CN117256118A

CN117256118A - Method and device for transmitting uplink control information

Info

Publication number: CN117256118A
Application number: CN202280024987.3A
Authority: CN
Inventors: 柳向善; 梁锡喆
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2021-04-06
Filing date: 2022-04-05
Publication date: 2023-12-19

Abstract

A method and apparatus for determining the number of coded modulation symbols for Uplink Control Information (UCI) when UCI is transmitted via a TBoMS PUSCH to which transport block processing (TBoMS) over multiple slots has been applied in a wireless communication system are provided. The number of coded modulation symbols for UCI is determined based on the total number of bits transmitted via TBoMS PUSCH and a value obtained by multiplying the number of slots (Z) configured for TBoMS PUSCH by the sum of the number of resource elements that can be used for transmission of UCI in an OFDM symbol for TBoMS PUSCH in one slot through which UCI is transmitted among a plurality of slots.

Description

Method and device for transmitting uplink control information

Technical Field

The present disclosure relates to a method for transmitting uplink control information in a wireless communication system and an apparatus using the same.

Background

As more and more communication devices require higher communication capacity, advanced mobile broadband communication is required compared to existing Radio Access Technologies (RATs). Large-scale Machine Type Communication (MTC) that provides various services anytime and anywhere by connecting a plurality of devices and a plurality of objects is also a major problem to be considered in next-generation communication. Furthermore, the design of a communication system that considers reliability and latency sensitive services or User Equipments (UEs) is being discussed. The introduction of next generation RATs in view of enhanced mobile broadband communications, large-scale MTC, and ultra-reliable low latency communications (URLLC) is under discussion. In this disclosure, for convenience of description, this technology may be referred to as a new RAT or New Radio (NR). NR is also known as a fifth generation (5G) system.

In existing wireless communication systems, transport Blocks (TBs) are mapped to one transmission time interval (TTI, e.g., slot) and transmitted. However, in future wireless communication systems such as NR, transport blocks may be mapped to a plurality of TTIs (slots) and transmitted. This is called TB processing over multiple timeslots (TBoMS). The TBoMS may be applied to Physical Uplink Shared Channel (PUSCH) transmission, and the PUSCH to which the TBoMS is applied may be referred to as a TBoMS PUSCH. Repeated transmissions can also be applied to TBoMS PUSCH transmissions to improve coverage.

Meanwhile, in some cases, uplink Control Information (UCI) may be transmitted through PUSCH. At this time, it is necessary to determine the number of resource elements for UCI (the number of coded modulation symbols of UCI in an equivalent sense). Since the conventional standard technique assumes that PUSCH is transmitted in one slot, it is difficult to apply the conventional standard technique as it is when UCI is multiplexed and transmitted on TBoMS PUSCH.

Disclosure of Invention

Technical problem

The technical problem to be solved by the present disclosure is to provide a method for transmitting uplink control information in a wireless communication system and an apparatus using the same.

Technical proposal

The present specification provides a method of a device for transmitting Uplink Control Information (UCI), a method of receiving UCI, and a device using the same. Specifically, a device (e.g., UE) determines the number of compiled modulation symbols of UCI and transmits UCI on TBoMS PUSCH transmitted over multiple slots. At this time, the transmission is based on the transmission of the UCI from the symbol index 0 to N in one slot among a plurality of slots ^PUSCH _symb,all -1 the sum of the number of resource elements in the OFDM symbol that can be used for transmission of UCI is multiplied by a value obtained for the number of slots (Z) configured for TBoMS PUSCH and the total number of bits transmitted through TBoMS PUSCH to determine the number of coded modulation symbols of UCI. N (N) ^PUSCH _symb,all Is the total number of OFDM symbols of PUSCH in one slot.

The device includes a transceiver for transmitting and receiving radio signals and a processor operative in conjunction with the transceiver. The processor performs the UCI transmission method described above.

The chipset in the device includes a processor and a memory coupled to the processor and storing instructions for execution by the processor. The processor performs the UCI transmission method described above.

The UCI transmission method described above may be performed by instructions in a computer-readable medium (CRM).

As for a base station, a UCI receiving method is provided. The method includes transmitting downlink control information indicating a number of slots (Z) of a TBoMS PUSCH to the UE, and receiving UCI from the UE via the TBoMS PUSCH transmitted through the plurality of slots. Based on indexing from symbol index 0 to N in one slot with UCI transmission among a plurality of slots ^PUSCH _symb,all -1 value obtained by multiplying the sum of the number of resource elements in an OFDM symbol that can be used for transmission of UCI by the number of slots (Z) configured for TBoMS PUSCH and by transmission over TBoMS PUSCH The total number of bits determines the number of coded modulation symbols of UCI. N (N) ^PUSCH _symb,all Is the total number of OFDM symbols of PUSCH in one slot.

The base station includes a transceiver for transmitting and receiving radio signals and a processor operating in conjunction with the transceiver, and the UCI receiving method may be performed by the processor.

Advantageous effects

According to the present disclosure, when UCI is multiplexed and transmitted on a TBoMS PUSCH transmitted through a plurality of slots, the number of resource elements required for transmission can be correctly calculated. Thus, the UE can determine the number of UCI transmissions according to the performance targeted by the base station. In addition, since misunderstanding about the number of UCI transmission resource elements does not occur between the base station and the UE, efficient communication is possible and ambiguity does not occur.

The effects that can be obtained by the specific examples of the present specification are not limited to the effects listed above. For example, there may be various technical effects that one of ordinary skill in the related art can understand or derive from the present specification. Therefore, the specific effects of the present specification are not limited to those explicitly described in the present specification, and may include various effects that can be understood or derived from the technical features of the present specification.

Drawings

Fig. 1 illustrates a system structure of a new generation radio access network (NG-RAN) to which NR is applied.

Fig. 2 is a diagram illustrating a radio protocol architecture for a user plane.

Fig. 3 is a diagram illustrating a wireless protocol architecture for a control plane.

Fig. 4 illustrates the functional division between NG-RAN and 5 GC.

Fig. 5 illustrates an example of a frame structure that can be applied in NR.

Fig. 6 illustrates a slot structure of an NR frame.

Fig. 7 illustrates the structure of a self-contained slot.

Fig. 8 illustrates physical channels and general signal transmission.

Fig. 9 illustrates PUSCH repetition type a.

Fig. 10 illustrates PUSCH repetition type B.

Fig. 11 illustrates a case in which TBoMS PUSCH transmission is repeated.

Fig. 12 illustrates a case in which multi-slot TB mapping and repeated PUSCH and PUCCH overlap are applied.

Fig. 13 illustrates a method in which a UE transmits Uplink Control Information (UCI) in a wireless communication system.

Fig. 14 is an example of an operation between a network (base station) and a UE.

Fig. 15 illustrates a wireless device applicable to the present specification.

Fig. 16 illustrates another example of a wireless device.

Fig. 17 shows an example of the structure of the signal processing module.

Fig. 18 shows another example of the structure of a signal processing module in a transmission apparatus.

Fig. 19 illustrates an example of a wireless communication device according to an embodiment of the present disclosure.

Fig. 20 shows another example of a wireless device applied to the present specification.

Fig. 21 illustrates a communication system 1 applied to the present specification.

Detailed Description

In this specification, "a or B" may mean "a only", "B only" or "both a and B". In other words, in the present specification, "a or B" may be interpreted as "a and/or B". For example, in this specification, "A, B or C" may mean any combination of "a only", "B only", "C only" or "A, B, C".

A slash (/) or comma as used in this specification may mean "and/or". For example, "A/B" may mean "A and/or B". Thus, "a/B" may mean "a only", "B only" or "both a and B". For example, "A, B, C" may mean "A, B or C".

In the present specification, "at least one of a and B" may mean "a only", "B only", or "both a and B". Further, in the present specification, the expression "at least one of a or B" or "at least one of a and/or B" may be interpreted as "at least one of a and B".

Further, in the present specification, "at least one of A, B and C" may mean "a only", "B only", "C only", or "A, B and C in any combination. Further, "at least one of A, B or C" or "at least one of A, B and/or C" may mean "at least one of A, B and C".

In addition, brackets used in this specification may mean "for example". Specifically, when indicated as "control information (PDCCH)", it may be intended that "PDCCH" is proposed as an example of "control information". That is, the "control information" of the present specification is not limited to "PDCCH", and "PDCCH" may be proposed as an example of the "control information". Further, when indicated as "control information (i.e., PDCCH)", it may also be meant to propose "PDCCH" as an example of "control information".

Technical features described separately in one drawing in the present specification may be implemented separately or may be implemented simultaneously.

For example, the wireless communication system to which the present disclosure relates may be referred to as an evolved UMTS terrestrial radio access network (E-UTRAN) or a Long Term Evolution (LTE)/LTE-a system.

The E-UTRAN includes at least one Base Station (BS) providing a control plane and a user plane to a User Equipment (UE). A UE may be fixed or mobile and may be referred to as another term such as a Mobile Station (MS), a User Terminal (UT), a Subscriber Station (SS), a Mobile Terminal (MT), a wireless device, a terminal, etc. A BS is typically a fixed station that communicates with the UEs and may be referred to by another terminology such as an evolved node B (eNB), a Base Transceiver System (BTS), an access point, a gNB, and so on.

The BSs are interconnected using an X2 interface. The BS is also connected to an Evolved Packet Core (EPC) using an S1 interface, more specifically to a Mobility Management Entity (MME) through an S1-MME, and to a serving gateway (S-GW) through an S1-U.

The EPC includes an MME, an S-GW, and a packet data network gateway (P-GW). The MME has access information of the UE or capability information of the UE, and such information is generally used for mobility management of the UE. The S-GW is a gateway with E-UTRAN as an endpoint. The P-GW is a gateway with PDN as an endpoint.

Hereinafter, a new radio access technology (new RAT, NR) will be described.

As more and more communication devices require more communication capacity, there is a need to obtain improved mobile broadband communication over existing radio access technologies. In addition, large-scale Machine Type Communication (MTC) that provides various services by connecting many devices and objects is one of the main problems to be considered in next-generation communication. In addition, communication system designs that consider reliability/delay sensitive services/UEs are being discussed. The introduction of next generation radio access technologies that consider enhanced mobile broadband communications (emmbb), large-scale MTC (emtc), ultra-reliable low latency communications (URLLC) is discussed. For convenience, this new technology may be referred to in this disclosure as a new radio access technology (new RAT or NR).

Fig. 1 illustrates a system structure of a next generation radio access network (NG-RAN) to which NR is applied.

Referring to fig. 1, the ng-RAN may include a gNB and/or an eNB providing user plane and control plane protocol termination to a UE. Fig. 1 illustrates a case where only the gNB is included. The gNB and the eNB are connected through an Xn interface. The gNB and eNB are connected to a 5G core network (5 GC) via an NG interface. More specifically, the gNB and eNB are connected to an access and mobility management function (AMF) via an NG-C interface and to a User Plane Function (UPF) via an NG-U interface.

The layers of the radio interface protocol between the UE and the network may be divided into a first layer (L1), a second layer (L2) and a third layer (L3) based on the lower three layers of the Open System Interconnection (OSI) simulation known in the communication system. Among them, a Physical (PHY) layer belonging to a first layer provides an information transfer service by using a physical channel, and a Radio Resource Control (RRC) layer belonging to a third layer serves to control radio resources between a UE and a network. For this, the RRC layer exchanges RRC messages between the UE and the BS.

Fig. 2 is a diagram illustrating a radio protocol architecture for a user plane. Fig. 3 is a diagram illustrating a wireless protocol architecture for a control plane. The user plane is a protocol stack for user data transmission. The control plane is a protocol stack for control signal transmission.

Referring to fig. 2 and 3, the phy layer provides an information transfer service to an upper layer through a physical channel. The PHY layer is connected to a Medium Access Control (MAC) layer, which is an upper layer of the PHY layer, through a transport channel. Data is transferred between the MAC layer and the PHY layer through a transport channel. The transport channels are classified according to how data is transferred over the radio interface and what characteristic data is transferred.

Through the physical channel, data moves between different PHY layers, i.e., PHY layers of the transmitter and the receiver. The physical channel may be modulated according to an Orthogonal Frequency Division Multiplexing (OFDM) scheme and uses time and frequency as radio resources.

The functions of the MAC layer include mapping between logical channels and transport channels and multiplexing/demultiplexing of transport blocks provided through physical channels on transport channels of MAC Service Data Units (SDUs) belonging to the logical channels. The MAC layer provides services to a Radio Link Control (RLC) layer through a logical channel.

The functions of the RLC layer include concatenation, segmentation, and reassembly of RLC SDUs. To ensure quality of service (QoS) of various types required through Radio Bearers (RBs), the RLC layer provides three types of operation modes: transparent Mode (TM), non-responsive mode (UM), and responsive mode (AM). AM RLC provides error correction through automatic repeat request (ARQ).

The RRC layer is defined only in the control plane. The RRC layer is related to configuration, reconfiguration, and release of radio bearers and is responsible for control for logical channels, transport channels, and physical channels. The RB means a logical path provided through the first layer (PHY layer) and the second layer (MAC layer, RLC layer, and PDCP layer) in order to transfer data between the UE and the network.

The functions of the Packet Data Convergence Protocol (PDCP) on the user plane include delivery of user data and header compression, as well as ciphering. The functions of the PDCP layer on the control plane include control plane data delivery and ciphering/integrity protection.

RB configured means a process of defining characteristics of radio protocol layers and channels in order to provide a specific service and configuring each detailed parameter and operation method. RBs can be divided into two types of Signaling RBs (SRBs) and Data RBs (DRBs). The SRB is used as a channel through which RRC messages are transmitted on the control plane, and the DRB is used as a channel through which user data are transmitted on the user plane.

If an RRC connection is established between the RRC layer of the UE and the RRC layer of the E-UTRAN, the UE is in an RRC connected state. If not, the UE is in RRC idle state.

The downlink transport channels through which data is transmitted from the network to the UE include a Broadcast Channel (BCH) through which system information is transmitted and a downlink Shared Channel (SCH) through which user traffic or control messages are transmitted. Traffic or control messages for a downlink multicast or broadcast service may be transmitted through a downlink SCH or may be transmitted through an additional downlink Multicast Channel (MCH). Meanwhile, an uplink transport channel through which data is transmitted from the UE to the network includes a Random Access Channel (RACH) through which an initial control message is transmitted and an uplink Shared Channel (SCH) through which user traffic or a control message is transmitted.

Logical channels that are placed over and mapped to the transport channels include a Broadcast Control Channel (BCCH), a Paging Control Channel (PCCH), a Common Control Channel (CCCH), a Multicast Control Channel (MCCH), and a Multicast Traffic Channel (MTCH).

The physical channel includes a number of OFDM symbols in the time domain and a number of subcarriers in the frequency domain. One subframe includes a plurality of OFDM symbols in the time domain. An RB is a resource allocation unit and includes a plurality of OFDM symbols and a plurality of subcarriers. Further, each subframe may use a specific subcarrier for a specific OFDM symbol (e.g., a first OFDM symbol) of a corresponding subframe of a Physical Downlink Control Channel (PDCCH), i.e., an L1/L2 control channel. A Transmission Time Interval (TTI) is a unit time for transmission, such as a slot/subframe.

Fig. 4 illustrates the functional division between NG-RAN and 5 GC.

Referring to fig. 4, the gnb may provide functions such as inter-cell radio resource management (inter-cell RRM), radio bearer management (RB control), connection mobility control, radio admission control, measurement configuration and provisioning, dynamic resource allocation, and the like. The AMF may provide functions such as NAS security, idle state mobility handling, etc. The UPF may provide functions such as mobility anchoring, PDU processing, and the like. The SMF may provide functions such as UE IP address assignment, PDU session control, etc.

Fig. 5 illustrates an example of a frame structure that can be applied in NR.

Referring to fig. 5, a radio frame (which may be referred to as a frame hereinafter) may be used for uplink and downlink transmission in NR. The Frame has a length of 10ms and may be defined as two 5ms fields (haloframe, HF). A field may be defined as five 1ms Subframes (SFs). The subframe may be divided into one or more slots, and the number of slots in the subframe depends on a subcarrier spacing (SCS). Each slot includes 12 or 14 OFDM (a) symbols according to a Cyclic Prefix (CP). When normal CP is used, each slot includes 14 symbols. When the extended CP is used, each slot includes 12 symbols. Here, the symbols may include OFDM symbols (or CP-OFDM symbols) and SC-FDMA symbols (or DFT-s-OFDM symbols).

Table 1 below illustrates subcarrier spacing configuration μ.

TABLE 1

Table 2 below illustrates the number of slots (N) in a frame with μ configured according to subcarrier spacing ^frame,μ _slot ) Number of slots in subframe (N ^subframe,μ _slot ) Number of symbols in a slot (N ^slot _symb ) Etc.

TABLE 2

In fig. 5, μ=0, 1, 2, and 3 are illustrated.

Table 2-1 below illustrates that when the extended CP is used, the number of symbols per slot, the number of slots per frame, and the number of slots per subframe vary according to SCS (μ=2, 60 KHz).

[ Table 2-1]

μ	N ^slot _symb	N ^frame,u _slot	N ^subframe,u _slot
				2	12	40	4

In an NR system, an OFDM (a) parameter set (e.g., SCS, CP length, etc.) may be configured differently among a plurality of cells integrated into one UE. Thus, the (absolute time) duration of time resources (e.g., SF, time slots, or TTI) (collectively referred to as Time Units (TUs) for convenience) configured by the same number of symbols may be configured differently among integrated cells.

Fig. 6 illustrates a slot structure of an NR frame.

A slot may include multiple symbols in the time domain. For example, in the case of a normal CP, one slot may include 14 symbols. However, in the case of the extended CP, one slot may include 12 symbols. The carrier may comprise a plurality of subcarriers in the frequency domain. A Resource Block (RB) may be defined as a plurality of consecutive subcarriers (e.g., 12 subcarriers) in the frequency domain. The bandwidth part (BWP) may be defined as a plurality of consecutive (physical) resource blocks ((P) RBs) in the frequency domain, and may correspond to one parameter set (e.g., SCS, CP length, etc.). The carrier may include a maximum of N (e.g., 5) BWPs. The data communication may be performed through the activated BWP and only one BWP may be activated for one UE. Each element in the resource grid may be referred to as a Resource Element (RE) and may have one complex symbol mapped thereto.

The Physical Downlink Control Channel (PDCCH) may include one or more Control Channel Elements (CCEs), as illustrated in table 3 below.

TABLE 3

Aggregation level	Number of CCE
		1	1
2	2
		4	4
8	8
		16	16

That is, the PDCCH may be transmitted through a resource including 1,2, 4, 8, or 16 CCEs. Here, the CCE includes six Resource Element Groups (REGs), and one REG includes one resource block in a frequency domain and one Orthogonal Frequency Division Multiplexing (OFDM) symbol in a time domain.

Monitoring means decoding each PDCCH candidate according to a Downlink Control Information (DCI) format. The UE monitors a set of PDCCH candidates in one or more CORESET (described below) on an active DL BWP of each active serving cell, wherein PDCCH monitoring is configured for each active serving cell according to a respective set of search spaces.

A new element called control resource set (CORESET) may be introduced in the NR. The UE may receive the PDCCH in CORESET.

CORESET includes N in the frequency domain ^CORESET _RB N in time domain and each resource block ^CORESET _symb E {1,2,3} symbols. N (N) ^CORESET _RB And N ^CORESET _symb May be provided by the base station via higher layer signaling. Multiple CCEs (or REGs) may be included in CORESET. One CCE may be composed of a plurality of Resource Element Groups (REGs), and one REG may include one OFDM symbol in the time domain and 12 resource elements in the frequency domain.

The UE may attempt to detect the PDCCH in units of 1, 2, 4, 8, or 16 CCEs in CORESET. One or more CCEs in which PDCCH detection may be attempted may be referred to as PDCCH candidates.

A terminal may be configured with multiple CORESETs.

The control region in a conventional wireless communication system (e.g., LTE/LTE-a) is configured over the entire system band used by a Base Station (BS). All UEs excluding some UEs supporting only narrowband (e.g., eMTC/NB-IoT UEs) should be able to receive the wireless signals of the BS's entire system band in order to properly receive/decode the control information sent by the BS.

On the other hand, in NR, the above CORESET was introduced. CORESET is a radio resource for control information to be received by the UE and may use only a part of the system bandwidth in the frequency domain instead of the whole. In addition, in the time domain, only some of the symbols in the slot may be used. The BS may assign CORESET to each UE and may transmit control information through the assigned CORESET.

CORESET may include a UE-specific CORESET for transmitting UE-specific control information and a common CORESET for transmitting control information common to all UEs.

Meanwhile, NR may require high reliability depending on the application. In this case, a target block error rate (BLER) of Downlink Control Information (DCI) transmitted through a downlink control channel (e.g., a Physical Downlink Control Channel (PDCCH)) may be significantly reduced compared to those of the conventional art. As an example of a method for satisfying the requirement of high reliability, it is possible to reduce content included in DCI and/or increase the amount of resources for DCI transmission. Here, the resources may include at least one of resources in a time domain, resources in a frequency domain, resources in a code domain, and resources in a spatial domain.

In NR, the following techniques/features can be applied.

< self-contained subframe Structure >

In NR, a structure in which a control channel and a data channel are time-division multiplexed within one TTI can be regarded as a frame structure in order to minimize a delay.

Downlink (DL) transmission and Uplink (UL) transmission are sequentially performed within one subframe and thus DL data can be transmitted and UL ACK/NACK (acknowledgement/negative acknowledgement) can be received within the subframe. Accordingly, the time required from the occurrence of a data transmission error to the retransmission of data is reduced, thereby minimizing the delay in the final data transmission.

In such a data and control TMD subframe structure, a time gap for the base station and the terminal to switch from a transmission mode to a reception mode or from a reception mode to a transmission mode may be required. For this, some OFDM symbols at the time of DL switching to UL may be set as a Guard Period (GP) in the self-contained subframe structure.

Fig. 7 illustrates the structure of a self-contained slot.

In the NR system, one slot includes all of DL control channel, DL or UL data channel, UL control channel, and the like. For example, the first N symbols in a slot may be used to transmit a DL control channel (hereinafter, DL control region), and the last M symbols in a slot may be used to transmit a UL control channel (hereinafter, UL control region). N and M are each integers of 0 or more. A resource region (hereinafter, a data region) located between DL and UL control regions may be used for transmission of DL data or UL data. As one example, one slot may correspond to one of the following configurations. Each time period is listed in chronological order.

1. DL-only configuration

2. UL-only configuration

3. Hybrid UL-DL configuration

DL region+gp (guard period) +ul control region

DL control region+gp+ul region

DL region: (i) DL data area, (ii) DL control area + DL data area,

UL region: (i) UL data region, (ii) UL data region+ul control region

The PDCCH may be transmitted in a DL control region and the PDSCH may be transmitted in a DL data region. In the UL control region, PUCCH may be transmitted, and in the UL data region, PUSCH may be transmitted. In the PDCCH, downlink Control Information (DCI), for example, DL data scheduling information or UL data scheduling information, may be transmitted. In the PUCCH, uplink Control Information (UCI) such as ACK/NACK (acknowledgement/negative acknowledgement) information, channel State Information (CSI) information, or Scheduling Request (SR) regarding DL data may be transmitted. The GP provides a time gap during a process of the gNB and the UE transitioning from a transmit mode to a receive mode or a process of the gNB and the UE transitioning from a receive mode to a transmit mode. A partial symbol belonging to a timing of a mode change from DL to UL within a subframe may be configured as GP.

In NR, in the time domain, a synchronization signal block (SSB, or also referred to as a synchronization signal and physical broadcast channel (SS/PBCH) block) may be composed of 4 OFDM symbols indexed from 0 to 3 in ascending order within the synchronization signal block, and a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSs), and a PBCH associated with a demodulation reference signal (DMRS) may be mapped to the symbols. As described above, the synchronization signal block may also be represented by an SS/PBCH block.

In NR, since a plurality of Synchronization Signal Blocks (SSBs) may be transmitted at different times, respectively, and SSBs may be used to perform Initial Access (IA), serving cell measurement, etc., it is preferable to transmit SSBs first when transmission times and resources of SSBs overlap with those of other signals. To this end, the network may broadcast the transmission time and resource information of SSBs or indicate them through UE-specific RRC signaling.

Fig. 8 illustrates physical channels and typical signal transmissions.

Referring to fig. 8, in a wireless communication system, a UE receives information from a BS through a Downlink (DL) and transmits information to the BS through an Uplink (UL). The information transmitted/received by the BS and the UE includes data and various control information, and various physical channels exist according to the type/purpose of the information transmitted/received by the BS and the UE.

The UE that is powered on again or newly enters the cell in the off state performs an initial cell search operation such as adjusting synchronization with the BS, etc. (S11). To this end, the UE receives a Primary Synchronization Channel (PSCH) and a Secondary Synchronization Channel (SSCH) from the BS to adjust synchronization with the BS, and acquires information such as a cell Identification (ID). In addition, the UE may receive a Physical Broadcast Channel (PBCH) from the BS to acquire broadcast information in the cell. Further, the UE may receive a downlink reference signal (DL RS) in the initial cell search step to identify a downlink channel state.

Upon completion of the initial cell search, the UE may receive a Physical Downlink Control Channel (PDCCH) and a physical downlink control channel (PDSCH) corresponding thereto to acquire more specific system information (S12).

Thereafter, the UE may perform a random access procedure to complete access to the BS (S13 to S16). Specifically, the UE may transmit a preamble through a Physical Random Access Channel (PRACH) (S13), and may receive a Random Access Response (RAR) for the preamble through a PDCCH and a PDSCH corresponding thereto (S14). Thereafter, the UE may transmit a Physical Uplink Shared Channel (PUSCH) by using the scheduling information in the RAR (S15), and may perform a contention resolution procedure similar to the PDCCH and the PDSCH corresponding thereto (S16).

After performing the foregoing procedure, the UE may perform PDCCH/PDSCH reception (S17) and PUSCH/Physical Uplink Control Channel (PUCCH) transmission (S18) as typical uplink/downlink signal transmission procedures. The control information transmitted by the UE to the BS is referred to as Uplink Control Information (UCI). UCI includes hybrid automatic repeat and request (HARQ) Acknowledgement (ACK)/Negative ACK (NACK), scheduling Request (SR), channel State Information (CSI), and the like. CSI includes Channel Quality Indicators (CQIs), precoding Matrix Indicators (PMIs), rank Indications (RI), and the like. In general, UCI is transmitted through PUCCH. However, when control information and data are to be simultaneously transmitted, UCI may be transmitted through PUSCH. In addition, the UE may aperiodically transmit UCI through PUSCH according to a request/instruction of the network.

In the following, the coverage enhancement in question is described.

Because coverage directly affects quality of service and costs (e.g., CAPEX (capital expenditure) and OPEX (operational expenditure)), it is one of the key factors that carriers consider when commercializing cellular networks. Many countries are making more spectrum available in FR1, such as 3.5GHz, FR1 is typically a higher frequency than LTE or 3G.

In contrast to LTE, NR is designed to operate at much higher frequencies in FR2, such as 28GHz or 39 GHz. Higher frequencies inevitably subject the radio channel to higher path loss, making it more difficult to maintain the same quality of service as a legacy RAT (radio access technology).

An important mobile application is voice services where ubiquitous coverage is always expected wherever a typical subscriber is.

In evaluating baseline performance, the following channel may be a potential bottleneck for FR 1.

In the first order, PUSCH for eMBB (for FDD and TDD with DDDSU, DDDSUDDSUU and dddddsuu), PUSCH for VoIP (for FDD and TDD with DDDSU, DDDSUDDSUU).

In the second order, PRACH format B4, PUSCH for message 3, PUCCH format 1, PUCCH format 3 for 11 bits, PUCCH format 3 for 22 bits, broadcast PDCCH.

The next channel may be a potential bottleneck for a city 28GHz scenario. PUSCH for eMBB (DDDSU and DDSU), PUSCH for VoIP (DDDSU and DDSU), PUCCH format 3 of 11 bits, PUCCH format 3 of 22 bits, PUSCH of PRACH format B4 and message 3.

For PUSCH enhancement, the following may be discussed.

For enhancement of PUSCH repetition type a, 1) the maximum number of repetitions can be increased to the number determined during operation, or 2) the number of repetitions calculated based on the available uplink slots can be used.

To support TB (transport block) processing by the multi-slot PUSCH, a TBs (transport block size) may be determined based on and transmitted by the multi-slot.

To enable joint channel estimation, a mechanism to enable joint channel estimation for multiple PUSCH transmissions may be specified based on conditions for maintaining power consistency and phase continuity.

Inter-slot frequency hopping using inter-slot bundling that enables joint channel estimation may be considered.

To improve the PUCCH, the following mechanism may be considered. 1) Signaling mechanism for supporting dynamic PUCCH repetition factor indication, 2) DM-RS (demodulation reference signal: DMRS), 3) a mechanism for supporting PUSCH repetition type a for message 3.

Based on this discussion, in the case where a TB processing on multi-slot (TBoMS) PUSCH operation is performed on a plurality of slots for coverage enhancement of a UE, an operation when PUSCH transmission and PUCCH transmission overlap will be described.

PUSCH repetition types a and B are introduced in NR Rel-15/16, and transmission is performed as follows according to the PUSCH repetition type.

PUSCH repetition type A

Fig. 9 illustrates PUSCH repetition type a.

Referring to fig. 9, pusch repetition type a is slot-based repetition. As shown in fig. 9, repetition is performed with the same PUSCH transmission start symbol position and PUSCH transmission symbol length (meaning the number of symbols transmitting PUSCH) for each slot. At this time, if there are invalid symbols that cannot be used for PUSCH transmission among symbol resources constituting a specific PUSCH repetition, transmission of the corresponding PUSCH repetition is discarded and not performed. That is, when performing 4 total repeated PUSCH transmissions of Rep0, rep1, rep2, and Rep3, when an invalid symbol is included in symbol resources constituting Rep1, transmission of Rep1 is discarded, and only transmission of Rep0, rep2, and Rep3 is performed. Therefore, the number of repetitions actually performed may be smaller than the configured number of repetitions.

For PUSCH repetition type a, the UE may be configured with frequency hopping according to higher layer parameters. One of the following two frequency hopping patterns can be configured. 1) Can be applied to intra-slot frequency hopping for single-slot and multi-slot PUSCH transmission, and 2) can be applied to inter-slot frequency hopping for multi-slot PUSCH transmission.

Pusch repetition type B

Fig. 10 illustrates PUSCH repetition type B.

Referring to fig. 10, in PUSCH repetition type B, repetition is performed in units of symbol length in which an actual PUSCH is transmitted. When PUSCH is transmitted in 10 symbols as in (a) of fig. 10, PUSCH repetition is performed in units of 10 consecutive symbols. The nominal repetition (nominal repetition) is a repetition of determining PUSCH repetition transmission time resource without considering slot boundaries, invalid symbols, etc. However, in the case of actual PUSCH repetition, one PUSCH cannot be transmitted at a slot boundary.

When the PUSCH transmission includes a slot boundary, two actual repetitions are performed based on the slot boundary as shown in (b) of fig. 10. In addition, one PUSCH transmission may be performed through only consecutive symbols. If there is an invalid symbol in the time resource in which the PUSCH repetition is to be transmitted, the actual repetition is constructed using consecutive symbols bordered by the invalid symbol. For example, if symbols #0 to #9 constitute one nominal repetition and symbols #3 to #5 are invalid symbols, symbols #0 to #2 excluding the invalid symbols and symbols #6 to #9 each constitute one actual repetition.

When a symbol that cannot be used for PUSCH transmission (e.g., a symbol indicated as a downlink symbol by DCI format 2_0) is included in one actual repetition resource, the UE discards and does not perform actual repetition transmission.

When PUSCH repetition type a is applied in NR, PUSCH transmission slot resources and TB mapping procedure are as follows.

For PUSCH repetition type a, when PUSCH scheduled by DCI format 0_1 or 0_2 with CRC scrambled to C-RNTI (radio network temporary identifier), MCS-C-RNTI, or CS-RNTI with NDI (new data indicator) =1 in PDCCH is transmitted, the number of repetitions K may be determined as follows.

1) If 'numberofrepetitions' is in the resource allocation table, the number of repetitions K is equal to 'numberofrepetitions'.

2) Otherwise, if the UE is configured with 'pusch-aggregation factor', the repetition number K is the same as 'pusch-aggregation factor'.

3) Otherwise, k=1.

For PUSCH repetition type a, the same symbol allocation is applied over K consecutive slots if K > 1. And PUSCH is limited to a single transport layer.

The UE repeats the TB by applying K consecutive slots of the same symbol allocation in each slot. The Redundancy Version (RV) of the nth (n=0, 1..k-1) transmission opportunity to be applied to the TB may be determined according to table 4 below.

TABLE 4

In the case of PUSCH repetition type a, if a specific condition is satisfied, PUSCH transmission may be omitted in one slot of multi-slot PUSCH transmission.

A Transport Block (TB) of PUSCH is mapped and transmitted through symbol resources in one slot. When PUSCH repetition is performed K times by applying PUSCH repetition type a, TB is repeatedly transmitted K times using K consecutive slots. In this case, RV (redundancy version) values are determined as shown in table 4 according to the order of TB transmission opportunities.

The same symbol allocation may be applied to each slot in which TB transmission is performed. Information about symbol allocation for PUSCH transmission in each slot may be indicated by a time domain resource assignment field of DCI for scheduling PUSCH. The value of the SLIV applied by the UE to PUSCH transmission is indicated by a Time Domain Resource Assignment (TDRA) field, by which PUSCH transmission start symbol position (S) and transmission symbol length (L) in a slot may be indicated. For example, the UE may use the S-th symbol through the S+L-1-th symbol in the slot for PUSCH transmission.

Meanwhile, a technique of transmitting one Transport Block (TB) using symbol resources located in a plurality of slots for Coverage Enhancement (CE) of PUSCH may be introduced. In particular, the time resources constituting the PUSCH are composed of continuous/discontinuous symbols located on a plurality of slots, and one Transport Block (TB) may be mapped to the corresponding PUSCH resources and transmitted.

Alternatively, one PUSCH consists of symbol resources located in one slot, but it is possible to map one TB using a plurality of PUSCH resources located in different slots.

As a result, one TB is mapped and transmitted to contiguous/non-contiguous symbol resources located in a plurality of different slots. In this disclosure, this transmission technique is referred to as multi-slot TB mapping.

Meanwhile, when PUSCH transmission and PUCCH transmission are performed in the same slot, PUCCH transmission and PUSCH transmission may be performed as follows.

When OFDM symbol resources of PUCCH and PUSCH transmissions that are not repeated overlap in a specific slot, UCI is multiplexed with PUSCH data and transmitted through PUSCH. That is, UCI piggybacking (multiplexing of data and UCI) on PUSCH is performed.

When OFDM symbol resources having repeated PUCCH (PUCCH with repetition) and PUSCH transmissions overlap in a specific slot, PUCCH is transmitted without performing PUSCH transmission in the corresponding slot resources as follows.

When the UE passes the first number (N ^repeat _PUCCH ) And transmitting the PUSCH having the repetition type a through a second number of slots, and the PUCCH transmission overlaps with the PUSCH transmission in one or more slots, and when a condition for multiplexing UCI to PUSCH is satisfied in the overlapping slots, the UE transmits the PUCCH and does not transmit the PUSCH in the overlapping slots.

Hereinafter, in the case where PUSCH TB mapping is performed to a plurality of slots (multislot TB mapping) to improve coverage of a UE, a method of determining the number of UCI REs when UCI is multiplexed to PUSCH and transmitted is proposed.

Hereinafter, PUSCH repetition (TB repetition) will be described under the assumption that PUSCH repetition type a is applied. Further, it is assumed that PUSCH is transmitted by applying multi-slot TB mapping, in which one PUSCH TB is mapped to a plurality of slot resources and transmitted. For convenience, this PUSCH is referred to as TB processed (TBoMS) PUSCH over multiple slots.

The plurality of time slots to which TBs are mapped may be configured as time slots that are positioned continuously or discontinuously on a time axis. When a TB is mapped to a plurality of slots, it means that the TB is mapped to all or some symbol resources located in the corresponding slot. In this case, the slot resource to which one TB is mapped may be referred to as a transmission opportunity of the TB. One TB may perform continuous rate matching on resources within a plurality of slots constituting a transmission opportunity.

Repetition may also be applied for additional coverage enhancement when multi-slot TB mapping is applied to PUSCH transmissions. If the PUSCH TB is repeatedly performed K times, the TB is repeatedly transmitted K times through K transmission opportunities.

Fig. 11 illustrates a case where multi-slot TB mapping and repetition are applied to PUSCH transmission.

Referring to fig. 11, for example, a slot resource to which one TB is mapped may be composed of z=2 slots, and the TB may be repeatedly transmitted k=4 times. As shown in fig. 11, each transmission occasion of TB repetition is composed of z=2 slots, and k=4 times is repeatedly transmitted from the 0 th transmission occasion to the 3 rd transmission occasion.

In the related art, UCI is piggybacked on PUSCH and transmitted when transmission time resources of PUSCH and PUCCH without repetition overlap in a specific slot. However, when PUSCH TBs are mapped on a plurality of slots, PUCCH transmission in which overlapping will occur during a slot resource period in which PUSCH TBs are transmitted is predicted in advance, and rate matching for a Code Block (CB) transmitted through PUSCH should be performed. Such operations may be difficult to perform when considering UE processing time or UCI multiplexing procedures.

Fig. 12 illustrates a case in which a multi-slot TB mapping is applied and a repeated PUSCH overlaps with a PUCCH.

Referring to fig. 12, the TB of the pusch may be mapped by z=4 slots and repeated transmission k=2 times in total. In this case, when the UE has started transmission on PUSCH transmission occasion #0, PUCCH transmission may be scheduled in the last slot of transmission occasion # 0. In this case, the UE cannot perform PUCCH piggybacking to PUSCH.

When transmitting TBoMS PUSCH, PUSCH repetition may not be performed. In this case, when the number Z of slots to which the PUSCH TB is mapped is greater than 1, the number K of repetitions of the PUSCH TB may always be equal to 1.

There may be only one transmission occasion in a time interval in which one TB is mapped to a plurality of slots. Alternatively, there may be multiple transmission opportunities within a time interval in which one TB is mapped to multiple slots. When there may be a transmission occasion within a time interval in which one TB is mapped to a plurality of slots, the transmission time resource of the TBoMS PUSCH in the present disclosure may mean 1) the entire time interval in which one TB is mapped to a plurality of slots or 2) one transmission occasion. That is, TBoMS PUSCH transmission, and TBoMS PUSCH transmission resources in the present disclosure may be replaced with transmission occasions of TBoMS PUSCH, transmission of transmission occasions of TBoMS PUSCH, and transmission occasion transmission resources of TBoMS PUSCH, respectively.

When multi-slot TB mapping for PUSCH transmission is performed while repetition is applied, UE operation when PUSCH transmission and PUCCH transmission time resources overlap is proposed.

Only when PUCCH is transmitted without performing repetition, i.e. when the number of repetition N of PUCCH ^repeat _PUCCH When 1, the present disclosure can be applied.

Conventionally, when UCI is transmitted on PUSCH, the number of coded modulation symbols per layer of UCI, i.e., the number of REs through which UCI is transmitted, can be determined by the following equation.

First, when UCI is HARQ-ACK, the number of REs may be determined as follows.

[ equation 1]

Here, O _ACK Is the number of HARQ-ACK bits. If O _ACK 360 or more, L _ACK Is 11, otherwise L _ACK Is the number of CRC bits for HARQ-ACK. (O) _ACK +L _ACK ) The payload size, which may be referred to as UCI.

β ^PUSCH _offset Is beta ^HARQ-ACK _offset 。

C _UL-SCH Is the number of code blocks of the UL-SCH used for PUSCH transmission.

If the DCI format scheduling PUSCH transmission includes a CBGTI (code block group transmission information) field indicating that the UE will not transmit the r-th code block, K _r =0, otherwise, K _r The r-th code block size of the UL-SCH for PUSCH transmission.

M ^PUSCH _sc Is the scheduled bandwidth of PUSCH transmission expressed as the number of subcarriers.

M ^PT-RS _sc (l) Is the number of subcarriers in OFDM symbol/carrying PTRS (phase tracking reference signal) in PUSCH transmission.

M ^UCI _sc (l) Is the number of resource elements in PUSCH transmission that can be used for transmission of UCI in OFDM symbol i, where i=0, 1, 2 ^PUSCH _symb,all -1。N ^PUSCH _symb,all Is the total number of OFDM symbols of PUSCH, including all OFDM symbols for DMRS.

For any OFDM symbol carrying DMRS of PUSCH, M ^UCI _sc (l)＝0，

For any OFDM symbol of DMRS that does not carry PUSCH, M ^UCI _sc (l)＝M ^PUSCH _sc -M ^PT-RS _sc (l)。

Alpha is set by the higher layer parameter "scaling".

l ₀ Is the symbol index of the first OFDM symbol of the DMRS in PUSCH transmission that does not carry PUSCH after the first DMRS symbol.

If UCI is CSI part 1, the number of REs may be determined as follows.

[ equation 2]

O _CSI-1 Is the number of bits of CSI part 1. If O _CSI-1 360 or more, L _CSI-1 Is 11, otherwise L _CSI-1 Is the number of CRC bits for CSI part 1.

β ^PUSCH _offset Is beta ^CSI-part1 _offset 。

If HARQ-ACK exists on PUSCH and there is no CG-UCI, Q' _ACK/CG-UCI ＝Q' _ACK . If the number of HARQ-ACK information bits is greater than 2, Q' _ACK Is the number of coded modulation symbols per layer for HARQ-ACKs sent on PUSCH. If the number of HARQ-ACK information bits is 2 or less, Q' _ACK Is given as Is the number of reserved resource elements in OFDM symbol/in PUSCH transmission for potential HARQ-ACK transmission. l=0, 1,2,.. ^PUSCH _symb,all -1。

If both HARQ-ACK and CG-UCI exist on the same PUSCH, Q' _ACK/CG-UCI ＝Q' _ACK . Here, Q' _ACK Is the number of coded modulation symbols per layer for HARQ-ACK and CG-UCI transmitted on PUSCH.

If CG-UCI exists on PUSCH and there is no HARQ-ACK, Q' _ACK/CG-UCI ＝Q' _CG-UCI . Here, Q' _CG-UCI Is the number of coded modulation symbols per layer for CG-UCI transmitted on PUSCH.

M ^UCI _sc (l) Is the number of resource elements in the PUSCH transmission that can be used to transmit UCI in OFDM symbol i, where i=0, 1,2 ^PUSCH _symb,all -1。N ^PUSCH _symb,all Is the total number of OFDM symbols of PUSCH, including all OFDM symbols for DMRS.

For any OFDM symbol carrying DMRS of PUSCH, M ^UCI _sc (l)＝0，

For any OFDM symbol that does not carry DMRS of PUSCH, M ^UCI _sc (l)＝M ^PUSCH _sc -M ^PT-RS _sc (l)。

Alpha is configured by the higher layer parameter "scaling".

If UCI is CSI part 2, the number of REs may be determined as follows.

[ equation 3]

O _CSI-2 Is the number of bits of CSI part 2. If O _CSI-2 360 or more, L _CSI-2 Is 11, otherwise L _CSI-2 Is the number of CRC bits for CSI part 2.

β ^PUSCH _offset Is beta ^CSI-part2 _offset 。

M ^PT-RS _sc (l) Is the number of subcarriers in OFDM symbol/carrying PTRS in PUSCH transmission.

If HARQ-ACK exists on PUSCH and there is no CG-UCI, Q' _ACK/CG-UCI ＝Q' _ACK . Here, if the number of HARQ-ACK information bits is greater than 2, Q' _ACK Is the number of coded modulation symbols per layer for HARQ-ACKs transmitted on PUSCH. If the number of HARQ-ACK information bits is 1 or 2, Q' _ACK ＝0。

If both HARQ-ACK and CG-UCI exist on the same PUSCH, Q' _ACK/CG-UCI ＝Q' _ACK . Here, Q' _ACK Is the number of coded modulation symbols per layer for HARQ-ACK and CG-UCI to be transmitted on PUSCH.

Q' _CSI-1 Is the number of coded modulation symbols per layer for CSI-part 1 transmitted on PUSCH.

M ^UCI _sc (l) Is the number of resource elements in OFDM symbol/in PUSCH transmission that can be used for UCI transmission, l=0, 1,2 ^PUSCH _symb,all -1。N ^PUSCH _symb,all Is the total number of OFDM symbols of PUSCH, including all OFDM symbols for DMRS.

For any OFDM symbol carrying DMRS of PUSCH, M ^UCI _sc (l)＝0。

Alpha is configured by the higher layer parameter "scaling".

If the UCI is CG-UCI, the number of REs can be determined as follows.

[ equation 4]

O _CG-UCI Is the number of bits of CG-UCI.

L _CG-UCI Is the number of CRC bits for CG-UCI.

β ^PUSCH _offset Is beta ^CG-UCI _offset 。

K _r Is the r-th code block size of the UL-SCH for PUSCH transmission.

M ^PT-RS _sc (l) Is the number of subcarriers of OFDM symbol/carrying PTRS in PUSCH transmission.

For any OFDM symbol carrying DMRS of PUSCH, M ^UCI _sc (l)＝0。

Alpha is configured by the higher layer parameter "scaling".

The input bit sequence for rate matching is d _r0 ,d _r1 ,d _r2 ,d _r3 ,...,d _r(Nr-1) . Here, r is a code block number, and N _r Is the compiled number of bits of the code block number r.

I _BIL =1 and rate matching is performed. The length of the rate matching output sequence is E _r ＝floor(E _UCI /C _UCI ). Here, C _UCI Is the number of code blocks used for UCI. N (N) _L The number of transmission layers of PUSCH. Q (Q) _m Is the modulation order of PUSCH. E (E) _UCI ＝N _L ·Q' _CG-UCI ·Q _m 。

When UCI is HARQ-ACK and CG-UCI, the number of REs may be determined as follows.

[ equation 5]

O _ACK Is the number of bits of HARQ-ACK.

O _CG-UCI Is the number of bits of CG-UCI.

If O _ACK +O _CG-UCI Greater than 360, L _ACK Is 11, otherwise L _ACK Is the number of CRC bits for HARQ-ACK and CG-UCI.

β ^PUSCH _offset Is beta ^HARQ-ACK _offset 。

K _r Is the r-th code block size of the UL-SCH for PUSCH transmission.

M ^UCI _sc (l) Is the number of resource elements in OFDM symbol/in PUSCH transmission that can be used for UCI transmission, l=0, 1,2,.. ^PUSCH _symb,all -1。N ^PUSCH _symb,all Is the total number of OFDM symbols of PUSCH, including all OFDM symbols for DMRS.

For any OFDM symbol carrying DMRS of PUSCH, M ^UCI _sc (l)＝0。

Alpha is configured by the higher layer parameter "scaling".

It can be seen that equations for determining the number of UCI transmission REs according to UCI type (i.e., equations 1 to 5) are generally configured in the form of min { a, B }.

Here, the portion a (a term in min { a, B }), which is the left term in the above equation, can be said to be a portion for determining the number of transmission REs of UCI based on the code rate of PUSCH. That is, the number of transmission REs based on the PUSCH (e.g., in equation 1) Number of transmission bits of/PUSCH (e.g., +.in equation 1>) "and" UCI payload size "(e.g., O in equation 1) _ACK +L _ACK ) To obtain the number of transmission REs of UCI.

At this time, the number of transmission REs of UCI passes through β ^PUSCH _offset Is scaled by an offset value of (a). Specifically, an offset value for determining the number of resources for the UE to multiplex HARQ-ACK information and multiplex CSI reports on PUSCH is defined. An offset value for multiplexing CG-UCI in CG-PUSCH is also defined. The offset value may beSignaling to the UE is by a DCI format or higher layer signal for scheduling PUSCH transmission. Beta ^PUSCH _offset The values may be different depending on the UCI type, and β ^HARQ-ACK _offset 、β ^CSI-part1 _offset And beta ^CSI-part2 _offset The values of (2) are applied to the UCI types of HARQ-ACK, CSI part 1 and CSI part 2, respectively.

Part B (B term in min { a, B } is a right term in the above equation, is a part for setting the upper limit of the number of UCI transmission REs, and may be used to limit the number of UCI transmission REs so that it does not exceed αx "the number of transmission REs of PUSCH". This alpha value is set by the higher layer parameter "scaling".

Since the existing PUSCH is transmitted through symbol resources within one slot, N is calculated in equations 1 to 5 ^PUSCH _symb,all Meaning that the number of PUSCH transmission symbols does not exceed the number of symbols constituting a slot.

On the other hand, in the case of TBoMS PUSCH transmission, symbols constituting one TBoMS PUSCH transmission exist on a plurality of slot resources. In addition, when collision occurs between TBoMS PUSCH and PUCCH, UCI multiplexing may be considered to be performed within one slot resource in which overlap occurs. In this case, it is not only necessary to clarify N in the equation for obtaining UCI transmission RE ^PUSCH _symb,all But also equations 1 to 5 which are necessarily changed. This will be explained below.

Referring to fig. 13, the ue determines the number of coded modulation symbols of UCI (S131). Specifically, the number of coded modulation symbols for the case of UCI transmission through TBoMS PUSCH is determined.

The number of coded modulation symbols for UCI is determined based on: i) By indexing from symbol index 0 to N in one slot with UCI transmission among a plurality of slots ^PUSCH _symb,all Sum of number of resource elements in OFDM symbol of-1 that can be used for transmitting UCI and time slot configured for TBoMS PUSCH A value obtained by (Z), and ii) a total number of bits transmitted through TBoMS PUSCH. And N is ^PUSCH _symb,all Is determined to mean the total number of OFDM symbols of PUSCH in one slot.

The UE transmits UCI on a TBoMS PUSCH transmitted through a plurality of slots (S132). UCI may include HARQ-ACK (hybrid automatic repeat and request-acknowledgement).

The number of slots (Z) may be indicated by Downlink Control Information (DCI). For example, Z may be a "numberOfSlotsTBoMS" value in a particular row of a resource allocation table indicated by a Time Domain Resource Assignment (TDRA) field of the DCI.

UCI may be transmitted through a TBoMS PUSCH based on a collision between transmission of a Physical Uplink Control Channel (PUCCH) and transmission of the TBoMS PUSCH in one slot.

Method 1. In the equations for obtaining the number of UCI transmission REs (i.e., equations 1 to 5), as described in fig. 13, N ^PUSCH _symb,all May mean the number of TBoMS PUSCH transmission symbols in one slot.

In this case, becauseMeaning the total number of bits constituting a TBoMS PUSCH transmission, the +.>The actual code rate of TBoMS PUSCH is incorrectly reflected (because the numerator is based on the number of resource elements of one slot, but the denominator is the number of bits transmitted in all the multiple slots constituting TBoMS PUSCH).

To solve this problem, the a term may be multiplied by the Z value. More specifically, in the numerator of the A term of equations 1 to 5,can become->In this case, Z may mean generalOver which the tbomins PUSCH is transmitted. In particular, Z may mean the number of slots constituting a TBoMS PUSCH transmission occasion, and may mean the number of slots constituting a TBoMS PUSCH transmission indicated from the network through RRC/DCI.

In the equivalent sense of multiplying the numerator of the A term by Z, 1/Z can be multiplied by the denominator of the A term. That is, rather than multiplying the numerator of item A by Z, item A may be multiplied by 1/Z. In this case, when UCI is transmitted on PUSCH, the number of coded modulation symbols per layer of UCI, i.e., the number of REs through which UCI is transmitted, may be determined as the following equation.

[ equation 6]

Equation 7 shows the case when UCI is CSI part 1.

[ equation 7]

Equation 8 shows the case where UCI is CSI part 2.

[ equation 8]

Equation 9 shows the case where UCI is CG-UCI.

[ equation 9]

Equation 10 shows the case where UCI is HARQ-ACK and CG-UCI.

[ equation 10]

Each parameter of equations 6 to 10 has been described in equations 1 to 5.

In equations 6 to 10, in order to obtain the number of UCI transmission resource elements, the number of transmission symbols of PUSCH (N ^PUSCH _symb,all ) Meaning the number of transmission symbols of the TBoMS within one slot in which UCI is transmitted. In addition, K means the number of bits constituting a code block transmitted by TBoMS _r Divided by the number of TBoMS transmission slots (Z) and applied. According to equations 6 to 10, the number of REs (the number of modulation symbols) required for UCI transmission in TBoMS PUSCH transmitted on a plurality of slots can be correctly calculated. Thus, the UE can determine the number of UCI transmission REs according to the performance targeted by the base station.

Meanwhile, for the case of UCI transmission through TBoMS PUSCH, β ^PUSCH _offset The value may have a larger value than before. In the related art, when a beta_offset value is set to a UE through a higher layer signal, beta corresponding to the beta_offset value is defined in a table ^HARQ-ACK _offset 、β ^CSI-part1 _offset And beta ^CSI-part2 _offset Is a value of (2). Reserved fields of the corresponding mapping table may be used to map beta greater than the previously available value ^HARQ-ACK _offset 、β ^CSI-part1 _offset And beta ^CSI-part2 _offset Values.

Alternatively, when UCI is transmitted on TBoMS PUSCH, β can be used with when UCI is transmitted on existing PUSCH ^PUSCH _offset Value-separated definition/configuration beta ^PUSCH _offset . In the related art, when a beta_offset value is set for a UE through a higher layer signal, beta corresponding to the corresponding beta_offset value ^HARQ-ACK _offset 、β ^CSI-part1 _offset And beta ^CSI-part2 _offset The values of (2) are defined in a table. When UCI is transmitted through TBoMS PUSCH, an independent mapping table can be defined and applied. In this case, the independent mapping table may be designed to have a larger beta than the existing mapping table ^HARQ-ACK _offset 、β ^CSI-part1 _offset And beta ^CSI-part2 _offset Is a value of (2).

In view of performing tbomins PUSCH for coverage enhancement purposes, UCI transmission may also need to be transmitted at a lower code rate using more RE resources when UCI is transmitted through tbomins PUSCH. For this purpose, in order to prevent the number of UCI transmission REs from passing through the B termBeing limited too small, when UCI is transmitted on TBoMS PUSCH, an independent alpha value may be defined/configured. That is, the α value applied when UCI is multiplexed and transmitted on TBoMS PUSCH may be defined/set independently of the existing α value.

Method 2. In the equation for obtaining the number of UCI transmission REs, N ^PUSCH _symb,all It may mean the number of symbols in all slots through which TBoMS PUSCH is transmitted.

In this case the number of the elements to be formed is,the actual code rate of PUSCH may be reflected.

On the other hand, in the other hand,the number of REs constituting one slot may be exceeded. To prevent this, one can add ++in term B in the above equation>Modified to->In this case, Z may mean the number of slots through which TBoMS PUSCH is transmitted. />

Alternatively, in term B of the above equation,can become as followsThis is to prevent->More than one PUSCH RE in a slot. In this case, Z may mean the number of slots through which TBoMS PUSCH is transmitted.

Method 3. In the equation for obtaining the number of UCI transmission REs, N ^PUSCH _symb,all May be defined differently for items a and B.

For example, N in the A term of the above equation ^PUSCH _symb,all It may mean the number of symbols in all slots through which TBoMS PUSCH is transmitted.

On the other hand, N in the B term of the above equation ^PUSCH _symb,all May mean the number of TBoMS PUSCH transmission symbols in one slot.

In the case of TBoMS PUSCH transmission, the TBoMS PUSCH transmission may be performed using the same number of symbols for each slot in which TBoMS PUSCH transmission is performed, or the number of symbols for TBoMS PUSCH transmission may be different for each slot in which TBoMS PUSCH transmission is performed. With this in mind, N ^PUSCH _symb,all The definition may be as follows.

When N is ^PUSCH _symb,all Meaning the number of PUSCH transmission symbols in one slot, more specifically N ^PUSCH _symb,all The definition may be as follows.

1) It may mean the number of symbols (including DMRS symbols) in which actual TBoMS PUSCH transmission is performed in a slot in which UCI multiplexing is performed.

2) It may mean the number (=l) of PUSCH transmission symbols indicated by the TDRA field of the DCI.

When N is ^PUSCH _symb,all Meaning the number of symbols in all slots through which TBoMS PUSCH is transmitted, more specifically N ^PUSCH _symb,all The definition may be as follows.

1) It may mean the number of symbols (including DMRS symbols) that perform the actual TBoMS PUSCH transmission in the slot in which the TBoMS PUSCH is transmitted.

2) When the number of PUSCH transmission symbols indicated through the TDRA field of DCI is L and the number of slots through which TBoMS PUSCH is transmitted is Z, it may mean "Zx L".

At this time, the number Z of slots through which TBoMS PUSCH is transmitted may be replaced as follows.

i) It may mean the number of transmission slots of TBoMS PUSCH. In this case, it may mean the number of slots constituting TBoMS PUSCH transmission indicated through RRC/DCI from the network, not the number of actual transmission slots of TBoMS PUSCH.

ii) it may mean the number of time slots constituting a tbomins PUSCH transmission occasion. In this case, it may mean the number of slots constituting a transmission occasion indicated from the network through RRC/DCI, instead of the number of slots constituting an actual transmission occasion.

iii) To calculate the size of the TB transmitted over TBoMS PUSCH, N is determined _info ＝S*N _RE *R*Q _m * v, where S may mean a scaling factor. In this case, Z may mean the corresponding scaling factor S.

Referring to fig. 14, the base station provides DCI indicating the number of slots (Z) of a TBoMS PUSCH to the UE (S141).

For example, the Z-value may be notified by a "numberOfSlotsTBoMS" value in a particular row of a resource allocation table indicated by a Time Domain Resource Assignment (TDRA) field of the DCI.

The UE determines whether UCI is piggybacked on TBoMS PUSCH (S142). For example, if collision with PUCCH transmission occurs in some slots constituting TBoMS PUSCH transmission, UCI may be determined to be piggybacked and transmitted on TBoMS PUSCH in the corresponding slots.

The UE determines the number of coded modulation symbols of UCI (S143). The UE may determine the number of coded modulation symbols of UCI through any one of the above equations 6 to 10.

The UE transmits UCI on TBoMS PUSCH (S144).

If PUSCH is transmitted in a single slot, i.e., a case in which collision occurs between the existing PUSCH and PUCCH, the number of coded modulation symbols of UCI may be determined according to any one of equations 1 to 5.

Fig. 15 illustrates a wireless device suitable for use in the present description.

Referring to fig. 15, the first wireless device 100 and the second wireless device 200 may transmit/receive wireless signals through various wireless access technologies (e.g., LTE, NR).

The first wireless device 100 may include one or more processors 102 and one or more memories 104, and additionally further include one or more transceivers 106 and/or one or more antennas 108. The processor 102 may control the memory 104 and/or the transceiver 106 and may be configured to implement the descriptions, functions, procedures, proposals, methods and/or operational flowcharts disclosed in this document. For example, the processor 102 may process the information within the memory 104 to generate first information/signals and then transmit radio signals including the first information/signals through the transceiver 106. Further, the processor 102 may receive a radio signal including the second information/signal through the transceiver 106, and then store information obtained by processing the second information/signal in the memory 104. The memory 104 may be connected to the processor 102 and may store various information related to the operation of the processor 102. For example, the memory 104 may store software code including commands for performing part or all of the processes controlled by the processor 102 or for performing the descriptions, functions, procedures, suggestions, methods, and/or operational flowcharts disclosed in this document. Here, the processor 102 and the memory 104 may be part of a communication modem/circuit/chip designed to implement a RAT (e.g., LTE or NR). The transceiver 106 may be coupled to the processor 102 and transmit and/or receive radio signals via one or more antennas 108. The transceiver 106 may include a transmitter and/or a receiver. The transceiver 106 may be used interchangeably with a Radio Frequency (RF) unit. In this specification, a wireless device may represent a communication modem/circuit/chip.

The second wireless device 200 may include one or more processors 202 and one or more memories 204, and additionally further include one or more transceivers 206 and/or one or more antennas 208. The processor 202 may control the memory 204 and/or the transceiver 206 may be configured to implement the descriptions, functions, procedures, proposals, methods and/or operational flowcharts disclosed in this document. For example, the processor 202 may process the information within the memory 204 to generate a third information/signal and then transmit a radio signal including the third information/signal through the transceiver 206. Further, the processor 202 may receive a radio signal including the fourth information/signal through the transceiver 106 and then store information obtained by processing the fourth information/signal in the memory 204. The memory 204 may be connected to the processor 202 and may store various information related to the operation of the processor 202. For example, memory 204 may store software code including commands for performing part or all of the processes controlled by processor 202 or for performing descriptions, functions, procedures, proposals, methods and/or operational flowcharts disclosed in this document. Here, the processor 202 and the memory 204 may be part of a communication modem/circuit/chip designed to implement a RAT (e.g., LTE or NR). The transceiver 206 may be connected to the processor 202 and transmit and/or receive radio signals through one or more antennas 208. The transceiver 206 may include a transmitter and/or a receiver. The transceiver 206 may be used interchangeably with RF unit. In this specification, a wireless device may represent a communication modem/circuit/chip.

Hereinafter, hardware elements of the wireless devices 100 and 200 will be described in more detail. One or more protocol layers may be implemented by, but are not limited to, one or more processors 102 and 202. For example, one or more of processors 102 and 202 may implement one or more layers (e.g., functional layers such as PHY, MAC, RLC, PDCP, RRC and SDAP). The one or more processors 102 and 202 may generate one or more Protocol Data Units (PDUs) and/or one or more Service Data Units (SDUs) according to the descriptions, functions, procedures, proposals, methods and/or operational flowcharts disclosed in this document. One or more processors 102 and 202 may generate messages, control information, data, or information in accordance with the descriptions, functions, procedures, suggestions, methods, and/or operational flowcharts disclosed in this document. The one or more processors 102 and 202 may generate signals (e.g., baseband signals) including PDUs, SDUs, messages, control information, data, or information according to the descriptions, functions, procedures, proposals, methods, and/or operational flowcharts disclosed in this document, and provide the generated signals to the one or more transceivers 106 and 206. The one or more processors 102 and 202 may receive signals (e.g., baseband signals) from the one or more transceivers 106 and 206 and obtain PDUs, SDUs, messages, control information, data, or information according to the descriptions, functions, procedures, suggestions, methods, and/or operational flowcharts disclosed in this document.

The at least one processor 102 and 202 may be referred to as a controller, microcontroller, microprocessor, or microcomputer. The at least one processor 102 and 202 may be implemented in hardware, firmware, software, or a combination thereof. For example, at least one Application Specific Integrated Circuit (ASIC), at least one Digital Signal Processor (DSP), at least one Digital Signal Processing Device (DSPD), at least one Programmable Logic Device (PLD), or at least one Field Programmable Gate Array (FPGA) may be included in at least one of the processors 102 and 202. One or more of processors 102 and 202 may be implemented as at least one computer-readable medium (CRM) comprising instructions based on execution by at least one processor.

For example, each of the methods described in fig. 13-14 may be performed by at least one computer-readable medium (CRM) comprising instructions based on execution by at least one processor. The CRM may perform, for example, determining a number of coded modulation symbols for UCI and transmitting the UCI on TBoMS PUSCH transmitted over multiple slots. At this time, the number of coded modulation symbols of UCI is determined based on: i) By indexing from symbol index 0 to N in one slot with UCI transmission among a plurality of slots ^PUSCH _symb,all -1 the sum of the number of resource elements in the OFDM symbol that can be used for transmission of UCI multiplied by the number of slots configured for TBoMS PUSCH (Z) and ii) the total number of bits transmitted over TBoMS PUSCH. N (N) ^PUSCH _symb,all Is the total number of OFDM symbols of PUSCH in one slot.

The descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed herein may be implemented using firmware or software, and the firmware or software may be configured to include modules, procedures, functions, and so on. Firmware or software configured to perform the descriptions, functions, procedures, suggestions, methods and/or operational flow diagrams disclosed herein may be included in the at least one processor 102 and 202 or may be stored in the at least one memory 104 and 204 and may be executed by the at least one processor 102 and 202. The descriptions, functions, procedures, proposals, methods and/or operational flowcharts disclosed herein may be implemented in the form of codes, instructions and/or instruction sets using firmware or software.

The at least one memory 104 and 204 may be coupled to the at least one processor 102 and 202 and may store various forms of data, signals, messages, information, programs, code, instructions, and/or commands. The at least one memory 104 and 204 may be configured as ROM, RAM, EPROM, flash memory, hard drive, registers, cache memory, a computer-readable storage medium, and/or combinations thereof. The at least one memory 104 and 204 may be disposed internal and/or external to the at least one processor 102 and 202. In addition, the at least one memory 104 and 204 may be connected to the at least one processor 102 and 202 by various techniques, such as a wired or wireless connection.

At least one transceiver 106 and 206 may transmit user data, control information, radio signals/channels, etc. referred to in the methods and/or operational flow diagrams disclosed herein to at least a different device. The at least one transceiver 106 and 206 may receive user data, control information, radio signals/channels, etc. mentioned in the description, functions, procedures, proposals, methods and/or operational flow diagrams disclosed herein from at least one different device. For example, at least one transceiver 106 and 206 may be connected to at least one processor 102 and 202 and may transmit and receive radio signals. For example, the at least one processor 102 and 202 may control the at least one transceiver 106 and 206 to transmit user data, control information, or radio signals to at least one different device. Further, the at least one processor 102 and 202 may control the at least one transceiver 106 and 206 to receive user data, control information, or radio signals from at least one different device. The at least one transceiver 106 and 206 may be connected to the at least one antenna 108 and 208 and may be configured to transmit or receive user data, control information, radio signals/channels, etc. mentioned in the descriptions, functions, procedures, proposals, methods and/or operational flowcharts disclosed herein through the at least one antenna 108 and 208. In this document, at least one antenna may be a plurality of physical antennas or may be a plurality of logical antennas (e.g., antenna ports). The at least one transceiver 106 and 206 may convert the received radio signals/channels from RF band signals to baseband signals for processing the received user data, control information, radio signals/channels, etc., using the at least one processor 102 and 202. The at least one transceiver 106 and 206 may convert user data, control information, radio signals/channels, etc., processed using the at least one processor 102 and 202 from baseband signals to RF bad signals. To this end, the at least one transceiver 106 and 206 may comprise an (analog) oscillator and/or a filter.

Fig. 16 illustrates another example of a wireless device.

Referring to fig. 16, the wireless device may include at least one processor 102, 202, at least one memory 104, 204, at least one transceiver 106, 206, and one or more antennas 108, 208.

The example of the wireless device depicted in fig. 16 differs from the example of the wireless device depicted in fig. 15 in that the processors 102 and 202 and the memories 104 and 204 are separate in fig. 15, whereas the memories 104 and 204 are included in the processors 102 and 202 in the example of fig. 16. That is, the processor and the memory may constitute a chipset.

Fig. 17 shows an example of the structure of the signal processing module. Herein, signal processing may be performed in the processors 102 and 202 of fig. 15.

Referring to fig. 17, a transmitting device (e.g., a processor and a memory, or a processor and a transceiver) in a ue or BS may include a scrambler 301, a modulator 302, a layer mapper 303, an antenna port mapper 304, a resource block mapper 305, and a signal generator 306.

The transmitting device may transmit one or more codewords. The coded bits in each codeword are scrambled by a corresponding scrambler 301 and transmitted over a physical channel. The codeword may be referred to as a data string and may be identical to a transport block that is a data block provided by the MAC layer.

The scrambled bits are modulated into complex-valued modulation symbols by a corresponding modulator 302. Modulator 302 may modulate the scrambling bits according to a modulation scheme to arrange complex-valued modulation symbols representing positions on a signal constellation. The modulation scheme is not limited and M-PSK (M-phase shift keying) or M-QAM (M-quadrature amplitude modulation) may be used to modulate the encoded data. The modulator may be referred to as a modulation mapper.

Complex-valued modulation symbols may be mapped to one or more transport layers by layer mapper 303. Complex-valued modulation symbols on each layer may be mapped by antenna port mapper 304 for transmission on antenna ports.

Each resource block mapper 305 may map the complex-valued modulation symbols for each antenna port to the appropriate resource elements in the virtual resource block allocated for transmission. The resource block mapper may map virtual resource blocks to physical resource blocks according to an appropriate mapping scheme. The resource block mapper 305 may assign complex-valued modulation symbols for each antenna port to the appropriate subcarriers and multiplex the complex-valued modulation symbols according to users.

The signal generator 306 may modulate complex-valued modulation symbols (i.e., antenna-specific symbols) for each antenna port according to a specific modulation scheme (e.g., OFDM (orthogonal frequency division multiplexing)) to generate a complex-valued time-domain OFDM symbol signal. The signal generator may perform IFFT (inverse fast fourier transform) on the antenna-specific symbol, and may insert CP (cyclic prefix) into the time domain symbol on which IFFT has been performed. The OFDM symbols undergo digital-to-analog conversion and up-conversion and are then transmitted to a receiving device through each transmit antenna. The signal generator may include an IFFT module, a CP insertion unit, a digital-to-analog converter (DAC), and an up-converter.

Fig. 18 shows another example of the structure of a signal processing module in a transmitting apparatus. Herein, the signal processing may be performed in a processor of the UE/BS, such as processors 102 and 202 of fig. 15.

Referring to fig. 18, a transmitting device (e.g., a processor and a memory, or a processor and a transceiver) in a ue or BS may include a scrambler 401, a modulator 402, a layer mapper 403, a precoder 404, a resource block mapper 405, and a signal generator 406.

The transmitting device may scramble the coded bits in the codeword by a corresponding scrambler 401 and then transmit the scrambled coded bits through a physical channel.

The scrambled bits are modulated into complex-valued modulation symbols by a corresponding modulator 402. The modulator may modulate the scrambling bits according to a predetermined modulation scheme to arrange complex-valued modulation symbols representing positions on a signal constellation. The modulation scheme is not limited and pi/2-BPSK (pi/2-binary phase shift keying), m-PSK (m-phase shift keying), or m-QAM (m-quadrature amplitude modulation) may be used to modulate the encoded data.

Complex-valued modulation symbols may be mapped to one or more transport layers by layer mapper 403.

The complex-valued modulation symbols on each layer may be precoded by precoder 404 for transmission on the antenna ports. Here, the precoder may perform transform precoding on the complex-valued modulation symbols and then perform precoding. Alternatively, the precoder may perform precoding without performing transform precoding. The precoder 404 may process complex-valued modulation symbols according to MIMO using a plurality of transmission antennas to output antenna-specific symbols and assign the antenna-specific symbols to corresponding resource block mappers 405. The output z of the precoder 404 may be obtained by multiplying the output y of the layer mapper 403 by an nxm precoding matrix W. Here, N is the number of antenna ports and M is the number of layers.

Each resource block mapper 405 maps the complex-valued modulation symbols for each antenna port to the appropriate resource elements in the virtual resource block allocated for transmission.

The resource block mapper 405 may assign complex-valued modulation symbols to the appropriate subcarriers and multiplex the complex-valued modulation symbols according to users.

The signal generator 406 may modulate the complex-valued modulation symbols according to a particular modulation scheme (e.g., OFDM) to generate a complex-valued time-domain OFDM symbol signal. The signal generator 406 may perform IFFT (inverse fast fourier transform) on the antenna-specific symbol, and may insert CP (cyclic prefix) into the time-domain symbol on which IFFT has been performed. The OFDM symbols undergo digital-to-analog conversion and up-conversion and are then transmitted to a receiving device via each transmit antenna. The signal generator 406 may include an IFFT module, a CP insertion unit, a digital-to-analog converter (DAC), and an up-converter.

The signal processing of the receiving device may be reversed from that of the transmitting device. Specifically, a processor of the transmitting device decodes and demodulates the RF signal received through the antenna port of the transceiver. The reception apparatus may include a plurality of reception antennas, and the signal received through the reception antennas is restored to a baseband signal, and then multiplexed and demodulated according to MIMO to restore to a data string intended to be transmitted by the transmission apparatus. The receiving apparatus may include a signal recovery unit to recover the received signal to a baseband signal, a multiplexer to combine and multiplex the received signal, and a channel demodulator to demodulate the multiplexed signal string into a corresponding codeword. The signal recovery unit, multiplexer and channel demodulator may be configured as an integrated module or as separate modules for performing their functions. More specifically, the signal recovery unit may include an analog-to-digital converter (ADC) for converting an analog signal into a digital signal, a CP removal unit for removing a CP from the digital signal, an FET module for applying an FFT (fast fourier transform) to the CP-removed signal to output a frequency-domain symbol, and a resource element demapper/equalizer for recovering the frequency-domain symbol into an antenna-specific symbol. The antenna-specific symbols are restored by the multiplexer to the transport layer, and the transport layer is restored by the channel demodulator to the codeword intended to be transmitted by the transmitting device.

Fig. 19 illustrates an example of a wireless communication device according to an example of an embodiment of the present disclosure.

Referring to fig. 19, a wireless communication device, e.g., UE, may include at least one of: a processor 2310, such as a Digital Signal Processor (DSP) or microprocessor, the transceiver 2335, the power management module 2305, the antenna 2340, the battery 2355, the display 2315, a keypad 2320, a Global Positioning System (GPS) chip 2360, a sensor 2365, a memory 2330, a Subscriber Identity Module (SIM) card 2325, a speaker 2345, and a microphone 2350. Multiple antennas and multiple processors may be provided.

The processor 2310 is capable of implementing the functions, processes, and methods described in this specification. The processor 2310 of fig. 19 may be the processors 102 and 202 of fig. 15.

Memory 2330 is connected to processor 2310 and stores information related to the operation of the processor. The memory may be located inside or outside the processor and connected to the processor by various techniques, such as wired and wireless connections. Memory 2330 in fig. 19 may be memories 104 and 204 in fig. 15.

The user may input various types of information such as a phone number using various techniques such as pressing a button of the keypad 2320 or activating a sound using the microphone 2350. Processor 2310 may receive and process user information and perform appropriate functions, such as making calls using an input telephone number. In some scenarios, data may be retrieved from SIM card 2325 or memory 2330 to perform the appropriate functions. In some scenarios, the processor 2310 may display various types of information and data on the display 2315 for user convenience.

The transceiver 2335 is coupled to the processor 2310 and transmits and/or receives RF signals. The processor can control the transceiver to begin communication or to transmit RF signals that include various types of information or data such as voice communication data. The transceiver includes a transmitter and a receiver for transmitting and receiving RF signals. Antenna 2340 is capable of facilitating transmission and reception of RF signals. In some embodiment examples, when the transceiver receives an RF signal, the transceiver can forward the signal and convert the signal to baseband frequency for processing by the processor. The signals can be processed by various techniques such as conversion to audible or readable information to be output through speaker 2345. The transceivers in fig. 19 may be transceivers 106 and 206 in fig. 15.

Although not shown in fig. 19, various components such as a camera and a Universal Serial Bus (USB) port may be additionally included in the UE. For example, a camera may be connected to the processor 2310.

Fig. 19 is an example of an embodiment regarding a UE and an embodiment example of the present disclosure is not limited thereto. The UE need not include substantially all of the components shown in fig. 19. That is, some components (e.g., keypad 2320, GPS chip 2360, sensor 2365, and SIM card 2325) may not be necessary components. In this case, they may not be included in the UE.

Fig. 20 shows another example of a wireless device applied to the present specification. The wireless device may be implemented in various forms according to use cases/services.

Referring to fig. 20, wireless devices 100 and 200 may correspond to the wireless device of fig. 15 and may be configured by various elements, components, units/portions and/or modules. For example, each of the wireless devices 100 and 200 may include a communication unit 110, a control unit 120, a memory unit 130, and an additional component 140. The communication unit may include a communication circuit 112 and a transceiver 114. For example, the communication circuitry 112 may include one or more processors 102 and 202 and/or one or more memories 104 and 204. For example, transceiver 114 may include one or more transceivers 106 and 206 and/or one or more antennas 108 and 208 of fig. 15. The control unit 120 is electrically connected to the communication unit 110, the memory 130, and the additional components 140 and controls the overall operation of the wireless device. For example, the control unit 120 may control the electromechanical operation of the wireless device based on the processes/codes/commands/information stored in the memory unit 130. In addition, the control unit 120 may transmit information stored in the memory unit 130 to the outside (e.g., other communication devices) via the communication unit 110 through the wireless/wired interface or store information received from the outside (e.g., other communication devices) via the communication unit 110 through the wireless/wired interface in the memory unit 130.

The additional components 140 may be configured differently depending on the type of wireless device. For example, the additional component 140 may include at least one of a power supply unit/battery, an input/output (I/O) unit, a driving unit, and a computing unit. The wireless device can be implemented in a form not limited to: robot (100 a of fig. 21), vehicle (100 b-1 and 100b-2 of fig. 21), XR device (100 c of fig. 21), handheld device (100 d of fig. 21), home appliance (100 e of fig. 21), ioT device (100 f of fig. 21), digital broadcast UE, hologram device, public safety device, MTC device, medical device, financial science and technology device (or financial device), security device, climate/environment device, AI server/device (400 of fig. 21), BS (200 of fig. 21), network node, etc. Wireless devices may be used in mobile or stationary locations according to use examples/services.

In fig. 20, various elements, components, units/portions and/or totalities of modules in the wireless devices 100 and 200 may be connected to each other through wired interfaces or at least a portion thereof may be connected wirelessly through the communication unit 110. For example, in each of the wireless devices 100 and 200, the control unit 120 and the communication unit 110 may be connected by wires, and the control unit 120 and the first units (e.g., 130 and 140) may be connected wirelessly by the communication unit 110. Additionally, each element, component, unit/portion and/or module within wireless devices 100 and 200 may further include one or more elements. For example, the control unit 120 may be configured by a set of one or more processors. For example, the control unit 120 may be configured by a set of a communication control processor, an application processor, an Electronic Control Unit (ECU), a graphics processing unit, and a memory control processor. As another example, the memory 130 may be configured from Random Access Memory (RAM), dynamic RAM (DRAM), read Only Memory (ROM)), flash memory, volatile memory, non-volatile memory, and/or combinations thereof.

Referring to fig. 21, a communication system 1 applied to the present specification includes a wireless device, a Base Station (BS), and a network. Herein, a wireless device refers to a device that performs communication using a Radio Access Technology (RAT) (e.g., 5G New RAT (NR) or Long Term Evolution (LTE)) and may be referred to as a communication/radio/5G device. Wireless devices may include, but are not limited to, robots 100a, vehicles 100b-1 and 100b-2, augmented reality (XR) devices 100c, handheld devices 100d, home appliances 100e, internet of things (IoT) devices 100f, and Artificial Intelligence (AI) devices/servers 400. For example, the vehicles may include vehicles having a wireless communication function, autonomous vehicles, and vehicles capable of performing communication between vehicles. Herein, a vehicle may include an Unmanned Aerial Vehicle (UAV) (e.g., an unmanned aerial vehicle). The XR device may comprise an Augmented Reality (AR)/Virtual Reality (VR)/Mixed Reality (MR) device and may be implemented in the form of: head Mounted Devices (HMDs), head Up Displays (HUDs) installed in vehicles, televisions, smart phones, computers, wearable devices, home appliances, digital signage, vehicles, robots, and the like. Handheld devices may include smartphones, smartpads, wearable devices (e.g., smartwatches or smart glasses), and computers (e.g., notebooks). Home appliances may include TVs, refrigerators, and washing machines. IoT devices may include sensors and smart meters. For example, the BS and network may be implemented as wireless devices and a particular wireless device 200a may operate as a BS/network node with respect to other wireless devices.

The wireless devices 100a to 100f may connect to the network 300 via the BS 200. AI technology may be applied to the wireless devices 100a to 100f and the wireless devices 100a to 100f may connect to the AI server 400 via the network 300. The network 300 may be configured using a 3G network, a 4G (e.g., LTE) network, or a 5G (e.g., NR) network. Although the wireless devices 100a to 100f may communicate with each other through the BS 200/network 300, the wireless devices 100a to 100f may perform direct communication (e.g., side link communication) with each other without passing through the BS/network. For example, the vehicles 100b-1 and 100b-2 may perform direct communications (e.g., vehicle-to-vehicle (V2V)/vehicle-to-everything (V2X) communications). Further, ioT devices (e.g., sensors) may perform direct communications with other IoT devices (e.g., sensors) or other wireless devices 100 a-100 f.

Wireless communication/connection 150a, 150b, or 150c may be established between wireless devices 100a through 100f/BS200 or BS200/BS 200. Here, the wireless communication/connection may be established through various RATs (e.g., 5G NR), such as uplink/downlink communication 150a, side link communication 150b (or D2D communication), or inter-BS communication (e.g., relay, integrated Access Backhaul (IAB)). The wireless device and BS/wireless device can send/receive radio signals to/from each other through wireless communication/connections 150a and 150 b. For example, the wireless communication/connections 150a and 150b may transmit/receive signals over various physical channels. To this end, at least a part of various configuration information configuration procedures, various signal processing procedures (e.g., channel coding/decoding, modulation/demodulation, and resource mapping/demapping) and resource allocation procedures for transmitting/receiving radio signals may be performed based on various proposals of the present disclosure.

Here, the wireless communication technology implemented in the wireless devices 100 and 200 of the present specification may include narrowband internet of things for low power communication and LTE, NR, and 6G. At this point, for example, NB-IoT technology may be an example of LPWAN (low power wide area network) technology, and it may be implemented with standards such as LTE Cat NB1 and/or LTE Cat NB2, and is not limited to the above names. Additionally or alternatively, wireless communication techniques implemented in wireless devices 100 and 200 of the present specification may perform communications based on LTE-M techniques. In this case, as an example, the LTE-M technology may be an example of the LPWAN technology, and may be referred to by various names such as enhanced machine type communication (eMTC). For example, LTE-M technology may be implemented with at least one of various standards such as: 1) LTE CAT 0, 2) LTE CAT M1, 3) LTE CAT M2, 4) LTE non-BL (non-bandwidth limited), 5) LTE-MTC, 6) LTE machine type communication, and/or 7) LTEM, and is not limited to the above names. Additionally or alternatively, in view of low power communication, the wireless communication technology implemented in the wireless devices 100 and 200 of the present specification may include at least one of ZigBee, bluetooth, and Low Power Wide Area Network (LPWAN), and is not limited to the above-mentioned names. For example, zigBee technology can create PANs (personal area networks) related to small/low power digital communication based on various standards such as IEEE 802.15.4, and can be referred to by various names.

Meanwhile, NR supports multiple parameter sets (or multiple subcarrier spacing (SCS) ranges) in order to support various 5G services. For example, when SCS is 15kHz, supporting wide area of traditional cellular band; when SCS is 30kHz/60kHz, dense city, low delay and wider carrier bandwidth are supported; when SCS is 60kHz or higher, bandwidths greater than 24.25GHz are supported to overcome phase noise.

The NR frequency band can be defined as a frequency range of two types (FR 1, FR 2). The value of the frequency range may change. For example, the frequency ranges of the two types (FR 1, FR 2) can be shown in table 5 below. For convenience of description, FR1 of the frequency range for the NR system may be referred to as "below 6GHz range", and FR2 may be referred to as "above 6GHz range", and may also be referred to as millimeter wave (mmW).

TABLE 5

Frequency range assignment	Corresponding frequency range	Subcarrier spacing (SCS)
			FR1	450MHz-6000MHz	15、30、60kHz
FR2	24250MHz-52600MHz	60、120、240kHz

As illustrated above, the values of the frequency ranges for the NR system may be changed. For example, FR1 may comprise a band from 410MHz to 7125MHz as shown in table 6. That is, FR1 may include a frequency band of 6GHz (or 5850, 5900, 5925MHz, etc.) or greater. For example, the frequency band of 6GHz (or 5850, 5900, 5925MHz, etc.) or greater included in FR1 may include an unlicensed band. The unauthorized belt may be used for various purposes, for example, for vehicle communications (e.g., autonomous driving).

TABLE 6

Frequency range assignment	Corresponding frequency range	Subcarrier spacing (SCS)
			FR1	410MHz-7125MHz	15、30、60kHz
FR2	24250MHz-52600MHz	60、120、240kHz

The claims disclosed in this specification can be combined in various ways. For example, the technical features in the method claims of the present specification may be combined to be implemented or performed in an apparatus, and the technical features in the apparatus claims of the present specification may be combined to be implemented or performed in a method. Furthermore, the technical features in the method claims and the apparatus claims of the present specification may be combined to be implemented or performed in the apparatus. Furthermore, the technical features in the method claims and the apparatus claims of the present specification may be combined to be implemented or performed in the method.

Claims

1. A method for a User Equipment (UE) to transmit Uplink Control Information (UCI) in a wireless communication system, the method comprising:

determining the number of coded modulation symbols of the UCI; and

the UCI is transmitted on a transport block processing (TBoMS) Physical Uplink Shared Channel (PUSCH) on a multi-slot transmitted through a plurality of slots,

wherein the number of coded modulation symbols of the UCI is determined based on: i) By indexing from symbol index 0 to N in one slot with UCI transmission among the plurality of slots ^PUSCH _symb,all -a value obtained by multiplying the sum of the number of resource elements in an Orthogonal Frequency Division Multiplexing (OFDM) symbol that can be used for transmission of the UCI by the number of slots (Z) configured for the TBoMS PUSCH; and ii) total number of bits transmitted over the TBoMS PUSCH, and

wherein the N is ^PUSCH _symb,all Is the total number of OFDM symbols of PUSCH in the one slot.

2. The method of claim 1, wherein the UCI includes hybrid automatic repeat and request acknowledgement (HARQ-ACK).

3. The method of claim 1, wherein the UCI includes Channel State Information (CSI).

4. The method of claim 1, wherein the UCI includes configuration grant uplink control information (CG-UCI).

5. The method of claim 1, wherein the number of time slots (Z) is indicated by Downlink Control Information (DCI).

6. The method of claim 1, wherein the UCI is transmitted through the TBoMS PUSCH based on a collision between a transmission of a Physical Uplink Control Channel (PUCCH) in the one slot and a transmission of the TBoMS PUSCH.

7. A User Equipment (UE), comprising:

a transceiver for transmitting and receiving radio signals; and

A processor, said processor being coupled to said transceiver for operation,

wherein the processor is adapted to:

determining a number of coded modulation symbols of Uplink Control Information (UCI); and

8. The UE of claim 7, wherein the UCI includes hybrid automatic repeat and request acknowledgement (HARQ-ACK).

9. The UE of claim 7, wherein the UCI includes Channel State Information (CSI).

10. The UE of claim 7, wherein the UCI includes configuration grant uplink control information (CG-UCI).

11. The UE of claim 7, wherein the number of slots (Z) is indicated by Downlink Control Information (DCI).

12. The UE of claim 7, wherein the UCI is transmitted through the TBoMS PUSCH based on a collision between a transmission of a Physical Uplink Control Channel (PUCCH) in the one slot and a transmission of the TBoMS PUSCH.

13. An apparatus operating in a wireless communication system, the apparatus comprising:

a processor; and

a memory coupled to the processor and storing instructions to be executed by the processor,

wherein the instructions comprise:

14. At least one computer-readable medium (CRM) comprising instructions based on execution by at least one processor, wherein the instructions comprise:

15. A method for a base station to receive Uplink Control Information (UCI) in a wireless communication system, the method comprising:

transmitting downlink control information indicating a number (Z) of slots of a transport block processing (TBoMS) Physical Uplink Shared Channel (PUSCH) on a multi-slot to a User Equipment (UE); and

The UCI is received via the TBoMS PUSCH transmitted from the UE through a plurality of slots,

16. A base station, comprising:

a transceiver for transmitting and receiving radio signals; and

a processor, said processor being coupled to said transceiver for operation,

wherein the processor is adapted to:

transmitting downlink control information indicating a number of slots (Z) of a transport block processing (TBoMS) Physical Uplink Shared Channel (PUSCH) on a multi-slot to a User Equipment (UE); and

uplink Control Information (UCI) is received from the UE via the TBoMS PUSCH transmitted through a plurality of slots,

wherein the number of coded modulation symbols of the UCI is determined based on i) by indexing from symbol index 0 to N in one slot having UCI transmission among the plurality of slots ^PUSCH _symb,all -a value obtained by multiplying the sum of the number of resource elements in an Orthogonal Frequency Division Multiplexing (OFDM) symbol that can be used for transmission of the UCI by the number of slots (Z) configured for the TBoMS PUSCH; and ii) total number of bits transmitted over the TBoMS PUSCH, and