KR20190028262A - Apparatus and method of uplink control information piggyback on PUSCH for new radio - Google Patents

Abstract

The present invention relates to an uplink control information transmission and reception method in a next generation/5G wireless access network. An embodiment provides a method for transmitting/receiving uplink control information (UCI) in a next generation/5G wireless access network, determining whether UCI piggyback is performed by overlapping between physical uplink shared channel (PUSCH) transmission symbols and physical uplink control channel (PUCCH) transmission symbols in a time domain.

Description

[0001] The present invention relates to a method and apparatus for piggybacking on uplink control information for a next generation wireless network,

The present invention proposes a method for transmitting / receiving uplink control information in a next generation / 5G radio access network (hereinafter referred to as NR (New Radio) in the present invention). In particular, the present invention proposes a ULC (Uplink Control Information) piggybacking method through a physical uplink shared channel (PUSCH), which is an uplink data channel.

According to an embodiment of the present invention, there is provided a method of transmitting / receiving uplink control information in a next generation / 5G radio access network, the method comprising determining whether to UCI piggyback according to overlapping between a PUSCH transmission symbol and a PUCCH transmission symbol in the time domain .

Figure 1 is a diagram illustrating symbol level alignment in different SCSs.
2 is a diagram illustrating a non-overlapping case between a PUSCH and a PUCCH.
FIG. 3 is a partial overlapping / full overlapping case between PUSCH and PUCCH.
4 is a diagram illustrating a configuration of a base station according to another embodiment of the present invention.
5 is a diagram illustrating a configuration of a user terminal according to another embodiment of the present invention.

Hereinafter, some embodiments of the present invention 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 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.

As used herein, a wireless communication system refers to a system for providing various communication services such as voice, packet data, and the like. A wireless communication system includes a user equipment (UE) and a base station (BS).

The user terminal is a comprehensive concept that means a terminal in a wireless communication, and it is a comprehensive concept which means a mobile station (MS) in GSM, a mobile station (MS) in UT (User Terminal), a Subscriber Station (SS), a wireless device, and the like.

A base station or a cell generally refers to a station that communicates with a user terminal and includes a Node-B, an evolved Node-B, a gNode-B, a Low Power Node A sector, a site, various types of antennas, a base transceiver system (BTS), an access point, a point (for example, a transmission point, a reception point, a transmission / reception point) (RRH), a radio unit (RU), and a small cell, as well as a relay cell, a relay node, a megacell, a macrocell, a microcell, a picocell, a femtocell, an RRH,

Since the various cells listed above exist in the base station controlling each cell, the base station can be interpreted into two meanings. Macro cell, micro cell, picocell, femtocell, small cell, or 2) the wireless region itself in connection with the wireless region. 1), all of the devices that interact to configure the wireless area to be cooperatively controlled by the same entity are all pointed to the base station. A point, a transmission / reception point, a transmission point, a reception point, and the like are examples of the base station according to the configuration method of the radio area. 2 may direct the base station to the wireless region itself to receive or transmit signals at the point of view of the user terminal or in the vicinity of the neighboring base station.

In this specification, a cell refers to a component carrier having a coverage of a signal transmitted from a transmission point or a transmission point or a transmission point or a transmission / reception point of a signal transmitted from a transmission / reception point, and a transmission / reception point itself .

Herein, the user terminal and the base station are used in a broad sense as two (uplink or downlink) transmitting and receiving subjects used to implement the technology or technical idea described in the present invention, and are not limited by a specific term or word Do not.

Here, an uplink (UL, or uplink) means a method of transmitting / receiving data to / from a base station by a user terminal, and a downlink (DL or downlink) .

The time division duplex (TDD) scheme, which is transmitted using different time periods, can be used for the uplink and downlink transmission, and a frequency division duplex (FDD) scheme in which different frequencies are used, a TDD scheme and an FDD scheme A hybrid method can be used.

In the wireless communication system, the uplink and the downlink are configured with reference to one carrier or carrier pair to form a standard.

The uplink and the downlink transmit control information through a control channel such as a physical downlink control channel (PDCCH), a physical uplink control channel (PUCCH), and the like. The physical downlink shared channel (PDSCH), the physical uplink shared channel (PUSCH) It is composed of the same data channel and transmits data.

A downlink may refer to a communication or communication path from a multipoint transmission / reception point to a terminal, and an uplink may refer to a communication or communication path from a terminal to a multiple transmission / reception point. At this time, in the downlink, the transmitter may be a part of the multiple transmission / reception points, and the receiver may be a part of the terminal. Also, in the uplink, the transmitter may be a part of the terminal, and the receiver may be a part of multiple transmission / reception points.

Hereinafter, a situation in which a signal is transmitted / received through a channel such as PUCCH, PUSCH, PDCCH, and PDSCH is expressed as 'PUCCH, PUSCH, PDCCH and PDSCH are transmitted and received'.

Meanwhile, the High Layer Signaling described below includes RRC signaling for transmitting RRC information including RRC parameters.

The base station performs downlink transmission to the UEs. The base station includes downlink control information, such as scheduling, required for reception of a downlink data channel, which is a primary physical channel for unicast transmission, and physical downlink control information for transmitting scheduling grant information for transmission in an uplink data channel. A control channel can be transmitted. Hereinafter, the transmission / reception of a signal through each channel will be described in a form in which the corresponding channel is transmitted / received.

There are no restrictions on multiple access schemes applied in wireless communication systems. (TDMA), Frequency Division Multiple Access (FDMA), Code Division Multiple Access (CDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Non-Orthogonal Multiple Access (NOMA) Various multiple access schemes such as OFDM-CDMA can be used. Here, the NOMA includes Sparse Code Multiple Access (SCMA) and Low Density Spreading (LDS).

One embodiment of the present invention relates to asynchronous wireless communications that evolve into LTE / LTE-Advanced, IMT-2020 over GSM, WCDMA, HSPA, and synchronous wireless communications such as CDMA, CDMA- Can be applied.

In this specification, a MTC (Machine Type Communication) terminal may mean a terminal supporting low cost (or low complexity) or a terminal supporting coverage enhancement. Alternatively, the MTC terminal may refer to a terminal defined in a specific category for supporting low cost (or low complexity) and / or coverage enhancement.

In other words, the MTC terminal in this specification may mean a newly defined 3GPP Release-13 low cost (or low complexity) UE category / type for performing LTE-based MTC-related operations. Alternatively, the MTC terminal may support enhanced coverage over the existing LTE coverage or a UE category / type defined in the existing 3GPP Release-12 or lower that supports low power consumption, or a newly defined Release-13 low cost low complexity UE category / type. Or a further Enhanced MTC terminal defined in Release-14.

In this specification, NarrowBand Internet of Things (NB-IoT) terminal means a terminal supporting wireless access for cellular IoT. The objectives of NB-IoT technology include improved indoor coverage, support for large-scale low-rate terminals, low latency sensitivity, ultra-low cost, low power consumption, and optimized network architecture.

Enhanced Mobile Broadband (eMBB), massive Machine Type Communication (mMTC), and Ultra Reliable and Low Latency Communication (URLLC) have been proposed as typical usage scenarios in NR (New Radio), which is under discussion in 3GPP.

In this specification, a frequency, a frame, a subframe, a resource, a resource block, a region, a band, a subband, a control channel, a data channel, a synchronization signal, various reference signals, various signals, May be interpreted as past or presently used meanings or various meanings used in the future.

NR (New Radio)

3GPP recently approved the study item "Study on New Radio Access Technology" for research on next generation / 5G radio access technology, and based on this, RAN WG1 has frame structure, channel coding and modulation , waveform & multiple access scheme and so on. NR is required not only to improve data transmission rate as compared with LTE, but also to design various QoS requirements that are required according to granular and specific usage scenarios. In particular, enhancement mobile broadband (eMBB), massive MTC (MMTC) and URLLC (Ultra Reliable and Low Latency Communications) are defined as typical usage scenarios of NR. structure design is required. Since each usage scenario has different requirements for data rates, latency, reliability, coverage, etc., it is a method to efficiently satisfy the requirements of each usage scenario through frequency bands constituting an NR system. there is a need for an efficient multiplexing of radio resource units based on subcarrier spacing, subframe, TTI, etc., for example.

One method is to support TDM, FDM or TDM / FDM based multiplexing on one or more NR component carriers (s) for numerology with different subcarrier spacing values, and a scheduling unit in the time domain A discussion was made on how to support more than one time unit in composition. In this regard, NR is a type of time domain structure defined as a subframe. Reference numerology for defining the subframe duration is defined as 14 OFDM symbols of 15 kHz sub-carrier spacing (SCS) based normal CP overhead equivalent to LTE To define a single subframe duration. Thus, subframes in NR have a time duration of 1ms. However, unlike LTE, the subframe of NR has a meaning as an absolute reference time duration. Actually, as a scheduling unit for the uplink / downlink data channels PDSCH and PUSCH in the time domain, all the SCSs have 14 OFDM symbols The configured slot is defined.

Depending on the transmission direction of the slot, all symbols may be used for DL transmission, or all symbols may be used for UL transmission, or in the form of a DL portion + (gap) + UL portion.

Also, a mini-slot composed of a smaller number of symbols than a corresponding slot is defined in an arbitrary numerology (or SCS), and a short-time time-domain scheduling interval is set for uplink / downlink data transmission or reception, A long-time time-domain scheduling interval for uplink / downlink data transmission and reception can be configured. Especially, in the case of sending and receiving latency critical data such as URLLC, it may be difficult to satisfy the latency requirement when scheduling is performed in 1 ms (14 symbols) slot unit in a numerology-based frame structure having a small SCS value such as 15 kHz Therefore, it is possible to define a mini-slot composed of a fewer number of OFDM symbols than the corresponding slot, and to schedule the latency critical data such as the URLLC based on the defined mini-slot.

Alternatively, as described above, by supporting the numerology having different SCS values in one NR Carrier by multiplexing the TDM and / or FDM scheme, it is possible to reduce the number of slots based on the slot (or mini-slot) length defined for each numerology Scheduling of data according to latency requirement is also considered. For example, as shown in FIG. 1, when the SCS is 60 kHz, the symbol length is reduced to about 1/4 of that of the SCS 15 kHz. Therefore, when one slot is composed of 14 OFDM symbols, The length is 1ms, while the slot length based on 60kHz is reduced to about 0.25ms.

In this way, the NR is discussing how to satisfy the requirements of URLLC and eMBB by defining different SCSs or different TTI lengths.

NR PUCCH

Like the existing LTE system, there are CSI, HARQ ACK / NACK feedback information, and SR (Scheduling Request) information as Uplink Control Information (UCI) transmitted from a UE to a Node B in NR. Also, as in LTE, a PUCCH (Physical Uplink Control Channel) is defined as an uplink physical channel for UCI transmission. However, unlike the PUCCH in which transmission is performed in units of uplink subframes consisting of 14 OFDM symbols on a normal CP basis (in the case of a shortened PUCCH format, transmission is performed through thirteen OFDM symbols except the last symbol), NR PUCCH A PUCCH transmission having various durations such as a short PUCCH transmitted through one to two symbols and a long PUCCH consisting of four to fourteen symbols within a slot composed of the above 14 symbols is defined.

UCI  piggyback on PUSCH

In case of a conventional LTE system, when data transmission over a PUSCH and UCI transmission via a PUCCH occur simultaneously in a single uplink subframe in an existing UE, the UCI transmitted through the PUCCH according to the terminal capability and the base station / Can be piggybacked on the PUSCH for transmission.

Similarly, NR is defined to support UCI piggyback via PUSCH. However, unlike the PUSCH and PUCCH of the LTE system in which transmission and reception are performed on a minimum subframe basis, transmission and reception of PUSCH and PUCCH can be performed through different symbols (s) in one slot as described above in the case of NR . Specifically, in the case of the PUCCH, a short PUCCH having a symbol duration of 1 to 2 and a long PUCCH having a symbol duration of 4 to 14 are defined, and a starting symbol and a symbol duration in which the corresponding PUCCH is transmitted in one slot are transmitted by the base station / Can be set. Similarly, in the case of the PUSCH, the symbol unit allocation information for PUSCH transmission resource allocation in one slot can be indicated by the base station / network.

The present invention proposes a UCI piggyback method over a PUSCH in NR.

In the present invention, a UCI piggyback method for NR is proposed. Specifically, when a PUSCH transmission and a UCI transmission are concurrently instructed by a base station / network through a slot in an arbitrary NR terminal, a concrete scheme for a PUSCH piggybacking method of UCI is proposed.

Unlike LTE, in which transmission and reception of PUSCH and PUCCH are performed in units of subframes, NR is defined to enable allocation of various symbol resources for PUSCH or PUCCH transmission in one slot in a base station / network. Accordingly, even when a PUSCH resource allocation for uplink data transmission and a PUCCH resource allocation for UCI transmission are concurrently performed in an arbitrary slot in an arbitrary slot, the corresponding PUSCH transmission symbol and the PUCCH transmission symbol are overlapped in the time domain The PUSCH transmission resource and the PUCCH transmission resource can be allocated in the base station / network.

That is, when transmission of PUSCH and PUCCH is instructed through one slot in one terminal, various PUSCH / PUCCH overlapping cases may exist in a time domain, i.e., a symbol constituting the corresponding slot.

In the present invention, UCI (eg CSI or HARQ ACK / NACK feedback) transmission / reception is instructed / set by a base station / network in the same slot for a terminal to which a PUSCH transmission resource is allocated in an arbitrary slot, and a PUCCH transmission resource If it is implicitly or explicitly assigned, we propose the UCI transmission method of the terminal.

Point 1: UCI  piggyback mode (or simultaneous PUCCH - PUSCH ) How to set

Measure 1: UCI piggyback mode (or simultaneous PUCCH-PUSCH) configuration based UCI piggyback

PUCCH-PUSCH-related configuration information, such as UCI piggyback-related configuration information, in any cell capable of PUCCH transmission (e.g., arbitrary PCell, PSCell, or PUCCH SCell) through UE-specific higher layer signaling or cell- transmission-related setting information can be defined to be transmitted to each terminal. However, in setting the UCI piggyback (i.e., simultaneous PUCCH-PUSCH transmission) information for an arbitrary terminal in the base station / network, it is possible to define the same settings for the long PUCCH and the short PUCCH through a single setting (Ie defining a single RRC parameter and defining the setting to apply the same for long PUCCH and short PUCCH), or setting UCI piggyback (ie, simultaneous PUCCH-PUSCH transmission) for long PUCCH and short PUCCH It is possible to define a separate UCI piggyback (i.e., simultaneous PUCCH-PUSCH transmission) for the long PUCCH and the short PUCCH, respectively, by defining a separate information area (i.e., a separate RRC parameter). Or the UCI piggyback (i.e., simultaneous PUCCH-PUSCH transmission) setting information for any terminal in the base station / network is applied only to a long PUCCH or a PUCCH transmission with a predetermined symbol duration or longer, and a short PUCCH or a predetermined symbol duration In the case of PUCCH transmission, regardless of the UCI piggyback setting (i.e., simultaneous PUCCH-PUSCH transmission setting), i.e., when UCI piggyback is set (simultaneous PUCCH-PUSCH transmission is not set) For some of these UCIs, PUSCH piggybacking can be defined to be transmitted separately via the assigned PUCCH.

Option 2: dynamic indication on simultaneous PUCCH-PUSCH transmission

As another method of setting the UCI piggyback mode (or simultaneous PUCCH-PUSCH), whether or not the UCI piggyback (i.e., simultaneous PUCCH-PUSCH transmission) in any slot is instructed by the base station / network through L1 control signaling Can be defined. That is, the base station / network can define whether to piggyback UCI PUSCH in an arbitrary slot with respect to an arbitrary terminal through dynamic downlink control information (DCI) and transmit it through the PDCCH. Specifically, in constructing an UL grant including PUSCH resource allocation information for an arbitrary terminal in a base station / network, an information region for indicating whether UCI piggyback is performed through the PUSCH is defined and included in a corresponding UL grant . Or PUSCH piggyback setting information of the corresponding UCI to all DL assignment DCI or UL grants including PUCCH resource allocation information for an arbitrary UCI transmission.

In addition, if the UCI piggyback indication through the L1 control signaling is supported, the UCI piggyback indication field may be defined to be included in an arbitrary UL grant or DL assignment DCI format, or a DL assignment DCI format or an UL grant DCI format Specific higher layer signaling or cell-specific higher layer signaling in the base station / network to determine whether the UCI piggyback indication field is included in the UCI piggyback indication field.

Point 2: UCI  piggyback behaviour

In addition, when UCI piggyback through a PUSCH is set for an arbitrary cell through a higher layer signaling as described above (i.e., when simultaneous PUCCH-PUSCH transmission is not set), a substantial PUSCH in an arbitrary slot The UCI piggybacking can be defined to be determined by time-domain overlapping between the PUSCH transmission resource allocated for data transmission in the corresponding slot and the PUCCH transmission resource allocated for UCI transmission.

As an example of this, a PUCCH transmission resource which is explicitly or implicitly allocated for UCI transmission of an arbitrary terminal in an arbitrary slot by a base station / network, and a PUSCH allocated for uplink data transmission of the corresponding terminal in the corresponding slot When the transmission resource is not overlapped in the time domain as shown in FIG. 2 below, regardless of whether the UCI piggyback (i.e., simultaneous PUCCH-PUSCH transmission) is set, i.e., when the UCI piggyback is set (simultaneous PUCCH-PUSCH transmission Is not set), it is possible to define that the UCI is transmitted through the allocated PUCCH transmission resource without piggybacking the UCI to the PUSCH in the corresponding slot. On the other hand, if PUCCH transmission resources allocated for UCI transmission and PUSCH transmission resources allocated for uplink data transmission partially or fully overlap in time domain as shown in FIG. 3, UCI piggyback according to the UCI piggyback setting If it is set (that is, when simultaneous PUCCH-PUSCH transmission is not set), it can be defined that the UCI is piggybacked through the PUSCH for transmission.

Or UCI piggyback via PUSCH is set in a certain cell (i.e., when simultaneous PUCCH-PUSCH transmission is not set) for any UE, the same UCI piggyback behavior is applied in the non-overlapping case and the fully-overlapping case In the case of a partially overlapping case, PUSCH piggyback may be determined according to the overlapping portion of the time-domain. For example, the time-domain resource (ie, number of symbols, Z) of the PUCCH transmission resource allocated for UCI transmission in the corresponding slot and the overlapping time-domain resource of PUSCH transmission resource (I.e., K / Z) is greater than or equal to a predetermined threshold value, the UCI transmission is defined to be piggybacked to the PUSCH for transmission. Otherwise, the UCI can be defined to be transmitted separately through the allocated PUCCH. If the overlapping time-domain PUCCH resource (i.e., number of symbols), Z, is greater than or equal to a predetermined threshold value, the corresponding UCI transmission is piggybacked to the PUSCH for transmission. Otherwise, the corresponding UCI is separately transmitted through the allocated PUCCH Can be defined. However, in this case, the threshold value may be set by the base station / network and transmitted through higher layer signaling, or may be defined as any fixed value.

Or if UCI piggyback via a PUSCH is set in an arbitrary cell (i.e., a simultaneous PUCCH-PUSCH transmission is not set), whether or not UCI piggyback through an actual PUSCH in a certain slot is performed in the corresponding slot Can be defined to be determined according to the position of the starting symbol of the PUCCH transmission resource allocated for UCI transmission and the position of the starting symbol of the PUSCH allocated for data transmission. For example, if the starting symbol index of a PUCCH resource allocated in a given slot is a, and the starting symbol index of allocated PUSCH resource is b, if a <= b, the UCI of the slot is piggybacked through the PUSCH Otherwise, the UCI can be defined to be transmitted separately through the assigned PUCCH. Conversely, if a starting symbol index of a PUCCH resource allocated to a given slot is a, and a starting symbol index of allocated PUSCH resource is b, if a> b, the UCI of the corresponding slot is piggybacked through the PUSCH, The UCI can be defined to be transmitted separately via the assigned PUCCH.

That is, if the starting symbol of the PUCCH is faster than the starting symbol of the PUSCH in an arbitrary slot, the terminal may define the PUCCH to be transmitted, and otherwise, the PUSCH to be transmitted. Specifically, when a < b (i.e., the starting symbol of the PUCCH is faster than the starting symbol of the PUSCH) and the starting symbol index of the PUCCH resource is a and the starting symbol index of the allocated PUSCH resource is b, The UE can define the UCI to be transmitted through the PUCCH as described above and to drop the PUSCH transmission. Conversely, when a < b (i.e., the starting symbol of the PUCCH is slower than the starting symbol of the PUSCH), the corresponding terminal may be configured to perform PUSCH transmission and the allocated PUCCH transmission and UCI transmission may be defined to drop. And, if a = b (that is, when the PUCCH and PUSCH starting symbols are the same), the UCI can be defined to be piggybacked on the PUSCH for transmission.

Or a = b (i.e., when the PUCCH and the PUSCH starting symbols are the same), the UCI is piggybacked on the PUSCH as described above, and for a ≠ b, the corresponding PUSCH transmission is PUSCH based on the UL grant If the PUSCH transmission is a grant free PUSCH transmission, the PUCCH and UCI transmission are dropped and the corresponding PUSCH transmission can be defined to be performed when the corresponding PUSCH transmission is performed by dropping the corresponding PUSCH transmission and transmitting the UCI through the allocated PUCCH. have.

UCI piggyback as a function of the overlapping between the PUCCH-PUSCH in the slot, the position of the starting symbol of the PUCCH transmission resource allocated for UCI transmission in the slot and the position of the starting symbol of the PUSCH allocated for data transmission Can be defined. For example, when non-overlapping between a PUCCH transmission resource allocated for UCI transmission and a PUSCH transmission resource allocated for data transmission in an arbitrary slot for an arbitrary terminal, the UCI is not piggybacked on the PUSCH, In case of partial or full overlapping, whether PUSCH piggyback of the UCI according to the starting symbol index, a of the PUCCH resource allocated in the given slot and the starting symbol index, b of the allocated PUSCH resource, Can be defined to be determined together.

Point 3. UCI  피gyback pattern configuration

When a UCI is piggybacked to a PUSCH transmission resource by point 1 and / or point 2, a new PUSCH piggyback method for NR can be defined.

Specifically, in the case of NR, the processing time for UCI feedback may be considered for each terminal, and the PUCCH transmission time point may be indicated on a symbol-by-base-by-base-station / network basis. In this way, when symbol-based processing time management for UCI feedback is performed, it is difficult to apply UCI piggyback pattern or UCI piggyback rule based on processing time management in subframe like existing LTE.

Accordingly, in the case of NR, when the UCI is piggybacked through the PUSCH by the base station, the UCI piggybacked symbol may be explicitly or implicitly indicated by the base station / network. For example, when allocating a PUCCH resource in an arbitrary slot for HARQ ACK / NACK feedback for PDSCH reception of the UE, the starting symbol index of the PUCCH may be set / indicated to the BS. In this case, when the PUSCH resource allocation is performed in the corresponding slot and the corresponding HARQ ACK / NACK feedback is piggybacked through the corresponding PUSCH by the point 1 and / or point 2, the corresponding piggyback is transmitted as the starting symbol index, and so on. In other words, the UE does not piggyback the HARQ ACK / NACK by puncturing the neighboring symbol of the DM-RS symbol of the PUSCH with the RE (s) as an LTE-like form and transmits the starting symbol of the PUCCH indicated by the base station / s) of the HARQ ACK / NACK and transmits the HARQ ACK / NACK information through piggyback. Or the HARQ ACK / NACK, as well as CSI feedback information, as described above. That is, among the allocated PUSCH resources, the REs composed of the starting symbol of the PUCCH indicated by the base station / network and the subsequent symbols thereof for CSI feedback are time-first type Or to map REs for piggyback to CSI feedback in a frequency first manner.

Or UCI piggyback pattern or UCI piggyback rule for each terminal according to the capability of the terminal or the configuration of the base station / network.

That is, a plurality of UCI piggyback patterns or UCI piggyback rules are defined in the case of NR, and a UCI piggyback pattern or a UCI piggyback rule to be applied to each UE is set through UE-specific higher layer signaling or L1 control signaling in the base station / network Can be defined. For example, a piggyback rule for LTE-like piggyback rule and the new piggyback rule described above is applied to each base station / network and defined to be transmitted through UE-specific higher layer signaling or L1 control signaling .

However, in the case where a plurality of piggyback patterns or piggyback rules are defined regardless of a specific piggyback rule or a piggyback pattern, and a piggyback pattern or piggyback rule to be applied through UE-specific higher layer signaling or L1 control signaling is set for each terminal, . &Lt; / RTI &gt;

4 is a diagram illustrating a configuration of a base station 1000 according to another embodiment of the present invention.

Referring to FIG. 4, a base station 1000 according to another embodiment includes a control unit 1010, a transmission unit 1020, and a reception unit 1030.

In the method for transmitting / receiving uplink control information in a next generation / 5G radio access network required for performing the above-described present invention, the control unit 1010 determines whether UCI piggyback is performed according to overlapping between PUSCH transmission symbols and PUCCH transmission symbols in the time domain. And controls the overall operation of the base station 1000 according to the determination.

The transmitting unit 1020 and the receiving unit 1030 are used to transmit and receive signals, messages, and data necessary for carrying out the present invention to and from the terminal.

5 is a diagram illustrating a configuration of a user terminal 1100 according to another embodiment of the present invention.

5, the user terminal 1100 according to another embodiment includes a receiving unit 1110, a control unit 1120, and a transmitting unit 1130.

The receiving unit 1110 receives downlink control information, data, and messages from the base station through the corresponding channel.

In addition, the control unit 1120 transmits and receives uplink control information in a next generation / 5G radio access network required for performing the above-described present invention. The control unit 1120 determines whether UCI piggyback is performed according to overlapping between PUSCH transmission symbols and PUCCH transmission symbols in the time domain. And controls the overall operation of the user terminal 1100 according to the determination result.

The transmitter 1130 transmits uplink control information, data, and a message to the base station through the corresponding channel.

The standard content or standard documents referred to in the above-mentioned embodiments constitute a part of this specification, for the sake of simplicity of description of the specification. Therefore, it is to be understood that the content of the above standard content and portions of the standard documents are added to or contained in the scope of the present invention.

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 (1)

A method for transmitting / receiving uplink control information in a next generation / 5G radio access network,
Wherein the UCI piggyback is determined according to overlapping between the PUSCH transmission symbol and the PUCCH transmission symbol in the time domain.

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