KR20200026414A - Apparatus and method of Sub-PRB based interlacing and resource allocation in NR-Unlicensed - Google Patents

Abstract

The present invention relates to a method for interlacing and resource allocation in a PRB for unlicensed band access in a next generation/5G wireless access network. According to an embodiment of the present invention, provided is a method for performing interlacing in sub-PRB units, which is an interlacing method for an unlicensed band in a next generation wireless network.

Description

Apparatus and method of Sub-PRB based interlacing and resource allocation in NR-Unlicensed}

The present invention proposes a method of interlacing and resource allocation in a PRB for unlicensed band access in a next generation / 5G wireless access network (hereinafter referred to as NR [New Radio]). More specifically, in order to maintain a uniform power spectral density, a new pattern setting method for sub-PRB interlacing and a signaling method to a terminal are proposed.

One embodiment provides an interlacing method for an unlicensed band in a next generation wireless network, wherein the interlacing is performed on a sub-PRB basis.

1 illustrates an example of symbol level alignment among different SCSs.
2 illustrates NR time domain structure depending on subcarrier-spacing.
3 is a diagram illustrating an NR PSS / SS / PBCH block.
4 is a conceptual diagram of SSB burst periodicity.
5 is a diagram illustrating an example of a method of defining an interlacing pattern in a PRB (Localized mapping in the case of pattern number 12/6/4/3/2).
FIG. 6 is a diagram illustrating another example of a method for defining an interlacing pattern in a PRB (distributed mapping in the case of 6/4/3/2 patterns).
7 is a diagram illustrating a configuration of a base station according to another embodiment.
8 is a diagram illustrating a configuration of a user terminal according to another embodiment.

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same components as much as possible even though they are shown in different drawings. In addition, in describing the present invention, if it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

In the present specification, the wireless communication system refers to 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).

A user terminal is a comprehensive concept of a terminal in a wireless communication, and includes a user equipment (UE) in WCDMA, LTE, HSPA, and IMT-2020 (5G or New Radio), as well as a mobile station (MS) and a UT in GSM. It should be interpreted as a concept that includes a user terminal, a subscriber station (SS), and a wireless device.

A base station or cell generally refers to a station for communicating with a user terminal, and includes a Node-B, an evolved Node-B, an eNB, a gNode-B, and a Low Power Node. ), Sector, site, various types of antenna, base transceiver system (BTS), access point, access point (for example, transmission point, reception point, transmission / reception point), relay node ( It is meant to encompass various coverage areas such as relay nodes, mega cells, macro cells, micro cells, pico cells, femto cells, remote radio heads (RRHs), radio units (RUs), and small cells.

Since the various cells listed above have a base station for controlling each cell, the base station may be interpreted in two meanings. 1) the device providing the mega cell, the macro cell, the micro cell, the pico cell, the femto cell, the small cell in relation to the radio area, or 2) the radio area itself. In 1) all devices that provide a given wireless area are controlled by the same entity or interact with each other to cooperatively configure the wireless area to the base station. According to the configuration of the wireless area, a point, a transmission point, a transmission point, a reception point, and the like become one embodiment of a base station. In 2), the base station may indicate the radio area itself that receives or transmits a signal from a viewpoint of a user terminal or a neighboring base station.

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

In the present specification, the user terminal and the base station are used in a comprehensive sense as two entities (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 the terms or words specifically referred to. Do not.

Here, the uplink (Uplink, UL, or uplink) means a method for transmitting and receiving data to the base station by the user terminal, and the downlink (Downlink, DL, or downlink) is transmitted and received data to the user terminal by the base station It means the way.

The uplink transmission and the downlink transmission may use a time division duplex (TDD) scheme that is transmitted using different times, and a frequency division duplex (FDD) scheme, a TDD scheme and a FDD scheme, which are transmitted using different frequencies. Mixed mode may be used.

In addition, in a wireless communication system, uplink and downlink are configured based on one carrier or a pair of carriers to configure 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), a physical downlink shared channel (PDSCH), a physical uplink shared channel (PUSCH), and the like. It is composed of the same data channel to transmit data.

Downlink (downlink) may mean a communication or communication path from the multiple transmission and reception points to the terminal, uplink (uplink) may mean a communication or communication path from the terminal to the multiple transmission and reception points. In this case, in the downlink, the transmitter may be part of multiple transmission / reception points, and the receiver may be part of the terminal. In addition, in uplink, a transmitter may be part of a terminal, and a receiver may be part of multiple transmission / reception points.

Hereinafter, a situation in which a signal is transmitted and received through a channel such as a PUCCH, a PUSCH, a PDCCH, and a PDSCH may be described in the form of 'sending and receiving a PUCCH, a PUSCH, a PDCCH, and a PDSCH.'

Meanwhile, high layer signaling described below includes RRC signaling for transmitting RRC information including an RRC parameter.

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

There is no limitation on the multiple access scheme applied in the 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, the NOMA includes a sparse code multiple access (SCMA) and a low density spreading (LDS).

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

In the present specification, a MTC terminal may mean a terminal supporting low cost (or low complexity) or a terminal supporting coverage enhancement. Alternatively, in the present specification, the MTC terminal may mean a terminal defined in a specific category for supporting low cost (or low complexity) and / or coverage enhancement.

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

In the present specification, a NB-IoT (NarrowBand Internet of Things) terminal refers to a terminal that supports radio access for cellular IoT. The objectives of the NB-IoT technology include improved indoor coverage, support for large scale low speed terminals, low sensitivity, low cost terminal cost, low power consumption, and optimized network architecture.

As a typical usage scenario in New Radio (NR), which is recently discussed in 3GPP, enhanced Mobile BroadBand (eMBB), Massive Machine Type Communication (MMTC), and Ultra Reliable and Low Latency Communication (URLLC) are being raised.

In this specification, frequencies, frames, subframes, resources, resource blocks, regions, bands, subbands, control channels, data channels, synchronization signals, various reference signals, various signals, and various messages related to NR (New Radio). May be interpreted as meaning used in the past or present, or various meanings used in the future.

Meanwhile, the following description will be given for the technical idea based on two nodes of the terminal and the base station, but this is only for convenience of understanding, and the same technical idea may be applied between the terminal and the terminal. For example, the base station described below has been described and described by way of example to disclose a single node for communicating with the terminal, it may be replaced with other terminals or infrastructure devices for communicating with the terminal as needed.

That is, the present technical concept may be applied to not only communication between the terminal and the base station, but also device to device, side link communication, and vehicle communication (V2X). In particular, the present invention may be applied to the terminal-to-terminal communication in the next-generation radio access technology, and the terms such as a signal and a channel of the present specification may be variously modified and applied according to the type of communication between terminals.

For example, the terms PSS and SSS may be changed and applied to a primary D2D synchronization signal (PSSS) and a secondary D2D synchronization signal (SSSS) in terminal-to-device communication, respectively. In addition, the channel for transmitting broadcast information such as the above-described PBCH is changed to PSBCH, the channel for transmitting data in sidelinks such as PUSCH and PDSCH is converted into PSSCH, and the channel for transmitting control information such as PDCCH and PUCCH is changed to PSCCH. Can be applied. On the other hand, in the terminal-to-terminal communication, a discovery signal is required, which is transmitted and received through the PSDCH. However, it is not limited to these terms.

Hereinafter, the technical concept will be described as an example of communication between the terminal and the base station, but the base station node may be replaced with another terminal as necessary, and thus the technical concept may be applied.

[5G NR (New Rat)]

3GPP supports a frame structure based on multiple subcarriers in the NR frame structure.

Here, the default SCS is 15 kHz, which supports a total of five SCS types at 15 kHz x 2μ. SCS values according to μ values are shown in Table 1 below.

As shown in FIG. 1, slot lengths may vary depending on numerology. That is, the shorter the slot length, the larger the SCS. In addition, slots defined in NR are defined based on 14 OFDM symbols.

- NR Time domain structure

NR supports the following structures on the time axis: Here, the difference from the existing LTE, the basic scheduling unit is changed to a slot in the NR. In addition, regardless of subcarrier-spacing, the slot has 14 OFDM symbols as shown in FIG. 2. On the other hand, it supports a non-slot structure consisting of 2, 4, and 7 OFDM symbols, which are smaller scheduling units. The non-slot structure may be utilized as a scheduling unit for URLLC service.

■ Radio frame: Fixed 10ms regardless of numerology

■ Subframe: Fixed 1ms as a reference for time duration

   ◆ Do not use for data / control scheduling unit

■ Slot: Mainly for eMBB

   ◆ Include 14 OFDM symbols

■ Non-slot (i.e. mini-slot)

   ◆ Mainly for URLLC, but not limited to URLLC only

   ◆ Include 2, 4, or 7 OFDM symbols

■ One TTI duration

   ◆ A Time duration for data / control channel transmission

   ◆ A number of OFDM symbols per a slot / non-slot in the time main

Unlike LTE, NR SSB (Synchronization Signal Block) can be transmitted in various subcarrier-spacing and is always transmitted like PBCH. In addition, the minimum required transmission band is defined for each subcarrier-spacing.

- Below 6 GHz

■ "15kHz SCS and 5MHz" (except some specific band (e.g. band n41, n77 and n78 have 30SCS and 10MHz)

- Above 6 GHz

■ "120kHz SCS and 10MHz"

In addition, subcarrier-spacing is different for each frequency band.

- SCS supported for bands below 1 GHz

■ 15 kHz, 30 kHz and 60 kHz

- SCS supported for bands between 1 GHz and 6 GHz

■ 15 kHz, 30 kHz, 60 kHz

- SCS supported for bands above 24GHz and below 52.6GHz

■ 60 kHz, 120 kHz

■ 240kHz is not applicable for data

The SSB is transmitted by defining an SSB burst set rather than a single type. Basically, SSB burst set is 5ms regardless of numerology, and the maximum number L of SSB blocks that can be transmitted in the set is as follows.

- For frequency range up to 3 GHz, L is 4

- For frequency range from 3 GHz to 6 GHz, L is 8

- For frequency range from 6 GHz to 52.6 GHz, L is 64

In addition, the period in which the SSB burst set defined above is transmitted is additionally set to RRC to indicate to the UE.

A terminal performing initial access assumes default = 20ms cycle and updates system information after synchronization is acquired. The SSB burst periodicity value is then last updated by the gNB.

Currently, NR-U is considering stand-alone design for unlicensed bands. In addition, uplink is also considering introducing a new numerology such as subcarrier-spacing = 60 kHz. At this time, since the number of PRBs in a given bandwidth may be relatively small, interlacing should also be additionally considered in the PRB, but a specific method is missing.

The present invention proposes an interlacing and resource allocation method in a PRB for unlicensed band access in the next generation / 5G NR. More specifically, in order to maintain a uniform power spectral density, a new pattern setting method for sub-PRB interlacing and a signaling method to a terminal are proposed.

Currently, NR is conducting a Rel-16 Study Item called 'NR-based Access to Unlicensed Spectrum' for unlicensed band access. The agreement related to uplink channel and signal for NR-U is as follows. (RAN1 # 94 Chairman's notes)

Agreement:

● For scenarios in which a block-interlaced waveform is used for UL transmission, a PRB-based block-interlace design has been identified as beneficial at least for 15 and 30 kHz SCS, and potentially for 60 kHz SCS

o Link budget limited cases with given PSD constraint

    ■ It is observed that power boosting gains decrease with increasing SCS

o As one option to efficiently meet the occupied channel bandwidth requirement

o Comparatively less specification impact than Sub-PRB interlace design

● Design for 60 kHz requires further discussion, e.g., sub-PRB vs. PRB-based block interlace designs

● The following has been observed for sub-PRB block interlace designs

o In some scenarios sub-PRB interlacing can be beneficial in terms of power boosting

    ■ FFS: scenario details, e.g., small resource allocations

o Sub-PRB interlace design has at least the following specification impact:

    ■ Reference signal design (e.g., DMRS)

    ■ Channel estimation aspects

    ■ Resource allocation

Agreement:

● It has been identified as beneficial to support a block-interlaced structure in which the number of interlaces (M) decreases with increasing SCS, and the nominal number of PRBs per interlace (N) is similar for each SCS (in a given bandwidth) at least for 15 and 30 kHz SCS, and potentially 60 kHz depending on supported interlace design

● FFS: M and N for each supported SCS

FFS: 60 kHz in case a sub-PRB interlace is introduced

Basically, NR-U performs PUSCH transmission through resource allocation based on PRB interlacing in order to maintain a uniform power spectral density (PSD) during uplink resource allocation.

However, when the number of available PRBs is small due to an increase in subcarrier-spacing or a small allocated bandwidth (e.g. BWP), the effect of PRB-based interlacing may decrease.

As a way of overcoming this, the 'Rel-16 NR based ace to unlicensed spectrum' Study Item is currently considering the introduction of sub-PRB based interlacing. In particular, this sub-PRB interlacing is considered at 60kHz subcarrier-spacing.

The present invention describes a method for defining an interlacing pattern and a signaling method in a PRB.

Option 1. PRB  In order to define my interlacing pattern, interlacing unit, tile Turn, subcarrier allocation  of  It can be defined flexibly.

In this proposal, we propose a specific method for setting interlacing pattern in PRB. Since the PRB basically consists of 12 subcarriers, the interlacing unit, pattern, and subcarrier allocation mode shown in Table 2 below can be defined.

Since the interlacing pattern is the number of interlacing patterns present in the PRB, the number of subcarriers for each pattern is inversely proportional to the number of patterns. For example, as shown in FIG. 5, an interlacing pattern for the table may be displayed. That is, since there are 12 subcarriers in the PRB, the total number of interlacing patterns is inversely proportional to the number of subcarriers constituting the sub-PRB interlacing pattern.

For example, if the total number of patterns is four, the number of subcarriers constituting an interlacing pattern is three. The same applies to the other patterns.

Next, localized mapping and distributed mapping can be applied differently. For example, FIG. 5 shows Localized mapping. In other words, this means that consecutive subcarriers are bundled and applied in a single interlacing unit. No. Except of interlacing pattern = 12, in other cases, subcarriers constituting the interlacing unit can be mapped contiguous / non-contiguous. In general, in the distributed mode, a method of allocating at equal intervals may be defined, and the method may be defined as shown in FIG. 6.

Scheme 2. Sub-for Uplink Resource Allocation PRB  Interlacing pattern information to the terminal indication  Can be.

The present proposal proposes a method of transmitting sub-PRB interlacing information to a UE before specific PUSCH resource allocation based on the interlacing pattern in the sub-PRB defined above. Resource allocation indications in the Sub-PRB may be conveyed in the following manner. The sub-PRB pattern by Alts below may be transmitted before or simultaneously with grant information for PUSCH allocation. The following configuration information may include localized / distributed mapping information of the above-mentioned 'Method 1'.

■ Alt.1: RRC (interlacing pattern set) + DCI (interlacing assignment)

- An interlacing pattern set is defined to the terminal through RRC signaling. Specifically, No. of interlacing unit or No. You can configure the set by selecting some of the interlacing patterns. For example, No. of interlacing unit = {1,2,3} can be selected and indicated to the terminal. This setting can be set as a field or integrated with existing PRB based interlacing.

- Through DCI signaling, one of the interlacing pattern sets configured through RRC may be finally selected and referred to. In this case, the indication bit may be defined as N bit in proportion to or fixed to the RRC set range.

■ Alt.2: single interlacing pattern configuration (RRC)

- One of the interlacing pattern segments is selected and defined to the terminal through RRC signaling. Specifically, No. of interlacing unit or No. You can choose one of the interlacing patterns. For example, No. of interlacing unit = {1} or {2} or {3} or {4} or {6} by selecting one can be indicated to the terminal.

■ Alt.3: Predefined interlacing pattern

- In this Alt., This means selecting a predefined pattern without specific signaling. That is, it means that a specific pattern is selected based on information such as subcarrier-spacing, class of UE, whether to transmit Jan, MCS level, PAPR (Cubit Metric), and BWP / Suband size.

- Example 1) You can set the sub-PRB interlacing pattern category with SCS = 15kHz → No pattern, SCS = 30kHz → 2 patterns, SCS = 60kHz → 4 patterns. In this case, the sub-PRB interlacing pattern may also be set in an increasing order / decreasing order form.

Example 2) The sub-PRB interlacing pattern can be determined according to the size of the NR-U BWP. Sub-PRB interlacing pattern can be set according to NR-U BWP / Subband bandwidth with B _{BWP ≤} BW_1 → 12 patterns, BW_1 <B _{BWP ≤} BW_2 → 6 patterns, BW_2 <B _{BWP ≤} BW_3 → 4 patterns. At this time, the sub-PRB interlacing pattern may also be set in an increasing order / decreasing order form. The same principle applies to subband splitting.

Scheme 3. Sub-PRB interlacing based resource allocation is performed for uplink resource allocation.

This proposal describes a detailed resource allocation method based on the setting of the interlacing pattern in sub-PRB of 'Method 2'.

If the interlacing pattern for resource allocation in the PRB is configured, a specific interlacing pattern allocation method and signaling should be made to the UE in the actual PRB. It is assumed that the proposed sub-PRB interlacing-based resource allocation scheme is basically applied to uplink PRB resources transmitted by the UE.

Alt.1: refers to the sub-PRB interlacing pattern

- There can be up to 12 interlacing patterns in a PRB. In this proposal, it means directly referring to the interlacing pattern. For example, if four interlacing patterns are currently set in the PRB, the following allocation can be performed for the dual terminals. In this case, the pattern index may be set or shifted according to the increase of the subcarrier index. That is, the UE may signal all combinations of all sub-PRB interlacing pattern assignments. The method may be performed in a bit-map format or may be referred to as 'N' bit in the case of a combination.

Example 1 (when the combination designation 'N' bit is applied): {# 0}, {# 1}, {# 2}, {# 3}, {# 0, # 1}, {# 0, # 2}, {# 0, # 3}, {# 1, # 2}, {# 1, # 3}, {# 2, # 3}, {# 0, # 1, # 2},... , {# 0, # 1, # 2, # 3}

Example 2 (when applying the bit-map method): '1100'-> interlacing pattern {# 0, # 1}, '1010'-> interlacing pattern {# 0, # 2},... , '1111'-> interlacing pattern {# 0, # 1, # 2, # 3},

Alt.2: Start sub- PRB interlace pattern index + length

- In this proposal, it means the starting sub-PRB interlacing pattern index to which data is mapped and its length. For example, if start index: # 2 and length: 2 are defined, the terminal should allocate data to interlacing patterns # 2 and # 3. In addition, the start sub-PRB interlace pattern index may be defined to mean a start point of a subcarrier unit. In this case, since only 12 subcarriers exist in the PRB, a 4-bit may refer to a sub-PRB interlace pattern or a starting point of a unit. In addition, the subcarrier offset may be defined in addition to the allocated start sub-PRB interlace pattern index.

Option 3-1. It can be set by changing the sub-PRB interlacing pattern for each PRB.

This proposal includes a method for supporting flexible configuration in applying the interlacing pattern allocation index in units of PRBs to all PUSCH PRBs in the aforementioned scheme 3.

Signaling for the sub-PRB interlacing pattern change below may add a new field through RRC or DCI. As the configuration information, sub-PRB interlacing pattern shift / hopping ON / OFF, change pattern, and the like may be defined.

■ Alt.1: sub-PRB interlacing pattern shift / hopping by PRB index

- In this proposal, it means that the first UE shifts the sub-PRB interlacing pattern in specific units based on the PRB index on which the PUSCH is performed. For example, you can do the following: In this case, it is assumed that the total number of sub-PRB interlacing patterns is 4 and the shift interval is 1. In this case, the shift value itself may be defined as a specific hopping value. In addition, the initial PUSCH resource allocation is performed based on PRB # 0, and the allocation of the remaining PRBs is shifted based on PRB # 0.

■ Alt.2: Change index of sub-PRB interlacing pattern for each PRB

- In this proposal, it means that the starting index position of sub-PRB interlacing for each PRB is directly referred to as RRC. For example, the starting point may be set to sub-PRB interlacing pattern # 0 in Subband # 1, sub-PRB interlacing pattern # 1 in Subband # 2, and sub-PRB interlacing pattern # 2 in Subband # 3.

■ Alt.3: Apply subcarrier offset of sub- PRB interlacing pattern by PRB index

- This proposal may be applied as in the aforementioned Alt.1-2 or separately. That is, sub-PRB interlacing may be performed based on a common subcarrier offset value for each allocated PRB, or the value may be applied in increasing / decreasing order form for each PRB. The principle of the actual mapping is that the pattern of failure allocation is shifted like Alt.1.

The present invention proposes a method of interlacing and resource allocation in a PRB for unlicensed band access in a next generation / 5G wireless access network (hereinafter referred to as NR [New Radio]). More specifically, in order to maintain a uniform power spectral density, a new pattern setting method for sub-PRB interlacing and a signaling method to a terminal are proposed.

7 is a diagram illustrating a configuration of a base station 1000 according to another embodiment.

Referring to FIG. 7, the base station 1000 according to another embodiment includes a controller 1010, a transmitter 1020, and a receiver 1030.

The control unit 1010 in the interlacing method for the unlicensed band in the next generation wireless network required to carry out the present invention described above, the overall base station according to the method characterized in that for performing interlacing in units of sub-PRB Control the operation of 1000.

The transmitter 1020 and the receiver 1030 are used to transmit and receive signals, messages and data necessary for carrying out the above-described present invention.

8 is a diagram illustrating a configuration of a user terminal 1100 according to another embodiment.

Referring to FIG. 8, the user terminal 1100 according to another embodiment includes a receiver 1110, a controller 1120, and a transmitter 1130.

The receiver 1110 receives downlink control information, data, and a message from a base station through a corresponding channel.

In addition, the control unit 1120 in the interlacing method for the unlicensed band in the next-generation wireless network required to carry out the above-described present invention, the overall interworking according to the method characterized in that performing the interlacing in units of sub-PRB Controls the operation of the user terminal 1100.

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

In addition, terms such as "system", "processor", "controller", "component", "module", "interface", "model", "unit" generally refer to computer-related entity hardware, a combination of hardware and software, It may mean software or running software. For example, the foregoing components may be, but are not limited to, a process driven by a processor, a processor, a controller, a control processor, an object, an execution thread, a program, and / or a computer. For example, both an application running on a controller or processor and a controller or processor can be components. One or more components can be within a process and / or thread of execution and a component can be located on one system or deployed on more than one system.

The standard contents or standard documents mentioned in the above embodiments are omitted to simplify the description of the specification and form a part of the present specification. Accordingly, the addition of the contents of the above standard and part of the standard documents to the specification or the description in the claims should be interpreted as falling 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 may make various modifications and changes 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 describe 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 interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

Claims (1)

In the interlacing method for the unlicensed band in the next generation wireless network,
Method for interlacing in the sub-PRB unit.

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