WO2021171566A1 - 端末、無線通信方法及び基地局 - Google Patents
端末、無線通信方法及び基地局 Download PDFInfo
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- WO2021171566A1 WO2021171566A1 PCT/JP2020/008351 JP2020008351W WO2021171566A1 WO 2021171566 A1 WO2021171566 A1 WO 2021171566A1 JP 2020008351 W JP2020008351 W JP 2020008351W WO 2021171566 A1 WO2021171566 A1 WO 2021171566A1
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- pusch
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
Definitions
- This disclosure relates to terminals, wireless communication methods and base stations in next-generation mobile communication systems.
- LTE Long Term Evolution
- 3GPP Rel.10-14 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 Long Term Evolution
- 5G 5th generation mobile communication system
- 5G + plus
- NR New Radio
- 3GPP Rel.15 3GPP Rel.15 or later, etc.
- the repeated transmission to the UL data channel (for example, the uplink shared channel (Physical Uplink Shared Channel (PUSCH))) is supported.
- the UE controls to transmit the PUSCH over a plurality of slots (for example, K consecutive slots) based on the repetition factor K set from the network (for example, a base station). That is, in the case of repeated transmission, each PUSCH is transmitted in a different slot (for example, in slot units).
- each PUSCH is transmitted in units shorter than the slots (for example, subslot units and minislot units).
- TRP Transmission / Reception Point
- one of the purposes of the present disclosure is to provide a terminal, a wireless communication method, and a base station capable of appropriately controlling PUSCH repetitive transmission.
- the terminal uses at least one of Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, and downlink control information (DCI), and has a plurality of transmission / reception points.
- RRC Radio Resource Control
- MAC Medium Access Control
- DCI downlink control information
- a control unit that determines spatial relationship information for the uplink shared channel (PUSCH), and a transmission unit that repeatedly transmits the PUSCH using a spatial domain transmission filter based on the spatial relationship information.
- RRC Radio Resource Control
- MAC Medium Access Control
- DCI downlink control information
- PUSCH repetitive transmission can be appropriately controlled even when multi-TRP is applied.
- FIGS. 1A and 1B are diagrams showing an example of repeated transmission of PUSCH.
- 2A and 2B are diagrams showing an example of an invalid symbol pattern.
- 3A and 3B are diagrams showing an example of nominal repetitions and actual repetitions.
- FIG. 4 is a diagram showing an example of repeated transmission of PUSCH in multi-TRP.
- 5A-5D is a diagram showing an example of notification of spatial relational information according to the first embodiment.
- 6A-6C is a diagram showing an example of notification of spatial relational information according to the second embodiment.
- 7A-7C is a diagram showing an example of notification of spatial relational information according to the third embodiment.
- 8A-8C is a diagram showing an example of notification of spatial relationship information according to the fourth embodiment.
- FIG. 9A-9C is a diagram showing an example of notification of spatial relationship information according to the fifth embodiment.
- 10A-10C is a diagram showing an example of notification of spatial relational information according to the sixth embodiment.
- FIG. 11A-11C is a diagram showing an example of notification of spatial relationship information according to the seventh embodiment.
- FIG. 12 is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment.
- FIG. 13 is a diagram showing an example of the configuration of the base station according to the embodiment.
- FIG. 14 is a diagram showing an example of the configuration of the user terminal according to the embodiment.
- FIG. 15 is a diagram showing an example of the hardware configuration of the base station and the user terminal according to the embodiment.
- repeated transmission is supported in data transmission.
- a base station network (NW), gNB) repeatedly transmits DL data (for example, a downlink shared channel (PDSCH)) a predetermined number of times.
- DL data for example, a downlink shared channel (PDSCH)
- UL data for example, an uplink shared channel (PUSCH)
- FIG. 1A is a diagram showing an example of repeated transmission of PUSCH.
- FIG. 1A shows an example in which a single DCI schedules a predetermined number of repeated PUSCHs. The number of repetitions is also referred to as a repetition factor K or an aggregation factor K.
- the repetition coefficient K 4, but the value of K is not limited to this.
- the nth repetition is also called an nth transmission opportunity or the like, and may be identified by the repetition index k (0 ⁇ k ⁇ K-1).
- FIG. 1A shows repeated transmission of a PUSCH dynamically scheduled by DCI (for example, a dynamic grant-based PUSCH), it may be applied to repeated transmission of a set grant-based PUSCH.
- the UE receives information indicating the repetition coefficient K (for example, aggregationFactorUL or aggregationFactorDL) quasi-statically by upper layer signaling.
- the upper layer signaling may be, for example, any one of RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, broadcast information, or a combination thereof.
- MAC CE Control Element
- MAC PDU Protocol Data Unit
- the broadcast information may be, for example, a master information block (MIB: Master Information Block), a system information block (SIB: System Information Block), a minimum system information (RMSI: Remaining Minimum System Information), or the like.
- MIB Master Information Block
- SIB System Information Block
- RMSI Remaining Minimum System Information
- the UE receives at least one PDSCH reception process (eg, reception, demapping, demodulation, decoding) in K consecutive slots based on at least one of the following field values in the DCI (or the information indicated by that field value): 1), or control the PUSCH transmission process (eg, at least one of transmission, mapping, modulation, sign): -Assignment of time domain resources (eg start symbol, number of symbols in each slot, etc.), -Allocation of frequency domain resources (for example, a predetermined number of resource blocks (RB: Resource Block), a predetermined number of resource block groups (RBG: Resource Block Group)), -Modulation and Coding Scheme (MCS) index, • PUSCH demodulation reference signal (DMRS) configuration, -PUSCH spatial relation info (spatial relation info) or transmission configuration instruction (TCI: Transmission Configuration Indication or Transmission Configuration Indicator) state (TCI state (TCI-state)).
- DMRS PUSCH demodulation reference signal
- FIG. 1A shows a case where the PUSCH in each slot is assigned to a predetermined number of symbols from the beginning of the slot.
- the same symbol allocation between slots may be determined as described in Time Domain Resource Allocation above.
- the UE is a symbol in each slot based on a start symbol S and a number of symbols L (eg, Start and Length Indicator (SLIV)) determined based on the value m of a predetermined field (eg, TDRA field) in the DCI.
- L Start and Length Indicator
- the allocation may be decided.
- the UE may determine the first slot based on the K2 information determined based on the value m of a predetermined field of DCI (for example, the TDRA field).
- the redundant version (Redundancy Version (RV)) applied to the TB based on the same data may be the same, or at least a part thereof may be different. ..
- the RV applied to the TB in the nth slot (transmission opportunity, repeat) may be determined based on the value of a predetermined field (eg, RV field) in the DCI.
- the resources allocated in the K consecutive slots are the vertical link communication direction instruction information for TDD control (for example, "TDD-UL-DL-ConfigCommon" and "TDD-UL-DL-ConfigDedicated” of RRC IE) and If at least one symbol has a different communication direction from the UL, DL, or Flexible of each slot specified by at least one of the slot format identifiers (Slot format indicators) of DCI (for example, DCI format 2_0), the symbol is used.
- the resources of the included slot may not be transmitted (or received).
- PUSCH is repeatedly transmitted over a plurality of slots (in slot units). From 16 onwards, it is assumed that PUSCH is repeatedly transmitted in units shorter than slots (for example, subslot units, minislot units, or predetermined number of symbols units) (see FIG. 1B).
- the repetition coefficient K 4, but the value of K is not limited to this.
- the nth repetition is also called an nth transmission opportunity or the like, and may be identified by the repetition index k (0 ⁇ k ⁇ K-1).
- FIG. 1B shows the repeated transmission of the PUSCH dynamically scheduled by DCI (for example, the dynamic grant-based PUSCH), it may be applied to the repeated transmission of the set grant-based PUSCH.
- the UE transmits PUSCH in a predetermined slot (for example, StartSymbol and length) based on the start symbol S and the number of symbols L (for example, StartSymbol and length) determined based on the value m of the predetermined field (for example, TDRA field) in the DCI of the PUSCH.
- the UE may determine a predetermined slot based on Ks information determined based on the value m of a predetermined field (for example, TDRA field) of DCI.
- the UE may dynamically receive information indicating the repetition coefficient K (for example, numberofrepetitions) by downlink control information.
- the repetition factor may be determined based on the value m of a predetermined field (eg, TDRA field) in the DCI. For example, a table in which the correspondence between the bit value notified by DCI and the repetition coefficient K, the start symbol S, and the number of symbols L may be defined may be supported.
- the slot-based repetitive transmission shown in FIG. 1A is called repetitive transmission type A (for example, PUSCH repetition Type A), and the subslot-based repetitive transmission shown in FIG. 1B is called repetitive transmission type B (for example, PUSCH repetition Type B). ) May be called.
- the UE may be set to apply at least one of the repetitive transmission type A and the repetitive transmission type B.
- the base station may notify the UE of the iterative transmission type applied by the UE by higher layer signaling (for example, PUSCHRepTypeIndicator).
- Either one of the repetitive transmission type A and the repetitive transmission type B may be set in the UE for each DCI format for which the PUSCH is scheduled.
- a first DCI format eg, DCI format 0_1
- higher layer signaling eg, PUSCHRepTypeIndicator-AorDCIFormat0_1
- repetitive transmission type B eg, PUSCH-RepTypeB
- the UE is the first DCI.
- Repeated transmission type B is applied to PUSCH repeated transmissions scheduled in the format.
- the UE applies the UE repeatedly send type A for PUSCH repeats scheduled in the first DCI format. do.
- the repetitive transmission type B When the repetitive transmission type B is applied to the PUSCH transmission, it is also considered to notify the UE of information about a symbol (or symbol pattern) that cannot be used for the PUSCH transmission.
- the symbol pattern that cannot be used for PUSCH transmission may be referred to as an invalid symbol pattern, an invalid symbol pattern, an invalid symbol pattern, or the like.
- the DCI may be in a predetermined DCI format (eg, at least one of the DCI formats 0_1 and 0_2).
- the UE is notified of information about an invalid symbol pattern that cannot be used for PUSCH transmission by using the first upper layer parameter. Further, the UE may be notified by using DCI whether or not the information regarding the invalid symbol pattern is applied. In this case, a bit field (a field for notifying whether or not the invalid symbol pattern is applied) for instructing whether or not the information regarding the invalid symbol pattern is applied may be set in DCI.
- the UE may be notified whether or not the notification field (or additional bit) in the DCI is set by using the second upper layer parameter. That is, when the UE is notified of the information regarding the invalid symbol pattern by the first upper layer parameter, the UE may decide whether or not to apply the information regarding the invalid symbol pattern based on the second upper layer parameter and DCI. ..
- the UE may control the transmission of PUSCH without considering the invalid symbol pattern.
- the UE may determine whether or not the invalid symbol pattern is applied based on the second upper layer parameter and DCI. For example, when the second upper layer parameter instructs DCI to add an additional bit (or a predetermined field) indicating whether or not to apply the invalid symbol pattern, the UE is instructed to add an invalid symbol pattern based on the predetermined field. Whether or not it is applied may be determined.
- the first upper layer parameter may be information that notifies a symbol pattern that is invalid for PUSCH transmission, and for example, a bitmap format may be applied (see FIG. 2A).
- FIG. 2A is a diagram showing an example of a case where the invalid symbol pattern is defined by a bitmap (1-D bitmap) for the time domain.
- the UE may determine the resources available for PUSCH transmission in one or more frequency bandwidths (eg, BWP) based on the information about the invalid symbol pattern (see FIG. 2B).
- BWP frequency bandwidths
- FIG. 3A shows an example of applying the repeat transmission type B when the repeat coefficient (K) is 4 and the PUSCH length (L) is 4.
- PUSCH transmission may be performed using a symbol excluding the DL symbol (see FIG. 3B).
- PUSCH transmission may be performed using a symbol other than the DL symbol portion.
- the PUSCH may be divided (or segmented).
- repeated transmission before considering the DL symbol, invalid symbol, or slot boundary may be called nominal repetitions.
- Repeated transmissions that take into account DL symbols, invalid symbols, or slot boundaries may be referred to as actual repetitions.
- the UE is in the information (SRS configuration information, eg, “SRS-Config” of the RRC control element) used to transmit the measurement reference signal (eg, Sounding Reference Signal (SRS)). Parameters) may be received.
- SRS configuration information eg, “SRS-Config” of the RRC control element
- SRS Sounding Reference Signal
- the UE has information about one or more SRS resource sets (SRS resource set information, for example, "SRS-ResourceSet” of RRC control element) and information about one or more SRS resources (SRS resource).
- SRS resource set information for example, "SRS-ResourceSet” of RRC control element
- SRS resource information about one or more SRS resources
- Information for example, at least one of the RRC control elements "SRS-Resource" may be received.
- One SRS resource set may be associated with a predetermined number of SRS resources (a predetermined number of SRS resources may be grouped).
- Each SRS resource may be specified by an SRS resource identifier (SRS Resource Indicator (SRI)) or an SRS resource ID (Identifier).
- SRI SRS Resource Indicator
- 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, an SRS resource type (for example, periodic SRS (Periodic SRS), semi-persistent Stent). Information on SRS (Semi-Persistent SRS), aperiodic CSI (Aperiodic SRS)), and usage of SRS may be included.
- SRS-ResourceSetId SRS resource set ID
- SRS-ResourceId list of SRS resource IDs
- SRS resource type for example, periodic SRS (Periodic SRS), semi-persistent Stent).
- Information on SRS Semi-Persistent SRS
- aperiodic CSI Aperiodic SRS
- the SRS resource types are periodic SRS (Periodic SRS (P-SRS)), semi-persistent SRS (Semi-Persistent SRS (SP-SRS)), and aperiodic CSI (Aperiodic SRS (A-SRS)). May indicate either.
- the UE may transmit P-SRS and SP-SRS periodically (or periodically after activation), and may transmit A-SRS based on DCI's SRS request.
- RRC parameter "usage", L1 (Layer-1) parameter "SRS-SetUse" are, for example, beam management, codebook (CB), noncodebook (noncodebook (). NCB)), antenna switching, etc. may be used.
- SRS for codebook or non-codebook use may be used to determine a precoder for codebook-based or non-codebook-based PUSCH transmission based on SRI.
- the UE is for PUSCH transmission based on SRI, transmission rank indicator (Transmitted Rank Indicator (TRI)) and transmission precoding matrix indicator (Transmitted Precoding Matrix Indicator (TPMI)).
- Precoder may be determined.
- the UE may determine a precoder for PUSCH transmission based on SRI.
- the SRS resource information includes SRS resource ID (SRS-ResourceId), number of SRS ports, SRS port number, transmission comb, SRS resource mapping (for example, time and / or frequency resource position, resource offset, resource cycle, number of repetitions, SRS).
- SRS resource ID SRS-ResourceId
- number of SRS ports SRS port number
- transmission comb SRS resource mapping (for example, time and / or frequency resource position, resource offset, resource cycle, number of repetitions, SRS).
- SRS resource mapping for example, time and / or frequency resource position, resource offset, resource cycle, number of repetitions, SRS.
- the number of symbols, SRS bandwidth, etc. may be included.
- the SRS spatial relationship information may indicate the spatial relationship information between a predetermined reference signal and the SRS.
- the predetermined reference signal includes a synchronization signal / broadcast channel (Synchronization Signal / Physical Broadcast Channel (SS / PBCH)) block, a channel state information reference signal (Channel State Information Reference Signal (CSI-RS)), and an SRS (for example, another). It may be at least one of SRS).
- the SS / PBCH block may be referred to as a synchronous signal block (SSB).
- the SRS spatial relationship information may include at least one of the SSB index, the CSI-RS resource ID, and the SRS resource ID as the index of the predetermined reference signal.
- the SSB index, SSB resource ID, and SSB Resource Indicator may be read as each other. Further, the CSI-RS index, the CSI-RS resource ID and the CSI-RS Resource Indicator (CRI) may be read as each other. Further, the SRS index, SRS resource ID and SRI may be read as each other.
- the SRS spatial relationship information may include a serving cell index, a BWP index (BWP ID), and the like corresponding to the above-mentioned predetermined reference signal.
- the UE uses a spatial domain filter (spatial domain reception filter) for receiving the SSB or CSI-RS.
- the SRS resource may be transmitted using the same spatial domain filter (spatial domain transmission filter).
- the UE may assume that the SSB or CSI-RS UE receive beam and the SRS UE transmit beam are the same.
- the UE When the UE sets spatial relationship information about another SRS (reference SRS) and the SRS (target SRS) for one SRS (target SRS) resource, the UE is a spatial domain filter for transmitting the reference SRS.
- the target SRS resource may be transmitted using the same spatial domain filter (spatial domain transmission filter) as the (spatial domain transmission 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 the PUSCH scheduled by the DCI based on the value of a predetermined field (eg, the 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 resource (for example, “spatialRelationInfo” of the RRC information element) determined based on the value of the predetermined field (for example, SRI) for PUSCH transmission.
- a predetermined field eg, the SRS Resource Identifier (SRI) field
- SRI SRS Resource Identifier
- the UE When using codebook-based transmission for PUSCH, the UE sets two SRS resources per SRS resource set by RRC and directs one of the two SRS resources by DCI (1 bit SRI field). You may. When using non-codebook-based transmission for PUSCH, the UE sets four SRS resources per SRS resource set by RRC and indicates one of the four SRS resources by DCI (2-bit SRI field). May be done.
- Multi TRP In NR, it is considered that one or more transmission / reception points (Transmission / Reception Point (TRP)) (multi-TRP) perform DL transmission to the UE using one or more panels (multi-panel). Has been done. It is also being considered that the UE transmits UL to one or more TRPs (see FIG. 4).
- TRP Transmission / Reception Point
- the plurality of TRPs may correspond to the same cell identifier (cell Identifier (ID)) or may correspond to different cell IDs.
- the cell ID may be a physical cell ID or a virtual cell ID.
- the present inventors have conceived a control method for PUSCH repetitive transmission.
- the UE can perform PUSCH repetitive transmissions for multi-TRP using different beams for each repeating unit (eg, segment, subslot).
- the panel Uplink (UL) transmission entity, TRP, spatial relationship, control resource set (COntrol REsource SET (CORESET)), PDSCH, code word, base station, predetermined antenna port (for example, reference for demodulation).
- Signal DeModulation Reference Signal (DMRS) port
- predetermined antenna port group for example, DMRS port group
- predetermined group for example, Code Division Multiplexing (CDM) group, predetermined reference signal group, CORESET group
- CORESET pool may be read as each other.
- the panel Identifier (ID) and the panel may be read as each other.
- TRP ID and TRP may be read as each other.
- index, ID, indicator, and resource ID may be read as each other.
- a / B may mean "at least one of A and B”.
- lists, groups, clusters, subsets, etc. may be read interchangeably.
- spatial relation information, SRI, SRS resource, precoder and the like may be read as each other.
- PUSCHs over a plurality of TRPs may be read as repetitive PUSCHs over a plurality of TRPs, simply repetitive PUSCHs, repetitive transmissions, and the like.
- the SRS resource set in the following embodiments may be read by the SRS resource set of the codebook or non-codebook, or may be read by the SRS resource set of other uses.
- the UE is notified of spatial relational information for PUSCH across multiple TRPs by a combination of RRC signaling, MAC CE and DCI.
- FIG. 5A-5D is a diagram showing an example of notification of spatial relationship information according to the first embodiment. Hereinafter, description will be made with reference to FIGS. 5A-5D.
- the UE may set a predetermined number (for example, M) of SRS resource lists in relation to one SRS resource set by RRC signaling.
- M may be, for example, 8, 64, or the like, or may be larger than 64.
- One or more SRS resource lists may be set in the SRS resource set for a particular application (eg, codebook or non-codebook).
- a maximum of R SRS resources may be associated with one SRS resource list.
- the R may correspond to the maximum number of TRPs for PUSCH.
- FIG. 5A shows an example in which a plurality of SRS resource lists (SRS resource lists # 0, # 1, ...) Are set in relation to the SRS resource set.
- the SRS resource list # 0 is associated with the SRS resource # 0.
- the SRS resource list # 1 is associated with ⁇ SRS resource # 0, # 1 ⁇ .
- one or a plurality of SRS resource lists are further activated by using MAC CE.
- the maximum number of active SRS resource lists may be limited to a predetermined number (eg, 2, 4, 8, etc.).
- FIG. 5B is a diagram showing an example of the SRS resource list activation / deactivation MAC CE according to the first embodiment.
- FIG. 5B shows a bit string constituting the MAC CE.
- the MAC CE may include information such as a cell ID ("Serving Cell ID” field) (of the SRS resource set) and a BWP ID ("BWP ID” field) (of the SRS resource set) to be applied.
- the "R" field may mean reserved bits for future expansion. The same applies to the drawings of other MAC CEs thereafter unless otherwise specified.
- the UE activates the SRS resource list # i if the field of a S i indicates 1.
- the UE deactivates the SRS resource list # i if the field of a S i indicates 0.
- the UE may be instructed to use one or more SRS resource lists among the activated SRS resource lists using the DCI field.
- the field may be an existing DCI field (for example, an SRI field), a new DCI field (for example, an SRS resource list field for repeated transmission), or a plurality of fields. It may be expressed by a combination of.
- a UE configured for codebook-based PUSCH transmission or configured for single-layer non-codebook-based PUSCH transmission may assume that one SRS resource list is indicated for PUSCH transmission across multiple TRPs. good.
- FIG. 5C is a diagram showing an example of the correspondence of DCI fields for designating one SRS resource list according to the first embodiment.
- the value of a field contained in DCI ("Bit field mapped to index") and the corresponding activated SRS resource list are shown.
- the number of bits in the field may be determined based on the maximum number of active SRS resource lists.
- SRS resource list #i activated by the MAC CE described above corresponds to the value of each field in ascending or descending order. That is, when the activated SRS resource list ID and the value of the field are arranged in ascending or descending order, it may be assumed that there is a one-to-one correspondence from the smallest.
- the first SRS resource list in FIG. 5C is the SRS resource list # 0
- the second SRS resource list is the SRS resource list.
- An active SRS resource list corresponding to the value of each field may be identified, such as # 1, ..., Etc.
- FIG. 5D is a diagram showing an example of a DCI field for designating a plurality of SRS resource lists according to the first embodiment.
- the DCI field includes a bit field for layer # 0 ("Bit field for layer # 0"), a bit field for layer # 1 ("Bit field for layer # 1"), and the like. ing.
- the UE may determine the SRS resource list corresponding to the value of each bit field in the same manner as described in FIG. 5C.
- the SRS resource list specified by DCI can be dynamically changed by using MAC CE, and PUSCH repeated transmission can be performed. For example, control using different SRS resources can be performed for each PUSCH resource and for each PUSCH iteration.
- the UE is notified of spatial relational information for PUSCH across multiple TRPs by a combination of RRC signaling and DCI.
- FIGS. 6A-6C is a diagram showing an example of notification of spatial relational information according to the second embodiment.
- description will be made with reference to FIGS. 6A-6C.
- the points not particularly mentioned may be the same as those in the first embodiment.
- the UE may set a predetermined number (for example, M) of SRS resource lists in relation to one SRS resource set by RRC signaling.
- FIG. 6A is the same as FIG. 5A.
- one or more SRS resource lists among the SRS resource lists set by the RRC may be specified to the UE by using the DCI field.
- FIG. 6B is a diagram showing an example of the correspondence of DCI fields for designating one SRS resource list according to the second embodiment.
- the value of a certain field included in DCI ("Bit field mapped to index") and the SRS resource list set by the corresponding RRC are shown.
- the number of bits in the field may be determined based on the maximum number of SRS resource lists set.
- FIG. 6C is a diagram showing an example of a DCI field for designating a plurality of SRS resource lists according to the second embodiment. This example is similar to FIG. 5D, except that each bit field corresponds to FIG. 6B.
- PUSCH repetitive transmission can be appropriately performed based on the SRS resource list specified by DCI among the SRS resource list set by RRC.
- the UE is notified of spatial relational information for PUSCH across multiple TRPs by a combination of RRC signaling and MAC CE.
- FIG. 7A-7C is a diagram showing an example of notification of spatial relationship information according to the third embodiment.
- description will be made with reference to FIGS. 7A-7C.
- the points not particularly mentioned may be the same as those in the first embodiment.
- the UE may set a predetermined number (for example, M) of SRS resource lists by RRC signaling.
- M a predetermined number of SRS resource lists by RRC signaling.
- FIG. 7A is the same as FIG. 5A.
- one or a plurality of SRS resource lists are further activated (or instructed) by using MAC CE.
- FIG. 7B is a diagram showing an example of the SRS resource list activation / deactivation MAC CE according to the second embodiment.
- FIG. 7B is the same as FIG. 5B.
- the MAC CE of FIG. 7B may be notified to a UE for which codebook-based PUSCH transmission is set or for which single-layer non-codebook-based PUSCH transmission is set.
- the UE may assume that only one of the "Si" fields of the MAC CE indicates 1.
- FIG. 7C is a diagram showing another example of the SRS resource list activation / deactivation MAC CE according to the second embodiment.
- FIG. 7C is similar to FIG. 7B, except that the SRS resource list ID for each layer can be specified.
- the first layer ID (“1 st Layer ID”) field may indicate a layer ID (eg 0-3) and the first SRS resource list ID ("1 st SRS resource list ID"). The field may be used to identify the SRS resource list corresponding to the layer of the first layer ID.
- each layer ID field is shown with 2 bits and each SRS resource list ID field is shown with 6 bits, but the number of bits is not limited to these.
- the MAC CE of FIG. 7C may be notified to the UE in which the non-codebook-based PUSCH transmission of a plurality of layers is set.
- the spatial relationship information for PUSCH is determined based on the SRS resource list activated by MAC CE.
- the UE may determine the spatial relationship information based on, for example, a plurality of SRS resource lists corresponding to the spatial relationship information for each layer specified by the MAC CE of FIG. 7C. Therefore, the spatial relationship information does not have to be identified by DCI, and in this case, the SRI field of DCI may be reduced, or it may be used for other purposes.
- PUSCH repeated transmission can be appropriately performed based on the SRS resource list specified by MAC CE.
- the UE is notified of spatial relational information for PUSCH across multiple TRPs by a combination of MAC CE and DCI.
- FIGS. 8A-8C is a diagram showing an example of notification of spatial relationship information according to the fourth embodiment.
- description will be made with reference to FIGS. 8A-8C.
- the points not particularly mentioned may be the same as those in the first embodiment.
- FIG. 8A shows an example in which a plurality of SRS resources (SRS resources # 0, # 1, ...) Are set in relation to the SRS resource set.
- the UE may activate (or instruct) a predetermined number (eg, N) of SRI sequences by MAC CE.
- the SRI sequence may be a combination (set) of SRS resources from 1 to a maximum of R, and may be called an SRI set, an SRI group, or the like.
- the R may correspond to the maximum number of TRPs for PUSCH.
- MAC CE As the MAC CE, a MAC CE in which the SRI sequence ID is associated with the MAC CE described in the fifth embodiment below may be used.
- one or more SRI sequences among the activated SRI sequences may be instructed to the UE by using the field of DCI.
- FIG. 8B is a diagram showing an example of the correspondence of DCI fields for designating one SRI sequence according to the fourth embodiment.
- the value of a field contained in DCI ("Bit field mapped to index") and the corresponding activated SRI sequence are shown.
- the number of bits in the field may be determined based on the maximum number of SRI sequences that can be activated.
- the first SRI sequence may include SRS resource # 0.
- the second SRI sequence may include ⁇ SRS resources # 0, # 1 ⁇ .
- FIG. 8C is a diagram showing an example of a DCI field for designating a plurality of SRI sequences according to the second embodiment. This example is similar to FIG. 5D, except that each bit field corresponds to FIG. 8B.
- the UE may assume that the DCI field for specifying the SRI sequence is 0 bit.
- PUSCH repetitive transmission can be appropriately performed based on the SRI sequence specified by DCI.
- the UE is notified by MAC CE of spatial relationship information for PUSCH across multiple TRPs.
- FIGS. 9A-9C is a diagram showing an example of notification of spatial relationship information according to the fifth embodiment.
- description will be made with reference to FIGS. 9A-9C.
- the points not particularly mentioned may be the same as those in the fourth embodiment.
- FIG. 9A is the same as FIG. 8A.
- the UE may activate (or direct) one or a predetermined number (eg, N) of SRI sequences by MAC CE.
- FIG. 9B is a diagram showing an example of an SRI sequence (or SRS resource) activation / deactivation MAC CE according to a fifth embodiment.
- FIG. 9B is the same as FIG. 5B, except that the “Si ” field indicates an SRS resource rather than an SRS resource list. The UE may assume that one or more of the "S i" fields indicate 1.
- the UE may determine that the SRI sequence contains ⁇ SRS resources # 0, # 1 ⁇ .
- FIG. 9C is a diagram showing another example of the SRI sequence (or SRS resource) activation / deactivation MAC CE according to the fifth embodiment.
- FIG. 9C is similar to FIG. 7C, but instead of the SRS resource list ID field, a field “ Sk, i ” indicating activation of the SRS resource # i corresponding to the layer of the kth layer ID field is included. The point is different.
- the UE receives the SRI sequence corresponding to the first layer ID. It may be determined that the SRI sequence including ⁇ SRS resources # 0, # 1 ⁇ and corresponding to the second layer ID includes ⁇ SRS resources # 1, # 2 ⁇ .
- PUSCH repetitive transmission can be appropriately performed based on the SRI sequence specified by MAC CE.
- the UE is notified by DCI of spatial relationship information for PUSCH across multiple TRPs.
- FIGS. 10A-10C is a diagram showing an example of notification of spatial relationship information according to the sixth embodiment.
- description will be made with reference to FIGS. 10A-10C.
- the points not particularly mentioned may be the same as those in the fourth embodiment.
- FIG. 10A is the same as FIG. 8A.
- the UE may be instructed by the field of DCI to have one or a predetermined number (eg, N) of SRI sequences.
- FIG. 10B is a diagram showing an example of the correspondence of DCI fields for designating one SRI sequence according to the sixth embodiment.
- the value of a certain field (“Bit field mapped to index") included in DCI and the corresponding SRI sequence are shown.
- the first SRI sequence may include SRS resource # 0.
- the second SRI sequence may include ⁇ SRS resources # 0, # 1 ⁇ .
- Each SRI sequence may be pre-defined by specifications.
- FIG. 10C is a diagram showing an example of a DCI field for designating a plurality of SRI sequences according to the sixth embodiment. This example is similar to FIG. 5D, except that each bit field corresponds to FIG. 10B.
- PUSCH repetitive transmission can be appropriately performed based on the SRI sequence specified by DCI.
- the TCI state may be used as (or instead) spatial relational information for PUSCH across multiple TRPs.
- the TCI state may correspond to at least one of a downlink TCI state (DL TCI state), an uplink TCI state (UL TCI state), and a unified TCI state (unified TCI state).
- the UL TCI state may be read as spatial relation information (spatialrelationinfo).
- the unified TCI state may mean a TCI state commonly used in both DL and UL.
- the UE replaces the spatial relationship information, the SRS resource, the SRI, etc. in at least one of the above-mentioned first to sixth embodiments with the TCI state information, the TCI state, the TCI state ID, and the like, respectively.
- Spatial relational information for PUSCH over a plurality of TRPs may be determined according to the contents.
- the TCI state may be set separately from the SRS resource set setting, the SRS resource setting, and the like (for example, it may be set by the PUSCH setting information (PUSCH-Config)).
- the UE may set a list of TCI states (eg, UL TCI states) for PUSCH by RRC signaling.
- TCI states eg, UL TCI states
- the UE may activate (or instruct) a predetermined number (eg, N) of TCI status sets by MAC CE.
- the TCI state set may be a combination (set) of TCI states from 1 to a maximum of R, and may be called a TCI state set, a TCI state group, or the like.
- the R may correspond to the maximum number of TRPs for PUSCH.
- the UE may determine the TCI state set to be used in the precoder for PUSCH based on DCI.
- the TCI state set may correspond to at least one such as a TCI state set set by RRC, a TCI state set activated by MAC CE, and a TCI state set predetermined by specifications.
- FIG. 11A-11C is a diagram showing an example of notification of spatial relationship information according to the seventh embodiment.
- 11A and 11B show ASN. 1 (Abstract Syntax Notation One) Corresponds to the RRC information element described using the notation.
- the PUSCH setting information may include a list of spatial relation information (SpatialrelationinfoToAddModList) for PUSCH.
- Each Spatial relationinfo-r17 included in the list is described in, for example, Rel. It may mean new spatial relation information after 17 or may mean existing spatial relation information.
- the spatial relationship information may be associated with the spatial relationship information ID (SpatialrelationinfoId).
- the PUSCH setting information may include a unified TCI state list (utci-StatesToAddModList) for PUSCH.
- utci-StatesToAddModList a unified TCI state list for PUSCH.
- Each uTCI-State included in the list may mean an individual unified TCI state.
- the unified TCI state may be associated with a unified TCI state ID (uTCI-StateId).
- FIG. 11C is a diagram showing an example of the correspondence of DCI fields for designating one TCI state set (spatial relation information set) according to the seventh embodiment.
- the UE for which the list of spatial relationship information of FIG. 11A is set may be instructed to set the TCI state based on the correspondence between the field of DCI and FIG. 11C.
- FIG. 11C the DCI code point (value of a field) and the corresponding spatial relationship state set are shown.
- Information # 0 and # 1 (Spatialrelationinfo # 0 and # 1) may be supported.
- PUSCH repetitive transmission can be appropriately performed based on the TCI state available for UL.
- a UE in which one SRS resource (or an SRS resource list including one SRS resource) is designated for PUSCH repetitive transmission may transmit the repetitive transmission based on the SRS resource.
- the repetitive transmission based on the SRS resource may mean repetitive transmission based on the spatial relationship determined based on the SRS resource (for example, using a spatial domain transmission filter based on the spatial relationship).
- a UE in which a plurality of SRS resources (or an SRS resource list including a plurality of SRS resources) is designated for PUSCH repeated transmission is the repeated transmission based on a part of these SRS resources.
- a part of the above may be transmitted, and the rest of the repeated transmission may be transmitted based on the rest.
- Implicit notifications using this DCI include the (detected) DCI (or corresponding to or used to receive the DCI), time resources, frequency resources, Control Channel Element (CCE) index, and physical. Even if it contains at least one of a resource block (Physical Resource Block (PRB)) index, a resource element (Resource Element (RE)) index, a search space index, a control resource set (Control Resource Set (CORESET)) index, and an aggregation level. good.
- PRB Physical Resource Block
- RE Resource Element
- CORESET Control Resource Set
- the UE may apply the same embodiment to the codebook-based transmission and the non-codebook-based transmission among the above-mentioned first to seventh embodiments.
- the UE may apply different embodiments of the first to seventh embodiments described above to codebook-based transmission and non-codebook-based transmission.
- the UE may switch between a plurality of embodiments among the above-mentioned first to seventh embodiments.
- the UE is set by RRC (for example, MAC CE-based control is used for PUSCH repetitive transmission). It may be applied when a new MAC CE (eg, a MAC CE as shown in the first embodiment) is received, otherwise a non-MAC CE-based control (second or second or).
- RRC for example, MAC CE-based control is used for PUSCH repetitive transmission.
- a new MAC CE eg, a MAC CE as shown in the first embodiment
- a non-MAC CE-based control second or second or
- a sixth embodiment may be applied.
- each of the above-described embodiments may be applied when the multi-TRP or the multi-panel (operation) is set in the UE, or may be applied when the multi-TRP or the multi-panel (operation) is not set in the UE.
- wireless communication system Wireless communication system
- communication is performed using any one of the wireless communication methods according to each of the above-described 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 an 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 Third Generation Partnership Project (3GPP). ..
- the radio communication system 1 may support dual connectivity (Multi-RAT Dual Connectivity (MR-DC)) between a plurality of Radio Access Technologies (RATs).
- MR-DC is dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), and dual connectivity between NR and LTE (NR-E).
- E-UTRA Evolved Universal Terrestrial Radio Access
- EN-DC E-UTRA-NR Dual Connectivity
- NE-DC -UTRA Dual Connectivity
- the LTE (E-UTRA) base station (eNB) is the master node (Master Node (MN)), and the NR base station (gNB) is the secondary node (Secondary Node (SN)).
- the base station (gNB) of NR is MN
- the base station (eNB) of LTE (E-UTRA) is SN.
- the wireless communication system 1 has dual connectivity between a plurality of base stations in 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 plurality of base stations in the same RAT for example, dual connectivity (NR-NR Dual Connectivity (NN-DC)) in which both MN and SN are NR base stations (gNB). )
- NR-NR Dual Connectivity NR-DC
- gNB NR base stations
- the wireless communication system 1 includes a base station 11 that forms a macro cell C1 having a relatively wide coverage, and a base station 12 (12a-12c) that is arranged in the macro cell C1 and forms a small cell C2 that is narrower than the macro cell C1. You may prepare.
- the user terminal 20 may be located in at least one cell. The arrangement, number, and the like of each cell and the user terminal 20 are not limited to the mode shown in the figure.
- the base stations 11 and 12 are not distinguished, they are collectively referred to as the base station 10.
- the user terminal 20 may be connected to at least one of the plurality of base stations 10.
- the user terminal 20 may use at least one of carrier aggregation (Carrier Aggregation (CA)) and dual connectivity (DC) using a plurality of component carriers (Component Carrier (CC)).
- CA Carrier Aggregation
- DC dual connectivity
- CC Component Carrier
- Each CC may be included in at least one of a first frequency band (Frequency Range 1 (FR1)) and a second frequency band (Frequency Range 2 (FR2)).
- the macro cell C1 may be included in FR1 and the small cell C2 may be included in FR2.
- FR1 may be in a frequency band of 6 GHz or less (sub 6 GHz (sub-6 GHz)), and FR2 may be in a frequency band higher than 24 GHz (above-24 GHz).
- the frequency bands and definitions of FR1 and FR2 are not limited to these, and for example, FR1 may correspond to a frequency band higher than FR2.
- the user terminal 20 may perform communication using at least one of Time Division Duplex (TDD) and Frequency Division Duplex (FDD) in each CC.
- TDD Time Division Duplex
- FDD Frequency Division Duplex
- the plurality of base stations 10 may be connected by wire (for example, optical fiber compliant with Common Public Radio Interface (CPRI), X2 interface, etc.) or wirelessly (for example, NR communication).
- wire for example, optical fiber compliant with Common Public Radio Interface (CPRI), X2 interface, etc.
- NR communication for example, when NR communication is used as a backhaul between base stations 11 and 12, the base station 11 corresponding to the higher-level station is an Integrated Access Backhaul (IAB) donor, and the base station 12 corresponding to a relay station (relay) is IAB. It may be called a node.
- IAB Integrated Access Backhaul
- relay station relay station
- the base station 10 may be connected to the core network 30 via another base station 10 or directly.
- the core network 30 may include at least one such as Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).
- EPC Evolved Packet Core
- 5GCN 5G Core Network
- NGC Next Generation Core
- the user terminal 20 may be a terminal that supports at least one of communication methods such as LTE, LTE-A, and 5G.
- a wireless access method based on Orthogonal Frequency Division Multiplexing may be used.
- OFDM Orthogonal Frequency Division Multiplexing
- DL Downlink
- UL Uplink
- CP-OFDM Cyclic Prefix OFDM
- DFT-s-OFDM Discrete Fourier Transform Spread OFDM
- OFDMA Orthogonal Frequency Division Multiple. Access
- SC-FDMA Single Carrier Frequency Division Multiple Access
- the wireless access method may be called a waveform.
- another wireless access system for example, another single carrier transmission system, another multi-carrier transmission system
- the UL and DL wireless access systems may be used as the UL and DL wireless access systems.
- downlink shared channels Physical Downlink Shared Channel (PDSCH)
- broadcast channels Physical Broadcast Channel (PBCH)
- downlink control channels Physical Downlink Control
- Channel PDCCH
- the uplink shared channel Physical Uplink Shared Channel (PUSCH)
- the uplink control channel Physical Uplink Control Channel (PUCCH)
- the random access channel shared by each user terminal 20 are used.
- Physical Random Access Channel (PRACH) Physical Random Access Channel or the like may be used.
- PDSCH User data, upper layer control information, System Information Block (SIB), etc. are transmitted by PDSCH.
- User data, upper layer control information, and the like may be transmitted by the PUSCH.
- MIB Master Information Block
- PBCH Master Information Block
- Lower layer control information may be transmitted by PDCCH.
- the lower layer control information may include, for example, downlink control information (Downlink Control Information (DCI)) including scheduling information of at least one of PDSCH and PUSCH.
- DCI Downlink Control Information
- the DCI that schedules PDSCH may be called DL assignment, DL DCI, etc.
- the DCI that schedules PUSCH may be called UL grant, UL DCI, etc.
- the PDSCH may be read as DL data
- the PUSCH may be read as UL data.
- a control resource set (COntrol REsource SET (CORESET)) and a search space (search space) may be used for PDCCH detection.
- CORESET corresponds to a resource for searching DCI.
- the search space corresponds to the search area and search method of PDCCH candidates (PDCCH candidates).
- One CORESET may be associated with one or more search spaces. The UE may monitor the CORESET associated with a search space 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.
- the "search space”, “search space set”, “search space setting”, “search space set setting”, “CORESET”, “CORESET setting”, etc. of the present disclosure may be read as each other.
- channel state information (Channel State Information (CSI)
- delivery confirmation information for example, it may be called Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), ACK / NACK, etc.
- scheduling request (Scheduling Request ( Uplink Control Information (UCI) including at least one of SR))
- the PRACH may transmit a random access preamble to establish a connection with the cell.
- downlinks, uplinks, etc. may be expressed without “links”. Further, it may be expressed without adding "Physical" at the beginning of various channels.
- a synchronization signal (Synchronization Signal (SS)), a downlink reference signal (Downlink Reference Signal (DL-RS)), and the like may be transmitted.
- the DL-RS includes a cell-specific reference signal (Cell-specific Reference Signal (CRS)), a channel state information reference signal (Channel State Information Reference Signal (CSI-RS)), and a demodulation reference signal (DeModulation).
- CRS Cell-specific Reference Signal
- CSI-RS Channel State Information Reference Signal
- DeModulation Demodulation reference signal
- Reference Signal (DMRS)), positioning reference signal (Positioning Reference Signal (PRS)), phase tracking reference signal (Phase Tracking Reference Signal (PTRS)), and the like may be transmitted.
- PRS Positioning Reference Signal
- PTRS Phase Tracking Reference Signal
- the synchronization signal may be, for example, at least one of a primary synchronization signal (Primary Synchronization Signal (PSS)) and a secondary synchronization signal (Secondary Synchronization Signal (SSS)).
- PSS Primary Synchronization Signal
- SSS Secondary Synchronization Signal
- the signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may be referred to as SS / PBCH block, SS Block (SSB) and the like.
- SS, SSB and the like may also be called a reference signal.
- a measurement reference signal Sounding Reference Signal (SRS)
- a demodulation reference signal DMRS
- UL-RS Uplink Reference Signal
- UE-specific Reference Signal UE-specific Reference Signal
- FIG. 13 is a diagram showing an example of the configuration of the base station according to the embodiment.
- the base station 10 includes a control unit 110, a transmission / reception unit 120, a transmission / reception antenna 130, and a transmission line interface 140.
- the control unit 110, the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission line interface 140 may each be provided with one or more.
- this example mainly shows the functional blocks of the feature portion in 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 part described below may be omitted.
- the control unit 110 controls the entire base station 10.
- the control unit 110 can be composed of a controller, a control circuit, and the like described based on the 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, and the like 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, and the like, and transfer the data to the transmission / reception unit 120.
- the control unit 110 may perform call processing (setting, release, etc.) of the communication channel, state management of the base station 10, management of radio resources, and the like.
- the transmission / reception unit 120 may include a baseband unit 121, a Radio Frequency (RF) unit 122, and a measurement unit 123.
- the baseband unit 121 may include a transmission processing unit 1211 and a reception processing unit 1212.
- the transmission / reception unit 120 includes a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmission / reception circuit, and the like, which are described based on common recognition in the technical fields 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 composed of a transmission unit and a reception unit.
- the transmission unit may be composed of a transmission processing unit 1211 and an RF unit 122.
- the receiving unit may be composed of a receiving processing unit 1212, an RF unit 122, and a measuring unit 123.
- the transmitting / receiving antenna 130 can be composed of an antenna described based on common recognition in the technical field according to the present disclosure, for example, an array antenna.
- the transmission / reception unit 120 may transmit the above-mentioned downlink channel, synchronization signal, downlink reference signal, and the like.
- the transmission / reception unit 120 may receive the above-mentioned uplink channel, uplink reference signal, and the like.
- the transmission / reception unit 120 may form at least one of a transmission beam and a reception beam by using digital beamforming (for example, precoding), analog beamforming (for example, phase rotation), and the like.
- digital beamforming for example, precoding
- analog beamforming for example, phase rotation
- the transmission / reception unit 120 processes, for example, Packet Data Convergence Protocol (PDCP) layer processing and Radio Link Control (RLC) layer processing (for example, RLC) for data, control information, etc. acquired from control unit 110.
- PDCP Packet Data Convergence Protocol
- RLC Radio Link Control
- MAC Medium Access Control
- HARQ retransmission control HARQ retransmission control
- the transmission / reception unit 120 performs channel coding (may include error correction coding), modulation, mapping, filtering, and discrete Fourier transform (Discrete Fourier Transform (DFT)) for the bit string to be transmitted.
- the base band signal may be output by performing processing (if necessary), inverse fast Fourier transform (IFFT) processing, precoding, digital-analog conversion, and other transmission processing.
- IFFT inverse fast Fourier transform
- the transmission / reception unit 120 may perform modulation, filtering, amplification, etc. on the baseband signal to the radio frequency band, and transmit the signal in the radio frequency band via the transmission / reception antenna 130. ..
- the transmission / reception unit 120 may perform amplification, filtering, demodulation to a baseband signal, or the like on the signal in the radio frequency band received by the transmission / reception antenna 130.
- the transmission / reception unit 120 (reception processing unit 1212) performs analog-digital conversion, fast Fourier transform (FFT) processing, and inverse discrete Fourier transform (IDFT) on the acquired baseband signal. )) Processing (if necessary), filtering, demapping, demodulating, decoding (may include error correction decoding), MAC layer processing, RLC layer processing, PDCP layer processing, and other reception processing are applied. User data and the like may be acquired.
- FFT fast Fourier transform
- IDFT inverse discrete Fourier transform
- the transmission / reception unit 120 may perform measurement on the received signal.
- the measurement unit 123 may perform Radio Resource Management (RRM) measurement, Channel State Information (CSI) measurement, or the like based on the received signal.
- the measuring unit 123 has received power (for example, Reference Signal Received Power (RSRP)) and reception quality (for example, Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)).
- RSRP Reference Signal Received Power
- RSSQ Reference Signal Received Quality
- SINR Signal to Noise Ratio
- Signal strength for example, Received Signal Strength Indicator (RSSI)
- propagation path information for example, CSI
- the measurement result may be output to the control unit 110.
- the transmission line interface 140 transmits / receives signals (backhaul signaling) to / from a device included in the core network 30, another base station 10 and the like, and provides user data (user plane data) and control plane for the user terminal 20. Data or the like may be acquired or transmitted.
- the transmission unit and the reception unit of the base station 10 in the present disclosure may be composed of at least one of the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission line interface 140.
- the transmission / reception unit 120 is used for determining spatial relationship information for an uplink shared channel (Physical Uplink Shared Channel (PUSCH)) for a plurality of transmission / reception points, and is used for Radio Resource Control (RRC) signaling and Medium Access Control (MAC). ) At least one of signaling and downlink control information (DCI) may be transmitted to the user terminal 20.
- PUSCH Physical Uplink Shared Channel
- RRC Radio Resource Control
- MAC Medium Access Control
- DCI downlink control information
- the transmission / reception unit 120 may receive the PUSCH repeatedly transmitted by the user terminal 20 using the spatial domain transmission filter based on the spatial relationship information.
- FIG. 14 is a diagram showing an example of the configuration of the user terminal according to the embodiment.
- the user terminal 20 includes a control unit 210, a transmission / reception unit 220, and a transmission / reception antenna 230.
- the control unit 210, the transmission / reception unit 220, and the transmission / reception antenna 230 may each be provided with one or more.
- this example mainly shows the functional blocks of the feature portion in 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 part described below may be omitted.
- the control unit 210 controls the entire user terminal 20.
- the control unit 210 can be composed of a controller, a control circuit, and the like described based on the 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, and the like using the transmission / reception unit 220 and the transmission / reception antenna 230.
- the control unit 210 may generate data to be transmitted as a signal, control information, a sequence, and the like, and transfer the data to the transmission / reception unit 220.
- the transmission / reception unit 220 may include a baseband unit 221 and an RF unit 222, and a measurement unit 223.
- the baseband unit 221 may include a transmission processing unit 2211 and a reception processing unit 2212.
- the transmission / reception unit 220 can be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmission / reception circuit, and the like, which are described based on the 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 composed of a transmission unit and a reception unit.
- the transmission unit may be composed of a transmission processing unit 2211 and an RF unit 222.
- the receiving unit may be composed of a receiving processing unit 2212, an RF unit 222, and a measuring unit 223.
- the transmitting / receiving antenna 230 can be composed of an antenna described based on common recognition in the technical field according to the present disclosure, for example, an array antenna.
- the transmission / reception unit 220 may receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, and the like.
- the transmission / reception unit 220 may transmit the above-mentioned uplink channel, uplink reference signal, and the like.
- the transmission / reception unit 220 may form at least one of a transmission beam and a reception beam by using digital beamforming (for example, precoding), analog beamforming (for example, phase rotation), and the like.
- digital beamforming for example, precoding
- analog beamforming for example, phase rotation
- the transmission / reception unit 220 (transmission processing unit 2211) performs PDCP layer processing, RLC layer processing (for example, RLC retransmission control), and MAC layer processing (for example, for data, control information, etc. acquired from the control unit 210). , HARQ retransmission control), etc., to generate a bit string to be transmitted.
- RLC layer processing for example, RLC retransmission control
- MAC layer processing for example, for data, control information, etc. acquired from the control unit 210.
- HARQ retransmission control HARQ retransmission control
- the transmission / reception unit 220 (transmission processing unit 2211) performs channel coding (may include error correction coding), modulation, mapping, filtering processing, DFT processing (if necessary), and IFFT processing for the bit string to be transmitted. , Precoding, digital-to-analog conversion, and other transmission processing may be performed to output the baseband signal.
- Whether or not to apply the DFT process may be based on the transform precoding setting.
- the transmission / reception unit 220 transmits the channel using the DFT-s-OFDM waveform.
- the DFT process may be performed as the transmission process, and if not, the DFT process may not be performed as the transmission process.
- the transmission / reception unit 220 may perform modulation, filtering, amplification, etc. on the baseband signal to the radio frequency band, and transmit the signal in the radio frequency band via the transmission / reception antenna 230. ..
- the transmission / reception unit 220 may perform amplification, filtering, demodulation to a baseband signal, or the like on the signal in the radio frequency band received by the transmission / reception antenna 230.
- the transmission / reception unit 220 (reception processing unit 2212) performs analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filtering processing, demapping, demodulation, and decoding (error correction) for the acquired baseband signal. Decoding may be included), MAC layer processing, RLC layer processing, PDCP layer processing, and other reception processing may be applied to acquire user data and the like.
- the transmission / reception unit 220 may perform measurement on the received signal.
- the measuring unit 223 may perform RRM measurement, CSI measurement, or the like based on the received signal.
- the measuring unit 223 may measure received power (for example, RSRP), reception quality (for example, RSRQ, SINR, SNR), signal strength (for example, RSSI), propagation path information (for example, CSI), and the like.
- the measurement result may be output to the control unit 210.
- the transmitter and receiver of the user terminal 20 in the present disclosure may be composed of at least one of the transmitter / receiver 220 and the transmitter / receiver antenna 230.
- the control unit 210 uses at least one of Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, and downlink control information (DCI) to provide uplinks to a plurality of transmission / reception points.
- RRC Radio Resource Control
- MAC Medium Access Control
- DCI downlink control information
- Spatial relationship information for a shared channel Physical Uplink Shared Channel (PUSCH) may be determined.
- the transmission / reception unit 220 may repeatedly transmit the PUSCH using a spatial domain transmission filter based on the spatial relationship information.
- the spatial relationship information and the spatial relationship may be read as each other.
- the control unit 210 may determine the spatial relationship information based on the SRS resource list related to the measurement reference signal (Sounding Reference Signal (SRS)) resource set set by the RRC signaling.
- SRS Sounding Reference Signal
- the control unit 210 may determine the spatial relationship information based on the plurality of SRS resource lists corresponding to the spatial relationship information for each layer.
- the control unit 210 may determine the plurality of SRS resource lists corresponding to the spatial relationship information for each layer based on at least one of MAC CE and DCI.
- each functional block is realized by using one physically or logically connected device, or directly or indirectly (for example, two or more physically or logically separated devices). , Wired, wireless, etc.) and may be realized using these plurality of devices.
- the functional block may be realized by combining the software with the one device or the plurality of devices.
- the functions include judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, solution, selection, selection, establishment, comparison, assumption, expectation, and deemed. , Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc.
- a functional block (constituent unit) for functioning transmission may be referred to as a transmitting unit (transmitting unit), a transmitter (transmitter), or the like.
- the method of realizing each of them is not particularly limited.
- the base station, user terminal, and the like in one embodiment of the present disclosure may function as a computer that processes the wireless communication method of the present disclosure.
- FIG. 15 is a diagram showing an example of the hardware configuration of the base station and the user terminal according to the embodiment.
- the base station 10 and the 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. ..
- the hardware configuration of the base station 10 and the user terminal 20 may be configured to include one or more of the devices shown in the figure, or may be configured not to include some of the devices.
- processor 1001 may be a plurality of processors. Further, the processing may be executed by one processor, or the processing may be executed simultaneously, sequentially, or by using other methods by two or more processors.
- the processor 1001 may be mounted by one or more chips.
- the processor 1001 For each function of the base station 10 and the user terminal 20, for example, by loading predetermined software (program) on hardware such as the processor 1001 and the memory 1002, the processor 1001 performs an operation and communicates via the communication device 1004. It is realized by controlling at least one of reading and writing of data in the memory 1002 and the storage 1003.
- predetermined software program
- Processor 1001 operates, for example, an operating system to control 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 unit, a register, and the like.
- CPU central processing unit
- control unit 110 210
- transmission / reception unit 120 220
- the like may be realized by the processor 1001.
- the processor 1001 reads a program (program code), a software module, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and executes various processes according to these.
- a program program code
- the control unit 110 may be realized by a control program stored in the memory 1002 and operating in the processor 1001, and may be realized in the same manner for other functional blocks.
- the memory 1002 is a computer-readable recording medium, such as at least a Read Only Memory (ROM), an Erasable Programmable ROM (EPROM), an Electrically EPROM (EPROM), a Random Access Memory (RAM), or any other suitable storage medium. It may be composed of one.
- the memory 1002 may be referred to as a register, a cache, a main memory (main storage device), or the like.
- the memory 1002 can store a program (program code), a software module, or the like that can be executed to implement the wireless communication method according to the embodiment of the present disclosure.
- the storage 1003 is a computer-readable recording medium, and is, for example, a flexible disk, a floppy (registered trademark) disk, an optical magnetic disk (for example, a compact disc (Compact Disc ROM (CD-ROM)), a digital versatile disk, etc.). At least one of Blu-ray® disks, removable disks, optical disc drives, smart cards, flash memory devices (eg cards, sticks, key drives), magnetic stripes, databases, servers, and other suitable storage media. It may be composed of.
- the storage 1003 may be referred to as an auxiliary storage device.
- the communication device 1004 is hardware (transmission / reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, or the like.
- the communication device 1004 includes, for example, a high frequency switch, a duplexer, a filter, a frequency synthesizer, etc. in order to realize at least one of frequency division duplex (Frequency Division Duplex (FDD)) and time division duplex (Time Division Duplex (TDD)). May be configured to include.
- FDD Frequency Division Duplex
- TDD Time Division Duplex
- the transmission / reception unit 120 (220), the transmission / reception antenna 130 (230), and the like described above may be realized by the communication device 1004.
- the transmission / reception unit 120 (220) may be physically or logically separated from the transmission unit 120a (220a) and the reception unit 120b (220b).
- the input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that receives an 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.
- the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).
- each device such as the processor 1001 and the memory 1002 is connected by the bus 1007 for communicating information.
- the bus 1007 may be configured by using a single bus, or may be configured by using a different bus for each device.
- the base station 10 and the user terminal 20 include a microprocessor, a digital signal processor (Digital Signal Processor (DSP)), an Application Specific Integrated Circuit (ASIC), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), and the like. It may be configured to include hardware, and a part or all of each functional block may be realized by using the hardware. For example, processor 1001 may be implemented using at least one of these hardware.
- DSP Digital Signal Processor
- ASIC Application Specific Integrated Circuit
- PLD Programmable Logic Device
- FPGA Field Programmable Gate Array
- the terms described in the present disclosure and the terms necessary for understanding the present disclosure may be replaced with terms having the same or similar meanings.
- channels, symbols and signals may be read interchangeably.
- the signal may be a message.
- the reference signal may be abbreviated as RS, and may be referred to as a pilot, a pilot signal, or the like depending on the applied standard.
- the component carrier Component Carrier (CC)
- CC Component Carrier
- the wireless frame may be composed of one or more periods (frames) in the time domain.
- Each of the one or more periods (frames) constituting the wireless frame may be referred to as a subframe.
- the subframe may be composed of one or more slots in the time domain.
- the subframe may have a fixed time length (eg, 1 ms) that is independent of numerology.
- the numerology may be a communication parameter applied to at least one of transmission and reception of a signal or channel.
- Numerology includes, for example, subcarrier spacing (SubCarrier Spacing (SCS)), bandwidth, symbol length, cyclic prefix length, transmission time interval (Transmission Time Interval (TTI)), number of symbols per TTI, and wireless frame configuration.
- SCS subcarrier Spacing
- TTI Transmission Time Interval
- a specific filtering process performed by the transmitter / receiver in the frequency domain, a specific windowing process performed by the transmitter / receiver in the time domain, and the like may be indicated.
- the slot may be composed of one or more symbols in the time domain (Orthogonal Frequency Division Multiple Access (OFDMA) symbol, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol, etc.).
- OFDMA Orthogonal Frequency Division Multiple Access
- SC-FDMA Single Carrier Frequency Division Multiple Access
- the slot may be a time unit based on numerology.
- the slot may include a plurality of mini slots. Each minislot may consist of one or more symbols in the time domain.
- the mini-slot may also be referred to as a sub-slot.
- a minislot may consist of a smaller number of symbols than the slot.
- a PDSCH (or PUSCH) transmitted in a time unit larger than the minislot may be referred to as a PDSCH (PUSCH) mapping type A.
- the PDSCH (or PUSCH) transmitted using the minislot may be referred to as PDSCH (PUSCH) mapping type B.
- the wireless frame, subframe, slot, minislot and symbol all represent the time unit when transmitting a signal.
- the radio frame, subframe, slot, minislot and symbol may have different names corresponding to each.
- the time units such as frames, subframes, slots, mini slots, and symbols in the present disclosure may be read as each other.
- one subframe may be called TTI
- a plurality of consecutive subframes may be called TTI
- one slot or one minislot may be called 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. It may be.
- the unit representing TTI may be called a slot, a mini slot, or the like instead of a subframe.
- TTI refers to, for example, the minimum time unit of scheduling in wireless communication.
- the base station schedules each user terminal to allocate radio resources (frequency bandwidth that can be used in each user terminal, transmission power, etc.) in TTI units.
- the definition of TTI is not limited to this.
- the TTI may be a transmission time unit such as a channel-encoded data packet (transport block), a code block, or a code word, or may be a processing unit such as scheduling or link adaptation.
- the time interval for example, the number of symbols
- the transport block, code block, code word, etc. may be shorter than the TTI.
- one or more TTIs may be the minimum time unit for scheduling. Further, the number of slots (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 referred to as a normal TTI (TTI in 3GPP Rel. 8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a slot, or the like.
- a TTI shorter than a normal TTI may be referred to as a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a minislot, a subslot, a slot, or the like.
- the long TTI (for example, normal TTI, subframe, etc.) may be read as a TTI having a time length of more than 1 ms, and the short TTI (for example, shortened TTI, etc.) is less than the TTI length of the long TTI and 1 ms. It may be read as a TTI having the above TTI length.
- a resource block is a resource allocation unit in the time domain and the frequency domain, and may include one or a plurality of continuous subcarriers in the frequency domain.
- the number of subcarriers contained in the RB may be the same regardless of the numerology, and may be, for example, 12.
- the number of subcarriers contained in the RB may be determined based on numerology.
- the RB may include one or more symbols in the time domain, and may have a length of 1 slot, 1 mini slot, 1 subframe or 1 TTI.
- Each 1TTI, 1 subframe, etc. may be composed of one or a plurality of resource blocks.
- One or more RBs are a physical resource block (Physical RB (PRB)), a sub-carrier group (Sub-Carrier Group (SCG)), a resource element group (Resource Element Group (REG)), a PRB pair, and an RB. It may be called a pair or the like.
- Physical RB Physical RB (PRB)
- SCG sub-carrier Group
- REG resource element group
- the resource block may be composed of one or a plurality of resource elements (Resource Element (RE)).
- RE Resource Element
- 1RE may be a radio resource area of 1 subcarrier and 1 symbol.
- Bandwidth Part (which may also be called partial bandwidth) represents a subset of consecutive common resource blocks (RBs) for a neurology in a carrier. May be good.
- the common RB may be specified by the index of the RB with respect to the common reference point of the carrier.
- PRBs may be defined in a BWP and numbered within that BWP.
- the BWP may include UL BWP (BWP for UL) and DL BWP (BWP for DL).
- BWP UL BWP
- BWP for DL DL BWP
- One or more BWPs may be set in one carrier for the UE.
- At least one of the configured BWPs may be active, and the UE may not expect to send or receive a given channel / signal outside the active BWP.
- “cell”, “carrier” and the like in this disclosure may be read as “BWP”.
- the above-mentioned structures such as wireless frames, subframes, slots, mini slots, and symbols are merely examples.
- the number of subframes contained in a wireless frame the number of slots per subframe or wireless frame, the number of minislots contained in a slot, the number of symbols and RBs contained in a slot or minislot, and included in the RB.
- the number of subcarriers, the number of symbols in the TTI, the symbol length, the cyclic prefix (CP) length, and other configurations can be changed in various ways.
- the information, parameters, etc. described in the present disclosure may be expressed using absolute values, relative values from predetermined values, or using other corresponding information. It may be represented. For example, radio resources may be indicated by a given index.
- the information, signals, etc. described in this disclosure may be represented using any of a variety of different techniques.
- data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description are voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. It may be represented by a combination of.
- information, signals, etc. can be output from the upper layer to the lower layer and from the lower layer to at least one of the upper layers.
- Information, signals, etc. may be input / output via a plurality of 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 / output information, signals, etc. can be overwritten, updated, or added. The output information, signals, etc. may be deleted. The input information, signals, etc. may be transmitted to another device.
- the notification of information is not limited to the mode / embodiment described in the present disclosure, and may be performed by using other methods.
- the notification of information in the present disclosure includes physical layer signaling (for example, downlink control information (DCI)), uplink control information (Uplink Control Information (UCI))), and higher layer signaling (for example, 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 carried out by.
- DCI downlink control information
- UCI Uplink Control Information
- RRC Radio Resource Control
- MIB Master Information Block
- SIB System Information Block
- MAC Medium Access Control
- the physical layer signaling may be referred to as Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signal), L1 control information (L1 control signal), and the like.
- the RRC signaling may be called an RRC message, and may be, for example, an RRC connection setup (RRC Connection Setup) message, an RRC connection reconfiguration (RRC Connection Reconfiguration) message, or the like.
- MAC signaling may be notified using, for example, a MAC control element (MAC Control Element (CE)).
- CE MAC Control Element
- the notification of predetermined information is not limited to the explicit notification, but implicitly (for example, by not notifying the predetermined information or another information). May be done (by notification of).
- the determination may be made by a value represented by 1 bit (0 or 1), or by a boolean value represented by true or false. , May be done by numerical comparison (eg, comparison with a given value).
- Software whether referred to as software, firmware, middleware, microcode, hardware description language, or by any other name, is an instruction, instruction set, code, code segment, program code, program, subprogram, software module.
- Applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, features, etc. should be broadly interpreted.
- software, instructions, information, etc. may be transmitted and received via a transmission medium.
- a transmission medium For example, a website where software uses at least one of wired technology (coaxial cable, fiber optic cable, twist pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.).
- wired technology coaxial cable, fiber optic cable, twist pair, digital subscriber line (DSL), etc.
- wireless technology infrared, microwave, etc.
- the terms “system” and “network” used in this disclosure may be used interchangeably.
- the “network” may mean a device (eg, a base station) included in the network.
- precoding "precoding weight”
- QCL Quality of Co-Co-Location
- TCI state Transmission Configuration Indication state
- space "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 compatible.
- Base station BS
- radio base station fixed station
- NodeB NodeB
- eNB eNodeB
- gNB gNodeB
- Access point "Transmission point (Transmission Point (TP))
- RP Reception point
- TRP Transmission / Reception Point
- Panel , "Cell”, “sector”, “cell group”, “carrier”, “component carrier” and the like
- Base stations are sometimes referred to by terms such as macrocells, small cells, femtocells, and picocells.
- the base station can accommodate one or more (for example, three) cells.
- a base station accommodates multiple cells, the entire coverage area of the base station can be divided into multiple smaller areas, each smaller area being a base station subsystem (eg, a small indoor base station (Remote Radio)).
- Communication services can also be provided by Head (RRH))).
- RRH Head
- the term "cell” or “sector” refers to part or all of the coverage area of at least one of the base stations and base station subsystems that provide communication services in this coverage.
- MS mobile station
- UE user equipment
- terminal terminal
- 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. , Handset, user agent, mobile client, 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 the mobile body, the mobile body itself, or the like.
- the moving body may be a vehicle (for example, a car, an airplane, etc.), an unmanned moving body (for example, a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned type). ) May be.
- at least one of the base station and the mobile station includes a device that does not necessarily move during communication operation.
- at least one of the base station and the mobile station may be an Internet of Things (IoT) device such as a sensor.
- IoT Internet of Things
- the base station in the present disclosure may be read by the user terminal.
- the communication between the base station and the user terminal is replaced with the communication between a plurality of user terminals (for example, it may be called Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.).
- D2D Device-to-Device
- V2X Vehicle-to-Everything
- Each aspect / embodiment of the present disclosure may be applied to the configuration.
- the user terminal 20 may have the function of the base station 10 described above.
- words such as "up” and “down” may be read as words corresponding to communication between terminals (for example, "side”).
- the upstream channel, the downstream channel, and the like may be read as a side channel.
- the user terminal in the present disclosure may be read as a base station.
- the base station 10 may have the functions of the user terminal 20 described above.
- the operation performed by the base station may be performed by its upper node (upper node) in some cases.
- various operations performed for communication with a terminal are performed by the base station and one or more network nodes other than the base station (for example,).
- Mobility Management Entity (MME), Serving-Gateway (S-GW), etc. can be considered, but it is not limited to these), or it is clear that it can be performed by a combination thereof.
- each aspect / embodiment described in the present disclosure may be used alone, in combination, or switched with execution. Further, the order of the processing procedures, sequences, flowcharts, etc. of each aspect / embodiment described in the present disclosure may be changed as long as there is no contradiction. For example, the methods described in the present disclosure present elements of various steps using exemplary order, and are not limited to the particular order presented.
- LTE Long Term Evolution
- LTE-A LTE-Advanced
- SUPER 3G IMT-Advanced
- 4G 4th generation mobile communication system
- 5G 5th generation mobile communication system
- 6G 6th generation mobile communication system
- xG xG (xG (x is, for example, integer, fraction)
- Future Radio Access FAA
- RAT New -Radio Access Technology
- NR New Radio
- NX New radio access
- FX Future generation radio access
- GSM registered trademark
- CDMA2000 Code Division Multiple Access
- UMB Ultra Mobile Broadband
- LTE 802.11 Wi-Fi®
- LTE 802.16 WiMAX®
- LTE 802.20 Ultra-WideBand (UWB), Bluetooth®, and other suitable radios. It may be applied to a system using a communication method, a next-generation system extended based on these, and the like.
- UMB Ultra-WideBand
- references to elements using designations such as “first”, “second”, etc. as used in this disclosure does not generally limit the quantity or order of those elements. These designations can be used in the present disclosure as a convenient way to distinguish between two or more elements. Thus, references to the first and second elements do not mean that only two elements can be adopted or that the first element must somehow precede the second element.
- determining used in this disclosure may include a wide variety of actions.
- judgment (decision) means judgment (judging), calculation (calculating), calculation (computing), processing (processing), derivation (deriving), investigation (investigating), search (looking up, search, inquiry) ( For example, searching in a table, database or another data structure), ascertaining, etc. may be considered to be "judgment”.
- judgment (decision) includes receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), and access (for example). It may be regarded as “judgment (decision)” such as “accessing” (for example, accessing data in memory).
- judgment (decision) is regarded as “judgment (decision)” of solving, selecting, selecting, establishing, comparing, and the like. May be good. That is, “judgment (decision)” may be regarded as “judgment (decision)” of some action.
- connection are any direct or indirect connections or connections between two or more elements. Means, and can include the presence of one or more intermediate elements between two elements that are “connected” or “joined” to each other.
- the connection or connection between the elements may be physical, logical, or a combination thereof. For example, "connection” may be read as "access”.
- the radio frequency domain microwaves. It can be considered to be “connected” or “coupled” to each other using frequency, electromagnetic energy having wavelengths in the light (both visible and invisible) regions, and the like.
- the term "A and B are different” may mean “A and B are different from each other”.
- the term may mean that "A and B are different from C”.
- Terms such as “separate” and “combined” may be interpreted in the same way as “different”.
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Abstract
Description
Rel.15では、データ送信において繰り返し送信がサポートされている。例えば、基地局(ネットワーク(NW)、gNB)は、DLデータ(例えば、下り共有チャネル(PDSCH))の送信を所定回数だけ繰り返して行う。あるいは、UEは、ULデータ(例えば、上り共有チャネル(PUSCH))を所定回数だけ繰り返して行う。
・時間領域リソース(例えば、開始シンボル、各スロット内のシンボル数等)の割り当て、
・周波数領域リソース(例えば、所定数のリソースブロック(RB:Resource Block)、所定数のリソースブロックグループ(RBG:Resource Block Group))の割り当て、
・変調及び符号化方式(MCS:Modulation and Coding Scheme)インデックス、
・PUSCHの復調用参照信号(DMRS:Demodulation Reference Signal)の構成(configuration)、
・PUSCHの空間関係情報(spatial relation info)、又は送信構成指示(TCI:Transmission Configuration Indication又はTransmission Configuration Indicator)の状態(TCI状態(TCI-state))。
PUSCH送信に対して繰り返し送信タイプBを適用する場合、PUSCH送信に利用できないシンボル(又は、シンボルパターン)に関する情報をUEに通知することも検討されている。PUSCH送信に利用できないシンボルパターンは、無効シンボルパターン、Invalid symbol pattern、インバリッドシンボルパターン等と呼ばれてもよい。
繰り返し送信タイプBを適用してサブスロット単位で繰り返し送信が行われる場合、繰り返し係数(K)及びデータの割当て単位等によっては、ある繰り返し送信がスロット境界(slot-boundary)をクロス(cross)するケースが生じる。
Rel.15 NRにおいて、UEは、測定用参照信号(例えば、サウンディング参照信号(Sounding Reference Signal(SRS)))の送信に用いられる情報(SRS設定情報、例えば、RRC制御要素の「SRS-Config」内のパラメータ)を受信してもよい。
NRでは、1つ又は複数の送受信ポイント(Transmission/Reception Point(TRP))(マルチTRP)が、1つ又は複数のパネル(マルチパネル)を用いて、UEに対してDL送信を行うことが検討されている。また、UEが、1つ又は複数のTRPに対してUL送信を行うことが検討されている(図4参照)。
<第1の実施形態>
第1の実施形態においては、UEは、複数のTRPにわたるPUSCHのための空間関係情報を、RRCシグナリング、MAC CE及びDCIの組み合わせによって通知される。
第2の実施形態においては、UEは、複数のTRPにわたるPUSCHのための空間関係情報を、RRCシグナリング及びDCIの組み合わせによって通知される。
第3の実施形態においては、UEは、複数のTRPにわたるPUSCHのための空間関係情報を、RRCシグナリング及びMAC CEの組み合わせによって通知される。
第4の実施形態においては、UEは、複数のTRPにわたるPUSCHのための空間関係情報を、MAC CE及びDCIの組み合わせによって通知される。
第5の実施形態においては、UEは、複数のTRPにわたるPUSCHのための空間関係情報を、MAC CEによって通知される。
第6の実施形態においては、UEは、複数のTRPにわたるPUSCHのための空間関係情報を、DCIによって通知される。
第7の実施形態においては、複数のTRPにわたるPUSCHのための空間関係情報として(又はその代わりに)、TCI状態が用いられてもよい。当該TCI状態は、下りリンクのTCI状態(DL TCI状態)、上りリンクのTCI状態(UL TCI状態)及び統一されたTCI状態(unified TCI state)の少なくとも1つに該当してもよい。なお、UL TCI状態は、空間関係情報(spatialrelationinfo)で読み替えられてもよい。
上述の各実施形態において、PUSCH繰り返し送信のために1つのSRSリソース(又は1つのSRSリソースを含むSRSリソースリスト)が指定されたUEは、当該SRSリソースに基づいて当該繰り返し送信を送信してもよい。なお、SRSリソースに基づく繰り返し送信は、SRSリソースに基づいて判断される空間関係に基づく(例えば、当該空間関係に基づく空間ドメイン送信フィルタを用いる)繰り返し送信を意味してもよい。
以下、本開示の一実施形態に係る無線通信システムの構成について説明する。この無線通信システムでは、本開示の上記各実施形態に係る無線通信方法のいずれか又はこれらの組み合わせを用いて通信が行われる。
図13は、一実施形態に係る基地局の構成の一例を示す図である。基地局10は、制御部110、送受信部120、送受信アンテナ130及び伝送路インターフェース(transmission line interface)140を備えている。なお、制御部110、送受信部120及び送受信アンテナ130及び伝送路インターフェース140は、それぞれ1つ以上が備えられてもよい。
図14は、一実施形態に係るユーザ端末の構成の一例を示す図である。ユーザ端末20は、制御部210、送受信部220及び送受信アンテナ230を備えている。なお、制御部210、送受信部220及び送受信アンテナ230は、それぞれ1つ以上が備えられてもよい。
なお、上記実施形態の説明に用いたブロック図は、機能単位のブロックを示している。これらの機能ブロック(構成部)は、ハードウェア及びソフトウェアの少なくとも一方の任意の組み合わせによって実現される。また、各機能ブロックの実現方法は特に限定されない。すなわち、各機能ブロックは、物理的又は論理的に結合した1つの装置を用いて実現されてもよいし、物理的又は論理的に分離した2つ以上の装置を直接的又は間接的に(例えば、有線、無線などを用いて)接続し、これら複数の装置を用いて実現されてもよい。機能ブロックは、上記1つの装置又は上記複数の装置にソフトウェアを組み合わせて実現されてもよい。
なお、本開示において説明した用語及び本開示の理解に必要な用語については、同一の又は類似する意味を有する用語と置き換えてもよい。例えば、チャネル、シンボル及び信号(シグナル又はシグナリング)は、互いに読み替えられてもよい。また、信号はメッセージであってもよい。参照信号(reference signal)は、RSと略称することもでき、適用される標準によってパイロット(Pilot)、パイロット信号などと呼ばれてもよい。また、コンポーネントキャリア(Component Carrier(CC))は、セル、周波数キャリア、キャリア周波数などと呼ばれてもよい。
Claims (5)
- Radio Resource Control(RRC)シグナリング、Medium Access Control(MAC)シグナリング及び下りリンク制御情報(Downlink Control Information(DCI))の少なくとも1つを用いて、複数の送受信ポイントに対する上りリンク共有チャネル(Physical Uplink Shared Channel(PUSCH))のための空間関係情報を決定する制御部と、
前記空間関係情報に基づく空間ドメイン送信フィルタを用いて、前記PUSCHを繰り返し送信する送信部と、を有する端末。 - 前記制御部は、前記RRCシグナリングによって設定される、測定用参照信号(Sounding Reference Signal(SRS))リソースセットに関連するSRSリソースリストに基づいて、前記空間関係情報を決定する請求項1に記載の端末。
- 前記制御部は、レイヤごとの空間関係情報にそれぞれ対応する複数の前記SRSリソースリストに基づいて、前記空間関係情報を決定する請求項2に記載の端末。
- Radio Resource Control(RRC)シグナリング、Medium Access Control(MAC)シグナリング及び下りリンク制御情報(Downlink Control Information(DCI))の少なくとも1つを用いて、複数の送受信ポイントに対する上りリンク共有チャネル(Physical Uplink Shared Channel(PUSCH))のための空間関係情報を決定するステップと、
前記空間関係情報に基づく空間ドメイン送信フィルタを用いて、前記PUSCHを繰り返し送信するステップと、を有する端末の無線通信方法。 - 複数の送受信ポイントに対する上りリンク共有チャネル(Physical Uplink Shared Channel(PUSCH))のための空間関係情報の決定に用いられる、Radio Resource Control(RRC)シグナリング、Medium Access Control(MAC)シグナリング及び下りリンク制御情報(Downlink Control Information(DCI))の少なくとも1つを、端末に送信する送信部と、
前記端末によって前記空間関係情報に基づく空間ドメイン送信フィルタを用いて繰り返し送信される前記PUSCHを、受信する受信部と、を有する基地局。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20922232.2A EP4114069A4 (en) | 2020-02-28 | 2020-02-28 | TERMINAL, WIRELESS COMMUNICATION METHOD AND BASE STATION |
| US17/802,808 US12289721B2 (en) | 2020-02-28 | 2020-02-28 | Terminal, radio communication method, and base station |
| PCT/JP2020/008351 WO2021171566A1 (ja) | 2020-02-28 | 2020-02-28 | 端末、無線通信方法及び基地局 |
| CN202080097735.4A CN115211206B (zh) | 2020-02-28 | 2020-02-28 | 终端、基站、系统以及无线通信方法 |
| JP2022502784A JP7591552B2 (ja) | 2020-02-28 | 2020-02-28 | 端末、無線通信方法、基地局及びシステム |
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| EP (1) | EP4114069A4 (ja) |
| JP (1) | JP7591552B2 (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2024536346A (ja) * | 2021-10-08 | 2024-10-04 | エルジー エレクトロニクス インコーポレイティド | 無線通信システムにおいて上りリンク送受信を行う方法及び装置 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20230171063A1 (en) * | 2020-03-27 | 2023-06-01 | Sharp Kabushiki Kaisha | User equipments, base stations and methods for multi-beam/panel pusch transmission |
| US12256369B2 (en) * | 2020-08-05 | 2025-03-18 | Apple Inc. | Transmission of nominal repetitions of data over an unlicensed spectrum |
| WO2022052044A1 (en) * | 2020-09-11 | 2022-03-17 | Qualcomm Incorporated | Physical uplink shared channel (pusch) transmission in joint downlink and uplink transmission configuration indicator (tci) state scenarios |
| CN114765865A (zh) * | 2021-01-14 | 2022-07-19 | 索尼公司 | 用于无线通信的电子设备和方法、计算机可读存储介质 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6125596B1 (ja) * | 2015-11-05 | 2017-05-10 | 株式会社Nttドコモ | ユーザ端末、無線基地局及び無線通信方法 |
| RU2755825C1 (ru) * | 2018-04-04 | 2021-09-22 | Идак Холдингз, Инк. | Указание луча для технологии новой радиосвязи 5g |
| CN110475360B (zh) * | 2018-05-10 | 2023-05-02 | 华硕电脑股份有限公司 | 无线通信系统中上行链路传送的波束指示的方法和设备 |
| WO2019244207A1 (ja) * | 2018-06-18 | 2019-12-26 | 株式会社Nttドコモ | ユーザ端末及び無線通信方法 |
| CN110769502B (zh) * | 2018-07-25 | 2022-03-18 | 维沃移动通信有限公司 | 用于多波束发送上行信道的方法、终端设备和网络侧设备 |
| WO2020031353A1 (ja) | 2018-08-09 | 2020-02-13 | 株式会社Nttドコモ | ユーザ端末及び無線通信方法 |
| US11831438B2 (en) * | 2019-04-09 | 2023-11-28 | Samsung Electronics Co., Ltd | Method and apparatus for transmission and reception of HARQ-ACK feedback in wireless communication system |
| BR112022015390A2 (pt) * | 2020-02-05 | 2022-09-27 | Ericsson Telefon Ab L M | Métodos realizados por um dispositivo sem fio e por uma estação base, dispositivo sem fio, e, estação base |
| US12531610B2 (en) * | 2020-02-05 | 2026-01-20 | Lenovo (Singapore) Pte. Ltd. | Transmission skipping based on a beam correspondence |
| BR112022025278A2 (pt) * | 2020-07-17 | 2023-01-24 | Intel Corp | Aparelho de um ponto de transmissão-recepção e mídia de armazenamento legível por computador para relação espacial padrão para pucch e srs com multi-trp |
-
2020
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Non-Patent Citations (5)
| Title |
|---|
| 3GPP TS 36.300 |
| CATT: "Considerations on multi-TRP/panel transmission", 3GPP TSG RANWG1 #98B R1-1910349, 20 October 2019 (2019-10-20), XP051789153, Retrieved from the Internet <URL:https://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_98b/Docs/R1-1910349.zip> [retrieved on 20200914] * |
| NTT DOCOMO, INC.: "Enhancements on multi-TRP/panel transmission", 3GPPTSGRANWG1 #98B R1-1911184, 20 October 2019 (2019-10-20), XP051789956, Retrieved from the Internet <URL:https://www.3gpp.org/ftp/tsg_ran/WGl_RLl/TSGR1_98b/Docs/Rl-1911184.zip> [retrieved on 20200914] * |
| See also references of EP4114069A4 |
| ZTE, SANECHIPS: "Remaining details on codebook based UL transmission", 3GPP TSG RAN WG1 #91 R1-1719527, 1 December 2017 (2017-12-01), XP051369341, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1-91/Docs/Rl-1719527.zip> [retrieved on 20200914] * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2024536346A (ja) * | 2021-10-08 | 2024-10-04 | エルジー エレクトロニクス インコーポレイティド | 無線通信システムにおいて上りリンク送受信を行う方法及び装置 |
| JP7709606B2 (ja) | 2021-10-08 | 2025-07-16 | エルジー エレクトロニクス インコーポレイティド | 無線通信システムにおいて上りリンク送受信を行う方法及び装置 |
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| US20230086798A1 (en) | 2023-03-23 |
| EP4114069A4 (en) | 2023-10-25 |
| EP4114069A1 (en) | 2023-01-04 |
| CN115211206A (zh) | 2022-10-18 |
| CN115211206B (zh) | 2025-03-25 |
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| US12289721B2 (en) | 2025-04-29 |
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