Terminal, wireless communication method, and base station
By designing a terminal that can receive and process multiple TRP-related transmission power control information, the problem of insufficient transmission power control in multiple TRP environments is solved, and the communication throughput and reliability of the wireless communication system are improved.
Patent Information
- Application Number
- CN202380073544.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-08-23
- Filing Date
- 2023-07-19
- Publication Date
- 2025-05-27
AI Technical Summary
In future wireless communication systems, especially in channel/signal transmission using multiple transmission and reception points (TRPs), it is difficult for the prior art to effectively perform transmission power control, resulting in a decrease in communication throughput.
A terminal is designed to receive information for transmission power control of multiple TRPs and flexibly control transmission power between different TRPs through a control unit. The specific implementation includes receiving the first and second information to control the PUSCH transmission power corresponding to the plurality of TRPs.
By appropriately performing transmission power control, the communication throughput and reliability of the wireless communication system can be improved, and the problem of insufficient transmission power control in multi-TRP environments can be solved.
Smart Images

Figure CN120052033A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to a terminal, a wireless communication method, and a base station in a next-generation mobile communication system. Background Art
[0002] In a Universal Mobile Telecommunications System (UMTS) network, Long Term Evolution (LTE) has been standardized for the purpose of further high-speed data rates, low latency, etc. (Non-Patent Document 1). In addition, LTE-Advanced (3GPP Rel. 10-14) has been standardized for the purpose of further large capacity and high performance of LTE (Third Generation Partnership Project (3GPP (registered trademark)) Release (Rel.) 8, 9).
[0003] Research is also being conducted on subsequent systems of LTE (for example, also referred to as the 5th generation mobile communication system (5G), 5G+ (plus), 6th generation mobile communication system (6G), New Radio (NR), 3GPP Rel. 15 and later, etc.).
[0004] Prior Art Documents
[0005] Non-Patent Documents
[0006] Non-Patent Document 1: 3GPP TS 36.300 V8.12.0 "Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2 (Release 8)", April 2010 Summary of the Invention
[0007] Problems to be Solved by the Invention
[0008] In future wireless communication systems (e.g., NR), it is being studied that a user terminal (terminal, user terminal, User Equipment (UE)) controls transmission / reception processing based on information related to Quasi-Co-Location (QCL) (QCL assumption / Transmission Configuration Indication (TCI) state / spatial relationship).
[0009] In addition, in the transmission / reception of a channel / signal using multiple transmission / reception points (Transmission / Reception Point (TRP)), it is being studied to indicate, by downlink control information, the TCI state applicable to multiple signals (channels / reference signals).
[0010] In addition, in a future wireless communication system, a UE can use one of multiple panels (or multiple beams) in uplink (UL) transmission. In addition, for the improvement of UL throughput / reliability, it is being studied to support simultaneous UL transmission using multiple panels (e.g., simultaneous multi-panel UL transmission (SiMPUL), simultaneous UL transmission from multiple panels (STxMP)) for one or more transmission / reception points (Transmission / Reception Point (TRP)).
[0011] In the case of UL transmission using multiple TRPs and the TCI state applicable to multiple signals (channels / reference signals), and in the case of supporting simultaneous multi-panel UL transmission, the study on the transmission power control related to this UL transmission is insufficient. If this study is insufficient, transmission control cannot be appropriately performed, and there is a concern about a reduction in communication throughput.
[0012] Therefore, one of the objects of the present disclosure is to provide a terminal, a wireless communication method, and a base station capable of appropriately performing transmission power control.
[0013] Means for Solving the Problem
[0014] A terminal according to one embodiment of the present disclosure includes: a receiving unit that receives first information and second information for transmission power control of a plurality of Physical Uplink Shared Channels (PUSCHs) using a plurality of Transmission and Reception Points (TRPs); and a control unit that, when a unified Transmission Configuration Indication (TCI) state is not indicated, controls the transmission power of a PUSCH corresponding to a first TRP among the plurality of TRPs based on the first information, and controls the transmission power of a PUSCH corresponding to a second TRP among the plurality of TRPs based on the second information.
[0015] Advantageous Effects of the Invention
[0016] According to one embodiment of the present disclosure, transmission power control can be appropriately performed. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1A And Figure 1B FIG. showing an example of a unified / common TCI framework.
[0018] Figure 2A And Figure 2B FIG. showing an example of DCI-based TCI state indication.
[0019] Figures 3A to 3C FIG. showing an example of PUSCH transmission using multiple panels.
[0020] Figure 4A And Figure 4B FIG. showing an example of PUCCH transmission using multiple panels.
[0021] Figure 5A And Figure 5B FIG. showing an example of UL power control parameters in Rel.17.
[0022] Figure 6 FIG. showing an example of UL power control parameters related to Structure A.
[0023] Figure 7 FIG. showing an example of UL power control parameters related to Structure B.
[0024] Figure 8 FIG. showing an example of the schematic structure of a wireless communication system according to one embodiment.
[0025] Figure 9 FIG. showing an example of the structure of a base station according to one embodiment.
[0026] Figure 10This is a diagram showing an example of the structure of a user terminal according to an embodiment.
[0027] Figure 11 This is a diagram showing an example of the hardware structures of a base station and a user terminal according to an embodiment.
[0028] Figure 12 This is a diagram showing an example of a vehicle according to an embodiment. Detailed Embodiment
[0029] (TCI, Spatial Relationship, QCL)
[0030] In NR, research is being conducted on controlling the reception processing (e.g., at least one of reception, demapping, demodulation, decoding) and transmission processing (e.g., at least one of transmission, mapping, precoding, modulation, coding) of at least one of signals and channels (referred to as signal / channel) in a UE based on a transmission configuration indication state (TCI state).
[0031] The TCI state can also represent information on the signal / channel applied to the downlink. A state equivalent to the TCI state of the signal / channel applied to the uplink can also be referred to as a spatial relation.
[0032] The TCI state is information related to the quasi-co-location (QCL) of a signal / channel, and can also be referred to as a spatial reception parameter, spatial relation information, etc. The TCI state can also be set for a UE for each channel or for each signal.
[0033] QCL is an indicator representing the statistical properties of a signal / channel. For example, it can be meant that when a certain signal / channel is in a QCL relationship with other signal / channels, it can be assumed that at least one of Doppler shift, Doppler spread, average delay, delay spread, and spatial parameter (e.g., spatial Rx parameter) is the same among these different multiple signal / channels (at least one of them is QCL).
[0034] In addition, the spatial reception parameter may also correspond to the reception beam of the UE (e.g., reception analog beam), and the beam may also be determined based on spatial QCL. The QCL (or at least one element of QCL) in the present disclosure may also be rewritten as sQCL (spatial QCL).
[0035] Regarding QCL, multiple types (QCL types) may also be defined. For example, four QCL types A - D may also be set, and among these four QCL types A - D, it is assumed that the same parameters (or parameter sets) are different.
[0036] The situation where the UE assumes that a certain control resource set (Control Resource Set (CORESET)), channel, or reference signal is in a specific QCL (e.g., QCL type D) relationship with other CORESETs, channels, or reference signals may also be referred to as QCL assumption.
[0037] The UE may also determine at least one of the transmission beam (Tx beam) and the reception beam (Rx beam) of the signal / channel based on the TCI state or QCL assumption of the signal / channel.
[0038] The TCI state may also be, for example, information related to the QCL between the channel that is the object (in other words, the reference signal (ReferenceSignal (RS)) for this channel) and other signals (e.g., other RS). The TCI state may also be set (indicated) by higher layer signaling, physical layer signaling, or a combination thereof.
[0039] The physical layer signaling may also be, for example, downlink control information (Downlink Control Information (DCI)).
[0040] The channels for which the TCI state or spatial relationship is set (specified) may also be, for example, at least one of the downlink shared channel (Physical Downlink Shared Channel (PDSCH)), downlink control channel (Physical Downlink Control Channel (PDCCH)), uplink shared channel (Physical Uplink Shared Channel (PUSCH)), and uplink control channel (Physical Uplink Control Channel (PUCCH)).
[0041] In addition, the RS that forms a QCL relationship with this channel can also be, for example, at least one of a Synchronization Signal Block (SSB), a Channel State Information Reference Signal (CSI-RS), a reference signal for measurement (Sounding Reference Signal (SRS)), a CSI-RS for tracking (also referred to as a Tracking Reference Signal (TRS)), and a reference signal for QCL detection (also referred to as a QRS).
[0042] An SSB is a signal block that includes at least one of a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), and a broadcast channel (Physical Broadcast Channel (PBCH)). An SSB can also be referred to as an SS / PBCH block.
[0043] The RS of QCL type X in a TCI state can also mean an RS that has a QCL type X relationship with a certain channel / signal (its DMRS), and this RS can also be referred to as the QCL source of QCL type X in this TCI state.
[0044] [Physical Layer Procedure / Data for Antenna Port QCL]
[0045] The UE can follow at most M TCI-State (TCI state) settings in the high-layer parameter PDSCH-Config that is set for decoding the PDSCH, which is associated with the detected PDCCH accompanying the DCI targeted at this UE and the serving cell provided. Here, M depends on the UE capability maxNumberConfiguredTCIstatesPerCC.
[0046] Each TCI-State contains one or two downlink reference signals and parameters for setting the QCL relationship between the DMRS port of the PDSCH, the DMRS port of the PDCCH, or the CSI-RS port of the CSI-RS resource. This QCL relationship is set through the high-layer parameter qcl-Type1 for the first DL RS and (if set) the high-layer parameter qcl-Type2 for the second DL RS.
[0047] In the case of two DL RSs, regardless of whether the reference is to the same DL RS or to different DL RSs, multiple QCL types are different. The QCL type corresponding to each DL RS is provided by the high-layer parameter qcl-Type in QCL-Info and takes one of the following values.
[0048] - 'typeA': {Doppler shift, Doppler spread, average delay, delay spread}
[0049] - 'typeB': {Doppler shift, Doppler spread}
[0050] - 'typeC': {Doppler shift, average delay}
[0051] - 'typeD': {Spatial Rx parameter}
[0052] 〔RRC protocol specification / RRC IE / TCI state〕
[0053] The TCI-State associates one or two DL reference signals (RSs) with the corresponding QCL types. When an additional physical cell identifier (PCI) is set for the RS, the same value is set for both DL RSs.
[0054] (unified / common TCI framework)
[0055] According to the unified TCI framework, multiple (UL / DL) channels / RSs can be controlled by a common framework. Regarding the unified TCI framework, instead of specifying the TCI state or spatial relationship for each channel as in Rel.15, it is possible to indicate a common beam (common TCI state) and apply it to all UL and DL channels, or apply the common beam for UL to all UL channels and the common beam for DL to all DL channels.
[0056] A common beam for both DL and UL, or a common beam for DL and a common beam for UL (two common beams in total) are being studied.
[0057] The UE can also assume the same TCI states (joint TCI state, joint TCI pool, joint common TCI pool, joint TCI state set) for both UL and DL. The UE can also assume different TCI states (separate TCI state, separate TCI pool, UL separate TCI pool and DL separate TCI pool, separate common TCI pool, UL common TCI pool and DL common TCI pool) for UL and DL respectively.
[0058] The default beams of UL and DL can also be aligned through MAC CE-based beam management (MAC CE-level beam indication). The default TCI state of the PDSCH can also be updated and aligned with the default UL beam (spatial relation).
[0059] Common beams / unified TCI states can also be indicated from the same TCI pool (joint common TCI pool, joint TCI pool, set) used for both UL and DL through DCI-based beam management (DCI-level beam indication). X (>1) TCI states can also be activated through MAC CE. The UL / DL DCI can also select one from the X activated TCI states. The selected TCI state can also be applied to the channels / RSs of both UL and DL.
[0060] The TCI pool (set) can be either multiple TCI states set through RRC parameters or multiple TCI states activated through MAC CE among the multiple TCI states set through RRC parameters (activated TCI state, activated TCI pool, set). Each TCI state can also be a QCL type A / D RS. As a QCL type A / D RS, SSB, CSI-RS, or SRS can also be set.
[0061] The number of TCI states corresponding to each of more than one TRP can also be specified. For example, the number N (≥1) of TCI states (UL TCI states) applied to the channels / RSs of UL and the number M (≥1) of TCI states (DL TCI states) applied to the channels / RSs of DL can also be specified. At least one of N and M can also be notified / set / indicated to the UE via higher layer signaling / physical layer signaling.
[0062] In the present disclosure, when it is described that N = M = X (X is an arbitrary integer), it may also mean that a TCI state (joint TCI state) common to X ULs and DLs (corresponding to X TRPs) is notified / set / indicated to the UE. In addition, when it is described that N = X (X is an arbitrary integer) and M = Y (Y is an arbitrary integer, and Y may also be equal to X), it may also mean that X UL TCI states (corresponding to X TRPs) and Y DL TCI states (corresponding to Y TRPs) are separately notified / set / indicated to the UE (i.e., independent TCI states).
[0063] For example, when it is described that N = M = 1, it may also mean that a TCI state common to one UL and DL for a single TRP is notified / set / indicated to the UE (joint TCI state for a single TRP).
[0064] In addition, for example, when it is described that N = 1 and M = 1, it may also mean that one UL TCI state and one DL TCI state for a single TRP are separately notified / set / indicated to the UE (independent TCI state for a single TRP).
[0065] In addition, for example, when it is described that N = M = 2, it may also mean that a TCI state common to multiple (two) ULs and DLs for multiple (two) TRPs is notified / set / indicated to the UE (joint TCI state for multiple TRPs).
[0066] In addition, for example, when it is described that N = 2 and M = 2, it may also mean that multiple (two) UL TCI states and multiple (two) DL TCI states for multiple (two) TRPs are notified / set / indicated to the UE (independent TCI states for multiple TRPs).
[0067] In addition, in the above examples, the cases where the values of N and M are 1 or 2 are illustrated, but the values of N and M may also be 3 or more, and N and M may also be different.
[0068] In Rel.17, the support for N = M = 1 is being studied. After Rel.18, the support for other cases is being studied.
[0069] In Figure 1AIn the example, the RRC parameters (information elements) set multiple TCI states for both DL and UL. The MAC CE can also activate multiple TCI states among the set multiple TCI states. The DCI can also indicate one of the activated multiple TCI states. The DCI can also be UL / DL DCI. The indicated TCI state can also be applied to at least one (or all) of the UL / DL channels / RSs. One DCI can also indicate both the UL TCI and the DL TCI.
[0070] In the example of this figure, a point can be either one TCI state applied to both UL and DL, or two TCI states respectively applied to UL and DL.
[0071] At least one of the multiple TCI states set by the RRC parameters and the multiple TCI states activated by the MAC CE can also be referred to as a TCI pool (common TCI pool, joint TCI pool, TCI state pool). The multiple TCI states activated by the MAC CE can also be referred to as an activated TCI pool (activated common TCI pool).
[0072] In addition, in this disclosure, the higher-layer parameters (RRC parameters) that set multiple TCI states can also be referred to as the setting information for setting multiple TCI states, or can also be abbreviated as "setting information" for short. Furthermore, in this disclosure, the matter of using the DCI to indicate one of the multiple TCI states can be either receiving the indication information indicating one of the multiple TCI states included in the DCI, or just receiving the "indication information".
[0073] In Figure 1B the example, the RRC parameters set multiple TCI states (joint common TCI pool) for both DL and UL. The MAC CE can also activate multiple TCI states among the set multiple TCI states (activated TCI pool). Activated TCI pools for UL and DL respectively (separate, independent) can also be set / activated.
[0074] The DL DCI or the new DCI format may also select (indicate) more than one (e.g., one) TCI state. The selected TCI state may also be applied to more than one (or all) DL channels / RSs. The DL channels may also be PDCCH / PDSCH / CSI-RS. The UE may also use the operation of the TCI state (TCI framework) of Rel.16 to determine the TCI state of each DL channel / RS. The UL DCI or the new DCI format may also select (indicate) more than one (e.g., one) TCI state. The selected TCI state may also be applied to more than one (or all) UL channels / RSs. The UL channels may also be PUSCH / SRS / PUCCH. In this way, different DCIs may separately indicate the UL TCI and the DL DCI.
[0075] After Rel.17 NR, it is envisioned to support the activation / indication of beams to TCI states associated with different physical cell identifiers (PCIs) through MAC CE / DCI. In addition, after Rel.18 NR, it is envisioned to support the indication of a change of the serving cell to a cell with a different PCI through MAC CE / DCI.
[0076] 〔Data with Physical Layer Process / Antenna Port QCL〕
[0077] To provide reference signals for the DMRS of the PDSCH and the DMRS of the PDCCH, and the CSI-RS within a certain CC, further, in the case where the PUSCH and PUCCH resources based on dynamic grant and configured grant within a certain CC, and the UL TX (transmission) spatial filter for SRS can be utilized, to provide a reference for the determination of the UL TCI filter, within PDSCH-Config (PDSCH configuration), the UE can be configured with a list of up to 128 DLorJointTCIState (DL or joint TCI state) configurations.
[0078] In the case where there is no setting of DL or Joint TCI State or UL-TCI State (UL TCI state) within the BWP in the CC, the UE can apply the setting of DL or Joint TCI State or UL-TCI State from the reference BWP of the reference CC. In the case where the DL or Joint TCI State or UL-TCI State is set in any CC within the same band of the UE, it is not envisaged that TCI-State, SpatialRelationInfo (spatial relation information), or PUCCH-SpatialRelationInfo (PUCCH spatial relation information) other than SpatialRelationInfoPos (spatial relation information for position) within the band is set. The UE assumes that, in the case where the UE is set the TCI-State within any CC in the CC list by simultaneousTCI-UpdateList1-r16 (simultaneous TCI update list 1), simultaneousTCI-UpdateList2-r16 (simultaneous TCI update list 2), simultaneousSpatial-UpdatedList1-r16 (simultaneous spatial update list 1), or simultaneousSpatial-UpdatedList2-r16 (simultaneous spatial update list 2), the UE is not set the DL or Joint TCI State or UL-TCI State within any CC in the CC.
[0079] If available, the UE receives an activation command for up to 8 TCI states and / or pairs of TCI states that map the code points of the DCI field 'Transmission Configuration Indication' (TCI) for one or a set of CC / DL BWPs to a TCI state for a DL channel / signal and a TCI state for a UL channel / signal. For a set of CC / DL BWPs, and further for one of the CC / DL BWPs if available, in the case of a set of activated TCI state IDs, the same set of TCI state IDs is applied to all DL and / or UL BWPs within the indicated CC. Here, the applicable list of CCs is determined by the CC indicated in the activation command. In the case where the activation command maps a DLorJointTCIState and / or UL-TCIState to only one TCI code point, the UE applies the indicated DLorJointTCIState and / or UL-TCIState to one or a set of CC / DL BWPs. If the indicated mapping for a single TCI code point is applied, the indicated DLorJointTCIState and / or UL-TCIState is applied to one or a set of CC / DL BWPs.
[0080] In the case where the bwp-id or cell of the QCL-Type A / D source RS in the QCL-Info of the TCI state for which DLorJointTCIState is configured is not set, the UE assumes that the QCL-Type A / D source RS is set within the CC / DL BWP to which the TCI state is applied.
[0081] (Indication of TCI state)
[0082] Rel.17 unified TCI framework supports the following modes 1 to 3.
[0083] [Mode 1] MAC CE-based TCI state indication (MAC CE based TCI state indication)
[0084] [Mode 2] DCI-based TCI state indication associated with DL allocation (DCI based TCI state indication by DCI format 1_1 / 1_2 with DL assignment)
[0085] [Pattern 3] DCI-based TCI state indication without DL assignment (DCI based TCI state indication by DCI format 1_1 / 1_2 without DL assignment)
[0086] A UE that receives a DCI format 1_1 / 1_2 that provides an indicated TCI state accompanied by a Rel.17 TCI state ID (e.g., tci-StateId_r17) for one CC, or receives a DCI format 1_1 / 1_2 that provides an indicated TCI state accompanied by a Rel.17 TCI state ID for all CCs within the same CC list as the CC list configured and activated with a simultaneous TCI update list 1 or simultaneous TCI update list 2 (e.g., simultaneousTCI-UpdateList1 or simultaneousTCI-UpdateList2). For DCI format 1_1 / 1_2, if a DL assignment is available, it may or may not be accompanied.
[0087] In the case where DCI format 1_1 / 1_2 is not accompanied by a DL assignment, the UE can assume (verify) the following for this DCI.
[0088] - The CS-RNTI is used for scrambling the CRC for the DCI.
[0089] - The values of the following DCI fields (special fields) are set as follows:
[0090] - The redundancy version (RV) field is all '1's.
[0091] - The modulation and coding scheme (MCS) field is all '1's.
[0092] - The new data indicator (NDI) field is 0.
[0093] - The frequency domain resource assignment (FDRA) field is all '0's for FDRA type 0, or all '1's for FDRA type 1, or all '0's for DynamicSwitch (the same as the validation of the released PDCCH for DL semi-persistent scheduling (SPS) or UL grant type 2 scheduling).
[0094] In addition, the DCI in the above-mentioned mode 2 / mode 3 can also be referred to as beam indication DCI.
[0095] In Rel.15 / 16, when the UE does not support activation BWP change via DCI, the UE ignores the BWP indicator field. The same operation is also being studied for the support of Rel.17 TCI states and the relationship with the interpretation of the TCI field. It is being studied that when the UE is configured with Rel.17 TCI states, the TCI field always exists in DCI format 1_1 / 1_2, and when the UE does not support TCI update via DCI, the UE ignores the TCI field.
[0096] In Rel.15 / 16, regarding the existence of the TCI field (TCI presence information in DCI, tci-PresentInDCI), it is configured for each CORESET.
[0097] The TCI field in DCI format 1_1 is 0 bits when the higher layer parameter tci-PresentInDCI is not valid, and 3 bits otherwise. When the BWP indicator field indicates a BWP other than the activated BWP, the UE follows the following operations.
[0098] [Operation] When the higher layer parameter tci-PresentInDCI is not valid for the CORESET used in the PDCCH that transmits this DCI format 1_1, the UE assumes that tci-PresentInDCI is not valid for all CORESETs within the indicated BWP, and otherwise, the UE assumes that tci-PresentInDCI is valid for all CORESETs within the indicated BWP.
[0099] The TCI field in DCI format 1_2 is 0 bits when the higher layer parameter tci-PresentInDCI-1-2 is not valid, and is 1 or 2 or 3 bits determined by the higher layer parameter tci-PresentInDCI-1-2 otherwise. When the BWP indicator field indicates a BWP other than the active BWP, the UE follows the following operations.
[0100] [Operation] When the higher layer parameter tci-PresentInDCI-1-2 is not set for the CORESET used in the PDCCH carrying this DCI format 1_2, the UE assumes that tci-PresentInDCI is not valid for all CORESETs within the indicated BWP, and otherwise, the UE assumes that tci-PresentInDCI-1-2 is set with the same value as the tci-PresentInDCI-1-2 set for the CORESET used in the PDCCH carrying this DCI format 1_2 for all CORESETs within the indicated BWP.
[0101] Figure 2A Shows an example of DCI-based joint DL / UL TCI state indication. For the value of the TCI field for joint DL / UL TCI state indication, a TCI state ID representing the joint DL / UL TCI state is associated.
[0102] Figure 2B Shows an example of DCI-based independent DL / UL TCI state indication. For the value of the TCI field for independent DL / UL TCI state indication, at least one TCI state ID representing the TCI state for DL only and the TCI state ID representing the TCI state for UL only is associated. In this example, the values 000 to 001 of the TCI field are associated with only one TCI state ID for DL, the values 010 to 011 of the TCI field are associated with only one TCI state ID for UL, and the values 100 to 111 of the TCI field are associated with both one TCI state ID for DL and one TCI state ID for UL.
[0103] (Indicating TCI state / Setting TCI state)
[0104] For the Rel.17 TCI state, the unified / common TCI state may also mean the Rel.17 TCI state indicated using (Rel.17's) DCI / MACCE / RRC (indicated Rel.17 TCI state).
[0105] In the present disclosure, the Rel.17 TCI state indication, the indicated TCI state, the unified / common TCI state, the TCI state applied to multiple signals (channels / RSs), and the TCI state for multiple signals (channels / RSs) can also be rewritten with each other.
[0106] The Rel.17 TCI state indication can also be shared with at least one of the UE-specific reception in PDSCH / PDCCH (updated using Rel.17 DCI / MAC CE / RRC), the dynamic grant (DCI) / configured grant PUSCH, and multiple (e.g., all) dedicated PUCCH resources. The TCI state indicated by DCI / MAC CE / RRC can also be referred to as the indicated TCI state or the unified TCI state.
[0107] For the Rel.17 TCI state, the TCI state other than the unified TCI state can also mean the Rel.17 TCI state configured using (Rel.17) MAC CE / RRC (configured Rel.17 TCI state). In the present disclosure, the configured Rel.17 TCI state, the configured TCI state, the TCI state other than the unified TCI state, and the TCI state applied to a specific type of signal (channel / RS) can also be rewritten with each other.
[0108] The configured Rel.17 TCI state may not be shared with at least one of the UE-specific reception in PDSCH / PDCCH (updated using Rel.17 DCI / MAC CE / RRC), the dynamic grant (DCI) / configured grant PUSCH, and multiple (e.g., all) dedicated PUCCH resources. The configured Rel.17 TCI state can also be a structure that is configured by RRC / MAC CE for each CORESET / each resource / each resource set, and the configured Rel.17 TCI state will not be updated even if the above-mentioned Rel.17 TCI state indication (common TCI state) is updated.
[0109] Research is being conducted on applying the indication of Rel.17 TCI state for UE-specific channels / signal (RS). In addition, research is being conducted on using higher layer signaling (RRC signaling) to notify the UE of the application of the indication of Rel.17 TCI state for non-UE-specific channels / signal and which one of the Rel.17 TCI states is set.
[0110] Research is being conducted on setting the RRC parameters related to the setting of Rel.17 TCI state (TCI state ID) to the same structure as the RRC parameters of the TCI state in Rel.15 / 16. Research is being conducted on setting the Rel.17 TCI state to be set / indicated per CORESET / per resource / per resource set using RRC / MAC CE. In addition, research is being conducted on the UE making a judgment based on specific parameters for this setting / indication.
[0111] Research is being conducted on independently updating the indication of the TCI state and updating the setting of the TCI state for the UE. For example, for the UE, when the unified TCI state for the indication of the TCI state is updated, the update of the setting of the TCI state may not be performed. In addition, research is being conducted on the UE making a judgment based on specific parameters for this update.
[0112] In addition, research is being conducted on using higher layer signaling (RRC / MAC CE) to switch whether to apply the indication of Rel.17 TCI state for PDCCH / PDSCH or not (apply the setting of Rel.17 TCI state, apply the TCI state set independently of the indication of Rel.17 TCI state).
[0113] In addition, for beam indication within the cell (indication of TCI state), research is being conducted on supporting the indication of Rel.17 TCI state for UE-specific CORESET and the PDSCH associated with this CORESET, and non-UE-specific CORESET and the PDSCH associated with this CORESET.
[0114] In addition, for beam indication between cells (e.g., L1 / L2 inter-cell mobility), research is being conducted on supporting the indication of Rel.17 TCI state for UE-specific CORESET and the PDSCH associated with this CORESET.
[0115] In Rel.15, whether CORESET#0 indicates the TCI state depends on the implementation of the base station. In Rel.15, for CORESET#0 with the TCI state indicated, the indicated TCI state is applied. For CORESET#0 without the TCI state indicated, the SSB and QCL selected during the latest (most recent) PRACH transmission are applied.
[0116] In the unified TCI state framework after Rel.17, the TCI state related to CORESET#0 is being studied.
[0117] For example, in the unified TCI state framework after Rel.17, for the Rel.17 TCI state indication of CORESET#0, it can also be set via RRC for each CORESET whether to apply the indicated Rel.17 TCI state associated with the serving cell. In the case of not applying it, the existing MAC CE / RACH signalling mechanism is utilized.
[0118] In addition, the CSI-RS associated with the Rel.17 TCI state applied to CORESET#0 can also be QCLed (the same as in Rel.15) with the SSB associated with the serving cell PCI (physical cell ID).
[0119] It can also be set via RRC parameters for CORESET#0, the CORESET associated with the common search space (CSS), and the CORESET associated with the CSS and the UE-specific search space (USS) whether to follow the indicated Rel.17 TCI state for each CORESET. In the case where it is not set to follow the indicated Rel.17 TCI state for this CORESET, the set Rel.17 TCI state can also be applied in this CORESET.
[0120] It can also be set by RRC parameters: For non-UE-dedicated channels / RSs (except for CORESETs), for each channel / resource / resource set, whether to follow the indication of Rel.17 TCI state. In the case where it is not set to follow the indication of Rel.17 TCI state for this channel / resource / resource set, the Rel.17 TCI state can also be applied in this channel / resource / resource set.
[0121] (Multi-panel transmission)
[0122] In Rel.15 and Rel.16 UEs, only one beam and panel are used for UL transmission at a time point ( Figure 3A ). In Rel.17, in order to improve UL throughput and reliability, for more than one transmission / reception point (Transmission / Reception Point (TRP)), simultaneous UL transmission of multiple beams (multiple beams) and multiple panels (multiple panels) is being studied.
[0123] For simultaneous UL transmission using multiple beams and multiple panels, reception based on one TRP with multiple panels ( Figure 3B ), or reception based on two TRPs with ideal backhaul ( Figure 3C ) is being studied. A single PDCCH for scheduling multiple PUSCHs (e.g., simultaneous transmission of PUSCH#1 and PUSCH#2) is being studied. Support for panel-specific transmission and introduction of panel ID are being studied.
[0124] The base station can also use the UL transmission configuration indication (TCI) or panel ID to set or indicate panel-specific transmission for UL transmission. The UL TCI (UL TCI state) can also be based on signaling similar to the DL beam indication supported in Rel.15. The panel ID can also be implicitly or explicitly applied to the transmission of at least one of the target RS resource or target RS resource set, PUCCH, SRS, PRACH. When the panel ID is explicitly notified, the panel ID can also be set in at least one of the target RS, target channel, reference RS (e.g., DL RS resource setting or spatial relation information).
[0125] In UL transmission using multiple panels, the UE can also transmit multiple Physical Uplink Control Channels (PUCCH). As transmission methods for PUCCH using simultaneous UL transmission with multiple panels, the following schemes 1 and 2 are being studied.
[0126] [Scheme 1]
[0127] Two PUCCH resources overlap in the time domain and are transmitted simultaneously. The two PUCCH resources are respectively associated with a different panel / beam (refer to Figure 4A ). The two beams are respectively transmitted towards their respective TRPs.
[0128] [Scheme 2]
[0129] One PUCCH resource is transmitted simultaneously using two panel / space relationships. One PUCCH resource is associated with two panels / beams (refer to Figure 4B ). The two beams are respectively transmitted towards their respective TRPs.
[0130] In addition, the case where the number of panels is two is used as an example for illustration, but in the present disclosure, the number of panels can also be 3 or more. In other words, 2 of the number of panels can also be rewritten as a number of 3 or more.
[0131] In addition, Scheme 2 can also be applied to the repetition of PUCCH in an SFN (Single Frequency Network).
[0132] (UL TCI State)
[0133] In Rel.16 NR, as a beam indication method for UL, using the UL TCI state is being studied. The notification of the UL TCI state is similar to the notification of the UE's DL beam (DL TCI state). In addition, the DL TCI state can also be rewritten with the TCI state for PDCCH / PDSCH.
[0134] The channel / signal for which the UL TCI state is set (designated) (which can also be referred to as the target channel / RS) can be, for example, at least one of PUSCH (DMRS of PUSCH), PUCCH (DMRS of PUCCH), random access channel (Physical Random Access Channel (PRACH)), SRS, etc.
[0135] In addition, the RS (source RS) that has a QCL relationship with the channel / signal can be, for example, a DL RS (e.g., SSB, CSI-RS, TRS, etc.) or a UL RS (e.g., SRS, SRS for beam management, etc.).
[0136] In the UL TCI state, the RS that has a QCL relationship with the channel / signal can also be associated with the panel ID used to receive or transmit the RS. This association can be explicitly set (or specified) through higher-layer signaling (e.g., RRC signaling, MAC CE, etc.) or implicitly determined.
[0137] The correspondence between the RS and the panel ID can be set by being included in the UL TCI state information or can be set by being included in at least one of the resource setting information, spatial relationship information, etc. of the RS.
[0138] The QCL type represented by the UL TCI state can be the existing QCL types A - D, other QCL types, and can also include specific spatial relationships, associated antenna ports (port indices), etc.
[0139] If the UE is specified an associated panel ID for UL transmission (e.g., specified by DCI), the panel corresponding to the panel ID can also be used for the UL transmission. The panel ID can also be associated with the UL TCI state. When the UE is specified (or activated) with a UL TCI state for a specific UL channel / signal, the UE can also determine the panel used for the UL channel / signal transmission according to the panel ID associated with the UL TCI state.
[0140] (Transmission Power Control)
[0141] <Transmission Power Control for PUSCH>
[0142] In NR (e.g., Rel.16), the transmission power of the PUSCH is controlled based on the TPC command (also referred to as value, increment / decrement value, correction value, etc.) represented by the value of a specific field in the DCI (also called the TPC command field, etc.).
[0143] For example, in the case where the UE uses a parameter set with index j (open loop parameter set) and the index l of the power control adjustment state to transmit PUSCH on the active UL BWP b of the carrier f in the serving cell c, the transmission power (P PUSCH、b,f,c of PUSCH in the PUSCH transmission opportunity (transmission occasion) i (also referred to as the transmission period, etc.) can also be represented by the following formula (1). d (i, j,q
[0144] [Equation 1]
[0145]
[0146] Here, the power control adjustment state can also be set by a higher layer parameter to have multiple states (e.g., two states), or still have a single state. In addition, in the case where multiple power control adjustment states are set, one of the multiple power control adjustment states can also be identified by the index l (e.g., l ∈ {0,1}). The power control adjustment state can also be referred to as the PUSCH power control adjustment state, the first or second state, etc.
[0147] In addition, the PUSCH transmission opportunity i is a specific period during which the PUSCH is transmitted. For example, it can also be composed of more than one symbol, more than one time slot, etc.
[0148] In Equation (1), P CMAX,f,c (i) is, for example, the transmission power of the user terminal set for the carrier f of the serving cell c in the transmission opportunity i (also referred to as the maximum transmission power, UE maximum output power, etc.). P O_PUSCH,b,f,c (j) is, for example, a parameter related to the target reception power set for the active UL BWP b of the carrier f in the parameter set setting j (e.g., also referred to as a parameter related to the transmission power offset, transmission power offset P0, target reception power parameter, etc.).
[0149] M PUSCH RB,b,f,c (i) is, for example, the number of resource blocks (bandwidth) allocated to the PUSCH for the transmission opportunity i in the active UL BWP b of the serving cell c and the carrier f with the subcarrier spacing μ. α b,f,c(j) is a value provided by higher-layer parameters (e.g., also referred to as msg3-Alpha, p0-PUSCH-Alpha, fractional factor, etc.).
[0150] PL b,f,c (q d ) is, for example, the index q of a reference signal (path loss reference RS, DL RS for path loss measurement, PUSCH-PathlossReferenceRS) used for the downlink BWP associated with the active UL BWP b of the carrier f of the serving cell c. d The path loss (path loss compensation) is calculated at the user terminal using this.
[0151] Δ TF,b,f,c (i) is the transmission power adjustment component (offset, transmission format compensation) for the UL BWP b of the carrier f of the serving cell c.
[0152] f b,f,c (i, l) is the value of the TPC command for the power control adjustment status index l of the active UL BWP of the carrier f based on the serving cell c and the transmission opportunity i (e.g., power control adjustment status, cumulative value of the TPC command, value based on closed-loop). l may also be referred to as the closed-loop index.
[0153] In the case where the UE is not provided with a path loss reference RS (e.g., PUSCH-PathlossReferenceRS), or in the case where the UE is not provided with dedicated higher-layer parameters, the UE may also use the RS resources from the SSB for obtaining the Master Information Block (MIB) to calculate PL b,f,c (q d ).
[0154] In the case where the UE is set with the number of RS resource indices up to the value of the maximum number of path loss reference RSs (e.g., maxNrofPUSCH-PathlossReferenceRS), and a set is set for each RS of the RS resource indices through the path loss reference RS, the set of RS resource indices may also include one or both of the set of SS / PBCH block indices and the set of CSI-RS resource indices. The UE may also identify the RS resource index q within the set of RS resource indices d .
[0155] In the case where PUSCH transmission is scheduled by a Random Access Response (RAR) UL grant, the UE may also use the same RS resource index q as that for the corresponding PRACH transmission d 。
[0156] In the case where the UE is provided with a setting for power control of PUSCH based on a sounding reference signal (SRS) resource indicator (SRI) (e.g., SRI-PUSCH-PowerControl), and in the case where more than one value of the ID of the path loss reference RS is provided, a mapping between the set of values of the SRI field in DCI format 0_1 and the set of ID values of the path loss reference RS may also be obtained from higher layer signaling (e.g., sri-PUSCH-PowerControl-Id in SRI-PUSCH-PowerControl). The UE may also determine the RS resource index q according to the ID of the path loss reference RS mapped to the SRI field value in DCI format 0_1 that schedules the PUSCH d 。
[0157] In the case where PUSCH transmission is scheduled by DCI format 0_0 and the UE is not provided with PUCCH spatial relation information for the PUCCH resource having the lowest index for each carrier f and serving cell c with an active UL BWP b, the UE may also use the same RS resource index q as that for PUCCH transmission within the PUCCH resource d 。
[0158] In the case where PUSCH transmission is scheduled by DCI format 0_0 and the UE is not provided with the spatial setting of PUCCH transmission, or in the case where PUSCH transmission is scheduled by DCI format 0_1 that does not include an SRI field, or in the case where the setting for power control of SRI-based PUSCH is not provided to the UE, the UE may also use the RS resource index q with the ID of the path loss reference RS being zero d 。
[0159] For PUSCH transmission configured by a configured grant configuration (e.g., ConfiguredGrantConfig), in the case where the configured grant configuration includes a specific parameter (e.g., rrc-CofiguredUplinkGrant), the RS resource index q dIt can also be provided to the UE through the path loss reference index (e.g., pathlossReferenceIndex) within specific parameters.
[0160] For PUSCH transmission configured through a configured grant, in the case where the configured grant does not include specific parameters, the UE can also determine the RS resource index q according to the value of the ID of the path loss reference RS mapped to the SRI field within the DCI format for the activated PUSCH transmission. d In the case where the DCI format does not include the SRI field, the UE can also determine the RS resource index q with an ID of the path loss reference RS of zero. d .
[0161] <PUCCH Transmission Power Control>
[0162] In addition, in NR, the transmission power of the PUCCH is controlled based on the TPC command (also referred to as value, increment / decrement value, correction value, indication value, etc.) represented by the value of a specific field within the DCI (also referred to as the TPC command field, the first field, etc.).
[0163] For example, the index l of the power control adjustment state can also be used, and the transmission power (P PUCCH、b,f,c (i,q u ,q d ,l)) of the PUCCH in the transmission occasion (also referred to as the transmission period, etc.) i of the activated UL BWP b for the carrier f of the serving cell c can be represented by the following formula (2).
[0164] [Mathematical Formula 2]
[0165]
[0166] The power control adjustment state can also be referred to as the PUCCH power control adjustment state, the first or second state, etc.
[0167] In addition, the PUCCH transmission occasion i is a specific period during which the PUCCH is transmitted, and can be composed of, for example, more than one symbol, more than one time slot, etc.
[0168] In formula (2), P CMAX,f,c (i) is, for example, the transmission power (also referred to as the maximum transmission power, the UE maximum output power, etc.) of the user terminal configured for the carrier f of the serving cell c during the transmission occasion i. PO_PUCCH,b,f,c (q u ) For example, it is a parameter related to the target reception power set for activating the uplink BWP b of the carrier f of the serving cell c in transmission opportunity i (for example, also referred to as a parameter related to the transmission power offset, the transmission power offset P0, or the target reception power parameter, etc.).
[0169] M PUCCH RB,b,f,c (i) For example, it is the number of resource blocks (bandwidth) allocated to the PUCCH for transmission opportunity i in the activated uplink BWP b of the carrier f of the serving cell c and subcarrier spacing μ. PL b,f,c (q d ) For example, it is the index q of the reference signal (path loss reference RS, downlink RS for path loss measurement, PUCCH - PathlossReferenceRS) used for the downlink BWP associated with the activated uplink BWP b of the carrier f of the serving cell c d for calculating the path loss in the user terminal.
[0170] Δ F_PUCCH (F) is a higher layer parameter provided for each PUCCH format. Δ TF,b,f,c (i) is the transmission power adjustment component (offset) for the uplink BWP b of the carrier f of the serving cell c.
[0171] g b,f,c (i, l) is the value of the TPC command based on the power control adjustment status index l of the activated uplink BWP of the carrier f of the serving cell c and transmission opportunity i (for example, the power control adjustment status, the cumulative value of the TPC command, the value based on closed - loop, the PUCCH power adjustment status).
[0172] When the UE is provided with information indicating the use of two PUCCH power control adjustment states (twoPUCCH - PC - AdjustmentStates) and PUCCH spatial relation information (PUCCH - SpatialRelationInfo), l can also be {0, 1}. When the UE is not provided with information indicating the use of two PUCCH power control adjustment states or PUCCH spatial relation information, l can also be 0.
[0173] In the case where the UE obtains the TPC command value from DCI format 1_0 or 1_1, and in the case where the UE is provided with PUCCH spatial relation information, the UE can also obtain the mapping between the PUCCH spatial relation information ID (pucch-SpatialRelationInfoId) value and the closed-loop index (closedLoopIndex, power adjustment state index l) through the index provided by the PUCCH with the P0 ID (p0-PUCCH-Id within PUCCH-PowerControl within PUCCH-Config). In the case where the UE receives an activation command containing the value of the PUCCH spatial relation information ID, the UE can also determine the value of the closed-loop index that provides the value of l through the link corresponding to the P0 ID of the PUCCH.
[0174] When the UE activates the UL BWP b for the carrier f of the serving cell c and is provided with P O_PUCCH,b,f,c (q u ) value setting by the higher layer, g b,f,c (i, l) = 0, k = 0, 1,..., i. When the UE is provided with PUCCH spatial relation information, the UE can also determine the value of l based on the PUCCH spatial relation information associated with the P0 ID for the PUCCH corresponding to q u and the closed-loop index value corresponding to l, according to the value of q u .
[0175] q u can also be the P0 ID (p0-PUCCH-Id) of the PUCCH for the PUCCH within the P0 set (p0-Set).
[0176] <SRS Transmission Power Control>
[0177] For example, the index l of the power control adjustment state can also be used, and the transmission power (P SRS、b,f,c (i, q s , l)) of the sounding reference signal (Sounding Reference Signal (SRS)) for the measurement of the activated UL BWP b for the carrier f of the serving cell c in the transmission occasion (also referred to as the transmission period, etc.) i of the SRS can be represented by the following formula (3).
[0178] The power control adjustment state can also be referred to as the SRS power control adjustment state, the value based on the TPC command, the cumulative value of the TPC command, the value based on closed-loop, the first or second state, etc. It can also be referred to as the closed-loop index.
[0179] In addition, the SRS transmission occasion i is a specific period during which the SRS is transmitted. For example, it can also be composed of more than one symbol, more than one time slot, etc.
[0180] [Equation 3]
[0181]
[0182] In Equation (3), P CMAX,f,c (i) is, for example, the maximum output power of the UE for the carrier f of the serving cell c in the SRS transmission occasion i. P O_SRS,b,f,c (q s ) is a parameter related to the target received power provided by the activated UL BWP b for the carrier f of the serving cell c and the SRS resource set q s (provided through the SRS-ResourceSet and SRS-ResourceSetId) p0 (for example, also referred to as a parameter related to the transmission power offset, the transmission power offset P0, or the target received power parameter, etc.).
[0183] M SRS,b,f,c (i) is the SRS bandwidth represented by the number of resource blocks of the SRS transmission occasion i on the activated UL BWP b for the carrier f of the serving cell c and the subcarrier spacing μ.
[0184] α SRS,b,f,c (q s ) is provided by the activated UL BWP b for the carrier f of the serving cell c and the subcarrier spacing μ, and the SRS resource set q s 's α (for example, alpha).
[0185] PL b,f,c (q d ) is the DL path loss estimate value [dB] calculated by the UE for the activated DL BWP of the serving cell c and the SRS resource set q s , using the RS resource index q d . The RS resource index q d is related to the SRS resource set q sThe associated path loss reference RS (DL RS for path loss measurement, provided, for example, by pathlossReferenceRS) is the SS / PBCH block index (e.g., ssb-Index) or the CSI-RS resource index (e.g., csi-RS-Index).
[0186] h b,f,c (i, l) is the SRS power control adjustment state for the activated UL BWP and SRS transmission opportunity i of carrier f for serving cell c. When the setting of the SRS power control adjustment state (e.g., srs-PowerControlAdjustmentStates) indicates the same power control adjustment state for SRS transmission and PUSCH transmission, h b,f,c (i, l) is the same as the current PUSCH power control adjustment state f b,f,c (i, l).
[0187] The transmission opportunity i of PUSCH, PUCCH, and SRS can also be defined by the slot index n within the frame of the system frame number SFN s,f μ , the first symbol S within the slot, and the number L of consecutive symbols. In the case of type B PUSCH transmission, the transmission opportunity of PUSCH can also be nominal repetition.
[0188] (The channel / RS to which the TCI state is applied)
[0189] The indication of the TCI state based on MAC CE / DCI ("indicated TCI state") can also be applied to the following channels / RSs.
[0190] [PDCCH]
[0191] ・When followUnifiedTCIState (following the unified TCI state) is set for CORESET0, the indicated TCI state is applied. Otherwise, for this CORESET, the Rel.15 specification is applied. That is, CORESET0 follows the TCI state activated by MAC CE or is QCL with the SSB.
[0192] ・For CORESETs other than index 0 associated with USS / CSS type 3, the indicated TCI state is always applied.
[0193] - When a CORESET other than index 0 that is associated with at least CSS other than CSS type 3 is configured to follow a unified TCI state, the indicated TCI state is applied. Otherwise, the configured TCI state for that CORESET is applied to that CORESET.
[0194] [PDSCH]
[0195] - For all UE-dedicated PDSCH, the indicated TCI state is always applied.
[0196] - For non-UE-dedicated PDSCH (PDSCH scheduled by DCI within CSS), when the CORESET for the PDCCH that schedules this PDSCH is configured with followUnifiedTCIState, the indicated TCI state can also be applied. Otherwise, the configured TCI state for that PDSCH is applied to that PDSCH. When followUnifiedTCIState is not configured for the PDSCH, whether the non-UE-dedicated PDSCH follows the indicated TCI state is determined by whether followUnifiedTCIState is configured for the CORESET used in the scheduling of this PDSCH.
[0197] [CSI-RS]
[0198] - For A-CSI-RS for CSI acquisition or beam management, when the CORESET for the PDCCH that triggers this A-CSI-RS is configured with followUnifiedTCIState, the indicated TCI state is applied. For other CSI-RS, the configured TCI state for that CSI-RS is applied.
[0199] [PUCCH]
[0200] - For all dedicated PUCCH resources, the indicated TCI state is always applied.
[0201] [PUSCH]
[0202] - For dynamic / configured grant PUSCH, the indicated TCI state is always applied.
[0203] [SRS]
[0204] ・ For the SRS resource set of A-SRS for beam management purposes and A / SP / P-SRS for codebook (CB) / non-codebook (NCB) / antenna switching purposes, when it is set to follow a unified TCI state, the indicated TCI state is applied. For other SRSs, the set TCI state within this SRS resource set is applied.
[0205] (Simultaneous multi-panel UL transmission (SiMPUL))
[0206] In future wireless communication systems (e.g., after Rel.18), for the improvement of UL throughput / reliability, research is being conducted on simultaneous UL transmission using multiple panels for one or more transmission / reception points (Transmission / Reception Point (TRP)) (e.g., simultaneous multi-panel UL transmission (SiMPUL), simultaneous UL transmission from multiple panels (STxMP)).
[0207] In this disclosure, simultaneous UL transmission using multiple panels, STxMP, SiMPUL, and UL transmission in the same time domain using multiple panels can be rewritten with each other.
[0208] In this disclosure, panels, receiving panels, UE panels, UE Capability value, UE Capability value set, panel groups, etc. can also be rewritten with each other.
[0209] <PUSCH for multiple TRPs based on single DCI>
[0210] Research is being conducted on the transmission of STxMP PUSCH for multiple TRPs based on single DCI to be transmitted by the following transmission methods:
[0211] ・ SDM (Spatial Division Multiplexing) scheme.
[0212] ・ FDM (Frequency Division Multiplexing)-B scheme.
[0213] ・ FDM-A scheme.
[0214] ・ Transmission scheme based on SFN (single frequency network).
[0215] - SDM repetition scheme.
[0216] The SDM scheme can also be a way in which different layers / DMRS ports of a PUSCH are independently precoded and transmitted simultaneously from different UE panels.
[0217] The FDM-B scheme can also be a way in which multiple (two) PUSCHs (transmission opportunities) of the same / different redundancy versions (RVs) of the same transport block (TB) are transmitted from different UE panels in non-overlapping frequency-domain resources and the same time-domain resources.
[0218] The FDM-A scheme can also be a way in which different parts in the frequency-domain resources of a PUSCH (transmission opportunity) are transmitted from different UE panels.
[0219] The SFN-based transmission scheme can also be a way in which all the same layers / DMRS ports of a PUSCH are transmitted simultaneously from multiple (two) different UE panels.
[0220] The SDM repetition scheme can also be a way in which multiple (two) PUSCHs (transmission opportunities) with different RVs of the same TB are transmitted simultaneously from multiple (two) different UE panels.
[0221] <PUSCH of Multi-TRP Based on Multi-DCI>
[0222] For the STxMP PUSCH of multi-TRP based on multi-DCI, it can also be that multiple (two) PUSCHs are associated with different TRPs. These different multiple PUSCHs can also be transmitted separately from different UE panels.
[0223] The total number of layers of N PUSCHs is 2×N.
[0224] In addition, these multiple PUSCHs can also be at least one of the PUSCH scheduled by DCI, the PUSCH with configured grant, and the PUSCH for message 3 / message A.
[0225] In addition, these multiple PUSCHs can also completely / partially overlap in the time domain, completely / partially overlap in the frequency domain, or do not overlap in the frequency domain.
[0226] <PUCCH of Multi-TRP Based on Single-DCI>
[0227] The STxMP PUCCH of multi-TRP based on single-DCI is being studied for transmission by the following transmission methods:
[0228] - FDM-A scheme.
[0229] - FDM-B scheme.
[0230] - SFN-based transmission scheme.
[0231] The FDM-A scheme can also be a way in which different frequency-domain parts of a PUCCH resource are transmitted from different UE panels.
[0232] The FDM-B scheme can also be a way in which multiple (two) PUCCHs (transmission opportunities) of the same UCI in the same PUCCH format are transmitted simultaneously from different UE panels by FDM.
[0233] The SFN-based transmission scheme can also be a way in which the same PUCCH / PUCCH with DMRS is transmitted simultaneously from different UE panels.
[0234] For each of the above schemes, the specific PUCCH formats supported are being studied.
[0235] <PUCCH for Multi-TRP Based on Multiple DCIs>
[0236] For the STxMP PUCCH for multi-TRP based on multiple DCIs, multiple (two) PUCCHs can also be associated with different TRPs. These different multiple PUCCHs can also be transmitted from different UE panels respectively.
[0237] In addition, these multiple PUCCHs can also overlap completely / partially in the time domain.
[0238] (Analysis)
[0239] However, in future wireless communication systems (e.g., after Rel.18), power control for UL transmission in multi-TRP operation on the premise of a unified TCI state framework is being studied.
[0240] In the unified TCI state in Rel.17, UL power control parameters (RRC information element "uplink-powerControl-r17") included in the setting of UE-specific UL BWP (RRC information element "BWP-UplinkDedicated") are provided to the UE (see Figure 5A ). In the case where the UL TCI state / joint TCI state of the serving cell is not set for the UE, this parameter is used for the transmission power control of UL transmission.
[0241] The UL power control parameter ID (Uplink-powerControlId-r17) is included in the UL power control parameter (RRC information element "uplink-powerControl-r17"), and the UL power control parameter is identified by this ID.
[0242] The UL power control parameter (RRC information element "uplink-powerControl-r17") includes at least one of the set of P0 and α for PUSCH (p0AlphaSetforPUSCH-r17), the set of P0 and α for PUCCH (p0AlphaSetforPUCCH-r17), and the set of P0 and α for SRS (p0AlphaSetforSRS-r17), which is used for the transmission power control of each channel / signal (see Figure 5B ).
[0243] After Rel.18, the unified TCI state framework is extended to multi-TRP operation.
[0244] The setting of the power control parameter when the UL TCI state / joint TCI state is not set (for example, it can also be called the setting of the default power control parameter) is being studied and utilized for the operation of multi-TRP using the unified TCI state.
[0245] However, when multiple default power control parameter settings are configured, the association / mapping for these multiple settings, multiple TRPs, and multiple (UE) panels is not well studied. In particular, the following UL transmissions are not well studied:
[0246] - PUSCH repetition of single DCI multi-TRP (specified in Rel.17).
[0247] - PUCCH repetition of single DCI multi-TRP (specified in Rel.17).
[0248] - STxMP PUSCH of single DCI (specified in Rel.18).
[0249] - STxMP PUCCH of single DCI (specified in Rel.18).
[0250] - STxMP PUSCH of multi-DCI (specified in Rel.18).
[0251] - STxMP PUCCH of multi-DCI (specified in Rel.18).
[0252] ・SRS in multi-TRP / STxMP PUSCH.
[0253] If this research is insufficient, there are concerns such as a decrease in communication quality and throughput.
[0254] Therefore, the inventors of the present invention have come up with a method for appropriately performing power control of UL transmission even in operations related to unified TCI states or operations of UL transmission of STxMP.
[0255] Hereinafter, embodiments related to the present disclosure will be described in detail with reference to the drawings. The wireless communication methods related to the respective embodiments can be applied separately or in combination.
[0256] In the present disclosure, "A / B" and "at least one of A and B" can also be rewritten with each other. Further, in the present disclosure, "A / B / C" can also mean "at least one of A, B, and C".
[0257] In the present disclosure, notification, activation, deactivation, indication (or specify (indicate)), selection (select), configuration (configure), update (update), determination (determine), etc. can also be rewritten with each other. In the present disclosure, support, control, be able to control, operation, be able to operate, etc. can also be rewritten with each other.
[0258] In the present disclosure, Radio Resource Control (RRC), RRC parameters, RRC messages, higher layer parameters, fields, Information Element (IE), configurations, etc. can also be rewritten with each other. In the present disclosure, Medium Access Control control element (MAC control element (MAC Control Element (CE))), update command, activation / deactivation command, etc. can also be rewritten with each other.
[0259] In the present disclosure, higher layer signaling can also be any one of, for example, Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, or a combination thereof.
[0260] In the present disclosure, MAC signaling may also use, for example, a MAC control element (MACCE), a MAC protocol data unit (PDU), etc. Broadcast information may also be, for example, a master information block (MIB), a system information block (SIB), minimum system information (remaining minimum system information (RMSI)), other system information (OSI), etc.
[0261] In the present disclosure, physical layer signaling may also be, for example, downlink control information (DCI), uplink control information (UCI), etc.
[0262] In the present disclosure, an index, an identifier (ID), an indicator, a resource ID, etc. may also be rewritten with each other. In the present disclosure, a sequence, a list, a set (collection (set)), a group, a cluster, a subset, etc. may also be rewritten with each other.
[0263] In the present disclosure, the panel, receiving panel, UE panel, UE capability value (UE Capability value), UE Capability value set, panel group, beam, beam group, precoder, uplink (Uplink (UL)) transmission entity, transmission / reception point (Transmission / Reception Point (TRP)), base station, spatial relation information (Spatial Relation Information (SRI)), spatial relation, SRS resource indicator (SRS Resource Indicator (SRI)), control resource set (COntrol REsource SET (CORESET)), physical downlink shared channel (Physical Downlink Shared Channel (PDSCH)), codeword (Codeword (CW)), transport block (Transport Block (TB)), reference signal (Reference Signal (RS)), antenna port (e.g., demodulation reference signal (DeModulation Reference Signal (DMRS)) port), antenna port group (e.g., DMRS port group), group (e.g., spatial relation group, code division multiplexing (Code Division Multiplexing (CDM)) group, reference signal group, CORESET group, physical uplink control channel (Physical Uplink ControlChannel (PUCCH)) group, PUCCH resource group), resource (e.g., reference signal resource, SRS resource), resource set (e.g., reference signal resource set), CORESET pool, transmission configuration indication state (TCI state) of the downlink (DL TCI state), TCI state of the uplink (UL TCI state), unified TCI state, common TCI state, indicated TCI state, quasi-co-location (Quasi-Co-Location (QCL)), QCL assumption, etc. can also be rewritten with each other.
[0264] In addition, the spatial relationship information identifier (Identifier (ID)) (TCI status ID) and the spatial relationship information (TCI status) can also be rewritten with each other. "Spatial relationship information" can also be rewritten with "set of spatial relationship information", "one or more spatial relationship information", etc. The TCI status and TCI can also be rewritten with each other.
[0265] In addition, the panel identifier (Identifier (ID)) and the panel can also be rewritten with each other. That is, the TRP ID and the TRP, the CORESET group ID and the CORESET group, etc. can also be rewritten with each other.
[0266] In the present disclosure, one of the TRP, the transmission point, the panel, the DMRS port group, the CORESET pool, and two TCI statuses associated with one code point of the TCI field can also be rewritten with each other.
[0267] In the present disclosure, the transmission / reception of a channel / signal using a single TRP can also be rewritten as in the transmission / reception of the channel / signal (e.g., NCJT / CJT / repetition), the TCI status (joint / independent / indicated TCI status) is equal, or, in the transmission / reception of the channel / signal (e.g., NCJT / CJT / repetition), the number of TCI statuses (joint / independent / indicated TCI status) is one.
[0268] The transmission / reception of a channel / signal using a single TRP can also be rewritten as in the transmission / reception of the channel / signal (e.g., NCJT / CJT / repetition), the TCI status (joint / independent / indicated TCI status) is different, or, in the transmission / reception of the channel / signal (e.g., NCJT / CJT / repetition), the number of different TCI statuses (joint / independent / indicated TCI status) is multiple (e.g., two).
[0269] In the present disclosure, a single (one) TRP, a single TRP system, a single TRP transmission, and a single PDSCH can also be rewritten with each other. In the present disclosure, multiple TRPs, a multi-TRP system, a multi-TRP transmission, and multiple PDSCHs can also be rewritten with each other.
[0270] In the present disclosure, a single DCI, a single PDCCH, multi-TRPs based on a single DCI, two TCI statuses are activated on at least one TCI code point, at least one code point of the TCI field is mapped to two TCI statuses, and a specific index (e.g., a TRP index, a CORESET pool index, or an index corresponding to the TRP) is set for a specific channel / CORESET can also be rewritten with each other.
[0271] In the present disclosure, a single TRP, a channel / signal using a single TRP, a channel using one TCI state / spatial relation, multiple TRPs not activated by RRC / DCI, multiple TCI states / spatial relations not activated by RRC / DCI, a CORESET pool index (CORESETPoolIndex) value not set to 1 for any CORESET, and no code point of the TCI field being mapped to two TCI states can also be rewritten with each other.
[0272] In the present disclosure, multiple TRPs, a channel / signal using multiple TRPs, a channel using multiple TCI states / spatial relations, multiple TRPs activated by RRC / DCI, multiple TCI states / spatial relations activated by RRC / DCI, at least one of a multi-TRP based on a single DCI and a multi-TRP based on multiple DCIs can also be rewritten with each other.
[0273] In the present disclosure, a multi-TRP based on multiple DCIs, a CORESET pool index (CORESETPoolIndex) value set to 1 for a CORESET, and multiple specific indexes (e.g., a TRP index, a CORESET pool index, or an index corresponding to a TRP) set for a specific channel / CORESET can also be rewritten with each other.
[0274] In the present disclosure, TRP#1 (the first TRP) can correspond to either a CORESET pool index = 0 or the first TCI state among two TCI states corresponding to one code point of the TCI field. TRP#2 (the second TRP) can correspond to either a CORESET pool index = 1 or the second TCI state among two TCI states corresponding to one code point of the TCI field.
[0275] In the present disclosure, a single DCI (sDCI), a single PDCCH, a multi-TRP system based on a single DCI, an MTRP based on sDCI, and two TCI states being activated on at least one TCI code point can also be rewritten with each other.
[0276] In the present disclosure, multiple DCIs (mDCI), multiple PDCCHs, a multi-TRP system based on multiple DCIs, an MTRP based on mDCI, and two CORESET pool indexes being set or a CORESET pool index = 1 (or a value greater than or equal to 1) can also be rewritten with each other.
[0277] In the present disclosure, a beam indication DCI, a beam indication MAC CE, and a beam indication DCI / MAC CE can also be rewritten with each other. In other words, an indication related to the TCI state for a UE can also be performed using at least one of a DCI and a MAC CE.
[0278] In the present disclosure, repetition, repeated transmission, and repeated reception can also be rewritten as each other.
[0279] In the present disclosure, a channel, a signal, and a channel / signal can also be rewritten as each other. In the present disclosure, a DL channel, a DL signal, a DL signal / channel, transmission / reception of a DL signal / channel, DL reception, and DL transmission can also be rewritten as each other. In the present disclosure, a UL channel, a UL signal, a UL signal / channel, transmission / reception of a UL signal / channel, UL reception, and UL transmission can also be rewritten as each other.
[0280] In the present disclosure, applying the TCI state / QCL assumption to each channel / signal / resource can also mean applying the TCI state / QCL assumption to the transmission and reception of each channel / signal / resource.
[0281] In the present disclosure, the first TRP can also correspond to the first TCI state. In the present disclosure, the second TRP can also correspond to the second TCI state. In the present disclosure, the nth TRP can also correspond to the nth TCI state.
[0282] In the present disclosure, the value of the first CORESET pool index (e.g., 0), the value of the first TRP index (e.g., 1), and the first TCI state (the first DL / UL (joint / independent) TCI state) can also correspond to each other. In the present disclosure, the value of the second CORESET pool index (e.g., 1), the value of the second TRP index (e.g., 2), and the second TCI state (the second DL / UL (joint / independent) TCI state) can also correspond to each other.
[0283] In addition, in each of the following embodiments of the present disclosure, for the application of multiple TCI states in the transmission and reception using multiple TRPs, a method targeting two TRPs (i.e., the case where at least one of N and M is 2) is mainly described, but the number of TRPs can also be 3 or more (multiple), and each embodiment can also be applied corresponding to the number of TRPs. In other words, at least one of N and M can also be a number greater than 2.
[0284] In the present disclosure, receiving a DL signal (PDSCH / PDCCH) using an SFN can also mean receiving from multiple transmission and reception points using the same time / frequency resource and / or the same data (PDSCH) / control information (PDCCH). In addition, receiving a DL signal using an SFN can also mean receiving the same data / control information using multiple TCI states / space domain filters / beams / QCLs.
[0285] In the present disclosure, the default power control setting, the default power control parameter, the power control parameter used when the UL TCI state / Combined TCI state is not set, the power control setting used when the UL TCI state / Combined TCI state is not set, the UL transmission power setting, the UL transmission power parameter, the power control setting, the power control parameter, etc. can also rewrite each other.
[0286] (Wireless communication method)
[0287] The UE can also control the transmission power of UL transmission based on multiple power control settings (PC setting(s)).
[0288] These two power control settings can also be, for example, the first UL power control parameter (power control setting) and the second UL power control parameter (power control setting).
[0289] For example, as Figure 6 shown, within the setting of the UE-specific UL BWP (for example, BWP-UplinkDedicated), the first UL power control parameter (for example, uplink-powerControl-r17) and the second UL power control parameter (for example, uplink-powerControl-TRP2-r18) (structure A) can also be included. These parameters can also both represent the UL power control parameter ID (Uplink-powerControlId-r17).
[0290] In structure A, in the operation of multiple TRPs, the first UL power control parameter (for example, uplink-powerControl-r17) can also be used for the transmission power control for the first TRP. In addition, the second UL power control parameter (for example, uplink-powerControl-TRP2-r18) can also be used for the transmission power control for the second TRP.
[0291] In addition, in structure A, in the operation of a single TRP, the first UL power control parameter (for example, uplink-powerControl-r17) can also be used.
[0292] In addition, in structure A, the first power control setting can also refer to the power control setting provided by the parameter specified in Rel.17. In addition, in structure A, the second power control setting can also refer to the power control setting provided by the parameter specified in Rel.18.
[0293] In addition, for example, as Figure 7As shown, uplink-powerControl-r17 and the first / second UL power control parameters (e.g., uplink-powerControl-MTRP-r18) can also be included within the configuration of the UE-specific UL BWP (e.g., BWP-UplinkDedicated) (Structure B).
[0294] The uplink-powerControl-r17 can also represent a UL power control parameter ID (e.g., Uplink-powerControlId-r17).
[0295] The first / second UL power control parameters (e.g., uplink-powerControl-MTRP-r18) can also have a specific number of magnitudes (e.g., specified by the maximum default power control setting parameter (e.g., maxDefaultPCsettings)).
[0296] The first / second UL power control parameters (e.g., uplink-powerControl-MTRP-r18) can also represent multiple (e.g., two) UL power control parameter IDs (e.g., Uplink-powerControlId-r17). The first / second UL power control parameters (e.g., uplink-powerControl-MTRP-r18) can also be a list containing multiple (e.g., two) UL power control parameter IDs (e.g., Uplink-powerControlId-r17).
[0297] In Structure B, uplink-powerControl-r17 can also be used in the operation of a single TRP. Additionally, in multi-TRP operation, the first / second UL power control parameters (e.g., uplink-powerControl-MTRP-r18) can also be used for transmit power control for the first / second TRP.
[0298] Furthermore, maxDefaultPCsettings can also be associated with the number of panels / TRPs. For example, in the case of two default power control settings for transmissions using two panels / TRPs, maxDefaultPCsettings can also be 2.
[0299] Additionally, in Structure B, for the first / second power control settings, the UE can also refer to the list provided by the first / second power control settings.
[0300] For the first UL power control parameter, the UE may also refer to a lower (or higher) UL power control parameter ID (e.g., Uplink-powerControlId).
[0301] For the second UL power control parameter, the UE may also refer to a higher (or lower) UL power control parameter ID (e.g., Uplink-powerControlId).
[0302] The first / second UL power control parameter may also include at least one of a set of P0 and α for PUSCH (e.g., p0AlphaSetforPUSCH-r17), a set of P0 and α for PUCCH (e.g., p0AlphaSetforPUCCH-r17), and a set of P0 and α for SRS (e.g., p0AlphaSetforSRS-r17).
[0303] The UE may also control the transmission power of the PUSCH corresponding to each TRP based on a set of P0 and α for PUSCH (e.g., p0AlphaSetforPUSCH-r17) corresponding to the UL power control parameter ID included in the first / second UL power control parameter.
[0304] The UE may also control the transmission power of the PUCCH corresponding to each TRP based on a set of P0 and α for PUCCH (e.g., p0AlphaSetforPUCCH-r17) corresponding to the UL power control parameter ID included in the first / second UL power control parameter.
[0305] The UE may also control the transmission power of the SRS corresponding to each TRP based on a set of P0 and α for SRS (e.g., p0AlphaSetforSRS-r17) corresponding to the UL power control parameter ID included in the first / second UL power control parameter.
[0306] In addition, in the following embodiments of the present disclosure, the PUSCH / PUCCH of multiple TRPs and the PUSCH / PUCCH of a single TRP may also be dynamically switched (e.g., using a specific field of DCI).
[0307] Furthermore, in the following embodiments of the present disclosure, the PUSCH / PUCCH of STxMP and the PUSCH / PUCCH of a single panel are dynamically switched (e.g., using a specific field of DCI).
[0308] This specific field may be, for example, an SRS resource set indicator field included in the DCI for scheduling PUSCH, or a new field defined after Rel.18.
[0309] The UE can also determine the correspondence / mapping between the first / second UL power control parameters and the first / second TRPs based on specific information / conditions / methods. The specific information / conditions / methods are described in detail in the following First - Seventh Embodiments.
[0310] <First Embodiment>
[0311] In this embodiment, UL transmission using multiple TRPs is described.
[0312] In this disclosure, UL transmission using multiple TRPs can also be at least one of the following UL channels / signals:
[0313] ・ Repeated PUSCH with single DCI and multiple TRPs (specified in Rel.17).
[0314] ・ Repeated PUCCH with single DCI and multiple TRPs (specified in Rel.17).
[0315] ・ STxMP PUSCH with single DCI (specified in Rel.18).
[0316] ・ STxMP PUCCH with single DCI (specified in Rel.18).
[0317] ・ STxMP PUSCH with multiple DCIs (specified in Rel.18).
[0318] ・ STxMP PUCCH with multiple DCIs (specified in Rel.18).
[0319] ・ SRS in multi - TRP / STxMP PUSCH.
[0320] The first power control setting can also correspond to the first TCI state. The second power control setting can also correspond to the second TCI state. The nth power control setting can also correspond to the nth TCI state.
[0321] In UL transmission with multi - TRP / STxMP, the correspondence / mapping between multiple (e.g., two) power control settings and UL transmission (e.g., PUSCH / PUCCH / SRS) can also be the same as the correspondence / mapping between multiple (e.g., two) TCI states and UL transmission (e.g., PUSCH / PUCCH / SRS).
[0322] The correspondence / mapping between multiple (e.g., two) TCI states and UL transmissions (e.g., PUSCH / PUCCH / SRS) can also be determined / set based on a specific method / condition. The specific method / condition can also be, for example, the method / condition specified in Rel.18.
[0323] In UL transmissions of a single TRP / single panel, when the first / second TCI state is used for the UL transmission (e.g., PUSCH / PUCCH / SRS), the UE can also use the first / second power control setting for the UL transmission.
[0324] Multiple (e.g., two) TCI states can also be multiple (e.g., two) indicated TCI states (UL TCI state / joint (DL-UL) TCI state).
[0325] Multiple (first / second) TCI states can also be TCI states that are activated by MAC CE and mapped to DCI code points (code points of TCI fields).
[0326] Multiple (first / second) TCI states can also be TCI states corresponding to specific TCI state IDs. For example, the first TCI state can also be a TCI state corresponding to a lower (or higher) TCI state ID. For example, the second TCI state can also be a TCI state corresponding to a higher (or lower) TCI state ID.
[0327] In the case where the UE is indicated two TCI fields, the first / second TCI state can also be the TCI state indicated by the first / second TCI field.
[0328] For multi-TRP / STxMP based on multi-DCI, the first TCI state can also be a TCI state associated with a lower (or higher) CORESET pool index. In addition, for multi-TRP / STxMP based on multi-DCI, the second TCI state can also be a TCI state associated with a higher (or lower) CORESET pool index.
[0329] According to the above first embodiment, the association between UL transmission and TCI state can be appropriately performed.
[0330] <Second Embodiment>
[0331] This embodiment relates to PUSCH.
[0332] The PUSCH of this embodiment can also be, for example, a PUSCH (repetition) using multi-TRP.
[0333] This embodiment is roughly divided into the following options 2-0 to 2-3. The UE / base station may also follow at least one of the following options 2-0 to 2-3.
[0334] 《Option 2-0》
[0335] For PUSCH (repetition) using multiple TRPs, multiple (two) power control settings may not be applied.
[0336] For PUSCH (repetition) using multiple TRPs, the UE may also not apply multiple (two) power control settings.
[0337] In this disclosure, regarding whether to apply multiple (two) power control settings in PUSCH (repetition) using multiple TRPs, it may also be determined / set for each CC / cell / BWP / band.
[0338] 《Option 2-1》
[0339] The first power control setting may also correspond to the first (codebook (CB) / non-codebook (NCB)) SRS resource set.
[0340] The second power control setting may also correspond to the second (CB / NCB) SRS resource set.
[0341] The first (CB / NCB) SRS resource set may also be the SRS resource set corresponding to a lower (or higher) SRS resource set ID.
[0342] The second (CB / NCB) SRS resource set may also be the SRS resource set corresponding to a higher (or lower) SRS resource set ID.
[0343] For PUSCH of multiple TRPs, the UE may also determine that the correspondence / mapping between the first / second power control setting and PUSCH (repetition) is the same as the correspondence / mapping between the first / second SRS resource set and PUSCH (repetition).
[0344] For PUSCH of a single TRP, when the first / second SRS resource set is used in the PUSCH, the UE may also determine to use the first / second power control setting for the PUSCH.
[0345] The correspondence / mapping between the first / second SRS resource set and PUSCH (repetition) may also be the same as the correspondence / mapping specified in Rel.17.
[0346] Option 2-2
[0347] The first power control setting may also correspond to the first SRI field.
[0348] The second power control setting may also correspond to the second SRI field.
[0349] For PUSCH with multiple TRPs, the UE may also determine that the correspondence / mapping between the first / second power control setting and PUSCH (repetition) is the same as the correspondence / mapping between the first / second SRI field and PUSCH (repetition).
[0350] For PUSCH with a single TRP, when the first / second SRI field is used in the PUSCH, the UE may also determine to use the first / second power control setting for the PUSCH.
[0351] The correspondence / mapping between the first / second SRI field and PUSCH (repetition) may also be the same as the correspondence / mapping specified in Rel.17.
[0352] Option 2-3
[0353] The correspondence / mapping between the first / second power setting and PUSCH (repetition) may also be specified.
[0354] For example, in the case of a single TRP using the first TRP (e.g., when the SRS resource set indicator field indicates the first value (e.g., "00")), the UE may also apply the first power control to multiple (e.g., all) PUSCH (repetition).
[0355] For example, in the case of a single TRP using the second TRP (e.g., when the SRS resource set indicator field indicates the second value (e.g., "01")), the UE may also apply the second power control to multiple (e.g., all) PUSCH (repetition).
[0356] For example, in the case of multiple TRPs in the order of the first TRP and the second TRP (e.g., when the SRS resource set indicator field indicates the third value (e.g., "10")), and when the number of repetitions is a specific number (e.g., 2), the UE may also apply the first power control setting to the first repetition and the second power control setting to the second repetition.
[0357] For example, in the case of multi-TRP in the order of the first TRP and the second TRP (for example, when the SRS resource set indicator field represents a third value (for example, "10")), and when the number of repetitions is greater than a specific number (for example, 2) and cyclic mapping (for example, cyclicMapping) is enabled, the UE may also apply the first power control setting to the first repetition and the second power control setting to the second repetition. In addition, the UE may also apply the same mapping pattern to the remaining repetitions.
[0358] For example, in the case of multi-TRP in the order of the first TRP and the second TRP (for example, when the SRS resource set indicator field represents a third value (for example, "10")), and when the number of repetitions is greater than a specific number (for example, 2) and sequential mapping (for example, sequentialMapping) is enabled, the UE may also apply the first power control setting to multiple (for example, the first and second) repetitions and the second power control setting to other multiple (for example, the third and fourth) repetitions. In addition, the UE may also apply the same mapping pattern to the remaining repetitions.
[0359] For example, in the case of multi-TRP in the order of the second TRP and the first TRP (for example, when the SRS resource set indicator field represents a fourth value (for example, "11")), and when the number of repetitions is a specific number (for example, 2), the UE may also apply the second power control setting to the first repetition and the first power control setting to the second repetition.
[0360] For example, in the case of multi-TRP in the order of the second TRP and the first TRP (for example, when the SRS resource set indicator field represents a fourth value (for example, "11")), and when the number of repetitions is greater than a specific number (for example, 2) and cyclic mapping (for example, cyclicMapping) is enabled, the UE may also apply the second power control setting to the first repetition and the first power control setting to the second repetition. In addition, the UE may also apply the same mapping pattern to the remaining repetitions.
[0361] For example, in the case of multi-TRP in the order of the second TRP and the first TRP (for example, when the SRS resource set indicator field represents a fourth value (for example, "11")), and when the number of repetitions is greater than a specific number (for example, 2) and sequential mapping (for example, sequentialMapping) is enabled, the UE may also apply the second power control setting to multiple (for example, the first and second) repetitions and the first power control setting to other multiple (for example, the third and fourth) repetitions. In addition, the UE may also apply the same mapping pattern to the remaining repetitions.
[0362] Alternatively, it is also possible to support / stipulate only the application method in the case where the above SRS resource set indicator field is the first value (e.g., "00") / the second value (e.g., "01"), and it can also be set for the UE through higher layer signaling (RRC / MAC CE).
[0363] Alternatively, it is also possible to support / stipulate only the application method in the case where the above SRS resource set indicator field is the third value (e.g., "10") / the fourth value (e.g., "11"), and it can also be set for the UE through higher layer signaling (RRC / MAC CE).
[0364] In addition, the above SRS resource set indicator field is just an example, and it can also be rewritten as any (specific) field included in the DCI. This specific field can also be, for example, a field indicating the handover between single TRP and multi-TRP (specified after Rel.18). In addition, regarding the above code point values, they are just examples and can also be replaced with other values.
[0365] According to the above second embodiment, it is possible to appropriately control the transmission power of the PUSCH of the multi-TRP.
[0366] <Third Embodiment>
[0367] This embodiment relates to PUCCH.
[0368] The PUCCH of this embodiment can also be, for example, the PUSCH (repetition) of the multi-TRP.
[0369] This embodiment is roughly divided into the following Option 3-0 and Option 3-1. The UE / base station can also follow at least one of the following Option 3-0 and Option 3-1.
[0370] <<Option 3-0>>
[0371] For the PUCCH (repetition) using the multi-TRP, it is also possible not to apply multiple (two) power control settings.
[0372] For the PUCCH (repetition) using the multi-TRP, the UE can also not apply multiple (two) power control settings.
[0373] In this disclosure, regarding whether to apply multiple (two) power control settings in the PUCCH (repetition) using the multi-TRP, it can also be determined / set for each CC / cell / BWP / band / PUCCH resource.
[0374] <<Option 3-1>>
[0375] The correspondence / mapping between the first / second power setting and PUCCH (repetition) can also be specified.
[0376] For example, in the case of multiple TRPs and when the number of repetitions is a specific number (e.g., 2), the UE can also apply the first power control setting to the first repetition and the second power control setting to the second repetition.
[0377] For example, in the case of multiple TRPs and when the number of repetitions is greater than a specific number (e.g., 2) and cyclic mapping (e.g., cyclicMapping) is enabled, the UE can also apply the first power control setting to the first repetition and the second power control setting to the second repetition. In addition, the UE can also apply the same mapping pattern to the remaining repetitions.
[0378] For example, in the case of multiple TRPs and when the number of repetitions is greater than a specific number (e.g., 2) and sequential mapping (e.g., sequentialMapping) is enabled, the UE can also apply the first power control setting to multiple (e.g., the first and second) repetitions and the second power control setting to other multiple (e.g., the third and fourth) repetitions. In addition, the UE can also apply the same mapping pattern to the remaining repetitions.
[0379] In the case of multiple TRPs, the mapping method described in Option 2-3 above can also be applied to PUCCH. For example, the mapping method corresponding to the order of the first TRP and the second TRP and the mapping method corresponding to the order of the second TRP and the first TRP can also be set / indicated for the UE. This setting can also be performed using higher layer signaling (RRC / MAC CE), and this indication can also be performed using DCI.
[0380] In addition, for example, in the case of a single TRP, it can also be pre-specified which of the first power control setting and the second power control setting is applied to PUCCH. For example, it can be specified that the first (or second) power control setting is applied to PUCCH.
[0381] For example, in the case of a single TRP, regarding which of the first power control setting and the second power control setting is applied to PUCCH, it can also be set / indicated for the UE from the network (base station). For example, it is set / indicated for the UE that the first (or second) power control setting is applied to PUCCH.
[0382] This setting can also be performed (semi-statically) using higher-layer signaling (RRC / MAC CE), and this indication can also be performed (dynamically) using DCI. This setting can also be, for example, a setting for each CC / cell / BWP / band / PUCCH resource.
[0383] According to the above third embodiment, the transmission power of the PUCCH of multiple TRPs can be appropriately controlled.
[0384] <Fourth Embodiment>
[0385] This embodiment relates to PUSCH.
[0386] The PUSCH of this embodiment can also be, for example, a PUSCH of STxMP (based on a single DCI).
[0387] This embodiment is roughly divided into the following options 4-0 to 4-7. The UE / base station can also follow at least one of the following options 4-0 to 4-7.
[0388] <Option 4-0>
[0389] For the PUSCH of STxMP (based on a single DCI), multiple (two) power control settings may not be applied.
[0390] For the PUSCH of STxMP (based on a single DCI), the UE may not apply multiple (two) power control settings.
[0391] In this disclosure, regarding whether to apply multiple (two) power control settings in the PUSCH of STxMP (based on a single DCI), it can be determined / set for each CC / cell / BWP / band.
[0392] <Option 4-1>
[0393] The first power control setting can also correspond to a first SRS resource set (of a codebook (CB) / non-codebook (NCB)).
[0394] The second power control setting can also correspond to a second SRS resource set (of a codebook (CB) / non-codebook (NCB)).
[0395] The first SRS resource set (of a codebook (CB) / non-codebook (NCB)) can also be an SRS resource set corresponding to a lower (or higher) SRS resource set ID.
[0396] The second SRS resource set (of a codebook (CB) / non-codebook (NCB)) can also be an SRS resource set corresponding to a lower (or higher) SRS resource set ID.
[0397] <Option 4-2>
[0398] The first power control setting may also correspond to the first SRI field.
[0399] The second power control setting may also correspond to the second SRI field.
[0400] "Option 4-3"
[0401] The first power control setting may also correspond to the first panel.
[0402] The second power control setting may also correspond to the second panel.
[0403] The first panel may also be the panel corresponding to the ID associated with the lower (or higher) panel.
[0404] The second panel may also be the panel corresponding to the ID associated with the higher (or lower) panel.
[0405] "Option 4-4"
[0406] The UE may also use multiple (two) panels to transmit multiple (two) codewords (CWs) in one PUSCH.
[0407] At this time, the first power control setting may also correspond to the first CW. The second power control setting may also correspond to the second CW.
[0408] "Option 4-5"
[0409] The UE may also use multiple (two) panels to transmit DMRSs of different DMRS CDM groups.
[0410] At this time, the first power control setting may also correspond to the first DMRS CDM group. The second power control setting may also correspond to the second DMRS CDM group.
[0411] The first DMRS CDM group may also be the CDM group corresponding to the lower (or higher) ID.
[0412] The second DMRS CDM group may also be the CDM group corresponding to the higher (or lower) ID.
[0413] The first DMRS CDM group may also mean the CDM group of the first DMRS indicated in the antenna port field within the DCI. The second DMRS CDM group may also mean the CDM group other than the CDM group of the first DMRS.
[0414] "Option 4-6"
[0415] The UE may also use multiple (two) panels to transmit different layers of one PUSCH.
[0416] At this time, the first power control setting can also correspond to a set of layers. The second power control setting can also correspond to a set of layers.
[0417] The set of the first layer can also mean the first K layers. The set of the second layer can also mean the layers other than the first K layers.
[0418] This K can be either pre-specified in the specification or set / indicated from the network to the UE. For example, this K can also be determined based on the rank indication of multiple (two) panels.
[0419] "Option 4-7"
[0420] The UE can also use multiple (two) panels and use different multiple frequency-domain resources to transmit a PUSCH.
[0421] In addition, the UE can also use different multiple sets of frequency-domain resources to transmit repetitions of multiple (two) PUSCHs.
[0422] In these cases, the first power control setting can also correspond to the first set of frequency-domain resources. The second power control setting can also correspond to the second set of frequency-domain resources.
[0423] The first set of frequency-domain resources can also be the set of frequency-domain resources with a lower (or higher) starting resource block index.
[0424] The second set of frequency-domain resources can also be the set of frequency-domain resources with a higher (or lower) starting resource block index.
[0425] In at least one of the above Options 4-1 to 4-3, in the case of STxMP PUSCH, the UE can also determine that the correspondence / mapping between the first / second power control setting and the PUSCH is the same as the correspondence / mapping between the first / second SRS resource set and the PUSCH.
[0426] In at least one of the above Options 4-1 to 4-3, in the case of STxMP PUSCH, the UE can also determine that the correspondence / mapping between the first / second power control setting and the PUSCH is the same as the correspondence / mapping between the first / second SRI field and the PUSCH.
[0427] In at least one of the above options 4-1 to 4-3, in the case of STxMP PUSCH, the UE can also determine that the correspondence / mapping between the first / second power control setting and the PUSCH and the correspondence / mapping between the first / second panel and the PUSCH are the same.
[0428] In at least one of the above options 4-1 to 4-3, in the case of single-TRP PUSCH, and in the case where at least one of the first / second SRS resource sets, the first / second SRI fields, and the first / second panels is used in the PUSCH, the UE can also determine to use the first / second power control setting for the PUSCH.
[0429] For at least one of the above options 4-4 to 4-7, in the case of STxMP PUSCH, at least one of the above options 4-4 to 4-7 can also be applied.
[0430] In addition, for at least one of the above options 4-4 to 4-7, in the case of single-panel PUSCH, it can also be pre-specified which of the first power control setting and the second power control setting is applied to the PUSCH. For example, it can also be specified that the first (or second) power control setting is applied to the PUSCH.
[0431] In addition, for at least one of the above options 4-4 to 4-7, in the case of single-panel PUSCH, regarding which of the first power control setting and the second power control setting is applied to the PUSCH, it can also be set / indicated for the UE from the network (base station). For example, it is set / indicated for the UE that the first (or second) power control setting is applied to the PUSCH.
[0432] This setting can also be performed (semi-statically) using high-layer signaling (RRC / MAC CE), and this indication can also be performed (dynamically) using DCI. This setting can also be, for example, a setting for each CC / cell / BWP / band.
[0433] According to the above fourth embodiment, the transmission power of STxMP PUSCH can be appropriately controlled.
[0434] <Fifth Embodiment>
[0435] This embodiment relates to PUCCH.
[0436] The PUCCH of this embodiment can also be, for example, (single-DCI-based) STxMP PUCCH.
[0437] This embodiment is roughly divided into the following options 5-0 to 5-3. The UE / base station can also follow at least one of the following options 5-0 to 5-3.
[0438] Option 5-0
[0439] For the PUCCH of (single-DCI-based) STxMP, multiple (two) power control settings may not be applied either.
[0440] For the PUCCH of (single-DCI-based) STxMP, the UE may also not apply multiple (two) power control settings.
[0441] In this disclosure, whether to apply multiple (two) power control settings in the PUCCH of (single-DCI-based) STxMP may also be determined / set for each CC / cell / BWP / band / PUCCH resource.
[0442] Option 5-1
[0443] The first power control setting may also correspond to the first panel.
[0444] The second power control setting may also correspond to the second panel.
[0445] The first panel may also be the panel corresponding to the ID related to the lower (or higher) panel.
[0446] The second panel may also be the panel corresponding to the ID related to the higher (or lower) panel.
[0447] For the STxMP PUCCH, the UE may also determine that the correspondence / mapping between the first / second power control setting and the PUCCH and the correspondence / mapping between the first / second panel and the PUCCH are the same.
[0448] For the PUCCH of a single panel, when the first / second panel is used in this PUCCH, the UE may also determine to use the first / second power control setting for this PUCCH.
[0449] Option 5-2
[0450] The UE may also use multiple (two) panels and use different multiple frequency-domain resources to transmit one PUCCH.
[0451] In addition, the UE may also use different multiple (sets of) frequency-domain resources to transmit multiple (two) repetitions of PUCCH.
[0452] In these cases, the first power control setting may also correspond to the first (set of) frequency-domain resources. The second power control setting may also correspond to the second (set of) frequency-domain resources.
[0453] The first frequency-domain resource (set) can also be a frequency-domain resource (set) with a lower (or higher) starting resource block index.
[0454] The second frequency-domain resource (set) can also be a frequency-domain resource (set) with a higher (or lower) starting resource block index.
[0455] "Option 5-3"
[0456] Multiple (two) PUCCH resources can also be indicated for the UE.
[0457] In this case, the first power control setting can also correspond to the first PUCCH resource. The second power control setting can also correspond to the second PUCCH resource.
[0458] The first PUCCH resource can also be a PUCCH resource with a lower (or higher) PUCCH resource ID.
[0459] The second PUCCH resource can also be a PUCCH resource with a higher (or lower) PUCCH resource ID.
[0460] For at least one of the above Options 5-2 and 5-3, in the case of STxMP PUCCH, at least one of the above Options 5-2 and 5-3 can also be applied.
[0461] In addition, for at least one of the above Options 5-2 and 5-3, in the case of single-panel PUCCH, it can also be pre-specified which of the first power control setting and the second power control setting is applied to the PUCCH. For example, it can be specified that the first (or second) power control setting is applied to the PUCCH.
[0462] In addition, for at least one of the above Options 5-2 and 5-3, in the case of single-panel PUCCH, regarding which of the first power control setting and the second power control setting is applied to the PUCCH, it can also be set / indicated for the UE from the network (base station). For example, it is set / indicated for the UE that the first (or second) power control setting is applied to the PUCCH.
[0463] This setting can also be performed (semi-statically) using higher-layer signaling (RRC / MAC CE), and this indication can also be performed (dynamically) using DCI. This setting can also be, for example, a setting for each CC / cell / BWP / band / PUCCH resource.
[0464] According to the above fifth embodiment, the transmission power of the PUCCH of STxMP can be appropriately controlled.
[0465] <Sixth Embodiment>
[0466] This embodiment relates to PUSCH and PUCCH.
[0467] The PUSCH of this embodiment may also be, for example, a PUSCH of STxMP (based on multiple DCIs).
[0468] The PUCCH of this embodiment may also be, for example, a PUCCH of STxMP (based on multiple DCIs).
[0469] This embodiment is roughly divided into the following options 6-0 to 6-2. The UE / base station may also follow at least one of the following options 6-0 to 6-2.
[0470] 《Option 6-0》
[0471] For the PUSCH / PUCCH of STxMP (based on multiple DCIs), multiple (two) power control settings may not be applied.
[0472] For the PUSCH / PUCCH of STxMP (based on multiple DCIs), the UE may also not apply multiple (two) power control settings.
[0473] In this disclosure, regarding whether to apply multiple (two) power control settings in the PUSCH of STxMP (based on multiple DCIs), it may be determined / set for each CC / cell / BWP / band.
[0474] In this disclosure, regarding whether to apply multiple (two) power control settings in the PUCCH of STxMP (based on multiple DCIs), it may be determined / set for each CC / cell / BWP / band / PUCCH resource.
[0475] 《Option 6-1》
[0476] The first power control setting may also correspond to the first panel.
[0477] The second power control setting may also correspond to the second panel.
[0478] The first panel may also be a panel corresponding to the ID related to the lower (or higher) panel.
[0479] The second panel may also be a panel corresponding to the ID related to the higher (or lower) panel.
[0480] When the first / second panel is used in PUSCH / PUCCH, the UE may also determine to use the first / second power control setting for the PUSCH / PUCCH.
[0481] 《Option 6-2》
[0482] The first power control setting may also correspond to the first CORESET pool index.
[0483] The second power control setting may also correspond to the second CORESET pool index.
[0484] The first CORESET pool index may also be a CORESET pool index with a lower (or higher) value.
[0485] The second CORESET pool index may also be a CORESET pool index with a higher (or lower) value.
[0486] For example, in the case where the first CORESET pool index (for example, the CORESET pool index of the first value (for example, 0)) is associated with the PUSCH / PUCCH, the UE may also determine to use the first power control setting in the PUSCH / PUCCH.
[0487] For example, in the case where the second CORESET pool index (for example, the CORESET pool index of the second value (for example, 1)) is associated with the PUSCH / PUCCH, the UE may also determine to use the second power control setting in the PUSCH / PUCCH.
[0488] According to the above sixth embodiment, the transmission power of the PUSCH / PUCCH of the STxMP can be appropriately controlled.
[0489] <Seventh Embodiment>
[0490] This embodiment relates to SRS.
[0491] The SRS of this embodiment may also be, for example, the SRS in the PUSCH repetition of multiple TRPs based on a single DCI.
[0492] The SRS of this embodiment may also be, for example, the SRS in the PUSCH of the STxMP based on single / multiple DCIs.
[0493] This embodiment is roughly divided into the following options 7-0 to 7-4. The UE / base station may also follow at least one of the following options 7-0 to 7-4.
[0494] <Option 7-0>
[0495] For SRS, multiple (two) power control settings may not be applied.
[0496] For SRS, the UE may not apply multiple (two) power control settings.
[0497] In the present disclosure, regarding whether to apply multiple (two) power control settings in SRS, it can also be determined / set for each CC / cell / BWP / band region / SRS resource / SRS resource set.
[0498] In the present disclosure, for SRS for a specific usage, multiple (two) power control settings may not be applied. The specific usage may be, for example, at least one of CB, NCB, beam management, and antenna switching.
[0499] "Option 7-1"
[0500] Different SRS resource sets may also correspond to different TRPs / panels.
[0501] At this time, the first power control setting may also correspond to the first (for CB / NCB) SRS resource set.
[0502] In addition, the second power control setting may also correspond to the second (for CB / NCB) SRS resource set.
[0503] The first (for CB / NCB) SRS resource set may also be the SRS resource set corresponding to a lower (or higher) SRS resource ID.
[0504] The second (for CB / NCB) SRS resource set may also be the SRS resource set corresponding to a higher (or lower) SRS resource ID.
[0505] "Option 7-2"
[0506] Different SRS resources within an SRS resource set may also correspond to different TRPs / panels.
[0507] At this time, the first power control setting may also correspond to the first SRS resource (group) within a certain SRS resource set.
[0508] In addition, the second power control setting may also correspond to the second SRS resource (group) within a certain SRS resource set.
[0509] The group of the first (for CB / NCB) SRS resources may also include the first K (for CB / NCB) SRS resources within a certain SRS resource set. The group of the first (for CB / NCB) SRS resources may also include the lower (or higher) K first (for CB / NCB) SRS resources.
[0510] The group of the second (for CB / NCB) SRS resources may also mean the SRS resources other than the first K (for CB / NCB) SRS resources within that certain SRS resource set.
[0511] The K can be either predefined in the specification or set / indicated to the UE from the network. For example, the K can also be determined based on the rank indication of multiple (two) panels.
[0512] Option 7-3
[0513] The first power control setting can also correspond to the first panel.
[0514] The second power control setting can also correspond to the second panel.
[0515] The first panel can also be the panel corresponding to the ID related to the lower (or higher) panel.
[0516] The second panel can also be the panel corresponding to the ID related to the higher (or lower) panel.
[0517] When using the first / second panel in the SRS, the UE can also determine to use the first / second power control setting for the SRS.
[0518] Option 7-4
[0519] The first power control setting can also correspond to the first CORESET pool index.
[0520] The second power control setting can also correspond to the second CORESET pool index.
[0521] The first CORESET pool index can also be the CORESET pool index with a lower (or higher) value.
[0522] The second CORESET pool index can also be the CORESET pool index with a higher (or lower) value.
[0523] For example, when the first CORESET pool index (e.g., the CORESET pool index of the first value (e.g., 0)) is associated with the SRS, the UE can also determine to use the first power control setting in the SRS.
[0524] For example, when the second CORESET pool index (e.g., the CORESET pool index of the second value (e.g., 1)) is associated with the SRS, the UE can also determine to use the second power control setting in the SRS.
[0525] In addition, Option 7-4 can also be applied only to the case of using multiple DCIs.
[0526] According to the above seventh embodiment, the transmission power of the SRS can be appropriately controlled.
[0527] <Supplement>
[0528] [Notification of Information to UE]
[0529] Notification of any information from the network (Network (NW)) (e.g., base station (Base Station (BS))) to the UE (in other words, reception of any information from the BS by the UE) in the above-described embodiments may also be performed using physical layer signaling (e.g., DCI), higher layer signaling (e.g., RRC signaling, MAC CE), specific signals / channels (e.g., PDCCH, PDSCH, reference signals), or a combination thereof.
[0530] In the case where the above notification is performed via MAC CE, the MAC CE may also be identified by including a new logical channel ID (Logical Channel ID (LCID)) not defined in the existing standards in the MAC subheader.
[0531] In the case where the above notification is performed via DCI, the above notification may also be performed via a specific field of the DCI, a radio network temporary identifier (Radio Network Temporary Identifier (RNTI)) used in the scrambling of the cyclic redundancy check (Cyclic Redundancy Check (CRC)) bits assigned to the DCI, the format of the DCI, etc.
[0532] Furthermore, notification of any information to the UE in the above-described embodiments may also be performed periodically, semi-persistently, or aperiodically.
[0533] [Notification of Information from UE]
[0534] Notification of any information from the UE (to the NW) (in other words, transmission / reporting of any information from the UE to the BS) in the above-described embodiments may also be performed using physical layer signaling (e.g., UCI), higher layer signaling (e.g., RRC signaling, MACCE), specific signals / channels (e.g., PUCCH, PUSCH, PRACH, reference signals), or a combination thereof.
[0535] In the case where the above notification is performed via MAC CE, the MAC CE may also be identified by including a new LCID not defined in the existing standards in the MAC subheader.
[0536] In the case where the above notification is performed via UCI, the above notification may also be sent using PUCCH or PUSCH.
[0537] In addition, the notification of any information from the UE in the above-described embodiments may also be performed periodically, semi-persistently, or aperiodically.
[0538] [Regarding the application of each embodiment]
[0539] At least one of the above-described embodiments may also be applied when specific conditions are met. The specific conditions may be specified in a standard or may be notified to the UE / BS using higher-layer signaling / physical-layer signaling.
[0540] At least one of the above-described embodiments may also be applied only to a UE that has reported a specific UE capability or supports the specific UE capability.
[0541] The specific UE capability may also represent at least one of the following:
[0542] ・ Support for specific processing / operations / control / information for at least one of the above-described embodiments (e.g., setting of two default power control parameters in a unified TCI state),
[0543] ・ Support for notifying the switching of a single TRP / multi-TRP / STxMP via DCI,
[0544] ・ The number of supported panels.
[0545] In addition, the specific UE capability may be a capability that is applied across all frequencies (commonly regardless of frequency), a capability for each frequency (e.g., one or a combination of a cell, a band, a band combination, a BWP, a component carrier, etc.), a capability for each frequency range (e.g., Frequency Range 1 (FR1), FR2, FR3, FR4, FR5, FR2-1, FR2-2), a capability for each subcarrier spacing (SubCarrier Spacing (SCS)), a capability for each feature set (Feature Set (FS)) or a feature set per component carrier (FeatureSet Per Component-carrier (FSPC)).
[0546] In addition, the specific UE capability may be a capability that is applied across all duplex modes (commonly regardless of the duplex mode) or a capability for each duplex mode (e.g., Time Division Duplex (TDD), Frequency Division Duplex (FDD)).
[0547] In addition, at least one of the above-described embodiments can also be applied when the UE is set / activated / triggers specific information associated with the above-described embodiments (or operates the above-described embodiments) through higher layer signaling / physical layer signaling. For example, the specific information can also be information indicating the activation of setting two default power control parameters in the unified TCI state, any RRC parameters for a specific version (e.g., Rel. 18 / 19), etc.
[0548] The UE can also apply operations of Rel. 15 / 16 / 17, for example, when it does not support at least one of the above specific UE capabilities or the above specific information is not set.
[0549] (Appendix A)
[0550] Regarding an embodiment of the present disclosure, the following inventions are noted.
[0551] [Appendix A-1]
[0552] A terminal, comprising:
[0553] a receiving unit that receives first information and second information for transmission power control of a plurality of physical uplink shared channels (PUSCH) using a plurality of transmission and reception points (TRP); and
[0554] a control unit that, when a unified transmission configuration indication (TCI) state is not indicated, controls the transmission power of the PUSCH corresponding to a first TRP among the plurality of TRP based on the first information, and controls the transmission power of the PUSCH corresponding to a second TRP among the plurality of TRP based on the second information.
[0555] [Appendix A-2]
[0556] The terminal according to Appendix A-1, wherein
[0557] the PUSCH using the plurality of TRP is at least one of the PUSCH that repeats the PUSCH using the unified TCI state and the PUSCH transmitted in the same time domain using a plurality of panels.
[0558] [Appendix A-3]
[0559] The terminal according to Appendix A-1 or Appendix A-2, wherein
[0560] the first information and the second information are included in the setting of a terminal-specific uplink bandwidth part.
[0561] The first information and the second information are represented by a list of specific information.
[0562] [Appendix A-4]
[0563] A terminal according to any one of Appendix A-1 to Appendix A-3, wherein
[0564] The control unit determines the correspondence between the first information and the second information and the first TRP and the second TRP based on specific conditions.
[0565] [Appendix B]
[0566] Regarding an embodiment of the present disclosure, the following inventions are appended.
[0567] [Appendix B-1]
[0568] A terminal having:
[0569] A receiving unit that receives first information and second information for transmission power control of a plurality of physical uplink control channels (PUCCHs) using a plurality of transmit-receive points (TRPs); and
[0570] A control unit that, in a case where a unified transmission configuration indication (TCI) state is not indicated, controls the transmission power of the PUCCH corresponding to the first TRP among the plurality of TRPs based on the first information, and controls the transmission power of the PUCCH corresponding to the second TRP among the plurality of TRPs based on the second information.
[0571] [Appendix B-2]
[0572] A terminal according to Appendix B-1, wherein
[0573] The PUCCH using the plurality of TRPs is at least one of a PUCCH that is a repetition of a PUCCH using the unified TCI state and a PUCCH that is transmitted in the same time domain using a plurality of panels.
[0574] [Appendix B-3]
[0575] A terminal according to Appendix B-1 or Appendix B-2, wherein
[0576] The first information and the second information are included in a setting of a terminal-specific uplink bandwidth part,
[0577] The first information and the second information are represented by a list of specific information.
[0578] [Appendix B-4]
[0579] A terminal according to any one of Appendices B-1 to B-3, wherein,
[0580] The control unit determines the correspondence between the first information and the second information and between the first TRP and the second TRP based on specific conditions.
[0581] (Appendix C)
[0582] Regarding an embodiment of the present disclosure, the following inventions are appended.
[0583] [Appendix C-1]
[0584] A terminal having:
[0585] A receiving unit that receives first information and second information for transmission power control of a plurality of sounding reference signals (SRS) using a plurality of transmit-receive points (TRP); and
[0586] A control unit that, in a case where a unified transmission configuration indication (TCI) state is not indicated, controls the transmission power of the SRS corresponding to the first TRP among the plurality of TRP based on the first information, and controls the transmission power of the SRS corresponding to the second TRP among the plurality of TRP based on the second information.
[0587] [Appendix C-2]
[0588] The terminal according to Appendix C-1, wherein,
[0589] The SRS using the plurality of TRP is at least one of the SRS in the repetition of the physical uplink shared channel (PUSCH) using the unified TCI state and the SRS in the PUSCH transmitted using a plurality of panels in the same time domain.
[0590] [Appendix C-3]
[0591] The terminal according to Appendix C-1 or Appendix C-2, wherein it represents at least one of the following:
[0592] The first information and the second information are included in the setting of the terminal-specific uplink bandwidth part; and
[0593] The first information and the second information are represented by a list of specific information.
[0594] [Appendix C-4]
[0595] The terminal according to any one of Appendices C-1 to C-3, wherein,
[0596] The control unit determines the correspondence between the first information and the second information and between the first TRP and the second TRP based on specific conditions.
[0597] (Wireless communication system)
[0598] Hereinafter, the structure of a wireless communication system according to an embodiment of the present disclosure will be described. In this wireless communication system, any one or a combination of the above-described wireless communication methods according to the various embodiments of the present disclosure is used for communication.
[0599] Figure 8 FIG. is an example showing a schematic structure of a wireless communication system according to an embodiment. The wireless communication system 1 (which may also be simply referred to as the system 1) may also be a system that realizes communication by using Long Term Evolution (LTE), 5th generation mobile communication system New Radio (5GNR), etc., which are standardized by the Third Generation Partnership Project (3GPP).
[0600] In addition, the wireless communication system 1 may also support dual connectivity (Multi-RAT Dual Connectivity (MR-DC)) between multiple Radio Access Technologies (RATs). MR-DC may also include dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), dual connectivity between NR and LTE (NR-E-UTRA Dual Connectivity (NE-DC)), and the like.
[0601] In EN-DC, the base station (eNB) of LTE (E-UTRA) is the Master Node (MN), and the base station (gNB) of NR is the Secondary Node (SN). In NE-DC, the base station (gNB) of NR is the MN, and the base station (eNB) of LTE (E-UTRA) is the SN.
[0602] The wireless communication system 1 may also support dual connectivity between multiple base stations within the same RAT (e.g., dual connectivity (NR-NR Dual Connectivity (NN-DC))) where both the MN and the SN are base stations (gNBs) of NR).
[0603] The wireless communication system 1 may also include a base station 11 that forms a macro cell C1 with a relatively wide coverage area, and a base station 12 (12a - 12c) that is configured within the macro cell C1 and forms a small cell C2 that is narrower than the macro cell C1. The user terminal 20 may also be located within at least one cell. The configuration, number, etc. of each cell and the user terminal 20 are not limited to the manner shown in the figure. Hereinafter, without distinguishing between the base stations 11 and 12, they are collectively referred to as the base station 10.
[0604] The user terminal 20 may also be connected to at least one of the multiple base stations 10. The user terminal 20 may also utilize at least one of Carrier Aggregation (CA) and Dual Connectivity (DC) that uses multiple Component Carriers (CCs).
[0605] Each CC may be included in at least one of a first frequency band (Frequency Range 1 (FR1)) and a second frequency band (Frequency Range 2 (FR2)). The macro cell C1 may be included in FR1, and the small cell C2 may be included in FR2. For example, FR1 may be a frequency band of 6 GHz or less (sub-6 GHz), and FR2 may be a frequency band higher than 24 GHz (above-24 GHz). Additionally, the frequency bands, definitions, etc. of FR1 and FR2 are not limited to these. For example, FR1 may correspond to a frequency band higher than FR2.
[0606] Furthermore, in each CC, the user terminal 20 may communicate using at least one of Time Division Duplex (TDD) and Frequency Division Duplex (FDD).
[0607] Multiple base stations 10 can also be connected via wire (e.g., optical fiber based on the Common Public Radio Interface (CPRI), X2 interface, etc.) or wirelessly (e.g., NR communication). For example, when NR communication is used as a backhaul between base stations 11 and 12, the base station 11 equivalent to the upper station can also be called an Integrated Access Backhaul (IAB) donor, and the base station 12 equivalent to the relay station (relay) can also be called an IAB node.
[0608] The base station 10 can also be connected to the core network 30 via other base stations 10 or directly. The core network 30 can also include, for example, at least one of the Evolved Packet Core (EPC), 5G Core Network (5GCN), Next Generation Core (NGC), etc.
[0609] The core network 30 can also include, for example, network functions (NF) such as User Plane Function (UPF), Access and Mobility management Function (AMF), Session Management Function (SMF), Unified Data Management (UDM), Application Function (AF), Data Network (DN), Location Management Function (LMF), and Maintenance Operation Management (Operation, Administration and Maintenance (Management) (OAM)). Additionally, multiple functions can be provided by one network node. Furthermore, communication with an external network (e.g., the Internet) can be performed via the DN.
[0610] The user terminal 20 can also be a terminal that supports at least one of the communication methods such as LTE, LTE-A, 5G, etc.
[0611] In the wireless communication system 1, a wireless access method based on Orthogonal Frequency Division Multiplexing (OFDM) can also be used. For example, in at least one of the Downlink (DL) and the Uplink (UL), Cyclic Prefix OFDM (CP-OFDM), Discrete Fourier Transform Spread OFDM (DFT-s-OFDM), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), etc. can also be used.
[0612] The wireless access method can also be referred to as a waveform. Additionally, in the wireless communication system 1, other wireless access methods (e.g., other single-carrier transmission methods, other multi-carrier transmission methods) can also be used in the wireless access methods of the UL and the DL.
[0613] In the wireless communication system 1, as the downlink channel, a downlink shared channel (Physical Downlink Shared Channel (PDSCH)), a broadcast channel (Physical Broadcast Channel (PBCH)), a downlink control channel (Physical Downlink Control Channel (PDCCH)), etc., which are shared among the user terminals 20, can also be used.
[0614] Furthermore, in the wireless communication system 1, as the uplink channel, an uplink shared channel (Physical Uplink Shared Channel (PUSCH)), an uplink control channel (Physical Uplink Control Channel (PUCCH)), a random access channel (Physical Random Access Channel (PRACH)), etc., which are shared among the user terminals 20, can also be used.
[0615] User data, high-layer control information, System Information Block (SIB), etc. are transmitted through PDSCH. User data, high-layer control information, etc. can also be transmitted through PUSCH. In addition, the Master Information Block (MIB) can also be transmitted through PBCH.
[0616] Low-layer control information can also be transmitted through PDCCH. The low-layer control information can also include, for example, downlink control information (Downlink Control Information (DCI)), and the downlink control information includes scheduling information for at least one of PDSCH and PUSCH.
[0617] In addition, the DCI for scheduling PDSCH can also be referred to as DL allocation, DL DCI, etc., and the DCI for scheduling PUSCH can also be referred to as UL grant, UL DCI, etc. In addition, PDSCH can also be rewritten as DL data, and PUSCH can also be rewritten as UL data.
[0618] In the detection of PDCCH, the Control Resource Set (CORESET) and the search space can also be used. CORESET corresponds to the resource for searching DCI. The search space corresponds to the search area and search method for PDCCH candidates. One CORESET can also be associated with one or more search spaces. The UE can also monitor the CORESET associated with a certain search space based on the search space setting.
[0619] One search space can also correspond to PDCCH candidates equivalent to one or more aggregation levels. One or more search spaces can also be referred to as a search space set. In addition, the "search space", "search space set", "search space setting", "search space set setting", "CORESET", "CORESET setting", etc. in the present disclosure can also be rewritten with each other.
[0620] Through the PUCCH, it is also possible to transmit uplink control information (Uplink Control Information (UCI)) including at least one of channel state information (Channel State Information (CSI)), delivery confirmation information (for example, it can also be referred to as Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK), ACK / NACK, etc.), and scheduling request (Scheduling Request (SR)). Through the PRACH, it is also possible to transmit a random access preamble for establishing a connection with a cell.
[0621] In addition, in the present disclosure, the downlink, uplink, etc. can also be expressed without "link". Furthermore, it can also be expressed without "Physical" at the beginning of various channels.
[0622] In the wireless communication system 1, it is also possible to transmit a synchronization signal (Synchronization Signal (SS)), a downlink reference signal (Downlink Reference Signal (DL-RS)), etc. In the wireless communication system 1, as the DL-RS, it is also possible to transmit a cell-specific reference signal (Cell-specific Reference Signal (CRS)), a channel state information reference signal (Channel State Information Reference Signal (CSI-RS)), a demodulation reference signal (DeModulation Reference Signal (DMRS)), a positioning reference signal (Positioning Reference Signal (PRS)), a phase tracking reference signal (Phase Tracking Reference Signal (PTRS)), etc.
[0623] The synchronization signal can, for example, also be at least one of a primary synchronization signal (Primary Synchronization Signal (PSS)) and a secondary synchronization signal (Secondary Synchronization Signal (SSS)). A signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) can also be referred to as an SS / PBCH block, an SS block (SS Block (SSB)), etc. In addition, SS, SSB, etc. can also be referred to as reference signals.
[0624] In addition, in the wireless communication system 1, as the uplink reference signal (Uplink Reference Signal (UL-RS)), it is also possible to transmit a reference signal for measurement (sounding reference signal (Sounding Reference Signal (SRS))), a demodulation reference signal (DMRS), etc. In addition, DMRS can also be referred to as a user terminal specific reference signal (UE-specific Reference Signal).
[0625] (Base station)
[0626] Figure 9 FIG. is an example showing the structure of a base station according to an embodiment. The base station 10 includes a control unit 110, a transmission / reception unit 120, a transmission / reception antenna 130, and a transmission path interface (transmission line interface) 140. In addition, one or more of the control unit 110, the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission path interface 140 may be provided respectively.
[0627] In addition, in this example, the functional blocks of the characteristic parts in this embodiment are mainly shown, and it can also be assumed that the base station 10 also has other functional blocks required for wireless communication. A part of the processing of each unit described below may also be omitted.
[0628] The control unit 110 implements overall control of the base station 10. The control unit 110 can be composed of a controller, a control circuit, etc. described based on the common knowledge in the technical field related to the present disclosure.
[0629] The control unit 110 may also control signal generation, scheduling (e.g., resource allocation, mapping), etc. The control unit 110 may also control transmission / reception, measurement, etc. using the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission path interface 140. The control unit 110 may also generate data, control information, a sequence, etc. to be transmitted as a signal, and forward them to the transmission / reception unit 120. The control unit 110 may also perform call processing (setting, releasing, etc.) of a communication channel, state management of the base station 10, management of radio resources, etc.
[0630] The transmitting and receiving unit 120 may also include a baseband unit 121, a Radio Frequency (RF) unit 122, and a measurement unit 123. The baseband unit 121 may also include a transmission processing unit 1211 and a reception processing unit 1212. The transmitting and receiving unit 120 may be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter (phase shifter), a measurement circuit, a transmitting and receiving circuit, etc., which are described based on the common knowledge in the technical field related to the present disclosure.
[0631] The transmitting and receiving unit 120 may be configured as an integrated transmitting and receiving unit or may be composed of a transmitting unit and a receiving unit. The transmitting unit may also be composed of a transmission processing unit 1211 and an RF unit 122. The receiving unit may also be composed of a reception processing unit 1212, an RF unit 122, and a measurement unit 123.
[0632] The transmitting and receiving antenna 130 may be composed of an antenna, such as an array antenna, etc., which are described based on the common knowledge in the technical field related to the present disclosure.
[0633] The transmitting and receiving unit 120 may also transmit the above-mentioned downlink channels, synchronization signals, downlink reference signals, etc. The transmitting and receiving unit 120 may also receive the above-mentioned uplink channels, uplink reference signals, etc.
[0634] The transmitting and receiving unit 120 may also use digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), etc., to form at least one of a transmission beam and a reception beam.
[0635] The transmitting and receiving unit 120 (transmission processing unit 1211) may also perform processing at the Packet Data Convergence Protocol (PDCP) layer, Radio Link Control (RLC) layer processing (e.g., RLC retransmission control), Medium Access Control (MAC) layer processing (e.g., HARQ retransmission control), etc., on the data, control information, etc., obtained from the control unit 110, and generate a bit string to be transmitted.
[0636] The transmission / reception unit 120 (transmission processing unit 1211) can also perform transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filter processing (filtering), Discrete Fourier Transform (DFT) processing (if necessary), Inverse Fast Fourier Transform (IFFT) processing, precoding, digital-to-analog conversion, etc. on the bit string to be transmitted, and output a baseband signal.
[0637] The transmission / reception unit 120 (RF unit 122) can also perform modulation to the radio frequency band, filter processing, amplification, etc. on the baseband signal, and transmit the radio frequency band signal via the transmission / reception antenna 130.
[0638] On the other hand, the transmission / reception unit 120 (RF unit 122) can also perform amplification, filter processing, demodulation to the baseband signal, etc. on the radio frequency band signal received through the transmission / reception antenna 130.
[0639] The transmission / reception unit 120 (reception processing unit 1212) can also perform reception processing such as analog-to-digital conversion, Fast Fourier Transform (FFT) processing, Inverse Discrete Fourier Transform (IDFT) processing (if necessary), filter processing, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing, etc. on the obtained baseband signal, and obtain user data, etc.
[0640] The transmission / reception unit 120 (measurement unit 123) may also perform measurements related to the received signal. For example, the measurement unit 123 may also perform Radio Resource Management (RRM) measurements, Channel State Information (CSI) measurements, etc. based on the received signal. The measurement unit 123 may also perform measurements on the received power (e.g., Reference Signal Received Power (RSRP)), received quality (e.g., Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)), signal strength (e.g., Received Signal Strength Indicator (RSSI)), propagation path information (e.g., CSI), etc. The measurement results may also be output to the control unit 110.
[0641] The transmission path interface 140 may also transmit and receive signals (backhaul signaling) between the device included in the core network 30 (e.g., the network node providing the NF), other base stations 10, etc., and may also obtain and transmit user data (user plane data), control plane data, etc. for the user terminal 20.
[0642] In addition, the transmission unit and the reception unit of the base station 10 in the present disclosure may also be constituted by at least one of the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission path interface 140.
[0643] The transmission / reception unit 120 may also transmit the first information and the second information for the transmission power control of the multiple Physical Uplink Shared Channels (PUSCH) using multiple Transmission and Reception Points (TRP). The control unit 110 may also, in the case where the unified transmission configuration indication (Transmission Configuration Indication (TCI)) state is not indicated, use the first information to indicate the transmission power of the PUSCH corresponding to the first TRP among the multiple TRP, and use the second information to indicate the transmission power of the PUSCH corresponding to the second TRP among the multiple TRP.
[0644] The transmitting and receiving unit 120 may also transmit first information and second information for transmission power control of multiple physical uplink control channels (PUCCHs) using multiple transmission and reception points (TRPs). The control unit 110 may also, in the case where a unified transmission configuration indication (TCI) state is not indicated, use the first information to indicate the transmission power of the PUCCH corresponding to the first TRP among the multiple TRPs, and use the second information to indicate the transmission power of the PUCCH corresponding to the second TRP among the multiple TRPs.
[0645] The transmitting and receiving unit 120 may also transmit first information and second information for transmission power control of multiple sounding reference signals (SRSs) using multiple transmission and reception points (TRPs). The control unit 110 may also, in the case where a unified transmission configuration indication (TCI) state is not indicated, use the first information to indicate the transmission power of the SRS corresponding to the first TRP among the multiple TRPs, and use the second information to indicate the transmission power of the SRS corresponding to the second TRP among the multiple TRPs.
[0646] (User Equipment)
[0647] Figure 10 FIG. is an example showing the structure of a user equipment according to an embodiment. The user equipment 20 includes a control unit 210, a transmitting and receiving unit 220, and a transmitting and receiving antenna 230. In addition, one or more of the control unit 210, the transmitting and receiving unit 220, and the transmitting and receiving antenna 230 may be provided respectively.
[0648] In addition, in this example, mainly the functional blocks of the characteristic parts in this embodiment are shown, and it can be assumed that the user equipment 20 also has other functional blocks required for wireless communication. A part of the processing of each unit described below may also be omitted.
[0649] The control unit 210 implements overall control of the user equipment 20. The control unit 210 can be constituted by a controller, a control circuit, etc. described based on the common knowledge in the technical field related to the present disclosure.
[0650] The control unit 210 may also control the generation, mapping, etc. of signals. The control unit 210 may also control transmission and reception, measurement, etc. using the transmitting and receiving unit 220 and the transmitting and receiving antenna 230. The control unit 210 may also generate data, control information, sequences, etc. to be transmitted as signals, and forward them to the transmitting and receiving unit 220.
[0651] The transmission / reception unit 220 may also include a baseband unit 221, an RF unit 222, and a measurement unit 223. The baseband unit 221 may also include a transmission processing unit 2211 and a reception processing unit 2212. The transmission / reception unit 220 can be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmission / reception circuit, etc., which are described based on the common knowledge in the technical field related to the present disclosure.
[0652] The transmission / reception unit 220 may be configured as an integrated transmission / reception unit or may be composed of a transmission unit and a reception unit. The transmission unit may also be composed of a transmission processing unit 2211 and an RF unit 222. The reception unit may also be composed of a reception processing unit 2212, an RF unit 222, and a measurement unit 223.
[0653] The transmission / reception antenna 230 can be composed of an antenna described based on the common knowledge in the technical field related to the present disclosure, such as an array antenna.
[0654] The transmission / reception unit 220 may also receive the above-mentioned downlink channels, synchronization signals, downlink reference signals, etc. The transmission / reception unit 220 may also transmit the above-mentioned uplink channels, uplink reference signals, etc.
[0655] The transmission / reception unit 220 may also use digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), etc. to form at least one of a transmission beam and a reception beam.
[0656] The transmission / reception unit 220 (transmission processing unit 2211) may, for example, also perform PDCP layer processing, RLC layer processing (e.g., RLC retransmission control), MAC layer processing (e.g., HARQ retransmission control), etc. on the data, control information, etc. obtained from the control unit 210, and generate a bit string to be transmitted.
[0657] The transmission / reception unit 220 (transmission processing unit 2211) may also perform transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filter processing, DFT processing (if necessary), IFFT processing, precoding, digital-to-analog conversion, etc. on the bit string to be transmitted, and output a baseband signal.
[0658] In addition, regarding whether to apply DFT processing, it can also be based on the setting of transform precoding. For a certain channel (e.g., PUSCH), when the transform precoding is enabled, the transmission / reception unit 220 (transmission processing unit 2211) can also perform DFT processing as the above-mentioned transmission processing in order to transmit the channel using the DFT-s-OFDM waveform. In cases where this is not so, the transmission / reception unit 220 (transmission processing unit 2211) can also not perform DFT processing as the above-mentioned transmission processing.
[0659] The transmission / reception unit 220 (RF unit 222) can also perform modulation to the radio frequency band, filter processing, amplification, etc. on the baseband signal, and transmit the radio frequency band signal via the transmission / reception antenna 230.
[0660] On the other hand, the transmission / reception unit 220 (RF unit 222) can also perform amplification, filter processing, demodulation to the baseband signal, etc. on the radio frequency band signal received through the transmission / reception antenna 230.
[0661] The transmission / reception unit 220 (reception processing unit 2212) can also apply reception processing such as analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filter processing, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing, etc. to the obtained baseband signal, and obtain user data, etc.
[0662] The transmission / reception unit 220 (measurement unit 223) can also perform measurements related to the received signal. For example, the measurement unit 223 can perform RRM measurements, CSI measurements, etc. based on the received signal. The measurement unit 223 can also measure the received power (e.g., RSRP), reception quality (e.g., RSRQ, SINR, SNR), signal strength (e.g., RSSI), propagation path information (e.g., CSI), etc. The measurement results can also be output to the control unit 210.
[0663] In addition, the transmission unit and reception unit of the user terminal 20 in the present disclosure can also be constituted by at least one of the transmission / reception unit 220 and the transmission / reception antenna 230.
[0664] The transmitting and receiving unit 220 may also receive first information and second information for transmission power control of multiple physical uplink shared channels (PUSCHs) using multiple transmission and reception points (TRPs). The control unit 210 may also, without being instructed of a unified transmission configuration indication (TCI) state, control the transmission power of the PUSCH corresponding to the first TRP among the multiple TRPs based on the first information, and control the transmission power of the PUSCH corresponding to the second TRP among the multiple TRPs based on the second information.
[0665] The PUSCH using the multiple TRPs may also be at least one of a repetition of the PUSCH using the unified TCI state and a PUSCH transmitted using multiple panels in the same time domain.
[0666] The first information and the second information may also be included in the setting of a terminal-specific uplink bandwidth part. The first information and the second information may also be represented by a list of specific information.
[0667] The control unit 210 may also determine the correspondence between the first information and the second information and the first TRP and the second TRP based on specific information.
[0668] The transmitting and receiving unit 220 may also receive first information and second information for transmission power control of multiple physical uplink control channels (PUCCHs) using multiple transmission and reception points (TRPs). The control unit 210 may also, without being instructed of a unified transmission configuration indication (TCI) state, control the transmission power of the PUCCH corresponding to the first TRP among the multiple TRPs based on the first information, and control the transmission power of the PUCCH corresponding to the second TRP among the multiple TRPs based on the second information.
[0669] The PUCCH using the multiple TRPs may also be at least one of a repetition of the PUCCH using the unified TCI state and a PUCCH transmitted using multiple panels in the same time domain.
[0670] The first information and the second information may also be included in the setting of a terminal-specific uplink bandwidth part. The first information and the second information may also be represented by a list of specific information.
[0671] The control unit 210 may also determine the correspondence between the first information and the second information and the first TRP and the second TRP based on specific information.
[0672] The transmission / reception unit 220 may also receive first information and second information for transmission power control of multiple sounding reference signals (SRSs) using multiple transmission / reception points (TRPs). The control unit 210 may also control the transmission power of the SRS corresponding to the first TRP among the multiple TRPs based on the first information and control the transmission power of the SRS corresponding to the second TRP among the multiple TRPs based on the second information without being instructed a unified transmission configuration indication (TCI) state.
[0673] The SRS using the multiple TRPs may also be at least one of the SRS in repetitions of a physical uplink shared channel (PUSCH) using the unified TCI state and the SRS in a PUSCH transmitted using multiple panels in the same time domain.
[0674] The first information and the second information may also be included in the setting of a terminal-specific uplink bandwidth part. The first information and the second information may also be represented by a list of specific information.
[0675] The control unit 210 may also determine the correspondence between the first information and the second information and the first TRP and the second TRP based on specific information.
[0676] (Hardware Structure)
[0677] In addition, the block diagrams used in the description of the above embodiments illustrate blocks of functional units. These functional blocks (structural units) are implemented by any combination of at least one of hardware and software. In addition, there is no particular limitation on the implementation method of each functional block. That is, each functional block may be implemented by a single device physically or logically combined, or may be implemented by two or more physically or logically separated devices directly or indirectly (e.g., by wire, wireless, etc.) connected with these multiple devices. The functional block may also be implemented by combining the above single device or the above multiple devices with software.
[0678] Here, in terms of functions, there are judgment, decision-making, determination, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, solution, selection, selection, establishment, comparison, assumption, expectation, regarded as, broadcasting, notifying, communicating, forwarding, configuration (configuring), reconfiguration (reconfiguring), allocation (allocating, mapping), assignment (assigning), etc., but not limited to these. For example, a functional block (structural unit) that implements the transmission function may also be referred to as a transmitting unit, a transmitter, etc. Any one of them is as described above, and the implementation method is not particularly limited.
[0679] For example, a base station, a user terminal, etc. in an embodiment of the present disclosure may also function as a computer that processes the wireless communication method of the present disclosure. Figure 11 FIG. is an example showing the hardware structure of a base station and a user terminal according to an embodiment. The above-mentioned base station 10 and user terminal 20 may also 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.
[0680] In addition, in the present disclosure, terms such as device, circuit, equipment, section, unit, etc. can be rewritten with each other. The hardware structure 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 devices.
[0681] For example, only one processor 1001 is shown, but there may be multiple processors. In addition, the processing may be executed by one processor, or may be executed by two or more processors simultaneously, sequentially, or by other means. In addition, the processor 1001 may also be implemented by one or more chips.
[0682] Regarding each function in the base station 10 and the user terminal 20, for example, by reading a specific software (program) into hardware such as the processor 1001 and the memory 1002, the processor 1001 performs operations and controls communication via the communication device 1004, or controls at least one of reading and writing data in the memory 1002 and the storage 1003, thereby realizing it.
[0683] The processor 1001, for example, operates the operating system to control the entire computer. The processor 1001 may also be constituted by a central processing unit (Central Processing Unit (CPU)) including an interface with peripheral devices, a control device, an arithmetic device, registers, and the like. For example, at least a part of the above-described control unit 110 (210), transmission / reception unit 120 (220), etc. may also be implemented by the processor 1001.
[0684] In addition, the processor 1001 reads a program (program code), software module, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and performs various processes based on them. As the program, a program that causes a computer to execute at least a part of the operations described in the above-described embodiments may be used. For example, the control unit 110 (210) may also be implemented by a control program stored in the memory 1002 and operating in the processor 1001, and the same applies to other functional blocks.
[0685] The memory 1002 may also be a computer-readable recording medium, and is constituted by, for example, at least one of a read-only memory (Read Only Memory (ROM)), an erasable programmable read-only memory (Erasable Programmable ROM (EPROM)), an electrically erasable programmable read-only memory (Electrically EPROM (EEPROM)), a random access memory (Random Access Memory (RAM)), and other appropriate storage media. The memory 1002 may also be referred to as a register, a cache, a main memory (main storage device), etc. The memory 1002 can store a program (program code), software module, etc. executable for implementing the wireless communication method according to an embodiment of the present disclosure.
[0686] The storage 1003 may also be a computer-readable recording medium, and is constituted by, for example, at least one of a flexible disc, a floppy (registered trademark) disc, an optical disc (e.g., a compact disc (Compact Disc ROM (CD-ROM))), a digital versatile disc, a Blu-ray (registered trademark) disc), a removable disc, a hard disk drive, a smart card, a flash device (e.g., a card, a stick, a key drive), a magnetic stripe, a database, a server, and other appropriate storage media. The storage 1003 may also be referred to as an auxiliary storage device.
[0687] The communication device 1004 is hardware (a transmitting and receiving device) for performing communication between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, etc. In order to implement at least one of, for example, Frequency Division Duplex (FDD) and Time Division Duplex (TDD), the communication device 1004 may also be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. For example, the above-described transmitting and receiving unit 120 (220), transmitting and receiving antenna 130 (230), etc. may also be implemented by the communication device 1004. The transmitting and receiving unit 120 (220) may also be physically or logically separated and implemented by a transmitting unit 120a (220a) and a receiving unit 120b (220b).
[0688] The input device 1005 is an input device (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that accepts an input from the outside. The output device 1006 is an output device (e.g., a display, a speaker, a Light Emitting Diode (LED) lamp, etc.) that performs an output to the outside. In addition, the input device 1005 and the output device 1006 may also have an integrated structure (e.g., a touch panel).
[0689] In addition, 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 constituted by a single bus or may be constituted by different buses between the respective devices.
[0690] In addition, the base station 10 and the user terminal 20 may also be configured to include hardware such as a microprocessor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), etc., and a part or all of each functional block may also be implemented by this hardware. For example, the processor 1001 may also be implemented using at least one of these hardwares.
[0691] (Modification example)
[0692] In addition, terms described in the present disclosure and terms necessary for understanding the present disclosure may also be replaced with terms having the same or similar meanings. For example, a channel, a symbol, and a signal (signal or signaling) may also be rewritten with each other. In addition, a signal may also be a message. A reference signal may also be abbreviated as RS and may also be referred to as a pilot, a pilot signal, etc. according to the applied standard. In addition, a component carrier (Component Carrier (CC)) may also be referred to as a cell, a frequency carrier, a carrier frequency, etc.
[0693] A radio frame may also be composed of one or more periods (frames) in the time domain. Each of the one or more periods (frames) constituting the radio frame may also be referred to as a subframe. Further, a subframe may also be composed of one or more time slots in the time domain. A subframe may also be a fixed time length (e.g., 1 ms) independent of the numerology.
[0694] Here, the numerology may also be a communication parameter applied in at least one of transmission and reception of a certain signal or channel. For example, the numerology may also represent at least one of a subcarrier spacing (SubCarrier Spacing (SCS)), a bandwidth, a symbol length, a cyclic prefix length, a transmission time interval (Transmission Time Interval (TTI)), the number of symbols per TTI, a radio frame structure, a specific filtering process performed by a transmitter-receiver in the frequency domain, a specific windowing process performed by a transmitter-receiver in the time domain, etc.
[0695] A time slot may also be composed of one or more symbols (orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing (OFDM)) symbols, single carrier frequency division multiple access (Single Carrier Frequency Division Multiple Access (SC-FDMA)) symbols, etc.) in the time domain. In addition, a time slot may also be a time unit based on the numerology.
[0696] A time slot may also include a plurality of mini-slots. Each mini-slot may also be composed of one or more symbols in the time domain. In addition, a mini-slot may also be referred to as a sub-slot. A mini-slot may also be composed of a smaller number of symbols than a time slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a mini-slot may also be referred to as a PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot may also be referred to as a PDSCH (PUSCH) mapping type B.
[0697] A radio frame, a subframe, a time slot, a mini time slot, and a symbol all represent time units for transmitting signals. A radio frame, a subframe, a time slot, a mini time slot, and a symbol may also use their respective other names. In addition, time units such as frames, subframes, time slots, mini time slots, and symbols in the present disclosure can also be rewritten with each other.
[0698] For example, a subframe may also be referred to as a TTI, multiple consecutive subframes may also be referred to as a TTI, a time slot or a mini time slot may also be referred to as a TTI. That is, at least one of a subframe and a TTI may be a subframe (1 ms) in existing LTE, may be a period shorter than 1 ms (for example, 1 - 13 symbols), or may be a period longer than 1 ms. In addition, the unit representing a TTI may not be referred to as a subframe, but may be referred to as a time slot, a mini time slot, etc.
[0699] Here, a TTI refers to, for example, the minimum time unit for scheduling in wireless communication. For example, in an LTE system, a base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used in each user terminal) to each user terminal in units of TTI. In addition, the definition of a TTI is not limited to this.
[0700] A TTI may also be a transmission time unit for data packets (transport blocks), code blocks, codewords, etc. that have undergone channel coding, and may also become a processing unit for scheduling, link adaptation, etc. In addition, when a TTI is given, the time interval (for example, the number of symbols) in which a transport block, a code block, a codeword, etc. are actually mapped may also be shorter than the TTI.
[0701] In addition, when a time slot or a mini time slot is referred to as a TTI, one or more TTIs (that is, one or more time slots or one or more mini time slots) may also become the minimum time unit for scheduling. In addition, the number of time slots (number of mini time slots) constituting the minimum time unit of this scheduling can also be controlled.
[0702] A TTI having a time length of 1 ms may also be referred to as a normal TTI (TTI in 3GPP Rel.8 - 12), a standard TTI, a long TTI, a normal subframe, a standard subframe, a long subframe, a time slot, etc. A TTI shorter than a normal TTI may also be referred to as a shortened TTI, a short TTI, a partial TTI, a shortened subframe, a short subframe, a mini time slot, a sub - time slot, a time slot, etc.
[0703] In addition, a long TTI (for example, a normal TTI, a subframe, etc.) may be rewritten as a TTI having a time length exceeding 1 ms, and a short TTI (for example, a shortened TTI, etc.) may be rewritten as a TTI having a TTI length less than that of the long TTI and 1 ms or more.
[0704] A resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may also include one or more consecutive subcarriers (subcarriers) in the frequency domain. The number of subcarriers included in an RB may also be the same regardless of the parameter set, for example, it may also be 12. The number of subcarriers included in an RB may also be determined based on the parameter set.
[0705] In addition, an RB may also include one or more symbols in the time domain, and may also be the length of a time slot, a mini-slot, a subframe, or a TTI. A TTI, a subframe, etc. may also be composed of one or more resource blocks respectively.
[0706] In addition, one or more RBs may also be referred to as a physical resource block (PRB), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, etc.
[0707] In addition, a resource block may also be composed of one or more resource elements (REs). For example, one RE may also be a radio resource region of a subcarrier and a symbol.
[0708] A bandwidth part (BWP) (which may also be referred to as a partial bandwidth, etc.) may also represent a subset of consecutive common RBs (common resource blocks) used for a certain parameter set in a certain carrier. Here, the common RBs may also be determined by the index of the RBs based on the common reference point of the carrier. A PRB may also be defined in a certain BWP and be additionally numbered within that BWP.
[0709] An UL BWP (BWP for UL) and a DL BWP (BWP for DL) may also be included in a BWP. For a UE, one or more BWPs may also be set within one carrier.
[0710] At least one of the set BWPs may also be active, and the UE may not assume to transmit and receive specific signals / channels outside the active BWP. In addition, "cell", "carrier", etc. in the present disclosure may also be rewritten as "BWP".
[0711] In addition, structures such as the above-mentioned radio frames, subframes, time slots, mini time slots, and symbols are merely illustrative. For example, the number of subframes included in a radio frame, the number of time slots in each subframe or radio frame, the number of mini time slots included in a time slot, the symbols included in a time slot or mini time slot, the number of RBs, the number of subcarriers included in an RB, and the number of symbols, symbol length, cyclic prefix (CP) length, etc. within a TTI can be changed in various ways.
[0712] In addition, the information, parameters, etc. described in this disclosure can be represented by absolute values, relative values with respect to a specific value, or can also be represented by corresponding other information. For example, radio resources can also be indicated by a specific index.
[0713] In this disclosure, the names used for parameters, etc. are not restrictive names in all aspects. Furthermore, mathematical expressions, etc. using these parameters can also be different from those explicitly disclosed in this disclosure. Various channels (PUCCH, PDCCH, etc.) and information elements can be identified by any suitable name. Therefore, the various names assigned to these various channels and information elements are not restrictive names in all aspects.
[0714] The information, signals, etc. described in this disclosure can also be represented using any one of various different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be mentioned throughout the above description can also be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.
[0715] In addition, information, signals, etc. can be output in at least one of the following directions: from a higher layer (upper layer) to a lower layer (lower layer), and from a lower layer to a higher layer. Information, signals, etc. can also be input and output via multiple network nodes.
[0716] The input and output information, signals, etc. can be stored in a specific location (e.g., a memory), or can be managed using a management table. The input and output information, signals, etc. can be overwritten, updated, or appended. The output information, signals, etc. can also be deleted. The input information, signals, etc. can also be sent to other devices.
[0717] Notification of information is not limited to the manners / embodiments described in this disclosure, and other methods may also be used. For example, the notification of information in this disclosure may also be implemented through physical layer signaling (e.g., downlink control information (Downlink Control Information (DCI))), uplink control information (Uplink Control Information (UCI))), higher 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.
[0718] In addition, physical layer signaling may also be referred to as Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signal), L1 control information (L1 control signal), etc. In addition, RRC signaling may also be referred to as an RRC message, and may also be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, etc. In addition, MAC signaling may also be notified, for example, using a MAC Control Element (MAC CE).
[0719] In addition, the notification of specific information (e.g., the notification of "is X") is not limited to explicit notification, and may also be performed implicitly (e.g., by not performing the notification of the specific information, or by the notification of other information).
[0720] The determination may be made by a value represented by one bit (0 or 1), may also be made by a true / false value (boolean value) represented by true or false, and may also be made by a numerical comparison (e.g., comparison with a specific value).
[0721] Software, whether referred to as software, firmware, middleware, micro-code, hardware description language, or by any other name, shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, sub-programs, software modules, applications, software applications, software packages, routines, sub-routines, objects, executable files, execution threads, procedures, functions, etc.
[0722] In addition, software, instructions, information, etc. can also be sent and received via a transmission medium. For example, in the case of sending software from a website, server, or other remote source using at least one of wired technologies (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and wireless technologies (infrared, microwave, etc.), at least one of these wired and wireless technologies is included in the definition of the transmission medium.
[0723] Terms such as "system" and "network" used in this disclosure can be used interchangeably. "Network" can also mean a device (e.g., a base station) included in the network.
[0724] In this disclosure, terms such as "precoding", "precoder", "weights (precoding weights)", "Quasi-Co-Location (QCL)", "Transmission Configuration Indication state (TCI state)", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angle", "antenna", "antenna element", "panel", etc. can be used interchangeably.
[0725] In the present disclosure, terms such as "Base Station (BS)", "radio base station", "fixed station", "NodeB", "eNB (eNodeB)", "gNB (gNodeB)", "access point", "Transmission Point (TP)", "Reception Point (RP)", "Transmission / Reception Point (TRP)", "panel", "cell", "sector", "cell group", "carrier", "component carrier" can be used interchangeably. There are also cases where base stations are referred to by terms such as macro cell, small cell, femto cell, pico cell, etc.
[0726] A base station can accommodate one or more (e.g., three) cells. In the case where a base station accommodates multiple cells, the entire coverage area of the base station can be divided into multiple smaller areas, and each smaller area can also provide communication services through a base station subsystem (e.g., a small indoor base station (Remote Radio Head (RRH))). Terms such as "cell" or "sector" refer to a part or the whole of the coverage area of at least one of the base station and the base station subsystem that provides communication services within that coverage range.
[0727] In the present disclosure, the base station sending information to the terminal can also be rewritten as the base station instructing the terminal to perform control / actions based on that information.
[0728] In the present disclosure, terms such as "Mobile Station (MS)", "user terminal", "user device (User Equipment (UE))", "terminal" can be used interchangeably.
[0729] There are also cases where mobile stations are referred to by terms such as subscriber station, mobile unit, subscriber unit, radio unit, remote unit, mobile device, radio device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, hand set, user agent, mobile client, client, or several other appropriate terms.
[0730] At least one of the base station and the mobile station can also be referred to as a transmitting device, a receiving device, a wireless communication device, etc. In addition, at least one of the base station and the mobile station can also be a device mounted on a moving object, the moving object itself, etc.
[0731] The moving body refers to an object that can move, with an arbitrary moving speed, and of course includes the case where the moving body stops. The moving body includes, for example, vehicles, transport vehicles, automobiles, two-wheeled motor vehicles (motorcycles), bicycles, connected vehicles, loading shovels, bulldozers, wheel loaders, dump trucks, fork lifts, trains, buses, trolleys, rickshaws, ships (boats and other watercraft), airplanes, rockets, artificial satellites, drones, multi-rotor aircraft, quad-rotor aircraft, balloons, and objects mounted on them. In addition, it is not limited to these. Further, the moving body may also be a moving body that autonomously travels based on an operation instruction.
[0732] The moving body may be a means of transportation (e.g., a vehicle, an airplane, etc.), or a moving body that moves in an unmanned manner (e.g., a drone, an autonomous vehicle, etc.), or may also be a robot (humanoid or non-humanoid). In addition, at least one of the base station and the mobile station also includes a device that does not necessarily move during a communication operation. For example, at least one of the base station and the mobile station may also be an Internet of Things (IoT) device such as a sensor.
[0733] Figure 12 FIG. is an example diagram showing 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 (including a current sensor 50, a rotational 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 unit 59, and a communication module 60.
[0734] The drive unit 41 is constituted by, for example, at least one of an engine, a motor, and a hybrid of an engine and a motor. The steering unit 42 is configured to include at least a steering wheel (also referred to as a handlebar), and based on the operation of the steering wheel operated by the user, steer at least one of the front wheels 46 and the rear wheels 47.
[0735] The electronic control unit 49 is composed of a microprocessor 61, a memory (ROM, RAM) 62, and a communication port (for example, an input / output (I / O) port) 63. Signals from various sensors 50-58 provided in the vehicle are input into the electronic control unit 49. The electronic control unit 49 may also be referred to as an ECU (Electronic Control Unit).
[0736] As signals from various sensors 50-58, there are current signals from a current sensor 50 that senses the current of the motor, rotational speed signals of the front wheels 46 / rear wheels 47 obtained by a rotational speed sensor 51, air pressure signals of the front wheels 46 / rear wheels 47 obtained by an air pressure sensor 52, vehicle speed signals obtained by a vehicle speed sensor 53, acceleration signals obtained by an acceleration sensor 54, depression amount signals of an acceleration pedal 43 obtained by an acceleration pedal sensor 55, depression amount signals of a brake pedal 44 obtained by a brake pedal sensor 56, operation signals of a shift lever 45 obtained by a shift lever sensor 57, detection signals for detecting obstacles, vehicles, pedestrians, etc. obtained by an object detection sensor 58, and so on.
[0737] The information service unit 59 is composed of various devices such as a vehicle navigation system, an audio system, a speaker, a display, a television, and a radio, which are used to provide (output) various information such as driving information, traffic information, and entertainment information, and one or more ECUs that control these devices. The information service unit 59 uses the information obtained from an external device via a communication module 60, etc., to provide various information / services (for example, multimedia information / multimedia services) to the occupants of the vehicle 40.
[0738] 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, or may include an output device (for example, a display, a speaker, an LED lamp, a touch panel, etc.) that performs output to the outside.
[0739] The driving assistance system unit 64 is composed of a millimeter-wave radar, a Light Detection and Ranging (LiDAR), a camera, a positioning device (such as a Global Navigation Satellite System (GNSS), etc.), map information (such as a high-precision (High Definition (HD)) map, an Autonomous Vehicle (AV) map, etc.), a gyroscope system (such as an inertial measurement device (Inertial Measurement Unit (IMU)), an inertial navigation device (Inertial Navigation System (INS)), etc.), an Artificial Intelligence (AI) chip, an AI processor, and various devices for providing functions to prevent accidents or reduce the driver's driving load, and one or more ECUs for controlling these devices. In addition, the driving assistance system unit 64 transmits and receives various information via the communication module 60 and implements a driving assistance function or an autonomous driving function.
[0740] The communication module 60 can communicate with the microprocessor 61 and the components of the vehicle 40 via the communication port 63. For example, the communication module 60 transmits and receives data (information) via the communication port 63 among the drive unit 41, the steering unit 42, the accelerator pedal 43, the brake pedal 44, the shift lever 45, the left and right front wheels 46, the left and right rear wheels 47, the axle 48, the microprocessor 61 and the memory (ROM, RAM) 62 in the electronic control unit 49, and various sensors 50 - 58 provided in the vehicle 40.
[0741] The communication module 60 can be controlled by the microprocessor 61 of the electronic control unit 49 and is a communication device capable of communicating with an external device. For example, various information is transmitted and received via wireless communication between external devices. The communication module 60 can be located either inside or outside the electronic control unit 49. The external device can also be, for example, the above-mentioned base station 10, user terminal 20, etc. In addition, the communication module 60 can also be, for example, at least one of the above-mentioned base station 10 and user terminal 20 (and can also function as at least one of the base station 10 and user terminal 20).
[0742] The communication module 60 can also transmit, via wireless communication, at least one of the signals from the various sensors 50-58 input to the electronic control unit 49, the information obtained based on the signals, and the information based on the input from the outside (user) obtained via the information service unit 59. The electronic control unit 49, the various sensors 50-58, the information service unit 59, etc. can also be referred to as input units that accept input. For example, the PUSCH transmitted through the communication module 60 may also include the information based on the above input.
[0743] The communication module 60 receives various information (traffic information, signal information, vehicle-to-vehicle information, etc.) transmitted from an external device and displays it to the information service unit 59 provided in the vehicle. The information service unit 59 can also be referred to as an output unit that outputs information (for example, based on the PDSCH received through the communication module 60 (or the data / information decoded from the PDSCH), outputs information to devices such as a display and a speaker).
[0744] In addition, the communication module 60 stores the various information received from the external device in the memory 62 that can be utilized by the microprocessor 61. The microprocessor 61 can also control the drive unit 41, the direction control unit 42, the accelerator pedal 43, the brake pedal 44, the shift lever 45, the left and right front wheels 46, the left and right rear wheels 47, the axle 48, the various sensors 50-58, etc. provided in the vehicle 40 based on the information stored in the memory 62.
[0745] In addition, the base station in the present disclosure can also be rewritten as a user terminal. For example, for a structure in which the communication between the base station and the user terminal is replaced by the communication between multiple user terminals (for example, it can also be referred to as Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.), the various aspects / embodiments of the present disclosure can also be applied. In this case, it can also be a structure in which the user terminal 20 has the functions of the above base station 10. In addition, terms such as "uplink" and "downlink" can also be rewritten as terms corresponding to the communication between terminals (for example, "sidelink"). For example, the uplink channel, the downlink channel, etc. can also be rewritten as the sidelink channel.
[0746] Similarly, the user terminal in the present disclosure can also be rewritten as a base station. In this case, it can also be a structure in which the base station 10 has the functions of the above user terminal 20.
[0747] In the present disclosure, an action performed by a base station may sometimes be performed by its upper node according to circumstances. Apparently, in a network including one or more network nodes having a base station, 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 (for example, considering a Mobility Management Entity (MME), a Serving-Gateway (S-GW), etc., but not limited to these), or a combination thereof.
[0748] Each mode / embodiment described in the present disclosure may be used alone, in combination, or switched during execution. In addition, the processing procedures, sequences, flowcharts, etc. of each mode / embodiment described in the present disclosure may also be rearranged as long as there is no contradiction. For example, for the methods described in the present disclosure, the elements of various steps are presented in an exemplary order, but are not limited to the specific order presented.
[0749] Each mode / embodiment described in the present disclosure can also be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, the fourth-generation mobile communication system (4th generation mobile communication system (4G)), the fifth-generation mobile communication system (5th generation mobile communication system (5G)), the sixth-generation mobile communication system (6th generation mobile communication system (6G)), the xth-generation mobile communication system (xth generation mobile communication system (xG (x is an integer or a decimal, for example))), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), systems using other appropriate wireless communication methods, next-generation systems obtained by enhancing, modifying, fabricating, or prescribing based on them, etc. In addition, multiple systems can also be combined (for example, a combination of LTE or LTE-A and 5G) and applied.
[0750] The description "based on" used in the present disclosure does not mean "only based on" unless otherwise specified. In other words, the description "based on" means both "only based on" and "at least based on".
[0751] Any reference to an element using designations such as "first", "second", etc. used in this disclosure does not comprehensively define the quantity or order of these elements. These designations can be used in this disclosure as a convenient method for distinguishing between two or more elements. Therefore, a reference to a first and a second element does not mean that only two elements can be employed, or that the first element must be prior to the second element in some form.
[0752] The term "determining" as used in this disclosure encompasses diverse actions in some cases. For example, "determining" can also be a case where judging, calculating, computing, processing, deriving, investigating, looking up (searching, inquiring) (such as searching in a table, database, or other data structure), ascertaining, etc. are regarded as performing "determining".
[0753] In addition, "determining" can also be a case where receiving (for example, receiving information), transmitting (for example, transmitting information), input, output, accessing (for example, accessing data in a memory), etc. are regarded as performing "determining".
[0754] In addition, "determining" can also be a case where resolving, selecting, choosing, establishing, comparing, etc. are regarded as performing "determining". That is, "determining" can also be a case where some actions are regarded as performing "determining".
[0755] In addition, "determining" can also be rewritten as "assuming", "expecting", "considering", etc.
[0756] The "maximum transmit power" described in this disclosure can either mean the maximum value of the transmit power, or the nominal maximum transmit power (the nominal UE maximum transmit power), or the rated maximum transmit power (the rated UE maximum transmit power).
[0757] As used in this disclosure, terms such as "connected" and "coupled", or all variations thereof, mean all direct or indirect connections or couplings between two or more elements, and can include the situation where there is one or more intermediate elements between the two elements that are "connected" or "coupled" to each other. The coupling or connection between elements can be physical, logical, or a combination of them. For example, "connected" can also be rewritten as "access".
[0758] In this disclosure, when two elements are connected, it is possible to consider being "connected" or "coupled" to each other using one or more wires, cables, printed electrical connections, etc., and as several non-limiting and non-inclusive examples, using electromagnetic energy with wavelengths in the radio frequency domain, microwave region, light (both visible and invisible) region, etc. to be "connected" or "coupled" to each other.
[0759] In this disclosure, the term "A is different from B" can also mean "A and B are different from each other". Additionally, this term can also mean "A and B are respectively different from C". Terms such as "separated" and "coupled" can also be interpreted in the same way as "different".
[0760] When using "include", "including", and their variations in this disclosure, these terms, like the term "comprising", are meant in an inclusive sense. Furthermore, the term "or" used in this disclosure does not mean exclusive or.
[0761] In this disclosure, for example, in the case where articles are added through translation such as a, an, and the in English, this disclosure can also include the case where the nouns following these articles are in the plural form.
[0762] In this disclosure, "below", "less than", "above", "more than", "equal to", etc. can also be rewritten with each other. In addition, in this disclosure, statements meaning "good", "bad", "big", "small", "high", "low", "early", "late", "wide", "narrow", etc. can also be rewritten with each other without being limited to the positive, comparative, and superlative degrees. Moreover, in this disclosure, statements meaning "good", "bad", "big", "small", "high", "low", "early", "late", "wide", "narrow", etc. can also be rewritten as expressions with "the i-th" (i is an arbitrary integer) attached without being limited to the positive, comparative, and superlative degrees (for example, "highest" can also be rewritten with "the i-th highest").
[0763] In the present disclosure, words such as "of", "for", "regarding", "related to", "associated with", etc. may also be rewritten with each other.
[0764] As described above, the invention related to the present disclosure has been described in detail. However, for those skilled in the art, the invention related to the present disclosure is obviously not limited to the embodiments described in the present disclosure. The invention related to the present disclosure can be implemented in the form of amendments and changes without departing from the gist and scope of the invention determined based on the description in the claims. Therefore, the description of the present disclosure is for illustrative purposes and does not carry any restrictive meaning with respect to the invention related to the present disclosure.
[0765] This application is based on Japanese Patent Application No. 2022-132833 filed on August 23, 2022. The entire content is incorporated herein.
Claims
1. A terminal, comprising: a receiving unit that receives first information and second information for transmission power control of a plurality of physical uplink shared channels (PUSCHs) using a plurality of transmission and reception points, i.e., a plurality of transmission and reception points (TRPs); and a control unit that, when a unified transmission setting indication state, i.e., a unified transmission configuration indicator (TCI) state, is not indicated, controls the transmission power of the PUSCH corresponding to a first TRP among the plurality of TRPs based on the first information, and controls the transmission power of the PUSCH corresponding to a second TRP among the plurality of TRPs based on the second information.
2. The terminal according to claim 1, wherein the PUSCH using the plurality of TRPs is at least one of a PUSCH using the unified TCI state and a PUSCH transmitted in the same time domain using a plurality of panels.
3. The terminal according to claim 1, wherein the first information and the second information are included in a setting of a terminal-specific uplink bandwidth part, and the first information and the second information are represented by a list of specific information.
4. The terminal according to claim 1, wherein the control unit determines the correspondence between the first information and the second information and the first TRP and the second TRP based on specific information.
5. A wireless communication method for a terminal, comprising: a step of receiving first information and second information for transmission power control of a plurality of physical uplink shared channels (PUSCHs) using a plurality of transmission and reception points, i.e., a plurality of transmission and reception points (TRPs); and a step of, when a unified transmission setting indication state, i.e., a unified transmission configuration indicator (TCI) state, is not indicated, controlling the transmission power of the PUSCH corresponding to a first TRP among the plurality of TRPs based on the first information, and controlling the transmission power of the PUSCH corresponding to a second TRP among the plurality of TRPs based on the second information.
6. A base station, comprising: a transmitting unit that transmits first information and second information for transmission power control of a plurality of physical uplink shared channels (PUSCHs) using a plurality of transmission and reception points, i.e., a plurality of transmission and reception points (TRPs); and a control unit that, when a unified transmission setting indication state, i.e., a unified transmission configuration indicator (TCI) state, is not indicated, uses the first information to indicate the transmission power of the PUSCH corresponding to a first TRP among the plurality of TRPs, and uses the second information to indicate the transmission power of the PUSCH corresponding to a second TRP among the plurality of TRPs.
Citation Information
Patent Citations
Shift device
JP2022132833A