KR102114949B1 - Apparatus and method of PUCCH resource allocation for new radio - Google Patents

Abstract

The present embodiments are directed to a method of allocating an uplink control channel resource in a next generation/5G radio access network, receiving uplink control channel resource set configuration information for transmitting the uplink control information from a base station, uplink control channel resource Determining an uplink control channel resource set of one of the uplink control channel resource sets included in the set configuration information, uplink control of one of the uplink control channel resources constituting the determined one uplink control channel resource set It provides a method and apparatus comprising the step of determining a channel resource and transmitting the uplink control information through the determined uplink control channel resource.

Description

{Apparatus and method of PUCCH resource allocation for new radio}

This embodiment proposes a method for allocating an uplink control channel resource in a next generation/5G radio access network (hereinafter referred to as NR [New Radio] in the present invention).

3GPP recently approved "Study on New Radio Access Technology", a study item for research on next-generation/5G radio access technology, and based on this, RAN WG1 has a frame structure, channel coding, and modulation for NR (New Radio), respectively. , Waveform and multiple access methods are being discussed. NR is required to be designed to satisfy various demands required for each segmented and specific usage scenario as well as improved data rates in preparation for LTE/LTE-Advanced.

As a representative usage scenario of NR, enhancement mobile BroadBand (eMBB), massive machine type communication (mMTC) and ultra reliable and low latency communications (URLLC) are proposed, and LTE/LTE-Advanced compared to meet the needs of each usage scenario It is desired to design a flexible frame structure.

In particular, when the terminal of the NR uses a variety of bandwidth parts (BWP, bandwidth part), based on the above-described bandwidth part, the terminal specifically for transmitting the uplink channel, that is, the uplink control channel and the uplink data channel to the base station There is an increasing need to establish an efficient and efficient method.

It is an object of the present embodiments to provide a method and apparatus for preventing ambiguity between uplink control channel transmission/reception resource indication and analysis of a base station and a terminal according to uplink bandwidth part switching in a next generation wireless network.

In an embodiment devised to solve the above-described problem, in a method in which a terminal transmits uplink control information, receiving a configuration information of an uplink control channel resource set for transmitting the uplink control information from a base station, the uplink Determining one uplink control channel resource set among uplink control channel resource sets included in the link control channel resource set configuration information, and one of uplink control channel resources constituting one determined uplink control channel resource set It provides a method comprising the step of determining the uplink control channel resources and transmitting the uplink control information through the determined uplink control channel resources.

In another embodiment, in a method for a base station to receive uplink control information, transmitting the uplink control channel resource set configuration information for transmitting the uplink control information to a terminal, and the uplink control channel resource set configuration A method comprising receiving uplink control information through one uplink control channel resource among uplink control channel resources constituting one uplink control channel resource set among uplink control channel resource sets included in the information. Gives

Another embodiment is a terminal for transmitting uplink control information, a receiving unit for receiving uplink control channel resource set configuration information for transmitting the uplink control information from a base station, included in the uplink control channel resource set configuration information A control unit for determining one uplink control channel resource set of the uplink control channel resource sets and determining an uplink control channel resource of one of the uplink control channel resources constituting the determined one uplink control channel resource set, and It provides a terminal including a transmitter for transmitting the uplink control information through the determined uplink control channel resource.

Another embodiment is a base station that receives uplink control information, a transmitter for transmitting uplink control channel resource set configuration information for uplink control information transmission to a terminal, and an uplink control channel resource set configuration information included in the It provides a base station including a receiver for receiving uplink control information through one of the uplink control channel resources of the uplink control channel resources constituting one of the uplink control channel resource set of the uplink control channel resource set.

Through these embodiments, ambiguity between uplink control channel transmission/reception resource indication and analysis of a base station and a terminal according to uplink bandwidth part switching in a next generation wireless network can be prevented.

FIG. 1 is a diagram illustrating alignment of OFDM symbols when different subcarrier spacings are used according to the present embodiments.
2 is a diagram illustrating a conceptual example of a bandwidth part in this embodiment.
3A is a diagram illustrating an example of setting N bandwidth parts in one serving cell set for an arbitrary UE.
FIG. 3B exemplarily shows a configuration of PUCCH resource sets constituting N bandwidth parts of FIG. 3A and PUCCH resources constituting each PUCCH resource sets.
3C is a diagram illustrating downlink control information including PUCCH resource indication information.
4 is a diagram illustrating a procedure in which a terminal performs uplink control information in this embodiment.
5 is a diagram illustrating a procedure for a base station to receive uplink control information in this embodiment.
6 is a diagram showing the configuration of a base station according to the present embodiments.
7 is a diagram showing the configuration of a terminal according to the present embodiments.

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. It should be noted that in adding reference numerals to the components of each drawing, the same components have the same reference numerals as possible even though they are displayed on different drawings. In addition, in describing the present invention, when it is determined that detailed descriptions of related well-known structures or functions may obscure the subject matter of the present invention, detailed descriptions thereof will be omitted.

In the present specification, a wireless communication system means a system for providing various communication services such as voice and packet data. The wireless communication system includes a user equipment (UE) and a base station (BS).

The user terminal is a comprehensive concept that refers to a terminal in wireless communication, user equipment (UE) in WCDMA, LTE, HSPA and IMT-2020 (5G or New Radio), as well as MS (Mobile Station) in GSM, UT It should be interpreted as a concept including (User Terminal), SS (Subscriber Station), and wireless devices.

Base station or cell (Cell) generally refers to a station (station) to communicate with the user terminal, Node-B (Node-B), eNB (evolved Node-B), gNB (gNode-B), LPN (Low Power Node) ), Sector, Site, Antenna of various types, Base Transceiver System (BTS), Access Point, Point (e.g., transmit point, receive point, transmit/receive point), relay node ( Relay Node), mega cell, macro cell, micro cell, pico cell, femto cell, remote radio head (RRH), radio unit (RU), and small cell (small cell).

Since the various cells listed above have a base station that controls each cell, the base station can be interpreted in two ways. 1) a device that provides a mega cell, a macro cell, a micro cell, a pico cell, a femto cell, and a small cell in relation to the wireless area, or 2) the wireless area itself. In 1), all devices that provide a predetermined wireless area are controlled by the same entity or interact to configure the wireless area in a collaborative manner. Points, transmission/reception points, transmission points, reception points, and the like, according to a configuration method of a wireless area, are examples of a base station. In 2), the radio area itself, which receives or transmits a signal from the perspective of the user terminal or the neighboring base station, may be directed to the base station.

In this specification, a cell is a component carrier having a coverage of a signal transmitted from a transmission/reception point or a signal transmitted from a transmission/reception point, or a transmission/reception point itself. Can be.

In the present specification, the user terminal and the base station are two (Uplink or Downlink) transmitting and receiving subjects used to implement the technology or technical idea described in the present invention, which are used in a comprehensive sense and are not limited by terms or words specifically referred to. Does not.

Here, the uplink (Uplink, UL, or uplink) means a method of transmitting and receiving data to the base station by the user terminal, the downlink (Downlink, DL, or downlink) transmits and receives data to the user terminal by the base station Means the way.

For uplink transmission and downlink transmission, a time division duplex (TDD) method transmitted using different times may be used, and a frequency division duplex (FDD) method, TDD method, and FDD method transmitted using different frequencies may be used. Mixing methods can be used.

Further, in a wireless communication system, a standard is configured by configuring an uplink and a downlink based on one carrier or a pair of carriers.

The uplink and downlink transmit control information through control channels such as Physical Downlink Control CHannel (PDCCH), Physical Uplink Control CHannel (PUCCH), and Physical Downlink Shared CHannel (PDSCH), Physical Uplink Shared CHannel (PUSCH), etc. It consists of the same data channel and transmits data.

A downlink may refer to a communication or communication path from a multiple 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 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 the multiple transmission/reception points.

Hereinafter, a situation in which signals are transmitted/received through channels such as PUCCH, PUSCH, PDCCH and PDSCH is also described in the form of'transmit and receive PUCCH, PUSCH, PDCCH and PDSCH'.

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

The base station performs downlink transmission to the terminals. The base station physically downlinks for transmitting downlink control information such as scheduling required for reception of a downlink data channel, which is a main physical channel for unicast transmission, and scheduling grant information for transmission in the uplink data channel. The control channel can be transmitted. Hereinafter, the transmission and reception of signals through each channel will be described as a form in which the corresponding channel is transmitted and received.

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

One embodiment of the present invention is to allocate resources such as asynchronous wireless communication evolving to LTE/LTE-Advanced, IMT-2020 via GSM, WCDMA, HSPA, and synchronous wireless communication evolving to CDMA, CDMA-2000 and UMB. Can be applied.

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

In other words, in this specification, the MTC terminal may mean a newly defined 3GPP Release-13 low cost (or low complexity) UE category/type that performs LTE-based MTC-related operations. Or, in this specification, the MTC terminal supports enhanced coverage compared to the existing LTE coverage, or UE category/type defined under the existing 3GPP Release-12 or lower supporting low power consumption, or the newly defined Release-13 low cost (or low complexity) UE category/type. Or, it may mean a further enhanced MTC terminal defined in Release-14.

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

As a representative usage scenario in New Radio (NR), which is currently being discussed in 3GPP, enhanced Mobile BroadBand (eMBB), Massive Machine Type Communication (mMTC), and Ultra Reliable and Low Latency Communication (URLLC) have been proposed.

In this specification, frequency, frame, subframe, resource, resource block, region, band, subband, control channel, data channel, synchronization signal, various reference signals, various signals, various messages related to NR (New Radio) Can be interpreted as meaning used in the past or present or various meanings used in the future.

NR (New Radio)

3GPP recently approved "Study on New Radio Access Technology", a study item for research on next-generation/5G radio access technology, and based on this, frame structure, channel coding and modulation for NR (New Radio), waveform and Discussion of a frame structure, channel coding & modulation, waveform & multiple access scheme, etc. has begun.

NR is required to be designed to satisfy various requirements required for each segmented and specific usage scenario, as well as an improved data rate compared to LTE/LTE-Advanced. In particular, as a representative usage scenario of NR, enhancement mobile BroadBand (eMBB), massive MTC (mMTC), and ultra reliable and low latency communications (URLLC) have been raised, and requirements for each usage scenario are requested. As a method for satisfying, a flexible frame structure design compared to LTE/LTE-Advanced is required.

Specifically, eMBB, mMTC, and URLLC are considered as representative usage scenarios of NR under discussion in 3GPP. Since each usage scenario has different requirements for data rates, latency or latency, and coverage, frequency bands constituting an arbitrary NR system are used. As a method to efficiently satisfy the requirements for each usage scenario, radio resource units (units) based on different numerology (eg subcarrier spacing, subframe, TTI, etc.) ), there is a need for a method of efficiently multiplexing.

As a method for this, multiplexing is supported based on TDM, FDM or TDM/FDM through one NR carrier for numerology having different subcarrier spacing (SCS) values. Discussion has been made of a method and a method of supporting one or more time units in configuring a scheduling unit in a time domain.

In this regard, in NR, a subframe is defined as a type of time domain structure, and a reference numerology for defining a corresponding subframe duration. As it was decided to define a single subframe duration composed of 14 OFDM symbols of normal CP overhead based on 15 kHz SCS (Sub-Carrier Spacing), which is the same as LTE. Accordingly, the subframe in NR has a duration of 1 ms. However, unlike LTE, the subframe of NR is an absolute reference time duration, which is a time unit based on actual uplink/downlink data scheduling and a slot and a mini-slot. ) Can be defined. In this case, the number of OFDM symbols constituting the corresponding slot and the y value are determined to have a value of y=14 regardless of the neuromerging, but are not limited thereto.

Accordingly, an arbitrary slot may consist of 14 symbols, and all symbols may be used for DL transmission or all symbols may be uplink transmitted according to a transmission direction of the corresponding slot. UL transmission), or may be used in the form of a DL portion + (gap) + UL portion.

In addition, a mini-slot consisting of fewer symbols than the corresponding slot is defined in a random numerology (or SCS), and based on this, a short-length time domain scheduling interval for transmitting/receiving uplink/downlink data (time-domain) The scheduling interval may be set, or a long-time time-domain scheduling interval for transmitting/receiving uplink/downlink data through slot aggregation may be configured.

In particular, in case of transmitting/receiving for latency critical data such as URLLC, a slot based on 0.5ms (7 symbols) or 1ms (14 symbols) defined in a numerology based frame structure having a small SCS value such as 15 kHz. When scheduling is performed in units, it may be difficult to satisfy latency requirements. For this reason, for this purpose, a mini-slot consisting of fewer OFDM symbols than the corresponding slot can be defined, and based on this, mini-slot can be defined to schedule scheduling of latency critical data such as the corresponding URLLC. .

Alternatively, as described above, by supporting multiplexed neuromerrollers having different SCS values in one NR carrier by TDM or FDM scheme, based on the defined slot (or mini-slot) length for each neuromerroller A method of scheduling data according to a latency requirement is also considered. For example, when the SCS is 60 kHz as shown in FIG. 1, the length of the symbol is reduced to about 1/4 compared to the case of the SCS 15 kHz, so when one slot is composed of 7 OFDM symbols, the corresponding 15 kHz-based slot length is While being 0.5ms, the slot length based on 60kHz is reduced to about 0.125ms.

As such, in NR, discussions are being made on how to satisfy the requirements of URLLC and eMBB by defining different SCS or different TTI lengths.

Wider bandwidth operations

In the case of the existing LTE system, a scalable bandwidth operation for an arbitrary component carrier (CC) is supported. That is, according to the frequency deployment scenario (deployment scenario), any LTE operator can configure a single LTE CC, and can configure a bandwidth of at least 1.4 MHz to a maximum of 20 MHz. Accordingly, any normal LTE terminal supports transmission and reception capability of 20 MHz bandwidth for one LTE component carrier.

However, in the case of NR, the design is made to support NR terminals having different transmission/reception bandwidth capabilities in one wideband NR component carrier. Accordingly, as shown in FIG. 2 below, one or more bandwidth parts (BWP, bandwidth parts) composed of subdivided bandwidths for arbitrary NR CCs are configured to be flexible by setting and activating different bandwidth parts for each terminal. It is required to support a wider bandwidth operation.

Specifically, in the NR, one or more bandwidth parts may be configured through one serving cell configured from a terminal perspective. The UE can be used to transmit/receive uplink/downlink data by activating one downlink bandwidth part and one uplink bandwidth part in the serving cell. In addition, when a plurality of serving cells are configured in the corresponding terminal, that is, a carrier aggregation (CA, carrier aggregation) is applied to the serving cell by activating one downlink bandwidth part and/or uplink bandwidth part for each serving cell. It can be used to transmit/receive uplink/downlink data using the radio resource of.

Specifically, an initial bandwidth part for an initial access procedure of a UE in an arbitrary serving cell is defined, and one or more UE-specific bandwidth parts through RRC signaling that are specified for each UE (S) is configured, and a default bandwidth part for a fallback operation may be defined for each terminal.

However, it can be defined to activate and use a plurality of downlink and/or uplink bandwidth parts at the same time according to the capability and bandwidth part(s) configuration of the terminal in any serving cell, but in NR rel-15 It was defined to activate and use only one downlink bandwidth part and uplink bandwidth part at any time.

NR PUCCH

In the case of the existing LTE system, PUCCH transmission, which is an uplink control channel for transmission of uplink control information (UCI) of the UE, is performed in a single subframe unit. That is, one PUCCH transmission is performed on 14 SC-FDMA symbols constituting one subframe in the time domain. However, when the last symbol is used for SRS transmission, PUCCH transmission is performed through 13 symbols excluding the last symbol.

Also, different PUCCH formats are defined according to the payload size of the uplink control information. Specifically, transmission of 1 or 2 bits of uplink control information such as SR (Scheduling Request) and HARQ ACK was transmitted through PUCCH format 1 series (PUCCH format 1/1a/1b), such as CQI/CSI feedback. moderate) In case of uplink control information having a payload size, PUCCH format 2 (PUCCH format 2a/2b) series, and in case of uplink control information feedback of a large payload size in a CA situation, it was defined to use PUCCH format 3 or higher.

However, in the case of NR, a PUCCH structure having various durations within a slot consisting of 14 symbols was defined. Specifically, in NR, the number of symbols in which a single PUCCH transmission is performed in one slot for transmission of uplink control information (UCI) of a UE, and a long duration PUCCH and It may be divided into short duration PUCCH. In NR, short duration PUCCH transmitted from 1 to 2 symbols in one slot and up to 14 in 4 for uplink control information (UCI) transmission of the UE Two types of PUCCH have been defined: long duration PUCCH transmitted through symbols between dogs.

Hereinafter, short duration PUCCH may also be referred to as short PUCCH (short PUCCH), and long duration PUCCH may also be referred to as long PUCCH (long PUCCH). That is, in the case of a short duration PUCCH, it may be transmitted through 1 to 2 symbols, and a long duration PUCCH may be transmitted through 4 to 14 symbols in one slot.

Also, for each long duration PUCCH and short duration PUCCH, different PUCCH formats may be defined similar to LTE according to the uplink control information payload size. For example, a PUCCH format for transmitting uplink control information of up to 2 bits for a short duration PUCCH and a PUCCH format for transmitting uplink control information having a payload size of more than one may be respectively defined. . Also, for a long duration PUCCH, a PUCCH format for transmitting uplink control information of up to 2 bits and a PUCCH format for transmitting uplink control information having a payload size of more than one may be respectively defined.

That is, in defining a PUCCH structure for transmitting uplink control information in NR, a definition of PUCCH duration and PUCCH format may be required, respectively.

This embodiment proposes a method for allocating PUCCH resources for HARQ ACK/NACK feedback or aperiodic CSI reporting of a UE in NR. This embodiment is exemplarily described as PUCCH for HARQ ACK/NACK feedback or aperiodic CSI reporting of the UE, but the present invention is not limited thereto, and PUCCH resource for service request (SR) or periodic CSI reporting Can be applied in assignments.

As described above, in the NR, one or more bandwidth part(s) may be configured through one serving cell configured from a terminal perspective. Specifically, according to a transmission direction supported by a corresponding serving cell, in the case of a serving cell composed of an unpaired spectrum (ie TDD) or a paired spectrum (ie FDD), at least one downlink Each of the link bandwidth part(s) and the uplink bandwidth part(s) may be configured.

The base station is defined to be used for transmission and reception of uplink/downlink radio channels and signals (eg PDCCH/PDSCH, PUSCH/PUCCH, etc.) by activating only one downlink bandwidth part and uplink bandwidth part at a given time for each terminal. Became. However, in the case of a serving cell of downlink only (DL-only) or uplink only (UL-only), only the downlink bandwidth part(s) or uplink bandwidth part(s) can be configured and activated, respectively.

Accordingly, the terminal may independently configure and activate bandwidth part(s) for a secondary cell (Scell) configured through carrier aggregation in addition to a primary cell (Pcell) in which initial access is made.

When one or more bandwidth part(s) is configured in an arbitrary serving cell configured for any UE as described above, the UE may activate and use one bandwidth part at any time.

Specifically, one downlink bandwidth part in any downlink subframe/slot/mini-slot among one or more downlink bandwidth part(s) configured for the corresponding terminal in the serving cell for downlink transmission/reception. Activate it and use it. Similarly, for uplink transmission/reception, one uplink bandwidth part in any uplink subframe/slot/mini-slot of one or more uplink bandwidth part(s) configured for the corresponding terminal in the serving cell Activate and use.

The activation/deactivation (activation/deactivation) indication of the downlink bandwidth part and the uplink bandwidth part for any terminal may be made through downlink control information (DCI) transmitted through the PDCCH. Specifically, activation and deactivation of a downlink bandwidth part may be performed through DL assignment downlink control information including resource allocation information for PDSCH. In addition, activation and deactivation of an uplink bandwidth part may be performed through an uplink grant including resource allocation information for PUSCH.

For example, the terminal may receive bandwidth part (BWP, bandwidth part) setting information for a bandwidth part set consisting of one or more bandwidth parts set for the terminal from the base station. Next, the terminal may receive downlink control information including information indicating one of the one or more bandwidth parts included in the bandwidth part set set by the bandwidth part setting information from the base station. The UE may receive a downlink data channel (PDSCH) or transmit an uplink data channel (PUSCH)/uplink control channel (PUCCH) through one bandwidth part indicated by the downlink control information.

At this time, the bandwidth part setting information may be received from the base station through higher layer signaling (eg, RRC signaling).

In this embodiment, the UE-specific bandwidth part (hereinafter, referred to as a bandwidth part for convenience of description, the bandwidth part may be referred to as a BWP) based on a UE-specific bandwidth part allocation method and a specific base station related thereto. It proposes the operation of the terminal. Particularly, a specific PUCCH resource allocation method is proposed to prevent ambiguity between PUCCH transmission/reception resource indication and interpretation of a base station and a terminal according to uplink bandwidth part activation/deactivation, that is, uplink bandwidth part switching.

In NR, a single PUCCH resource set composed of one or more PUCCH resource(s) for HARQ ACK/NACK feedback for each terminal in a base station/network or a plurality of PUCCH resource sets composed of one or more PUCCH resource(s) are configured. , It can be transmitted to each terminal through UE-specific higher layer signaling.

When a single or a plurality of PUCCH resource set(s) for an arbitrary UE is configured through UE-specific higher layer signaling as described above, the base station for the UE through the PDCCH When the PDSCH scheduling control information is transmitted, the corresponding downlink allocation downlink control information may be transmitted including PUCCH resource indication information for HARQ ACK/NACK feedback of the corresponding UE for receiving the PDSCH.

That is, the base station selects one PUCCH resource among PUCCH resources constituting a single PUCCH resource set set for the corresponding terminal for each PDSCH transmission for any terminal, or one of a plurality of PUCCH resource sets set for the corresponding terminal. PUCCH resource to be used for HARQ ACK/NACK feedback in the corresponding UE by selecting one PUCCH resource among the PUCCH resource set and the PUCCH resources constituting the corresponding PUCCH resource set and transmitting it through downlink allocation downlink control information. Can be defined to allocate dynamically.

In this embodiment, a specific PUCCH resource set setting method and a corresponding PUCCH resource indication method are proposed.

First, as a method of configuring the PUCCH resource set(s) for any UE, in configuring PUCCH resource set(s) for each UE for HARQ ACK/NACK feedback of the UE, an uplink bandwidth set for the UE It can be defined to set separate resource set(s) for each part.

For example, when uplink bandwidth parts of N (N is a natural number greater than 1) are set as shown in FIG. 3A for an arbitrary UE, each uplink for PUCCH resource indication for HARQ ACK/NACK feedback of the corresponding UE Separate single or multiple PUCCH resource set(s) for each bandwidth part may be set and defined to be transmitted to a corresponding terminal through UE-specific higher layer signaling. However, although FIG. 3A is configured not to overlap in the frequency axis between each bandwidth part, the bandwidth part may be configured such that it overlaps partially or fully in the frequency axis between arbitrary bandwidth parts. This embodiment is not limited by the specific uplink bandwidth part setting.

Referring to Figure 3b, the base station is one or a plurality of PUCCH resource set (s) for bandwidth part #1 for the terminal, another or a plurality of PUCCH resource set (s) for BWP #2, ... , Up to one or more PUCCH resource set(s) for each BWP #N, for each bandwidth part, a total of N or more PUCCH resource set(s) groups may be defined. For example, as illustrated in FIG. 3B, PUCCH resource sets included in a specific bandwidth part, for example, BWP #2, may be configured of, for example, first to fourth PUCCH resource sets.

In this case, each PUCCH resource constituting one or a plurality of PUCCH resource sets set through higher layer signaling for each uplink bandwidth part is PUCCH format setting information, time in the corresponding uplink bandwidth part/ It may be defined as frequency domain PUCCH resource configuration information (or additionally code-domain resource configuration information) or the like. For example, as illustrated in FIG. 3B, a specific PUCCH resource set, for example, a second PUCCH resource set, may be composed of first to fourth PUCCH resources.

When one or a plurality of PUCCH resource set(s) is configured for each bandwidth part by higher layer signaling as described above, in configuring the PUCCH resource indication information area through the downlink allocation downlink control information, the base station transmits PUCCH. It can be defined to explicitly include the uplink bandwidth part indication information for.

Specifically, the PUCCH resource indication information through the downlink allocation downlink control information includes uplink bandwidth part indication information (eg bandwidth part index information) + PUCCH resource set indication information (eg PUCCH resource set index information) in the corresponding uplink bandwidth part. ) + Among the PUCCH resources constituting the corresponding PUCCH resource set, the UE may be configured with PUCCH resource indication information (eg, PUCCH resource index in the PUCCH resource set) to be used for HARQ ACK/NACK feedback.

However, in configuring a PUCCH resource set in an arbitrary bandwidth part, when a specific classification-based PUCCH resource set is configured, the specific classification information may replace the PUCCH resource set indication information. For example, when each PUCCH resource set is separately configured according to PUCCH format, PUCCH duration, or PUCCH payload size, corresponding PUCCH format information, PUCCH duration information, or PUCCH payload size information, respectively, are the PUCCH resources. It can be used instead of the set instruction information.

For example, in configuring the PUCCH resource set through RRC signaling as described above, it is defined to configure a separate PUCCH resource set for each PUCCH format, and the HARQ of the UE through the downlink allocation downlink control information. By transmitting PUCCH format indication information for ACK/NACK feedback, it is possible to define that a set of PUCCH resources for PUCCH resource allocation of the corresponding terminal is derived through this.

As another example, it is defined to configure a separate PUCCH resource set according to the size of the PUCCH payload to be transmitted by the terminal, that is, the payload size of the uplink control information, and the size of the uplink control information payload to be transmitted by the terminal. According to this, it may be defined to determine the PUCCH resource set for the PUCCH resource allocation. As shown in FIG. 3B, it is defined that only the PUCCH resource indication information (eg ARI, ACK/NACK resource indication) is transmitted through downlink allocation downlink control information, and the UE determines a PUCCH resource set for interpreting it. In the above, it may be defined that the corresponding PUCCH resource set is derived according to the uplink control information payload size (UCI payload size) that the corresponding terminal should transmit through the PUCCH resource allocated through the downlink allocation downlink control information. .

For example, the uplink control information payload size is divided into four regions according to the number of bits, and one of the first to fourth PUCCH resource sets is shown in FIG. 3B according to the number of bits of the uplink control information. It can be defined to protrude.

As shown in FIG. 3C, downlink allocation downlink control information may include PUCCH resource information or PUCCH resource indicator. The PUCCH resource indication information indicates one uplink control channel resource for uplink control information transmission among uplink control channel resources constituting the uplink control channel resource set. For example, as illustrated in FIG. 3B, when the uplink control channel resource set is composed of the first to fourth PUCCH resources, the PUCCH resource indication information illustrated in FIG. 3C may indicate one of the four PUCCH resources. .

Alternatively, the corresponding PUCCH resource set information (or the indication information according to the PUCCH classification) and the PUCCH resource index information in the corresponding PUCCH resource set may be encoded in a joint coding method and transmitted and received through one information area. However, the information related to the PUCCH resource set indication may be necessary only when a plurality of PUCCH resource sets are supported within one uplink bandwidth part, and one PUCCH resource set is configured per one uplink bandwidth part If only supported, the PUCCH resource set indication information may be excluded.

When the uplink bandwidth part indication information for PUCCH transmission is included through the downlink allocation downlink control information, the uplink bandwidth part indication information additionally activates the uplink bandwidth part of the corresponding terminal and the uplink bandwidth part switching accordingly. It may be used as uplink bandwidth part switching indication information.

Specifically, according to the corresponding uplink bandwidth part indication information, the corresponding terminal uplinks according to the corresponding uplink bandwidth part indication information after a certain slot (for example, after k slots) from the corresponding downlink allocation downlink control information receiving slot. It can be defined to perform bandwidth part switching. Here, the uplink bandwidth part switching refers to an operation of deactivating the current active uplink bandwidth part and activating a new uplink bandwidth part according to corresponding indication information.

Alternatively, the uplink bandwidth part switching according to the uplink bandwidth part indication information (ie, deactivating the current active uplink bandwidth part) from the corresponding PUCCH transmission slot before a certain slot (eg, before j slots) and in accordance with the indication information. It may be defined to perform an operation (activating the uplink bandwidth part). However, the k or j value is an arbitrary integer value of 0 or more, and may have an arbitrary fixed value, is set by the base station, and transmitted through higher layer signaling, or may be determined according to the capability of the terminal. In addition, when the uplink bandwidth part indication information indicates a current active uplink bandwidth part, the corresponding terminal does not perform the bandwidth part switching operation.

As another method of configuring the PUCCH resource indication information area through the downlink allocation downlink control information, the uplink bandwidth part may be determined implicitly, and accordingly, the PUCCH resource indication of the corresponding downlink allocation downlink control information The information may consist of PUCCH resource set indication information excluding the corresponding uplink bandwidth part indication information + PUCCH resource indication information that the UE will use for HARQ ACK/NACK feedback among PUCCH resources constituting the corresponding PUCCH resource set.

However, at this time, PUCCH resource set indication information + PUCCH resource indication information to be used by the UE for HARQ ACK/NACK feedback among PUCCH resources constituting the corresponding PUCCH resource set may be configured in the same manner as above. When the uplink bandwidth part is determined implicitly, the uplink bandwidth part for the corresponding PUCCH transmission may be defined to be determined as the active uplink bandwidth part of the corresponding terminal in the downlink allocation downlink control information transmission slot. .

As another method for implicitly determining the uplink bandwidth part, the uplink bandwidth part for the corresponding PUCCH transmission is a PUCCH transmission time point of the corresponding terminal, that is, a PUCCH transmission slot (or PUCCH transmission through a plurality of slots), It may be defined to be determined as an active uplink bandwidth part (in a slot where PUCCH transmission starts). As another method for implicitly determining an uplink bandwidth part for PUCCH transmission, an uplink associated with PUCCH transmission for each downlink bandwidth part for which downlink allocation downlink control information for which PDSCH resource allocation is made is transmitted. The bandwidth part can be defined.

Alternatively, an uplink bandwidth part connected for PUCCH transmission may be defined for each downlink bandwidth part in which PDSCH transmission is performed according to corresponding downlink allocation downlink control information. In this case, the base station sets the uplink bandwidth part connected for PUCCH transmission for each downlink bandwidth part set for any terminal, and transmits it to the corresponding terminal through terminal-specific upper layer signaling or L1 control signaling, or implicitly. As (implicit) downlink bandwidth part-uplink bandwidth part connection rule (downlink bandwidth part-uplink bandwidth part association rule) can be defined.

For example, when the same bandwidth part is set for the downlink and the uplink in the TDD cell, respectively, or when the same number of bandwidth parts are set for the downlink and the uplink in the TDD/FDD cell, the downlink of the same index is respectively performed. It can be defined to connect the link bandwidth part and the uplink bandwidth part.

Alternatively, as another method of setting the PUCCH resource set(s) for HARQ ACK/NACK feedback of the terminal, the corresponding PUCCH resource set(s) may be set common to the uplink bandwidth part. That is, in defining PUCCH resources constituting one PUCCH resource set set for any terminal, each PUCCH resource constituting the corresponding PUCCH resource set is a PUCCH resource defined in all uplink bandwidth parts set for the terminal. It can be composed of.

That is, in setting each PUCCH resource constituting the PUCCH resource set(s) for an arbitrary UE at the base station, it may be possible to include uplink bandwidth part information on which the corresponding PUCCH resource is configured.

Accordingly, each PUCCH resource constituting one or a plurality of PUCCH resource set(s) set through the upper layer signaling for any UE has PUCCH format setting information, uplink bandwidth part setting information, and corresponding uplink bandwidth It may be defined as time/frequency domain PUCCH resource configuration information (or additional code-domain resource configuration information) in a part.

In this case, the PUCCH resource indication information transmitted through the downlink allocation downlink control information is PUCCH resource set indication information (for example, PUCCH resource set index information) as in the case of the implicit uplink bandwidth part indication. Among the PUCCH resources constituting the corresponding PUCCH resource set, PUCCH configured by PUCCH resource indication information (for example, PUCCH resource index in the PUCCH resource set) to be used by the UE for HARQ ACK/NACK feedback, or PUCCH constituting the PUCCH resource set(s) Among the resources, the UE may be configured with only PUCCH resource indication information (for example, PUCCH resource index in a PUCCH resource set) to be used for HARQ ACK/NACK feedback.

As in the above, when configuring a PUCCH resource set, when a specific classification-based PUCCH resource set is configured, the specific classification information may replace the PUCCH resource set indication information.

For example, when each PUCCH resource set is separately configured according to PUCCH format, PUCCH duration, or PUCCH payload size, corresponding PUCCH format information, PUCCH duration information, or PUCCH payload size information, respectively, are the PUCCH resources. It can be used instead of the set instruction information.

Alternatively, the corresponding PUCCH resource set information (or the indication information according to the PUCCH classification) and the PUCCH resource index information in the corresponding PUCCH resource set may be encoded in a joint coding method and transmitted and received through one information area. However, the PUCCH resource set indication related information may be necessary only when a plurality of PUCCH resource sets per terminal is supported. When only one PUCCH resource set configuration is supported per UE, the PUCCH resource set indication information may be excluded.

Additionally, when the PUCCH resource configuration information constituting the PUCCH resource set set through higher layer signaling includes uplink bandwidth part configuration information, PUCCH resource allocation indicated by PUCCH resource indication information of downlink allocation downlink control information, respectively. In the case of the explicit uplink bandwidth part indication according to the above, it may be defined to perform an uplink bandwidth part activation or uplink bandwidth part switching operation as an uplink bandwidth part in which the corresponding PUCCH resource is configured in the corresponding terminal.

Additionally, as described above, when one or a plurality of PUCCH resource set(s) is configured for HARQ ACK/NACK feedback of the UE for each uplink bandwidth part, or one or a plurality of PUCCH in common for the uplink bandwidth part When the resource set(s) is set, each PUCCH resource constituting the corresponding PUCCH resource set(s) may be defined to be allocated for aperiodic CSI feedback of the UE.

Specifically, aperiodic CSI reporting of any UE may be triggered by downlink allocation downlink control information by the base station. To this end, in defining a downlink allocation downlink control information format for an arbitrary terminal, an information area for triggering aperiodic CSI reporting of the terminal may be included. When the UE's aperiodic CSI reporting is triggered through the corresponding aperiodic CSI reporting indication information area, HARQ for PDSCH through the corresponding PUCCH resource according to the PUCCH resource allocation information indicated through the corresponding downlink allocation downlink control information Aperiodic CSI reporting information together with ACK/NACK feedback information may be defined to be multiplexed and transmitted. That is, the PUCCH resource set configuration may be a common PUCCH resource set configuration for HARQ ACK/NACK feedback and aperiodic CSI reporting.

Alternatively, the base station/network configures the PUCCH resource set(s) for aperiodic CSI reporting separately from the setting of the PUCCH resource set(s) for HARQ ACK/NACK feedback, so that each terminal through terminal-specific upper layer signaling Can be defined to send to. That is, one or more PUCCH resource set(s) for aperiodic CSI feedback for each terminal may be configured and defined to be transmitted to each terminal through terminal-specific upper layer signaling.

In this case, the PUCCH resource set for the aperiodic CSI feedback may be configured separately for each PUCCH format or for each PUCCH duration in the same manner as the PUCCH resource set configuration method for the HARQ ACK/NACK feedback. Can be configured.

In addition, in setting separate PUCCH resource set(s) for aperiodic CSI reporting, as described above, it is defined to set PUCCH resource set(s) for aperiodic CSI reporting for each uplink bandwidth part, or In common with the uplink bandwidth part, it may be defined to set PUCCH resource set(s) for aperiodic CSI reporting.

When the PUCCH resource set(s) for separate aperiodic CSI reporting is set as described above, PUCCH resource allocation for aperiodic CSI reporting is for HARQ ACK/NACK feedback through downlink allocation downlink control information described above. It can be defined to follow the PUCCH resource allocation method. Additionally, the terminal operation related to the activation or switching of the uplink bandwidth part may also be defined to follow the operation described above.

Additionally, when aperiodic CSI reporting through an uplink grant is triggered, the UE may be defined to include radio channel indication information (ie, PUSCH or PUCCH) to transmit aperiodic CSI reporting information.

The PUCCH resource set setting method and the corresponding PUCCH resource indication method have been described above with reference to FIGS. 2 to 3C. Hereinafter, a method for transmitting and receiving uplink control information from a terminal and a base station and a terminal and a base station will be described in detail with reference to FIGS. 4 to 7.

4 is a diagram illustrating a procedure in which a terminal performs uplink control information in this embodiment.

Referring to FIG. 4, the UE receives configuration information of an uplink control channel resource set for transmission of uplink control information from a base station (S400).

The uplink control channel resource sets may be set for each uplink bandwidth part configured for the terminal. The uplink bandwidth part can be activated through downlink control information.

Specifically, one downlink bandwidth part in any downlink subframe/slot/mini-slot among one or more downlink bandwidth part(s) configured for the corresponding terminal in the serving cell for downlink transmission/reception. Activate it and use it. Similarly, for uplink transmission/reception, one uplink bandwidth part in any uplink subframe/slot/mini-slot of one or more uplink bandwidth part(s) configured for the corresponding terminal in the serving cell Activate and use.

The activation/deactivation (activation/deactivation) indication of the downlink bandwidth part and the uplink bandwidth part for any terminal may be made through downlink control information (DCI) transmitted through the PDCCH. Specifically, activation and deactivation of a downlink bandwidth part may be performed through DL assignment downlink control information including resource allocation information for PDSCH. In addition, activation and deactivation of an uplink bandwidth part may be performed through an uplink grant including resource allocation information for PUSCH.

For example, the terminal may receive bandwidth part (BWP, bandwidth part) setting information for a bandwidth part set consisting of one or more bandwidth parts set for the terminal from the base station. Next, the terminal may receive downlink control information including information indicating one of the one or more bandwidth parts included in the bandwidth part set set by the bandwidth part setting information from the base station. The UE may receive a downlink data channel (PDSCH) or transmit an uplink data channel (PUSCH)/uplink control channel (PUCCH) through one bandwidth part indicated by the downlink control information.

At this time, the bandwidth part setting information may be received from the base station through higher layer signaling (eg, RRC signaling).

In NR, a single PUCCH resource set composed of one or more PUCCH resource(s) for HARQ ACK/NACK feedback for each terminal in a base station/network or a plurality of PUCCH resource sets composed of one or more PUCCH resource(s) are configured. , It can be transmitted to each terminal through UE-specific higher layer signaling.

When a single or a plurality of PUCCH resource set(s) for an arbitrary UE is configured through UE-specific higher layer signaling as described above, the base station for the UE through the PDCCH When the PDSCH scheduling control information is transmitted, the corresponding downlink allocation downlink control information may be transmitted including PUCCH resource indication information for HARQ ACK/NACK feedback of the corresponding UE for receiving the PDSCH.

In addition, the UE determines one uplink control channel resource set among the uplink control channel resource sets included in the uplink control channel resource set configuration information (S410).

When determining an uplink control channel resource set for transmitting uplink control information in step S410, one uplink control channel resource set of one of the uplink control channel resource sets may be determined by the size of the uplink control information.

In addition, the UE determines one uplink control channel resource among the uplink control channel resources constituting the determined set of uplink control channel resources (S420).

In addition, the terminal receives downlink control information including information indicating one uplink control channel resource for uplink control information transmission among uplink control channel resources constituting the uplink control channel resource set from the base station. I can receive it.

At this time, one uplink control channel resource for uplink control information transmission among uplink control channel resources constituting the determined uplink control channel resource set may be indicated from the base station through the downlink control information.

As described above, the UE determines one PUCCH resource among PUCCH resources constituting a single PUCCH resource set configured for the corresponding UE for each PDSCH transmission, or one of a plurality of PUCCH resource sets configured for the corresponding terminal. The PUCCH resource set and one of the PUCCH resources constituting the corresponding PUCCH resource set are determined to determine the PUCCH resource, and the corresponding UE can dynamically allocate the PUCCH resource.

Specifically, as a method of configuring the PUCCH resource set(s) for an arbitrary UE, in configuring PUCCH resource set(s) for each UE for HARQ ACK/NACK feedback of the UE, the uplink set for the UE It may be defined to set a separate resource set(s) for each link bandwidth part.

For example, when uplink bandwidth parts of N (N is a natural number greater than 1) are set as shown in FIG. 3A for an arbitrary UE, each uplink for PUCCH resource indication for HARQ ACK/NACK feedback of the corresponding UE Separate single or multiple PUCCH resource set(s) for each bandwidth part may be set and defined to be transmitted to a corresponding terminal through UE-specific higher layer signaling.

Referring to Figure 3b, the base station is one or a plurality of PUCCH resource set (s) for bandwidth part #1 for the terminal, another or a plurality of PUCCH resource set (s) for BWP #2, ... , Up to one or more PUCCH resource set(s) for each BWP #N, for each bandwidth part, a total of N or more PUCCH resource set(s) groups may be defined. For example, as illustrated in FIG. 3B, PUCCH resource sets included in a specific bandwidth part, for example, BWP #2, may be configured of, for example, first to fourth PUCCH resource sets.

In this case, each PUCCH resource constituting one or a plurality of PUCCH resource sets set through higher layer signaling for each uplink bandwidth part is PUCCH format setting information, time in the corresponding uplink bandwidth part/ It may be defined as frequency domain PUCCH resource configuration information (or additionally code-domain resource configuration information) or the like. For example, as illustrated in FIG. 3B, a specific PUCCH resource set, for example, a second PUCCH resource set, may be composed of first to fourth PUCCH resources.

In addition, when configuring a PUCCH resource set within an arbitrary bandwidth part, when a specific classification-based PUCCH resource set is configured, the specific classification information may replace the PUCCH resource set indication information. For example, when each PUCCH resource set is separately configured according to PUCCH format, PUCCH duration, or PUCCH payload size, corresponding PUCCH format information, PUCCH duration information, or PUCCH payload size information, respectively, are the PUCCH resources. It can be used instead of the set instruction information.

That is, it is defined to configure a separate PUCCH resource set according to the size of the PUCCH payload to be transmitted by the corresponding terminal, that is, the payload size of the uplink control information, and according to the uplink control information payload size to be transmitted by the terminal A PUCCH resource set for PUCCH resource allocation may be defined to be determined. As shown in FIG. 3B, it is defined that only the PUCCH resource indication information (eg ARI, ACK/NACK resource indication) is transmitted through downlink allocation downlink control information, and the UE determines a PUCCH resource set for interpreting it. In the above, it may be defined that the corresponding PUCCH resource set is derived according to the uplink control information payload size (UCI payload size) that the corresponding terminal should transmit through the PUCCH resource allocated through the downlink allocation downlink control information. .

For example, the uplink control information payload size is divided into four regions according to the number of bits, and one of the first to fourth PUCCH resource sets is shown in FIG. 3B according to the number of bits of the uplink control information. It can be defined to protrude.

As shown in FIG. 3C, downlink allocation downlink control information may include PUCCH resource information or PUCCH resource indicator. The PUCCH resource indication information indicates one uplink control channel resource for uplink control information transmission among uplink control channel resources constituting the uplink control channel resource set. For example, as illustrated in FIG. 3B, when the uplink control channel resource set is composed of the first to fourth PUCCH resources, the PUCCH resource indication information illustrated in FIG. 3C may indicate one of the four PUCCH resources. .

In this embodiment, a specific PUCCH resource set setting method and a corresponding PUCCH resource indication can be applied to the various methods described above with reference to FIGS. 2 to 3C.

In addition, the terminal transmits uplink control information through the determined uplink control channel resource (S430).

5 is a diagram illustrating a procedure for a base station to receive uplink control information in this embodiment.

Referring to FIG. 5, the base station transmits uplink control channel resource set configuration information for uplink control information transmission to the terminal (S500).

As described above, the uplink control channel resource sets may be set for each uplink bandwidth part configured for the terminal. The uplink bandwidth part may be activated through downlink control information.

Specifically, one downlink bandwidth part in any downlink subframe/slot/mini-slot among one or more downlink bandwidth part(s) configured for the corresponding terminal in the serving cell for downlink transmission/reception. Activate it and use it. Similarly, for uplink transmission/reception, one uplink bandwidth part in any uplink subframe/slot/mini-slot of one or more uplink bandwidth part(s) configured for the corresponding terminal in the serving cell Activate and use.

The activation/deactivation (activation/deactivation) indication of the downlink bandwidth part and the uplink bandwidth part for any terminal may be made through downlink control information (DCI) transmitted through the PDCCH. Specifically, activation and deactivation of a downlink bandwidth part may be performed through DL assignment downlink control information including resource allocation information for PDSCH. In addition, activation and deactivation of an uplink bandwidth part may be performed through an uplink grant including resource allocation information for PUSCH.

For example, the terminal may receive bandwidth part (BWP, bandwidth part) setting information for a bandwidth part set consisting of one or more bandwidth parts set for the terminal from the base station. Next, the terminal may receive downlink control information including information indicating one of the one or more bandwidth parts included in the bandwidth part set set by the bandwidth part setting information from the base station. The UE may receive a downlink data channel (PDSCH) or transmit an uplink data channel (PUSCH)/uplink control channel (PUCCH) through one bandwidth part indicated by the downlink control information.

At this time, the bandwidth part setting information may be received from the base station through higher layer signaling (eg, RRC signaling).

In NR, a single PUCCH resource set composed of one or more PUCCH resource(s) for HARQ ACK/NACK feedback for each terminal in a base station/network or a plurality of PUCCH resource sets composed of one or more PUCCH resource(s) are configured. , It can be transmitted to each terminal through UE-specific higher layer signaling. When a single or a plurality of PUCCH resource set(s) for an arbitrary UE is configured through UE-specific higher layer signaling as described above, the base station for the UE through the PDCCH When the PDSCH scheduling control information is transmitted, the corresponding downlink allocation downlink control information may be transmitted including PUCCH resource indication information for HARQ ACK/NACK feedback of the corresponding UE for receiving the PDSCH.

In addition, the base station uplinks through one uplink control channel resource of one of the uplink control channel resources constituting one uplink control channel resource set among the uplink control channel resource sets included in the uplink control channel resource set configuration information. Link control information is received (S510).

As described above, an uplink control channel resource set for transmitting uplink control information may determine an uplink control channel resource set of one of the uplink control channel resource sets according to the size of the uplink control information.

As described above, the base station transmits downlink control information including information indicating one uplink control channel resource for uplink control information transmission among uplink control channel resources constituting the uplink control channel resource set. Can be transferred to.

At this time, one of the uplink control channel resources for uplink control information transmission among the uplink control channel resources constituting the uplink control channel resource set may be indicated to the terminal through the downlink control information.

That is, the base station selects one PUCCH resource among PUCCH resources constituting a single PUCCH resource set set for the corresponding terminal for each PDSCH transmission for any terminal, or one of a plurality of PUCCH resource sets set for the corresponding terminal. PUCCH resource to be used for HARQ ACK/NACK feedback in the corresponding UE by selecting one PUCCH resource among the PUCCH resource set and the PUCCH resources constituting the corresponding PUCCH resource set and transmitting it through downlink allocation downlink control information. Can be defined to allocate dynamically.

In this embodiment, a specific PUCCH resource set setting method and a corresponding PUCCH resource indication method are proposed.

First, as a method of configuring the PUCCH resource set(s) for any UE, in configuring PUCCH resource set(s) for each UE for HARQ ACK/NACK feedback of the UE, an uplink bandwidth set for the UE It can be defined to set separate resource set(s) for each part.

For example, when uplink bandwidth parts of N (N is a natural number greater than 1) are set as shown in FIG. 3A for an arbitrary UE, each uplink for PUCCH resource indication for HARQ ACK/NACK feedback of the corresponding UE Separate single or multiple PUCCH resource set(s) for each bandwidth part may be set and defined to be transmitted to a corresponding terminal through UE-specific higher layer signaling.

Referring to Figure 3b, the base station is one or a plurality of PUCCH resource set (s) for bandwidth part #1 for the terminal, another or a plurality of PUCCH resource set (s) for BWP #2, ... , Up to one or more PUCCH resource set(s) for each BWP #N, for each bandwidth part, a total of N or more PUCCH resource set(s) groups may be defined. For example, as illustrated in FIG. 3B, PUCCH resource sets included in a specific bandwidth part, for example, BWP #2, may be configured of, for example, first to fourth PUCCH resource sets.

In this case, each PUCCH resource constituting one or a plurality of PUCCH resource sets set through higher layer signaling for each uplink bandwidth part is PUCCH format setting information, time in the corresponding uplink bandwidth part/ It may be defined as frequency domain PUCCH resource configuration information (or additionally code-domain resource configuration information) or the like. For example, as illustrated in FIG. 3B, a specific PUCCH resource set, for example, a second PUCCH resource set, may be composed of first to fourth PUCCH resources.

However, in configuring a PUCCH resource set in an arbitrary bandwidth part, when a specific classification-based PUCCH resource set is configured, the specific classification information may replace the PUCCH resource set indication information. For example, when each PUCCH resource set is separately configured according to PUCCH format, PUCCH duration, or PUCCH payload size, corresponding PUCCH format information, PUCCH duration information, or PUCCH payload size information, respectively, are the PUCCH resources. It can be used instead of the set instruction information.

That is, it is defined to configure a separate PUCCH resource set according to the size of the PUCCH payload to be transmitted by the terminal, that is, the payload size of the uplink control information, and according to the size of the uplink control information payload to be transmitted by the terminal. A PUCCH resource set for PUCCH resource allocation may be defined to be determined. As shown in FIG. 3B, it is defined that only the PUCCH resource indication information (eg ARI, ACK/NACK resource indication) is transmitted through downlink allocation downlink control information, and the UE determines a PUCCH resource set for interpreting it. In the above, it may be defined that the corresponding PUCCH resource set is derived according to the uplink control information payload size (UCI payload size) that the corresponding terminal should transmit through the PUCCH resource allocated through the downlink allocation downlink control information. .

For example, the uplink control information payload size is divided into four regions according to the number of bits, and one of the first to fourth PUCCH resource sets is shown in FIG. 3B according to the number of bits of the uplink control information. It can be defined to protrude.

As shown in FIG. 3C, downlink allocation downlink control information may include PUCCH resource information or PUCCH resource indicator. The PUCCH resource indication information indicates one uplink control channel resource for uplink control information transmission among uplink control channel resources constituting the uplink control channel resource set. For example, as illustrated in FIG. 3B, when the uplink control channel resource set is composed of the first to fourth PUCCH resources, the PUCCH resource indication information illustrated in FIG. 3C may indicate one of the four PUCCH resources. .

In this embodiment, a specific PUCCH resource set setting method and a corresponding PUCCH resource indication can be applied to the various methods described above with reference to FIGS. 2 to 3C.

6 is a diagram showing the configuration of a base station according to the present embodiments.

Referring to FIG. 6, the base station 600 includes a controller 610, a transmitter 620, and a receiver 630.

The control unit 610 in the method of allocating an uplink control channel resource for any terminal in the next generation/5G radio access network required to perform the present invention, the uplink bandwidth part (Bandwidth part) set for the terminal It controls the operation of the overall controller 610 according to the feature of setting a separate PUCCH resource set.

The transmitting unit 620 and the receiving unit 630 are used to transmit and receive signals, messages, and data necessary to perform the present invention described above.

The transmitter 620 transmits the uplink control channel resource set configuration information for transmitting the uplink control information to the terminal.

The uplink control channel resource sets may be set for each uplink bandwidth part configured for the terminal.

The uplink bandwidth part may be activated through downlink control information.

The receiving unit 630 is through an uplink control channel resource of one of the uplink control channel resources constituting an uplink control channel resource set of one of the uplink control channel resource sets included in the uplink control channel resource set configuration information. Uplink control information is received.

The uplink control channel resource set for transmitting uplink control information may determine an uplink control channel resource set of one of the uplink control channel resource sets according to the size of the uplink control information.

The base station may transmit downlink control information including information indicating one uplink control channel resource for uplink control information transmission among uplink control channel resources constituting the uplink control channel resource set.

At this time, one of the uplink control channel resources for uplink control information transmission among the uplink control channel resources constituting the uplink control channel resource set may be indicated to the terminal through the downlink control information.

7 is a diagram showing the configuration of a terminal according to the present embodiments.

Referring to FIG. 7, the terminal 700 includes a receiver 710, a controller 720, and a transmitter 730.

The receiving unit 710 receives downlink control information, data, and messages from a base station through a corresponding channel.

In addition, the control unit 720 in the method of allocating an uplink control channel resource for any terminal in the next-generation/5G wireless access network required to perform the present invention, the uplink bandwidth part (Bandwidth part) set for the terminal ) To control the operation of the overall user terminal 700 according to the feature of setting a separate PUCCH resource set.

The transmitter 730 transmits uplink control information, data, and a message to the base station through a corresponding channel.

The control unit 720 determines an uplink control channel resource set of one of the uplink control channel resource sets included in the uplink control channel resource set configuration information, and uplink control configuring the determined one uplink control channel resource set The uplink control channel resource of one of the channel resources is determined.

The uplink control channel resource sets may be set for each uplink bandwidth part configured for the terminal.

The uplink bandwidth part may be activated through the downlink control information.

When determining an uplink control channel resource set for transmitting uplink control information, the controller 720 may determine an uplink control channel resource set of one of the uplink control channel resource sets according to the size of the uplink control information. .

The receiver 710 receives configuration information of an uplink control channel resource set for transmission of uplink control information from a base station.

The receiving unit 710 receives downlink control information from the base station including information indicating one uplink control channel resource for transmitting uplink control information among the uplink control channel resources constituting the uplink control channel resource set. do. At this time, one uplink control channel resource for transmitting link control information among the uplink control channel resources constituting the determined set of uplink control channel resources may be indicated from the base station through the downlink control information.

The transmitter 730 transmits the uplink control information through the determined uplink control channel resource.

The standard contents or standard documents mentioned in the above-described embodiments are omitted to simplify the description of the specification and constitute a part of the specification. Therefore, it is to be construed that adding the contents of the above standard contents and a part of the standard documents to the specification or in the claims falls within the scope of the present invention.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain them, 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 interpreted by the claims below, and all technical spirits within the equivalent range should be interpreted as being included in the scope of the present invention.

Claims (20)

In the method for the terminal to transmit the uplink control information,
Receiving configuration information of an uplink control channel resource set for transmitting the uplink control information from a base station;
Determining an uplink control channel resource set of one of the uplink control channel resource sets included in the uplink control channel resource set configuration information;
Determining one uplink control channel resource among uplink control channel resources constituting the determined one uplink control channel resource set; And
And transmitting the uplink control information through the determined uplink control channel resource,
In the step of determining the uplink control channel resource set for transmitting the uplink control information,
A method of determining the one uplink control channel resource set among the uplink control channel resource sets according to the size of the uplink control information. According to claim 1,
The uplink control channel resource sets are configured for each uplink bandwidth part configured for the terminal.
According to claim 2,
Wherein the uplink bandwidth part is activated through downlink control information.
delete According to claim 1,
Adding a step of receiving downlink control information from a base station including information indicating one uplink control channel resource for transmitting uplink control information among uplink control channel resources constituting the uplink control channel resource set. And includes
A method of one of uplink control channel resources for transmitting uplink control information among uplink control channel resources constituting the determined uplink control channel resource set, is indicated by the downlink control information from the base station. .
In the method for the base station to receive the uplink control information,
Transmitting uplink control channel resource set configuration information for transmitting the uplink control information to a terminal; And
The uplink control through the uplink control channel resource of one of the uplink control channel resources constituting the uplink control channel resource set of one of the uplink control channel resource sets included in the uplink control channel resource set configuration information Receiving information;
The uplink control channel resource set for transmitting the uplink control information is a method of determining one of the uplink control channel resource sets among the uplink control channel resource sets according to the size of the uplink control information.
The method of claim 6,
The uplink control channel resource sets are configured for each uplink bandwidth part configured for the terminal.
The method of claim 7,
Wherein the uplink bandwidth part is activated through downlink control information.
delete The method of claim 6,
Transmitting downlink control information including information indicating one uplink control channel resource for uplink control information transmission among uplink control channel resources constituting the uplink control channel resource set to the terminal; Additionally included,
A method of uplink control channel resource constituting the uplink control channel resource set, one uplink control channel resource for uplink control information transmission is indicated to the terminal through the downlink control information.
In the terminal for transmitting the uplink control information,
A receiver configured to receive configuration information of an uplink control channel resource set for transmitting the uplink control information from a base station;
Uplink control channel resources that determine one uplink control channel resource set among the uplink control channel resource sets included in the uplink control channel resource set configuration information and configure the determined one uplink control channel resource set. A control unit for determining one uplink control channel resource; And
And a transmitter for transmitting the uplink control information through the determined uplink control channel resource,
When the control unit determines the uplink control channel resource set for transmitting the uplink control information
A terminal that determines the one uplink control channel resource set among the uplink control channel resource sets according to the size of the uplink control information.
The method of claim 11,
The uplink control channel resource sets are set for each uplink bandwidth part configured for the terminal.
The method of claim 12,
The terminal characterized in that the uplink bandwidth part is activated through downlink control information.
delete The method of claim 11,
The receiving unit receives downlink control information from a base station including information indicating one uplink control channel resource for uplink control information transmission among uplink control channel resources constituting the uplink control channel resource set. and,
A terminal characterized in that one uplink control channel resource for transmitting uplink control information among uplink control channel resources constituting the determined set of uplink control channel resources is indicated through the downlink control information from the base station. .
In the base station receiving the uplink control information,
A transmitter for transmitting configuration information for uplink control channel resource set for transmitting the uplink control information to a terminal; And
The uplink control through the uplink control channel resource of one of the uplink control channel resources constituting the uplink control channel resource set of one of the uplink control channel resource sets included in the uplink control channel resource set configuration information It includes a receiver for receiving information,
The base station in which the uplink control channel resource set for transmitting the uplink control information determines the one uplink control channel resource set among the uplink control channel resource sets according to the size of the uplink control information.
The method of claim 16,
The base station characterized in that the uplink control channel resource sets are configured for each uplink bandwidth part configured for the terminal.
The method of claim 17,
The base station is characterized in that the uplink bandwidth part is activated through downlink control information.
delete The method of claim 16,
The transmitter transmits downlink control information to the terminal including information indicating one uplink control channel resource for transmission of uplink control information among uplink control channel resources constituting the uplink control channel resource set. Transmit,
A base station characterized in that one uplink control channel resource for uplink control information transmission among uplink control channel resources constituting the uplink control channel resource set is indicated to the terminal through the downlink control information.

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