User terminal and radio communication method

Abstract

The present invention is designed to appropriately configure sequences that are applied to reference signals and / or uplink control channels and so forth in future radiocommunication systems. One aspect of the user terminal of the present invention provides a transmission section that transmits a demodulation reference signal and / or an uplink control channel, to which predetermined sequences are applied, in predetermined slots, and a control section that controls each predetermined sequence that is used in the predetermined slots based on whether or not frequency hopping is used in the predetermined slots.

Description

1 / 79 USER TERMINAL AND RADIOCOMMUNICATION METHOD FIELD OF TECHNIQUE

[001] The present invention relates to a user terminal and a method of radio communication in next-generation mobile communication systems. BACKGROUND OF THE TECHNIQUE

[002] In the UMTS (Universal Mobile Telecommunications System) network, long-term evolution (LTE) specifications have been designed with the purpose of further increasing high-speed data rates, providing lower latency, and so on (see non-patent literature 1). In addition, LTE successor systems are also being studied with the purpose of achieving greater broadband universalization and increased speed beyond LTE (referred to, for example, as “LTE-A (LTE-Advanced)”, “FRA (Future Radio Access)”, “4G”, 5G, “5G+ (plus)”, “NR (New RAT)”, “LTE Rel. 14”, “LTE Rel. 15 (or newer releases)”, and so on).

[003] In existing LTE systems (e.g., LTE Rel. 8 to 13), downlink (DL) and / or uplink (UL) communication is performed using 1 ms subframes (also referred to as “transmission time intervals (TTIs)” and so on). These subframes are the time unit for transmitting a channel-encoded data packet, and serve as the processing unit, for example, in scheduling, link adaptation, retransmission control (HARQ (Hybrid Automatic Repeat Request)) and so on.

[004] Furthermore, in existing LTE systems (e.g., LTE Rel. 8 to 13), a user terminal transmits uplink control information (UCI) using an uplink control channel (e.g., a Petition 870250092937, dated 10 / 10 / 2025, page 13 / 94 2 / 79 A PUCCH (Physical Uplink Control Channel) or an uplink data channel (e.g., a PUSCH (Physical Uplink Shared Channel)). The format of this uplink control channel is called a PUCCH format (PF (PUCCH format)) and / or similar.

[005] Furthermore, in existing LTE systems, a user terminal multiplexes and transmits a UL channel and a DMRS in a 1 ms TTI. In a 1 ms TTI, multiple DMRSs from different layers for the same user terminal (or for different user terminals) are orthogonally multiplexed using cyclic offsets (CSs) and / or orthogonal spreading codes (e.g., orthogonal coverage codes (OCCs)). LIST OF CITATIONS Non-Patented Literature

[006] 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 Problem with the technique

[007] In existing LTE systems (e.g., LTE Rel. 13 or later releases), cell-to-cell interference is reduced by skipping a base sequence to a DMRS (DMRS sequence) to a UL channel every two slots contained in a 1 ms subframe (e.g., sequence group hopping (also called SGH or simply group hopping), sequence hopping, etc.).

[008] Considering future radiocommunication systems (e.g., LTE Rel. 14, 15 and more recent releases, 5G, NR, etc.), a study is underway to support a first uplink control channel. Petition 870250092937, dated 10 / 10 / 2025, page 14 / 94 3 / 79 (also referred to as a “short PUCCH”, “PUCCH format 0 or 2”, and so on) of a relatively short duration (e.g., one to two symbols), and a second uplink control channel (also referred to as a “long PUCCH”, “PUCCH format 1, 3, or 4”, and so on) of a longer duration (e.g., four to fourteen symbols) than the first uplink control channel.

[009] Furthermore, in future radiocommunication systems, the duration for allocating an uplink control channel (e.g., a long PUCCH) and / or the initial symbol can be flexibly configured in predetermined slots (slots provided). For example, it is anticipated that each UE UL transmission will be supported with the use of uplink control channels with variable durations and / or initial symbols on a per-slot basis. Furthermore, for future radiocommunication systems, studies are underway to control whether or not frequency hopping applies in slots.

[0010] As described above, in future radio communication systems where communication is controlled using durations and / or initial symbols different from those of existing LTE systems, the way to control the sequences to apply in DMRSs and / or PUCCHs (or sequence hopping) is a problem.

[0011] The present invention was produced with the above content in mind and it is therefore an object of the present invention to provide a user terminal and a radio communication method that can appropriately configure sequences to apply to reference signals, uplink control channels and / or other signals and channels in future radio communication systems. SOLUTION TO THE PROBLEM

[0012] In accordance with an aspect of the present invention, a Petition 870250092937, dated 10 / 10 / 2025, page 15 / 94 4 / 79 The user terminal has a transmission section that transmits a demodulation reference signal and / or an uplink control channel, in which predetermined sequences are applied, in predetermined slots, and a control section that controls each predetermined sequence that is used in the predetermined slots based on whether or not frequency hopping is used in the predetermined slots. ADVANTAGEOUS EFFECTS OF THE INVENTION

[0013] According to the present invention, it is possible to appropriately configure sequences to apply to reference signals and / or uplink control channels in future radiocommunication systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figures 1A and 1B provide diagrams that each show an example of the shape of an uplink control channel in future radiocommunication systems; Figure 2 is a diagram to show an example of a PUCCH format in future radio communication systems; Figures 3A and 3B are diagrams to show examples of long PUCCH durations and examples of OCC multiplexing capacities per period; Figures 4A and 4B are diagrams that illustrate relationships between OCC multiplexing capabilities and the sequences that are applied; Figures 5A and 5B are diagrams to show examples of predetermined sequences, according to the present embodiment; Figure 6 is a diagram to explain a predetermined sequence that is applied to a DMRS for a PUSCH; Figures 7A and 7B are diagrams, each illustrating a predetermined sequence that is applied to a DMRS for a PUSCH; Petition 870250092937, dated 10 / 10 / 2025, page 16 / 94 5 / 79 Figures 8A and 8B are diagrams to show examples of predetermined sequences, according to the present embodiment; Figures 9A and 9B are diagrams to show examples of group numbers (or predetermined sequence indices) that correspond to individual radio features; Figures 10A and 10B are diagrams to show other examples of group numbers (or predetermined sequence indices) that correspond to individual radio features; Figures 11A and 11B are diagrams to show other examples of group numbers (or predetermined sequence indices) that correspond to individual radio features, respectively; Figures 12A and 12B are diagrams to show other examples of group numbers (or predetermined sequence indices) that correspond to individual radio features; Figure 13 is a diagram to show examples of CS indices that correspond to individual radio resources; Figure 14 is a diagram to show other examples of CS indices that correspond to individual radio resources; Figure 15 is a diagram to show an example of a schematic structure of a radio communication system, according to the present embodiment; Figure 16 is a diagram to show an example of a general structure of a radio base station, according to the present embodiment; Figure 17 is a diagram to show an example of a functional structure of a radio base station, according to the present embodiment; Figure 18 is a diagram to show an example of a general structure of a user terminal, according to the present embodiment; Petition 870250092937, dated 10 / 10 / 2025, page 17 / 94 6 / 79 Figure 19 is a diagram to show an example of a functional structure of a user terminal, according to the present embodiment; and Figure 20 is a diagram to show an example of a hardware structure for a base radio station and a user terminal, according to the present embodiment. DESCRIPTION OF THE MODALITIES

[0015] In existing LTE systems (e.g., LTE Rel. 13 or later releases), two slots are provided in a 1 ms TTI. Furthermore, the DMRS for use in demodulating PUSCH is arranged in one symbol per slot (two symbols in a 1 ms TTI). As for the base sequences of DMRSs (also referred to as “DMRS sequences” and so on), for example, Zadoff-Chu (ZC) based sequences are used.

[0016] Furthermore, the number of DMRS sequences in existing LTE systems is configured to 30 or 60, depending on the bandwidth. For example, the number of DMRS sequences is thirty when the bandwidth is five physical resource blocks (also called “PRBs”, “resource blocks (RBs)”, etc.) or less, and sixty when the bandwidth is six PRBs or more.

[0017] In existing LTE systems, when the bandwidth is five PRBs or less, thirty DMRS sequences are identified by group numbers (u = 0 to 29) (also called “group indices” and so on). Furthermore, when the bandwidth is six PRBs or more, sixty DMRS sequences are identified by group numbers (u = 0 to 29) and base sequence numbers (v = 0 and 1) (also called “sequence indices” and so on).

[0018] When the same DMRS sequence is used between multiple user terminals in different cells, transmission signals from each Petition 870250092937, dated 10 / 10 / 2025, page 18 / 94 7 / 79 among the multiple user terminals interfere with each other. Therefore, in order to prevent these multiple user terminals from continuing to use the same DMRS sequence, the DMRS sequence is skipped for each slot in a 1 ms TTI. For example, in existing LTE systems, two types of skipping methods are used (namely, sequence group skipping and sequence skipping).

[0019] In sequence group hopping (also referred to as “SGH” or simply “group hopping”), the group number (u) observed above hops per slot in a 1 ms TTI. In SGH, each slot group number (u) is determined based on the hopping pattern (fgh) and the sequence shift pattern (fss). These hopping patterns and / or sequence shift patterns may be based on physical cell IDs (cell IDs) or virtual cell IDs. A user terminal can identify physical cell IDs from synchronization signal sequence numbers (PSS / SSS), and identify virtual cell IDs based on RRC signaling. Note that in existing LTE systems, for example, seventeen hopping patterns and thirty sequence shift patterns are used.

[0020] However, in sequence hopping, the base sequence number (v) mentioned above is skipped per slot within a TTI. The base sequence number (v) of each slot is determined based on a physical cell ID or a virtual cell ID. Sequence hopping is applied when the bandwidth is six PRBs or more, and is not used in combination with SGH (when SGH is applied, v = 0 is set).

[0021] As described above, in existing LTE systems, interference is randomized between cells, so SGH or sequence hopping can be applied to DMRS sequences.

[0022] In future radiocommunication systems (e.g., LTE Rel. 15 and later releases, 5G, NR, etc.), a study is underway to Petition 870250092937, dated 10 / 10 / 2025, page 19 / 94 8 / 79 transmit UCI using uplink control channels (e.g., PUCCHs) of multiple formats (e.g., NR PUCCH formats (NR PFs), which are also simply referred to as “PUCCH formats”) with at least different durations.

[0023] Figures 1 provide diagrams to show examples of PUCCHs in future radiocommunication systems. Figure 1A shows a PUCCH (a short PUCCH or a first uplink control channel) that comprises a relatively small number of symbols (e.g., to have a duration of one to two symbols). Figure 1B shows a PUCCH (a long PUCCH or a second uplink control channel) that comprises a larger number of symbols than a short PUCCH (e.g., to have a duration of four to fourteen symbols).

[0024] As shown in Figure 1A, a short PUCCH can be arranged in a predetermined number of symbols (in the present invention, one symbol) starting from the end of a slot. Note that the symbols for arranging a short PUCCH are not limited to the end of a slot, and a predetermined number of symbols at the top or in the middle of a slot can also be used. Furthermore, a short PUCCH can be arranged in one or more frequency features (e.g., one or more PRBs). Note that although the short PUCCH in Figure 1A is placed in consecutive PRBs, the short PUCCH can also be arranged in non-consecutive PRBs.

[0025] Furthermore, a short PUCCH can be time-division multiplexed and / or frequency-division multiplexed with an uplink data channel (hereinafter also referred to as a “PUSCH”) within a slot. Furthermore, a short PUCCH can be time-division multiplexed and / or frequency-division multiplexed with an uplink data channel. Petition 870250092937, dated 10 / 10 / 2025, page 20 / 94 9 / 79 downlink (hereinafter also referred to as a “PDSCH”) and / or a downlink control channel (hereinafter also referred to as a PDCCH (Physical Downlink Control Channel)) within a slot.

[0026] For a short PUCCH, a multi-carrier waveform (e.g., the OFDM (Orthogonal Frequency Division Multiplexing) waveform) can be used, or a single-carrier waveform (e.g., the DFT-s-OFDM (Discrete Fourier Transform Spreading Orthogonal Frequency Division Multiplexing) waveform) can be used.

[0027] On the other hand, as shown in Figure 1B, a long PUCCH is arranged in a larger number of symbols (e.g., four to fourteen symbols) than a short PUCCH. Referring to Figure 1B, this long PUCCH is not arranged in a predetermined number of symbols at the top of the slot, but it can be arranged in a predetermined number of symbols at the top.

[0028] As shown in Figure 1B, a long PUCCH can be comprised of fewer frequency resources (e.g., one or two PRBs) than a short PUCCH in order to achieve a power boosting effect, or it can be comprised of the same frequency resources as the short PUCCH.

[0029] Furthermore, a long PUCCH can be frequency-division multiplexed with a PUSCH in a slot. Additionally, a long PUCCH can be time-division multiplexed with a PDCCH in a slot. Furthermore, a long PUCCH can be arranged with a short PUCCH in the same slot. For a long PUCCH, a single carrier waveform (e.g., DFT-s-OFDM waveform) can be used, or a multi-carrier waveform (e.g., OFDM waveform) can be used.

[0030] Furthermore, as shown in Figure 1B, frequency hopping, where the frequency feature hops at a predetermined timing within Petition 870250092937, dated 10 / 10 / 2025, page 21 / 94 10 / 79 of a slot, can be applied to a long PUCCH. The timing at which the frequency feature jumps in a long PUCCH can be referred to as the "jump boundary", the "jump timing", the "jump pattern", and so on.

[0031] Figure 2 is a diagram to show an example of a PUCCH format in future radiocommunication systems. Figure 2 shows multiple PUCCH formats (NR PUCCH formats) with varying numbers of symbols and / or varying numbers of UCI bits. Note that the PUCCH formats shown in Figure 2 are only examples, and the content and index numbers of PUCCH formats 0 to 4 are not limited to those shown in Figure 2.

[0032] For example, PUCCH format 0 in Figure 2 is a short PUCCH for UCIs of up to two bits, and is also called a “sequence-based short PUCCH” and so on. This short PUCCH carries UCIs of up to two bits (e.g., a HARQ-ACK and / or an SR) in one or two symbols.

[0033] The PUCCH 1 format is a long PUCCH for up to two-bit UCI. This long PUCCH carries up to two-bit UCI in four to fourteen symbols. In the PUCCH 1 format, for example, multiple user terminals can be code-division multiplexed (CDM) on the same PRB by time-domain block spreading, which uses cyclic shift (CSs) and / or orthogonal covering codes (OCCs).

[0034] The PUCCH 2 format is a short PUCCH for UCI of more than two bits. This short PUCCH carries more than two UCI bits in one or two symbols.

[0035] The PUCCH 3 format is a long PUCCH for UCI exceeding N bits, and a single user terminal is multiplexed on the same PRB. N can be a predetermined value (e.g., 2). This long PUCCH carries UCI Petition 870250092937, dated 10 / 10 / 2025, page 22 / 94 11 / 79 which are larger than N bits (or N bits or more), in four to fourteen symbols. The PUCCH 3 format differs from the following PUCCH 4 format in that a plurality of user terminals is not multiplexed on the same PRB. Furthermore, OCCs can be applied to the PUCCH 3 format before DFT spreading.

[0036] The PUCCH 4 format is a long PUCCH for UCIs of more than two bits, and multiple user terminals can be multiplexed within the same PRB. This long PUCCH carries UCIs that exceed two bits and are smaller than N bits (or up to N bits) in four to fourteen symbols. In the PUCCH 4 format, multiple user terminals can be multiplexed by code division in the same PRB by time-domain block spreading, which uses CSs and / or OCCs. Alternatively, a plurality of user terminals can be multiplexed using at least one of block spreading (frequency domain) before discrete Fourier transform (DFT), frequency division multiplexing (FDM), and comb-tooth subcarriers. Furthermore, OCCs before DFT spreading do not need to be applied to the PUCCH 4 format.

[0037] Note that the threshold N for the number of UCI bits can be an integer to exceed three (or up to three), and can be specified in the specification, or can be configured via upper-layer signaling (at least one of RRC (Radio Resource Control) signaling), broadcast information (e.g., MIB (Master Information Block)), system information (e.g., SIBs (System Information Blocks), RMSI (Minimum Remaining System Information), etc.). Alternatively, the threshold N does not need to be defined.

[0038] The PUCCH 4 format differs from the PUCCH 3 format in that a plurality of user terminals can be multiplexed on the same PRB. Petition 870250092937, dated 10 / 10 / 2025, page 23 / 94 12 / 79 It can be seen that the PUCCH 3 format and the PUCCH 4 format can be interchanged and defined, and the PUCCH 3 format and the PUCCH 4 format can be defined as being the same PUCCH format (for example, PUCCH 3 format).

[0039] Note that, in Figure 2, N can be used in different values ​​between PUCCH format 3 and PUCCH format 4. For example, N=2 can be used in PUCCH format 3, and N=100 can be used in PUCCH format 4. The PUCCH formats that can be used in this embodiment are not limited to the configurations shown in Figure 2.

[0040] Furthermore, in future radiocommunication systems, the duration for allocating an uplink control channel (e.g., a long PUCCH) and / or the initial symbol can be flexibly configured in predetermined slots (see Figure 3A). Figure 3A shows a case where the duration (symbols) for allocating a PUCCH is configured from four to fourteen. Note that the locations and / or proportions of DMRS symbols and UCI symbols are not limited to the format shown in Figure 3A.

[0041] Furthermore, in future radiocommunication systems, the number of user terminals to be multiplexed using OCCs is determined based on the duration of a long PUCCH (e.g., PF 1 carrying up to two UCI bits) (long PUCCH duration). The number of user terminals to be multiplexed by OCCs in the time domain (also referred to as “time-domain OCCs”) can be paraphrased as the “OCC multiplexing capacity”, the “OCC length”, the “spreading factor (SF)”, and so on.

[0042] Figure 3B is a diagram to show examples of OCC multiplexing capacities for long PUCCH durations. As shown in Figure 3B, one can assign, to the OCC multiplexing capacity M for each Petition 870250092937, dated 10 / 10 / 2025, page 24 / 94 13 / 79 Long PUCCH duration, different values ​​depending on whether or not frequency hopping is used in that long PUCCH duration. For example, referring to Figure 3B, if the N duration of the long PUCCH is fourteen symbols, and frequency hopping is used, the OCC multiplexing capacity is three. On the other hand, if frequency hopping is not used, the OCC multiplexing capacity is seven.

[0043] When UEs are multiplexed using cyclic offsets (CSs) in addition to OCCs, the maximum multiplexing capacity value on a given resource is the maximum OCC capacity value x the number of CSs. The number of CSs can be a predetermined value (e.g., 12).

[0044] When applying time-domain OCCs to a PUCCH (e.g., PF 1), from the point of view of orthogonality conservation, the basis sequence needs to be the same (the same basis sequence needs to be applied) within a range of the same OCC length. Note that the cyclic shifts to be applied to basis sequences can assume different values.

[0045] For example, when the duration of a PUCCH is fourteen symbols and frequency hopping is disabled, the OCC multiplexing capability (OCC length) is seven (see Figure 3B). In this case, the same base sequence needs to be applied to the PUCCH to which OCC multiplexing capability 7 applies (the PUCCH's ICU symbols and / or the DMRS symbols for the PUCCH) (see Figure 4A).

[0046] However, when the duration of a PUCCH is fourteen symbols and frequency hopping is enabled, the OCC multiplexing capacity (OCC length) is three (see Figure 3B). In this case, it is necessary to apply the same base sequence to the PUCCH of the first half of a frequency hopping, where OCC multiplexing capacity 3 is applied, and apply the same base sequence to the PUCCH of the second half. Petition 870250092937, dated 10 / 10 / 2025, p. 25 / 94 14 / 79 of the frequency jump (see Figure 4B).

[0047] In this case, the problem lies in how to control the generation of base sequences (e.g., base sequences to apply to PUCCHs) when frequency hopping is applied (enabled) and when frequency hopping is not applied (disabled). Alternatively, while in existing LTE systems frequency hopping for PUCCHs is performed in a per-slot manner (in slot units), in future radio communication systems, it is anticipated that frequency hopping will be performed within a slot. In this case, how to control the generation of base sequences becomes a problem.

[0048] Therefore, according to one aspect of the present invention, the present inventors had the idea of ​​controlling each predetermined sequence (provided sequence) for use in predetermined slots (including, for example, the number of predetermined sequences), taking into account whether or not frequency hopping is used in those predetermined slots. For example, in a slot where frequency hopping is used, different base sequences can be used each time frequency hopping is applied.

[0049] Furthermore, in accordance with another aspect of the present invention, the present inventors had the idea of ​​controlling each predetermined sequence for use in predetermined slots (including, for example, the number of predetermined sequences) without regard to whether or not frequency hopping is used in those predetermined slots (i.e., regardless of whether frequency hopping is used or not). For example, in a slot where frequency hopping is used, the same base sequence can be used between frequency hoppings.

[0050] Next, the present modality will be described in detail. The modalities described below can be applied independently or Petition 870250092937, dated 10 / 10 / 2025, page 26 / 94 15 / 79 in combination. A predetermined sequence, according to the present embodiment below, may be used for at least one of the following UCI symbols of a PUCCH (e.g., a long PUCCH), DMRS symbols of a PUCCH (e.g., a long PUCCH), a base sequence for a PUCCH (e.g., a short PUCCH), and a DMRS for a PUCCH. Obviously, a predetermined sequence may be applied to other signal and / or channel sequences. Furthermore, a predetermined sequence may be referred to as a “base sequence”, a “reference signal sequence”, or a “demodulation reference signal sequence”.

[0051] Furthermore, according to the present embodiment described below, skipping a predetermined sequence may mean skipping the group number of the predetermined sequence (which is also referred to as “sequence group skip (SGH)”, “group skip” and so on), and / or skipping the base sequence number of the predetermined sequence (which is also referred to as “sequence skip” and so on). Furthermore, skipping a predetermined sequence is not limited to the SGH and / or sequence skip above provided that different predetermined sequences are used for a predetermined duration (e.g., for sTTI).

[0052] Furthermore, according to the present embodiment, a predetermined sequence can be identified based on a group number and / or a base sequence number. In the following description, if there are parts related to the generation of predetermined sequences that are not specifically mentioned, methods (e.g., mathematical formulas and so on) for generating base sequences (or DMRS sequences) in existing LTE systems may be applied. (First Aspect)

[0053] Consistent with a first aspect of the present invention, Petition 870250092937, dated 10 / 10 / 2025, p. 27 / 94 16 / 79 A case will be described below in which predetermined sequences (including, for example, the number of predetermined sequences) that are used in predetermined slots are each controlled independently, taking into account whether or not frequency hopping (FH) is used in those predetermined slots. More specifically, a case will be described below in which, in a predetermined slot, the number of predetermined sequences used to transmit PUCCH and / or others when frequency hopping (FH) is disabled and the number of predetermined sequences used to transmit PUCCH and / or others when frequency hopping is enabled are configured separately (for example, to be different numbers).Note that although the number of predetermined sequences to apply in PUCCH and other transmissions is described as an example in the description below, the method of generating predetermined sequences can be controlled depending on whether or not frequency hopping is applied.

[0054] When frequency hopping is set to disabled, a predetermined number of predetermined sequences (e.g., a predetermined sequence) is used in each slot (see Figure 5A). For example, when frequency hopping is disabled in slots #0 to #4 of Figure 5A, in each slot, a predetermined sequence (in the present invention, one of predetermined sequences #A0 to #A4) is used for at least one of PUCCH UCI symbols, PUCCH DMRS symbols, a base sequence for PUCCH, and the DMRS for PUCCH. Figure 5A shows a case where predetermined sequence #A is applied to slot #0.

[0055] In this case, predetermined sequence #A (for example, predetermined sequence index #A) is determined using at least one of the following: cell ID, virtual cell ID, slot index, and PRB index. From Petition 870250092937, dated 10 / 10 / 2025, page 28 / 94 17 / 79 More specifically, the predetermined sequence index #A can be determined using an equation that contains at least one of the virtual cell ID, slot index, and PRB index.

[0056] For example, when the predetermined sequence #A is selected based at least on the slot index, the index of the predetermined sequence can be randomized between slots. That is, a predetermined sequence that is different from the predetermined sequence #A can be used in slot #1. In this way, it is possible to prevent interference from occurring between neighboring cells.

[0057] Furthermore, by using a (same) predetermined sequence in a predetermined slot, the OCC length in the time domain can be applied to DMRSs or PUCCHs (see Figure 6). Figure 6 shows a format in which DMRSs for a PUCCH are placed on two symbols in a slot (in this case, on the third and twelfth symbols from the beginning). In this case, by applying the same sequence (e.g., a sequence of DMRSs) to DMRSs on different symbols, time domain OCCs can be applied to the DMRSs. In this way, the multiplexing capacity of UEs can be increased.

[0058] Note that Figure 5A shows the case where a predetermined sequence is used per slot, but this is by no means limiting. Several predetermined sequences can be used if time-domain OCCs are unnecessary due to signal or channel layout and other reasons.

[0059] When frequency hopping is enabled, multiple predetermined sequences (predetermined sequence indices) are used in each slot (see Figure 5B). For example, if frequency hopping is enabled in each of slots #0 to #4 in Figure 5B, a number of predetermined sequences corresponding to the number of fields Petition 870250092937, dated 10 / 10 / 2025, page 29 / 94 18 / 79 frequency used for hopping in each slot (e.g., the number of hops + 1) is used for at least one of the following PUCCH UCI symbols, PUCCH DMRS symbols, base sequences for PUCCH, and DMRSs for PUCCH. For example, in the case of a frequency hopping once, predetermined sequences are mapped to two frequency fields, so that two predetermined sequences (in the present invention, predetermined sequences #B and #C) can be used in each slot.

[0060] In this case, predetermined sequences #B and #C (for example, predetermined sequence indices #B and #C) are selected using at least one of the following: cell ID, virtual cell ID, slot indices, PRB indices, jump indices, and the initial symbol index of each jump. More specifically, the predetermined sequence indices #B and #C can be determined using an equation that includes at least one of the following: cell ID, virtual cell ID, slot indices, PRB indices, jump indices, and the initial symbol index of each jump segment.

[0061] The jump indices can be numbered according to the order of jumps. For example, if a frequency jumps once, the index value of the first half of that frequency jump can be set to 0, and the index value of the second half of that frequency jump can be set to 1.

[0062] For example, when a PUCCH and / or a PUSCH is allocated from a symbol in the middle of a slot, the predetermined sequence to apply to the first half of that frequency hopping is selected based on the hopping index that corresponds to the first half. Similarly, the predetermined sequence to apply to the second half of that frequency hopping is selected based on the hopping index that corresponds to the second half. In this case, the predetermined sequence can be selected Petition 870250092937, dated 10 / 10 / 2025, page 30 / 94 19 / 79 regardless of the symbol indices (without using the symbol indices) in which PUCCH and / or PUSCH are allocated. Furthermore, the control can be executed so that different predetermined sequences are used between frequency hopping and between slots.

[0063] Thus, when frequency hopping is applied, different predetermined sequences are used in each hopping segment, so that it is possible to provide a frequency diversity effect, and prevent interference from being produced between neighboring cells.

[0064] Even when frequency hopping is applied, the OCC length in the time domain can be applied to DMRSs or PUCCHs using a (same) predetermined sequence in each hopping segment (see Figures 7). Figure 7A shows a format in which DMRSs for the PUCCH are placed on two symbols in the first half of a hopping segment (in this case, on the third and seventh symbols from the beginning), and in which DMRSs for the PUCCH are placed on two symbols in the second half (in the present invention, the first and seventh symbols from the beginning). In this case, the same sequence (e.g., a sequence of DMRSs) is applied to the DMRSs of different symbols in each hopping segment, so that time domain OCCs can be applied to the DMRSs. In this way, the multiplexing capacity of UEs can be increased.

[0065] Note that Figure 7A shows a case where a predetermined sequence is used per slot, but this is by no means limiting. Several predetermined sequences can be used in each hop portion if time-domain OCCs are unnecessary due to signal or channel arrangement and other reasons (Figure 7B).

[0066] Furthermore, the index of the predetermined sequence #A used when frequency hopping is disabled and the index of the predetermined sequence #B Petition 870250092937, dated 10 / 10 / 2025, page 31 / 94 20 / 79 or #C (one among several) used when frequency hopping is enabled may have the same value or may have different values. For example, predetermined sequences #A and #B, or predetermined sequences #A and #C may have the same value, or predetermined sequences #A to #C may have different values.

[0067] Thus, predetermined sequences for use in predetermined slots are each controlled independently based on whether or not frequency hopping is used in those predetermined slots, so that the predetermined sequence to be used can be flexibly configured depending on whether or not frequency hopping is used in slots. (Second Aspect)

[0068] In accordance with a second aspect of the present invention, a case will be described below in which predetermined sequences (including, for example, the number of predetermined sequences) to be used in predetermined slots are controlled without regard to whether frequency hopping is used in those predetermined slots or not (regardless of whether frequency hopping is used or not). More specifically, a case will be described below in which, in a predetermined slot, the number of predetermined sequences used to transmit PUCCH and / or others when frequency hopping is disabled and the number of predetermined sequences used to transmit PUCCH and / or others when frequency hopping is enabled are configured in a common way.Note that although the number of predetermined sequences is described as an example in the description below, the method for generating predetermined sequences can be controlled independently of whether or not frequency hopping is applied. Petition 870250092937, dated 10 / 10 / 2025, page 32 / 94 21 / 79

[0069] When frequency hopping is set to disabled, and when frequency hopping is set to enabled, a predetermined number of predetermined sequences (e.g., a predetermined sequence) is used in each slot (see Figures 8). For example, when frequency hopping is not performed in slots #0 to #4 of Figure 8A, in each slot, a predetermined sequence is used for at least one of the following: PUCCH UCI symbols, PUCCH DMRS symbols, a base sequence for PUCCH, and DMRS for PUCCH. Figure 8A shows a case where predetermined sequence #A is applied to slot #0.

[0070] Similarly, when frequency hopping is used in slots #0 to #4 of Figure 8B, in each slot, a predetermined sequence is used for at least one of the following: PUCCH UCI symbols, PUCCH DMRS symbols, a base sequence for PUCCH, and DMRS for PUCCH. Figure 8B shows a case where a predetermined sequence (e.g., predetermined sequence #A) that is generated by the same method (e.g., the equation) as that in Figure 8A is applied to slot #0.

[0071] In this case, the predetermined sequence #A (for example, the index of the predetermined sequence) is determined using at least one of the cell ID, virtual cell ID, slot index, PRB index, and initial symbol index of each jump segment. More specifically, the index of the predetermined sequence #A can be determined using an equation that contains at least one of the virtual cell ID, slot index, PRB index, and initial symbol index of each jump segment.

[0072] If frequency hopping is enabled in a predetermined slot, a predetermined sequence index that is common to each frequency hopping portion is applied. For example, as shown in Figure 8B, a common predetermined sequence is applied to the first Petition 870250092937, dated 10 / 10 / 2025, page 33 / 94 22 / 79 half (jump #0) and the second half (jump #1) of a frequency jump in each slot.

[0073] For example, a UE can select a predetermined sequence based at least on the slot index. As a result, it is possible to randomize the index of the predetermined sequence between slots. In this way, it is possible to prevent interference from occurring between neighboring cells.

[0074] In addition, predetermined sequences are derived based on a common selection method (e.g., an equation) when frequency hopping is set to disabled and when frequency hopping is set to enabled, so that selection of predetermined sequences can be simplified. This makes it possible to reduce the load on transmission processes in the UE. (Third Aspect)

[0075] In accordance with a third aspect of the present invention, an example of the method for selecting predetermined sequences will be described below. It is observed that the method for selecting predetermined sequences, which will be described below, can be appropriately applied to the predetermined sequences of the first aspect and the second aspect.

[0076] Hereafter, a case in which a sequence is selected by slot, regardless of the symbol indices (e.g., the top symbol index) in which a PUCCH, a DMRS, and / or others are allocated (sequence selection example 1), a case in which a plurality of (e.g., two) sequences is selected by slot (sequence selection example 2), and a case in which one or more sequences are selected based on the symbol indices (e.g., the top symbol index) in which a PUCCH, a DMRS, and / or others are allocated (sequence selection example 3) will be described below. Petition 870250092937, dated 10 / 10 / 2025, page 34 / 94 23 / 79

[0077] Sequence selection example 1 can be appropriately applied to the case where the frequency hopping pattern of the first aspect is set to disabled and to the second aspect. Sequence selection example 2 can be appropriately applied to the first and second aspects (especially when the frequency hopping pattern is set to enabled in the first aspect). Sequence selection example 3 can be appropriately applied to the first and second aspects. Note that these are by no means the only methods for selecting predetermined sequences. <Exemplo de Seleção de Sequência 1>

[0078] A UE selects a predetermined sequence using the index of a predetermined parameter. For example, the UE can select the index of a predetermined sequence using an equation that contains the index of a predetermined parameter. The index of a predetermined sequence can be determined based on a group number and a base sequence number (for example, based on an equation that contains the group number and the base sequence number).

[0079] The group number (u) can be defined using, for example, an equation containing a slot index and / or a frequency feature index (PRB and / or RE) (see equation 1).

[0080] u=(ffht(ns)+fghB(k^ ... (Equation 1)

[0081] Equation 1 is an equation for use in determining the group number (u) that corresponds to the minimum frequency resource index (lowest PRB and / or RE index) #k in which slot #ns, a PUCCH and / or a PUSCH are allocated. In the present invention, the group number (u) is defined based on Petition 870250092937, dated 10 / 10 / 2025, page 35 / 94 24 / 79 group jump patterns fghslot(ns) and fghPRB(k) and a sequence shift pattern (fss). Note that the slot index can be a slot index (a vertical slot index) that is initialized (ns= 0) at each predetermined duration (e.g., 10 ms).

[0082] The group hopping pattern fghslot(ns) contains a slot index, and the group hopping pattern fghPRB(k) contains a frequency feature index (PRB and / or RE). Note that the equation for the group number of a predetermined sequence is not limited to equation 1 above. A configuration that does not include some of the group hopping pattern parameters (e.g., fghPRB(k)) can be used. Alternatively, a configuration to include other parameters can be used.

[0083] Thus, the group number (u) can be determined based on hop patterns and a sequence shift pattern. This hop pattern and / or sequence shift pattern can be based on a physical cell ID (cell ID) or a virtual cell ID. The UE can identify the physical cell ID from the synchronization signal sequence number (PSS / SSS), and identify the virtual cell ID based on RRC signaling.

[0084] By selecting the group number (u) taking into account the slot and / or PRB in which the PUCCH or DMRS is allocated, the predetermined sequence can be randomized between slots and / or between PRBs. As a result, even when PUCCHs or DMRSs are allocated in slot units and / or in PRB units, cell interference can be reduced.

[0085] A configuration can be used in the present invention whereby some or all of the fghslot(ns) and fghPRB(k) group hopping patterns can be configured to be enabled or disabled based on base station reports. For example, upper layer signaling (e.g., Petition 870250092937, dated 10 / 10 / 2025, page 36 / 94 25 / 79 cell-specific RRC signaling (RRC parameter), and / or broadcast signals, etc.) can be used to send reports from the base station.

[0086] Next, a case in which the use or non-use of all fghs / of(ns) and fghPRB(k) group hopping patterns is controlled based on a base station report (configuration example 1) and a case in which the use or non-use of part of the fghs / of(ns) and fghPRB(k) group hopping patterns is controlled based on a base station report (configuration example 2) will be described below. <Exemplo de Configuração 1>

[0087] Configuration example 1 will illustrate a case where group hopping patterns f8hs“(ns) and f6hPRB(k) are each controlled in enabled and disabled mode based on base station reports. The UE controls whether or not to use hopping patterns, at the slot level and / or at the RB level, based on cell-specific RRC parameters (see equations 2).

[0088] if group jump is disabled y λ — / _J _ \ ξ c(Z:}oi* H. H-ϊ) 2' |mod30 if group jump is enabled 10 if group jumping is disabled Σ -c.çz+ íy ,2'· |mod30se group jump is enabled ... (Equations 2)

[0089] In the present invention, Zs / Ofe ZPRB can assume values ​​that are set in advance in the specification (for example, the number of scrambling codes), or assume values ​​that are reported from the base station to the UE. As an example, Zs / Of=8 and ZPRB=10 can be used. Obviously, the values ​​of Zs / Ofe ZPRB are not limited to these.

[0090] Furthermore, c(i) and c'(i) are pseudorandom sequences, and are defined in advance in the specification using parameters. Petition 870250092937, dated 10 / 10 / 2025, page 37 / 94 26 / 79 predetermined. Note that, in the present invention, the settings (values) of c(i) and c'(i) to be applied to each group jump pattern can be configured in the same way or can be configured differently.

[0091] The generation of pseudo-random sequences is initialized by cinic. For example, cinic is defined by equation 3 below, and the generation of pseudo-random sequences is initialized (or re-tuned) using this cinic every predetermined duration (e.g., every 10 ms). In this case, the slot index (ns) can also be initialized (ns=0) at the same time. Note that cinics that are applied to each individual group jump pattern can be configured in the same way, or they can be configured differently. For example, it may be possible to apply variable c(i)s to each group jump pattern, and use the same cinic for initialization (re-tuning).

[0092] NIC Cell£inic i. ... (Equation 3)

[0093] In equation 3, NIDcell is a configurable ID and, for example, a virtual cell ID or a cell ID can be used. Note that the sequence shift pattern (fss) can be determined based on NIDcell. For example, in a predetermined sequence of a PUCCH, the sequence shift pattern can be determined based on a predetermined equation (e.g., fssPUCCH=NIDcellmod30). Furthermore, a configuration can be employed in the present invention wherein, in a group number, (cinic+1) jump patterns and thirty sequence shift patterns are used.

[0094] Referring to equation 2, when group jump patterns fghslotns) and fghPRB(k) are disabled, these jump patterns assume the value 0. By Petition 870250092937, dated 10 / 10 / 2025, page 38 / 94 27 / 79 On the other hand, when group jump patterns fghslot(ns) and fghPRB(k) are enabled, predetermined values ​​are set. In this case, the group number index (predetermined sequence) is determined based on the value of a group jump pattern that is set to enabled.

[0095] Figure 9A shows examples of group numbers (u) that correspond to individual radio resources in the case of group hopping pattern fghslot(ns) being used (fghslot(ns) is enabled) and fghPRB(k) not being used (fghPRB(k) is disabled). In the present invention, the same group number is assigned to each PRB in a slot. In this case, the group numbers can be randomized at least between slots.

[0096] Figure 9B shows examples of group numbers (u) that correspond to individual radio resources in the case of group hopping patterns fghslot(ns) and fghPRB(k) being used (fghslot(ns) and fghPRB(k) are enabled). In this case, the group numbers are randomized between slots and between PRBs. Consequently, it is possible to effectively reduce interference with neighboring cells.

[0097] A plurality of group hop patterns fghslot(ns) and fghPRB(k) can be configured (enabled or disabled) on a UE at the same time, or can be configured separately (independently). When a plurality of group hop patterns fghslot(ns) and fghPRB(k) is configured at the same time, for example, the base station configures these group hop patterns fghslot(ns) and fghPRB(k) in enabled or disabled mode, on a UE, collectively, using a bit. In this case, it is possible to suppress the increase in the number of bits required to send a report.

[0098] Alternatively, the base station can separately configure a plurality of fghslot(ns) and fghPRB(k) group hopping patterns, either enabled or disabled, in a UE, using bit fields. Petition 870250092937, dated 10 / 10 / 2025, page 39 / 94 28 / 79 where RRC signaling varies (or with the use of different RRC signaling). In this case, the base station can flexibly control whether or not to configure each group hopping pattern fghs / of(ns) or fghPRB(k). <Exemplo de Configuração 2>

[0099] According to configuration example 2, enabling or disabling a predetermined group hopping pattern (e.g., frequency resource level hopping pattern fghPRB(k)) is controlled based on a base station report. However, slot level hopping pattern fghslot(ns) θ is controlled to be used (or enabled) independently of the base station report (see equations 4).

[00100] yslot _i \ c(Zs'°'*na+0-2' mod30 if group jump is disabled f (Ή = V dep A1 711 V -H)-2' mod30 if group jump is enabled l\^í=0} ... (Equations 4)

[00101] In equations 4, when group hopping pattern fghPRB(k) is disabled, the value is 0. Conversely, when group hopping pattern fghPRB(k) is enabled, a predetermined value is set. Furthermore, the group hopping pattern fghs / of(ns) is set to a predetermined value regardless of the base station report. That is, the UE determines the index of a group number (i.e., a predetermined sequence) based on at least slot-level group hopping pattern tghlot(ns).

[00102] Figure 9A shows examples of group numbers (u) that correspond to individual radio resources in the case where the PRB level group hopping pattern fghPRB(k) is not used (fghPRB(k) is disabled). In this Petition 870250092937, dated 10 / 10 / 2025, page 40 / 94 In the 29 / 79 case, the slot-level group hopping pattern fghslot(ns) is used, so that the group numbers (u) are randomized between slots. However, the same group number is set between PRBs.

[00103] Figure 9B shows examples of group numbers (u) that correspond to individual radio resources in the case of the PRB level group hopping pattern fghPRB(k) being used (fghPRB(k) is enabled). In this case, the group numbers are randomized between slots and between PRBs. Consequently, it is possible to effectively reduce interference with neighboring cells.

[00104] Thus, by applying a slot-level group hopping pattern independently of the base station report, it is possible to randomize the predetermined sequence at least between slots. Thus, even when a symbol-level PRB fghPRB(k) group hopping pattern is not used, cell-to-cell interference can be partially suppressed.

[00105] It is observed that, although configuration example 2 illustrated a case where slot-level group hop pattern fghslot(ns) is used independently of the base station report, this is by no means limiting. For example, the control can be implemented in the present invention so that PRB-level group hop pattern fghPRB(k) can be used independently of the report from the base station, and slot-level group hop pattern fghslot(ns) is used or not used depending on the report from the base station.

[00106] Furthermore, sequence selection example 1 can exert control so that symbol-level group hop pattern fghsymbol(l) is not used, and slot-level and / or PRB-level group hop patterns fghslot(ns) and fghPRB(k) are used or not used depending on the base station report. This allows the same base sequence to be applied to Petition 870250092937, dated 10 / 10 / 2025, page 41 / 94 30 / 79 different symbols in the same slot, so that when PUCCHs or PUSCHs are used in a plurality of symbols, it is possible to increase the multiplexing capacity of PUCCHs or PUSCHs by applying time-domain OCCs between symbols. <Variações>

[00107] Furthermore, according to the description above, the group number (u) is configured to accommodate a plurality of group jump patterns fghslot(ns) and fghPRB(k) individually (e.g., see equation 1), but this is by no means limiting. For example, the group number (u) can be defined using group jump pattern fgh(ns) and sequence shift pattern (fss) (see equation 5).

[00108] u = (fgh(^s) + Ace)mod30 ... (Equation 5)

[00109] Furthermore, fgh(ns) is configured to include at least one of a slot index (ns) and a frequency feature index (PRB and / or RE) (k). An example of the fgh(ns) group hopping pattern configuration will be described below. [Example of fgh (ns) Configuration 1]

[00110] With configuration example 1, whether or not to use a slot-level hopping pattern and a frequency resource-level hopping pattern is controlled based on base station reports. For example, if the fgh(ns) group hopping pattern is disabled by a base station report, its value becomes 0. Furthermore, when the fgh(ns) group hopping pattern is enabled by a base station report, a predetermined value is set (see equation 6).

[00111] Petition 870250092937, dated 10 / 10 / 2025, page 42 / 94 31 / 79 c(Z^' -y™ -y^-^ + z^ -A + o if group jump is disabled7Í[mod30se sa'todesrupo is J enabled ... (Equation 6)

[00112] In the present invention, zcell can be a value that is provided in advance in the specification (for example, the number of scrambling codes), or it can be a value reported from the base station to the UE. For example, Zcell=20 can be configured. Obviously, the value of Zcell is not limited to this. Furthermore, zcell can assume different values ​​per group jump, or it can assume a common value.

[00113] Furthermore, NRB is the number of PRBs and / or REs in a given bandwidth (e.g., cell bandwidth, or bandwidth configured for the UE), and NSímbUL is equivalent to the number of symbols included in a slot, or the number of uplink symbols included in a slot. Other parameters (c(i) and others) can be configured as in equation 1.

[00114] The predetermined value when the group hopping pattern fgh(ns) is enabled is selected based on the slot index (ns), the frequency feature index (k), and so on. In this case, the group number is randomized between slots and between PRBs. Consequently, it is possible to effectively reduce interference with neighboring cells. [Example of fgh(ns) Configuration 2]

[00115] With configuration example 2, applying or not applying the PRB level hopping pattern is controlled based on a report from the base station. For example, when the fgh(ns) group hopping pattern is disabled by a report from the base station, the value of fgh(ns) is determined based on the slot index (see equation 7).

[00116] On the other hand, when the group hopping pattern fgh(ns) is Petition 870250092937, dated 10 / 10 / 2025, page 43 / 94 32 / 79 enabled by a report from the base station, the value of fgh(ns) is determined based on the slot index (ns) and the frequency resource index (k). Note that the value for when the group hopping pattern fgh(ns) is disabled can be referred to as the first configuration value (bit value) and the value for when the group hopping pattern fgh(ns) is enabled can be referred to as the second configuration value (bit value).

[00117] 4¾ (λ) cfZ^ c(Zaiin ) - 2' Imod 30 sesa'tode grupo estiver J disabled -k + 0 - 30 if group jumping is enabled ... (Equation 7)

[00118] In this case, regardless of the base station report, the group number can be determined using the slot index (applying a slot-level hopping pattern). In this way, even when a PRB symbol-level group hopping pattern is not used, interference between cells can be partially suppressed.

[00119] Note that although configuration example 2 illustrated a case where slot-level group hopping is used independently of the base station report, this is by no means limiting. For example, in equation 7, the slot index and frequency feature index can be substituted. <Exemplo de Seleção de Sequência 2>

[00120] According to sequence selection example 2, a plurality of (e.g., two) sequences is always selected per slot. The UE can select the sequence to be used from a plurality of selected sequences (also called a sequence candidate) when necessary. Note that in the following description, parts that are Petition 870250092937, dated 10 / 10 / 2025, page 44 / 94 33 / 79 different from the sequence selection example 1 will be explained, and the other parts can be implemented in the same way as in sequence selection 1.

[00121] The group number (u) can be defined by an equation that contains at least one of the slot index, the frequency feature index (PRB and / or RE), and the skip index (see equation 8).

[00122] u = (fgh^ns) + fg(k) + fgs£lto(p) + / ss)mod30 (Equation 8)

[00123] Equation 8 is an equation for use in determining the group number (u) corresponding to slot #ns, minimum frequency feature index #k (the lowest PRB and / or RE index) in which a PUCCH and / or a PUSCH are allocated, and jump index #p. In the present invention, the group number (u) is defined using group jump patterns fghslot(ns), fghPRB(k) and fghsalto(p), and a sequence shift pattern (fss).

[00124] The group hopping pattern fghsalto(p) contains hopping indices. The hopping indices can be numbered according to the order in a hopping. For example, if a frequency hops once, the index value of the first half of that frequency hopping can be set to 0, and the index value of the second half of that frequency hopping can be set to 1. Note that the equation for the group number of a predetermined sequence is not limited to equation 8 above. A configuration that does not include some of the group hopping pattern parameters (e.g., fghPRB(k) and / or fghslot(ns)) can be used. Alternatively, a configuration to include other parameters can be used.

[00125] Thus, by selecting the group number (u) taking into account the jump part indices in which PUCCH, PUSCH or DMRS is allocated, the predetermined sequence can be randomized between Petition 870250092937, dated 10 / 10 / 2025, page 45 / 94 34 / 79 jumps. Furthermore, by selecting the group number index based on jump indices (in the present invention, 0 and 1), a number of predetermined sequences (predetermined sequence candidates) to correspond to the number of jumps (e.g., (number of jumps + 1) predetermined sequences) can be selected.

[00126] For example, when two jump indices 0 and 1 are used, in each slot, two predetermined sequences (also called predetermined sequence candidates) can always be calculated. When one sequence is used per slot (for example, when frequency hopping is disabled in the first aspect or second aspect), a predetermined sequence to be actually used can be selected from predetermined sequence candidates. For example, the UE can select a group number (predetermined sequence) determined from a small value (e.g., 0) of the jump index. Alternatively, the value of any jump index can be randomly selected and used.

[00127] A configuration can be employed in the present invention whereby some or all of the group hop patterns fghslot(ns), fghPRB(k), and fghsalto(p) can be enabled or disabled based on base station reports. Alternatively, a configuration can be adopted whereby a predetermined group hop pattern (e.g., fghsalto(p)) is used independently of base station reports. More specifically, a mathematical formula can be used in the present invention that adds the hop index (group hop pattern fghsalto(p)) to the slot index and PRB index in equations 2, 4, 6, and 7, which were shown in sequence selection method 1.

[00128] Figure 10A shows examples of group numbers (u) that correspond to individual radio resources in the case of hopping patterns. Petition 870250092937, dated 10 / 10 / 2025, page 46 / 94 35 / 79 group fghslot(ns) and fghsalto(p) are used (i.e., fghslot(ns) and fghsalto(p) are enabled) and fghPRB(k) is not used (i.e., fghPRB(k) is disabled). In the present invention, the same group number is assigned to each PRB in a slot. In this case, the group number (predetermined sequence index) can be randomized at least between slots and between jumps.

[00129] In Figure 10A, different group numbers are assigned between frequency hops (in a slot). In this case, two group number candidates (predetermined sequence) (e.g., 26, 12, etc.) are defined in a slot. The UE has to select the predetermined sequence to actually use from predetermined sequence candidates depending on the number of predetermined sequences to be used in each slot.

[00130] Figure 10B shows examples of group numbers (u) that correspond to individual radio resources when group hopping patterns fghslot(ns), fghsalto(p), and fghPRB(k) are used (i.e., fghslot(ns), fghsalto(p), and fghPRB(k) are enabled). In this case, the group number is randomized between slots, between hops, and between PRBs. Consequently, it is possible to effectively reduce interference with neighboring cells. <Exemplo de Seleção de Sequência 3>

[00131] In sequence selection example 3, one or a plurality of group number indices (predetermined sequence) is selected based on the index of a predetermined symbol (e.g., the top symbol) where PUCCH, PUSCH, or DMRS is allocated. Note that in the following description, parts that are different from sequence selection examples 1 and 2 will be explained, and the other parts are the same as those in sequence selection examples 1 and 2.

[00132] The group number (u) can be defined using an equation that contains at least one of the slot index and the feature index. Petition 870250092937, dated 10 / 10 / 2025, page 47 / 94 36 / 79 frequency (PRB and / or RE) and the symbol index (see equation 9).

[00133] = (j / P^ns) ... (Equation 9)

[00134] Equation 9 is an equation for use in determining the group number (u) corresponding to slot #ns, minimum frequency feature index #k (the lowest PRB and / or RE index) in which a PUCCH and / or a PUSCH are allocated, and symbol #1. In the present invention, the group number (u) is defined using group jump patterns fghslot(ns), fghPRB(k) and fghsymbol(l), and a sequence shift pattern (fss).

[00135] The group jump pattern fghsymbol(l) contains symbol indices (e.g., 0 to 13). Note that the equation for the group number of a predetermined sequence is not limited to equation 9 above. A configuration that does not include some of the group jump pattern parameters (e.g., fghPRB(k) and / or fghslot(ns)) can be used. Alternatively, a configuration to include other parameters can be used.

[00136] By selecting the group number (u) taking into account the symbols in which PUCCH, PUSCH or DMRS is allocated (for example, the top symbol index), the predetermined sequence can be randomized among symbols.

[00137] If a predetermined sequence is used per slot (for example, if frequency hopping is disabled in the first aspect or second aspect), the group number (predetermined sequence) that is calculated from the symbol index allocated at the top can be used regardless of whether frequency hopping is used or not. However, when a plurality of (for example, two) predetermined sequences is used for each slot, a plurality of group numbers (sequences) Petition 870250092937, dated 10 / 10 / 2025, page 48 / 94 37 / 79 predetermined) which is calculated, each one, from the symbol index allocated at the top in each frequency hop can be used.

[00138] A configuration can be employed in the present invention whereby some or all of the group hopping patterns fghslot(ns), fghPRB(k), and fghsymbol(l) can be enabled or disabled based on base station reports. Alternatively, a configuration can be adopted whereby a predetermined group hopping pattern (e.g., fghsymbol(l)) is used independently of base station reports. More specifically, a mathematical formula can be used in the present invention that adds the symbol index (group hopping pattern fghsymbol(l)) to the slot index and PRB index in equations 2, 4, 6, and 7, which were shown in sequence selection method 1.

[00139] Figure 11A shows examples of group numbers (u) that correspond to individual radio features in the case of group hopping patterns fghslot(ns) and fghsymbol(l) being used (i.e., fghslot(ns) and fghsymbol(l) are enabled) and fghPRB(k) not being used (i.e., fghPRB(k) is disabled). In the present invention, the same group number is assigned to each PRB in symbols in each slot. In this case, the group number can be randomized at least between slots and between symbols.

[00140] Figure 11B shows examples of group numbers (u) that correspond to individual radio features when group hopping patterns fghslot(ns), fghsymbol(l), and fghPRB(k) are used (i.e., fghslot(ns), fghsymbol(l), and fghPRB(k) are enabled). In this case, the group number is randomized between slots, between symbols, and between PRBs. Consequently, it is possible to effectively reduce interference with neighboring cells.

[00141] The UE may use the group number (predetermined sequence index) that corresponds to the top symbol (and to the PRB with the index Petition 870250092937, dated 10 / 10 / 2025, page 49 / 94 38 / 79 minimum), in the field where PUCCH, PUSCH or DMRS is allocated.

[00142] For example, the case is provided where a PUCCH to which frequency hopping is not applied is allocated (see Figure 12A). Note that Figure 12A shows a case where a long PUCCH is allocated for the duration from the third symbol from the beginning of a predetermined slot to the last symbol (i.e., a duration of twelve symbols) and a case where a short PUCCH is allocated for the duration of two symbols from the end of another slot.

[00143] In Figure 12A, the group number corresponding to the top symbol in the field where the long PUCCH is allocated is #12. The UE uses a (one) predetermined sequence that is selected based on this group number #12 to transmit the long PUCCH. Furthermore, in Figure 12A, the group number corresponding to the first symbol in the field where the short PUCCH is allocated and which corresponds to the PRB with the minimum index is #14. The UE uses a (one) predetermined sequence that is selected based on this group number #14 to transmit the short PUCCH.

[00144] In this way, a predetermined sequence is selected based on the index of a predetermined symbol (e.g., the top symbol) where a signal and / or channel are allocated, so that the same sequence can be applied to the signal and / or channel. In this way, time-domain OCCs can be applied.

[00145] For example, in Figure 12A, the same predetermined sequence (in the present invention, a sequence determined from group number #12) is applied to a short two-symbol PUCCH. Thus, a time-domain OCC (e.g., OCC length = 2) can be applied to the predetermined sequence of the short PUCCH, so that the UE multiplexing capacity can be increased.

[00146] Furthermore, a case is foreseen in which a PUCCH to which I jump from Petition 870250092937, dated 10 / 10 / 2025, p. 50 / 94 39 / 79 frequency is applied and allocated (see Figure 12B). Note that Figure 12B shows a case where the first half of a frequency hopping is allocated for the duration from the third symbol of the start of a predetermined slot to the eighth symbol (a duration of six symbols). Furthermore, a case is shown in the present invention where the second half of the frequency hopping is allocated for the duration (six symbols) from the ninth symbol of the start of the predetermined slot to the fourteenth symbol.

[00147] Furthermore, Figure 12B shows a case where the first half of a frequency hop in the short PUCCH is allocated to the second symbol from the end of another slot, and where the second half of the frequency hop of the short PUCCH is allocated to the first symbol from the end of another slot.

[00148] In this case, the group number that corresponds to the top symbol in the first half of the frequency hopping in the long PUCCH is #22, and the group number that corresponds to the top symbol in the second half is #9. Therefore, the UE calculates a plurality of (two) candidates for a predetermined sequence that is selected, each one, based on group numbers #22 and #9, and the UE uses one or both of the predetermined sequence candidates depending on the number of sequences to actually be used in the slot.

[00149] Furthermore, the group number that corresponds to the top symbol in the first half of the short PUCCH frequency hopping and that corresponds to the minimum index PRB is #11, and the group number of the second half is #22. Therefore, the UE calculates a plurality of (two) candidates for each predetermined sequence that is selected based on these group numbers #11 and #22, and uses one or both of the predetermined sequence candidates depending on the number of sequences to actually be used in the slot. (Fourth Aspect)

[00150] According to a fourth aspect of the present invention, a Petition 870250092937, dated 10 / 10 / 2025, p. 51 / 94 40 / 79 configuration in which at least one symbol index (symbol-level CS jump) and / or one frequency feature index (frequency-level CS jump) are applied to a cyclic shift (CS) that is applied to a predetermined sequence. Note that the fourth aspect can be used, appropriately, for predetermined sequences in the first to third aspects described above.

[00151] The UE selects a cyclic shift (CS) to apply to a predetermined sequence using at least one of the symbol index and the frequency feature index. For example, the UE selects the CS index based on slot-level and symbol-level hopping (a slot index and a symbol index). Alternatively, the UE can select the CS index based on hopping (frequency feature index) at a frequency feature level (PRB and / or RE), in addition to slot-level and symbol-level hopping.

[00152] Examples of a case where CS hopping is performed at a slot level and a symbol level (CS hopping configuration 1) and a case where CS hopping is performed at a slot level, a symbol level, and a PRB level (CS hopping configuration 2) will be described below. Note that CS, according to the fourth aspect, can be applied to predetermined PUCCH formats. For example, in each symbol, the cyclic shift described below is applied as a cyclic shift for base sequences in at least one of PUCCH formats 0, 1, 3, and 4. Note that PUCCH formats 3 and 4 can be applied at least to DMRS symbols. <Configuração de Salto de CS 1>

[00153] In the CS 1 jump configuration, the CS index jumps one slot level and one symbol level. For example, UE uses the following equations 10 to select the CS index (α(ns,l)) to apply to a predetermined sequence. Note that equations 10 are used to select the Petition 870250092937, dated 10 / 10 / 2025, page 52 / 94 41 / 79 CS index which corresponds to slot #nse symbol #1.

[00154] n ctlula(ns,0 = Σ ^célula-ir(7célula . mULc (Z^símb 1=0 •ns +Zcell · i + Q · 2 n csCz, i) = [ncell(ns, i) + n'(ns)]modtfsRBa(ns>1) = 2π· ncs(ns, ly / NRB (Equations 10)

[00155] In the present invention, nCScell(ns,l) is a CS jump pattern that is common to cells (e.g., common to predetermined UE groups). Zcell can be a value that is defined in the specification in advance (e.g., the number of scrambling codes) or it can be a value that is reported from the base station to the UE. As an example, Zcell=20 can be configured. Obviously, the value of Zcell is not limited to the same. Furthermore, Zcell can assume different values ​​per group jump, or it can assume a common value.

[00156] n'(ns) is a value that is configured in advance (for example, the initial cyclic offset value). For example, n'(ns) can be a value that is explicitly reported from a PUCCH feature set that is configured through a combination of RRC and DCI, a value that is selected based on the control channel element (CCE) index of a downlink control channel (PDCCH), or a value that is selected based on the PRB and / or RE index of a downlink shared channel (PDSCH).

[00157] NSCRB corresponds to the number of subcarriers (or REs) per PRB, and, for example, NSCRB=12 holds. Nsymbol is the number of UL durations (the number of UL symbols) or slots.

[00158] Furthermore, c(i) is a pseudorandom sequence and is defined in the specification in advance using predetermined parameters. Petition 870250092937, dated 10 / 10 / 2025, page 53 / 94 42 / 79 The generation of pseudo-random sequences is initialized by Cjnjc. For example, cinicC can be determined based on a configurable ID (cellNID). A virtual cell ID or cell ID can be used for cellNID, and cinic=cellNID is also possible. c(i) can be configured to be initialized (or reset) using cinic for each predetermined duration (e.g., every 10 ms).

[00159] The CS index (e.g., α(ns,l)) that is actually used by the UE can be determined based on a CS index (n'(ns)) that is set up based on a predetermined method, and a common cell CS jump pattern (nCScell(ns,l)).

[00160] In the CS 1 jump configuration, the slot index (ns) and the symbol index (l) are included in equations 10. Therefore, the CS index jumps by one slot level and by one symbol level.

[00161] Figure 13 shows examples of CS indices that correspond to individual radio features when the CS index jumps at a slot level and at a symbol level. In this case, the CS index is randomized between slots and between symbols. Consequently, it is possible to effectively reduce interference with neighboring cells.

[00162] Furthermore, the UE can use the CS index that corresponds to the first symbol (and to the PRB with the minimum index) in the field where the PUCCH, PUSCH, or DMRS is allocated. For example, Figure 13 shows a case where a PUCCH (short PUCCH) to which frequency hopping is not applied is allocated. Figure 13 shows a case where a short PUCCH is allocated for the duration of two symbols from the end of a predetermined slot.

[00163] More specifically, the CS index that corresponds to the first symbol in the field where the short PUCCH is allocated and that corresponds to the PRB with the minimum index is #10. In this case, the UE can apply CS index 10 to a predetermined sequence. For example, in the case of the short PUCCH, Petition 870250092937, dated 10 / 10 / 2025, page 54 / 94 43 / 79 shown in Figure 12A, to be used, the UE can apply CS index #10 to the base sequence obtained based on group number #14. Note that, for a long PUCCH, the CS index can be selected and used in the same way.

[00164] Alternatively, the UE can use a different CS index for each symbol in the field where PUCCH, PUSCH, or DMRS is allocated. For example, the UE can use the CS index that corresponds to the minimum index PRB on each symbol where PUCCH is allocated. For example, in Figure 13, CS index #10 is used on the second symbol from the end, and CS index #5 is used on the first symbol from the end. Even when variable CS indices are used between symbols, if the sequences are the same, time-domain OCCs can be applied. Interference between symbols can be randomized and reduced by using different CS indices between symbols. It is observed that, for a long PUCCH, the CS index can be selected and used in the same way. <Configuração de Salto de CS 2>

[00165] In the CS 2 hopping configuration, the CS index jumps by one slot level, one symbol level, and one frequency feature level (PRB and / or RE). For example, UE uses the following equations 11 to select the CS index (α (ns,l,k)) to apply to a predetermined sequence. Note that equations 11 are used to select the CS index that corresponds to slot #ns, symbol #1, minimum frequency feature index #k (the lowest PRB and / or RE index) where PUCCH and / or PUSCH are allocated.

[00166] __^cell-i ncilula(ns, l,k) = \ c(Zcel1· NRB· A^b · ns + Zcell· JVRB· l + Zcell+ · k + Q · 2i Za=0 ncs(ns, l, k) = [n£|lula(ns, l, k) + n'(ns)]mod / VRBa(ns, l, k) = 2π · ncs(ns, l, k) / / VRB(Equations 11) Petition 870250092937, dated 10 / 10 / 2025, page 55 / 94 44 / 79

[00167] In the present invention, NRB is the number of PRBs and / or REs in a predetermined bandwidth (e.g., cell bandwidth or bandwidth configured for the UE). The other parameters (Zcell and others) are the same as those in equations 10.

[00168] In equations 11, k, which represents the frequency feature index (e.g., the PRB index), is added when compared to equations 10. That is, according to the CS 2 jump configuration, the slot index (ns), the symbol index (l), and the frequency feature index (k) are included in equations 11. Thus, the CS index jumps by one slot level, one symbol level, and one frequency feature level.

[00169] Figure 14 shows examples of CS indices that correspond to individual radio features when the CS index jumps at a slot level, a symbol level, and a frequency feature level. In this case, the CS index is randomized between slots, between symbols, and between PRBs. Consequently, it is possible to effectively reduce interference with neighboring cells.

[00170] Furthermore, the UE can use the CS index that corresponds to the first symbol (and to the PRB with the minimum index) in the field where the PUCCH, PUSCH, or DMRS is allocated. For example, Figure 14 shows a case where a PUCCH (short PUCCH) to which frequency hopping is not applied is allocated. Figure 14 shows a case where a short PUCCH is allocated for the duration of two symbols from the end of a predetermined slot.

[00171] More specifically, the CS index that corresponds to the first symbol in the field where the short PUCCH is allocated and that corresponds to the PRB with the minimum index is #2. In this case, the UE can apply CS index #2 to the predetermined sequence. For example, if the short PUCCH shown in Figure 12A is used, the UE can apply CS index #2 to the base sequence obtained based on group number #14. Note that, for a PUCCH Petition 870250092937, dated 10 / 10 / 2025, page 56 / 94 45 / 79 long, the CS index can be selected and used in the same way.

[00172] Alternatively, the UE can use a different CS index for each symbol in the field where the PUCCH, PUSCH, or DMRS is allocated. For example, the UE can use the CS index that corresponds to the minimum index PRB on each symbol where the PUCCH is allocated. For example, in Figure 14, CS index #2 is used on the second symbol from the end, and CS index #1 is used on the first symbol from the end. Even when variable CS indices are used between symbols, if the sequences are the same, time-domain OCCs can be applied. Interference between symbols can be randomized and reduced by using different CS indices between symbols. Note that for a long PUCCH, the CS index can be selected and used in the same way. <Variação>

[00173] Regarding sequence hopping (group hopping) described in the third aspect, a configuration can be employed in which whether CS hopping is used or not (enabled or disabled) can be configured based on base station reports.

[00174] Furthermore, the base station can configure (enable or disable) sequence hopping and CS hopping in the UE simultaneously, or configure them separately (independently). For example, the base station configures sequence hopping and CS hopping enabled or disabled in the UE collectively using upper-layer signaling. In this case, it is possible to reduce the increase in the number of bits required to send a report.

[00175] Alternatively, the base station can configure sequence hopping and CS hopping enabled or disabled in the UE separately, using bit fields where upper layer signaling varies (or Petition 870250092937, dated 10 / 10 / 2025, page 57 / 94 46 / 79 with the use of variable upper layer signaling). In this case, the base station can flexibly control whether or not to configure sequence hopping and CS hopping. (Radio Communication System)

[00176] Next, the structure of a radio communication system, according to an embodiment of the present invention, will be described below. In this radio communication system, communication is carried out using one or a combination of the radio communication methods according to the embodiments contained in this document of the present invention.

[00177] Figure 15 is a diagram to show an example of a schematic structure of a radiocommunication system, according to the present embodiment. A radiocommunication system 1 may adopt carrier aggregation (CA) and / or dual connectivity (DC) to group a plurality of fundamental frequency blocks (component carriers) into one, wherein the LTE system bandwidth (e.g., 20 MHz) constitutes a unit.

[00178] It is observed that radiocommunication system 1 can be called “LTE (Long Term Evolution)”, “LTE-A (LTE-Advanced)”, “LTE-B (LTE-Beyond)”, “SUPER 3G”, “IMT-Advanced”, “4G (4th generation mobile communication system)”, “5G (5th generation mobile communication system)”, “NR (New Radio)”, “FRA (Future Radio Access)”, “New-RAT (Radio Access Technology)” and so on, or it can be seen as a system to implement the same.

[00179] The radio communication system 1 includes a base radio station 11 that forms a macrocell C1 covering a relatively wide area, and the base radio stations 12 (12a to 12c) that are placed within the macrocell C1 and that form smaller cells C2, which are narrower than Petition 870250092937, dated 10 / 10 / 2025, page 58 / 94 47 / 79 that macrocell C1. Additionally, user terminals 20 are placed in macrocell C1 and in each small cell C2. The arrangement, number, and so on of cells and user terminals 20 are not limited to those illustrated in the drawings.

[00180] User terminals 20 can connect to both base radio station 11 and base radio stations 12. User terminals 20 can use macrocell C1 and small cell C2 simultaneously via AC or DC. Furthermore, user terminals 20 can apply AC or DC using a plurality of cells (CCs) (e.g., five or fewer CCs or six or more CCs).

[00181] Between user terminals 20 and base radio station 11, communication can be carried out using a carrier with a relatively low frequency band (e.g., 2 GHz) and a narrow bandwidth (referred to as an “existing carrier”, a “legacy carrier”, and so on). However, between user terminals 20 and base radio stations 12, a carrier with a relatively high frequency band (e.g., 3.5 GHz, 5 GHz, and so on) and a wide bandwidth can be used, or the same carrier as that used at base radio station 11 can be used. Note that the frequency band structure for use at each base radio station is by no means limited to these.

[00182] A structure may be employed in the present invention whereby a wired connection (e.g., means conforming to CPRI (Common Public Radio Interface), such as fiber optics, the X2 interface, and so forth) or a wireless connection is established between base radio station 11 and base radio station 12 (or between 2 base radio stations 12).

[00183] Base radio station 11 and base radio stations 12 are each connected to the top station unit 30, and are connected to a network. Petition 870250092937, dated 10 / 10 / 2025, page 59 / 94 48 / 79 core 40 via the upper station device 30. Note that the upper station device 30 may be, for example, an access gateway device, a radio network controller (RNC), a mobility management entity (MME), and so on, but is by no means limited to these. Additionally, each base radio station 12 may be connected to the upper station device 30 via the base radio station 11.

[00184] Note that base radio station 11 is a base radio station that has relatively wide coverage, and may be referred to as a “macro base station”, a “central node”, an “eNB (eNodeB)”, a “transmission / reception point”, and so on. Additionally, base radio stations 12 are base radio stations that have local coverage, and may be referred to as “small base stations”, “micro base stations”, “pico base stations”, “femto base stations”, “HeNBs (Domestic eNodeBs)”, “RRHs (Remote Radio Centers)”, “transmission / reception points”, and so on. Hereafter, base radio stations 11 and 12 will be collectively referred to as “base radio stations 10”, unless otherwise specified.

[00185] User terminals 20 are terminals to support various communication schemes, such as LTE, LTE-A and so on, and can be either mobile communication terminals (mobile stations) or stationary communication terminals (fixed stations).

[00186] In radio communication system 1, regarding radio access schemes, orthogonal frequency division multiple access (OFDMA) is applied to the downlink, and single carrier frequency division multiple access (SC-FDMA) and / or OFDMA are applied to the uplink.

[00187] OFDMA is a multi-carrier communication scheme for achieving communication by dividing a frequency bandwidth into a plurality of narrow frequency bandwidths (subcarriers) and Petition 870250092937, dated 10 / 10 / 2025, pp. 60 / 94 49 / 79 mapping data to each subcarrier. SC-FDMA is a single-carrier communication scheme to mitigate interference between terminals by dividing the system bandwidth into bands formed with one or more contiguous resource blocks per terminal, and allowing a plurality of terminals to use mutually different bands. Note that uplink and downlink radio access schemes are not limited to combinations thereof, and other radio access schemes may also be used.

[00188] In radio communication system 1, a shared downlink channel (PDSCH (Physical Downlink Shared Channel)), which is used by each user terminal 20 in a shared mode, a broadcast channel (PBCH (Physical Broadcast Channel)), downlink L1 / L2 control channels, and so on are used as downlink channels. User data, upper-layer control information, and SIBs (System Information Blocks) are communicated on the PDSCH. Additionally, the MIB (Master Information Block) is communicated on the PBCH.

[00189] Downlink L1 / L2 control channels include a PDCCH (Physical Downlink Control Channel), an EPDCCH (Enhanced Physical Downlink Control Channel), a PCFICH (Physical Control Format Indicator Channel), a PHICH (Physical Hybrid ARQ Indicator Channel), and so on. Downlink control information (DCI), including PDSCH and / or PUSCH scheduling information, and so on, is communicated by the PDCCH.

[00190] Note that scheduling information can be reported using DCIs. For example, DCIs for scheduling DL data reception can be called “DL assignment” and DCIs for scheduling Petition 870250092937, dated 10 / 10 / 2025, pp. 61 / 94 50 / 79 data transmission from UL can be referred to as a "UL grant".

[00191] The number of OFDM symbols to use for PDCCH is communicated by PCFICH. HARQ (Hybrid Automatic Repeat Request) delivery confirmation information (also referred to, for example, as “retransmission control information”, “HARQ-ACKs”, “ACK / NACKs”, etc.) in response to PUSCH is transmitted by PHICH. EPDCCH is frequency-division multiplexed with PDSCH (downlink shared data channel) and used to communicate DCI and so on, like PDCCH.

[00192] In radio communication system 1, a shared uplink channel (PUSCH (Physical Uplink Shared Channel)), which is used by each user terminal 20 in a shared manner, an uplink control channel (PUCCH (Physical Uplink Control Channel)), a random access channel (PRACH (Physical Random Access Channel)), and so on are used as uplink channels. User data, upper-layer control information, and so on are communicated via the PUSCH. Additionally, downlink radio quality information (CQI (Channel Quality Indicator)), delivery confirmation information, escalation requests (SRs), and so on are communicated via the PUCCH. Random access preambles for establishing connections with cells are communicated via the PRACH.

[00193] In radio communication systems 1, cell-specific reference signals (CRSs), channel state information reference signals (CSI-RSs), demodulation reference signals (DMRSs), positioning reference signals (PRSs), and so on are communicated as downlink reference signals. Additionally, in the system of Petition 870250092937, dated 10 / 10 / 2025, pp. 62 / 94 51 / 79 radiocommunication 1, measurement reference signals (SRSs (Survey Reference Signals)), demodulation reference signals (DMRSs) and so on are communicated as uplink reference signals. Note that DMRSs may be referred to as user terminal-specific reference signals (UE-Specific Reference Signals). Additionally, the reference signals to be communicated are by no means limited to these. <Estação Rádio Base>

[00194] Figure 16 is a diagram to show an example of a general structure of a base radio station according to an embodiment of the present invention. A base radio station 10 has a plurality of transmit / receive antennas 101, amplification sections 102, transmit / receive sections 103, a baseband signal processing section 104, a call processing section 105 and a communication path interface 106. It is noted that one or more transmit / receive antennas 101, amplification sections 102 and transmit / receive sections 103 may be provided.

[00195] User data to be transmitted from base radio station 10 to a user terminal 20 on the downlink is entered from the upstation device 30 to the baseband signal processing section 104, via the communication path interface 106.

[00196] In the baseband 104 signal processing section, user data undergoes transmission processes, which include a PDCP (Packet Data Convergence Protocol) layer process, splitting and coupling of user data, RLC (Radio Link Control) layer transmission processes, such as RLC retransmission control, MAC retransmission control (Access Control to Petition 870250092937, dated 10 / 10 / 2025, pp. 63 / 94 52 / 79 The process involves (e.g., a HARQ (Hybrid Automatic Repeat Request) transmission process), scheduling, transport format selection, channel coding, an inverse fast Fourier transform (IFFT) process, and a pre-coding process, and the result is forwarded to each transmit / receive section 103. Furthermore, downlink control signals are also subjected to transmission processes, such as channel coding and an inverse fast Fourier transform, and forwarded to the transmit / receive sections 103.

[00197] Baseband signals that are pre-coded and emitted from the baseband signal processing section 104 in a one-way antenna manner are converted into a radio frequency band in the transmission / reception sections 103 and then transmitted. The radio frequency signals that have undergone frequency conversion in the transmission / reception sections 103 are amplified in the amplification sections 102 and transmitted from the transmission / reception antennas 101. The transmission / reception sections 103 may consist of transmitters / receivers, transmission / reception circuits, or transmission / reception apparatus, which may be described based on a general understanding of the technical field to which the present invention relates. It is noted that a transmission / reception section 103 may be structured as a transmission / reception section in one entity, or it may consist of a transmission section and a reception section.

[00198] However, regarding the uplink signals, the radio frequency signals received at the transmit / receive antennas 101 are each amplified in the amplification sections 102. The transmit / receive sections 103 receive the uplink signals amplified in the amplification sections 102. The received signals are converted into the signal of Petition 870250092937, dated 10 / 10 / 2025, pp. 64 / 94 53 / 79 baseband via frequency conversion in the transmit / receive sections 103 and transmitted to the baseband signal processing section 104.

[00199] In the baseband signal processing section 104, user data included in the uplink signals is subjected to a Fast Fourier Transform (FFT) process, a Discrete Inverse Fourier Transform (IDFT) process, error correction decoding, a MAC retransmission control reception process, and RLC layer and PDCP layer reception processes, and forwarded to the higher station device 30 via the communication path interface 106. The call processing section 105 performs call processing (such as preparation and release of communication channels), manages the state of base radio stations 10, and manages radio resources.

[00200] The communication path interface section 106 transmits and receives signals to and from the higher station apparatus 30 via a predetermined interface. Additionally, the communication path interface 106 can transmit and receive signals (backhaul signaling) with other base radio stations 10 via a base station inter-interface (which is, for example, fiber optic that conforms to CPRI (Common Public Radio Interface), the X2 interface, etc.).

[00201] In addition, the transmit / receive sections 103 receive the demodulation reference signal for a UL channel and / or a PUCCH, to which a predetermined sequence is applied. Furthermore, the transmit / receive sections 103 command whether or not to use (enable or disable) a predetermined group hopping pattern via upper-layer signaling (e.g., cell-specific and / or UE-specific RRC signaling). Petition 870250092937, dated 10 / 10 / 2025, pp. 65 / 94 54 / 79 (RRC parameter), broadcast signals, etc.). In addition, the transmit / receive sections 103 can control whether or not to use (enable or disable) CS hopping (CS index hopping) via upper layer signaling.

[00202] Figure 17 is a diagram to show an example of a functional structure of a base radio station, according to the present embodiment. Note that, although this example essentially shows functional blocks that refer to characteristic parts of the present embodiment, base radio station 10 has other functional blocks that are also necessary for radiocommunication.

[00203] The baseband signal processing section 104 has at least one control (scheduler) section 301, a transmission signal generation section 302, a mapping section 303, a received signal processing section 304, and a measurement section 305. Note that these configurations must be included only in the baseband radio station 10, and some or all of these configurations may not be included in the baseband signal processing section 104.

[00204] The control section (scheduler) 301 controls the entire base radio station 10. The control section 301 may consist of a controller, a control circuit or a control apparatus which may be described based on a general understanding of the technical field to which the present invention relates.

[00205] Control section 301, for example, controls signal generation in the transmission signal generation section 302, signal allocation by the mapping section 303, and so on. Furthermore, control section 301 controls signal reception processes in the received signal processing section 304, signal measurements in the measurement section 305, and so on.

[00206] Control section 301 controls scheduling (e.g., Petition 870250092937, dated 10 / 10 / 2025, pp. 66 / 94 55 / 79 resource allocation) of system information, downlink data signals (e.g., signals transmitted on the PDSCH) and downlink control signals (e.g., signals transmitted on the PDCCH and / or EPDCCH, such as delivery confirmation information). Control section 301 controls the generation of downlink control signals, downlink data signals, and so on, based on the decision results of whether retransmission control is required for uplink data signals, and so on. Additionally, control section 301 controls the scheduling of synchronization signals (e.g., PSS (Primary Synchronization Signal) / SSS (Secondary Synchronization Signal)), downlink reference signals (e.g., CRS, CSI-RS, DM-RS, etc.) and so on.

[00207] Control section 301 also controls the scheduling of uplink data signals (e.g., signals transmitted on the PUSCH), uplink control signals (e.g., signals transmitted on the PUCCH and / or PUSCH, such as delivery confirmation information), random access preambles (e.g., signals transmitted on the PRACH), uplink reference signals, and / or other signals.

[00208] In addition, control section 301 controls whether or not to use (enable or disable) a predetermined group jump pattern. Furthermore, control section 301 can control whether or not to use (enable or disable) CS jump (CS index jump).

[00209] The transmission signal generation section 302 generates downlink signals (downlink control signals, downlink data signals, downlink reference signals, and so on) based on commands from the control section 301, and sends these signals to the mapping section 303. The signal generation section of Petition 870250092937, dated 10 / 10 / 2025, pp. 67 / 94 56 / 79 transmission 302 may consist of a signal generator, a signal generation circuit or a signal generation apparatus which may be described based on a general understanding of the technical field to which the present invention relates.

[00210] For example, the signal generation section of transmission 302 generates DL assignments, which report downlink data allocation information, and / or UL grants, which report uplink data allocation information, based on commands from control section 301. DL assignments and UL grants are both DCI, and follow the DCI format. Additionally, the downlink data signals are subjected to the encoding process, the modulation process and so on, using encoding rates and modulation schemes that are determined based on, for example, channel state information (CSI) reported from each user terminal 20.

[00211] The mapping section 303 maps the downlink signals generated in the transmission signal generation section 302 to predetermined radio resources based on commands from the control section 301, and transmits them to the transmission / reception sections 103. The mapping section 303 may consist of a mapper, a mapping circuit or a mapping apparatus which may be described based on a general understanding of the technical field to which the present invention relates.

[00212] The received signal processing section 304 performs reception processes (e.g., demapping, demodulation, decoding, and so on) of received signals that are entered from the transmission / reception sections 103. In the present invention, the received signals include, for example, uplink signals transmitted from the user terminals 20 (uplink control signals, uplink data signals, uplink reference signals, etc.). For the section of Petition 870250092937, dated 10 / 10 / 2025, pp. 68 / 94 57 / 79 received signal processing 304, a signal processor, a signal processing circuit or signal processing apparatus, which can be described based on a general understanding of the technical field to which the present invention relates, can be used.

[00213] The received signal processing section 304 transmits the decoded information, acquired through the reception processes, to the control section 301. For example, when a PUCCH containing a HARQ-ACK is received, the received signal processing section 304 transmits this HARQ-ACK to the control section 301. Additionally, the received signal processing section 304 transmits the received signals, the signals after the reception processes, and so on, to the measurement section 305.

[00214] Measurement section 305 conducts measurements in relation to the received signals. Measurement section 305 may consist of a meter, a measurement circuit or measuring apparatus which may be described based on a general understanding of the technical field to which the present invention relates.

[00215] For example, measurement section 305 can perform RRM (Radio Resource Management) measurements, CSI (Channel State Information) measurements, and so on, based on received signals. Measurement section 305 can measure received power (e.g., RSRP (Reference Signal Received Power)), received quality (e.g., RSRQ (Reference Signal Received Quality), SINR (Signal-to-Noise Ratio), etc.), signal strength (e.g., RSSI (Received Signal Strength Indicator)), transmission path information (e.g., CSI), and so on. Measurement results can be output to control section 301. (User Terminal)

[00216] Figure 18 is a diagram to show an example of a Petition 870250092937, dated 10 / 10 / 2025, pp. 69 / 94 58 / 79 general structure of a user terminal, according to an embodiment of the present invention. A user terminal 20 has a plurality of transmit / receive antennas 201, amplification sections 202, transmit / receive sections 203, a baseband signal processing section 204 and an application section 205. It is noted that one or more transmit / receive antennas 201, amplification sections 202 and transmit / receive sections 203 may be provided.

[00217] The radio frequency signals received at the transmit / receive antennas 201 are amplified in the amplification sections 202. The transmit / receive sections 203 receive the downlink signals amplified in the amplification sections 202. The received signals undergo frequency conversion and are converted into the baseband signal in the transmit / receive sections 203, and transmitted to the baseband signal processing section 204. A transmit / receive section 203 may consist of a transmitter / receiver, a transmit / receive circuit, or a transmit / receive apparatus, which may be described based on a general understanding of the technical field to which the present invention relates. It is noted that a transmit / receive section 203 may be structured as a transmit / receive section in one entity, or it may consist of a transmit section and a receive section.

[00218] The baseband signal processing section 204 performs reception processes for the incoming baseband signal, including an FFT process, error correction decoding, a retransmission control reception process, and so on. Downlink user data is forwarded to the application section 205. The application section 205 performs processes related to the upper layers above the physical layer and the MAC layer, and so on. Furthermore, in the data of Petition 870250092937, dated 10 / 10 / 2025, pp. 70 / 94 59 / 79 downlink, broadcast information can also be routed to application section 205.

[00219] However, uplink user data is entered from application section 205 to baseband signal processing section 204. Baseband signal processing section 204 performs a retransmission control transmission process (e.g., a HARQ transmission process), channel coding, pre-coding, a discrete Fourier transform (DFT) process, an IFFT process, and so on, and the result is forwarded to the transmit / receive section 203. Baseband signals emitted from baseband signal processing section 204 are converted to a radio frequency band in transmit / receive sections 203 and transmitted. Radio frequency signals that undergo frequency conversion in transmit / receive sections 203 are amplified in amplification sections 202 and transmitted from transmit / receive antennas 201.

[00220] In addition, the transmit / receive sections 203 transmit a demodulation reference signal and / or a PUCCH, to which a predetermined sequence is applied. Furthermore, the transmit / receive sections 203 receive information about whether a predetermined group hopping pattern is used (enabled or disabled) via upper-layer signaling (e.g., cell-specific and / or UE-specific RRC signaling (RRC parameter), broadcast signals, etc.). Moreover, the transmit / receive sections 203 may receive information regarding whether CS hopping (CS index hopping) is used (enabled or disabled) via upper-layer signaling.

[00221] Figure 19 is a diagram to show an example of a Petition 870250092937, dated 10 / 10 / 2025, pp. 71 / 94 60 / 79 functional structure of a user terminal, according to the present embodiment. It is observed that, although this example essentially shows functional blocks that belong to characteristic parts of the present embodiment, the user terminal 20 has other functional blocks that are also necessary for radiocommunication.

[00222] The baseband signal processing section 204, provided in the user terminal 20, has at least one control section 401, one transmission signal generation section 402, one mapping section 403, one received signal processing section 404, and one measurement section 405. Note that these configurations may be included in the user terminal 20, and some or all of the configurations need not be included in the baseband signal processing section 204.

[00223] Control section 401 controls the entire user terminal 20. Control section 401 may consist of a controller, a control circuit or a control device which may be described based on a general understanding of the technical field to which the present invention relates.

[00224] Control section 401, for example, controls signal generation in the transmission signal generation section 402, signal allocation by the mapping section 403, and so on. Furthermore, control section 401 controls signal reception processes in the received signal processing section 404, signal measurements in the measurement section 405, and so on.

[00225] Control section 401 acquires downlink control signals and downlink data signals transmitted from base radio station 10, via received signal processing section 404. Control section 401 controls the generation of uplink control signals and / or uplink data signals based on the decision results of whether or not retransmission control is required for the signals. Petition 870250092937, dated 10 / 10 / 2025, pp. 72 / 94 61 / 79 downlink control and / or downlink data signals, and so on.

[00226] Control section 401 also controls a predetermined sequence (e.g., the number of predetermined sequences and / or the method of generating predetermined sequences) for use in a predetermined slot, based on whether or not frequency hopping is used in a predetermined slot (see Figure 5). Alternatively, control section 401 commonly controls a predetermined sequence (e.g., the number of predetermined sequences and / or the method of generating predetermined sequences) for use in a predetermined slot regardless of whether or not frequency hopping is used in a predetermined slot (see Figure 8).

[00227] In addition, control section 401 can select a predetermined sequence to use from a plurality of predetermined sequences that is obtained in each slot based at least on the frequency hopping index. Control section 401 can also select a predetermined sequence based at least on the index of a predetermined symbol in which a demodulation reference signal and / or an uplink control channel are allocated. Furthermore, control section 401 can select a predetermined sequence based at least on the index of a frequency feature in which a demodulation reference signal and / or an uplink control channel are allocated.

[00228] The transmission signal generation section 402 generates uplink signals (uplink control signals, uplink data signals, uplink reference signals, etc.) based on commands from the control section 401, and sends these signals to the mapping section 403. The transmission signal generation section 402 can be Petition 870250092937, dated 10 / 10 / 2025, pp. 73 / 94 62 / 79 consisting of a signal generator, a signal generation circuit or signal generation apparatus which can be described based on a general understanding of the technical field to which the present invention relates.

[00229] For example, the 402 transmission signal generation section generates uplink control signals, such as delivery confirmation information, channel status information (CSI), and so on, based on commands from the 401 control section. Additionally, the 402 transmission signal generation section generates uplink data signals based on commands from the 401 control section. For example, when a UL grant is included in a downlink control signal that is reported from base station 10, the 401 control section commands the 402 transmission signal generation section to generate an uplink data signal.

[00230] Mapping section 403 maps the uplink signals generated in the transmission signal generation section 402 to radio resources based on commands from control section 401, and sends the result to transmission / reception section 203. Mapping section 403 may consist of a mapper, a mapping circuit or a mapping apparatus which may be described based on a general understanding of the technical field to which the present invention relates.

[00231] The received signal processing section 404 performs reception processes (e.g., demapping, demodulation, decoding, and so on) of received signals that are entered from the transmission / reception sections 203. In the present invention, the received signals include, for example, downlink signals (downlink control signals, downlink data signals, downlink reference signals, and so on) that are transmitted from the radio station. Petition 870250092937, dated 10 / 10 / 2025, pp. 74 / 94 63 / 79 base 10. The received signal processing section 404 may consist of a signal processor, a signal processing circuit, or a signal processing apparatus, which may be described based on a general understanding of the technical field to which the present invention relates. Additionally, the received signal processing section 404 may constitute the receiving section according to the present invention.

[00232] The received signal processing section 404 transmits the decoded information, which is acquired through the reception processes, to the control section 401. The received signal processing section 404 transmits, for example, broadcast information, system information, RRC signaling, DCI and so on, to the control section 401. In addition, the received signal processing section 404 transmits the received signals and / or the signals after the reception processes to the measurement section 405.

[00233] Measurement section 405 conducts measurements in relation to the received signals. Measurement section 405 may consist of a meter, a measurement circuit or a measuring apparatus which may be described based on a general understanding of the technical field to which the present invention relates.

[00234] For example, measurement section 405 can perform RRM measurements, CSI measurements, and so on, based on the received signals. Measurement section 405 can measure received power (e.g., RSRP), received quality (e.g., RSRQ, SINR, etc.), signal strength (e.g., RSSI), transmission path information (e.g., CSI), and so on. The measurement results can be output to control section 401. (Hardware Structure)

[00235] Note that the block diagrams that were used for Petition 870250092937, dated 10 / 10 / 2025, pp. 75 / 94 64 / 79 describing the above modalities show blocks in functional units. These functional blocks (components) can be implemented in arbitrary combinations of hardware and / or software. Furthermore, the method for implementing each functional block is not particularly limited. That is, each functional block can be understood as a piece of equipment that is aggregated physically and / or logically, or it can be understood as directly and / or indirectly connecting two or more pieces of equipment that are physically and / or logically separate (by wire or wirelessly, for example) and using these multiple pieces of equipment.

[00236] For example, the base radio station, user terminals, and so forth, according to embodiments of the present invention, can function as a computer that executes the processes of the radio communication method of the present invention. Figure 20 is a diagram to show an exemplary hardware structure of a base radio station and a user terminal, according to an embodiment of the present invention. Physically, the base radio stations 10 and user terminals 20 described above can be formed 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.

[00237] Note that in the following description, the word apparatus can be replaced by circuit, device, unit, and so on. Note that the hardware structure of a base radio station 10 and a user terminal 20 can be designed to include one or more of each apparatus shown in the drawings, or it can be designed to not include any apparatus.

[00238] For example, although only one 1001 processor is shown, Petition 870250092937, dated 10 / 10 / 2025, pp. 76 / 94 65 / 79 a plurality of processors can be provided. Furthermore, processes can be implemented with one processor, or processes can be implemented sequentially, or in different ways, on one or more processors. Note that processor 1001 can be implemented with one or more chips.

[00239] Each function of the base radio station 10 and the user terminal 20 is implemented by reading predetermined software (program) from hardware such as the processor 1001 and memory 1002, and controlling the calculations in the processor 1001, the communication in the communication device 1004, and the reading and / or writing of data in memory 1002 and storage 1003.

[00240] Processor 1001 can control the entire computer, for example, by running an operating system. Processor 1001 can be configured with a central processing unit (CPU), which includes interfaces with peripheral devices, control devices, computing devices, a register, and so on. For example, the baseband signal processing section 104 (204), the call processing section 105, and so on described above can be implemented by processor 1001.

[00241] Furthermore, processor 1001 reads programs (program codes), data, or software modules from storage 1003 and / or communication device 1004 into memory 1002, and executes various processes accordingly. Regarding programs, programs to enable computers to perform at least some of the operations described above can be used. For example, the control section 401 of user terminals 20 can be implemented by control programs stored in memory 1002 and operating on processor 1001, and other functional blocks can be implemented from Petition 870250092937, dated 10 / 10 / 2025, pp. 77 / 94 66 / 79 same way.

[00242] Memory 1002 is a computer-readable recording medium and may consist of, for example, at least one of a ROM (Read-Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable EPROM), a RAM (Random Access Memory) and / or other suitable storage media. Memory 1002 may be referred to as a register, a "cache", a "main memory (primary storage device)" and so forth. Memory 1002 may store executable programs (program codes), software modules and / or the like to implement radio communication methods, according to the embodiments of the present invention.

[00243] Storage 1003 is a computer-readable recording medium and may consist of, for example, at least one of a floppy disk, a floppy disk (trademark), a magneto-optical disk (e.g., a compact disc (CD-ROM (Compact Disc ROM) and so forth), a digital versatile disk, a Blu-ray disc (trademark)), a removable disk, a hard disk drive, a smart card, a flash memory device (e.g., a card, a stick, a key drive, etc.), a magnetic stripe, a database, a server and / or other suitable storage media. Storage 1003 may be referred to as a “secondary storage device”.

[00244] The 1004 communication device is hardware (transmission / reception device) to enable inter-computer communication using wired and / or wireless networks, and may be referred to, for example, as a “network device”, a “network controller”, a “network card”, a “communication module”, and so on. The 1004 communication device may be configured to include a high-frequency switch, a Petition 870250092937, dated 10 / 10 / 2025, pp. 78 / 94 67 / 79 duplexer, a filter, a frequency synthesizer and so forth in order to perform, for example, frequency division duplex (FDD) and / or time division duplex (TDD). For example, the transmit / receive antennas described above 101 (201), amplification sections 102 (202), transmit / receive sections 103 (203), communication path interface 106 and so forth can be implemented by the communication apparatus 1004.

[00245] Input device 1005 is an input device for receiving input from outside (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, and so on). Output device 1006 is an output device for enabling the sending of output to the outside (e.g., a display, a speaker, an LED (Light Emitting Diode) lamp, and so on). Note that input device 1005 and output device 1006 may be provided in an integrated structure (e.g., a touch-sensitive panel).

[00246] Furthermore, these device components, including the processor 1001, the memory 1002, and so on, are connected by the bus 1007 in order to communicate information. The bus 1007 can be formed with a single bus, or it can be formed with buses that vary between device components.

[00247] Additionally, the base radio station 10 and the user terminal 20 can be structured to include hardware such as a microprocessor, a digital signal processor (DSP), an ASIC (Application-Specific Integrated Circuit), a PLD (Programmable Logic Device), an FPGA (Field-Programmable Gate Array), and so on, and some or all of the functional blocks can be implemented by the hardware. For example, the processor 1001 can be implemented with at least one of these. Petition 870250092937, dated 10 / 10 / 2025, pp. 79 / 94 68 / 79 hardware parts. (Variations)

[00248] Note that the terminology used in this descriptive report and the terminology necessary to understand this descriptive report may be replaced by other terms that convey the same or similar meanings. For example, channels and / or symbols may be replaced by signals (or signaling). Additionally, signals may be messages. A reference signal may be abbreviated as an RS and may be referred to as a pilot, a pilot signal, and so on, depending on which standard applies. Furthermore, a component carrier (CC) may be referred to as a cell, a frequency carrier, a carrier frequency, and so on.

[00249] Furthermore, a radio frame can be comprised of one or more periods (frames) in the time domain. Each of the one or more periods (frames) that constitute a radio frame can be called a subframe. Furthermore, a subframe can be comprised of one or multiple slots in the time domain. A subframe can have a fixed time duration (e.g., 1 ms) independent of numerology.

[00250] Furthermore, a slot may be comprised of one or more time-domain symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbols, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols, and so on). Additionally, a slot may be a unit of time based on numerology. Furthermore, a slot may include a plurality of minislots. Each minislot may be comprised of one or more time-domain symbols. Furthermore, a minislot may be referred to as a subslot.

[00251] A radio frame, a subframe, a slot, a minislot and a Petition 870250092937, dated 10 / 10 / 2025, pages 80 / 94 69 / 79 symbol, all represent the unit of time in signal-to-signal communication. A radio frame, a subframe, a slot, a minislot, and a symbol can each be identified by other applicable names. For example, a subframe might be called a “transmission time interval (TTI),” or a plurality of consecutive subframes might be called a “TTI,” or a slot or minislot might be called a “TTI.” That is, a subframe and / or a TTI might be a subframe (1 ms) in existing LTE, might be a shorter period than 1 ms (e.g., one to thirteen symbols), or might be a longer period of time than 1 ms. Note that the unit to represent the TTI might be called a “slot,” a “minislot,” and so on, instead of a “subframe.”

[00252] In the present invention, a TTI refers to the minimum time-scaling unit in radiocommunication, for example. For instance, in LTE systems, a base radio station scales radio resources (such as frequency bandwidth and transmission power that can be used on each user terminal) to allocate to each user terminal in TTI units. Note that the definition of TTIs is not limited to this.

[00253] The TTI can be the time unit for transmitting channel-encoded data packets (transport blocks), code blocks and / or codewords, or it can be the processing unit in scheduling, link adaptation and so on. Note that when a TTI is provided, the time period (e.g., the number of symbols) in which transport blocks, code blocks and / or codewords are actually mapped may be shorter than the TTI.

[00254] Note that 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) Petition 870250092937, dated 10 / 10 / 2025, pp. 81 / 94 70 / 79 can be the minimum scheduling time unit. Furthermore, the number of slots (the number of minislots) to constitute this minimum scheduling time unit can be controlled.

[00255] A TTI that has a duration of 1 ms may be referred to as a normal TTI (TTI in LTE Rel. 8 to 12), a long TTI, a normal subframe, a long subframe, and so on. A TTI that is shorter than a normal TTI may be referred to as a shortened TTI, a short TTI, a partial TTI (or a fractional TTI), a reduced subframe, a short subframe, a minislot, a subslot, and so on.

[00256] Note that a long TTI (e.g., a normal TTI, a subframe, etc.) can be replaced by a TTI that has a time duration exceeding 1 ms, and a short TTI (e.g., a shortened TTI) can be replaced by a TTI that has a TTI duration shorter than the TTI duration of a long TTI and not less than 1 ms.

[00257] A resource block (RB) is the unit of resource allocation in the time domain and frequency domain, and may include one or a plurality of consecutive subcarriers in the frequency domain. Furthermore, an RB may include one or more symbols in the time domain, and may have a slot, a minislot, a subframe, or a TTI of length. A TTI and a subframe may each comprise one or more resource blocks. Note that one or more RBs may be referred to as a “physical resource block (PRB (Physical RB))”, a “subcarrier group (SCG)”, a “resource element group (REG)”, a “PRB pair”, a “RB pair”, and so forth.

[00258] Furthermore, a feature block can be comprised of one or more feature elements (REs). For example, an RE can be a radio feature field of a subcarrier and a symbol. Petition 870250092937, dated 10 / 10 / 2025, pp. 82 / 94 71 / 79

[00259] Note that the radio frame, subframe, slot, minislot, symbol, and so forth structures described above are only examples. For instance, the settings relating to the number of subframes included in a radio frame, the number of slots included in a subframe, 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, the symbol duration, the length of cyclic prefixes (CPs), and so forth may be modified in various ways.

[00260] Furthermore, the information and parameters described in this descriptive report may be represented in absolute values ​​or in relative values ​​in relation to predetermined values, or may be represented using other applicable information. For example, a radio feature may be specified by a predetermined index.

[00261] The names used for parameters and so forth in this descriptive report are not, in any respect, limiting. For example, since various channels (PUCCH (Physical Uplink Control Channel), PDCCH (Physical Downlink Control Channel), and so forth) and information elements may be identified by any suitable names, the various names assigned to these individual channels and information elements are not, in any way, limiting.

[00262] The information, signals and / or other elements described in this descriptive report may be represented using a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols and chips, all of which may be referred to throughout the description contained in the present invention, may be represented by voltages, currents, electromagnetic waves, particles or magnetic fields, photons or fields. Petition 870250092937, dated 10 / 10 / 2025, pp. 83 / 94 72 / 79 optical, or any combination thereof.

[00263] Furthermore, information, signals, and so on can be transmitted from upper layers to lower layers and / or from lower layers to upper layers. Information, signals, and so on can be inserted and transmitted through a plurality of network nodes.

[00264] The information, signals, and so forth, that are entered and / or emitted, can be stored in a specific location (e.g., in a memory), or can be managed in a control table. The information, signals, and so forth to be entered and / or emitted can be replaced, updated, or added to. The information, signals, and so forth that are emitted can be deleted. The information, signals, and so forth that are entered can be transmitted to other parts of the apparatus.

[00265] The information report is by no means limited to the aspects / modalities described in this descriptive report, and other methods may also be used. For example, the information report may be implemented using physical layer signaling (e.g., downlink control information (DCI), uplink control information (UCI), upper layer signaling (e.g., RRC (Radio Resource Control) signaling), broadcast information (the master information block (MIB), system information blocks (SIBs), and so on), MAC (Media Access Control) signaling, and so on), and other signals and / or combinations thereof.

[00266] It is observed that physical layer signaling can be termed L1 / L2 control information (Layer 1 / Layer 2, Layer 1 / Layer 2) (L1 / L2 control signals)”, L1 control information (signal Petition 870250092937, dated 10 / 10 / 2025, pages 84 / 94 73 / 79 of L1 control)” and so on. Additionally, RRC signaling can be called “RRC messages” and can be, for example, an RRC connection preparation message, an RRC connection reconfiguration message, and so on. Additionally, MAC signaling can be reported using, for example, MAC control elements (MAC CEs (Control Elements)).

[00267] Furthermore, the report of predetermined information (for example, the report of information for the purpose that “X maintains”) does not necessarily have to be sent explicitly, and may be sent implicitly (for example, by not reporting these parts of the information, reporting other parts of the information, and so on).

[00268] Decisions can be made on values ​​represented by a bit (0 or 1), they can be made on boolean values ​​that represent true or false, or they can be made by comparing numerical values ​​(for example, comparison with a predetermined value).

[00269] Software, referred to as “software”, “firmware”, “middleware”, “microcode” or “hardware description language” or by other names, should be interpreted broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, and so forth.

[00270] Furthermore, software, commands, information, and so on can be transmitted and received through communication media. For example, when software is transmitted from a website, a server, or other remote sources using wired technologies (coaxial cables, fiber optic cables). Petition 870250092937, dated 10 / 10 / 2025, pages 85 / 94 74 / 79 optical, twisted pair cables, digital subscriber lines (DSL) and so on) and / or wireless technologies (infrared radiation, microwaves and so on), these wired and / or wireless technologies are also included in the definition of communication media.

[00271] The terms “system” and “network”, as used in the present invention, are used interchangeably.

[00272] As used in the present invention, the terms “base station (BS)”, “radio base station”, “eNB”, “gNB”, “cell”, “sector”, “cell group”, “carrier” and “component carrier” may be used interchangeably. A base station may be referred to as a “fixed station”, “NodeB”, “eNodeB (eNB)”, “access point”, “transmission point”, “receive point”, “femto cell”, “small cell”, and so forth.

[00273] A base station may accommodate one or more (e.g., three) cells (also called sectors). When a base station accommodates a plurality of cells, the entire coverage area of ​​the base station may be partitioned into multiple smaller areas, and each smaller area may provide communication services through base station subsystems (e.g., small indoor base stations (RRHs (Remote Radio Heads))). The term "cell" or "sector" refers to part or all of the coverage area of ​​a base station and / or a base station subsystem that provides communication services within that coverage.

[00274] As used in the present invention, the terms “mobile station (MS)”, “user terminal”, “user equipment (UE)” and “terminal” may be used interchangeably. A base station may be referred to as a “fixed station”, “NodeB”, “eNodeB (eNB)”, “access point”, “transmission point”, “receive point”, “femto cell”, “small cell”, and so forth. Petition 870250092937, dated 10 / 10 / 2025, pages 86 / 94 75 / 79

[00275] A mobile station may be referred to by a person skilled in the art as a “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”, “telephone apparatus”, “user agent”, “mobile client”, “client” or some other suitable terms.

[00276] Furthermore, the base radio stations in this descriptive report can be interpreted as user terminals. For example, each aspect / embodiment of the present invention can be applied to a configuration in which communication between a base radio station and a user terminal is replaced by communication between a plurality of user terminals (D2D (Device to Device)). In this case, the user terminals 20 can have the functions of the base radio stations 10 described above. In addition, terms such as “uplink” and “downlink” can be interpreted as “side”. For example, an uplink channel can be interpreted as a side channel.

[00277] Similarly, user terminals, in this descriptive report, can be interpreted as base radio stations. In this case, base radio stations 10 can have the functions of user terminals 20 described above.

[00278] Certain actions described in this descriptive report as being performed by base stations can, in some cases, be performed by their higher-level nodes. In a network comprised of one or more network nodes with base stations, it is clear that various operations performed in order to communicate with terminals can be performed by base stations, one or more network nodes (e.g., MMEs (Mobility Management Entities)), Petition 870250092937, dated 10 / 10 / 2025, pages 87 / 94 76 / 79 S-GWs (Server Gateways) and so on may be possible, but these are not limiting factors, in addition to base stations, or combinations thereof.

[00279] The aspects / modalities illustrated in this descriptive report can be used individually or in combinations, which can be switched depending on the mode of implementation. The order of processes, sequences, flowcharts, and so forth that have been used to describe the aspects / modalities in the present invention can be rearranged provided that inconsistencies do not arise. For example, although several methods have been illustrated in this descriptive report with various step components in exemplary orders, the specific orders that are illustrated in the present invention are by no means limiting.

[00280] The aspects / modalities illustrated in this descriptive report can be applied to LTE (Long Term Evolution), LTE-A (LTE-Advanced), LTE-B (LTE-Beyond), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), FRA (Future Radio Access), Nova-RAT (Radio Access Technology), NR (New Radio), NX (New Radio Access), FX (Future Generation Radio Access), GSM (registered trademark) (Global System for Mobile Communications), CDMA 2000, UMB (Ultra Broadband Mobile), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra Broadband), Bluetooth (registered trademark), Systems that use other suitable radio communication systems and / or next-generation systems that are enhanced based on those.

[00281] The expression “based on”, as used in this descriptive report, does not mean “based solely on”, unless otherwise specified. In other words, the expression “based on” means both “based solely on” and “based at least on”. Petition 870250092937, dated 10 / 10 / 2025, pages 88 / 94 77 / 79

[00282] The reference to elements with designations such as “first”, second, and so forth, as used in the present invention, does not, in general, limit the number / quantity or order of these elements. These designations are used in the present invention for convenience, as a method of distinguishing between two or more elements. Thus, the reference to the first and second elements does not imply that only two elements can be employed, or that the first element must precede the second element in any way.

[00283] The terms judge and determine, as used in the present invention, can encompass a wide variety of actions. For example, judging and determining, as used in the present invention, can be interpreted to mean making judgments and determinations related to calculation, computation, processing, derivation, investigation, research (e.g., searching a table, a database, or some other data structure), verification, and so forth. Furthermore, judging and determining, as used in the present invention, can be interpreted to mean making judgments and determinations related to reception (e.g., receiving information), transmission (e.g., transmitting information), insertion, emission, access (e.g., accessing data in a memory), and so forth.Furthermore, judging and determining, as used in the present invention, can be interpreted to mean making judgments and determinations related to resolution, selection, choice, establishment, comparison, and so forth. In other words, judging and determining, as used in the present invention, can be interpreted to mean making judgments and determinations related to some action.

[00284] As used in the present invention, the terms connected and coupled, or any variation of these terms, mean all connections Petition 870250092937, dated 10 / 10 / 2025, pp. 89 / 94 78 / 79 or direct or indirect coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are “connected” or coupled to each other. The coupling or connection between the elements can be physical, logical, or a combination thereof. For example, connection can be interpreted as access.

[00285] As used in the present invention, when two elements are connected, these elements can be considered connected or coupled to each other using one or more electrical wires, cables and / or printed electrical connections and, as per numerous non-limiting and non-inclusive examples, using electromagnetic energy, such as electromagnetic energy having wavelengths in the radio frequency, microwave and optical regions (both visible and invisible).

[00286] In this descriptive report, the expression A and B are different can mean A and B are different from each other. Terms such as leave coupled and similar terms can also be interpreted in this way.

[00287] When terms such as include, comprise, and variations thereof are used in this descriptive report or in the claims, these terms are intended to be inclusive, in a manner similar to how the term provide is used. Furthermore, the term or, as used in this descriptive report or in the claims, is not intended to be an exclusive disjunction.

[00288] Next, although the present invention has been described in detail above, it should be evident to a person skilled in the art that the present invention is by no means limited to the embodiments described in the present invention. The present invention can be implemented with various corrections and in various modifications, without departing from the spirit and scope of the present invention as defined by the citations of the claims. Consequently, the description in the present invention is provided only for the purpose of explaining Petition 870250092937, dated 10 / 10 / 2025, pp. 90 / 94 79 / 79 examples, and should not, in any way, be interpreted as limiting the present invention in any way. Petition 870250092937, dated 10 / 10 / 2025, pp. 91 / 94

Claims

1 / 2 CLAIMS 1. User terminal (20) characterized in that it comprises: a transmission section (203) configured to transmit an uplink control channel to which a given sequence corresponding to a group number is applied; and a control section (401) configured to determine the group number based on whether the uplink control channel is subject to frequency hopping or not, wherein the control section (401) is configured to determine the number of group numbers to apply in a given slot based on whether frequency hopping is enabled or not.

2. User terminal (20), according to claim 1, characterized in that the control section (401) is configured to determine the group number based on a jump index.

3. User terminal (20), according to claim 2, characterized in that if frequency hopping is enabled, the control section (401) is configured to apply a first hopping index corresponding to the first hopping and apply a second hopping index corresponding to the second hopping.

4. User terminal (20), according to claim 3, characterized in that when frequency hopping is disabled, the control section (401) is configured to apply the first hopping index.

5. User terminal (20), according to claim 4, characterized in that the control section (401) is configured to: determine, if frequency hopping is disabled, a group number to apply to the given slot when using a hopping index of 0, and determine, if frequency hopping is enabled, two group numbers to apply to the given slot when using hopping indices of 0 and 1, respectively.

6. User terminal (20), according to any one of claims 2 to 5, characterized in that the control section (401) is configured to determine the group number based on a slot number in addition to the jump index.

7. Radio communication method for a user terminal (20) characterized in that it comprises: determining a group number based on whether an uplink control channel is subject to frequency hopping or not; and transmitting the uplink control channel to which a given sequence corresponding to the group number is applied, wherein the number of group numbers to apply in a given slot is determined based on whether frequency hopping is enabled or not. Petition 870250092937, dated 10 / 10 / 2025, pp. 93 / 94

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