JP7749680B2 - Terminal, wireless communication method, base station and system - Google Patents

Description

The present disclosure relates to a terminal, a wireless communication method , a base station , and a system in a next-generation mobile communication system.

Long Term Evolution (LTE) was specified for Universal Mobile Telecommunications System (UMTS) networks with the aim of achieving even higher data rates and lower latency (Non-Patent Document 1). Furthermore, LTE-Advanced (3GPP Rel. 10-14) was specified with the aim of achieving even higher capacity and more advanced features than LTE (Third Generation Partnership Project (3GPP) Release (Rel.) 8, 9).

Successor systems to LTE (also known as 5th generation mobile communication system (5G), 5G+ (plus), 6th generation mobile communication system (6G), New Radio (NR), 3GPP Rel. 15 or later, etc.) are also being considered.

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

Improvements to uplink coverage are being considered for future wireless communication systems (e.g., Rel. 18 NR and beyond). However, sufficient consideration has not been given to improving coverage when the size of uplink control information increases. If uplink control information transmission is not performed appropriately, there is a risk of degradation in throughput and communication quality.

Therefore, one object of the present disclosure is to provide a terminal, a wireless communication method , a base station , and a system that appropriately transmit a sequence that depends on the value of uplink control information.

A terminal according to one aspect of the present disclosure includes a receiving unit that receives a resource configuration for a physical uplink control channel, and a control unit that controls transmission of a sequence based on a cyclic shift that depends on a value of uplink control information of a specific type that is more than two bits, using the resource, wherein the value is associated with a first offset of at least one of a physical resource block index and a symbol index, and a second offset of a cyclic shift index .

According to one aspect of the present disclosure, a sequence that depends on the value of the uplink control information can be appropriately transmitted.

1A to 1E are diagrams illustrating an example of a PUCCH format. FIG. 2 is a diagram illustrating an example of PF0. 3A to 3C are diagrams illustrating an example of a DMRS-based PUCCH and a sequence-based PUCCH. 4A and 4B are diagrams showing an example of mode 1-1. 5A and 5B are diagrams showing another example of mode 1-1. 6A to 6C are diagrams showing an example of mode 1-2-1. FIG. 7 is a diagram showing an example of mode 1-2-2. 8A and 8B are diagrams showing an example of mode 1-3-1. FIG. 9 is a diagram showing an example of mode 1-3-2. 10A and 10B are diagrams showing an example of mode 1-4. FIG. 11 is a diagram illustrating an example of a PUCCH band. 12A and 12B are diagrams showing an example of the association between the PUCCH bandwidth and the CS offset number. FIG. 13 is a diagram illustrating an example of the association between UCI size and PUCCH bandwidth. FIG. 14 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment. FIG. 15 is a diagram illustrating an example of the configuration of a base station according to an embodiment. FIG. 16 is a diagram illustrating an example of the configuration of a user terminal according to an embodiment. FIG. 17 is a diagram illustrating an example of the hardware configuration of a base station and a user terminal according to an embodiment. FIG. 18 is a diagram illustrating an example of a vehicle according to an embodiment.

(PUCCH format)
In NR, a configuration (format, also referred to as PUCCH format (PF)) for an uplink control channel (e.g., PUCCH) is used to transmit uplink control information (UCI). For example, Rel. 15 NR supports PF0 to PF4 as shown in Figures 1A to 1E. Note that in Rel. 17 and later, the names of the PFs shown below are merely examples, and different names may be used.

For example, PF0 and 1 are PFs used to transmit UCI of up to 2 bits. For example, the UCI may be at least one of delivery confirmation information (also called Hybrid Automatic Repeat reQuest-Acknowledgement (HARQ-ACK), acknowledgement (ACK), or negative-acknowledgement (NACK)) and a scheduling request (SR). PF0 can be assigned to one or two symbols and is therefore also called a short PUCCH. On the other hand, PF1 can be assigned to four to fourteen symbols and is therefore also called a long PUCCH. PF0 is also called a sequence-based PUCCH because it transmits a sequence obtained by cyclic shifting a base sequence using a cyclic shift (CS) that depends on the UCI value. In PF1, multiple user terminals may be code division multiplexed (CDM) within the same physical resource block (PRB) using time domain block spreading using at least one of CS and time domain (TD)-orthogonal cover code (OCC). PF0 and PF1 may be mapped to one PRB.

PF2-4 are PFs used to transmit UCI of more than 2 bits (e.g., Channel State Information (CSI) or at least one of CSI, HARQ-ACK, and SR). PF2 can be allocated to 1 or 2 symbols and is therefore also referred to as short PUCCH, etc. On the other hand, PF3 and PF4 can be allocated to 4-14 symbols and are therefore also referred to as long PUCCH, etc. In PF4, multiple user terminals may be CDMed using block spreading in the frequency domain (FD)-OCC before DFT. PF2 and PF3 may be mapped to 1-16 PRBs. PF4 may be mapped to 1 PRB.

PF1-4 are also called DMRS-based PUCCHs because they transmit UCI and DMRS in resource blocks allocated to PUCCH. In PF1, 3, and 4, UCI and DMRS are time-division multiplexed (TDM). In PF2, DMRS is mapped to every three subcarriers, and UCI and DMRS are frequency-division multiplexed (FDM).

Intra-slot frequency hopping may be applied to PF1, PF3, and PF4. If the length of the PUCCH is N _symb , the length before frequency hopping (first hop) may be floor(N _symb /2), and the length after frequency hopping (second hop) may be ceil(N _symb /2).

The waveforms of PF0, PF1, and PF2 may be Cyclic Prefix (CP)-Orthogonal Frequency Division Multiplexing (OFDM). The waveforms of PF3 and PF4 may be Discrete Fourier Transform (DFT)-spread(s)-OFDM.

The allocation of resources (e.g., PUCCH resources) used to transmit the uplink control channel is performed using higher layer signaling and/or downlink control information (DCI).

Specifically, one or more sets (PUCCH resource sets), each containing one or more PUCCH resources, are notified (configured) to the UE via higher layer signaling. For example, K (e.g., 1≦K≦4) PUCCH resource sets may be notified to the user terminal from the network (e.g., base station). Each PUCCH resource set may include M (e.g., 1≦M≦32) PUCCH resources.

The UE may determine a single PUCCH resource set (first PUCCH resource set) from the configured K PUCCH resource sets based on the UCI payload size (UCI payload size, number of UCI information bits). The UCI payload size may be the number of UCI bits excluding the Cyclic Redundancy Check (CRC) bits.

The UE may determine the PUCCH resource to be used for transmitting UCI from the M PUCCH resources included in the determined PUCCH resource set based on at least one of DCI and implicit information (also referred to as implicit indication information or implicit index). For example, the implicit indication information may be the first CCE index of the PDCCH receiving the DCI.

Each PUCCH resource configured for a UE may include a value of at least one of the following parameters (also referred to as a field or information, etc.): Note that a range of values that each parameter can take may be defined for each PUCCH format.
Symbol at which PUCCH allocation starts (start symbol)
Number of symbols allocated to PUCCH in a slot (period allocated to PUCCH)
Index of the resource block (physical resource block (PRB)) where PUCCH allocation starts Number of PRBs allocated to PUCCH Whether frequency hopping is enabled for PUCCH Second hop frequency resource and initial cyclic shift (CS) index when frequency hopping is enabled Index of orthogonal spreading code (e.g., OCC: Orthogonal Cover Code) in the time domain, length of OCC used for block spreading before Discrete Fourier Transform (DFT) (also referred to as OCC length, spreading factor, etc.)
- OCC index used for block-wise spreading after DFT

A low-power to average power ratio (low PAPR) sequence is used for UCI in PF0/PF1 and DMRS in PF1/PF3/PF4. A pseudo-random sequence (Gold sequence) is used for DMRS in PF2.

As shown in Figure 2, for PF0, the UE applies a cyclic shift (phase rotation) to elements _X0 , ..., _X11 of the base sequence using a cyclic shift based on an initial cyclic shift index m_0 and a corresponding cyclic shift offset (sequence cyclic shift) m_CS that depends on the value of UCI (at least one of HARQ-ACK and SR), and maps the resulting sequence to one PRB (12 subcarriers). The initial cyclic shift index may be configured using higher layer signaling.

The association (table) between 1/2-bit HARQ-ACK information and the cyclic shift offset for the initial cyclic shift index is specified in the specification. The association (table) between 1/2-bit HARQ-ACK information, positive SR, and the cyclic shift offset for the initial cyclic shift index is specified in the specification. The association (table) between 1/2-bit HARQ-ACK information, negative SR, and the cyclic shift offset for the initial cyclic shift index is the same as the association (table) between 1/2-bit HARQ-ACK information and the cyclic shift offset for the initial cyclic shift index. For example, the values {0, 1} of 1-bit HARQ-ACK information correspond to cyclic shift offsets 0 and 6, respectively. For example, the values {00, 01, 11, 10} of 2-bit HARQ-ACK information correspond to cyclic shift offsets 0, 3, 6, and 9, respectively.

Rel. 15 defines constant amplitude zero auto-correlation (CAZAC) sequences (Zadoff-Chu (ZC) sequences) as low Peak to Average Power Ratio (PAPR) sequences for lengths of 36 or greater. For lengths shorter than 36, computer-generated sequences (CGS) that take PAPR and cross-correlation into account are defined. CAZAC sequences with prime lengths achieve ideal PAPR (i.e., PAPR = 1); otherwise, the PAPR degrades.

(analysis)
Figure 3A shows an example of a PUCCH using DMRS-based transmission (transmission including DMRS). In this example, UCI and DMRS are transmitted and TDMed across one PRB and two symbols allocated to the PUCCH. Figures 3B and 3C show an example of a PUCCH using sequence-based transmission (transmission without DMRS). In this example, a sequence depending on the UCI value is transmitted across one PRB and two symbols allocated to the PUCCH, and no DMRS is transmitted. Figure 3B shows a case where frequency hopping is not performed, and Figure 3C shows a case where frequency hopping is performed.

The performance (coverage/link budget) of PUSCH/PUCCH using sequence-based transmission is higher than that of PUSCH/PUCCH using DMRS-based transmission. This is because sequence-based transmission uses all of the transmission energy for transmitting information, while DMRS-based transmission uses only a portion of the transmission energy for transmitting DMRS.

In Rel. 15 NR, UEs can use sequence-based transmission (PUCCH format (PF) 0) for transmitting up to 2 bits of HARQ-ACK and UCI up to positive SR/negative SR, and use DMRS-based transmission for transmitting more UCI. Among short PUCCHs, PF2, which uses OFDM-based (OFDM waveform) transmission, has a higher peak-to-average power ratio (PAPR) than PF0, which uses a constant amplitude zero auto-correlation (CAZAC) sequence. Therefore, the performance of PF2 is lower than that of PF0.

UL coverage extension is being considered for Rel. 18 and later. It is also desirable to improve the performance of PUCCH, which transmits UCI with more than two bits. If such PUCCH is not transmitted appropriately, it may result in a decrease in throughput/communication quality.

The inventors therefore came up with a way to properly transmit UCI.

Embodiments of the present disclosure will be described in detail below with reference to the drawings. The wireless communication methods according to the embodiments may be applied independently or in combination.

In this disclosure, "A/B" and "at least one of A and B" may be interpreted interchangeably. Also, in this disclosure, "A/B/C" may mean "at least one of A, B, and C."

In this disclosure, terms such as activate, deactivate, indicate (or indicate), select, configure, update, and determine may be read interchangeably. In this disclosure, terms such as support, control, controllable, operate, and operate may be read interchangeably.

In this disclosure, Radio Resource Control (RRC), RRC parameters, RRC messages, higher layer parameters, information elements (IEs), settings, etc. may be interchangeable. In this disclosure, Medium Access Control control elements (MAC Control Elements (CE)), update commands, activation/deactivation commands, etc. may be interchangeable.

In the present disclosure, higher layer signaling may be, for example, Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, etc., or a combination thereof.

In the present disclosure, MAC signaling may use, for example, a MAC Control Element (MAC CE), a MAC Protocol Data Unit (PDU), etc. Broadcast information may be, for example, a Master Information Block (MIB), a System Information Block (SIB), Remaining Minimum System Information (RMSI), Other System Information (OSI), etc.

In the present disclosure, physical layer signaling may be, for example, Downlink Control Information (DCI), Uplink Control Information (UCI), etc.

In this disclosure, the terms index, identifier (ID), indicator, resource ID, etc. may be interchangeable. In this disclosure, the terms sequence, list, set, group, cluster, subset, etc. may be interchangeable.

In the present disclosure, the UCI/UCI type may include at least one of HARQ-ACK information, SR (positive SR/negative SR), and CSI. In the present disclosure, the CSI may include at least one of Channel Quality Information (CQI), Precoding Matrix Indicator (PMI), CSI-RS Resource Indicator (CRI), SS/PBCH Resource Block Indicator (SSBRI), Layer Indicator (LI), Rank Indicator (RI), and Layer 1 (L1)-Reference Signal Received Power (RSRP).

In this disclosure, the terms cyclic shift (CS) offset, sequence cyclic shift, m_CS, and integer may be interchangeable. In this disclosure, the terms initial CS index, initialCyclicShift, m_0, and integer may be interchangeable.

In the present disclosure, resources, PUCCH resources, transmission parameters, code (sequence) resources (e.g., CS index/initial CS index/CS offset/base sequence index/sequence group number/sequence number/base sequence offset/initial base sequence index), time resources (e.g., symbol index/initial (starting) symbol index/symbol offset/slot index/frequency hop index), and frequency resources (e.g., PRB index/initial (starting) PRB index/PRB offset, cell index) may be interpreted as interchangeable.

(Wireless communication method)
The UE may use sequence-based PUCCH (sequence-based PUCCH format, PUCCH without DMRS) to transmit UCI with more than 2 bits (eg, x-bit UCI).

UCI of more than 2 bits may include HARQ-ACK information (for PDSCH of multiple slots) in TDD, may include HARQ-ACK information (for PDSCH of multiple cells) in CA, may include SR (positive SR/negative SR), or may include CSI (e.g., CQI/PMI).

The UE may determine/select one resource corresponding to the UCI value from the 2^x (2 to the power x) possible resources and use that resource to transmit PUCCH. The resource may be identified by at least one of a cyclic shift (CS) index, a base sequence index (sequence group number/sequence number), a time resource (e.g., a symbol index, a slot index, a frequency hop index), or a frequency resource (e.g., a physical resource block (PRB) index, a cell index).

The UE may use a sequence-based PUCCH to transmit UCI that includes only the HARQ-ACK/SR UCI type (specific type). The UE may use a DMRS-based PUCCH to transmit UCI that includes UCI types other than HARQ-ACK/SR (specific type).

When the UCI size x is within a specific range, the UE may use a sequence-based PUCCH to transmit x-bit UCI that includes only the HARQ-ACK/SR UCI type. The UE may also use a DMRS-based PUCCH to transmit x-bit UCI that includes a UCI type other than HARQ-ACK/SR.

The PF for transmitting UCI with more than 2 bits may be a new PF (e.g., PF5). If a new PF is configured, the UE may use the new PF. A PF information element may be configured in each PUCCH resource information element included in the PUCCH resource set information element, and resources may be configured in the PF information element.

A specific range of the size x of UCI using sequence-based transmission may be specified in the specification. For example, the specific range of x may be 3 or greater, 3 to 11, 1 or greater, or 1 to 11. If x exceeds the upper limit of the specific range, the UE may use PF2/3/4 to transmit the UCI.

The sequence-based transmission PUCCH may be a short PUCCH. The short PUCCH may be a PUCCH of 1 or 2 symbols. The sequence-based transmission PUCCH may be a long PUCCH. The long PUCCH may be a PUCCH of 4 to 14 symbols. The sequence-based transmission PUCCH may or may not include a PUCCH of 3 symbols.

First Embodiment
This embodiment relates to a method for determining a sequence to be used/transmitted for sequence-based transmission.

A PUCCH resource including an initial CS index/initial (starting) PRB index may be configured/indicated. The UE may determine transmission parameters for determining the sequence/transmission resource according to a decision rule. The transmission parameters may depend on/correspond to the value of the UCI. The transmission parameters may be at least one of a CS index, a PRB index, a base sequence index, a time resource index, and a frequency resource index. The UE may derive the transmission parameters based on the PUCCH resource information element (initial CS index/initial PRB index).

The specification may specify an association/mapping/table between UCI values and CS offsets. Initial CS index + CS offset = CS index.

The UCI may be HARQ-ACK information, or may be HARQ-ACK information and positive SR/negative SR. The UCI may be HARQ-ACK information of more than 3 bits, or may be HARQ-ACK information of more than 3 bits and positive SR/negative SR.

A decision rule may be defined for each specific range of UCI types. The UCI types may include at least one of a specific range of HARQ-ACK, a specific range of HARQ-ACK and positive SR, or a specific range of HARQ-ACK and negative SR.

<<Aspect 1-1>>
The bit string of the UCI may be divided into one or more parts (information parts, bit groups, segments). The UE may determine transmission parameters for each information part. Each information part may have a specific size. The specific size may be 2 bits or more than 2 bits.

The UE may determine transmission parameters for each information portion based on a decision rule. The transmission parameters may include at least one of a CS index, a PRB index, and a symbol index. The UE may determine a cyclic shift α using the CS index for each information portion, generate a sequence by cyclic shifting α of a base sequence, and transmit the sequence. The UE may transmit the sequence in a PRB having a PRB index for each information portion. The UE may transmit the sequence in a PRB having a PRB index. The UE may transmit the sequence in a symbol having a symbol index for each information portion.

In the example of Figure 4A, the specific size is 2 bits. Based on the association between the information portion values and CS offsets in the example of Figure 4B, the UE may determine the CS offset corresponding to each information portion value and use a CS index of initial CS index + CS offset for transmitting that information portion. The UE may use the indicated initial PRB index for transmitting the first information portion. The UE may determine a PRB offset m*(i-1) for the i (i>1)-th information portion and use a PRB index of initial PRB index + PRB offset for transmitting that information portion. Initial PRB index + PRB offset = PRB index. PRB spacing m may be specified in the specification or may be configured by higher layer signaling (e.g., a PUCCH resource information element).

In the example of Figure 4A, the UCI size is 12 bits, but the UCI size is not limited to this example. If the UCI is smaller than 12 bits, PRB indices may be applied up to the UCI size, starting from the first information part (first bit, most significant bit (MSB)). For example, if the value of the 4-bit UCI is 0111, the UE may use a CS index of initial CS index + CS offset 3 and a PRB index of initial PRB index + PRB offset 0 to transmit the first information part with value 01. In this case, the UE may use a CS index of initial CS index + CS offset 6 and a PRB index of initial PRB index + PRB offset m to transmit the second information part with value 11. The size of the information part is not limited to this example. The size of the information part may be greater than 3 bits.

In this way, when multiple sequences corresponding to multiple information portions are frequency-division multiplexed (FDM), the PAPR may be higher than when a single sequence is transmitted. Therefore, as in the example of FIG. 5A, an initial (starting) symbol index/symbol offset/symbol index may be used instead of the initial PRB index/PRB offset/PRB index, thereby time-division multiplexing (TDM) multiple sequences corresponding to multiple information portions. Furthermore, as in the example of FIG. 5B, the initial PRB index/PRB offset/PRB index, the initial (starting) symbol index/symbol offset/symbol index, and the initial CS index/CS offset/CS index may be combined. At least one of the PRB interval m and the symbol interval n may be specified in the specifications or set by higher layer signaling. The PRB offset/symbol offset may increase in the order of the information portions or may follow a hopping pattern.

The UE may transmit multiple information portions in multiple consecutive (or non-consecutive) symbols, respectively. The UE may determine transmission parameters (e.g., PRB index/CS index) for each information portion according to a decision rule. The decision rule may be the decision rule described above. The decision rule may determine the CS index based on a function of the time resource index (e.g., symbol index/slot index) (CS hopping). The decision rule may determine the PRB index based on a function of the time resource index (e.g., symbol index/slot index) (frequency hopping). The value of the UCI may be associated with the PRB offset/symbol offset (first offset) and the CS offset (second offset).

In the present disclosure, CS offset may be interpreted as base sequence offset (base sequence index/group number/sequence number), or as a combination of CS offset and base sequence offset.

The UE may allocate UCI to time/frequency resources (e.g., PRBs/symbols) for each specific size.

<<Aspect 1-2>>
The CS offset/PRB offset may depend on the value of the UCI.

[Aspect 1-2-1]
The PRB offset may depend on the value of the UCI.

UCI values (code points) may be grouped into one or more groups (code point groups, code point ranges). The rules for determining the CS index corresponding to the UCI offset within a group (code point index, code point index of the value of 2 bits (e.g., the lowest 2 bits) of the UCI) may be specified in the specification or may be configured. The association between the UCI value (e.g., the highest x-2 bits or the lowest x-2 bits of the x bits, group index) and the PRB offset may be specified in the specification or may be configured by higher layer signaling. Initial PRB index + PRB offset = PRB index may also be used.

The spacing between adjacent PRB offsets may be PRB spacing m. PRB spacing m may be specified in the specification or configured by higher layer signaling. PRB spacing m does not have to be constant.

The UE may determine a group from the UCI value (e.g., the upper x-2 bits or the lower x-2 bits of the x bits), determine a PRB offset for that group, determine a PRB index of the initial PRB index + PRB offset, determine a CS offset for the UCI offset within the group, and determine a CS index of the initial CS index + CS offset. The UE may transmit a sequence based on that CS index in a PRB having that PRB index.

As in the example of FIG. 6A, when the UCI size is 4 bits, the 16 UCI values (code points) may be grouped into 4 groups. Four PRBs may correspond to each of the 4 groups. The UE may determine a PRB offset corresponding to the group of UCI values to be transmitted. The UCI value may be associated with the offset of the UCI value within the corresponding group (UCI offset, the value of the least significant 2 bits of the UCI). The number of groups is not limited to this example. For example, if the UCI values are grouped into 2 groups, the UE may use a PRB offset to transmit 1 bit of the UCI and a CS offset to transmit the remaining bits (the least significant x-1 bits or the most significant x-1 bits). For example, if the UCI values are grouped into 8 groups, the UE may use a PRB offset to transmit 3 bits of the UCI and a CS offset to transmit the remaining bits (the least significant x-3 bits or the most significant x-3 bits).

As in the example of Figure 6B, if the UE transmits a UCI value of 0101, this value belongs to group #1, so the PRB offset m corresponding to group #1 may be determined, and the PRB index of the initial PRB index + PRB offset m may be determined. The four PRBs corresponding to the four groups may be discontinuous or contiguous.

The UE may determine CS offset 3 corresponding to UCI offset 1 in group #1 based on the association between UCI offsets and CS offsets within the group, such as the example of Figure 6C.

The receiver (base station) does not need to use all values of the UCI for maximum likelihood detection. The base station can decode the UCI by measuring the received signal power in each PRB and detecting the correlation between the received signal and replicas of the transmitted signal based on all UCI offsets in the corresponding group in the PRB corresponding to the maximum received signal power.

[Aspect 1-2-2]
The relationship between the number of groups according to the UCI size and the PRB offset may be defined in the specifications or may be set by higher layer signaling.

The UE may determine the CS offset based on two bits of the UCI (e.g., the lowest two bits or the highest two bits) and the PRB offset based on the remaining bits (e.g., the highest x-2 bits or the lowest x-2 bits of the x bits, group index).

For an x-bit UCI, 2^(x-2) associations between groups and PRB offsets may be specified in the specification or configured by higher layer signaling. For the example of Figure 7, if the maximum size of the UCI is 11 bits, 2^(x-2) = 2^9 = 512 associations between groups and PRB offsets may be specified in the specification.

Based on this association, the UE may determine a group from the UCI value (e.g., the most significant x-2 bits or the least significant x-2 bits of the x bits, a group index), determine a PRB offset corresponding to that group, and determine a CS offset from the UCI offset within the group (e.g., the least significant 2 bits or the most significant 2 bits). The association between the UCI offset and the CS offset may be the same as in aspect 1-2-1.

For example, if the UCI size is 4 bits, a PRB offset corresponding to one of 2^(4-2) = 2^2 = 4 groups (#0 to #3) is determined. For example, if the UCI size is 11 bits, a PRB offset corresponding to one of 2^(11-2) = 2^9 = 512 groups (#0 to #511) is determined. The smaller the UCI size, the smaller the bandwidth occupied. The number of groups is not limited to this example.

[Aspect 1-2-3]
The sequence-based PUCCH format for transmission of UCI (HARQ-ACK) with more than 2 bits may be referred to as PF0. The association between UCI offset and CS offset may be the same as that for UCI with 2 bits or less.

Aspects 1-3
The UE may determine at least one of the CS index, the PRB index, and the base sequence index based on a decision rule.

[Aspect 1-3-1]
This aspect relates to the spacing of the CS offset.

If the UCI contains only HARQ-ACK information (without SR) and the PUCCH bandwidth is 1 PRB, the UE can transmit 12 values using 12 CS offsets by using consecutive CS offsets (CS interval N=0). In this case, the UE can transmit 6 values using 6 CS offsets by using every other CS offset (CS interval N=1). N may be specified in the specification or configured by higher layer signaling.

In the present disclosure, the CS interval N may be the number of unused CS offsets (blank CS offsets) or the distance between two adjacent CS offsets. When N is the number of unused CS offsets, N may be 0 when consecutive CS offsets are used. When N is the distance between two adjacent CS offsets, N may be 1 when consecutive CS offsets are used.

The number of UCI values included in each group may depend on N (may be variable). For example, as in the example of the association between UCI values and PRB offsets in Figure 8A, when N = 0, 11 bits can be transmitted using 12 CS offsets and ceil(2048/12) = 171 PRB. For example, as in the example of the association between UCI values and PRB offsets in Figure 8B, when N = 0, 11 bits can be transmitted using 6 CS offsets and ceil(2048/6) = 342 PRB.

In environments with low frequency selectivity, frequency utilization efficiency can be improved by using a small CS interval (e.g., N=0).In environments with high frequency selectivity, tolerance to frequency selectivity can be improved by using a large CS interval (e.g., N=1/2/3).

As in aspect 1-2-2, the number of PRBs may be limited depending on the UCI size.

[Aspect 1-3-2]
This aspect relates to the relationship between N and the CS offset.

As in the example of Figure 9, a CS offset according to the CS interval N may be used. When N=3 (every third CS offset), equally spaced CS offsets can be used. When N=4 (every fourth CS offset), the CS offset intervals are not equal, so N=4 does not have to be used (it may not be configurable).

[Aspect 1-3-3]
This aspect relates to multiplexing of HARQ-ACK information and SR.

In aspects 1-3-1 and 1-3-2, other criteria such as HARQ-ACK information and SR are not taken into consideration.

The UE may add an SR bit before (first, MSB) or after (last, LSB) the HARQ-ACK information bit. For example, if the HARQ-ACK information is 0110101011 and the SR is 1, the value of the transmitted UCI may be 01101010111 or 10110101011. The SR bit values 0 and 1 may correspond to positive SR and negative SR, respectively, or to negative SR and positive SR, respectively.

The UE may use the PUCCH resource (transmission parameter) for transmitting the HARQ-ACK information bit for transmitting the HARQ-ACK information bit and the negative SR. The UE may use at least one of the following PUCCH resources 1 and 2 for transmitting the HARQ-ACK information bit and the positive SR.
PUCCH resource 1
The UE uses a PRB index of PRB index +p in the PUCCH resource for the HARQ-ACK information bits and negative SR to transmit the HARQ-ACK information bits and positive SR, where p may depend on the PRB spacing m.
PUCCH resource 2
The UE uses the CS index of the PUCCH resource for the HARQ-ACK information bit and the negative SR + p to transmit the HARQ-ACK information bit and the positive SR, where p may depend on the CS interval N.

p may be specified in the specification or set by higher layer signaling. p may be 1 or greater than 1.

Aspects 1-4
The UE may map sequences to non-contiguous resource elements (REs, subcarriers) in the frequency domain.

Comb RE mapping may be used in the frequency domain. The PRB offset in aspects 1-1 to 1-3 may be replaced with a comb offset. The PRB spacing in aspects 1-1 to 1-3 may be replaced with the number of combs.

In the examples of Figures 10A and 10B, the comb number = 2. For comb offset = 0, the sequence may be mapped to one subcarrier out of every two subcarriers, starting from the first subcarrier (subcarrier index = 0) in the PRB. For comb offset = 1, the sequence may be mapped to one subcarrier out of every two subcarriers, starting from the second subcarrier (subcarrier index = 1) in the PRB. In this example, the sequence is mapped to 6 REs in one PRB, but the number of PRBs and REs is not limited to this example. For example, the sequence may be mapped to 12 REs in two PRBs.

Aspect 1-5
This aspect relates to the bandwidth of the sequence-based PUCCH.

In aspects 1-1 to 1-4, the bandwidth of one sequence-based PUCCH may be one PRB. In this case, the sequence-based PUCCH can be multiplexed (e.g., code-division multiplexing (CDM)) with the PF0 of a Rel. 15/16 UE.

In aspects 1-1 to 1-4, the bandwidth of one sequence-based PUCCH may be larger than one PRB. The bandwidth may be configured by higher layer signaling or determined by the UE according to a decision rule. For example, the UE may determine the bandwidth of the sequence-based PUCCH based on the UCI size.

Aspects 1-1 to 1-4 can be applied to a sequence-based PUCCH having a bandwidth wider than one PRB. The number of available CS offsets may vary depending on the bandwidth of the sequence-based PUCCH.

According to this embodiment, the UE can appropriately transmit more than two bits of UCI using sequence-based PUCCH.

Second Embodiment
In Rel. 15/16, low-PAPR sequences shorter than 30 (sequences used for PF0) are computer-generated sequences (CGS) and have low PAPR, autocorrelation, and cross-correlation. The longer the length of a low-PAPR sequence (e.g., CAZAC sequence, Zadoff-Chu (ZC) sequence, or CGS), the better its characteristics (lower PAPR, autocorrelation, and cross-correlation).

The number of available CS offsets may be equal to the low-PAPR sequence length. By increasing the bandwidth of the sequence-based PUCCH, the UCI size that can be transmitted by the sequence-based PUCCH can be increased.

As shown in the example of Figure 11, the initial PRB index of the sequence-based PUCCH may be configured by higher layer signaling. The UE may transmit the sequence-based PUCCH using a band having a bandwidth (number of PRBs Q) starting from the initial PRB index.

For example, if the bandwidth of the sequence-based PUCCH is 10 PRBs, 120 CS offsets may be available (120 different values of UCI may be transmittable).

Comparing Case A, in which the sequence-based PUCCH uses 1 PRB out of 10 PRBs and 1 CS offset out of 12 CS offsets, with Case B, in which the sequence-based PUCCH uses 10 PRBs and 1 CS offset out of 120 CS offsets, it is possible to transmit UCI of the same size. Because the sequence length in Case B is longer than that in Case A, the performance of Case B is better than that of Case A.

The second embodiment may be applied to the first embodiment.

The example in Figure 12A shows the relationship between bandwidth and the number of CS offsets when the CS interval N=0. The example in Figure 12B shows the relationship between bandwidth and the number of CS offsets when the CS interval N=1. When the bandwidth Q is 3, 6, or 11, the number of CS offsets is greater than and close to 2^x, so the UE can transmit UCI efficiently. For example, when N=0, the UCI size that can be transmitted is 6 bits whether Q is 10 or 6. When aspect 1-1 is applied, the UE can transmit UCI using a narrower bandwidth by using Q=6. When aspects 1-2/1-3 are applied, there is almost no difference in frequency utilization efficiency whether Q=10 or Q=6.

The bandwidth (number of PRBs Q) of the sequence-based PUCCH may be specified in the specifications, may be set by higher layer signaling, or may be determined by the UE according to a decision rule.

The bandwidth of a sequence-based PUCCH transmitting UCI with more than two bits may be Q PRBs. A decision rule may determine the bandwidth Q corresponding to the UCI size. The association between the UCI size and the bandwidth Q may be specified in the specifications or may be configured by higher layer signaling. The UCI size may be 3 to 11 bits. For example, as shown in the example of Figure 13, a table indicating the association between the UCI size [bits] and the PUCCH bandwidth Q [PRB] may be specified in the specifications.

In the first embodiment, an example is described in which the bandwidth is 1 PRB, so the number of CS offsets available in the band corresponding to one group is 12, and there are 12 possible UCI values that can be transmitted in one group.

In the second embodiment, the bandwidth is wider, so the number of CS offsets available in one band is larger.

In the example of CS interval N=0 in Figure 8A above, when bandwidth Q=10, the number of UCI offsets/CS offsets corresponding to one group/PRB offset may be 120. In the example of CS interval N=1 in Figure 8B above, when bandwidth Q=10, the number of UCI offsets/CS offsets corresponding to one group/PRB offset may be 60.

According to this embodiment, the UE can appropriately transmit sequence-based PUCCH using a bandwidth wider than one PRB. Furthermore, by using a bandwidth wider than one PRB, it is possible to reduce inter-cell interference and cross-correlation.

<Other Embodiments>
UE Capability Information/Higher Layer Parameters
Higher layer parameters (RRC IEs)/UE capabilities corresponding to the functions (features) in each of the above embodiments may be defined. The higher layer parameters may indicate whether the functions are enabled. The UE capabilities may indicate whether the UE supports the functions.

A UE for which the corresponding upper layer parameters are configured may perform that function. It may also be specified that "a UE for which the corresponding upper layer parameters are not configured shall not perform that function (e.g., in accordance with Rel. 15/16)."

A UE that has reported/transmitted a UE capability indicating that it supports the function may perform the function. It may also be specified that "a UE that has not reported a UE capability indicating that it supports the function shall not perform the function (e.g., in accordance with Rel. 15/16)."

If the UE reports/transmits a UE capability indicating that it supports the function and the corresponding higher layer parameters are configured, the UE may perform the function. It may also be specified that "if the UE does not report/transmit a UE capability indicating that it supports the function or if the corresponding higher layer parameters are not configured, the UE shall not perform the function (e.g., in accordance with Rel. 15/16)."

Which of the above multiple embodiments/options/choices/functions is used may be configured by higher layer parameters, may be reported by the UE as UE capabilities, may be specified in a specification, or may be determined by the reported UE capabilities and the configuration of higher layer parameters.

The UE capabilities may indicate whether it supports at least one of the following functions:
A sequence-based PUCCH format that transmits more than 2 bits of UCI.
PF0 transmitting more than 2 bits of UCI.
PF0 transmitting UCI containing more than 2 bits of HARQ-ACK information.

The UE capabilities may indicate at least one of the following:
Maximum values of bandwidth/number of PRBs/sequence length/number of subcarriers for sequence-based PUCCH.
・CS offset interval.

The above UE capabilities/upper layer parameters enable the UE to achieve the above functions while maintaining compatibility with existing specifications.

(wireless communication system)
The configuration of a wireless communication system according to an embodiment of the present disclosure will be described below. In this wireless communication system, communication is performed using any one of the wireless communication methods according to the above embodiments of the present disclosure or a combination thereof.

Figure 14 is a diagram showing an example of the schematic configuration of a wireless communication system according to one embodiment. The wireless communication system 1 may be a system that realizes communication using Long Term Evolution (LTE) specified by the Third Generation Partnership Project (3GPP), 5th generation mobile communication system New Radio (5G NR), or the like.

The wireless communication system 1 may also support dual connectivity between multiple Radio Access Technologies (RATs) (Multi-RAT Dual Connectivity (MR-DC)). MR-DC may include dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), dual connectivity between NR and LTE (NR-E-UTRA Dual Connectivity (NE-DC)), etc.

In EN-DC, the LTE (E-UTRA) base station (eNB) is the master node (MN), and the NR base station (gNB) is the secondary node (SN). In NE-DC, the NR base station (gNB) is the MN, and the LTE (E-UTRA) base station (eNB) is the SN.

The wireless communication system 1 may support dual connectivity between multiple base stations within the same RAT (e.g., dual connectivity in which both the MN and SN are NR base stations (gNBs) (NR-NR Dual Connectivity (NN-DC))).

The wireless communication system 1 may include a base station 11 that forms a macrocell C1 with relatively wide coverage, and base stations 12 (12a-12c) that are located within the macrocell C1 and form a small cell C2 that is smaller than the macrocell C1. A user terminal 20 may be located within at least one of the cells. The location and number of each cell and user terminal 20 are not limited to the configuration shown in the figure. Hereinafter, when there is no need to distinguish between base stations 11 and 12, they will be collectively referred to as base station 10.

The user terminal 20 may be connected to at least one of the multiple base stations 10. The user terminal 20 may utilize at least one of carrier aggregation (CA) using multiple component carriers (CC) and dual connectivity (DC).

Each CC may be included in at least one of a first frequency band (Frequency Range 1 (FR1)) and a second frequency band (Frequency Range 2 (FR2)). Macro cell C1 may be included in FR1, and small cell C2 may be included in FR2. For example, FR1 may be a frequency band below 6 GHz (sub-6 GHz), and FR2 may be a frequency band above 24 GHz (above-24 GHz). Note that the frequency bands and definitions of FR1 and FR2 are not limited to these, and for example, FR1 may correspond to a higher frequency band than FR2.

In addition, the user terminal 20 may communicate using at least one of Time Division Duplex (TDD) and Frequency Division Duplex (FDD) in each CC.

Multiple base stations 10 may be connected by wire (e.g., optical fiber compliant with the Common Public Radio Interface (CPRI), X2 interface, etc.) or wirelessly (e.g., NR communication). For example, when NR communication is used as a backhaul between base stations 11 and 12, base station 11, which corresponds to the upper station, may be called an Integrated Access Backhaul (IAB) donor, and base station 12, which corresponds to the relay station, may be called an IAB node.

A base station 10 may be connected to a core network 30 via another base station 10 or directly. The core network 30 may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), a Next Generation Core (NGC), etc.

The user terminal 20 may be a terminal compatible with at least one of the communication methods such as LTE, LTE-A, and 5G.

In the wireless communication system 1, a wireless access method based on Orthogonal Frequency Division Multiplexing (OFDM) may be used. For example, in at least one of the downlink (DL) and uplink (UL), Cyclic Prefix OFDM (CP-OFDM), Discrete Fourier Transform Spread OFDM (DFT-s-OFDM), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), etc. may be used.

A radio access method may also be called a waveform. In wireless communication system 1, other radio access methods (e.g., other single-carrier transmission methods, other multi-carrier transmission methods) may be used for the UL and DL radio access methods.

In the wireless communication system 1, a downlink shared channel (Physical Downlink Shared Channel (PDSCH)) shared by each user terminal 20, a broadcast channel (Physical Broadcast Channel (PBCH)), a downlink control channel (Physical Downlink Control Channel (PDCCH)), etc. may be used as a downlink channel.

In addition, in the wireless communication system 1, an uplink shared channel (Physical Uplink Shared Channel (PUSCH)) shared by each user terminal 20, an uplink control channel (Physical Uplink Control Channel (PUCCH)), a random access channel (Physical Random Access Channel (PRACH)), etc. may be used as an uplink channel.

User data, upper layer control information, System Information Block (SIB), etc. are transmitted via PDSCH. User data, upper layer control information, etc. may also be transmitted via PUSCH. Furthermore, Master Information Block (MIB) may also be transmitted via PBCH.

Lower layer control information may be transmitted via the PDCCH. The lower layer control information may include, for example, Downlink Control Information (DCI) including scheduling information for at least one of the PDSCH and the PUSCH.

Note that the DCI that schedules the PDSCH may be called a DL assignment, DL DCI, etc., and the DCI that schedules the PUSCH may be called an UL grant, UL DCI, etc. Note that the PDSCH may be interpreted as DL data, and the PUSCH may be interpreted as UL data.

Detection of the PDCCH may utilize a control resource set (CORESET) and a search space. The CORESET corresponds to the resources to search for DCI. The search space corresponds to the search region and search method for PDCCH candidates. One CORESET may be associated with one or more search spaces. The UE may monitor the CORESET associated with a certain search space based on the search space configuration.

One search space may correspond to PDCCH candidates corresponding to one or more aggregation levels. One or more search spaces may be referred to as a search space set. Note that the terms "search space," "search space set," "search space setting," "search space set setting," "CORESET," "CORESET setting," etc. in the present disclosure may be read interchangeably.

The PUCCH may transmit uplink control information (UCI) including at least one of channel state information (CSI), delivery confirmation information (which may be referred to as, for example, Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), ACK/NACK, etc.), and scheduling request (SR). The PRACH may transmit a random access preamble for establishing a connection with a cell.

Note that in this disclosure, downlink, uplink, etc. may be expressed without the word "link." Also, various channels may be expressed without the word "Physical" at the beginning.

In the wireless communication system 1, a synchronization signal (SS), a downlink reference signal (DL-RS), etc. may be transmitted. In the wireless communication system 1, a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), a demodulation reference signal (DMRS), a positioning reference signal (PRS), a phase tracking reference signal (PTRS), etc. may be transmitted as the DL-RS.

The synchronization signal may be, for example, at least one of a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS). A signal block including an SS (PSS, SSS) and a PBCH (and a DMRS for the PBCH) may be referred to as an SS/PBCH block, an SS Block (SSB), etc. Note that SS, SSB, etc. may also be referred to as a reference signal.

In addition, in the wireless communication system 1, a sounding reference signal (SRS), a demodulation reference signal (DMRS), etc. may be transmitted as an uplink reference signal (UL-RS). DMRS may also be called a user equipment-specific reference signal (UE-specific Reference Signal).

(base station)
15 is a diagram illustrating an example of the configuration of a base station according to an embodiment. The base station 10 includes a control unit 110, a transceiver unit 120, a transceiver antenna 130, and a transmission line interface 140. Note that the base station may include one or more of each of the control unit 110, the transceiver unit 120, the transceiver antenna 130, and the transmission line interface 140.

Note that this example mainly shows the functional blocks that characterize this embodiment, and the base station 10 may also have other functional blocks necessary for wireless communication. Some of the processing of each unit described below may be omitted.

The control unit 110 controls the entire base station 10. The control unit 110 can be composed of a controller, a control circuit, etc., which are described based on common understanding in the technical field related to this disclosure.

The control unit 110 may control signal generation, scheduling (e.g., resource allocation, mapping), etc. The control unit 110 may also control transmission and reception using the transceiver unit 120, the transceiver antenna 130, and the transmission path interface 140, measurements, etc. The control unit 110 may generate data, control information, sequences, etc. to be transmitted as signals and transfer them to the transceiver unit 120. The control unit 110 may also perform call processing of communication channels (setting up, releasing, etc.), status management of the base station 10, management of radio resources, etc.

The transceiver unit 120 may include a baseband unit 121, a radio frequency (RF) unit 122, and a measurement unit 123. The baseband unit 121 may include a transmission processing unit 1211 and a reception processing unit 1212. The transceiver unit 120 may be composed of a transmitter/receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transceiver circuit, etc., which are described based on common understanding in the technical field related to the present disclosure.

The transmitter/receiver unit 120 may be configured as an integrated transmitter/receiver unit, or may be composed of a transmitter unit and a receiver unit. The transmitter unit may be composed of a transmission processing unit 1211 and an RF unit 122. The receiver unit may be composed of a reception processing unit 1212, an RF unit 122, and a measurement unit 123.

The transmitting and receiving antenna 130 may be composed of an antenna described based on common understanding in the technical field to which this disclosure relates, such as an array antenna.

The transceiver 120 may transmit the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transceiver 120 may receive the above-mentioned uplink channel, uplink reference signal, etc.

The transceiver unit 120 may form at least one of the transmit beam and the receive beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), etc.

The transceiver unit 120 (transmission processing unit 1211) may perform Packet Data Convergence Protocol (PDCP) layer processing, Radio Link Control (RLC) layer processing (e.g., RLC retransmission control), Medium Access Control (MAC) layer processing (e.g., HARQ retransmission control), etc. on data, control information, etc. obtained from the control unit 110, and generate a bit string to be transmitted.

The transmitter/receiver unit 120 (transmission processing unit 1211) may perform transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filtering, Discrete Fourier Transform (DFT) processing (if necessary), Inverse Fast Fourier Transform (IFFT) processing, precoding, and digital-to-analog conversion on the bit sequence to be transmitted, and output a baseband signal.

The transceiver unit 120 (RF unit 122) may perform modulation, filtering, amplification, etc. on the baseband signal to a radio frequency band, and transmit the radio frequency band signal via the transceiver antenna 130.

On the other hand, the transceiver unit 120 (RF unit 122) may perform amplification, filtering, demodulation to a baseband signal, etc. on the radio frequency band signal received by the transceiver antenna 130.

The transceiver unit 120 (receiving processing unit 1212) may apply receiving processing such as analog-to-digital conversion, Fast Fourier Transform (FFT) processing, Inverse Discrete Fourier Transform (IDFT) processing (if necessary), filtering, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal, thereby acquiring user data, etc.

The transceiver unit 120 (measurement unit 123) may perform measurements on the received signal. For example, the measurement unit 123 may perform Radio Resource Management (RRM) measurements, Channel State Information (CSI) measurements, etc. based on the received signal. The measurement unit 123 may measure received power (e.g., Reference Signal Received Power (RSRP)), received quality (e.g., Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)), signal strength (e.g., Received Signal Strength Indicator (RSSI)), propagation path information (e.g., CSI), etc. The measurement results may be output to the control unit 110.

The transmission path interface 140 may send and receive signals (backhaul signaling) between devices included in the core network 30, other base stations 10, etc., and may acquire and transmit user data (user plane data), control plane data, etc. for the user terminal 20.

In addition, the transmitting unit and receiving unit of the base station 10 in the present disclosure may be composed of at least one of the transmitting/receiving unit 120, the transmitting/receiving antenna 130, and the transmission path interface 140.

In addition, the transceiver unit 120 may transmit a configuration of a sounding reference signal (SRS) resource set and transmit downlink control information including multiple instructions for SRS resources within the SRS resource set. The control unit 110 may apply the multiple instructions to multiple frequency portions used for receiving non-codebook transmissions of the physical uplink shared channel, respectively.

In addition, the transceiver unit 120 may transmit resource configuration for the physical uplink control channel. The control unit 110 may control the reception of a sequence based on a cyclic shift that depends on the value of uplink control information of a specific type that is more than two bits, using the resources.

(user terminal)
16 is a diagram showing an example of the configuration of a user terminal according to one embodiment. The user terminal 20 includes a control unit 210, a transceiver unit 220, and a transceiver antenna 230. Note that the user terminal 20 may include one or more of each of the control unit 210, the transceiver unit 220, and the transceiver antenna 230.

Note that this example mainly shows the functional blocks of the characteristic parts of this embodiment, and it may be assumed that the user terminal 20 also has other functional blocks necessary for wireless communication. Some of the processing of each part described below may be omitted.

The control unit 210 controls the entire user terminal 20. The control unit 210 can be composed of a controller, a control circuit, etc., which are described based on common understanding in the technical field to which this disclosure relates.

The control unit 210 may control signal generation, mapping, etc. The control unit 210 may control transmission and reception, measurement, etc. using the transceiver unit 220 and the transceiver antenna 230. The control unit 210 may generate data, control information, sequences, etc. to be transmitted as signals and transfer them to the transceiver unit 220.

The transceiver unit 220 may include a baseband unit 221, an RF unit 222, and a measurement unit 223. The baseband unit 221 may include a transmission processing unit 2211 and a reception processing unit 2212. The transceiver unit 220 may be composed of a transmitter/receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transceiver circuit, etc., which are described based on common understanding in the technical field related to the present disclosure.

The transmitter/receiver unit 220 may be configured as an integrated transmitter/receiver unit, or may be composed of a transmitter unit and a receiver unit. The transmitter unit may be composed of a transmission processing unit 2211 and an RF unit 222. The receiver unit may be composed of a reception processing unit 2212, an RF unit 222, and a measurement unit 223.

The transmitting/receiving antenna 230 may be composed of an antenna described based on common understanding in the technical field to which this disclosure relates, such as an array antenna.

The transceiver unit 220 may receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transceiver unit 220 may transmit the above-mentioned uplink channel, uplink reference signal, etc.

The transceiver unit 220 may form at least one of the transmit beam and the receive beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), etc.

The transceiver unit 220 (transmission processing unit 2211) may perform PDCP layer processing, RLC layer processing (e.g., RLC retransmission control), MAC layer processing (e.g., HARQ retransmission control), etc. on data, control information, etc. obtained from the control unit 210, and generate a bit string to be transmitted.

The transceiver unit 220 (transmission processing unit 2211) may perform transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filtering, DFT processing (if necessary), IFFT processing, precoding, and digital-to-analog conversion on the bit sequence to be transmitted, and output a baseband signal.

Whether or not to apply DFT processing may be based on the settings of transform precoding. If transform precoding is enabled for a certain channel (e.g., PUSCH), the transceiver unit 220 (transmission processing unit 2211) may perform DFT processing as the transmission processing to transmit the channel using a DFT-s-OFDM waveform; if not, it may not be necessary to perform DFT processing as the transmission processing.

The transceiver unit 220 (RF unit 222) may perform modulation, filtering, amplification, etc. on the baseband signal to a radio frequency band, and transmit the radio frequency band signal via the transceiver antenna 230.

On the other hand, the transceiver unit 220 (RF unit 222) may perform amplification, filtering, demodulation to a baseband signal, etc. on the radio frequency band signal received by the transceiver antenna 230.

The transceiver unit 220 (receiving processing unit 2212) may apply receiving processing such as analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filtering, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal to acquire user data, etc.

The transceiver unit 220 (measurement unit 223) may perform measurements on the received signal. For example, the measurement unit 223 may perform RRM measurements, CSI measurements, etc. based on the received signal. The measurement unit 223 may measure received power (e.g., RSRP), received quality (e.g., RSRQ, SINR, SNR), signal strength (e.g., RSSI), propagation path information (e.g., CSI), etc. The measurement results may be output to the control unit 210.

In addition, the transmitting unit and receiving unit of the user terminal 20 in the present disclosure may be constituted by at least one of the transmitting/receiving unit 220 and the transmitting/receiving antenna 230.

The transceiver unit 220 may receive a configuration of a sounding reference signal (SRS) resource set and receive downlink control information including multiple instructions for SRS resources within the SRS resource set. The control unit 210 may apply the multiple instructions to multiple frequency portions used for non-codebook transmission of the physical uplink shared channel, respectively.

The number of the multiple frequency portions may be Y. The downlink control information may include Y or Y/2 fields for the SRS resources.

The physical uplink shared channel may include two codewords. The number of the frequency portions may be Y. The downlink control information may include 2Y fields for the SRS resources.

Each SRS resource in the SRS resource set may use a portion of the bandwidth of the physical uplink shared channel.

In addition, the transceiver unit 220 may receive resource configuration for the physical uplink control channel. The control unit 210 may control the transmission of a sequence based on a cyclic shift that depends on the value of uplink control information of a specific type that is more than two bits, using the resources.

The value may be associated with a first offset of at least one of a physical resource block index and a symbol index, and a second offset of a cyclic shift index.

The control unit may also arrange the uplink control information in at least one of a physical resource block and a symbol for each specific size.

The bandwidth of the physical uplink control channel may be more than one physical resource block.

(Hardware configuration)
The block diagrams used to explain the above embodiments show functional blocks. These functional blocks (components) are realized by any combination of hardware and/or software. Furthermore, the method for realizing each functional block is not particularly limited. That is, each functional block may be realized using a single device that is physically or logically coupled, or may be realized using two or more physically or logically separated devices that are directly or indirectly connected (e.g., wired, wireless, etc.) and these multiple devices. The functional block may also be realized by combining software with the single device or multiple devices.

Here, functions include, but are not limited to, judgment, determination, assessment, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, election, establishment, comparison, assumption, expectation, deeming, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assignment. For example, a functional block (component) that performs transmission functions may be called a transmitting unit or transmitter. As mentioned above, there are no particular limitations on how these functions are implemented.

For example, a base station, a user terminal, etc. in one embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure. Figure 17 is a diagram showing an example of the hardware configuration of a base station and a user terminal according to one embodiment. The above-mentioned base station 10 and user terminal 20 may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

In this disclosure, terms such as apparatus, circuit, device, section, and unit may be used interchangeably. The hardware configuration of the base station 10 and user terminal 20 may be configured to include one or more of the devices shown in the figures, or may be configured to exclude some of the devices.

For example, although only one processor 1001 is shown, there may be multiple processors. Furthermore, processing may be performed by one processor, or processing may be performed by two or more processors simultaneously, sequentially, or using other techniques. Furthermore, processor 1001 may be implemented by one or more chips.

Each function in the base station 10 and the user terminal 20 is realized, for example, by loading specified software (programs) onto hardware such as the processor 1001 and memory 1002, causing the processor 1001 to perform calculations, control communication via the communication device 1004, and control at least one of reading and writing data in the memory 1002 and storage 1003.

The processor 1001, for example, runs an operating system to control the entire computer. The processor 1001 may be configured as a central processing unit (CPU) including an interface with peripheral devices, a control unit, an arithmetic unit, registers, etc. For example, at least a portion of the above-mentioned control unit 110 (210), transceiver unit 120 (220), etc. may be realized by the processor 1001.

The processor 1001 also reads programs (program code), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and executes various processes in accordance with these. The programs used are those that cause a computer to execute at least some of the operations described in the above-described embodiments. For example, the control unit 110 (210) may be realized by a control program stored in the memory 1002 and running on the processor 1001, and similar implementations may be used for other functional blocks.

Memory 1002 is a computer-readable recording medium and may be composed of, for example, at least one of Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically EEPROM (EEPROM), Random Access Memory (RAM), or other suitable storage medium. Memory 1002 may also be referred to as a register, cache, main memory, etc. Memory 1002 may store executable programs (program code), software modules, etc. for implementing a wireless communication method according to one embodiment of the present disclosure.

Storage 1003 is a computer-readable recording medium and may be constituted by at least one of, for example, a flexible disk, a floppy disk, a magneto-optical disk (e.g., a compact disk (e.g., a Compact Disc ROM (CD-ROM)), a digital versatile disk, a Blu-ray disc), a removable disk, a hard disk drive, a smart card, a flash memory device (e.g., a card, stick, key drive), a magnetic stripe, a database, a server, or other suitable storage medium. Storage 1003 may also be referred to as an auxiliary storage device.

The communication device 1004 is hardware (transmitting/receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as a network device, network controller, network card, or communication module. The communication device 1004 may be configured to include a high-frequency switch, duplexer, filter, frequency synthesizer, etc. to implement at least one of Frequency Division Duplex (FDD) and Time Division Duplex (TDD). For example, the above-mentioned transmitter/receiver unit 120 (220), transmitter/receiver antenna 130 (230), etc. may be implemented by the communication device 1004. The transmitter/receiver unit 120 (220) may be implemented as a transmitter unit 120a (220a) and a receiver unit 120b (220b) that are physically or logically separated.

The input device 1005 is an input device (e.g., a keyboard, mouse, microphone, switch, button, sensor, etc.) that accepts input from the outside. The output device 1006 is an output device (e.g., a display, speaker, Light Emitting Diode (LED) lamp, etc.) that outputs to the outside. Note that the input device 1005 and the output device 1006 may be integrated into one structure (e.g., a touch panel).

Furthermore, each device such as the processor 1001 and memory 1002 is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or may be configured using different buses between each device.

Furthermore, the base station 10 and the user terminal 20 may be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), or a field programmable gate array (FPGA), and some or all of the functional blocks may be realized using such hardware. For example, the processor 1001 may be implemented using at least one of these pieces of hardware.

(Modification)
Note that terms described in the present disclosure and terms necessary for understanding the present disclosure may be replaced with terms having the same or similar meanings. For example, a channel, a symbol, and a signal (signal or signaling) may be interchangeable. A signal may also be a message. A reference signal may be abbreviated as RS, and may also be called a pilot, pilot signal, etc. depending on the applicable standard. A component carrier (CC) may also be called a cell, frequency carrier, carrier frequency, etc.

A radio frame may be composed of one or more periods (frames) in the time domain. Each of the one or more periods (frames) constituting a radio frame may be called a subframe. Furthermore, a subframe may be composed of one or more slots in the time domain. A subframe may have a fixed time length (e.g., 1 ms) that is independent of numerology.

Here, numerology may be a communication parameter applied to at least one of the transmission and reception of a signal or channel. Numerology may indicate, for example, at least one of subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame structure, specific filtering operations performed by the transceiver in the frequency domain, and specific windowing operations performed by the transceiver in the time domain.

A slot may consist of one or more symbols in the time domain (such as Orthogonal Frequency Division Multiplexing (OFDM) symbols or Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols). A slot may also be a time unit based on numerology.

A slot may include multiple minislots. Each minislot may consist of one or more symbols in the time domain. A minislot may also be called a subslot. A minislot may consist of fewer symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a minislot may be called PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a minislot may be called PDSCH (PUSCH) mapping type B.

Radio frame, subframe, slot, minislot, and symbol all represent time units for transmitting signals. Radio frame, subframe, slot, minislot, and symbol may be referred to by other names that correspond to them. Note that the time units such as frame, subframe, slot, minislot, and symbol used in this disclosure may be interpreted interchangeably.

For example, one subframe may be referred to as a TTI, multiple consecutive subframes may be referred to as a TTI, or one slot or one minislot may be referred to as a TTI. In other words, at least one of a subframe and a TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (e.g., 1-13 symbols), or a period longer than 1 ms. Note that the unit representing a TTI may be called a slot, minislot, etc. instead of a subframe.

Here, TTI refers to, for example, the smallest time unit for scheduling in wireless communication. For example, in an LTE system, a base station schedules each user terminal by allocating radio resources (such as frequency bandwidth and transmission power that can be used by each user terminal) in TTI units. Note that the definition of TTI is not limited to this.

A TTI may be a transmission time unit for a channel-coded data packet (transport block), code block, code word, etc., or may be a processing unit for scheduling, link adaptation, etc. Note that when a TTI is given, the time interval (e.g., the number of symbols) to which a transport block, code block, code word, etc. is actually mapped may be shorter than the TTI.

Note that when one slot or one minislot is referred to as a TTI, one or more TTIs (i.e., one or more slots or one or more minislots) may be the smallest time unit for scheduling. Furthermore, the number of slots (minislots) constituting the smallest time unit for scheduling may be controlled.

A TTI with a time length of 1 ms may be referred to as a regular TTI (TTI in 3GPP Rel. 8-12), normal TTI, long TTI, regular subframe, normal subframe, long subframe, slot, etc. A TTI shorter than a regular TTI may be referred to as a shortened TTI, short TTI, partial TTI (partial or fractional TTI), shortened subframe, short subframe, minislot, subslot, slot, etc.

Note that a long TTI (e.g., a normal TTI, a subframe, etc.) may be interpreted as a TTI having a time length of more than 1 ms, and a short TTI (e.g., a shortened TTI, etc.) may be interpreted as a TTI having a TTI length shorter than that of a long TTI and greater than or equal to 1 ms.

A resource block (RB) is a resource allocation unit in the time domain and frequency domain, and may include one or more consecutive subcarriers in the frequency domain. The number of subcarriers included in an RB may be the same regardless of numerology, for example, 12. The number of subcarriers included in an RB may also be determined based on numerology.

In addition, an RB may include one or more symbols in the time domain and may be one slot, one minislot, one subframe, or one TTI in length. One TTI, one subframe, etc. may each be composed of one or more resource blocks.

In addition, one or more RBs may also be referred to as a physical resource block (PRB), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, etc.

A resource block may also be composed of one or more resource elements (REs). For example, one RE may be a radio resource region of one subcarrier and one symbol.

A Bandwidth Part (BWP) (which may also be referred to as a partial bandwidth) may represent a subset of contiguous common resource blocks (RBs) for a given numerology on a given carrier, where the common RBs may be identified by their index relative to a Common Reference Point of the carrier. PRBs may be defined in a BWP and numbered within that BWP.

BWPs may include UL BWPs (BWPs for UL) and DL BWPs (BWPs for DL). One or more BWPs may be configured for a UE within one carrier.

At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal/channel outside the active BWP. Note that the terms "cell," "carrier," etc. in this disclosure may be read as "BWP."

Note that the structures of the radio frames, subframes, slots, minislots, and symbols described above are merely examples. For example, the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of subcarriers included in an RB, as well as the number of symbols in a TTI, symbol length, and cyclic prefix (CP) length can be varied in various ways.

Furthermore, the information, parameters, etc. described in this disclosure may be expressed using absolute values, relative values from a predetermined value, or other corresponding information. For example, radio resources may be indicated by a predetermined index.

The names used for parameters and the like in this disclosure are not intended to be limiting in any way. Furthermore, the mathematical formulas and the like using these parameters may differ from those explicitly disclosed in this disclosure. The various channels (PUCCH, PDCCH, etc.) and information elements may be identified by any suitable names, and therefore the various names assigned to these various channels and information elements are not intended to be limiting in any way.

The information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

In addition, information, signals, etc. may be output from a higher layer to a lower layer and/or from a lower layer to a higher layer. Information, signals, etc. may be input/output via multiple network nodes.

Input and output information, signals, etc. may be stored in a specific location (e.g., memory) or managed using a management table. Input and output information, signals, etc. may be overwritten, updated, or added to. Output information, signals, etc. may be deleted. Input information, signals, etc. may be transmitted to another device.

The notification of information is not limited to the aspects/embodiments described in the present disclosure and may be performed using other methods. For example, the notification of information in the present disclosure may be performed using physical layer signaling (e.g., Downlink Control Information (DCI) and Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, broadcast information (Master Information Block (MIB) and System Information Block (SIB)), Medium Access Control (MAC) signaling), other signals, or a combination thereof.

Note that physical layer signaling may also be referred to as Layer 1/Layer 2 (L1/L2) control information (L1/L2 control signal), L1 control information (L1 control signal), etc. Furthermore, RRC signaling may also be referred to as RRC messages, such as RRC Connection Setup messages and RRC Connection Reconfiguration messages. Furthermore, MAC signaling may also be notified using, for example, MAC Control Elements (CEs).

Furthermore, notification of specified information (e.g., notification that "it is X") is not limited to explicit notification, but may also be made implicitly (e.g., by not notifying the specified information or by notifying other information).

The determination may be made by a value represented by a single bit (0 or 1), by a Boolean value represented by true or false, or by a numerical comparison (e.g., comparison with a predetermined value).

Software shall be construed 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, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.

Software, instructions, information, etc. may also be transmitted and received via a transmission medium. For example, if software is transmitted from a website, server, or other remote source using wired technologies (such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL)), and/or wireless technologies (such as infrared, microwave), these wired and/or wireless technologies are included within the definition of transmission media.

As used in this disclosure, the terms "system" and "network" may be used interchangeably. "Network" may refer to devices included in the network (e.g., base stations).

In this disclosure, terms such as "precoding," "precoder," "weight (precoding weight)," "Quasi-Co-Location (QCL)," "Transmission Configuration Indication state (TCI state)," "spatial relation," "spatial domain filter," "transmit power," "phase rotation," "antenna port," "antenna port group," "layer," "number of layers," "rank," "resource," "resource set," "resource group," "beam," "beam width," "beam angle," "antenna," "antenna element," and "panel" may be used interchangeably.

In this disclosure, terms such as "Base Station (BS)," "Radio Base Station," "Fixed Station," "NodeB," "eNB (eNodeB)," "gNB (gNodeB)," "Access Point," "Transmission Point (TP)," "Reception Point (RP)," "Transmission/Reception Point (TRP)," "Panel," "Cell," "Sector," "Cell Group," "Carrier," and "Component Carrier" may be used interchangeably. Base stations may also be referred to by terms such as macrocell, small cell, femtocell, and picocell.

A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, the entire coverage area of the base station can be divided into multiple smaller areas, and each smaller area can also be provided with communication services by a base station subsystem (e.g., a small indoor base station (Remote Radio Head (RRH))). The terms "cell" or "sector" refer to part or all of the coverage area of a base station and/or base station subsystem that provides communication services within this coverage area.

In this disclosure, terms such as "Mobile Station (MS)," "user terminal," "User Equipment (UE)," and "terminal" may be used interchangeably.

A mobile station may also be referred to 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, handset, user agent, mobile client, client, or some other suitable terminology.

At least one of the base station and the mobile station may be referred to as a transmitting device, a receiving device, a wireless communication device, etc. Note that at least one of the base station and the mobile station may be a device mounted on a moving object, the moving object itself, etc.

The term "mobile body" refers to a movable object that can move at any speed and naturally includes cases where the mobile body is stationary. Examples of such mobile bodies include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, handcarts, rickshaws, ships and other watercraft, airplanes, rockets, satellites, drones, multicopters, quadcopters, balloons, and objects carried by these. Furthermore, the mobile body may be a mobile body that moves autonomously based on operational commands.

The mobile object may be a vehicle (e.g., a car, an airplane, etc.), an unmanned mobile object (e.g., a drone, a self-driving car, etc.), or a robot (manned or unmanned). Note that at least one of the base station and the mobile station may also include devices that do not necessarily move during communication operations. For example, at least one of the base station and the mobile station may be an Internet of Things (IoT) device such as a sensor.

Figure 18 is a diagram showing an example of a vehicle according to one embodiment. As shown in Figure 18, the vehicle 40 includes a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a shift lever 45, left and right front wheels 46, left and right rear wheels 47, an axle 48, an electronic control unit 49, various sensors (including a current sensor 50, an RPM sensor 51, an air pressure sensor 52, a vehicle speed sensor 53, an acceleration sensor 54, an accelerator pedal sensor 55, a brake pedal sensor 56, a shift lever sensor 57, and an object detection sensor 58), an information service unit 59, and a communication module 60.

The drive unit 41 is composed of, for example, at least one of an engine, a motor, or a hybrid of an engine and a motor. The steering unit 42 includes at least a steering wheel (also called a handle) and is configured to steer at least one of the front wheels 46 and the rear wheels 47 based on the operation of the steering wheel operated by the user.

The electronic control unit 49 is composed of a microprocessor 61, memory (ROM, RAM) 62, and a communication port (e.g., an input/output (IO) port) 63. Signals are input to the electronic control unit 49 from various sensors 50-58 provided in the vehicle. The electronic control unit 49 may also be called an Electronic Control Unit (ECU).

Signals from the various sensors 50-58 include a current signal from a current sensor 50 that senses the motor current, a rotation speed signal for the front wheels 46/rear wheels 47 obtained by a rotation speed sensor 51, an air pressure signal for the front wheels 46/rear wheels 47 obtained by an air pressure sensor 52, a vehicle speed signal obtained by a vehicle speed sensor 53, an acceleration signal obtained by an acceleration sensor 54, a depression amount signal for the accelerator pedal 43 obtained by an accelerator pedal sensor 55, a depression amount signal for the brake pedal 44 obtained by a brake pedal sensor 56, an operation signal for the shift lever 45 obtained by a shift lever sensor 57, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by an object detection sensor 58.

The information service unit 59 is composed of various devices, such as a car navigation system, audio system, speakers, displays, televisions, and radios, that provide various information such as driving information, traffic information, and entertainment information, as well as one or more ECUs that control these devices. The information service unit 59 uses information obtained from external devices via the communication module 60, etc., to provide various information/services (e.g., multimedia information/multimedia services) to the occupants of the vehicle 40.

The driving assistance system unit 64 is composed of various devices that provide functions to prevent accidents and reduce the driver's driving burden, such as millimeter-wave radar, Light Detection and Ranging (LiDAR), cameras, positioning locators (e.g., Global Navigation Satellite System (GNSS)), map information (e.g., High Definition (HD) maps, Autonomous Vehicle (AV) maps), gyro systems (e.g., Inertial Measurement Unit (IMU) and Inertial Navigation System (INS)), artificial intelligence (AI) chips, and AI processors, as well as one or more ECUs that control these devices. The driving assistance system unit 64 also transmits and receives various information via the communication module 60 to realize driving assistance or autonomous driving functions.

The communication module 60 can communicate with the microprocessor 61 and components of the vehicle 40 via the communication port 63. For example, the communication module 60 transmits and receives data (information) via the communication port 63 between the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, shift lever 45, left and right front wheels 46, left and right rear wheels 47, axles 48, the microprocessor 61 and memory (ROM, RAM) 62 in the electronic control unit 49, and various sensors 50-58, all of which are provided on the vehicle 40.

The communication module 60 is a communication device that can be controlled by the microprocessor 61 of the electronic control unit 49 and can communicate with external devices. For example, it transmits and receives various information to and from external devices via wireless communication. The communication module 60 may be located either inside or outside the electronic control unit 49. The external device may be, for example, the base station 10 or user terminal 20 described above. Furthermore, the communication module 60 may be, for example, at least one of the base station 10 and user terminal 20 described above (or may function as at least one of the base station 10 and user terminal 20).

The communication module 60 may transmit at least one of the signals from the various sensors 50-58 input to the electronic control unit 49 and information obtained based on the signals to an external device via wireless communication.

The communication module 60 receives various information (traffic information, traffic signal information, vehicle distance information, etc.) transmitted from external devices and displays it on the information service unit 59 provided in the vehicle. The communication module 60 also stores the various information received from external devices in memory 62 that can be used by the microprocessor 61. Based on the information stored in memory 62, the microprocessor 61 may control the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, shift lever 45, left and right front wheels 46, left and right rear wheels 47, axles 48, various sensors 50-58, and other components provided in the vehicle 40.

Furthermore, the base station in the present disclosure may be read as a user terminal. For example, each aspect/embodiment of the present disclosure may be applied to a configuration in which communication between a base station and a user terminal is replaced with communication between multiple user terminals (which may be called, for example, Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.). In this case, the user terminal 20 may be configured to have the functions possessed by the base station 10 described above. Furthermore, terms such as "uplink" and "downlink" may be read as terms corresponding to communication between terminals (for example, "sidelink"). For example, terms such as uplink channel and downlink channel may be read as sidelink channel.

Similarly, the user terminal in this disclosure may be interpreted as a base station. In this case, the base station 10 may be configured to have the functions of the user terminal 20 described above.

In this disclosure, operations described as being performed by a base station may in some cases also be performed by its upper node. It is clear that in a network including one or more network nodes having base stations, various operations performed for communication with terminals may be performed by the base station, one or more network nodes other than the base station (such as, but not limited to, a Mobility Management Entity (MME), a Serving-Gateway (S-GW), etc.), or a combination thereof.

Each aspect/embodiment described in this disclosure may be used alone, in combination, or switched between depending on the implementation. Furthermore, the processing procedures, sequences, flowcharts, etc. of each aspect/embodiment described in this disclosure may be rearranged unless inconsistent. For example, the methods described in this disclosure present elements of various steps in an exemplary order, and are not limited to the particular order presented.

The aspects/embodiments described in this disclosure may be implemented using standards such as Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG (x is, for example, an integer or decimal number)), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.17 (WiMAX (registered trademark)), IEEE 802.18 (WiMAX (registered trademark)), IEEE 802.19 (WiMAX (registered trademark)), IEEE 802.20 (WiMAX (registered trademark)), IEEE 802.21 (Wi-Fi (registered trademark)), IEEE 802.22 (WiMAX (registered trademark)), IEEE 802.23 (WiMAX (registered trademark)), IEEE 802.24 (WiMAX (registered trademark)), IEEE 802.25 (WiMAX (registered trademark)), IEEE 802.26 (WiMAX (registered trademark)), IEEE 802.27 (WiMAX (registered trademark)), IEEE 802.28 (WiMAX (registered trademark)), IEEE 802.29 ... The present invention may be applied to systems that use IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), or other suitable wireless communication methods, or to next-generation systems that are expanded, modified, created, or defined based on these. Furthermore, the present invention may be applied to a combination of multiple systems (e.g., a combination of LTE or LTE-A and 5G).

As used in this disclosure, the phrase "based on" does not mean "based only on," unless expressly stated otherwise. In other words, the phrase "based on" means both "based only on" and "based at least on."

As used in this disclosure, any reference to an element using a designation such as "first," "second," etc. does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, a reference to a first and a second element does not imply that only two elements may be employed or that the first element must in some way precede the second element.

As used in this disclosure, the term "determining" may encompass a wide variety of actions. For example, "determining" may be considered to be judging, calculating, computing, processing, deriving, investigating, looking up, search, inquiry (e.g., searching in a table, database, or another data structure), ascertaining, etc.

"Determining" may also be considered to be "determining" receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in memory), etc.

"Judgment" may also be considered to be "deciding" on resolving, selecting, choosing, establishing, comparing, etc. In other words, "judgment" may also be considered to be "deciding" on some action.

In addition, "judgment (decision)" can also be interpreted as "assuming," "expecting," "considering," etc.

The term "maximum transmit power" used in this disclosure may mean the maximum value of transmit power, the nominal UE maximum transmit power, or the rated UE maximum transmit power.

As used in this disclosure, the terms "connected," "coupled," or any variation thereof, mean any direct or indirect connection or 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 elements may be physical, logical, or a combination thereof. For example, "connected" may be read as "access."

For the purposes of this disclosure, when two elements are connected, they may be considered to be "connected" or "coupled" to one another using one or more wires, cables, printed electrical connections, etc., as well as using electromagnetic energy having wavelengths in the radio frequency range, microwave range, light (both visible and invisible) range, etc., as some non-limiting and non-exhaustive examples.

In this disclosure, the term "A and B are different" may mean "A and B are different from each other." The term may also mean "A and B are each different from C." Terms such as "separate" and "combined" may also be interpreted in the same way as "different."

When the terms "include," "including," and variations thereof are used in this disclosure, these terms are intended to be inclusive, similar to the term "comprising." Furthermore, when the term "or" is used in this disclosure, it is not intended to be an exclusive or.

In this disclosure, where articles are added by translation, such as a, an, and the in English, this disclosure may include the noun following these articles being plural.

The invention according to the present disclosure has been described in detail above, but it will be clear to those skilled in the art that the invention according to the present disclosure is not limited to the embodiments described herein. The invention according to the present disclosure can be implemented in modified and altered forms without departing from the spirit and scope of the invention as defined by the claims. Therefore, the description of the present disclosure is intended to be illustrative and explanatory and does not pose any limiting meaning to the invention according to the present disclosure.

Claims (6)

a receiving unit for receiving a resource configuration of a physical uplink control channel;
a control unit that controls transmission of a sequence based on a cyclic shift that depends on a value of uplink control information of a specific type that is more than two bits, using the resource ;
The value is associated with a first offset of at least one of a physical resource block index and a symbol index, and a second offset of a cyclic shift index . The terminal according to claim 1 , wherein the control unit allocates the uplink control information to at least one of a physical resource block and a symbol for each specific size. The terminal according to claim 1 or 2 , wherein the bandwidth of the physical uplink control channel is more than one physical resource block. receiving a configuration of resources for a physical uplink control channel;
and controlling transmission of a sequence based on a cyclic shift that depends on a value of uplink control information of more than two bits of a specific type using the resource ;
The value is associated with a first offset of at least one of a physical resource block index and a symbol index, and a second offset of a cyclic shift index . a transmitter for transmitting a resource configuration of a physical uplink control channel;
a control unit that controls receiving, using the resource, a sequence based on a cyclic shift that depends on a value of uplink control information of a specific type that is more than two bits ;
The base station , wherein the value is associated with a first offset of at least one of a physical resource block index and a symbol index, and a second offset of a cyclic shift index . A system comprising the terminal according to claim 1 and a base station,
The base station comprises a transmitter that transmits the configuration.