Radio Communication Terminal and Method

Abstract

To properly transmit a signal having a multicarrier waveform, a user terminal includes: a transmission section that transmits an uplink signal using a shared uplink channel, the uplink signal having a multicarrier waveform over contiguous frequency resources; and a control section that controls frequency hopping of the uplink signal.

Description

1 / 48 Radio Communication Terminal and Method Technical Field

[001] The present invention relates to a user terminal and a method for radio communication of a next-generation mobile communication system. Technical Background

[002] In Universal Mobile Telecommunications System (UMTS) networks, for the purposes of higher data rates and lower latency, Long Term Evolution (LTE) was specified (Non-Patent Literature 1). In addition, for the purposes of wider bandwidths and speeds higher than LTE, LTE successor systems (also referred to as, for example, LTE Advanced (LTE-A), Future Radio Access (FRA), 4G, 5G, 5G+ (plus), New-RAT (NR) and LTE Rel. 14, 15 and subsequent releases) were also studied.

[003] In the uplink (UL) of legacy LTE systems (e.g., LTE Rel. 8 to 13), the DFT spread OFDM waveform (DFT-S-OFDM: Orthogonal Frequency Division Multiplexing with Discrete Fourier Transform Spread) is supported. The DFT spread OFDM waveform is a single-carrier waveform and therefore can prevent an increase in the Peak to Average Power Ratio (PAPR). List of Citations Non-Patented Literature Non-Patent Literature 1: 3GPP TS 36.300 V8.12.0 Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2 (Release 8), April 2010. Summary of the Invention Technical Problem Petition 870240071662, dated 08 / 21 / 2024, page 13 / 63 2 / 48

[004] It was studied to support a DFT-spreading OFDM waveform that is a single carrier waveform and, in addition, a Prefix Cyclic OfDM (CP-OFDM: Prefix Cyclic Orthogonal Frequency Division Multiplexing) waveform in uplink (UL) of future radiocommunication systems (e.g., LTE 5G and NR). Furthermore, a DFT-spreading OFDM waveform can be paraphrased as a UL signal to which DFT spreading (also referred to as DFT precoding) is applied (with DFT spreading) and a CP-OFDM waveform can be paraphrased as a UL signal to which DFT spreading is not applied (without DFT spreading).

[005] Thus, there is a risk that when the transmission of a UL signal (e.g., UL data and / or uplink control information) on a UL data channel (a shared UL channel, such as a PUSCH: Physical Uplink Shared Channel) is controlled in the UL in future radiocommunication systems that support a CP-OFDM waveform, the UL signal may not be transmitted properly. When, for example, intermodulation distortion occurs or a frequency diversity effect cannot be achieved, there is a risk of communication quality deterioration.

[006] The present invention was developed taking this point into account, and one of the objectives of the present invention is to provide a user terminal and a radiocommunication method that adequately transmits a UL signal having a multicarrier waveform. Solution to the Problem

[007] One aspect of a user terminal according to the present invention includes: a transmission section that transmits an uplink signal using a shared uplink channel, the signal of Petition 870240071662, dated 08 / 21 / 2024, page 14 / 63 3 / 48 uplink having a multicarrier waveform over contiguous frequency resources; and a control section that controls the frequency hopping of the uplink signal. Advantageous Effects of the Invention

[008] According to the present invention, it is possible to adequately transmit a UL signal having a multicarrier waveform. Brief Description of the Figures

[009] Figs. 1A and 1B are diagrams illustrating an example of a PUSCH transmitter for a future radio communication system.

[010] Fig. 2 is a diagram illustrating an example of intra-slot frequency hopping.

[011] Fig. 3 is a diagram illustrating an example of first time / second frequency mapping.

[012] Figs. 4A and 4B are diagrams illustrating an example of frequency hopping over a plurality of TTIs.

[013] Fig. 5 is a diagram illustrating an example of a second method of frequency feature determination based on a hop deviation.

[014] Figs. 6A and 6B are diagrams illustrating an example of a second frequency feature determination method based on a UL BWP configuration.

[015] Fig. 7 is a diagram illustrating an example of a schematic configuration of a radio communication system according to the present embodiment.

[016] Fig. 8 is a diagram illustrating an example of a general configuration of a base radio station according to the present embodiment. Petition 870240071662, dated 08 / 21 / 2024, page 15 / 63 4 / 48

[017] Fig. 9 is a diagram illustrating an example of a base radio station function configuration according to the present embodiment.

[018] Fig. 10 is a diagram illustrating an example of a general configuration of a user terminal according to the present embodiment.

[019] Fig. 11 is a diagram illustrating an example of a user terminal function configuration according to the present embodiment.

[020] Fig. 12 is a diagram illustrating an example of hardware configurations of the base radio station and the user terminal according to the present embodiment. Description of the Modalities

[021] It was studied to support a DFT-spreading OFDM waveform that is a single carrier waveform (a UL signal to which DFT spreading is applied) and, in addition, a Cyclic Prefix OFDM (CP-OFDM) waveform (a UL signal to which DFT spreading is not applied) in the UL of future radiocommunication systems.

[022] Assumes whether or not DFT spreading is applied to a PUSCH (NR-PUSCH) (which uses one of a DFT spreading OFDM waveform and a CP-OFDM) to be configured or indicated to a user terminal (User Equipment: UE) by a network (e.g., base radio station).

[023] Fig. 1 is a diagram illustrating an example of a PUSCH transmitter in the future radiocommunication system. Fig. 1A illustrates an example of the transmitter that uses a spreading OFDM waveform. Petition 870240071662, dated 08 / 21 / 2024, page 16 / 63 5 / 48 by DFT. As illustrated in Fig. 1A, a UL-encoded and modulated data sequence is fed into an M-point Discrete Fourier Transform (DFT) (or FFT: Fast Fourier Transform) and converted from a first time domain to a frequency domain. An output from the DFT is mapped onto the M subcarriers, fed into an N-point Inverse Discrete Fourier Transform (IDFT: Inverse Discrete Fourier Transform) (or IFFT: Inverse Fast Fourier Transform), and converted from the frequency domain to a second time domain.

[024] In this respect, N > M holds, and input information for an unused IDFT (or the IFFT) is set to zero. Thus, the IDFT output becomes a signal whose instantaneous power fluctuation is small and whose bandwidth depends on M. The IDFT output is subject to parallel / serial conversion (P / S) and a Guard Interval (GI) (also referred to as Cyclic Prefix (CP)) is added. Thus, the DFT spread OFDM transmitter generates a signal with single carrier characteristics and transmits the signal in one symbol.

[025] Fig. 1B illustrates an example of a transmitter using a CP-OFDM waveform. As illustrated in Fig. 1B, a coded and modulated UL data sequence and / or a Reference Signal (RS) are mapped onto subcarriers whose number equals a transmission bandwidth, and are fed into the IDFT (or the IFFT). Input information for an unused IDFT is set to zero. The IDFT output is subject to P / S conversion and a GI is fed into the output. Thus, the CP-OFDM transmitter uses a multicarrier and, consequently, can perform frequency division multiplexing on the RS and the UL data sequence.

[026] Furthermore, it is assumed that future radiocommunication systems will support the allocation of one or more resource units. Petition 870240071662, dated 08 / 21 / 2024, p. 17 / 63 6 / 48 contiguous (e.g., Resource Blocks (RBs)) (contiguous RB allocation or contiguous frequency resource allocation) and / or frequency hopping application for PUSCH transmission to which the DFT spreading OFDM waveform is applied. For example, the user terminal allocates a UL signal (e.g., PUSCH signal) to one or more contiguous RBs, applies (or does not apply) frequency hopping to the UL signal, and transmits the UL signal.

[027] When frequency hopping is applied, it is assumed that a UL signal is arranged in a different frequency domain in a given time unit (e.g., a slot or a minislot) of the UL transmission. When, for example, a slot includes 14 symbols, as illustrated in Fig. 2, the UL signal is allocated to different frequency domains in part of the symbols (e.g., seven symbols from the first half) and other symbols (e.g., seven symbols from the second half).

[028] It was studied to support allocation of contiguous RBs that is accompanied by frequency hopping or not accompanied by frequency hopping for NR-PUSCH transmission based on DFT spread spectrum. In addition, it was studied to support at least intra-slot frequency hopping for 14-symbol slots. Frequency hopping can achieve a frequency diversity gain and can expand coverage.

[029] On the other hand, the CP-OFDM waveform allows non-contiguous RB allocation (non-contiguous frequency resource allocation) and makes it possible to obtain frequency diversity gain by dispersing the non-contiguous RB allocation across frequency domains, and therefore a frequency hopping effect using the CP-OFDM waveform is considered questionable. However, non-contiguous RB allocation causes high Intermodulation Distortion (IMD) and therefore a power back-off needs to be very Petition 870240071662, dated 08 / 21 / 2024, page 18 / 63 7 / 48 high. As a result, non-contiguous RB allocation requires reduced transmission power, and coverage is reduced. Therefore, non-contiguous RB allocation is also considered not to be truly used for the CP-OFDM waveform. When non-contiguous RB allocation is not used, frequency diversity cannot be achieved, and therefore coverage cannot be expanded.

[030] Therefore, the inventors conceived of using a CPOFDM waveform for UL data transmission and using contiguous RB allocation and frequency hopping.

[031] The present embodiment will be described below. Hereafter, a CP-OFDM waveform will be exemplified as an example of a multicarrier waveform and a DFT scattering OFDM waveform will be exemplified as an example of a single-carrier waveform. However, the present embodiment is applicable to multicarrier waveforms that are not the CP-OFDM waveform and single-carrier waveforms that are not the DFT scattering OFDM waveform as well. Furthermore, the single-carrier waveform can be paraphrased as DFT scattering is applied, and the multicarrier waveform can be paraphrased as DFT scattering is not applied. (First Mode)

[032] The first mode supports contiguous RB allocations that are either frequency-hopping accompanied or frequency-hopping not accompanied for CP-OFDM-based NR-PUSCH transmission. That is, a UL signal from a PUSCH has a CP-OFDM waveform over contiguous frequency resources.

[033] As illustrated in Fig. 2, in the case of a 14-symbol slot, by Petition 870240071662, dated 08 / 21 / 2024, page 19 / 63 8 / 48 minus the intra-slot frequency hopping can be supported. For example, the UE transmits the PUSCH using a first frequency feature (a first band and a first frequency hopping) on ​​seven symbols of the first half in a slot using the first band and transmits the PUSCH using a second frequency feature (a second band and a second frequency hopping) different from the first frequency feature on seven symbols of the second half. The time duration (the number of symbols) in which the first frequency feature is used and the time duration (the number of symbols) in which the second frequency feature is used can be different from each other. Additionally, a Demodulation Reference Signal (DMRS) can be multiplexed (time division multiplexing) on ​​a head or other symbol in each frequency hopping.

[034] A base radio station notifies a UE of an instruction to activate or deactivate frequency hopping regardless of information indicating which of the DFT spread OFDM waveform and a CP-OFDM waveform is used for PUSCH transmission. Regardless of, for example, whether a UL transmission waveform is the DFT spread OFDM waveform or the CP-OFDM waveform, the UE receives the instruction to activate or deactivate frequency hopping via upper layer signaling (e.g., RRC signaling).

[035] Information indicating whether frequency hopping is enabled or disabled can be decided by the UE based on physical layer signaling. For example, the UE can make a decision based on a specific field value, including one or more bits included in a PDCCH (UL grant) to schedule an NR-PUSCH, it can make a decision based on a Downlink Control Information (DCI) format (a payload or a transmission mode) of the UL grant, or it can Petition 870240071662, dated 08 / 21 / 2024, page 20 / 63 9 / 48 make a decision based on a control channel configuration (a search space or a Control Resource Set (CORESET)) in which the UL grant was received. The CORESET is a frame (which is also alternatively called a box, a set, or a mass) of a resource in which DL control information is mapped, or a time resource and / or a frequency resource in which the NR-PDCCH is laid out.

[036] The positions and number of DMRSs to be multiplexed in the NRPUSCH may differ depending on whether frequency hopping is enabled or disabled.

[037] By using the CP-OFDM waveform and contiguous RB allocation for PUSCH transmission, UE can increase IMD and prevent coverage reduction. Furthermore, by using frequency hopping for NRPUSCH transmission based on CP-OFDM, it is possible to obtain frequency diversity gain and expand coverage. (Second Modality)

[038] According to the second embodiment, in a case where intra-TTI frequency hopping is used for PUSCH transmission, non-frequency first / time second mapping is applied as a data mapping order for both a DFT spread OFDM waveform and a CP-OFDM waveform. Furthermore, frequency first / time second mapping refers to performing mapping on time / frequency resources allocated to a PUSCH in a frequency direction first and, secondly, in a time direction.

[039] Legacy LTE systems (e.g., LTE Rel. 13 and earlier releases) apply Code Block Segmentation by dividing a Transport Block (TB), which is a DL data scaling unit, into one or more Code Blocks (CBs), and independently encoding each. Petition 870240071662, dated 08 / 21 / 2024, page 21 / 63 10 / 48 CB. One encoded bit of each CB is coupled (e.g., coupled as a Code Word (CW)), modulated, and mapped onto an available radio resource (e.g., a Resource Element (RE)) first in the frequency direction and second in the time direction (frequency first / time second) in PDSCH. In LTE PUSCH using the DFT spread OFDM waveform, the encoded bit undergoes the same processing as in PDSCH and is then interleaved in two dimensions, time and frequency, before being mapped onto a radio resource. Thus, the encoded bit is mapped first in the time direction and second in the frequency direction (time first / frequency second) in PUSCH.

[040] It is important that each Code Block (CB) that makes up a Transport Block (TB) be spread over one or more frequency hoppings to obtain an appropriate frequency diversity gain by intra-TTI frequency hopping in NR PUSCH as well.

[041] Therefore, in NR-PUSCH, for example, a data mapping order can be time first / frequency second. According to the time first / frequency second mapping, mapping is performed on the time / frequency resources allocated to PUSCH in the time first direction and in the frequency second direction.

[042] If non-contiguous RB allocation is used for the CP-OFDM waveform, it is possible to obtain frequency diversity gain by dispersing and disposing the NR-PUSCH across different RBs and performing frequency-first / time-second mapping. However, as described above, non-contiguous RB allocation causes a high IMD and requires reducing the transmission power. Therefore, in a case of not only DFT-spreading OFDM waveform but also CP-OFDM waveform, it is possible to prevent the high IMD by disposing the NR-PDSCH on a local RB using allocation of Petition 870240071662, dated 08 / 21 / 2024, page 22 / 63 11 / 48 Contiguous RB and obtain frequency diversity gain using frequency hopping and time-first / frequency-second mapping.

[043] Furthermore, the intra-TTI frequency hopping can be, for example, intra-slot frequency hopping or it can be intra-minislot frequency hopping.

[044] As illustrated in Fig. 3, the UE maps the first CB in the time direction to a first frequency time of resources allocated to the PUSCH. Subsequently, the UE maps the next CB in the time direction to the next frequency unit. The frequency unit can be one or more REs or it can be one or more RBs. According to this operation, each CB is mapped onto TTIs (slots in this example) and frequency hopping is applied.

[045] Furthermore, when UL transmission is performed using a plurality of layers, a mapping order can be time-frequency layer or it can be time-frequency layer. That is, UE can perform mapping at least preferentially in the time direction over the frequency direction.

[046] According to the second modality above, the UE can give a diversity of frequencies to all CBs by dispersing and organizing each CB to and in a plurality of frequencies. (Third Modality)

[047] According to the third mode, NR can support the transmission of plural TTIs. For example, an UE transmits a TB using a plurality of TTIs (slots or minislots).

[048] One of the following options can be used for plural TTI transmission.

[049] Option 1: The UE performs frequency hopping on each TTI of a plurality of TTIs. The same frequency hopping that applies to a TTI transmission is applied to a given TTI. Petition 870240071662, dated 08 / 21 / 2024, p. 23 / 63 12 / 48

[050] As illustrated, for example, in Fig. 4A, the UE can perform frequency hopping on each of six TTIs (slots in this example) to transmit a TB.

[051] Option 2: The UE performs frequency hopping over a plurality of TTIs. Frequency hopping may or may not be applied to a given TTI.

[052] As illustrated, for example, in Fig. 4B, the UE can group PUSCH transmissions of six TTIs (slots in this example) to transmit a TB in a group of three TTIs from a first half and a group of three TTIs from a second half, and perform frequency hopping between these groups. The number of groups can be three or more. The number of TTIs in each group may not be identical.

[053] In addition, UE can perform frequency hopping between TTIs.

[054] According to the third modality above, even when the TTI length is short and / or when the TB length is long, it is possible to obtain a frequency diversity gain. (Fourth Modality)

[055] According to the fourth mode, upper layer signaling (e.g., a Radio Resource Control (RRC) signal) sets up a hop pattern or hop deviation for a UE.

[056] As illustrated in Fig. 5, the hopping deviation indicates, for example, a deviation of a second frequency feature (a second band and a second frequency hop) that is a transition target frequency feature relative to a first frequency feature (a first band and a first frequency hop) that is a frequency source of a transition target frequency feature. A hopping pattern may indicate a transition target time feature and / or frequency feature. The UE Petition 870240071662, dated 08 / 21 / 2024, page 24 / 63 13 / 48 can determine the second frequency feature based on the hop pattern or hop deviation.

[057] It was studied for NR to apply UL grant-based transmission to transmit UL data based on a UL grant and, in addition, UL grant-free transmission to transmit UL data without a UL grant to achieve low latency communication.

[058] According to UL-grant-based transmission, a base radio station (which may be referred to as, for example, a Base Station (BS), a Transmit / Receive Point (TRP), an eNode B (eNB) or a gNB (NR NodeB)) transmits a downlink control channel (UL grant) to instruct the allocation of UL data (PUSCH: Physical Uplink Shared Channel) and the UE transmits UL data according to the UL grant.

[059] On the other hand, according to the UL grant-free transmission, the UE transmits UL data without receiving the UL grant to scale data.

[060] Physical layer (L1: layer 1) signaling (e.g., PDCCH (Physical Downlink Control Channel)) to enable UL concession-free transmission was also studied.

[061] Several types of UL concession-free transmission control were studied. For example, according to type 1, UL concession-free transmission does not use L1 signaling based solely on a Radio Resource Control (RRC) setting. According to type 2, UL concession-free transmission is based on both RRC setting and L1 signaling activation / deactivation.

[062] The UL grant may indicate the first frequency resource for UL grant-based transmission. The UE may determine the Petition 870240071662, dated 08 / 21 / 2024, page 25 / 63 14 / 48 first frequency resource based on UL grant and determine the second frequency resource based on a hopping pattern or hopping deviation configured by upper layer signaling.

[063] For UL type 2 grant-free transmission, the L1 signaling to enable UL grant-free transmission may indicate the first frequency resource. The UE may determine the first frequency resource based on this L1 signaling and determine the second frequency resource based on the hopping pattern or hopping deviation configured by the upper layer signaling.

[064] For UL type 1 concession-free transmission, RRC signaling may indicate the first frequency resource. The UE may determine the first frequency resource based on this RRC signaling and determine the second frequency resource based on the hopping pattern or hopping deviation configured by upper layer signaling.

[065] The hopping pattern or hopping deviation may be information related to a plurality of transition target frequency features of a frequency hopping plurality. The UE may determine a plurality of transition target frequency features (the second frequency feature and the third frequency feature) based on the hopping pattern or hopping deviation.

[066] According to the fourth modality above, the UE can control the frequency hopping of a PUSCH based on a notification of the hopping pattern or hopping deviation. (Fifth Modality)

[067] According to the fifth mode, a jump pattern or a jump deviation can be obtained from a UL Bandwidth Part (BWP, partial band) configuration. Petition 870240071662, dated 08 / 21 / 2024, page 26 / 63 15 / 48

[068] It has been studied for future radiocommunication systems (e.g., NR, 5G, or 5G+) to allocate a carrier (a Component Carrier (CC) or a system band) with a wider bandwidth (e.g., 100 to 400 MHz) than legacy LTE systems (e.g., LTE Rel. 8 to 13). There is a risk that when a user terminal uses the entire carrier all the time, power consumption becomes enormous. Therefore, it has been studied for future radiocommunication systems to semi-statically configure one or more frequency bands on the carrier for a user terminal. Each frequency band on the carrier will also be referred to as a BWP.

[069] A BWP configuration may include at least one of the following information indicating numerologies (e.g., subcarrier spacing), information indicating a frequency position (e.g., a PRB index of a center frequency, a center PRB, or a minimum frequency), information indicating a bandwidth (e.g., the number of Resource Blocks (also referred to as RBs or physical RBs (PRBs)), information of a timing resource (e.g., a slot index (minislot), a periodicity, or the number of symbols per slot (minislot)), information indicating the number of MIMO layers, and information relating to Quasi-Colocation.

[070] The UE can receive a BWP configuration using upper layer signaling (e.g., RRC signaling and broadcast information (Master Information Block (MIB) or a System Information Block (SIB)) and / or MAC signaling).

[071] A BWP for UL may be referred to as a UL BWP. Information for configuring the UL BWP may be referred to as a UL BWP configuration. Petition 870240071662, dated 08 / 21 / 2024, page 27 / 63 16 / 48

[072] When UL BWP is configured, the UE can determine the first frequency resource of the UL grant-free transmission frequency hopping transition source based on physical layer signaling or upper layer signaling and determine the second transition destination frequency resource based on the UL BWP configuration.

[073] The UL BWP configuration may include at least one of the following: the UL BWP center frequency (e.g., PRB index), the UL BWP minimum frequency (e.g., PRB index), and the UL BWP bandwidth (e.g., number of PRBs). The UE may determine the second frequency resource based on the first frequency resource, the UL BWP configuration, and a previously configured rule.

[074] As illustrated in Fig. 6A, the UE can determine the second frequency feature from the first frequency feature according to a rule that the first frequency feature and the second frequency feature are in symmetrical positions with respect to a specific frequency (e.g., the carrier center frequency) (e.g., a distance Fa1 from the center frequency to the center of the first frequency feature and a distance Fa2 from the center frequency to the center of the second frequency feature are equal, and the second frequency feature is located on the opposite side of the first frequency feature with respect to the center frequency). Furthermore, as illustrated in Fig.6B, the UE may determine the second frequency resource from the first frequency resource using the minimum frequency and bandwidth of the UL BWP according to a rule that a distance Fb1 from the minimum frequency of the UL BWP to the center of the first frequency resource, and a distance Fb2 from a maximum frequency of the UL BWP to the second frequency resource are equal. Petition 870240071662, dated 08 / 21 / 2024, page 28 / 63 17 / 48

[075] For UL-grant-based transmission, a UL grant may indicate the first frequency resource. The UE may determine the first frequency resource based on the UL grant and determine the second frequency resource based on the UL BWP configuration.

[076] For UL type 2 concession-free transmission, layer 1 (L1 or physical layer) signaling to enable UL concession-free transmission may indicate the first frequency resource. The UE may determine the first frequency resource based on this L1 signaling and determine the second frequency resource based on the UL BWP configuration.

[077] For transmission without UL type 1 concession, RRC signaling may indicate the first frequency resource. The UE may determine the first frequency resource based on this RRC signaling and determine the second frequency resource based on the UL BWP configuration.

[078] The UE can determine a plurality of transition destination frequency resources from a frequency hopping plurality based on the first frequency hopping resource in UL-granted free transmission frequency hopping, the UL BWP configuration and the previously configured rule.

[079] The UE can perform frequency hopping according to the fourth mode when UL BWP is not configured. The UE can perform frequency hopping according to the fifth mode when UL BWP is configured.

[080] According to the fifth mode above, the UE can control the frequency hopping of the PUSCH based on UL BWP information. Furthermore, it is not necessary to notify the base radio station of the hopping pattern or hopping deviation, thus suppressing an overhead of Petition 870240071662, dated 08 / 21 / 2024, page 29 / 63 18 / 48 a notification from the base radio station to the EU. (Radio Communication System)

[081] The configuration of the radio communication system according to the present embodiment will be described below. This radio communication system is applied using the radio communication method according to each of the above embodiments. Furthermore, the radio communication method according to each of the above embodiments can be applied alone or can be applied in combination.

[082] Fig. 7 is a diagram illustrating an example of a schematic configuration of the radiocommunication system according to the present embodiment. A radiocommunication system 1 may apply Carrier Aggregation (CA) and / or Dual Connectivity (DC) which aggregate a plurality of base frequency blocks (component carriers) whose unit is a system bandwidth (e.g., 20 MHz) of the LTE system. In this respect, radiocommunication system 1 may be referred to as SUPER 3G, LTE-Advanced (LTE-A), IMT-Advanced, 4G, 5G, Future Radio Access (FRA) and New-RAT (NR).

[083] The radio communication system 1 illustrated in Fig. 7 includes a base radio station 11 that forms a macro cell C1 and base radio stations 12a to 12c, which are located in macro cell C1 and form smaller cells C2 that are narrower than macro cell C1. In addition, a user terminal 20 is located in macro cell C1 and in each smaller cell C2. Different numerologies can be configured to be applied between cells. Furthermore, numerologies refer to a set of communication parameters that characterize a signal design of a given RAT and / or a RAT design.

[084] User terminal 20 can connect to both radio station Petition 870240071662, dated 08 / 21 / 2024, page 30 / 63 19 / 48 base 11 as to base 12 radio stations. It is assumed that user terminal 20 simultaneously uses macro cell C1 and small cells C2, which use different frequencies by CA or DC. Furthermore, user terminal 20 can apply CA or DC using a plurality of cells (CCs) (e.g., two or more CCs). Additionally, the user terminal can use licensed band CCs and unlicensed band CCs as a plurality of cells.

[085] In addition, user terminal 20 can perform communication using Time Division Duplexing (TDD) or Frequency Division Duplexing (FDD) in each cell. A TDD cell and an FDD cell can each be referred to as a TDD carrier (frame type 2 configuration) and an FDD carrier (first frame type 1 configuration).

[086] In addition, each cell (carrier) can be applied a subframe (also referred to as a TTI, a general TTI, a long TTI, a general subframe, a long subframe or a slot) with a relatively long time duration (e.g., one ms) or a subframe (also referred to as a short TTI, a short subframe or a slot) with a relatively short time duration or can be applied to both a long subframe and a short subframe. In addition, each cell can be applied to a subframe of two or more time durations.

[087] User terminal 20 and base station 11 can communicate using a narrow-bandwidth carrier (also referred to as a Legacy carrier) in a relatively low frequency band (e.g., 2 GHz). On the other hand, user terminal 20 and each base station 12 can use a wide-bandwidth carrier in a relatively high frequency band (e.g., 3.5 GHz, 5 GHz, or 30 to 70 GHz) or can use the same carrier as that used between user terminal 20 and base station 11. In this Petition 870240071662, dated 08 / 21 / 2024, page 31 / 63 20 / 48 sense, a frequency band configuration used by each base radio station is not limited to that.

[088] Base radio station 11 and each base radio station 12 (or the two base radio stations 12) can be configured to be connected via a wired connection (e.g., fiber optics compatible with a Common Public Radio Interface (CPRI) or an X2 interface) or via a radio connection.

[089] Base radio station 11 and each base radio station 12 are each connected to a top station device 30 and connected to a core network 40 via the top station device 30. In this respect, the top station device 30 includes, for example, an access gateway device, a Radio Network Controller (RNC) and a Mobility Management Entity (MME), but is not limited to these. Furthermore, each base radio station 12 can be connected to the top station device 30 via base radio station 11.

[090] In this sense, base radio station 11 is a base radio station that has relatively wide coverage and may be referred to as a macro base station, an aggregate node, an eNodeB (eNB), or a transmit / receive point. Furthermore, each base radio station 12 is a base radio station that has local coverage and may be referred to as a small base station, a micro base station, a pico base station, a femto base station, a domestic eNodeB (HeNB), a Remote Radio Head (RRH), or a transmit / receive point. Base radio stations 11 and 12 will be collectively referred to as base radio station 10 below when not distinguished.

[091] Each user terminal 20 is a terminal that supports multiple communication schemes, such as LTE and LTE-A, and may include not only Petition 870240071662, dated 08 / 21 / 2024, pp. 32 / 63 21 / 48 is a mobile communication terminal, but also a fixed communication terminal. Furthermore, user terminal 20 can perform device-to-device (D2D) communication with another user terminal 20.

[092] Radio communication system 1 can apply Orthogonal Frequency Division Multiple Access (OFDMA) to the Downlink (DL) and can apply Single Carrier Frequency Division Multiple Access (SC-FDMA) to the Uplink (UL) as radio access schemes. OFDMA is a multi-carrier transmission scheme that divides a frequency band into a plurality of narrow frequency bands (subcarriers) and maps data on each subcarrier to perform communication. SC-FDMA is a single-carrier transmission scheme that divides a system bandwidth into a band including one or contiguous resource blocks per terminal and causes a plurality of terminals to use respectively different bands to reduce inter-terminal interference. In this respect, uplink and downlink radio access schemes are not limited to combinations of these, and OFDMA can be used in UL.Furthermore, SC-FDMA is applicable to Side Link (SL) used for device-to-device communication.

[093] Radio communication system 1 uses a DL data channel (PDSCH: Physical Uplink Shared Channel, which is also referred to as a shared DL channel) shared by each user terminal 20, a broadcast channel (PBCH: Physical Broadcast Channel) and an L1 / L2 control channel as DL channels. At least one of user data, upper-layer control information and System Information Blocks (SIBs) are transmitted on the PDSCH. In addition, Master Information Blocks (MIBs) are transmitted on the PBCH. Petition 870240071662, dated 08 / 21 / 2024, page 33 / 63 22 / 48

[094] The L1 / L2 control channel includes a DL control channel (e.g., a Physical Downlink Control Channel (PDCCH) and / or an Enhanced Physical Downlink Control Channel (EPDCCH)), a Physical Control Format Indicator Channel (PCFICH), and a Physical Hybrid ARQ Indicator Channel (PHICH). Downlink Control Information (DCI), including PDSCH scheduling information and PUSCH, is transmitted on the PDCCH and / or EPDCCH. The number of OFDM symbols used for the PDCCH is transmitted on the PCFICH. The EPDCCH undergoes frequency division multiplexing with the PDSCH and is used to transmit DCI similar to the PDCCH. PUSCH transmission acknowledgment (A / N or HARQ-ACK) information can be transmitted in at least one of the PHICH, PDCCH, and EPDCCH systems.

[095] Radio communication system 1 uses a UL data channel (PUSCH: Physical Uplink Shared Channel, also referred to as a shared UL channel) shared by each user terminal 20, a UL control channel (PUCCH: Physical Uplink Control Channel), and a random access channel (PRACH: Physical Random Access Channel) as UL channels. User data and upper-layer control information are transmitted on the PUSCH. Uplink Control Information (UCI), including at least one of the transmission acknowledgment (A / N or HARQ-ACK) and Channel State Information (CSI) from the PDSCH, is transmitted on the PUSCH or PUCCH. A random access preamble to establish a connection with a cell may be transmitted on the PRACH. <Estação Rádio Base>

[096] Fig. 8 is a diagram illustrating an example of a general configuration of the base radio station according to the present Petition 870240071662, dated 08 / 21 / 2024, page 34 / 63 23 / 48 mode. A base radio station 10 includes pluralities of transmit / receive antennas 101, amplification sections 102 and transmit / receive sections 103, a baseband signal processing section 104, a call processing section 105 and a channel interface 106. In this respect, the base radio station 10 only needs to be configured to include one or more of each of the transmit / receive antennas 101, amplification sections 102 and transmit / receive sections 103.

[097] User data transmitted from base radio station 10 to user terminal 20 in downlink is introduced from the upper station device 30 to the baseband signal processing section 104 via channel interface 106.

[098] The baseband signal processing section 104 performs Packet Data Convergence Protocol (PDCP) layer processing, segmentation and concatenation of user data, Radio Link Control (RLC) layer transmission processing such as RLC retransmission control, Medium Access Control (MAC) retransmission control (e.g., Hybrid Automatic Repeat Request (HARQ) processing) and transmission processing such as at least one of scheduling, transmission format selection, channel coding, rate matching, encryption, Inverse Fast Fourier Transform (IFFT) processing and pre-coding processing on user data, and transfers user data to each transmit / receive section 103.In addition, the baseband signal processing section 104 performs transmission processing, such as channel coding and / or inverse fast Fourier transform on a signal. Petition 870240071662, dated 08 / 21 / 2024, pages 35 / 63 24 / 48 downlink control, too, and transfers the downlink control signal to each transmit / receive section 103.

[099] Each transmit / receive section 103 converts a pre-coded baseband signal emitted by an antenna from the baseband signal processing section 104 into a radio frequency band and transmits a radio frequency signal. The radio frequency signal subjected to frequency conversion by each transmit / receive section 103 is amplified by each amplification section 102 and is transmitted from each transmit / receive antenna 101.

[0100] The transmission / reception sections 103 may be composed of transmitters / receivers, transmission / reception circuits or transmission / reception apparatus described based on common knowledge in a technical field according to the present invention. In this respect, the transmission / reception sections 103 may be composed as an integrated transmission / reception section or may be composed of transmission sections and reception sections.

[0101] Meanwhile, each amplification section 102 amplifies a radio frequency signal received by each transmit / receive antenna 101 as a UL signal. Each transmit / receive section 103 receives the UL signal amplified by each amplification section 102. Each transmit / receive section 103 performs frequency conversion on the received signal into a baseband signal and transmits the baseband signal to the baseband signal processing section 104.

[0102] The baseband signal processing section 104 performs Fast Fourier Transform (FFT) processing, Inverse Discrete Fourier Transform (IDFT) processing, error correction decoding, control reception processing. Petition 870240071662, dated 08 / 21 / 2024, pp. 36 / 63 25 / 48 retransmission of MAC and reception processing of an RLC layer and a PDCP layer on UL data included in the incoming UL signal, and transfers the UL data to the higher station device 30 via channel interface 106. The call processing section 105 performs at least one of the call processing tasks such as configuring and releasing a communication channel, managing the base radio station state 10 and managing radio resources.

[0103] The channel 106 interface transmits and receives signals to and from the higher station apparatus 30 through a given interface. In addition, the channel 106 interface can transmit and receive signals (backhaul signaling) to and from the neighboring base radio station 10 through an inter-base station interface (e.g., fiber optics compliant with the Common Public Radio Interface (CPRI) or the X2 interface).

[0104] In addition, each transmit / receive section 103 can receive an uplink signal with a multicarrier waveform (e.g., CP-OFDM) over contiguous frequency resources (e.g., contiguous RBs) using a shared uplink channel (PUSCH). In addition, each transmit / receive section 103 can receive the uplink signal having a single carrier waveform (e.g., DFT spread OFDM) over contiguous frequency resources (e.g., contiguous RBs) using the shared uplink channel.

[0105] In addition, each transmit / receive section 103 can independently transmit a notification indicating whether frequency hopping is enabled or disabled independently of information indicating which single-carrier waveform and multi-carrier waveform is used for the uplink signal. Furthermore, each transmit / receive section 103 can transmit a configuration of Petition 870240071662, dated 08 / 21 / 2024, pp. 37 / 63 26 / 48 upper layer signaling (e.g., a hop pattern or a hop deviation) and / or an uplink portion band (e.g., UL BWP).

[0106] Fig. 9 is a diagram illustrating an example of a base radio station function configuration according to the present embodiment. Furthermore, Fig. 9 essentially illustrates function blocks of characteristic portions according to the present embodiment and assumes that the base radio station 10 also includes other function blocks that are necessary for radiocommunication. As illustrated in Fig. 9, the baseband signal processing section 104 includes a control section 301, a transmission signal generation section 302, a mapping section 303, a received signal processing section 304, and a measurement section 305.

[0107] Control section 301 controls the entire base radio station 10. Control section 301 controls at least one of, for example, DL signal generation from the transmission signal generation section 302, DL signal mapping from the mapping section 303, UL signal reception processing (e.g., demodulation) from the received signal processing section 304, and measurements from the measurement section 305.

[0108] More specifically, control section 301 scales user terminal 20. For example, control section 301 can perform scaling and / or retransmission control on DL data and / or UL data channels based on UCI (e.g., CSI) from user terminal 20. Additionally, control section 301 can control a notification of the above PUSCH waveform information and / or a notification indicating whether or not frequency hopping is applied to the UL signal.

[0109] Control section 301 may consist of a controller, a Petition 870240071662, dated 08 / 21 / 2024, pp. 38 / 63 27 / 48 control circuit or a control apparatus described based on common knowledge in the technical field according to the present invention.

[0110] The transmission signal generation section 302 can generate the DL signal (including a DL data signal, a DL control signal and a DL reference signal) based on an instruction from the control section 301 and transmits the DL signal to the mapping section 303.

[0111] The transmission signal generation section 302 may consist of a signal generator, a signal generating circuit or a signal generating apparatus described based on common knowledge in the technical field according to the present invention.

[0112] The mapping section 303 maps the DL signal generated by the transmission signal generation section 302 to a given radio resource based on the instruction from the control section 301 and transmits the DL signal to each transmission / reception section 103. The mapping section 303 may consist of a mapper, a mapping circuit, or a mapping apparatus described based on common knowledge in the technical field according to the present invention.

[0113] The received signal processing section 304 performs reception processing (e.g., demapping, demodulation, and decoding) on ​​UL signals (including, for example, a UL data signal, a UL control signal, and a UL reference signal) transmitted from a user terminal 20. More specifically, the received signal processing section 304 can output the received signal and / or the signal after reception processing to the measurement section 305. In addition, the received signal processing section 304 performs UCI reception processing based on a UL control channel configuration instructed by the control section 301. Petition 870240071662, dated 08 / 21 / 2024, pp. 39 / 63 28 / 48

[0114] Measurement section 305 performs the measurement related to the received signal. Measurement section 305 may consist of a measuring instrument, a measuring circuit, or a measuring apparatus described based on common knowledge in the technical field according to the present invention.

[0115] Measurement section 305 can measure the quality of the UL channel based, for example, on the received power (e.g., Received Reference Signal Power (RSRP)) and / or the received quality (e.g., Received Reference Signal Quality (RSRQ)) of a UL reference signal. Measurement section 305 can output a measurement result to control section 301. <Terminal de Usuário>

[0116] Fig. 10 is a diagram illustrating an example of a general configuration of a user terminal according to the present embodiment. The user terminal 20 includes pluralities of transmit / receive antennas 201 for MIMO transmission, amplification sections 202 and transmit / receive sections 203, a baseband signal processing section 204 and an application section 205.

[0117] The respective amplification sections 202 amplify radio frequency signals received in a plurality of transmit / receive antennas 201. Each transmit / receive section 203 receives a DL signal amplified by each amplification section 202. Each transmit / receive section 203 performs frequency conversion on the received signal into a baseband signal and transmits the baseband signal to the baseband signal processing section 204.

[0118] The baseband signal processing section 204 performs at least one of the following: FFT processing, decoding Petition 870240071662, dated 08 / 21 / 2024, pp. 40 / 63 29 / 48 Error correction and reception processing of retransmission control on the input baseband signal. Baseband signal processing section 204 transfers DL data to application section 205. Application section 205 performs processing related to layers higher than a physical layer and a MAC layer.

[0119] On the other hand, application section 205 inserts UL data into baseband signal processing section 204. Baseband signal processing section 204 performs at least one of the following retransmission control (e.g., HARQ processing), channel coding, rate matching, punching, Discrete Fourier Transform (DFT) processing, and IFFT processing on the UL data and transfers the UL data to each transmit / receive section 203. UCIs (e.g., at least one of the A / N of a DL signal, Channel State Information (CSI), and a Scheduling Request (SR)) are also subject to at least one channel coding, rate matching, punching, DFT processing, and IFFT processing and are transferred to each transmit / receive section 203.

[0120] Each transmit / receive section 203 converts the baseband signal emitted from the baseband signal processing section 204 into a radio frequency band and transmits a radio frequency signal. The radio frequency signal subjected to frequency conversion by each transmit / receive section 203 is amplified by each amplification section 202 and is transmitted from each transmit / receive antenna 201.

[0121] In addition, each transmit / receive section 203 can transmit an uplink signal with a multicarrier waveform (e.g., CP-OFDM) over contiguous frequency resources (e.g., contiguous RBs) using a shared channel of Petition 870240071662, dated 08 / 21 / 2024, pp. 41 / 63 30 / 48 uplink (PUSCH). In addition, each transmit / receive section 203 can transmit an uplink signal having a single carrier waveform (e.g., DFT spread OFDM) over contiguous frequency resources (e.g., contiguous RBs) using the shared uplink channel.

[0122] In addition, each transmit / receive section 203 can receive notification indicating whether frequency hopping is enabled or disabled independently of information indicating which single-carrier and multi-carrier waveform is used for the uplink signal. In addition, each transmit / receive section 203 can receive an upper-layer signaling configuration (e.g., hopping pattern or hopping deviation) and / or the uplink portion band (e.g., UL BWP).

[0123] The transmission / reception sections 203 may be composed of transmitters / receivers, transmission / reception circuits or transmission / reception apparatus described based on common knowledge in the technical field according to the present invention. Furthermore, the transmission / reception sections 203 may be composed as an integrated transmission / reception section or may be composed of transmission sections and reception sections.

[0124] Fig. 11 is a diagram illustrating an example of a user terminal function configuration according to the present embodiment. Furthermore, Fig. 11 essentially illustrates function blocks of characteristic portions according to the present embodiment and assumes that the user terminal 20 also includes other function blocks that are necessary for radiocommunication. As illustrated in Fig. 11, the baseband signal processing section 204 of the user terminal 20 includes Petition 870240071662, dated 08 / 21 / 2024, pp. 42 / 63 31 / 48 a control section 401, a transmission signal generation section 402, a mapping section 403, a received signal processing section 404 and a measurement section 405.

[0125] Control section 401 controls the entire user terminal 20. Control section 401 controls at least one of, for example, UL signal generation from the transmission signal generation section 402, UL signal mapping from the mapping section 403, DL signal reception processing from the received signal processing section 404, and measurements from the measurement section 405.

[0126] In addition, control section 401 can control the frequency hopping of an uplink signal.

[0127] In addition, the 401 control section can control frequency hopping based on a notification indicating whether frequency hopping is enabled or disabled.

[0128] In addition, control section 401 can map (e.g., time-first / frequency-second mapping) the uplink signal on a shared uplink channel feature in the time direction prior to the frequency direction.

[0129] In addition, control section 401 can control frequency hopping over a plurality of transmission time slots (e.g., TTIs, slots, or minislots).

[0130] In addition, control section 401 can determine a frequency hopping transition destination frequency resource based on the upper layer signaling configuration or the uplink portion band.

[0131] Control section 401 may consist of a controller, a control circuit, or a control apparatus described based on Petition 870240071662, dated 08 / 21 / 2024, pages 43 / 63 32 / 48 common knowledge in the technical field according to the present invention.

[0132] The transmission signal generation section 402 generates (e.g., encodes, rate matches, punches, and modulates) the UL signal (including a UL data signal, a UL control signal, a UL reference signal, and UCI), based on an instruction from the control section 401, and transmits the UL signal to the mapping section 403. The transmission signal generation section 402 may consist of a signal generator, a signal generator circuit, or a signal generator apparatus described based on common knowledge in the technical field according to the present invention.

[0133] The mapping section 403 maps the UL signal generated by the transmission signal generation section 402 onto a radio resource based on the instruction from the control section 401 and transmits the UL signal to each transmission / reception section 203. The mapping section 403 may consist of a mapper, a mapping circuit, or a mapping apparatus described based on common knowledge in the technical field according to the present invention.

[0134] Received signal processing section 404 performs receive processing (e.g., demapping, demodulation, and decoding) on ​​DL signals (a DL data signal, scaling information, a DL control signal, and a DL reference signal). Received signal processing section 404 transmits the information received from base radio station 10 to control section 401. Received signal processing section 404 transmits, for example, broadcast information, system information, upper-layer control information such as RRC signaling, and physical layer control information (L1 / L2 control information) to control section 401. Petition 870240071662, dated 08 / 21 / 2024, pp. 44 / 63 33 / 48

[0135] The received signal processing section 404 may consist of a signal processor, a signal processing circuit, or a signal processing apparatus described based on common knowledge in the technical field according to the present invention. Furthermore, the received signal processing section 404 may comprise the receiving section according to the present invention.

[0136] Measurement section 405 measures a channel state based on the reference signal (e.g., CSI-RS) from base station 10 and sends a measurement result to control section 401. In addition, the channel state can be measured by DC.

[0137] The measuring section 405 may consist of a signal processor, a signal processing circuit or a signal processing apparatus and a measuring instrument, a measuring circuit or a measuring apparatus described based on common knowledge in the technical field according to the present invention. <Configuração de hardware >

[0138] Furthermore, the block diagrams used to describe the above embodiments illustrate blocks in units of function. These blocks of function (components) are realized by an optional combination of hardware and / or software. Moreover, a method for realizing each block of function is not particularly limited. That is, each block of function can be realized using a physically or logically paired device or it can be realized by using a plurality of such devices formed by connecting two or more physically and / or logically separate devices, directly and / or indirectly (by the use, for example, of a cable connection and / or radio connection). Petition 870240071662, dated 08 / 21 / 2024, pages 45 / 63 34 / 48

[0139] For example, the base radio station and the user terminal according to the present embodiment can function as computers that perform the processing of the radio communication method according to the present invention. Fig. 12 is a diagram illustrating an example of the hardware configurations of the base radio station and the user terminal according to the present embodiment. The base radio station 10 above and the user terminal 20 can each be physically configured as a computer apparatus that includes a processor 1001, a memory 1002, a storage 1003, a communication apparatus 1004, an input apparatus 1005, an output apparatus 1006 and a bus 1007.

[0140] In this sense, the word apparatus in the following description can be read as a circuit, a device, or a unit. The hardware configurations of base radio station 10 and user terminal 20 can be configured to include one or a plurality of apparatus illustrated in Fig. 12, or they can be configured without including some of the apparatus.

[0141] For example, Fig. 12 illustrates the single 1001 processor. However, there may be a plurality of processors. Furthermore, processing may be performed by one processor or by one or more processors simultaneously, successively, or using another method. Moreover, the 1001 processor may be implemented using one or more chips.

[0142] Each function of the base radio station 10 and the user terminal 20 is performed, for example, by causing a hardware such as the processor 1001 and the memory 1002 to read a given software (program) and, in this way, causing the processor 1001 to perform an operation and communication control via communication device 1004 and reading and / or writing of data in memory 1002 and storage 1003. Petition 870240071662, dated 08 / 21 / 2024, pp. 46 / 63 35 / 48

[0143] Processor 1001 causes, for example, an operating system to operate in order to control the entire computer. Processor 1001 may consist of a Central Processing Unit (CPU), including an interface for a peripheral device, a control device, an operating device, and a register. For example, the baseband signal processing section 104 (204) and the call processing section 105 above may be performed by processor 1001.

[0144] In addition, processor 1001 reads programs (program codes), a software module, or data from storage 1003 and / or communication devices 1004 into memory 1002 and performs various types of processing according to these programs, the software module, or the data. As for programs, programs are used that cause the computer to perform at least part of the operations described in the modalities above. For example, the control section 401 of user terminal 20 can be performed by a control program stored in memory 1002 and operating on processor 1001, and other functional blocks can also be performed in the same way.

[0145] Memory 1002 is a computer-readable recording medium and may consist of at least one of, for example, a Read-Only Memory (ROM), a Programmable Erasable ROM (EPROM), an Electrically Erasable EPROM (EEPROM), a Random Access Memory (RAM), and other suitable storage media. Memory 1002 may be referred to as a register, a cache, or main memory (main storage device). Memory 1002 may store programs (program codes) and a software module that may be Petition 870240071662, dated 08 / 21 / 2024, pp. 47 / 63 36 / 48 executed to perform the radiocommunication method according to the present modality.

[0146] Storage 1003 is a computer-readable recording medium and may consist of at least one of, for example, a floppy disk, a floppy disk (trademark), a magneto-optical disk (for example, a compact disc (CD-ROM), a digital versatile disk and a Blu-ray disc (trademark)), a removable disk, a hard disk drive, a smartcard, a flash memory device (for example, a card, a stick or a key drive), a magnetic stripe, a database, a server and other suitable storage media. Storage 1003 may be referred to as an auxiliary storage device.

[0147] The communication device 1004 is hardware (transmission / reception device) that performs communication between computers via a wired network and / or radio network and is also referred to as, for example, a network device, a network controller, a network card, and a communication module. The communication device 1004 can be configured to include a high-frequency switch, a duplexer, a filter, and a frequency synthesizer to perform, for example, Frequency Division Duplexing (FDD) and / or Time Division Duplexing (TDD). For example, the transmission / reception antennas 101 (201), amplification sections 102 (202), transmission / reception sections 103 (203), and channel interface 106 above can be implemented by the communication device 1004.

[0148] Input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, or a sensor) that accepts input from the outside. The device of Petition 870240071662, dated 08 / 21 / 2024, pp. 48 / 63 37 / 48 output 1006 is an output device (e.g., a display, a speaker, or a Light Emitting Diode (LED) lamp) that sends an output to the outside. Furthermore, input device 1005 and output device 1006 may be an integrated component (e.g., a touch panel).

[0149] Furthermore, each device, such as processor 1001 and memory 1002, is connected by bus 1007 which communicates information. Bus 1007 can be composed using a single bus or it can be composed using buses that are different between devices.

[0150] In addition, base radio station 10 and user terminal 20 can be configured to include hardware such as a microprocessor, a Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), a Programmable Logic Device (PLD), and a Field Programmable Gate Array (FPGA). The hardware can be used to perform part or all of each function block. For example, processor 1001 can be implemented using at least one of these hardware types. (Modified Example)

[0151] In addition, each term described in this description and / or each term necessary to understand this description may be replaced by terms with identical or similar meanings. For example, a channel and / or a symbol may be signals (signaling). In addition, a signal may be a message. A reference signal may also be abbreviated as an RS (Reference Signal) or may also be referred to as a pilot or a pilot signal, depending on the standards to be applied. In addition, a Component Carrier (CC) may be referred to as a cell, a frequency carrier, and a frequency carrier.

[0152] In addition, a radio schedule may include one or a plurality of periods (frames) in a time domain. Each or a Petition 870240071662, dated 08 / 21 / 2024, pp. 49 / 63 38 / 48 plurality of periods (frames) that make up a radio frame can be referred to as a subframe. Furthermore, the subframe can include one or a plurality of slots in the time domain. The subframe can be a fixed time duration (e.g., one ms) that is not dependent on numerology.

[0153] In addition, the slot may include one or a plurality of symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols or Single Carrier Frequency Division Multiple Access (SCFDMA) symbols) in the time domain. In addition, the slot may be a unit of time based on numerologies. In addition, the slot may include a plurality of minislots. Each minislot may include one or a plurality of symbols in the time domain. In addition, a minislot may be referred to as a subslot.

[0154] The radio frame, subframe, slot, minislot, and symbol each indicate a unit of time for signal transmission. Other corresponding names may be used for the radio frame, subframe, slot, minislot, and symbol. For example, a subframe may be referred to as a Transmission Time Interval (TTI), a plurality of contiguous subframes may be referred to as TTIs, or a slot or minislot may be referred to as a TTI. That is, the subframe and / or TTI may be a subframe (one ms) according to legacy LTE, may be a period (e.g., 1 to 13 symbols) shorter than one ms, or may be a period longer than one ms. Furthermore, a unit indicating the TTI may be referred to as a slot or minislot instead of the subframe.

[0155] In this sense, TTI refers, for example, to a minimum scheduling time unit for radiocommunication. For example, in the LTE system, the base radio station performs the scheduling for allocation. Petition 870240071662, dated 08 / 21 / 2024, pages 50 / 63 39 / 48 radio resources (a frequency bandwidth and transmission power that can be used by each user terminal) in TTI units for each user terminal. In this sense, a definition of TTI is not limited to that.

[0156] The TTI can be a unit of transmission time of a channel-encoded data packet (transport block), code block and / or codeword, or it can be a unit of link scheduling and / or adaptation processing. Furthermore, when the TTI is given, a time interval (e.g., the number of symbols) in which a transport block, a code block and / or a codeword are actually mapped may be less than the TTI.

[0157] Furthermore, when a slot or a minislot is referred to as a TTI, one or more TTIs (i.e., one or more slots or one or more minislots) may be a minimum scheduling time unit. Additionally, the number of slots (the number of minislots) to compose a minimum scheduling time unit may be controlled.

[0158] A TTI with a duration of one ms may be referred to as a general TTI (TTIs according to LTE Rel. 8 to 12), a normal TTI, a long TTI, a general subframe, a normal subframe, or a long subframe. A TTI shorter than the general TTI may be referred to as a reduced TTI, a short TTI, a partial or fractional TTI, a reduced subframe, a short subframe, a minislot, or a subslot.

[0159] Furthermore, the long TTI (e.g., the overall TTI or the subframe) can be read as a TTI with a time duration exceeding one ms, and the short TTI (e.g., the reduced TTI) can be read as a TTI with a TTI length less than the length of the long TTI and equal to or greater than 1 ms. Petition 870240071662, dated 08 / 21 / 2024, pp. 51 / 63 40 / 48

[0160] Resource blocks (RBs) are units of resource allocation in the time domain and frequency domain, and may include one or a plurality of contiguous subcarriers in the frequency domain. In addition, an RB may include one or a plurality of symbols in the time domain or may have the length of a slot, a minislot, a subframe, or a TTI. A TTI or a subframe may each be composed of one or a plurality of resource blocks. In this respect, one or a plurality of RBs may be referred to as a Physical Resource Block (PRB), a Subcarrier Group (SCG), a Resource Element Group (REG), a PRB pair, or an RB pair.

[0161] In addition, the feature block may be composed of one or a plurality of Feature Elements (REs). For example, an RE may be a radio feature domain of a subcarrier and a symbol.

[0162] In this sense, the radio frame, subframe, slot, minislot and symbol structures above are only exemplary structures. For example, configurations such as the number of subframes included in a radio frame, the number of slots included per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of subcarriers included in an RB, the number of symbols in a TTI, a symbol length and a cyclic prefix (CP) length can be changed in various ways.

[0163] In addition, the information and parameters described in this description may be expressed using absolute values, may be expressed using relative values ​​with respect to given values, or may be expressed using other corresponding information. For example, a radio feature may be instructed by a given index. Petition 870240071662, dated 08 / 21 / 2024, pages 52 / 63 41 / 48

[0164] The names used for parameters in this description are by no means restrictive names. For example, several channels (the Physical Uplink Control Channel (PUCCH) and the Physical Downlink Control Channel (PDCCH)) and information elements can be identified based on several suitable names. Therefore, several names assigned to these various channels and information elements are by no means restrictive names.

[0165] The information and signals described in this description may be expressed using one of several different techniques. For example, the data, instructions, commands, information, signals, bits, symbols, and chips mentioned throughout the above description may be expressed as voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or optional combinations thereof.

[0166] Furthermore, information and signals can be transmitted from an upper layer to a lower layer and / or from a lower layer to an upper layer. Information and signals can be inserted or transmitted through a plurality of network nodes.

[0167] Input and output information and signals can be stored in a specific location (e.g., memory) or managed using a management table. Input and output information and signals can be overwritten, updated, or additionally written. Output information and signals can be deleted. Input information and signals can be transmitted to other devices.

[0168] The notification of information is not limited to the aspects / modalities described in this description and may be performed using other methods. For example, the information may be Petition 870240071662, dated 08 / 21 / 2024, pages 53 / 63 42 / 48 notified through physical layer signaling (e.g., Downlink Control Information (DCI) and Uplink Control Information (UCI)), upper layer signaling (e.g., Radio Resource Control (RRC) signaling), broadcast information (Master Information Blocks (MIBs) and System Information Blocks (SIBs)), and Medium Access Control (MAC) signaling), and other signals or combinations thereof.

[0169] Furthermore, physical layer signaling can be referred to as Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signals), L1 control information (L1 control signal). Additionally, RRC signaling can be referred to as an RRC message and can be, for example, an RRCConnectionSetup message or an RRCConnectionReconfiguration message. Furthermore, MAC signaling can be notified by the use of, for example, a MAC Control Element (MAC CE).

[0170] Furthermore, notification of given information (for example, notification of being X) can be done not only explicitly, but also implicitly (for example, by not notifying such given information or by notifying other information).

[0171] The decision can be made based on a value (0 or 1) expressed by a bit, it can be made based on a boolean expressed through true or false, or it can be made by comparing numerical values ​​(for example, comparison with a given value).

[0172] Regardless of whether the software is called software, firmware, middleware, microcode, or a hardware description language, or by other names, software should be broadly understood to mean a command, a set of Petition 870240071662, dated 08 / 21 / 2024, pages 54 / 63 43 / 48 commands, a code, a code segment, a program code, a program, a subprogram, a software module, an application, a software application, a software package, a routine, a subroutine, an object, an executable file, an execution queue, a procedure, or a function.

[0173] In addition, software, commands, and information can be transmitted and received through transmission media. When, for example, software is transmitted from websites, servers, or other remote sources using wired techniques (e.g., coaxial cables, fiber optic cables, twisted pairs, and Digital Subscriber Lines (DSL)) and / or radio techniques (e.g., infrared and microwaves), these wired and / or radio techniques are included in a definition of transmission media.

[0174] The terms system and network used in this description are used interchangeably.

[0175] In this description, the terms Base Station (BS), base radio station, eNB, gNB, cell, sector, cell group, carrier and component carrier may be used interchangeably. The base station is also referred to by a term such as a fixed station, a NodeB, an eNodeB (eNB), an access point, a transmit point, a receive point, a femto cell or a small cell in some cases.

[0176] The base station can accommodate one or a plurality of (e.g., three) cells (also referred to as sectors). When the base station accommodates a plurality of cells, an entire coverage area of ​​the base station can be partitioned into a plurality of smaller areas. Each smaller area can provide communication service through a base station subsystem (e.g., small indoor base station (RRH: Petition 870240071662, dated 08 / 21 / 2024, pages 55 / 63 44 / 48 Remote Radio Head). The term "cell" or sector indicates a part or all of the coverage area of ​​the base station and / or the base station subsystem that provides communication services within that coverage.

[0177] In this description, the terms Mobile Station (MS), user terminal, User Equipment (UE) and terminal may be used interchangeably. The base station is also referred to by a term such as a fixed station, a NodeB, an eNodeB (eNB), an access point, a transmit point, a receive point, a femto cell or a small cell in some cases.

[0178] A mobile station is also referred to by a person skilled in the art as a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term in some cases.

[0179] Furthermore, the base radio station in this description can be read as the user terminal. For example, each aspect / embodiment of the present invention can be applied to a configuration where communication between the base radio station and the user terminal is replaced by communication between a plurality of user terminals (D2D: Device to Device). In this case, user terminal 20 can be configured to include the functions of the base radio station 10 above. Additionally, words like uplink and / or downlink can be read as lateral. For example, the uplink channel can be read as a lateral channel. Petition 870240071662, dated 08 / 21 / 2024, pages 56 / 63 45 / 48

[0180] Similarly, the user terminal in this descriptive report can be read as the base radio station. In this case, base radio station 10 can be configured to include the functions of user terminal 20 above.

[0181] In this description, the operations performed by the base station are performed by a superior node of this base station, depending on the case. Obviously, in a network including one or a plurality of network nodes including base stations, various operations performed to communicate with a terminal may be performed by base stations or one or more network nodes (which should be, for example, Mobility Management Entities (MMEs) or Server Gateways (S-GWs), however they are not limited to such) in addition to the base stations or a combination thereof.

[0182] Each aspect / modality described in this description may be used alone, may be used in combination, or may be switched and used when performed. Furthermore, the order of processing procedures, sequences, and flowchart according to each aspect / modality described in this descriptive report may be rearranged unless contradictions arise. For example, the method described in this description presents several step elements in an exemplary order and is not limited to the specific order presented.

[0183] Each aspect / modality described in this descriptive report can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, the 4th generation mobile communication system (4G), the 5th generation mobile communication system (5G), Future Radio Access (FRA), New Radio Access Technology (New-RAT), New Radio (NR), New Radio Access (NX), Future Generation Radio Access (FX), Petition 870240071662, dated 08 / 21 / 2024, pages 57 / 63 46 / 48 Global System for Mobile Communications (GSM) (registered trademark), CDMA 2000, 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), systems using other suitable radiocommunication methods and / or next-generation systems that are expanded upon these systems.

[0184] The phrase "based on" used in this descriptive report does not mean "based solely on," unless otherwise indicated. That is, the phrase "based on" means both "based solely on" and "based at least on."

[0185] Each reference to elements using names such as first and second used in this descriptive report generally does not limit the quantity or order of those elements. These names may be used in this descriptive report as a convenient method of distinguishing between two or more elements. Therefore, the reference to first and second elements does not mean that only two elements may be employed or that the first element must precede the second element in any way.

[0186] The term decide (determine) used in this descriptive report includes several operations in some cases. For example, decide (determine) can be considered as deciding (determine) to calculate, compute, process, derive, investigate, search (e.g., search in a table, a database, or other data structure), and ascertain. Furthermore, decide (determine) can be considered as deciding (determine) to receive (e.g., receive information), transmit (e.g., transmit information), input, output, and access (e.g., access data in memory). Additionally, decide (determine) can be considered as deciding (determine) to resolve, select, choose, establish, and compare. Petition 870240071662, dated 08 / 21 / 2024, pages 58 / 63 47 / 48 That is, deciding (determining) can be considered as deciding (determining) some operation.

[0187] The words connected and coupled used in this descriptive report or any modification of these words may mean any direct or indirect connection or coupling between two or more elements, and may include that one or more intermediate elements exist between the two connected or coupled elements. Elements may be coupled or connected physically, logically, or through a combination of physical and logical connections. For example, connection may be read as access.

[0188] It is understood that, when connected in this descriptive report, the two elements are connected or coupled to each other through the use of one or more electrical wires, cables and / or printed electrical connection and through the use of electromagnetic energy with wavelengths in radio frequency domains, microwave domains and light domains (both visible and invisible) in some non-restrictive and incomprehensible examples.

[0189] A sentence in which A and B are different in this description can mean that A and B are different from each other. Words like separate and coupled can also be interpreted similarly.

[0190] When the words include and comprise and modifications of these words are used in this descriptive report or in the claims, these words are intended to be comprehensively similar to the word have. Furthermore, the word or used in this descriptive report or in the claims is not intended to be an exclusive or.

[0191] The present invention has been described in detail above. However, it is clear to a person skilled in the art that the present invention is not limited to the embodiments described in this descriptive report. The present invention may be Petition 870240071662, dated 08 / 21 / 2024, pages 59 / 63 48 / 48 realized as modified and altered aspects without departing from the essence and scope of the present invention defined based on the recitation of the claims. Thus, the disclosure of this descriptive report is intended to be an exemplary explanation and has no restrictive significance for the present invention. Petition 870240071662, dated 08 / 21 / 2024, pp. 60 / 63

Claims

1 / 2 CLAIMS 1. Terminal (20) characterized in that it comprises: a receiving section (203) that receives a radio resource control signal, RRC, which includes a first configuration of an uplink bandwidth portion, UL BWP, and a second transmission configuration of an uplink shared channel, wherein the first configuration indicates a resource block index, RB, corresponding to a lower frequency of the UL BWP and indicates the number of RBs of the UL BWP;a control section (401) that, when the uplink shared channel is configured by the second configuration and the uplink shared channel is activated by a Layer 1 signal, L1, determines a first frequency resource for the uplink shared channel before a frequency hopping, based on the L1 signaling, and determines a diversion from the first frequency resource to a second frequency resource for the uplink shared channel after the frequency hopping, based on the first configuration; and a transmission section (203) that transmits the uplink shared channel on the UL BWP and transmits an uplink control channel on the UL BWP.

2. Terminal (20), according to claim 1, characterized in that the control section (401) performs frequency hopping between seven symbols of a first half of a slot in the shared uplink channel and seven symbols of a second half of a slot.

3. Terminal (20), according to claim 1 or 2, characterized in that the control section (401) performs frequency hopping between slots in the uplink shared channel transmission over Petition 870240071662, dated 21 / 08 / 2024, page 61 / 63 2 / 2 a plurality of slots.

4. Terminal (20), according to any one of claims 1 to 3, characterized in that the shared uplink channel is allocated to consecutive resource blocks in the UL BWP.

5. Radio communication method for a terminal (20) characterized in that it comprises: receiving a radio resource control signal, RRC, which includes a first transmission configuration of an uplink bandwidth portion, UL BWP, and a second configuration of an uplink shared channel, wherein the first configuration indicates a resource block index, RB, corresponding to a lower frequency of the UL BWP and indicates the number of RBs of the UL BWP;When the uplink shared channel is configured by the second configuration and the uplink shared channel is activated by a Layer 1, L1 signal, determine a first frequency resource for the uplink shared channel before a frequency hopping, based on the L1 signaling, and determine a diversion from the first frequency resource to a second frequency resource for the uplink shared channel after the frequency hopping, based on the first configuration; and transmit the uplink shared channel on the UL BWP and transmit an uplink control channel on the UL BWP. Petition 870240071662, dated 08 / 21 / 2024, pp. 62 / 63;

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