Device, wireless communication device, and communication method

Abstract

This device, which has a lower complexity than a narrow band internet of things (NB-IoT) device, comprises a control unit that generates transmission / reception-related information pertaining to energy for PDRCH transmission or PRDCH reception, and a transmission unit that transmits the transmission / reception-related information.

Description

Device, wireless communication apparatus and communication method

[0001] The present disclosure relates to a device, a wireless communication apparatus, and a communication method.

[0002] For NR (New Radio) (also called "5G"), the successor system to LTE (Long Term Evolution), technologies are being considered that meet the requirements of a large-capacity system, high-speed data transmission speed, low latency, simultaneous connection of a large number of terminals, low cost, low power consumption, etc. (see, for example, Non-Patent Document 1).

[0003] Furthermore, in Release 18 (Rel-18) of 3GPP (registered trademark), ambient IoT (A-IoT: Ambient Internet of Things) is being considered (see, for example, Non-Patent Document 2). Ambient IoT targets devices with extremely simple configurations for low-end IoT applications that operate with extremely low power consumption.

[0004] 3GPP TS 38.300 V17.3.0 (2022-12)”Revised SID on Ambient IoT”, RP-232404, 3GPP TSG RAN Meeting #101, September 20233GPP TR 38.848 V1.0.0 (2023-09)3GPP TS 36.211 V16.8.0 (2023-09)”Study on solutions for Ambient IoT (Internet of Things) in NR”, RP-234058, 3GPP TSG RAN Meeting #102, December 2023

[0005] Since an A-IoT UE that is charged by an RF signal received from a reader may become unusable while charging, it is preferable for the UE to report its status, etc. to the reader in advance.

[0006] The details of the reports that the A-IoT UE will make and the control of the reports, such as the timing of the reports, have not yet been determined. If the A-IoT UE cannot properly control the reports, the leader will not be able to properly schedule them.

[0007] One aspect of the present disclosure provides a device, a wireless communication apparatus, and a communication method that allow a leader to appropriately perform scheduling.

[0008] A device having lower complexity than an NB-IoT (Narrow Band Internet of Things) device according to one aspect of the present disclosure includes a control unit that generates transmission / reception related information related to energy for transmitting a PDRCH or receiving a PRDCH, and a transmission unit that transmits the transmission / reception related information.

[0009] 1 is a diagram illustrating an example of a wireless communication system according to an embodiment of the present disclosure. FIG. 1 is a diagram illustrating Topology 1. FIG. 2 is a diagram illustrating Topology 3 in DL assistance. FIG. 3 is a diagram illustrating Topology 4 in UL assistance. FIG. 4 is a diagram illustrating backscatter transmission. FIG. 5 is a diagram illustrating an example of a candidate topology for CW / R2D / D2R transmission in Topology 1. FIG. 6 is a diagram illustrating an example of a candidate topology for CW / R2D / D2R transmission in Topology 2. FIG. 7 is a diagram illustrating a time window for D2R corresponding to R2D. FIG. 8 is a diagram illustrating an example of value X according to proposal 1 of an embodiment of the present disclosure. FIG. 9 is a diagram illustrating an example of a period during which transmission and reception are possible and a period during which transmission and reception are not possible according to proposal 1 of an embodiment of the present disclosure. FIG. 10 is a diagram illustrating an example of a starting point according to proposal 1 of an embodiment of the present disclosure. FIG. 11 is a diagram illustrating an example of value W according to proposal 1 of an embodiment of the present disclosure. FIG. 12 is a block diagram illustrating an example of a configuration of a base station according to an embodiment of the present disclosure. FIG. 13 is a block diagram illustrating an example of a configuration of a device according to an embodiment of the present disclosure. FIG. 14 is a diagram illustrating an example of the hardware configuration of a base station and a device according to an embodiment of the present disclosure. FIG. 15 is a diagram illustrating an example of a configuration of a vehicle according to an embodiment of the present disclosure.

[0010] Hereinafter, an embodiment according to one aspect of the present disclosure will be described with reference to the drawings. Note that the embodiment described below is an example, and the embodiment to which the present disclosure is applied is not limited to the following embodiment.

[0011] In the operation of the wireless communication system according to the embodiment of the present disclosure, existing technology is used as appropriate. The existing technology is, for example, the existing LTE or NR, but is not limited to the existing LTE or NR. In addition, the term "LTE" used in this specification has a broad meaning including LTE-Advanced and systems subsequent to LTE-Advanced, unless otherwise specified.

[0012] In addition, in the embodiments of the present disclosure described below, terms such as SS (synchronization signal), PSS (primary SS), SSS (secondary SS), PBCH (physical broadcast channel), PRACH (physical random access channel), PDCCH (physical downlink control channel), PDSCH (physical downlink shared channel), PUCCH (physical uplink control channel), and PUSCH (physical uplink shared channel) used in existing LTE are used. This is for convenience of description, and similar signals, functions, etc. may be referred to by other names. Furthermore, the above-mentioned terms in NR correspond to NR-SS, NR-PSS, NR-SSS, NR-PBCH, NR-PRACH, etc. However, even signals used in NR are not necessarily designated as "NR-".

[0013] Furthermore, in the embodiments of the present disclosure, the duplex method may be a time division duplex (TDD) method, a frequency division duplex (FDD) method, or another method (for example, flexible duplex, etc.).

[0014] Furthermore, in the embodiments of the present disclosure, "configuring" radio parameters, etc. may mean that predetermined values ​​are pre-configured, or that radio parameters notified from a base station, a device, a terminal, etc. are set.

[0015] (Embodiment) <Wireless Communication System> FIG. 1 is a diagram illustrating an example of a wireless communication system according to an embodiment of the present disclosure. As illustrated in FIG. 1, the wireless communication system 1 includes a base station 10 and a device 20. While FIG. 1 illustrates one base station 10 and one device 20, this is merely an example, and multiple base stations and devices may exist. The base station may also be referred to as a BS (Base Station), gNB, or the like. The device 20 may be a form of terminal (UE: User Equipment) and may be an ambient IoT device, which is a device with lower complexity than an NB-IoT (Narrow Band Internet of Things) device. The ambient IoT device may also be referred to as an ambient IoT terminal, ambient IoT UE, or the like.

[0016] The base station 10 is a communication device that provides one or more cells and performs wireless communication with the device 20. The physical resources of a wireless signal are defined in the time domain and the frequency domain. The time domain may be defined by the number of Orthogonal Frequency Division Multiplexing (OFDM) symbols. The frequency domain may be defined by the number of subcarriers or the number of resource blocks (RBs).

[0017] The base station 10 transmits DL signals such as control information, setting information, and data via DL (Downlink) to the device 20. The base station 10 receives UL signals such as control information, information related to the processing capability of the device 20 (device capability (information) or A-IoT capability (information); for example, capability, device capability, A-IoT capability, A-IoT device capability, etc.), and data via UP (Uplink) from the device 20.

[0018] Channels used for transmitting DL signals include, for example, data channels and control channels. For example, the data channel may include a physical downlink shared channel (PDSCH), and the control channel may include a physical downlink control channel (PDCCH). For example, the base station 10 transmits control information to the device 20 using the PDCCH, and transmits DL data signals using the PDSCH. Note that the PDSCH is an example of a downlink shared channel or a data channel, and the PDCCH is an example of a downlink control channel. The PDCCH may be interpreted as downlink control information (DCI), control information, etc. transmitted in the PDCCH.

[0019] As will be described later, the wireless communication system may include intermediate nodes, assisting nodes, and / or terminals (UEs) (see <Device Types and Topologies> below). Note that, hereinafter, "and / or" may be written simply as " / ".

[0020] The device 20 is a communication device equipped with a wireless communication function, and may be an ambient IoT device (e.g., a sensor, etc.) as described above. Hereinafter, the ambient IoT device will also be referred to as an A-IoT UE.

[0021] The device 20 receives DL signals such as control signals, setting information, and data from the base station 10 via DL, and transmits UL signals such as control signals, capability information of the device 20, and data to the base station 10 via UL.

[0022] Channels used for transmitting UL signals include, for example, data channels and control channels. For example, the data channel may include a physical uplink shared channel (PUSCH), and the control channel may include a physical uplink control channel (PUCCH). For example, the device 20 transmits control information using the PUCCH and transmits UL data signals using the PUSCH. Note that the PUSCH is an example of an uplink shared channel or a data channel, and the PUCCH is an example of an uplink control channel. Note that the PUSCH or the PUCCH may be interpreted as uplink control information (UCI), control information, etc. transmitted in the PUSCH or the PUCCH.

[0023] <Ambient IoT> Rel-18 approved the study of ambient IoT, which is even lower-end than the existing NB-IoT (see, for example, Section 10 of Non-Patent Document 4) (see, for example, Non-Patent Document 2). Ambient IoT targets ultra-low power consumption and ultra-low complexity devices.

[0024] For Ambient IoT, for example, the following deployment scenarios and characteristics can be considered for relevant use cases: Indoor or outdoor environment; Base station type, for example, macro / micro / pico cell-based deployment; Connectivity topology, for example, which nodes, such as base stations, terminals (UE), relays, and repeaters, communicate with Ambient IoT devices; Duplexing method, TDD or FDD, and frequency band, licensed or unlicensed; Coexistence with UE and network equipment in frequency bands for existing 3GPP technologies; Assumptions of traffic originating from / terminating at devices.

[0025] Based on the above deployment scenarios and characteristics, for example, the following RAN design targets can be formulated: power consumption, complexity, coverage, data rate, and positioning accuracy.

[0026] Based on deployment scenarios appropriate for the relevant use cases, compare and evaluate the feasibility of meeting design targets and identify supporting features.

[0027] <Device Types and Topologies> Based on the results of the study items, TR 38.848 (Non-Patent Document 3) was approved. TR 38.848 considers the following categories of ambient IoT devices: Device A: Device A has no power (energy) storage, no independent signal generation or signal amplification functions, and performs backscattering transmission. Device B: Device B has power storage, no independent signal generation function, and performs backscattering transmission. Device B uses the stored power to amplify the reflected signal. Device C: Device C has power storage, independent signal generation function, and an active RF (radio frequency) component for transmission.

[0028] The complexity of device A is assumed to be about the same as RFID (Frequency Frequency Identification).

[0029] TR 38.848 defines the following topologies 1 to 4 in an ambient IoT network.

[0030] Fig. 2 is a diagram illustrating Topology 1. As shown in Fig. 2, Topology 1 is a configuration in which a base station (BS) and an ambient IoT device communicate with each other. The ambient IoT device directly communicates with the base station in a two-way manner.

[0031] 3 is a diagram illustrating Topology 2. As shown in FIG. 3, Topology 2 is a configuration in which a base station and an ambient IoT device communicate with each other via an intermediate node. The ambient IoT device performs bidirectional communication with the intermediate node located between the base station and the ambient IoT device. The intermediate node may be, for example, a relay, an integrated access and backhaul (IAB) node, a UE, a repeater, or the like.

[0032] 4 is a diagram illustrating Topology 3 in DL assistance. As shown in FIG. 4, Topology 3 is a configuration including communication between a base station and an assisting node, communication between the assisting node and an ambient IoT device, and communication between the ambient IoT device and a base station.

[0033] The support node supports DL communication. For example, as shown in Figure 4, the support node receives DL signals from the base station and transmits the received DL signals to the ambient IoT device. For UL communication, the ambient IoT device transmits UL signals directly to the base station.

[0034] Fig. 5 is a diagram illustrating Topology 3 in UL support. As shown in Fig. 5, Topology 3 is a configuration including communication between a base station and a support node, communication between a support node and an ambient IoT device, and communication between the ambient IoT device and a base station.

[0035] The support node supports UL communication. For example, as shown in Figure 5, the support node receives UL signals from the ambient IoT device and transmits the received UL signals to the base station. For DL ​​communication, the ambient IoT device receives DL signals directly from the base station.

[0036] The supporting nodes shown in FIGS. 4 and 5 may be, for example, relays, IAB nodes, UEs, repeaters, etc.

[0037] 6 is a diagram illustrating Topology 4. Topology 4 is a configuration in which a UE and an ambient IoT device communicate with each other. The ambient IoT device performs bidirectional communication with the UE. Communication related to Topology 4 may be considered as side link (SL) communication.

[0038] In the above topologies 1 to 4, the ambient IoT device may be provided with a carrier wave from another node inside or outside the topology (see Section 4.2.1 of Non-Patent Document 3).

[0039] The wireless communication system 1 (wireless communication network) may include a base station, a support node, an intermediate node, and / or a terminal (UE of Topology 4) in addition to the device 20. In this specification, the base station, the support node, the intermediate node, and the terminal may be read as a network or a (network) node. Also, an A-IoT device may be simply referred to as A-IoT.

[0040] Backscatter Transmission Base stations, intermediate nodes, support nodes, and other nodes transmit RF signals to ambient IoT devices that are activated and obtain power from the RF operating fields from the base stations, intermediate nodes, support nodes, and other nodes via inductive coupling.

[0041] The ambient IoT device backscatters and modulates the RF signals received from the base station, intermediate node, support node, and other nodes by switching the reflection coefficient of the device's antenna, and transmits information to the base station, intermediate node, support node, and other nodes.

[0042] FIG. 7 is a diagram illustrating backscatter transmission. FIG. 7 shows an example in which an ambient IoT device performs ON-OFF keying and transmits information. The dashed line area shown in FIG. 7 indicates an OFF section, which may correspond to information (bit) "0." A sine wave signal may correspond to information "1."

[0043] <Rel-19 SID> The Rel-19 SID (Study Item Description) examined solutions necessary and feasible for A-IoT (see Section 4.1 of Non-Patent Document 5). The examined solutions include, for example, determining which functions, procedures, etc. are necessary and which functions, procedures, etc. are not.

[0044] Additionally, for the DL and UL of A-IoT, several issues will be discussed under the leadership of RAN 1. One of the issues to be discussed is the scheduling and timing relationship between DL and UL in A-IoT. In discussing the scheduling and timing relationship, the following 1. traffic flow, 2. device assumptions, and 3. topology may be considered.

[0045] 1. Traffic Flow The following DT and DO-DTT are being considered as traffic flows for A-IoT.

[0046] DT (device terminated) Traffic includes transmission (DL) to the A-IoT UE, but no transmission (UL) from the A-IoT UE. In other words, there is information to be transmitted to the A-IoT UE, but no information to be transmitted from the A-IoT UE. DT corresponds to a command type in which there is an instruction such as a command or instruction to the A-IoT UE.

[0047] DO-DTT (device originated - device terminated triggered) Traffic includes a trigger from the network (NW) and a transmission (UL) from the A-IoT UE. In other words, traffic includes information transmitted from the A-IoT UE. DO-DTT corresponds to, for example, a sensor information report type in which the A-IoT UE transmits sensor information collected by the A-IoT UE.

[0048] In this disclosure, transmission of information corresponds to transmission of a signal containing information or transmission of a signal. In this disclosure, transmission to a certain device X corresponds to transmission of a signal (or information) to device X. In addition, transmission from a certain device X and transmission by a certain device X correspond to device X transmitting a signal (or information). In addition, reception from a certain device X corresponds to receiving a signal (or information) transmitted by device X. In addition, reception by a certain device X corresponds to device X receiving a signal (or information).

[0049] 2. Device Assumptions The following TX (transmission) and FR (frequency range) 1-FDD are assumed for A-IoT UE.

[0050] TX TX is a backscatter UL transmission without amplification or a general amplified UL transmission. Alternatively, an amplified backscatter UL transmission may be performed.

[0051] FR1-FDD FR1-FDD is applied to the A-IoT UE. That is, the A-IoT UE can switch carrier frequencies between DL carriers and UL carriers. However, the present disclosure is not limited to FR1-FDD and may be applied to TDD, FR2, or FR3.

[0052] The frequency bands of each FR are, for example, as follows: FR1: 410 MHz to 7.125 GHz FR2: 24.25 GHz to 52.6 GHz FR3: 7.125 GHz to 24.25 GHz

[0053] FR1 may use a sub-carrier spacing (SCS) of 15 kHz, 30 kHz, or 60 kHz, and a bandwidth (BW) of 5 to 100 MHz. FR2 is a higher frequency than FR1, and may use an SCS of 60 kHz or 120 kHz (including 240 kHz), and a bandwidth (BW) of 50 to 400 MHz.

[0054] 3. Topology Among the topologies shown in FIGS. 2 to 6, attention is focused on Topology 1 and Topology 2.

[0055] In Topology 1, UL and / or DL ​​communication is performed between a base station and an A-IoT UE without passing through an intermediate node. Note that the base station in Topology 1 may correspond to a microcell.

[0056] In Topology 2, communication is performed between a base station and an A-IoT UE via an intermediate node. The A-IoT UE performs bidirectional communication with an intermediate node located between the base station and the A-IoT UE. Note that the base station in the case of Topology 2 may correspond to a macrocell. The case of Topology 2 may also be applied to indoor cases. Hereinafter, the intermediate node will also be referred to as an intermediate UE, int. UE (intermediate UE), etc.

[0057] <Device Types> The following three device types, Device 1, Device 2a, and Device 2b, are defined for A-IoT devices.

[0058] Device 1 (may be referred to as Type 1) Device 1 is a device type that consumes a peak power of 1 μW or less. Device 1 has energy storage and an initial sampling frequency offset (SFO) of up to Z ppm (parts per million) (Z is 10 to the xth power (x is an integer equal to or greater than 0)). Device 1 does not have any amplification in either DL or UL. UL transmission in Device 1 is performed by backscattering an externally provided carrier wave (CW), i.e., an unmodulated wave.

[0059] Device 2a (may be referred to as type 2a) Device 2a is a device type that consumes a peak power of several hundred μW. Device 2a has energy storage and has an initial sampling frequency offset of up to Z [ppm] (Z is 10 to the xth power (x is an integer equal to or greater than 0)). Furthermore, DL and / or UL amplification is performed in device 2a. UL transmission in device 2a is performed by backscattering in CW provided from an external device.

[0060] Device 2b (may be referred to as type 2b) Device 2b is a device type that consumes a peak power of several hundred μW. Device 2b has energy storage and an initial sampling frequency offset of up to Z [ppm] (Z is 10 to the xth power (x is an integer equal to or greater than 0)). Furthermore, DL and / or UL amplification is performed in device 2b. UL transmission in device 2b is performed inside device 2b. In other words, UL transmission in device 2b does not need to be performed by backscattering in CW provided from an external source.

[0061] <Candidate Topologies> Next, candidate topologies for CW / R2D / D2R transmission will be described.

[0062] Fig. 8 is a diagram showing examples of candidate topologies for CW / R2D / D2R transmission in Topology 1. Fig. 8 shows Topology 1A, Topology 1B, Topology 1C, Topology 1D, and Topology 1E as examples of candidate topologies.

[0063] As shown in FIG. 8, in topologies 1A to 1E, CW / R2D communication signals (sometimes referred to as "R2D" in FIG. 8 and below) / D2R communication signals (sometimes referred to as "D2R" in FIG. 8 and below) can be transmitted and received to A-IoT devices.

[0064] In this embodiment, DL and R2D (reader to device) may be interchangeable, and UL and D2R (device to reader) may be interchangeable, where the reader corresponds to a BS and / or an intermediate UE, and the device corresponds to an A-IoT device.

[0065] In Topology 1A, the node (first BS) that transmits the CW is different from the node (second BS) that receives the D2R communication signal transmitted by the A-IoT device via backscattering, and the node that transmits the CW is the same as the node that transmits the R2D communication signal. Also, the node that transmits the R2D communication signal is different from the node that receives the D2R communication signal transmitted by the A-IoT device via backscattering. In other words, the R in R2D is different from the R in D2R.

[0066] In Topology 1B, the node (BS) that transmits the CW, the node that transmits the R2D communication signal, and the node that receives the D2R communication signal transmitted by the A-IoT device via backscattering are the same.

[0067] In topology 1C, the node that transmits the CW (CW node) is different from the node that transmits the R2D communication signal (BS). Also, in topology 1C, the node that transmits the CW is different from the node that receives the D2R communication signal transmitted by the A-IoT device via backscattering (BS). Also, in topology 1C, the node that transmits the R2D communication signal is the same as the node that receives the D2R communication signal transmitted by the A-IoT device via backscattering. In other words, the R in R2D and the R in D2R are the same. Note that the CW node may be a BS / (intermediate) UE / IAB node / NCR (network-controlled repeater) node / relay node / other type of node.

[0068] In Topology 1D, the node (BS) that transmits the signal for R2D communication is the same as the node that receives the signal for D2R communication generated and transmitted by the A-IoT device, i.e., R in R2D and R in D2R are the same.

[0069] In Topology 1E, the node (first BS) that transmits the R2D communication signal is different from the node (second BS) that receives the D2R communication signal generated and transmitted by the A-IoT device. That is, the R in R2D is different from the R in D2R.

[0070] Fig. 9 is a diagram showing examples of candidate topologies for CW / R2D / D2R transmission in Topology 2. Fig. 9 shows Topology 2A, Topology 2B, Topology 2C, Topology 2D, and Topology 2E as examples of candidate topologies.

[0071] As shown in Figure 9, in topologies 2A to 2E, CW / R2D communication signals (denoted as "R2D" in Figure 9) / D2R communication signals (denoted as "D2R" in Figure 9) can be sent and received to A-IoT devices.

[0072] In Topology 2A, the node (first intermediate UE) that transmits the CW is different from the node (second intermediate UE) that receives the D2R communication signal transmitted by the A-IoT device via backscattering, and the node that transmits the CW is the same as the node that transmits the R2D communication signal. Also, the node that transmits the R2D communication signal is different from the node that receives the D2R communication signal transmitted by the A-IoT device via backscattering. In other words, the R in R2D is different from the R in D2R.

[0073] In Topology 2B, the node that transmits the CW (intermediate UE), the node that transmits the R2D communication signal, and the node that receives the D2R communication signal transmitted by the A-IoT device via backscattering are the same.

[0074] In Topology 2C, the node that transmits the CW (CW node) is different from the node that transmits the R2D communication signal (intermediate UE). Also, in Topology 1C, the node that transmits the CW is different from the node (BS) that receives the D2R communication signal transmitted by the A-IoT device via backscattering. Also, in Topology 1C, the node that transmits the R2D communication signal is the same as the node that receives the D2R communication signal transmitted by the A-IoT device via backscattering. In other words, the R in R2D and the R in D2R are the same. Note that the CW node may be a BS / (intermediate) UE / IAB node / NCR node / relay node / other type of node.

[0075] In Topology 2D, the node (intermediate UE) that transmits the signal for R2D communication is the same as the node that receives the signal for D2R communication generated and transmitted by the A-IoT device, i.e., R in R2D and R in D2R are the same.

[0076] In Topology 2E, the node (first intermediate UE) that transmits the R2D communication signal is different from the node (second intermediate UE) that receives the D2R communication signal generated and transmitted by the A-IoT device. That is, R in R2D is different from R in D2R.

[0077] <Time window for D2R corresponding to R2D> A time window is defined for an A-IoT device to transmit a D2R corresponding to an R2D.

[0078] For example, the "T" shown by the double arrow A10a in FIG. R2D_min " and "T" indicated by the double arrow A10b in FIG. R2D_max The A-IoT device is configured to detect the time window [T R2D_min , T R2D_max ] and transmit D2R. R2D_min : The minimum time between an R2D transmission and a corresponding subsequent D2R transmission T R2D_max : the maximum time between an R2D transmission and a subsequent corresponding D2R transmission

[0079] That is, the time window for D2R transmission is from the earliest timing of D2R transmission to the latest timing of D2R transmission.

[0080] <Agreed points> In Rel-19 SID, it was agreed that the following L1 D2R control information (if defined) will not be subject to further study: CSI feedback Autonomous SR

[0081] Also, although HARQ / ARQ is not included in the Rel-19 SID, ACK / NACK feedback was proposed and discussed as one of the candidates for L1 D2R control information in the RAN1 discussions.

[0082] L1 is an abbreviation for Layer 1. SR is an abbreviation for Scheduling Request. HARQ is an abbreviation for hybrid automatic repeat request. ARQ is an abbreviation for automatic repeat request. ACK / NACK is an example of information related to an acknowledgement, and may also be called an acknowledgement signal or a response signal.

[0083] <Agreement> It was agreed that R2D data and L1 R2D control information will be transmitted on the PRDCH (Physical Reader to Device Channel). PRDCH is a physical channel for R2D and carries the following information (data): - Upper layer payload - L1 R2D control information (if defined)

[0084] That is, R2D data may refer to data / upper layer payload / system information.

[0085] <Agreement> It was agreed that D2R data and upper layer payloads will be transmitted over the PDRCH (Physical Device to Reader Channel). The PDRCH is a physical channel in D2R and carries the following information (data): Upper layer payload L1 D2R control information (if defined)

[0086] That is, D2R data may refer to data / upper layer payload.

[0087] In addition, the PDRCH transmits the response agreed upon in RAN #16.

[0088] <Analysis> An A-IoT UE (hereinafter also referred to as "A-IoT device") with power storage is charged, for example, by energy harvesting, receiving an RF signal from a reader. The A-IoT UE may become unavailable during charging, in other words, may be unable to communicate with the reader. The reader cannot schedule R2D / D2R for an unavailable A-IoT UE. For this reason, it is preferable for the A-IoT UE to report its status, etc. to the reader in advance.

[0089] At this time, the details of the reports that the A-IoT UE will make and the control of the reports, such as the timing of the reports, have not yet been determined. If the A-IoT UE cannot properly control the reports, the leader will not be able to properly schedule them.

[0090] Therefore, in this case, we propose control content regarding reports from A-IoT UE to the leader.

[0091] The items described in the following proposals may be combined as appropriate as long as no contradictions arise.

[0092] Hereinafter, "CW / R2D / D2R transmission" may be referred to as communication in a wireless communication system including an A-IoT device, communication of an A-IoT device, communication with an A-IoT device, communication involving an A-IoT device, etc.

[0093] In the following, notifications may be carried in the physical (PHY) layer / MAC (Medium Access Control) layer / RRC (Radio Resource Control) layer / a new layer defined for A-IoT.

[0094] <Proposals> The contents of each proposal of the present application will be described in detail below.

[0095] <Proposal 1> Proposal 1 proposes transmission / reception related information related to the transmission of PDRCH or the reception of PRDCH reported from an A-IoT device to a leader. Note that the transmission / reception related information is generated by the control unit 203 and transmitted from the transmission unit 202 to the leader.

[0096] In the following description, "report" refers to the transmitting unit 202 transmitting a PDRCH including transmission / reception related information to the leader. Also, in the following description, a PDRCH that does not include transmission / reception related information is referred to as "another PDRCH."

[0097] (Option 1) The A-IoT device reports to the leader whether it can transmit at least another PDRCH. In other words, the A-IoT device reports whether it has enough power to transmit another PDRCH.

[0098] The A-IoT device (control unit 203) calculates the battery power (remaining power) and the threshold T ＴＲ The battery power is compared with the threshold T ＴＲ If the battery power is greater than the threshold T ＴＲ If the threshold T is less than or equal to the threshold T, it may be determined that another PDRCH cannot be transmitted (i.e., there is not enough power to transmit another PDRCH). ＴＲ denotes the power required to transmit one PDRCH.

[0099] The A-IoT device (transmitter 202) may report to the reader whether or not it can transmit another PDRCH using one bit of information. For example, if the one bit of information is "0", it means that the A-IoT device can transmit another PDRCH, and if it is "1", it means that the A-IoT device cannot transmit another PDRCH.

[0100] (Variation 1) The A-IoT device may report only when it cannot transmit another PDRCH (i.e., there is not enough power to transmit another PDRCH). In this case, the A-IoT device does not report when it can transmit another PDRCH (i.e., there is enough power to transmit another PDRCH). Therefore, in this variation, the reader can know that the A-IoT device does not have enough power from the report from the A-IoT device.

[0101] (Variation 2) The A-IoT device may report to the leader only if it can transmit another PDRCH (i.e., it has enough power to transmit another PDRCH). In this case, the A-IoT device does not report if it cannot transmit another PDRCH (i.e., it does not have enough power to transmit another PDRCH). Therefore, in this variation, the leader can know that the A-IoT device does not have enough power because there are no reports from the A-IoT device.

[0102] (Option 2) The A-IoT device reports to the leader whether it can receive at least another PRDCH, in other words, whether it has enough power to receive another PRDCH.

[0103] The A-IoT device (control unit 203) calculates the battery power (remaining power) and the threshold T ＲＥ The battery power is compared with the threshold T ＲＥ If the battery power is greater than the threshold T ＲＥ If the threshold T is less than or equal to the threshold T, it may be determined that another PRDCH cannot be received (i.e., there is not enough power to receive another PRDCH). ＲＥ denotes the power required to receive one PRDCH.

[0104] The A-IoT device (transmitter 202) may report to the leader whether it can receive another PRDCH using one bit of information. For example, if the one bit of information is "0", it may mean that the A-IoT device can receive another PRDCH, and if the one bit of information is "1", it may mean that the A-IoT device cannot receive another PRDCH.

[0105] (Variation 1) The A-IoT device may report only when it cannot receive another PRDCH (i.e., it does not have enough power to receive another PRDCH). In this case, the A-IoT device does not report when it can receive another PRDCH (i.e., it has enough power to receive another PRDCH). Therefore, in this variation, the leader can know that the A-IoT device does not have enough power from the report from the A-IoT device.

[0106] (Variation 2) The A-IoT device may report to the leader only if it can receive another PRDCH (i.e., it has enough power to receive another PRDCH). In this case, the A-IoT device does not report if it cannot receive another PRDCH (i.e., it does not have enough power to receive another PRDCH). Therefore, in this variation, the leader can know that the A-IoT device does not have enough power because there is no report from the A-IoT device.

[0107] (Variation of Option 1 / 2) A-IoT devices often receive instructions from the leader and respond accordingly. That is, reception and transmission are often performed in pairs. Thus, the A-IoT device may report that it has enough power to receive the PRDCH and transmit the PDRCH, or that it does not have enough power to receive the PRDCH and transmit the PDRCH.

[0108] Also, the threshold T ＴＲ and the threshold T for option 2 ＲＥThe threshold values ​​T ＴＲ and threshold T ＲＥ may be predefined by the specification / system.

[0109] In addition, in Options 1 / 2, we have described the case where an A-IoT device reports whether it is possible to transmit another PDRCH / receive another PRDCH, but this embodiment is not limited to this, and the A-IoT device may also report whether it is possible to transmit another N (N is an integer greater than or equal to 2) PDRCHs / receive another PRDCH.

[0110] (Effect of Option 1 / 2) As described above, in Option 1 / 2, the transmission / reception related information is information indicating whether another PRDCH can be transmitted or whether another PRDCH can be received. This allows the reader to appropriately schedule R2D / D2R with the A-IoT device.

[0111] (Option 3) The A-IoT device can transmit PDRCHs X ＴＲ Report.

[0112] In option 3, the PDRCH transmitting the report is ＴＲ (See FIG. 11A), or X ＴＲ After reporting Option 3, the number of PDRCHs that the A-IoT device can transmit is X in the case of FIG. 11(A). ＴＲ -1, and in the case of FIG. 11(B) it is X ＴＲ This becomes:

[0113] The A-IoT device (control unit 203) calculates the battery power (remaining power) below a threshold T ＴＲ Divide by X ＴＲ may be calculated.

[0114] The reader determines the number of PDRCHs that the A-IoT device can transmit, X ＴＲ Since it is possible to know the D2R schedule of the A-IoT device, it is possible to appropriately schedule the D2R schedule of the A-IoT device.

[0115] (Variation) The A-IoT device sets the minimum value of the PDRCH that can be transmitted or the maximum value of the PDRCH that can be transmitted to X ＴＲ may be reported as

[0116] (Option 4) The A-IoT device receives the number of PRDCHs X ＲＥ Report.

[0117] The A-IoT device (control unit 203) calculates the battery power (remaining power) below a threshold T ＲＥ Divide by X ＲＥ may be calculated.

[0118] The leader determines the number of PRDCHs that the A-IoT device can receive, X ＲＥ Since it is possible to know the distance between the R2D and the A-IoT device, the scheduling of the R2D can be performed appropriately.

[0119] (Variation) A-IoT devices often receive instructions from a leader and respond accordingly. That is, reception and transmission are often performed as a pair. Therefore, the A-IoT device can receive the number of PRDCHs X ＲＥ and the number of PDRCHs that can be transmitted X ＴＲ The number of items may be reported in addition to the above.

[0120] The A-IoT device sets the minimum value of the PRDCH that can be received or the maximum value of the PRDCH that can be received as X ＲＥ may be reported as

[0121] (Regarding "maximum value" in options 3 / 4) The maximum value to be reported is the maximum value of PDRCH transmission / PRDCH reception in the worst case (large message size, long time resource, etc.). Therefore, the reader can determine that the A-IoT device can transmit PDRCH / receive PRDCH for the maximum value if the PDRCH / PRDCH is a normal case in which the message size is not as large as the worst case or the time resource is not long.

[0122] (Effects of Option 3 / 4) As described above, in Option 3 / 4, the transmission / reception related information is information indicating the number of transmittable PDRCHs or the number of receivable PRDCHs, which allows the leader to perform R2D / D2R scheduling.

[0123] (Option 5) The A-IoT device determines the value Y indicating the period during which the PDRCH can be transmitted (see FIG. 12A). ＴＲ Report.

[0124] The leader determines the period Y during which the A-IoT device can transmit PDRCH. ＴＲ Since it is possible to know the D2R schedule of the A-IoT device, it is possible to appropriately schedule the D2R schedule of the A-IoT device.

[0125] (Variation) The A-IoT device sets the minimum value of the period during which the PDRCH can be transmitted or the maximum value of the period during which the PDRCH can be transmitted to a value Y ＴＲ may be reported as

[0126] (Option 6) The A-IoT device receives a value Y ＲＥ Report.

[0127] The leader determines the period Y during which the A-IoT device can receive PRDCH. ＲＥ Since it is possible to know the distance between the R2D and the A-IoT device, the scheduling of the R2D can be performed appropriately.

[0128] (Variation) The A-IoT device sets the minimum value of the period during which the PRDCH can be received or the maximum value of the period during which the PRDCH can be transmitted to a value Y ＲＥ may be reported as

[0129] (Variation of Option 5 / 6) The A-IoT device may report how long it can remain in a transmit / receive state (e.g., X seconds / symbols / slots after reporting) or when it will switch from a transmit / receive state to a sleep / off mode.

[0130] (Effects of Option 5 / 6) As described above, in Option 5 / 6, the transmission / reception related information indicates the period during which the PDRCH can be transmitted / the period during which the PRDCH can be received. This allows the leader to perform R2D / D2R scheduling.

[0131] (Option 7) The A-IoT device sets a value Y indicating the period during which the PDRCH cannot be transmitted (see FIG. 12(B)). Ｎ-ＴＲ Report.

[0132] The leader determines the period Y during which the A-IoT device cannot transmit PDRCH. Ｎ-ＴＲ Since it is possible to know the D2R schedule of the A-IoT device, it is possible to appropriately schedule the D2R schedule of the A-IoT device.

[0133] (Variation) The A-IoT device sets the minimum value of the period during which the PDRCH cannot be transmitted or the maximum value of the period during which the PDRCH cannot be transmitted as a value Y Ｎ-ＴＲ may be reported as

[0134] (Option 8) The A-IoT device sets a value Y indicating the period during which it cannot receive PRDCH (see FIG. 12(B)). Ｎ-ＲＥ Report.

[0135] The leader is the A-IoT device during the period Y when it cannot receive the PRDCH. Ｎ-ＲＥ Since it is possible to know the distance between the R2D and the A-IoT device, the scheduling of the R2D can be performed appropriately.

[0136] (Variation) The A-IoT device sets the minimum value of the period during which the PRDCH cannot be received or the maximum value of the period during which the PRDCH cannot be received as a value Y Ｎ-ＲＥ may be reported as

[0137] (Effects of Option 7 / 8) As described above, in Option 7 / 8, the transmission / reception related information is information indicating a period during which the PDRCH cannot be transmitted / a period during which the PRDCH cannot be received. This allows the leader to perform R2D / D2R scheduling.

[0138] (Variations of Options 5 / 6 / 7 / 8) The start point of period Y may be any of the following four variations. The start point is the timing when the A-IoT device transmits the beginning of the PDRCH transmitting the report (see FIG. 13(A)). The start point is the timing when the A-IoT device transmits the end of the PDRCH transmitting the report (see FIG. 13(B)). The start point is the timing when Z time has elapsed since the A-IoT device transmitted the end of the PDRCH transmitting the report (see FIG. 13(C)). In the case of options 5 / 6, the start point is the timing when the A-IoT device transmits the PDRCH transmitted next to the PDRCH transmitting the report, or the timing when the A-IoT device receives the beginning of the PRDCH (see FIG. 13(D)).

[0139] Regardless of whether the start point of period Y is any of (A) to (D) above, once the start point of the period is determined, the end point of the period is also determined, so the leader can appropriately schedule the A-IoT devices.

[0140] The start point of the period Y may be predefined by the specifications / system.

[0141] (Option 9) The A-IoT device can transmit PDRCHs for a total of Y periods. ＴＲ If the period does not exceed the value Y, the A-IoT device is set as the period indicating that it can transmit the PDRCH. ＴＲ Report.

[0142] The leader determines the period Y of the PDRCH that the A-IoT device can transmit. ＴＲ Since it is possible to know the D2R schedule of the A-IoT device, it is possible to appropriately schedule the D2R schedule of the A-IoT device.

[0143] In option 9, the period of the PDRCH for transmitting the report is set to a value Y ＴＲ (see FIG. 14A), and the period of the PDRCH for transmitting the report may be the value Y ＴＲ (See FIG. 14B).

[0144] (Variation) The A-IoT device sets the minimum or maximum total period of the PDRCH that can be transmitted as a value Y ＴＲ may be reported as

[0145] As described above, in Option 9, the transmission / reception related information is information indicating a predetermined period indicating that the A-IoT device can transmit multiple PDRCHs, and the predetermined period is a period that does not exceed the total period during which the multiple PDRCHs can be transmitted. This allows the reader to perform D2R scheduling.

[0146] (Option 10) The A-IoT device receives PRDCH for a total period of Y ＲＥ If the period does not exceed the value Y, the A-IoT device can receive the PRDCH. ＲＥ Report.

[0147] The leader receives the PRDCH during the period Y ＲＥ Since it is possible to know the distance between the R2D and the A-IoT device, the scheduling of the R2D can be performed appropriately.

[0148] (Variation) The A-IoT device sets the minimum or maximum total receivable PRDCH period as a value Y ＲＥ may be reported as

[0149] As described above, in Option 10, the transmission / reception related information is information indicating a predetermined period indicating that the A-IoT device can receive multiple PRDCHs, and the predetermined period is a period that does not exceed the total period during which the A-IoT device can receive multiple PRDCHs. This allows the leader to perform R2D scheduling.

[0150] (Regarding value Y of option 9 / 10) The leader can adjust the number of PDRCHs / PRDCHs allocated to the period indicated by value Y, and can allocate the period indicated by value Y to transmitting one PDRCH / receiving PRDCH, or to transmitting multiple PDRCHs / receiving PRDCHs.

[0151] (Option 11) The A-IoT device reports the energy / power consumed in transmitting the PDRCH as transmission / reception related information.

[0152] The leader can know the energy / power consumed by the A-IoT device in transmitting the PDRCH, and can appropriately schedule the D2R of the A-IoT device.

[0153] (Option 12) The A-IoT device reports the energy / power consumed in receiving the PDRCH as transmission / reception related information.

[0154] The leader can know the energy / power consumed by the A-IoT device in receiving the PRDCH, and can appropriately schedule the R2D of the A-IoT device.

[0155] (Variation of Option 11 / 12) The A-IoT device can report its currently stored power to the reader. Option 11 / 12 proposes an indirect method for the reader to determine whether the A-IoT device can transmit PDRCH or receive PRDCH.

[0156] (Option 13) The A-IoT device reports whether it can increase the transmission power of the PDRCH as transmission / reception related information.

[0157] The leader can know whether the A-IoT device can increase the transmission power of the PDRCH, and can therefore appropriately schedule D2R for the A-IoT device.

[0158] (Option 14) The A-IoT device reports the headroom of the PDRCH transmission power (the value obtained by subtracting the current PDRCH transmission power from the maximum PDRCH transmission power) as transmission / reception related information.

[0159] The leader can know the headroom of the PDRCH transmission power, and can appropriately schedule D2R for A-IoT devices.

[0160] (Option 15) The A-IoT device reports, as transmission / reception related information, whether it is possible to amplify the received PRDCH signal or the transmitted PDRCH signal.

[0161] The leader can know whether the A-IoT device can amplify the received PRDCH signal or the transmitted PDRCH signal, and can therefore appropriately schedule D2R / R2D for the A-IoT device.

[0162] (Option 16) The A-IoT device reports, as transmission / reception related information, whether or not it is possible to increase the gain by amplifying the received PRDCH signal, or whether or not it is possible to increase the gain by amplifying the transmitted PDRCH signal.

[0163] The leader can know whether the A-IoT device can increase the gain from amplifying the received signal of the PRDCH or the gain from amplifying the transmitted signal of the PDRCH, so that the leader can appropriately schedule the D2R / R2D of the A-IoT device.

[0164] (Options 15 / 16) These options are related to whether the A-IoT device can adjust the gain. If the gain is adjustable, the reader can instruct the A-IoT device to adjust it. For example, if the reader finds that the A-IoT device is running low on power, the reader can instruct the A-IoT device to lower the gain.

[0165] (Option 17) The A-IoT device reports the amplification gain headroom of the PDRCH transmission signal (the value obtained by subtracting the current amplification gain of the PDRCH transmission signal from the maximum amplification gain of the PDRCH transmission signal) as transmission / reception related information.

[0166] The leader can know the amplification gain headroom of the PDRCH transmission signal, and can therefore appropriately schedule D2R for A-IoT devices.

[0167] (Option 18) The A-IoT device reports the amplification gain headroom of the received PRDCH signal (the value obtained by subtracting the current amplification gain of the PRDCH transmission signal from the maximum amplification gain of the PRDCH transmission signal) as transmission / reception related information.

[0168] The leader can know the amplification gain headroom of the received signal of the PRDCH, and can therefore appropriately schedule R2D for A-IoT devices.

[0169] (Variations of Options 15 / 16 / 17 / 18) The A-IoT device may also report parameters related to the amplifier provided in the A-IoT device, such as amplifier gain (class).

[0170] (Option 19) The A-IoT device reports a request to reduce the transmission power of the PDRCH as transmission / reception related information.

[0171] (Option 20) The A-IoT device reports a request to reduce the amplification gain of the received PRDCH signal or the amplification gain of the transmitted PDRCH signal as transmission / reception related information.

[0172] (Effect of Option 19 / 20) If an A-IoT device reports that it can transmit, for example, three PDRCHs, and then for some reason is only able to transmit two PDRCHs, it reports a request for Option 19 / 20. This allows the reader to indirectly know that it can no longer transmit three PDRCHs or that power is tight.

[0173] (Option 21) The A-IoT device reports a request for charging with energy harvesting as transmission-related information.

[0174] The reader can know the charging requirements of the A-IoT device, so it can send an R2D signal to the A-IoT device to satisfy the charging requirements of the A-IoT device, and then perform D2R / R2D scheduling.

[0175] (Option 22) The A-IoT device reports the charging time via energy harvesting as transmission-related information.

[0176] The reader can know the charging time of the A-IoT device, so it can send an R2D signal to the A-IoT device and schedule D2R / R2D after the A-IoT device has completed charging.

[0177] (Variation of Option 21 / 22) The A-IoT device may report parameters related to the storage capacity of the A-IoT device (e.g., the size of the capacitor, etc.).

[0178] (Variation of Proposal 1) A-IoT devices can support one or more of the above options.

[0179] In addition, the assumptions for the above options are described below. A predetermined default value may be used for the amount of power or energy consumption. In this case, the amount of power or energy consumption may differ depending on the method (hereinafter referred to as the "transmission / reception method") or parameters used for receiving the PRDCH or transmitting the PDRCH. Therefore, the information reported from the A-IoT device to the reader may also differ (for example, whether the A-IoT device can transmit other PDRCHs). The information reported from the A-IoT device to the reader may be reported on the assumption that a specific transmission / reception method / parameters are used for receiving the PRDCH or transmitting the PDRCH. (a) The transmission / reception related information may be reported on the assumption that the same transmission method / parameters as the PDRCH transmitting the report are used for PDRCH transmission. (b) The transmission / reception related information may be reported on the assumption that the same transmission method / parameters as the PRDCH scheduling / triggering are used, and the same transmission method / parameters as the PDRCH transmitting the report may be used for PRDCH reception. (c) The transmission and reception related information may be reported on the assumption that the same transmission and reception scheme / parameters as the last transmitted and received PDRCH / PRDCH are used. (d) The transmission and reception related information may be reported on the assumption that default transmission and reception scheme / parameters defined in the specification / system are used for transmitting the PDRCH / receiving the PRDCH. (e) The transmission and reception related information may be reported on the assumption that the transmission and reception scheme / parameters indicated by the reader are used for transmitting the PDRCH / receiving the PRDCH.

[0180] (Variations) A-IoT devices may support one or more of the types of information shown in a to e above.

[0181] The transmission / reception methods / parameters used for receiving the PRDCH / transmitting the PDRCH may include the following: TDRA / FDRA / CDRA, chip / symbol / bit period, chip / symbol / bit rate, modulation method, coding method, coding rate, whether FEC is enabled, FEC method, FEC coding rate, whether CRC attachment is enabled, CRC length, TBS (or message size), whether repetition is enabled, number of repetitions, whether a midamble (a signal inserted between transmission and reception for time synchronization, etc.) is present, and if a midamble is present, the midamble sequence.

[0182] (Other options) The transmission and reception related information (information on power control) reported from the A-IoT device to the reader may also include the following: Maximum D2R transmission power, maximum R2D reception power, maximum stored power, current stored power, supported amplification gain (one or several specific values) or maximum amplification gain, activation threshold (if DL reception power >= threshold, the A-IoT device is activated), and power collection efficiency.

[0183] <Proposal 2> Proposal 2 proposes the timing of sending transmission / reception related information from an A-IoT device to a reader. The options described in Proposal 2 may be appropriately combined with the options described in Proposal 1 as long as no contradiction occurs.

[0184] (Option 1) The A-IoT device may report when a report has not been triggered, i.e., when the A-IoT device wakes up and no transmission / reception related information has been sent.

[0185] This option 1 means that a report is made once after the A-IoT device accesses the network. Note that this option 1 can be combined with the options 11 to 22 of Proposal 1 that report the capability information of the A-IoT device.

[0186] (Option 2) A-IoT devices report when they receive requests or instructions from the leader.

[0187] This option 2 can be combined with all options 1 to 22 of Proposal 1.

[0188] (Option 3) A-IoT devices report when PDRCH transmission is triggered / scheduled.

[0189] (Option 4) The A-IoT device reports when the previously reported value has changed (or when the value has changed beyond a threshold). An example of the application of Option 4 is when, after reporting that the remaining three PDRCHs can be transmitted, the A-IoT device's power is consumed over time, resulting in a situation where only the remaining two PDRCHs can be transmitted. Also, for example, if multiple thresholds are set for the time that the A-IoT device can maintain a transmission / reception state, a report is made every time the threshold is exceeded, which is essentially the same as when the threshold is changed. Therefore, cases where multiple thresholds are set are also examples of the application of Option 4.

[0190] (Option 5) The A-IoT device reports when the reported value falls below a threshold or when the reported value exceeds a threshold. This option 5 can be combined with options 3 / 4 / 5 / 6 / 7 / 8 of Proposal 1, and the "reported value" corresponds to value X in options 3 / 4 or value Y in options 5 / 6 / 7 / 8.

[0191] (Option 6) The A-IoT device reports when the stored power falls below a threshold or when the stored power exceeds a threshold.

[0192] (Option 7) The A-IoT device reports if the transmission / reception method for PDRCH transmission / PRDCH reception, or parameters related to PDRCH transmission / reception, have changed since the previous report.

[0193] (Option 8) The A-IoT device reports when any timer expires. The timer length may be predefined by the specification / system. The timer length is indicated to the A-IoT device depending on the capabilities of the A-IoT device. The A-IoT device restarts the timer after reporting.

[0194] Periodic or semi-persistent reporting from A-IoT devices can be configured, activated, or triggered. The periodicity and timing of reports (e.g., time offset) may be instructed on the A-IoT device or may be predefined by the specification / system.

[0195] (Effect of Proposal 2) By specifying the reporting timing as described above, the leader can know the transmission / reception related information of the A-IoT device at the appropriate time, and can schedule the A-IoT device.

[0196] (Variations common to all proposals) PRDCH can carry at least one of R2D data and R2D L1 control information. (a) This proposal may be applied when PRDCH carries R2D data, when PRDCH carries R2D L1 control information, or when PRDCH carries both R2D L1 control information and R2D data. (b) This proposal may be applied to PRDCH carrying R2D data, and to PRDCH carrying both R2D L1 control information and R2D data, but not to PRDCH carrying R2D L1 control information.

[0197] The PDRCH can carry at least one of D2R data and D2R L1 control information. (a) This proposal may apply when the PDRCH carries D2R data, when the PDRCH carries D2R L1 control information, or when the PDRCH carries both D2R L1 control information and D2R data. (b) This proposal may apply to the PDRCH carrying D2R data, to the PDRCH carrying both D2R L1 control information and D2R data, and not to the PDRCH carrying D2R L1 control information.

[0198] In the case of NR, the report may be transmitted in the form of information defined as D2R L1 control information such as UCI and CSI, or may be transmitted as D2R information of a higher layer.

[0199] <Device Configuration> Next, the configurations of the base station 10 and the device 20 will be described. Note that the configurations of the base station 10 and the device 20 described below are examples of functions related to this embodiment. The base station 10 and the device 20 may have functions not shown. Furthermore, the functional divisions and / or names of the functional units are not limited as long as the functions perform the operations related to this embodiment.

[0200] <Configuration of Base Station> Fig. 15 is a block diagram showing an example of the configuration of a base station 10 according to an embodiment. The base station 10 includes, for example, a transmitting unit 101, a receiving unit 102, and a control unit 103. The base station 10 communicates with a device 20 (see Fig. 16) wirelessly. The base station 10 may be a terminal (an intermediate UE that communicates with the device 20) or a CW node.

[0201] The transmitter 101 transmits a downlink (DL) signal to the device 20. For example, the transmitter 101 transmits the DL signal under the control of the controller 103.

[0202] The DL signal may include, for example, a downlink data signal and control information (e.g., DCI (Downlink Control Information)). The DL signal may also include information indicating scheduling related to signal transmission of the device 20 (e.g., an UL grant). The DL signal may also include control information of higher layers (e.g., control information of RRC (Radio Resource Control)). The DL signal may also include a reference signal.

[0203] The channels used for transmitting DL signals include, for example, a data channel and a control channel. For example, the data channel may include a PDSCH (Physical Downlink Shared Channel), and the control channel may include a PDCCH (Physical Downlink Control Channel). For example, the base station 10 transmits control information to the device 20 using the PDCCH and transmits downlink data signals using the PDSCH.

[0204] The reference signal included in the DL signal may include at least one of, for example, a Demodulation Reference Signal (DMRS), a Phase Tracking Reference Signal (PTRS), a Channel State Information-Reference Signal (CSI-RS), a Sounding Reference Signal (SRS), and a Positioning Reference Signal (PRS) for position information. For example, reference signals such as the DMRS and PTRS are used for demodulating downlink data signals and are transmitted using the PDSCH.

[0205] The receiving unit 102 receives an uplink (UL) signal transmitted from the device 20. For example, the receiving unit 102 receives the UL signal under the control of the control unit 103.

[0206] The control unit 103 controls the communication operations of the base station 10 , including the transmission processing of the transmission unit 101 and the reception processing of the reception unit 102 .

[0207] For example, the control unit 103 acquires information such as data and control information from the upper layer and outputs it to the transmitting unit 101. The control unit 103 also outputs the data, control information, etc. received from the receiving unit 102 to the upper layer.

[0208] For example, the control unit 103 allocates resources (or channels) used for transmitting and receiving DL signals and / or resources used for transmitting and receiving UL signals based on signals (e.g., data and control information, etc.) received from the device 20 and / or data and control information, etc. acquired from a higher layer. Information on the allocated resources may be included in control information transmitted to the device 20.

[0209] The control unit 103 configures PUCCH resources as an example of resource allocation used for transmitting and receiving UL signals. Information related to PUCCH configuration (PUCCH configuration information), such as a PUCCH cell timing pattern, may be notified to the device 20 by RRC.

[0210] Here, the transmitting unit 101 and the receiving unit 102 (which may be collectively referred to as a communication unit) communicate with the device 20 .

[0211] For example, the transmitting unit 101 may transmit information regarding frequency resources used for communication involving an A-IoT device to the device 20, etc.

[0212] Furthermore, for example, the communication unit may use the above frequency resources to perform communication involving an A-IoT device.

[0213] 16 is a block diagram showing an example of the configuration of the device 20 according to the embodiment. The device 20 includes, for example, a receiving unit 201, a transmitting unit 202, and a control unit 203. The device 20 communicates with, for example, the base station 10 wirelessly. The device 20 may be a terminal (for example, an intermediate UE) or a CW node.

[0214] The receiving unit 201 receives a DL signal transmitted from the base station 10. For example, the receiving unit 201 receives the DL signal under the control of the control unit 203.

[0215] The transmitting unit 202 transmits the UL signal to the base station 10. For example, the transmitting unit 202 transmits the UL signal under the control of the control unit 203.

[0216] The UL signal may include, for example, an uplink data signal and control information (e.g., UCI (Uplink Control Information)). For example, information related to the processing capability of the device 20 (e.g., A-IoT capability) may be included. The UL signal may also include a reference signal.

[0217] The channels used for transmitting UL signals include, for example, a data channel and a control channel. For example, the data channel may include a PUSCH (Physical Uplink Shared Channel), and the control channel may include a PUCCH (Physical Uplink Control Channel). For example, the device 20 transmits control information from the base station 10 using the PUCCH and transmits uplink data signals using the PUSCH.

[0218] The reference signal included in the UL signal may include, for example, at least one of a DMRS, a PTRS, a CSI-RS, an SRS, and a PRS. For example, the reference signal such as the DMRS or the PTRS is used for demodulating an uplink data signal and is transmitted using an uplink channel (for example, a PUSCH).

[0219] The control unit 203 controls the communication operations of the device 20 , including the reception processing in the receiving unit 201 and the transmission processing in the transmitting unit 202 .

[0220] For example, the control unit 203 acquires information such as data and control information from the upper layer and outputs it to the transmitting unit 202. Also, the control unit 203 outputs, for example, the data and control information received from the receiving unit 201 to the upper layer.

[0221] For example, the control unit 203 controls transmission of information to be fed back to the base station 10. The information to be fed back to the base station 10 may include, for example, HARQ ACK / NACK, Channel State Information (CSI), or a Scheduling Request (SR). The information to be fed back to the base station 10 may be included in UCI. The UCI is transmitted, for example, in PUCCH resources.

[0222] Control unit 203 configures PUCCH resources based on configuration information (for example, configuration information such as a PUCCH cell timing pattern and / or DCI notified by RRC) received from base station 10. Control unit 203 determines PUCCH resources to be used for transmitting information to be fed back to base station 10. Under the control of control unit 203, transmission unit 202 transmits the information to be fed back to base station 10 in the PUCCH resources determined by control unit 203.

[0223] Note that the channel used for transmitting the DL signal and the channel used for transmitting the UL signal are not limited to the above-mentioned examples. For example, the channel used for transmitting the DL signal and the channel used for transmitting the UL signal may include a Random Access Channel (RACH) and a Physical Broadcast Channel (PBCH). The RACH may be used to transmit DCI including a Random Access Radio Network Temporary Identifier (RA-RNTI), for example.

[0224] Here, the receiving unit 201 and the transmitting unit 202 (which may be collectively referred to as a communication unit) communicate with the network, such as the base station 10 and intermediate UEs.

[0225] For example, the receiver 201 may receive information regarding frequency resources to be used for communication involving the A-IoT device from the base station 10 or the network of intermediate UEs, and the controller 203 may determine the frequency resources to be used for communication involving the A-IoT device based on the information received by the receiver 201. The frequency resources to be used for communication involving the A-IoT device may be one frequency resource, a plurality of contiguous frequency resources, or a plurality of non-contiguous frequency resources, and may include a first frequency resource used in a first frequency hop and a second frequency resource used in a second frequency hop.

[0226] Also, for example, the communication unit may use frequency resources determined by the control unit 203 to perform communication involving an A-IoT device.

[0227] The present disclosure has been described above. Note that the division of items in the above description is not essential to the present disclosure, and items described in two or more items may be used in combination as needed, and items described in one item may be applied to items described in another item (unless they are inconsistent).

[0228] <Hardware Configuration, etc.> The block diagrams used to explain the above embodiments show functional blocks. 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 a single device that is physically or logically coupled, or may be realized using two or more physically or logically separated devices that are directly or indirectly connected (e.g., using wires, wirelessly, etc.) and these multiple devices. The functional block may also be realized by combining software with the single device or the multiple devices.

[0229] Functions include, but are not limited to, judgment, determination, assessment, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, consideration, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assignment. For example, a functional block (component) that performs transmission is called a transmitting unit or transmitter. As mentioned above, there are no particular limitations on how these functions are implemented.

[0230] For example, a base station, a device, etc. according to an embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure. Fig. 17 is a diagram showing an example of the hardware configuration of a base station and a device according to the embodiment. The above-described base station 10 and device 20 may be physically configured as a computer including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0231] In the following description, the term "apparatus" can be interpreted as a circuit, a device, a unit, etc. The hardware configuration of the base station 10 and the device 20 may be configured to include one or more of the apparatuses shown in the drawings, or may be configured to exclude some of the apparatuses.

[0232] Each function in the base station 10 and the device 20 is realized by loading specified software (programs) onto hardware such as the processor 1001 and memory 1002, causing the processor 1001 to perform calculations, control communication by the communication device 1004, and control at least one of reading and writing data in the memory 1002 and storage 1003.

[0233] The processor 1001 controls the entire computer by running, for example, an operating system. The processor 1001 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, a register, etc. For example, the above-mentioned control unit 103 and control unit 203 may be realized by the processor 1001.

[0234] The processor 1001 also reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002 and executes various processes in accordance with the programs. The programs used are those that cause a computer to execute at least some of the operations described in the above-described embodiments. For example, the control unit 103 of the base station 10 and the control unit 203 of the device 20 may be implemented by a control program stored in the memory 1002 and running on the processor 1001, and similar implementations may be used for other functional blocks. While the above-described various processes have been described as being executed by one processor 1001, they may also be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 may be implemented by one or more chips. The programs may also be transmitted from a network via a telecommunications line.

[0235] The memory 1002 is a computer-readable recording medium and may be configured by, for example, 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), etc. The memory 1002 may also be called a register, a cache, a main memory (primary storage device), etc. The memory 1002 can store executable programs (program codes), software modules, etc. for implementing a wireless communication method according to an embodiment of the present disclosure.

[0236] Storage 1003 is a computer-readable recording medium, and may be composed of at least one of, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (e.g., a compact disk, a digital versatile disk, a Blu-ray (registered trademark) disk), a smart card, a flash memory (e.g., a card, a stick, a key drive), a floppy (registered trademark) disk, a magnetic strip, etc. Storage 1003 may also be referred to as an auxiliary storage device. The above-mentioned storage medium may be, for example, a database, a server, or other appropriate medium including at least one of memory 1002 and storage 1003.

[0237] 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, a network controller, a network card, a communication module, etc. The communication device 1004 may be configured to include 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). For example, the above-mentioned transmitter 101, receiver 102, receiver 201, transmitter 202, etc. may be realized by the communication device 1004.

[0238] The input device 1005 is an input device (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that receives input from the outside. The output device 1006 is an output device (e.g., a display, a speaker, an LED lamp, etc.) that outputs to the outside. The input device 1005 and the output device 1006 may be integrated into one device (e.g., a touch panel).

[0239] Furthermore, 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 between each device.

[0240] Furthermore, the base station 10 and the device 20 may be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), or a field programmable gate array (FPGA), and some or all of the functional blocks may be realized by the hardware. For example, the processor 1001 may be implemented using at least one of these pieces of hardware.

[0241] <Notification of Information, Signaling> Notification of information is not limited to the embodiments described in the present disclosure and may be performed using other methods. For example, notification of information may be performed by physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB))), other signals, or a combination thereof. Furthermore, RRC signaling may be referred to as an RRC message, and may be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, or the like.

[0242] <Applicable Systems> The embodiments described in the present disclosure are applicable to LTE (Long Term Evolution), LTE-Advanced (LTE-A), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), 6th generation mobile communication system (6G), xth generation mobile communication system (xG) (xG (x is, for example, an integer or a decimal)), FRA (Future Radio Access), NR (new Radio), New radio access (NX), Future generation radio access (FX), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.17 (WiMAX (registered trademark)), IEEE 802.19 (WiMAX (registered trademark)), IEEE 802.20 (WiMAX (registered trademark)), IEEE 802.21 (Wi-Fi (registered trademark)), IEEE 802.22 (WiMAX (registered trademark)), IEEE 802.23 (WiMAX (registered trademark)), IEEE 802.24 (WiMAX (registered trademark)), IEEE 802.25 (WiMAX (registered trademark)), IEEE 802.26 (WiMAX (registered trademark)), IEEE 802.27 (WiMAX (registered trademark)), IEEE 802.28 (WiMAX (registered trademark)), IEEE 802.29 (WiMAX (registered trademark)), IEEE 802.30 (WiMAX (registered trademark)), IEEE 802.31 (Wi-Fi (registered trademark)), IEEE 802.32 (WiMAX (registered trademark)), IEEE 802.33 (WiMAX (registered trademark)), IEEE 802.34 (WiMAX (registered trademark The present invention may be applied to at least one of systems using 802.20, UWB (Ultra-Wide Band), Bluetooth (registered trademark), or other suitable systems, and next-generation systems that are extended, modified, created, or defined based on these systems. The present invention may also be applied to a combination of multiple systems (e.g., a combination of LTE and / or LTE-A with 5G).

[0243] <Processing Procedures, etc.> The processing procedures, sequences, flowcharts, etc. of each aspect / embodiment described in this disclosure may be rearranged unless inconsistent. For example, the methods described in this disclosure present elements of various steps using an example order, and are not limited to the particular order presented.

[0244] <Operation of Base Station> In the present disclosure, specific operations described as being performed by a base station may also be performed by its upper node in some cases. In a network consisting of one or more network nodes having a base station, it is clear that various operations performed for communication with a terminal may be performed by at least one of the base station and another network node other than the base station (for example, an MME or an S-GW, etc., but are not limited to these). Although the above example illustrates a case where there is one other network node other than the base station, a combination of multiple other network nodes (for example, an MME and an S-GW) may also be used.

[0245] <Direction of Input / Output> Information, etc. (see <Information, Signal>) can be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). It may also be input / output via multiple network nodes.

[0246] <Handling of Input / Output Information, etc.> Input / output information, etc. may be stored in a specific location (for example, memory) or may be managed using a management table. Input / output information, etc. may be overwritten, updated, or added. Output information, etc. may be deleted. Input information, etc. may be sent to another device.

[0247] <Determination method> The determination may be made based on a value represented by one bit (0 or 1), a Boolean value (true or false), or a comparison of numerical values ​​(e.g., comparison with a predetermined value).

[0248] <Variations of Aspects, etc.> Each aspect / embodiment described in the present disclosure may be used alone, in combination, or switched depending on the implementation. In addition, notification of predetermined information (e.g., notification that "X is true") is not limited to being done explicitly, but may be done implicitly (e.g., by not notifying the predetermined information).

[0249] Although the present disclosure has been described in detail above, it is clear to those skilled in the art that the present disclosure is not limited to the embodiments described herein. The present disclosure can be implemented in modified and altered forms without departing from the spirit and scope of the present disclosure as defined by the claims. Therefore, the description of the present disclosure is intended to be illustrative and does not have any limiting meaning on the present disclosure.

[0250] <Software> Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.

[0251] Software, instructions, information, etc. may also be transmitted or received over a transmission medium. For example, if software is transmitted from a website, server, or other remote source using wired technologies (such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL)), and / or wireless technologies (such as infrared, microwave), then these wired and / or wireless technologies are included within the definition of transmission media.

[0252] 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., which may be referred to throughout the above description, may be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0253] Note that terms described in this disclosure and terms necessary for understanding this disclosure may be replaced with terms having the same or similar meanings. For example, at least one of a channel and a symbol may be a signal (signaling). Furthermore, a signal may be a message. Furthermore, a component carrier (CC) may be called a carrier frequency, a cell, a frequency carrier, etc.

[0254] <System, Network> As used in this disclosure, the terms "system" and "network" are used interchangeably.

[0255] <Parameter and Channel Names> Furthermore, the information, parameters, and the like described in the present disclosure may be expressed using absolute values, relative values ​​from a predetermined value, or other corresponding information. For example, a radio resource may be indicated by an index.

[0256] The names used for the above-described parameters are not intended to be limiting in any way. Furthermore, the mathematical expressions using these parameters may differ from those explicitly disclosed in this disclosure. The various channels (e.g., PUCCH, PDCCH, etc.) and information elements may be identified by any suitable names, and therefore the various names assigned to these various channels and information elements are not intended to be limiting in any way.

[0257] <Base Station> In the present disclosure, terms such as "base station (BS)," "radio base station," "fixed station," "NodeB," "eNodeB (eNB)," "gNodeB (gNB)," "access point," "transmission point," "reception point," "transmission / reception point," "cell," "sector," "cell group," "carrier," and "component carrier" may be used interchangeably. A base station may also be referred to by terms such as a macrocell, a small cell, a femtocell, and a picocell.

[0258] A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be partitioned into multiple smaller areas, and each smaller area can also be provided with communication services by a base station subsystem (e.g., a remote radio head (RRH)). The terms "cell" or "sector" refer to part or the entire coverage area of ​​a base station and / or base station subsystem that provides communication services within that coverage area.

[0259] In the present disclosure, the base station transmitting information to a terminal may be interpreted as the base station instructing the terminal to control or operate based on the information.

[0260] Mobile Station In this disclosure, the terms "Mobile Station (MS)," "user terminal," "User Equipment (UE)," "terminal," and the like may be used interchangeably.

[0261] A mobile station may also be referred to by those 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 terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.

[0262] <Base Station / Mobile Station> At least one of the base station and the mobile station may be referred to as a transmitting device, a receiving device, a communication device, etc. At least one of the base station and the mobile station may be a device mounted on a mobile object, the mobile object itself, etc. The mobile object refers to a movable object, and may move at any speed. Naturally, this also includes cases where the mobile object is stationary. Examples of the mobile object include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, handcars, rickshaws, ships and other watercraft, airplanes, rockets, satellites, drones (registered trademark), multicopters, quadcopters, balloons, and objects mounted thereon. The mobile object may also be an autonomous mobile object operating based on an operational command. It may be a vehicle (e.g., a car, an airplane, etc.), an unmanned mobile object (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). At least one of the base station and the mobile station may be a device that does 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.

[0263] Furthermore, the base station in the present disclosure may be read as a terminal. For example, the embodiments of the present disclosure may be applied to a configuration in which communication between a base station and a terminal is replaced with communication between multiple terminals (which may be called, for example, D2D (Device-to-Device) or V2X (Vehicle-to-Everything)). In this case, the device 20 may be configured to have the functions of the base station 10 described above. Furthermore, terms such as "uplink" and "downlink" may be read as terms corresponding to communication between terminals (for example, "side"). For example, terms such as an uplink channel and a downlink channel may be read as a side channel.

[0264] Similarly, the term "terminal" in the present disclosure may be interpreted as a base station, in which case the base station 10 may be configured to have the functions of the device 20 described above.

[0265] Fig. 18 shows an example configuration of a vehicle 2001. As shown in Fig. 18, the vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, front wheels 2007, rear wheels 2008, an axle 2009, an electronic control unit 2010, various sensors 2021 to 2029, an information service unit 2012, and a communication module 2013. Each aspect / embodiment described in the present disclosure may be applied to a communication device mounted on the vehicle 2001, and may be applied to the communication module 2013, for example.

[0266] The drive unit 2002 is configured, for example, by an engine, a motor, or a hybrid of an engine and a motor. The steering unit 2003 includes at least a steering wheel (also called a handle) 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.

[0267] The electronic control unit 2010 is composed of a microprocessor 2031, a memory (ROM, RAM) 2032, and a communication port (IO port) 2033. Signals are input to the electronic control unit 2010 from various sensors 2021 to 2029 provided in the vehicle 2001. The electronic control unit 2010 may also be called an ECU (Electronic Control Unit).

[0268] The signals from the various sensors 2021 to 2029 include a current signal from a current sensor 2021 that senses the current of the motor, a rotation speed signal of the front and rear wheels obtained by a rotation speed sensor 2022, an air pressure signal of the front and rear wheels obtained by an air pressure sensor 2023, a vehicle speed signal obtained by a vehicle speed sensor 2024, an acceleration signal obtained by an acceleration sensor 2025, an accelerator pedal depression amount signal obtained by an accelerator pedal sensor 2029, a brake pedal depression amount signal obtained by a brake pedal sensor 2026, a shift lever operation signal obtained by a shift lever sensor 2027, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by an object detection sensor 2028.

[0269] The information service unit 2012 is composed of various devices, such as a car navigation system, an audio system, speakers, a television, and a radio, for providing (outputting) various types of information, such as driving information, traffic information, and entertainment information, and one or more ECUs that control these devices. The information service unit 2012 provides various types of multimedia information and multimedia services to the occupants of the vehicle 2001 by using information acquired from external devices via the communication module 2013, etc.

[0270] The information service unit 2012 may include input devices (e.g., keyboards, mice, microphones, switches, buttons, sensors, touch panels, etc.) that accept input from the outside, and may also include output devices (e.g., displays, speakers, LED lamps, touch panels, etc.) that output to the outside.

[0271] The driving assistance system unit 2030 is composed of various devices that provide functions for preventing accidents and reducing the driving burden on the driver, such as 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, as well as one or more ECUs that control these devices. In addition, the driving assistance system unit 2030 transmits and receives various information via the communication module 2013 to realize the driving assistance function or the autonomous driving function.

[0272] The communication module 2013 can communicate with the microprocessor 2031 and components of the vehicle 2001 via the communication port. For example, the communication module 2013 transmits and receives data via the communication port 2033 to and from the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, front wheels 2007, rear wheels 2008, axle 2009, microprocessor 2031 and memory (ROM, RAM) 2032 in the electronic control unit 2010, and sensors 2021 to 29, which are provided in the vehicle 2001.

[0273] 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 an external device. For example, it transmits and receives various information to and from the external device via wireless communication. The communication module 2013 may be located either inside or outside the electronic control unit 2010. The external device may be, for example, a base station, a mobile station, or the like.

[0274] The communication module 2013 may transmit at least one of signals from the above-mentioned various sensors 2021 to 2029 input to the electronic control unit 2010, information obtained based on the signals, and information based on input from the outside (user) obtained via the information service unit 2012 to an external device via wireless communication. The electronic control unit 2010, the various sensors 2021 to 2029, the information service unit 2012, etc. may be referred to as input units that accept input. For example, the PUSCH transmitted by the communication module 2013 may include information based on the above-mentioned input.

[0275] The communication module 2013 receives various information (traffic information, traffic signal information, vehicle distance information, etc.) transmitted from an external device and displays it on the information service unit 2012 provided in the vehicle 2001. The information service unit 2012 may also be called an output unit that outputs information (for example, outputs information to a device such as a display or speaker based on the PDSCH received by the communication module 2013 (or data / information decoded from the PDSCH)).

[0276] Furthermore, the communication module 2013 stores various information received from external devices in a memory 2032 that can be used by the microprocessor 2031. Based on the information stored in the memory 2032, the microprocessor 2031 may control the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, front wheels 2007, rear wheels 2008, axle 2009, sensors 2021 to 2029, and the like provided in the vehicle 2001.

[0277] <Meaning and Interpretation of Terms> As used in this disclosure, the terms "determining" and "determining" may encompass a wide variety of actions. "Determining" and "determining" may include, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiring (e.g., searching a table, database, or other data structure), ascertaining something that is considered to be a "judging" or "determining," and the like. "Determining" and "determining" may also include receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in memory), and the like that are considered to be a "judging" or "determining." Furthermore, "judgment" and "decision" can include regarding resolving, selecting, choosing, establishing, comparing, etc. as having been "judged" or "decided." In other words, "judgment" and "decision" can include regarding some action as having been "judged" or "decided." Furthermore, "judgment (decision)" can be interpreted as "assuming," "expecting," "considering," etc.

[0278] The terms "connected," "coupled," or any variation thereof, refer to any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are "connected" or "coupled" to each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, "connected" may be read as "access." As used in this disclosure, two elements may be considered to be "connected" or "coupled" to each other using one or more wires, cables, and / or printed electrical connections, as well as electromagnetic energy having wavelengths in the radio frequency range, microwave range, and optical (both visible and invisible) range, as some non-limiting and non-exhaustive examples.

[0279] <Reference Signal> A reference signal can also be abbreviated as RS (Reference Signal), and may also be called a pilot depending on the applicable standard.

[0280] <Meaning of "based on"> As used in this disclosure, the phrase "based on" does not mean "based only on," unless expressly stated otherwise. In other words, the phrase "based on" means both "based only on" and "based at least on."

[0281] "First," "Second" Any reference to an element using designations such as "first," "second," etc., used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, a reference to a first and a second element does not imply that only two elements may be employed or that the first element must precede the second element in some way.

[0282] <Means> The "means" in the configuration of each device above may be replaced with "section," "circuit," "device," etc.

[0283] Open Format: When the terms "include," "including," and variations thereof are used in this disclosure, these terms are intended to be inclusive, similar to the term "comprising." Furthermore, when the term "or" is used in this disclosure, it is not intended to be an exclusive or.

[0284] <Time Units such as TTI, Frequency Units such as RB, and Radio Frame Configuration> A radio frame may be composed of one or more frames in the time domain. Each of the one or more 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 (e.g., 1 ms) that is independent of numerology.

[0285] Numerology may be a communication parameter that applies to the transmission and / or reception of a signal or channel, and may indicate, for example, at least one of subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame structure, specific filtering operations performed by the transceiver in the frequency domain, and specific windowing operations performed by the transceiver in the time domain.

[0286] A slot may be composed of one or more symbols in the time domain (such as an Orthogonal Frequency Division Multiplexing (OFDM) symbol or a Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol). A slot may be a time unit based on numerology.

[0287] A slot may include multiple minislots. Each minislot may consist of one or multiple symbols in the time domain. A minislot may also be called a subslot. A minislot may consist of fewer symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a minislot may be called PDSCH (or PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a minislot may be called PDSCH (or PUSCH) mapping type B.

[0288] The radio frame, subframe, slot, minislot, and symbol all represent time units for transmitting signals, and may be referred to by other names corresponding to the radio frame, subframe, slot, minislot, and symbol.

[0289] For example, one subframe may be called a transmission time interval (TTI), multiple consecutive subframes may be called a TTI, or one slot or one minislot may be called a TTI. That is, at least one of the subframe and the 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. Note that the unit representing the TTI may be called a slot, minislot, etc. instead of a subframe.

[0290] Here, TTI refers to, for example, the smallest time unit for scheduling in wireless communication. For example, in an LTE system, a base station performs scheduling to allocate radio resources (such as frequency bandwidth and transmission power that can be used by each user terminal) to each user terminal in TTI units. Note that the definition of TTI is not limited to this.

[0291] The TTI may be a transmission time unit for a channel-encoded data packet (transport block), a code block, a code word, etc., or may be a processing unit for scheduling, link adaptation, etc. When a 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.

[0292] When one slot or one minislot is called a TTI, one or more TTIs (i.e., one or more slots or one or more minislots) may be the minimum time unit for scheduling. Also, the number of slots (minislots) constituting the minimum time unit for scheduling may be controlled.

[0293] A TTI having a time length of 1 ms may be called a regular TTI (TTI in LTE Rel. 8-12), normal TTI, long TTI, regular subframe, normal subframe, long subframe, slot, etc. A TTI shorter than a regular TTI may be called a shortened TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, etc.

[0294] In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) may be interpreted as a TTI having a time length of more than 1 ms, and a short TTI (e.g., a shortened TTI, etc.) may be interpreted as a TTI having a TTI length shorter than the TTI length of a long TTI and greater than or equal to 1 ms.

[0295] 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 in the frequency domain. The number of subcarriers included in an RB may be the same regardless of numerology, for example, 12. The number of subcarriers included in an RB may be determined based on numerology.

[0296] The time domain of an RB may include one or more symbols and may have a length of one slot, one minislot, one subframe, or one TTI. One TTI, one subframe, etc. may each be composed of one or more resource blocks.

[0297] Note that one or more RBs may also be called a physical resource block (PRB), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, etc.

[0298] Furthermore, a resource block may be composed of one or more resource elements (REs). For example, one RE may be a radio resource region of one subcarrier and one symbol.

[0299] A Bandwidth Part (BWP) (which may also be referred to as a fractional bandwidth) may represent a subset of contiguous common resource blocks (RBs) for a given numerology on a given carrier, where the common RBs may be identified by their index relative to a Common Reference Point of the carrier. PRBs may be defined in a BWP and numbered within the BWP.

[0300] The BWP may include a BWP for UL (UL BWP) and a BWP for DL ​​(DL BWP). One or more BWPs may be configured for a UE within one carrier.

[0301] 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 the terms "cell," "carrier," etc. in this disclosure may be read as "BWP."

[0302] The above-described structures of radio frames, subframes, slots, minislots, symbols, etc. are merely examples, and various changes may be made to the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of subcarriers included in an RB, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, etc.

[0303] <Maximum Transmit Power> The "maximum transmit power" in the present disclosure may refer to the maximum value of transmit power, the nominal UE maximum transmit power, or the rated UE maximum transmit power.

[0304] Articles In this disclosure, where articles are added by translation, such as a, an, and the in English, the disclosure may include that the nouns following these articles are plural.

[0305] <"Different"> In the present disclosure, the term "A and B are different" may mean "A and B are different from each other." Note that the term may also mean "A and B are each different from C." Terms such as "separate" and "coupled" may also be interpreted in the same way as "different."

[0306] One aspect of the present disclosure is useful in wireless communication systems.

[0307] 10 Base station 20 Device 101, 202 Transmitter 102, 201 Receiver 103, 203 Controller

Claims

1. A device with lower complexity than an NB-IoT (Narrow Band Internet of Things) device, comprising: a control unit that generates transmission / reception related information related to energy for transmitting a PDRCH or receiving a PRDCH; and a transmission unit that transmits the transmission / reception related information.

2. The device according to claim 1, wherein the transmission / reception related information is information indicating whether another PRDCH can be transmitted or whether another PRDCH can be received.

3. The device according to claim 1, wherein the transmission / reception related information is information indicating the number of transmittable PDRCHs or the number of receivable PRDCHs.

4. The device according to claim 1, wherein the transmission / reception related information is information indicating a period during which a PDRCH can be transmitted or a period during which a PRDCH can be transmitted.

5. A wireless communication device that communicates with a device of lower complexity than an NB-IoT (Narrow Band Internet of Things) device, comprising: a receiving unit that receives transmission / reception related information related to energy for transmitting a PDRCH or receiving a PRDCH in the device; and a control unit that performs scheduling based on the transmission / reception related information.

6. A communication method in which a device with lower complexity than an NB-IoT (Narrow Band Internet of Things) device generates transmission / reception related information related to energy for transmitting a PDRCH or receiving a PRDCH, and transmits the transmission / reception related information.

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