Terminal, communication system and wireless communication method

Abstract

A terminal according to one embodiment of the present disclosure is characterized in that it comprises: a control unit that determines whether to turn on or off the power of each of a plurality of panels and switches the power of the panel on or off; a receiving unit that uses the panel that is powered on to receive a signal; and a sending unit that uses the panel that is powered on to send a signal. According to one embodiment of the present disclosure, the power consumption of the panel can be suppressed.

Description

Technical Field

[0001] The present disclosure relates to a terminal and a wireless communication method 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 of the Third Generation Partnership Project (3GPP)).

[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 the existing LTE system (e.g., 3GPP Rel.8-14), the user terminal (User Equipment (UE)) uses at least one of the UL data channel (e.g., Physical Uplink Shared Channel (PUSCH)) and the UL control channel (e.g., Physical Uplink Control Channel (PUCCH)) to send uplink control information (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 Rel.15, in order to support beam management (BM), the UE always turns on the power of multiple panels. By always turning on the power of the panel, when the communication speed of the panel in use decreases due to obstacles, etc., the UE can switch to another panel. However, since the power of multiple panels is always turned on in advance, there is a problem of increased power consumption.

[0010] Therefore, one of the objects of the present disclosure is to provide a terminal and a wireless communication method capable of suppressing the power consumption of a panel.

[0011] Means for solving problems

[0012] A terminal involved in one embodiment of the present invention is characterized in that it comprises: a control unit that determines whether to turn on or off the power of each of a plurality of panels and switches the power of the panels on or off; a receiving unit that uses the panels that are powered on to receive signals; and a sending unit that uses the panels that are powered on to send signals.

[0013] Effects of the Invention

[0014] According to one aspect of the present disclosure, it is possible to suppress power consumption of the panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a diagram showing panel usage of UE in 3GPP Rel.15.

[0016] Figure 2 This is a diagram showing a first example of panel usage of UE.

[0017] Figure 3 This is a diagram showing a second example of panel usage of UE.

[0018] Figure 4 This is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment.

[0019] Figure 5 This is a diagram showing an example of the configuration of a base station according to an embodiment.

[0020] Figure 6 This is a diagram showing an example of a configuration of a user terminal according to an embodiment.

[0021] Figure 7 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

[0022] 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. Alternatively, the UE can dynamically switch the panel to be used and use it by an implicit method (notification).

[0023] However, in Rel.15, in order to support beam management, the UE always turns on the power of multiple panels. Since the power of the panel is always turned on, when the communication speed of the panel in use is reduced due to obstacles, etc., the UE can quickly switch to other panels to improve performance. However, since the power of multiple panels is always turned on in advance, there is a problem of high power consumption and low efficiency.

[0024] Therefore, the inventors of the present invention have come up with a terminal, which includes: a control unit that determines whether to turn on or off the power of each of a plurality of panels and switches the power of the panel on or off; a receiving unit that uses the panel that is powered on to receive a signal; and a sending unit that uses the panel that is powered on to send a signal. According to one embodiment of the present disclosure, the power consumption of the panel can be suppressed.

[0025] Hereinafter, the embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. The wireless communication methods involved in each embodiment may be applied separately 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 by "instruction", "setting", and "sending".

[0026] Below, the "panel" of the UE in the present disclosure can also be replaced with 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".

[0027] "Turning on the power of the panel" in the present disclosure refers to the activation state of the panel, and 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 from the NW through downlink control information (Downlink Control Information (DCI))) can be received, and a state in which a UL data channel (for example, Physical Uplink Shared Channel (PUSCH)) scheduled from the NW through DCI) can be sent.

[0028] In addition, "turning off the power supply of the panel" in the present disclosure refers to the inactive state of the panel, and may also refer to at least one of a state in which no request is made to perform blind detection of PDCCH in the set search space, a state in which no request is made to receive PDSCH scheduled from NW through DCI, etc., and a state in which no request is made to send PUSCH scheduled from NW through DCI, etc.

[0029] In the present disclosure, the panel power may be actually turned on or off (whether the panel is powered on) according to the implementation of the UE. For example, even in the state of "powering off the panel" in the present disclosure, a UE with high power consumption efficiency (above a specific value) may actually turn on the panel power (power on).

[0030] (Wireless Communication Method)

[0031] <First Embodiment>

[0032] In the first embodiment, the UE receives setting information related to the panel from the base station. The setting information is information indicating whether the power of the panel is turned on (activated) / off (deactivated), and can also be set for each panel. Based on the setting information, the UE decides to turn the power of the panel on or off, and switches the power of the panel on or off. Then, the UE uses the panel with the power on to send and receive signals.

[0033] In the present disclosure, when the number of panels of the UE is set to M and the number of panels that the UE can switch is set to N, it is assumed that 0≤N≤M holds. That is, only a part of the panels of the UE can be switched. In addition, the UE can also switch the power of the panel on / off semi-statically. For example, the switching interval of the power of the panel on / off can also be longer than a specific period.

[0034] (Method 1-1)

[0035] The UE may also receive setting information of each panel set by the base station through high-layer signaling (e.g., Radio Resource Control (RRC) signaling). The setting information may also indicate the on or off state of each panel. The setting information may also be information set based on at least one of a UE report related to the panel information, a Radio Resource Management (RRM) measurement result, and a physical layer (Layer 1 (L1)) measurement result.

[0036] (Method 1-2)

[0037] The base station may also use MAC control elements (Medium Access Control Control Element (MAC CE)) or both RRC signaling and MAC CE to indicate the setting information of each panel of the UE. When the UE report indicates that the number of panels is 4, the setting information may also indicate the on / off status of each panel through a 4-bit bitmap.

[0038] In the MAC CE, the power on / off of the panel is set by an m-bit bitmap. m can be pre-specified in the specification, or can be set according to the number of panels set by RRC. Alternatively, the power on / off of the panel can also be set according to the panel identifier (identification (ID)) set by RRC. For example, only the ID of the panel that is the object of turning on or off the power is set by RRC.

[0039] (Method 1-3)

[0040] The base station may also set a timer for each UE or each panel and notify the UE of the status of the timer. The UE may also control the on / off of the power of the panel based on the status of the notified timer. For example, when the timer expires (when the set time is reached), the UE may also switch the panel on or off. In addition, when the timer is restarted in the state where the power of the panel is off (or on), the UE may also switch the panel power on (or off).

[0041] For example, if the RRM / L1 measurement results reported by the UE include the beam / panel information of panel i, the base station may also restart the timer of panel i. If the RRM / L1 measurement results reported by the UE do not include the beam / panel information of panel j, the timer of panel j may expire after a specific period, and the UE may also disconnect panel j.

[0042] (Method 1-4)

[0043] The on / off state of the panel can also be implicitly indicated by other parameters set in the base station. For example, the on / off state of panel j can also be indicated by whether the panel ID (j) is set for the RS (whether the panel is associated with the RS), or whether the RS corresponding to panel j is set (aperiodic / semi-persistence / periodic), or whether the spatial relationship information corresponding to panel j is set.

[0044] For example, the MAC CE activation of the semi-persistent CSI-RS resource set corresponding to panel j may also be regarded as signaling indicating the activation (power-on) of panel j.

[0045] Figure 2: is a diagram showing the first example of panel usage of UE. Assume that the base station sends the panel ID of the panel (panel #1) to be powered on among multiple panels to the UE. In this case, the UE switches the power of panel #1 on and uses panel #1 to send and receive various signals. Assume that panel #2 is in the off state. Figure 2 In the example shown, since a plurality of panels are not turned on at the same time, power consumption can be suppressed.

[0046] Figure 3 This is the second example of the use of the UE panel. Figure 3 In the example shown, a structure including multiple base stations and UE is shown. It is assumed that base station A and base station B are connected, for example, via a high-speed (low-latency) line (ideal backhaul) or a low-speed (medium-latency) line (non-ideal backhaul). It is assumed that the UE can use multiple panels to transmit and receive with multiple base stations at the same time.

[0047] exist Figure 3 In the example shown, the UE receives setting information for turning on panel #1 from base station A, and receives setting information for turning on panel #2 from base station B. The UE uses panel #1 to send and receive signals with base station A, and uses panel #2 to send and receive signals with base station B. Figure 3 In the example shown, performance can be improved by using multiple panels simultaneously to transmit and receive simultaneously.

[0048] <Second Embodiment>

[0049] In the second embodiment, the UE decides to turn on or off the power of the panel based on the control of the terminal (the UE), and switches the power of the panel on or off. Then, the UE sends the decision content of turning on or off the power of the panel to the base station. Then, the UE uses the panel with the power turned on to send and receive signals.

[0050] Assume that: when the number of panels of the UE is M and the number of panels that the UE can switch is N, 0≤N≤M holds. That is, only a part of the panels of the UE can be switched. In addition, the UE can also switch the power of the panel on / off semi-statically. That is, the switching interval of the power of the panel on / off can also be longer than a specific period.

[0051] The UE may also decide to turn on or off a specific panel based on an operation implemented or specified by the UE. For example, the UE may also decide to turn on or off a specific panel based on at least one of an RRM measurement result and an L1 measurement result.

[0052] The UE may also notify the base station of the decision content (panel status) of turning on / off the panel power through explicit signaling in the uplink control information (Uplink Control Information (UCI)) notification or signaling of the MAC CE.

[0053] The base station can also implicitly understand the decision content (panel status) of the UE's panel power on / off through the UE's RRM / L1 measurement report. For example, when the UE notifies the RRM / L1 measurement result that does not include the beam / panel information of panel j, the base station can also understand that panel j is disconnected.

[0054] The UE may also perform a process that combines the process of the first embodiment with the process of the second embodiment. For example, after the UE switches the power of the panel on or off based on the control of the UE, when receiving setting information related to the panel from the base station, the UE may also switch the power of the panel on / off based on the setting information.

[0055] For example, the UE may decide to turn off the power of the panel based on the control of the UE, and then switch on the power of the panel based on the setting of the base station using the panel ID or the activation of the RS corresponding to the panel.

[0056] <Third Embodiment>

[0057] In the third embodiment, the UE temporarily (for a specific period) turns on a panel that is powered off (determined to be powered off) to receive a signal used in at least one of physical layer (Layer 1 (L1)) measurement, Radio Link Monitoring (RLM), and Beam Failure Detection (BFD)). Alternatively, the UE may not receive all signals in the panel that is powered off.

[0058] The UE may also not receive / scheduling downlink control channels (physical downlink control channel (Physical Downlink Control Channel (PDCCH))) / downlink shared channels (physical downlink shared channel (Physical Downlink Shared Channel (PDSCH))) in a panel where the power is off. In addition, the UE may not monitor the control resource set (CORESET) and search space in a panel that is determined to be powered off. The UE may also not receive (measure) non-periodic signals (e.g., non-periodic RS, non-periodic CSI-RS) in a panel where the power is off.

[0059] On the other hand, the UE may also temporarily turn on a panel that is powered off, receive the set beam / RS, and perform L1 measurement of the beam / RS. The signal of the L1 measurement object may also be, for example, at least one of an SS block (Synchronization Signal block (SSB)), a Channel State Information Reference Signal (CSI-RS), and aperiodic / semi-persistent / periodic RS. The UE may also temporarily turn on a panel that is powered off, receive (measure) at least one of a periodic signal (e.g., SSB, periodic CSI-RS) and a semi-persistent signal (e.g., semi-persistent CSI-RS).

[0060] In this way, the UE performs L1 measurement by temporarily turning on a panel that is powered off, thereby shortening the time for beam management and beam selection of the panel after the panel is changed from off to on. For example, the base station may also set / activate a semi-persistent CSI-RS resource set for L1 measurement and reporting before planning (deciding) to turn on the UE's panel j. After receiving the measurement report, the base station sets the target beam and turns on the panel so that the UE can quickly transmit through the beam.

[0061] In addition, the UE may temporarily turn on a panel that is powered off, and use the panel to receive a signal (SSB / CSI-RS) used in at least one of RLM and BFD. Then, the UE may also use the panel to perform at least one of RLM and BFD.

[0062] <Fourth Embodiment>

[0063] In the fourth embodiment, the UE may temporarily (for a specific period) turn on a panel that is powered off (determined to be powered off) and transmit a reference signal for measurement (sounding reference signal (SRS)). Alternatively, the UE may not transmit all signals in the panel that is powered off.

[0064] The UE may also not send the uplink control channel (Physical Uplink Control Channel (PUCCH)) / uplink shared channel (Physical Uplink Shared Channel (PUSCH))) / SRS in the panel where the power is off. The UE may also not send non-periodic signals (for example, non-periodic RS, non-periodic SRS) in the panel where the power is off.

[0065] On the other hand, the UE may temporarily turn on a panel that is powered off and use the panel to send an SRS configured for beam management purposes. The UE may temporarily turn on a panel that is powered off and send at least one of a periodic signal (e.g., a periodic SRS, a type 1 configured grant PUSCH) and a semi-persistent signal (e.g., a semi-persistent SRS, a type 2 configured grant PUSCH).

[0066] As a result, the time spent on UL beam management and beam selection of the panel after switching the power of the panel from off to on can be shortened. The UE may also only send SRS resources / resource sets whose usage is beam management. In addition, the usage of SRS resources / resource sets may also be antenna switching used by the base station to verify the transmission beam of the UE. The usage of SRS resources / resource sets may also be both beam management and antenna switching.

[0067] According to the above-described embodiments, the UE may not always turn on the power of the multiple panels, but may switch the power of the panels on / off based on setting information from the base station or control of the UE, thereby suppressing the power consumption of the panels. For example, the UE may semi-statically turn off a specific panel in order to save power when the specific panel is not facing the base station and is not in use.

[0068] (Wireless Communication System)

[0069] The following describes a configuration of a wireless communication system according to an embodiment of the present disclosure. In the wireless communication system, communication is performed using any one of the wireless communication methods according to the above-described embodiments of the present disclosure or a combination thereof.

[0070] Figure 4 1 is a diagram showing an example of a schematic structure of a wireless communication system involved in an 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.

[0071] 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.

[0072] 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.

[0073] 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)).

[0074] 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.

[0075] 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).

[0076] 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 be equivalent to a frequency band higher than FR2.

[0077] Furthermore, in each CC, the user terminal 20 may communicate using at least one of time division duplex (TDD) and frequency division duplex (FDD).

[0078] Multiple base stations 10 may also be connected by wire (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.

[0079] 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.

[0080] The user terminal 20 may also be a terminal that supports at least one of communication modes such as LTE, LTE-A, and 5G.

[0081] 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.

[0082] 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.

[0083] As downlink channels, the wireless communication system 1 may use 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)), etc.

[0084] In addition, 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 can also be used in the wireless communication system 1.

[0085] 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).

[0086] 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.

[0087] In addition, the DCI for scheduling PDSCH may also be referred to as DL allocation, DL DCI, etc., and the DCI for scheduling PUSCH may also be referred to as UL grant, UL DCI, etc. In addition, PDSCH may also be replaced by DL data, and PUSCH may also be replaced by UL data.

[0088] 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.

[0089] A search space may also correspond to PDCCH candidates that are consistent with 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.

[0090] Uplink control information (uplink control information (UCI)) including at least one of channel state information (CSI), delivery confirmation information (e.g., also called hybrid automatic repeat request confirmation (HARQ-ACK), ACK / NACK, etc.) and scheduling request (Scheduling Request (SR)) can also be transmitted through PUCCH. Random access preamble code used to establish connection with a cell can also be transmitted through PRACH.

[0091] In the present disclosure, downlink, uplink, etc. may be expressed without the word “link.” In addition, various channels may be expressed without the word “physical” at the beginning.

[0092] 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.

[0093] 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 an SS / PBCH block, SS block (SS Block (SSB)), etc. In addition, SS, SSB, etc. may also be referred to as reference signals.

[0094] In addition, as an uplink reference signal (UL-RS), a measurement reference signal (Sounding Reference Signal (SRS)), a demodulation reference signal (DMRS), etc. can also be transmitted in the wireless communication system 1. In addition, DMRS can also be called a user terminal specific reference signal (UE-specific Reference Signal).

[0095] (Base Station)

[0096] Figure 5 1 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.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] 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.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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 and control information obtained from the control unit 110 to generate a bit string to be sent.

[0106] 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.

[0107] 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 .

[0108] 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 .

[0109] 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 obtained baseband signal to obtain user data, etc.

[0110] 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.

[0111] The transmission path interface 140 can also send and receive signals (return signaling) between 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.

[0112] In addition, the transmitting unit and the receiving unit of the base station 10 in the present disclosure may also be constituted by at least one of the transmitting and receiving unit 120 , the transmitting and receiving antenna 130 , and the transmission path interface 140 .

[0113] In addition, the transmitting and receiving unit 120 may also use the panel whose power is turned on to receive the signal sent by the UE, and send the signal in the panel whose power is turned on of the UE. The transmitting and receiving unit 120 may also send the setting information related to the panel to the UE. The transmitting and receiving unit 120 may also receive the content of the decision to turn on or off the power of the panel from the UE based on the control of the UE. When the panel of the UE whose power is turned off becomes temporarily turned on, the transmitting and receiving unit 120 may also send a signal used in at least one of physical layer measurement, radio link monitoring, and beam failure detection. When the panel of the UE whose power is turned off becomes temporarily turned on, the transmitting and receiving unit 120 may also receive a reference signal for measurement from the panel.

[0114] The control unit 110 may also perform control to determine whether to turn on or off the power of the panel of the UE, and transmit setting information indicating the determination content to the UE.

[0115] (User Terminal)

[0116] Figure 6 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 be provided in one or more pieces.

[0117] 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.

[0118] 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.

[0119] 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.

[0120] 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.

[0121] The transmitting and receiving unit 220 may be configured as an integrated transmitting and receiving unit, or may be configured as a transmitting unit and a receiving unit. The transmitting unit may also be configured as a transmitting processing unit 2211 and an RF unit 222. The receiving unit may also be configured as a receiving processing unit 2212, an RF unit 222, and a measuring unit 223.

[0122] 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.

[0123] 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.

[0124] 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.

[0125] The sending and receiving unit 220 (sending processing unit 2211) 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.

[0126] 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.

[0127] 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.

[0128] 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 .

[0129] 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 .

[0130] 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 obtained baseband signal to obtain user data, etc.

[0131] 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.

[0132] In addition, the transmitting unit and the receiving unit of the user terminal 20 in the present disclosure may also be composed of at least one of the transmitting and receiving unit 220 and the transmitting and receiving antenna 230 .

[0133] In addition, the transmitting and receiving unit 220 can use the panel that is powered on to receive signals, and can also use the panel that is powered on to send signals. The transmitting and receiving unit 220 can also receive setting information related to the panel from the base station. The transmitting and receiving unit 220 can also send the decision content of turning the power of the panel on or off to the base station when it is decided to turn the power of the panel on or off based on the control of this terminal. The transmitting and receiving unit 220 can also temporarily turn on the panel that is powered off and receive a signal used in at least one of physical layer measurement, wireless link monitoring, and beam failure detection. The transmitting and receiving unit 220 can also temporarily turn on the panel that is powered off and send a reference signal for measurement.

[0134] The control unit 210 may also decide to turn on or off the power of each of the plurality of panels, and perform control to switch the power of the panel on or off. The control unit 210 may also decide to turn on or off the power of the panel based on setting information sent from the base station. The control unit 210 may also decide to turn on or off the power of the panel based on control of the terminal.

[0135] (Hardware Structure)

[0136] 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.

[0137] 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.

[0138] 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. Figure 7 1001, memory 1002, storage 1003, communication device 1004, input device 1005, output device 1006, bus 1007, etc.

[0139] 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.

[0140] 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.

[0141] 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.

[0142] 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.

[0143] 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 causes 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.

[0144] 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), and other appropriate storage media. The memory 1002 may also be referred to as a register, a cache, a main memory (main storage device), etc. The memory 1002 can store executable programs (program codes), software modules, etc. for implementing the wireless communication method involved in one embodiment of the present disclosure.

[0145] 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 (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.

[0146] 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 may 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. may also be realized by the communication device 1004. The transmitting and receiving unit 120 (220) may also be installed by the transmitting unit 120a (220a) and the receiving unit 120b (220b) separately physically or logically.

[0147] 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).

[0148] 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 may be configured as different buses between the devices.

[0149] 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 installed using at least one of these hardware.

[0150] (Variation Example)

[0151] 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.

[0152] 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).

[0153] 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.

[0154] 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.

[0155] 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.

[0156] 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.

[0157] 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 existing LTE, 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.

[0158] 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.

[0159] 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 be shorter than the TTI.

[0160] In addition, when one time slot or one mini time slot is referred to as TTI, one or more TTIs (i.e., one or more time slots or one or more mini time slots) may be the minimum time unit for scheduling. In addition, the number of time slots (mini time slots) constituting the minimum time unit for scheduling may also be controlled.

[0161] 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.

[0162] 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.

[0163] 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.

[0164] 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.

[0165] 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.

[0166] In addition, a resource block may be composed of one or more resource elements (RE). For example, one RE may be a radio resource region of one subcarrier and one symbol.

[0167] 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.

[0168] 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.

[0169] At least one of the configured BWPs may be activated, and the UE may not assume that it transmits or receives a specific signal / channel other than the activated BWP. In addition, "cell", "carrier", etc. in the present disclosure may also be replaced by "BWP".

[0170] 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.

[0171] 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.

[0172] In the present disclosure, the names used for parameters, etc. are not limiting in all respects. In addition, 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.

[0173] 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.

[0174] 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.

[0175] 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.

[0176] 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.

[0177] 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)).

[0178] Furthermore, notification of specific information (eg, notification of “it is X”) is not limited to explicit notification, but may be performed implicitly (eg, by not notifying the specific information or by notifying other information).

[0179] 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).

[0180] 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.

[0181] 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.

[0182] 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.

[0183] 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.

[0184] 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.

[0185] 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.

[0186] In the present disclosure, terms such as “mobile station (MS)”, “user terminal”, “user device (User Equipment (UE))”, and “terminal” can be used interchangeably.

[0187] 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.

[0188] 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.

[0189] 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 communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. may also be replaced by side channels.

[0190] 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.

[0191] In the present disclosure, the actions are assumed to be performed by the base station, and sometimes by its upper node (uppernode) 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 the base station, one or more network nodes other than the base station (for example, considering the Mobility Management Entity (MME)), the Serving-Gateway (S-GW), etc., but not limited to these) or a combination thereof.

[0192] 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.

[0193] The various modes and implementation modes 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), 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.).

[0194] 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”.

[0195] 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.

[0196] The term "determining" used in this disclosure may include a variety of actions. 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".

[0197] 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)".

[0198] 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)".

[0199] In addition, “judgment (decision)” can also be replaced by “assuming (assuming)”, “expecting (expecting)”, “considering (considering)” and so on.

[0200] 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 can include the situation where there are one or more intermediate elements between the two elements that are "connected" or "coupled" to each other. The combination or connection between the elements can be physical, logical, or a combination thereof. For example, "connection" can also be replaced by "access".

[0201] 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.

[0202] 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".

[0203] 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.

[0204] 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.

[0205] 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, characterized in that: have: A first panel and a second panel; a receiving unit, receiving first setting information for activating the first panel from a first sending and receiving point, i.e., a first TRP, and receiving second setting information for activating the second panel from a second TRP; a control unit, activating the first panel based on the first setting information, and using the activated first panel to send and receive signals to the first TRP, activating the second panel based on the second setting information, and using the activated second panel to send and receive signals to the second TRP, The sending and receiving of the first TRP and the sending and receiving of the second TRP are performed simultaneously.

2. The terminal according to claim 1, characterized in that The control unit activates the first panel and the second panel based on the control of the terminal, and then activates the first panel and the second panel respectively based on the first setting information and the second setting information.

3. The terminal according to claim 1 or 2, characterized in that: The control unit activates the first panel and the second panel for a specific period of time. The receiving unit receives a signal used for at least one of physical layer measurement, radio link monitoring, and beam failure detection using the first panel and the second panel during the specific period.

4. The terminal according to claim 1 or 2, characterized in that: The control unit continues activating the first panel and the second panel for a specific period, and transmits a measurement reference signal during the specific period.

5. A wireless communication method of a terminal having a first panel and a second panel, characterized in that: have: The step of receiving first setting information for activating the first panel from a first transmission and reception point, i.e., a first TRP, and receiving second setting information for activating the second panel from a second TRP; a step of activating the first panel based on the first setting information, and using the activated first panel to send and receive signals to the first TRP; activating the second panel based on the second setting information, and using the activated second panel to send and receive signals to the second TRP; as well as The steps of sending and receiving the first TRP and sending and receiving the second TRP are performed simultaneously.

6. A communication system comprising: The terminal according to claim 1, the first TRP, and the second TRP, The first TRP has a first sending unit for sending the first setting information, and the second TRP has a second sending unit for sending the second setting information.

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