Sub-band setting method and apparatus for full duplex communication in wireless communication system

Abstract

The present disclosure provides a method and apparatus for performing downlink transmission and / or uplink transmission in a wireless communication system. A base station transmits, to a terminal, sub-band setting information for a full duplex communication (full duplex). The terminal performs downlink reception or uplink transmission through a sub-band based on received sub-band setting information, the sub-band setting information including frequency resource setting information and time resource setting information, the frequency resource of the sub-band set based on the frequency resource setting information is set based on a common resource block (CRB), and the time resource setting information includes time resource setting information and time resource setting information, and the frequency resource of the sub-band set based on the time resource setting information is set based on a common resource block (CRB). The time resource of the sub-band set on the basis of the time resource setting information is set on the basis of at least one sub-band pattern having a period.

Description

Technical Field

[0001] This specification relates to the 3GPP 5G NR system. Background Art

[0002] As the trend of the times develops, more and more communication devices require larger communication traffic, requiring wireless broadband communication that is improved over the existing LTE system, namely the next-generation 5G system. In this next-generation 5G system called NewRAT, communication scenarios are divided into enhanced mobile broadband (Enhanced Mobile BroadBand, eMBB) / ultra-reliability and low-latency communication (URLLC) / massive machine-type communications (mMTC) and so on.

[0003] Among them, eMBB is the next-generation mobile communication scenario with the characteristics of high spectrum efficiency, high user experience data rate, high peak data rate, etc.; URLLC is the next-generation mobile communication scenario with the characteristics of ultra-reliability, ultra-low latency, ultra-high availability, etc. (for example, V2X, emergency services, remote control); mMTC is the next-generation mobile communication scenario with the characteristics of low cost, low energy consumption, short data packets, and massive connections (for example, IoT). Summary of the invention

[0004] Technical issues The disclosure of this specification aims to provide a method and apparatus for a base station and a terminal to perform downlink transmission and / or uplink transmission and / or reception through a subband for full-duplex communication in a wireless communication system.

[0005] Technical Solution An embodiment of the present specification provides a method, in which, in a wireless communication system, a terminal receives subband setting information for full-duplex communication (full duplex), performs downlink reception or uplink transmission through a subband based on the received subband setting information, the subband setting information includes frequency resource setting information and time resource setting information, the frequency resources of the subband set based on the frequency resource setting information are set based on a common resource block (CRB), and the time resources of the subband set based on the time resource setting information are set based on at least one subband mode with a period.

[0006] In addition, an embodiment of the present invention provides a method, in which, in a wireless communication system, a base station transmits subband setting information for full duplex communication; and performs downlink transmission or uplink reception through a subband based on the transmitted subband setting information, the subband setting information includes frequency resource setting information and time resource setting information, the frequency resource of the subband set based on the frequency resource setting information is set based on a common resource block (CRB), and the time resource of the subband set based on the time resource setting information is set based on at least one subband pattern having a period. In addition, an embodiment of the present invention provides a communication device, which includes: at least one processor in a wireless communication system; and at least one memory for storing instructions and operably electrically connected to the at least one processor, and the at least one processor executes the instructions, and the operations executed include: receiving subband setting information for full-duplex communication, and performing downlink reception or uplink transmission through the subband based on the received subband setting information, the subband setting information includes frequency resource setting information and time resource setting information, the frequency resources of the subband set based on the frequency resource setting information are set based on a common resource block (CRB), and the time resources of the subband set based on the time resource setting information are set based on at least one subband mode with a period.

[0007] In addition, an embodiment of the present invention provides a base station, which includes: at least one processor in a wireless communication system; and at least one memory for storing instructions and operably electrically connected to the at least one processor, and the at least one processor executes the instructions, and the operations executed include: receiving subband setting information of full-duplex communication, and performing downlink reception or uplink transmission through the subband based on the received subband setting information, the subband setting information includes frequency resource setting information and time resource setting information, the frequency resources of the subband set based on the frequency resource setting information are set based on a common resource block (CRB), and the time resources of the subband set based on the time resource setting information are set based on at least one subband mode with a period.

[0008] The sub-band setting information may further include sub-carrier spacing information (SCS) and cyclic prefix information.

[0009] The frequency resources of the sub-band are set i) based on the frequency position information of the upper end, the center or the lower end and the number of resource blocks (RB), or ii) based on the starting RB information and the number of RBs, or iii) based on the starting RB information and the ending RB information. Alternatively, the frequency resources of the sub-band are set based on a resource indication value (RIV) from which the starting RB and the number of RBs can be derived.

[0010] The number of the at least one sub-band pattern and the period of each sub-band pattern are determined based on information included in a tdd-UL-DL-ConfigurationCommon information element corresponding to a time division duplex (TDD) uplink-downlink configuration.

[0011] In one aspect, the time resource of the sub-band is set based on a duration based on the number of symbols from specific symbols of each sub-band pattern.

[0012] The sub-band setting information further includes a sub-band list including the sub-bands, and at least one sub-band included in the sub-band list may be activated.

[0013] The sub-band setting information is received through terminal-specific or cell-specific upper layer signaling, and the sub-band is activated through downlink control information (DCI).

[0014] In addition, the sub-band configuration information may also be received via downlink control information (DCI).

[0015] On the one hand, the sub-band setting may be released via the terminal-specific or cell-specific upper layer signaling.

[0016] Beneficial Effects According to the disclosure of the present specification, downlink transmission and / or uplink transmission and / or uplink transmission can be efficiently performed through a subband for full duplex communication in a wireless communication system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A diagram illustrating a wireless communication system.

[0018] Figure 2 The structure of the radio frame used by NR is shown.

[0019] Figure 3a to Figure 3c An exemplary diagram illustrating an exemplary architecture for wireless communication services.

[0020] Figure 4 Shows the time slot structure of the NR frame.

[0021] Figure 5 Examples of subframe types in NR are shown.

[0022] Figure 6 The structure of a self-contained time slot is shown.

[0023] Figure 7a to Figure 7b A generalized example of subband full duplex communication is shown.

[0024] Figure 8 An example of time slot configuration for subband full-duplex communication (full duplex) according to an embodiment of the present specification is shown.

[0025] Fig. 9 Another example of time slot configuration for subband full-duplex communication according to an embodiment of the present specification is shown.

[0026] Fig.10 The following describes an operation method of a terminal according to an embodiment of the present specification.

[0027] Fig.11 The following describes an operation method of a base station according to an embodiment of the present specification.

[0028] Fig.12 A device according to an embodiment of the present specification is shown.

[0029] Fig.13 A block diagram showing the structure of a terminal according to an embodiment of the present specification.

[0030] Fig.14 A block diagram showing the structure of a processor that implements the disclosure of this specification.

[0031] Fig.15 To show in detail Fig.12 The first device of the transceiver or Fig.13 Block diagram of the receiving and transmitting part of the device shown. DETAILED DESCRIPTION

[0032] It should be noted that the technical terms used in this specification are only used to describe specific embodiments and are not intended to limit the content of this specification. In addition, as long as they are not specifically defined as different meanings in the present invention, the technical terms used in this specification should be interpreted as the meanings commonly understood by ordinary technicians in the field to which this specification discloses, and should not be interpreted as overly broad meanings or overly narrow meanings. In addition, when the technical terms used in the specification are inappropriate technical terms that cannot accurately express the content and ideas of this specification, they must be replaced with technical terms that can be correctly understood by technicians. In addition, the common terms used in this specification must be interpreted according to the pre-defined content or context, and should not be interpreted as overly narrow meanings.

[0033] In addition, as long as the context does not clearly indicate otherwise, singular expressions used in this specification include plural expressions. In this application, terms such as "consisting of" or "having" should not be interpreted as necessarily including all of the multiple constituent elements or multiple steps recorded in the specification, but should be interpreted as not including some of the constituent elements or some of the steps, or may also include additional constituent elements or steps.

[0034] In addition, the terms including ordinal numbers such as 1 and 2 used in this specification can be used to describe various constituent elements, but the constituent elements shall not be limited by the terms. The terms are only used to distinguish one constituent element from another constituent element. For example, without exceeding the scope of the rights, the first constituent element can be named as the second constituent element, and similarly, the second constituent element can also be named as the first constituent element.

[0035] When a certain component is mentioned as being “connected” or “connected to” another component, it may be directly connected or connected to the other component, or other components may be present in between. Conversely, when a certain component is mentioned as being “directly connected” or “directly connected to” another component, it should be understood that no other components are present in between.

[0036] The following is a detailed description of the embodiments with reference to the accompanying drawings. Regardless of the figure numbers, the same or similar components are assigned the same figure numbers and their repeated descriptions are omitted. In addition, in describing the content of the present invention, when it is judged that the specific description of the relevant known technology may confuse the gist of this specification, the detailed description is omitted. In addition, it should be noted that the drawings are only used to make it easier to understand the content and ideas of this specification, and should not be interpreted as the content and ideas of this specification are limited by the drawings. The content and ideas of this specification should be interpreted as extending to all changes, equivalents and substitutes in addition to the drawings.

[0037] In this specification, "A or B" may mean "only A", "only B", or "all A and B". In other words, in this specification, "A or B" may be interpreted as "A and / or B". For example, in this specification, "A, B or C" may mean "only A", "only B", "only C", or "any combination of A, B and C".

[0038] A slash ( / ) or a comma used in this specification may mean "and / or". For example, "A / B" may mean "A and / or B". Thus, "A / B" may mean "only A", "only B", or "all of A and B". For example, "A, B, C" may mean "A, B, or C".

[0039] In the present specification, “at least one of A and B” may mean “only A”, “only B” or “all of A and B”. In addition, in the present specification, the expression “at least one of A or B” or “at least one of A and / or B” may be interpreted the same as “at least one of A and B”.

[0040] In addition, in the present specification, “at least one of A, B and C” may mean “only A”, “only B”, “only C”, or “any combination of A, B and C”. In addition, “at least one of A, B or C” or “at least one of A, B and / or C” may mean “at least one of A, B and C”.

[0041] In addition, brackets used in this specification may mean "for example". Specifically, when identified as "control information (PDCCH)", "PDCCH (physical downlink control channel)" may be proposed as an example of "control information". In other words, the "control information" of this specification is not limited by "PDCCH", and "PDDCH" may be proposed as an example of "control information". In addition, when identified as "control information (i.e., PDCCH)", "PDCCH" may be proposed as an example of "control information".

[0042] In this specification, the technical features described separately in one drawing can be implemented independently or simultaneously.

[0043] In the accompanying drawings, UE (User Equipment) is exemplarily shown, but the UE shown may also be replaced by a term such as a terminal (Terminal), ME (Mobile Equipment), etc. In addition, the UE may be a portable device such as a notebook computer, a mobile phone, a PDA (Personal Digital Assistant), a smart phone (Smart Phone), a multimedia device, etc., or a non-portable device such as a PC, a vehicle-mounted device, etc.

[0044] In the following, UE is used as an example of a device capable of wireless communication (e.g., a wireless communication device, a wireless device, or a wireless equipment). The operations performed by UE can be performed by any device capable of wireless communication. It may also be referred to as a device capable of wireless communication, a wireless communication device, a wireless device, or a wireless equipment, etc.

[0045] The term base station used below generally refers to a fixed station that communicates with wireless devices, and can be used as a broad term including eNodeB (evolved-NodeB), eNB (evolved-NodeB), BTS (Base TransceiverSystem), access point (Access Point), gNB (Next generation NodeB), RRH (remote radiohead), TP (transmission point), RP (reception point), relay, etc.

[0046] This specification uses the LTE system, LTE-A system and NR system to describe the embodiments, but these embodiments can also be applied to any communication system to which the definitions are applicable.

[0047] <Wireless Communication System> Benefiting from the success of LTE (long term evolution) / LTE-Advanced (LTE-A) used for the fourth generation mobile communication, the fifth generation (so-called 5G) mobile communication as the next generation has been commercialized and subsequent research is underway.

[0048] The fifth generation of mobile communications defined by the International Telecommunication Union (ITU) refers to providing a maximum data transmission speed of 20Gbps and a minimum perceptible transmission speed of more than 100Mbps at any location. The official name is "IMT-2020".

[0049] Three major usage scenarios were proposed in the ITU, such as eMBB (enhanced Mobile BroadBand), mMTC (massive Machine Type Communication) and URLLC (Ultra Reliable and Low Latency Communications).

[0050] URLLC involves application scenarios that require high reliability and low latency. For example, autonomous driving, factory automation, and augmented reality services require high reliability and low latency (for example, latency below 1ms). The current latency of 4G (LTE) is statistically 21-43ms (best 10%) and 33-75ms (median). This is not enough to support services that require latency below 1ms. Then, eMBB usage scenarios involve usage scenarios that require mobile ultra-broadband.

[0051] That is, the fifth-generation mobile communication system supports higher capacity than the current 4G LTE, can increase the density of mobile broadband users, and supports D2D (Device to Device), high stability and MTC (Machine type communication). In order to better realize the Internet of Things, 5G research and development also aims at lower standby time and lower power consumption than 4G mobile communication systems. For this 5G mobile communication, a new radio access technology (new radio access technology: New RAT or NR) can be proposed.

[0052] The NR frequency band can be defined as two types of frequency ranges (FR1, FR2). The values ​​of the frequency ranges can be changed. For example, the frequency ranges of the two types (FR1, FR2) can be shown in Table 1 below. For ease of description, FR1 in the frequency range used by the NR system can mean "sub 6GHz range", and FR2 can mean "above 6GHz range", which can be called millimeter wave (mmW).

[0053] [Table 1]

[0054] The frequency range value of the NR system can be changed. For example, FR1, as shown in Table 1, can include a frequency band from 410 MHz to 7125 MHz. That is, FR1 can include a frequency band above 6 GHz (or 5850, 5900, 5925 MHz, etc.). For example, the frequency band above 6 GHz (or 5850, 5900, 5925 MHz, etc.) included in FR1 may include an unlicensed band. The unlicensed band can be used for a variety of purposes, for example, it can be used for vehicle communications (e.g., autonomous driving).

[0055] On the other hand, the communication standard based on 3GPP defines downlink physical channels corresponding to resource elements that carry information from the upper layer, and downlink physical signals corresponding to resource elements that are used by the physical layer but do not carry information from the upper layer. For example, the physical downlink shared channel (PDSCH), physical broadcast channel (PBCH), physical multicast channel (PMCH), physical control format indicator channel (PCFICH), physical downlink control channel (PDCCH), and physical hybrid ARQ indicator channel (PHICH) are defined as downlink physical channels, and reference signals and synchronization signals are defined as downlink physical signals. Reference signal (RS), also known as pilot, means a signal of a predefined special waveform known to both the gNB and the UE. For example, cell specific RS, UE-specific RS, positioning RS (PRS), and channel state information RS (CSI-RS) are defined as downlink reference signals. The 3GPP LTE / LTE-A standard defines uplink physical channels corresponding to resource elements that carry information from the upper layer and uplink physical signals corresponding to resource elements used by the physical layer but do not carry information from the upper layer. For example, physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), and physical random access channel (PRACH) are defined as uplink physical channels, and a demodulation reference signal (DMRS) for uplink control / data signals and a sounding reference signal (SRS) for uplink channel measurement are defined.

[0056] In this specification, PDCCH (Physical Downlink Control CHannel) / PCFICH (Physical Control Format Indicator CHannel) / PHICH (Physical Hybrid automatic retransmit request Indicator CHannel) / PDSCH (Physical Downlink Shared CHannel) respectively refer to a set of time-frequency resources or a set of resource elements carrying DCI (downlink control information) / CFI (Control Format Indicator) / downlink ACK / NACK (ACK nowlegement / Negative ACK) / downlink data. In addition, PUCCH (Physical Uplink Control CHannel) / PUSCH (Physical Uplink Shared CHannel) / PRACH (Physical Random Access CHannel) respectively refer to a set of time-frequency resources or a set of resource elements carrying UCI (Uplink Control Information) / uplink data / random access signals.

[0057] Figure 1 A diagram illustrating a wireless communication system.

[0058] Reference Figure 1 It can be seen that the wireless communication system includes at least one base station (BS). The BS is divided into gNodeB (or gNB) 20a and eNodeB (or eNB) 20b. The gNB 20a supports the fifth generation of mobile communications. The eNB 20b supports the fourth generation of mobile communications, namely LTE (long term evolution).

[0059] Each base station 20a and 20b provides communication services for a specific geographical area (commonly referred to as a cell) 20-1, 20-2, 20-3. A cell may be further divided into a plurality of areas (referred to as sectors).

[0060] UE (User Equipment) usually belongs to a cell, and the cell to which the UE belongs is called a serving cell. The base station that provides communication services to the serving cell is called a serving BS. The wireless communication system is a cellular system, so there are other cells adjacent to the serving cell. Other cells adjacent to the serving cell are called neighbor cells. The base station that provides communication services to the neighbor cell is called a neighbor BS. The serving cell and the neighbor cell are relatively determined based on the UE.

[0061] In the following, downlink refers to communication from the base station 20 to the UE 10, and uplink refers to communication from the UE 10 to the base station 20. In the downlink, the transmitter may be a part of the base station 20, and the receiver may be a part of the UE 10. In the uplink, the transmitter may be a part of the UE 10, and the receiver may be a part of the base station 20.

[0062] On the other hand, wireless communication systems can be roughly divided into FDD (frequency division duplex) mode and TDD (time division duplex) mode. According to the FDD mode, uplink transmission and downlink transmission occupy different frequency bands. According to the TDD mode, uplink transmission and downlink transmission occupy the same frequency band and are performed at different times. The channel response of the TDD mode is essentially reciprocal. In a given frequency region, the downlink channel response and the uplink channel response are almost the same. Therefore, in a wireless communication system based on TDD, the downlink channel response has the advantages that can be obtained from the uplink channel response. In the TDD mode, uplink transmission and downlink transmission are time-divided for the entire frequency band, so the downlink transmission of the base station and the uplink transmission of the UE cannot be performed at the same time. In a TDD system where uplink transmission and downlink transmission are divided into subframe units, uplink transmission and downlink transmission are performed in different subframes.

[0063] Figure 2 The structure of the radio frame used by NR is shown.

[0064] In NR, uplink and downlink transmissions consist of frames. The radio frame has a length of 10ms and is defined as 2 5ms half-frames (Half-Frame, HF). A half-frame is defined as 5 1ms subframes (Subframe, SF). A subframe is divided into more than one time slot, and the number of time slots in a subframe depends on the SCS (Subcarrier Spacing). Each time slot includes 12 or 14 OFDM (A) symbols depending on the CP (cyclic prefix). When using a normal CP, each time slot includes 14 symbols. When using an extended CP, each time slot includes 12 symbols. Among them, the symbols may include OFDM symbols (or CP-OFDM symbols), SC-FDMA symbols (or DFT-s-OFDM symbols).

[0065] <Support for various parameter sets (numerology)> In the NR system, with the development of wireless communication technology, multiple parameter sets (numerology) can also be provided to the terminal. For example, when the SCS is 15kHz, it supports wide areas in the traditional cellular band, when the SCS is 30kHz / 60kHz, it supports dense-urban, lower latency and wider carrier bandwidth, and when the SCS is 60kHz or higher, it supports bandwidths larger than 24.25GHz in order to overcome phase noise.

[0066] The parameter set may be defined according to the CP (cycle prefix) length and the subcarrier spacing (SCS). A cell may provide multiple parameter sets to a terminal. When μ is used to represent the parameter set index, the CP length corresponding to each subcarrier spacing may be as shown in the following table.

[0067] [Table 2]

[0068] For a normal CP, when μ represents the index of the parameter set, the number of OFDM symbols per time slot (N slot symb ), the number of time slots per frame (N frame,μ slot ) and the number of time slots per subframe (N subframe,μ slot ) are shown in the following table.

[0069] [Table 3]

[0070] For extended CP, when μ represents the index of the parameter set, the number of OFDM symbols per time slot (N slot symb ), the number of time slots per frame (Nf rame,μ slot ) and the number of time slots per subframe (N subframe,μ slot ) are shown in the following table.

[0071] [Table 4]

[0072] In the NR system, OFDM (A) parameter sets (numerology) (e.g., SCS, CP length, etc.) can be set differently between multiple cells merged into one terminal. Therefore, the (absolute time) interval of time resources (e.g., SF, time slot or TTI) (collectively referred to as TU (Time Unit) for convenience) composed of the same number of symbols can be set differently between the merged cells.

[0073] Figure 3a to Figure 3c is an example diagram illustrating an exemplary architecture for wireless communication services.

[0074] Reference Figure 3a , the UE is connected to the LTE / LTE-A based cell and the NR based cell in DC (dual connectivity) mode.

[0075] The NR-based cell is connected to the core network used for the original fourth-generation mobile communication, namely EPC (Evolved Packet Core).

[0076] Reference Figure 3b , different from Figure 3a , the LTE / LTE-A based cells are connected to the core network for the fifth generation mobile communications, i.e., the 5G core network.

[0077] Will be based on Figure 3a and Figure 3b The service mode of the architecture shown is called NSA (non-standalone).

[0078] Reference Figure 3c , UE is only connected to the NR-based cell. The service mode based on this architecture is called SA (standalone).

[0079] On the other hand, in the NR, it can be considered that the reception from the base station utilizes the downlink subframe, and the transmission to the base station utilizes the uplink subframe. This approach can be applied to paired spectrum and unpaired spectrum. A pair of spectrum means including two carrier spectra for downlink and uplink operations. For example, in a pair of spectrum, a carrier may include a downlink frequency band and an uplink frequency band that are paired with each other.

[0080] Figure 4 Shows the time slot structure of the NR frame.

[0081] A slot includes multiple symbols in the time domain. For example, for a normal CP, a slot includes 14 symbols, and for an extended CP, a slot includes 12 symbols. A carrier includes multiple subcarriers in the frequency domain. An RB (Resource Block) is defined as multiple (e.g., 12) consecutive subcarriers in the frequency domain. A BWP (Bandwidth Part) is defined as multiple consecutive (physical, P) RBs in the frequency domain, which can correspond to a parameter set (numerology) (e.g., SCS, CP length, etc.). A terminal can form up to N (e.g., 4) BWPs in the downlink and uplink, respectively. Downlink or uplink transmission can be performed through an activated BWP, and at a given time, only one BWP established for the terminal can be activated. In a resource grid, each element is called a resource element (RE), which can map a complex symbol.

[0082] Figure 5 Examples of subframe types in NR are shown.

[0083] Figure 5 The TTI (transmission time interval) shown may be referred to as a subframe or time slot for NR (or new RAT). Figure 5 The subframes (or time slots) can be used in the TDD system of NR (or new RAT) to minimize the data transmission delay. Figure 5 As shown, a subframe (or time slot) includes 14 symbols. The front symbol of the subframe (or time slot) can be used for a downlink (DL) control channel, and the rear symbol of the subframe (or time slot) can be used for an uplink (UL) control channel. The remaining symbols can be used for DL ​​data transmission or UL data transmission. According to this subframe (or time slot) structure, downlink transmission and uplink transmission can be performed sequentially in one subframe (or time slot). Therefore, downlink data can be received in a subframe (or time slot), and uplink confirmation response (ACK / NACK) can also be transmitted in the subframe (or time slot).

[0084] This subframe (or time slot) structure may be referred to as a self-contained subframe (or time slot).

[0085] Specifically, the first N symbols in a time slot can be used to transmit a DL control channel (hereinafter referred to as the DL control region), and the last M symbols in a time slot can be used to transmit a UL control channel (hereinafter referred to as the UL control region). N and M are integers greater than or equal to 0, respectively. The resource region between the DL control region and the UL control region (hereinafter referred to as the data region) can be used for DL ​​data transmission or for UL data transmission. For example, in the DL control region, a physical downlink control channel (PDCCH) can be transmitted, and in the DL data region, a physical downlink shared channel (PDSCH) can be transmitted. In the UL control region, a physical uplink control channel (PUCCH) can be transmitted, and in the UL data region, a physical uplink shared channel (PUSCH) can be transmitted.

[0086] If this subframe (or time slot) structure is used, it has the advantage of reducing the time required to retransmit data with reception errors to minimize the final data transmission standby time. In this self-contained subframe (or time slot) structure, a time gap is required during the migration from the transmission mode to the reception mode or from the reception mode to the transmission mode. For this reason, in the subframe structure, a part of the OFDM symbols when switching from DL to UL can be set as a guard period (GP).

[0087] Figure 6 The structure of a self-contained time slot is shown.

[0088] In the NR system, a frame is characterized by being a self-contained structure that can include all of the DL control channel, DL or UL data, UL control channel, etc. in one time slot. For example, the first N symbols in a time slot can be used to transmit a DL control channel (hereinafter referred to as the DL control region), and the last M symbols in a time slot can be used to transmit a UL control channel (hereinafter referred to as the UL control region). N and M are integers greater than or equal to 0. The resource region between the DL control region and the UL control region (hereinafter referred to as the data region) can be used for DL ​​data transmission or for UL data transmission. As an example, the following structure can be considered. The intervals are listed in chronological order.

[0089] 1.DL only configuration 2.UL only configuration 3. Mixed UL-DL Configuration -DL area + GP (Guard Period) + UL control area -DL control area + GP + UL area DL area: (i) DL data area, (ii) DL control area + DL data area UL area: (i) UL data area, (ii) UL data area + UL control area PDCCH can be transmitted in the DL control region, and PDSCH can be transmitted in the DL data region. PUCCH can be transmitted in the UL control region, and PUSCH can be transmitted in the UL data region. DCI (Downlink Control Information), such as DL data scheduling information, UL data scheduling information, etc., can be transmitted in PDCCH. UCI (Uplink Control Information), such as ACK / NACK (Positive Acknowledgement / Negative Acknowledgement) information for DL ​​data, CSI (Channel State Information) information, SR (Scheduling Request), etc. can be transmitted in PUCCH. GP can provide a time difference in the process of the base station and the terminal switching from the transmission mode to the reception mode or from the reception mode to the transmission mode. Within a subframe, a part of the symbols at the time point of switching from DL to UL can be set as GP.

[0090] <Disclosure of this specification> Time Division Duplex (TDD) is a duplexing method widely used in commercial new radio (NR), i.e., 5G mobile communication systems. In TDD, time period radio resources are divided into downlink time slots and uplink time slots for use. Usually, downlink time slots are distributed more than uplink time slots according to the allocation ratio of uplink traffic and downlink traffic. However, this limitation of uplink time slots has a negative impact on coverage and delay time. Full duplex communication has recently attracted attention as a technology to solve this problem.

[0091] Full duplex communication is a technology that performs DL transmission and UL reception simultaneously through the same (or specified) radio resources at the gNB (i.e., base station). DL reception and UL transmission can also be performed simultaneously on the terminal side. In other words, both the base station and the terminal can support full duplex communication. However, unlike the base station, which is structurally convenient for self-interference cancelation, the DL reception performance of the terminal is easily affected by the self-interference of the UL transmission signal. Therefore, it is generally considered that the gNB is operated by full duplex communication and the terminal is operated by half duplex communication. In addition, in order to reduce the influence of self-interference, DL transmission and UL reception are also performed simultaneously at the gNB, but the subband non-overlapping full duplex communication method is mainly considered so as to distinguish the green resources that are not the same resources between DL / UL and send and receive.

[0092] As described above, various full duplex communication application scenarios are being considered based on the capabilities of base stations and terminals, frequency bands, and frequency interference issues with other companies.

[0093] Figure 7a to Figure 7b A generalized example of subband full duplex communication is shown.

[0094] In a wireless communication system using OFDM, a duplex method called subband full duplex communication (full duplex) can be used. Among them, subband full duplex communication (full duplex) can be called subband full duplex communication (SBFD) or full duplex communication subband (FDSB). In this specification, even if the terms SBFD and FDSB are used interchangeably, they can actually have the same meaning.

[0095] In subband full duplex communication, a portion of the time-frequency resources on a given carrier is used for downlink, while a portion of the time-frequency resources on the same carrier is used for uplink. Specifically, downlink resources and uplink resources are distinguished from each other in the frequency domain and used for transmission and reception.

[0096] Figures 7a to 7b An example of SBFD is shown, but in the frequency domain Figure 7a An example is shown in which an uplink sub-band is located between downlink sub-bands, Figure 7b An example is shown in which the downlink sub-band is located between the uplink sub-bands. Although not shown in the drawings, a guard band or a guard period may be located between the downlink sub-band and the uplink sub-band to reduce interference.

[0097] In this specification, as a method for supporting subband non-overlapping full duplex communication in gNB, a subband-based UL-DL slot configuration method is proposed. However, the same content can be equally applicable to various full duplex application scenarios. For example, it can include full duplex operation in unpaired spectrum and full duplex operation in DL frequency band or UL frequency band of paired spectrum. In addition, as described above, sub-band non-overlapping full duplex communication or pure full duplex communication (i.e., DL transmission and UL reception are performed simultaneously on the same frequency resource) is supported only on the gNB side, and it can also be applicable to the scenario of performing half duplex communication operation on the terminal (UE). Furthermore, the contents of the present invention can also be applied not only in the gNB but also in the terminal (UE), when supporting sub-band non-overlapping full-duplex communication (sub-band non-overlapping full duplex) or pure full-duplex communication (full duplex).

[0098] When the base station supports full-duplex communication based on sub-band non-overlapping, it is necessary to use the frequency resources of a specific sub-band as DL symbols for DL ​​transmission in any unpaired spectrum, and the frequency resources of other sub-bands as UL symbols for UL reception. However, the UL-DL slot configuration defined in the current NR is defined as being formed by a cell unit through cell-specific radio resource control (RPC) signaling. That is, a pattern of DL symbols, UL symbols, and flexible symbols of a certain periodicity is configured through the RRC message 'tdd-UL-DL-ConfigurationCommon' for the corresponding UL-DL slot configuration. In addition, through the 'tdd-UL-DL-ConfigurationDedicated' as the terminal characteristic RRC signaling (UE-specific RRCsignaling), only the variable (flexible) symbols configured by the above-mentioned 'tdd-UL-DL-ConfigurationCommon' can be reallocated as UL symbols, DL symbols or variable (flexible) symbols according to each terminal. In addition, NR also defines a method for indicating the dynamic time slot format (dynamic slot format) through the terminal group common PDCCH (UE-group commonPDCCH). For this reason, NR also supports a dynamic (dynamic) form of time slot format (slot format) indication method through DCI format 2_0.

[0099] Figure 8 An example of time slot configuration for subband full-duplex communication (full duplex) according to an embodiment of the present specification is shown.

[0100] According to the above-mentioned conventional slot configuration method, any one symbol can be set or indicated as one of DL, UL or variable.

[0101] Reference Figure 8 , Figure 8The left side is an example of setting any time slot format to DDDSU through an existing time slot configuration. Here, D means that all OFDM symbols constituting the corresponding time slot by the downlink time slot are set to DL. U means that all OFDM symbols constituting the corresponding time slot by the uplink time slot are set to UL. S represents a time slot including a flexible symbol for DL / UL transition by a special time slot. Typically, in the case of a normal CP, a special time slot can be composed of 12 DL symbols and 2 flexible symbols out of a total of 14 symbols. Alternatively, it can be composed of 10 DL symbols, 2 flexible symbols and 2 UL symbols. That is, in any TDD carrier, a symbol is only set or indicated as one of DL, UL or flexible.

[0102] However, if Figure 8 As shown on the right side of , in order to support full duplex operation, it is possible to support the transmission direction (Tx direction) setting (i.e., DL, UL, or flexible) set by the slot configuration information and any frequency resources, i.e., subbands, for supporting transmission directions (Tx directions) in different directions. In other words, Figure 8 As shown on the right, in any DL time slot or DL ​​symbol, part of the frequency resources can be defined as a flexible symbol for UL transmission or DL / UL transition of the terminal. Alternatively, in any UL time slot or UL symbol, part of the frequency resources can be defined as a flexible symbol for DL ​​transmission. Therefore, a specific method for setting and operating a UL full-duplex communication subband (full duplex subband, FDSB) in any DL time slot / symbol or setting and operating a DL FDSB in a UL time slot / symbol is proposed in this specification.

[0103] I. First disclosure: semi-static configuration solution Any FDSB can be set to semi-static through cell-specific or UE-specific radio resource control (RRC) signaling. At this time, the corresponding FDSB setting information may include subband type information (DL SBFD or UL SBFD), frequency resource allocation information of the corresponding FDSB, subcarrier spacing (SCS) information, cyclic prefix (CP) information, and time period resource allocation information of the corresponding FDSB.

[0104] As a method of frequency resource allocation information of FDSB, it is possible to define a frequency location information of FDSB and bandwidth (BW) information of FDSB. Frequency location information may refer to the location information constituting FDSB within the system bandwidth of any TDD carrier, and as an example thereof, the corresponding location information may be defined as one of three types of upper edge, lower edge and center of the system bandwidth of the corresponding TDD carrier. In addition, the BW information of FDSB is constituted from the upper edge or lower edge as the number of resource blocks (RBs) allocated by FDSB, at which time the corresponding RB may be defined as the number of corresponding RBs set based on a common resource block (CRB), or the number of corresponding RBs set based on a physical resource block (PRB) of an initial DL bandwidth part (BWP). Similarly, for the case where the FDSB is set at the center frequency (i.e., the exact center of the system bandwidth), the BW information of the FDSB is set to the RB number (number of RBs) value, and when the corresponding value is N, the corresponding FDSB can be defined as a symmetrical form with an upper bandwidth of N / 2 and a lower bandwidth of N / 2 based on the center frequency. Alternatively, the corresponding N value is defined as the value of each upper bandwidth and lower bandwidth, and based on this, the bandwidth of the FDSB is defined as 2N at the center frequency.

[0105] As another method of setting the frequency resources of FDSB, the starting RB and the number of consecutive RBs constituting FDSB from the starting RB can be defined. In this case, the corresponding starting RB is used as CRB, N FDSB start = O Carrier + RB start , O Carrier By the carrier offset for SCS ( offsetToCarrier forthe subcarrierSpacing ) is given. Among them, the corresponding starting RB, and RBstart The number of contiguous RBs, N FDSB size = L RB The value may be defined as being formed by setting a resource indication vector / value (RIV), or the corresponding value may be formed by separate information areas. Alternatively, the RB index value belonging to the start point and the end point of the sub-band may be set and sent.

[0106] The time period resource setting information of FDSB can be composed of period information, offset information, duration information, time slot format information, etc. according to the FDSB pattern. Specifically, FDSB can set one or two time period patterns, and can set period information, offset information (FDSB start symbol or FDSB last symbol in the corresponding period), duration information (length of FDSB), and time slot format information in the corresponding duration (i.e., UL symbol, DL symbol, flexible symbol, etc. setting information) according to each pattern. The corresponding setting information is composed of each separate information area and can be defined as setting each parameter in the base station / network. As another method, for the case of specific information, it can be defined to be implicitly determined by other setting parameters. For example, it can be defined to determine some values ​​of FDSB according to the slot configuration information set by the 'tdd-UL-DL-ConfigurationCommon' and additionally by the 'tdd-UL-DL-ConfigurationDedicated'. Specifically, the number of patterns and the period value of each pattern of the corresponding FDSB can be determined according to the number of slot configuration patterns set by the above-mentioned "tdd-UL-DL-ConfigurationCommon" for slot configuration and the period value of each pattern. In other words, if a slot configuration pattern is set through 'tdd-UL-DL-ConfigurationCommon', a pattern can also be set for FDSB. If two slot configuration patterns are set through 'tdd-UL-DL-ConfigurationCommon', two pattern configurations are also formed for FDSB. At this time, in the case of the period information of FDSB, it can also be defined to be derived based on the slot configuration information set through "tdd-UL-DL-ConfigurationCommon".As an example thereof, the period information of the FDSB may be defined as having the same value as the period information of the slot configuration of the corresponding "tdd-UL-DL-ConfigurationCommon". For example, if a slot configuration pattern is set through "tdd-UL-DL-ConfigurationCommon", and the period of the corresponding slot configuration pattern is P, it may be defined that any FDSB also sets a pattern based on the period, P. On the other hand, when two slot configuration patterns are set with a period of P+P2 through "tdd-UL-DL-ConfigurationCommon" (each period, pattern 1 of P and pattern 2 of period P2), it may be defined that the corresponding FDSB also sets pattern 1 (based on period P) and pattern 2 (based on period P2) with a period of P+P2, respectively.

[0107] Fig. 9 Another example of time slot configuration for subband full-duplex communication according to an embodiment of the present specification is shown.

[0108] In the case of the slot format of the FDSB, it can be restricted to have a specific format according to the type of the FDSB. For example, when the UL FDSB is set within a DL symbol (or additionally a flexible symbol), the corresponding UL FDSB can be defined as having a format of continuous flexible symbols + continuous UL symbols. On the other hand, when the DL FDSB is set within a UL symbol, the corresponding DL FDSB can be defined as consisting of only DL symbols.

[0109] In addition, depending on the type of FDSB, the offset value can also be fixed to a specific position. Figure 8When setting the UL FDSB as shown, the position of the last symbol constituting the corresponding UL FDSB may be fixed to the last DL symbol, the last flexible symbol, or the symbol before the first UL symbol, etc., which may be set by "tdd-UL-DL-ConfigurationCommon" in each UL FDSB pattern. Accordingly, the UL FDSB duration in the corresponding pattern may be set to the number of consecutive symbols constituting the corresponding FDSB in the opposite direction of the symbol index from the symbol belonging to the corresponding offset (i.e., the last symbol constituting the UL FDSB). Alternatively, without setting a separate duration, it may be defined as setting the number of consecutive UL symbols constituting the corresponding UL FDSB in the opposite direction of the corresponding last symbol (when as Fig. 9 When forming the UL FDSB as shown, 35) and then forming the number of flexible symbols of the corresponding UL FDSB (when Fig. 9 When the UL FDSB is formed as shown in FIG. 7), on the other hand, it can be defined as setting the offset value and deriving the duration (duration) or the time slot format information of the corresponding FDSB. For example, when the above Figure 8 When setting the UL FDSB as shown in the figure, the offset information of the first symbol from the start point of the corresponding pattern period to the start point of the UL FDSB can be defined (for example, in Figure 8 In the case of 14-setting the size of the offset, or 15-setting the symbol number of the corresponding UL FDSB starting symbol), and setting the number of continuous variable (flexible) symbols from the corresponding starting offset symbol (in Fig. 9 In the case of 7), based on this, the last DL symbol or the last flexible symbol or the previous symbol of the first UL symbol set by 'tdd-UL-DLConfigurationCommon' can be defined as the UL symbol for the corresponding UL FDSB. However, the above example is a case where the UL FDSB is constructed in the order of flexible + UL symbols. If the UL FDSB is set in a different configuration, for example, the UL FDSB is set by UL symbols, the information area for setting the flexible symbol can be omitted in the above example.

[0110] As the same method, when DL FDSB is set within the set UL symbol by 'tdd-UL-DL-ConfigurationCommon', the position of the last symbol constituting the corresponding DL FDSB is fixed by the last DL symbol or the previous symbol of the first UL symbol set by 'tdd-UL-DL-ConfigurationCommon' within each DL FDSB pattern. Accordingly, as the DL FDSB duration and slot format information within the corresponding pattern, it can be defined to set the number of consecutive symbols constituting the corresponding DL FDSB in the opposite direction of the symbol index from the symbol belonging to the corresponding offset (i.e., the last symbol constituting the DL FDSB), i.e., the number of symbols used for DL ​​within the corresponding DL FDSB. Alternatively, it can be defined to set the offset value on the contrary, and derive the duration or slot format information of the corresponding FDSB. For example, it can be defined to set only the offset information from the first UL symbol of the corresponding pattern period to the first symbol starting with the DL FDSB, and in this case, the corresponding DL FDSB can be defined to constitute from the starting symbol of the DL FDSB to the last UL symbol.

[0111] As described above, when any FDSB is set to semi-static through cell-specific or UE-specific RRC signaling, it is possible to restrict only one FDSB to be set according to the corresponding FDSB type. That is, it is possible to restrict only one UL FDSB and one DL FDSB to be set, and it is possible to define the release of any set FDSB through the corresponding RRC signaling.

[0112] Alternatively, if any FDSB is set semi-statically through cell-specific or UE-specific RRC signaling, any base station / cell can configure one or more FDSBs on any TDD carrier through the corresponding FDSB configuration / reconfiguration RRC message, and release information or modification of the set FDSB can also be sent through the corresponding RRC message. When one or more FDSBs are set on any TDD carrier, ID information per FDSB for identifying each FDSB can be set together.

[0113] II. Second disclosure: Dynamic indication scheme The FDSB setting information can be defined as being dynamically indicated by the base station through the PDCCH. To this end, a new DCI format for the corresponding FDSB setting can be defined. The DCI format for FDSB may include an information area recorded in the above-mentioned first disclosed scheme for indicating the type, frequency and time resources of the FDSB. At this time, the corresponding frequency resource allocation information can be based on the CRB constituting the system bandwidth of the corresponding TDD carrier, and regardless of the DL BWP setting or UL BWP setting information of the terminal receiving the corresponding DCI, it can be indicated according to the frequency resource setting scheme of the FDSB prompted by the above-mentioned first disclosed scheme. Alternatively, in the case of UL FDSB, frequency domain resource assignment (FDRA) is performed based on the PRB of the DL BWP activated for the terminal, and in the case of DL FDSB, FDRA is performed based on the PRB of the UL BWP activated for the corresponding terminal. The FDSB time resource indication method indicated by the DCI format for FDSB indication can also follow the method prompted in the above-mentioned first disclosed scheme. Alternatively, a monitoring period based on the DCI format indicated for the corresponding FDSB may be defined, and the time period resource allocation of the FDSB may be formed at one time within the corresponding period. For example, a slot format including FDSB symbols is defined, a slot format table is formed based on this, and a slot format combination based on the slot format table is formed for the time slots within the corresponding monitoring period, and a slot format combination ID may be defined by indicating the DCI format through the FDSB. Alternatively, a 'timedomainresourceallocation list' of a single time slot constituting a time domain resource allocation (TDRA) for time resource allocation for FDSB or a 'timedomainresourceallocation list' based on multiple time slots (multi-slot) may be defined, indicating a TDRA index in the corresponding list.

[0114] Alternatively, a portion of the information area used for FDSB settings, such as the first disclosed solution described above, may be set by cell-specific or UE-specific RRC signaling, and only the other portion of the information may be dynamically indicated based on DCI. For example, for any FDSB frequency domain resource assignment information, it may be set by cell-specific or UE-specific RRC signaling, and only the TDRA information of the corresponding FDSB may be defined by dynamic DCI indication.

[0115] The above-mentioned DCI for FDSB setting can be sent by UE-group common or cell-specific signaling, or can be sent by UE-specific signaling. The terminal receives the reception setting information of the DCI format used for the corresponding FDSB setting by the base station through UE-specific or cell-specific RRC signaling. The reception setting information of the DCI format for the FDSB setting instruction may include corresponding DCI monitoring period information, radio network temporary identifier (RNTI) information, payload size information, etc.

[0116] In addition, the DCI format for the corresponding FDSB indication can send one or more FDSB setting indication information within the monitoring period of the corresponding DCI format. If more than one FDSB setting is supported, the number of FDSBs or the maximum number of FDSBs that can be indicated by the DCI format for the corresponding FDSB indication is set in the base station, and sent to the UE through cell-specific or UE-specific RRC signaling, thereby determining the payload of the DCI format for the corresponding FDSB indication. Alternatively, the payload size of the DCI format for the corresponding FDSB indication can be directly set so that it can be sent from the base station to the terminal through cell-specific or UE-specific RRC signaling.

[0117] III. Third disclosure: FDSB activation / deactivation scheme One or more FDSB list setting information is sent through RRC signaling. The FDSB list setting information includes one or more FDSB setting information, and each FDSB setting information can be associated with FDSB ID information. In addition, the setting information of each FDSB can be constructed based on the content recorded in the above-mentioned first disclosed semi-static configuration scheme.

[0118] In this way, when any cell / base station sets a FDSB list consisting of one or more FDSBs through RRC signaling, the corresponding base station / cell can activate or deactivate a specific FDSB through terminal-specific (UE-specific) or terminal group common (UE-group common) DCI or MAC CE signaling. When any FDSB is activated, it can be defined that the corresponding FDSB is explicitly deactivated (deactivation) by the base station, or a deactivation timer (deactivation timer) for the FDSB is defined, so that the corresponding timer (timer) expires (deactivation). Wherein, when the deactivation timer (deactivation timer) of the FDSB is defined, the corresponding timer (timer) value has a fixed value or can be set by the base station / network through UE-specific (UE-specific) or cell-specific (cell-specific) RRC signaling. When a corresponding timer value is defined, the timer value may be set to have a common value for all FDSBs in the corresponding cell, or may be set to have an individual value for each FDSB.

[0119] At the same time, the case where the FDSB setting is formed in the form of all combinations of the above-mentioned first disclosed scheme 1, the second disclosed scheme and the third disclosed scheme may also be included in the scope of the present invention. In addition, although the present invention is described based on the 5G NR system, it is not related to the specific wireless communication technology, and all situations where the concept of the present invention is applicable may be included in the scope of the present invention.

[0120] <Order of Examples of This Specification> Fig.10 The following describes an operation method of a terminal according to an embodiment of the present specification.

[0121] Reference Fig.10, the terminal receives subband setting information for full duplex communication (full duplex) from the base station (S1001). The subband setting information includes frequency resource setting information and time resource setting information, and the frequency resource of the subband set based on the received frequency resource setting information is set based on a common resource block (CRB), and the time resource of the subband set based on the received time resource setting information is set based on at least one subband mode with a period. Here, the subband setting information can be received through upper layer signaling or through downlink control information (DCI). The upper layer signaling can be UE-specific RRC signaling or cell-specific RRC signaling.

[0122] Thereafter, downlink reception or uplink transmission is performed through the subband based on the received subband setting information (S1002).

[0123] The subband setting information may further include subcarrier spacing (SCS) information and cyclic prefix information, and may further include a subband list including the subband. Here, at least one subband included in the subband list may be activated.

[0124] The frequency resources of the sub-band are set i) based on the frequency position information of the upper end, the center or the lower end and the number of resource blocks (RB), or ii) based on the starting RB information and the number of RBs, or iii) based on the starting RB information and the ending RB information. Alternatively, the frequency resources of the sub-band can be set based on a resource indication value (RIV) from which the starting resource block (RB) and the number of resource blocks (RB) can be derived.

[0125] The number of the at least one sub-band pattern and the period of each sub-band pattern may be determined based on information corresponding to an information element included in a time division duplex (TDD) uplink-downlink configuration common (tdd-UL-DL-ConfigurationCommon) information element.

[0126] Meanwhile, the time resource of the sub-band may be set based on a duration based on the number of symbols from a specific symbol of each sub-band pattern.

[0127] When the sub-band setting information is received through UE-specific or cell-specific upper layer signaling, the sub-band may be activated through downlink control information (DCI).

[0128] At the same time, the setting of the sub-band may be released through terminal-specific or cell-specific upper layer signaling.

[0129] Fig.11 The following describes an operation method of a base station according to an embodiment of the present specification.

[0130] Reference Fig.11 , the base station sends subband setting information for full duplex communication (full duplex) to the terminal (S1101). The subband setting information includes frequency resource setting information and time resource setting information, and the frequency resource of the subband set based on the received frequency resource setting information is set based on a common resource block (CRB), and the time resource of the subband set based on the sent time resource setting information is set based on at least one subband mode with a period. Here, the subband setting information can be sent through upper layer signaling or through downlink control information (DCI). The upper layer signaling can be UE-specific RRC signaling or cell-specific RRC signaling.

[0131] Thereafter, downlink transmission or uplink reception is performed through the subband based on the transmitted subband setting information (S1102).

[0132] The sub-band setting information may further include sub-carrier spacing (SCS) information and cyclic prefix (cyclic prefix) information, and may further include a sub-band list including the sub-band. Here, at least one sub-band included in the sub-band list may be activated.

[0133] The frequency resources of the sub-band are set i) based on the frequency position information of the upper end, the center or the lower end and the number of resource blocks (RB), or ii) based on the starting RB information and the number of RBs, or iii) based on the starting RB information and the ending RB information. Alternatively, the frequency resources of the sub-band can be set based on a resource indication value (RIV) from which the starting resource block (RB) and the number of resource blocks (RB) can be derived.

[0134] The number of the at least one sub-band pattern and the period of each sub-band pattern may be determined based on information corresponding to an information element included in a time division duplex (TDD) uplink-downlink configuration common (tdd-UL-DL-ConfigurationCommon) information element.

[0135] Meanwhile, the time resource of the sub-band may be set based on a duration based on the number of symbols from a specific symbol of each sub-band pattern.

[0136] When the sub-band setting information is sent through UE-specific or cell-specific upper layer signaling, the sub-band may be activated through downlink control information (DCI).

[0137] At the same time, the setting of the sub-band may be released through terminal-specific or cell-specific upper layer signaling.

[0138] <Overview of Apparatus to Which This Specification Can Be Disclosed> The disclosure of the present specification described above can be implemented by various means. For example, the disclosure of the present specification can be implemented by hardware, firmware, software or a combination thereof. The disclosure will be described in detail with reference to the accompanying drawings.

[0139] Fig.12 A device according to an embodiment of the present specification is shown.

[0140] Reference Fig.12 , a wireless communication system may include a first device 100a and a second device 100b.

[0141] The first device 100a can be a base station, a network node, a transmission terminal, a receiving terminal, a wireless device, a wireless communication device, a vehicle, a vehicle equipped with an autonomous driving function, a smart car (Connected Car), an unmanned aerial vehicle (UAV), an AI (Artificial Intelligence) module, a robot, an AR (Augmented Reality) device, a VR (Virtual Reality) device, an MR (Mixed Reality) device, a holographic device, a public safety device, an MTC device, an IoT device, a medical device, a fintech device (or a financial device), a security device, a climate / environmental device, a 5G service-related device or other devices related to the fourth industrial revolution.

[0142] The second device 100b can be a base station, a network node, a transmission terminal, a receiving terminal, a wireless device, a wireless communication device, a vehicle, a vehicle equipped with an autonomous driving function, a smart car (Connected Car), an unmanned aerial vehicle (UAV), an AI (Artificial Intelligence) module, a robot, an AR (Augmented Reality) device, a VR (Virtual Reality) device, an MR (Mixed Reality) device, a holographic device, a public safety device, an MTC device, an IoT device, a medical device, a fintech device (or a financial device), a security device, a climate / environmental device, a 5G service-related device or other devices related to the fourth industrial revolution.

[0143] The first device 100a may include: at least one processor such as a processor 1020a, at least one memory such as a memory 1010a, and at least one transceiver such as a transceiver 1031a. The processor 1020a may perform the aforementioned functions, steps and / or methods. The processor 1020a may execute one or more protocols. For example, the processor 1020a may execute one or more layers of a wireless interface protocol. The memory 1010a may be connected to the processor 1020a and store information and / or instructions in various forms. The transceiver 1031a may be connected to the processor 1020a and control the transmission and reception of wireless signals.

[0144] The second device 100b may include at least one processor such as a processor 1020b, at least one memory device such as a memory 1010b, and at least one transceiver such as a transceiver 1031b. The processor 1020b may perform the aforementioned functions, steps, and / or methods. The processor 1020b may implement more than one protocol. For example, the processor 1020b may implement more than one layer of a wireless interface protocol. The memory 1010b may be connected to the processor 1020b and store information and / or instructions in various forms. The transceiver 1031b may be connected to the processor 1020b and control the transmission and reception of wireless signals.

[0145] The memory 1010a and / or the memory 1010b may be connected to the inside or outside of the processor 1020a and / or the processor 1020b, respectively, or may be connected to other processors via various technologies such as wired or wireless connections.

[0146] The first device 100a and / or the second device 100b may have more than one antenna. For example, the antenna 1036a and / or the antenna 1036b may be configured to receive and transmit wireless signals.

[0147] Fig.13 A block diagram showing the structure of a terminal according to an embodiment of the present specification.

[0148] in particular Fig.13 The foregoing is shown in more detail Fig.12 Figure 1.

[0149] The device includes a memory 1010, a processor 1020, a transceiver 1031, a power management module 1091, a battery 1092, a display device 1041, an input unit 1053, a speaker 1042 and a microphone 1052, a SIM (subscriber identification module) card, and one or more antennas.

[0150] The processor 1020 may be configured to implement the functions, steps and / or methods described and proposed in this specification. The layers of the radio interface protocol may be implemented in the processor 1020. The processor 1020 may include an ASIC (application-specific integrated circuit), other chipsets, logic circuits and / or data processing devices. The processor 1020 may be an AP (application processor). The processor 1020 may include at least one of a DSP (digital signal processor), a CPU (central processing unit), a GPU (graphics processing unit), and a modem (Modem: modulator and demodulator). The processor 1020 may be, for example, a SNAPDRAGONTM series processor manufactured by Qualcomm®, an EXYNOSTM series processor manufactured by Samsung®, an A series processor manufactured by Apple®, a HELIOTM series processor manufactured by MediaTek®, an ATOMTM series processor manufactured by INTEL®, a KIRINTM series processor manufactured by HiSilicon®, or a corresponding new generation processor.

[0151] The power management module 1091 manages the power of the processor 1020 and / or the transceiver 1031. The battery 1092 supplies power to the power management module 1091. The display device 1041 outputs the results processed by the processor 1020. The input unit 1053 receives input to be used by the processor 1020. The input unit 1053 can be displayed on the display device 1041. The SIM card is an integrated circuit used to identify and authenticate the IMSI (international mobile subscriber identity) of the network user in mobile devices such as mobile phones and computers, and to securely store keys related thereto. Phonebook information can also be stored in many SIM cards.

[0152] The memory 1010 is operably combined with the processor 1020 to store various information for operating the processor 610. The memory 1010 may include ROM (read-only memory), RAM (random access memory), flash memory, memory card, storage medium and / or other storage devices. When the embodiment is implemented in software, the technology described in this specification can be implemented in modules (e.g., steps, functions, etc.) that perform the functions described in this specification. The module can be stored in the memory 1010 and run by the processor 1020. The memory 1010 can be implemented inside the processor 1020. Alternatively, the memory 1010 can be implemented outside the processor 1020 and can be communicatively connected to the processor 1020 by various means known in the art.

[0153] The transceiver 1031 is operably combined with the processor 1020 to send and / or receive wireless signals. The transceiver 1031 includes a transmitter and a receiver. The transceiver 1031 may include a baseband circuit for processing radio frequency signals. The transceiver controls more than one wire to send and / or receive wireless signals. In order to start communication, the processor 1020 sends instruction information to the transceiver 1031 to transmit, for example, wireless signals constituting voice communication data. The antenna performs the function of sending and receiving wireless signals. When receiving wireless signals, the transceiver 1031 can send signals and convert the signals into baseband for processing by the processor 1020. The processed signals can be converted into auditory or visual information output through the speaker 1042.

[0154] The speaker 1042 outputs the sound related results processed by the processor 1020. The microphone 1052 receives the sound related input to be used by the processor 1020.

[0155] The user inputs command information such as a phone number by, for example, pressing a button (or touching) of the input unit 1053 or by voice activation based on the microphone 1052. The processor 1020 processes the received command information to execute appropriate functions such as dialing the phone number. Operational data may be extracted from the SIM card or the memory 1010. In addition, the processor 1020 may display the command information or the operation information on the display device 1041 so that the user can recognize it and provide convenience.

[0156] Fig.14 A block diagram showing the structure of a processor that implements the disclosure of this specification.

[0157] Reference Fig.14It is known that the processor 1020 implementing the disclosure of this specification may include multiple circuits (circuitry) to implement the functions, steps and / or methods described and proposed in this specification. For example, the processor 1020 may include a first circuit 1020-1, a second circuit 1020-2 and a third circuit 1020-3. In addition, although not shown, the processor 1020 may include more circuits. Each circuit may include multiple transistors.

[0158] The processor 1020 may also be referred to as an ASIC (application-specific integrated circuit) or an AP (application processor), and may include at least one of a DSP (digital signal processor), a CPU (central processing unit), and a GPU (graphics processing unit).

[0159] Fig.15 To show in detail Fig.12 The first device of the transceiver or Fig.13 Block diagram of the receiving and transmitting part of the device shown.

[0160] Reference Fig.15 The transceiver 1031 includes a transmitter 1031-1 and a receiver 1031-2. The transmitter 1031-1 includes a DFT (Discrete Fourier Transform) unit 1031-11, a subcarrier mapper 1031-12, an IFFT unit 1031-13, a CP insertion unit 1031-14, and a wireless transmission unit 1031-15. The transmitter 1031-1 may also include a modulator. In addition, for example, a scramble unit (not shown), a modulation mapper (not shown), a layer mapper (not shown), and a layer permutator (not shown) may also be included, which may be configured before the DFT unit 1031-11. That is, in order to prevent the increase of PAPR (peak-to-average power ratio), the transmitter 1031-1 first passes the information through DFT 1031-11 before mapping the signal to the subcarrier. The signal spread (or synonymously precoded) by the DFT unit 1031-11 is subjected to subcarrier mapping by the subcarrier mapper 1031-12, and then passes through the IFFT (Inverse Fast Fourier Transform) unit 1031-13 to form a signal on the time axis.

[0161] The DFT unit 1031-11 performs DFT on the input symbols to output complex symbols. For example, if Ntx symbols are input (but Ntx is a natural number), the DFT size is Ntx. The DFT unit 1031-11 can be called a transform precoder. The subcarrier mapper 1031-12 maps the complex symbols to each subcarrier in the frequency domain. The complex symbols can be mapped to resource elements corresponding to resource blocks allocated for data transmission. The subcarrier mapper 1031-12 can be called a resource element mapper. The IFFT unit 1031-13 can perform IFFT on the input symbols to output a baseband signal for data as a time domain signal. The CP insertion unit 1031-14 copies the latter part of the baseband signal for data and inserts it into the front part of the baseband signal for data. By inserting CP, ISI (Inter-Symbol Interference) and ICI (Inter-Carrier Interference) can be prevented, and orthogonality can be maintained in multiplexed channels.

[0162] On the other hand, the receiver 1031-2 includes a wireless receiving unit 1031-21, a CP removing unit 1031-22, an FFT unit 1031-23, and an equalizing unit 1031-24. The wireless receiving unit 1031-21, the CP removing unit 1031-22, and the FFT unit 1031-23 of the receiver 1031-2 perform the opposite functions of the wireless transmitting unit 1031-15, the CP inserting unit 1031-14, and the IFF unit 1031-13 in the transmitting end 1031-1. The receiver 1031-2 may also include a demodulator.

[0163] The preferred embodiments are described above by way of example, but the disclosure of this specification is not limited to these specific embodiments, and thus the present invention may be modified, altered or improved into various forms within the scope of the concept of this specification and the claims.

[0164] In the above exemplary system, the method is described as a series of steps or boxes based on the flowchart, but is not limited to the order of the steps described, and some steps can be performed in an order different from the described order or simultaneously. In addition, those skilled in the art can understand that the steps shown in the flowchart are not exclusive, and other steps can be included or one or more steps in the flowchart can be deleted without affecting the scope of the rights.

[0165] The claims recorded in this specification can be combined in many ways. For example, the technical features of the method claims recorded in this specification can be combined and implemented by a device, and the technical features of the device claims in this specification can be combined and implemented by a method. In addition, the technical features of the method claims in this specification and the technical features of the device claims can be combined and implemented by a device, and the technical features of the method claims in this specification and the technical features of the device claims can be combined and implemented by a method.

Claims

1. A method for a terminal to perform downlink reception and / or uplink transmission in a wireless communication system, wherein: The method comprises: The step of receiving sub-band setting information for full-duplex communication; and performing a step of downlink reception or uplink transmission by setting the sub-band based on the received sub-band information, The sub-band setting information includes frequency resource setting information and time resource setting information. The frequency resource of the sub-band set based on the frequency resource setting information is set based on a common resource block, The time resource of the sub-frequency band set based on the time resource setting information is set based on at least one sub-frequency band pattern having a period.

2. The method according to claim 1, wherein: The sub-band setting information also includes sub-carrier spacing information and cyclic prefix information.

3. The method according to claim 1, wherein: The frequency resources of the sub-band are i) set based on the frequency position information and resource block quantity information of the upper end, center or lower end, or ii) set based on the starting resource block information and resource block quantity information, or iii) set based on the starting resource block information and the ending resource block information.

4. The method according to claim 1, wherein: The frequency resources of the sub-band are set based on a resource indication value capable of deriving a starting resource block and the number of resource blocks.

5. The method according to claim 1, wherein: The number of the at least one sub-band pattern and the period of each sub-band pattern are determined based on information included in the uplink-downlink setting common information element corresponding to the time division duplex communication.

6. The method according to claim 1, wherein: The time resource of the sub-band is set based on the duration based on the number of symbols from specific symbols of each sub-band pattern.

7. The method according to claim 1, wherein: The sub-band setting information further includes a sub-band list including the sub-bands, and at least one sub-band included in the sub-band list is activated.

8. The method according to claim 1, wherein: The sub-band configuration information is received via terminal-specific or cell-specific upper layer signaling.

9. The method according to claim 8, wherein: The sub-frequency band is activated by downlink control information.

10. The method according to claim 8, further comprising: The step of releasing the setting of the sub-band through the terminal-specific or cell-specific upper layer signaling.

11. The method according to claim 1, wherein: The sub-band setting information is received through downlink control information.

12. A method for a base station to perform downlink transmission and / or uplink reception in a wireless communication system, wherein: The method comprises: a step of transmitting sub-band setting information for full-duplex communication; and a step of performing downlink transmission or uplink reception by using a sub-band based on the sub-band setting information of the transmission, The sub-band setting information includes frequency resource setting information and time resource setting information. The frequency resource of the sub-band set based on the frequency resource setting information is set based on a common resource block, The time resource of the sub-frequency band set based on the time resource setting information is set based on at least one sub-frequency band pattern having a period.

13. The method according to claim 12, wherein: The sub-band setting information also includes sub-carrier spacing information and cyclic prefix information.

14. The method according to claim 12, wherein: The frequency resources of the sub-band are i) set based on the frequency position information and resource block quantity information of the upper end, center or lower end, or ii) set based on the starting resource block information and resource block quantity information, or iii) set based on the starting resource block information and the ending resource block information.

15. The method according to claim 12, wherein: The frequency resources of the sub-band are set based on a resource indication value capable of deriving a starting resource block and the number of resource blocks.

16. The method according to claim 12, wherein: The number of the at least one sub-band pattern and the period of each sub-band pattern are determined based on information included in the uplink-downlink setting common information element corresponding to the time division duplex communication.

17. The method according to claim 12, wherein: The time resource of the sub-band is set based on the duration based on the number of symbols from specific symbols of each sub-band pattern.

18. The method according to claim 12, wherein: The sub-band setting information further includes a sub-band list including the sub-bands, and at least one sub-band included in the sub-band list is activated.

19. The method according to claim 12, wherein: The sub-band configuration information is received via terminal-specific or cell-specific upper layer signaling.

20. A communication device in a wireless communication system, wherein: The communication device comprises: at least one processor; and At least one memory is used to store instructions and is operably connected to the at least one processor. The instructions are executed by the at least one processor, and the operations performed include: receiving sub-band setting information for full-duplex communication; and performing a step of downlink reception or uplink transmission by setting the sub-band based on the received sub-band information, The sub-band setting information includes frequency resource setting information and time resource setting information. The frequency resource of the sub-band set based on the frequency resource setting information is set based on a common resource block, The time resource of the sub-frequency band set based on the time resource setting information is set based on at least one sub-frequency band pattern having a period.

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