terminal

Abstract

The terminal (200) receives downlink control information, and sets a downlink in accordance with the downlink control information. The terminal (200) conceives that, in a case where a second subcarrier spacing wider than a first subcarrier spacing is applied, a time slot to which an indication based on the downlink control information is applied is shifted backward from a time slot in which the downlink control information is included.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a terminal that performs wireless communication, and particularly to a terminal corresponding to a wider subcarrier spacing such as 960 kHz. BACKGROUND

[0002] In the 3rd Generation Partnership Project (3GPP), the specification of the fifth generation mobile communication system (also referred to as 5G, New Radio (NR), or Next Generation (NG)) is being standardized, and the specification of the next generation, which is referred to as Beyond 5G, 5G Evolution, or 6G, is also being pursued.

[0003] In Release 15 and Release 16 (NR) of 3GPP, the operation of the band including a plurality of frequency ranges, specifically, FR1 (410 MHz to 7.125 GHz) and FR2 (24.25 GHz to 52.6 GHz) is being standardized.

[0004] Further, in Release 17 of 3GPP, regarding support of NR beyond 52.6 GHz up to 71 GHz, research is also being promoted (Non-Patent Literature 1). Furthermore, it is targeted that Beyond 5G, 5G Evolution, or 6G (Release 18 and later) also supports a frequency band beyond 71 GHz.

[0005] In the frequency band of 52.6 to 71 GHz, in consideration of efficient coexistence based on a channel bandwidth (about 2 GHz) equivalent to IEEE (Institute of Electrical and Electronics Engineers) 802.11ad / ay, and reduction of the overhead of PTRS (Phase Tracking Reference Signal) that contributes to reduction of phase noise, support of a wider subcarrier spacing (SCS), for example, 960 kHz, is being studied (Non-Patent Literature 2).

[0006] Prior Art Documents

[0007] Non-Patent Literature

[0008] Non-Patent Literature 1: “New WID on Extending current NR operation to 71 GHz”, RP-193229, 3GPP TSG RAN Meeting #86, 3GPP, December 2019

[0009] Non-Patent Literature 2: “RAN1 Chairman’s Notes”, 3GPP TSG RAN WG1 Meeting #101-e, e-Meeting, 3GPP, June 2020 SUMMARY

[0010] A wider SCS such as 960 kHz can expect the effects as described above, on the other hand, considering implementation and the like, it is desirable to minimize the number of SCS to be supported for the frequency band of 52.6 to 71 GHz.

[0011] However, in the case where a wider SCS such as 960 kHz is supported in a high frequency band such as 52.6 to 71 GHz, there are parts that are not necessarily appropriate in the existing 3GPP specification.

[0012] For example, in the case where a wider SCS such as 960 kHz is supported, the symbol length becomes short, and high-speed operation of the terminal is required, but when the processing load of the terminal is considered, the setting of the current downlink control information (DCI: Downlink Control Information) is sometimes not appropriate.

[0013] Therefore, the following disclosure is completed in view of such a situation, and the object is to provide a terminal that can reduce the processing load related to downlink control information even in the case where a wider SCS such as 960 kHz is supported in a high frequency band such as 52.6 to 71 GHz.

[0014] One embodiment of the present disclosure is a terminal (UE 200) including a reception section (control signal · reference signal processing section 240) that receives downlink control information, and a control section (control section 270) that sets a downlink in accordance with the downlink control information, in the case where a second subcarrier spacing wider than a first subcarrier spacing is applied, the control section assumes that a slot to which an indication based on the downlink control information is applied is shifted backward from a slot containing the downlink control information.

[0015] One embodiment of the present disclosure is a terminal (UE 200) including a reception section (control signal · reference signal processing section 240) that receives downlink control information, and a control section (control section 270) that sets a downlink in accordance with the downlink control information, in the case where a second subcarrier spacing wider than a first subcarrier spacing is applied, the control section assumes that the number of slots indicated by the downlink control information is larger than the number of slots contained in a monitoring period of the downlink control information. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1is a whole schematic configuration diagram of the wireless communication system 10.

[0017] Figure 2 is a diagram showing a frequency range used in the wireless communication system 10.

[0018] Figure 3 is a diagram showing a structure example of a radio frame, a subframe, and a slot used in the wireless communication system 10.

[0019] Figure 4 is a functional block configuration diagram of the UE 200.

[0020] Figure 5 is a diagram showing an example of communication timing related to setting of a wireless link including a DCI-based downlink (DL).

[0021] Figure 6 is a diagram showing a relationship example (one) of a slot to which an indication of DCI is applied, a minimum time offset of DCI, and a monitoring period of DCI.

[0022] Figure 7 is a diagram showing a relationship example (two) of a slot to which an indication of DCI is applied, a minimum time offset of DCI, and a monitoring period of DCI.

[0023] Figure 8 is a diagram showing an example of a slot to which an indication of DCI is applied (a case of a pattern in which the same slot format is repeated).

[0024] Figure 9 is a diagram showing a basic structure example of IAB.

[0025] Figure 10 is a diagram showing an example of a hardware structure of the wireless communication nodes 100A to 100C and the UE 200. DETAILED DESCRIPTION

[0026] Hereinafter, the embodiments will be described with reference to the drawings. In addition, the same or similar functions, structures and processes are given the same or similar reference numerals, and redundant descriptions are appropriately omitted.

[0027] (1) Whole Schematic Configuration of Wireless Communication System

[0028] Figure 1is a whole schematic configuration diagram of the wireless communication system 10 of the present embodiment. The wireless communication system 10 is a wireless communication system in accordance with 5G New Radio (NR: New Radio), and includes a next generation-radio access network 20 (hereinafter, referred to as NG-RAN 20) and a terminal 200 (hereinafter, referred to as UE 200, user equipment, UE). In addition, the wireless communication system 10 can also be a wireless communication system in accordance with a manner called Beyond 5G, 5G Evolution, or 6G.

[0029] The NG-RAN 20 includes a radio base station 100 (hereinafter, referred to as gNB 100). In addition, the specific structure of the wireless communication system 10 including the number of gNBs and UEs is not limited to the example shown. Figure 1

[0030] The NG-RAN 20 actually includes a plurality of NG-RAN nodes, specifically, a plurality of gNBs (or ng-eNBs), connected to a core network (5GC, not shown) in accordance with 5G. In addition, the NG-RAN 20 and the 5GC can be simply described as "network".

[0031] The gNB 100 is a radio base station in accordance with 5G, and performs wireless communication in accordance with 5G with the UE 200. The gNB 100 and the UE 200 can support massive MIMO (Multiple Input Multiple Output) that generates an antenna beam (hereinafter, referred to as beam BM) having higher directivity by controlling the radio signals transmitted from a plurality of antenna elements, carrier aggregation (CA) that bundles a plurality of component carriers (CCs), and dual connectivity (DC) that simultaneously communicates with two NG-RAN nodes respectively, and the like.

[0032] The gNB 100 can transmit a plurality of beams BM that differ in transmission direction (may also be simply referred to as direction, or radiation direction or coverage range, etc.) in a space division and time division manner. In addition, the gNB 100 can also simultaneously transmit a plurality of BMs.

[0033] Furthermore, the wireless communication system 10 can support a plurality of frequency ranges (FRs). Figure 2 The frequency ranges used in the wireless communication system 10 are shown.

[0034] • FR1: 410 MHz to 7.125 GHz

[0035] • FR2: 24.25 GHz to 52.6 GHz

[0036] ​In FR1, a sub-carrier spacing (SCS: Sub-Carrier Spacing) of 15, 30, or 60 kHz can be used, and a bandwidth (BW) of 5 to 100 MHz is used. The frequency of FR2 is higher than that of FR1, and a SCS of 60 or 120 kHz (240 kHz can also be included) can be used, and a bandwidth (BW) of 50 to 400 MHz is used.

[0037] In addition, the SCS can also be interpreted as numerology. Numerology is defined in 3GPP TS 38.300, and corresponds to one sub-carrier spacing in the frequency domain.

[0038] Also, the wireless communication system 10 also supports a frequency band higher than the frequency band of FR2. Specifically, the wireless communication system 10 supports a frequency band exceeding 52.6 GHz up to 71 GHz. For convenience, such a high frequency band is referred to as "FR2x".

[0039] To address such a problem, in the case of using a band exceeding 52.6 GHz, a cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM: Cyclic Prefix-Orthogonal Frequency Division Multiplexing) / discrete Fourier transform-spread OFDM (DFT-S-OFDM: Discrete Fourier Transform-Spread) with a larger sub-carrier spacing (SCS: Sub-Carrier Spacing) can be applied.

[0040] Furthermore, in such a high frequency band as FR2x, as described above, an increase in phase noise between carriers becomes a problem. Therefore, it can be necessary to apply a larger (wider) SCS or a single carrier waveform.

[0041] The larger the SCS, the shorter the symbol / cyclic prefix (CP: Cyclic Prefix) period and the slot period (in the case of maintaining a structure of 14 symbols / slot). Figure 3 An example of the structure of a radio frame, a subframe, and a slot used in the wireless communication system 10 is shown. In addition, Table 1 shows the relationship between the SCS and the symbol period.

[0042] [Table 1]

[0043]

[0044] As shown in Table 1, the larger (wider) the SCS, the shorter the symbol duration (and the slot duration) is maintained at 14 symbols / slot. In addition, the symbol duration can be referred to as a symbol length, a time direction, or a time domain, and the like. Further, the frequency direction can also be referred to as a frequency domain, a resource block, a subcarrier, a BWP (Bandwidth part), and the like.

[0045] In addition, the number of symbols constituting one slot can not necessarily be 14 symbols (for example, 28, 56 symbols). Further, the number of slots per subframe can also differ depending on the SCS.

[0046] Further, in the wireless communication system 10, an SSB (SS / PBCH Block) constituted by a synchronization signal (SS) and a downlink physical broadcast channel (PBCH) can be used.

[0047] The SSB is mainly periodically transmitted from the network by the UE 200 in order to perform cell ID or reception timing detection at the start of communication. In NR, the SSB is also used for reception quality measurement for each cell. 5, 10, 20, 40, 80, 160 milliseconds, and the like can be specified as the transmission periodicity of the SSB. In addition, the UE 200 for initial access can assume a transmission periodicity of 20 milliseconds.

[0048] The network (NG-RAN 20) can notify the UE 200 of the index display (ssb-PositionsInBurst) of the actually transmitted SSB through system information (SIB1) or signaling of the radio resource control layer (RRC).

[0049] The SS is constituted by a primary synchronization signal (PSS) and a secondary synchronization signal (SSS).

[0050] The PSS is a known signal that the UE 200 initially attempts to detect in the cell search process. The SSS is a known signal that is transmitted in order to detect a physical cell ID in the cell search process.

[0051] The PBCH contains a system frame number (SFN) and an index for identifying the symbol position of a plurality of SS / PBCH blocks within a half frame (5 milliseconds), and the like, information required for the UE 200 to establish frame synchronization with the NR cell formed by the gNB 100 after detecting the SS / PBCH block.

[0052] Further, the PBCH can also contain system parameters required for receiving system information (SIB). Also, in the SSB, a demodulation reference signal (DMRS for PBCH) is also contained. The DMRS for PBCH is a known signal transmitted in order to measure the wireless channel state for demodulation of the PBCH.

[0053] (2) Functional block structure of wireless communication system

[0054] Next, the functional block structure of the wireless communication system 10 will be described. Specifically, the functional block structure of the UE 200 will be described.

[0055] Figure 4 is a functional block diagram of the UE 200. As shown in Figure 4 , the UE 200 has a wireless signal transceiver 210, an amplification section 220, a modulation / demodulation section 230, a control signal / reference signal processing section 240, an encoding / decoding section 250, a data transceiver 260, and a control section 270.

[0056] The wireless signal transceiver 210 transceives wireless signals in accordance with NR. The wireless signal transceiver 210 supports Massive MIMO, CA using a plurality of CCs in a bundle, and DC in which the UE simultaneously communicates with two NG-RAN nodes, and the like.

[0057] The amplification section 220 is configured by a PA (Power Amplifier) / LNA (Low Noise Amplifier), and the like. The amplification section 220 amplifies a signal output from the modulation / demodulation section 230 to a predetermined power level. Further, the amplification section 220 amplifies an RF signal output from the wireless signal transceiver 210.

[0058] The modulation / demodulation section 230 performs data modulation / demodulation, transmission power setting, resource block allocation, and the like for each predetermined communication target (gNB 100, and the like). In the modulation / demodulation section 230, cyclic prefix-orthogonal frequency division multiplexing / discrete Fourier transform-spread OFDM (CP-OFDM / DFT-S-OFDM) can be applied. Further, DFT-S-OFDM is not only used for uplink (UL), but can also be used for downlink (DL).

[0059] The control signal / reference signal processing section 240 performs processing related to various control signals transmitted and received by the UE 200, and processing related to various reference signals transmitted and received by the UE 200.

[0060] Specifically, the control signal / reference signal processing section 240 receives various control signals transmitted from the gNB 100 via a predetermined control channel, such as a radio resource control layer (RRC) control signal. In addition, the control signal / reference signal processing section 240 transmits various control signals to the gNB 100 via a predetermined control channel.

[0061] The control signal / reference signal processing section 240 performs processing using reference signals (RSs) such as a demodulation reference signal (DMRS) and a phase tracking reference signal (PTRS).

[0062] The DMRS is a terminal-specific reference signal (pilot signal) known between the base station and the terminal, which is used to estimate a fading channel used in data demodulation. The PTRS is a terminal-specific reference signal for the purpose of estimating phase noise that becomes a problem in a high frequency band.

[0063] In addition, among the reference signals, in addition to the DMRS and the PTRS, a channel state information reference signal (CSI-RS), a sounding reference signal (SRS), and a positioning reference signal (PRS) for position information can be included.

[0064] Further, the channel includes a control channel and a data channel. The control channel can include a PDCCH (Physical Downlink Control Channel), a PUCCH (Physical Uplink Control Channel), a RACH (including a random access channel, downlink control information (DCI) of a random access radio network temporary identifier (RA-RNTI)), a physical broadcast channel (PBCH), and the like.

[0065] Further, the data channel includes a PDSCH (Physical Downlink Shared Channel), a PUSCH (Physical Uplink Shared Channel), and the like. Data can mean data transmitted via the data channel.

[0066] The PUCCH can be interpreted as an UL physical channel for transmission of UCI (Uplink Control Information). The UCI can be transmitted by either of the PUCCH or the PUSCH depending on the situation. In addition, downlink control information (DCI) can be transmitted always by the PDCCH, or can be transmitted without going through the PDSCH.

[0067] The UCI can include at least any of ACK / NACK of a hybrid automatic repeat request (HARQ), a scheduling request (SR) from the UE 200, and channel state information (CSI).

[0068] Further, the timing of transmitting the PUCCH and the radio resource can be controlled by the DCI as with the data channel.

[0069] In the present embodiment, the control signal / reference signal processing section 240 receives downlink control information (DCI). In the present embodiment, the control signal / reference signal processing section 240 constitutes a receiving section. For example, the control signal / reference signal processing section 240 can receive the DCI via a PDCCH. In addition, the DCI can be transmitted via a channel other than the PDCCH.

[0070] Further, the control signal / reference signal processing section 240 can transmit, to the network, a capability of the UE 200 with respect to the DCI. In the present embodiment, the control signal / reference signal processing section 240 constitutes a transmitting section.

[0071] Specifically, the control signal / reference signal processing section 240 can transmit, to the network, whether or not an offset between a time slot in which an indication based on the DCI is applied and the time slot containing the DCI corresponds.

[0072] For example, in the DCI format 2_0 for time slot format notification for a group of a plurality of UEs 200, the value of the field of the slot format indication (SFI: Slot Format Indication) is specified to show the UE 200 the slot format of the DL BWP or the UL BWP starting from the time slot in which the UE 200 detects the DCI format 2_0. That is, the time slot containing the DCI and the time slot in which the indication based on the DCI is applied can be together.

[0073] In addition, the slot format can be interpreted to indicate whether or not each symbol within a time slot is a Flexible (F) format that is usable for downlink (DL), uplink (UL), or either of the DL or the UL.

[0074] In the present embodiment, in consideration of a wider SCS such as 960 kHz, there is an offset between the time slot in which the indication based on the DCI is applied and the time slot containing the DCI, that is, the time slot in which the indication based on the DCI is applied and the time slot containing the DCI can be different.

[0075] The control signal / reference signal processing section 240 can transmit, to the network, whether or not the offset of such a time slot corresponds, and / or the level (for example, the number of time slots or the number of symbols) of the offset, and the like.

[0076] The encoding / decoding section 250 performs, for each predetermined communication target (the gNB 100 or another gNB), the division / joining of data, the channel encoding / decoding, and the like.

[0077] Specifically, the encoding / decoding section 250 divides data output from the data transceiving section 260 into a predetermined size, and performs channel coding on the divided data. Further, the encoding / decoding section 250 decodes data output from the modulation / demodulation section 230, and concatenates the decoded data.

[0078] The data transceiving section 260 performs transmission and reception of protocol data units (PDU) and service data units (SDU). Specifically, the data transceiving section 260 performs assembly / disassembly of PDUs / SDUs in a plurality of layers (medium access control layer (MAC), radio link control layer (RLC), and packet data convergence protocol layer (PDCP), etc.). Further, the data transceiving section 260 performs error correction and retransmission control of data in accordance with hybrid automatic repeat request (HARQ).

[0079] The control section 270 controls each functional block constituting the UE 200. In particular, in the present embodiment, the control section 270 can set a downlink (DL) in accordance with downlink control information (DCI).

[0080] Specifically, for example, in a case where a wider SCS than 120 kHz or 240 kHz (1st subcarrier spacing) is applied, for example, a case where a SCS of 960 kHz (2nd subcarrier spacing) is applied, the control section 270 can assume that a time slot to which an application of a time slot format indicated based on DCI is applied is offset backward from a time slot in which the DCI is included.

[0081] More specifically, the control section 270 can assume that an offset of at least 1 time slot is provided between a time slot in which the DCI is included and a time slot to which an application of a time slot format indicated based on the DCI is applied. That is, the control section 270 can assume that an offset between a time slot to which an application of a time slot format indicated based on the DCI is applied and a time slot in which the DCI is included is 1 time slot or more.

[0082] The time slot in which the DCI is included can be interpreted as a time slot in which reception of the DCI is started via a PDCCH or the like, and the time slot to which an application of a time slot format indicated based on the DCI is applied can be interpreted as a time slot in which application of the time slot format notified by the DCI is started.

[0083] In addition, as described above, the offset is not necessarily in units of time slots, and can be in units of symbols or subframes, or the like. Alternatively, the offset can also be expressed directly by time (for example, μ seconds).

[0084] Further, in a case where SCS (2nd subcarrier spacing) of 960 kHz or the like wider than SCS (1st subcarrier spacing) of 120 kHz or 240 kHz or the like is applied, the control section 270 can assume that the number of slots indicated by the DCI is larger than the monitoring period of the DCI. Specifically, the control section 270 can assume that the minimum number of slots indicated by the DCI is larger than the monitoring period of the DCI which can be expressed by the number of slots.

[0085] Specifically, the minimum number of slots indicated by the DCI can be assumed to be larger than the monitoring period of the DCI which can be expressed by the number of slots. The number of slots indicated by the DCI can be interpreted as the number of slots in which the slot format is specified by the DCI.

[0086] Further, the control section 270 can assume that the monitoring period of the DCI in a case where SCS (2nd subcarrier spacing) of 960 kHz or the like is applied is longer than the monitoring period of the DCI in a case where SCS (1st subcarrier spacing) of 120 kHz or 240 kHz or the like is applied. The monitoring period is not necessarily in units of slots, and can be in units of symbols or subframes or the like. Alternatively, the monitoring period can be directly expressed by time (for example, μ seconds).

[0087] (3) Action of wireless communication system

[0088] Next, the action of the wireless communication system 10 will be described. Specifically, the control action of the UE 200 based on the downlink control information (DCI) in a case where SCS of 960 kHz or the like wider is applied will be described.

[0089] (3.1) Premise

[0090] As described above, in a case where NR-U is applied in a frequency band of 52.6 to 71 GHz, SCS of 960 kHz or the like wider has advantages such as efficient coexistence due to being set to a channel bandwidth (about 2 GHz) equivalent to IEEE 802.11ad / ay, and reduction in overhead of PTRS.

[0091] On the other hand, it is desirable to minimize the number of SCSs to be supported for the frequency band of 52.6 to 71 GHz, taking into account implementation or the like.

[0092] For example, in a case where NR-U is applied in a frequency band of 52.6 to 71 GHz, it is considered that numerology (for example, SCS of 960 kHz) for supporting one 2 GHz bandwidth and other numerologies (for example, SCS of 120 kHz) based on mere extension of FR2 are sufficient, and the other numerologies can not be supported.

[0093] In the case where a simple extension of FR2 (e.g., SCS of 120 kHz) is applied to the frequency band of 52.6-71 GHz, it is considered that the specifications of Release 15 / 16 of 3GPP can be largely reused. However, in the case where SCS of 960 kHz is applied, it is obvious that special handling different from Release 15 / 16 of 3GPP is required.

[0094] In the case where SCS of 960 kHz is applied, it is expected that, due to the shortening of the time (length) of symbols and slots, there is an impact related to various timings. In particular, considering the processing capability of UE 200 and the like, it is likely that dynamic indication of the slot format to UE 200 cannot be applied immediately from the slot in which the indication is provided by DCI (i.e., the slot containing DCI). In addition, this problem is common not only to the slot format but also to all dynamic instructions based on DCI.

[0095] (3.2) Action Example

[0096] In the case where SCS of 960 kHz or the like is applied, UE 200 can act in accordance with any one of the following with respect to DCI.

[0097] (Alt. 1): It is assumed that a minimum time offset is applied between the slot containing DCI and the slot in which the indication of the DCI is applied.

[0098] The minimum time offset can be at least one slot, or a plurality of slots of two or more. The minimum time offset can be defined in advance as a specification of 3GPP, or can be set by high layer signaling such as RRC. Alternatively, the minimum time offset can be dynamically indicated, for example, in accordance with a change in the capability of UE 200 or the like.

[0099] (Alt. 2): It is assumed that the minimum number of slots indicated by DCI is larger than the number of slots indicating the monitoring period of DCI.

[0100] The difference (which can be referred to as a margin) between the minimum number of slots and the number of slots indicating the monitoring period of DCI (which can be the monitoring period of PDCCH) can be defined in advance as a specification of 3GPP, or can be set by high layer signaling such as RRC (which can be based on the capability of UE 200 or the like).

[0101] In addition, as described above, for example, in DCI format 2_0, the value of the field of slot format indication (SFI: Slot Format Indication) is specified to show UE 200 the slot format of the DL BWP or the UL BWP starting from the slot in which UE 200 detects DCI format 2_0.

[0102] Further, in the DCI format 2_0, the minimum number of slots is specified to be the same as or above the monitoring periodicity of the PDCCH.

[0103] Figure 5 An example of communication timing related to setting of a wireless link including a DCI-based downlink (DL) is shown. As shown, the UE 200 reports a UE capability (UE capability) containing a minimum time offset (Minimum time offset) as described above to the network (NG-RAN 20) (S10). Here, it is assumed that the UE 200 corresponds to the minimum time offset. In addition, the UE capability can also be reported by high layer signaling such as RRC. Figure 5

[0104] The network, after obtaining the UE capability from the UE 200, decides the content of the DCI including an SFI indication (SFI indication) according to whether or not the correspondence of the minimum time offset is possible, and transmits the decided DCI to the UE 200 (S20). As described above, in the present embodiment, the DCI format 2_0 is assumed.

[0105] The UE 200 receives the DCI and obtains the slot format (S30). Specifically, the UE 200 assumes that the slot to which the DCI-based indication is applied is shifted backward from the slot containing the DCI according to the minimum time offset.

[0106] Further, the UE 200 can decide the slot to which the DCI-based indication is applied according to the minimum time offset, and apply the indicated slot format.

[0107] In addition, as described above, the UE 200 can assume that the minimum number of slots indicated by the DCI is larger than the number of slots representing the monitoring periodicity of the DCI (refer to Alt. 2).

[0108] The network and the UE 200 set the DL in accordance with the slot format, and set the uplink (S40).

[0109] Figure 6 And Figure 7 An example of the relationship between the slot to which the indication of the DCI is applied, the minimum time offset (Minimum time offset) of the DCI, and the monitoring periodicity of the DCI is shown.

[0110] In Figure 6 And Figure 7 the hatched part corresponds to the DCI. In addition, the rectangular frames respectively correspond to slots. As Figure 6 And​Figure 7 As shown, the Minimum time offset can be 1 slot or more.

[0111] Further, as Figure 6 shown, the number of slots indicated by the DCI can be the same as the number of slots (4 slots) of the monitoring periodicity of the DCI, as Figure 7 shown, the number of slots indicated by the DCI can be larger than the number of slots (4 slots) of the monitoring periodicity of the DCI.

[0112] In Figure 6 and Figure 7 the example shown, the DCI (DCI format 2_0) can indicate the slot format from the slot containing the DCI to the slot 4 slots later, that is, the slot format containing the slot containing the DCI as a target in the next DCI monitoring period.

[0113] Figure 6 The difference between the example shown in Figure 7 and the example shown is whether or not to include "indication of slot format of slot containing DCI" (refer to the arrow in the figure).

[0114] Further, in the case of a wider SCS such as 960 kHz, the minimum value of the monitoring periodicity of the DCI (which can be replaced by the monitoring periodicity of the PDCCH) is preferably larger than in the case of a narrower SCS such as 120 kHz or 240 kHz. Likewise, the minimum number of slots indicated by the DCI is also preferably larger than in the case of a narrower SCS such as 120 kHz or 240 kHz.

[0115] Therefore, a part of the candidate values applied to a narrower SCS such as 120 kHz or 240 kHz can not be applied to a wider SCS such as 960 kHz. Or, in the case of a wider SCS such as 960 kHz, the candidate values can be larger. That is, the maximum number of slots indicated by the DCI can also be larger than in the case of a narrower SCS such as 120 kHz or 240 kHz.

[0116] Further, regarding the indication of the slot format, in the case of a pattern of repeating the same slot format, the application of the slots indicated by the DCI can be changed as follows.

[0117] Figure 8 Examples of slots to which the indication of the DCI is applied (in the case of a pattern of repeating the same slot format) are shown. As Figure 8As illustrated, in a case where a pattern of slot formats of 4 slots is dynamically instructed by DCI (hatched part), the UE 200 can assume repetition of the pattern of slot formats (4 slots) until a new DCI-based instruction is provided. At least any one of whether the UE 200 assumes such repetition and / or the number of repetitions can be directly set for the UE 200 by the gNB 100 or can be instructed by signaling.

[0118] The UE 200, upon receiving a new DCI, can follow the pattern of slot formats instructed by the DCI.

[0119] (4) Effects / Advantages

[0120] According to the above-described embodiments, the following effects can be obtained. Specifically, for example, in a case where a wider SCS than 120 kHz or 240 kHz (1st subcarrier spacing), such as 960 kHz (2nd subcarrier spacing), is applied, the UE 200 can assume that the slot to which the DCI-based instruction is applied is offset backward (by 1 slot or more) from the slot in which the DCI is included.

[0121] Accordingly, in a high frequency band such as 52.6 to 71 GHz, a wider SCS such as 960 kHz is supported, and even in a case where the symbol length is shortened, the processing load related to the DCI can be reduced. That is, in a case where the offset is not assumed, high-speed processing in a short time matching the shortened symbol length can be required, but according to the UE 200, such processing can be avoided and a wider SCS such as 960 kHz can be supported.

[0122] In the present embodiment, in a case where a wider SCS such as 960 kHz is applied, the UE 200 can assume that the number of slots instructed by the DCI is larger than the monitoring period of the DCI. Accordingly, the UE 200 can determine the slot format, and can further reduce the processing load based on the DCI until a slot later than the reception timing of the next DCI.

[0123] In the present embodiment, the UE 200 can assume that the monitoring period of the DCI in a case where a SCS such as 960 kHz (2nd subcarrier spacing) is applied is longer than the monitoring period of the DCI in a case where a SCS such as 120 kHz or 240 kHz (1st subcarrier spacing) is applied. Accordingly, even in a case where the symbol length is shortened, the UE 200 can further reduce the processing load related to the DCI.

[0124] In the present embodiment, the UE 200 can transmit the capability of the UE 200 related to the DCI to the network. Therefore, the network can set appropriate DCI in accordance with the capability of the UE 200 related to the DCI, specifically, in accordance with the UE capability indicating "corresponding possibility or the like of the offset between the time slot to which the indication based on the DCI is applied and the time slot containing the DCI". The network can set the DCI in accordance with the capability of the UE 200.

[0125] (5) Other Embodiments

[0126] The above describes the embodiment, but it is obvious that the present application is not limited to the description of the embodiment, and various modifications and improvements can be made by those skilled in the art.

[0127] For example, the above-described action related to the DCI can be applied in Integrated Access and Backhaul (IAB) in which wireless access to the UE 200 and wireless backhaul between the wireless communication nodes are integrated.

[0128] Figure 9 is a diagram showing an example of a basic structure of IAB. As shown in Figure 9 the wireless communication node 100A constitutes an IAB donor in IAB, and the wireless communication node 100B (and the wireless communication node 100C) can constitute an IAB node in IAB.

[0129] In addition, the IAB donor can be referred to as an upper node in relation to the IAB node. Also, the IAB donor can be referred to as a parent node. Further, the IAB donor can not have a CU, as well as the parent node is used only as a name in relation to the IAB node (or child node). The IAB node can be referred to as a lower node in relation to the IAB donor (parent node).

[0130] The wireless communication nodes 100A, 100B, 100C can set wireless access (Access link) to the UE 200 and wireless backhaul (Backhaul link) between the wireless communication nodes via the cell. Specifically, a backhaul (transmission path) based on a wireless link can be set between the wireless communication node 100A and the wireless communication node 100B, and between the wireless communication node 100B and the wireless communication node 100C.

[0131] In the radio resources used by the DU, based on the perspective of the DU, the downlink (DL), uplink (UL), and flexible time resource (F) are classified as any one of "Hard (H)," "Soft (S)," or "Not Available (NA)." In addition, within the Soft (S), "available" or "not available" is also defined.

[0132] The flexible time resource (F) is a radio resource (time resource and / or frequency resource) that can be used for either DL or UL. In addition, "Hard" means that the corresponding time resource is always available as a radio resource for a DU child link connected to a child node or a UE, and "Soft" means that the corresponding time resource is explicitly or implicitly controlled by an IAB node (parent node) as to whether it can be used as a DU resource for a DU child link.

[0133] Also, in the case of Soft (S), the radio resource to be notified can be decided depending on whether it is IA or INA.

[0134] "IA" means that the DU resource is explicitly or implicitly shown to be available. In addition, "INA" means that the DU resource is explicitly or implicitly shown to be not available.

[0135] In the case of IAB, in addition to the DCI format 2_0 described above, the above-described actions related to DCI can also be performed with respect to the DCI format 2_5 that notifies of the availability of the Soft resource.

[0136] In addition, the names of the IAB donor and the IAB node, and the like can be different as long as the structure of the wireless communication node that integrates the wireless backhaul between wireless communication nodes such as gNB and the wireless access to terminals is adopted. For example, it can simply be referred to as a first node, a second node, and the like, or it can be referred to as an upper node, a lower node, or a relay node, an intermediate node, and the like.

[0137] In addition, the wireless communication node can simply be referred to as a communication device or a communication node, or it can be replaced with a wireless base station.

[0138] Further, in the above-described embodiment, an example in which 960 kHz SCS is applied in FR2x is described, but SCS wider than SCS applied in FR1 or FR2, for example, 480 kHz SCS can be applied in FR2x.

[0139] The block configuration diagram used in the description of the above-described embodiment Figure 4 ) shows blocks in units of functions. These functional blocks (structural units) are realized by any combination of at least one of hardware and software. Further, the method of realizing each functional block is not particularly limited. That is, each functional block can be realized using one device that is physically or logically integrated, or two or more devices that are physically or logically separated can be directly or indirectly (for example, using wired, wireless, or the like) connected and realized using the plurality of devices. The functional blocks can also be realized by combining software with the above one device or the above plurality of devices.

[0140] The functions include judging, deciding, determining, calculating, computing, processing, deriving, investigating, searching, recognizing, receiving, transmitting, outputting, accessing, resolving, selecting, choosing, establishing, comparing, assuming, expecting, considering, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, and the like, but are not limited thereto. For example, a functional block (structural unit) that causes transmission to function is referred to as a transmitting unit or a transmitter. In any case, as described above, the method of realization is not particularly limited.

[0141] Also, the above-described wireless communication nodes 100A to 100C and the UE 200 (the device) can also function as a computer that performs processing of the wireless communication method of the present disclosure. Figure 10 is a diagram showing an example of a hardware structure of the device. As shown in Figure 10 , the device can also be configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, and a bus 1007.

[0142] In addition, in the following description, the term "device" can be replaced with "circuitry", "device", "unit", and the like. The hardware structure of the device can be configured to include one or a plurality of the illustrated devices, or can be configured to not include a part of the devices.

[0143] The functions of the device (refer to Figure 4 ) are realized by any hardware element of the computer device or a combination of the hardware elements.

[0144] Furthermore, each function in the device is realized by reading a predetermined software (program) into the hardware such as the processor 1001, the memory 1002, and the like, so that the processor 1001 performs an operation and controls at least one of communication of the communication device 1004 or reading and writing of data in the memory 1002 and the storage 1003.

[0145] The processor 1001 controls the entire computer, for example, by causing an operating system to operate. The processor 1001 can also be configured by a central processing device (CPU) including an interface with a peripheral device, a control device, an arithmetic device, a register, and the like.

[0146] Furthermore, the processor 1001 reads a program (program code), a software module, data, and the like from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and performs various processes based on the program. As the program, a program that causes the computer to execute at least a part of the operations described in the above-described embodiments is used. Also, regarding the above-described various processes, although it is described that the above-described various processes are executed by one processor 1001, the above-described various processes can be executed by two or more processors 1001 simultaneously or sequentially. The processor 1001 can also be mounted by one or more chips. In addition, the program can be transmitted from a network via a telecommunication line.

[0147] The memory 1002 is a computer-readable recording medium, and can be configured by at least one of a read only memory (ROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), a random access memory (RAM), and the like. The memory 1002 can also be referred to as a register, a cache, a main storage, and the like. The memory 1002 can hold a program (program code), a software module, and the like that can execute the method related to one embodiment of the present disclosure.

[0148] The storage 1003 is a computer-readable recording medium, and can be constituted by at least one of, for example, an optical disk such as a compact disc read-only memory (CD-ROM), a hard disk drive, a floppy disk, a magneto-optical disk (e.g., a compact disk, a digital versatile disk, a Blu-ray (registered trademark) disk), a smart card, a flash memory (e.g., a card, a stick, a key drive), a Floppy (registered trademark) disk, a magnetic stripe, and the like. The storage 1003 can also be referred to as an auxiliary storage device. The above-described recording medium can be, for example, a database, a server, and another appropriate medium that includes at least one of the memory 1002 and the storage 1003.

[0149] The communication device 1004 is hardware (a transceiver device) for performing communication between computers via at least one of a wired network and a wireless network, and is also referred to as a network device, a network controller, a network card, a communication module, and the like.

[0150] The communication device 1004 can also be constituted so as to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, and the like, for example, in order to realize at least one of frequency division duplex (FDD) and time division duplex (TDD).

[0151] The input device 1005 is an input device (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, and the like) that receives an input from the outside. The output device 1006 is an output device (e.g., a display, a speaker, an LED lamp, and the like) that performs an output to the outside. In addition, the input device 1005 and the output device 1006 can also be integrally constituted (e.g., a touch panel).

[0152] Furthermore, the processor 1001 and each of the devices such as the memory 1002 are connected through a bus 1007 for communicating information. The bus 1007 can be constituted by a single bus, or can be constituted by different buses between the devices.

[0153] Also, the apparatus can be configured to include a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), a field programmable gate array (FPGA), or the like hardware, and a part or all of each functional block can be implemented by the hardware. For example, the processor 1001 can also use at least one of these hardware to install.

[0154] Further, the notification of the information is not limited to the form / implementation described in the present disclosure, and can be performed using other methods. For example, the notification of the information can be implemented by physical layer signaling (e.g., downlink control information (DCI), uplink control information (UCI), higher layer signaling (e.g., RRC signaling, medium access control (MAC) signaling, broadcast information (master information block (MIB), system information block (SIB)), other signals, or a combination thereof. Further, the RRC signaling can also be referred to as an RRC message, and for example, can be an RRC connection setup message, an RRC connection reconfiguration message, or the like.

[0155] The forms / embodiments described in the present disclosure can also be applied to at least one of a Long Term Evolution (LTE), LTE-Advanced (LTE-A), SUPER 3G, IMT-Advanced, a fourth generation mobile communication system (4G), a fifth generation mobile communication system (5G), Future Radio Access (FRA), New Radio (NR), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), a system using another appropriate system, and a next-generation system extended therefrom. In addition, a plurality of systems (for example, at least one of LTE and LTE-A and 5G, and the like) can be combined and applied.

[0156] For the processes, timing, flow, and the like of the forms / embodiments described in the present disclosure, the order can be changed without contradiction. For example, for the methods described in the present disclosure, the elements of various steps are prompted using the order of the examples, but are not limited to the specific order prompted.

[0157] In the present disclosure, a specific action by a base station is sometimes performed by an upper node thereof according to the situation. In a network constituted by one or a plurality of network nodes having a base station, it is obvious that various actions performed for communication with a terminal can be performed by at least one of the base station and other network nodes (for example, consider MME or S-GW, or the like, but not limited thereto) other than the base station. In the above, a case where the other network nodes are one is exemplified, but the other network nodes can also be a combination of a plurality of other network nodes (for example, MME and S-GW).

[0158] Information, signals (information, and the like) can be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). It can also be input or output via a plurality of network nodes.

[0159] The inputted or outputted information can be stored in a specific location (e.g., a memory) or can be managed using a management table. The inputted or outputted information can be overwritten, updated, or appended. The outputted information can also be deleted. The inputted information can also be transmitted to another device.

[0160] The determination can be made by a value (0 or 1) represented by 1 bit, by a Boolean value (true or false), or by a comparison of numerical values (e.g., a comparison with a predetermined value).

[0161] The forms / embodiments described in the present disclosure can be used individually, in combination, or switched according to execution. In addition, the notification of predetermined information is not limited to being performed explicitly (e.g., a notification of "X is") or implicitly (e.g., a notification of the predetermined information is not performed).

[0162] As for software, whether referred to as software, firmware, middleware, microcode, hardware description language, or by other names, it should be broadly interpreted as including any command, command set, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, etc.

[0163] In addition, software, commands, information, etc. can be transmitted and received via a transmission medium. For example, in a case where software is transmitted from a website, a server, or another remote source using at least one of wired technology (coaxial cable, optical fiber cable, twisted pair cable, Digital Subscriber Line (DSL), etc.) and wireless technology (infrared rays, microwaves, etc.), at least one of these wired technology and wireless technology is included in the definition of the transmission medium.

[0164] The information, signals, etc. described in the present disclosure can also be represented using any of a variety of different technologies. For example, data, commands, instructions, information, signals, bits, symbols, chips, etc. that can be involved in the overall description herein can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0165] Also, for the terms explained in the present disclosure and the terms required for understanding the present disclosure, terms having the same or similar meanings can be replaced. For example, at least one of a channel and a symbol can also be a signal (signaling). Also, the signal can be a message. Also, a component carrier (CC) can also be referred to as a carrier frequency, a cell, a frequency carrier, etc.

[0166] The terms such as "system" and "network" used in the present disclosure can be used interchangeably.

[0167] Also, the information, parameters, etc. explained in the present disclosure can be expressed using absolute values, can be expressed using relative values from predetermined values, and can be expressed using corresponding other information. For example, a radio resource can also be indicated by an index.

[0168] The names used for the above-described parameters are non-limiting in any respect. Further, the formulas, etc. using these parameters are sometimes different from the contents explicitly disclosed in the present disclosure. Various channels (for example, PUCCH, PDCCH, etc.) and information elements can be identified by appropriate names, and thus various names allocated to these various channels and information elements are non-limiting in any respect.

[0169] In the present disclosure, the terms of "base station (BS)", "wireless base station", "fixed station", "NodeB", "eNodeB (eNB)", "gNodeB (gNB)", "access point", "transmission point", "reception point", "transmission / reception point", "cell", "sector", "cell group", "carrier", "component carrier", etc. can be used interchangeably. Sometimes, the base station is also called with the terms of macro cell, small cell, femto cell, pico cell, etc.

[0170] The base station can accommodate one or a plurality of (for example, 3) cells (also referred to as sectors). In the case where the base station accommodates a plurality of cells, the coverage area of the base station as a whole can be divided into a plurality of smaller areas, and each of the smaller areas can also be provided with a communication service by a base station subsystem (for example, a small base station for indoor use (Remote Radio Head (RRH)).

[0171] The term of "cell" or "sector" refers to a part or the whole of the coverage area of at least one of the base station and the base station subsystem that provides a communication service in the coverage.

[0172] In the present disclosure, the terms "mobile station (MS)", "user terminal", "user equipment (UE)", "terminal", and the like can be used interchangeably.

[0173] For a mobile station, the following terms are also used by those skilled in the art: subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.

[0174] At least one of the base station and the mobile station can also be referred to as a transmitting apparatus, a receiving apparatus, a communication apparatus, and the like. In addition, at least one of the base station and the mobile station can be a device mounted on a moving body, the moving body itself, and the like. The moving body can be a vehicle (for example, an automobile, an airplane, and the like), can be a moving body that moves in a unmanned manner (for example, a drone, an autonomous vehicle, and the like), and can be a robot (manned or unmanned). In addition, at least one of the base station and the mobile station also includes an apparatus that does not necessarily move at the time of communication operation. For example, at least one of the base station and the mobile station can be an Internet of Things (IoT) device such as a sensor.

[0175] Furthermore, the base station in the present disclosure can be replaced with the mobile station (user terminal, hereinafter the same). For example, with respect to a structure in which communication between the base station and the mobile station is replaced with communication between a plurality of mobile stations (for example, can also be referred to as Device-to-Device (D2D), Vehicle-to-Everything (V2X), and the like), each form / embodiment of the present disclosure can also be applied. In this case, a structure in which the mobile station has a function possessed by the base station can also be provided. Furthermore, the expressions "uplink" and "downlink" and the like can be replaced with expressions corresponding to inter-terminal communication (for example, "side"). For example, the uplink channel, the downlink channel, and the like can be replaced with the side channel.

[0176] Likewise, the mobile station in the present disclosure can be replaced with the base station. In this case, a structure in which the base station has a function possessed by the mobile station can also be provided.

[0177] A radio frame can be composed of one or more slots in the time domain. In the time domain, one or more slots can also be referred to as a subframe. A subframe can be further composed of one or more slots in the time domain. A subframe can also be a fixed length of time (e.g., 1 ms) independent of numerology.

[0178] A numerology can be a communication parameter applied to at least one of transmission and reception of a certain signal or channel. The numerology can indicate at least one of, for example, a subcarrier spacing (SCS), a bandwidth, a symbol length, a cyclic prefix length, a transmission time interval (TTI), a number of symbols per TTI, a radio frame structure, a specific filtering processing by a transceiver in the frequency domain, a specific windowing processing by a transceiver in the time domain, and the like.

[0179] A slot can be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, and the like) in the time domain. A slot can be a time unit based on a numerology.

[0180] A slot can contain a plurality of mini-slots. Each mini-slot can be composed of one or more symbols in the time domain. Also, a mini-slot can be referred to as a sub-slot. A mini-slot can be composed of a smaller number of symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a mini-slot can be referred to as PDSCH (or PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot can be referred to as PDSCH (or PUSCH) mapping type B.

[0181] A radio frame, a subframe, a slot, a mini-slot, and a symbol each indicate a unit of time in transmitting a signal. A radio frame, a subframe, a slot, a mini-slot, and a symbol can be referred to by other names respectively.

[0182] For example, 1 subframe can also be referred to as a transmission time interval (TTI), a plurality of continuous subframes can also be referred to as a TTI, 1 slot or 1 mini-slot can also be referred to as a TTI. That is, at least one of the subframe and the TTI can be a subframe (1 ms) in the existing LTE, can be a period shorter than 1 ms (for example, 1-13 symbols), or can be a period longer than 1 ms. In addition, the unit representing the TTI can not be referred to as a subframe, but can be referred to as a slot, a mini-slot, or the like.

[0183] Here, the TTI, for example, refers to a minimum time unit of scheduling in wireless communication. For example, in the LTE system, the base station performs scheduling in which a radio resource (a frequency bandwidth, a transmission power, or the like, which can be used in each user terminal) is allocated to each user terminal in units of TTIs. In addition, the definition of the TTI is not limited thereto.

[0184] The TTI can be a transmission time unit of a data packet (a transport block) after channel coding, a code block, a codeword, or the like, or can be a processing unit of scheduling, link adaptation, or the like. In addition, when the TTI is given, a time interval (for example, the number of symbols) in which a transport block, a code block, a codeword, or the like is actually mapped can be shorter than the TTI.

[0185] In addition, in a case where 1 slot or 1 mini-slot is referred to as a TTI, one or more TTIs (that is, one or more slots or one or more mini-slots) can constitute a minimum time unit of scheduling. In addition, the number of slots (the number of mini-slots) constituting the minimum time unit of scheduling can be controlled.

[0186] A TTI having a time length of 1 ms can also be referred to as a normal TTI (a TTI in LTE Rel. 8-12), a normal TTI (normal TTI), a long TTI (long TTI), a normal subframe, a normal subframe (normal subframe), a long (long) subframe, a slot, or the like. A TTI shorter than the normal TTI can also be referred to as a shortened TTI, a short TTI (short TTI), a partial TTI (partial or fractional TTI), a shortened subframe, a short (short) subframe, a mini-slot, a sub-slot, a slot, or the like.

[0187] In addition, for a long TTI (long TTI) (for example, a normal TTI, a subframe, or the like), a TTI having a time length longer than 1 ms can be replaced, and for a short TTI (short TTI) (for example, a shortened TTI, or the like), a TTI having a TTI length shorter than the long TTI (long TTI) and having a TTI length of 1 ms or more can be replaced.

[0188] A resource block (RB) is a unit of resource allocation in the time domain and the frequency domain. In the frequency domain, it can include one or more contiguous subcarriers. The number of subcarriers included in an RB can be the same regardless of numerologies, for example, 12.

[0189] In addition, the time domain of an RB can include one or more symbols, which can be 1 slot, 1 mini-slot, 1 subframe, or 1 TTI in length. A 1 TTI, 1 subframe, etc. can each be composed of one or more resource blocks.

[0190] In addition, one or more RBs can be referred to as a physical RB (PRB), a subcarrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, etc.

[0191] In addition, a resource block can be composed of one or more resource elements (REs). For example, 1 RE can be a wireless resource area of 1 subcarrier and 1 symbol.

[0192] A bandwidth part (BWP) (which can also be referred to as a partial bandwidth, etc.) can indicate a subset of contiguous common RBs for a certain numerology in a certain carrier. Here, the common RBs can be determined by the index of the RBs with reference to a common reference point of the carrier. A PRB can be defined in a certain BWP and numbered within the BWP.

[0193] A BWP can include a BWP for UL (UL BWP) and a BWP for DL (DL BWP). One or more BWP can be configured for a UE within a carrier.

[0194] At least one of the configured BWP can be active, and a case in which the UE transmits / receives a predetermined signal / channel outside the active BWP can not be assumed. In addition, "cell", "carrier", etc. in the present disclosure can be replaced with "BWP".

[0195] The structures of the wireless frame, the subframe, the slot, the mini-slot, the symbol, and the like described above are merely examples. For example, the number of subframes included in a wireless frame, the number of slots per subframe or per wireless frame, the number of mini-slots included in a slot, the number of symbols included in a slot or a mini-slot, the number of RBs, the number of subcarriers included in an RB, and the structure of the number of symbols, the symbol length, the length of a cyclic prefix (CP), and the like within a TTI can be variously changed.

[0196] The terms "connected," "coupled," and / or "coupled to" used in the disclosure can be included to mean that two or more elements are either in direct or indirect communication with each other. The term "coupled" can also mean that two or more elements are either physically or logically connected or coupled to each other, or a combination thereof. For example, "connected" can be replaced with "accessed." In the disclosure, it can be considered that two elements are "connected" or "coupled" to each other using at least one of a wire, a cable, and a printed electrical connection, and as some non-limiting and non-inclusive examples, electromagnetic energy having a wavelength in a radio frequency domain, a microwave region, and an optical (both visible and invisible) region is used to "connect" or "couple" to each other.

[0197] The reference signal can be simply referred to as a Reference Signal (RS), and can be referred to as a Pilot according to an applied standard.

[0198] The term "based on" used in the disclosure does not mean "only based on" unless explicitly stated otherwise. In other words, the term "based on" means both "only based on" and "at least based on."

[0199] The term "unit" in the structure of each of the above-described apparatuses can be replaced with "part," "circuit," "device," or the like.

[0200] Any reference to the elements using the terms "1st," "2nd," and the like used in the disclosure does not mean that the number or order of the elements is limited. These terms can be used in the disclosure as a convenient method of distinguishing between two or more elements. Therefore, a reference to a 1st element and a 2nd element does not mean that only two elements are taken or that the 1st element must precede the 2nd element in any form.

[0201] When the terms "include", "including", and variations thereof are used in the present disclosure, these terms are intended to be inclusive in a manner similar to the term "comprising" as these terms are used in patent law. Also, the term "or" as used in the present disclosure is intended to mean an inclusive "or" rather than an exclusive "or". That is, unless specified otherwise, or clear from the context, the phrase "X employs A or B" is intended to mean that the

[0202] In the present disclosure, in the case where a definite article such as "a", "an", and "the" in English is added by translation, the present disclosure can also include the case where the noun following the definite article is plural.

[0203] The terms "determining" and "deciding" as used in the present disclosure sometimes also include a wide variety of actions. "Determining" and "deciding" can include, for example, an action of judging, calculating, computing, processing, deriving, investigating, searching (looking up, search, inquiry), for example, in a table, a database or other data structure, ascertaining, and the like. Furthermore, "determining" and "deciding" can include an action of receiving (for example, receiving information), transmitting (for example, transmitting information), inputting, outputting, accessing (for example, accessing data in a memory) and the like. Furthermore, "determining" and "deciding" can include an action of resolving, selecting, choosing, establishing, comparing and the like. That is, "determining" and "deciding" can include an action of considering any action as "determining" and "deciding". Furthermore, "determining" and "deciding" can be replaced with "assuming", "expecting", "considering" and the like.

[0204] In the present disclosure, the term "A and B are different" can also mean "A and B are mutually different". In addition, the term can also mean "A and B are different from C, respectively". The terms "separate", "combine" and the like can also be interpreted in the same manner as "different".

[0205] The present disclosure has been described in detail above, but it should be clear to those skilled in the art that the present disclosure is not limited to the embodiments described in the present disclosure. The present disclosure can be implemented as modifications and changes without departing from the spirit and scope of the present disclosure defined by the claims. Therefore, the purpose of the present disclosure is to illustrate, not to limit the present disclosure.

[0206] Label Explanation

[0207] 10: wireless communication system;

[0208] 20: NG-RAN;

[0209] 100: gNB;

[0210] 100A, 100B, 100C: wireless communication node;

[0211] 200: UE;

[0212] 210: wireless signal transceiver;

[0213] 220: amplification section;

[0214] 230: modulation / demodulation section;

[0215] 240: control signal / reference signal processing section;

[0216] 250: encoding / decoding section;

[0217] 260: data transceiver;

[0218] 270: control section;

[0219] BM: beam;

[0220] 1001: processor;

[0221] 1002: memory;

[0222] 1003: storage;

[0223] 1004: communication device;

[0224] 1005: input device;

[0225] 1006: output device;

[0226] 1007: bus.

Claims

1. A terminal having: a reception section that receives downlink control information; and a control section that sets a downlink in accordance with the downlink control information, the control section setting the downlink assuming that, in a case where a second subcarrier spacing wider than a first subcarrier spacing is applied, a time slot to which an indication based on the downlink control information is applied is offset backward in a time domain from a time slot containing the downlink control information, and that a maximum number of time slots indicated by the downlink control information is greater than a maximum number of time slots indicated by downlink control information in a case where the first subcarrier spacing is applied.

2. The terminal according to claim 1, wherein the control section assumes that a time slot offset between a time slot to which an indication based on the downlink control information is applied and a time slot containing the downlink control information is one time slot or more.

3. The terminal according to claim 1 or 2, wherein the terminal further has a transmission section that transmits a capability of the terminal related to the time slot offset to a network.

4. A terminal having: a reception section that receives downlink control information; and a control section that sets a downlink in accordance with the downlink control information, the control section setting the downlink assuming that, in a case where a second subcarrier spacing wider than a first subcarrier spacing is applied, a number of time slots indicated by the downlink control information is greater than a number of time slots contained in a monitoring period of the downlink control information.

5. The terminal according to claim 4, wherein the control section assumes that the monitoring period in a case where the second subcarrier spacing is applied is longer than the monitoring period in a case where the first subcarrier spacing is applied.

6. The terminal according to claim 4 or 5, characterized in that the terminal has a transmission section that transmits a capability of the terminal related to the downlink control information to a network. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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