Terminal, wireless communication method and base station

Abstract

A terminal involved in one method of the present disclosure comprises: a sending unit, which sends a report related to the activation or deactivation of the panel; and a control unit, which controls at least one of the retransmission of the report and the activation or deactivation of the panel based on whether or not permission information for the report is received and at least one of the contents of the permission information.

Description

Technical Field

[0001] The present disclosure relates to a terminal, a wireless communication method, and a base station in a next-generation mobile communication system. Background Art

[0002] In the Universal Mobile Telecommunications System (UMTS) network, Long Term Evolution (LTE) is standardized for the purpose of further high-speed data rate, low latency, etc. (Non-Patent Document 1). In addition, LTE-Advanced (3GPP Rel. 10-14) is standardized for the purpose of further increasing the capacity and sophistication of LTE (Release (Rel.) 8, 9)).

[0003] Successor systems of LTE (for example, also referred to as fifth generation mobile communication system (5G), 5G+(plus), New Radio (NR), 3GPP Rel.15 and later, etc.) are also being studied.

[0004] In an existing LTE system (e.g., 3GPP Rel.8-14), a user terminal (User Equipment (UE)) uses at least one of a UL data channel (e.g., a physical uplink shared channel (PUSCH)) and a UL control channel (e.g., a physical uplink control channel (PUCCH)) to send uplink control information (UCI)).

[0005] Prior art literature

[0006] Non-patent literature

[0007] Non-patent document 1: 3GPP TS 36.300 V8.12.0 “Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2 (Release 8)”, April 2010 Summary of the invention

[0008] Problems to be solved by the invention

[0009] In future wireless communication systems (e.g., NR), the UE determines the DL reception beam (spatial reception filter) and the UL transmission beam (spatial transmission filter) based on information notified from the base station. In addition, the UE switches multiple UE panels (panels, antenna panels) to perform DL reception and UL transmission.

[0010] However, it is unclear how the UE controls the switching of the panel (eg, activation / deactivation). If the activation / deactivation of the panel cannot be properly controlled, the power consumption may increase, the beam gain may decrease, and the system performance may be degraded.

[0011] Therefore, one of the objects of the present disclosure is to provide a terminal, a wireless communication method, and a base station capable of appropriately controlling switching of panels.

[0012] Means for solving problems

[0013] A terminal involved in one embodiment of the present invention is characterized in that it has: a sending unit that sends a report related to the activation or deactivation of the panel; and a control unit that controls at least one of the retransmission of the report and the activation or deactivation of the panel based on whether or not permission information for the report is received and at least one of the contents of the permission information.

[0014] Effects of the Invention

[0015] According to one aspect of the present disclosure, it is possible to appropriately control switching of panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a diagram showing panel usage of UE in 3GPP Rel.15.

[0017] Figure 2A as well as Figure 2B This is a diagram showing an example of the A / D reporting operation of the panel determined by the UE.

[0018] Figure 3This is a diagram showing an example of UE operation of A / D reporting of the panel involved in the first embodiment.

[0019] Figure 4A as well as Figure 4B This is a diagram showing an example of UE operation of A / D reporting of a panel according to the second embodiment.

[0020] Figure 5A as well as Figure 5B This is a diagram showing an example of UE operation of A / D reporting of a panel according to the third embodiment.

[0021] Figure 6 It is a diagram showing another example of UE operation of A / D reporting of the panel involved in the third embodiment.

[0022] Figure 7 This is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment.

[0023] Figure 8 This is a diagram showing an example of the configuration of a base station according to an embodiment.

[0024] Fig. 9 This is a diagram showing an example of a configuration of a user terminal according to an embodiment.

[0025] Fig.10 This is a diagram showing an example of the hardware configuration of a base station and a user terminal involved in one embodiment. DETAILED DESCRIPTION

[0026] Figure 1 This is a diagram showing the panel usage of UE in 3GPP Rel.15. In Rel.15, the selection / usage of the uplink (UL) panel of the user terminal (User Equipment (UE)) is transparent to the network (NW, e.g., base station, gNB). The UE uses only one panel for UL transmission at a time and does not use multiple panels simultaneously. Figure 1 In the example shown, the UE uses Panel #1 for UL transmission. In addition, the UE can also dynamically switch the panel to be used and use it through an implicit method (notification).

[0027] However, in Rel.15, in order to support beam management, the UE keeps the power of multiple panels on. Since the power of the panels is always on, if the communication speed of the panel in use decreases due to obstacles, etc., the UE can quickly switch to other panels, thereby improving performance. However, since the power of multiple panels is always on, there are problems such as high power consumption and low efficiency.

[0028] In order to optimize the power consumption of the UE, it is effective to deactivate the panels that are not used by the UE. In Rel.16, the activation / deactivation of the UE panel depends on the UE implementation and is not recognized by the base station (e.g., gNB) (not visible (transparent) from the base station). There is no mechanism to support efficient activation / deactivation of the UE panel and align the activation / deactivation information of the UE panel between the base station and the UE.

[0029] If the UE panel is not activated / deactivated properly, the system performance may be degraded due to increased power consumption, reduced beam gain, etc.

[0030] Therefore, after Rel. 17, the switching of activation / deactivation of the UE panel to be shared between the UE and the base station is being studied. For example, the activation / deactivation of the UE panel may also be controlled (or determined, judged) by the UE and reported (or notified) to the base station (reporting operation A). Alternatively, the activation / deactivation of the UE panel may also be reported by the UE and confirmed (permitted) by the base station (reporting operation B).

[0031] <Report Operation A>

[0032] Figure 2A This shows an example of a case where the UE controls activation / deactivation (hereinafter also referred to as A / D) of a panel of its own terminal and notifies the base station of information on activation / deactivation of the panel.

[0033] For example, the UE determines activation / deactivation of a panel of the terminal, and activates / deactivates the determined panel. In addition, information related to the panel to be activated / deactivated is reported to the base station. After a specific period has passed since the information related to the activation / deactivation of the panel was reported to the base station, the UE performs an operation corresponding to the panel to be activated / deactivated.

[0034] The specific period may also be referred to as an offset period. The offset period may also be defined by a specific value. The specific value may also be changed according to the subcarrier spacing set in the channel (e.g., PUCCH / PUSCH) used in the report of information related to activation / deactivation (hereinafter also referred to as A / D report).

[0035] The specific value may also be composed of a first value (eg, X) and a second value representing the number of time slots (eg, N slot subframe,μ ) is represented by at least one of ). Figure 2A, a case where the offset period becomes X is shown. X may also be predefined according to the specification. Alternatively, X may also be determined according to the UE capability (e.g., UE capability). In this case, the UE capability information (e.g., X corresponding to the UE capability) may also be reported from the UE to the base station. Alternatively, X may also be notified to the UE from the base station using at least one of the higher layer signaling and the DCI. For example, the base station may also notify the UE of X based on the UE capability information reported from the UE.

[0036] For example, when the UE reports information related to activation / deactivation in time slot #n, the UE performs the operation corresponding to the panel that is activated / deactivated from the first time slot after time slot #n+X. The time slot may also be replaced by a subframe, a subslot, or a symbol. The operation corresponding to the panel that is activated may also be replaced by an operation that utilizes the activated panel. The operation corresponding to the panel that is deactivated may also be replaced by an operation that does not utilize the deactivated panel.

[0037] In the case of activation of the reporting panel, the UE may also control to perform an operation (or communication operation) using the activated panel after an offset period (e.g., X). In the case of deactivation of the reporting panel, the UE may also control not to perform (or stop) an operation using the deactivated panel after an offset period.

[0038] The operation utilizing the panel (or, communication operation) may also refer to the sending processing / receiving processing utilizing the panel, for example, it refers to at least one of the blind detection operation of PDCCH in the set search space, the receiving operation of PDSCH scheduled from NW through DCI, etc., the sending operation of PUSCH scheduled from NW through DCI, etc., and the sending operation of PUCCH.

[0039] <Report Operation B>

[0040] Figure 2B An example of a situation in which the UE reports (or requests) the activation / deactivation of a panel of the terminal to the base station, and activates / deactivates the panel after confirmation (or permission) from the base station is shown. The UE reports the panel that it wants to activate / deactivate to the base station, but it can also be configured so that the panel cannot be activated / deactivated before receiving confirmation / permission from the base station.

[0041] For example, the UE determines activation / deactivation of a panel of the terminal (for example, a panel to be activated / deactivated), and reports (or requests) the activation / deactivation of the determined panel to the base station. The base station may also send information (hereinafter also referred to as permission information) notifying permission (or trigger / request) for activation / deactivation of the panel to the UE based on the report (or request) from the UE.

[0042] After a specific period has passed since the UE received the permission information transmitted by the base station, the UE performs an operation corresponding to the panel being activated / deactivated. The specific period may also be referred to as an offset period. Figure 2B In the figure, the offset period becomes 3N slot subframe,μ (+X) In addition, the offset period is not limited to 3N slot subframe,μ , other values ​​can also be set.

[0043] For example, in the case where the UE reports activation / deactivation related information in time slot #n, the UE slot subframe,μ +(X) and the operation corresponding to the panel to be activated / deactivated is performed from the first time slot after +(X). The time slot may also be replaced by a subframe, a subslot, or a symbol. The operation corresponding to the panel to be activated may also be replaced by an operation using the activated panel. The operation corresponding to the panel to be deactivated may also be replaced by an operation not using the deactivated panel.

[0044] When activation of the panel is permitted, the UE may also be controlled to perform an operation (or a communication operation) using the panel for which activation is permitted after an offset period (e.g., X) has elapsed. When deactivation of the panel is permitted, the UE may also be controlled not to perform (or stop) an operation using the panel for which deactivation is permitted after an offset period has elapsed.

[0045] In the case of applying the reporting operation B, the UE reports to the base station the panel that it wants to activate / deactivate, but cannot activate / deactivate the panel before receiving permission information from the base station. In this case, after the UE reports the A / D (or after triggering the A / D report), if it cannot receive permission information from the base station, or if it is not permitted by the base station (for example, the permission information is negative), how to control the UE operation becomes a problem.

[0046] Therefore, the inventors of the present invention studied the UE operation after the report related to the activation / deactivation of the UE panel was performed, and conceived of the present embodiment.

[0047] Hereinafter, the embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. The wireless communication methods and methods involved in each embodiment may be applied individually or in combination. In addition, in the present disclosure, "A / B" may be replaced by "at least one of A and B". In addition, "notification" in the present disclosure may be replaced with "instruction", "setting", and "sending".

[0048] Below, the "panel" of the UE in the present disclosure can also be replaced by the "Reference Signal (RS)) port group", "Demodulation Reference Signal (DMRS)) port group", "Sounding Reference Signal (SRS)) port group", "RS resource group", "DMRS resource group", "SRS resource group", "beam group", "Transmission Configuration Indication (TCI) status group", "spatial relationship group", "SRS Resource Indicator (SRS Resource Indicator: SRI) group" or "antenna port group".

[0049] Activation in the present disclosure may also refer to turning on the power of the panel or making the panel active. The activation state may also refer to at least one of a state in which blind detection of a downlink control channel (Physical Downlink Control Channel (PDCCH)) can be performed in a set search space, a state in which a downlink shared channel (Physical Downlink Shared Channel (PDSCH)) scheduled by downlink control information (Downlink Control Information (DCI)) etc. can be received from the NW, and a state in which a UL data channel (e.g., Physical Uplink Shared Channel (PUSCH)) scheduled by DCI etc. can be received from the NW.

[0050] In addition, deactivation in the present disclosure may also refer to disconnecting the power supply of the panel or putting the panel into a deactivated state. The deactivated state may also refer to at least one of a state in which blind detection of PDCCH is not requested in a set search space, a state in which PDSCH scheduled by DCI or the like is not requested to be received from NW, and a state in which PUSCH scheduled by DCI or the like is not requested to be sent from NW.

[0051] In addition, the term "activate" in the present disclosure may also be replaced by activated, activated, updated or upgraded. The term "deactivate" in the present disclosure may also be replaced by deactivated, deactivated, deactivated or stopped.

[0052] The content of the permission information sent from the base station is positive, which means that the base station permits the panel requested by the UE to activate / deactivate. For example, when the UE requests the activation of panel #0, the information permitting the activation of panel #0 is called positive permission information.

[0053] On the other hand, the content of the permission information sent from the base station is negative, which means that the base station does not permit the panel requested by the UE to be activated / deactivated. For example, in the case of reporting the subject matter of the UE requesting the activation of panel #0, the information of not permitting the activation of the panel #0 is called negative permission information.

[0054] In the following description, the case of applying the reporting operation B is cited as an example for explanation, but the present embodiment is not limited thereto. The present embodiment can also be applied to UE operations after the UE performs an A / D report in the reporting operation A (for example, retransmission of the A / D report, etc.).

[0055] (Wireless Communication Method)

[0056] When the UE controls the A / D operation based on the permission information (e.g., confirmation information) sent from the base station based on the A / D report relative to the panel of the terminal (UE panel), the UE operation in at least one of the following situations 1 or 2 is specified.

[0057] <Scenario 1>

[0058] After the UE sends (or triggers) the A / D report, the UE may also assume that the permission information sent from the base station is either positive confirmation or negative. The base station may also send the permission information to the UE regardless of whether it agrees or disagrees (or whether it agrees or not) with respect to the A / D request of the panel reported from the UE.

[0059] [Scenario 1-1]

[0060] The UE operation in the case where the UE does not receive the grant information from the base station may also be specified.

[0061] [Scenario 1-2-1]

[0062] The UE operation when the UE receives permission information of negative content (hereinafter also referred to as negative permission information) from the base station may be specified.

[0063] [Scenario 1-2-2]

[0064] Alternatively, it is possible to specify the UE operation when the UE receives negative permission information from the base station and the base station notifies the UE which panel the UE should activate (or deactivate). In this case, the permission information may not be one bit for notifying positive / activation, but may include multiple bits for the UE to notify the panel ID that should be activated (or deactivated).

[0065] [Scenario 1-3]

[0066] The UE operation when the UE receives permission information of positive content (hereinafter also referred to as positive permission information) from the base station may be specified.

[0067] <Scenario 2>

[0068] After the UE sends (or triggers) the A / D report, the UE may also assume that the permission information sent from the base station is only positive confirmation. The base station may also control the UE to send the permission information to the UE if it agrees with the request of the panel A / D reported from the UE, and not to send the permission information to the UE if it disagrees.

[0069] [Scenario 2-1]

[0070] The UE operation in the case where the UE does not receive the grant information from the base station may also be specified.

[0071] [Scenario 2-2]

[0072] It is also possible to specify the UE operation when the UE receives permission information (here, affirmative permission information) from the base station.

[0073] <Number of panels reported by A / D>

[0074] The UE may also report the A / D for a specific panel (e.g., one panel) in each A / D report. In this case, the base station may also send permission information for the A / D report for the specific panel from the UE to the UE (option A). Option A may also specify at least one UE operation of scenario 1 and scenario 2.

[0075] The UE may also report the A / D for multiple panels in each A / D report. In this case, the base station may also send permission information for the A / D reports from multiple panels from the UE to the UE (option B). Option B may also specify at least one UE operation of scenario 1 and scenario 2.

[0076] Option B may also specify a UE operation in a case where permission information of multiple panels is sent separately (e.g., case A). Alternatively, option B may specify a UE operation in a case where permission information of multiple panels is sent jointly (jointly) and different contents (e.g., affirmative / activated) indications are supported for different panels (e.g., case B).

[0077] An example of UE operation that can be applied to each scenario is described below. In the following description, an example of UE operation corresponding to scenario 1-1 or scenario 2-1 is described in a first manner. In addition, an example of UE operation corresponding to scenario 1-2-1 or scenario 1-2-2 is described in a second manner. In addition, an example of UE operation corresponding to scenario 1-3 or scenario 2-2 is described in a third manner. In addition, an example of UE operation corresponding to scenario A or scenario B in option B is described in a fourth manner.

[0078] (First method)

[0079] In the first embodiment, the operation of the UE when the UE that has transmitted (or triggered) the A / D report does not receive permission information from the base station is described.

[0080] Alternatively, after the UE sends the A / D report, if no permission information is received from the base station within a specific time duration, the UE sends (or triggers) the A / D report again (see Figure 3 ). In other words, the UE may also be controlled to resend the A / D report when it is unable to receive the authorization information.

[0081] The specific time period may also be specified by a retransmission timer. The retransmission timer may also be referred to as a retransmission control timer, a retransmission timer, a reTx timer, a reTx-timer, or a first timer. The retransmission timer may also be defined by a specification, or may be notified from the base station to the UE by higher layer signaling.

[0082] The retransmission timer may also be started (or restarted) when the UE sends (or is triggered) an A / D report. The UE may also send (or is triggered) an A / D report and start a retransmission timer, and retransmit the A / D report of the panel if no permission information is received from the base station during the retransmission timer.

[0083] In addition, when the UE cannot receive permission information from the base station within the retransmission timer period, the UE may control to retransmit the A / D report of the panel when a specific benchmark (or a specific standard) is met. Figure 3 , the following situation is shown: the UE starts (or restarts) a retransmission timer simultaneously with the transmission of an A / D report of a specific panel (here, panel #0), and retransmits the A / D report of panel #0 when the retransmission timer expires and a specific benchmark is met. In other words, the retransmission of the A / D report can also be controlled based on the retransmission timer and a specific benchmark.

[0084] A specific benchmark may be, for example, whether the value of the received power (e.g., RSRP) of the reference signal or beam received using the panel is below a specific value. For example, the benchmark for activation / deactivation may also be determined based on the measurement results of the CSI-RS, the measurement results of the synchronization signal block, and the performance of the PDCCH / PDSCH. The performance may also be a block error rate (BLER). The BLER may also be a hypothesis BLER used in beam failure detection. In addition, the hypothesis BLER may also be replaced by SINR.

[0085] In this way, even when the permission information cannot be received from the base station, the A / D report of the panel is retransmitted, thereby requesting the permission information from the base station again, thereby enabling the A / D of the panel in the UE to be appropriately performed.

[0086] (Second method)

[0087] In the second example, the operation of the UE when the UE that has transmitted (or triggered) the A / D report receives negative permission information from the base station will be described.

[0088] The UE may also send (or trigger) the A / D report again after a specific period of time if it receives negative permission information with respect to the A / D report after sending the A / D report (see Figure 4A , B). In other words, the UE may also be controlled to resend the A / D report upon receiving negative grant information.

[0089] A retransmission timer (option 2-1) can also be used for a specific period of time (see Figure 4A ), you can also use a timer different from the retransmission timer (option 2-2) (refer to Figure 4B ).

[0090] <Option 2-1>

[0091] The UE may also start (or restart) a retransmission timer when receiving negative permission information for an A / D report of a specific panel (here, panel #0), and resend (or trigger) an A / D report after the retransmission timer period has elapsed (or after the retransmission timer expires) (see Figure 4A ). In other words, the transmission of the A / D report of the same panel (here, panel #0) may be restricted during the period when the retransmission timer started based on the reception of the negative permission information is running.

[0092] The retransmission timer in operation may be stopped / canceled and restarted, or a retransmission timer different from the retransmission timer in operation may be started.

[0093] When option 2-1 is applied, the UE starts (or restarts) a retransmission timer simultaneously with the transmission of the A / D report of a specific panel (here, panel #0). The retransmission of the A / D report of panel #0 is controlled when the retransmission timer started based on the transmission of the A / D report expires and a specific criterion is met.

[0094] On the other hand, when the UE receives negative permission information before the retransmission timer started based on the transmission of the A / D report expires, the UE starts (or restarts) the retransmission timer together with the reception of the negative permission information. When the retransmission timer started based on the reception of the negative permission information expires and a specific criterion is satisfied, the retransmission of the A / D report of control panel #0 is controlled.

[0095] Thus, in Option 2-1, the retransmission timer can also be used in the retransmission control of the A / D report when the permission information for the A / D report cannot be received and the retransmission control of the A / D report when the negative permission information for the A / D report is received. Thus, the increase in the number of timers set in the UE can be suppressed.

[0096] <Option 2-2>

[0097] The UE may also start (or restart) another timer different from the retransmission timer when receiving negative permission information for the A / D report of a specific panel (here, panel #0), and send (or trigger) the A / D report again after the other timer period has elapsed (or after the other timer expires) (see Figure 4B ). In other words, the sending of the A / D report of the same panel (here, panel #0) may be restricted during the period when other timers started based on the reception of the negative permission information are running.

[0098] Other timers different from the retransmission timer may also be called an inhibit timer, a retransmission inhibit timer, a prohibit timer or a second timer. The inhibit timer may also be defined by a specification, or may be notified from the base station to the UE by higher layer signaling.

[0099] The inhibit timer may also be started (or restarted) when the UE receives negative grant information. The UE may also start the inhibit timer together with the reception of negative grant information and retransmit the A / D report of the panel after the inhibit timer has elapsed.

[0100] When option 2-2 is applied, the UE starts (or restarts) a retransmission timer simultaneously with the transmission of the A / D report of a specific panel (here, panel #0). The UE may also control the retransmission of the A / D report of panel #0 when the retransmission timer started based on the transmission of the A / D report expires and a specific criterion is met.

[0101] On the other hand, when the UE receives negative permission information before the retransmission timer started based on the transmission of the A / D report expires, the UE starts (or restarts) the prohibition timer together with the reception of the negative permission information. The retransmission of the A / D report of panel #0 may be controlled when the prohibition timer started based on the reception of the negative permission information expires and a specific criterion is satisfied.

[0102] Furthermore, the setting / application of the retransmission timer and the inhibition timer may be independent or linked.

[0103] For example, the UE may be controlled to stop the retransmission timer in operation when receiving negative permission information (or when the prohibition timer is started) (option 2-2-1).

[0104] Alternatively, the UE may also control to restart the retransmission timer in operation when receiving negative permission information (or when starting the prohibition timer) (option 2-2-2). The retransmission timer in operation may also be stopped / canceled and restarted, or a retransmission timer different from the retransmission timer in operation may be started.

[0105] In this case, when at least one of the retransmission timer and the prohibition timer is running, the UE may also be controlled not to send (or trigger) the A / D report of the same panel as the panel for which the report has been completed (and the permission information has not been received). In other words, it is also possible to have a structure in which the retransmission of the A / D report is restricted when at least one of the retransmission timer and the prohibition timer is running, or in other words, to have a structure in which the retransmission of the A / D report is allowed when both the retransmission timer and the prohibition timer expire.

[0106] Alternatively, when the retransmission timer is running and the inhibition timer has expired, the same panel as the panel that has completed the report (and has not received the permission information) may be allowed to retransmit the A / D report.

[0107] Alternatively, the UE may control the retransmission timer in operation to continue as is when receiving negative permission information (or when starting the prohibition timer) (option 2-2-3).

[0108] In this case, when at least one of the retransmission timer and the prohibition timer is running, the UE may also be controlled not to send (or trigger) the A / D report of the same panel as the panel for which the report has been completed (and the permission information has not been received). In other words, it is also possible to have a structure in which the retransmission of the A / D report is restricted when at least one of the retransmission timer and the prohibition timer is running, or in other words, to have a structure in which the retransmission of the A / D report is allowed when both the retransmission timer and the prohibition timer expire.

[0109] Alternatively, when the retransmission timer is running and the inhibition timer has expired, the same panel as the panel that has completed the report (and has not received the permission information) may be allowed to retransmit the A / D report.

[0110] (Third Method)

[0111] In the third example, the operation of the UE when the UE that has transmitted (or triggered) the A / D report receives positive permission information from the base station is described.

[0112] The UE may also control, after sending the A / D report, if positive permission information is received for the A / D report within a specific time period, to stop the timer if there is a timer used for retransmission control of the A / D report (option 3-1). Alternatively, the UE may control a specific UE operation based on the timer used for retransmission control of the A / D report (option 3-2). Alternatively, the UE may control a specific UE operation based on multiple timers used for retransmission control of the A / D report (option 3-3).

[0113] <Option 3-1>

[0114] When receiving positive permission information for the A / D report of a specific panel (here, panel #0), the UE may stop the retransmission timer (see Figure 5A ). Thereafter, the UE may also control activation / deactivation of panel #0. In addition, a timer (for example, a prohibition timer) based on reception of positive permission information may not be set.

[0115] <Option 3-2>

[0116] The UE may also start (or restart) a retransmission timer when receiving positive permission information for the A / D report of a specific panel (here, panel #0), and control a new A / D reporting operation based on the retransmission timer (see Figure 5B ).

[0117] For example, while a retransmission timer started based on reception of affirmative permission information is running, sending (or triggering) of a new A / D report for the same panel (here, panel #0) as the panel associated with the affirmative permission information may be permitted (option 3-2-1).

[0118] Alternatively, while a retransmission timer started based on reception of affirmative permission information is running, the sending (or triggering) of a new A / D report to the same panel as the panel associated with the affirmative permission information (here, panel #0) may be restricted (option 3-2-2).

[0119] For example, it is assumed that the UE reports the intention to request the activation of panel #0 and receives positive permission information from the base station. In this case, the UE can also control not to report the intention to request the deactivation of panel #0 during a specific period (for example, when the retransmission timer is running) after receiving the positive permission information. In this way, it is possible to suppress the frequent transmission of panel status change request reports from the UE.

[0120] <Option 3-3>

[0121] The UE may also start (or restart) another timer different from the retransmission timer when receiving positive permission information for the A / D report of a specific panel (here, panel #0), and control a new A / D reporting operation based on at least one of the retransmission timer and the other timer (see Figure 6 ).

[0122] The other timer different from the retransmission timer may be the prohibition timer described in the second embodiment. The prohibition timer may also be started (or restarted) when the UE receives the positive permission information. The UE may also start the prohibition timer together with the reception of the positive permission information, and when the prohibition timer is running, the transmission (or triggering) of a new A / D report for the same panel (here, panel #0) as the panel associated with the positive permission information is restricted.

[0123] Furthermore, the setting / application of the retransmission timer and the inhibition timer may be independent or linked.

[0124] For example, when receiving positive permission information (or when starting a prohibition timer), the UE may stop the retransmission timer in operation (option 3-3-1).

[0125] Alternatively, the UE may control to restart the retransmission timer in operation when positive permission information is received (or when the prohibition timer is started) (option 3-3-2).

[0126] In this case, when at least one of the retransmission timer and the prohibition timer is running, the UE controls not to send (or trigger) a new A / D report for the same panel as the panel that has completed the report (and the positive permission information has been received). In other words, it can also be configured so that when at least one of the retransmission timer and the prohibition timer is running, the sending or triggering of a new A / D report for the panel that has received the positive permission information is restricted. In other words, it can also be configured so that when both the retransmission timer and the prohibition timer expire, the sending or triggering of a new A / D report for the panel that has received the positive permission information is allowed.

[0127] Alternatively, when the retransmission timer is running and the inhibition timer has expired, the panel that has received the affirmative permission information may be configured to be permitted to transmit or trigger a new A / D report.

[0128] Alternatively, the UE may control the retransmission timer in operation to continue as is when positive permission information is received (or when a prohibition timer is started) (option 3-3-2).

[0129] In this case, when at least one of the retransmission timer and the prohibition timer is running, the UE may also be controlled not to send (or trigger) a new A / D report for the same panel as the panel that has completed the report (and the positive permission information has been received). In other words, when at least one of the retransmission timer and the prohibition timer is running, the UE may be configured to restrict the sending or triggering of a new A / D report for the panel that has received the positive permission information. In other words, when both the retransmission timer and the prohibition timer expire, the sending or triggering of a new A / D report for the panel that has received the positive permission information may be allowed.

[0130] Alternatively, the configuration may be such that, when the retransmission timer is running and the inhibition timer has expired, the transmission or triggering of a new A / D report is permitted for the panel that has received the affirmative permission information.

[0131] (Fourth Method)

[0132] In the fourth embodiment, the operation of the UE when the UE sends (or triggers) A / D reports of multiple panels is described.

[0133] The base station may also transmit the permission information corresponding to the A / D reports of the multiple panels to the UE when receiving the A / D reports of the multiple panels transmitted from the UE.

[0134] <Scenario A>

[0135] It is assumed that a timer associated with retransmission of the A / D report is set in a case where permission information for a plurality of panels is transmitted separately (for example, case A). In such a case, the timer may be defined or counted separately for each panel.

[0136] For example, when permission information corresponding to the A / D report of each panel is transmitted, a retransmission timer / prohibition timer may be set for each panel. For example, a retransmission timer may be set based on the transmission timing of the A / D report of each panel. Alternatively, a retransmission timer / prohibition timer may be set based on the reception timing of the permission information of each panel.

[0137] When a retransmission timer / prohibition timer is set for each panel, at least one of starting, restarting, stopping, maintaining, and counting of the retransmission timer / prohibition timer may be controlled for each panel. The UE may also apply at least one of the first method to the third method to each panel and control the A / D reporting operation based on the timer set for each panel.

[0138] In this case, at least one of the first to third modes may be applied to each panel, so that even when the timer corresponding to the panel is stopped / started / running, it does not affect the timers of other panels.

[0139] Alternatively, at least one of the first to third modes may be applied to each panel, and when the timer corresponding to the panel is stopped / started / restarted, it may affect other panels. For example, the timer of another panel (or a specific timer) may be stopped / started / restarted by stopping / starting / restarting the timer of a certain panel.

[0140] <Scenario B>

[0141] The permission information for multiple panels is sent jointly, but it is assumed that in the case where different contents (e.g., affirmative / activated) are allowed to be indicated for different panels (e.g., case B), a timer associated with the retransmission of the A / D report is set. In such a case, the timer may be defined or counted separately for each report / each panel.

[0142] In the case where the UE cannot receive the permission information from the base station, the permission information for multiple panels is sent together, so the operation of the retransmission timer / prohibition timer (for example, at least one of starting, restarting, stopping, maintaining and counting) can also be controlled for each report. For example, the UE can also apply the first method to control the A / D report operation.

[0143] When the UE receives negative permission information from the base station, the operation of the retransmission timer / prohibition timer may be controlled for each panel (e.g., at least one of start, restart, stop, maintain, and count) with respect to each panel that receives the negative permission information. For example, the UE may also apply the second method to control the A / D reporting operation of each panel that receives the negative permission information.

[0144] When the UE receives positive permission information from the base station, the operation of the retransmission timer / prohibition timer may be controlled for each panel (e.g., at least one of start, restart, stop, maintain, and count) with respect to each panel that receives the positive permission information. For example, the UE may also apply the third method to control the A / D reporting operation of each panel that receives the positive permission information.

[0145] Furthermore, when the UE reports the panel status (activated / deactivated) for all panels in each report, at least one of the first to fourth aspects may be applied to a panel whose panel status change is reported among the panels reported.

[0146] (Wireless Communication System)

[0147] Hereinafter, a configuration of a wireless communication system according to an embodiment of the present disclosure will be described. In the wireless communication system, communication is performed using any one of the wireless communication methods according to the above-mentioned embodiments of the present disclosure or a combination thereof.

[0148] Figure 7 1 is a diagram showing an example of a schematic structure of a wireless communication system involved in one embodiment. The wireless communication system 1 may also be a system that implements communication using Long Term Evolution (LTE) standardized by the Third Generation Partnership Project (3GPP), the fifth generation mobile communication system New Radio (5G NR), and the like.

[0149] In addition, the wireless communication system 1 can also support dual connectivity (Multi-RAT Dual Connectivity (MR-DC)) between multiple radio access technologies (Radio Access Technology (RAT)). MR-DC can also include dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA))) and NR (E-UTRA-NR Dual Connectivity (E-UTRA-NR Dual Connectivity (EN-DC))), dual connectivity between NR and LTE (NR-E-UTRA Dual Connectivity (NR-E-UTRA Dual Connectivity (NE-DC))), etc.

[0150] In EN-DC, the base station (eNB) of LTE (E-UTRA) is the master node (Master Node (MN)), and the base station (gNB) of NR is the secondary node (Secondary Node (SN)). In NE-DC, the base station (gNB) of NR is the MN, and the base station (eNB) of LTE (E-UTRA) is the SN.

[0151] The wireless communication system 1 can also support dual connectivity between multiple base stations within the same RAT (for example, dual connectivity (NR-NR Dual Connectivity (NN-DC)) where both MN and SN are NR base stations (gNB)).

[0152] The wireless communication system 1 may also include: a base station 11 that forms a macro cell C1 with a relatively wide coverage, and a base station 12 (12a-12c) that is configured in the macro cell C1 and forms a small cell C2 that is narrower than the macro cell C1. The user terminal 20 may also be located in at least one cell. The configuration and number of each cell and the user terminal 20 are not limited to the method shown in the figure. Hereinafter, when the base stations 11 and 12 are not distinguished, they are collectively referred to as the base station 10.

[0153] The user terminal 20 may be connected to at least one of the plurality of base stations 10. The user terminal 20 may use at least one of carrier aggregation (CA) using a plurality of component carriers (CC) and dual connectivity (DC).

[0154] Each CC may also be included in at least one of the first frequency band (Frequency Range 1 (FR1)) and the second frequency band (Frequency Range 2 (FR2)). The macro cell C1 may also be included in FR1, and the small cell C2 may also be included in FR2. For example, FR1 may be a frequency band below 6 GHz (lower than 6 GHz (sub-6 GHz)), and FR2 may be a frequency band higher than 24 GHz (higher than 24 GHz (above-24 GHz)). In addition, the frequency bands and definitions of FR1 and FR2 are not limited to this. For example, FR1 may also correspond to a frequency band higher than FR2.

[0155] Furthermore, the user terminal 20 may perform communication in each CC using at least one of time division duplex (TDD) and frequency division duplex (FDD).

[0156] Multiple base stations 10 may also be connected via wired (e.g., optical fiber based on Common Public Radio Interface (CPRI)), X2 interface, etc.) or wireless (e.g., NR communication). For example, when NR communication between base stations 11 and 12 is used as a backhaul, the base station 11 equivalent to the upper station may also be referred to as an Integrated Access Backhaul (IAB) donor, and the base station 12 equivalent to a relay station may also be referred to as an IAB node.

[0157] The base station 10 may also be connected to the core network 30 via other base stations 10 or directly. The core network 30 may also include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), a Next Generation Core (NGC), and the like.

[0158] The user terminal 20 may also be a terminal that supports at least one of communication modes such as LTE, LTE-A, and 5G.

[0159] In the wireless communication system 1, a wireless access method based on orthogonal frequency division multiplexing (OFDM) may be used. For example, in at least one of the downlink (DL) and the uplink (UL), cyclic prefix OFDM (CP-OFDM), discrete Fourier transform spread OFDM (DFT-s-OFDM), orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA), etc. may be used.

[0160] The radio access scheme may also be referred to as a waveform. In addition, in the wireless communication system 1, other radio access schemes (for example, other single-carrier transmission schemes, other multi-carrier transmission schemes) may be applied to the UL and DL radio access schemes.

[0161] In the wireless communication system 1, as downlink channels, a downlink shared channel (Physical Downlink Shared Channel (PDSCH)) shared by each user terminal 20, a broadcast channel (Physical Broadcast Channel (PBCH))), a downlink control channel (Physical Downlink Control Channel (PDCCH)) and the like may be used.

[0162] In addition, in the wireless communication system 1, as uplink channels, an uplink shared channel (Physical Uplink Shared Channel (PUSCH)) shared by each user terminal 20), an uplink control channel (Physical Uplink Control Channel (PUCCH))), a random access channel (Physical Random Access Channel (PRACH)) and the like may be used.

[0163] The PDSCH is used to transmit user data, high-layer control information, system information block (SIB), etc. The PUSCH is also used to transmit user data, high-layer control information, etc. In addition, the PBCH is also used to transmit the master information block (MIB).

[0164] The lower layer control information may also be transmitted via the PDCCH. The lower layer control information may include, for example, downlink control information (Downlink Control Information (DCI)) including scheduling information of at least one of the PDSCH and the PUSCH.

[0165] In addition, the DCI that schedules the PDSCH may also be referred to as DL allocation, DL DCI, etc., and the DCI that schedules the PUSCH may also be referred to as UL grant, UL DCI, etc. In addition, the PDSCH may also be replaced by DL data, and the PUSCH may also be replaced by UL data.

[0166] In the detection of PDCCH, the control resource set (CORESET) and the search space can also be used. CORESET corresponds to the resources for searching DCI. The search space corresponds to the search area and search method of PDCCH candidates. A CORESET can also be associated with one or more search spaces. The UE can also monitor the CORESET associated with a search space based on the search space setting.

[0167] A search space may also correspond to a PDCCH candidate corresponding to one or more aggregation levels. One or more search spaces may also be referred to as a search space set. In addition, the "search space", "search space set", "search space setting", "search space set setting", "CORESET", "CORESET setting" and the like in the present disclosure may also be interchangeable.

[0168] Uplink control information (uplink control information (UCI)) including at least one of channel state information (CSI), delivery confirmation information (e.g., may also be called hybrid automatic repeat request confirmation (HARQ-ACK), ACK / NACK, etc.), and scheduling request (Scheduling Request (SR)) may also be transmitted through PUCCH. Random access preamble code for establishing connection with a cell may also be transmitted through PRACH.

[0169] In the present disclosure, downlink, uplink, etc. may be expressed without "link". In addition, various channels may be expressed without "Physical" at the beginning.

[0170] In the wireless communication system 1, a synchronization signal (Synchronization Signal (SS)), a downlink reference signal (Downlink Reference Signal (DL-RS)), etc. may also be transmitted. In the wireless communication system 1, as DL-RS, a cell-specific reference signal (Cell-specific Reference Signal (CRS)), a channel state information reference signal (Channel State Information Reference Signal (CSI-RS)), a demodulation reference signal (DeModulation Reference Signal (DMRS)), a positioning reference signal (Positioning Reference Signal (PRS)), a phase tracking reference signal (Phase Tracking Reference Signal (PTRS)), etc. may also be transmitted.

[0171] The synchronization signal may be, for example, at least one of a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). A signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may also be referred to as SS / PBCH block, SS block (SSB), etc. In addition, SS, SSB, etc. may also be referred to as reference signals.

[0172] In addition, in the wireless communication system 1, as an uplink reference signal (Uplink Reference Signal (UL-RS)), a measurement reference signal (Sounding Reference Signal (SRS)), a demodulation reference signal (DMRS), etc. can also be transmitted. In addition, DMRS can also be called a user terminal specific reference signal (UE-specific Reference Signal).

[0173] (Base Station)

[0174] Figure 81 is a diagram showing an example of a structure of a base station involved in one embodiment. The base station 10 includes a control unit 110, a transmitting and receiving unit 120, a transmitting and receiving antenna 130, and a transmission path interface (transmission line interface) 140. In addition, the control unit 110, the transmitting and receiving unit 120, the transmitting and receiving antenna 130, and the transmission path interface 140 may each be provided with more than one.

[0175] In addition, in this example, the functional blocks of the characteristic parts of this embodiment are mainly shown, and it is also assumed that the base station 10 also has other functional blocks required for wireless communication. Part of the processing of each unit described below may be omitted.

[0176] The control unit 110 controls the entire base station 10. The control unit 110 can be composed of a controller, a control circuit, and the like that are described based on the common knowledge in the technical field to which the present disclosure relates.

[0177] The control unit 110 may also control signal generation, scheduling (e.g., resource allocation, mapping), etc. The control unit 110 may also control transmission and reception, measurement, etc. using the transmission and reception unit 120, the transmission and reception antenna 130, and the transmission path interface 140. The control unit 110 may also generate data, control information, sequences, etc. to be sent as signals, and forward them to the transmission and reception unit 120. The control unit 110 may also perform call processing (setting, release, etc.) of communication channels, state management of the base station 10, management of wireless resources, etc.

[0178] The transmitting and receiving unit 120 may also include a baseband unit 121, a radio frequency (RF) unit 122, and a measuring unit 123. The baseband unit 121 may also include a transmitting processing unit 1211 and a receiving processing unit 1212. The transmitting and receiving unit 120 may be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter (phase shifter), a measuring circuit, a transmitting and receiving circuit, etc., which are described based on the public knowledge in the technical field involved in the present disclosure.

[0179] The transmitting and receiving unit 120 may be configured as an integrated transmitting and receiving unit, or may be configured by a transmitting unit and a receiving unit. The transmitting unit may also be configured by a transmitting processing unit 1211 and an RF unit 122. The receiving unit may also be configured by a receiving processing unit 1212, an RF unit 122, and a measuring unit 123.

[0180] The transmitting / receiving antenna 130 can be constituted by an antenna described based on the common knowledge in the technical field involved in the present disclosure, such as an array antenna.

[0181] The transmitting and receiving unit 120 may also transmit the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transmitting and receiving unit 120 may also receive the above-mentioned uplink channel, uplink reference signal, etc.

[0182] The transmitting and receiving unit 120 may also use digital beamforming (eg, precoding), analog beamforming (eg, phase rotation), etc. to form at least one of a transmitting beam and a receiving beam.

[0183] The sending and receiving unit 120 (sending processing unit 1211), for example, may also perform Packet Data Convergence Protocol (PDCP) layer processing, Radio Link Control (RLC) layer processing (for example, RLC retransmission control), Medium Access Control (MAC) layer processing (for example, HARQ retransmission control), etc. on the data, control information, etc. obtained from the control unit 110, to generate a bit string to be sent.

[0184] The transmitting and receiving unit 120 (transmitting processing unit 1211) can also perform channel coding (which may also include error correction coding), modulation, mapping, filter processing, discrete Fourier transform (DFT) processing (as needed), inverse fast Fourier transform (IFFT) processing), precoding, digital-to-analog conversion and other transmission processing on the bit string to be sent, and output a baseband signal.

[0185] The transmitting and receiving unit 120 (RF unit 122 ) may perform modulation, filter processing, amplification, etc. on the baseband signal to a radio frequency band, and transmit the signal in the radio frequency band via the transmitting and receiving antenna 130 .

[0186] On the other hand, the transmitting and receiving unit 120 (RF unit 122 ) may perform amplification, filter processing, demodulation into a baseband signal, etc. on the signal in the radio frequency band received by the transmitting and receiving antenna 130 .

[0187] The sending and receiving unit 120 (receiving processing unit 1212) can also apply analog-to-digital conversion, fast Fourier transform (FFT) processing, inverse discrete Fourier transform (IDFT) processing (as needed), filter processing, demapping, demodulation, decoding (which may also include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal to obtain user data, etc.

[0188] The transmitting and receiving unit 120 (measuring unit 123) may also implement measurements related to the received signal. For example, the measuring unit 123 may also perform radio resource management (Radio Resource Management (RRM)) measurements, channel state information (CSI) measurements, etc. based on the received signal. The measuring unit 123 may also measure received power (e.g., reference signal received power (Reference Signal Received Power (RSRP))), received quality (e.g., reference signal received quality (Reference Signal Received Quality (RSRQ)), signal to interference plus noise ratio (Signal to Interference plus Noise Ratio (SINR)), signal to noise ratio (Signal to Noise Ratio (SNR))), signal strength (e.g., received signal strength indicator (ReceivedSignal Strength Indicator (RSSI))), propagation path information (e.g., CSI), etc. The measurement results may also be output to the control unit 110.

[0189] The transmission path interface 140 can also send and receive signals (return signaling) between the devices included in the core network 30, other base stations 10, etc., and can also obtain and transmit user data (user plane data) and control plane data for the user terminal 20.

[0190] In addition, the transmission unit and the reception unit of the base station 10 in the present disclosure may also be constituted by at least one of the transmission and reception unit 120 , the transmission and reception antenna 130 , and the transmission path interface 140 .

[0191] The transceiver unit 120 may also receive a report related to activation or deactivation of a panel. The transceiver unit 120 may also send permission information for the report.

[0192] Control unit 110 may control reception of a report in the terminal that is controlled to be retransmitted based on at least one of the presence or absence of reception permission information and the content of the permission information.

[0193] (User Terminal)

[0194] Fig. 9 2 is a diagram showing an example of a configuration of a user terminal according to an embodiment. The user terminal 20 includes a control unit 210, a transmission / reception unit 220, and a transmission / reception antenna 230. In addition, the control unit 210, the transmission / reception unit 220, and the transmission / reception antenna 230 may each be provided in one or more pieces.

[0195] In addition, in this example, the functional blocks of the characteristic parts in this embodiment are mainly shown, and it is also assumed that the user terminal 20 also has other functional blocks required for wireless communication. Part of the processing of each unit described below may be omitted.

[0196] The control unit 210 controls the entire user terminal 20. The control unit 210 can be composed of a controller, a control circuit, and the like that are described based on the common knowledge in the technical field to which the present disclosure relates.

[0197] The control unit 210 may also control signal generation, mapping, etc. The control unit 210 may also control transmission and reception, measurement, etc. using the transmission and reception unit 220 and the transmission and reception antenna 230. The control unit 210 may also generate data, control information, sequences, etc. to be transmitted as signals, and forward them to the transmission and reception unit 220.

[0198] The transmitting and receiving unit 220 may also include a baseband unit 221, an RF unit 222, and a measuring unit 223. The baseband unit 221 may also include a transmitting processing unit 2211 and a receiving processing unit 2212. The transmitting and receiving unit 220 may be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measuring circuit, a transmitting and receiving circuit, etc., which are described based on the public knowledge in the technical field involved in the present disclosure.

[0199] The transmitting and receiving unit 220 may be configured as an integrated transmitting and receiving unit, or may be configured by a transmitting unit and a receiving unit. The transmitting unit may also be configured by a transmitting processing unit 2211 and an RF unit 222. The receiving unit may also be configured by a receiving processing unit 2212, an RF unit 222, and a measuring unit 223.

[0200] The transmitting / receiving antenna 230 can be constituted by an antenna described based on the common knowledge in the technical field involved in the present disclosure, such as an array antenna.

[0201] The transmitting and receiving unit 220 may also receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transmitting and receiving unit 220 may also transmit the above-mentioned uplink channel, uplink reference signal, etc.

[0202] The transmitting and receiving unit 220 may also use digital beamforming (eg, precoding), analog beamforming (eg, phase rotation), etc. to form at least one of a transmitting beam and a receiving beam.

[0203] The sending and receiving unit 220 (sending processing unit 2211), for example, can also perform PDCP layer processing, RLC layer processing (for example, RLC retransmission control), MAC layer processing (for example, HARQ retransmission control), etc. on the data, control information, etc. obtained from the control unit 210 to generate a bit string to be sent.

[0204] The transmitting and receiving unit 220 (transmitting processing unit 2211) can also perform channel coding (which may also include error correction coding), modulation, mapping, filter processing, DFT processing (as needed), IFFT processing, precoding, digital-to-analog conversion and other transmission processing on the bit string to be sent, and output a baseband signal.

[0205] In addition, whether to apply DFT processing may also be based on the setting of transform precoding. For a certain channel (e.g., PUSCH), when transform precoding is activated (enabled), the transmitting and receiving unit 220 (transmitting processing unit 2211) may also perform DFT processing as the above-mentioned transmission processing in order to transmit the channel using a DFT-s-OFDM waveform. Otherwise, the transmitting and receiving unit 220 (transmitting processing unit 2211) may also perform DFT processing as the above-mentioned transmission processing without performing DFT processing.

[0206] The transmitting and receiving unit 220 (RF unit 222 ) may also perform modulation, filter processing, amplification, etc. on the baseband signal to a radio frequency band, and transmit the signal in the radio frequency band via the transmitting and receiving antenna 230 .

[0207] On the other hand, the transmitting and receiving unit 220 (RF unit 222 ) may perform amplification, filter processing, demodulation to a baseband signal, etc. on the signal in the radio frequency band received by the transmitting and receiving antenna 230 .

[0208] The sending and receiving unit 220 (receiving processing unit 2212) can also apply analog-to-digital conversion, FFT processing, IDFT processing (as needed), filter processing, demapping, demodulation, decoding (which may also include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal to obtain user data, etc.

[0209] The transmitting and receiving unit 220 (measuring unit 223) may also perform measurements related to the received signal. For example, the measuring unit 223 may also perform RRM measurements, CSI measurements, etc. based on the received signal. The measuring unit 223 may also measure received power (e.g., RSRP), received quality (e.g., RSRQ, SINR, SNR), signal strength (e.g., RSSI), propagation path information (e.g., CSI), etc. The measurement results may also be output to the control unit 210.

[0210] In addition, the transmitting unit and the receiving unit of the user terminal 20 in the present disclosure may also be constituted by at least one of the transmitting and receiving unit 220 and the transmitting and receiving antenna 230 .

[0211] The transceiver unit 220 may also send a report related to activation or deactivation of a panel.

[0212] The control unit 210 may also control at least one of retransmission of the report and activation or deactivation of the panel based on at least one of whether permission information for the report is received and the content of the permission information.

[0213] The control unit 210 may also control the retransmission of the report when the permission information cannot be received before the expiration of the first timer started based on the transmission of the report. In addition, the control unit 210 may also control the non-transmission of a report having the same content as the report to the panel during the operation of the first timer or the second timer started based on the reception of the permission information when the content of the permission information for the report is negative. The control unit 210 may also control the stopping of the first timer started based on the transmission of the report when the content of the permission information for the report is positive.

[0214] (Hardware Structure)

[0215] In addition, the block diagram used in the description of the above-mentioned embodiment shows a block of a functional unit. These functional blocks (structural units) are implemented by any combination of at least one of hardware and software. In addition, the implementation method of each functional block is not particularly limited. That is, each functional block can be implemented by a device that is physically or logically combined, or two or more devices that are physically or logically separated can be directly or indirectly (for example, by wired, wireless, etc.) connected and implemented by these multiple devices. The functional block can also be implemented by combining the above-mentioned one device or the above-mentioned multiple devices with software.

[0216] Here, the functions include judging, deciding, determining, calculating, calculating, processing, deriving, investigating, searching, confirming, receiving, sending, outputting, accessing, solving, selecting, selecting, establishing, comparing, assuming, expecting, regarding, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but are not limited to these. For example, a functional block (structural unit) that implements a sending function may also be referred to as a transmitting unit, a transmitter, etc. Any one of them is as described above, and the implementation method is not particularly limited.

[0217] For example, a base station, a user terminal, etc. in one embodiment of the present disclosure may also function as a computer that performs processing of the wireless communication method of the present disclosure. Fig.10 1001, memory 1002, storage 1003, communication device 1004, input device 1005, output device 1006, bus 1007, etc.

[0218] In addition, in the present disclosure, the terms such as device, circuit, equipment, section, unit, etc. are interchangeable. The hardware structure of the base station 10 and the user terminal 20 may be configured to include one or more of the devices shown in the figure, or may be configured to exclude some of the devices.

[0219] For example, only one processor 1001 is shown, but there may be multiple processors. In addition, the processing may be performed by one processor, or may be performed by two or more processors simultaneously, sequentially, or in other ways. In addition, the processor 1001 may also be implemented by one or more chips.

[0220] The functions of the base station 10 and the user terminal 20 are realized, for example, by reading specific software (program) into hardware such as the processor 1001 and the memory 1002, so that the processor 1001 performs calculations and controls communication via the communication device 1004, or controls at least one of the reading and writing of data in the memory 1002 and the storage 1003.

[0221] The processor 1001 controls the entire computer by, for example, operating an operating system. The processor 1001 may also be composed of a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, a register, etc. For example, at least a part of the above-mentioned control unit 110 (210), the sending and receiving unit 120 (220), etc. may also be implemented by the processor 1001.

[0222] In addition, the processor 1001 reads the program (program code), software module, data, etc. from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and performs various processes based on them. As a program, a program that enables a computer to perform at least a part of the operations described in the above-mentioned embodiments can be used. For example, the control unit 110 (210) can also be implemented by a control program stored in the memory 1002 and operated in the processor 1001, and the same can be implemented for other functional blocks.

[0223] The memory 1002 may also be a computer-readable recording medium, for example, composed of at least one of a read-only memory (ROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), a random access memory (RAM), or other appropriate storage media. The memory 1002 may also be referred to as a register, a cache, a main memory (main storage device), etc. The memory 1002 can store executable programs (program codes), software modules, etc. for implementing the wireless communication method involved in one embodiment of the present disclosure.

[0224] The storage 1003 may also be a computer-readable recording medium, such as a flexible disk, a floppy disk, an optical disk (such as a compact disk (Compact Disc ROM (CD-ROM)), a digital versatile disk, a Blu-ray (registered trademark) disk), a removable disk, a hard disk drive, a smart card, a flash memory device (such as a card, a stick, a key drive), a magnetic stripe, a database, a server, or at least one of other appropriate storage media. The storage 1003 may also be referred to as an auxiliary storage device.

[0225] The communication device 1004 is hardware (transmitting and receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also called a network device, a network controller, a network card, a communication module, etc. In order to realize at least one of frequency division duplex (Frequency Division Duplex (FDD)) and time division duplex (Time Division Duplex (TDD)), the communication device 1004 can also be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. For example, the above-mentioned transmitting and receiving unit 120 (220), the transmitting and receiving antenna 130 (230), etc. can also be realized by the communication device 1004. The transmitting and receiving unit 120 (220) can also be realized by physically or logically separating the transmitting unit 120a (220a) and the receiving unit 120b (220b).

[0226] The input device 1005 is an input device that receives input from the outside (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.). The output device 1006 is an output device that implements output to the outside (e.g., a display, a speaker, a light emitting diode (LED) lamp, etc.). In addition, the input device 1005 and the output device 1006 may also be an integrated structure (e.g., a touch panel).

[0227] In addition, the processor 1001, the memory 1002 and other devices are connected via a bus 1007 for communicating information. The bus 1007 may be configured as a single bus or different buses may be used between the devices.

[0228] In addition, the base station 10 and the user terminal 20 may also be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), and a field programmable gate array (FPGA), and the hardware may be used to implement a part or all of each functional block. For example, the processor 1001 may also be implemented using at least one of these hardware.

[0229] (Variation Example)

[0230] In addition, the terms described in the present disclosure and the terms required for understanding the present disclosure may also be replaced with terms having the same or similar meanings. For example, channels, code elements, and signals (signals or signaling) may also be replaced with each other. In addition, a signal may also be a message. A reference signal may also be referred to as RS, and may also be referred to as a pilot, a pilot signal, etc., depending on the standard applied. In addition, a component carrier (CC) may also be referred to as a cell, a frequency carrier, a carrier frequency, etc.

[0231] A wireless frame may also be composed of one or more periods (frames) in the time domain. Each period (frame) of the one or more periods (frames) constituting a wireless frame may also be referred to as a subframe. Further, a subframe may also be composed of one or more time slots in the time domain. A subframe may also be a fixed time length (e.g., 1 ms) that is not dependent on a parameter set (numerology).

[0232] Here, the parameter set may also refer to a communication parameter applied in at least one of the transmission and reception of a certain signal or channel. For example, the parameter set may also represent at least one of the subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), the number of symbols per TTI, wireless frame structure, specific filtering processing performed by the transmitter and receiver in the frequency domain, specific windowing processing performed by the transmitter and receiver in the time domain, etc.

[0233] A time slot may also be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.) in the time domain. In addition, a time slot may also be a time unit based on a parameter set.

[0234] A time slot may also include multiple mini-slots. Each mini-slot may also be composed of one or more symbols in the time domain. In addition, a mini-slot may also be referred to as a sub-slot. A mini-slot may also be composed of fewer symbols than a time slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a mini-slot may also be referred to as a PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot may also be referred to as a PDSCH (PUSCH) mapping type B.

[0235] Radio frames, subframes, time slots, mini-time slots, and symbols all represent time units for transmitting signals. Radio frames, subframes, time slots, mini-time slots, and symbols may also be referred to by their respective names. In addition, time units such as frames, subframes, time slots, mini-time slots, and symbols in the present disclosure may also be interchangeable.

[0236] For example, a subframe may also be referred to as a TTI, a plurality of consecutive subframes may also be referred to as a TTI, and a time slot or a mini time slot may also be referred to as a TTI. That is, at least one of a subframe and a TTI may be a subframe (1 ms) in the existing LTE, or a period shorter than 1 ms (for example, 1-13 symbols), or a period longer than 1 ms. In addition, the unit representing a TTI may also be referred to as a time slot, a mini time slot, etc. instead of a subframe.

[0237] Here, TTI refers to, for example, the minimum time unit for scheduling in wireless communication. For example, in the LTE system, the base station schedules each user terminal to allocate wireless resources (frequency bandwidth, transmission power, etc. that can be used in each user terminal) in TTI units. In addition, the definition of TTI is not limited to this.

[0238] TTI may also be a transmission time unit for a data packet (transport block), a code block, a code word, etc. that has been channel-coded, and may also be a processing unit for scheduling, link adaptation, etc. In addition, when TTI is given, the time interval (e.g., the number of symbols) to which a transport block, a code block, a code word, etc. is actually mapped may also be shorter than the TTI.

[0239] In addition, when a time slot or a mini time slot is called TTI, more than one TTI (i.e., more than one time slot or more than one mini time slot) can also be the minimum time unit of scheduling. In addition, the number of time slots (mini time slots) constituting the minimum time unit of scheduling can also be controlled.

[0240] A TTI having a time length of 1 ms may also be referred to as a normal TTI (TTI in 3GPP Rel.8-12), a standard TTI, a long TTI, a normal subframe, a standard subframe, a long subframe, a time slot, etc. A TTI shorter than a normal TTI may also be referred to as a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a mini time slot, a sub time slot, a time slot, etc.

[0241] In addition, a long TTI (e.g., normal TTI, subframe, etc.) may be replaced by a TTI having a time length exceeding 1 ms, and a short TTI (e.g., shortened TTI, etc.) may be replaced by a TTI having a TTI length shorter than that of the long TTI and longer than 1 ms.

[0242] A resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or more consecutive subcarriers (subcarriers) in the frequency domain. The number of subcarriers included in an RB may also be the same regardless of the parameter set, for example, 12. The number of subcarriers included in an RB may also be determined based on the parameter set.

[0243] In addition, an RB may also include one or more symbols in the time domain, and may also be the length of a slot, a mini-slot, a subframe, or a TTI. A TTI, a subframe, etc. may also be composed of one or more resource blocks, respectively.

[0244] In addition, one or more RBs may also be referred to as a physical resource block (Physical RB (PRB)), a sub-carrier group (Sub-Carrier Group (SCG)), a resource element group (Resource Element Group (REG)), a PRB pair, an RB pair, etc.

[0245] In addition, a resource block may also be composed of one or more resource elements (RE). For example, one RE may also be a radio resource region of one subcarrier and one symbol.

[0246] A Bandwidth Part (BWP) (also referred to as a partial bandwidth, etc.) may also represent a subset of contiguous common RBs (common resource blocks) for a parameter set in a carrier. Here, a common RB may also be identified by an index of the RB relative to a common reference point of the carrier. PRBs may also be defined in a BWP and numbered within the BWP.

[0247] The BWP may include a UL BWP (BWP for UL) and a DL BWP (BWP for DL). For a UE, one or more BWPs may be configured in one carrier.

[0248] At least one of the configured BWPs may be activated, and the UE may not assume that it transmits or receives a specific channel / signal other than the activated BWP. In addition, "cell", "carrier", etc. in the present disclosure may also be replaced by "BWP".

[0249] In addition, the above-mentioned structures such as radio frames, subframes, time slots, mini-time slots and symbols are only examples. For example, the number of subframes included in a radio frame, the number of time slots in each subframe or radio frame, the number of mini-time slots included in a time slot, the number of symbols and RBs included in a time slot or mini-time slot, the number of subcarriers included in an RB, the number of symbols in a TTI, the symbol length, and the cyclic prefix (CP) length can be changed in various ways.

[0250] In addition, the information, parameters, etc. described in the present disclosure may be represented by absolute values, relative values ​​relative to a specific value, or other corresponding information. For example, wireless resources may also be indicated by a specific index.

[0251] In the present disclosure, the names used for parameters, etc. are not limiting in all respects. Furthermore, the mathematical formulas, etc. using these parameters may be different from those explicitly disclosed in the present disclosure. Various channels (PUCCH, PDCCH, etc.) and information elements can be identified by any suitable names, and therefore, the various names assigned to these various channels and information elements are not limiting in all respects.

[0252] Information, signals, etc. described in the present disclosure may also be represented using any of a variety of different techniques. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be mentioned throughout the above description may also be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination thereof.

[0253] Furthermore, information, signals, etc. can be output in at least one of the following directions: from a higher layer (upper layer) to a lower layer (lower layer), and from a lower layer to a higher layer. Information, signals, etc. can also be input and output via multiple network nodes.

[0254] The input and output information, signals, etc. may be stored in a specific location (e.g., a memory), or may be managed using a management table. The input and output information, signals, etc. may be overwritten, updated, or appended. The output information, signals, etc. may also be deleted. The input information, signals, etc. may also be sent to other devices.

[0255] The notification of information is not limited to the methods / implementations described in the present disclosure, and may also be performed by other methods. For example, the notification of information in the present disclosure may also be implemented through physical layer signaling (e.g., downlink control information (Downlink Control Information (DCI))), uplink control information (Uplink Control Information (UCI))), high-layer signaling (e.g., Radio Resource Control (RRC) signaling, broadcast information (Master Information Block (MIB)), System Information Block (SIB)), etc.), Medium Access Control (MAC) signaling), other signals or a combination thereof.

[0256] In addition, physical layer signaling may also be referred to as layer 1 / layer 2 (Layer 1 / Layer 2 (L1 / L2)) control information (L1 / L2 control signal), L1 control information (L1 control signal), etc. In addition, RRC signaling may also be referred to as an RRC message, such as an RRC connection establishment (RRC Connection Setup) message, an RRC connection reconstruction (RRC Connection Reconfiguration) message, etc. In addition, MAC signaling may also be notified using, for example, a MAC control element (MACControl Element (CE)).

[0257] Furthermore, notification of specific information (for example, notification of “it is X”) is not limited to explicit notification, but may be performed implicitly (for example, by not notifying the specific information or by notifying other information).

[0258] The determination can be made by a value represented by a bit (0 or 1), by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a specific value).

[0259] Whether software is called software, firmware, middle-ware, microcode, hardware description language, or other names, it should be broadly interpreted as meaning instructions, instruction sets, code, code segments, program code, program, sub-program, software modules, applications, software applications, software packages, routines, sub-routines, objects, executable files, execution threads, procedures, functions, etc.

[0260] In addition, software, instructions, information, etc. may also be sent and received via a transmission medium. For example, when software is sent from a website, server, or other remote source using at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and wireless technology (infrared, microwave, etc.), at least one of these wired technology and wireless technology is included in the definition of transmission medium.

[0261] The terms "system" and "network" used in the present disclosure can be used interchangeably. "Network" may also refer to a device (eg, a base station) included in the network.

[0262] In the present disclosure, terms such as "precoding", "precoder", "weight (precoding weight)", "Quasi-Co-Location (QCL)", "Transmission Configuration Indication state (TCI state)", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angle", "antenna", "antenna element", and "panel" can be used interchangeably.

[0263] In the present disclosure, terms such as "Base Station (BS)", "wireless base station", "fixed station", "NodeB", "eNB (eNodeB)", "gNB (gNodeB)", "access point", "Transmission Point (TP)", "Reception Point (RP)", "Transmission / Reception Point (TRP)", "panel", "cell", "sector", "cell group", "carrier", and "component carrier" can be used interchangeably. There are also cases where base stations are referred to by terms such as macro cell, small cell, micro-micro cell, and micro-micro cell.

[0264] A base station can accommodate one or more (for example, three) cells. When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be divided into multiple smaller areas, and each smaller area can also provide communication services through a base station subsystem (for example, a small base station for indoor use (Remote Radio Head (RRH))). Terms such as "cell" or "sector" refer to a part or the entirety of the coverage area of ​​at least one of a base station and a base station subsystem that provides communication services within the coverage area.

[0265] In the present disclosure, terms such as “mobile station (MS)”, “user terminal”, “user device (User Equipment (UE))”, and “terminal” are used interchangeably.

[0266] There are also cases where a mobile station is referred to as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, hand set, user agent, mobile client, client or some other appropriate terminology.

[0267] At least one of the base station and the mobile station may also be referred to as a transmitting device, a receiving device, a wireless communication device, etc. In addition, at least one of the base station and the mobile station may also be a device carried in a mobile body, a mobile body, etc. The mobile body may be a means of transportation (e.g., a vehicle, an airplane, etc.), a mobile body that moves in an unmanned manner (e.g., a drone, an autonomous driving vehicle, etc.), 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 may also be an Internet of Things (IoT) device such as a sensor.

[0268] In addition, the base station in the present disclosure may also be replaced by a user terminal. For example, the various methods / implementations of the present disclosure may also be applied to a structure in which the communication between a base station and a user terminal is replaced by the communication between multiple user terminals (for example, it may also be referred to as device-to-device (D2D)), vehicle-to-everything (V2X), etc.). In this case, it may also be set as a structure in which the user terminal 20 has the functions possessed by the above-mentioned base station 10. In addition, terms such as "uplink" and "downlink" may also be replaced by terms corresponding to inter-terminal communication (for example, "side"). For example, an uplink channel, a downlink channel, etc. may also be replaced by a side channel.

[0269] Likewise, the user terminal in the present disclosure may be replaced by a base station. In this case, the base station 10 may have the functions of the user terminal 20 described above.

[0270] In the present disclosure, operations are assumed to be performed by a base station, and sometimes by its upper node depending on the situation. Obviously, in a network including one or more network nodes having a base station, various operations performed for communication with a terminal can be performed by a base station, one or more network nodes other than the base station (for example, Mobility Management Entity (MME)), Serving-Gateway (S-GW), etc., but not limited to these), or a combination thereof.

[0271] The various methods / implementations described in this disclosure may be used individually or in combination, and may be used in a switched manner as the method is executed. In addition, the processing procedures, sequences, flow charts, etc. of the various methods / implementations described in this disclosure may be reversed in order as long as they are not contradictory. For example, for the methods described in this disclosure, the elements of various steps are presented in an illustrative order, but are not limited to the specific order presented.

[0272] The various modes / implementations described in the present disclosure may also be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG) (xG (x is, for example, an integer or a decimal)), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), systems using other appropriate wireless communication methods, and next-generation systems expanded based on them. In addition, multiple systems can also be applied in combination (for example, LTE or LTE-A, combination with 5G, etc.).

[0273] The term “based on” used in the present disclosure does not mean “based only on” unless otherwise specified. In other words, the term “based on” means both “based only on” and “based at least on”.

[0274] Any reference to an element using the terms "first", "second", etc. used in this disclosure does not fully define the amount or order of these elements. These terms can be used in this disclosure as a convenient method to distinguish between two or more elements. Therefore, reference to the first and second elements does not mean that only two elements can be used, or that the first element must take precedence over the second element in some form.

[0275] The term "determining" used in the present disclosure may include a variety of operations. For example, "determining" may also refer to situations where judging, calculating, computing, processing, deriving, investigating, looking up (e.g., searching in a table, database or other data structure), ascertaining, etc. are considered to be "determining".

[0276] In addition, "judgment (decision)" may also be a situation where receiving (for example, receiving information), sending (for example, sending information), input (input), output (output), accessing (for example, accessing data in a memory), etc. are regarded as making a "judgment (decision)".

[0277] In addition, "judgment (decision)" can also refer to situations where resolving, selecting, choosing, establishing, comparing, etc. are considered as "judgment (decision)". In other words, "judgment (decision)" can also refer to situations where some actions are considered as "judgment (decision)".

[0278] In addition, “judgment (decision)” can also be replaced by “assuming (assuming)”, “expecting (expecting)”, “considering (considering)” and so on.

[0279] The “maximum transmit power” recorded in the present disclosure may mean the maximum value of the transmit power, the nominal maximum transmit power (the nominal UE maximum transmit power), or the rated maximum transmit power (the rated UE maximum transmit power).

[0280] The terms "connected", "coupled", or all their variations used in this disclosure mean all direct or indirect connections or combinations between two or more elements, and may include the situation where one or more intermediate elements exist between two elements that are "connected" or "coupled" to each other. The combination or connection between elements may be physical, logical, or a combination thereof. For example, "connection" may also be replaced by "access".

[0281] In the present disclosure, when two elements are connected, it can be considered that they are "connected" or "combined" to each other using one or more wires, cables, printed electrical connections, etc., as well as using electromagnetic energy with wavelengths in the wireless frequency domain, microwave region, light (both visible and invisible) region, etc. as several non-limiting and non-inclusive examples.

[0282] In the present disclosure, the term "A is different from B" may also mean "A and B are different from each other". In addition, the term may also mean "A and B are different from C, respectively". The terms "separate" and "combined" may also be interpreted as "different".

[0283] In the present disclosure, when the terms "include", "including", and variations thereof are used, these terms, like the term "comprising", have an inclusive meaning. Furthermore, the term "or" used in the present disclosure does not mean an exclusive OR.

[0284] In the present disclosure, when an article is added by translation like a, an, and the in English, for example, the present disclosure may also include a case where the noun following the article is in plural form.

[0285] The invention involved in the present disclosure has been described in detail above, but it is obvious to those skilled in the art that the invention involved in the present disclosure is not limited to the embodiments described in the present disclosure. The invention involved in the present disclosure can be implemented as a modified and altered mode without departing from the gist and scope of the invention determined based on the description of the claims. Therefore, the description of the present disclosure is for the purpose of illustrative description and does not have any limiting meaning on the invention involved in the present disclosure.

Claims

1. A terminal having: a sending unit, configured to send a report including a status indicating activation or deactivation for each of the plurality of beams; and A control unit sets a timer related to the retransmission of the report initiated based on the transmission of the report, for the beam whose status change is reported in the report, receives the common transmission of permission information for the multiple beams, and controls the retransmission of the report based on the timer when the permission information is negative for the beam whose status change is reported.

2. The terminal according to claim 1, wherein: Regarding the beam for which the change in state is reported, when the permission information is affirmative, the control unit stops the timer.

3. A wireless communication method, comprising: The step of sending a report including a status indicating activation or deactivation for each of the plurality of beams; and For the beam whose status change is reported in the report, a timer related to the retransmission of the report started based on the sending of the report is set, and for the report, a common transmission of permission information for the multiple beams is received, and for the beam whose status change is reported, when the permission information is negative, a step of controlling the retransmission of the report based on the timer.

4. A base station, comprising: A receiving unit receives a report including an activation or deactivation status for each beam in the plurality of beams; a sending unit, for the report, collectively sending permission information for the plurality of beams; as well as A control unit controls, with respect to a beam whose status is reported to have changed, reception of a retransmission of the report controlled by a timer when the permission information is negative, wherein the timer is a timer set for the retransmission of the report initiated based on the sending of the report, with respect to the beam whose status is reported to have changed.

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