the RI information mapping method, and controls the HARQ-ACK information and the RI information to be mapped to specific positions of the PUSCH area in consideration of the reduced DMRS mapping . For example, the channel interleaver may control the HARQ-ACK information and the RI information to be mapped to the neighboring SC-FDMA symbols of the SC-FDMA symbol to which the reduced DMRS is mapped according to various methods.

및

의 벡터 시퀀스 형태로 재배열된다. 그리고 채널 코딩된 상향링크 데이터와 채널 코딩된 CQI/PMI가 다중화된 벡터 시퀀스인

과 함께 채널 인터리버의 입력으로 들어간다. 다음 수학식 4는 채널 인터리버에서 사용되는 행렬(matrix) 구조이다.More specifically, the HARQ-ACK information and the RI information are subjected to channel coding

And

Lt; / RTI > The channel-coded uplink data and the channel-coded CQI / PMI are multiplexed into a vector sequence

And enters the input of the channel interleaver. Equation (4) is a matrix structure used in a channel interleaver.

Wherein, if in one sub-frame of the uplink cells that are a number of UL-SCH TB than one transmission, each element of the Equation (4) may have the form of a matrix having a (Q _m · N _L) row (row) . Otherwise, when one UL-SCH TB is transmitted, each element has the form of a matrix having Q _m rows. Hereinafter, the matrix of Equation (4) may be referred to as an interleaving matrix.

The number of columns of the interleaving matrix is defined as C _mux and is numbered from 0 to 1, 2, ..., C _mux -1 from left to right. Where C _mux = N ^PUSCH _symb . N ^PUSCH _symb represents the number of SC-FDMA symbols in the subframe in which the current PUSCH is transmitted.

On the other hand, the number of the line (row) of the interleaved matrix is defined as _R'mux, is numbered as the lower (bottom) on the upper side (top) to 0,1,2, ..., _R'mux -1. _Rmux, which represents the total number of coded bits that are first mapped to one codeword, is defined as follows. R _mux = (H ' _{t ot al} · Q _m · N _L ) / C _mux . Here, H ' _total represents the number of modulation symbols per layer in the corresponding subframe, and H' _total = H '+ Q' _RI . That is, H ' _total is the sum of the number of modulation symbols per layer of uplink data and CQI / PMI and the number of modulation symbols per layer of RI. And a _{R'mux = R mux / (Q} m · N L). That is, the number of coded bits corresponding to R _mux is _divided by Q _m · N _L and numbered.

는 (Q_m·N_L)행을 가지는 세트(set)이고, 이는 상기 입력 벡터 시퀀스들인

,

및

과 동일한 길이를 가지는 열 벡터로 볼 수 있으므로, 상기 입력값들은 상기 각 요소에 바로 대입이 가능하다.Thus, each element in the interleaving matrix

Is a set having (Q _m N _L ) rows, which are the input vector sequences < RTI ID = 0.0 >

,

And

And the input values can be directly substituted into the respective elements.

가 할당된다. 이 경우 RI 정보에 관한 벡터 시퀀스는 상기 인터리빙 행렬의 가장 높은 인덱스의 행(즉, 마지막 행)부터 위쪽으로(upwards) 지정된 열(column)들 상에서 할당된다. The assignment (or assignment) of each of the input values to the interleaving matrix may be performed, for example, as follows. First, a vector sequence for RI information

. In this case, the vector sequence for RI information is allocated on designated columns upwards from the row of the highest index (i.e., the last row) of the interleaving matrix.

가 할당된다. 상기 상향링크 데이터와 CQI/PMI에 관한 다중화된 벡터 시퀀스는 첫 번째 행에서 시작하여, 인덱스 0의 열부터 C_{mux -1}의 열까지 순차적으로 할당된다. And a multiplexed vector sequence related to CQI / PMI is added to the elements to which the vector sequence related to the RI information is not allocated.

. The multiplexed vector sequence for the uplink data and the CQI / PMI starts sequentially from the first row to the column of index 0 to the column of C _{mux -1} .

는 상기 인터리빙 행렬의 가장 높은 인덱스의 행(즉, 마지막 행)부터 위쪽으로(upwards) 지정된 열(column)들 상에서 할당된다. 여기서 상기 HARQ-ACK 정보에 관한 벡터 시퀀스를 위하여 지정되는 열들은 상기 RI 정보에 관한 벡터 시퀀스를 위하여 지정되는 열들과 다를 수 있다. 상기 HARQ-ACK 정보에 관한 벡터 시퀀스는 상기 다중화된 시퀀스가 할당된 요소들(단, RI 정보에 관한 벡터 시퀀스가 할당된 요소들은 제외)에 겹쳐써(overwite)질 수 있다. 즉, HARQ-ACK 정보에 관한 벡터 시퀀스는 상기 다중화된 벡터 시퀀스를 펑처링하여 할당될 수 있다.
The vector sequence for HARQ-ACK information

Are assigned on designated columns upwards from the row of the highest index (i.e., the last row) of the interleaving matrix. Here, the columns designated for the vector sequence related to the HARQ-ACK information may be different from the columns designated for the vector sequence related to the RI information. The vector sequence related to the HARQ-ACK information may be overwritten with the elements to which the multiplexed sequence is allocated (except for the elements to which the vector sequence related to the RI information is allocated). That is, the vector sequence related to the HARQ-ACK information may be allocated by puncturing the multiplexed vector sequence.

On the other hand, the _ACK and _Q'Q'RI which is the number of the modulation symbols per layer coding (coded modulation symbols) to be used in the present invention, the HARQ-ACK information, and to each of the channel coding for the RI information. In this case, the coding rate adjustment blocks 1010 and 1020 according to the present invention can generate the Q ' _ACK and the Q' _RI , respectively.

_Q'ACK and _Q'RI according to the present invention include, for example, can be represented as shown in Equation 5, and 6.

In the present invention, are independent of each other, such as the β ^HARQ-ACK using the _offset and the _offset β ^RI, it is possible to produce a _Q'ACK and _Q'RI, respectively, the original coding rate for each of HARQ-ACK information and the RI information It can also be applied. In the present invention, in place of 4 · M ^PUSCH _sc indicating the maximum number of allocatable coded modulation symbols in the original, Equation (4) In the use of x _ACK · M ^PUSCH _sc, and Equation 5 x _RI · M ^PUSCH _sc , the number of coded modulation symbols that can be allocated for each of the HARQ-ACK information and the RI information can be controlled or reduced by using values of x _ACK and x _RI that are larger than 0 and smaller than or equal to 4 . This can be done by using fewer SC-FDMA symbols for HARQ-ACK information and RI information. That is, SC in one subframe based on the x _ACK to which the RI information is mapped in one sub-frame may be the number of SC-FDMA symbols control which is mapped that the HARQ-ACK information, based on the x _RI The number of FDMA symbols can be controlled. For example, the x _ACK and x _RI may have a fixed value (for example, 2) and may be indicated to the UE through RRC signaling. Also, x _ACK and x _RI may be represented by one variable x.

The 4-M ^PUSCH _sc indicating the maximum number of coded modulation symbols that can be allocated in Equation (2) uses four SC-FDMA symbols for HARQ-ACK information and RI information in one subframe, And using two SC-FDMA symbols per slot). However, according to the reduced DMRS pattern, only one SC-FDMA symbol in one subframe may be used for DMRS. In addition, the channel environment to which overhead reduction can be applied can be assumed to be a very good channel environment with high SNR and low mobility (with about 7% spectral efficiency gain). Therefore, it is expected that the necessity of a coding rate lower than the existing coding rate (i.e., the necessity of a larger Q 'value) is expected to be small. Hence, through the equations 5 and 6, the coding rate for HARQ- Respectively, and can be mapped to the PUSCH area based on this.

In the present invention, it is assumed that less than four SC-FDMA symbols are allocated for HARQ-ACK information and RI information, and less SC-FDMA symbols are allocated. For example, in the present invention, HARQ information and RI information are mapped to SC-FDMA symbols around which a reduced DMRS is mapped, and mapped to x- _ACK and x- _RI SC-FDMA symbols, respectively. In the following description, it is assumed that x _ACK and x _RI are two. In addition, the description will be made based on the case where non-MIMO (i.e., single layer) PUSCH transmission is configured, i.e., N _L = 1. If the x _ACK and x _RI values are odd (e.g., 1 or 3), the nearest SC-FDMA symbol of the SC-FDMA symbol to which the DMRS is mapped and the low- HARQ-ACK information and RI information can be mapped based on an SC-FDMA symbol. For example, if the symbol index to which the DMRS is mapped is 2, the HARQ-ACK information can sequentially use the symbols of the indices 1- >3-> 0.

Method 1

In the method 1, the neighboring SC-FDMA symbols are allocated with a reduced DMRS based on the above-mentioned reduced DMRS pattern 1 (i.e., a pattern in which only one SC-FDMA symbol is assigned a DMRS in one subframe) (For example, 2) SC-FDMA symbols of the HARQ-ACK information. Also, in order to utilize the SC-FDMA symbol as much as possible, a method of allocating RI information using n SC-FDMA symbols around the HARQ-ACK information is proposed.

는 다음 표 1과 같은 의사 코드(pseudo-code)를 기반으로 상기 인터리빙 행렬의 요소인

에 할당될 수 있다. 이 경우 만약 상향링크 데이터 및 CQI/PMI에 관한 다중화된 벡터 시퀀스가 이미 해당

에 할당되었다고 할지라도, HARQ-ACK 정보에 관한 벡터 시퀀스는 해당

에 겹쳐쓴다. The vector sequence for HARQ-ACK information

Based on the pseudo-code as shown in Table 1 below, the element of the interleaving matrix < RTI ID = 0.0 >

Lt; / RTI > In this case, if the multiplexed vector sequence for the uplink data and the CQI / PMI already corresponds

, The vector sequence associated with the HARQ-ACK information is not

.

는 "ColumnSet(j)"가 가리키는 열들에 할당(또는 기술(written))되되, 마지막 행부터 시작하여 위쪽으로(upwards) 움직이며(moving) 할당된다. 여기서 상기 "ColumnSet(j)"는 예를 들어, 다음 표 2에 의하여 지시될 수 있으며, 상기 "ColumnSet(j)"는 해당 표의 값들에 대하여 왼쪽에서 오른쪽으로 0부터 1까지 인덱스된다.Referring to Table 1, a vector sequence for HARQ-ACK information

Is assigned (or written) to the columns pointed to by "ColumnSet ( j )", but is moved upwards starting from the last row. Here, the "ColumnSet ( j )" can be indicated by, for example, the following Table 2, and the "ColumnSet ( j ) " is indexed from 0 to 1 from left to right with respect to the values of the table.

CP configuration Column Set Normal {2, 3} Extended {1, 2}

는 다음 표 3과 같은 의사 코드를 기반으로 상기 인터리빙 행렬의 요소인

에 할당될 수 있다.Also, when the RI information is to be transmitted in the corresponding PUSCH transmission sub-frame, the vector sequence related to the RI information

Is an element of the interleaving matrix based on the pseudo code shown in Table 3 below.

Lt; / RTI >

는 "ColumnSet(j)"가 가리키는 열들에 할당(또는 기술(written))되며, 마지막 행부터 시작하여 위쪽으로(upwards) 움직이며(moving) 할당된다. 여기서 상기 "ColumnSet(j)"는 예를 들어, 다음 표 4에 의하여 지시될 수 있으며, 상기 "ColumnSet(j)"는 해당 표의 값들에 대하여 왼쪽에서 오른쪽으로 0부터 1까지 인덱스된다.Referring to Table 3, the vector sequence for RI information

Is assigned (or written) to the columns pointed to by "ColumnSet ( j )" and is moved upwards starting from the last row. Here, the "ColumnSet ( j ) " can be indicated by, for example, the following Table 4, and the column set ( j ) is indexed from 0 to 1 from left to right with respect to the values of the table.

CP configuration Column Set Normal {1, 4} Extended {0, 3}

11 shows an example of HARQ-ACK information and RI information mapping in the PUSCH region of one subframe according to the method 1 of the present invention.

FIG. 11 shows a case where a reduced DMRS is mapped to an SC-FMDA symbol of an even-numbered slot when a normal CP is configured, and a reduced DMRS is mapped to an SC-FDMA symbol of an even-numbered slot when an extended CP is configured For example. 11 shows a case where Table 2 is applied to the vector sequence related to the HARQ-ACK information and Table 4 is applied to the vector sequence related to the RI information.

Referring to FIG. 11, when the normal CP is configured, the HARQ-ACK information is mapped to the second and fourth SC-FDMA symbols of the even slot, and the RI information is mapped to the first and fifth SC- / RTI > Specifically, Table 2 indicates the 2 nd and 3 rd rows. However, the output of the interleaving matrix does not include SC-FDMA symbols (or corresponding SC-FDMA symbols if SRS is transmitted) to which the DMRS is mapped As a result, the HARQ-ACK information is mapped to the second and fourth SC-FDMA symbols in the even-numbered slot (the third SC-FDMA symbol is mapped to the DMRS). Table 4 shows the first and fifth rows. As a result, the RI information is mapped to the first and fifth SC-FDMA symbols in the even slot.

Meanwhile, when the extended CP is configured, the HARQ-ACK information is mapped to the first and third SC-FDMA symbols of the even slot, and the RI information is mapped to the 0th and 4th SC-FDMA symbols of the even slot.

Here, when the normal CP is configured, the 0th, 1st, 2nd, 3rd, 4th, 5th, 6th, and 6th odd slots of the even slots, 5, and 6 SC-FDMA symbol indexes correspond to SC-FDMA symbol indexes 0 to 13 of one subframe, respectively, as described above. In addition, when the extended CP is configured, the 0th, 1st, 2nd, 3rd, 4th, 5th and odd slot 0, 1st, 2nd, 3rd, 4th, 5th SC -FDMA symbol index corresponds to the SC-FDMA symbol indexes 0 to 11 of one subframe, respectively.

The HARQ-ACK information and the RI information can be mapped from a bottom subcarrier as described above. The same applies to the following.

Method 2

In the method 2, a method of allocating HARQ-ACK information and / or RI information uniformly for each PRB according to the number of PRBs used in the PUSCH area is proposed, unlike the method 1, based on the reduced DMRS pattern 1 described above.

는 다음 표 9과 같은 의사 코드(pseudo-code)를 기반으로 상기 인터리빙 행렬의 요소인

에 할당될 수 있다. 이 경우 만약 상향링크 데이터 및 CQI/PMI에 관한 다중화된 벡터 시퀀스가 이미 해당

에 할당되었다고 할지라도, HARQ-ACK 정보에 관한 벡터 시퀀스는 해당

에 겹쳐쓴다. The vector sequence for HARQ-ACK information

Based on the pseudo-code shown in Table 9 below, the element of the interleaving matrix < RTI ID = 0.0 >

Lt; / RTI > In this case, if the multiplexed vector sequence for the uplink data and the CQI / PMI already corresponds

, The vector sequence associated with the HARQ-ACK information is not

.

는 "ColumnSet(j)"가 가리키는 열들에 할당(또는 기술)되며, 각 PRB별로 균분하여 할당되도록 제어된다. 여기서 상기 "ColumnSet(j)"는 예를 들어, 다음 표 6에 의하여 지시될 수 있으며, 상기 "ColumnSet(j)"는 해당 표의 값들에 대하여 왼쪽에서 오른쪽으로 0부터 1까지 인덱스된다.Referring to Table 5, a vector sequence for HARQ-ACK information

Is assigned (or described) to the columns indicated by "ColumnSet ( j ) ", and is controlled to be uniformly allocated to each PRB. Here, the "ColumnSet ( j ) " can be indicated by, for example, the following Table 6, and the" ColumnSet ( j ) " is indexed from 0 to 1 from left to right with respect to the values of the table.

CP configuration Column Set Normal {2, 3} Extended {1, 2}

는 다음 표 7과 같은 의사 코드를 기반으로 상기 인터리빙 행렬의 요소인

에 할당될 수 있다.Also, when the RI information is to be transmitted in the corresponding PUSCH transmission sub-frame, the vector sequence related to the RI information

Is an element of the interleaving matrix based on the pseudo code shown in Table 7 below.

Lt; / RTI >

Referring to Table 7, the vector sequence for RI information Is assigned (or described) to the columns indicated by "ColumnSet ( j ) ", and is controlled to be uniformly allocated to each PRB. Here, the "ColumnSet ( j )" can be indicated by, for example, the following Table 8, and the "ColumnSet ( j ) " is indexed from left to right from 0 to 1 for the values of the table.

CP configuration Column Set Normal {1, 4} Extended {0, 3}

12 shows an example of HARQ-ACK information and RI information mapping in the PUSCH region of one subframe according to the method 2 of the present invention.

12 shows an example in which a reduced DMRS is mapped to an SC-FDMA symbol of 3 in an even slot, and a reduced DMRS is mapped to an SC-FDMA symbol of an even slot when an extended CP is configured. 12 illustrates a case where Table 6 is applied to the vector sequence related to the HARQ-ACK information, and Table 8 is applied to the vector sequence related to the RI information.

Referring to FIG. 12, when the normal CP is configured, the HARQ-ACK information is mapped to the second and fourth SC-FDMA symbols of the even slot, and is mapped to each PRB equally. In addition, when the normal CP is configured, the RI information is mapped to the first and fifth SC-FDMA symbols of the even slot and equally mapped to each PRB.

On the other hand, when the extended CP is configured, the HARQ-ACK information is mapped to the first and third SC-FDMA symbols of the even slot and equally mapped to each PRB. Also, when the extended CP is configured, the RI information is mapped to the 0th and 4th SC-FDMA symbols of the even slot, and is mapped to each PRB equally.

Method 3

In the method 3, a method of controlling HARQ-ACK information and / or RI information to be allocated according to the PRB index based on the reduced DMRS pattern 1 is proposed.

는 다음 표 9와 같은 의사 코드를 기반으로 상기 인터리빙 행렬의 요소인

에 할당될 수 있다. 이 경우 만약 상향링크 데이터 및 CQI/PMI에 관한 다중화된 벡터 시퀀스가 이미 해당

에 할당되었다고 할지라도, HARQ-ACK 정보에 관한 벡터 시퀀스는 해당

에 겹쳐쓴다. The vector sequence for HARQ-ACK information

Is an element of the interleaving matrix based on the pseudo code shown in Table 9 below.

Lt; / RTI > In this case, if the multiplexed vector sequence for the uplink data and the CQI / PMI already corresponds

, The vector sequence associated with the HARQ-ACK information is not

.

는 "ColumnSet(j)"가 가리키는 열들에 할당(또는 기술)되며, 마지막 행부터 시작하여 위쪽으로 움직이며 할당된다. 여기서 상기 "ColumnSet(j)"는 예를 들어, 다음 표 10에 의하여 지시될 수 있으며, 상기 "ColumnSet(j)"는 해당 표의 값들에 대하여 왼쪽에서 오른쪽으로 0부터 1까지 인덱스된다.Referring to Table 9, a vector sequence for HARQ-ACK information

Are assigned (or described) to the columns pointed to by "ColumnSet ( j )" and are assigned to move upwards starting from the last row. Here, the "ColumnSet ( j )" can be indicated by, for example, the following Table 10, and the "ColumnSet ( j ) " is indexed from 0 to 1 from left to right with respect to the values of the table.

CP configuration Column Set
(Even PRB) Column Set
(Odd PRB) Normal {2, 3} {1, 4} Extended {1, 2} {0, 3}

는 다음 표 11과 같은 의사 코드를 기반으로 상기 인터리빙 행렬의 요소인

에 할당될 수 있다.Also, when the RI information is to be transmitted in the corresponding PUSCH transmission sub-frame, the vector sequence related to the RI information

Based on the pseudo code shown in Table 11 below, the elements of the interleaving matrix

Lt; / RTI >

는 "ColumnSet(j)"가 가리키는 열들에 할당(또는 기술)되되, 마지막 행부터 시작하여 위쪽으로 움직이며 할당된다. 여기서 상기 "ColumnSet(j)"는 예를 들어, 다음 표 12에 의하여 지시될 수 있으며, 상기 "ColumnSet(j)"는 해당 표의 값들에 대하여 왼쪽에서 오른쪽으로 0부터 1까지 인덱스된다.Referring to Table 11, the vector sequence for RI information

Are assigned (or described) to the columns pointed to by "ColumnSet ( j )", and are moved upwards starting from the last row. ColumnSet ( j ) " may be indicated by, for example, the following Table 12, and "ColumnSet ( j ) " is indexed from 0 to 1 from left to right for the values of the table.

CP configuration Column Set
(Even PRB) Column Set
(Odd PRB) Normal {1, 4} {2, 3} Extended {0, 3} {1, 2}

13 shows an example of HARQ-ACK information and RI information mapping in the PUSCH region of one subframe according to the method 3 of the present invention.

13 shows an example in which a reduced DMRS is mapped to an SC-FDMA symbol of 3 in an even slot, and a reduced DMRS is mapped to an SC-FDMA symbol in an even slot when an extended CP is configured. 13 shows a case where Table 10 is applied to the vector sequence related to the HARQ-ACK information, and Table 12 is applied to the vector sequence related to the RI information.

Referring to FIG. 13, when the normal CP is configured, the HARQ-ACK information is mapped to the second and fourth SC-FDMA symbols in the even slot for the even PRB, and the first and fifth SC-FDMA symbols. When the normal CP is configured, the RI information is mapped to the first and fifth SC-FDMA symbols of the even-numbered slot for the even PRB, and to the second and fourth SC-FDMA symbols of the even- Are mapped.

When the extended CP is configured, the HARQ-ACK information is mapped to the first and third SC-FDMA symbols of the even-numbered slot for the even-numbered PRB and the 0th and 4th SC- FDMA symbols of the even- Lt; / RTI > When the extended CP is configured, the RI information is mapped to the 0th and 4th SC-FDMA symbols of the even-numbered slot for the even PRB, and to the 0th and 4th SC-FDMA symbols of the even- Are mapped.

Method 4

In the method 4, a method of cross-allocating HARQ-ACK information and / or RI information according to a subcarrier index based on the reduced DMRS pattern 1 is proposed.

는 다음 표 13과 같은 의사 코드를 기반으로 상기 인터리빙 행렬의 요소인

에 할당될 수 있다. 이 경우 만약 상향링크 데이터 및 CQI/PMI에 관한 다중화된 벡터 시퀀스가 이미 해당

에 할당되었다고 할지라도, HARQ-ACK 정보에 관한 벡터 시퀀스는 해당

에 겹쳐쓴다. The vector sequence for HARQ-ACK information

Is an element of the interleaving matrix based on the pseudo code shown in Table 13 below.

Lt; / RTI > In this case, if the multiplexed vector sequence for the uplink data and the CQI / PMI already corresponds

, The vector sequence associated with the HARQ-ACK information is not

.

는 "ColumnSet(j)"가 가리키는 열들에서 아래쪽의 행부터 시작하여 위쪽으로 움직이며 할당되되, 홀수 부반송파 인덱스에서 할당된다. 여기서 상기 "ColumnSet(j)"는 예를 들어 다음 표 14에 의하여 지시될 수 있으며, 상기 "ColumnSet(j)"는 해당 표의 값들에 대하여 왼쪽에서 오른쪽으로 0부터 3까지 인덱스된다.Referring to Table 13, a vector sequence for HARQ-ACK information

Is allocated in the columns indicated by "ColumnSet ( j )" starting from the bottom row and moving upwards, but in an odd subcarrier index. Here, the "ColumnSet ( j )" can be indicated by, for example, the following Table 14, and the "ColumnSet ( j ) " is indexed from 0 to 3 from left to right with respect to the values of the table.

CP configuration Column Set Normal {1, 2, 3, 4} Extended {0, 1, 2, 3}

는 다음 표 15와 같은 의사 코드를 기반으로 상기 인터리빙 행렬의 요소인

에 할당될 수 있다.Also, when the RI information is to be transmitted in the corresponding PUSCH transmission sub-frame, the vector sequence related to the RI information

Is an element of the interleaving matrix based on the pseudo code shown in Table 15 below

Lt; / RTI >

는 "ColumnSet(j)"가 가리키는 열들에서 아래쪽의 행부터 시작하여 위쪽으로 움직이며 할당되되, 짝수 부반송파 인덱스에서 할당된다. 여기서 상기 "ColumnSet(j)"는 예를 들어 다음 표 16에 의하여 지시될 수 있으며, 상기 "ColumnSet(j)"는 해당 표의 값들에 대하여 왼쪽에서 오른쪽으로 0부터 3까지 인덱스된다.Referring to Table 15, the vector sequence for RI information

Is allocated starting from the bottom row in the columns indicated by "ColumnSet ( j ) ", moving upwards, but from the even subcarrier index. Here, the "ColumnSet ( j )" can be indicated by, for example, the following Table 16, and the "ColumnSet ( j ) " is indexed from 0 to 3 from left to right for the values of the table.

CP configuration Column Set Normal {1, 2, 3, 4} Extended {0, 1, 2, 3}

14 shows an example of HARQ-ACK information and RI information mapping in the PUSCH region of one subframe according to the method 4 of the present invention.

14 shows an example in which a reduced DMRS is mapped to an SC-FDMA symbol of 3 in an even slot, and a reduced DMRS is mapped to an SC-FDMA symbol in an even slot when an extended CP is configured. 14 shows a case where Table 14 is applied to the vector sequence related to the HARQ-ACK information, and Table 16 is applied to the vector sequence relating to the RI information.

Referring to FIG. 14, when a normal CP is configured, HARQ-ACK information is mapped to first, second, fourth and fifth SC-FDMA symbols in an even slot and is mapped to an odd (indexed) subcarrier. Also, when the normal CP is configured, the RI information is mapped to the first, second, fourth and fifth SC-FDMA symbols of the even slot, but is mapped to the even (indexed) subcarrier.

On the other hand, when the extended CP is configured, the HARQ-ACK information is mapped to the 0th, 1st, 3rd and 4th SC-FDMA symbols of the even slot, and is mapped to the odd subcarrier. Also, when the extended CP is configured, the RI information is mapped to the 0th, 1st, 3rd and 4th SC-FDMA symbols of the even slot, but is mapped to the even subcarrier

Meanwhile, when only one of the HARQ-ACK information and the RI information is transmitted in the method 4, a resource corresponding to a transmission position of other information that is not transmitted in allocating the corresponding information may be used.

Method 5

Although the HARQ-ACK information and the RI information are allocated to the fixed positions in the above-described methods, the HARQ-ACK information and the RI information are allocated to the fixed positions in the subframe in which the corresponding PUSCH is transmitted, Method.

FIG. 15 shows an example of a method of allocating (or mapping) RI information according to the presence / absence of HARQ-ACK information transmission according to the method 5 of the present invention.

Referring to FIG. 15, the UE determines whether uplink control information HARQ-ACK information is transmitted through the PUSCH (S1500).

If the HARQ-ACK information is transmitted, the UE maps the HARQ-ACK information and the RI information on the SC-FDMA symbols according to a predetermined criterion and transmits the HARQ-ACK information and the RI information (S1510). In this case, the predetermined criterion may follow any of the above-described methods (other methods proposed in the present invention).

If the HARQ-ACK information is not transmitted, the UE transmits the RI information on SC-FDMA symbols mapped for HARQ-ACK information transmission (S1520). That is, if there is no HARQ-ACK information transmission and there is RI information transmission, the RI information can be transmitted on a reduced DMRS neighbor x _RI (2 in the figure) SC-FDMA symbols.

For example, when HARQ-ACK information is not transmitted through the corresponding PUSCH but only RI information is transmitted, the pseudo code for allocating the vector sequence for HARQ-ACK information to the interleaving matrix is as shown in Table 17, and RI The pseudo code for allocation of the vector sequence for information to the interleaving matrix may be as shown in Table 18.

The "ColumnSet ( j )" in Table 17 above may be indicated, for example, by the following Table 19, and the "ColumnSet ( j )"

CP configuration Column Set Normal {2, 3} Extended {1, 2}

CP configuration Column Set Normal {2, 3} Extended {1, 2}

In the above case, the RI information may be mapped to the PUSCH resource of the corresponding subframe as follows.

16 is an example of RI information mapping in the PUSCH region of one subframe according to the method 5 of the present invention.

16 shows an example in which a reduced DMRS is mapped to an SC-FDMA symbol of 3 in an even slot, and a reduced DMRS is mapped to an SC-FDMA symbol in an even slot when an extended CP is configured. 16 shows a case where Table 20 is applied to the vector sequence related to the RI information.

Referring to FIG. 16, when the normal CP is configured, the RI information is mapped to the second and fourth SC-FDMA symbols of the even slot. On the other hand, when the extended CP is configured, the RI information is mapped to the first and third SC-FDMA symbols of the even slot.

Method 6

In method 6, while maintaining the assumption that HARQ-ACK information and RI information are mapped to a maximum of 4 SC-FDMA symbols, the code rate of each of HARQ-ACK information and RI information is adjusted, It is proposed to map HARQ-ACK information and RI information to four surrounding SC-FDMA symbols. For example, β ^{HARQ - ACK} _offset for HARQ-ACK information and β ^RI _offset for RI information can be used to adjust the coding rate of HARQ-ACK information and RI information. In this case, HARQ-ACK information and RI information are efficiently adjusted by adjusting the coding rate for HARQ-ACK information and RI information efficiently in a medium-to-high SNR (Signal to Noise Ratio) May be mapped to n (e.g., two) SC-FDMA symbols around the reduced DMRS. In this case, the HARQ-ACK information and the RI information may be mapped by a frequency division multiplexing (FDM) method.

FIG. 17 is a diagram showing an example of a method of mapping HARQ-ACK information and RI information according to the method 6 of the present invention.

Referring to Figure 17, the HARQ-ACK information, and _ACK and _Q'Q'RI for RI information for, HARQ-ACK information to each channel coding of the RI information are calculated respectively. Here, the Q ' _ACK may be calculated based on the? ^{HARQ - ACK} _offset , the PUSCH coding rate, and the x _ACK . Also, the Q ' _RI can be calculated based on the β ^RI _offset , the PUSCH coding rate, and x _RI . Q ' _ACK and Q' _RI can be calculated based on Equations (5) and (6), respectively.

There as HARQ-ACK information, and each channel coding of the RI information, and used the calculated _ACK Q'Q'and _RI you are each, and the HARQ-ACK information and the RI information each coding rate can be adjusted. (Or mapping) SC-FDMA symbols of n (around x _ACK or x _RI ) adjacent to the reduced DMRS through the channel interleaving by controlling the HARQ-ACK information and RI information to be allocated (or mapped) And finally generates an SC-FDMA signal. The HARQ-ACK information and the RI information may be multiplexed on the same SC-FDMA symbol.

According to the method 6, in assigning the vector sequence related to the HARQ-ACK information and the vector sequence related to the RI information to the interleaving matrix, moving upwards starting from the last row of the designated columns, A vector sequence for information may be assigned, followed by a vector sequence for RI information. That is, the HARQ-ACK information is allocated upwards from the lower sub-carrier on the designated SC-FDMA symbols, and then the RI information can be allocated. The opposite is also possible.

For example, in accordance with Method 6, the pseudo code for allocation of the vector sequence for HARQ-ACK information and the vector sequence for RI information to the interleaving matrix may be as shown in Table 21. [

In Table 21, the two while statements are applied sequentially. That is, in the second while statement, only the variable i is refreshed to 0, and the current values of the remaining variables are applied. Here, the following may be indicated by the table 22. Both _{"C AKC = ColumnSet (j)} " of ColumnSet (j), and _{"C RI = ColumnSet (j)} " of ColumnSet (j).

CP configuration Column Set Normal {2, 3} Extended {1, 2}

18 is an example of HARQ-ACK information RI information mapping to a PUSCH region of one subframe according to the method 6 of the present invention.

FIG. 18 shows an example in which a reduced DMRS is mapped to an SC-FDMA symbol of 3 in an even slot, and a reduced DMRS is mapped to an SC-FDMA symbol in an even slot when an extended CP is configured. 18 shows a case in which Table 22 is applied to both the vector sequence for the HARQ-ACK information and the vector sequence for the RI information.

Referring to FIG. 18, when the normal CP is configured, HARQ-ACK information and RI information are mapped to the second and fourth SC-FDMA symbols of an even slot, and HARQ-ACK information is mapped up from the lower sub- , And then the RI information is mapped.

When the extended CP is configured, the HARQ-ACK information and the RI information are mapped to the first and third SC-FDMA symbols of the even slot, and the HARQ-ACK information is mapped up from the lower sub-carrier first, Information is mapped.

FIG. 19 is an example of a flowchart showing a method of performing HARQ-ACK information RI information mapping in a PUSCH region of one subframe according to the present invention.

Referring to FIG. 19, the UE receives PUSCH scheduling information (S1900). For example, the UE can check whether the PUSCH is scheduled based on downlink control information (DCI) transmitted on the PDCCH. DCI has various formats, and DCI format 0 is used for scheduling of PUSCH in uplink cells. That is, the UE receives the PDCCH for the corresponding UE from the BS, and if the PDCCH includes the DCI format 0, it can be confirmed that the PUSCH is scheduled on the specific subframe.

The UE calculates a HARQ-ACK information, and, if that should be at least one of the RI information transmitted on the sub-frame in which the PUSCH is transmitted, at least one of _ACK and _Q'Q'RI (S1910). Here, Q ' _ACK can be calculated based on Equation (5) described above, and Q' _RI can be calculated based on Equation (6) described above. In this case, x _{ACK in} Equation (5) and X _RI in Equation (6) may be set to 2, for example. For example, if a reduced DMRS is set, the UE can calculate and use the Q ' _ACK and the Q' _RI instead of Q '. The terminal may receive information regarding the reduced DMRS configuration from the base station. For example, the terminal may receive information regarding reduced DMRS settings through RRC signaling.

The UE performs the HARQ-ACK information and channel coding at least one of the RI information is based on at least one of the calculated _ACK Q'and _Q'RI, and the vector sequence and the RI information to the HARQ-ACK information (S1920). ≪ / RTI > The UE can perform channel coding on the HARQ-ACK information based on the calculated Q ' _ACK to obtain a vector sequence related to the HARQ-ACK information. Also, the UE can perform channel coding on the RI information based on the calculated Q ' _RI to obtain a vector sequence related to the RI information.

(Or writes) at least one of the vector sequence related to the HARQ-ACK information and the vector sequence related to the RI information to the elements of the interleaving matrix for channel interleaving (S1930). A reduced DMRS can be used to improve the spectral efficiency of the uplink. The reduced DMRS may be mapped to the physical layer, for example, as shown in FIG. 7, FIG. 8, or FIG.

The assignment of at least one of the vector sequence for the HARQ-ACK information and the vector sequence for the RI information to the elements of the interleaving matrix may be performed by any one of the above-mentioned methods 1 to 6 or a combination thereof have.

The MS maps at least one of the HARQ-ACK information and the RI information to the physical layer region of the PUSCH based on the interleaving matrix and transmits the MAP to the BS in operation S1940.

20 is an example of a block diagram illustrating a terminal according to the present invention.

Referring to FIG. 20, a terminal 2000 includes a communication unit 2010, a coding rate adjustment block 2020, a channel coding unit 2030, a channel interleaver 2040, and a mapper 2050.

The communication unit 2010 receives the PUSCH scheduling information from the base station through the PDCCH. The PUSCH scheduling information may be indicated through DCI format 0, for example.

Also, the communication unit 2010 can receive information on the reduced DMRS setting from the base station. The information regarding the reduced DMRS setting may be information indicating a reduced DMRS mapping in the physical layer, for example, as shown in FIG. 7, FIG. 8, or FIG.

The coding rate adjustment block 2020 calculates Q ' _ACK and / or Q' _RI . The coding rate adjustment block 2020 can calculate Q ' _ACK based on Equation (5). Also, the coding rate adjustment block 2020 can calculate Q ' _RI based on Equation (6). In this case, x _{ACK in} Equation (5) and X _RI in Equation (6) may be set to 2, for example. For example, the coding rate adjustment block 2020 can calculate and use the Q ' _ACK and the Q' _RI instead of Q 'when the reduced DMRS is set.

The channel coding unit 2030 channel-codes HARQ-ACK information and / or RI information based on the Q ' _ACK and / or the Q' _RI , and outputs the vector sequence related to the HARQ-ACK information and / Generates a vector sequence of information.

The channel interleaver 2040 allocates (or writes) the vector sequence related to the HARQ-ACK information and / or the vector sequence relating to the RI information to the elements of the interleaving matrix for channel interleaving. In this case, the channel interleaver 2040 may assign a vector sequence related to the HARQ-ACK information and / or a vector sequence related to the RI information to the elements of the interleaving matrix based on the reduced DMRS setting.

The channel interleaver may allocate to the elements of the interleaving matrix a vector sequence related to the HARQ-ACK information and / or a vector sequence relating to the RI information by any one of the methods 1 to 6 described above or a combination thereof have.

MAPER 2050 maps at least one of the HARQ-ACK information and the RI information to the physical layer region of the PUSCH based on the interleaving matrix, and outputs the PUSCH in which the HARQ-ACK information and / or the RI information are multiplexed And transmits the PUSCH to the base station through the communication unit 2010.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

Claims (20)

A terminal for transmitting uplink control information (UCI) through a Physical Uplink Shared Channel (PUSCH)
The coding and modulation on the HARQ-ACK (Hybrid Automatic Repeat Request -Acknowledgement) information transmitted on a subframe for the PUSCH transmission symbol RI _(Q'ACK transmitted on the sub-frame and indicates the number of (coded modulation symbol) Rank A coding rate adjustment block for calculating at least one of Q ' _RI indicating the number of coded modulation symbols related to the information of the coding rate;
A channel coding unit that performs channel coding is based on at least one of the _ACK and _Q'Q'RI and generating at least one of the vector sequence in the vector sequence and the RI information to the HARQ-ACK information;
A channel interleaver for allocating at least one of a vector sequence for HARQ-ACK information and a vector sequence for RI information to elements of an interleaving matrix for channel interleaving; And
And a mapper for mapping the at least one of the HARQ-ACK information and the RI information to an area for the PUSCH based on the interleaving matrix to generate the PUSCH,
The coding rate adjustment block calculates the Q ' _ACK based on a variable x _ACK for controlling the number of SC-FDMA symbols to which the HARQ-ACK information is mapped, And calculates the Q ' _RI based on a variable x _RI for controlling the number of SC-FDMA symbols to which the mapped SC-FDMA symbols are mapped. The method according to claim 1,
And a communication unit for receiving information on the reduced DMRS setting from the base station,
The mapper maps the DMRS to only the third (# 3) or thirteenth (# 10) SC-FDMA symbol in the subframe for PUSCH transmission if a normal CP is configured in the UE (# 2) or 8 (# 8) SC-FDMA symbols of the subframe when the extended CP is configured in the UE. The method according to claim 1,
And a communication unit for receiving information on the reduced DMRS setting from the base station,
If the UE is configured with a normal CP (Cyclic Prefix), the MAPPER allocates a DMRS to an SCP-FDMA (Single Carrier-Frequency Division Multiple Access) subframe for PUSCH transmission for an even PRB (Physical Resource Block) Mapping only odd numbered SC-FDMA symbols in the subframe to odd PRBs,
If the extended CP is configured in the UE, the DMRS maps only the second SC-FDMA symbol of the subframe to the even PRB, and maps only the 8th SC-FDMA symbol of the subframe to the odd PRB . ≪ / RTI > The method according to claim 1,
Wherein the code rate adjustment block calculates the Q ' _ACK based on Equation (1): < EMI ID =

(One)
Here, O is the number of RI bits or HARQ-ACK bits, and M ^PUSCH _SC is the bandwidth scheduled for PUSCH transmission in the current subframe for the transport block, expressed as the number of subcarriers, and N ^{PUSCH - initial} _Symb is the number of SC-FDMA symbols per subframe for initial PUSCH transmission for the same transport block and M ^{PUSCH -initial} _sc is the number of subcarriers for initial PUSCH transmission for the same transport block , Where C is the number of code blocks, K _r is the number of bits for code block number r,? ^{HARQ - ACK} _offset is an offset value specific to the HARQ-ACK information, x _ACK is an integer between 1 and 4 It is a variable that represents either value. The method according to claim 1,
Wherein the code rate adjustment block calculates the Q ' _ACK based on the following equation (2)

(2)
Here, O is the number of RI bits or HARQ-ACK bits, and M ^PUSCH _SC is the bandwidth scheduled for PUSCH transmission in the current subframe for the transport block, expressed as the number of subcarriers, and N ^{PUSCH - initial} _Symb is the number of SC-FDMA symbols per subframe for initial PUSCH transmission for the same transport block and M ^{PUSCH -initial} _sc is the number of subcarriers for initial PUSCH transmission for the same transport block , Where C is the number of code blocks, K _r is the number of bits for the code block number r,? ^RI _offset is an offset value specific to the RI information, and x _RI is any one of integers 1 to 4 . The method according to claim 1,
Wherein the mapper maps the HARQ-ACK information and the RI information to a number of subcarriers uniform for each PRB according to the number of PRBs used in the PUSCH region. The method according to claim 1,
Wherein the mapper cross-maps the HARQ-ACK information and the RI information according to an even and odd index of a PRB used in the PUSCH region. The method according to claim 1,
Wherein the channel interleaver allocates a vector sequence for the HARQ-ACK information and a vector sequence for the RI information to the same columns of the interleaving matrix,
Wherein the mapper crosses the HARQ-ACK information and the RI information according to an even and odd index of a subcarrier used in the PUSCH region, and maps the HARQ-ACK information and the RI information to SC-FDMA symbols. The method according to claim 1,
Wherein the channel interleaver allocates a vector sequence related to the RI information to the columns of the interleaving matrix to which a vector sequence related to the HARQ-ACK information is to be allocated when only a vector sequence related to the RI information is generated. Terminal. The method according to claim 1,
Wherein the channel interleaver allocates a vector sequence for the HARQ-ACK information and a vector sequence for the RI information to the same columns of the interleaving matrix,
Wherein the mapper maps the HARQ-ACK information to sub-carriers of a higher index among sub-carriers used in the PUSCH region. A method for transmitting uplink control information (UCI) performed by a UE through a Physical Uplink Shared Channel (PUSCH)
The coding and modulation on the HARQ-ACK (Hybrid Automatic Repeat Request -Acknowledgement) information transmitted on a subframe for the PUSCH transmission symbol RI _(Q'ACK transmitted on the sub-frame and indicates the number of (coded modulation symbol) Rank Indicator) calculating at least one of a _Q'RI indicating the number of the coded modulation symbols of the information;
Performing channel coding is based on at least one of the _ACK and _Q'Q'RI and generating at least one of the vector sequence in the vector sequence and the RI information to the HARQ-ACK information;
Allocating at least one of a vector sequence for HARQ-ACK information and a vector sequence for RI information to elements of an interleaving matrix for channel interleaving; And
And mapping at least one of the HARQ-ACK information and the RI information to an area for the PUSCH based on the interleaving matrix,
The _Q'ACK is calculated as SC-FDMA (Single Carrier-Frequency Division Multiple Access) based on the variable x _ACK for controlling the number of symbols in which the HARQ-ACK information mapped to the _Q'RI is that the RI information And calculating a variable x _RI for controlling the number of SC-FDMA symbols to be mapped. 12. The method of claim 11,
Further comprising receiving from the base station information regarding the reduced DMRS setting,
The DMRS, indicated by the reduced DMRS setting,
If the UE is configured with a normal CP, it is mapped only to a third (# 3) or a 10th (# 10) SC-FDMA symbol of a subframe for PUSCH transmission,
(# 2) or 8 (# 8) SC-FDMA symbols of the subframe when the extended CP is configured in the UE. 12. The method of claim 11,
Further comprising receiving from the base station information regarding the reduced DMRS setting,
The DMRS, indicated by the reduced DMRS setting,
If a Cyclic Prefix (CP) is configured in the UE, only an SC-FDMA symbol of a subframe for PUSCH transmission is allocated to an even PRB (Physical Resource Block) Mapped to only the 10th SC-FDMA symbol in the subframe for the odd PRB,
If the extended CP is configured in the UE, only the second SC-FDMA symbol of the subframe is mapped to the even PRB, and only the 8th SC-FDMA symbol of the subframe is mapped to the odd PRB. , Transmission method. 12. The method of claim 11,
Wherein the Q ' _ACK is calculated based on the following equation (3): < EMI ID =

(3)
Here, O is the number of RI bits or HARQ-ACK bits, and M ^PUSCH _SC is the bandwidth scheduled for PUSCH transmission in the current subframe for the transport block, expressed as the number of subcarriers, and N ^{PUSCH - initial} _Symb is the number of SC-FDMA symbols per subframe for initial PUSCH transmission for the same transport block and M ^{PUSCH -initial} _sc is the number of subcarriers for initial PUSCH transmission for the same transport block , Where C is the number of code blocks, K _r is the number of bits for code block number r,? ^{HARQ - ACK} _offset is an offset value specific to the HARQ-ACK information, x _ACK is an integer between 1 and 4 It is a variable that represents either value. 12. The method of claim 11,
Wherein the Q ' _RI is calculated based on the following equation (4): < EMI ID =

(4)
Here, O is the number of RI bits or HARQ-ACK bits, and M ^PUSCH _SC is the bandwidth scheduled for PUSCH transmission in the current subframe for the transport block, expressed as the number of subcarriers, and N ^{PUSCH - initial} _Symb is the number of SC-FDMA symbols per subframe for initial PUSCH transmission for the same transport block and M ^{PUSCH -initial} _sc is the number of subcarriers for initial PUSCH transmission for the same transport block , Where C is the number of code blocks, K _r is the number of bits for the code block number r,? ^RI _offset is an offset value specific to the RI information, and x _RI is any value between 1 and 4 . 12. The method of claim 11,
Wherein the HARQ-ACK information and the RI information are respectively mapped to a number of subcarriers that are uniform for each PRB according to the number of PRBs used in the PUSCH region. 12. The method of claim 11,
Wherein the HARQ-ACK information and the RI information are mapped to SC-FDMA symbols according to an even and odd index of a PRB used in the PUSCH region. 12. The method of claim 11,
A vector sequence for the HARQ-ACK information and a vector sequence for the RI information are allocated to the same columns of the interleaving matrix,
Wherein the HARQ-ACK information and the RI information are mapped to each other according to even and odd indexes of subcarriers used in the PUSCH region. 12. The method of claim 11,
Wherein when only a vector sequence related to the RI information is generated, a vector sequence related to the RI information is allocated to the columns of the interleaving matrix to which a vector sequence related to the HARQ-ACK information is to be allocated. 12. The method of claim 11,
Wherein the vector sequence for the HARQ-ACK information and the vector sequence for the RI information are allocated to the same columns of the interleaving matrix,
Wherein the HARQ-ACK information is mapped to sub-carriers of a higher index among sub-carriers used in the PUSCH region.

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