KR20130004790A - Method and apparatus for transmitting or processing signal in wireless communication systems - Google Patents

Abstract

The present specification discloses a signal transmission method, a signal processing method, and a terminal thereof in a wireless communication system.

Description

Signal transmission method and signal processing method in a wireless communication system, the terminal, the base station TECHNICAL FIELD

The present invention relates to a signal transmission method, a signal processing method, a terminal thereof, and a base station in a wireless communication system.

As communications systems evolved, consumers, such as businesses and individuals, used a wide variety of wireless terminals.

Current wireless communication systems are high-speed, high-capacity communication systems capable of transmitting and receiving various data such as video, wireless data, etc., out of voice-oriented services, and there is a demand for technology for transmitting large-capacity data corresponding to wired communication networks.

The present invention can reduce the control signal overhead and time delay between the base station and the terminal through the simultaneous transmission of the control signal in a wireless communication system.

In addition, the present invention can lead to a small amount of downlink data retransmission can significantly improve the downlink throughput (Throughput).

In one aspect, the present invention provides a method for generating and transmitting a control signal in a wireless communication system, the method comprising: generating a complex symbol by modulating one or more HARQ-ACK / NACK bits; Generating a block of complex symbols by multiplying the generated complex symbols by a cyclically delayed sequence of length 12; Scrambling the generated blocks of complex symbols into a scrambling sequence, spreading them into an orthogonal sequence, and mapping them to time-frequency resources; And generating and transmitting a signal from the mapped time-frequency resource, wherein for the two slots in each subframe, the orthogonal sequence used for spreading in the first slot is a first orthogonal sequence group One of the orthogonal sequences belonging to and used for spreading in the second slot is one of the orthogonal sequences belonging to the first orthogonal sequence group according to the presence or absence of a scheduling request (SR) or the second orthogonal sequence; A method is characterized by being one of orthogonal sequences belonging to a sequence group.

In another aspect, the present invention provides a method for generating and transmitting a control signal by a terminal in a wireless communication system, the method comprising: generating one complex symbol by modulating one or more HARQ-ACK / NACK bits; Generating a block of complex symbols by multiplying the generated complex symbols by a cyclically delayed sequence of length 12; Scrambling the generated blocks of complex symbols into a scrambling sequence, spreading them into an orthogonal sequence, and mapping them to time-frequency resources; And generating and transmitting a signal from the mapped time-frequency resource, wherein for the two slots in each subframe, the orthogonal sequence used for spreading in each slot is a scheduling request (SR). And one of orthogonal sequences belonging to the first orthogonal sequence group or one of orthogonal sequences belonging to the second orthogonal sequence group according to the presence or absence thereof.

 In another aspect, the present invention provides a method for a base station to receive a control signal from a terminal in a wireless communication system, the method comprising the steps of: transmitting a PDSCH assigned to a specific terminal; And

The specific terminal generates complex symbols by modulating one or more HARQ-ACK / NACK bits for the PDSCH transmission, multiplies the generated complex symbols by a cyclic delayed sequence of length 12 to generate a block of complex symbols. Scrambling the generated blocks of complex symbols in a scrambling sequence, spreading them in an orthogonal sequence, mapping them to time-frequency resources, generating and transmitting signals from the mapped time-frequency resources, from the specific terminal And receiving, for the two slots in each subframe, the orthogonal sequence used for spreading in the first slot is one of the orthogonal sequences belonging to the first orthogonal sequence group and in the second slot The orthogonal sequence used for spreading depends on whether a scheduling request (SR) is present or not. Provided is one of orthogonal sequences belonging to one orthogonal sequence group or one of orthogonal sequences belonging to a second orthogonal sequence group.

In another aspect, the present invention provides a method for a base station to receive a control signal from a terminal in a wireless communication system, the method comprising the steps of: transmitting a PDSCH assigned to a specific terminal; And generating a complex symbol by modulating one or more HARQ-ACK / NACK bits, and generating a block of complex symbols by multiplying the generated complex symbol by a cyclic delayed sequence of 12 and generating the complex symbol. Scrambling a block of data into a scrambling sequence, spreading the data into an orthogonal sequence, mapping it to a time-frequency resource, generating a signal from the mapped time-frequency resource, and receiving a control signal from the specific terminal. For the two slots in each subframe, the orthogonal sequence used for spreading in each slot is one of orthogonal sequences belonging to the first orthogonal sequence group depending on the presence or absence of a scheduling request SR. Or one of orthogonal sequences belonging to a second orthogonal sequence group. It provides the law.

In another aspect, the present invention is a terminal for generating and transmitting a control signal in a wireless communication system, the modulation unit for generating a complex symbol by modulating one or more HARQ-ACK / NACK bits; And generating a block of complex symbols by multiplying the generated complex symbol by a cyclically delayed sequence of 12, scrambling the generated block of complex symbols into a scrambling sequence, and spreading the complex symbol into an orthogonal sequence to obtain a time-frequency resource. And a resource allocation unit for generating and transmitting a signal from the mapped time-frequency resource, wherein for the two slots in each subframe, the orthogonal sequence used for spreading in the first slot includes: One of the orthogonal sequences belonging to one orthogonal sequence group, and the orthogonal sequence used for spreading in the second slot is one of the orthogonal sequences belonging to the first orthogonal sequence group according to the presence or absence of a scheduling request (SR); Or one of orthogonal sequences belonging to a second orthogonal sequence group. A terminal is provided.

In another aspect, the present invention is a terminal for generating and transmitting a control signal in a wireless communication system, the modulation unit for generating one complex symbol by modulating one or more HARQ-ACK / NACK bits; And generating a block of complex symbols by multiplying the generated complex symbol by a cyclically delayed sequence of 12, scrambling the generated block of complex symbols into a scrambling sequence, and spreading it into an orthogonal sequence to map it to a time-frequency resource. And a resource allocation unit for generating and transmitting a signal from the mapped time-frequency resource, wherein for each of the two slots in each subframe, the orthogonal sequence used for spreading in each slot includes a scheduling request ( According to the presence or absence of SR) provides a terminal characterized in that one of the orthogonal sequences belonging to the first orthogonal sequence group or one of the orthogonal sequences belonging to the second orthogonal sequence group.

In another aspect, the present invention is a base station for receiving a control signal from a terminal in a wireless communication system, a transmission unit for transmitting a PDSCH assigned to a specific terminal; The specific terminal generates complex symbols by modulating one or more HARQ-ACK / NACK bits for the PDSCH transmission, multiplies the generated complex symbols by a cyclic delayed sequence of length 12 to generate a block of complex symbols. Scrambling the generated blocks of complex symbols in a scrambling sequence, spreading them in an orthogonal sequence, mapping them to time-frequency resources, generating and transmitting signals from the mapped time-frequency resources, from the specific terminal Receiving unit for receiving; And a controller for controlling the transmitter and the receiver, wherein, for two slots in each subframe, the orthogonal sequence used for spreading in the first slot is selected from among orthogonal sequences belonging to the first orthogonal sequence group. One orthogonal sequence used for spreading in a second slot is one of orthogonal sequences belonging to a first orthogonal sequence group or an orthogonal sequence belonging to a second orthogonal sequence group depending on whether a scheduling request (SR) exists or not. It provides a base station characterized in that one of the.

In another aspect, the present invention is a base station for receiving a control signal from a terminal in a wireless communication system, a transmission unit for transmitting a PDSCH assigned to a specific terminal; The specific terminal modulates one or more HARQ-ACK / NACK bits to generate one complex symbol, and multiplies the generated complex symbol by a cyclically delayed sequence of length 12 to generate a block of complex symbols and to generate the complex symbols. A receiving unit for receiving a control signal from the specific terminal by scrambling a block in a scrambling sequence, spreading the data in an orthogonal sequence, mapping it to a time-frequency resource, and generating and transmitting a signal from the mapped time-frequency resource; And a controller for controlling the transmitter and the receiver, wherein, for two slots in each subframe, the orthogonal sequence used for spreading in each slot is determined according to the presence or absence of a scheduling request (SR). Provided is one of orthogonal sequences belonging to one orthogonal sequence group or one of orthogonal sequences belonging to a second orthogonal sequence group.

1 is a block diagram of an uplink control channel according to an embodiment when having a general CP.
2 is a block diagram of an uplink control channel according to another embodiment when having an extended CP.
3 is a configuration diagram of an uplink control channel according to another embodiment when having a general CP.
4 is a flowchart of signals of a base station and a terminal according to another embodiment.
5 is a configuration diagram of a base station according to another embodiment.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same components as much as possible even though they are shown in different drawings. In the following description 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 invention rather unclear.

1 is a block diagram of an uplink control channel according to an embodiment when having a general CP. 2 is a block diagram of an uplink control channel according to another embodiment when having an extended CP.

Referring to FIG. 1, in case of having a general CP, the terminal 100 includes a channel coder 110, a scrambler 120, a modulator 130, and a resource allocator 140. Likewise, referring to FIG. 2, in case of having an extended CP, the terminal 200 includes a channel coder 110, a scrambler 120, a modulator 130, and a resource allocator 240.

However, the uplink control channel may not include the channel coding unit 110 and the scrambler 120 according to a configuration format.

1 and 2, one subframe may include two slots. One slot may include a plurality of OFDM symbols in the time domain and at least one subcarrier in the frequency domain. For example, in case of having a normal CP (normal cyclic prefix), one slot includes 7 OFDM symbols in the subframe shown in FIG. In case of having an extended cyclic prefix (CP), one slot includes 6 OFDM symbols in the subframe illustrated in FIG. 2.

In order to implement various transmission or reception techniques for high-speed packet transmission, transmission of control information for a time, frequency, and spatial domain is indispensable. A channel for transmitting control information is called a control channel. A physical layer channel for transmitting control information from a base station to a terminal is called a downlink control channel (PDCCH), and a physical layer channel for transmitting control information from a terminal to a base station is a physical uplink control channel. PUCCH).

The control information transmitted through the uplink control channel includes a hybrid automatic repeat request (HARQ) -positive-acknowledgement (ACK) / Negative-acknowledgement (ACK) signal, which is a response to downlink data transmission, and a CQI indicating downlink channel quality. Also known as a Channel Quality Indicator, or CSI (Channel Statement Information) report), a Scheduling Request signal for radio resource allocation requests, and a Precoding Matrix Indicator (PMI) that points to a precoding matrix. Can be.

The control channel supports various formats as shown in Table 1 according to the type of control information.

[Table 1]

For example, PUCCH format 1 may be used to transmit a scheduling request (SR). That is, the scheduling request may be transmitted in PUCCH format 1 by expressing two cases of presence or absence as a complex symbol d (0). In more detail, when a scheduling request exists, the complex symbol d (0) = 1 may be expressed in PUCCH format 1. In this way, a scheduling request (SR) transmitted when an SR is present may be referred to as a positive SR. In contrast, a scheduling request (SR) transmitted when an SR does not exist is negative. It can be called a negative SR. At this time, the case where the scheduling request (SR) is present and non-existent, the positive SR and the negative SR may be transmitted one of the two by changing the information value, In contrast, substantially no negative SR is transmitted, only positive SRs can be transmitted with a particular information value (e.g., via a complex symbol represented by d (0) = 1 mentioned above). It may be.

For another example, in order to transmit HARQ-ACK / NACK (hereinafter, referred to as ACK / NACK), PUCCH formats 1a / 1b and the like may be used. In other words, ACK / NACK is represented by d (0), which is a BPSK symbol for two cases represented by 1 bit, and transmitted in PUCCH format 1a, and by d (0), which is a QPSK symbol for 4 cases represented by 2 bits. It can transmit in PUCCH format 1b. In the PUCCH format 1b, not only 2 bits but also up to 4 bits of ACK / NACK may be transmitted at one time. However, when 2 bits are exceeded, the QPSK symbol represented by the above-mentioned 2 bits is finally selected through channel selection. d (0) is also generated and transmitted in PUCCH format 1b.

In a wireless communication system, a time division duplex (TDD) needs to simultaneously transmit a scheduling request and ACK / NACK to save PUCCH resources for scheduling request (SR) transmission and to increase downlink throughput.

은 자원할당부(140)에 의해 상향링크 제어채널 상으로 할당된 상향링크 자원 (resource block)을 통해 전송될 수 있다. 할당된 상향링크 자원은 전체 가용한 셀 대역폭의 맨 가장자리에 위치할 수 있다. 예를 들어 이 자원은 서브프레임의 첫 번째 슬롯에서 아래쪽 가장자리에 위치할 수 있다. 동일한 크기의 자원이 동일한 서브프레임의 두 번째 슬롯에서 위쪽 가장자리에 위치할 수 있다. 반대로 이 자원이 서브프레임의 첫 번재 슬롯에서 위쪽 가장자리에 위치하고 동일한 크기의 자원이 동일한 서브프레임의 두 번째 슬롯에서 아래쪽 가장자리에 위치할 수 있다. 제어정보 전송에 더 많은 자원이 필요할 경우 이전에 할당된 자원들의 하나 안쪽으로 추가적인 자원들이 제어정보를 위해 더 할당될 수 있다. 1 and 2, uplink control information

May be transmitted through an uplink resource allocated by the resource allocator 140 on the uplink control channel. The allocated uplink resource may be located at the far edge of the total available cell bandwidth. For example, this resource may be located at the bottom edge of the first slot of a subframe. Resources of the same size may be located at the upper edge in the second slot of the same subframe. Conversely, this resource may be located at the top edge of the first slot of the subframe and the same size of resource may be located at the bottom edge of the second slot of the same subframe. If more resources are needed for transmission of control information, additional resources may be further allocated for control information into one of the previously allocated resources.

은 채널코딩부(110)에 의해 채널코딩되고(

), 스크램블러(120)에 의해 스크램블링(Scrambling)되고, 변조부(130)에 의해 변조되어 복소심볼(complex-valued symbol)들이 된다. The uplink control information

Is channel coded by the channel coding unit 110 (

Scrambling by the scrambler 120, modulated by the modulator 130, and complex-valued symbols.

)로 구성되거나 혹은 두 개의 코드워드 각각 1비트씩 총 HARQ-ACK/NACK 2비트(

)로 직접 구성될 수 있다. However, the channel coder 110 and the scrambler 120 may not be included in the apparatus of FIGS. 1 and 2 according to a configuration format of an uplink control channel (PUCCH) for transmitting the uplink control information. For example, in the case of PUCCH format 1 / 1a / 1b, a bit value is set to 1 for ACK, which is a positive ACK, and 0 for NACK, which is a negative ACK. HARQ-ACK / NACK 1 bit from

Or 2 bits of total HARQ-ACK / NACK

Can be configured directly.

Therefore, when the complex symbol d (0) is used in the PUCCH format 1 / 1a / 1b of Table 1, in the PUCCH transmission from the terminal 100, one code is shown in Table 2 in HARQ-ACK / NACK transmission. Modulate one HARQ-ACK / NACK bit into BPSK for a word to transmit complex symbol d (0) in PUCCH format 1a, or two HARQ-ACK / NACK bits into QPSK for two codewords By modulating, the complex symbol d (0) may be transmitted in the PUCCH format 1b.

[Table 2]

와 곱하여진다(multiplied). 이 때 상기 시퀀스

는 길이(length)가

이며

만큼 순환지연(cyclic shift)된 시퀀스로써, CAZAC(Constant Amplitude Zero Auto-Correlation) 시퀀스 혹은 이와 유사한 시퀀스를 사용할 수가 있다.
Referring to FIG. 1, the complex symbol d (0) is a cyclic delayed length 12 sequence for each of the P antenna ports used for PUCCH transmission as shown in Equation 1 below.

Multiplied with. Where the sequence

Is the length

And

As a cyclic shifted sequence, a constant amplitude zero auto-correlation (CAZAC) sequence or a similar sequence can be used.

[Equation 1]

는 CAZAC 시퀀스를 기반으로 하는 기본 시퀀스(base sequence)

를

만큼 순환지연(cyclic shift) 한 시퀀스로써

와 같이 표현될 수 있다. 이 때, 순환지연(cyclic shift)

에서

는 안테나포트를 의미하며,

는 슬롯(slot) 넘버,

은 심볼 넘버로써 이는 순환지연(cyclic shift)이 각각의 안테나포트에 대하여 슬롯 및 심볼마다 서로 다른 값을 가질 수 있음을 의미한다.
That is, the sequence

Base sequence based on a CAZAC sequence

To

As a sequence of cyclic shifts

Can be expressed as At this time, cyclic shift

in

Means antenna port,

Is the slot number,

Is a symbol number, which means that a cyclic shift may have a different value for each slot and symbol for each antenna port.

와 곱해진(multiplied) 복소심볼(complex-valued symbol)의 블록(block)

는 수학식 2와 같이 시퀀스

로 스크램블링(scrambling)되며, 안테나포트 별로 특정되게 정의되는(antenna-port specific) 직교 시퀀스(orthogonal sequence, 혹은 OCC(Orthogonal Cover Code))

로 스프레딩(spreading)된다.
Sequence

Block of complex-valued symbols multiplied with

Is a sequence as shown in Equation 2

Scrambling, orthogonal sequence (Orthogonal Cover Code (OCC)), defined as antenna-port specific

Spreading to

&Quot; (2) "

In Equation 2, m` = 0 means the first slot in one subframe, and m` = 1 means the second slot in one subframe. In addition, m denotes an index of a symbol for PUCCH format used in the one slot, for example, PUCCH format 1 / 1a / 1b transmission. Hereinafter, the PUCCH format will be described as an exemplary PUCCH format 1 / 1a / 1b, but is not limited thereto.

이다. The total number of symbols for PUCCH format 1 / 1a / 1b transmission in one slot is the number of spreading factors (SF) of the orthogonal sequence.

to be.

는 모두 4일 수 있다. 미도시하였으나 상향링크 참조신호를 할당하기 위해 서브프레임의 두 번째 슬롯의 마지막 심볼을 비워놓는 짧은 길이(shortened)의 PUCCH 포맷 1/1a/1b 전송에서는 첫 번째 슬롯의

가 4이며 두 번째 슬롯의

가 3일 수 있다. In this case, as shown in FIGS. 1 and 2, in the normal PUCCH format 1 / 1a / 1b transmission, the first slot and the second slot are used.

May be all four. Although not shown, in the shortened PUCCH format 1 / 1a / 1b transmission in which the last symbol of the second slot of the subframe is empty to allocate an uplink reference signal,

Is 4 and the second slot

May be three.

일 수 있다. n denotes an index of a subcarrier for PUCCH format 1 / 1a / 1b transmission in one resource block (RB), and indicates PUCCH format 1 / 1a / 1b transmission in one resource block. The total number of subcarriers for the length of the sequence, for example

Lt; / RTI >

는 다음과 같이 정의될 수 있다. Sequence for scrambling in equation (3)

Can be defined as follows.

&Quot; (3) "

는 PUCCH가 매핑(mapping)되는 특정 서브프레임 각각에 대하여, 두 개의 슬롯으로 구성된 하나의 서브프레임의 두 개의 자원블록 내에서의 자원 인덱스(resource index)를 의미한다.At this time,

For each specific subframe to which the PUCCH is mapped, means a resource index in two resource blocks of one subframe composed of two slots.

는 수학식 4와 같이 정의되며, 상기 직교 시퀀스 인덱스

각각에 따른 직교 시퀀스

는 표 3에 표시한 바와 같이 길이

=4의 직교 시퀀스

를 사용할 수 있다. 수학식 4에서

과 N`는 상위단으로부터 혹은 시스템상으로 설정되어 상기 PUCCH format 1/1a/1b에서 사용되는 각종 파라메터 값에 이용된다.
Orthogonal sequence index in PUCCH formats 1a / 1b in general cases

Is defined as in Equation 4, and the orthogonal sequence index

Orthogonal sequences according to each

Is the length as shown in Table 3.

Orthogonal Sequence of = 4

Can be used. In equation (4)

And N` are set from the upper stage or on the system and used for various parameter values used in the PUCCH format 1 / 1a / 1b.

&Quot; (4) "

[Table 3]

각각에 따른 직교 시퀀스

는 표 4에 표시한 바와 같이 길이

=3의 직교 시퀀스

를 사용할 수 있다.
Meanwhile, in the shortened PUCCH format 1a / 1b in which the PUCCH is not allocated to the last symbol of the second slot of a subframe to allocate an uplink reference signal such as a sounding reference signal (SRS), the orthogonal sequence index

Orthogonal sequences according to each

Is the length as shown in Table 4.

Orthogonal sequence of = 3

Can be used.

[Table 4]

의 시퀀스 인덱스

를 수학식 4를 통해 얻어진 값에 의하여 표 3 또는 표 4의 0, 1, 2 중 하나로 선택할 수 있다. In other words, in order to transmit only ACK / NACK in PUCCH format 1a / 1b, an orthogonal sequence for spreading for each symbol allocated for PUCCH transmission of the first slot and the second slot

Sequence index

May be selected as one of 0, 1, and 2 of Table 3 or Table 4 based on the value obtained through Equation 4.

의 시퀀스 인덱스

는 동일하게 수학식 4와 같이 정의되며, 상기 시퀀스 인덱스

의 각각의 값에 따른 직교 시퀀스

는 역시 동일하게 표 3에서 보는 것과 같이 길이

=4의 직교 시퀀스를 사용할 수 있다. 반면에 두 번째 슬롯의 PUCCH 전송을 위해 할당된 각 심볼에 대하여 스프레딩을 위한 직교 시퀀스

의 시퀀스 인덱스

는 음(negative)의 SR, 즉 스케줄링 요청(SR)이 비존재(absent)할 경우에는 첫 번째 슬롯과 동일하게 직교 시퀀스

의 시퀀스 인덱스

를 수학식 4를 통해 얻어진 값에 의하여 표 3의 0, 1, 2 중 하나로 선택할 수 있다. 하지만 양(positive)의 SR, 즉 스케줄링 요청(SR)이 존재(present)할 경우에는 첫 번째 슬롯과는 달리 두 번째 슬롯의 PUCCH 전송을 위해 할당된 각 심볼에 대하여 스프레딩을 위한 직교 시퀀스

의 시퀀스 인덱스

는 수학식 5와 같이 정의될 수 있으며, 시퀀스 인덱스

의 각각의 값에 따른 직교 시퀀스

는 표 5에서 보는 것과 같이 길이

=4의 직교 시퀀스

를 사용할 수 있다.
In contrast, in the present invention, in general, orthogonality for spreading for each symbol allocated for PUCCH transmission of a first slot to transmit a scheduling request (SR) with ACK / NACK in PUCCH formats 1a / 1b. sequence

Sequence index

Is equally defined as Equation 4, and the sequence index

Orthogonal Sequences According to Each Value of

Equally the length as seen in Table 3

An orthogonal sequence of = 4 can be used. On the other hand, an orthogonal sequence for spreading for each symbol allocated for PUCCH transmission in the second slot

Sequence index

Is an orthogonal sequence equal to the first slot if the negative SR, i.e. the scheduling request (SR) is absent,

Sequence index

May be selected from one of 0, 1, and 2 in Table 3 based on the value obtained through Equation 4. However, if there is a positive SR, that is, a scheduling request (SR), present an orthogonal sequence for spreading for each symbol allocated for PUCCH transmission of the second slot unlike the first slot.

Sequence index

May be defined as Equation 5, and the sequence index

Orthogonal Sequences According to Each Value of

Length as shown in Table 5

Orthogonal Sequence of = 4

Can be used.

In this equation, m` is 0 or 1, m` = 0 means the first slot in one subframe, and m` = 1 means the second slot in one subframe. In addition, d (0) _SR is 0 or 1, and d (0) _SR = 0 means a negative SR, that is, a scheduling request (SR) is absent, and d (0) _SR = 1. In this case, this means that a positive SR, that is, a scheduling request SR is present.

일 때만 수학식 4의 직교 시퀀스(orthogonal sequence)

의 시퀀스 인덱스

값이 3만큼 증가하게 된다. 여기서 수학식 5는 두 번째 슬롯(m`=1)에서 SR이 존재할 경우(

)를 제외하고는 수학식 4와 동일한 값을 가지므로, 첫 번째 슬롯과 두 번째 슬롯의 두 가지 경우(SR이 존재할 때와 존재하지 않을 때) 모두에서 수학식 5의 의해서 시퀀스 인덱스

를 계산할 수 있다.In other words, according to equation 5, m` = 1

Only when the orthogonal sequence of equation (4)

Sequence index

The value is increased by three. Equation 5 is the case that the SR exists in the second slot ( m` = 1) (

Except), since it has the same value as Equation 4, the sequence index by Equation 5 in both the first slot and the second slot (with and without SR)

Can be calculated.

의 값이 첫 번째 슬롯과 동일하게 수학식 5에 의해서 표 3의 0, 1, 2 중 하나의 값을 가지고(범위(0, 1, 2 중 하나)만 동일한 것이지 그 값까지 똑같을 필요는 없다), 양(positive)의 SR인 경우에는 두 번째 슬롯에서의 시퀀스 인덱스

의 값이 첫 번째 슬롯과는 달리 수학식 5에 의해서 표 5의 3, 4, 5 중 하나의 값을 가지는 것으로 예시하였지만, 반대로 양(potive)의 SR인 경우에는 두 번째 슬롯에서의 시퀀스 인덱스

의 값이 첫 번째 슬롯과 동일하게 수학식 6이나 수학식 7에 의해서 표 3의 0,1, 2 중 하나의 값을 가지고(범위(0, 1, 2 중 하나)만 동일한 것이지 그 값까지 똑같을 필요는 없다), 음(negative)의 SR인 경우에는 두 번째 슬롯에서의 시퀀스 인덱스

의 값이 첫 번째 슬롯과는 달리 수학식 6이나 수학식 7에 의해서 표 5의 3, 4, 5 중 하나의 값을 가질 수도 있다.
In the example above, in the case of a negative SR, the sequence index in the second slot

The value of is equal to the first slot and has the same value as one of 0, 1 and 2 in Table 3 according to Equation 5 (the range (one of 0, 1, 2) is the same but need not be the same). , If it is a positive SR, the sequence index in the second slot

Unlike in the first slot, the value of is illustrated as having one of 3, 4, and 5 in Table 5 by Equation 5, but in the case of a positive SR, the sequence index in the second slot is

Equation 6 is equal to the first slot and has the same value as one of 0, 1 and 2 in Table 3 (Equation 6 or 7) according to Equation 6 or Equation 7 Need not)), if it is a negative SR, the sequence index in the second slot

Unlike the first slot, may have a value of 3, 4, or 5 in Table 5 by Equation 6 or Equation 7.

[Equation 5]

&Quot; (6) "

[Equation 7]

[Table 5]

의 시퀀스 인덱스

는 앞서 일반적인 경우에서 설명한 것과 동일하게 수학식 5와 같이 정의된다. 하지만 상기 시퀀스 인덱스

의 각각의 값에 따른 직교 시퀀스

는 첫 번째 슬롯의 경우 일반적인 경우와 동일하지만, 두 번째 슬롯의 경우 길이가

=3으로써 일반적인 경우보다 더 짧은 직교 시퀀스를 사용하게 된다. 따라서 앞서 일반적인 경우에서 설명된 것과 비교하여, 첫 번째 슬롯에서는 표 3이 표 4로 대체된다. 또한 두 번째 슬롯에서 SR의 존재 유무에 따라 표 3은 표 4로 대체되며, 표 5는 아래 표 6으로 대체된다.
Meanwhile, in order to allocate an uplink reference signal such as a sounding reference signal (SRS) together with ACK / NACK in a shortened PUCCH format 1a / 1b that does not allocate a PUCCH to the last symbol of the second slot of a subframe. In order to send the scheduling request (SR), orthogonal sequence

Sequence index

Is defined as in Equation 5 in the same manner as described above in the general case. But the sequence index above

Orthogonal Sequences According to Each Value of

Is the same as for the first slot, but for the second slot,

= 3 uses shorter orthogonal sequences than usual. Thus, Table 3 is replaced by Table 4 in the first slot, compared to that described in the general case above. In addition, according to the presence of the SR in the second slot, Table 3 is replaced by Table 4, Table 5 is replaced by Table 6 below.

TABLE 6

) 혹은 두 개의 코드워드로부터 각각 1비트씩 총 HARQ-ACK/NACK 2비트(

)를 직접 구성할 수 있다. 이 HARQ-ACK/NACK 비트(들)은 변조부(130)에 의해 BPSK 혹은 QPSK 변조되어 복소심볼(complex-valued symbol) d(0)로 변환된다. Referring back to FIG. 1, the uplink control information is a bit value of 1 for ACK, which is positive ACK for PUCCH format 1 / 1a / 1b, and 0 for NACK, which is negative ACK. 1 bit of HARQ-ACK / NACK from one codeword (

) Or 2 bits of total HARQ-ACK / NACK (1 bit each from 2 codewords)

) Can be configured directly. The HARQ-ACK / NACK bit (s) are BPSK or QPSK modulated by the modulator 130 and converted into a complex-valued symbol d (0).

와 곱하여진다(multiplied). The complex symbol d (0) by the resource allocator 140 is a cyclic delayed length 12 sequence for each of the P antenna ports used for PUCCH transmission as shown in Equation 1 below.

Multiplied with.

와 곱해진(multiplied) 복소심볼(complex-valued symbol)의 블록(block)

는 수학식 2와 같이 시퀀스

로 스크램블링(scrambling)되며, 안테나포트 별로 특정되게 정의되는(antenna-port specific) 직교 시퀀스(orthogonal sequence, 혹은OCC(Orthogonal Cover Code))

로 스프레딩(spreading)된다.
Sequence

Block of complex-valued symbols multiplied with

Is a sequence as shown in Equation 2

Scrambling, orthogonal sequence, or Orthogonal Cover Code (OCC), which is antenna-specific.

Spreading to

A block of complex symbols spread by this orthogonal sequence is allocated to four OFDM symbols out of seven OFDM symbols in the case of normal CP and uplink channel estimation to the remaining three OFDM symbols. Reference signals, such as a demodulation reference signal (DM-RS), may be allocated. In the case of an extended CP, four OFDM symbols among six OFDM symbols are allocated, and the remaining two OFDM symbols are allocated reference signals such as DM-RS for uplink channel estimation. Can be. Meanwhile, in the shortened PUCCH format 1a / 1b in which the PUCCH is not allocated to the last symbol of the second slot of the subframe for allocating an uplink reference signal such as a sounding reference signal (SRS), in the above case In the first slot, blocks of complex symbols spread in four OFDM symbols are allocated in the same manner as in the general case, whereas in the second slot, blocks of complex symbols spread in three OFDM symbols are allocated in the second slot. Can be. Since the method of allocating the reference signals is substantially the same as the method of allocating the control information of the present specification, a detailed description thereof is omitted, but forms part of the present specification.

만큼의 직교한 자원을 전송할 수가 있다. 이 때, c는 직교 시퀀스

의 개수에 기인하는 값이며, 일반적인 CP의 경우 3이고 확장된 CP의 경우 2이다. 이는 직교성을 가지는 시간 상의 직교 시퀀스가 최대 3개 혹은 2개임을 의미한다. In summary, for each specific subframe to which the PUCCH is mapped, the maximum is within two resource blocks (RBs) of one subframe consisting of two slots.

You can send as many orthogonal resources. Where c is an orthogonal sequence

The value is due to the number of times, which is 3 for a typical CP and 2 for an extended CP. This means that at most three or two orthogonal sequences in time have orthogonality.

는

만큼 순환지연(cyclic shift)된 CAZAC(Constant Amplitude Zero Auto-Correlation) 시퀀스(sequence)의 길이

에 상응한다. 이는 직교성을 가지는 주파수(frequence) 상의CAZAC 시퀀스의 개수가 최대 12개임을 의미한다.

는 시스템 상위단에 의해서 1, 2, 혹은 3의 값을 가진다. 이를 통해 직교 자원의 개수

중에서

의 간격을 가지고

만큼을 사용하는 것을 의미한다. 최대 가능한 직교 자원의 개수

를 통해 PUCCH가 매핑(mapping)되는 특정 서브프레임 각각에 대하여, 두 개의 슬롯으로 구성된 하나의 서브프레임의 두 개의 자원블록(RB) 내에서 최대

만큼의 사용자 단말(UE)과 각 사용자 단말(UE) 내의 안테나 포트를 직교성을 가지고 동시에 전송할 수가 있다.Also

The

Length of the cyclically shifted constant amplitude zero auto-correlation (CAZAC) sequence

≪ / RTI > This means that the maximum number of CAZAC sequences on a frequency having orthogonality is 12.

Has a value of 1, 2, or 3 depending on the system upstream. This allows the number of orthogonal resources

Between

Have a gap of

Means to use as much. Maximum possible orthogonal resources

For each specific subframe to which the PUCCH is mapped, the maximum number is within two resource blocks (RBs) of one subframe consisting of two slots.

As many UEs and antenna ports in each UE can be transmitted simultaneously as orthogonal.

Therefore, a total of 2 (for scheduling request) ⅹ 4 (PUCCH format 1b ACK / NACK) in order to simultaneously transmit a total of 2 cases for a scheduling request and 4 cases (or 2 cases) for ACK / NACK are transmitted separately. In the case of) = 8 or 2 (for scheduling request) ⅹ 2 (for ACK / NACK of PUCCH format 1a) = 4 must be considered at the same time. In other words, the number of cases to be considered is doubled to simultaneously transmit a scheduling request with ACK / NACK.

의 개수에 기인하는 c 값을 2배로 늘리는 방법을 사용할 수가 있다. 즉 PUCCH 포맷 1a/1b에서 ACK/NACK과 함께 스케줄링 요청(SR)을 전송하기 위해서는 직교 시퀀스

의 개수를 2배로 늘려야 한다. 이를 위해서는 일반적인 경우, 아래 표 7과 같이 길이

의 직교 시퀀스

를 사용할 수가 있다. 기존의 ANK/NACK만을 전송하는 경우에서는 표 3과 같이 4가지의 길이

의 직교 시퀀스 중 3가지를 사용했다면, 직교 시퀀스

의 개수를 2배인 6으로 늘리기 위해서 표 7과 같이 8가지의 길이

의 직교 시퀀스

중 6가지를 사용하는 것이다.
For this, an orthogonal sequence

You can use the method of doubling the value of c due to the number of. That is, to transmit a scheduling request (SR) with ACK / NACK in PUCCH format 1a / 1b, orthogonal sequence

The number of must be doubled. For this purpose, the general case, as shown in Table 7 below

Orthogonal Sequence of

You can use In case of transmitting only conventional ANK / NACK, four lengths are shown in Table 3.

Orthogonal Sequence of If you used three of the orthogonal sequences

To increase the number of times to 6, double the lengths as shown in Table 7.

Orthogonal Sequence of

Six of them are used.

[Table 7]

의 개수를 2배로 늘려야 하며, 이를 위해서는 기존의 ANK/NACK만을 전송하는 경우에서는 표 4와 같이

의 직교 시퀀스

를 사용했다면, 직교 시퀀스

의 개수를 2배로 늘리기 위해서 아래 표 8과 같이 길이

의 직교 시퀀스

를 사용할 수가 있다.
Meanwhile, in order to allocate an uplink reference signal such as a sounding reference signal (SRS) together with ACK / NACK in a shortened PUCCH format 1a / 1b that does not allocate a PUCCH to the last symbol of the second slot of a subframe. Orthogonal sequence also for sending a scheduling request (SR)

The number of times should be doubled. For this purpose, if only the existing ANK / NACK is transmitted,

Orthogonal Sequence of

If you used, orthogonal sequence

To double the number of lengths as shown in Table 8 below

Orthogonal Sequence of

You can use

[Table 8]

의 시퀀스 인덱스

값을 표 3에서 0, 1, 또는 2 중 하나로 선택할 수 있다. (구체적으로 일반(normal) CP의 경우 시퀀스 인덱스

값은 표 3의 0, 1, 2의 3가지 중 하나이며 (따라서 c=3이다), 확장된(extended) CP의 경우 시퀀스 인덱스

값은 표 3의 0, 2의 2가지 중 하나이다 (따라서 c=2이다)).As described above, in general, transmitting only ACK / NACK in PUCCH format 1a / 1b. Orthogonal sequence for spreading for each symbol allocated for PUCCH transmission of the first slot and the second slot.

Sequence index

The value can be selected from 0, 1, or 2 in Table 3. (Specifically, sequence index for normal CP

The value is one of three of 0, 1, and 2 in Table 3 (and therefore c = 3), and the sequence index for extended CPs.

The value is one of two of 0 and 2 in Table 3 (thus c = 2).

의 시퀀스 인덱스

값을 표 3의 0, 1, 또는 2 중 하나로 선택한다. 반면에, 두 번째 슬롯의 PUCCH 전송을 위해 할당된 각 심볼에 대하여 스프레딩을 위한 직교 시퀀스

의 시퀀스 인덱스

는 음(negative)의 SR, 즉 스케줄링 요청(SR)이 비존재(absent)할 경우에는 첫 번째 슬롯과 동일하게 직교 시퀀스

의 시퀀스 인덱스

를 표 3의 0, 1, 2 중 하나로 선택할 수 있다. 하지만 양(positive)의 SR, 즉 스케줄링 요청(SR)이 존재(present)할 경우에는 첫 번째 슬롯과는 달리 두 번째 슬롯의 PUCCH 전송을 위해 할당된 각 심볼에 대하여 스프레딩를 위한 직교 시퀀스

의 시퀀스 인덱스

값을 표 5 의 3, 4, 또는 5 중 하나로 선택할 수 있다. (앞에서 전술한 바와 같이, 두 번째 슬롯에서 반대로 양(positive)의 SR인 경우에는 첫 번째 슬롯과 동일하게 직교 시퀀스

의 시퀀스 인덱스

를 표 3의 0, 1, 2 중 하나로 선택하며, 음(negative)의 SR인 경우에는 첫 번째 슬롯는 달리

의 시퀀스 인덱스

값을 표 5의 3, 4, 또는 5 중 하나로 선택할 수도 있다.)Meanwhile, in a general case, an orthogonal sequence for spreading for each symbol allocated for PUCCH transmission of the first slot to transmit a scheduling request with ACK / NACK in PUCCH formats 1a / 1b.

Sequence index

Choose a value from 0, 1, or 2 in Table 3. On the other hand, an orthogonal sequence for spreading for each symbol allocated for PUCCH transmission of the second slot

Sequence index

Is an orthogonal sequence equal to the first slot if the negative SR, i.e. the scheduling request (SR) is absent,

Sequence index

Can be selected from 0, 1, 2 in Table 3. However, if there is a positive SR, that is, a scheduling request (SR), the orthogonal sequence for spreading for each symbol allocated for PUCCH transmission of the second slot, unlike the first slot, is present.

Sequence index

The value can be selected from 3, 4, or 5 in Table 5. (As mentioned above, in the case of positive SRs inversely from the second slot, an orthogonal sequence equals to the first slot.

Sequence index

Is selected as one of 0, 1, and 2 in Table 3, and for a negative SR, the first slot is different.

Sequence index

You can select the value from 3, 4, or 5 in Table 5.)

Thus, one of the orthogonal sequences of length 4 in Table 3 is used for spreading in the first slot, and one of the orthogonal sequences of length 4 in Table 3 is used in the second slot, depending on the presence or absence of the SR. One of the orthogonal sequences of length 4 in Table 5 is used. In terms of the entire subframe including the first slot and the second slot, it can be expressed as using six orthogonal sequences of length 8 as shown in Table 9, which is defined to double the aforementioned c value. 6 of 8 orthogonal sequences of 8 lengths in Table 7.

TABLE 9

의 시퀀스 인덱스

값을 표 4의 0, 1, 또는 2 중 하나로 선택할 수 있다. (구체적으로 일반(normal) CP의 경우 시퀀스 인덱스

값은 표 4의 0, 1, 2의 3가지 중 하나이며 (따라서 c=3이다), 확장된(extended) CP의 경우 시퀀스 인덱스

값은 표 4의 0, 2의 2가지 중 하나이다 (따라서 c=2이다)).ACK / NACK in a shortened PUCCH format 1a / 1b that does not allocate a PUCCH to the last symbol of the second slot of a subframe to allocate an uplink reference signal such as a sounding reference signal (SRS) as described above. Orthogonal Sequence for Spreading for Each Symbol Assigned for PUCCH Transmission of Second Slot to Transmit Only

Sequence index

The value can be selected from 0, 1, or 2 in Table 4. (Specifically, sequence index for normal CP

The value is one of three (0, 1, 2) in Table 4 (hence c = 3), and the sequence index for extended CP

The value is one of two of 0 and 2 in Table 4 (thus c = 2).

의 시퀀스 인덱스

값을 표 4의 0, 1, 또는 2 중 하나로 선택한다. 반면에, 두 번째 슬롯의 PUCCH 전송을 위해 할당된 각 심볼에 대하여 스프레딩을 위한 직교 시퀀스

의 시퀀스 인덱스

는 음(negative)의 SR, 즉 스케줄링 요청(SR)이 비존재(absent)할 경우에는 첫 번째 슬롯과 동일하게 직교 시퀀스

의 시퀀스 인덱스

를 표 4의 0, 1, 2 중 하나로 선택할 수 있다. 하지만 양(positive)의 SR, 즉 스케줄링 요청(SR)이 존재(present)할 경우에는 첫 번째 슬롯과는 달리 두 번째 슬롯의 PUCCH 전송을 위해 할당된 각 심볼에 대하여 스프레딩를 위한 직교 시퀀스

의 시퀀스 인덱스

값을 표 6 의 3, 4, 또는 5 중 하나로 선택할 수 있다. (앞에서 전술한 바와 같이, 두 번째 슬롯에서 반대로 양(positive)의 SR인 경우에는 첫 번째 슬롯과 동일하게 직교 시퀀스

의 시퀀스 인덱스

를 표 4의 0, 1, 2 중 하나로 선택하며, 음(negative)의 SR인 경우에는 첫 번째 슬롯는 달리

의 시퀀스 인덱스

값을 표 6의 3, 4, 또는 5 중 하나로 선택할 수도 있다.)Meanwhile, in order to allocate an uplink reference signal such as a sounding reference signal (SRS) together with ACK / NACK in a shortened PUCCH format 1a / 1b that does not allocate a PUCCH to the last symbol of the second slot of a subframe. Orthogonal Sequence for Spreading for Each Symbol Assigned for PUCCH Transmission of the First Slot to Send a Scheduling Request

Sequence index

Choose a value from 0, 1, or 2 in Table 4. On the other hand, an orthogonal sequence for spreading for each symbol allocated for PUCCH transmission of the second slot

Sequence index

Is an orthogonal sequence equal to the first slot if the negative SR, i.e. the scheduling request (SR) is absent,

Sequence index

Can be selected from 0, 1, and 2 in Table 4. However, if there is a positive SR, that is, a scheduling request (SR), the orthogonal sequence for spreading for each symbol allocated for PUCCH transmission of the second slot, unlike the first slot, is present.

Sequence index

The value can be selected from 3, 4, or 5 in Table 6. (As mentioned above, in the case of positive SRs inversely from the second slot, an orthogonal sequence equals to the first slot.

Sequence index

Is selected from 0, 1, or 2 in Table 4, and for a negative SR, the first slot is different.

Sequence index

You can choose the value from 3, 4, or 5 in Table 6.)

Thus, one of the orthogonal sequences of length 3 in Table 4 is used for spreading in the first slot, and one of the orthogonal sequences of length 3 in Table 4 is used in the second slot, depending on the presence or absence of the SR. One of the orthogonal sequences of length 3 in Table 6 is used. In terms of the entire subframe unit including the first slot and the second slot, it can be expressed by using six orthogonal sequences of length 6 as shown in Table 10, which is defined to double the c value mentioned above. Table 6 corresponds to the orthogonal sequence of 6 lengths.

[Table 10]

와 두 번째 슬롯에서 스프레딩을 위한 직교 시퀀스

은 서로 직교성이 유지되지 않을 수도 있다. In this case, when transmitting SR with ACK / NACK in PUCCH format 1a / 1b, the first slot of Table 9 (including Tables 3 and 5) or Table 10 (including Tables 4 and 6) is used for spreading. Orthogonal Sequence

Orthogonal Sequence for Spreading in Slots and Second Slots

May not be orthogonal to each other.

For example, if the orthogonal sequence for spreading in the first slot is one of the three values in Table 3, orthogonality is maintained when the orthogonal sequence for spreading in the second slot is also the other value in Table 3. .

은 표 3에서 보는 것과 같이 시퀀스 인덱스 값이 1인 직교 시퀀스

의 각각의 시퀀스 값들에 -1을 곱한 것이 된다. However, orthogonality is not maintained when the orthogonal sequence for spreading in the second slot is one of the three values in Table 5. At this time, although orthogonality is not completely maintained, orthogonal sequences having a sequence index value of 3 differ from each other by as much as 180 degrees with respect to each other. That is, multiplying sequence values of orthogonal sequences having sequence index values of 0, 1, and 2 by -1 (180 degree phase shift) results in orthogonal sequences having sequence indexes of 3, 4, and 5, respectively. For example, an orthogonal sequence with a sequence index value of 4, as shown in Table 5

Is an orthogonal sequence with a sequence index value of 1, as shown in Table 3.

Each sequence of times is multiplied by -1.

However, as shown in Table 9 or Table 10, orthogonal sequences in one subframe including the first and second slots (orthogonal sequences of length 8 as shown in Table 9 or as shown in Table 10) Orthogonal sequences of length 6) remain orthogonal to one another. Therefore, it is possible to maintain orthogonality as in the case of sending only ACK / NACK.

값이 표 9(또는 표 10)에서 보는 것과 같이 표 3(또는 표 4)에서 기인한 0~2인지 혹은 표 5(또는 표6)에서 기안한 3~5인지에 따라 ACK/NACK만을 수신하였는지 아니면 ACK/NACK과 함께 스케줄링 요청을 수신하였는지 알 수 있다.As a result, the base station receiving the PUCCH receives the sequence index of the second slot of the corresponding PUCCH format.

Received only ACK / NACK depending on whether the value is 0-2 due to Table 3 (or Table 4) as shown in Table 9 (or Table 10) or 3 to 5 as drafted in Table 5 (or Table 6). Otherwise, it may be determined whether the scheduling request is received together with the ACK / NACK.

에 대하여, 첫 번째 슬롯에서 직교 시퀀스의 각각의 시퀀스 값

은 표 3(또는 표 4)의 시퀀스 인덱스가 0, 1, 또는 2인 직교 시퀀스로부터 구해지며, 두 번째 슬롯에서의 직교 시퀀스의 각각의 시퀀스 값

은 SR의 유무에 따라 표 3(또는 표 4)의 시퀀스 인덱스가 0, 1, 또는 2인 직교 시퀀스로부터 구해지거나 표 5(또는 표 6)의 시퀀스 인덱스가 3, 4, 또는 5인 직교 시퀀스로부터 구해진다.That is, orthogonal sequence as shown in Fig. 1 and 2

For each orthogonal sequence in the first slot

Is obtained from an orthogonal sequence having a sequence index of 0, 1, or 2 in Table 3 (or Table 4), and each sequence value of the orthogonal sequence in the second slot

Is obtained from an orthogonal sequence having a sequence index of 0, 1, or 2 in Table 3 (or Table 4) depending on the presence or absence of an SR, or from an orthogonal sequence having a sequence index of 3, 4, or 5 in Table 5 (or Table 6). Is saved.

3 is a configuration diagram of an uplink control channel according to another embodiment when having a normal CP. Although FIG. 3 illustrates only a case of having a normal CP, it may be applied to a case of having an extended CP as shown in FIG. 2.

Referring to FIG. 3, the terminal 300 includes a channel coder 110, a scrambler 120, a modulator 130, and a resource allocator 340.

However, the uplink control channel may not include the channel coding unit 110 and the scrambler 120 according to the configuration format of the PUCCH, as mentioned in the foregoing description of FIGS. 1 and 2.

Referring to FIG. 3, the uplink control information is modulated into a complex-valued symbol d (0) by the modulator 130 in the same manner as described above with reference to FIGS. 1 and 2.

와 곱하여진다(multiplied). The complex symbol d (0) by the resource allocating unit 340 is a cyclic delay for each of the P antenna ports used for PUCCH transmission as shown in Equation 1 as described above with reference to FIGS. 1 and 2. -shifted 12-length sequence

Multiplied with.

와 곱해진(multiplied) 복소심볼(complex-valued symbol)의 블록(block)

는 수학식 8 혹은 수학식 9와 같이 시퀀스

로 스크램블링(scrambling)되며, 안테나포트 별로 특정되게 정의되는(antenna-port specific) 직교 시퀀스(orthogonal sequence, 혹은 OCC(Orthogonal Cover Code))

로 스프레딩(spreading)된다Sequence

Block of complex-valued symbols multiplied with

Is a sequence as in Equation 8 or Equation 9

Scrambling, orthogonal sequence (Orthogonal Cover Code (OCC)), defined as antenna-port specific

Is spreading

 [Equation 8]

&Quot; (9) "

혹은

가 더 첨부된 것을 제외하고는 동일하다. 수학식 8에서의 각 파라메터 값들은 수학식 2 내지 수학식 5에서 설명한 바와 동일하다. 한편 m`=0 또는 1로써 m`=0이면 하나의 서브프레임 내에서 첫 번째 슬롯을 의미하며, m`=1이며 하나의 서브프레임 내에서 두 번째 슬롯을 의미한다.

는 스케줄링 요청 전송을 위한 복소 심볼(complex-valued symbol)로써 스케줄링 요청이 존재(presence)할 때, 즉 양(positive) SR일 경우에는

, 스케줄링 요청이 존재하지 않을 때, 즉 음(negative) SR일 경우에는

으로 설정한다. (반대로 음(negative) SR일 경우에는

, 양(potive) SR일 경우에는

으로 설정할 수도 있다.)Equation 8 or 9 compared with Equation 2

or

The same is true except that is further attached. Each parameter value in Equation 8 is the same as described in Equations 2 to 5. On the other hand, if m` = 0 or 1 and m` = 0, this means the first slot in one subframe, and m` = 1 and means a second slot in one subframe.

Is a complex-valued symbol for the transmission of a scheduling request, when a scheduling request is present, i.e. a positive SR.

When there is no scheduling request, i.e. it is a negative SR

. (In contrast, if it's a negative SR,

, If it's a positive SR

It can also be set.)

(또는

)을 살펴 볼 때, 첫 번째 슬롯에서는

(또는

)은 무조건 1의 값을 가지게 되며, 두 번째 슬롯에서는 SR의 존재 유무에 따라 1 또는 -1의 값을 가지게 된다. 여기서

(또는

)이 1의 값을 가지는 경우는 직교 시퀀스

의 시퀀스 인덱스 값이 표 3 이나 표 4에서의 0, 1, 2 중 하나 일 때와 대응되며,

(또는

)이 -1의 값을 가지는 경우는 직교 시퀀스

의 시퀀스 인덱스 값이 표 5나 표 6에서의 3, 4, 5 중 하나 일 때와 대응된다. 왜냐하면, 앞서 설명한 바와 같이 시퀀스 인덱스 값이 각각 0, 1, 2인 직교 시퀀스(표 3이나 표 4의 직교 시퀀스)의 각각의 시퀀스 값들에-1(180도 위상 변화)을 곱하면 시퀀스 인덱스 값이 각각 3, 4, 5인 직교 시퀀스(표 5나 표 6의 직교 시퀀스)의 각각의 시퀀스 값들이 되기 때문이다. 즉 수학식 8에서

에

(또는

)을 통해 -1을 곱해주는 것(=180도 위상변화)은 직교 시퀀스

의 시퀀스 인덱스

값이 3만큼 증가하는 효과와 동일한 효과를 가지게 된다.Therefore, in comparison with Equation 2, Equation 8 (or Equation 9)

(or

), In the first slot,

(or

) Has a value of 1 unconditionally, and has a value of 1 or -1 in the second slot depending on the existence of an SR. here

(or

Or) is a 1 orthogonal sequence

Corresponds to when the sequence index value of is one of 0, 1, 2 in Table 3 or Table 4,

(or

Orthogonal sequence if) has a value of -1.

It corresponds to when the sequence index value of is one of 3, 4, 5 in Table 5 or Table 6. Because, as described above, multiplying each sequence value of an orthogonal sequence (orthogonal sequence of Table 3 or Table 4) having a sequence index value of 0, 1, and 2 by -1 (180 degree phase shift) yields a sequence index value. This is because the respective sequence values of orthogonal sequences (orthogonal sequences of Table 5 or Table 6) of 3, 4, and 5 are respectively. In Equation 8

on

(or

Multiplying by -1 through () is a quadrature sequence

Sequence index

It has the same effect as the value increases by 3.

값은 첫 번째 슬롯에서는 표 3(혹은 표 4)에 해당하는0, 1, 2 중 하나이며, 두 번째 슬롯에서는 SR의 유무에 따라 표 3(혹은 표 4)에 해당하는 0, 1, 2 중 하나이거나 또는 표 5(혹은 표 6)에 해당하는 3, 4, 5 중 하나이며, 이를 통해 직교 시퀀스

를 구한다. 그리고 이 직교 시퀀스

는 수학식 2에 의하여 스프레딩(spreading)이 된다.1 and 2, the sequence index obtained through Equation 5 (or Equation 6 and Equation 7).

The value is one of 0, 1 and 2 corresponding to Table 3 (or Table 4) in the first slot, and 0, 1 and 2 corresponding to Table 3 (or Table 4) in the second slot depending on the presence of SR. One or one of 3, 4, or 5 corresponding to Table 5 (or Table 6), thereby allowing orthogonal sequences

. And this orthogonal sequence

Is spreading by equation (2).

값은 첫 번째 슬롯에서도 3(혹은 표 4)에 해당하는 0, 1, 2 중 하나이며 두 번째 슬롯에서도 3(혹은 표 4)에 해당하는 0, 1, 2 중 하나이며. 이를 통해 직교 시퀀스

를 구한다. 그리고 이 직교 시퀀스

는 수학식 8(혹은 수학식 9)에 의하여 스프레딩(spreading)이 되는데 이 때, 첫 번째 슬롯에서는

이 그대로 적용되나, 두 번째 슬롯에서는 SR의 유무의 따라

이 그대로 적용되거나(이는

에 1의 값이 곱해진 것과 동일) 혹은 -1의 값이 곱해지게 된다.In addition, in the case of FIG. 3 (FIG. 3 of FIG. 3 illustrates only the case of having a normal CP, but also includes the case of having an extended CP), the sequence index obtained through Equation 4

The value is one of 0, 1, or 2, corresponding to 3 (or Table 4) in the first slot, and one of 0, 1, or 2 corresponding to 3 (or Table 4) in the second slot. This allows orthogonal sequences

. And this orthogonal sequence

Is spreading by Equation 8 (or Equation 9), in which the first slot

This is the same, but with the presence or absence of SR in the second slot

Is applied as is (this

Is equal to 1 multiplied by) or -1.

에 대하여, 첫 번째 슬롯에서 직교 시퀀스의 각각의 시퀀스 값

은 표 3(또는 표 4)의 시퀀스 인덱스가 0, 1, 또는 2인 직교 시퀀스로부터 구해지며, 두 번째 슬롯에서의 직교 시퀀스의 각각의 시퀀스 값

역시 표 3(또는 표 4)의 시퀀스 인덱스가 0, 1, 또는 2인 직교 시퀀스로부터 구해진다. 하지만 두 번째 슬롯에서는 SR의 유무에 따라 1이나 혹은 -1의 값이 추가적으로 곱해지게 된다.That is, orthogonal sequence as shown in Figure 3

For each orthogonal sequence in the first slot

Is obtained from an orthogonal sequence having a sequence index of 0, 1, or 2 in Table 3 (or Table 4), and each sequence value of the orthogonal sequence in the second slot

Again from an orthogonal sequence whose sequence index in Table 3 (or Table 4) is 0, 1, or 2. In the second slot, however, the value of 1 or -1 is multiplied by the presence of SR.

의 시퀀스 인덱스

는 ACK/NACK만을 전송할 때와 동일하게 특정 직교 시퀀스 그룹(예를 들어 표3(혹은 표4)의 시퀀스 인덱스 0, 1, 2에 해당하는 직교 시퀀스) 중에서 하나를 선택하며, 두 번째 슬롯에서 PUCCH 전송을 위해 할당된 각 심볼에 대하여 스프레딩을 위한 직교 시퀀스

의 시퀀스 인덱스

는 SR의 존재 유무에 따라서 첫 번째 슬롯에서와 동일한 직교 시퀀스 그룹(예를 들어 표3(혹은 표4)의 시퀀스 인덱스0, 1, 2에 해당하는 직교 시퀀스) 중에서 하나를 선택하거나 혹은 첫 번째 슬롯과는 다른 직교 시퀀스 그룹(예를 들어 표5(혹은 표6)의 시퀀스 인덱스 3, 4, 5에 해당하는 직교 시퀀스) 중에서 하나를 선택하는 것으로 설명하였다. 1 to 3, in order to simultaneously transmit a scheduling request (SR) with ACK / NACK in PUCCH format 1a / 1b, orthogonality for spreading for each symbol allocated for PUCCH transmission in the first slot sequence

Sequence index

Selects one of a specific orthogonal sequence group (for example, an orthogonal sequence corresponding to sequence indexes 0, 1, and 2 of Table 3 (or Table 4)) as in transmitting only ACK / NACK, and PUCCH in the second slot. Orthogonal Sequence for Spreading for Each Symbol Assigned for Transmission

Sequence index

Select one of the same orthogonal sequence groups (eg, orthogonal sequences corresponding to sequence indexes 0, 1, and 2 in Table 3 (or Table 4)) according to the presence or absence of the SR, or the first slot. It is described by selecting one from another orthogonal sequence group (eg, an orthogonal sequence corresponding to sequence indexes 3, 4, and 5 of Table 5 (or Table 6)).

Although not shown in FIGS. 1 to 3, the above-described blocks of the complex symbols are scrambled into a scrambling sequence, spread into an orthogonal sequence, and mapped to a time-frequency resource, and then mapped. The user terminal generates a signal from the received time-frequency resource and transmits it to the base station (eNodeB).

와 시퀀스 인덱스

를 아래 표 11과 같이 구성할 수가 있다. In another embodiment, when using an extended CP, the first slot and the second in order to transmit only the ACK / NACK in the PUCCH format 1a / 1b, or to send a scheduling request (SR) with the ACK / NACK in the general case Orthogonal Sequence for Spreading for Each Symbol Assigned for PUCCH Transmission in Slot

And sequence index

Can be configured as shown in Table 11 below.

TABLE 11

값은 일반(normal) CP의 경우 표 3의0, 1, 2의 3가지 중 하나이며 (c=3), 확장된(extended) CP의 경우 표 의0, 2의 2가지 중 하나이다 (c=2). 즉 확장된 CP의 경우 표 11에서 보는 것과 같은 길이 4를 가지는 4가지의 직교시퀀스들 중에서 2 가지(시퀀스 인덱스가 0과 2인 직교 시퀀스)만 사용하며 나머지 2가지(시퀀스 인덱스가 1과 3인 직교 시퀀스)는 사용하지 않는다. 따라서 확장된(extended) CP의 경우 사용하지 않는 2가지의 직교 시퀀스를 통해서 ACK/NACK뿐만 아니라 스케줄링 요청(SR)도 동시에 할 수 있게 된다.As we discussed earlier, the sequence index of the orthogonal sequence selectable in Table 3

The value is one of three of 0, 1 and 2 of Table 3 for normal CP (c = 3), and one of two of 0 and 2 of table for extended CP (c = 2). That is, in case of the extended CP, only two of four orthogonal sequences having a length of four as shown in Table 11 (orthogonal sequences having sequence indices of 0 and 2) are used, and the other two (sequence indices of 1 and 3). Orthogonal sequences) are not used. Accordingly, in the case of an extended CP, two orthogonal sequences not used can simultaneously perform scheduling request (SR) as well as ACK / NACK.

의 시퀀스 인덱스

값을 표 11에서 제 1 직교 시퀀스 그룹(시퀀스 인덱스가 0 또는 2)에 속하는 직교 시퀀스들 중에서 하나로 선택할 수 있었다.For example, in Table 11, if orthogonal sequences corresponding to a sequence index value of 0 or 2 are called first orthogonal sequence groups, and orthogonal sequences corresponding to a sequence index value of 1 or 3 are referred to as a second orthogonal sequence group, Orthogonal sequence for spreading for each symbol allocated for PUCCH transmission in the first slot and the second slot in PUCCH format 1a / 1b when transmitting only ACK / NACK

Sequence index

In Table 11, one of the orthogonal sequences belonging to the first orthogonal sequence group (sequence index 0 or 2) may be selected.

의 시퀀스 인덱스

값은 SR의 존재 유무에 따라서 표 11의 제 1 직교 시퀀스 그룹(시퀀스 인덱스가 0 또는 2) 혹은 제 2 시퀀스 그룹(시퀀스 인덱스가 1 또는 3)에 속하는 직교 시퀀스들 중에서 하나로 선택할 수 있다. 즉 스케줄링 요청이 존재하지 않을(absent) 때, 즉 음(negative) SR일 경우에는 제 1 직교 시퀀스 그룹에 속하는 직교 시퀀스들 중에서 하나를, 스케줄링 요청이 존재(present)할 때, 즉 양(positive) SR일 경우에는 제 2 직교 시퀀스 그룹에 속하는 직교 시퀀스들 중에서 하나를 선택할 수 있는 것이다. (반대로 양(positive) SR일 경우에는 제 1 직교 시퀀스 그룹에 속하는 직교 시퀀스들 중에서 하나를, 음(negative) SR일 경우에는 제 2 직교 시퀀스 그룹에 속하는 직교 시퀀스들 중에서 하나를 선택할 수도 있다.)On the other hand, orthogonal sequences for spreading for each symbol allocated for PUCCH transmission in the first slot and the second slot to simultaneously transmit a scheduling request (SR) with ACK / NACK.

Sequence index

The value may be selected from among orthogonal sequences belonging to the first orthogonal sequence group (sequence index is 0 or 2) or the second sequence group (sequence index is 1 or 3) of Table 11, depending on the presence or absence of the SR. That is, when a scheduling request is absent, i.e., a negative SR, one of the orthogonal sequences belonging to the first orthogonal sequence group, when the scheduling request is present, i.e. positive In the case of SR, one of orthogonal sequences belonging to the second orthogonal sequence group may be selected. (On the contrary, one of orthogonal sequences belonging to the first orthogonal sequence group may be selected in the case of a positive SR, and one of orthogonal sequences belonging to the second orthogonal sequence group may be selected in the case of a negative SR.

값이 표 11의 0 또는 2에 해당하는 직교 시퀀스

로 스프레딩 하였는지 아니면 시퀀스 인덱스

값이 표 11의 1 또는 3에 해당하는 직교 시퀀스

로 스프레딩 하였는지에 따라 ACK/NACK만을 수신하였는지(이 경우 SR은 음(negative)의 SR) 아니면 ACK/NACK과 함께 스케줄링 요청을 수신하였는지(이 경우 SR은 양(positive) 의 SR)를 알 수 있다.Therefore, the base station receiving the PUCCH has a sequence index for the first slot and the second slot of the corresponding PUCCH format.

Orthogonal sequences whose values correspond to 0 or 2 in Table 11.

Spread to or sequence index

Orthogonal sequences whose values correspond to 1 or 3 in Table 11.

It can be determined whether only ACK / NACK was received (in this case, SR is negative SR) or scheduling request was received with ACK / NACK (SR is positive SR in this case). .

4 is a flowchart of signals of a base station and a terminal according to another embodiment.

Referring to FIG. 4, a wireless communication system widely deployed to provide various communication services such as voice and packet data includes a base station (410 Base Station, BS, or eNodeB) and a user terminal (420 User Equipment, UE). .

A base station 410 or a cell generally refers to a station communicating with the user terminal 420, and includes a Node-B, an evolved Node-B, and a Base Transceiver System (BTS). May be called in other terms such as an access point, a relay node, and the like.

That is, in the present specification, the base station 410 or the cell should be interpreted in a comprehensive sense indicating some areas covered by the base station controller (BSC) in the CDMA, the NodeB of the WCDMA, and the like. It is meant to cover various coverage areas such as microcell, picocell, femtocell and relay node communication range.

In the present specification, the terminal 420 is a comprehensive concept that means a user terminal in wireless communication. In addition to user equipment (UE) in WCDMA, LTE, and HSPA, as well as mobile station (MS) and user terminal (UT) in GSM, ), SS (Subscriber Station), wireless device (wireless device), etc. should be interpreted as including the concept. In particular, the terminal 420 may be one of the terminals 100 to 300 described with reference to FIGS. 1 to 3.

In a wireless communication system to which an embodiment of the present invention is applied, multiple access schemes for downlink and uplink transmission may be different. For example, downlink may use OFDMA and uplink may use Single Carrier-Frequency Division Multiple Access (SC-FDMA).

In the wireless communication system to which the embodiments of the present disclosure shown in FIG. 4 are applied, embodiments of the present disclosure may be configured to simultaneously transmit ACK / NACK and scheduling requests in a TDD (Time Division Duplex) system of a next-generation mobile communication system. A method or apparatus for transmitting ACK / NACK and uplink control information for a scheduling request at the same time is disclosed.

는 ACK/NACK이 전송되는 물리적인 자원블록의 위치뿐만 아니라 시퀀스의 순환지연(Cyclic Shift) 값과 직교성(orthogonality)을 제공하는 직교 시퀀스 인덱스

를 결정하는데 사용될 수 있다. 예를 들어 HARQ ACK/NACK 신호를 위한 자원 인덱스인

는 다음의 표 12와 같이 산출될 수 있다. Referring to FIG. 4, the terminal 420 learns the resource index through a signaling value for the resource index directly received from the base station 410 or a value calculated through control channel element (CCE) information of the PDCCH (S430). . Resource Index in PUCCH Format 1 / 1a / 1b

Orthogonal sequence index that provides the cyclic delay value and orthogonality of the sequence, as well as the location of the physical resource block to which the ACK / NACK is transmitted

Can be used to determine. For example, the resource index for HARQ ACK / NACK signal

May be calculated as shown in Table 12 below.

[Table 12]

의 합인 자원 인덱스

를 이용하여 n+4 번째 서브프레임에서 전송된다.

는 반정적 스케줄링 (Semi-Persistent Scheduling: SPS) 전송과 SR전송에 필요한 PUCCH format 1/1a/1b 자원의 총 개수이다. 반정적 스케줄링 전송과 SR 전송에 대한 정보는 해당 PDSCH 전송을 가리키는 PDCCH가 존재하지 않기 때문에 기지국(410)이

를 명시적으로(explicitly) 단말(420)에게 알려줄 수 있다. 이 n+4번째 서브프레임에 대한 설정은 구현 과정에서 조절되거나 달리 설정될 수 있는 부분이다. That is, according to Table 12, HARQ ACK / NACK for the PDSCH transmitted in the nth subframe is the first control channel element (CCE) index n _CCE of the PDCCH transmitted in the nth subframe and higher layer signaling. Or a value obtained through a separate control channel

Resource index that is the sum of

Is transmitted in the n + 4th subframe using.

Is the total number of PUCCH format 1 / 1a / 1b resources required for semi-persistent scheduling (SPS) transmission and SR transmission. For the information about the semi-static scheduling transmission and the SR transmission, since the PDCCH indicating the PDSCH transmission does not exist, the base station 410 determines that the information about the transmission of the SR is not present.

May explicitly inform the terminal 420. The configuration for the n + 4th subframe is a part that can be adjusted or otherwise configured in the implementation process.

The base station 410 may transmit the PDSCH allocated to the terminal 420 (S440).

The UE 420 may configure the PUCCH format as described with reference to FIGS. 1 to 3 according to whether one or two codewords included in the PDSCH allocated from the base station 410 are received and whether a scheduling request is performed. S450).

The terminal 420 may transmit whether to receive one or two codewords included in the allocated PDSCH and whether to request a scheduling request to the base station 510 through the PUCCH configured in step S450 (S460).

5 is a configuration diagram of a base station according to another embodiment.

The base station 500 that receives the control signal from the terminal in the wireless communication system includes a transmitter 510 for transmitting and receiving a radio signal with the terminal, the receiver 530 and a controller 520 for controlling them.

4 and 5, the transmitter 510 transmits a PDSCH allocated to a specific terminal.

Meanwhile, the receiver 530 generates a complex symbol by modulating one or more HARQ-ACK / NACK bits for a PDSCH transmission, and multiplies the generated complex symbol by a cyclic delayed sequence of length 12 to generate a block of complex symbols. Generate, scramble the generated block of complex symbols into a scrambling sequence, spread it into an orthogonal sequence, map it to a time-frequency resource, generate a signal from the mapped time-frequency resource, and specify a control signal Receive from the terminal.

For example, for two slots in each subframe, an orthogonal sequence used for spreading in the first slot is one of orthogonal sequences belonging to the first orthogonal sequence group, and used for spreading in the second slot. The orthogonal sequence may be one of orthogonal sequences belonging to the first orthogonal sequence group or one of orthogonal sequences belonging to the second orthogonal sequence group according to the presence or absence of the scheduling request SR.

As another example, for two slots in each subframe, the orthogonal sequence used for spreading in each slot is one of orthogonal sequences belonging to the first orthogonal sequence group depending on the presence or absence of a scheduling request SR. Or it may be one of orthogonal sequences belonging to the second orthogonal sequence group.

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 protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

Claims (16)

A method for generating and transmitting a control signal from a terminal in a wireless communication system,
Generating a complex symbol by modulating one or more HARQ-ACK / NACK bits;
Generating a block of complex symbols by multiplying the generated complex symbols by a cyclically delayed sequence of length 12;
Scrambling the generated blocks of complex symbols into a scrambling sequence, spreading them into an orthogonal sequence, and mapping them to time-frequency resources; And
Generating and transmitting a signal from the mapped time-frequency resource,
For two slots in each subframe,
The orthogonal sequence used for spreading in the first slot is one of orthogonal sequences belonging to the first orthogonal sequence group,
The orthogonal sequence used for spreading in the second slot is one of orthogonal sequences belonging to the first orthogonal sequence group or one of orthogonal sequences belonging to the second orthogonal sequence group depending on the presence or absence of a scheduling request (SR). Method characterized in that.
The method of claim 1,
And each orthogonal sequence belonging to the second sequence group is multiplied by -1 or 180 degree phase shifted to each orthogonal sequence belonging to the first sequence group.
The method of claim 1,
Orthogonal sequences belonging to the first orthogonal sequence group

,

,

Is,
Orthogonal sequences belonging to the second orthogonal sequence group

,

,

≪ / RTI >
The method of claim 1,
Orthogonal sequences belonging to the first orthogonal sequence group

,

,

Is,
Orthogonal sequences belonging to the second orthogonal sequence group

,

, ≪ / RTI >
A method for generating and transmitting a control signal from a terminal in a wireless communication system,
Generating one complex symbol by modulating one or more HARQ-ACK / NACK bits;
Generating a block of complex symbols by multiplying the generated complex symbols by a cyclically delayed sequence of length 12;
Scrambling the generated blocks of complex symbols into a scrambling sequence, spreading them into an orthogonal sequence, and mapping them to time-frequency resources; And
Generating and transmitting a signal from the mapped time-frequency resource,
For two slots in each subframe,
The orthogonal sequence used for spreading in each slot is one of orthogonal sequences belonging to the first orthogonal sequence group or one of orthogonal sequences belonging to the second orthogonal sequence group depending on the presence or absence of a scheduling request (SR). Method characterized in that.
6. The method of claim 5,
Orthogonal sequences belonging to the first orthogonal sequence group

,

Is,
Orthogonal sequences belonging to the second orthogonal sequence group

,

≪ / RTI >

In a wireless communication system, a base station receives a control signal from a terminal,
Transmitting a PDSCH allocated to a specific terminal; And
The specific terminal generates complex symbols by modulating one or more HARQ-ACK / NACK bits for the PDSCH transmission, multiplies the generated complex symbols by a cyclic delayed sequence of length 12 to generate a block of complex symbols. Scrambling the generated blocks of complex symbols into a scrambling sequence and spreading them into an orthogonal sequence, mapping them to time-frequency resources, generating and transmitting signals from the mapped time-frequency resources, from the specific terminal Including receiving,
For two slots in each subframe,
The orthogonal sequence used for spreading in the first slot is one of orthogonal sequences belonging to the first orthogonal sequence group,
The orthogonal sequence used for spreading in the second slot is one of orthogonal sequences belonging to the first orthogonal sequence group or one of orthogonal sequences belonging to the second orthogonal sequence group depending on the presence or absence of a scheduling request (SR). Method characterized in that.
8. The method of claim 7,
And each orthogonal sequence belonging to the second sequence group is multiplied by -1 or 180 degree phase shifted to each orthogonal sequence belonging to the first sequence group.
8. The method of claim 7,
Orthogonal sequences belonging to the first orthogonal sequence group

,

,

Is,
Orthogonal sequences belonging to the second orthogonal sequence group

,

,

≪ / RTI >
8. The method of claim 7,
Orthogonal sequences belonging to the first orthogonal sequence group

,

,

Is,
Orthogonal sequences belonging to the second orthogonal sequence group

,

,

≪ / RTI >
In a wireless communication system, a base station receives a control signal from a terminal,
Transmitting a PDSCH allocated to a specific terminal; And
The specific terminal modulates one or more HARQ-ACK / NACK bits to generate one complex symbol, multiplies the generated complex symbol by a sequence of a cyclic delay length 12 to generate a block of complex symbols, and generates the complex Scrambling a block of symbols with a scrambling sequence and spreading them in an orthogonal sequence to map them to time-frequency resources, and generating and transmitting a signal from the mapped time-frequency resources, receiving a control signal from the specific terminal. Including,
For two slots in each subframe,
The orthogonal sequence used for spreading in each slot is one of orthogonal sequences belonging to the first orthogonal sequence group or one of orthogonal sequences belonging to the second orthogonal sequence group depending on the presence or absence of a scheduling request (SR). Method characterized in that.
12. The method of claim 11,
Orthogonal sequences belonging to the first orthogonal sequence group

,

Is,
Orthogonal sequences belonging to the second orthogonal sequence group

,

≪ / RTI >
A terminal for generating and transmitting a control signal in a wireless communication system,
A modulator for generating a complex symbol by modulating one or more HARQ-ACK / NACK bits; And
Multiply the generated complex symbols by a cyclically delayed sequence of 12 to generate a block of complex symbols, scramble the generated blocks of complex symbols into a scrambling sequence and spread them into orthogonal sequences to map them to time-frequency resources A resource allocation unit for generating and transmitting a signal from the mapped time-frequency resources,
For two slots in each subframe,
The orthogonal sequence used for spreading in the first slot is one of orthogonal sequences belonging to the first orthogonal sequence group,
The orthogonal sequence used for spreading in the second slot is one of orthogonal sequences belonging to the first orthogonal sequence group or one of orthogonal sequences belonging to the second orthogonal sequence group depending on the presence or absence of a scheduling request (SR). Terminal characterized in that the.
A terminal for generating and transmitting a control signal in a wireless communication system,
A modulator configured to generate one complex symbol by modulating one or more HARQ-ACK / NACK bits; And
Multiply the generated complex symbols by a cyclically delayed sequence of 12 to generate a block of complex symbols, scramble the generated blocks of complex symbols into a scrambling sequence and spread them into orthogonal sequences to map them to time-frequency resources A resource allocation unit for generating and transmitting a signal from the mapped time-frequency resources,
For two slots in each subframe,
The orthogonal sequence used for spreading in each slot is one of orthogonal sequences belonging to the first orthogonal sequence group or one of orthogonal sequences belonging to the second orthogonal sequence group depending on the presence or absence of a scheduling request (SR). Terminal characterized in that the.
As a base station for receiving a control signal from a terminal in a wireless communication system,
A transmitter for transmitting a PDSCH allocated to a specific terminal;
The specific terminal generates complex symbols by modulating one or more HARQ-ACK / NACK bits for the PDSCH transmission, multiplies the generated complex symbols by a cyclic delayed sequence of length 12 to generate a block of complex symbols. Receiving a control signal from the specific terminal by scrambling the generated blocks of complex symbols into a scrambling sequence and spreading them into orthogonal sequences, mapping them to time-frequency resources, generating and transmitting signals from the mapped time-frequency resources A receiving unit; And
It includes a control unit for controlling the transmitter and the receiver,
For two slots in each subframe,
The orthogonal sequence used for spreading in the first slot is one of orthogonal sequences belonging to the first orthogonal sequence group,
The orthogonal sequence used for spreading in the second slot is one of orthogonal sequences belonging to the first orthogonal sequence group or one of orthogonal sequences belonging to the second orthogonal sequence group depending on the presence or absence of a scheduling request (SR). And a base station.
As a base station for receiving a control signal from a terminal in a wireless communication system,
A transmitter for transmitting a PDSCH allocated to a specific terminal;
The specific terminal modulates one or more HARQ-ACK / NACK bits to generate one complex symbol, multiplies the generated complex symbol by a sequence of a cyclic delay length 12 to generate a block of complex symbols, and generates the complex A receiving unit which scrambles a block of symbols into a scrambling sequence and spreads them into an orthogonal sequence, maps them to time-frequency resources, generates and transmits a signal from the mapped time-frequency resources, and receives a control signal from the specific terminal; And
It includes a control unit for controlling the transmitter and the receiver,
For two slots in each subframe,
The orthogonal sequence used for spreading in each slot is one of orthogonal sequences belonging to the first orthogonal sequence group or one of orthogonal sequences belonging to the second orthogonal sequence group depending on the presence or absence of a scheduling request (SR). And a base station.

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