WO2023135758A1

WO2023135758A1 - Terminal, wireless communication method, and base station

Info

Publication number: WO2023135758A1
Application number: PCT/JP2022/001175
Authority: WO
Inventors: 祐輝松村; 春陽越後; 聡永田; ウェイチースン; ジンワン; ランチン
Original assignee: 株式会社Ｎｔｔドコモ
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2023-07-20

Abstract

A terminal according to one aspect of the present disclosure is provided with: a reception unit that receives a first parameter for performing transmission to a first transmission/reception point (TRP) and a second parameter for performing transmission to a second TRP; and a control unit that controls K repetitions of one transport block transmission over N slots, and that applies N×K parameters to the respective N×K slots through which the K repetitions of transmission is performed. Said N×K parameters include the first parameter and the second parameter, where N represents an integer of 2 or more and K represents an integer of 2 or more. According to one aspect of the present disclosure, it is possible to suitably perform data transmission over a plurality of slots when multiple TRPs are set/instructed.

Description

Terminal, wireless communication method and base station

The present disclosure relates to terminals, wireless communication methods, and base stations in next-generation mobile communication systems.

In the Universal Mobile Telecommunications System (UMTS) network, Long Term Evolution (LTE) has been specified for the purpose of further high data rate, low delay, etc. (Non-Patent Document 1). In addition, LTE-Advanced (3GPP Rel. 10-14) has been specified for the purpose of further increasing the capacity and sophistication of LTE (Third Generation Partnership Project (3GPP) Release (Rel.) 8, 9).

LTE successor systems (for example, 5th generation mobile communication system (5G), 5G+ (plus), 6th generation mobile communication system (6G), New Radio (NR), 3GPP Rel. 15 and later) are also being considered. .

In a future wireless communication system (for example, NR), one or more transmission/reception points (Transmission/Reception Points (TRP)) (Single TRP (STRP))/Multi TRP (Multi TRP (MTRP)) , DL transmission to terminals (user terminal, User Equipment (UE)) is under consideration. It is also being considered for a UE to perform UL transmissions using one or more panels for one or more TRPs.

Also, it is being considered that the UE transmits one piece of data (eg, transport block) over multiple slots.

However, when multi-TRP is set/instructed, the method of data transmission over multiple slots has not been studied. Unless such a method is clearly defined, communication throughput, communication quality, etc. may deteriorate.

Therefore, one object of the present disclosure is to provide a terminal, a wireless communication method, and a base station that can appropriately transmit data over multiple slots when multi-TRP is set/instructed.

A terminal according to an aspect of the present disclosure includes a receiver that receives a first parameter for transmission to a first transmission/reception point (TRP) and a second parameter for transmission to a second TRP; controlling the transmission of K repetitions of the transmission of one transport block over , applying N×K parameters respectively to the N×K slots in which the K repetitions are transmitted; K parameters include the first parameter and the second parameter, N is an integer of 2 or more, and K is an integer of 2 or more.

According to one aspect of the present disclosure, it is possible to appropriately transmit data over multiple slots when multi-TRP is set/instructed.

FIG. 1 shows an example of instructions for switching between single-TRP mode and multi-TRP mode using DCI. FIG. 2 shows Rel. An example of 17 multi-TRP PUSCH repetition is shown. 3A and 3B show an example of PUSCH repetition type A with TBoMS. FIG. 4 shows an example of option 1-1. 5A and 5B show an example of cyclic mapping for option 1-2. 6A and 6B show an example of sequential mapping for option 1-2. 7A and 7B show an example of option 1-2 half-half mapping. Figures 8A and 8B show an example of option 2-2-1. Figures 9A and 9B show an example of option 2-2-2. FIG. 10 shows another example of option 2-2-2. Figures 11A and 11B show an example of the difference between options 2-2-2 and 2-2-3. FIG. 12 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment; FIG. 13 is a diagram illustrating an example of the configuration of a base station according to one embodiment. FIG. 14 is a diagram illustrating an example of the configuration of a user terminal according to an embodiment; FIG. 15 is a diagram illustrating an example of hardware configurations of a base station and user terminals according to an embodiment. FIG. 16 is a diagram illustrating an example of a vehicle according to one embodiment;

(Spatial relationship for SRS, PUSCH)
Rel. In 15/16 NR, the UE uses information (SRS configuration information, e.g., "SRS-Config" of the RRC control element) used to transmit measurement reference signals (e.g., Sounding Reference Signal (SRS)) parameters) may be received.

Specifically, the UE receives information on one or more SRS resource sets (SRS resource set information, e.g., "SRS-ResourceSet" of the RRC control element) and information on one or more SRS resources (SRS resource information, eg, "SRS-Resource" of the RRC control element).

One SRS resource set may be associated with a predetermined number (eg, one or more or more) of SRS resources (a predetermined number of SRS resources may be grouped together). Each SRS resource may be identified by an SRS resource indicator (SRI) or an SRS resource ID (Identifier).

The SRS resource set information includes an SRS resource set ID (SRS-ResourceSetId), a list of SRS resource IDs (SRS-ResourceId) used in the resource set, SRS resource types (for example, periodic SRS (Periodic SRS), semi-persistent Either SRS (Semi-Persistent SRS) or aperiodic CSI (Aperiodic SRS)), and information on SRS usage may be included.

Here, the SRS resource types are periodic SRS (P-SRS), semi-persistent SRS (SP-SRS), and aperiodic CSI (Aperiodic SRS (A-SRS)). may indicate either Note that the UE may transmit P-SRS and SP-SRS periodically (or periodically after activation) and transmit A-SRS based on DCI's SRS request.

In addition, the usage ("usage" of RRC parameter, "SRS-SetUse" of L1 (Layer-1) parameter) is, for example, beam management (beamManagement), codebook (CB), noncodebook (noncodebook ( NCB)), antenna switching, and the like. SRS for codebook (CB) or non-codebook (NCB) applications may be used for precoder determination for codebook-based or non-codebook-based PUSCH transmission based on SRI.

For example, in the case of codebook-based transmission, the UE determines the precoder for PUSCH transmission based on the SRI, the Transmitted Rank Indicator (TRI) and the Transmitted Precoding Matrix Indicator (TPMI). may be determined. The UE may determine the precoder for PUSCH transmission based on the SRI for non-codebook-based transmission.

SRS resource information includes SRS resource ID (SRS-ResourceId), SRS port number, SRS port number, transmission Comb, SRS resource mapping (eg, time and/or frequency resource position, resource offset, resource period, repetition number, SRS number of symbols, SRS bandwidth, etc.), hopping related information, SRS resource type, sequence ID, spatial relationship information of SRS, and so on.

The spatial relationship information of the SRS (eg, "spatialRelationInfo" of the RRC information element) may indicate spatial relationship information between a given reference signal and the SRS. The predetermined reference signal includes a Synchronization Signal/Physical Broadcast Channel (SS/PBCH) block, a Channel State Information Reference Signal (CSI-RS) and an SRS (for example, another SRS). An SS/PBCH block may be referred to as a Synchronization Signal Block (SSB).

The SRS spatial relationship information may include at least one of the SSB index, CSI-RS resource ID, and SRS resource ID as the index of the predetermined reference signal.

It should be noted that in the present disclosure, the SSB index, SSB resource ID, and SSB Resource Indicator (SSBRI) may be read interchangeably. Also, the CSI-RS index, CSI-RS resource ID and CSI-RS resource indicator (CRI) may be read interchangeably. Also, the SRS index, SRS resource ID and SRI may be read interchangeably.

The spatial relationship information of the SRS may include the serving cell index, BWP index (BWP ID), etc. corresponding to the predetermined reference signal.

If the UE is configured with spatial relationship information about SSB or CSI-RS and SRS for a certain SRS resource, a spatial domain filter for reception of the SSB or CSI-RS (spatial domain receive filter) The SRS resource may be transmitted using the same spatial domain filter (spatial domain transmit filter) as the . In this case, the UE may assume that the UE receive beam for SSB or CSI-RS and the UE transmit beam for SRS are the same.

If the UE is configured with spatial relationship information about another SRS (reference SRS) and this SRS (target SRS) for a certain SRS (target SRS) resource, a spatial domain filter for the transmission of this reference SRS The target SRS resource may be transmitted using the same spatial domain filter (spatial domain transmit filter) as (spatial domain transmit filter). That is, in this case, the UE may assume that the UE transmission beam of the reference SRS and the UE transmission beam of the target SRS are the same.

The UE may determine the spatial relationship of PUSCHs scheduled by that DCI based on the value of a predetermined field (eg, SRS Resource Identifier (SRI) field) within the DCI (eg, DCI format 0_1). Specifically, the UE may use the spatial relationship information of the SRS resources (eg, “spatialRelationInfo” of the RRC information element) determined based on the value of the predetermined field (eg, SRI) for PUSCH transmission.

　Rel. In 16 NR, when codebook-based PUSCH transmission is used, the UE is configured with one SRS resource set for use = CB, configured with 2 SRS resources per SRS resource set by RRC, and 2 SRS resources may be indicated by a DCI (eg, a 1-bit SRI field). Except when full power mode 2 is set (for example, upper layer parameter ul-FullPowerTransmission-r16 is set to fullpowerMode2), SRS resources of the same SRS resource set have the same number of ports (number of SRS ports). may have.

　Rel. In 16 NR, when non-codebook-based PUSCH transmission is used, the UE is configured with one SRS resource set of usage = NCB, configured with 4 SRS resources per SRS resource set by RRC, and 4 SRS One or a combination of resources may be indicated by a DCI (eg, a 2-bit SRI field). Note that the SRS resources of the SRS resource set with usage=NCB may each have one port.

(PUSCH transmission power control)
In NR, the transmission power of PUSCH is controlled based on the TPC command (also called value, increment/decrement value, correction value, etc.) indicated by the value of a field in DCI (also called TPC command field, etc.).

For example, a UE may use a parameter set (open loop parameter set) with index j, index l in a power control adjustment state (PUSCH power control adjustment state) to activate an active UL on carrier f of serving cell c. When transmitting PUSCH on BWP b, PUSCH transmission power (P _{PUSCH, b, f, c} (i, j, q _d , l)) in PUSCH transmission occasion (transmission period, etc.) i [dBm] is P _CMAX,f,c(i) , _{PO_PUSCH,b,f,c} (j), M ^PUSCH _RB,b,f,c (i), α _b,f,c (j), It may be based on at least one of PL _b,f,c (q _d ), Δ _TF,b,f,c (i), f _b,f,c (i,l).

The power control adjustment state may also be called a closed loop (CL)-power control (PC) state, a value based on the TPC command of the power control adjustment state index l, an accumulated value of the TPC commands, or a closed loop value. l may be called the closed-loop index.

Also, the PUSCH transmission opportunity i is a period during which the PUSCH is transmitted, and may be composed of, for example, one or more symbols, one or more slots, or the like.

P _CMAX,f,c(i) is, for example, the user terminal transmission power (also referred to as maximum transmission power, UE maximum output power, etc.) configured for carrier f of serving cell c at transmission opportunity i.

P _{O_PUSCH,b,f,c} (j) is, for example, a parameter related to the target received power set for active UL BWP b of carrier f of serving cell c at transmission opportunity i (eg, a parameter related to transmit power offset, transmission (Also referred to as power offset P0, target received power parameter, etc.). _{PO_UE_PUSCH,b,f,c} (j) may be the sum of _{PO_NOMINAL_PUSCH,f,c} (j) and _{PO_UE_PUSCH,b,f,c} (j).

M ^PUSCH _RB,b,f,c (i) is, for example, the number of resource blocks (bandwidth) allocated to PUSCH for transmission opportunity i in active UL BWP b of serving cell c and carrier f with subcarrier spacing μ . α _b,f,c (j) are values provided by higher layer parameters (eg, msg3-Alpha, p0-PUSCH-Alpha, also called fractional factors, etc.).

PL _{b, f, c} (q _d ) is, for example, a reference signal (RS) for downlink BWP associated with active UL BWP b of carrier f of serving cell c, pathloss reference RS, pathloss (PL)-RS , pathloss reference RS, pathloss measurement DL-RS, PUSCH-PathlossReferenceRS) is the pathloss (pathloss estimation [dB], pathloss compensation) calculated by the user terminal using the index _qd .

If the UE is not provided with a pathloss reference RS (e.g., PUSCH-PathlossReferenceRS), or if the UE is not provided with dedicated higher layer parameters, the UE uses a synchronization signal (SS) to obtain the Master Information Block (MIB). PL _b,f,c (q _d ) may be calculated using the RS resources from the /physical broadcast channel (PBCH) block (SS block (SSB)).

If the UE is configured with a number of RS resource indices up to the value of the maximum number of pathloss reference RSs (e.g., maxNrofPUSCH-PathlossReferenceRSs) and a set of respective RS configurations for the RS resource indices by the pathloss reference RSs, The set of RS resource indices may include one or both of a set of SS/PBCH block indices and a set of channel state information (CSI)-reference signal (RS) resource indices. The UE may identify the RS resource index q _d within the set of RS resource indices.

If a PUSCH transmission is scheduled by a Random Access Response (RAR) UL grant, the UE may use the same RS resource index q _d for the corresponding PRACH transmission.

A UE is provided with a PUSCH power control configuration (e.g., SRI-PUSCH-PowerControl) by a sounding reference signal (SRS) resource indicator (SRI) and is provided with one or more values of pathloss reference RS IDs. If so, the mapping between the set of values for the SRI field in DCI format 0_1 and the set of ID values of pathloss reference RSs is defined in higher layer signaling (e.g., sri-PUSCH in SRI-PUSCH-PowerControl -PowerControl-Id). The UE may determine the RS resource index _qd from the ID of the pathloss reference RS mapped to the SRI field value in the DCI format 0_1 that schedules the PUSCH.

If the PUSCH transmission is scheduled with DCI format 0_0 and the UE is not provided with PUCCH spatial relationship information for the PUCCH resource with the lowest index for active UL BWP b for each carrier f and serving cell c, the UE will The same RS resource index q _d may be used for PUCCH transmissions in resources.

If the PUSCH transmission is scheduled with DCI format 0_0 and the UE is not provided with spatial settings for PUCCH transmission, or if the PUSCH transmission is scheduled with DCI format 0_1 that does not contain the SRI field, or power control of PUSCH by SRI is not provided to the UE, the UE may use the RS resource index q _d with a pathloss reference RS ID of zero.

For PUSCH transmission configured by a configured grant configuration (e.g. ConfiguredGrantConfig), if the configuration grant configuration includes a specific parameter (e.g. rrc-ConfiguredUplinkGrant), the RS resource index is determined by the pathloss reference index (e.g. pathlossReferenceIndex) in the specific parameter. q _d may be provided to the UE.

For PUSCH transmission configured by the configuration grant configuration, if the configuration grant configuration does not contain a specific parameter, the UE selects the RS from the ID value of the pathloss reference RS mapped to the SRI field in the DCI format that activates the PUSCH transmission. A resource index _qd may be determined. If the DCI format does not include the SRI field, the UE may determine the RS resource index q _d with a pathloss reference RS ID of zero.

Δ _TF,b,f,c (i) is the transmission power adjustment component (offset, transmission format compensation) for UL BWP b of carrier f in serving cell c.

f _b,f,c (i,l) is the PUSCH power control adjustment state for active UL BWP b of carrier f in serving cell c at transmission opportunity i. f _b,f,c (i,l) may be based on δ _PUSCH,b,f,c (i,l).

If TPC accumulation is enabled, f _b,f,c (i,l) may be based on the accumulated values of δ _PUSCH,b,f,c (m,l).

If TPC accumulation is disabled, f _b,f,c (i,l) may be δ _PUSCH,b,f,c (i,l) (absolute value).

If the information indicating disabled TPC accumulation (TPC-Accumulation) is not set (if the information indicating disabled TPC accumulation is not provided, if TPC accumulation is enabled), the UE sets the TPC command value Accumulate and determine transmit power (apply TPC command value via accumulation) based on accumulation result (power control state).

When information indicating invalidity of TPC accumulation (TPC-Accumulation) is set (when information indicating invalidation of TPC accumulation is provided, when TPC accumulation is set to be invalid), the UE uses the TPC command Determine transmit power based on TPC command value (power control state) without accumulating values (apply TPC command value without accumulation).

δ _PUSCH,b,f,c (i,l) is a TPC command value included in DCI format 0_0 or DCI format 0_1 that schedules PUSCH transmission opportunity i on active UL BWP b of carrier f of serving cell c, or a specific TPC command value encoded in conjunction with other TPC commands in DCI format 2_2 with CRC scrambled by a Radio Network Temporary Identifier (RNTI) (e.g., TPC-PUSCH-RNTI) of .

Σ _m=0 ^C(Di)−1 δ _PUCCH,b,f,c (m,l) is the sum of the TPC command values in the set D _i of TPC command values with cardinality C(D _i ) may be D _i is K _PUSCH (ii ₀ )−1 symbols before PUSCH transmission opportunity ii ₀ on active UL BWP b of carrier f in serving cell c and PUSCH transmission opportunity ii for PUSCH power control adjustment state l. It may be the set of TPC command values received between K _PUSCH (i) symbols before and after i. i ₀ may be the smallest positive integer such that K _PUSCH (ii ₀ ) symbols before PUSCH transmission opportunity ii 0 is earlier than K _PUSCH (i) symbols before PUSCH transmission _opportunity i.

If a PUSCH transmission is scheduled with DCI format 0_0 or DCI format 0_1, K _PUSCH (i) is the serving cell after the last symbol of the corresponding PDCCH reception and before the first symbol of that PUSCH transmission. c may be the number of symbols in active UL BWP b for carrier f. If PUSCH transmission is configured by configured grant configuration information (ConfiguredGrantConfig), K _PUSCH (i) is the number of symbols per ^slot N _symb slot in active UL BWP b of carrier f in serving cell c and PUSCH common configuration information It may be the number of K _PUSCH,min symbols equal to the product of the minimum of the values provided by k2 in (PUSCH-ConfigCommon).

The power control adjustment state may be set to have a plurality of states (for example, two states) or a single state depending on upper layer parameters. Also, if multiple power control adjustment states are configured, an index l (eg, lε{0,1}) may identify one of the multiple power control adjustment states.

(Multi-TRP PUSCH repeat)
In NR, one or more transmission/reception points (Transmission/Reception Points (TRP)) (multi-TRP (Multi-TRP (M-TRP))) uses one or more panels (multi-panels) to It is considered to perform DL transmission to. It is also being considered for a UE to perform UL transmissions using one or more panels for one or more TRPs.

By the way, in future wireless systems (for example, NR after Rel. 17), using a single DCI for performing multiple TRP PUSCH repetition transmission (MTRP PUSCH repetition), multiple (for example, two) SRS Indicating a resource identifier (SRS Resource Indicator (SRI))/transmitted precoding matrix indicator (TPMI) is under consideration.

For example, the UE may determine the precoder for PUSCH transmission based on SRI, Transmitted Rank Indicator (TRI) and TPMI for codebook-based transmission. The UE may determine the precoder for PUSCH transmission based on the SRI for non-codebook-based transmission. Note that the SRI may be specified for the UE by the DCI or given by higher layer parameters.

Thus, both codebook-based and non-codebook-based PUSCH transmission may be supported for a single DCI-based M-TRP PUSCH repetition scheme.

In such a case, the maximum number of SRS resource sets may be extended to X (eg, X=2). Also, multiple (eg, two) SRI fields corresponding to multiple (eg, two) SRS resource sets are included in a predetermined DCI format (eg, DCI format 0_1/0_2) used for the PUSCH schedule. may be supported. Each SRI field may indicate the SRI for each TRP.

Dynamic switching (or switching) between multi-TRP operation and single-TRP operation may be supported. In this case, the downlink control information may support a field for indicating dynamic switching (for example, a new field) (see FIG. 1). FIG. 1 shows a case where a 2-bit field is used to instruct switching between the single TRP mode and the multi-TRP mode. Of course, the number of bits and the instruction contents corresponding to each code point are not limited to these. The new field may be the SRS Resource Set Indicator field.

One or more SRS resource sets (eg, first SRS resource set and second SRS resource set) used for multi-TRP PUSCH scheduled according to a predetermined DCI format may be defined by entries in higher layer parameters. . The higher layer parameters may be higher layer parameters related to SRS resource sets (eg, srs-ResourceSetToAddModList/srs-ResourceSetToAddModListDCI-0-2 included in SRS-config).

The presence of fields for dynamic switching (eg, new fields, SRS resource set indicator fields) included in DCI may be determined separately in multiple DCI formats (eg, DCI format 0_1 and DCI format 0_2). For example, whether or not a new field exists in each DCI format may be determined depending on whether or not multiple (for example, two) SRS resource sets are configured for each DCI format.

The same number of SRS resources may be supported in multiple (eg, two) SRS resource sets. For example, for codebook-based multi-TRP PUSCH repetition, the number of SRS ports indicated by the two SRIs may be the same.

Two SRIs, two TPMIs, and two power control parameter sets may be indicated. Two SRI/TPMI/power control parameter sets may be applied to K PUSCH repetitions (K consecutive slots for repetition type A) using cyclic or sequential mapping.

Each codepoint in the SRS resource set indicator field is associated with the SRS resource set and SRI/TPMI fields. Here, the SRI field is used for both CB and NCB, and the TPMI field is used for CB only. Codepoint "00" in the SRS resource set indicator field is associated with single TRP mode using the first SRS resource set (TRP1) and the first SRI/TPMI field (second SRI/TPMI field is not used). Codepoint "01" of the SRS resource set indicator field is associated with the single TRP mode using the second SRS resource set (TRP2) and the first SRI/TPMI field (second SRI/TPMI field is not used). Codepoint "10" in the SRS Resource Set Indicator field is associated with the multi-TRP mode (TRP1, TRP2 in order) and both the first and second SRI/TPMI fields. Here, the first SRI/TPMI field corresponds to the first SRS resource set and the second SRI/TPMI field corresponds to the second SRS resource set. Codepoint "11" in the SRS Resource Set Indicator field is associated with the multi-TRP mode (in order of TRP2, TRP1) and both the first and second SRI/TPMI fields. Here, the first SRI/TPMI field corresponds to the first SRS resource set and the second SRI/TPMI field corresponds to the second SRS resource set.

If DCI format 0_1 or DCI format 0_2 indicates codepoint "10" for the SRS resource set indicator, the association of the first and second SRS resource sets to K consecutive slots is from association 1-1 below. 1-3 may be followed.
[Association 1-1]
For K=2, the first and second SRS resource sets are applied to the first and second slots of two consecutive slots, respectively.
[Association 1-2]
If K>2 and cyclicMapping in PUSCH-Config is enabled, then the first and second SRS resource sets are allocated to the first of K consecutive slots. and second slots, respectively, followed by the same SRS resource set mapping pattern for the remaining slots of K consecutive slots.
[Association 1-3]
If K>2 and if sequentialMapping in PUSCH-Config is enabled, then the first SRS resource set is allocated to the first and second slots of K consecutive slots. , the second SRS resource set is applied to the third and fourth slots of K consecutive slots, and the remaining of K consecutive slots follows the same SRS resource set mapping pattern.

Otherwise, if DCI format 0_1 or DCI format 0_2 indicates codepoint "11" for the SRS resource set indicator, the association of the first and second SRS resource sets to K consecutive slots is as follows: Associations 2-1 to 2-3 may be followed.
[Association 2-1]
For K=2, the second and first SRS resource sets are applied to the first and second slots of two consecutive slots, respectively.
[Association 2-2]
If K>2 and cyclicMapping in PUSCH-Config is enabled, the second and first SRS resource sets are allocated to the first and second of K consecutive slots. slots respectively, and the remaining slots of K consecutive slots are followed by the same SRS resource set mapping pattern.
[Association 2-3]
If K>2 and if sequentialMapping in PUSCH-Config is enabled, then the second SRS resource set is allocated to the first and second slots of K consecutive slots. , the first SRS resource set is applied to the 3rd and 4th slots of K consecutive slots, and the remaining of K consecutive slots follow the same SRS resource set mapping pattern.

　Fig. 2 shows Rel. An example of 17 multi-TRP PUSCH repetition is shown. This example uses cyclic mapping with the order TRP1, TRP2. That is, codepoint 10 is indicated for the SRS resource set indicator field. PUSCH repetitions are transmitted over consecutive slots #1 to #4. First SRI/TPMI/power control parameters are applied to slots #1 and #3, and second SRI/TPMI/power control parameters are applied to slots #2 and #4.

(coverage extension)
Rel. In V.17 coverage extensions, the following extensions 1 to 3 are being considered for PUSCH.
[Extension 1]
Transport block processing over multiple slots (TBoMS). One TB is processed and transmitted over multiple slots (N slots). N may be set in each row of a time domain resource allocation (TDRA) table, or may be set outside the TDRA table.
[Extension 2]
With TBoMS, PUSCH repetition type A (K repetitions) may be configured. Each iteration is a TBoMS with N slots. A total of PUSCH transmissions with TBoMS and repetition type A are in N*K slots. In the example of FIG. 3A, K=4, N=4, one TB is transmitted over 4 slots, and repeated transmissions are performed over a total of 16 slots.
[Extension 3]
Available slots are TDD UL-DL common configuration (tdd-UL-DL-ConfigurationCommon), TDD UL-DL individual configuration (tdd-UL-DL-ConfigurationDedicated), SSB position in burst (ssb- PositionsInBurst) and/or. The UE selects N*K N*K slot may be determined. At least one symbol in a slot overlaps the DL symbol indicated by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated, or SS/ with the index provided by ssb-PositionsInBurst If it overlaps a symbol of the PBCH block, that slot is not counted in the number of N*K slots (not available). In the example of FIG. 3B, K=4 and N=4. At each iteration, a slot (Fig. The TB is transmitted over four slots, except slot "D" and slot "SSB" in the middle).

It is not yet under consideration whether and how TBoMS and determination of available slots are supported using multi-TRP. If these are not defined appropriately, communication throughput, communication quality, etc. may deteriorate.

Therefore, the inventors came up with a method of TBoMS using multi-TRP and determination of available slots.

Hereinafter, embodiments according to the present disclosure will be described in detail with reference to the drawings. Each of the following embodiments (for example, each case) may be used alone, or at least two of them may be combined and applied.

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

In the present disclosure, activate, deactivate, indicate (or indicate), select, configure, update, determine, etc. may be read interchangeably. In the present disclosure, supporting, controlling, controllable, operating, capable of operating, etc. may be read interchangeably.

In the present disclosure, Radio Resource Control (RRC), RRC parameters, RRC messages, higher layer parameters, information elements (IEs), settings, etc. may be read interchangeably. In the present disclosure, Medium Access Control control element (MAC Control Element (CE)), update command, activation/deactivation command, etc. may be read interchangeably.

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

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

In the present disclosure, the physical layer signaling may be, for example, downlink control information (DCI), uplink control information (UCI), or the like.

In the present disclosure, indices, identifiers (ID), indicators, resource IDs, etc. may be read interchangeably. In the present disclosure, sequences, lists, sets, groups, groups, clusters, subsets, etc. may be read interchangeably.

In the present disclosure, panels, UE panels, panel groups, beams, beam groups, precoders, Uplink (UL) transmitting entities, Transmission/Reception Points (TRPs), base stations, Spatial Relation Information (SRI )), spatial relationship, SRS resource indicator (SRI), control resource set (COntrol REsource SET (CORESET)), physical downlink shared channel (PDSCH), codeword (CW), transport Block (Transport Block (TB)), reference signal (Reference Signal (RS)), antenna port (e.g. demodulation reference signal (DeModulation Reference Signal (DMRS)) port), antenna port group (e.g. DMRS port group), Group (e.g., spatial relationship group, Code Division Multiplexing (CDM) group, reference signal group, CORESET group, Physical Uplink Control Channel (PUCCH) group, PUCCH resource group), resource (e.g., reference signal resource, SRS resource), resource set (for example, reference signal resource set), CORESET pool, downlink Transmission Configuration Indication state (TCI state) (DL TCI state), uplink TCI state (UL TCI state), unified TCI State (unified TCI state), common TCI state (common TCI state), Quasi-Co-Location (QCL), QCL assumption, etc. may be read interchangeably.

In the present disclosure, time domain resource allocation and time domain resource assignment may be read interchangeably.

(Wireless communication method)
In each embodiment, N may be the number of slots in TBoMS (eg, numberOfSlotsTBoMS). In each embodiment, K may be the number of repetitions (eg, numberOfRepetition).

In each embodiment, TBoMS (N>1) may be set/indicated by means of one of Cases 1-1 to 1-4 below.
[Case 1-1] N>1 is set in a row of the TDRA table and that row is indicated by the PUSCH scheduling DCI.
[Case 1-2] N>1 is set in any of the rows of the TDRA table set by RRC (IE).
[Cases 1-3] N>1 is provided by higher layer configuration parameters for type 1 configured grant (CG) PUSCH (similar to repK).
[Cases 1-4] N>1 is set in some rows of the TDRA table set by RRC (IE) and N>1 is indicated for Type 1 CG PUSCH by RRC setting.

In each embodiment, no repetition (K=1) may be set/indicated by means of one of cases 2-1 to 2-4 below.
[Case 2-1] K=1 is set in a row of the TDRA table and that row is indicated by the PUSCH scheduling DCI.
[Case 2-2] K does not exist. Alternatively, K=1 is set in any of the TDRA table rows set by RRC (IE).
[Case 2-3] K=1 is provided by the iteration number (eg, repK, other than the TDRA table).
[Case 2-4] K=1 is set in any of several rows of the TDRA table set by RRC (IE) and K=1 is indicated for Type 1 CG PUSCH by RRC setting be.

In each embodiment, repetition (K>1) may be set/indicated by means of one of Cases 3-1 to 3-4 below.
[Case 3-1] K>1 is set in a row of the TDRA table and the row is indicated by the PUSCH scheduling DCI.
[Case 3-2] K>1 is set in any of the rows of the TDRA table set by RRC (IE).
[Case 3-3] K>1 is provided by the repeat number (eg, repK).
[Case 3-4] K>1 is set in some rows of the TDRA table set by RRC (IE) and K>1 is indicated for Type 1 CG PUSCH by RRC setting.

In each embodiment, multi-TRP PUSCH may be set/indicated by means of one of cases 4-1 to 4-4 below.
[Case 4-1] The dynamic single-TRP/multi-TRP switching field in the PUSCH scheduling DCI (for example, the SRS resource set indicator field in Rel.17 or other fields in future releases) indicates multi-TRP ( For example, the codepoint of the SRS resource set indicator field in Rel.17 is 10 or 11).
[Case 4-2] Two TCI/SRI/TPMI fields are set by RRC (IE).
[Case 4-3] Two TCI/SRI/TPMI are indicated by one TCI/SRI/TPMI field in the PUSCH scheduling DCI.
[Case 4-4] Two SRS resource sets for CB/NCB are configured by RRC (IE).

In each embodiment, the first/second TCI/SRI/TPMI/power control parameters may refer to any of parameters 1-3 below.
[Parameter 1]
TCI/SRI/TPMI/power control parameters associated with the first/second TCI/SRI/TPMI fields.
[Parameter 2]
TCI/SRI/TPMI/power control parameters associated with the first/second TCI/SRI/TPMI indicated by one TCI/SRI/TPMI field.
[Parameter 3]
TCI/SRI/TPMI/power control parameters associated with the first/second SRS resource set (SRS resource set with lower/higher ID).

In each embodiment, the power control parameters may include P0/alpha/closed-loop index.

In each embodiment, by replacing the PUSCH scheduling DCI with CG settings, each embodiment may be applied to CG PUSCH.

In each embodiment, parameters, parameters for transmission for one TRP, TCI/SRI/TPMI/power control parameters, SRS resource sets, and SRS resource sets associated with parameters may be read interchangeably. Similarly, i-th parameter, parameter for transmission for i-th TRP, i-th TCI/SRI/TPMI/power control parameter, i-th SRS resource set, i-th TCI/SRI/TPMI/power control SRS resource sets associated with the parameters may be read interchangeably. Here, i may be an integer greater than or equal to 1, such as 1 or 2.

In each embodiment, mapping, pattern, mapping pattern, SRS resource set mapping pattern, and application may be read interchangeably.

In each embodiment, the TDRA table and TDRA list may be read interchangeably. In each embodiment, the rows of the TDRA table and the elements/entries of the TDRA list may be read interchangeably.

In each embodiment, transport blocks, code blocks, and UL data may be read interchangeably.

<First Embodiment>
This embodiment relates to multi-TRP PUSCH and TBoMS (N>1, K=1) without repetition.

The UE may follow any of the following options 1-1, 1-2, variations of 1-2.

《Option 1-1》
For PUSCH transmission, the UE does not assume that TBoMS without repetition (N>1, K=1) is configured/indicated and multi-TRP PUSCH is configured/indicated. In this case, N slots of TBoMS may be sent to the same TRP. That is, the same TCI/SRI/TPMI/power control parameters may be applied to N slots of a TBoMS.

Fig. 4 shows an example of Option 1-1. In this example N=4. One TB is transmitted to one TRP over 4 slots.

《Option 1-2》
For PUSCH transmission, the UE may assume that TBoMS without repetition (N>1, K=1) is configured/indicated and multi-TRP PUSCH is configured/indicated. In this case, N slots of TBoMS may be sent to multiple TRPs. That is, different TCI/SRI/TPMI/power control parameters may be applied to the N slots of TBoMS.

Multiple (two) TCI/SRI/TPMI/power control parameters may be applied to multiple (N) slots using any of patterns 1 to 8 below.

[Pattern 1]
Cyclic mapping with order from TRP1 to TRP2: the first TCI/SRI/TPMI/power control parameters are applied to the first slot, the second TCI/SRI/TPMI/power control parameters are applied to the second , and the same pattern continues for the remaining of the N slots.

FIG. 5A shows an example of pattern 1 of option 1-2. In this example, N=4 and one TB is transmitted over 4 slots. Of the four slots, transmissions in the first and third slots use the first TCI/SRI/TPMI/power control parameters (sent to TRP1). Of the four slots, transmissions in the second and fourth slots use the second TCI/SRI/TPMI/power control parameters (sent to TRP2).

[Pattern 2]
Cyclic mapping with order from TRP2 to TRP1: the second TCI/SRI/TPMI/power control parameters are applied to the first slot, the first TCI/SRI/TPMI/power control parameters are applied to the second , and the same pattern continues for the remaining of the N slots.

FIG. 5B shows an example of pattern 2 of option 1-2. In this example, N=4 and one TB is transmitted over 4 slots. Of the four slots, transmissions in the first and third slots use the second TCI/SRI/TPMI/power control parameters (sent to TRP2). Of the four slots, transmissions in the second and fourth slots use the first TCI/SRI/TPMI/power control parameters (sent to TRP1).

[Pattern 3]
Sequential mapping with order from TRP1 to TRP2: the first TCI/SRI/TPMI/power control parameters are applied to the first and second slots, the second TCI/SRI/TPMI/power control parameters are The same pattern follows for the remaining slots of the N slots, applied to the 3rd and 4th slots.

FIG. 6A shows an example of pattern 3 of option 1-2. In this example, N=4 and one TB is transmitted over 4 slots. Of the four slots, transmissions in the first and second slots use the first TCI/SRI/TPMI/power control parameters (sent to TRP1). Of the four slots, transmissions in the third and fourth slots use the second TCI/SRI/TPMI/power control parameters (sent to TRP2).

[Pattern 4]
Sequential mapping with order from TRP2 to TRP1: the second TCI/SRI/TPMI/power control parameters are applied to the first and second slots, the first TCI/SRI/TPMI/power control parameters are The same pattern follows for the remaining slots of the N slots, applied to the 3rd and 4th slots.

FIG. 6B shows an example of pattern 4 of option 1-2. In this example, N=4 and one TB is transmitted over 4 slots. Of the four slots, transmissions in the first and second slots use the second TCI/SRI/TPMI/power control parameters (sent to TRP2). Of the four slots, transmissions in the third and fourth slots use the first TCI/SRI/TPMI/power control parameters (sent to TRP1).

[Pattern 5]
Half-half mapping with order from TRP1 to TRP2: first TCI/SRI/TPMI/power control parameters in first floor(N/2) slots or first ceil(N/2) slots, and the second TCI/SRI/TPMI/power control parameters are applied to the remaining of the N slots.

FIG. 7A shows an example of pattern 5 of option 1-2. In this example, N=8 and one TB is transmitted over 8 slots. Of the eight slots, transmissions in the first through fourth slots use the first TCI/SRI/TPMI/power control parameters (sent to TRP1). Of the four slots, transmissions in the fifth through eighth slots use the second TCI/SRI/TPMI/power control parameters (sent to TRP2).

[Pattern 6]
Half-half mapping with order from TRP2 to TRP1: second TCI/SRI/TPMI/power control parameters in first floor(N/2) slots or first ceil(N/2) slots, and the first TCI/SRI/TPMI/power control parameters are applied to the remaining of the N slots.

FIG. 7B shows an example of pattern 6 of option 1-2. In this example, N=8 and one TB is transmitted over 8 slots. Of the eight slots, transmissions in the first through fourth slots use the second TCI/SRI/TPMI/power control parameters (sent to TRP2). Of the four slots, transmissions in slots 5 through 8 use the first TCI/SRI/TPMI/power control parameters (sent to TRP1).

[Pattern 7]
Configurable pattern with order from TRP1 to TRP2: the first TCI/SRI/TPMI/power control parameters are applied to the first X slots, the second TCI/SRI/TPMI/power control parameters are , is applied to the second X slots, and the same pattern continues for the remaining of the N slots.

[Pattern 8]
Configurable pattern with order from TRP2 to TRP1: the second TCI/SRI/TPMI/power control parameters are applied to the first X slots, the first TCI/SRI/TPMI/power control parameters are , is applied to the second X slots, and the same pattern continues for the remaining of the N slots.

Option 1-2 pattern 1/2 (first mapping) assigns the first and second TCI/SRI/ Two different parameters from TPMI/power control parameters/SRS resource set may be applied. Here, i may be an integer of 0 or more.

Option 1-2 pattern 3/4 (second mapping) assigns a Two different parameters from the first and second TCI/SRI/TPMI/power control parameters/SRS resource sets may be applied. Here, i may be an integer of 0 or more.

Option 1-2 pattern 5/6 (third mapping) is the first and second slots of the N slots, the first and second TCI / SRI / TPMI / power control parameters / SRS resources Two different parameters from the set may be applied.

Option 1-2 pattern 7/8 (fourth mapping) applies to slots 4Xj+1 to 4Xj+X of N slots and slots 4Xj+X+1 to 4Xj+2X of N slots. , two different parameters from the first and second TCI/SRI/TPMI/power control parameters/SRS resource sets may be applied. Here, j may be an integer of 0 or more.

Only some of patterns 1 to 8 (eg, patterns 1 to 4) may be supported.

A plurality of patterns among patterns 1 to 8 may be switched by RRC signaling, MAC CE, DCI, or a combination of RRC signaling/MAC CE/DCI (information indicating one mapping). For example, cyclic mapping or sequential mapping may be switched by RRC signaling. The order of TRPs may be switched by the DCI field in the PUSCH scheduling DCI.

《Variation of Option 1-2》
For PUSCH transmission, the UE is configured/indicated TBoMS without repetition (N>1, K=1) and even if multi-TRP PUSCH is configured/indicated, the default one ( One of the TCI/SRI/TPMI/power control parameters of the default TRP) may be applied. In this case, N slots of TBoMS may be sent to the same TRP. That is, the same TCI/SRI/TPMI/power control parameters may be applied to N slots of a TBoMS. It may be defined which of the first or second TCI/SRI/TPMI/power control parameters is applied as default.

According to this embodiment, the UE can properly perform multi-TRP PUSCH and TBoMS without repetition.

<Second embodiment>
This embodiment relates to multi-TRP PUSCH and TBoMS (N>1, K>1) with repetition.

The UE may follow either of options 2-1 and 2-2 below.

《Option 2-1》
For PUSCH transmission, the UE does not assume that TBoMS with repetition (N>1, K>1) is configured/indicated and multi-TRP PUSCH is configured/indicated.

《Option 2-2》
For PUSCH transmission, the UE assumes that TBoMS with repetition (N>1, K>1) is configured/indicated and multi-TRP PUSCH is configured/indicated. The UE may follow any of options 2-2-1 to 2-2-3 below.

[Option 2-2-1]
K repetitions may be sent to multiple TRPs. That is, different TCI/SRI/TPMI/power control parameters may be applied for the K iterations. In each iteration, N slots of TBoMS may be sent to the same TRP. That is, the same TCI/SRI/TPMI/power control parameters may be applied to N slots of a TBoMS. Each iteration may use N slots. Multiple (two) TCI/SRI/TPMI/power control parameters may be applied in multiple (K) iterations using any of the patterns 1 through 8 below.

[Pattern 1]
Cyclic mapping with order from TRP1 to TRP2: the first TCI/SRI/TPMI/power control parameters are applied in the first iteration (first N slots), the second TCI/SRI/ The TPMI/power control parameters are applied to the second iteration (second N slots) and the same pattern is applied to the remaining iterations (remaining slots) of the K iterations (N*K slots). Continue.

FIG. 8A shows an example of pattern 1 of option 2-2-1. In this example, N=4, K=4, one repetition of one TB is transmitted over 4 slots, and 4 repetitions are transmitted over 16 slots. Of the four iterations, the first and third iteration transmissions use the first TCI/SRI/TPMI/power control parameters (sent to TRP1). Of the four iterations, the second and fourth iteration transmissions use the second TCI/SRI/TPMI/power control parameters (sent to TRP2).

[Pattern 2]
Cyclic mapping with order from TRP2 to TRP1: the second TCI/SRI/TPMI/power control parameters are applied in the first iteration (first N slots), the first TCI/SRI/ The TPMI/power control parameters are applied to the second iteration (second N slots) and the same pattern is applied to the remaining iterations (remaining slots) of the K iterations (N*K slots). Continue.

FIG. 8B shows an example of pattern 2 of option 2-2-1. In this example, N=4, K=4, one repetition of one TB is transmitted over 4 slots, and 4 repetitions are transmitted over 16 slots. Of the four iterations, the first and third iteration transmissions use the second TCI/SRI/TPMI/power control parameters (sent to TRP2). Of the four iterations, the second and fourth iteration transmissions use the first TCI/SRI/TPMI/power control parameters (sent to TRP1).

[Pattern 3]
Sequential mapping with order from TRP1 to TRP2: the first TCI/SRI/TPMI/power control parameters are applied in the first and second iterations (first and second N slots), the second of TCI/SRI/TPMI/power control parameters are applied for the 3rd and 4th iterations (3rd and 4th N slots) and for the remaining K iterations (N*K slots) Repeats (remaining slots) follow the same pattern.

[Pattern 4]
Sequential mapping with order from TRP2 to TRP1: the second TCI/SRI/TPMI/power control parameters are applied to the first and second iterations (first and second N slots), the first of TCI/SRI/TPMI/power control parameters are applied for the 3rd and 4th iterations (3rd and 4th N slots) and for the remaining K iterations (N*K slots) Repeats (remaining slots) follow the same pattern.

[Pattern 5]
Half-half mapping with order from TRP1 to TRP2: The first TCI/SRI/TPMI/power control parameter is applied to the first floor(K/2) iterations (first floor(N*K/2) iterations). slots) or the first ceil(K/2) iterations (the first ceil(N*K/2) slots) where the second TCI/SRI/TPMI/power control parameters are: It applies to the remaining iterations (remaining slots) of the K iterations (N*K slots).

[Pattern 6]
Half-half mapping with order from TRP2 to TRP1: the second TCI/SRI/TPMI/power control parameters are used for the first floor(K/2) iterations (first floor(N*K/2) slots) or the first ceil(K/2) iterations (the first ceil(N*K/2) slots) where the first TCI/SRI/TPMI/power control parameters are: It applies to the remaining iterations (remaining slots) of the K iterations (N*K slots).

[Pattern 7]
Configurable pattern with order from TRP1 to TRP2: the first TCI/SRI/TPMI/power control parameters are applied for the first X iterations (first N*X slots), the second The TCI/SRI/TPMI/power control parameters are applied to the second X iterations (second N*X slots) and the remaining iterations of K iterations (N*K slots) ( remaining slots), the same pattern follows.

[Pattern 8]
Configurable pattern with order from TRP2 to TRP1: 2nd TCI/SRI/TPMI/power control parameters are applied for the first X iterations (first N*X slots); The TCI/SRI/TPMI/power control parameters are applied to the second X iterations (second N*X slots) and the remaining iterations of K iterations (N*K slots) ( remaining slots), the same pattern follows.

Option 2-2-1 pattern 1/2 (first mapping) assigns the first and second TCI/ Two different parameters from the SRI/TPMI/power control parameters/SRS resource set may be applied. Here, i may be an integer of 0 or more.

Option 2-2-1 pattern 3/4 (second mapping) is applied to the 4i + 1st and 4i + 2nd repetitions of K repetitions and the 4i + 2nd and 4i + 3rd repetitions of K repetitions. , two different parameters from the first and second TCI/SRI/TPMI/power control parameters/SRS resource sets may be applied. Here, i may be an integer of 0 or more.

Pattern 5/6 (third mapping) of Option 2-2-1 assigns the first and second TCI/SRI/TPMI/power control parameters/ Two different parameters from the SRS resource set may be applied.

Option 2-2-1 pattern 7/8 (fourth mapping) repeats 4Xj+1 to 4Xj+X of K repetitions and repeats 4Xj+X+1 to 4Xj+2X of K repetitions , two different parameters from the first and second TCI/SRI/TPMI/power control parameters/SRS resource sets may be applied. Here, j may be an integer of 0 or more.

Only some of patterns 1 to 8 (eg, patterns 1 to 4) may be supported.

Option 2-2-1 may follow at least one of actions A to D below.

[Action A]
SRS resource set list (srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2), the UE may follow the following action a.

[[action a]]
If the PUSCH is scheduled with DCI format 0_1 or 0_2, the UE may follow actions a1 and a2 below.

--- Action a1
If AvailableSlotCounting is enabled, the same symbol placement is applied across the N*K slots determined for the PUSCH transmission, and the PUSCH is restricted to a single transmission layer. good too. The UE repeats the TB across the N*K slots determined for its PUSCH transmission, applying the same symbol placement in each slot, and the first The associations of the first and second SRS resource sets to each slot may be determined as the following associations a1 to a4.

----Association a1
If DCI format 0_1 or 0_2 indicates codepoint "00" for the SRS resource set indicator, the first SRS resource set is associated with all of the N*K slots determined for that PUSCH transmission. may

----Association a2
If the DCI format 0_1 or 0_2 indicates codepoint "01" for the SRS resource set indicator, the second SRS resource set is associated with all of the N*K slots determined for that PUSCH transmission. may

----Association a3
If DCI format 0_1 or DCI format 0_2 indicates codepoint "10" for the SRS resource set indicator, the association of the first and second SRS resource sets to the determined N*K slots for that PUSCH transmission. may be determined as follows.
If K=2, then the first and second SRS resource sets are determined for the PUSCH transmission in the first N slots (from the first slot to the Nth slot) and the second , N slots (from the N+1th slot to the 2Nth slot), respectively.
If K>2 and cyclicMapping in PUSCH-Config is enabled, then the first and second SRS resource sets are determined for that PUSCH transmission of the N*K slots, the first N slots (from the first slot to the Nth slot) and the second N slots (from the N+1th slot to the 2Nth slot) , respectively, followed by the same SRS resource set mapping pattern for the remaining slots of the N*K slots determined for that PUSCH transmission.
If K > 2 and if sequentialMapping in PUSCH-Config is enabled, the first SRS resource set is determined for that PUSCH transmission N*K of the slots, the first N slots (from the first slot to the Nth slot) and the second N slots (from the N+1th slot to the 2Nth slot). , the second SRS resource set is located in the 3rd N slots (from the 2N+1th slot to the 3Nth slot) and the 4th out of the N*K slots determined for that PUSCH transmission. The same SRS resource set mapping pattern applies to the N slots (from the 3N+1th slot to the 4Nth slot) and the rest of the N*K slots determined for that PUSCH transmission followed by the same SRS resource set mapping pattern. .

----Association a4
Otherwise, if DCI format 0_1 or DCI format 0_2 indicates codepoint "11" for the SRS resource set indicator, the first and second to the N*K slots determined for that PUSCH transmission. The association of SRS resource sets may be according to the following.
If K=2, the second and first SRS resource sets are determined for the PUSCH transmission in the first N slots (from the first slot to the Nth slot) and the second , N slots (from the N+1th slot to the 2Nth slot), respectively.
If K>2 and cyclicMapping in PUSCH-Config is enabled, then the second and first SRS resource sets are determined for that PUSCH transmission of the N*K slots, the first N slots (from the first slot to the Nth slot) and the second N slots (from the N+1th slot to the 2Nth slot) , respectively, followed by the same SRS resource set mapping pattern for the remaining slots of the N*K slots determined for that PUSCH transmission.
If K > 2 and if sequentialMapping in PUSCH-Config is enabled, the second SRS resource set is determined for that PUSCH transmission N*K of the slots, the first N slots (from the first slot to the Nth slot) and the second N slots (from the N+1th slot to the 2Nth slot). , the first SRS resource set is located in the 3rd N slots (from the 2N+1th slot to the 3Nth slot) and the 4th out of the N*K slots determined for that PUSCH transmission. The same SRS resource set mapping pattern applies to the N slots (from the 3N+1th slot to the 4Nth slot) and the rest of the N*K slots determined for that PUSCH transmission followed by the same SRS resource set mapping pattern. .

--- Action a2
Otherwise (if AvailableSlotCounting is not enabled), the same symbol constellation is applied across the N*K consecutive slots determined for that PUSCH transmission, limiting the PUSCH to a single transmission layer. good too. The UE may repeat the TB across the N*K consecutive slots determined for its PUSCH transmission, applying the same symbol placement in each slot.

[Action B]
SRS resource set list (srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2), if two SRS resource sets are configured, the UE may follow action b below.

[[action b]]
If the PUSCH is scheduled with DCI format 0_1 or 0_2, the UE may follow action a1 above and b2 below.

--- operation b2
Otherwise (if AvailableSlotCounting is not enabled), the same symbol constellation is applied across the N*K consecutive slots determined for that PUSCH transmission, even if the PUSCH is confined to a single transmission layer. good. The UE repeats the TB across N*K consecutive slots determined for its PUSCH transmission, applying the same symbol placement in each slot, and The association of the first and second SRS resource sets to each slot may be determined as the following associations b1 to b4.

----Association b1
If DCI format 0_1 or 0_2 indicates codepoint "00" for the SRS resource set indicator, the first SRS resource set is associated with all N*K contiguous slots determined for that PUSCH transmission. may be

----Association b2
If DCI format 0_1 or 0_2 indicates codepoint "01" for the SRS resource set indicator, then the second SRS resource set is associated with all N*K contiguous slots determined for that PUSCH transmission. may be

----Association b3
If DCI format 0_1 or DCI format 0_2 indicates codepoint "10" for the SRS resource set indicator, then the first and second SRS resource sets into N*K consecutive slots determined for that PUSCH transmission. Associations may be determined as follows.
If K=2, then the first and second SRS resource sets are determined for the PUSCH transmission in the first N slots (from the first slot to the Nth slot) and the second , N slots (from the N+1th slot to the 2Nth slot), respectively.
If K>2 and cyclicMapping in PUSCH-Config is enabled, then the first and second SRS resource sets are determined for that PUSCH transmission Among the N*K consecutive slots, the first N slots (from the first slot to the Nth slot) and the second N slots (from the N+1th slot to the 2Nth slot ), respectively, followed by the same SRS resource set mapping pattern in the remaining slots of the N*K consecutive slots determined for that PUSCH transmission.
If K > 2 and if sequentialMapping in PUSCH-Config is enabled, the first SRS resource set is determined for that PUSCH transmission N*K of the consecutive slots, the first N slots (from the first slot to the Nth slot) and the second N slots (from the N+1th slot to the 2Nth slot) and the second SRS resource set is allocated to the 3rd N slots (from the 2N+1th slot to the 3Nth slot) and the 3rd N*K consecutive slots determined for that PUSCH transmission. 4 N slots (from the 3N+1th slot to the 4Nth slot), and the same SRS resource set mapping to the remaining slots of the N*K contiguous slots determined for that PUSCH transmission. pattern continues.

----Association b4
Otherwise, if DCI format 0_1 or DCI format 0_2 indicates codepoint "11" for the SRS resource set indicator, the first and second to N*K consecutive slots determined for that PUSCH transmission. The SRS resource set association of may be according to the following.
If K=2, the second and first SRS resource sets are determined for the PUSCH transmission in the first N slots (from the first slot to the Nth slot) and the second , N slots (from the N+1th slot to the 2Nth slot), respectively.
If K>2 and cyclicMapping in PUSCH-Config is enabled, then the second and first SRS resource sets are determined for that PUSCH transmission Among the N*K consecutive slots, the first N slots (from the first slot to the Nth slot) and the second N slots (from the N+1th slot to the 2Nth slot ), respectively, followed by the same SRS resource set mapping pattern in the remaining slots of the N*K consecutive slots determined for that PUSCH transmission.
If K > 2 and if sequentialMapping in PUSCH-Config is enabled, the second SRS resource set is determined for that PUSCH transmission N*K of the consecutive slots, the first N slots (from the first slot to the Nth slot) and the second N slots (from the N+1th slot to the 2Nth slot) and the first SRS resource set is allocated to the 3rd N slots (from the 2N+1th slot to the 3Nth slot) and the 3rd N*K consecutive slots determined for that PUSCH transmission. 4 N slots (from the 3N+1th slot to the 4Nth slot), and the same SRS resource set mapping to the remaining slots of the N*K contiguous slots determined for that PUSCH transmission. pattern continues.

[Action C]
Two If the SRS resource set is configured, TB processing over multiple slots may follow the following actions c1 and c2.

--- action c1
For an unpaired spectrum, the same symbol constellation may be applied across the N*K slots determined for that PUSCH transmission, limiting the PUSCH to a single transmission layer. The UE repeats the TB across the N*K slots determined for its PUSCH transmission, applying the same symbol placement in each slot, and the first The associations of the first and second SRS resource sets to each slot may be determined as the associations a1 to a4 described above.

--- Action c2
For a paired spectrum or supplementary uplink band, the same symbol constellation is applied across N*K consecutive slots determined for that PUSCH transmission, even if the PUSCH is restricted to a single transmission layer. good. The UE may repeat the TB across the N*K consecutive slots determined for its PUSCH transmission, applying the same symbol placement in each slot.

[Action D]
Two If the SRS resource set is configured, TB processing over multiple slots may be according to c1 above and d2 below.

--- motion d2
For a paired spectrum or supplementary uplink band, the same symbol constellation may be applied across the N*K consecutive slots determined for that PUSCH transmission, limiting the PUSCH to a single transmission layer. . The UE repeats the TB across N*K consecutive slots determined for its PUSCH transmission, applying the same symbol placement in each slot, and The association of the first and second SRS resource sets to each slot may be determined as the associations b1 to b4 described above.

[Option 2-2-2]
N slots in each repetition may be sent to multiple TRPs. That is, different TCI/SRI/TPMI/power control parameters may be applied to the N slots within each repetition. In each iteration, multiple (two) TCI/SRI/TPMI/power control parameters may be applied to N slots using options 1-2.

FIG. 9A shows an example of pattern 1 of option 2-2-2. In this example, N=4, K=4, one repetition of one TB is transmitted over 4 slots, and 4 repetitions are transmitted over 16 slots. Of the four slots in each repetition, transmissions in the first and third slots use the first TCI/SRI/TPMI/power control parameters (sent to TRP1). Transmissions in the 2nd and 4th slots of the 4 slots in each repetition use the second TCI/SRI/TPMI/power control parameters (sent to TRP2).

FIG. 9B shows an example of pattern 3 of option 2-2-2. In this example, N=4, K=4, one repetition of one TB is transmitted over 4 slots, and 4 repetitions are transmitted over 16 slots. Of the four slots in each repetition, transmissions in the first and second slots use the first TCI/SRI/TPMI/power control parameters (sent to TRP1). Of the 4 slots in each repetition, transmissions in the 3rd and 4th slots use the second TCI/SRI/TPMI/power control parameters (sent to TRP2).

Fig. 10 shows an example of pattern 5 of option 2-2-2. In this example, N=8, K=2, one repetition of one TB is transmitted over 8 slots and two repetitions are transmitted over 16 slots. Of the 8 slots in each repetition, transmissions in the first through fourth slots use the first TCI/SRI/TPMI/power control parameters (sent to TRP1). Of the 4 slots in each repetition, transmissions in the 5th through 8th slots use the second TCI/SRI/TPMI/power control parameters (sent to TRP2).

Option 2-2-2 pattern 1/2 (5th mapping) assigns the 1st and 2nd Two different parameters from the two TCI/SRI/TPMI/power control parameters/SRS resource sets may be applied. Here, i may be an integer of 0 or more.

Option 2-2-2 pattern 3/4 (sixth mapping) is 4i+1 and 4i+2 of N slots in each iteration and 4i+2 of N slots in each iteration. Two different parameters from the first and second TCI/SRI/TPMI/power control parameters/SRS resource sets may be applied to the th and 4i+3 th slots. Here, i may be an integer of 0 or more.

Option 2-2-2 pattern 5/6 (7th mapping) assigns the first and second TCI/SRI/TPMI/ Two different parameters from the power control parameter/SRS resource set may be applied.

Option 2-2-2 pattern 7/8 (eighth mapping) is 4Xj+1 to 4Xj+X of N slots in each iteration and Two different parameters from the first and second TCI/SRI/TPMI/power control parameters/SRS resource sets may be applied to the 4Xj+X+1th to 4Xj+2Xth slots. Here, j may be an integer of 0 or more.

[Option 2-2-3]
N*K slots may be sent to multiple TRPs. That is, different TCI/SRI/TPMI/power control parameters may be applied to N*K slots. Multiple (two) TCI/SRI/TPMI/power control parameters are applied to N*K slots using any of the patterns 1 to 8 below (similar to options 1-2) good too.

[Pattern 1]
Cyclic mapping with order from TRP1 to TRP2: the first TCI/SRI/TPMI/power control parameters are applied to the first slot, the second TCI/SRI/TPMI/power control parameters are applied to the second , and the same pattern follows for the remaining of the N*K slots.

[Pattern 2]
Cyclic mapping with order from TRP2 to TRP1: the second TCI/SRI/TPMI/power control parameters are applied to the first slot, the first TCI/SRI/TPMI/power control parameters are applied to the second , and the same pattern follows for the remaining of the N*K slots.

[Pattern 3]
Sequential mapping with order from TRP1 to TRP2: the first TCI/SRI/TPMI/power control parameters are applied to the first and second slots, the second TCI/SRI/TPMI/power control parameters are The same pattern follows for the remaining of the N*K slots, applied to the 3rd and 4th slots.

[Pattern 4]
Sequential mapping with order from TRP2 to TRP1: the second TCI/SRI/TPMI/power control parameters are applied to the first and second slots, the first TCI/SRI/TPMI/power control parameters are The same pattern follows for the remaining of the N*K slots, applied to the 3rd and 4th slots.

[Pattern 5]
Half-half mapping with order from TRP1 to TRP2: first TCI/SRI/TPMI/power control parameters in first floor(N/2) slots or first ceil(N/2) slots, and the second TCI/SRI/TPMI/power control parameters are applied to the remaining of the N*K slots.

[Pattern 6]
Half-half mapping with order from TRP2 to TRP1: second TCI/SRI/TPMI/power control parameters in first floor(N/2) slots or first ceil(N/2) slots, and the first TCI/SRI/TPMI/power control parameters are applied to the remaining of the N*K slots.

[Pattern 7]
Configurable pattern with order from TRP1 to TRP2: the first TCI/SRI/TPMI/power control parameters are applied to the first X slots, the second TCI/SRI/TPMI/power control parameters are , is applied to the second X slots, and the same pattern continues for the remaining of the N*K slots.

[Pattern 8]
Configurable pattern with order from TRP2 to TRP1: the second TCI/SRI/TPMI/power control parameters are applied to the first X slots, the first TCI/SRI/TPMI/power control parameters are , is applied to the second X slots, and the same pattern continues for the remaining of the N*K slots.

Option 2-2-3 pattern 1/2 (9th mapping) assigns the 1st and 2nd Two different parameters from the TCI/SRI/TPMI/power control parameters/SRS resource set may be applied. Here, i may be an integer of 0 or more.

Option 2-2-3 pattern 3/4 (10th mapping) is 4i+1 and 4i+2 of N×K slots and 4i+2 and 4i+3 of N×K slots slots, two different parameters from the first and second TCI/SRI/TPMI/power control parameters/SRS resource sets may be applied. Here, i may be an integer of 0 or more.

Option 2-2-3 pattern 5/6 (eleventh mapping) assigns first and second TCI/SRI/TPMI/power control to the first and second slots of N×K slots. Two different parameters from the parameter/SRS resource set may be applied.

Option 2-2-3 pattern 7/8 (twelfth mapping) is 4Xj+1st to 4Xj+Xth of NxK slots and 4Xj+X+1st to 4Xj+2X of NxK slots th slot may apply two different parameters from the first and second TCI/SRI/TPMI/power control parameters/SRS resource sets. Here, j may be an integer of 0 or more.

Only some of patterns 1 to 8 (eg, patterns 1 to 4) may be supported.

[Differences between options 2-2-2 and 2-2-3]
FIG. 11A shows an example of pattern 1 (cyclic mapping) of option 2-2-2. In this example, N=3, K=4, one repetition of one TB is transmitted over 3 slots, and 4 repetitions are transmitted over 12 slots. Of the three slots in each repetition, transmissions in the first and third slots use the first TCI/SRI/TPMI/power control parameters (sent to TRP1). Of the three slots in each repetition, transmissions in the second slot use the second TCI/SRI/TPMI/power control parameters (sent to TRP2).

FIG. 11B shows an example of pattern 1 (cyclic mapping) of option 2-2-3. In this example, N=3, K=4, one repetition of one TB is transmitted over 3 slots, and 4 repetitions are transmitted over 12 slots. Of the 12 slots, transmissions in the 1st, 3rd, . Of the 12 slots, transmissions in the 2nd, 4th, .

According to this embodiment, the UE can properly perform multi-TRP PUSCH and TBoMS with repetition.

<Third Embodiment>
This embodiment relates to multi-TRP PUSCH and available slot determination.

If available slot determination (eg, AvailableSlotCounting) is enabled, the UE may follow at least one of available

slot determination methods

1 and 2 below.

[Available slot determination method 1]
at least one symbol indicated by the indexed row of the TDRA table in a slot overlaps with the DL symbol indicated by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated, or ssb - If it overlaps a symbol of the SS/PBCH block with the index provided by PositionsInBurst, that slot is not counted as N*K slots for TBoMS/PUSCH repetition type A scheduled by DCI format 0_1 or 0_2. (not available as N*K slots).

[Available slot determination method 2]
In the first/second embodiment, the TCI/SRI/TPMI/power control parameters are mapped to the N*K slots determined to be available for that PUSCH transmission. The N*K slots may be N*K+U contiguous slots excluding U slots that are determined to be unavailable. U may be an integer of 0 or greater.

According to this embodiment, the UE can appropriately determine slots available for multi-TRP PUSCH.

<Other embodiments>
<<UE capability information/upper layer parameters>>
Higher layer parameters (RRC IE)/UE capabilities corresponding to the functions (features) in each of the above embodiments may be defined. A higher layer parameter may indicate whether to enable the feature. UE capabilities may indicate whether the UE supports the feature.

A UE for which a higher layer parameter corresponding to that function is set may perform that function. It may be defined that "UEs for which upper layer parameters corresponding to the function are not set shall not perform the function (for example, according to Rel. 15/16)".

A UE that has reported/transmitted a UE capability indicating that it supports that function may perform that function. It may be specified that "a UE that does not report UE capabilities indicating that it supports the feature shall not perform that feature (eg according to Rel. 15/16)".

A UE may perform a function if it reports/transmits a UE capability indicating that it supports the function and the higher layer parameters corresponding to the function are configured. "If the UE does not report/transmit a UE capability indicating that it supports the function, or if the higher layer parameters corresponding to the function are not configured, the UE does not perform the function (e.g., Rel. 15/ 16) may be defined.

Which embodiment/option/choice/function among the above multiple embodiments is used may be set by higher layer parameters, may be reported by the UE as UE capabilities, or may be specified in the specification. It may be specified or determined by reported UE capabilities and higher layer parameter settings.

UE capabilities may indicate whether the UE supports at least one of the following functions.
• Multi-TRP PUSCH (N>1, K=1) for TBoMS without repetition. For example, option 1-2.
• Multi-TRP PUSCH (N>1, K>1) for TBoMS with repetition. For example option 2-2.

UE capabilities may indicate at least one of the following values:
• Maximum number of iterations of multi-TRP PUSCH (maximum number of K). Maximum number of iterations of multi-TRP PUSCH based on dynamic grant (maximum number of K). Maximum number of multi-TRP PUSCH iterations (maximum number of K) based on configured grants.
• Maximum number of slots for TBoMS (maximum number of N). Maximum number of slots for TBoMS based on dynamic grant (maximum number of N). Maximum number of slots for TBoMS (maximum number of N) based on configured grants.

According to the above UE capabilities/upper layer parameters, the UE can implement the above functions while maintaining compatibility with existing specifications.

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

FIG. 12 is a diagram showing an example of a schematic configuration of a wireless communication system according to one embodiment. The wireless communication system 1 may be a system that realizes communication using Long Term Evolution (LTE), 5th generation mobile communication system New Radio (5G NR), etc. specified by the Third Generation Partnership Project (3GPP). .

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

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

The wireless communication system 1 has dual connectivity between multiple base stations within the same RAT (for example, dual connectivity (NR-NR Dual Connectivity (NN-DC) in which both MN and SN are NR base stations (gNB) )) may be supported.

A wireless communication system 1 includes a base station 11 forming a macrocell C1 with a relatively wide coverage, and base stations 12 (12a-12c) arranged in the macrocell C1 and forming a small cell C2 narrower than the macrocell C1. You may prepare. A user terminal 20 may be located within at least one cell. The arrangement, number, etc. of each cell and user terminals 20 are not limited to the embodiment shown in the figure. Hereinafter, the base stations 11 and 12 are collectively referred to as the base station 10 when not distinguished.

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

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

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

A plurality of base stations 10 may be connected by wire (for example, an optical fiber conforming to Common Public Radio Interface (CPRI), X2 interface, etc.) or wirelessly (for example, NR communication). For example, when NR communication is used as a backhaul between the base stations 11 and 12, the base station 11 corresponding to the upper station is an Integrated Access Backhaul (IAB) donor, and the base station 12 corresponding to the relay station (relay) is an IAB Also called a node.

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

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

In the radio communication system 1, a radio access scheme based on orthogonal frequency division multiplexing (OFDM) may be used. For example, in at least one of Downlink (DL) and Uplink (UL), Cyclic Prefix OFDM (CP-OFDM), Discrete Fourier Transform Spread OFDM (DFT-s-OFDM), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), etc. may be used.

A radio access method may be called a waveform. Note that in the radio communication system 1, other radio access schemes (for example, other single-carrier transmission schemes and other multi-carrier transmission schemes) may be used as the UL and DL radio access schemes.

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

In the radio communication system 1, as uplink channels, an uplink shared channel (PUSCH) shared by each user terminal 20, an uplink control channel (PUCCH), a random access channel (Physical Random Access Channel (PRACH)) or the like may be used.

User data, upper layer control information, System Information Block (SIB), etc. are transmitted by the PDSCH. User data, higher layer control information, and the like may be transmitted by PUSCH. Also, a Master Information Block (MIB) may be transmitted by the PBCH.

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

The DCI that schedules PDSCH may be called DL assignment, DL DCI, etc., and the DCI that schedules PUSCH may be called UL grant, UL DCI, etc. PDSCH may be replaced with DL data, and PUSCH may be replaced with UL data.

A control resource set (CControl Resource SET (CORESET)) and a search space (search space) may be used for PDCCH detection. CORESET corresponds to a resource searching for DCI. The search space corresponds to the search area and search method of PDCCH candidates. A CORESET may be associated with one or more search spaces. The UE may monitor CORESETs associated with certain search spaces based on the search space settings.

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

By PUCCH, channel state information (CSI), acknowledgment information (for example, Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), ACK/NACK, etc.) and scheduling request (Scheduling Request ( SR)) may be transmitted. A random access preamble for connection establishment with a cell may be transmitted by the PRACH.

In addition, in the present disclosure, downlink, uplink, etc. may be expressed without adding "link". Also, various channels may be expressed without adding "Physical" to the head.

In the wireless communication system 1, synchronization signals (SS), downlink reference signals (DL-RS), etc. may be transmitted. In the radio communication system 1, the DL-RS includes a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), a demodulation reference signal (DeModulation Reference Signal (DMRS)), Positioning Reference Signal (PRS)), Phase Tracking Reference Signal (PTRS)), etc. may be transmitted.

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

Also, in the radio communication system 1, even if measurement reference signals (SRS), demodulation reference signals (DMRS), etc. are transmitted as uplink reference signals (UL-RS), good. Note that DMRS may also be called a user terminal-specific reference signal (UE-specific reference signal).

(base station)
FIG. 13 is a diagram illustrating an example of the configuration of a base station according to one embodiment. The base station 10 comprises a control section 110 , a transmission/reception section 120 , a transmission/reception antenna 130 and a transmission line interface 140 . One or more of each of the control unit 110, the transmitting/receiving unit 120, the transmitting/receiving antenna 130, and the transmission path interface 140 may be provided.

It should be noted that this example mainly shows the functional blocks of the features of the present embodiment, and it may be assumed that the base station 10 also has other functional blocks necessary for wireless communication. A part of the processing of each unit described below may be omitted.

The control unit 110 controls the base station 10 as a whole. The control unit 110 can be configured from a controller, a control circuit, and the like, which are explained based on common recognition in the technical field according to the present disclosure.

The control unit 110 may control signal generation, scheduling (for example, resource allocation, mapping), and the like. The control unit 110 may control transmission/reception, measurement, etc. using the transmission/reception unit 120 , the transmission/reception antenna 130 and the transmission line interface 140 . The control unit 110 may generate data to be transmitted as a signal, control information, a sequence, etc., and transfer them to the transmission/reception unit 120 . The control unit 110 may perform call processing (setup, release, etc.) of communication channels, state management of the base station 10, management of radio resources, and the like.

The transmitting/receiving section 120 may include a baseband section 121 , a radio frequency (RF) section 122 and a measuring section 123 . The baseband section 121 may include a transmission processing section 1211 and a reception processing section 1212 . The transmitting/receiving unit 120 is configured from a transmitter/receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmitting/receiving circuit, etc., which are explained based on common recognition in the technical field according to the present disclosure. be able to.

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

The transmitting/receiving antenna 130 can be configured from an antenna described based on common recognition in the technical field related to the present disclosure, such as an array antenna.

The transmitting/receiving unit 120 may transmit the above-described downlink channel, synchronization signal, downlink reference signal, and the like. The transmitting/receiving unit 120 may receive the above-described uplink channel, uplink reference signal, and the like.

The transmitting/receiving unit 120 may form at least one of the transmission beam and the reception beam using digital beamforming (eg, precoding), analog beamforming (eg, phase rotation), or the like.

The transmission/reception unit 120 (transmission processing unit 1211) performs Packet Data Convergence Protocol (PDCP) layer processing, Radio Link Control (RLC) layer processing (for example, RLC retransmission control), Medium Access Control (MAC) layer processing (for example, HARQ retransmission control), etc. may be performed to generate a bit string to be transmitted.

The transmission/reception unit 120 (transmission processing unit 1211) performs channel coding (which may include error correction coding), modulation, mapping, filtering, and discrete Fourier transform (DFT) on the bit string to be transmitted. Processing (if necessary), Inverse Fast Fourier Transform (IFFT) processing, precoding, transmission processing such as digital-to-analog conversion may be performed, and the baseband signal may be output.

The transmitting/receiving unit 120 (RF unit 122) may perform modulation to a radio frequency band, filter processing, amplification, and the like on the baseband signal, and may transmit the radio frequency band signal via the transmitting/receiving antenna 130. .

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

The transmission/reception unit 120 (reception processing unit 1212) performs analog-to-digital conversion, Fast Fourier transform (FFT) processing, and Inverse Discrete Fourier transform (IDFT) processing on the acquired baseband signal. )) processing (if necessary), filtering, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing and PDCP layer processing. User data and the like may be acquired.

The transmitting/receiving unit 120 (measuring unit 123) may measure the received signal. For example, the measurement unit 123 may perform Radio Resource Management (RRM) measurement, Channel State Information (CSI) measurement, etc. based on the received signal. The measurement unit 123 measures received power (for example, Reference Signal Received Power (RSRP)), reception quality (for example, Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)) , signal strength (for example, Received Signal Strength Indicator (RSSI)), channel information (for example, CSI), and the like may be measured. The measurement result may be output to control section 110 .

The transmission path interface 140 transmits and receives signals (backhaul signaling) to and from devices included in the core network 30, other base stations 10, etc., and user data (user plane data) for the user terminal 20, control plane data, and the like. Data and the like may be obtained, transmitted, and the like.

The transmitting unit and receiving unit of the base station 10 in the present disclosure may be configured by at least one of the transmitting/receiving unit 120, the transmitting/receiving antenna 130, and the transmission line interface 140.

The transceiver unit 120 may transmit a first parameter for transmission to the first transmission/reception point (TRP) and a second parameter for transmission to the second TRP. The controller 110 may control reception of one transport block over N slots, and N parameters may be applied to the N slots, respectively. The N parameters may include at least one of the first parameter and the second parameter, and N may be an integer of 2 or more.

The transceiver unit 120 may transmit a first parameter for transmission to the first transmission/reception point (TRP) and a second parameter for transmission to the second TRP. Control unit 110 may control the reception of K repetitions of reception of one transport block over N slots. NxK parameters may be applied to the NxK slots in which the K repetitions are transmitted, respectively. The N×K parameters may include the first parameter and the second parameter, N is an integer of 2 or more, and K is an integer of 2 or more.

(user terminal)
FIG. 14 is a diagram illustrating an example of the configuration of a user terminal according to an embodiment; The user terminal 20 includes a control section 210 , a transmission/reception section 220 and a transmission/reception antenna 230 . One or more of each of the control unit 210, the transmitting/receiving unit 220, and the transmitting/receiving antenna 230 may be provided.

It should be noted that this example mainly shows the functional blocks of the features of the present embodiment, and it may be assumed that the user terminal 20 also has other functional blocks necessary for wireless communication. A part of the processing of each unit described below may be omitted.

The control unit 210 controls the user terminal 20 as a whole. The control unit 210 can be configured from a controller, a control circuit, and the like, which are explained based on common recognition in the technical field according to the present disclosure.

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

The transmitting/receiving section 220 may include a baseband section 221 , an RF section 222 and a measurement section 223 . The baseband section 221 may include a transmission processing section 2211 and a reception processing section 2212 . The transmitting/receiving unit 220 can be configured from a transmitter/receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measuring circuit, a transmitting/receiving circuit, etc., which are explained based on common recognition in the technical field according to the present disclosure.

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

The transmitting/receiving antenna 230 can be configured from an antenna described based on common recognition in the technical field related to the present disclosure, such as an array antenna.

The transmitting/receiving unit 220 may receive the above-described downlink channel, synchronization signal, downlink reference signal, and the like. The transmitting/receiving unit 220 may transmit the above-described uplink channel, uplink reference signal, and the like.

The transmitter/receiver 220 may form at least one of the transmission beam and the reception beam using digital beamforming (eg, precoding), analog beamforming (eg, phase rotation), or the like.

The transmitting/receiving unit 220 (transmission processing unit 2211) performs PDCP layer processing, RLC layer processing (eg, RLC retransmission control), MAC layer processing (eg, , HARQ retransmission control) and the like may be performed to generate a bit string to be transmitted.

The transmission/reception unit 220 (transmission processing unit 2211) performs channel coding (which may include error correction coding), modulation, mapping, filtering, DFT processing (if necessary), and IFFT processing on a bit string to be transmitted. , precoding, digital-analog conversion, and other transmission processing may be performed, and the baseband signal may be output.

Whether or not to apply DFT processing may be based on transform precoding settings. Transmitting/receiving unit 220 (transmission processing unit 2211), for a certain channel (for example, PUSCH), if transform precoding is enabled, the above to transmit the channel using the DFT-s-OFDM waveform The DFT process may be performed as the transmission process, or otherwise the DFT process may not be performed as the transmission process.

The transmitting/receiving unit 220 (RF unit 222) may perform modulation to a radio frequency band, filter processing, amplification, and the like on the baseband signal, and may transmit the radio frequency band signal via the transmitting/receiving antenna 230. .

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

The transmission/reception unit 220 (reception processing unit 2212) performs analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filtering, demapping, demodulation, decoding (error correction) on the acquired baseband signal. decoding), MAC layer processing, RLC layer processing, PDCP layer processing, and other reception processing may be applied to acquire user data and the like.

The transmitting/receiving section 220 (measuring section 223) may measure the received signal. For example, the measurement unit 223 may perform RRM measurement, CSI measurement, etc. based on the received signal. The measuring unit 223 may measure received power (eg, RSRP), received quality (eg, RSRQ, SINR, SNR), signal strength (eg, RSSI), channel information (eg, CSI), and the like. The measurement result may be output to control section 210 .

Note that the transmitter and receiver of the user terminal 20 in the present disclosure may be configured by at least one of the transmitter/receiver 220 and the transmitter/receiver antenna 230 .

The transceiver 220 may receive a first parameter for transmission to a first transmission/reception point (TRP) and a second parameter for transmission to a second TRP. The control unit 210 may control transmission of one transport block over N slots and apply N parameters to the N slots respectively. The N parameters may include at least one of the first parameter and the second parameter, and N may be an integer of 2 or more.

The control unit 210 performs a first mapping that applies two different parameters from the first parameter and the second parameter to odd-numbered slots and even-numbered slots of the N slots, and the N Apply two different parameters from the first parameter and the second parameter to the 4i+1-th and 4i+2-th slots of the N slots and to the 4i+2-th and 4i+3-th slots of the N slots. a second mapping that applies two different parameters from the first parameter and the second parameter to the first half slot and the second half slot of the N slots; a third mapping that applies two different parameters from the first parameter and the second parameter; Applying two different parameters from the first parameter and the second parameter to the 4Xj+1st to 4Xj+Xth slots and to the 4Xj+X+1st to 4Xj+2Xth slots of the N slots. and a fourth mapping to perform one mapping. i may be an integer of 0 or more, j may be an integer of 0 or more, and X may be an integer of 1 or more.

The transmitting/receiving unit 220 may receive information indicating one of the first mapping, the second mapping, the third mapping, and the fourth mapping.

The N parameters may be N first parameters or N second parameters.

The transceiver 220 may receive a first parameter for transmission to a first transmission/reception point (TRP) and a second parameter for transmission to a second TRP. The control unit 210 controls the transmission of K repetitions of the transmission of one transport block over N slots, and the N×K repetitions in the N×K slots in which the K repetitions are transmitted. parameters may be applied respectively. The N×K parameters may include the first parameter and the second parameter, N is an integer of 2 or more, and K is an integer of 2 or more.

The control unit 210 performs a first mapping that applies two different parameters from the first parameter and the second parameter to odd-numbered iterations and even-numbered iterations of the K iterations, and the K applying two different parameters from said first parameter and said second parameter to the 4i+1 th and 4i+2 th iterations of the K iterations and to the 4i+2 th and 4i+3 th iterations of the K iterations. and a third mapping that applies two different parameters from the first parameter and the second parameter to the first and second iterations of the K iterations, and the K iterations Applying two different parameters from the first parameter and the second parameter to the 4Xj+1st to 4Xj+Xth iterations and to the 4Xj+X+1st to 4Xj+2Xth iterations of the K iterations. and a fifth mapping that applies two different parameters from said first parameter and said second parameter to the odd and even slots of the N slots in each iteration. , the first parameter and the second A sixth mapping that applies two different parameters from the first parameter and two different parameters from the first parameter and the second parameter in the first half slot and the second half slot of the N slots in each iteration. and to slots 4Xj+1 to 4Xj+X of N slots in each iteration and slots 4Xj+X+1 to 4Xj+2X of N slots in each iteration. , an eighth mapping that applies two different parameters from the first parameter and the second parameter, and the first parameter and the a ninth mapping applying two different parameters from said second parameter, 4i+1 and 4i+2 of said N×K slots, and 4i+2 and 4i+2 of said N×K slots; A tenth mapping applying two different parameters from the first parameter and the second parameter to the 4i+3th slot, and to the first half slot and the second half slot of the N×K slots, the an eleventh mapping applying two different parameters from the first parameter and the second parameter, the 4Xj+1th to 4Xj+Xth slots in the N×K slots, and the N×K slots; and a 12th mapping applying two different parameters from said first parameter and said second parameter to slots from 4Xj+X+1 to 4Xj+2Xth in . i may be an integer of 0 or more, j may be an integer of 0 or more, and X may be an integer of 1 or more.

The transmitting/receiving unit 220 may receive information instructing the one mapping.

The N×K slots are N×K+U consecutive slots excluding U slots determined to be unavailable, and U may be an integer of 0 or more.

(Hardware configuration)
It should be noted that the block diagrams used in the description of the above embodiments show blocks in units of functions. These functional blocks (components) are implemented by any combination of at least one of hardware and software. Also, the method of realizing each functional block is not particularly limited. That is, each functional block may be implemented using one device physically or logically coupled, or directly or indirectly using two or more physically or logically separated devices (e.g. , wired, wireless, etc.) and may be implemented using these multiple devices. A functional block may be implemented by combining software in the one device or the plurality of devices.

where function includes judgment, decision, determination, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, deem , broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc. Not limited. For example, a functional block (component) that performs transmission may be called a transmitting unit, a transmitter, or the like. In either case, as described above, the implementation method is not particularly limited.

For example, a base station, a user terminal, etc. in an embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure. FIG. 15 is a diagram illustrating an example of hardware configurations of a base station and user terminals according to an embodiment. The base station 10 and user terminal 20 described above may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like. .

In the present disclosure, terms such as apparatus, circuit, device, section, and unit can be read interchangeably. The hardware configuration of the base station 10 and the user terminal 20 may be configured to include one or more of each device shown in the figure, or may be configured without some devices.

For example, although only one processor 1001 is illustrated, there may be multiple processors. Also, processing may be performed by one processor, or processing may be performed by two or more processors concurrently, serially, or otherwise. Note that processor 1001 may be implemented by one or more chips.

Each function in the base station 10 and the user terminal 20, for example, by loading predetermined software (program) on hardware such as a processor 1001 and a memory 1002, the processor 1001 performs calculations, communication via the communication device 1004 and at least one of reading and writing data in the memory 1002 and the storage 1003 .

The processor 1001, for example, operates an operating system and controls the entire computer. The processor 1001 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, registers, and the like. For example, at least part of the above-described control unit 110 (210), transmission/reception unit 120 (220), etc. may be realized by the processor 1001. FIG.

Also, the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and executes various processes according to them. As the program, a program that causes a computer to execute at least part of the operations described in the above embodiments is used. For example, the control unit 110 (210) may be implemented by a control program stored in the memory 1002 and running on the processor 1001, and other functional blocks may be similarly implemented.

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

The storage 1003 is a computer-readable recording medium, for example, a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (for example, a compact disk (Compact Disc ROM (CD-ROM), etc.), a digital versatile disk, Blu-ray disc), removable disc, hard disk drive, smart card, flash memory device (e.g., card, stick, key drive), magnetic stripe, database, server, or other suitable storage medium may be configured by Storage 1003 may also be called an auxiliary storage device.

The communication device 1004 is hardware (transmitting/receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also called a network device, a network controller, a network card, a communication module, or the like. The communication device 1004 includes a high-frequency switch, duplexer, filter, frequency synthesizer, etc. in order to realize at least one of frequency division duplex (FDD) and time division duplex (TDD), for example. may be configured to include For example, the transmitting/receiving unit 120 (220), the transmitting/receiving antenna 130 (230), and the like described above may be realized by the communication device 1004. FIG. The transmitter/receiver 120 (220) may be physically or logically separated into a transmitter 120a (220a) and a receiver 120b (220b).

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

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

In addition, the base station 10 and the user terminal 20 include a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), a field programmable gate array (FPGA), etc. It may be configured including hardware, and a part or all of each functional block may be realized using the hardware. For example, processor 1001 may be implemented using at least one of these pieces of hardware.

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

A radio frame may consist of one or more periods (frames) in the time domain. Each of the one or more periods (frames) that make up a radio frame may be called a subframe. Furthermore, a subframe may consist of one or more slots in the time domain. A subframe may be a fixed time length (eg, 1 ms) independent of numerology.

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

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

A slot may contain multiple mini-slots. Each minislot may consist of one or more symbols in the time domain. A minislot may also be referred to as a subslot. A minislot may consist of fewer symbols than a slot. A PDSCH (or PUSCH) transmitted in time units larger than a minislot may be referred to as PDSCH (PUSCH) Mapping Type A. PDSCH (or PUSCH) transmitted using minislots may be referred to as PDSCH (PUSCH) mapping type B.

Radio frames, subframes, slots, minislots and symbols all represent time units when transmitting signals. Radio frames, subframes, slots, minislots and symbols may be referred to by other corresponding designations. Note that time units such as frames, subframes, slots, minislots, and symbols in the present disclosure may be read interchangeably.

For example, one subframe may be called a TTI, a plurality of consecutive subframes may be called a TTI, and one slot or one minislot may be called a TTI. That is, at least one of the subframe and TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (eg, 1-13 symbols), or a period longer than 1 ms may be Note that the unit representing the TTI may be called a slot, mini-slot, or the like instead of a subframe.

Here, TTI refers to, for example, the minimum scheduling time unit in wireless communication. For example, in the LTE system, a base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used by each user terminal) to each user terminal on a TTI basis. Note that the definition of TTI is not limited to this.

A TTI may be a transmission time unit such as a channel-encoded data packet (transport block), code block, or codeword, or may be a processing unit such as scheduling and link adaptation. Note that when a TTI is given, the time interval (for example, the number of symbols) in which transport blocks, code blocks, codewords, etc. are actually mapped may be shorter than the TTI.

When one slot or one minislot is called a TTI, one or more TTIs (that is, one or more slots or one or more minislots) may be the minimum scheduling time unit. Also, the number of slots (the number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.

A TTI having a time length of 1 ms may be called a normal TTI (TTI in 3GPP Rel. 8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, or the like. A TTI that is shorter than a normal TTI may be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a minislot, a subslot, a slot, and the like.

Note that the long TTI (e.g., normal TTI, subframe, etc.) may be replaced with a TTI having a time length exceeding 1 ms, and the short TTI (e.g., shortened TTI, etc.) is less than the TTI length of the long TTI and 1 ms A TTI having the above TTI length may be read instead.

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

Also, an RB may contain one or more symbols in the time domain and may be 1 slot, 1 minislot, 1 subframe or 1 TTI long. One TTI, one subframe, etc. may each be configured with one or more resource blocks.

One or more RBs are Physical Resource Block (PRB), Sub-Carrier Group (SCG), Resource Element Group (REG), PRB pair, RB Also called a pair.

Also, a resource block may be composed of one or more resource elements (Resource Element (RE)). For example, 1 RE may be a radio resource region of 1 subcarrier and 1 symbol.

A Bandwidth Part (BWP) (which may also be called a bandwidth part) represents a subset of contiguous common resource blocks (RBs) for a numerology on a carrier. good too. Here, the common RB may be identified by an RB index based on the common reference point of the carrier. PRBs may be defined in a BWP and numbered within that BWP.

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

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

It should be noted that the structures of radio frames, subframes, slots, minislots, symbols, etc. described above are merely examples. For example, the number of subframes contained in a radio frame, the number of slots per subframe or radio frame, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, the number of Configurations such as the number of subcarriers and the number of symbols in a TTI, symbol length, cyclic prefix (CP) length, etc. can be varied.

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

The names used for parameters and the like in this disclosure are not restrictive names in any respect. Further, the formulas and the like using these parameters may differ from those expressly disclosed in this disclosure. Since the various channels (PUCCH, PDCCH, etc.) and information elements can be identified by any suitable names, the various names assigned to these various channels and information elements are not limiting names in any way. .

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

Also, information, signals, etc. can be output from a higher layer to a lower layer and/or from a lower layer to a higher layer. Information, signals, etc. may be input and output through multiple network nodes.

Input/output information, signals, etc. may be stored in a specific location (for example, memory), or may be managed using a management table. Input and output information, signals, etc. may be overwritten, updated or appended. Output information, signals, etc. may be deleted. Input information, signals, etc. may be transmitted to other devices.

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

The physical layer signaling may also be called Layer 1/Layer 2 (L1/L2) control information (L1/L2 control signal), L1 control information (L1 control signal), and the like. RRC signaling may also be called an RRC message, and may be, for example, an RRC connection setup message, an RRC connection reconfiguration message, or the like. Also, MAC signaling may be notified using, for example, a MAC Control Element (CE).

In addition, notification of predetermined information (for example, notification of “being X”) is not limited to explicit notification, but implicit notification (for example, by not notifying the predetermined information or by providing another information by notice of

The determination may be made by a value (0 or 1) represented by 1 bit, or by a boolean value represented by true or false. , may be performed by numerical comparison (eg, comparison with a predetermined value).

Software, whether referred to as software, firmware, middleware, microcode, hardware description language or otherwise, includes instructions, instruction sets, code, code segments, program code, programs, subprograms, and software modules. , applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, and the like.

In addition, software, instructions, information, etc. may be transmitted and received via a transmission medium. For example, the software uses wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and/or wireless technology (infrared, microwave, etc.) , a server, or other remote source, these wired and/or wireless technologies are included within the definition of transmission media.

The terms "system" and "network" used in this disclosure may be used interchangeably. A “network” may refer to devices (eg, base stations) included in a network.

In the present disclosure, "precoding", "precoder", "weight (precoding weight)", "Quasi-Co-Location (QCL)", "Transmission Configuration Indication state (TCI state)", "spatial "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "number of layers", Terms such as "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angle", "antenna", "antenna element", "panel" are interchangeable. can be used as intended.

In the present disclosure, "base station (BS)", "radio base station", "fixed station", "NodeB", "eNB (eNodeB)", "gNB (gNodeB)", "Access point", "Transmission Point (TP)", "Reception Point (RP)", "Transmission/Reception Point (TRP)", "Panel" , “cell,” “sector,” “cell group,” “carrier,” “component carrier,” etc. may be used interchangeably. A base station may also be referred to by terms such as macrocell, small cell, femtocell, picocell, and the like.

A base station can accommodate one or more (eg, three) cells. When a base station accommodates multiple cells, the overall coverage area of the base station can be partitioned into multiple smaller areas, and each smaller area is assigned to a base station subsystem (e.g., a small indoor base station (Remote Radio)). Head (RRH))) may also provide communication services. The terms "cell" or "sector" refer to part or all of the coverage area of at least one of the base stations and base station subsystems that serve communication within such coverage.

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

Mobile stations include subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless terminals, remote terminals. , a handset, a user agent, a mobile client, a client, or some other suitable term.

At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a wireless communication device, or the like. At least one of the base station and the mobile station may be a device mounted on a moving object, the mobile itself, or the like.

The moving body refers to a movable object, the speed of movement is arbitrary, and it naturally includes cases where the moving body is stationary. Examples of such moving bodies include vehicles, transportation vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, carts, rickshaws, and ships (ships and other watercraft). , airplanes, rockets, satellites, drones, multi-copters, quad-copters, balloons and objects mounted on them. Further, the mobile body may be a mobile body that autonomously travels based on an operation command.

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

FIG. 16 is a diagram showing an example of a vehicle according to one embodiment. The vehicle 40 includes a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a shift lever 45, left and right front wheels 46, left and right rear wheels 47, an axle 48, an electronic control unit 49, various sensors (current sensor 50, revolution sensor 51, air pressure sensor 52, vehicle speed sensor 53, acceleration sensor 54, accelerator pedal sensor 55, brake pedal sensor 56, shift lever sensor 57, and object detection sensor 58), information service unit 59 and communication module 60. Prepare.

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

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

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

The information service unit 59 includes various devices such as car navigation systems, audio systems, speakers, displays, televisions, and radios for providing (outputting) various information such as driving information, traffic information, and entertainment information, and these devices. and one or more ECUs that control The information service unit 59 provides various information/services (for example, multimedia information/multimedia services) to the occupants of the vehicle 40 using information acquired from an external device via the communication module 60 or the like.

The information service unit 59 may include an input device (e.g., keyboard, mouse, microphone, switch, button, sensor, touch panel, etc.) that receives input from the outside, and an output device that outputs to the outside (e.g., display, speaker, LED lamp, touch panel, etc.).

The driving support system unit 64 includes a millimeter wave radar, Light Detection and Ranging (LiDAR), a camera, a positioning locator (e.g., Global Navigation Satellite System (GNSS), etc.), map information (e.g., High Definition (HD)) maps, autonomous vehicle (AV) maps, etc.), gyro systems (e.g., inertial measurement units (IMU), inertial navigation systems (INS), etc.), artificial intelligence ( Artificial intelligence (AI) chips, AI processors, and other devices that provide functions to prevent accidents and reduce the driver's driving load, and one or more devices that control these devices ECU. In addition, the driving support system unit 64 transmits and receives various information via the communication module 60, and realizes a driving support function or an automatic driving function.

The communication module 60 can communicate with the microprocessor 61 and components of the vehicle 40 via the communication port 63 . For example, the communication module 60 communicates with the vehicle 40 through a communication port 63 such as a driving unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a shift lever 45, left and right front wheels 46, left and right rear wheels 47, Data (information) is transmitted and received between the axle 48, the microprocessor 61 and memory (ROM, RAM) 62 in the electronic control unit 49, and various sensors 50-58.

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

The communication module 60 receives signals from the various sensors 50 to 58 described above input to the electronic control unit 49, information obtained based on the signals, and input from the outside (user) obtained via the information service unit 59. may be transmitted to the external device via wireless communication. The electronic control unit 49, the various sensors 50-58, the information service unit 59, etc. may be called an input unit that receives input. For example, the PUSCH transmitted by communication module 60 may include information based on the above inputs.

The communication module 60 receives various information (traffic information, signal information, inter-vehicle information, etc.) transmitted from an external device and displays it on the information service unit 59 provided in the vehicle. The information service unit 59 is an output unit that outputs information (for example, outputs information to devices such as displays and speakers based on the PDSCH received by the communication module 60 (or data/information decoded from the PDSCH)). may be called

Also, the communication module 60 stores various information received from an external device in a memory 62 that can be used by the microprocessor 61 . Based on the information stored in the memory 62, the microprocessor 61 controls the drive unit 41, the steering unit 42, the accelerator pedal 43, the brake pedal 44, the shift lever 45, the left and right front wheels 46, and the left and right rear wheels provided in the vehicle 40. 47, axle 48, and various sensors 50-58 may be controlled.

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

Similarly, user terminals in the present disclosure may be read as base stations. In this case, the base station 10 may have the functions of the user terminal 20 described above.

In the present disclosure, operations that are assumed to be performed by the base station may be performed by its upper node in some cases. In a network that includes one or more network nodes with a base station, various operations performed for communication with a terminal may involve the base station, one or more network nodes other than the base station (e.g., Clearly, this can be done by a Mobility Management Entity (MME), Serving-Gateway (S-GW), etc. (but not limited to these) or a combination thereof.

Each aspect/embodiment described in the present disclosure may be used alone, may be used in combination, or may be used by switching along with execution. Also, the processing procedures, sequences, flowcharts, etc. of each aspect/embodiment described in the present disclosure may be rearranged as long as there is no contradiction. For example, the methods described in this disclosure present elements of the various steps using a sample order, and are not limited to the specific order presented.

Each aspect/embodiment described in this disclosure includes Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system ( 4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG (x is, for example, an integer or a decimal number)), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802 .11 (Wi-Fi®), IEEE 802.16 (WiMAX®), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth®, or any other suitable wireless communication method. It may be applied to a system to be used, a next-generation system extended, modified, created or defined based on these. Also, multiple systems may be applied in combination (for example, a combination of LTE or LTE-A and 5G).

The term "based on" as used in this disclosure does not mean "based only on" unless otherwise specified. In other words, the phrase "based on" means both "based only on" and "based at least on."

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

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

Also, "determining (deciding)" includes receiving (e.g., receiving information), transmitting (e.g., transmitting information), input, output, access ( accessing (e.g., accessing data in memory), etc.

Also, "determining" is considered to be "determining" resolving, selecting, choosing, establishing, comparing, etc. good too. That is, "determining (determining)" may be regarded as "determining (determining)" some action.

Also, "judgment (decision)" may be read as "assuming", "expecting", or "considering".

"Maximum transmit power" described in this disclosure may mean the maximum value of transmit power, may mean the nominal maximum transmit power (the nominal UE maximum transmit power), or may mean the rated maximum transmit power (the rated UE maximum transmit power).

The terms “connected”, “coupled”, or any variation thereof, as used in this disclosure, refer to any connection or coupling, direct or indirect, between two or more elements. and can include the presence of one or more intermediate elements between two elements that are "connected" or "coupled" to each other. Couplings or connections between elements may be physical, logical, or a combination thereof. For example, "connection" may be read as "access".

In this disclosure, when two elements are connected, using one or more wires, cables, printed electrical connections, etc., and as some non-limiting and non-exhaustive examples, radio frequency domain, microwave They can be considered to be “connected” or “coupled” together using the domain, electromagnetic energy having wavelengths in the optical (both visible and invisible) domain, and the like.

In the present disclosure, the term "A and B are different" may mean "A and B are different from each other." The term may also mean that "A and B are different from C". Terms such as "separate," "coupled," etc. may also be interpreted in the same manner as "different."

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

In this disclosure, when articles are added by translation, such as a, an, and the in English, the disclosure may include that nouns following these articles are plural.

Although the invention according to the present disclosure has been described in detail above, it is obvious to those skilled in the art that the invention according to the present disclosure is not limited to the embodiments described in the present disclosure. The invention according to the present disclosure can be implemented as modifications and changes without departing from the spirit and scope of the invention determined based on the description of the claims. Therefore, the description of the present disclosure is for illustrative purposes and does not impose any limitation on the invention according to the present disclosure.

Claims

a receiver for receiving a first parameter for transmission to a first transmit/receive point (TRP) and a second parameter for transmission to a second TRP;
controlling the transmission of K repetitions of the transmission of one transport block over N slots and applying N×K parameters respectively to the N×K slots in which said K repetitions are transmitted; , the N×K parameters include the first parameter and the second parameter, N is an integer of 2 or more, and K is an integer of 2 or more.
The control unit comprises a first mapping that applies two different parameters from the first parameter and the second parameter to odd-numbered iterations and even-numbered iterations of the K iterations, and the K and to the 4i+1 and 4i+2 iterations of the K iterations and to the 4i+2 and 4i+3 iterations of the K iterations, two different parameters from the first parameter and the second parameter. a second mapping, a third mapping applying two different parameters from the first parameter and the second parameter to the first and second iterations of the K iterations, and the K iterations. and to the 4Xj+X+1 to 4Xj+2X iterations of the K iterations, two different parameters from the first parameter and the second parameter. a fourth mapping and a fifth mapping that applies two different parameters from the first parameter and the second parameter to the odd and even slots of the N slots in each iteration; The first parameter and the second parameter in the 4i+1-th and 4i+2-th slots of the N slots in each iteration and the 4i+2-th and 4i+3-th slots of the N slots in each iteration. a sixth mapping applying two different parameters from and applying two different parameters from said first parameter and said second parameter to the first and second slots of N slots in each iteration; applying a seventh mapping to slots 4Xj+1 through 4Xj+X of N slots in each iteration and slots 4Xj+X+1 through 4Xj+2X of N slots in each iteration, an eighth mapping that applies two different parameters from the first parameter and the second parameter, and the first parameter and the a ninth mapping applying two different parameters from the second parameter, the 4i+1 and 4i+2 of the N×K slots and the 4i+2 and 4i+3 of the N×K slots; 10th mapping applying two different parameters from the first parameter and the second parameter to the 10th slot and the 10th mapping applying two different parameters from the first parameter and the second parameter to the first and second slots of the N×K slots an eleventh mapping applying one parameter and two different parameters from the second parameter, the 4Xj+1th to 4Xj+Xth slots of the N×K slots, and the N×K slots of and a twelfth mapping that applies two different parameters from the first parameter and the second parameter to the 4Xj + X + 1st to 4Xj + 2Xth slots of , i is an integer greater than or equal to 0 , j is an integer greater than or equal to 0, and X is an integer greater than or equal to 1.
The terminal according to claim 2, wherein the receiving unit receives information indicating the one mapping.
1 to claim, wherein the N×K slots are N×K+U contiguous slots excluding U slots determined to be unavailable, where U is an integer greater than or equal to 0. Item 4. A terminal according to any one of items 3.
receiving a first parameter for transmission to a first transmit/receive point (TRP) and a second parameter for transmission to a second TRP;
controlling K repetitions of the transmission of one transport block over N slots, applying N×K parameters respectively to the N×K slots in which the K repetitions are transmitted; N×K parameters include the first parameter and the second parameter, N is an integer of 2 or more, and K is an integer of 2 or more.
a transmitter for transmitting a first parameter for transmission to a first transmit/receive point (TRP) and a second parameter for transmission to a second TRP;
Controlling the reception of K repetitions of the reception of one transport block over N slots, the N×K parameters being applied respectively to the N×K slots in which said K repetitions are transmitted. , the N×K parameters include the first parameter and the second parameter, N is an integer of 2 or more, and K is an integer of 2 or more.