WO2024043281A1 - Terminal and wireless communication method - Google Patents

Abstract

This terminal transmits, to a network, a measurement report including reception quality pertaining to cells including a serving cell and neighbor cells. The terminal determines whether a trigger condition, which is used for determining whether to execute a procedure for the transmission of the measurement report, is satisfied. Here, when the reception quality of beams from the cells satisfies a quality threshold, the terminal determines the cells that satisfy the trigger condition.

Description

Terminal and wireless communication method

The present disclosure relates to a terminal mounted on an unmanned aerial vehicle (UAV) and a wireless communication method.

The 3rd Generation Partnership Project (3GPP) specifies Long Term Evolution (LTE) and the 5th generation mobile communication system (5G, also known as New Radio (NR) or Next Generation (NG)), as well as Beyond 5G, 5G Evolution Alternatively, the next generation specifications called 6G are also being developed.

For example, 3GPP Release 18 is considering expanding support for small unmanned aerial vehicles (UAVs), such as drones equipped with wireless communication modules similar to user equipment (UE) (Non-patent Document 1).

Specifically, when there are many cases where visibility is good in the sky, such as with a UAV, interference with other UEs is likely to become a problem, so the measurement report triggering procedure ) can be defined as a special triggering condition (numberOfTriggeringCells) used to determine whether or not to execute.

The numberOfTriggeringCells is the number of cells whose reception quality satisfies the quality threshold and serves as a trigger for measurement reporting. ) The introduction of a triggering condition (numberOfTriggeringBeams) based on the number is being considered (Non-Patent Document 2).

However, when the above-mentioned triggering condition for beams (numberOfTriggeringBeams) is introduced, the following problems may occur. Specifically, there is a problem that simply defining numberOfTriggeringBeams does not necessarily contribute to interference reduction.

Furthermore, when the existing numberOfTriggeringCells and numberOfTriggeringBeams are used together, there is also the problem that it is difficult for the UE to execute an appropriate measurement report transmission procedure using both trigger conditions in combination.

Therefore, the following disclosure was made in view of this situation, and provides a terminal that can perform appropriate measurement report transmission procedures even when a triggering condition based on the number of beams (numberOfTriggeringBeams) is applied. and to provide wireless communication methods.

One aspect of the present disclosure includes a transmitting unit (control signal/reference signal processing unit 240) that transmits a measurement report including reception quality regarding cells including a serving cell and neighboring cells to a network, and a procedure for transmitting the measurement report. a control unit (control unit 270) that determines whether or not a trigger condition used to determine whether or not the trigger condition is satisfied; , is a terminal (UE 200) that determines that the cell satisfies the trigger condition.

One aspect of the present disclosure includes a step in which a terminal transmits a measurement report including reception quality regarding cells including a serving cell and neighboring cells to a network, and a step in which the terminal determines whether to perform a procedure for transmitting the measurement report. and determining whether or not a trigger condition used for the determination is satisfied, and in the determining step, if the reception quality of the beam from the cell satisfies a quality threshold, the cell is determined to meet the trigger condition. This is a wireless communication method.

FIG. 1 is an overall schematic configuration diagram of a wireless communication system 10. FIG. 2 is a diagram showing a configuration example of a radio frame, subframe, and slot used in the radio communication system 10. FIG. 3 is a functional block configuration diagram of the gNB 100 and the UE 200. FIG. 4 is a diagram illustrating a flow related to trigger determination of a measurement report according to operation example 1. FIG. 5 is a diagram showing a configuration example of cellsTriggeredList using numberOfTriggeringBeams. FIG. 6 is a diagram illustrating an example of a measurement report communication sequence according to operation example 3. FIG. 7 is a diagram showing an example of the hardware configuration of the gNB 100 and the UE 200. FIG. 8 is a diagram showing a configuration example of the vehicle 2001.

Hereinafter, embodiments will be described based on the drawings. Note that the same functions and configurations are given the same or similar symbols, and the description thereof will be omitted as appropriate.

(1) Overall schematic configuration of wireless communication system FIG. 1 is an overall schematic configuration diagram of a wireless communication system 10 according to an embodiment. The radio communication system 10 is a radio communication system that complies with 5G New Radio (NR), and includes a Next Generation-Radio Access Network 20 (hereinafter referred to as NG-RAN 20) and a terminal 200 (hereinafter referred to as UE 200).

Note that the wireless communication system 10 may be a wireless communication system that follows a system called Beyond 5G, 5G Evolution, or 6G.

NG-RAN20 includes radio base station 100A (hereinafter referred to as gNB100A) to radio base station 100D (hereinafter referred to as gNB100D). gNB100A to gNB100D have cells C1 to C4, respectively. Note that the specific configuration of the wireless communication system 10 including the number of gNBs and UEs is not limited to the example shown in FIG. 1.

NG-RAN 20 actually includes multiple NG-RAN Nodes, specifically gNB (or ng-eNB), and is connected to a 5G-compliant core network (5GC, not shown). Note that NG-RAN20 and 5GC may be simply expressed as "networks".

gNB100A to gNB100D are 5G-compliant radio base stations and perform 5G-compliant radio communication with the UE 200. gNB100A to gNB100D and UE200 use Massive MIMO (Multiple-Input Multiple-Output), which generates a highly directional beam BM by controlling radio signals transmitted from multiple antenna elements, and multiple component carriers (CC). ), and dual connectivity (DC), which simultaneously communicates with two or more transport blocks between the UE and two NG-RAN nodes.

The UE200 may be a UE mounted on a small unmanned aerial vehicle (UAV: Uncrewed Aerial Vehicle or Unmanned Aerial Vehicle). A UE200 mounted on a UAV or a UAV may be referred to as a NR drone. The UE200 may be referred to as a normal UE, vehicle UE, IAB (Integrated Access and Backhaul) UE (including aerial IAB UE), HAPS (High Altitude Platform Station) UE, NTN (Non Terrestrial Network) UE, etc.

gNB100A to gNB100D (hereinafter appropriately abbreviated as gNB100) can spatially and time-divisionally transmit multiple beams with different transmission directions (which may also be referred to simply as directions, radiation directions, coverage, etc.). Note that the gNB 100 may transmit multiple beams simultaneously.

Additionally, the wireless communication system 10 may support multiple frequency ranges (FR) shown below.

・FR1: 410 MHz to 7.125 GHz
・FR2-1: 24.25 GHz to 52.6 GHz
In FR1, Sub-Carrier Spacing (SCS) of 15, 30 or 60kHz is used, and a bandwidth (BW) of 5-100MHz may be used. FR2-1 is higher frequency than FR1, even if a subcarrier spacing (SCS) of 60 or 120kHz (may include 240kHz) is used, and a bandwidth (BW) of 50 to 400MHz is used. good.

Note that SCS may also be interpreted as numerology. Numerology is defined in 3GPP TS38.300 and corresponds to one subcarrier spacing in the frequency domain.

Furthermore, the wireless communication system 10 also supports a higher frequency band than the frequency band of FR2-1. Specifically, the wireless communication system 10 supports frequency bands exceeding 52.6 GHz and up to 71 GHz. Such a high frequency band may be referred to as FR2-2.

When using a band over 52.6GHz, even if you apply Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM)/Discrete Fourier Transform-Spread (DFT-S-OFDM) with larger Sub-Carrier Spacing (SCS) good.

Furthermore, in a high frequency band such as FR2-2, as mentioned above, an increase in phase noise between carriers becomes a problem. This may require the application of a larger (wider) SCS or a single carrier waveform.

The larger the SCS, the shorter the symbol/CP (Cyclic Prefix) period and slot period (if the 14 symbol/slot configuration is maintained). FIG. 2 shows an example of the configuration of radio frames, subframes, and slots used in the radio communication system 10.

If the 14 symbol/slot configuration is maintained, the larger (wider) the SCS, the shorter the symbol period (and slot period). Note that the symbol period may also be referred to as symbol length, time direction, time domain, or the like. Further, the frequency direction may be called a frequency domain, resource block, subcarrier, BWP (Bandwidth part), or the like.

Frequency resources may include component carriers (CCs), subcarriers, resource blocks (RBs), resource block groups (RBGs), BWPs (Bandwidth parts), etc. The time resources may include symbols, slots, minislots, subframes, radio frames, DRX (Discontinuous Reception) periods, and the like.

Note that the number of symbols constituting one slot does not necessarily have to be 14 symbols (for example, 28 or 56 symbols). Furthermore, the number of slots per subframe may vary depending on the SCS.

In the wireless communication system 10, an SSB (SS/PBCH Block) composed of a synchronization signal (SS) and a physical downlink channel (PBCH) may be used.

The SSB is periodically transmitted from the network mainly for the UE 200 to detect the cell ID and reception timing when starting communication. In NR, SSB is also used to measure the reception quality of each cell. The SSB transmission period (periodity) may be 5, 10, 20, 40, 80, 160 milliseconds, or the like. Note that the initial access UE 200 may be assumed to have a transmission cycle of 20 milliseconds.

The UE 200 transmits a measurement report (hereinafter referred to as a measurement report) including reception quality regarding cells including the serving cell and neighboring cells to the network. The procedure in which the UE 200 transmits a measurement report may be referred to as measurement reporting. The reception quality regarding a cell may include the reception quality of a beam from the cell, or may include the reception quality of the cell based on the beam from the cell.

The UE 200 may periodically execute measurement reporting. The UE 200 may perform measurement reporting for each event. Entering conditions for starting measurement reporting and leaving conditions for ending measurement reporting may be determined for each event. Existing events may include the following events (see 3GPP TS38.331):

(i)Event A1
Event A1 is an event in which the reception quality of the serving cell becomes better than a threshold. For example, the entering condition is Ms - Hys > Thresh, and the leaving condition is Ms + Hys < Thresh.

Here, Ms is the reception quality of the serving cell, Hys is a hysteresis parameter, and Thresh is a threshold value.

(ii) Event A2
Event A2 is an event in which the reception quality of the serving cell becomes worse than a threshold. For example, the entering condition is Ms + Hys < Thresh, and the leaving condition is Ms - Hys > Thresh.

Here, Ms is the reception quality of the serving cell, Hys is a hysteresis parameter, and Thresh is a threshold value.

(iii) Event A3
Event A3 is an event in which the reception quality of the neighboring cell becomes better than the reception quality of the serving by an offset. For example, the entering condition is Mn + Ofn + Ocn - Hys > Mp + Ofp + Ocp + Off, and the leaving condition is Mn + Ofn + Ocn + Hys < Mp + Ofp + Ocp + Off.

Here, Mn is the reception quality of the neighboring cell, Ofn is an offset specific to the measurement target, and Ocn is an offset specific to the cell. Mp is the reception quality of the serving cell, Ofp is an offset specific to the measurement target, and Ocp is an offset specific to the cell. Hys is a hysteresis parameter, and Off is a parameter used in Event A3.

(iv)Event A4
Event A4 is an event in which the reception quality of a neighboring cell becomes better than a threshold. For example, the entering condition is Mn + Ofn + Ocn - Hys > Thresh, and the leaving condition is Mn + Ofn + Ocn + Hys < Thresh.

Here, Mn is the reception quality of the neighboring cell, Ofn is an offset specific to the measurement target, and Ocn is an offset specific to the cell. Hys is a hysteresis parameter and Thresh is a threshold value.

(v)Event A5
Event A5 is an event in which the reception quality of the serving cell becomes worse than the threshold and the reception quality of the neighboring cell becomes better than the threshold. For example, the entering condition is Mp + Hys < Thresh1 and Mn + Ofn + Ocn - Hys > Thresh2, and the leaving condition is Mp - Hys >Thresh1 and Mn + Ofn + Ocn + Hys < Thresh2. .

Here, Ms is the reception quality of the serving cell, Hys is a hysteresis parameter, and Thresh1 is a threshold. Mn is the reception quality of a neighboring cell, Ofn is an offset specific to the measurement target, and Ocn is an offset specific to the cell. Hys is a hysteresis parameter, and Thresh2 is a threshold value.

(vi)Event A6
Event A6 is an event in which the reception quality of a neighboring cell becomes better than the reception quality of a SCell (Secondary Cell) by an offset. For example, the entering condition is Mn + Ocn - Hys > Ms+ Ocs + Off, and the leaving condition is Mn + Ocn + Hys < Ms + Ocs + Off.

Here, Mn is the reception quality of the neighboring cell, and Ocn is the cell-specific offset. Ms is the reception quality of the SCell, and Ocs is the cell-specific offset. Hys is a hysteresis parameter, and Off is a parameter used in Event A6.

As described above, in existing events, the entering conditions and leaving conditions are only defined for the reception quality on a cell-by-cell basis. In contrast, in embodiments, the trigger conditions used to determine whether to perform measurement reporting may include at least conditions regarding individual beams from neighboring cells. Specifically, the trigger conditions (conditions related to individual beams) used to determine whether to start measurement reporting may include the condition that the total number of beams observed as beams from neighboring cells exceeds a threshold value. The threshold that the total number of beams is compared to may be called numOfTriggerBeam. When counting the number of SS/PBCH Blocks (Synchronization Signal/Physical Broadcast Channel Blocks) as the number of beams, the above threshold may be called numOfTriggerSSB. When counting the number of CSI (Channel State Information)-RS (Reference Signals) as the number of beams, the above-mentioned threshold may be called numOfTriggerCSI-RS.

The threshold value (for example, numberOfTriggeringBeams) may be set for all neighboring cells, or may be set for one neighboring cell. Further, the process of comparing the total number of beams with a threshold value may be performed for neighboring cells triggered by the above-mentioned events (for example, Events A3, A4, A5, and A6).

The trigger condition may include a condition in which the number of neighboring cells observed by UE 200 exceeds a threshold. The threshold that is compared to the number of neighboring cells may be called numberOfTriggeringCells. UE 200 may initiate measurement reporting if the number of neighboring cells observed by UE 200 exceeds a threshold (eg, numberOfTriggeringCells). numberOfTriggeringCells may be used in conjunction with numberOfTriggeringBeams.

The trigger condition may include a condition that a certain period of time has elapsed since the measurement report was sent. The transmission of a measurement report may be prohibited until a timer started by the transmission of a measurement report expires. Such a timer may be called a ULInterferenceProhibitTimer. ULInterferenceProhibitTimer may be used in conjunction with numOfTriggerBeam.

(2) Functional block configuration of wireless communication system Next, the functional block configuration of the wireless communication system 10 will be explained. Specifically, the functional block configuration of UE 200 will be explained. FIG. 3 is a functional block configuration diagram of the gNB 100 and the UE 200.

As shown in FIG. 3, the UE 200 includes a radio signal transmission/reception section 210, an amplifier section 220, a modulation/demodulation section 230, a control signal/reference signal processing section 240, an encoding/decoding section 250, a data transmission/reception section 260, and a control section 270. .

It should be noted that in FIG. 3, only the main functional blocks related to the description of the embodiment are shown, and the UE 200 (gNB 100) has other functional blocks (for example, a power supply unit, etc.). Further, FIG. 3 shows the functional block configuration of the UE 200, and please refer to FIG. 7 for the hardware configuration.

The wireless signal transmitting/receiving unit 210 transmits and receives wireless signals according to NR. The radio signal transmitting/receiving unit 210 uses Massive MIMO, which generates a highly directional beam by controlling radio (RF) signals transmitted from multiple antenna elements, and a carrier that uses multiple component carriers (CC) in a bundle. It can support aggregation (CA) and dual connectivity (DC), which allows simultaneous communication between the UE and two NG-RAN nodes.

The amplifier section 220 is composed of a PA (Power Amplifier)/LNA (Low Noise Amplifier), etc. Amplifier section 220 amplifies the signal output from modulation/demodulation section 230 to a predetermined power level. Furthermore, the amplifier section 220 amplifies the RF signal output from the radio signal transmitting/receiving section 210.

The modulation/demodulation unit 230 performs data modulation/demodulation, transmission power setting, resource block allocation, etc. for each predetermined communication destination (gNB 100, etc.). The modulation/demodulation unit 230 may apply Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM)/Discrete Fourier Transform-Spread (DFT-S-OFDM). Furthermore, DFT-S-OFDM may be used not only for uplink (UL) but also for downlink (DL).

The control signal/reference signal processing unit 240 executes processing related to various control signals transmitted and received by the UE 200 and processing related to various reference signals transmitted and received by the UE 200.

Specifically, the control signal/reference signal processing unit 240 receives various control signals transmitted from the gNB 100 via a predetermined control channel, for example, a radio resource control layer (RRC) control signal. Furthermore, the control signal/reference signal processing unit 240 transmits various control signals to the gNB 100 via a predetermined control channel.

The control signal/reference signal processing unit 240 executes processing using reference signals (RS) such as Demodulation Reference Signal (DMRS) and Phase Tracking Reference Signal (PTRS).

DMRS is a known reference signal (pilot signal) between a terminal-specific base station and the terminal for estimating a fading channel used for data demodulation. PTRS is a terminal-specific reference signal for the purpose of estimating phase noise, which is a problem in high frequency bands.

In addition to DMRS and PTRS, the reference signal may include a Channel State Information-Reference Signal (CSI-RS), a Sounding Reference Signal (SRS), and a Positioning Reference Signal (PRS) for position information.

Further, the channels include a control channel and a data channel. Control channels include PDCCH (Physical Downlink Control Channel), PUCCH (Physical Uplink Control Channel), RACH (Random Access Channel, Downlink Control Information (DCI) including Random Access Radio Network Temporary Identifier (RA-RNTI)), and Physical Broadcast
Channel (PBCH) etc. may be included.

Additionally, data channels include PDSCH and PUSCH (Physical Uplink Shared Channel). Data may refer to data transmitted over a data channel.

Additionally, the control signal/reference signal processing unit 240 may transmit a measurement report including reception quality regarding cells including the serving cell and neighboring cells to the network. In this embodiment, the control signal/reference signal processing section 240 constitutes a transmitting section.

Specifically, the control signal/reference signal processing unit 240 generates a measurement report including the reception quality of cells and/or beams (RSRP: Reference Signal Received Power, RSRQ: Reference Signal Received Quality, SINR: Reference Signal Received Quality, etc.) may be sent to gNB100.

The control signal/reference signal processing unit 240 determines whether the number of cells that satisfy a triggering condition (for example, numberOfTriggeringCells) used to determine whether to execute a measurement report triggering procedure satisfies a cell number threshold If so, you may send a measurement report.

Note that the network can configure measurement reporting that causes the UE to report measurement results for each SS/PBCH Block (hereinafter referred to as measurement results). The network may configure measurement reporting that causes the UE to report measurement results for each SS/PBCH Block(s), and measurement reporting that causes the UE to report measurement results for each cell based on SS/PBCH Block(s). may be configured. The network may configure measurement reporting that causes the UE to report measurement results for each CSI-RS resource, or may configure measurement reporting that causes the UE to report measurement results for each cell based on the CSI-RS resource. .

The control signal/reference signal processing unit 240 may transmit the capability information of the UE 200 to the network. Specifically, the control signal/reference signal processing unit 240 can transmit UE Capability Information regarding the measurement report trigger condition to the gNB 100. In particular, in this embodiment, the control signal/reference signal processing unit 240 may transmit capability information indicating support for triggering conditions regarding beams (for example, numberOfTriggeringBeams) to the network.

The encoding/decoding unit 250 performs data division/concatenation, channel coding/decoding, etc. for each predetermined communication destination (gNB 100 or other gNB).

Specifically, the encoding/decoding unit 250 divides the data output from the data transmitting/receiving unit 260 into predetermined sizes, and performs channel coding on the divided data. Furthermore, the encoding/decoding section 250 decodes the data output from the modulation/demodulation section 230 and concatenates the decoded data.

The data transmitting and receiving unit 260 transmits and receives Protocol Data Units (PDUs) and Service Data Units (SDUs). Specifically, the data transceiver 260 transmits PDUs/SDUs in multiple layers (such as a medium access control layer (MAC), a radio link control layer (RLC), and a packet data convergence protocol layer (PDCP)). Assemble/disassemble etc. The data transmitting/receiving unit 260 also performs data error correction and retransmission control based on hybrid automatic repeat request (ARQ).

The control unit 270 controls each functional block that configures the UE 200. In particular, in this embodiment, the control unit 270 may periodically execute measurement reporting. The control unit 270 may perform measurement reporting for each event. Entering conditions for starting measurement reporting and leaving conditions for ending measurement reporting may be determined for each event.

Specifically, the control unit 270 starts measurement reporting when a trigger condition used to determine whether to start measurement reporting is satisfied. The above-described entering conditions for each event may be considered to be part of the trigger conditions. The control unit 270 ends Measurement reporting when a trigger condition used to determine whether to end Measurement reporting is satisfied. The above-described leaving conditions for each event may be considered to be part of the trigger conditions.

Here, the trigger conditions may include at least conditions regarding individual beams from neighboring cells. Specifically, the conditions regarding individual beams may include the condition that the total number of beams observed as beams from neighboring cells exceeds a threshold (eg, numberOfTriggeringBeams).

The trigger condition may include a condition in which the number of neighboring cells observed by the UE 200 exceeds a threshold (for example, numberOfTriggeringBeams). numberOfTriggeringBeams and numberOfTriggeringCells may be used together. In other words, trigger conditions related to individual beams from cells and trigger conditions related to cells may be used together.

The trigger condition may include a condition that a timer (ULInterferenceProhibitTimer) activated by transmission of a measurement report expires. In other words, measurement report transmission may be prohibited until the timer expires.

As described above, the control unit 270 may determine whether a trigger condition used to determine whether to execute a measurement report triggering procedure is satisfied. Specifically, the control unit 270 determines whether the trigger conditions for cells (numberOfTriggeringCells) and/or the trigger conditions for beams (numberOfTriggeringBeams) are satisfied based on the reception quality of cells and/or beams (RSRP/RSRQ). The determination may be made based on the number of cells and/or beams determined based on /SINR, etc.).

If the reception quality of the beam from the cell satisfies the quality threshold, the control unit 270 may determine that the cell (or beam) satisfies the triggering condition (numberOfTriggeringBeams).

The quality threshold may be a threshold related to at least one of a synchronization signal block (SSB) and a channel state information reference signal (CSI-RS). Specifically, the control unit 270 determines whether the number of beams whose beam quality (RSRP/RSRQ/SINR) is better than absThreshSS-BlocksConsolidation or absThreshCSI-RS-Consolidation (see 3GPP TS38.331) is greater than numberOfTriggeringBeams. You can judge. absThreshSS-BlocksConsolidation and absThreshCSI-RS-Consolidation may mean absolute values of SSB and CSI-RS quality thresholds, respectively.

Additionally, the gNB 100 (control signal/reference signal processing unit 240) may have a function of executing measurement settings for the UE 200 and receiving measurement reports from the UE 200. The gNB 100 may receive the capability information regarding the trigger condition of the measurement report transmitted from the UE 200, and perform measurement settings for the UE 200 based on the capability information.

(3) Operation of wireless communication system Next, the operation of the wireless communication system 10 will be explained. Specifically, when the UE is mounted on a UAV, the triggering conditions for cells (numberOfTriggeringCells) and/or the triggering conditions for beams (numberOfTriggeringBeams) are used to determine the execution of the measurement report triggering procedure. ) will be explained below.

(3.1) Premise As described above, numberOfTriggeringBeams is introduced in the wireless communication system 10, and numberOfTriggeringCells and numberOfTriggeringBeams can be used together.

UAVs such as drones have line-of-sight with many neighboring cells when flying in the air, so they may report excessive measurement reports, causing interference with UL transmissions from UEs on the ground. was. Therefore, in 3GPP Release 15, the concept of numberOfTriggeringCells was introduced. By applying numberOfTriggeringCells, a measurement report is triggered only when the number of neighboring cells that satisfy a specific event exceeds numberOfTriggeringCells. If the number of neighboring cells that satisfy a specific event does not exceed numberOfTriggeringCells, the measurement report will not be triggered, which has the effect of suppressing the transmission of the measurement report.

Furthermore, in the wireless communication system 10, numberOfTriggeringBeams may also be introduced in order to suppress interference through more precise control.

(3.2) Operation example 1
In the wireless communication system 10, numberOfTriggeringCells is introduced similarly to LTE in order to reduce the number of measurement reports of the UAV (hereinafter referred to as NR UAV) equipped with the UE 200. As a method of applying numberOfTriggeringCells, the UE includes cells(s) that satisfy a specific event in cellsTriggeredList, and if the number of cells(s) in cellsTriggeredList is greater than numberOfTriggeringCells, the UE executes a measurement report.

However, since numberOfTriggeringBeams has also been introduced, the problem is how to use numberOfTriggeringCells and numberOfTriggeringBeams at the same time.

FIG. 4 shows a flow related to trigger determination of a measurement report according to operation example 1. FIG. 5 shows an example of the configuration of cellsTriggeredList using numberOfTriggeringBeams.

As shown in FIGS. 4 and 5, when the UE executes the measurement report triggering procedure (which may also be referred to as the measurement reporting procedure), before including cells that have satisfied a specific event into the cellsTriggeredList, the UE A verification step is provided to check whether the number of beams with beam quality (RSRP/RSRQ/SINR) better than absThreshSS-BlocksConsolidation or absThreshCSI-RS-Consolidation in each cell is greater than the number of beams set by numberOfTriggeringBeams. good.

In other words, among cell(s) that satisfy a specific event, the number of beams with beam quality (RSRP/RSRQ/SINR) better than absThreshSS-BlocksConsolidation or absThreshCSI-RS-Consolidation is greater than numberOfTriggeringBeams ( s) may be included in cellTriggeredList. The UE may perform measurement reporting if the number of cells(s) in cellTriggeredList is greater than numberOfTriggeringCells.

In the example shown in FIG. 5, cell A and cell B are included in cellTriggeredList. Also, since numberOfTriggeringCells is "2", measurement reporting is triggered.

Such UE operations may be specified in 3GPP TS38.331 5.5.4 (Measurement report triggering) as follows.

(Foregoing omitted)
2> if the triggerType is set to event and if the corresponding reportConfig includes numberOfTriggeringCells, and if the entry condition applicable for this event, ie the event corresponding with the eventId of the corresponding reportConfig within VarMeasConfig, is fulfilled for one or more applicable cells for all measurements after layer 3 filtering taken during timeToTrigger defined for this event within the VarMeasConfig:
3> If the VarMeasReportList does not include a measurement reporting entry for this measId (a first cell triggers the event):
4> include a measurement reporting entry within the VarMeasReportList for this measId;
3> If the number of cell(s) in the cellsTriggeredList is larger than or equal to numberOfTriggeringCells:
4> include the concerned cell(s) where the number of beams whose beam quantity is higher than absThreshSS-BlocksConsolidation or absThreshCSI-RS-Consolidation is larger than numberOfTriggeredBeams in the cellsTriggeredList defined within the VarMeasReportList for this measId;
3> else:
4> include the concerned cell(s) where the number of beams whose beam quantity is higher than absThreshSS-BlocksConsolidation or absThreshCSI-RS-Consolidation is larger than numberOfTriggeredBeams in the cellsTriggeredList defined within the VarMeasReportList for this measId;
4> If the number of cell(s) in the cellsTriggeredList is larger than or equal to numberOfTriggeringCells:
5> set the numberOfReportsSent defined within the VarMeasReportList for this measId to 0;
5> initiate the measurement reporting procedure, as specified in 5.5.5;
(Omitted)

(3.3) Operation example 2
In this operation example, numberOfTriggeringBeams is used alone (numberOfTriggeringCells is not used).

Even when numberOfTriggeringBeams is used alone, the UE may operate generally in the same manner as in Operation Example 1. Specifically, when executing the Measurement report triggering procedure (which may also be called the measurement reporting procedure), the beam quality (RSRP/ A verification step may be provided to check whether the number of beams whose RSRQ/SINR) is better than absThreshSS-BlocksConsolidation or absThreshCSI-RS-Consolidation is greater than numberOfTriggeringBeams.

In other words, among cell(s) that satisfy a specific event, the number of beams with beam quality (RSRP/RSRQ/SINR) better than absThreshSS-BlocksConsolidation or absThreshCSI-RS-Consolidation is greater than numberOfTriggeringBeams ( s) in cellTriggeredList and execute measurement reporting. Here, since numberOfTriggeringBeams is used alone, the UE does not need to determine whether the number of cells(s) in cellTriggeredList is greater than numberOfTriggeringCells.

Such UE operations may be specified in 3GPP TS38.331 5.5.4 (Measurement report triggering) as follows.

(Foregoing omitted)
2> if the reportType is set to eventTriggered and if the entry condition applicable for this event, ie the event corresponding with the eventId of the corresponding reportConfig within VarMeasConfig, is fulfilled for one or more applicable cells for all measurements after layer 3 filtering taken during timeToTrigger defined for this event within the VarMeasConfig, while the VarMeasReportList does not include a measurement reporting entry for this measId (a first cell triggers the event):
3> include a measurement reporting entry within the VarMeasReportList for this measId;
3> set the numberOfReportsSent defined within the VarMeasReportList for this measId to 0;
3> include the concerned cell(s) where the number of beams whose beam quantity is higher than absThreshSS-BlocksConsolidation or absThreshCSI-RS-Consolidation is larger than numberOfTriggeredBeams in the cellsTriggeredList defined within the VarMeasReportList for this measId;
3> initiate the measurement reporting procedure, as specified in 5.5.5; 2> else if the reportType is set to eventTriggered and if the entry condition applicable for this event, ie the event corresponding with the eventId of the corresponding reportConfig within VarMeasConfig, is fulfilled for one or more applicable cells not included in the cellsTriggeredList for all measurements after layer 3 filtering taken during timeToTrigger defined for this event within the VarMeasConfig (a subsequent cell triggers the event):
3> set the numberOfReportsSent defined within the VarMeasReportList for this measId to 0;
3> include the concerned cell(s) where the number of beams whose beam quantity is higher than absThreshSS-BlocksConsolidation or absThreshCSI-RS-Consolidation is larger than numberOfTriggeredBeams in the cellsTriggeredList defined within the VarMeasReportList for this measId;
(Omitted)

(3.4) (Operation example 3)
In LTE, for a UE mounted on a UAV, multipleCellsMeasExtension is defined as UE capability information indicating that it supports numberOfTriggeringCells.

If numberOfTriggeringBeams is introduced, the network also needs to be able to know whether the UE supports numberOfTriggeringBeams or not.

It is also preferable that the network can also recognize whether the UE supports simultaneous use of numberOfTriggeringCells and numberOfTriggeringBeams.

FIG. 6 shows an example of a measurement report communication sequence according to operation example 3. As shown in FIG. 6, UE Capability Information including multipleBeamsMeasExtension indicating support for numberOfTriggeringBeams may be sent from the UE to the network.

Additionally, UE Capability Information including multipleCellsAndBeamsCombinedMeasExtension indicating that the combination of numberOfTriggeringBeams and numberOfTriggeringCells is supported may be transmitted from the UE to the network.

The network may determine the measurement configuration of the UE based on multipleBeamsMeasExtension and/or multipleCellsAndBeamsCombinedMeasExtension transmitted from the UE, and notify the UE as MeasConfig. The UE may perform cell and/or beam measurements based on the notified MeasConfig, and may report measurement results (MeasResults) to the network (Measurement report).

(4) Actions and Effects According to the embodiment described above, the following effects can be obtained. Specifically, when the reception quality of the beam from the cell satisfies the quality threshold, the UE 200 can determine that the cell (or the beam) satisfies the triggering condition (numberOfTriggeringBeams). Therefore, when an NR UAV is present, it is possible to utilize numberOfTriggeringBeams, which contributes to reducing the number of measurement reports in order to reduce UL interference.

In other words, the UE can perform an appropriate measurement report transmission procedure even when a triggering condition based on the number of beams (numberOfTriggeringBeams) is applied. Thereby, UL interference reduction between the NR UAV and other UEs (such as terrestrial UEs) can be achieved.

(5) Other Embodiments Although the content of this proposal has been explained above with reference to examples, it is to be understood that this proposal is not limited to these descriptions, and that various modifications and improvements are possible. It is self-evident to business operators.

For example, in the embodiment described above, it is assumed that the UE is mounted on a UAV, but the UE does not necessarily need to be mounted on a UAV. That is, similar operations may be applied if the UE is temporarily or permanently in a position with good line of sight.

In addition, in the above description, the words configure, activate, update, indicate, enable, specify, and select may be used interchangeably. good. Similarly, link, associate, correspond, and map may be used interchangeably; allocate, assign, and monitor. , map may also be read interchangeably.

Further, the terms "specific", "dedicated", "UE specific", and "UE individual" may be interchanged. Similarly, common, shared, group-common, UE-common, and UE-shared may be interchanged.

In this disclosure, "precoding", "precoder", "weight (precoding weight)", "quasi-co-location (QCL)", "Transmission Configuration Indication state (TCI state)", "spatial "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "number of layers", Terms such as "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angle", "antenna", "antenna element", and "panel" are interchangeable. can be used.

Furthermore, the block configuration diagram (FIG. 3) used to explain the embodiment described above shows blocks in functional units. These functional blocks (components) are realized by any combination of at least one of hardware and software. Furthermore, the method for realizing each functional block is not particularly limited. That is, each functional block may be realized using one physically or logically coupled device, or may be realized using two or more physically or logically separated devices directly or indirectly (e.g. , wired, wireless, etc.) and may be realized using a plurality of these devices. The functional block may be realized by combining software with the one device or the plurality of devices.

Functions include judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, exploration, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, consideration, These include, but are not limited to, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assigning. I can't do it. For example, a functional block (configuration unit) that performs transmission is called a transmitting unit or a transmitter. In either case, as described above, the implementation method is not particularly limited.

Furthermore, the gNB 100 and UE 200 (the devices) described above may function as a computer that performs processing of the wireless communication method of the present disclosure. FIG. 7 is a diagram showing an example of the hardware configuration of the device. As shown in FIG. 7, the device may be configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like.

Note that in the following description, the word "apparatus" can be read as a circuit, a device, a unit, etc. The hardware configuration of the device may include one or more of the devices shown in the figure, or may not include some of the devices.

Each functional block of the device (see FIG. 3) is realized by any hardware element of the computer device or a combination of hardware elements.

In addition, each function in the device is performed by loading predetermined software (programs) onto hardware such as the processor 1001 and memory 1002, so that the processor 1001 performs calculations, controls communication by the communication device 1004, and controls the memory This is realized by controlling at least one of data reading and writing in the storage 1002 and the storage 1003.

The processor 1001, for example, operates an operating system to control the entire computer. The processor 1001 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, registers, and the like.

Furthermore, the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and executes various processes according to these. As the program, a program that causes a computer to execute at least part of the operations described in the above embodiments is used. Further, the various processes described above may be executed by one processor 1001, or may be executed by two or more processors 1001 simultaneously or sequentially. Processor 1001 may be implemented by one or more chips. Note that the program may be transmitted from a network via a telecommunications line.

The memory 1002 is a computer-readable recording medium, and includes at least one of Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), Random Access Memory (RAM), etc. may be done. Memory 1002 may be called a register, cache, main memory, or the like. The memory 1002 can store programs (program codes), software modules, etc. that can execute a method according to an embodiment of the present disclosure.

The storage 1003 is a computer-readable recording medium, such as an optical disk such as a Compact Disc ROM (CD-ROM), a hard disk drive, a flexible disk, a magneto-optical disk (such as a compact disk, a digital versatile disk, or a Blu-ray disk). (registered trademark disk), smart card, flash memory (eg, card, stick, key drive), floppy disk, magnetic strip, etc. Storage 1003 may also be referred to as auxiliary storage. The above-mentioned recording medium may be, for example, a database including at least one of memory 1002 and storage 1003, a server, or other suitable medium.

The communication device 1004 is hardware (transmission/reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, network controller, network card, communication module, etc.

The communication device 1004 includes, for example, a high frequency switch, a duplexer, a filter, a frequency synthesizer, etc. to realize at least one of frequency division duplex (FDD) and time division duplex (TDD). It may be composed of.

The input device 1005 is an input device (eg, keyboard, mouse, microphone, switch, button, sensor, etc.) that accepts input from the outside. The output device 1006 is an output device (for example, a display, a speaker, an LED lamp, etc.) that performs output to the outside. Note that the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).

Further, each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or may be configured using different buses for each device.

Furthermore, the device includes 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). A part or all of each functional block may be realized by the hardware. For example, processor 1001 may be implemented using at least one of these hardwares.

Furthermore, the notification of information is not limited to the aspects/embodiments described in this disclosure, and may be performed using other methods. For example, information notification can be performed using physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), upper layer signaling (e.g., RRC signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB)), other signals, or a combination thereof. RRC signaling may also be referred to as RRC messages, such as RRC Connection Setup (RRC Connection Setup). ) message, RRC Connection Reconfiguration message, etc.

Each aspect/embodiment described in this disclosure includes Long Term Evolution (LTE), LTE-Advanced (LTE-A), 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) (x is an integer or decimal, for example), Future Radio Access (FRA), New Radio (NR), W-CDMA (registered trademark) , GSM®, CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi®), IEEE 802.16 (WiMAX®), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth ( (registered trademark), other appropriate systems, and next-generation systems expanded based on these. Furthermore, a combination of multiple systems (for example, a combination of at least one of LTE and LTE-A with 5G) may be applied.

The order of the processing procedures, sequences, flowcharts, etc. of each aspect/embodiment described in this disclosure may be changed as long as there is no contradiction. For example, the methods described in this disclosure use an example order to present elements of the various steps and are not limited to the particular order presented.

In some cases, the specific operations performed by the base station in this disclosure may be performed by its upper node. In a network consisting of one or more network nodes including a base station, various operations performed for communication with a terminal are performed by the base station and other network nodes other than the base station (e.g., MME or It is clear that this can be done by at least one of the following: (conceivable, but not limited to) S-GW, etc.). Although the case where there is one network node other than the base station is illustrated above, it may be a combination of multiple other network nodes (for example, MME and S-GW).

Information, signals (information, etc.) can be output from an upper layer (or lower layer) to a lower layer (or upper layer). It may be input/output via multiple network nodes.

The input/output information may be stored in a specific location (for example, memory) or may be managed using a management table. Information that is input and output may be overwritten, updated, or additionally written. The output information may be deleted. The input information may be sent to other devices.

Judgment may be made using a value expressed by 1 bit (0 or 1), a truth value (Boolean: true or false), or a comparison of numerical values (for example, a predetermined value). (comparison with a value).

Each aspect/embodiment described in this disclosure may be used alone, in combination, or may be switched and used in accordance with execution. In addition, notification of prescribed information (for example, notification of "X") is not limited to being done explicitly, but may also be done implicitly (for example, not notifying the prescribed information). Good too.

Software includes instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, whether referred to as software, firmware, middleware, microcode, hardware description language, or by any other name. , should be broadly construed to mean an application, software application, software package, routine, subroutine, object, executable, thread of execution, procedure, function, etc.

Additionally, software, instructions, information, etc. may be sent and received via a transmission medium. For example, if the software uses wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and/or wireless technology (infrared, microwave, etc.) to When transmitted from a server or other remote source, these wired and/or wireless technologies are included within the definition of transmission medium.

The information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of the foregoing. It may also be represented by a combination of

Note that terms explained in this disclosure and terms necessary for understanding this disclosure may be replaced with terms that have the same or similar meanings. For example, at least one of the channel and the symbol may be a signal. Also, the signal may be a message. Further, a component carrier (CC) may also be called a carrier frequency, cell, frequency carrier, etc.

As used in this disclosure, the terms "system" and "network" are used interchangeably.

In addition, the information, parameters, etc. described in this disclosure may be expressed using absolute values, relative values from a predetermined value, or using other corresponding information. may be expressed. For example, radio resources may be indicated by an index.

The names used for the parameters mentioned above are not restrictive in any respect. Furthermore, the mathematical formulas etc. using these parameters may differ from those explicitly disclosed in this disclosure. Since the various channels (e.g. PUCCH, PDCCH, etc.) and information elements can be identified by any suitable designation, the various names assigned to these various channels and information elements are in no way exclusive designations. isn't it.

In this disclosure, "base station (BS)", "wireless base station", "fixed station", "NodeB", "eNodeB (eNB)", "gNodeB (gNB)", " "access point", "transmission point", "reception point", "transmission/reception point", "cell", "sector", "cell group", " The terms "carrier", "component carrier", etc. may be used interchangeably. A base station is sometimes referred to by terms such as macrocell, small cell, femtocell, and picocell.

A base station can accommodate one or more (eg, three) cells (also called sectors). When a base station accommodates multiple cells, the entire coverage area of the base station can be partitioned into multiple smaller areas, each of which is divided into multiple smaller areas, each of which is connected to a base station subsystem (e.g., an indoor small base station (Remote Radio Communication services can also be provided using Head: RRH).

The term "cell" or "sector" refers to part or all of the coverage area of a base station and/or base station subsystem that provides communication services in this coverage.

In the present disclosure, the base station transmitting information to the terminal may be read as the base station instructing the terminal to control/operate based on the information.

In this disclosure, terms such as "Mobile Station (MS)," "user terminal," "User Equipment (UE)," and "terminal" may be used interchangeably. .

A mobile station is defined by a person skilled in the art 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 It may also be referred to as a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.

At least one of a base station and a mobile station may be called a transmitting device, a receiving device, a communication device, etc. Note that at least one of the base station and the mobile station may be a device mounted on a mobile body, the mobile body itself, or the like. The moving body refers to a movable object, and the moving speed is arbitrary. Naturally, this also includes cases where the moving object is stopped. The mobile objects include, for example, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, carts, rickshaws, ships and other watercraft. , including, but not limited to, airplanes, rockets, artificial satellites, drones (registered trademarks), multicopters, quadcopters, balloons, and objects mounted thereon. Furthermore, the mobile object may be a mobile object that autonomously travels based on a travel command. It may be a vehicle (e.g. car, airplane, etc.), an unmanned moving object (e.g. drone, self-driving car, etc.), or a robot (manned or unmanned). good. Note that at least one of the base station and the mobile station includes devices that do not necessarily move during communication operations. For example, at least one of the base station and the mobile station may be an IoT (Internet of Things) device such as a sensor.

Additionally, the base station in the present disclosure may be read as a mobile station (user terminal, hereinafter the same). For example, communication between a base station and a mobile station is replaced with communication between multiple mobile stations (for example, it may be called Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.). Regarding the configuration, each aspect/embodiment of the present disclosure may be applied. In this case, the mobile station may have the functions that the base station has. Further, words such as "up" and "down" may be replaced with words corresponding to inter-terminal communication (for example, "side"). For example, uplink channels, downlink channels, etc. may be replaced with side channels (or side links).

Similarly, the mobile station in the present disclosure may be read as a base station. In this case, the base station may have the functions that the mobile station has.

A radio frame may be composed of one or more frames in the time domain. Each frame or frames in the time domain may be called a subframe. A subframe may further be composed of one or more slots in the time domain. A subframe may have a fixed time length (eg, 1 ms) that does not depend on numerology.

The numerology may be a communication parameter applied to at least one of transmission and reception of a certain signal or channel. Numerology includes, for example, subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame configuration, transmission and reception. It may also indicate at least one of a specific filtering process performed by the device in the frequency domain, a specific windowing process performed by the transceiver in the time domain, etc.

A slot may be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.) in the time domain. A slot may be a unit of time based on numerology.

A slot may include multiple mini-slots. Each minislot may be made up of one or more symbols in the time domain. Furthermore, a mini-slot may also be called a sub-slot. A minislot may be made up of fewer symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a minislot may be referred to as a PDSCH (or PUSCH) mapping type A. PDSCH (or PUSCH) transmitted using minislots may be referred to as PDSCH (or PUSCH) mapping type B.

Radio frames, subframes, slots, minislots, and symbols all represent time units when transmitting signals. Other names may be used for the radio frame, subframe, slot, minislot, and symbol.

For example, one subframe may be called a transmission time interval (TTI), multiple consecutive subframes may be called a TTI, and one slot or minislot may be called a TTI. In other words, at least one of the subframe and TTI may be a subframe (1ms) in existing LTE, a period shorter than 1ms (for example, 1-13 symbols), or a period longer than 1ms. It may be. Note that the unit representing TTI may be called a slot, minislot, etc. instead of a subframe.

Here, TTI refers to, for example, the minimum time unit for scheduling in wireless communication. For example, in an LTE system, a base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used by each user terminal) to each user terminal on a TTI basis. Note that the definition of TTI is not limited to this.

The TTI may be a unit of transmission time such as a channel-coded data packet (transport block), a code block, or a codeword, or may be a unit of processing such as scheduling or link adaptation. Note that when a TTI is given, the time interval (for example, the number of symbols) to which transport blocks, code blocks, code words, etc. are actually mapped may be shorter than the TTI.

Note that when one slot or one minislot is called a TTI, one or more TTIs (that is, one or more slots or one or more minislots) may be the minimum time unit for scheduling. Further, the number of slots (minislot number) that constitutes the minimum time unit of the scheduling may be controlled.

A TTI with a time length of 1 ms may be called a normal TTI (TTI in LTE Rel. 8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, etc. A TTI that is shorter than the normal TTI may be referred to as a shortened TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, etc.

Note that long TTI (e.g., normal TTI, subframe, etc.) may be read as TTI with a time length exceeding 1ms, and short TTI (e.g., shortened TTI, etc.) may be interpreted as TTI with a time length of less than the long TTI and 1ms. It may also be read as a TTI having a TTI length of the above length.

A resource block (RB) is a resource allocation unit in the time domain and frequency domain, and may include one or more continuous subcarriers in the frequency domain.

The number of subcarriers included in the RB may be the same regardless of the newerology, and may be 12, for example. The number of subcarriers included in an RB may be determined based on newerology.

Additionally, the time domain of an RB may include one or more symbols and may be one slot, one minislot, one subframe, or one TTI in length. One TTI, one subframe, etc. may each be composed of one or more resource blocks.

Note that one or more RBs are classified into physical resource blocks (Physical RBs: PRBs), sub-carrier groups (Sub-Carrier Groups: SCGs), resource element groups (Resource Element Groups: REGs), PRB pairs, RB pairs, etc. May be called.

Additionally, a resource block may be configured by one or more resource elements (RE). For example, 1 RE may be a radio resource region of 1 subcarrier and 1 symbol.

Bandwidth Part (BWP) (also called partial bandwidth, etc.) refers to a subset of contiguous common resource blocks for a certain numerology in a certain carrier. good. Here, the common RB may be specified by an RB index based on a common reference point of the carrier. PRBs may be defined in a BWP and numbered within that BWP.

BWP may include BWP for UL (UL BWP) and BWP for DL (DL BWP). One or more BWPs may be configured within one carrier for the UE.

At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal/channel outside the active BWP. Note that "cell", "carrier", etc. in the present disclosure may be replaced with "BWP".

The structures of radio frames, subframes, slots, minislots, symbols, etc. described above are merely examples. For example, the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included within a slot, the number of symbols and RBs included in a slot or minislot, the number of symbols included in an RB, The number of subcarriers, the number of symbols within a TTI, the symbol length, the cyclic prefix (CP) length, and other configurations can be changed in various ways.

The terms "connected", "coupled", or any variations thereof, refer to any connection or coupling, direct or indirect, between two or more elements and to each other. It can include the presence of one or more intermediate elements between two elements that are "connected" or "coupled." The bonds or connections between elements may be physical, logical, or a combination thereof. For example, "connection" may be replaced with "access." As used in this disclosure, two elements may include one or more electrical wires, cables, and/or printed electrical connections, as well as in the radio frequency domain, as some non-limiting and non-inclusive examples. , electromagnetic energy having wavelengths in the microwave and optical (both visible and non-visible) ranges, and the like.

The reference signal can also be abbreviated as Reference Signal (RS), and may be called a pilot depending on the applied standard.

As used in this disclosure, the phrase "based on" does not mean "based solely on" unless explicitly stated otherwise. In other words, the phrase "based on" means both "based only on" and "based at least on."

"Means" in the configurations of each of the above devices may be replaced with "unit", "circuit", "device", etc.

As used in this disclosure, any reference to elements using the designations "first," "second," etc. does not generally limit the amount or order of those elements. These designations may be used in this disclosure as a convenient way to distinguish between two or more elements. Thus, reference to a first and second element does not imply that only two elements may be employed therein or that the first element must precede the second element in any way.

Where "include", "including" and variations thereof are used in this disclosure, these terms, like the term "comprising," are inclusive. It is intended that Furthermore, the term "or" as used in this disclosure is not intended to be exclusive or.

In the present disclosure, when articles are added by translation, such as a, an, and the in English, the present disclosure may include that the nouns following these articles are plural.

As used in this disclosure, the terms "determining" and "determining" may encompass a wide variety of operations. "Judgment" and "decision" include, for example, judging, calculating, computing, processing, deriving, investigating, looking up, search, and inquiry. (e.g., searching in a table, database, or other data structure); In addition, "judgment" and "decision" refer to receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, and access. (accessing) (for example, accessing data in memory) may be considered to be a "judgment" or "decision." In addition, "judgment" and "decision" refer to resolving, selecting, choosing, establishing, comparing, etc. may be included. In other words, "judgment" and "decision" may include regarding some action as "judgment" and "decision." Further, "judgment (decision)" may be read as "assuming", "expecting", "considering", etc.

In the present disclosure, the term "A and B are different" may mean that "A and B are different from each other." Note that the term may also mean that "A and B are each different from C". Terms such as "separate" and "coupled" may also be interpreted similarly to "different."

FIG. 8 shows an example of the configuration of the vehicle 2001. As shown in FIG. 8, the vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, an axle 2009, an electronic control unit 2010, Equipped with various sensors 2021 to 2029, an information service section 2012, and a communication module 2013.

The drive unit 2002 is composed of, for example, an engine, a motor, or a hybrid of an engine and a motor.

The steering unit 2003 includes at least a steering wheel (also referred to as a steering wheel), and is configured to steer at least one of the front wheels and the rear wheels based on the operation of the steering wheel operated by the user.

The electronic control unit 2010 is composed of a microprocessor 2031, memory (ROM, RAM) 2032, and communication port (IO port) 2033. Signals from various sensors 2021 to 2027 provided in the vehicle are input to the electronic control unit 2010. The electronic control unit 2010 may also be called an ECU (Electronic Control Unit).

Signals from various sensors 2021 to 2028 include current signals from current sensor 2021 that senses motor current, front and rear wheel rotation speed signals obtained by rotation speed sensor 2022, and front wheel rotation speed signals obtained by air pressure sensor 2023. and rear wheel air pressure signal, vehicle speed signal acquired by vehicle speed sensor 2024, acceleration signal acquired by acceleration sensor 2025, accelerator pedal depression amount signal acquired by accelerator pedal sensor 2029, and brake pedal sensor 2026. These include a brake pedal depression amount signal, a shift lever operation signal acquired by the shift lever sensor 2027, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. acquired by the object detection sensor 2028.

The Information Service Department 2012 provides various devices such as car navigation systems, audio systems, speakers, televisions, and radios that provide (output) various information such as driving information, traffic information, and entertainment information, and controls these devices. Consists of one or more ECUs. The information service unit 2012 provides various multimedia information and multimedia services to the occupants of the vehicle 1 using information acquired from an external device via the communication module 2013 and the like.

The information service department 2012 may include an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, a touch panel, etc.) that accepts input from the outside, and an output device that performs output to the outside (for example, (display, speaker, LED lamp, touch panel, etc.).

The driving support system unit 2030 includes millimeter wave radar, LiDAR (Light Detection and Ranging), cameras, positioning locators (e.g. GNSS, etc.), map information (e.g. high definition (HD) maps, autonomous vehicle (AV) maps, etc.) ), gyro systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System), etc.), AI (Artificial Intelligence) chips, and AI processors that prevent accidents and reduce the driver's driving burden. It consists of various devices that provide functions for the purpose and one or more ECUs that control these devices. Further, the driving support system unit 2030 transmits and receives various information via the communication module 2013, and realizes a driving support function or an automatic driving function.

The communication module 2013 can communicate with the microprocessor 2031 and the components of the vehicle 1 via the communication port. For example, the communication module 2013 communicates with the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, which are included in the vehicle 2001, through the communication port 2033. Data is transmitted and received between the axle 2009, the microprocessor 2031 and memory (ROM, RAM) 2032 in the electronic control unit 2010, and the sensors 2021 to 2028.

The communication module 2013 is a communication device that can be controlled by the microprocessor 2031 of the electronic control unit 2010 and can communicate with external devices. For example, various information is transmitted and received with an external device via wireless communication. Communication module 2013 may be located either inside or outside electronic control unit 2010. The external device may be, for example, a base station, a mobile station, or the like.

The communication module 2013 receives signals from the above-mentioned various sensors 2021 to 2028 that are input to the electronic control unit 2010, information obtained based on the signals, and input from the outside (user) obtained via the information service unit 2012. At least one of the information based on the information may be transmitted to an external device via wireless communication. The electronic control unit 2010, various sensors 2021 to 2028, information service unit 2012, etc. may be called an input unit that receives input. For example, the PUSCH transmitted by the communication module 2013 may include information based on the above input.

The communication module 2013 receives various information (traffic information, signal information, inter-vehicle information, etc.) transmitted from external devices, and displays it on the information service section 2012 provided in the vehicle. The information service unit 2012 is an output unit that outputs information (for example, outputs information to devices such as a display and a speaker based on the PDSCH (or data/information decoded from the PDSCH) received by the communication module 2013). may be called. Communication module 2013 also stores various information received from external devices into memory 2032 that can be used by microprocessor 2031. Based on the information stored in the memory 2032, the microprocessor 2031 controls the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, left and right front wheels 2007, and left and right rear wheels provided in the vehicle 2001. 2008, axle 2009, sensors 2021 to 2028, etc. may be controlled.

(Additional note)
The above disclosure may be expressed as follows.

The first feature is a transmitting unit that transmits a measurement report including reception quality regarding cells including a serving cell and neighboring cells to the network;
a control unit that determines whether a trigger condition used to determine whether to execute the procedure for transmitting the measurement report is satisfied;
The control unit determines that the cell satisfies the trigger condition when the reception quality of the beam from the cell satisfies the quality threshold.

A second feature is that in the first feature, the transmitter transmits the measurement report when the number of cells that satisfy the trigger condition satisfies a cell number threshold.

A third feature is that in the first or second feature, the quality threshold is a threshold related to at least one of a synchronization signal block and a channel state information reference signal.

A fourth feature is that in the first to third features, the trigger condition regarding the individual beam from the cell and the trigger condition regarding the cell are used together.

A fifth feature is that in the first to fourth features, the transmitter transmits capability information indicating support for the trigger condition regarding the beam to the network.

A sixth feature is that the terminal transmits to the network a measurement report including reception quality regarding cells including the serving cell and neighboring cells;
The terminal determines whether a trigger condition used to determine whether to execute the procedure for transmitting the measurement report is satisfied.
In the determining step, if the reception quality of the beam from the cell satisfies a quality threshold, the wireless communication method determines that the cell satisfies the trigger condition.

Although the present disclosure has been described in detail above, it is clear for those skilled in the art that the present disclosure is not limited to the embodiments described in the present disclosure. The present disclosure can be implemented as modifications and variations without departing from the spirit and scope of the present disclosure as determined by the claims. Therefore, the description of the present disclosure is for the purpose of illustrative explanation and is not intended to have any limiting meaning on the present disclosure.

10 Wireless communication system 20 NG-RAN
100, 100A~100D gNB
200 U.E.
210 Wireless signal transmission/reception unit 220 Amplifier unit 230 Modulation/demodulation unit 240 Control signal/reference signal processing unit 250 Encoding/decoding unit 260 Data transmission/reception unit 270 Control unit 1001 Processor 1002 Memory 1003 Storage 1004 Communication device 1005 Input device 1006 Output device 1007 Bus 2001 Vehicle 2002 Drive unit 2003 Steering unit 2004 Accelerator pedal 2005 Brake pedal 2006 Shift lever 2007 Left and right front wheels 2008 Left and right rear wheels 2009 Axle 2010 Electronic control unit 2012 Information service department 2013 Communication module 2021 Current sensor 2022 Rotational speed sensor 2023 Air pressure sensor 2024 Vehicle speed Sensor 2025 Acceleration sensor 2026 Brake pedal sensor 2027 Shift lever sensor 2028 Object detection sensor 2029 Accelerator pedal sensor 2030 Driving support system section 2031 Microprocessor 2032 Memory (ROM, RAM)
2033 communication port

Claims (6)

1. a transmitting unit that transmits a measurement report including reception quality regarding cells including the serving cell and neighboring cells to the network;
   a control unit that determines whether a trigger condition used to determine whether to execute the procedure for transmitting the measurement report is satisfied;
   The control unit determines that the cell satisfies the trigger condition when the reception quality of the beam from the cell satisfies the quality threshold.
2. The terminal according to claim 1, wherein the transmitter transmits the measurement report when the number of cells satisfying the trigger condition satisfies a cell number threshold.
3. The terminal according to claim 1, wherein the quality threshold is a threshold related to at least one of a synchronization signal block and a channel state information reference signal.
4. The terminal according to claim 1, wherein the trigger condition for individual beams from the cell and the trigger condition for the cell are used together.
5. The terminal according to claim 1, wherein the transmitter transmits capability information indicating support for the trigger condition regarding the beam to the network.
6. the terminal transmitting a measurement report including reception quality for cells including the serving cell and neighboring cells to the network;
   The terminal determines whether a trigger condition used to determine whether to execute the procedure for transmitting the measurement report is satisfied.
   In the determining step, if the reception quality of the beam from the cell satisfies a quality threshold, the wireless communication method determines that the cell satisfies the trigger condition.

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