WO2023188392A1 - 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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- WO2023188392A1 WO2023188392A1 PCT/JP2022/016881 JP2022016881W WO2023188392A1 WO 2023188392 A1 WO2023188392 A1 WO 2023188392A1 JP 2022016881 W JP2022016881 W JP 2022016881W WO 2023188392 A1 WO2023188392 A1 WO 2023188392A1
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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
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/28—Cell structures using beam steering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
- H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
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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
- H04W72/0446—Resources in time domain, e.g. slots or frames
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
- H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
Definitions
- the present disclosure relates to a terminal, a wireless communication method, and a base station in a next-generation mobile communication system.
- LTE Long Term Evolution
- 3GPP Rel. 10-14 LTE-Advanced (3GPP Rel. 10-14) has been specified for the purpose of further increasing capacity and sophistication of LTE (Third Generation Partnership Project (3GPP) Releases (Rel.) 8 and 9).
- LTE Long Term Evolution
- 5G 5th generation mobile communication system
- 5G+ plus
- NR New Radio
- E-UTRA Evolved Universal Terrestrial Radio Access
- E-UTRAN Evolved Universal Terrestrial Radio Access Network
- inter-cell mobility including non-serving cells, or multiple transmission/reception points (e.g. It is assumed that communication will be controlled based on inter-cell mobility using Multi-TRP (MTRP).
- MTRP Multi-TRP
- the problem is how to control UL transmission (for example, timing advance control, etc.). If UL transmission to each transmission/reception point is not appropriately controlled, the quality of communication using multiple transmission/reception points may deteriorate.
- one of the purposes of the present disclosure is to provide a terminal, a wireless communication method, and a base station that can appropriately control UL transmission for multiple TRPs.
- a terminal includes a control unit that determines a timing advance to be applied to a certain uplink transmission from a plurality of timing advances based on a specific index, and a control unit that determines a timing advance to be applied to a certain uplink transmission based on a specific index; and a transmitting unit that performs the transmission.
- UL transmission for multiple TRPs can be appropriately controlled.
- FIGS. 1A-1D are diagrams illustrating an example of a multi-TRP scenario.
- FIG. 2 is a diagram illustrating an example of a timing advance group (TAG) to which cells included in a cell group belong.
- FIGS. 3A and 3B are diagrams illustrating an example of postponement based on a TA gap in M-TRP PUSCH/PUCCH repetition.
- FIG. 4 is a diagram illustrating an example of application of TA to multi-panel simultaneous PUSCH/PUCCH transmission.
- FIG. 5 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment.
- FIG. 6 is a diagram illustrating an example of the configuration of a base station according to an embodiment.
- FIG. 7 is a diagram illustrating an example of the configuration of a user terminal according to an embodiment.
- FIG. 8 is a diagram illustrating an example of the hardware configuration of a base station and a user terminal according to an embodiment.
- FIG. 9 is a diagram illustrating an example of a vehicle according to an embodiment.
- TCI transmission configuration indication state
- the terminal user terminal
- User equipment Consideration is being given to controlling reception processing (e.g., at least one of reception, demapping, demodulation, and decoding) and transmission processing (e.g., at least one of transmission, mapping, precoding, modulation, and coding) in the UE) has been done.
- reception processing e.g., at least one of reception, demapping, demodulation, and decoding
- transmission processing e.g., at least one of transmission, mapping, precoding, modulation, and coding
- the TCI states may represent those that apply to downlink signals/channels. What corresponds to the TCI state applied to uplink signals/channels may be expressed as a spatial relation.
- the TCI state is information regarding quasi-co-location (QCL) of signals/channels, and may also be called spatial reception parameters, spatial relation information, etc.
- the TCI state may be set in the UE on a per-channel or per-signal basis.
- QCL is an index that indicates the statistical properties of a signal/channel. For example, when one signal/channel and another signal/channel have a QCL relationship, the Doppler shift, Doppler spread, and average delay are calculated between these different signals/channels. ), delay spread, and spatial parameters (e.g., spatial Rx parameters) can be assumed to be the same (QCL with respect to at least one of these). You may.
- the spatial reception parameters may correspond to the UE's reception beam (eg, reception analog beam), and the beam may be identified based on the spatial QCL.
- QCL or at least one element of QCL in the present disclosure may be read as sQCL (spatial QCL).
- QCL types A plurality of types (QCL types) may be defined for QCL.
- QCL types A-D may be provided with different parameters (or parameter sets) that can be assumed to be the same, and the parameters (which may be referred to as QCL parameters) are shown below: ⁇ QCL type A (QCL-A): Doppler shift, Doppler spread, average delay and delay spread, ⁇ QCL type B (QCL-B): Doppler shift and Doppler spread, ⁇ QCL type C (QCL-C): Doppler shift and average delay, - QCL type D (QCL-D): Spatial reception parameters.
- Control Resource Set CORESET
- channel or reference signal is in a particular QCL (e.g. QCL type D) relationship with another CORESET, channel or reference signal, It may also be called a QCL assumption.
- QCL Control Resource Set
- the UE may determine at least one of a transmit beam (Tx beam) and a receive beam (Rx beam) for the signal/channel based on the TCI state or QCL assumption of the signal/channel.
- Tx beam transmit beam
- Rx beam receive beam
- the TCI state may be, for example, information regarding the QCL between a target channel (in other words, a reference signal (RS) for the channel) and another signal (for example, another RS). .
- the TCI state may be set (indicated) by upper layer signaling, physical layer signaling, or a combination thereof.
- the upper layer signaling may be, for example, Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, etc., or a combination thereof.
- RRC Radio Resource Control
- MAC Medium Access Control
- the MAC signaling may use, for example, a MAC Control Element (MAC CE), a MAC Protocol Data Unit (PDU), or the like.
- Broadcast information includes, for example, a master information block (MIB), a system information block (SIB), a minimum system information (RMSI), and other system information ( Other System Information (OSI)) may also be used.
- MIB master information block
- SIB system information block
- RMSI minimum system information
- OSI Other System Information
- the physical layer signaling may be, for example, downlink control information (DCI).
- DCI downlink control information
- target channel/RS target channel/reference signal
- reference RS reference reference signal
- source RS source RS
- Channels for which TCI states or spatial relationships are set are, for example, the Physical Downlink Shared Channel (PDSCH), the Physical Downlink Control Channel (PDCCH), and the Uplink Shared Channel (PDSCH).
- the channel may be at least one of a Physical Uplink Shared Channel (PUSCH) and an uplink control channel (Physical Uplink Control Channel (PUCCH)).
- PUSCH Physical Uplink Shared Channel
- PUCCH Physical Uplink Control Channel
- the RS that has a QCL relationship with the channel is, for example, a synchronization signal block (SSB), a channel state information reference signal (CSI-RS), a measurement reference signal (Sounding Reference Signal (SRS)), tracking CSI-RS (also called Tracking Reference Signal (TRS)), QCL detection reference signal (also called QRS), demodulation reference signal (DeModulation Reference Signal (DMRS)), etc. It may be one.
- SSB synchronization signal block
- CSI-RS channel state information reference signal
- SRS Sounding Reference Signal
- TRS Tracking Reference Signal
- QRS QCL detection reference signal
- DMRS Demodulation reference signal
- the SSB is a signal block that includes at least one of a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH).
- PSS primary synchronization signal
- SSS secondary synchronization signal
- PBCH physical broadcast channel
- An RS of QCL type X in a TCI state may mean an RS that has a QCL type It's okay.
- Multi TRP In NR, one or more Transmission/Reception Points (TRPs) (Multi-TRPs (M-TRPs)) communicate with the UE using one or more panels (M-TRPs). DL transmission is currently being considered. Further, it is being considered that the UE performs UL transmission for one or more TRPs.
- TRPs Transmission/Reception Points
- M-TRPs Multi-TRPs
- DL transmission is currently being considered. Further, it is being considered that the UE performs UL transmission for one or more TRPs.
- multiple 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 (for example, PCI) or a virtual cell ID.
- FIGS. 1A-1D are diagrams illustrating an example of a multi-TRP scenario. In these examples, we assume, but are not limited to, that each TRP is capable of transmitting four different beams.
- FIG. 1A shows an example of a case (which may be called single mode, single TRP, etc.) in which only one TRP (TRP1 in this example) among multiple TRPs transmits to the UE.
- TRP1 transmits both a control signal (PDCCH) and a data signal (PDSCH) to the UE.
- PDCH control signal
- PDSCH data signal
- FIG. 1B shows a case in which only one TRP (TRP1 in this example) among multiple TRPs transmits a control signal to the UE, and the multiple TRP transmits a data signal (this may be called single master mode).
- TRP1 TRP1 in this example
- DCI downlink control information
- FIG. 1C shows an example of a case (which may be called master-slave mode) in which each of the multi-TRPs transmits a part of the control signal to the UE, and the multi-TRP transmits the data signal.
- Part 1 of the control signal (DCI) may be transmitted in TRP1
- part 2 of the control signal (DCI) may be transmitted in TRP2.
- Part 2 of the control signal may depend on part 1.
- the UE receives each PDSCH transmitted from the multi-TRP based on these DCI parts.
- FIG. 1D shows an example of a case in which each of the multi-TRPs transmits a separate control signal to the UE, and the multi-TRP transmits a data signal (which may be referred to as multi-master mode).
- a first control signal (DCI) may be transmitted in TRP1
- a second control signal (DCI) may be transmitted in TRP2.
- the UE receives each PDSCH transmitted from the multi-TRP based on these DCIs.
- the DCI is a single DCI (S-DCI, single PDCCH). Furthermore, when multiple PDSCHs from multiple TRPs as shown in Figure 1D are scheduled using multiple DCIs, these multiple DCIs are called multiple DCIs (M-DCIs, multiple PDCCHs). You may be
- Different transport blocks (TB)/code words (CW)/different layers may be transmitted from each TRP of the multi-TRP.
- the same TB/CW/layer may be transmitted from each TRP of a multi-TRP.
- Non-Coherent Joint Transmission is being considered as a form of multi-TRP transmission.
- TRP1 modulates and layer maps a first codeword to a first number of layers (eg, 2 layers) to transmit a first PDSCH with a first precoding.
- TRP2 also performs modulation mapping and layer mapping of the second codeword to a second number of layers (eg, 2 layers) and transmits the second PDSCH using a second precoding.
- multiple PDSCHs to be NCJTed may be defined as partially or completely overlapping in at least one of the time and frequency domains. That is, the first PDSCH from the first TRP and the second PDSCH from the second TRP may overlap in at least one of time and frequency resources.
- first PDSCH and second PDSCH may be assumed not to be in a quasi-co-location (QCL) relationship.
- Reception of multiple PDSCHs may also be interpreted as simultaneous reception of PDSCHs that are not of a certain QCL type (for example, QCL type D).
- PDSCH transport block (TB) or codeword (CW) repetition across multiple TRPs
- repetition schemes URLLC schemes, e.g. Schemes 1, 2a, 2b, 3, 4
- SDM space division multiplexed
- FDM frequency division multiplexed
- RV redundancy version
- the RVs may be the same or different for multiple TRPs.
- multiple PDSCHs from multiple TRPs are time division multiplexed (TDM).
- TDM time division multiplexed
- multiple PDSCHs from multiple TRPs are transmitted within one slot.
- multiple PDSCHs from multiple TRPs are transmitted in different slots.
- NCJTs using multiple TRPs/panels may use higher ranks.
- single DCI single PDCCH, e.g., Figure 1B
- multi-DCI multiple PDCCH, e.g. , FIG. 1D
- the maximum number of TRPs may be two for both single DCI and multi-DCI.
- TCI expansion is being considered.
- Each TCI code point within the DCI may correspond to one or two TCI states.
- the TCI field size is Rel. It may be the same as No. 15.
- TRPInfo TRP information
- a CORESET pool index is set for each CORESET.
- SRI SRS Resource Indicator
- TPMI Transmitted Precoding Matrix Indicator
- the UE may determine the precoder for PUSCH transmission based on the SRI, Transmitted Rank Indicator (TRI), and TPMI.
- the UE may determine the precoder for PUSCH transmission based on the SRI for non-codebook-based transmission.
- the SRI may be specified to the UE by the DCI, or may be given by upper layer parameters.
- a single DCI indicates multiple SRIs/TPMIs
- the following options 1 or 2 are possible: - Option 1: SRI/TPMI (values) for multiple (e.g., two) TRPs are indicated using a field indicating multiple (e.g., two) SRI/TPMIs; - Option 2: A field indicating one SRI/TPMI is indicated, and code points corresponding to multiple (eg, two) SRI/TPMI values are set in the field indicating the SRI/TPMI.
- each code point of multiple SRI/TPMI fields may correspond to one TPMI value.
- the correspondence (association) between the SRI/TPMI field and the SRI/TPMI value may be defined in advance in the specifications. Furthermore, the correspondence (association) between the SRI/TPMI field and the SRI/TPMI value is determined by Rel. 16 may be used, or the correspondence specified in Rel. 17 or later may be used. The correspondence between the SRI/TPMI field and the SRI/TPMI value may be different for each of the plurality of SRI/TPMI fields.
- a code point to which one SRI/TPMI field is indicated may correspond to multiple (eg, two) SRI/TPMI values.
- the correspondence (association) between the SRI/TPMI field and the SRI/TPMI value may be defined in advance in the specifications, or may be notified/set/activated by RRC signaling/MAC CE.
- single PUSCH transmission/repetitive PUSCH transmission using a single TRP (STRP) and repeated PUSCH transmission using multiple TRPs (MTRP) are dynamically controlled by DCI. It is being considered that the system will be instructed/switched to The dynamic switch is Rel. Specific fields included in the DCI defined up to Rel.16 may be used, and Rel. Specific fields defined in 17 and later (for example, fields for specifying STRP or MTRP operation) may be used.
- a "dynamic switch” in the present disclosure may mean a “switch that uses at least one of upper layer signaling and physical layer signaling.” Further, the term “switch” in the present disclosure may be interchanged with switching, change, changing, application, instruction, setting, and the like.
- TRPs Transmission Advance Group
- the distances between the UE and each TRP may be different.
- Multiple TRPs may be included in the same cell (eg, serving cell).
- a certain TRP may correspond to a serving cell, and other TRPs may correspond to non-serving cells. In this case, it is also assumed that the distances between each TRP and the UE are different.
- the transmission timing of an UL (Uplink) channel and/or a UL signal (UL channel/signal) is adjusted by a timing advance (TA).
- TA timing advance
- the reception timing of UL channels/signals from different UEs is adjusted on the radio base station (TRP: Transmission and Reception Point, gNB: gNodeB, etc.) side.
- the UE may control the timing of UL transmission by applying timing advances (multiple timing advances) to each timing advance group (TAG) set in advance.
- TAG timing advance group
- TAGs support timing advance groups classified by transmission timing.
- the UE may control the UL transmission timing in each TAG assuming that the same TA offset (or TA value) is applied for each TAG. That is, the TA offset may be set independently for each TAG.
- the UE When multiple timing advance is applied, the UE independently adjusts the transmission timing of cells belonging to each TAG, so that even when multiple cells are used, the radio base station receives uplink signal reception timing from the UE. can be matched.
- the TAG (for example, serving cells belonging to the same TAG) may be configured by upper layer parameters.
- the same timing advance value may be applied to serving cells belonging to the same TAG.
- a timing advance group including the MAC entity SpCell may be referred to as a primary timing advance group (PTAG), and other TAGs may be referred to as a secondary timing advance group (STAG).
- PTAG primary timing advance group
- STAG secondary timing advance group
- FIG. 2 shows a case where three TAGs are set for a cell group including SpCell and SCells #1 to #4.
- SpCell and SCell #1 belong to the first TAG (PTAG or TAG #0)
- SCell #2 and SCell #3 belong to the second TAG (TAG #1)
- SCell #4 belongs to the third TAG. This shows the case where it belongs to TAG (TAG #2).
- a timing advance command may be notified to the UE using a MAC control element (for example, MAC CE).
- the TA command is a command indicating an uplink channel transmission timing value, and is included in the MAC control element.
- the TA command is signaled from the radio base station to the UE at the MAC layer.
- the UE controls a predetermined timer (eg, TA timer) based on reception of the TA command.
- the MAC CE for timing advance commands may include a field for timing advance group index (for example, TAG ID) and a field for timing advance commands.
- TAG-IDs are set for one or more TRPs corresponding to a certain cell (or CC).
- a case is also assumed in which different TRPs corresponding to a certain cell share a common TAG.
- a case in which the MAC CE for the TA command is applied to only one TRP, or a case in which the MAC CE for the TA command is applied to multiple TRPs is also assumed.
- UL transmission is controlled based on timing advance for the serving cell (or the TRP of the serving cell) and the non-serving cell (or the TRP of the non-serving cell).
- the serving cell TRP may be referred to as a primary TRP (eg, pTRP).
- the TRP of a non-serving cell may be referred to as an additional TRP (aTRP).
- TAG ID is set/defined for each cell (or CC) included in a cell group.
- timing advance when one or more TRP/PCI is supported/set in a cell, how to control the application of timing advance becomes a problem. For example, Rel. In MIMO 18 and later, it is assumed that two timing advances (TA) for two TRPs will be supported in multi-TRP operation using multi-DCI, but how will one decide which TA to apply to a certain UL transmission? No progress has been made in considering whether this is the case. Unless this is clarified, increases in communication throughput and improvements in communication quality may be inhibited.
- the present inventors came up with a method for appropriately determining a TA for UL transmission from a plurality of TAs (for example, TAs corresponding to different TRPs).
- A/B and “at least one of A and B” may be read interchangeably.
- activate, deactivate, indicate, select, configure, update, determine, etc. may be read interchangeably.
- RRC RRC parameters
- RRC messages RRC signaling
- IEs information elements
- MAC CE update command
- activation/deactivation command may be read interchangeably.
- support control
- control control
- controllable controllable
- operte operte
- capable of operating may be used interchangeably.
- fields, parameters, information elements (IEs), etc. may be read interchangeably.
- a panel, a UE panel, a panel group, a beam, a beam group, a precoder, an uplink (UL) transmitting entity, a transmission/reception point (TRP), a base station, and a spatial relation information (SRI) are described.
- SRS resource indicator SRI
- control resource set CONtrol REsource SET (CORESET)
- Physical Downlink Shared Channel PDSCH
- codeword CW
- Transport Block Transport Block
- RS reference signal
- antenna antenna element, layer, transmission, port, antenna port (for example, demodulation reference signal (DMRS) port),
- Antenna port group e.g. DMRS port group
- group e.g.
- CDM Code Division Multiplexing
- reference signal group reference signal group
- CORESET group Physical Uplink Control Channel (PUCCH) group
- PUCCH resource group resource (e.g. reference signal resource, SRS resource), resource set (e.g. reference signal resource set), CORESET pool, downlink Transmission Configuration Indication state (TCI state) (DL TCI state), uplink TCI (UL TCI state), unified TCI state, common TCI state, quasi-co-location (QCL), QCL assumption, etc.
- TCI state downlink Transmission Configuration Indication state
- DL TCI state uplink TCI
- UL TCI state uplink TCI
- unified TCI state common TCI state
- QCL quasi-co-location
- QCL assumption QCL assumption
- spatial relationship information identifier (TCI status ID) and the spatial relationship information (TCI status) may be read interchangeably.
- “Spatial relationship information” may be interchangeably read as “a set of spatial relationship information”, “one or more pieces of spatial relationship information”, etc. TCI status and TCI may be read interchangeably.
- index, ID, indicator, and resource ID may be read interchangeably.
- sequences, lists, sets, groups, groups, clusters, subsets, etc. may be used interchangeably.
- TRP index CORESET pool index (CORESETPoolIndex), pool index, group index, etc. may be read interchangeably.
- a single PDCCH may be referred to as a PDCCH (DCI) of a first scheduling type (for example, scheduling type A (or type 1)).
- the multi-PDCCH may be referred to as a PDCCH (DCI) of a second scheduling type (for example, scheduling type B (or type 2)).
- the i-th TRP may mean the i-th TCI state, the i-th CDM group, etc. (i is an integer).
- multi-TRP MTRP, M-TRP
- multi-TRP system multi-TRP transmission
- multi-PDSCH multi-PDSCH
- a single DCI a single PDCCH, a multi-TRP system based on a single DCI, sDCI-based MTRP, scheduling multiple PUSCHs (corresponding to different SRIs) by one DCI, sDCI-based MTRP transmission, at least Activating two TCI states on one TCI code point may be read interchangeably.
- multi-DCI multi-PDCCH
- multi-TRP system based on multi-DCI
- mDCI-based MTRP mDCI-based MTRP transmission
- multi-DCI is used for MTRP
- the iterations of this disclosure include MTRP-based iterations, Rel. 17 repetitions, repetitions applying different spatial relationships, repeated PUSCHs, repeated PUCCHs, repeated transmissions, etc. may be interchanged with each other.
- the repeated transmission in the following embodiments may correspond to at least one of repeated transmission type A, repeated transmission type B, and other repeated transmission types.
- repeated PUSCH the same codeword/transport block may be transmitted in each PUSCH (each repetition).
- a repeated PUSCH may be interchanged with multiple PUSCHs having the same content (eg, data/codeword/transport block).
- the first TRP and the second TRP are a first PUSCH and a second PUSCH, a first PUSCH transmission opportunity and a second PUSCH transmission opportunity, a first SRI and a second SRI, etc. may be read interchangeably.
- MTRP PUSCH repetition in this disclosure includes two PUCCH repetitions to two TRPs, two PUSCH repetitions using two SRIs, two PUSCH repetitions using two sets of power control parameters (power control parameters will be described later), They may also be read interchangeably.
- STRP PUSCH repetition may mean repeated transmission of multiple PUSCHs transmitted using one (same) SRI/power control parameter set/beam/precoder. Note that a single transmission may mean PUSCH transmission transmitted using one SRI/power control parameter set/beam/precoder.
- PUSCH repetition/PUSCH transmission to TRP1 may mean PUSCH repetition/PUSCH transmission using the first SRI (or SRI field)/first power control parameter set.
- PUSCH repetition/PUSCH transmission to TRP2 may mean PUSCH repetition/PUSCH transmission using a second SRI (or SRI field)/second power control parameter set.
- the power control parameters include P CMAX,f,c , Maximum Power Reduction (MPR), P-MPR, Additional maximum power reduction (A-MPR), ⁇ Tc, P 0 , alpha, It may be at least one of a path loss reference signal (PL-RS) and a closed loop index (l).
- a power control parameter set may refer to a set that includes one or more power control parameters.
- repeated transmission of PUSCH using multiple TRPs includes M-TRP PUSCH, MTRP PUSCH repetition, PUSCH transmission using multiple TRPs, repeated transmission of PUSCH for multiple TRPs, and PUSCH over multiple TRPs.
- repeated PUSCH over multiple TRPs simply repeated PUSCH, repeated transmission, multiple PUSCH transmissions, PUSCH transmission using multiple SRIs, M-TRP PUSCH, etc.
- PUSCH transmission using a single TRP includes S-TRP PUSCH, STRP PUSCH repetition, PUSCH transmission using a single TRP, repeated transmission of PUSCH for a single TRP, PUSCH over a single TRP, single may also be referred to as repeated PUSCH over a TRP, a single PUSCH transmission for a single TRP, simply a single PUSCH transmission, a PUSCH transmission in a single TRP, a PUSCH transmission with a single SRI, etc.
- “plurality” and “two” may be read interchangeably.
- “TAG” and “TAG ID” may be read interchangeably.
- “cell”, “CC”, and “carrier” may be read interchangeably.
- inter-cell mobility for example, L1/L2 inter-cell mobility
- communication control other than inter-cell mobility
- the TRP ID may be replaced with the CORESET pool index (CORESETPoolIndex) or with a new ID related to the TA.
- the new ID for the TA may have different values to indicate that a different TA is applied to the UL transmission.
- the first embodiment relates to determining a TA to be applied (utilized) to UL transmission.
- the UE determines the TA to be applied to the transmission of the channel/signal based on the TRP ID, and transmits the channel/signal. It may also be possible to adjust (control, determine) uplink timing for.
- the TA corresponding to the first TRP ID may be controlled/managed separately from the TA corresponding to the second TRP ID.
- the TA command for the first TRP ID may not affect the TA corresponding to the second TRP ID, or may affect them in common.
- PUSCH which may also be called dynamic PUSCH, dynamic scheduling PUSCH, etc.
- DCI format PUSCH transmission without dynamic grant
- a figured grant PUSCH which may also be called a configured grant (CG) PUSCH
- PUCCH Physical Uplink Control Channel
- SRS SRS
- the TRP ID associated with a dynamic PUSCH may be at least one of the following: ⁇ Related to PDCCH/CORESET that transmits the DCI (scheduling DCI) that schedules the dynamic PUSCH, ⁇ Specified in the scheduling DCI, - related to the TCI state specified for the dynamic PUSCH, ⁇ Related to the SRI specified for the above dynamic PUSCH, - Relates to the CB/NCB SRS resource (or CB/NCB SRS resource set) specified for the dynamic PUSCH.
- the PDCCH/CORESET that transmits the scheduling DCI may be called a scheduling PDCCH/CORESET.
- each of the above elements and the TRP ID may be defined in advance in the standard, or may be set/activated/designated by RRC/MAC CE/DCI.
- the above-mentioned PDCCH/CORESET/TCI state/SRI/SRS resource/SRS resource set may be configured/activated/designated by RRC/MAC CE/DCI.
- the TRP ID related to the dynamic PUSCH is It may be associated with at least one of the resource sets.
- the TRP ID associated with the dynamic PUSCH is at least one of the first TCI state and the second TCI state of the two TCI states. May be related to.
- the TRP ID associated with the configured grant PUSCH may be at least one of the following: ⁇ Related to configured grant settings, - If the above configured grant PUSCH is a type 2 configured grant PUSCH, related to the PDCCH/CORESET that transmits the activation DCI, ⁇ Specified in the activation DCI, - related to the TCI state specified for the configured grant PUSCH, ⁇ Related to the SRI specified for the above configured grant PUSCH, - related to the CB/NCB SRS resource (or CB/NCB SRS resource set) specified for the configured grant PUSCH, - It is predefined/fixed.
- each of the above elements and the TRP ID may be defined in advance in the standard, or may be set/activated/designated by RRC/MAC CE/DCI.
- the TRP ID related to the configured grant settings may be set in the configured grant settings (RRC information element ConfiguredGrantConfig), or may be related to the configured grant settings index (RRC parameter configuredGrantConfigIndex), for example. .
- the configured grant setting/PDCCH/CORESET/TCI state/SRI/SRS resource/SRS resource set described above may be configured/activated/designated by RRC/MAC CE/DCI.
- the TRP ID related to the configured grant PUSCH is specified in the above multiple TCI states/SRI/ It may be associated with at least one of SRS resources/SRS resource sets.
- the above predefined/fixed TRP ID may be a specific value (for example, 0). In this case, it may be assumed that for configured grant PUSCH, TA per TRP is not supported.
- the TRP ID associated with PUCCH may be at least one of the following: - When a PUCCH resource/PUCCH transmission is specified/triggered by a DCI, related to the PDCCH/CORESET/search space set that transmits the DCI, ⁇ Specified in the above DCI, - Related to PUCCH resources/PUCCH resource groups configured/activated by RRC/MAC CE, - related to the TCI state specified for the above PUCCH, ⁇ Related to the UCI transmitted on the above PUCCH, - It is predefined/fixed.
- each of the above elements and the TRP ID may be defined in advance in the standard, or may be set/activated/designated by RRC/MAC CE/DCI.
- the above-mentioned PDCCH/CORESET/search space set/TCI state may be set/activated/designated by RRC/MAC CE/DCI.
- the plurality of PUCCH resources/PUCCH resource groups configured/activated may be associated with different TRPs.
- two PUCCH resource groups may be associated with different TRPs and may be applied with different TAs.
- the TRP ID associated with the PUCCH may be associated with at least one of the multiple TCI states.
- the above-mentioned "related to the UCI” may be read as being related to the type of UCI (which may be referred to as a UCI type), or may be read as being related to the value of the UCI.
- the TRP ID related to the PUCCH may be related to the HARQ-ACK transmitted on the PUCCH, the SR transmitted on the PUCCH, or the CSI report transmitted on the PUCCH. May be related to.
- the TRP ID When the TRP ID is related to HARQ-ACK, the TRP ID may be related to the resource for the HARQ-ACK, the PDSCH corresponding to the HARQ-ACK, or the HARQ-ACK.
- - May be related to the codebook of the ACK (e.g. codebook type, codebook size), may be related to the feedback mode (e.g. joint or separate) for the HARQ-ACK; It may be related to the value of HARQ-ACK.
- the TRP ID may be related to the resource for the SR, or may be related to the logical channel/logical channel group (or priority for these) corresponding to the SR. It may also be related to the value of the SR.
- the TRP ID may be associated with the resource for the CSI report and the time domain behavior (e.g., periodic, semi-periodic, etc.) of the CSI report. Persistent, aperiodic), or CSI included in the CSI report (e.g. CSI Part 1/2, PMI, RI, L1-RSRP, L1-SINR, etc.) .
- the above predefined/fixed TRP ID may be a specific value (for example, 0). In this case, it may be assumed that TA per TRP is not supported for PUCCH.
- association (correspondence) between PUCCH and TRP ID may differ depending on the PUCCH format.
- the association (correspondence) between PUCCH and TRP ID may be different for PUCCH of different UCI types (in other words, PUCCH for the first UCI type and PUCCH for the second UCI type, (The association between PUCCH and TRP ID may be different).
- the TRP ID associated with the SRS may be at least one of the following: - If an SRS resource/SRS transmission is specified/triggered by a DCI (in other words, in the case of A-SRS), related to the PDCCH/CORESET/search space set that transmits the DCI, ⁇ Specified in the above DCI, - related to SRS resources/SRS resource sets configured/activated by RRC/MAC CE; - related to the TCI state specified for the above SRS, - It is predefined/fixed.
- each of the above elements and the TRP ID may be defined in advance in the standard, or may be set/activated/designated by RRC/MAC CE/DCI.
- the above-mentioned PDCCH/CORESET/search space set/TCI state may be set/activated/designated by RRC/MAC CE/DCI.
- the plurality of SRS resources/SRS resource sets configured/activated may be associated with different TRPs.
- two SRS resource sets may be associated with different TRPs and may be applied with different TAs.
- the first SRS resource set e.g., the SRS resource set with a smaller ID
- a second SRS resource set e.g., an SRS resource set with a larger ID
- the TRP ID associated with the SRS may be associated with at least one of the multiple TCI states.
- the above predefined/fixed TRP ID may be a specific value (for example, 0). In this case, it may be assumed that for SRS, TA per TRP is not supported.
- association between the SRS and the TRP ID may differ depending on the usage of the SRS resource set corresponding to the SRS. For example, different TRP ID correspondences may be used for each (or several) of codebook, non-codebook, beam management, antenna switching, and positioning applications.
- association between the SRS and the TRP ID may differ depending on the time domain behavior (for example, periodic, semi-persistent, aperiodic) of the SRS resource set corresponding to the SRS.
- the UE can appropriately determine the TA to be applied (used) to UL transmission.
- the second embodiment relates to TA determination for various UL transmission schemes.
- the TA determination shown in the first embodiment may be applied to M-DCI M-TRP PUSCH repetition, or may be applied to other UL transmission schemes.
- S-DCI M-TRP PUSCH repetition may mean that at least one of the following is satisfied: ⁇ PUSCH repetition type A or B is set, ⁇ The number of repetitions greater than 1 is set/specified, - Two SRS resource sets (for example, for a certain application (codebook/non-codebook)) are set, - The DCI contains two SRI fields (or two TPMIs are specified by the DCI), ⁇ Two power control parameter sets are set. - Two TCI states (spatial relationships) are specified.
- the above first embodiment may be applied to S-DCI M-TRP PUSCH repetition.
- Two TAs may be used for PUSCH repetition for two TRPs.
- PUSCH repetition to different TRPs may mean PUSCH repetition associated with different SRS resource sets/SRI/TPMI/spatial relationships/power control parameter sets/TCI states.
- M-TRP PUCCH repetition (or M-TRP PUCCH repetition being enabled) may mean that at least one of the following is satisfied: ⁇ The number of repetitions greater than 1 is set/specified, - Two TCI states (spatial relationships) are set/activated/indicated for the PUCCH resource, - Two power control parameter sets are configured/activated/indicated on the PUCCH resource.
- the above first embodiment may be applied to M-TRP PUCCH repetition.
- Two TAs may be used for PUCCH repetition for two TRPs.
- PUCCH repetition to different TRPs may mean PUCCH repetition associated with different spatial relationships/power control parameter sets/TCI states.
- Gaps may be defined for transmissions to which different TAs apply.
- the gap may indicate the time it takes for the UE to switch from applying one TA to applying another TA.
- This gap (length) may be called a TA switching gap, TA gap, etc.
- the TA gap may be 0 symbols, 1 symbol or more, or may be expressed in a certain unit (for example, microseconds).
- the TA gap may be defined in advance in the standard, may be set by upper layer signaling, or may be determined based on the UE capabilities.
- the TA gap may have the same value for all TA switching, or different values may be used for some TA switching. For example, switching from a first TA value to a second TA value (smaller or larger than the first TA value) will result in a smaller/larger TA gap than switching from the second TA value to the first TA value. It may be.
- the UE may not expect to transmit PUSCH/PUCCH in TA gaps (or be scheduled for PUSCH/PUCCH in TA gaps).
- the UE may note that the PUSCH/PUCCH in the TA gap may be punctured or postponed (or delayed). In other words, if there is not more than a TA gap between the first PUSCH/PUCCH repetition and the second PUSCH/PUCCH repetition, the UE punctures some or all of the second PUSCH/PUCCH repetition. (does not need to be transmitted), and the start of transmission of the second PUSCH/PUCCH repetition may be postponed (e.g., at a timing/slot that is more than a TA gap from the end of the first PUSCH/PUCCH repetition. , start transmitting the second PUSCH/PUCCH repetition).
- the UE When puncturing a part of the second PUSCH/PUCCH repetition, the UE punctures the second PUSCH/PUCCH repetition before the TA gap elapses from the end of the first PUSCH/PUCCH repetition, and PUSCH/PUCCH repetition may be transmitted.
- the start or end timing of the postponed second PUSCH/PUCCH repetition is different from the start or end timing of the original (scheduled) second PUSCH/PUCCH repetition.
- at least one of the second PUSCH/PUCCH repetition or the subsequent (third, fourth, . . . ) PUSCH/PUCCH repetitions may be punctured.
- FIGS. 3A and 3B are diagrams illustrating an example of postponement based on TA gaps in M-TRP PUSCH/PUCCH repetition.
- the UE transmits PUSCH/PUCCH with a repetition number of 4 (repetition #1-#4) while switching the TA. Iterations #1 and #3 correspond to the first TA, and iterations #2 and #4 correspond to the second TA.
- FIG. 3B corresponds to the case where TA gap>0.
- the start of transmission is postponed in repetitions #2, #3, and #4 so that transmission is started with a TA gap from the end of the previous repetition.
- 1 CW/TB non-coherent multi-panel transmission also referred to as 1 CW/TB non-coherent multi-panel transmission
- 1 CW/TB first CW/TB
- K ⁇ L K layer
- LK PUSCH
- Another 1 CW/TB second CW/TB
- - one TB is repeatedly transmitted twice using different beams in the same time-frequency resource (scheme A, may be called SFN repetition, etc.);
- - one TB is repeatedly transmitted twice using different beams in different frequency resources (e.g.
- different PRBs may be referred to as scheme B, FDM repetition, etc.
- one TB is transmitted using different beams in different frequency resources (e.g. different PRBs) (may be referred to as scheme B1, FDM transmission, etc.);
- - in one PUSCH one TB is transmitted, where different layers of the PUSCH are transmitted using different beams (may be called scheme C, scheme C1, multiplexing, etc.);
- - In one PUSCH two TBs are transmitted, where different TBs are transmitted using different beams (may be called scheme C, scheme C2, multiplexing, etc.).
- the first embodiment described above may be applied to multi-panel simultaneous PUSCH transmission.
- Two TAs may be used for PUSCH transmission for two TRPs/with two panels.
- PUSCH transmissions to different TRPs/with different panels means PUSCH transmissions associated with different SRS resource sets/SRI/TPMI/spatial relationships/power control parameter sets/TCI states/panels/layers/layer groups/CWs. Good too.
- SRS resource set with the i-th smallest/largest ID the i-th SRI
- TPMI TPMI
- the i-th power control parameter set the i-th TCI state
- the i-th panel the i-th layer
- the i-th layer group the i-th layer group
- the i-th TA has the i-th TRP, the
- multi-panel simultaneous PUCCH transmission may mean that at least one of the following is satisfied: - In the same time-frequency resource, one PUCCH (UCI) is repeatedly transmitted twice using different beams (scheme 1, may be called SFN repetition, etc.), - One PUCCH (UCI) is repeatedly transmitted twice using different beams in different frequency resources (e.g. different PRBs) (scheme 2, may be called FDM repetition, etc.), - One PUCCH (UCI) is transmitted using different beams in different frequency resources (e.g.
- - Two PUCCHs are transmitted using different beams in overlapping time resources (scheme 3, may be referred to as multiplexing, etc.).
- the first embodiment described above may be applied to multi-panel simultaneous PUCCH transmission.
- Two TAs may be used for PUCCH transmission for two TRPs/with two panels.
- PUCCH transmissions to different TRPs/using different panels may imply PUCCH transmissions associated with different spatial relationships/power control parameter sets/TCI states/panels/layers/layer groups.
- FIG. 4 is a diagram illustrating an example of application of TA to multi-panel simultaneous PUSCH/PUCCH transmission.
- the UE transmits PUSCH/PUCCH using different beams from different panels and applying different TAs.
- the UE can appropriately determine the TA to be applied (used) to UL transmission of various transmission schemes.
- ⁇ Supplement> if an RRC parameter is configured that enables TRP-specific TA adjustment for a UL transmission (e.g., PUSCH, SRS, PUCCH), the UE specifies the Control based on TA/TAG may also be performed.
- RRC parameter e.g., PUSCH, SRS, PUCCH
- the term "panel" may be interchanged with a UE capability value, a set of UE capability values, or the like.
- transmission using the panel may be interchanged with transmission based on (a set of) UE capability values.
- the particular UE capability may indicate at least one of the following: - supporting processing/operation/control/information for at least one of the above embodiments; - supporting different TAs for the two TRPs of the serving cell; - supporting different TAs for two TRPs for PUSCH; - supporting different TAs for two TRPs for PUCCH; Supporting different TAs for two TRPs for SRS; maximum number of (different) TA/TAGs to support across one or all serving cells; - Supporting different TAs for M-DCI M-TRP; - Supporting different TAs for S-DCI M-TRP.
- the above-mentioned specific UE capability may be a capability that is applied across all frequencies (commonly regardless of frequency), or may be a capability for each frequency (for example, cell, band, BWP). , the capability may be for each frequency range (for example, FR1, FR2, FR3, FR4, FR5), or the capability may be for each subcarrier interval.
- the above-mentioned specific UE capability may be a capability that is applied across all duplex schemes (commonly regardless of the duplex scheme), or may be a capability that is applied across all duplex schemes (for example, Time Division Duplex).
- the capability may be for each frequency division duplex (TDD)) or frequency division duplex (FDD)).
- the UE is configured with specific information related to the embodiment described above by upper layer signaling.
- the specific information may include configuration information for PUSCH/PUCCH with multiple TAs, RRC parameters to enable TRP-specific TA adjustment, It may be any RRC parameter.
- the UE does not support at least one of the specific UE capabilities or is not configured with the specific information, for example, Rel. 15/16 operations may be applied.
- wireless communication system The configuration of a wireless communication system according to an embodiment of the present disclosure will be described below.
- communication is performed using any one of the wireless communication methods according to the above-described embodiments of the present disclosure or a combination thereof.
- FIG. 5 is a diagram illustrating 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 the Third Generation Partnership Project (3GPP). .
- LTE Long Term Evolution
- 5G NR 5th generation mobile communication system New Radio
- 3GPP Third Generation Partnership Project
- the wireless communication system 1 may support dual connectivity between multiple Radio Access Technologies (RATs) (Multi-RAT Dual Connectivity (MR-DC)).
- MR-DC has 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 -UTRA Dual Connectivity (NE-DC)).
- RATs Radio Access Technologies
- MR-DC has 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 -UTRA Dual Connectivity (NE-DC)).
- E-UTRA Evolved Universal Terrestrial Radio Access
- EN-DC E-UTRA-NR Dual Connectivity
- NE-DC NR-E -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 NR base station (gNB) is the MN
- the LTE (E-UTRA) base station (eNB) is the SN.
- the wireless communication system 1 has dual connectivity between multiple base stations within the same RAT (for example, dual connectivity (NR-NR Dual Connectivity (NN-DC) where both the MN and SN are NR base stations (gNB)). )) may be supported.
- dual connectivity NR-NR Dual Connectivity (NN-DC) where both the MN and SN are NR base stations (gNB)).
- the wireless communication system 1 includes a base station 11 that forms a macro cell C1 with relatively wide coverage, and base stations 12 (12a-12c) that are located within the macro cell C1 and form a small cell C2 that is narrower than the macro cell C1. You may prepare.
- User terminal 20 may be located within at least one cell. The arrangement, number, etc. of each cell and user terminal 20 are not limited to the embodiment shown in the figure. Hereinafter, when base stations 11 and 12 are not distinguished, they will be collectively referred to as 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 (CA) using a plurality of component carriers (CC) and dual connectivity (DC).
- CA carrier aggregation
- CC component carriers
- DC dual connectivity
- Each CC may be included in at least one of a first frequency band (Frequency Range 1 (FR1)) and a second frequency band (Frequency Range 2 (FR2)).
- Macro cell C1 may be included in FR1
- small cell C2 may be included in FR2.
- FR1 may be a frequency band below 6 GHz (sub-6 GHz)
- FR2 may be a frequency band above 24 GHz (above-24 GHz). Note that the frequency bands and definitions of FR1 and FR2 are not limited to these, and FR1 may correspond to a higher frequency band than FR2, for example.
- the user terminal 20 may communicate 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, X2 interface, etc. compliant with Common Public Radio Interface (CPRI)) or wirelessly (for example, NR communication).
- wire for example, optical fiber, X2 interface, etc. compliant with Common Public Radio Interface (CPRI)
- NR communication for example, when NR communication is used as a backhaul between base stations 11 and 12, base station 11, which is an upper station, is an Integrated Access Backhaul (IAB) donor, and base station 12, which is a relay station, is an IAB donor. May also be called a node.
- IAB Integrated Access Backhaul
- 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, for example, at least one of Evolved Packet Core (EPC), 5G Core Network (5GCN), Next Generation Core (NGC), and the like.
- EPC Evolved Packet Core
- 5GCN 5G Core Network
- NGC Next Generation Core
- the user terminal 20 may be a terminal compatible with at least one of communication systems such as LTE, LTE-A, and 5G.
- an orthogonal frequency division multiplexing (OFDM)-based wireless access method may be used.
- OFDM orthogonal frequency division multiplexing
- 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
- a wireless access method may also be called a waveform.
- other wireless access methods for example, other single carrier transmission methods, other multicarrier transmission methods
- the UL and DL radio access methods may be used as the UL and DL radio access methods.
- the downlink channels include a physical downlink shared channel (PDSCH) shared by each user terminal 20, a broadcast channel (physical broadcast channel (PBCH)), and a downlink control channel (physical downlink control). Channel (PDCCH)) or the like may be used.
- PDSCH physical downlink shared channel
- PBCH physical broadcast channel
- PDCCH downlink control channel
- uplink channels include a physical uplink shared channel (PUSCH) shared by each user terminal 20, an uplink control channel (PUCCH), and a random access channel. (Physical Random Access Channel (PRACH)) or the like may be used.
- PUSCH physical uplink shared channel
- PUCCH uplink control channel
- PRACH Physical Random Access Channel
- User data, upper layer control information, System Information Block (SIB), etc. are transmitted by the PDSCH.
- User data, upper layer control information, etc. may be transmitted by PUSCH.
- a Master Information Block (MIB) may be transmitted via the PBCH.
- Lower layer control information may be transmitted by PDCCH.
- the lower layer control information may include, for example, downlink control information (DCI) that includes scheduling information for at least one of PDSCH and PUSCH.
- DCI downlink control information
- DCI that schedules PDSCH may be called DL assignment, DL DCI, etc.
- DCI that schedules PUSCH may be called UL grant, UL DCI, etc.
- PDSCH may be replaced with DL data
- PUSCH may be replaced with UL data.
- a control resource set (CONtrol REsource SET (CORESET)) and a search space may be used to detect the PDCCH.
- CORESET corresponds to a resource for searching DCI.
- the search space corresponds to a search area and a search method for PDCCH candidates (PDCCH candidates).
- PDCCH candidates PDCCH candidates
- One CORESET may be associated with one or more search spaces. The UE may monitor the CORESET associated with a certain search space based on the search space configuration.
- One search space may correspond to PDCCH candidates corresponding to one or more aggregation levels.
- One or more search spaces may be referred to as a search space set. Note that “search space”, “search space set”, “search space setting”, “search space set setting”, “CORESET”, “CORESET setting”, etc. in the present disclosure may be read interchangeably.
- the PUCCH allows channel state information (CSI), delivery confirmation information (for example, may be called Hybrid Automatic Repeat Request ACKnowledgement (HARQ-ACK), ACK/NACK, etc.), and scheduling request ( Uplink Control Information (UCI) including at least one of SR)) may be transmitted.
- CSI channel state information
- delivery confirmation information for example, may be called Hybrid Automatic Repeat Request ACKnowledgement (HARQ-ACK), ACK/NACK, etc.
- UCI Uplink Control Information including at least one of SR
- a random access preamble for establishing a connection with a cell may be transmitted by PRACH.
- downlinks, uplinks, etc. may be expressed without adding "link”.
- various channels may be expressed without adding "Physical” at the beginning.
- a synchronization signal (SS), a downlink reference signal (DL-RS), and the like may be transmitted.
- the DL-RS includes a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), and a demodulation reference signal (DeModulation).
- Reference Signal (DMRS)), Positioning Reference Signal (PRS), Phase Tracking Reference Signal (PTRS), etc. may be transmitted.
- the synchronization signal may be, for example, at least one of a primary synchronization signal (PSS) and a secondary synchronization signal (SSS).
- a signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may be called an SS/PBCH block, SS Block (SSB), etc. Note that SS, SSB, etc. may also be called reference signals.
- DMRS Downlink Reference Signal
- UL-RS uplink reference signals
- SRS Sounding Reference Signal
- DMRS demodulation reference signals
- UE-specific reference signal user terminal-specific reference signal
- FIG. 6 is a diagram illustrating an example of the configuration of a base station according to an embodiment.
- the base station 10 includes a control section 110, a transmitting/receiving section 120, a transmitting/receiving antenna 130, and a transmission line interface 140. Note that one or more of each of the control unit 110, the transmitting/receiving unit 120, the transmitting/receiving antenna 130, and the transmission path interface 140 may be provided.
- this example mainly shows functional blocks that are characteristic of the present embodiment, and it may be assumed that the base station 10 also has other functional blocks necessary for wireless communication. A part of the processing of each unit described below may be omitted.
- the control unit 110 controls the entire base station 10.
- the control unit 110 can be configured from a controller, a control circuit, etc., which will be explained based on common recognition in the technical field related to the present disclosure.
- the control unit 110 may control signal generation, scheduling (e.g., resource allocation, mapping), and the like.
- the control unit 110 may control transmission and reception, measurement, etc. using the transmitting/receiving unit 120, the transmitting/receiving antenna 130, and the transmission path interface 140.
- the control unit 110 may generate data, control information, a sequence, etc. to be transmitted as a signal, and may transfer the generated data to the transmitting/receiving unit 120.
- the control unit 110 may perform communication channel call processing (setting, release, etc.), status management of the base station 10, radio resource management, and the like.
- the transmitting/receiving section 120 may include a baseband section 121, a radio frequency (RF) section 122, and a measuring section 123.
- the baseband section 121 may include a transmission processing section 1211 and a reception processing section 1212.
- the transmitter/receiver unit 120 includes a transmitter/receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmitter/receiver circuit, etc., which are explained based on common understanding in the technical field related to the present disclosure. be able to.
- the transmitting/receiving section 120 may be configured as an integrated transmitting/receiving section, or may be configured from a transmitting section and a receiving section.
- the transmitting section may include a transmitting processing section 1211 and an RF section 122.
- the reception section may include a reception processing section 1212, an RF section 122, and a measurement section 123.
- the transmitting/receiving antenna 130 can be configured from an antenna described based on common recognition in the technical field related to the present disclosure, such as an array antenna.
- the transmitter/receiver 120 may transmit the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc.
- the transmitter/receiver 120 may receive the above-mentioned uplink channel, uplink reference signal, and the like.
- the transmitting/receiving unit 120 may form at least one of a transmitting beam and a receiving beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), or the like.
- digital beamforming e.g., precoding
- analog beamforming e.g., phase rotation
- the transmitting/receiving unit 120 (transmission processing unit 1211) performs Packet Data Convergence Protocol (PDCP) layer processing, Radio Link Control (RLC) layer processing (for example, RLC retransmission control), Medium Access Control (MAC) layer processing (for example, HARQ retransmission control), etc. may be performed to generate a bit string to be transmitted.
- PDCP Packet Data Convergence Protocol
- RLC Radio Link Control
- MAC Medium Access Control
- HARQ retransmission control for example, HARQ retransmission control
- the transmitting/receiving unit 120 performs channel encoding (which may include error correction encoding), modulation, mapping, filter processing, and discrete Fourier transform (DFT) on the bit string to be transmitted.
- a baseband signal may be output by performing transmission processing such as processing (if necessary), Inverse Fast Fourier Transform (IFFT) processing, precoding, and digital-to-analog conversion.
- IFFT Inverse Fast Fourier Transform
- the transmitting/receiving unit 120 may perform modulation, filter processing, amplification, etc. on the baseband signal in a radio frequency band, and may transmit the signal in the radio frequency band via the transmitting/receiving antenna 130. .
- the transmitting/receiving section 120 may perform amplification, filter processing, demodulation into a baseband signal, etc. on the radio frequency band signal received by the transmitting/receiving antenna 130.
- the transmitting/receiving unit 120 (reception processing unit 1212) performs analog-to-digital conversion, fast Fourier transform (FFT) processing, and inverse discrete Fourier transform (IDFT) on the acquired baseband signal. )) processing (if necessary), applying reception processing such as filter processing, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing and PDCP layer processing, User data etc. may also be acquired.
- FFT fast Fourier transform
- IDFT inverse discrete Fourier transform
- the transmitting/receiving unit 120 may perform measurements regarding the received signal.
- the measurement unit 123 may perform Radio Resource Management (RRM) measurement, Channel State Information (CSI) measurement, etc. based on the received signal.
- the measurement unit 123 measures received power (for example, Reference Signal Received Power (RSRP)), reception quality (for example, Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR) )) , signal strength (for example, Received Signal Strength Indicator (RSSI)), propagation path information (for example, CSI), etc. may be measured.
- the measurement results may be output to the control unit 110.
- the transmission path interface 140 transmits and receives signals (backhaul signaling) between devices included in the core network 30, other base stations 10, etc., and transmits and receives user data (user plane data) for the user terminal 20, control plane It is also possible to acquire and transmit data.
- the transmitting unit and receiving unit of the base station 10 in the present disclosure may be configured by at least one of the transmitting/receiving unit 120, the transmitting/receiving antenna 130, and the transmission path interface 140.
- the transmitting/receiving unit 120 may transmit information regarding a specific index to the user terminal 20.
- the transmitting/receiving unit 120 may receive an uplink transmission transmitted from the user terminal 20 based on a timing advance determined from a plurality of timing advances based on the specific index.
- FIG. 7 is a diagram illustrating an example of the configuration of a user terminal according to an embodiment.
- the user terminal 20 includes a control section 210, a transmitting/receiving section 220, and a transmitting/receiving antenna 230. Note that one or more of each of the control unit 210, the transmitting/receiving unit 220, and the transmitting/receiving antenna 230 may be provided.
- this example mainly shows functional blocks that are characteristic of the present embodiment, and it may be assumed that the user terminal 20 also has other functional blocks necessary for wireless communication. A part of the processing of each unit described below may be omitted.
- the control unit 210 controls the entire user terminal 20.
- the control unit 210 can be configured from a controller, a control circuit, etc., which will be explained based on common recognition in the technical field related to the present disclosure.
- the control unit 210 may control signal generation, mapping, etc.
- the control unit 210 may control transmission and reception using the transmitting/receiving unit 220 and the transmitting/receiving antenna 230, measurement, and the like.
- the control unit 210 may generate data, control information, sequences, etc. to be transmitted as a signal, and may transfer the generated data to the transmitting/receiving unit 220.
- the transmitting/receiving section 220 may include a baseband section 221, an RF section 222, and a measuring section 223.
- the baseband section 221 may include a transmission processing section 2211 and a reception processing section 2212.
- the transmitting/receiving unit 220 can be configured from a transmitter/receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measuring circuit, a transmitting/receiving circuit, etc., which are explained based on common recognition in the technical field related to the present disclosure.
- the transmitting/receiving section 220 may be configured as an integrated transmitting/receiving section, or may be configured from a transmitting section and a receiving section.
- the transmitting section may include a transmitting processing section 2211 and an RF section 222.
- the reception section may include a reception processing section 2212, an RF section 222, and a measurement section 223.
- the transmitting/receiving antenna 230 can be configured from an antenna, such as an array antenna, as described based on common recognition in the technical field related to the present disclosure.
- the transmitter/receiver 220 may receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc.
- the transmitter/receiver 220 may transmit the above-mentioned uplink channel, uplink reference signal, and the like.
- the transmitting/receiving unit 220 may form at least one of a transmitting beam and a receiving beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), or the like.
- digital beamforming e.g., precoding
- analog beamforming e.g., phase rotation
- the transmission/reception unit 220 (transmission processing unit 2211) performs PDCP layer processing, RLC layer processing (e.g. RLC retransmission control), MAC layer processing (e.g. , HARQ retransmission control), etc., to generate a bit string to be transmitted.
- RLC layer processing e.g. RLC retransmission control
- MAC layer processing e.g. , HARQ retransmission control
- the transmitting/receiving unit 220 (transmission processing unit 2211) performs channel encoding (which may include error correction encoding), modulation, mapping, filter processing, DFT processing (as necessary), and IFFT processing on the bit string to be transmitted. , precoding, digital-to-analog conversion, etc., and output a baseband signal.
- DFT processing may be based on the settings of transform precoding.
- the transmitting/receiving unit 220 transmits the above processing in order to transmit the channel using the DFT-s-OFDM waveform.
- DFT processing may be performed as the transmission processing, or if not, DFT processing may not be performed as the transmission processing.
- the transmitting/receiving unit 220 may perform modulation, filter processing, amplification, etc. on the baseband signal in a radio frequency band, and may transmit the signal in the radio frequency band via the transmitting/receiving antenna 230. .
- the transmitting/receiving section 220 may perform amplification, filter processing, demodulation into a baseband signal, etc. on the radio frequency band signal received by the transmitting/receiving antenna 230.
- the transmission/reception unit 220 (reception processing unit 2212) performs analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filter processing, demapping, demodulation, and decoding (error correction) on the acquired baseband signal. (which may include decoding), MAC layer processing, RLC layer processing, and PDCP layer processing may be applied to obtain user data and the like.
- the transmitting/receiving unit 220 may perform measurements regarding the received signal.
- the measurement unit 223 may perform RRM measurement, CSI measurement, etc. based on the received signal.
- the measurement 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 results may be output to the control unit 210.
- the transmitting unit and receiving unit of the user terminal 20 in the present disclosure may be configured by at least one of the transmitting/receiving unit 220 and the transmitting/receiving antenna 230.
- control unit 210 applies a timing advance from a plurality of timing advances (for example, TA for TRP ID #0 and TA for TRP ID #1) to a certain uplink transmission (for example, PUSCH, PUCCH, SRS).
- the timing advance may be determined based on a particular index (eg, TRP ID).
- the transmitter/receiver 220 may perform the uplink transmission based on the timing advance.
- the specific index may be related to downlink control information (DCI) for scheduling or triggering the uplink transmission.
- DCI downlink control information
- the specific index may be related to a Transmission Configuration Indication state (TCI state) specified for the uplink transmission.
- TCI state Transmission Configuration Indication state
- the specific index may be related to a measurement reference signal (SRS) resource or an SRS resource set designated for the uplink transmission.
- SRS measurement reference signal
- each functional block may be realized using one physically or logically coupled device, or may be realized using two or more physically or logically separated devices directly or indirectly (e.g. , wired, wireless, etc.) and may be realized using a plurality of these devices.
- the functional block may be realized by combining software with the one device or the plurality of devices.
- functions include judgment, decision, judgement, calculation, calculation, processing, derivation, investigation, exploration, confirmation, reception, transmission, output, access, solution, selection, selection, establishment, comparison, assumption, expectation, and consideration. , broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc.
- a functional block (configuration unit) that performs transmission may be called a transmitting unit, a transmitter, or the like. In either case, as described above, the implementation method is not particularly limited.
- a base station, a user terminal, etc. in an embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure.
- FIG. 8 is a diagram illustrating an example of the hardware configuration of a base station and a user terminal according to an embodiment.
- the base station 10 and user terminal 20 described above may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc. .
- the hardware configuration of the base station 10 and the user terminal 20 may be configured to include one or more of each device shown in the figure, or may be configured not to include some of the devices.
- processor 1001 may be implemented using one or more chips.
- Each function in the base station 10 and the user terminal 20 is performed by, for example, loading predetermined software (program) onto hardware such as a processor 1001 and a memory 1002, so that the processor 1001 performs calculations and communicates via the communication device 1004. This is achieved by controlling at least one of reading and writing data in the memory 1002 and storage 1003.
- predetermined software program
- the processor 1001 operates an operating system to control the entire computer.
- the processor 1001 may be configured by a central processing unit (CPU) that includes interfaces with peripheral devices, a control device, an arithmetic unit, registers, and the like.
- CPU central processing unit
- the above-mentioned control unit 110 (210), transmitting/receiving unit 120 (220), etc. may be realized by the processor 1001.
- the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and executes various processes in accordance with these.
- programs program codes
- software modules software modules
- data etc.
- the control unit 110 may be realized by a control program stored in the memory 1002 and operated in the processor 1001, and other functional blocks may also be realized in the same way.
- the memory 1002 is a computer-readable recording medium, and includes at least one of Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically EPROM (EEPROM), Random Access Memory (RAM), and other suitable storage media. It may be composed of one. Memory 1002 may be called a register, cache, main memory, or the like.
- the memory 1002 can store executable programs (program codes), software modules, and the like to implement a wireless communication method according to an embodiment of the present disclosure.
- the storage 1003 is a computer-readable recording medium, such as a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (for example, a compact disk (CD-ROM), etc.), a digital versatile disk, removable disk, hard disk drive, smart card, flash memory device (e.g., card, stick, key drive), magnetic stripe, database, server, or other suitable storage medium. It may be configured by Storage 1003 may also be called an auxiliary storage device.
- a computer-readable recording medium such as a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (for example, a compact disk (CD-ROM), etc.), a digital versatile disk, removable disk, hard disk drive, smart card, flash memory device (e.g., card, stick, key drive), magnetic stripe, database, server, or other suitable storage medium. It may be configured by Storage 1003 may also be called 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 a network device, network controller, network card, communication module, etc., for example.
- 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 (FDD) and time division duplex (TDD). It may be configured to include.
- FDD frequency division duplex
- TDD time division duplex
- the transmitter/receiver 120 (220) may be physically or logically separated into a transmitter 120a (220a) and a receiver 120b (220b).
- the input device 1005 is an input device (eg, keyboard, mouse, microphone, switch, button, sensor, etc.) that accepts 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 performs output to the outside. Note that 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 a bus 1007 for communicating information.
- the bus 1007 may be configured using a single bus, or may be configured using different buses for each device.
- the base station 10 and user terminal 20 also include a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), a field programmable gate array (FPGA), etc. It may be configured to include hardware, and a part or all of each functional block may be realized using the hardware. For example, processor 1001 may be implemented using at least one of these hardwares.
- DSP digital signal processor
- ASIC application specific integrated circuit
- PLD programmable logic device
- FPGA field programmable gate array
- channel, symbol and signal may be interchanged.
- the signal may be a message.
- the reference signal may also be abbreviated as RS, and may be called a pilot, pilot signal, etc. depending on the applicable standard.
- a component carrier CC may be called a cell, a frequency carrier, a carrier frequency, or the like.
- a radio frame may be composed of one or more periods (frames) in the time domain.
- Each of the one or more periods (frames) constituting a radio frame may be called a subframe.
- a subframe may be composed of one or more slots in the time domain.
- a subframe may have a fixed time length (eg, 1 ms) that does not depend on numerology.
- the numerology may be a communication parameter applied to at least one of transmission and reception of a certain signal or channel.
- Numerology includes, for example, subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, and radio frame configuration. , a specific filtering process performed by the transceiver in the frequency domain, a specific windowing process performed by the transceiver in the time domain, etc.
- a slot may be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.) in the time domain. Furthermore, a slot may be a time unit based on numerology.
- OFDM Orthogonal Frequency Division Multiplexing
- SC-FDMA Single Carrier Frequency Division Multiple Access
- a slot may include multiple mini-slots. Each minislot may be made up of one or more symbols in the time domain. Furthermore, a mini-slot may also be called a sub-slot. A minislot may be made up of fewer symbols than a slot.
- PDSCH (or PUSCH) transmitted in time units larger than minislots may be referred to as PDSCH (PUSCH) mapping type A.
- PDSCH (or PUSCH) transmitted using minislots may be referred to as PDSCH (PUSCH) mapping type B.
- Radio frames, subframes, slots, minislots, and symbols all represent time units when transmitting signals. Other names may be used for the radio frame, subframe, slot, minislot, and symbol. Note that time units such as frames, subframes, slots, minislots, and symbols in the present disclosure may be read interchangeably.
- one subframe may be called a TTI
- a plurality of consecutive subframes may be called a TTI
- one slot or one minislot may be called a TTI.
- at least one of the subframe and TTI may be a subframe (1ms) in existing LTE, a period shorter than 1ms (for example, 1-13 symbols), or a period longer than 1ms. It may be.
- the unit representing the TTI may be called a slot, minislot, etc. instead of a subframe.
- TTI refers to, for example, the minimum time unit for scheduling in wireless communication.
- a base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used by each user terminal) to each user terminal on a TTI basis.
- radio resources frequency bandwidth, transmission power, etc. that can be used by each user terminal
- the TTI may be a transmission time unit of a channel-coded data packet (transport block), a code block, a codeword, etc., or may be a processing unit of scheduling, link adaptation, etc. Note that when a TTI is given, the time interval (for example, the number of symbols) to which transport blocks, code blocks, code words, etc. are actually mapped may be shorter than the TTI.
- one slot or one minislot is called a TTI
- one or more TTIs may be the minimum time unit for scheduling.
- the number of slots (minislot number) that constitutes the minimum time unit of the scheduling may be controlled.
- a TTI having a time length of 1 ms may be called a normal TTI (TTI in 3GPP Rel. 8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, etc.
- TTI TTI in 3GPP Rel. 8-12
- normal TTI long TTI
- normal subframe normal subframe
- long subframe slot
- TTI that is shorter than the normal TTI may be referred to as an abbreviated TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, etc.
- long TTI for example, normal TTI, subframe, etc.
- short TTI for example, short TTI, etc. It may also be read as a TTI having the above TTI length.
- a resource block is a resource allocation unit in the time domain and frequency domain, and may include one or more continuous subcarriers (subcarriers) in the frequency domain.
- the number of subcarriers included in an RB may be the same regardless of the numerology, and may be 12, for example.
- the number of subcarriers included in an RB may be determined based on numerology.
- an RB may include one or more symbols in the time domain, and may have a length of one slot, one minislot, one subframe, or one TTI.
- One TTI, one subframe, etc. may each be composed of one or more resource blocks.
- one or more RBs include a physical resource block (Physical RB (PRB)), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, and an RB. They may also be called pairs.
- PRB Physical RB
- SCG sub-carrier group
- REG resource element group
- PRB pair an RB. They may also be called pairs.
- a resource block may be configured by one or more resource elements (REs).
- REs resource elements
- 1 RE may be a radio resource region of 1 subcarrier and 1 symbol.
- Bandwidth Part (also called partial bandwidth, etc.) refers to a subset of consecutive common resource blocks (RB) for a certain numerology in a certain carrier.
- the common RB may be specified by an RB index based on a common reference point of the carrier.
- PRBs may be defined in a BWP and numbered within that BWP.
- BWP may include UL BWP (BWP for UL) and DL BWP (BWP for DL).
- BWP UL BWP
- BWP for DL DL BWP
- One or more BWPs may be configured within one carrier for a UE.
- At least one of the configured BWPs may be active and the UE may not expect to transmit or receive a given signal/channel outside of the active BWP.
- “cell”, “carrier”, etc. in the present disclosure may be replaced with "BWP”.
- the structures of the radio frame, subframe, slot, minislot, symbol, etc. described above are merely examples.
- the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of symbols included in an RB The number of subcarriers, the number of symbols within a TTI, the symbol length, the cyclic prefix (CP) length, and other configurations can be changed in various ways.
- radio resources may be indicated by a predetermined index.
- data, instructions, commands, information, signals, bits, symbols, chips, etc. which may be referred to throughout the above description, may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. It may also be represented by a combination of
- information, signals, etc. may be output from the upper layer to the lower layer and from the lower layer to at least one of the upper layer.
- Information, signals, etc. may be input and output via multiple network nodes.
- Input/output information, signals, etc. may be stored in a specific location (for example, memory) or may be managed using a management table. Information, signals, etc. that are input and output can be overwritten, updated, or added. The output information, signals, etc. may be deleted. The input information, signals, etc. may be transmitted to other devices.
- Notification of information is not limited to the aspects/embodiments described in this disclosure, and may be performed using other methods.
- the notification of information in this disclosure may be physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), upper layer signaling (e.g., Radio Resource Control (RRC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB), etc.), Medium Access Control (MAC) signaling), other signals, or a combination thereof It may be carried out by physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), upper layer signaling (e.g., Radio Resource Control (RRC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB), etc.), Medium Access Control (MAC) signaling), other signals, or a combination thereof It may be carried out by
- the physical layer signaling may also be called Layer 1/Layer 2 (L1/L2) control information (L1/L2 control signal), L1 control information (L1 control signal), etc.
- RRC signaling may be called an RRC message, and may be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, or the like.
- MAC signaling may be notified using, for example, a MAC Control Element (CE).
- CE MAC Control Element
- notification of prescribed information is not limited to explicit notification, but may be made implicitly (for example, by not notifying the prescribed information or by providing other information) (by notification).
- the determination may be made by a value expressed by 1 bit (0 or 1), or by a boolean value expressed by true or false. , may be performed by numerical comparison (for example, comparison with a predetermined value).
- Software includes instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, whether referred to as software, firmware, middleware, microcode, hardware description language, or by any other name. , should be broadly construed to mean an application, software application, software package, routine, subroutine, object, executable, thread of execution, procedure, function, etc.
- software, instructions, information, etc. may be sent and received via a transmission medium.
- a transmission medium such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.
- wired technology such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.
- wireless technology such as infrared, microwave, etc.
- Network may refer to devices (eg, base stations) included in the network.
- precoding "precoding weight”
- QCL quadsi-co-location
- TCI state "Transmission Configuration Indication state
- space 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”, and “panel” are interchangeable.
- Base Station BS
- Wireless base station Wireless base station
- Fixed station NodeB
- eNB eNodeB
- gNB gNodeB
- Access point "Transmission Point (TP)”, “Reception Point (RP)”, “Transmission/Reception Point (TRP)”, “Panel”
- cell “sector,” “cell group,” “carrier,” “component carrier,” and the like
- a base station is sometimes referred to by terms such as macrocell, small cell, femtocell, and picocell.
- a base station can accommodate one or more (eg, three) cells. If a base station accommodates multiple cells, the overall coverage area of the base station can be partitioned into multiple smaller areas, and each smaller area is connected to a base station subsystem (e.g., an indoor small base station (Remote Radio Communication services can also be provided by the Head (RRH)).
- a base station subsystem e.g., an indoor small base station (Remote Radio Communication services can also be provided by the Head (RRH)
- RRH Remote Radio Communication services
- the term “cell” or “sector” refers to part or all of the coverage area of a base station and/or base station subsystem that provides communication services in this coverage.
- MS Mobile Station
- UE User Equipment
- a mobile station is a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal. , handset, user agent, mobile client, client, or some other suitable terminology.
- At least one of a base station and a mobile station may be called a transmitting device, a receiving device, a wireless communication device, etc.
- a transmitting device may be called a transmitting device, a receiving device, a wireless communication device, etc.
- the base station and the mobile station may be a device mounted on a moving object, the moving object itself, or the like.
- the moving body refers to a movable object, and the moving speed is arbitrary, and naturally includes cases where the moving body is stopped.
- the mobile objects include, for example, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, carts, rickshaws, and ships (ships and other watercraft). , including, but not limited to, airplanes, rockets, artificial satellites, drones, multicopters, quadcopters, balloons, and items mounted thereon.
- the mobile object may be a mobile object that autonomously travels based on a travel command.
- the moving object may be a vehicle (for example, a car, an airplane, etc.), an unmanned moving object (for example, a drone, a self-driving car, etc.), or a robot (manned or unmanned). ).
- a vehicle for example, a car, an airplane, etc.
- an unmanned moving object for example, a drone, a self-driving car, etc.
- a robot manned or unmanned.
- at least one of the base station and the mobile station includes devices that do not necessarily move during communication operations.
- 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
- FIG. 9 is a diagram illustrating an example of a vehicle according to an embodiment.
- the vehicle 40 includes a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a shift lever 45, left and right front wheels 46, left and right rear wheels 47, an axle 48, an electronic control unit 49, various sensors (current sensor 50, (including a rotation speed sensor 51, an air pressure sensor 52, a vehicle speed sensor 53, an acceleration sensor 54, an accelerator pedal sensor 55, a brake pedal sensor 56, a shift lever sensor 57, and an object detection sensor 58), an information service section 59, and a communication module 60.
- current sensor 50 including a rotation speed sensor 51, an air pressure sensor 52, a vehicle speed sensor 53, an acceleration sensor 54, an accelerator pedal sensor 55, a brake pedal sensor 56, a shift lever sensor 57, and an object detection sensor 58
- an information service section 59 including a communication module 60.
- the drive unit 41 is composed of, for example, at least one of an engine, a motor, and a hybrid of an engine and a motor.
- the steering unit 42 includes at least a steering wheel (also referred to as a steering wheel), and is configured to steer at least one of the front wheels 46 and the rear wheels 47 based on the operation of the steering wheel operated by the user.
- the electronic control unit 49 includes a microprocessor 61, a memory (ROM, RAM) 62, and a communication port (for example, an input/output (IO) port) 63. Signals from various sensors 50-58 provided in the vehicle are input to the electronic control unit 49.
- the electronic control section 49 may be called an electronic control unit (ECU).
- the signals from the various sensors 50 to 58 include a current signal from the current sensor 50 that senses the current of the motor, a rotation speed signal of the front wheel 46/rear wheel 47 obtained by the rotation speed sensor 51, and a signal obtained by the air pressure sensor 52.
- air pressure signals of the front wheels 46/rear wheels 47 a vehicle speed signal acquired by the vehicle speed sensor 53, an acceleration signal acquired by the acceleration sensor 54, a depression amount signal of the accelerator pedal 43 acquired by the accelerator pedal sensor 55, and a brake pedal sensor.
- 56 a shift lever 45 operation signal obtained by the shift lever sensor 57, and an object detection sensor 58 for detecting obstacles, vehicles, pedestrians, etc. There are signals etc.
- the information service department 59 includes various devices such as car navigation systems, audio systems, speakers, displays, televisions, and radios that provide (output) various information such as driving information, traffic information, and entertainment information, and these devices. It consists of one or more ECUs that control the The information service unit 59 provides various information/services (for example, multimedia information/multimedia services) to the occupants of the vehicle 40 using information acquired from an external device via the communication module 60 or the like.
- various information/services for example, multimedia information/multimedia services
- the information service unit 59 may include an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, a touch panel, etc.) that accepts input from the outside, and an output device that performs output to the outside (for example, display, speaker, LED lamp, touch panel, etc.).
- an input device for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, a touch panel, etc.
- an output device that performs output to the outside (for example, display, speaker, LED lamp, touch panel, etc.).
- the driving support system unit 64 includes millimeter wave radar, Light Detection and Ranging (LiDAR), a camera, a positioning locator (for example, Global Navigation Satellite System (GNSS), etc.), and map information (for example, High Definition (HD)). maps, autonomous vehicle (AV) maps, etc.), gyro systems (e.g., inertial measurement units (IMUs), inertial navigation systems (INS), etc.), artificial intelligence ( Artificial Intelligence (AI) chips, AI processors, and other devices that provide functions to prevent accidents and reduce the driver's driving burden, as well as one or more devices that control these devices. It consists of an ECU. Further, the driving support system section 64 transmits and receives various information via the communication module 60, and realizes a driving support function or an automatic driving function.
- LiDAR Light Detection and Ranging
- GNSS Global Navigation Satellite System
- HD High Definition
- maps for example, autonomous vehicle (AV) maps, etc.
- gyro systems e.g.,
- the communication module 60 can communicate with the microprocessor 61 and components of the vehicle 40 via the communication port 63.
- the communication module 60 communicates via the communication port 63 with a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a shift lever 45, left and right front wheels 46, left and right rear wheels 47, which are included in the vehicle 40.
- Data (information) is transmitted and received between the axle 48, the microprocessor 61 and memory (ROM, RAM) 62 in the electronic control unit 49, and various sensors 50-58.
- the communication module 60 is a communication device that can be controlled by the microprocessor 61 of the electronic control unit 49 and can communicate with external devices. For example, various information is transmitted and received with an external device via wireless communication.
- the communication module 60 may be located either inside or outside the electronic control unit 49.
- the external device may be, for example, the base station 10, user terminal 20, etc. described above.
- the communication module 60 may be, for example, at least one of the base station 10 and the user terminal 20 described above (it may function as at least one of the base station 10 and the user terminal 20).
- the communication module 60 receives signals from the various sensors 50 to 58 described above that are input to the electronic control unit 49, information obtained based on the signals, and input from the outside (user) obtained via the information service unit 59. At least one of the information based on the information may be transmitted to an external device via wireless communication.
- the electronic control unit 49, various sensors 50-58, information service unit 59, etc. may be called an input unit that receives input.
- the PUSCH transmitted by the communication module 60 may include information based on the above input.
- the communication module 60 receives various information (traffic information, signal information, inter-vehicle information, etc.) transmitted from an external device, and displays it on the information service section 59 provided in the vehicle.
- the information service unit 59 is an output unit that outputs information (for example, outputs information to devices such as a display and a speaker based on the PDSCH (or data/information decoded from the PDSCH) received by the communication module 60). may be called.
- the communication module 60 also stores various information received from external devices into a memory 62 that can be used by the microprocessor 61. Based on the information stored in the memory 62, the microprocessor 61 controls the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, shift lever 45, left and right front wheels 46, and left and right rear wheels provided in the vehicle 40. 47, axle 48, various sensors 50-58, etc. may be controlled.
- the base station in the present disclosure may be replaced by a user terminal.
- communication between a base station and a user terminal is replaced with communication between multiple 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.
- the user terminal 20 may have the functions that the base station 10 described above has.
- words such as "uplink” and “downlink” may be replaced with words corresponding to inter-terminal communication (for example, "sidelink”).
- uplink channels, downlink channels, etc. may be replaced with sidelink channels.
- the user terminal in the present disclosure may be replaced with a base station.
- the base station 10 may have the functions that the user terminal 20 described above has.
- the operations performed by the base station may be performed by its upper node in some cases.
- various operations performed for communication with a terminal may be performed by the base station, one or more network nodes other than the base station (e.g. It is clear that this can be performed by a Mobility Management Entity (MME), a Serving-Gateway (S-GW), etc. (though not limited thereto), or a combination thereof.
- MME Mobility Management Entity
- S-GW Serving-Gateway
- Each aspect/embodiment described in this disclosure may be used alone, in combination, or may be switched and used in accordance with execution. Further, the order of the processing procedures, sequences, flowcharts, etc. of each aspect/embodiment described in this disclosure may be changed as long as there is no contradiction. For example, the methods described in this disclosure use an example order to present elements of the various steps and are not limited to the particular order presented.
- LTE Long Term Evolution
- LTE-A LTE-Advanced
- LTE-B LTE-Beyond
- SUPER 3G IMT-Advanced
- 4G 4th generation mobile communication system
- 5G 5th generation mobile communication system
- 6G 6th generation mobile communication system
- xG x is an integer or decimal number, for example
- Future Radio Access FAA
- RAT New-Radio Access Technology
- NR New Radio
- NX New Radio Access
- FX Future Generation Radio Access
- G Global System for Mobile Communications
- CDMA2000 Ultra Mobile Broadband
- UMB Ultra Mobile Broadband
- IEEE 802 .11 Wi-Fi (registered trademark)
- IEEE 802.16 WiMAX (registered trademark)
- IEEE 802.20 Ultra-WideBand (UWB), Bluetooth (registered trademark), and other appropriate wireless communication methods.
- the present invention may be applied to systems to be used, next-generation systems expanded, modified, created, or defined based on these
- the phrase “based on” does not mean “based solely on” unless explicitly stated otherwise. In other words, the phrase “based on” means both “based only on” and “based at least on.”
- any reference to elements using the designations "first,” “second,” etc. does not generally limit the amount or order of those elements. These designations may be used in this disclosure as a convenient way to distinguish between two or more elements. Thus, reference to a first and second element does not imply that only two elements may be employed or that the first element must precede the second element in any way.
- determining may encompass a wide variety of actions. For example, “judgment” can mean judging, calculating, computing, processing, deriving, investigating, looking up, search, inquiry ( For example, searching in a table, database, or other data structure), ascertaining, etc. may be considered to be “determining.”
- judgment (decision) includes receiving (e.g., receiving information), transmitting (e.g., sending information), input (input), output (output), access ( may be considered to be “determining”, such as accessing data in memory (eg, accessing data in memory).
- judgment is considered to mean “judging” resolving, selecting, choosing, establishing, comparing, etc. Good too.
- judgment (decision) may be considered to be “judgment (decision)” of some action.
- the "maximum transmit power" described in this disclosure may mean the maximum value of transmit power, the nominal maximum transmit power (the nominal UE maximum transmit power), or the rated maximum transmit power (the It may also mean rated UE maximum transmit power).
- connection refers to any connection or coupling, direct or indirect, between two or more elements.
- the coupling or connection between elements may be physical, logical, or a combination thereof. For example, "connection” may be replaced with "access.”
- microwave when two elements are connected, they may be connected using one or more electrical wires, cables, printed electrical connections, etc., as well as in the radio frequency domain, microwave can be considered to be “connected” or “coupled” to each other using electromagnetic energy having wavelengths in the light (both visible and invisible) range.
- a and B are different may mean “A and B are different from each other.” Note that the term may also mean that "A and B are each different from C”. Terms such as “separate” and “coupled” may also be interpreted similarly to “different.”
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Abstract
Description
NRでは、送信設定指示状態(Transmission Configuration Indication state(TCI状態))に基づいて、信号及びチャネルの少なくとも一方(信号/チャネルと表現する)についての、端末(ユーザ端末(user terminal)、User Equipment(UE))における受信処理(例えば、受信、デマッピング、復調、復号の少なくとも1つ)、送信処理(例えば、送信、マッピング、プリコーディング、変調、符号化の少なくとも1つ)を制御することが検討されている。
・QCLタイプA(QCL-A):ドップラーシフト、ドップラースプレッド、平均遅延及び遅延スプレッド、
・QCLタイプB(QCL-B):ドップラーシフト及びドップラースプレッド、
・QCLタイプC(QCL-C):ドップラーシフト及び平均遅延、
・QCLタイプD(QCL-D):空間受信パラメータ。
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(Multi-TRP(M-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。
・オプション1:複数の(例えば、2つの)SRI/TPMIを指示するフィールドを用いて、複数の(例えば、2つの)TRPに対するSRI/TPMI(値)が指示される、
・オプション2:1つのSRI/TPMIを指示するフィールドが指示され、当該SRI/TPMIを指示するフィールドに、複数の(例えば、2つの)SRI/TPMIの値に対応するコードポイントが設定される。
複数のTRPを利用する場合にはUEと各TRP間との距離がそれぞれ異なるケースも生じる。複数のTRPは、同じセル(例えば、サービングセル)に含まれてもよい。あるいは、複数のTRPのうち、あるTRPがサービングセルに相当し、他のTRPが非サービングセルに相当してもよい。この場合、各TRPとUE間の距離が異なることも想定される。
<第1の実施形態>
第1の実施形態は、UL送信に適用(利用)するTAの決定に関する。
動的PUSCHに関連するTRP IDは、以下の少なくとも1つであってもよい:
・上記動的PUSCHをスケジューリングするDCI(スケジューリングDCI)を伝送するPDCCH/CORESETに関連する、
・スケジューリングDCIにおいて指定される、
・上記動的PUSCHのために指定されるTCI状態に関連する、
・上記動的PUSCHのために指定されるSRIに関連する、
・上記動的PUSCHのために指定されるCB/NCB SRSリソース(又はCB/NCB SRSリソースセット)に関連する。
コンフィギュアドグラントPUSCHに関連するTRP IDは、以下の少なくとも1つであってもよい:
・コンフィギュアドグラント設定に関連する、
・上記コンフィギュアドグラントPUSCHがタイプ2コンフィギュアドグラントPUSCHの場合、アクティベーションDCIを伝送するPDCCH/CORESETに関連する、
・アクティベーションDCIにおいて指定される、
・上記コンフィギュアドグラントPUSCHのために指定されるTCI状態に関連する、
・上記コンフィギュアドグラントPUSCHのために指定されるSRIに関連する、
・上記コンフィギュアドグラントPUSCHのために指定されるCB/NCB SRSリソース(又はCB/NCB SRSリソースセット)に関連する、
・予め定義される/固定である。
PUCCHに関連するTRP IDは、以下の少なくとも1つであってもよい:
・DCIによってPUCCHリソース/PUCCH送信が指定/トリガされる場合、当該DCIを伝送するPDCCH/CORESET/サーチスペースセットに関連する、
・上記DCIにおいて指定される、
・RRC/MAC CEによって設定/アクティベートされるPUCCHリソース/PUCCHリソースグループに関連する、
・上記PUCCHのために指定されるTCI状態に関連する、
・上記PUCCHにおいて伝送されるUCIに関連する、
・予め定義される/固定である。
SRSに関連するTRP IDは、以下の少なくとも1つであってもよい:
・DCIによってSRSリソース/SRS送信が指定/トリガされる場合(言い換えると、A-SRSの場合)、当該DCIを伝送するPDCCH/CORESET/サーチスペースセットに関連する、
・上記DCIにおいて指定される、
・RRC/MAC CEによって設定/アクティベートされるSRSリソース/SRSリソースセットに関連する、
・上記SRSのために指定されるTCI状態に関連する、
・予め定義される/固定である。
第2の実施形態は、色々なUL送信スキームについてのTAの決定に関する。第1の実施形態に示したTAの決定は、M-DCI M-TRP PUSCH繰り返しに適用されてもよいし、その他のUL送信スキームに適用されてもよい。
Rel.17 NRについては、S-DCI M-TRP PUSCH繰り返しが検討されている。
・PUSCH繰り返しタイプA又はBが設定される、
・1より大きい繰り返し回数が設定/指定される、
・SRSリソースセット(例えば、ある用途(コードブック/ノンコードブック)についての)が2つ設定される、
・DCIにSRIフィールドが2つ含まれる(又はDCIによって2つのTPMIが指定される)、
・電力制御パラメータセットが2つ設定される、
・TCI状態(空間関係)が2つ指定される。
Rel.17 NRについては、M-TRP PUCCH繰り返しが検討されている。
・1より大きい繰り返し回数が設定/指定される、
・PUCCHリソースに2つのTCI状態(空間関係)が設定/アクティベート/指示される、
・PUCCHリソースに2つの電力制御パラメータセットが設定/アクティベート/指示される。
異なるTAが適用される送信について、ギャップ(の長さ)が定義されてもよい。ギャップは、UEがあるTAの適用から別のTAの適用に変える場合の、切り替えにかかる時間を示してもよい。このギャップ(の長さ)は、TAスイッチングギャップ、TAギャップなどと呼ばれてもよい。TAギャップは、0シンボルであってもよいし、1シンボル以上であってもよいし、ある単位(例えばμ秒)で表されてもよい。TAギャップは、予め規格において規定されてもよいし、上位レイヤシグナリングによって設定されてもよいし、UE能力に基づいて決定されてもよい。
Rel.18 NRについては、マルチパネル同時PUSCH送信が検討されている。
・Lレイヤ(Lは任意の整数。例えば、L=4、8)のPUSCHを用いて、1CW/TBがパネル#1及び#2の両方から送信される(コヒーレントマルチパネル送信と呼ばれてもよい)、
・LレイヤのPUSCHのうち、Kレイヤ(K<L)のPUSCHを用いて、1CW/TBがパネル#1から送信され、L-KレイヤのPUSCHを用いて、当該1CW/TBがパネル#2から送信される(1CW/TBのノンコヒーレントマルチパネル送信と呼ばれてもよい)、
・LレイヤのPUSCHのうち、Kレイヤ(K<L)のPUSCHを用いて、1CW/TB(第1のCW/TB)がパネル#1から送信され、L-KレイヤのPUSCHを用いて、別の1CW/TB(第2のCW/TB)がパネル#2から送信される(2CW/TBのノンコヒーレントマルチパネル送信と呼ばれてもよい)、
・同じ時間周波数リソースにおいて、1つのTBが異なるビームを用いて2回繰り返し送信される(スキームA、SFN繰り返しなどと呼ばれてもよい)、
・異なる周波数リソース(例えば異なるPRB)において、1つのTBが異なるビームを用いて2回繰り返し送信される(スキームB、FDM繰り返しなどと呼ばれてもよい)、
・異なる周波数リソース(例えば異なるPRB)において、1つのTBが異なるビームを用いて送信される(スキームB1、FDM送信などと呼ばれてもよい)、
・1つのPUSCHにおいて、1つのTBが送信される、ここで、異なるビームを用いて当該PUSCHの異なるレイヤが送信される(スキームC、スキームC1、多重などと呼ばれてもよい)、
・1つのPUSCHにおいて、2つのTBが送信される、ここで、異なるビームを用いて異なるTBが送信される(スキームC、スキームC2、多重などと呼ばれてもよい)。
Rel.18 NRについては、マルチパネル同時PUCCH送信が検討されている。
・同じ時間周波数リソースにおいて、1つのPUCCH(UCI)が異なるビームを用いて2回繰り返し送信される(スキーム1、SFN繰り返しなどと呼ばれてもよい)、
・異なる周波数リソース(例えば異なるPRB)において、1つのPUCCH(UCI)が異なるビームを用いて2回繰り返し送信される(スキーム2、FDM繰り返しなどと呼ばれてもよい)、
・異なる周波数リソース(例えば異なるPRB)において、1つのPUCCH(UCI)が異なるビームを用いて送信される(スキーム2-1、FDM送信などと呼ばれてもよい)、
・重複する時間リソースにおいて、2つのPUCCH(UCI)が異なるビームを用いて送信される(スキーム3、多重などと呼ばれてもよい)。
本開示において、UEは、UL送信(例えばPUSCH、SRS、PUCCH)のためのTRP固有(TRP-specific)TA調整を有効化するRRCパラメータが設定される場合に、当該UL送信のためのTRP固有TA/TAGに基づく制御を行ってもよい。
・上記実施形態の少なくとも1つについての処理/動作/制御/情報をサポートすること、
・サービングセルの2つのTRPのための異なるTAをサポートすること、
・PUSCHについて2つのTRPのための異なるTAをサポートすること、
・PUCCHについて2つのTRPのための異なるTAをサポートすること、
・SRSについて2つのTRPのための異なるTAをサポートすること、
・1つ又は全てのサービングセルにわたってサポートする(異なる)TA/TAGの最大数、
・M-DCI M-TRPのための異なるTAをサポートすること、
・S-DCI M-TRPのための異なるTAをサポートすること。
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6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7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 (6)
- 複数のタイミングアドバンスから、ある上りリンク送信に適用するタイミングアドバンスを、特定のインデックスに基づいて判断する制御部と、
前記タイミングアドバンスに基づいて前記上りリンク送信を行う送信部と、を有する端末。 - 前記特定のインデックスは、前記上りリンク送信をスケジュール又はトリガするための下りリンク制御情報に関連する請求項1に記載の端末。
- 前記特定のインデックスは、前記上りリンク送信のために指定されるTransmission Configuration Indication state(TCI状態)に関連する請求項1に記載の端末。
- 前記特定のインデックスは、前記上りリンク送信のために指定される測定用参照信号(Sounding Reference Signal(SRS))リソース又はSRSリソースセットに関連する請求項1に記載の端末。
- 複数のタイミングアドバンスから、ある上りリンク送信に適用するタイミングアドバンスを、特定のインデックスに基づいて判断するステップと、
前記タイミングアドバンスに基づいて前記上りリンク送信を行うステップと、を有する端末の無線通信方法。 - 特定のインデックスに関する情報を端末に送信する送信部と、
複数のタイミングアドバンスから前記特定のインデックスに基づいて判断されたタイミングアドバンスに基づいて送信された、上りリンク送信を受信する受信部と、を有する基地局。
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013516917A (ja) * | 2010-01-08 | 2013-05-13 | インターデイジタル パテント ホールディングス インコーポレイテッド | 複数のアップリンクキャリアとのタイムアライメントの維持 |
| WO2018030049A1 (ja) * | 2016-08-10 | 2018-02-15 | ソニー株式会社 | 通信装置、通信方法及び記録媒体 |
-
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013516917A (ja) * | 2010-01-08 | 2013-05-13 | インターデイジタル パテント ホールディングス インコーポレイテッド | 複数のアップリンクキャリアとのタイムアライメントの維持 |
| WO2018030049A1 (ja) * | 2016-08-10 | 2018-02-15 | ソニー株式会社 | 通信装置、通信方法及び記録媒体 |
Non-Patent Citations (1)
| Title |
|---|
| INTEL CORPORATION: "Enhancements to Multi-Beam Operation", 3GPP DRAFT; R1-2103014, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210412 - 20210420, 7 April 2021 (2021-04-07), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP052177822 * |
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