Terminal and communication method

Abstract

A terminal is provided with: a reception unit that receives, from a base station, a setting relating to a channel state information (CSI) report; a control unit that, on the basis of a report setting included in the setting, performs measurement of a CSI-RS (Reference Signal: Reference Signal) transmitted from the base station; and a transmission unit that transmits a CSI report to the base station on the basis of the result of the measurement, and the control unit activates, on the basis of an identifier that specifies a sub-setting included in the report setting, an SP (Semi-Persistent) CSI or a Trigger A (Aperidic: aperiodic) CSI corresponding to the sub-setting.

Description

TECHNICAL FIELD

[0001] The present application relates to a terminal in a wireless communication system and a communication method. BACKGROUND

[0002] In NR (New Radio) (also referred to as "5G"), which is a successor system to LTE (Long Term Evolution), techniques satisfying a large capacity, a high-speed data transmission rate, a low latency, simultaneous connection of a plurality of terminals, a low cost, power saving, and the like, which are required conditions, are being researched (for example, Non-Patent Literature 1).

[0003] In addition, in Release 18 of 3GPP (registered trademark), in order to realize environmental sustainability, carbon neutrality, SDGs (Sustainable Development Goals), reduction of operational costs, and the like, a method of increasing importance of network energy savings and performing power saving in a network is researched (for example, Non-Patent Literature 2).

[0004] Prior Art Documents

[0005] Non-Patent Literature

[0006] Non-Patent Literature 1: 3GPP TS 38.300 V17.3.0 (2022-12)

[0007] Non-Patent Literature 2: "New WID: Network energy savings for NR", RP-223540, 3GPP TSG RAN Meeting #98-e, December 2022

[0008] Non-Patent Literature 3: 3GPP TS 38.331 V17.3.0 (2022-12)

[0009] Non-Patent Literature 4: 3GPP TS 38.321 V17.3.0 (2022-12) SUMMARY

[0010] Problems to be Solved by the Invention

[0011] In order to realize carbon neutrality and SDGs, the importance of saving base station power consumption is increasing. As a method of power reduction in a network, reinforcement in a spatial region and a power region is being studied. For example, in order to effectively adapt a power offset between spatial elements such as an antenna port, an activated transmitter chain, and PDSCH (Physical Downlink Shared Channel) and CSI-RS (Channel state information Reference Signal), a process related to CSI (Channel state information) involved in measurement and reporting needs to be reinforced.

[0012] The present application has been made in view of the above-described circumstances, and has an object to reinforce a process related to CSI (Channel state information) involved in measurement and reporting in a wireless communication system.

[0013] Means for solving the problem

[0014] According to the disclosed technology, a terminal is provided with a reception section that receives a setting related to CSI (Channel state information) reporting from a base station, a control section that performs measurement of a CSI-RS (Reference signal) transmitted from the base station based on a reporting setting included in the setting, and a transmission section that transmits a CSI report to the base station based on a result of the measurement, the control section activating SP (Semi-persistent)-CSI corresponding to a sub-setting included in the reporting setting or triggering A (Aperiodic)-CSI based on an identifier of the sub-setting.

[0015] Effects of the Invention

[0016] According to the disclosed technology, in a wireless communication system, a process related to CSI (Channel state information) involved in measurement and reporting can be reinforced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a diagram showing a configuration example of a wireless communication system.

[0018] Figure 2 is a diagram showing an example of a setting related to SP-CSI reporting in a PUCCH.

[0019] Figure 3is a diagram showing an example of a setting related to SP-CSI reporting in PUSCH.

[0020] Figure 4 is a diagram showing an example of a setting related to aperiodic CSI reporting.

[0021] Figure 5 is a diagram showing an example (1) of RRC specification change of the embodiment of the present application.

[0022] Figure 6 is a diagram showing an example (2) of RRC specification change of the embodiment of the present application.

[0023] Figure 7 is a diagram showing an example (3) of RRC specification change of the embodiment of the present application.

[0024] Figure 8 is a diagram showing an example (4) of RRC specification change of the embodiment of the present application.

[0025] Figure 9 is a diagram showing an example (1) of MAC-CE of the embodiment of the present application.

[0026] Figure 10 is a diagram showing an example (2) of MAC-CE of the embodiment of the present application.

[0027] Figure 11 is a diagram showing an example (3) of MAC-CE of the embodiment of the present application.

[0028] Figure 12 is a diagram showing an example (4) of MAC-CE of the embodiment of the present application.

[0029] Figure 13 is a diagram showing an example (5) of MAC-CE of the embodiment of the present application.

[0030] Figure 14 is a diagram showing an example (6) of MAC-CE of the embodiment of the present application.

[0031] Figure 15 is a diagram showing an example (7) of MAC-CE of the embodiment of the present application.

[0032] Figure 16 is a diagram showing an example of activation or deactivation of subsetting of the embodiment of the present application.

[0033] Figure 17 is a diagram showing an example (1) of triggering of subsetting of the embodiment of the present application.

[0034] Figure 18 is a diagram showing an example (5) of RRC specification change of the embodiment of the present application.

[0035] Figure 19 FIG. 8 is a diagram showing an example (6) of RRC specification change of the embodiment of the present application.

[0036] Figure 20 FIG. 9 is a diagram showing an example (7) of RRC specification change of the embodiment of the present application.

[0037] Figure 21 FIG. 10 is a diagram showing an example (2) of triggering of subsetting of the embodiment of the present application.

[0038] Figure 22 FIG. 11 is a diagram showing an example (8) of RRC specification change of the embodiment of the present application.

[0039] Figure 23 FIG. 12 is a diagram showing an example (9) of RRC specification change of the embodiment of the present application.

[0040] Figure 24 FIG. 13 is a diagram showing an example (3) of triggering of subsetting of the embodiment of the present application.

[0041] Figure 25 FIG. 14 is a diagram showing an example (10) of RRC specification change of the embodiment of the present application.

[0042] Figure 26 FIG. 15 is a diagram showing an example (11) of RRC specification change of the embodiment of the present application.

[0043] Figure 27 FIG. 16 is a diagram showing an example (4) of triggering of subsetting of the embodiment of the present application.

[0044] Figure 28 FIG. 17 is a diagram showing an example (5) of triggering of subsetting of the embodiment of the present application.

[0045] Figure 29 FIG. 18 is a diagram showing an example of functional structure of the base station 10 of the embodiment of the present application.

[0046] Figure 30 FIG. 19 is a diagram showing an example of functional structure of the terminal 20 of the embodiment of the present application.

[0047] Figure 31 FIG. 20 is a diagram showing an example of hardware structure of the base station 10 or the terminal 20 of the embodiment of the present application.

[0048] Figure 32 FIG. 21 is a diagram showing an example of structure of the vehicle 2001 in the embodiment of the present application. DETAILED DESCRIPTION

[0049] Hereinafter, an embodiment of the present application will be described with reference to the drawings. In addition, the embodiment described below is only an example, and the embodiment to which the present application is applied is not limited to the embodiment below.

[0050] In the operation of the wireless communication system of the embodiment of the present application, a prior art is appropriately used. Among them, the prior art is, for example, the existing LTE, but is not limited to the existing LTE. In addition, unless otherwise specified, the term "LTE" used in this specification has a broad meaning including LTE-Advanced and the mode after LTE-Advanced (for example: NR).

[0051] In addition, in the embodiment of the present application described below, the terms SS (Synchronization Signal), PSS (Primary SS), SSS (Secondary SS), PBCH (Physical broadcast channel), PRACH (Physical random access channel), PDCCH (Physical Downlink Control Channel), PDSCH (Physical Downlink Shared Channel), PUCCH (Physical Uplink Control Channel), PUSCH (Physical Uplink Shared Channel) and the like used in the existing LTE are used. These are for ease of description, and the same signals, functions and the like can be called by other names. In addition, the above terms in NR correspond to NR-SS, NR-PSS, NR-SSS, NR-PBCH, NR-PRACH and the like. However, even for the signals for NR, it is not necessarily explicitly described as "NR-".

[0052] In addition, in the embodiment of the present application, the duplex mode can be a TDD (Time Division Duplex) mode, can be an FDD (Frequency Division Duplex) mode, or can be a mode other than this (for example, a flexible duplex (Flexible Duplex) and the like).

[0053] Further, in the embodiment of the present application, the "Configure" wireless parameters and the like can be pre-configured with predetermined values, or can be configured with wireless parameters notified from the base station 10 or the terminal 20.

[0054] Figure 1 is a diagram showing a configuration example (1) of a wireless communication system in the embodiment of the present application. As shown in Figure 1 the wireless communication system in the embodiment of the present application includes the base station 10 and the terminal 20. In Figure 1 one base station 10 and one terminal 20 are each shown, but this is merely an example, and a plurality of each can be provided.

[0055] The base station 10 is a communication device that provides one or more cells and performs wireless communication with the terminal 20. The physical resources of a wireless signal are defined by a time domain and a frequency domain, the time domain can be defined by the number of OFDM (Orthogonal Frequency Division Multiplexing) symbols, and the frequency domain can be defined by the number of subcarriers or the number of resource blocks. The base station 10 transmits a synchronization signal and system information to the terminal 20. The synchronization signal is, for example, NR-PSS and NR-SSS. The system information is transmitted by, for example, NR-PBCH, and is also referred to as broadcast information. The synchronization signal and the system information can also be referred to as SSB (SS / PBCH block). As shown in Figure 1 the base station 10 transmits a control signal or data to the terminal 20 through DL (Downlink), and receives a control signal or data from the terminal 20 through UL (Uplink). Both the base station 10 and the terminal 20 are capable of performing beamforming to perform transmission and reception of signals. Further, both the base station 10 and the terminal 20 are capable of applying MIMO (Multiple Input Multiple Output) based communication to DL or UL. Further, both the base station 10 and the terminal 20 can also perform communication via a secondary cell (SCell) and a primary cell (PCell) based on CA (Carrier Aggregation). Also, the terminal 20 can perform communication via a primary cell of the base station 10 and a primary secondary cell group cell (PSCell) of another base station 10 based on DC (Dual Connectivity).

[0056] The terminal 20 is a communication device having a wireless communication function, such as a smartphone, a mobile phone, a tablet computer, a wearable terminal, or an M2M (Machine-to-Machine) communication module. Figure 1 As shown, terminal 20 receives control signals or data from base station 10 via DL and transmits control signals or data to base station 10 via UL, thereby utilizing various communication services provided by the wireless communication system. Furthermore, terminal 20 receives various reference signals transmitted from base station 10 and measures propagation path quality based on the reception results of these reference signals.

[0057] Terminal 20 can perform carrier aggregation, which bundles multiple cells (multiple CCs) to communicate with base station 10. Carrier aggregation uses one PCell (Primary Cell) and one or more SCells (Secondary Cells). Alternatively, a PUCCH-SCell with a PUCCH can be used.

[0058] To achieve carbon neutrality and the Sustainable Development Goals (SDGs), reducing base station power consumption is becoming increasingly important. Research is underway to enhance network power reduction in both spatial and power domains. For example, enhancing the processes involved in measuring and reporting CSI (Channel State Information) is necessary to effectively adapt power offsets between spatial elements such as antenna ports and active transmitter chains, as well as between the PDSCH (Physical Downlink Shared Channel) and CSI-RS (Channel State Information Reference Signal).

[0059] Here, for a CSI reporting configuration with L sub-configurations, the terminal 20 can support reporting CSI associated with N of the L sub-configurations in a single reporting instance. N is greater than 1 and less than L, with each CSI corresponding to one sub-configuration. This reporting can be applied to both SP-CSI (Semi-persistent CSI) and aperiodic CSI. Furthermore, the maximum values ​​of N and L can be determined based on UE capabilities.

[0060] Hereinafter, "CSI report setting" can also be able to be mutually replaced with "report setting" and "CSI-ReportConfig". Furthermore, the terminal 20 can also receive a setting relating to CSI measurement and reporting from the base station 10, perform measurement of the CSI-RS transmitted from the base station 10 based on the setting, and transmit a CSI report to the base station 10 based on the result of the measurement.

[0061] Figure 2 is a diagram showing an example of a setting relating to SP-CSI reporting in PUCCH. As shown in Figure 2 , the RRC sets a plurality of semiPersistentOnPUCCH in a report setting (CSI-ReportConfig), and a MAC-CE (Medium Access Control - Control Element) makes one or a plurality of report settings valid or invalid or active or inactive (refer to Non-Patent Literatures 3 and 4).

[0062] The field S0 of the MAC-CE corresponds to a report setting including a PUCCH resource for reporting SP-CSI in a notified BWP, the report setting having the smallest CSI-ReportConfigId in a list in which the type is set to semiPersistentOnPUCCH.

[0063] If the field S i of the MAC-CE is set to a value 1, the corresponding SP-CSI report setting is valid or active. If the field S i of the MAC-CE is set to a value 0, the corresponding SP-CSI report setting is invalid or inactive.

[0064] Figure 3 is a diagram showing an example of a setting relating to SP-CSI reporting in PUSCH. As shown in Figure 3 , the RRC sets a maximum of 64 CSI-SemiPersistentOnPUSCH-TriggerState, and a DCI triggers one CSI-SemiPersistentOnPUSCH-TriggerState. One CSI-SemiPersistentOnPUSCH-TriggerState corresponds to one CSI report setting.

[0065] Figure 4 is a diagram showing an example of a setting relating to aperiodic CSI reporting. As shown in Figure 4As shown, RRC configures up to 128 CSI-AperiodicTriggerState, MAC-CE down-selects up to 63, and DCI triggers one. One CSI-AperiodicTriggerState corresponds to up to 16 CSI-AssociatedReportConfigInfo, i.e., up to 16 CSI. One CSI-AssociatedReportConfigInfo corresponds to one CSI reporting configuration.

[0066] The field T0 / T1 / … of MAC-CE corresponds to the 1st / 2nd / … CSI-AperiodicTriggerState of CSI-AperiodicTriggerStateList. When Ti is 1, it is mapped to a DCI codepoint; otherwise, it is not mapped to a DCI codepoint. Up to 63 CSI-AperiodicTriggerState are mapped to a DCI codepoint.

[0067] SP-CSI reporting and aperiodic CSI reporting need to support the framework of reporting N CSI associated with N sub-sets in L sub-sets in one CSI reporting configuration.

[0068] On the other hand, in the framework of conventional CSI reporting, this action is not supported. The framework of conventional CSI reporting only supports triggering CSI associated with one or more CSI reporting configurations, but does not support triggering CSI associated with sub-sets in a certain CSI reporting configuration.

[0069] Here, in order to save network energy, the following actions 1) - 4) can also be performed.

[0070] Action 1) defines sub-set ID facing sub-set in CSI reporting configuration

[0071] Action 2) SP-CSI reporting in PUCCH

[0072] Action 3) SP-CSI reporting in PUSCH

[0073] Action 4) Aperiodic CSI reporting in PUSCH

[0074] Hereinafter, Action 1) defining sub-set ID facing sub-set in CSI reporting configuration is described.

[0075] Action 1-1) A new IE (Information element) can also be defined.

[0076] Action 1-1-1) The new IE can be a local ID identifying a CSI reporting sub-configuration within a certain CSI reporting configuration. Each CSI reporting sub-configuration within a certain CSI reporting configuration can be assigned an ID by the new IE. The value of the ID facing sub-configurations in different CSI reporting configurations can be the same or different. The maximum number of sub-configurations per CSI reporting configuration can be defined by an IE or a fixed value.

[0077] For example, the maximum number of sub-configurations per CSI reporting configuration can be 2, or 3, 4, or other values. For example, the maximum number of sub-configurations per CSI reporting configuration can be the same or different in SP-CSI reported by PUCCH, SP-CSI reported by PUSCH, A-CSI (Aperiodic CSI), and P-CSI (Periodic CSI).

[0078] Figure 5 FIG. 1-1-1 is a diagram illustrating Example (1) of RRC specification change of an embodiment of the present application. As shown in FIG. 1-1-1, a local ID facing a sub-configuration can be defined by an IE, for example, “CSI-ReportSubConfigId-r18”. The maximum number of IDs included in the list reportSubConfigList-r18 of the local ID can be the same as the maximum value of the ID. The maximum number of sub-configurations per CSI reporting configuration can be defined by an IE, for example, “maxNrofCSI-SubConfigPerReportConfig-r18”. Figure 5

[0079] Action 1-1-2) The new IE can be a global ID identifying a CSI reporting sub-configuration within all CSI reporting configurations. The global ID identifies only a sub-configuration. Each CSI reporting sub-configuration within all CSI reporting configurations can be assigned an ID by the new IE. The value of the ID facing sub-configurations in different CSI reporting configurations can be different. The maximum number of sub-configurations in all CSI reporting configurations can be defined by an IE or a fixed value.

[0080] For example, the maximum number of sub-configurations in all CSI reporting configurations can be 16, or 32, 48, 64, or other values.

[0081] Figure 6 FIG. 1-1-2 is a diagram illustrating Example (2) of RRC specification change of an embodiment of the present application. As shown in FIG. 1-1-2, a global ID facing a sub-configuration can be defined by an IE, for example, “CSI-ReportSubConfigId-r18”. The maximum number of IDs included in the list reportSubConfigList-r18 of the global ID can be the same as the maximum value of the ID. The maximum number of sub-configurations in all CSI reporting configurations can be defined by an IE, for example, “maxNrofCSI-SubConfig-r18”. Figure 6 ​As shown, the local ID per sub-configuration can be defined by the IE "CSI-ReportSubConfigId-r18", for example. The maximum number of sub-configurations can be defined by the IE "maxNrofCSI-SubConfigPerReportConfig-r18", for example, and the maximum value of the ID can be defined by the IE "maxNrofCSI-SubConfig". The maximum number of sub-configurations and the maximum value of the ID can also be different values.

[0082] Action 1-1-3) The new IE can be a global ID identifying one CSI reporting sub-configuration or one CSI reporting configuration. That is, the global ID identifies both the sub-configuration and the reporting configuration. Each CSI reporting sub-configuration within a CSI reporting configuration can be assigned an ID by the new IE. Each CSI reporting configuration not containing a CSI sub-configuration can be assigned an ID by the new IE. Each CSI reporting configuration containing more than one CSI sub-configuration can or can not be assigned an ID by the new IE.

[0083] The value of the global ID per sub-configuration or per CSI reporting configuration can be different. The maximum value of the global ID can be defined by an IE or a fixed value. For example, the maximum value of the global ID can be 48, or 56, 64, 80, or other values.

[0084] In the case where one CSI reporting configuration is assigned an ID by the new IE, or in the case where one or more sub-configurations within one CSI reporting configuration are assigned an ID by one or more new IEs, the legacy ID (i.e., CSI-ReportConfigId) can be ignored or can be used.

[0085] Figure 7 FIG. 1 is a diagram illustrating an example (1) of RRC specification change of an embodiment of the present application. As shown, the local ID per sub-configuration can be defined by the IE "CSI-ReportSubConfigId-r18", for example. Figure 7

[0086] Action 1-2) The legacy IE can be reused. Each CSI reporting sub-configuration can also be assigned a global ID by the legacy IE (i.e., CSI-ReportConfigId). The maximum number of reporting configurations can remain unchanged at 48, or can be extended to a large value, such as 56, 64, 80, or other values.

[0087] Figure 8 FIG. 2 is a diagram illustrating an example (2) of RRC specification change of an embodiment of the present application. As shown, the local ID per sub-configuration can be defined by the IE "CSI-ReportSubConfigId-r18", for example. Figure 8 ​As shown, a legacy ID "CSI-ReportConfigld" can be allocated per sub- setting. The maximum number of reporting settings can also be extended.

[0088] Hereinafter, Action 2) SP-CSI reporting in PUCCH is described.

[0089] A legacy MAC-CE uses a 1-bit field to inform activation or deactivation of each SP-CSI reporting. For network energy saving, to activate or deactivate sub- settings of each SP-CSI reporting, the notification based on MAC-CE needs to be enhanced.

[0090] Based on base station configuration and / or UE capability, the maximum value of 1) - 6) shown below or the maximum value of the sum of several of 1) - 6) shown below can be limited by a fixed value or a configured value.

[0091] 1) The number of reporting settings of SP-CSI in PUCCH that are configured and / or activated

[0092] 2) The number of reporting settings of SP-CSI in PUCCH that are configured with sub- settings and / or activated

[0093] 3) The number of reporting settings of SP-CSI in PUCCH that are configured without sub- settings and / or activated

[0094] 4) The number of reporting settings of SP-CSI in PUCCH that are configured with more than a predetermined number (e.g. 0 or 1) of sub- settings and / or activated

[0095] 5) The number of reporting settings of SP-CSI in PUCCH that are configured without sub- settings or with less than a predetermined number (e.g. 1 or 2) of sub- settings and / or activated

[0096] 6) The number of sub- settings of SP-CSI in PUCCH that are configured and / or activated

[0097] Action 2-0) As the notification principle of activation or deactivation of SP-CSI reporting settings, all sub- settings contained in one reporting setting can be activated or deactivated at the same time. The notification of activation or deactivation by a legacy MAC-CE targeting SP-CSI in PUCCH can also be reused. In the case where one reporting setting is activated or deactivated, and in the case where the reporting setting does not contain sub- settings, the CSI reporting can be activated or deactivated. Or, in the case where the reporting setting contains one or more sub- settings, all sub- settings can also be activated or deactivated.

[0098] Action 2-1) As a notification principle of activation or deactivation of SP-CSI reporting setting, it is possible to notify whether each sub-setting is activated or deactivated using an additional field included in a MAC-CE. Hereinafter, the additional field and the additional bit field can be replaced.

[0099] As shown below, the MAC-CE can notify which of each sub-setting within one reporting setting is activated or deactivated.

[0100] (a-1) Field of bitmap. 1 bit corresponds to one sub-setting within the reporting setting.

[0101] (a-2) Field that is jointly coded.

[0102] It is possible to decide whether the additional field for each reporting setting in the MAC-CE is present or not as shown below.

[0103] (b-1) Always present.

[0104] (b-2) Present only in the case where the corresponding reporting setting is present.

[0105] (b-3) Present only in the case where there is a sub-setting and the number of sub-settings is greater than a predetermined value (for example, 0 or 1).

[0106] (b-4) Present only in the case where both the above b-2 and the above b-3 are satisfied.

[0107] It is possible to set the bit length of the additional field for each reporting setting as shown below.

[0108] (c-1) Fixed bit length. For example, the fixed bit length can be decided based on the maximum number of sub-settings per CSI reporting setting.

[0109] (c-2) The bit length can be decided based on the actual number of sub-settings of the corresponding CSI reporting setting.

[0110] Action 2-2) For activation or deactivation of reporting setting, it is possible to jointly code the case where there is no sub-setting and the case where there is a sub-setting. One field can correspond to each SP-CSI reporting setting. As shown below, it is possible to set the bit length of the additional field for each reporting setting and sub-setting.

[0111] (d-1) Fixed bit length. For example, the fixed bit length can be decided based on the maximum number of sub-settings per CSI reporting setting.

[0112] (d-2) The bit length can be decided based on the actual number of sub-settings of the corresponding CSI reporting setting.

[0113] Action 2-3) can be performed based on the global ID of the SP-CSI report configuration without sub-configuration and the sub-configuration allocation in Action 1-1-2) or Action 1-2) above, to activate or deactivate.

[0114] (e-1) can set one 1-bit field for each SP-CSI report configuration without sub-configuration or each sub-configuration.

[0115] In addition, in order to activate or deactivate the sub-configuration of the SP-CSI report configuration in the PUCCH, a new value can also be defined in the LCID (see Non-Patent Literature 4).

[0116] In addition, in order to notify the bit length of the MAC-CE, a new bit field can be defined, or the conventional reserved bit in the MAC-CE can be reused. Figure 9 is a diagram showing an example (1) of the MAC-CE of the embodiment of the present application. This MAC-CE is an example of the MAC-CE that activates or deactivates the SP-CSI report in the PUCCH. For example, as shown in Figure 9 the highest reserved bit of Oct1 can be the conventional reserved bit.

[0117] For the activated sub-configuration within one report configuration, the base station 10 can notify the terminal 20 whether the CSI corresponding to the activated sub-configuration is separate CSI or one joint CSI. The joint CSI can or can not reduce the overhead. As an example of the overhead reduction, the CSI value after being differentially or jointly encoded can be the same amount in multiple CSIs.

[0118] For this notification, a bit field can be defined in the MAC-CE. For example, it can be a 1-bit field, and the value 0 indicates separate CSI, and the value 1 indicates one joint CSI after the overhead reduction. For example, it can also be a 2-bit field, and the value 0 indicates separate CSI, the value 1 indicates one joint CSI of the common CSI, the value 2 indicates one joint CSI of the differential CSI, and the value 3 indicates one joint CSI after being jointly encoded.

[0119] For this notification, a new IE in the RRC signaling can be defined, or the existing IE can be reused. For example, a new IE can be defined in the report configuration. The new IE can be CSI-ReportConfig or report sub-configuration, or CSI-ReportSubConfig (see Action 1 above). In addition, a new report quantity type can be defined for reportQuantity.

[0120] Figure 10is a diagram showing an example (2) of the MAC-CE of the embodiment of the present application. Figure 11 is a diagram showing an example (3) of the MAC-CE of the embodiment of the present application. Figure 10 and Figure 11 In the above Action 2-1), it is assumed that

[0121] (a-1) Field of the bitmap

[0122] (b-1) Always present

[0123] (c-1) Fixed bit length (2 bits, i.e., the maximum number of sub- configurations per reporting setting is set to 2)

[0124] is an example.

[0125] As shown in Figure 10 , S0-S3 can be conventional configurations, and an additional bit field can be configured at the end.

[0126] As shown in Figure 11 , the additional bit field can also be configured adjacent to S0-S3.

[0127] S0 corresponds to the reporting setting containing the smallest CSI-ReportConfigID in the list whose type is set to semiPersistentOnPUCCH or the smallest ID defined by Action 1) in the notified BWP for SP-CSI reporting-oriented PUCCH resources, and contains the reporting setting. S1 is also the same.

[0128] T 0，0 , T 0，1 corresponds to an indication of two sub- configurations that can be set within the reporting setting corresponding to S0. S1 is also the same.

[0129] T 0，0 , T 0，1 is the order of the sub- configuration IDs defined in Action 1) within the corresponding reporting setting. For example, T 0，0 corresponds to the smallest sub- configuration ID within the reporting setting corresponding to S0.

[0130] Figure 10 and Figure 11 The bit field F in

[0131] Alt.1) A field that notifies the bit length of the MAC-CE field. For example, the values 0 / 1 can notify the bit length of the MAC-CE field 16 bits / 24 bits.

[0132] Alt.2) It can be informed whether the CSI corresponding to the activated sub- setting within the reporting setting is reported through separate CSI reporting or through one joint CSI (with / without overhead reduction) reporting.

[0133] In S i In a case where the value is set to 0 and there is no sub-setting within the corresponding reporting setting, the reporting setting can be deactivated. In S i In a case where the value is set to 0 and there is a sub-setting within the corresponding reporting setting, all sub-settings can be deactivated.

[0134] In S i In a case where the value is set to 1 and there is no sub-setting within the corresponding reporting setting, the reporting setting can be activated. In S i In a case where the value is set to 1 and there is a sub-setting within the corresponding reporting setting, and in a case where T i，j In a case where the value is set to 1 and there is a corresponding sub-setting, the sub-setting can be activated. In S i In a case where the value is set to 1 and there is a sub-setting within the corresponding reporting setting, and in a case where T i，j In a case where the value is set to 0 and there is a corresponding sub-setting, the sub-setting can be deactivated.

[0135] Figure 12 FIG. 4 is a diagram illustrating an example (4) of a MAC-CE of an embodiment of the present application. Figure 13 FIG. 5 is a diagram illustrating an example (5) of a MAC-CE of an embodiment of the present application. Figure 14 FIG. 6 is a diagram illustrating an example (6) of a MAC-CE of an embodiment of the present application.

[0136] Figure 12 , Figure 13 and Figure 14 is set to

[0137] (a-1) Field of a bitmap

[0138] (b-4) Exists only in a case where both of the above-described b-2 and the above-described b-3 are satisfied

[0139] (c-2) Bit length can be decided based on the actual number of sub-settings of the corresponding CSI reporting setting

[0140] is an example.

[0141] As Figure 12 indicated, the sub-setting-oriented additional bit field can be collectively configured after S i . Figure 13 is a diagram in which a value is set in S i of Figure 12 . As Figure 13As shown in FIG, there are no additional fields corresponding to S0 and S1. The additional fields corresponding to S2 are T0 and T1, and the additional fields corresponding to S3 are T2 and T3. Figure 14 As shown, the additional bit field for the sub-setting can be combined with the corresponding S i Configured adjacently.

[0142] S0 corresponds to a report configuration including the PUCCH resources for SP-CSI reporting in the notified BWP and the smallest CSI-ReportConfigID in the list with the type set to semiPersistentOnPUCCH or the smallest ID defined in action 1). The same applies to S1 and subsequent steps.

[0143] Figure 12 and Figure 14 The bit field F in can be defined as follows.

[0144] Alt.1) This field indicates the bit length of the MAC-CE field. For example, a value of 0 or 1 indicates that the bit length of the MAC-CE field is 16 bits or 24 bits.

[0145] Alt.2) It can be notified whether the CSI corresponding to the activated sub-configuration within the reporting configuration is reported through separate CSI reporting or through a joint CSI (with / without overhead reduction) reporting.

[0146] In S i If set to 0 and there is no subsetting in the corresponding report setting, the report setting can be deactivated. i If it is set to 0 and there are sub-settings in the corresponding report setting, all sub-settings can be deactivated. i When it is set to 0, there may be no additional field for sub-settings.

[0147] In S i When set to 1 and there is no subsetting in the corresponding report setting, the report setting can be activated. i When it is set to 1 and there are N sub-settings (N=1) in the corresponding report setting, the sub-setting can be activated and the additional field may not exist.

[0148] If there are N (N > 1) sub-configurations within the corresponding report configuration, the additional field may be N bits, and the bit index k may be k = {j, j+1, ..., J+N-1}. The jth bit may correspond to the first sub-configuration within the report configuration, in the order of the sub-configuration IDs defined in step 1). The same applies to the jth and subsequent bits. k = {0, 1, ..., j-1} represents the bits already allocated to the additional field of the sub-configuration of the immediately preceding report configuration.

[0149] In addition, in a case where there are N (N > 1) sub-sets within the corresponding reporting setting, the additional field can be N bits, or can be configured in the corresponding S i The start bit of the additional field can correspond to the first sub-set in order of the sub-set ID within the corresponding reporting setting.

[0150] The T k set to 1, the corresponding sub-set is notified to be activated. The T k set to 0, the corresponding sub-set is notified to be deactivated.

[0151] Figure 15 is a diagram showing an example (7) of the MAC-CE of the embodiment of the present application. Figure 15 is set to

[0152] (d-1) Fixed bit length. For example, the fixed bit length can be decided based on the maximum number of sub-sets per CSI reporting setting

[0153] An example. In the example of Figure 15 S i is 2 bits.

[0154] S0 corresponds to the reporting setting containing the smallest CSI-ReportConfigID within the list of the type set to semiPersistentOnPUCCH or the smallest ID defined by Action 1) among the PUCCH resources facing the SP-CSI report in the notified BWP. S1 is also the same as this.

[0155] Figure 12 and Figure 14 The bit field F in

[0156] Alt.1) A field notifying the bit length of the MAC-CE field. For example, the value 0 / 1 can notify the bit length of the MAC-CE field 16 bits / 24 bits.

[0157] Alt.2) Whether the CSI corresponding to the activated sub-set within the reporting setting is reported by separate CSI or by one joint CSI (with / without overhead reduction) can be notified.

[0158] The bit size of S i is fixed, and can be set based on the maximum number of sub-sets per reporting setting. In a case where the number of sub-sets per reporting setting is 2, the bit size of S i may be 2. Table 1 shows S ithe definition of the action of activation or deactivation based on the value of S

[0159] [Table 1]

[0160]

[0161] As shown in Table 1, according to the value of S i , the sub setting activated is specified. In particular, when S i is 1 and there is no sub setting, the corresponding reporting setting is activated.

[0162] The sub settings of the reporting setting are ordered by the sub setting ID defined in Action 1).

[0163] In the case where the number of sub settings of each reporting setting is 3, the bit size of S i may be 3. Table 2 shows the definition of the action of activation or deactivation based on the value of S i with a bit size of 3.

[0164] [Table 2]

[0165]

[0166] As shown in Table 2, according to the value of S i , the sub setting activated is specified. In particular, when S i is 1 and there is no sub setting, the corresponding reporting setting is activated.

[0167] Figure 16 is a figure showing an example of activation or deactivation of a sub setting of an embodiment of the present application. Figure 16 is set to 1 in Action 2-3)

[0168] (e-1) can set one 1-bit field S

[0169] for each SP-CSI reporting setting in the case where there is no sub setting or for each sub setting.

[0170] T0 can correspond to a reporting setting, or a sub setting corresponding to the smallest sub setting ID defined in Action 1-1-2) or Action 1-2) with the type set to semiPersistentOnPUCCH within the list.

[0171] Figure 16 The bit field F in Action 1-1-2) or Action 1-2) can be defined as follows.

[0172] Alt. 1) A field notifying the bit length of the MAC-CE field. For example, the values 0 / 1 can notify the bit length of the MAC-CE field 16 bits / 24 bits.

[0173] Alt.2) It can be informed whether the CSI corresponding to the activated sub- setting within the reporting setting is reported by separate CSI or by one joint CSI (with / without overhead reduction).

[0174] It can also be informed by setting field T i to 1 that the corresponding reporting setting or sub-setting is activated. It can also be informed by setting field T i to 0 that the corresponding reporting setting or sub-setting is deactivated.

[0175] The following describes Action 3) SP-CSI reporting in PUSCH.

[0176] Based on the base station setting and / or UE capability, the maximum of 1) - 6) shown below or the maximum of the sum of several of 1) - 6) shown below can be limited by a fixed value or a set value.

[0177] 1) The number of reporting settings of SP-CSI in PUSCH that are set and / or activated

[0178] 2) The number of reporting settings of SP-CSI in PUSCH that are set and / or activated with sub-setting

[0179] 3) The number of reporting settings of SP-CSI in PUSCH that are set and / or activated without sub-setting

[0180] 4) The number of reporting settings of SP-CSI in PUSCH that are set and / or activated with sub-setting exceeding a predetermined number (e.g. 0 or 1)

[0181] 5) The number of reporting settings of SP-CSI in PUSCH that are set and / or activated without sub-setting or with sub-setting not exceeding a predetermined number (e.g. 1 or 2)

[0182] 6) The number of sub-settings of SP-CSI in PUCCH that are set and / or activated

[0183] Action 3-1) All sub-settings contained in one reporting setting can be activated or deactivated at the same time. SP-CSI in PUSCH can be triggered by a conventional DCI. In the case that one trigger state is activated and the reporting setting does not contain sub-settings, the CSI reporting can be activated or deactivated. Or, in the case that the reporting setting contains one or more sub-settings, all sub-settings can also be activated or deactivated.

[0184] Action 3-2) DCI can trigger sub-sets within the reporting setting.

[0185] Sub-sets can also be triggered as described below.

[0186] (a-1) A bitmap field can also be used. One bit corresponds to one subsetting within the report setting. The bit length can be equal to the maximum number of subsettings per CSI report setting. For example, in the case where the maximum number of subsettings per CSI report setting is 2, it can be 2 bits in length.

[0187] (a-2) A table of code points mapped with one or more subsettings can also be used. The bit length can be set based on the maximum number of subsettings per CSI report setting, or can be smaller than the maximum number.

[0188] The bits that trigger the subsetting can be included in any of the CSI request field, other fields, or a new field. The number of bits that trigger the subsetting in the DCI can be set to 0 to 2, 0 to 3, or 0 to 4 by RRC signaling. For example,

[0189] The number of bits that trigger the subsetting can be set in the manner of

[0190] reportTriggerSubSizeDCI-0-2-r18 INTEGER (0..2) / INTEGER (0..3) / INTEGER(0..4)

[0191] reportTriggerSubSize-r18 INTEGER (0..2) / INTEGER (0..3) / INTEGER (0..4)

[0192]

[0193] The maximum number of triggers for SP-CSI reporting in PUSCH can be reduced. For example, in the case where the maximum number of subsettings per CSI report setting is 2, or in the case where 2 bits are used for the trigger of the subsetting, the maximum number of triggers for SP-CSI reporting in PUSCH can be reduced from 64 to 16. That is, a maximum of 4 bits can be used for the notification of the trigger state of SP-CSI reporting.

[0194] Figure 17 is a diagram showing example (1) of the trigger of the subsetting of the embodiment of the present application. Figure 17 In Action 3-2), it is set to

[0195] (a-1) 2 bits of a bitmap, or

[0196] (a-2) 2 bits of a table of code points

[0197]

[0198] As Figure 17 ​​As shown, in the field of the activation trigger state included in the CSI request of the DCI, the CSI-SemiPersistentOnPUSCH-TriggerState to be activated is specified, and in the field of the activation sub-configuration, the Sub-configuration to be activated is specified.

[0199] The field of the activation trigger state is n bits at the beginning of the CSI request field, and for example, n = {0, 1, 2, 3, 4} can be used. This field activates one of the SP-CSI activation trigger states in the PUSCH.

[0200] The field of the activation sub-configuration is m bits at the end of the CSI request field, and for example, m = {0, 1, 2, 3, 4} can be used. In the case where the sub-configuration is set or more than one sub-configuration is set, this field activates one or more sub-configurations corresponding to the activated trigger state. Figure 17 is an example where m = 2 is set.

[0201] The sub-configurations within one SP-CSI reporting configuration can be ordered, for example, based on the sub-configuration ID defined in Action 1). The i-th sub-configuration can be the sub-configuration with the i-th smallest sub-configuration ID.

[0202] In the case where there is no sub-configuration in the corresponding reporting configuration in the trigger state activated by the field of the activation trigger state, the SP-CSI corresponding to the trigger state can be triggered. The terminal 20 can also ignore the field of the activation sub-configuration.

[0203] In the case where there is one sub-configuration in the corresponding reporting configuration in the trigger state activated by the field of the activation trigger state, the SP-CSI corresponding to the sub-configuration can be triggered. The terminal 20 can also ignore the field of the activation sub-configuration.

[0204] In the case where there are multiple sub-configurations in the corresponding reporting configuration in the trigger state activated by the field of the activation trigger state, the terminal 20 refers to the field of the activation sub-configuration,

[0205] (a-1) In the case where T i is set to 1, the i-th sub-configuration can be triggered. In the case where the number of sub-configurations is less than i, the terminal 20 can also ignore the bits of T i .

[0206] Alternatively,

[0207] (a-2) The terminal 20 can also trigger the sub-configuration based on the table of (a-2) shown below. Figure 17

[0208] ​Table 3 is an example of a table in the case where the maximum number of sub- configurations of each CSI report setting is set to 3.

[0209] [Table 3]

[0210]

[0211] Action 3-3) RRC signaling can inform which sub-configuration of the activated report setting the CSI is reported. A new IE that triggers a sub-configuration within CSI-SemiPersistentOnPUSCH-TriggerState can be defined. This IE can also inform which sub-configuration is triggered. The corresponding UE action can refer to the example of Action 3-2).

[0212] Action 3-4) For the activated sub-configuration within one report setting, the base station 10 can also inform the terminal 20 whether the CSI corresponding to the activated sub-configuration is separate CSI or one joint CSI. The joint CSI can or can not reduce overhead. As an example of overhead reduction, the CSI value after differential or joint encoding can be the same amount in multiple CSIs.

[0213] For this notification, the base station 10 can also use a bit field of DCI. For example, it can be a 1-bit field, and the value 0 indicates separate CSI, and the value 1 indicates one joint CSI after overhead reduction. For example, it can also be a 2-bit field, and the value 0 indicates separate CSI, the value 1 indicates one joint CSI of common CSI, the value 2 indicates one joint CSI of differential CSI, and the value 3 indicates one joint CSI after joint encoding.

[0214] In addition, for this notification, the base station 10 can define a new IE in RRC signaling, or can reuse an existing IE.

[0215] For example, a new report quantity type can be defined for reportQuantity. In addition, for example, a new IE can be defined in CSI-ReportConfig, CSI-ReportSubConfig (defined in Action 1), or CSI-SemiPersistentOnPUSCH-TriggerState.

[0216] Figure 18 FIG. 5 is a diagram showing an example (5) of RRC specification changes according to the embodiment of the present application. Figure 18This is an example of the new IEsp-CSI-SubcfgJointReport-R18 being included in CSI-SemiPersistentOnPUSCH-TriggerState. When sp-CSI-SubcfgJointReport-R18 is configured, a single joint CSI with reduced overhead can be reported. When sp-CSI-SubcfgJointReport-R18 is not configured, separate CSI can be reported.

[0217] Figure 19 This is a diagram showing an example (6) of a change in the RRC specification according to an embodiment of the present invention. Figure 19 An example of action 3-3) is shown. The triggered sub-configuration may be specified by a maximum of maxNrofCSI-SubConfigPerReportConfig-r18 sp-CSI-Trigger-r18.

[0218] Figure 20 This is a diagram showing an example (7) of a change in the RRC specification according to an embodiment of the present invention. Figure 20 An example of action 3-3) is shown. The sub-setting to be triggered can also be specified by sp-CSI-SubcfgTrigger-r18. Figure 20 In the table shown, the first sub-setting is activated when the value n1 is set, the second sub-setting is activated when the value n2 is set, and both the first and second sub-settings are activated when the value n3 is set.

[0219] Figure 21 This is a diagram showing example (2) of triggering of sub-settings according to an embodiment of the present invention. Figure 21 This is an example of action 3-3).

[0220] exist Figure 21 In the CSI request, the activation trigger status field can be the same as that of the traditional CSI request. The sub-configurations in an SP-CSI reporting configuration are sorted according to the sub-configuration IDs defined in action 1). The i-th sub-configuration can also be the sub-configuration with the i-th smallest sub-configuration ID.

[0221] In the trigger state activated by the Activate Trigger State field, if there is no sub-setting in the corresponding report setting, the SP-CSI corresponding to the trigger state can be triggered. The terminal 20 can ignore the sp-CSI-SubcfgTrigger-r18 included in the activated CSI-SemiPersistentOnPUSCH-TriggerState.

[0222] In the triggered state activated by the field of the activated trigger state, in the case where there is one subsetting in the corresponding report setting, SP-CSI corresponding to the subsetting can be triggered. The terminal 20 can ignore sp-CSI-SubcfgTrigger-r18 included in the activated CSI-SemiPersistentOnPUSCH-TriggerState.

[0223] In the triggered state activated by the field of the activated trigger state, in the case where there are multiple subsettings in the corresponding report setting, the terminal 20 refers to sp-CSI-SubcfgTrigger-r18 included in the activated CSI-SemiPersistentOnPUSCH-TriggerState,

[0224] (a-1) In the case where the i-th sp-CSI-SubcfgTrigger-r18 is Triggered, the i-th subsetting can be triggered. When the number of subsettings is less than i, the terminal 20 can ignore the i-th activated sp-CSI-SubcfgTrigger-r18.

[0225] Or,

[0226] (a-2) The terminal 20 can also trigger the subsetting based on the table of code points.

[0227] In the case where there are multiple subsettings in the corresponding report setting, and sp-CSI-SubcfgTrigger-r18 is not included in the activated CSI-SemiPersistentOnPUSCH-TriggerState, the terminal 20 can trigger all subsettings, can trigger only the 1st subsetting, or can not trigger the subsetting.

[0228] Hereinafter, Action 4) Aperiodic CSI reporting in PUSCH will be described.

[0229] Action 4-1) All subsettings in one report setting can be triggered at the same time. For A-CSI in PUSCH, the method based on the conventional MAC-CE and the conventional DCI can be reused.

[0230] In the case where one of CSI-AssociatedReportConfigInfo is triggered, and in the case where no subsetting is included in the report setting, the CSI report can be triggered. Or, in the case where one of CSI-AssociatedReportConfigInfo is triggered, and in the case where one or more subsettings are included in the report setting, all subsettings can be triggered.

[0231] Action 4-2) RRC signaling can inform which CSI of which subsetting of the activated reporting setting is reported.

[0232] Action 4-2-1) For triggering subsetting, a new IE contained in CSI- AssociatedReportConfigInfo can be defined. The IE informs which subsetting is triggered.

[0233] (a-1) For triggering subsetting, bitmap or IE map can be used. One bit or new IE can correspond to one subsetting. The length of the bit or the number of the IE can be equal to the maximum number of subsetting per CSI reporting setting.

[0234] (a-2) Table of codepoint can also be used for triggering subsetting.

[0235] Action 4-2-2) For triggering subsetting, a new IE contained in CSI- AperiodicTriggerState can be defined. The IE informs which subsetting is triggered.

[0236] The setting of triggering subsetting can be applied to all reporting settings or all AssociatedReportConfigInfo contained in one CSI-AperiodicTriggerState. (a-1) Bitmap, (a-2) table of codepoint can be used for triggering subsetting. The UE action is the same as Action 4-2-1).

[0237] Action 4-3) DCI can also inform which CSI of which subsetting of the activated reporting setting is reported. The bit of triggering subsetting can be contained in CSI request field, or other field, or new field. The setting of triggering subsetting can be applied to all reporting settings or all AssociatedReportConfigInfo contained in one CSI-AperiodicTriggerState. The UE action is the same as Action 4-2-2).

[0238] Action 4-4) For activated subsetting within one reporting setting, the base station 10 can also inform the terminal 20 whether the CSI corresponding to the activated subsetting is separate CSI or one joint CSI. The joint CSI can or can not reduce overhead. As an example of overhead reduction, the CSI value after differential or joint encoding can be the same amount in multiple CSIs.

[0239] For the notification, a bit field can be defined in DCI. For example, it can be 1 bit field, value 0 indicates separate CSI, value 1 indicates one joint CSI with overhead reduction. For example, it can also be 2 bit field, value 0 indicates separate CSI, value 1 indicates one joint CSI with common CSI, value 2 indicates one joint CSI with differential CSI, value 3 indicates one joint CSI jointly encoded. The notification can be applied to all reporting settings or all AssociatedReportConfigInfo included in one CSI-AperiodicTriggerState.

[0240] For the notification, a new IE in RRC signaling can be defined or an existing IE can be reused. For example, a new IE can be defined in reporting setting. A new report quantity type can also be defined for reportQuantity. A new IE included in CSI-ReportConfig, CSI-ReportSubConfig or CSI-AssociatedReportConfigInfo can be defined. The IE can be applied only to reporting setting corresponding to CSI-ReportConfig or CSI-AssociatedReportConfigInfo.

[0241] Figure 22 Fig. 8 is a diagram illustrating an example (8) of RRC specification change of an embodiment of the present application. Figure 22 An example is shown in which (a-1) is applied in Action 4-2-1). Aperiodic-CSI-SubcfgTrigger-r18 becomes a bitmap of maximum maxNrofCSI-SubConfigPerReportConfig-r18.

[0242] Figure 23 Fig. 9 is a diagram illustrating an example (9) of RRC specification change of an embodiment of the present application. Figure 23 An example is shown in which (a-2) is applied in Action 4-2-1). Sub- settings triggered by code points of n1 to n4 specified by Aperiodic-CSI-SubcfgTrigger-r18 are specified.

[0243] Figure 24 Fig. 10 is a diagram illustrating an example (3) of triggering of sub- settings of an embodiment of the present application. Figure 24 An example is shown in which (a-2) is applied in Action 4-2-1).

[0244] The legacy MAC-CE and the legacy DCI can be used to trigger one CSI- AperiodicTriggerState. The sub-sets within one A-CSI reporting set can be ordered, for example, based on the sub-set ID defined in Action 1.

[0245] For the triggered CSI-AperiodicTriggerState, the terminal 20 can confirm each CSI-AssociatedReportConfigInfo included in the CSI-AperiodicTriggerState, and act as follows 1) - 3).

[0246] 1) In the case where there is no sub-set in the reporting set of the triggered CSI-AssociatedReportConfigInfo, the A-CSI corresponding to the reporting set can be triggered. The terminal 20 can also ignore the Aperiodic-CSI-SubcfgTrigger-r18.

[0247] 2) In the case where there is one sub-set in the reporting set of the triggered CSI-AssociatedReportConfigInfo, the A-CSI corresponding to the sub-set can be triggered. The terminal 20 can also ignore the Aperiodic-CSI-SubcfgTrigger-r18.

[0248] 3) In the case where there are multiple sub-sets in the reporting set of the triggered CSI-AssociatedReportConfigInfo, the A-CSI corresponding to the sub-set can be triggered. The terminal 20 refers to the Aperiodic-CSI-SubcfgTrigger-r18,

[0249] (a-1) In the case where the i-th Aperiodic-CSI-SubcfgTrigger-r18 is Triggered, the i-th sub-set can be triggered. In the case where the number of sub-sets is less than i, the terminal 20 can ignore the i-th Aperiodic-CSI-SubcfgTrigger-r18.

[0250] Or,

[0251] (a-2) The terminal 20 can also trigger the sub-set based on the table of code points.

[0252] In a case where there are multiple sub-sets in the reporting setting of the triggered CSI-AssociatedReportConfigInfo, and in a case where Aperiodic-CSI-SubcfgTrigger-r18 is not included in the triggered CSI-AssociatedReportConfigInfo, the terminal 20 can trigger all the sub-sets, can trigger only the 1st sub-set, or can not trigger the sub-sets.

[0253] Figure 25 FIG. 10 is a diagram illustrating an example (10) of RRC specification change according to the embodiment of the present application. Figure 25 An example in which (a-1) is applied in Action 4-2-2) is illustrated. Aperiodic-CSI-SubcfgTrigger-r18 becomes a bitmap of the maximum maxNrofCSI-SubConfigPerReportConfig-r18.

[0254] Figure 26 FIG. 11 is a diagram illustrating an example (11) of RRC specification change according to the embodiment of the present application. Figure 26 An example in which (a-2) is applied in Action 4-2-2) is illustrated. Sub-sets triggered by the code points of n1 to n4 specified by Aperiodic-CSI-SubcfgTrigger-r18 are specified.

[0255] Figure 27 FIG. 14 is a diagram illustrating an example (4) of triggering of sub-sets according to the embodiment of the present application. Figure 27 An example in which (a-2) is applied in Action 4-2-2) is illustrated. As Figure 27 indicated, one CSI-AperiodicTriggerState is triggered by MAC-CE and DCI. By setting n3 in Aperiodic-CSI-SubcfgTrigger-r18, the 1st and 2nd sub-sets in all CSI-ReportConfig or CSI-AssociatedReportConfigInfo are triggered.

[0256] Figure 28 FIG. 15 is a diagram illustrating an example (5) of triggering of sub-sets according to the embodiment of the present application. Figure 28 An example in which (a-2) is applied in Action 4-3) is illustrated. As Figure 28As shown, in a field of a trigger state included in an activation CSI request, one CSI-AperiodicTriggerState is triggered. By setting n3 in a field of an activation subsetting, the first and second subsettings in all of the CSI-ReportConfig or CSI-AssociatedReportConfigInfo are triggered.

[0257] Through the above-described embodiments, the terminal 20 is able to perform actions related to activation and triggering of a subsetting included in a CSI report setting involved in measurement and reporting, and perform CSI reporting to the base station 10.

[0258] That is, in a wireless communication system, a process related to CSI (Channel state information) involved in measurement and reporting can be enhanced.

[0259] (Functional structure)

[0260] Next, a functional structure example of the base station 10 and the terminal 20 that perform the above-described processing and actions will be described. The base station 10 and the terminal 20 include functions that implement the above-described embodiments. However, the base station 10 and the terminal 20 can each have only a part of the functions in the embodiments.

[0261] <Base station 10>

[0262] Figure 29 is a diagram showing an example of a functional structure of the base station 10 in the embodiment of the present application. As shown, the base station 10 has a transmission section 110, a reception section 120, a setting section 130, and a control section 140. Figure 29 The functional structure shown is only an example. As long as the actions involved in the embodiment of the present application can be performed, the functional division and the names of the functional sections can be arbitrary. Figure 29 The transmission section 110 includes a function of generating a signal to be transmitted to the terminal 20 side and transmitting the signal in a wireless manner. In addition, the transmission section 110 transmits an inter-network node message to another network node. The reception section 120 includes a function of receiving various signals transmitted from the terminal 20 and acquiring, for example, higher layer information from the received signals. In addition, the transmission section 110 has a function of transmitting an NR-PSS, an NR-SSS, an NR-PBCH, a DL / UL control signal, and the like to the terminal 20. In addition, the reception section 120 receives an inter-network node message from another network node.

[0263]

[0264] ​The setting section 130 stores setting information set in advance and various setting information transmitted to the terminal 20. The content of the setting information is, for example, information relating to CSI measurement and reporting, and the like.

[0265] The control section 140 performs control to realize the functions explained in the embodiments. Further, as explained in the embodiments, the control section 140 performs control relating to CSI measurement and reporting. It is also possible to include the function section relating to signal transmission in the control section 140 in the transmission section 110 and the function section relating to signal reception in the control section 140 in the reception section 120.

[0266] <terminal 20>

[0267] Figure 30 is a diagram showing an example of the functional structure of the terminal 20 in the embodiment. As shown in Figure 30 , the terminal 20 has a transmission section 210, a reception section 220, a setting section 230, and a control section 240. Figure 30 The functional structure shown in the drawing is merely an example. The functional division and the names of the function sections can be arbitrary as long as the actions relating to the embodiment of the present application can be performed.

[0268] The transmission section 210 generates a transmission signal from transmission data and transmits the transmission signal in a wireless manner. The reception section 220 receives various signals in a wireless manner and acquires higher layer signals from the received physical layer signals. Further, the reception section 220 has a function of receiving NR-PSS, NR-SSS, NR-PBCH, DL / UL / SL control signals, and the like transmitted from the base station 10. Also, for example, as D2D communication, the transmission section 210 transmits PSCCH (Physical Sidelink Control Channel), PSSCH (Physical Sidelink Shared Channel), PSDCH (Physical Sidelink Discovery Channel), PSBCH (Physical Sidelink Broadcast Channel), and the like to other terminals 20, and the reception section 220 receives PSCCH, PSSCH, PSDCH, or PSBCH, and the like from other terminals 20.

[0269] The setting section 230 stores various setting information received by the reception section 220 from the base station 10. Further, the setting section 230 also stores setting information set in advance. The content of the setting information is, for example, information relating to CSI measurement and reporting, and the like.

[0270] The control section 240 performs control to realize the functions explained in the embodiments. Further, as explained in the embodiments, the control section 240 performs control relating to CSI measurement and reporting. The function section in the control section 240 relating to signal transmission can also be included in the transmitting section 210, and the function section in the control section 240 relating to signal reception can also be included in the receiving section 220.

[0271] (Hardware structure)

[0272] The block diagrams used in the explanation of the above-described embodiments Figure 29 and Figure 30 illustrate blocks in units of functions. These function blocks (structural sections) are realized by any combination of at least one of hardware and software. Further, the method of realizing each function block is not particularly limited. That is, each function block can be realized using one device that is physically or logically combined, or can be realized using a plurality of devices that are physically or logically separated and connected directly or indirectly (for example, using wires, wireless, or the like). The function block can also be realized in combination with software in the above-described one device or the above-described plurality of devices.

[0273] The functions include judgment, decision, determination, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, election, establishment, comparison, assumption, expectation, consideration, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, and the like, but are not limited to these. For example, a function block (structural section) that causes transmission to function is referred to as a transmitting unit or a transmitter. In any case, as described above, the method of realization is not particularly limited.

[0274] For example, the base station 10, the terminal 20, and the like in one embodiment of the present disclosure can also function as a computer that performs processing of the wireless communication method of the present disclosure. Figure 31 is a diagram illustrating an example of the hardware structure of the base station 10 and the terminal 20 relating to one embodiment of the present disclosure. The above-described base station 10 and terminal 20 can also be configured as a computer device that physically includes a processor 1001, a storage device 1002, an auxiliary storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like.

[0275] In addition, in the following description, the expression "device" can be replaced with "circuit," "apparatus," "unit," or the like. The hardware structures of the base station 10 and the terminal 20 can be configured to include one or more of the illustrated devices, or can be configured not to include a part of the devices.

[0276] Each function in the base station 10 and the terminal 20 is realized by reading predetermined software (program) into the hardware such as the processor 1001, the storage 1002, and causing the processor 1001 to perform arithmetic operation and control at least one of communication of the communication device 1004 or reading and writing of data in the storage 1002 and the auxiliary storage 1003.

[0277] The processor 1001 controls the entire computer by causing an operating system to operate, for example. The processor 1001 can also be configured by a central processing device (CPU: Central Processing Unit) including an interface with a peripheral device, a control device, an arithmetic device, a register, and the like. The above-described control section 140, the control section 240, and the like can also be realized by the processor 1001, for example.

[0278] Further, the processor 1001 reads a program (program code), a software module, or data, and the like from at least one of the auxiliary storage 1003 and the communication device 1004 to the storage 1002, and performs various processes based on the same. As the program, a program that causes a computer to perform at least a part of the operations described in the above-described embodiments is used. For example, Figure 29 The control section 140 of the illustrated base station 10 can also be realized by a control program stored in the storage 1002 and operating in the processor 1001. Also, for example, Figure 30 The control section 240 of the illustrated terminal 20 can also be realized by a control program stored in the storage 1002 and operating in the processor 1001. Although the above-described various processes are described as being executed by one processor 1001, the above-described various processes can also be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 can also be realized by one or more chips. In addition, the program can be transmitted from a network via a telecommunication line.

[0279] The storage 1002 is a computer-readable recording medium, and can be constituted by at least one of, for example, a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), a RAM (Random Access Memory), and the like. The storage 1002 can also be referred to as a register, a cache, a main memory (main storage), and the like. The storage 1002 is capable of holding a program (program code), a software module, and the like that can be executed in order to implement a communication method related to one embodiment of the present disclosure.

[0280] The auxiliary storage 1003 is a computer-readable recording medium, and can be constituted by at least one of, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (for example, a compact disc, a digital versatile disc, a Blu-ray (registered trademark) disc, an intelligent stick, a flash memory (for example, a card, a stick, a key drive), a Floppy (registered trademark) disk, a magnetic stripe, and the like. The above-described storage medium can be, for example, a database, a server, and another appropriate medium that includes at least one of the storage 1002 and the auxiliary storage 1003.

[0281] The communication device 1004 is hardware (a transceiver device) for performing communication between computers via at least one of a wired network and a wireless network, and can also be referred to as a network device, a network controller, a network card, a communication module, and the like. The communication device 1004 can also be constituted to include, for example, a high-frequency switch, a duplexer, a filter, a frequency synthesizer, and the like, in order to implement at least one of frequency division duplex (FDD) and time division duplex (TDD). For example, a transceiving antenna, an amplifying section, a transceiving section, a transmission path interface, and the like can also be implemented by the communication device 1004. The transceiving section can also be implemented physically or logically by a transmission section and a reception section.

[0282] The input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, and the like) that receives an input from the outside. The output device 1006 is an output device (for example, a display, a speaker, an LED lamp, and the like) that performs output to the outside. In addition, the input device 1005 and the output device 1006 can also be integrally constituted (for example, a touch panel).

[0283] Furthermore, the processor 1001, the storage device 1002, and other devices are connected via a bus 1007 for communicating information. The bus 1007 may be configured as a single bus or may be configured as different buses between devices.

[0284] Furthermore, the base station 10 and the terminal 20 may 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), or a field programmable gate array (FPGA). Part or all of each functional block may be implemented using this hardware. For example, the processor 1001 may be implemented using at least one of these hardware components.

[0285] Figure 32 2001 shows a structural example of a vehicle. Figure 32 As shown, vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, front wheels 2007, rear wheels 2008, an axle 2009, an electronic control unit 2010, various sensors 2021 to 2029, an information service unit 2012, and a communication module 2013. The various forms and embodiments described in this disclosure may also be applied to a communication device mounted on vehicle 2001, such as communication module 2013.

[0286] The driving unit 2002 is composed of, for example, an engine, a motor, or a hybrid of an engine and a motor. The steering unit 2003 includes at least a steering wheel (also referred to as a steering wheel) and is configured to steer at least one of the front wheels and the rear wheels based on the user's operation of the steering wheel.

[0287] Electronic control unit 2010 is composed of a microprocessor 2031, memory (ROM, RAM) 2032, and a communication port (IO port) 2033. Signals from various sensors 2021 to 2029 included in vehicle 2001 are input to electronic control unit 2010. Electronic control unit 2010 may also be referred to as an ECU (Electronic Control Unit).

[0288] As signals from various sensors 2021 to 2029, there are a current signal from a current sensor 2021 that monitors a current of a motor, a rotational speed signal of a front wheel or a rear wheel acquired by a rotational speed sensor 2022, an air pressure signal of the front wheel or the rear wheel acquired by an air pressure sensor 2023, a vehicle speed signal acquired by a vehicle speed sensor 2024, an acceleration signal acquired by an acceleration sensor 2025, a depression amount signal of an accelerator pedal acquired by an accelerator pedal sensor 2029, a depression amount signal of a brake pedal acquired by a brake pedal sensor 2026, an operation signal of a shift lever acquired by a shift lever sensor 2027, a detection signal for detecting an obstacle, a vehicle, a pedestrian, or the like acquired by an object detection sensor 2028, and the like.

[0289] The information service section 2012 is constituted by various devices for providing (outputting) various information such as driving information, traffic information, entertainment information, and one or more ECUs that control these devices, such as a car navigation system, an audio system, a speaker, a television, a radio, and the like. The information service section 2012 provides various multimedia information and multimedia services to an occupant of the vehicle 2001 using information acquired from an external device via the communication module 2013 or the like. The information service section 2012 can include an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, a touch panel, and the like) that accepts input from the outside, and can include an output device (for example, a display, a speaker, an LED lamp, a touch panel, and the like) that implements output to the outside.

[0290] The driving assistance system section 2030 is constituted by various devices for providing a function of preventing an accident from occurring or reducing a driving load on a driver, such as a millimeter wave radar, a LiDAR (Light Detection and Ranging), a camera, a positioner for positioning (for example, a GNSS or the like), map information (for example, a high-definition (HD) map, an autonomous vehicle (AV) map, or the like), a gyro system (for example, an IMU (Inertial Measurement Unit), an INS (Inertial Navigation System), or the like), an AI (Artificial Intelligence) chip, an AI processor, and one or more ECUs that control these devices. In addition, the driving assistance system section 2030 transmits and receives various information via the communication module 2013, and implements a driving assistance function or an autonomous driving function.

[0291] The communication module 2013 can communicate with the microprocessor 2031 and the constituent elements of the vehicle 2001 via the communication port. For example, the communication module 2013 transmits and receives data between the drive section 2002, the steering section 2003, the accelerator pedal 2004, the brake pedal 2005, the shift lever 2006, the front wheels 2007, the rear wheels 2008, the axles 2009, the microprocessor 2031 and the memory (ROM, RAM) 2032 within the electronic control section 2010, and the sensors 2021 to 2029 possessed by the vehicle 2001 via the communication port 2033.

[0292] The communication module 2013 can be controlled by the microprocessor 2031 of the electronic control section 2010, and is a communication device that can communicate with external devices. For example, various information is transmitted and received between the external devices via wireless communication. The communication module 2013 can be located inside or outside the electronic control section 2010. The external devices can also be base stations, mobile stations, and the like, for example.

[0293] The communication module 2013 can also transmit at least one of the signals input to the electronic control section 2010 from the various sensors 2021 to 2028 described above, information obtained based on the signals, and information based on input from the outside (user) obtained via the information service section 2012 to the external devices via wireless communication. The electronic control section 2010, the various sensors 2021 to 2028, the information service section 2012, and the like can also be referred to as input sections that accept input. For example, the PUSCH transmitted by the communication module 2013 can include information based on the above input.

[0294] The communication module 2013 receives various information (traffic information, signal information, inter-vehicle information, and the like) transmitted from the external devices, and displays it on the information service section 2012 possessed by the vehicle 2001. The information service section 2012 can also be referred to as an output section that outputs information (for example, outputs information to a display, a speaker, and the like based on the PDSCH (or data / information decoded from the PDSCH) received by the communication module 2013) to a device. In addition, the communication module 2013 stores the various information received from the external devices in the memory 2032 available to the microprocessor 2031. The microprocessor 2031 can also control the drive section 2002, the steering section 2003, the accelerator pedal 2004, the brake pedal 2005, the shift lever 2006, the front wheels 2007, the rear wheels 2008, the axles 2009, the sensors 2021 to 2029, and the like possessed by the vehicle 2001 based on the information stored in the memory 2032.

[0295] (Summary of Embodiments)

[0296] As described above, according to the embodiment of the present application, there is provided a terminal having: a reception section that receives a setting related to a CSI (Channel state information) report from a base station; a control section that performs measurement of a CSI-RS (Reference signal) transmitted from the base station based on a report setting included in the setting; and a transmission section that transmits a CSI report to the base station based on a result of the measurement, the control section activating SP (Semi-persistent)-CSI or triggering A (Aperiodic)-CSI corresponding to a sub-setting included in the report setting based on an identifier of the sub-setting.

[0297] With the above-described structure, the terminal 20 is able to perform an action related to activation and triggering of a sub-setting included in a CSI report setting involved in measurement and reporting, and perform a CSI report to the base station 10. That is, in a wireless communication system, it is possible to strengthen a process related to CSI (Channel state information) involved in measurement and reporting.

[0298] The control section can also activate SP-CSI or trigger A-CSI corresponding to a sub-setting included in one report setting based on an identifier of the sub-setting. With this structure, the terminal 20 is able to perform an action related to activation and triggering of a sub-setting included in a CSI report setting involved in measurement and reporting, and perform a CSI report to the base station 10.

[0299] The control section can also activate SP-CSI or trigger A-CSI corresponding to a sub-setting included in all report settings based on an identifier of the sub-setting. With this structure, the terminal 20 is able to perform an action related to activation and triggering of a sub-setting included in a CSI report setting involved in measurement and reporting, and perform a CSI report to the base station 10.

[0300] The control section can also activate SP-CSI or trigger A-CSI corresponding to a sub-setting included in all report settings and a report setting based on an identifier of the sub-setting. With this structure, the terminal 20 is able to perform an action related to activation and triggering of a sub-setting included in a CSI report setting involved in measurement and reporting, and perform a CSI report to the base station 10.

[0301] The control section can activate SP-CSI or trigger A-CSI corresponding to a sub-setting based on an identifier of a reporting setting. With this configuration, the terminal 20 can perform an action related to activation and triggering of a sub-setting included in a CSI reporting setting involved in measurement and reporting, and perform a CSI report to the base station 10.

[0302] Further, according to an embodiment of the present application, there is provided a communication method, by a terminal, comprising the steps of: receiving a setting related to CSI (Channel state information) reporting from a base station; performing measurement of a CSI-RS (Reference signal) transmitted from the base station based on a reporting setting included in the setting; and transmitting a CSI report to the base station based on a result of the measurement, based on determining an identifier of a sub-setting included in the reporting setting, activating SP (Semi-persistent)-CSI or triggering A (Aperiodic)-CSI corresponding to the sub-setting.

[0303] With the above-described configuration, the terminal 20 can perform an action related to activation and triggering of a sub-setting included in a CSI reporting setting involved in measurement and reporting, and perform a CSI report to the base station 10. That is, in a wireless communication system, a process related to CSI (Channel state information) involved in measurement and reporting can be strengthened.

[0304] (Supplement to Embodiments)

[0305] While the embodiments of the present invention have been described above, the disclosed invention is not limited to these embodiments. Persons skilled in the art will appreciate various variations, modifications, substitutions, and replacements. Specific numerical values ​​are used to facilitate understanding of the invention, but unless otherwise specified, these numerical values ​​are merely examples, and any appropriate value may be used. The distinctions between items in the above description are not essential to the present invention. Matters described in two or more items may be combined as needed, and matters described in one item may be applied to matters described in another item (as long as there is no inconsistency). The boundaries of functional units or processing units in functional block diagrams do not necessarily correspond to the boundaries of physical components. The operations of multiple functional units may be performed by a single physical component, or the operations of a single functional unit may be performed by multiple physical components. Regarding the processing steps described in the embodiments, the order of the processing may be reversed where there is no inconsistency. For ease of explanation, the base station 10 and terminal 20 are described using functional block diagrams, but such devices may also be implemented using hardware, software, or a combination thereof. The software that operates according to the embodiments of the present invention by the processor of the base station 10 and the software that operates according to the embodiments of the present invention by the processor of the terminal 20 can also be stored in random access memory (RAM), flash memory, read-only memory (ROM), EPROM, EEPROM, registers, hard disk (HDD), removable disk, CD-ROM, database, server, and other appropriate storage media.

[0306] In addition, the notification of information is not limited to the form / implementation method described in the present disclosure, and other methods may also be used. For example, the notification of information can be implemented through physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), high-layer signaling (e.g., RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals or a combination thereof. In addition, RRC signaling may also be referred to as an RRC message, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, etc.

[0307] The forms / embodiments described in this specification can also be applied to systems utilizing at least one of LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), 6th generation mobile communication system (6G), xth generation mobile communication system (xG), FRA (Future Radio Access), NR (new Radio), new radio access (NX), future generation radio access (FX), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth (registered trademark), other appropriate systems, and a next-generation system created by extending, modifying, creating, and standardizing these systems. In addition, a plurality of systems (for example, a combination of at least one of LTE and LTE-A and 5G, and the like) can be combined and applied.

[0308] For the processing steps, timing, flow, and the like of each form / embodiment described in this specification, the order can be changed without contradiction. For example, for the method described in this disclosure, the elements of various steps are prompted using the order of the examples, but are not limited to the specific order prompted.

[0309] In this specification, specific operations performed by base station 10 may also be performed by its upper node, depending on the situation. In a network consisting of one or more network nodes including base station 10, it is obvious that various operations for communicating with terminal 20 can be performed by at least one of base station 10 and other network nodes other than base station 10 (for example, but not limited to, an MME or S-GW). While the above example illustrates a single other network node other than base station 10, the other network node may also be a combination of multiple other network nodes (for example, an MME and an S-GW).

[0310] The information or signals described in this disclosure can be output from a higher layer (or lower layer) to a lower layer (or higher layer), or can be input or output via multiple network nodes.

[0311] Input or output information can be stored in a specific location (e.g., memory) or managed using a management table. Input or output information can be rewritten, updated, or appended. Output information can also be deleted. Input information can also be transmitted to other devices.

[0312] The determination in the present disclosure may be made using a value represented by one bit (0 or 1), a Boolean value (true or false), or a comparison of numerical values ​​(eg, comparison with a predetermined value).

[0313] Software, whether referred to as software, firmware, middleware, microcode, hardware description language, or by other names, shall be interpreted broadly to refer to instructions, sets of instructions, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, etc.

[0314] Furthermore, software, commands, information, and the like may also be transmitted and received via a transmission medium. For example, if software is transmitted from a webpage, server, or other remote source using at least one of a wired technology (coaxial cable, fiber optic cable, twisted pair, DSL, etc.) and a wireless technology (infrared, microwave, etc.), then at least one of these wired and wireless technologies is included within the definition of a transmission medium.

[0315] The information, signals, and / or the like described in the present disclosure can be represented using various different technologies and / or techniques. For example, data, commands, instructions, information, signals, bits, symbols, chips, and / or the like that can be referenced throughout the above description can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0316] In addition, the terms described in the present disclosure and the terms required for understanding the present disclosure can be replaced with terms having the same or similar meanings. For example, at least one of a channel and a symbol can also be a signal (signaling). Also, a signal can be a message. Also, a component carrier (CC) can be referred to as a carrier frequency, a cell, a frequency carrier, or the like.

[0317] The terms "system" and "network" used in the present disclosure can be used interchangeably.

[0318] Further, the information, parameters, and / or the like described in the present disclosure can be represented using absolute values, relative values with respect to predetermined values, or corresponding other information. For example, a radio resource can be indicated using an index.

[0319] The names used for the above-described parameters are non-limiting names in any respect. Further, the formulas and / or the like using these parameters are sometimes different from those explicitly disclosed in the present disclosure. Various channels (e.g., PUCCH, PDCCH, and / or the like) and information elements can be identified by all appropriate names, and thus various names assigned to the various channels and information elements are non-limiting names in any respect.

[0320] In the present disclosure, the terms "base station (BS)", "wireless base station", "base station device", "fixed station", "NodeB", "eNodeB (eNB)", "gNodeB (gNB)", "access point", "transmission point", "reception point", "transmission / reception point", "cell", "sector", "cell group", "carrier", "component carrier", and / or the like can be used interchangeably. The base station is sometimes referred to as a macro cell, a small cell, a femto cell, a pico cell, and / or the like.

[0321] A base station can host one or more (for example, three) cells. When a base station hosts multiple cells, the base station's overall coverage area can be divided into multiple smaller areas, each of which can be provided with communications services by a base station subsystem (for example, a small indoor base station (RRH)). Terms like "cell" or "sector" refer to a portion or the entire coverage area of ​​at least one of the base station and base station subsystem providing communications services within that coverage area.

[0322] In the present disclosure, the base station sending information to the terminal may also be replaced by the base station instructing the terminal to perform a control / action based on the information.

[0323] In the present disclosure, terms such as “mobile station (MS)”, “user terminal (user terminal)”, “user equipment (UE)”, and “terminal” can be used interchangeably.

[0324] For a mobile station, those skilled in the art sometimes also use the following terms to refer to it: subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other appropriate terms.

[0325] At least one of the base station and the mobile station can also be referred to as a transmission device, a reception device, a communication device, or the like. In addition, at least one of the base station and the mobile station can be a device mounted on a moving body, the moving body itself, or the like. The moving body refers to an object that can move, and the moving speed is arbitrary. In addition, of course, a case where the moving body is stopped is also included. The moving body includes, for example, a vehicle, a transport vehicle, an automobile, a motorcycle, a bicycle, a connected car, a shovel car, a bulldozer, a wheel loader, a dump truck, a forklift, a train, a bus, a rear car, a rickshaw, a ship and other watercraft, an airplane, a rocket, an artificial satellite, a drone (registered trademark), a multicopter, a quadcopter, a balloon, and an object mounted thereon, and is not limited thereto. In addition, the moving body can also be a moving body that autonomously travels based on a travel instruction. It can be a vehicle (for example, a car, an airplane, or the like), a moving body that moves in a unmanned manner (for example, a drone, a self-driving car, or the like), or a robot (manned or unmanned). In addition, at least one of the base station and the mobile station also includes a device that does not necessarily move when performing a communication operation. For example, at least one of the base station and the mobile station can be an IoT (Internet of Things) device such as a sensor.

[0326] In addition, the base station in the present disclosure can also be replaced with a user terminal. For example, a structure in which communication between the base station and the user terminal is replaced with communication between a plurality of terminals 20 (for example, can also be referred to as D2D (Device-to-Device), V2X (Vehicle-to-Everything), or the like) can also apply the forms / embodiments of the present disclosure. In this case, it can also be configured such that the terminal 20 has the functions of the base station 10 described above. In addition, the expressions such as "uplink" and "downlink" can also be replaced with expressions corresponding to inter-terminal communication (for example, "side"). For example, the uplink channel, the downlink channel, and the like can also be replaced with a side channel.

[0327] Likewise, the user terminal in the present disclosure can also be replaced with a base station. In this case, it can also be configured such that the base station has the functions of the user terminal described above.

[0328] The terms "determining" and "deciding" as used in the present disclosure also include a variety of actions. For example, "determining" and "deciding" can include actions such as "judging", "calculating", "computing", "processing", "deriving", "investigating", "looking up" (searching, inquiring) (for example, in tables, databases or other data structures), "ascertaining" a matter that has been "determined" or "decided". Furthermore, "determining" and "deciding" can include actions such as "receiving" (for example, receiving information), "transmitting" (for example, transmitting information), "input", "output", "accessing" (for example, accessing data in a memory) a matter that has been "determined" or "decided". Furthermore, "determining" and "deciding" can include actions such as "resolving", "selecting", "choosing", "establishing", "comparing" a matter that has been "determined" or "decided". That is, "determining" and "deciding" can include actions such as "judging", "calculating", "computing", "processing", "deriving", "investigating", "looking up" (searching, inquiring) (for example, in tables, databases or other data structures), "ascertaining" a matter that has been "determined" or "decided". Furthermore, "determining" and "deciding" can be replaced by "assuming", "expecting", "considering" and the like.

[0329] The terms "connected" and "coupled" or all modifications of these terms are intended to mean all direct or indirect connections or couplings between two or more elements. These terms can include the presence of one or more intervening elements between two elements that are "connected" or "coupled" to each other. The coupling or connection between the elements can be a physical or logical coupling or connection, or a combination thereof. For example, "access" can be used in place of "connection". In the present disclosure, it can be considered that two elements are "connected" or "coupled" to each other using at least one of a wire, a cable and a printed electric connection, and as some non-limiting and non-inclusive examples, electromagnetic energy having a wavelength in the radio frequency region, the microwave region and the light (including both visible and invisible) region is used to "connect" or "couple" to each other.

[0330] The reference signal can be simply referred to as RS (Reference Signal), and can be referred to as a pilot (Pilot) depending on the applied standard.

[0331] The expression "based on" used in the present disclosure does not mean "only based on" unless explicitly stated otherwise. In other words, the expression "based on" means both "only based on" and "at least based on".

[0332] Any reference to elements using the expressions "1st", "2nd", and the like used in the present disclosure does not mean that the number or order of the elements is limited. The expressions can be used in the present disclosure as a convenient method of distinguishing between two or more elements. Accordingly, a reference to a 1st element and a 2nd element does not mean that only two elements are taken or that the 1st element must precede the 2nd element in any form.

[0333] The expression "unit" in the structure of each of the above-described apparatuses can be replaced with "part", "circuit", "device", or the like.

[0334] When the expressions "include", "including", and variations thereof are used in the present disclosure, these expressions mean the same as the expression "comprising". Also, the expression "or" used in the present disclosure does not mean the exclusive or.

[0335] A radio frame can be composed of one or more frames in the time domain. In the time domain, one or more frames can be referred to as a subframe. A subframe can be composed of one or more slots in the time domain. A subframe can also be a fixed length of time (e.g., 1 ms) independent of numerology.

[0336] A numerology can be a communication parameter applied to at least one of transmission and reception of a certain signal or channel. The numerology can indicate at least one of, for example, a subcarrier spacing (SCS), a bandwidth, a symbol length, a cyclic prefix length, a transmission time interval (TTI), a number of symbols per TTI, a radio frame structure, a specific filtering process performed by a transceiver in the frequency domain, a specific windowing process performed by a transceiver in the time domain, and the like.

[0337] A slot can be constituted by one or a plurality of symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbols, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols, and the like) in the time domain. A slot can be a time unit based on a numerology.

[0338] A slot can include a plurality of mini-slots. Each mini-slot can be constituted by one or a plurality of symbols in the time domain. Further, a mini-slot can also be referred to as a sub-slot. A mini-slot can be constituted by a smaller number of symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a mini-slot can be referred to as PDSCH (or PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot can be referred to as PDSCH (or PUSCH) mapping type B.

[0339] A radio frame, a subframe, a slot, a mini-slot, and a symbol each represent a time unit in transmission of a signal. A radio frame, a subframe, a slot, a mini-slot, and a symbol can each be referred to by another corresponding term.

[0340] For example, 1 subframe can be referred to as a transmission time interval (TTI), a plurality of consecutive subframes can also be referred to as a TTI, 1 slot or 1 mini-slot can also be referred to as a TTI. That is, at least one of a subframe and a TTI can be a subframe (1 ms) in the existing LTE, can be a period shorter than 1 ms (for example, 1 to 13 symbols), or can be a period longer than 1 ms. In addition, a unit representing a TTI can not be referred to as a subframe, but can be referred to as a slot, a mini-slot, or the like.

[0341] Here, a TTI, for example, refers to a minimum time unit of scheduling in wireless communication. For example, in an LTE system, a base station performs scheduling in which a radio resource (a frequency bandwidth, a transmission power, and the like, which can be used in each terminal 20) is allocated to each terminal 20 in units of a TTI. In addition, the definition of a TTI is not limited thereto.

[0342] A TTI can be a transmission time unit of a data packet (a transport block) after channel coding, a code block, a codeword, or the like, or can be a processing unit of scheduling, link adaptation, or the like. In addition, when a TTI is given, a time interval (for example, a number of symbols) in which a transport block, a code block, a codeword, or the like is actually mapped can be shorter than the TTI.

[0343] In addition, in a case where 1 slot or 1 mini-slot is referred to as a TTI, one or more TTIs (i.e., one or more slots or one or more mini-slots) can also be the minimum time unit of scheduling. Furthermore, the number of slots (mini-slots) constituting the minimum time unit of scheduling can also be controlled.

[0344] A TTI having a time length of 1 ms can also be referred to as a normal TTI (TTI in LTE Rel. 8-12), a normal TTI (normal TTI), a long TTI (long TTI), a normal subframe, a normal subframe (normal subframe), a long (long) subframe, a slot, and the like. A TTI shorter than the normal TTI can also be referred to as a shortened TTI, a short TTI (short TTI), a partial TTI (partial or fractional TTI), a shortened subframe, a short (short) subframe, a mini-slot, a sub-slot, a slot, and the like.

[0345] In addition, for a long TTI (long TTI) (e.g., a normal TTI, a subframe, and the like), it can be understood as a TTI having a time length of more than 1 ms, and for a short TTI (short TTI) (e.g., a shortened TTI, and the like), it can be understood as a TTI having a TTI length less than that of the long TTI (long TTI) and a TTI length of 1 ms or more.

[0346] A resource block (RB: Resource block) is a resource allocation unit in the time domain and the frequency domain, and can include one or more contiguous subcarriers (subcarrier) in the frequency domain. The number of subcarriers included in the RB can be the same regardless of the numerology, and can be 12, for example. The number of subcarriers included in the RB can also be determined according to the numerology.

[0347] In addition, the time domain of the RB can include one or more symbols, and can be the length of 1 slot, 1 mini-slot, 1 subframe, or 1 TTI. One TTI, one subframe, and the like can each be constituted by one or more resource blocks.

[0348] In addition, one or more RBs can also be referred to as a physical resource block (PRB: Physical RB), a subcarrier group (SCG: Sub-Carrier Group), a resource element group (REG: Resource Element Group), a PRB pair, an RB pair, and the like.

[0349] In addition, a resource block can be constituted by one or more resource elements (RE: Resource Element). For example, 1 RE can be a wireless resource area of 1 subcarrier and 1 symbol.

[0350] A bandwidth part (BWP: Bandwidth Part) (may also be referred to as a partial bandwidth, etc.) can also indicate a subset of contiguous common RBs (resource blocks) for a certain numerology in a certain carrier. Here, the common RBs can be determined by the index of the RBs with reference to a common reference point of the carrier. The PRB can be defined in a certain BWP and numbered within the BWP.

[0351] The BWP can include a BWP for UL (UL BWP) and a BWP for DL (DL BWP). One or more BWPs can be configured for a UE within one carrier.

[0352] At least one of the configured BWPs can be active, and it can not be assumed that the UE transmits / receives a predetermined signal / channel outside the active BWP. In addition, "cell", "carrier", etc. in the present disclosure can be replaced with "BWP".

[0353] The structures of the radio frame, the subframe, the slot, the mini-slot, the symbol, etc. described above are merely examples. For example, the number of subframes included in the radio frame, the number of slots per subframe or radio frame, the number of mini-slots included in the slot, the number of symbols and RBs included in the slot or mini-slot, the number of subcarriers included in the RB, and the number of symbols, symbol length, cyclic prefix (CP) length, etc. within the TTI can be variously changed.

[0354] In the present disclosure, for example, in the case where an article is added by a translation of a, an, and the in English, the present disclosure also includes a case where the article following these articles is plural.

[0355] In the present disclosure, the expression "A and B are different" can mean "A and B are mutually different". In addition, the expression can also mean "A and B are each different from C". The expressions "separate", "combine", etc. can also be interpreted as "different" as well.

[0356] Each form / implementation described in the present disclosure can be used alone, in combination, and can also be switched in use according to execution. In addition, the notification of predetermined information (for example, the notification of "X") is not limited to be explicitly performed, and can also be implicitly performed (for example, without the notification of the predetermined information).

[0357] The present disclosure has been described in detail above, but it should be apparent that the present disclosure is not limited to the embodiments described above, but can be carried out in various changes and modified modes without departing from the spirit and scope of the present disclosure defined by the claims. The description of the present disclosure is intended for the purpose of illustration only and is not intended to limit the present disclosure in any way.

[0358] Explanation of reference numerals

[0359] 10 base station

[0360] 110 transmission section

[0361] 120 reception section

[0362] 130 setting section

[0363] 140 control section

[0364] 20 terminal

[0365] 210 transmission section

[0366] 220 reception section

[0367] 230 setting section

[0368] 240 control section

[0369] 30 core network

[0370] 1001 processor

[0371] 1002 storage device

[0372] 1003 auxiliary storage device

[0373] 1004 communication device

[0374] 1005 input device

[0375] 1006 output device

[0376] 2001 vehicle

[0377] 2002 drive section

[0378] 2003 steering section

[0379] 2004 accelerator pedal

[0380] 2005 brake pedal

[0381] 2006 shift lever

[0382] 2007 front wheel

[0383] 2008 rear wheel

[0384] 2009 axle

[0385] 2010 electronic control unit

[0386] 2012 information service unit

[0387] 2013 communication module

[0388] 2021 current sensor

[0389] 2022 rotational speed sensor

[0390] 2023 air pressure sensor

[0391] 2024 vehicle speed sensor

[0392] 2025 acceleration sensor

[0393] 2026 brake pedal sensor

[0394] 2027 gear lever sensor

[0395] 2028 object detection sensor

[0396] 2029 accelerator pedal sensor

[0397] 2030 driving assistance system unit

[0398] 2031 microprocessor

[0399] 2032 memory (ROM, RAM)

[0400] 2033 communication port (I / O port)

Claims

1. A terminal comprising: a receiving unit configured to receive, from a base station, a setting related to a CSI report, i.e., a channel state information report; a control unit configured to measure a CSI-RS transmitted from the base station based on a report configuration included in the configuration, the CSI-RS being a channel state information reference signal; and a sending unit, configured to send a CSI report to the base station based on the measurement result, The control unit activates the SP-CSI corresponding to the sub-setting or triggers the A-CSI based on the identifier of the sub-setting included in the reporting setting, where the SP-CSI refers to semi-persistent channel state information and the A-CSI refers to non-periodic channel state information.

2. The terminal according to claim 1, wherein: The control unit activates SP-CSI or triggers A-CSI corresponding to a sub-configuration based on an identifier identifying the sub-configuration included in one reporting configuration.

3. The terminal according to claim 1, wherein: The control unit activates the SP-CSI corresponding to the sub-configuration or triggers the A-CSI based on the identifier identifying the sub-configuration included in all the report configurations. The terminal according to claim 1 , wherein: The control unit activates the SP-CSI corresponding to the sub-configuration or triggers the A-CSI based on the identifier identifying the sub-configuration and the reporting configuration included in all the reporting configurations. The terminal according to claim 1 , wherein: The control unit activates the SP-CSI corresponding to the sub-configuration or triggers the A-CSI based on the identifier identifying the reporting configuration.

6. A communication method, wherein: The terminal performs the following steps: Receiving settings related to CSI reporting, i.e., channel state information reporting, from a base station; performing measurement of a CSI-RS transmitted from the base station based on a reporting configuration included in the configuration, the CSI-RS being a channel state information reference signal; Sending a CSI report to the base station based on a result of the measurement; as well as Based on determining the identifier of the sub-setting included in the reporting setting, the SP-CSI corresponding to the sub-setting is activated or the A-CSI is triggered, where the SP-CSI refers to semi-persistent channel state information and the A-CSI refers to aperiodic channel state information.

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