Terminal, wireless base station, and wireless communication method

Abstract

This terminal is provided with: a transmission unit that transmits capability information of the terminal related to a non-terrestrial network to a wireless base station; and a control unit that executes communication setup via the non-terrestrial network on the basis of the capability information. When a terrestrial network node located in the air exists between the terminal and the wireless base station, the terminal transmits additional capability information of the terminal that is applicable when using the terrestrial network node.

Description

Terminal, wireless base station, and wireless communication method

[0001] The present disclosure relates to a terminal, a radio base station, and a radio communication method that use a non-terrestrial network.

[0002] The 3rd Generation Partnership Project (3GPP: registered trademark) is developing specifications for the 5th generation mobile communication system (5G, also known as New Radio (NR) or Next Generation (NG)), and is also developing specifications for the next generation, known as Beyond 5G, 5G Evolution, or 6G.

[0003] Furthermore, in order to provide various services to areas that could not be covered by the mobile communication network (PLMN: Public Land Mobile Network), which has mainly been based on the terrestrial network (TN: Terrestrial Network), cooperation with the non-terrestrial network (NTN: Non-Terrestrial Network) is expected.

[0004] For example, a multi-layered network using geostationary orbit satellites (GEO), low earth orbit satellites (LEO), and high-altitude platform stations (HAPS) is being considered (Patent Document 1).

[0005] When a network including a radio base station (gNB) uses a network including such satellites, it decides whether to operate as a TN or NTN before configuring the gNB. A terminal (User Equipment, UE) can transmit nonTerrestrialNetwork-r17 to the network as the NTN UE-NR-Capability (Non-TerrestrialNetwork-r17).

[0006] Unless the UE is notified by the network that it will be operated as an NTN, it will operate under the assumption that it will use a TN, i.e., perform various communication settings, even when using a network via a satellite as described above.

[0007] International Publication No. 2023 / 053298

[0008] 3GPP TS 38.331 V17.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Radio Resource Control (RRC) protocol specification (Release 17), 3GPP, June 2023

[0009] HAPS operates at a different altitude than UAVs (Unmanned Aerial Vehicles) and GEO / LEO. Specifically, the line-of-sight distance between HAPS and UE can be approximately 100 km, making it an aerial node at a special altitude that lies on the borderline of what is acceptable for a TN in 3GPP.

[0010] When a network that passes through HAPS is operated as a TN, UEs in a cell that passes through that TN will not be able to utilize the capability to support NTN, even if they have that capability, and the network (gNB) will treat the UEs as terminals for a normal TN.

[0011] Therefore, the following disclosure has been made in consideration of this situation, and aims to provide a terminal, a wireless base station, and a wireless communication method that can execute appropriate communication settings according to the terminal capabilities, even when passing through a specially-altitude airborne node such as a HAPS.

[0012] One aspect of the present disclosure is a terminal comprising a transmitter (capability information transmitter 320) that transmits capability information of a terminal related to a non-terrestrial network to a radio base station, and a control unit (control unit 340) that performs communication configuration via the non-terrestrial network based on the capability information, wherein the transmitter is a terminal that transmits additional capability information of the terminal that is applied when using a terrestrial network node located in the air, if the terrestrial network node is present between the terminal and the radio base station.

[0013] FIG. 1 is a schematic diagram of the overall configuration of a wireless communication system 10. FIG. 2 is a functional block diagram of a UE 300. FIG. 3 is a functional block diagram of a gateway device 100. FIG. 4 is a diagram showing an example of a communication distance between a gateway device (gNB) and a UE 300 via a HAPS. FIG. 5 is a diagram showing an example of a transmission sequence of UE Capability Information (Extra-TN capability). FIG. 6 is a diagram showing an example of the configuration of an Extra TN dedicated cell and a TN cell formed via an airborne TN node. FIG. 7 is a diagram showing an example of functions that may be required in an Extra TN dedicated cell. FIG. 8 is a diagram showing an example of the hardware configuration of the gateway device 100 and the UE 300. FIG. 9 is a diagram showing an example of the configuration of a vehicle 2001.

[0014] Hereinafter, embodiments will be described with reference to the drawings. Note that the same or similar reference numerals are used to designate the same functions or configurations, and descriptions thereof will be omitted as appropriate.

[0015] (1) Overall Schematic Configuration of Wireless Communication System Fig. 1 is a diagram showing the overall schematic configuration of a wireless communication system 10 according to this embodiment. As shown in Fig. 1, the wireless communication system 10 is composed of a terrestrial network (TN) and a non-terrestrial network (NTN).

[0016] In this embodiment, the TN may include a mobile communication network (PLMN: Public Land Mobile Network) conforming to the specifications of the 5th generation mobile communication system (also referred to as 5G, New Radio (NR) or Next Generation (NG)) of the 3rd Generation Partnership Project (3GPP: registered trademark), or the next-generation specifications called Beyond 5G, 5G Evolution, or 6G. The PLMN may include the 5GC 30, the data network 40, and a gNB 170 (Terrestrial gNB), which is a radio base station installed on the ground. Note that the PLMN may also include a radio access network (NG-RAN), not shown, etc.

[0017] 5GC30 is a core network (CN) conforming to 5G. A data network 40 may be connected to 5GC30. The data network 40 is a communication network that relays data (user data) transmitted and received by a terminal 300 (UE300, User Equipment, UE), and may include the Internet. Hereinafter, the various networks described above will be collectively referred to simply as a network as appropriate.

[0018] NTNs may include geostationary orbit satellites (GEO150), low earth orbit satellites (LEO160), and high-altitude platform stations (HAPS200). GEO150 may be a satellite located at an altitude of approximately 36,000 km and having a geostationary orbit. LEO160 may be a satellite located at an altitude of 500 to 2,000 km and orbiting every 88 to 127 minutes. HAPS200 may be a circular flying vehicle located at an altitude of 8 to 50 km.

[0019] It should be noted that the line-of-sight distance between UE 300 and each satellite (which may be interpreted as the straight-line distance between UE 300 and a ground position directly below the satellite) may be longer. For example, in the case of HAPS 200, this distance may be on the order of 100 km.

[0020] GEO150, LEO160, and HAPS200 may each be connected to the gateway device 100 via a wireless link. A wireless link between the gateway device 100 and GEO150, LEO160, or HAPS200 may be referred to as a feeder link (FL). Also, a wireless link between the GEO150, LEO160, or HAPS200 and the UE300 may be referred to as a service link (SL).

[0021] The GEO150, LEO160, and HAPS200 (relay station equipment) can be either transparent or regenerative (see 3GPP TR 38.821 V16.0.0). The regenerative type may also be called a regenerative relay type or base station type, in which the functions of a radio base station (or part of them) are installed on the satellite (GEO150, LEO160, HAPS200).

[0022] The retransmission type may also be called a repeater type or a non-regenerative repeater type, and the radio base station function is not installed on the satellite. In the case of the retransmission type, the radio base station function may be installed in the gateway device 100 or in a network node separate from the gateway device 100 that is provided closer to the 5GC 30 than the gateway device 100.

[0023] In this way, the wireless communication system 10 cooperates with the TN (PLMN) to configure a multi-layer network (NTN) using the GEO 150, the LEO 160, or the HAPS 200. The UE 300 can be seamlessly connected to the TN (PLMN) via the GEO 150, the LEO 160, or the HAPS 200.

[0024] In the wireless communication system 10 including TN and NTN, two types of cells may be formed. Specifically, TN cell C TN and NTN Cell C NTN may be formed.

[0025] The network (operator) is TN Cell C TN or NTN Cell C NTN The UE 300 may configure a gNB (or a gateway device) after determining in advance whether to operate the UE 300 as an NTN cell C. NTN Unless otherwise notified, TN Cell C TN It may be assumed that

[0026] That is, even in the case of cells formed via GEO150, LEO160 or HAPS200, the TN cell C TN The UE 300 may be operated as a TN cell C TN In this case, special implementation is required for cells via GEO150 and LEO160, where the delay in the wireless section is large. In cells via HAPS200, communication is possible up to a certain cell radius even with gNB operation as a normal TN. In this way, in a multi-layer network such as the wireless communication system 10, TN cell C TN and NTN Cell C NTN As mentioned above, the cells via GEO150 and LEO160 are NTN Cell C NTN , gNB170 (Terrestrial gNB), cells via HAPS200 are TN cell C TN It may be operated as.

[0027] On the other hand, NTN Cell C NTN When operated as a NR NTN, even in cells via GEO150 and LEO160, where the delay in the wireless section is large, communication is possible according to the NR NTN specifications defined by 3GPP. Note that, even in cells via HAPS200, communication is possible according to the NR NTN specifications, but in the case of cells via HAPS200, where the delay is not as large as that via GEO150 and LEO160, there are aspects of over-spec in terms of synchronization establishment procedures, etc. Therefore, cells via HAPS200 are usually TN cell C TNFrom this perspective, HAPS200 may be interpreted as not being a component of NTN.

[0028] NTN Cell C NTN When the cell is operated as an NTN cell C, the UE 300 receives notification information from the network, specifically, System Information Block (SIB) 1, thereby determining that the cell is an NTN cell C. NTN If the UE 300 is an NTN-capable UE, the UE 300 connects to the cell. In other words, only NTN-capable UEs can access the NTN cell C. NTN can be connected to.

[0029] In addition, after receiving SIB1, UE300 receives additional notification information, specifically SIB19, from the network, which notifies information necessary for NTN access, and can perform synchronization establishment processing for NTN (NTN-specific sync) based on SIB19.

[0030] (2) Functional Block Configuration of Wireless Communication System Next, a functional block configuration of the wireless communication system 10 will be described. Specifically, the functional block configurations of the gateway device 100 and the UE 300 will be described. For convenience of explanation, the following description will start with the UE 300.

[0031] (2.1) UE 300 Fig. 2 is a functional block diagram of the UE 300. As shown in Fig. 2, the UE 300 includes a radio communication unit 310, a capability information transmission unit 320, a handover execution unit 330, and a control unit 340.

[0032] The wireless communication unit 310 transmits and receives wireless signals conforming to 5G (or 6G, etc.). Specifically, the wireless communication unit 310 transmits uplink signals (UL signals) conforming to 5G and receives downlink signals (DL signals) conforming to 5G.

[0033] The wireless communication unit 310 is a TN cell C TN or NTN Cell C NTN Specifically, the wireless communication unit 310 is configured to allow the UE 300 to perform wireless communication via the TN cell C. TNWhen the UE 300 is located within the NTN cell C, the UE 300 communicates directly with the gNB 170. NTN When the device is located within the GEO 150 or LEO 160, the device communicates with the gateway device 100 (wireless base station function) via the GEO 150 or LEO 160.

[0034] The cell formed through LEO160 or HAPS200 is a TN cell C TN It may be operated as NTN Cell C NTN It may be operated as.

[0035] The capability information transmission unit 320 transmits capability information of the UE 300 to the network. In particular, in this embodiment, the capability information transmission unit 320 can transmit capability information of the UE 300 related to a non-terrestrial network (NTN) to a radio base station (gNB). In this embodiment, the capability information transmission unit 320 constitutes a transmission unit.

[0036] Specifically, the capability information transmission unit 320 can transmit nonTerrestrialNetwork-r17 (see 3GPP TS38.331) as the UE-NR-Capability for NTN. The UE-NR-Capability is an information element (IE) that conveys the support status of the NR UE Radio Access Capability Parameters specified in 3GPP TS38.306. The nonTerrestrialNetwork-r17 is included in the UE-NR-Capability and can indicate whether the UE 300 supports NTN.

[0037] When a terrestrial network node located in the air (referred to as an airborne TN node) exists between the UE 300 and the gNB (which may include the gateway device 100), the capability information transmission unit 320 may transmit extra capability information of the UE 300 that is applied when using the airborne TN node. Specifically, the capability information transmission unit 320 can transmit specific UE Capability Information (Extra-TN capability) that is applied when an airborne TN node exists on the path between the UE 300 and the gNB.

[0038] An airborne TN node is typically a HAPS 200, but may also include a LEO 160. An airborne TN node may be interpreted as a node that constitutes a network that exists in the air but is operated as a TN rather than an NTN in terms of network type. The Extra-TN capability may be configured by Capability Parameters (or a part thereof) according to nonTerrestrialNetwork-r17 of the 3GPP NTN specification, and the Capability Parameters may be configured by the TN cell C. TN The Extra-TN capability may be configured by at least a part of the Capability Parameters of other IEs related to NTN (for example, NTN-Parameters-r17) as well as nonTerrestrialNetwork-r17.

[0039] In this way, the capability information transmission unit 320 can transmit Extra-TN capability information including at least a part of the UE Capability Information of the UE 300 regarding NTN.

[0040] The content of the Extra-TN capability is not particularly limited, but may include, for example, pre-compensation of UL transmission by the UE 300, extension of conditional handover (CHO), use of Mapped Cell ID, etc. CHO can execute handover initiated by the UE 300 when a specific execution condition is met. If CHO is not applicable, a normal handover may be executed (which may also be called CHO recovery). Mapped Cell ID is used as identification information indicating a specific area regardless of the NTN payload or the type of service link.

[0041] The Extra-TN capability may also modify the performance of an existing function of the UE 300. For example, the Extra-TN capability may be configured by capability information that is applied only when communicating via an airborne TN node. Specifically, as capabilities that are applied only when communicating via an airborne TN node, at least some of the capabilities specified in 3GPP TS38.306, such as the frequency band used, transmission power, carrier aggregation (CA) support, and the number of repetitions of the UL physical channel, may be specified. Furthermore, such capabilities that are applied only when communicating via an airborne TN node may not be applied when communicating directly with a gNB 170 (Terrestrial gNB).

[0042] Extra-TN capability may be defined as a dedicated capability that is applied only when communicating via an airborne TN node, or it may be common to capabilities that are applied when communicating via a TN and / or NTN.

[0043] The capability information transmission unit 320 may transmit an Extra-TN capability indicating that communication via an airborne TN node is supported. That is, when communication via an airborne TN node is performed, the capability information transmission unit 320 may transmit an Extra-TN capability including information indicating that communication via an airborne TN node is supported.

[0044] Furthermore, the capability information transmission unit 320 may transmit the Extra-TN capability for each frequency band or combination of frequency bands to be used. That is, the Extra-TN capability may be set for each band or each combination of bands. Alternatively, the Extra-TN capability may be set for each UE.

[0045] The handover execution unit 330 executes handover of the UE 300. Specifically, the handover execution unit 330 executes handover (which may include CHO) from a source cell to a target cell. The handover execution unit 330 executes handover of the UE 300 from a source cell to a target cell. TN From NTN Cell C NTN Handover to NTN Cell C NTN From TN cell C TN A handover to the

[0046] In addition, TN cell C TN By switching the feeder link (FL), NTN cell C NTN Similarly, NTN Cell C NTN is the power supply voltage of the TN cell C TN In this case, a relay station device such as the HAPS 200 may execute the handover. Such a change in satellite (route) due to switching of the FL may be called site diversity in the FL.

[0047] The control unit 340 controls each functional block constituting the UE 300. In particular, in this embodiment, the control unit 340 executes control based on capability information of the UE 300 (UE Capability Information).

[0048] Specifically, the control unit 340 can perform various communication settings according to the UE Capability Information of the UE 300. For example, the control unit 340 performs communication settings when going through a TN based on the UE Capability Information. The control unit 340 also performs communication settings when going through an NTN.

[0049] The communication settings may refer to the radio resource settings required to connect to a radio base station (gNB) via a TN or NTN, such as the band to be used, transmission power, CA support, and CHO-related settings.

[0050] In this way, the control unit 340 may perform communication setup via the NTN based on the UE Capability Information of the UE 300.

[0051] (2.2) Gateway Device 100 Fig. 3 is a functional block configuration diagram of the gateway device 100. As shown in Fig. 3, the gateway device 100 includes a network connection unit 110, an FL communication unit 120, a capability information receiving unit 130, and a control unit 140. As described above, the gateway device 100 may be equipped with the functionality of a radio base station (gNB).

[0052] The network connection unit 110 provides a connection interface with the 5GC 30. The network connection unit 110 has a specific interface (for example, an NG interface) between the gateway device 100 and the 5GC 30 defined in 3GPP, and can execute a connection with the 5GC 30.

[0053] The FL communication unit 120 performs wireless communication with the GEO 150, the LEO 160, or the HAPS 200 via a wireless link (feeder link). The frequency band for the feeder link (FL) may be different for the GEO 150, the LEO 160, and the HAPS 200, or may be the same or a similar frequency band. The frequency band of the FL for the HAPS 200 may be higher than the frequency bands of the FL for the GEO 150 and the LEO 160. For example, the millimeter wave (38 GHz) band may be used as the frequency band of the FL for the HAPS 200.

[0054] The capability information receiving unit 130 receives the capability information (UE Capability Information) of the UE 300. The capability information receiving unit 130 may receive the UE Capability Information transmitted from the UE 300 via the TN, or may receive the UE Capability Information transmitted from the UE 300 via the NTN.

[0055] The UE Capability Information may be transmitted in response to a system information block (SIB) transmitted from the network, or may be transmitted autonomously by the UE 300. Alternatively, the UE Capability Information may be transmitted from the UE 300 in response to a request from the network.

[0056] The UE Capability Information may include the above-mentioned Extra-TN capability. When an airborne TN node such as HAPS 200 exists between UE 300 and the capability information receiver 130, the capability information receiver 130 may receive the Extra-TN capability of UE 300 that is applied when using the airborne TN node. In this embodiment, the capability information receiver 130 constitutes a receiver.

[0057] The control unit 140 controls each functional block constituting the gateway device 100. In particular, in this embodiment, the control unit 140 executes communication setting of the UE 300 via the TN or NTN based on UE Capability Information transmitted from the UE 300.

[0058] The control unit 140 may execute communication settings via an air TN node based on the Extra-TN capability received from the UE 300. Specifically, the control unit 140 can execute settings related to the band to be used, transmission power, CA support, and CHO that are applied to the UE 300 based on the Extra-TN capability.

[0059] (3) Operation of the Wireless Communication System Next, a description will be given of the operation of the wireless communication system 10. Specifically, a description will be given of an example of the operation of the gateway device 100 (gNB) and the UE 300 when passing through a specially high altitude airborne node (airborne TN node) such as a HAPS.

[0060] (3.1) Premise and Issues As mentioned above, the network (operator) TN or NTN Cell C NTNThe UE 300 may configure a gNB (gateway device) after determining in advance whether to operate the UE 300 as an NTN cell C. NTN Unless otherwise notified, TN Cell C TN It may be assumed that

[0061] TN Cell C via GEO and LEO, which have large wireless delays TN In order to operate it as a TN cell, a special implementation is required. TN When operating as such, communication is possible up to a certain cell radius even with normal TN settings.

[0062] NTN Cell C via GEO and LEO NTN When operating as an NTN cell, NR NTN communication is possible with a certain level of quality guaranteed by 3GPP regulations. NR NTN communication is also possible when using HAPS, but as mentioned above, it is somewhat over-specified. The UE can determine by SIB1 that the cell is an NTN cell C. NTN Only UEs that recognize the NTN and support the NTN (NTN-capable UEs) can connect to the NTN. The UE also performs a synchronization establishment procedure (NTN-specific sync) based on SIB19.

[0063] Figure 4 shows an example of the communication distance between a gateway device (gNB) and a UE 300 via a HAPS. In the TN specifications of 3GPP Release-17, the maximum distance between a RU (Radio Unit) installed in a HAPS and a UE is approximately 100 km (due to the constraints of PRACH (Physical Random Access Channel) Preamble format 1, which has the longest cyclic prefix (CP) length).

[0064] When a UE initially accesses an RU (when transmitting a PRACH), the RU must receive signals from the zero-distance terminal (closest UE) and the farthest UE within the cell within a common FFT (Fast Fourier Transform) window, and the CP length for PRACH format 1 is 684.38 μs. Therefore, the one-way distance conversion is: 684.38 μs × 300,000 km / s × 1 / 2 (from the RACH occasion to the PRACH Rx at the radio base station) = 102.657 km.

[0065] Unlike UAVs, GEO / LEO, etc., the communication distance via HAPS is approximately 100 km, which is the maximum distance supported by the TN specifications of 3GPP Release 17. In the case of a retransmission type (non-regenerative relay type), the distance between RU and UE can be approximately 40 to 200 km.

[0066] In 3GPP Release-17, a UE can transmit nonTerrestrialNetwork-r17 as the UE-NR-Capability for NTN. However, in 3GPP Release-17, there is no UE-specific capability for connecting to an airborne TN node such as HAPS. Therefore, even if the UE has a capability to support NTN, the gateway device (gNB) does not use the capability and connects to the TN cell C as a normal UE that only supports TN. TN Therefore, even when communicating via an airborne TN node, it is not possible to change parameters specific to that airborne TN node (such as the frequency band used, transmission power, carrier aggregation (CA) support, and the number of UL physical channel repetitions). In other words, even when communicating via an airborne TN node, only the same specifications (communication settings) as when communicating directly with a gNB170 (Terrestrial gNB) can be used.

[0067] On the other hand, NTN Cell C NTN When operated as NTN Cell C NTNUEs in the nonTerrestrialNetwork-r17 can notify the gateway device (gNB) of their NTN capabilities. This allows the gateway device (gNB) to flexibly control the UE, such as by configuring its communication settings as a UE that supports NTN.

[0068] (3.2) Operational Example In the following operational example, when a UE communicates with a gateway device (gNB) via an airborne TN node such as a HAPS, an operational example is described in which a special UE capability for connecting to the airborne TN node, specifically, an Extra-TN capability, is transmitted to the gNB.

[0069] Figure 5 shows an example of a transmission sequence for UE Capability Information (Extra-TN capability). As shown in Figure 5, the UE receives an SIB (e.g., SIB1) broadcast within the cell from the gNB. The SIB may include an information element (IE) indicating a TN or NTN. The SIB may also include an IE (or field) indicating that the TN is via an airborne TN node such as a HAPS. Note that the SIB is not limited to SIB1, and may be another SIB (e.g., SIB19).

[0070] Based on the information element included in the SIB, the UE determines whether the network (cell) to be used (connected) is a TN (cell) or an NTN (cell).

[0071] Here, if the network used by the UE is a TN (which may include a TN via an airborne TN node), the UE may transmit UE Capability Information including the Extra-TN capability to the gNB. The UE and the gNB perform communication configuration for the UE based on the Extra-TN capability.

[0072] Figure 6 shows an example of the configuration of an Extra TN dedicated cell and a TN cell formed via an airborne TN node. As shown in Figure 6, an Extra TN (Ex-TN) dedicated cell may be formed, whose distance to the HAPS (RU) may exceed 100 km, and UE 300 may be located in the Ex-TN dedicated cell. UE 300 capable of transmitting Extra-TN capability can communicate with HAPS 200 (airborne TN node) regardless of the TN communication distance constraints. UE 300 with Extra-TN capability can improve communication performance by, for example, increasing transmission power compared to when connected to gNB 170 (Terrestrial gNB).

[0073] On the other hand, in the case of a UE 300p that does not have the Extra-TN capability, communication settings like those of the UE 300 cannot be made, and an area that becomes a coverage hole for the UE 300p may occur.

[0074] The Extra-TN capability may be interpreted as a specific capability that applies when an airborne TN node exists on the path between the UE and the gNB (gateway device). By transmitting the Extra-TN capability from the UE 300, the gNB can perform specific control according to the Extra-TN capability, as described above. This function is new and is not specified in the TN-related specifications of 3GPP.

[0075] The Extra-TN capability may be interpreted as utilizing (at least part of) the existing non-TerrestrialNetwork-r17 capability even in a TN cell. Figure 7 shows an example of functionality that may be required in an Extra TN dedicated cell.

[0076] For example, such functions may include pre-compensation of UL transmission, CHO extension, and use of Mapped Cell ID.

[0077] The Extra-TN capability may also be a capability that changes the performance of an existing capability. For example, at least some of the features specified in 3GPP TS38.306, such as the frequency band to be used, transmission power, support for carrier aggregation (CA), and the number of repetitions for the UL physical channel, may be specified as the Extra-TN capability.

[0078] In this way, the Extra-TN capability may be defined as a capability exclusive to airborne TN nodes, and UE 300 may always report support for the Extra-TN capability in order to perform communication via airborne TN nodes.

[0079] Alternatively, the Extra-TN capability may be common to the Capability applied when communicating via a TN and / or an NTN. Even in this case, UE 300 may always report support for the Extra-TN capability in order to perform communication via an airborne TN node.

[0080] (3.3) Variations As mentioned above, a HAPS is a typical example of an airborne TN node, but it may also include various nodes in the sky, such as satellites, aircraft, drones, helicopters, or balloons. Furthermore, an airborne TN node may function as a wireless relay device (such as a repeater, relay, or IAB (Integrated Access and Backhaul) node) intervening between other wireless communication nodes.

[0081] The radio base station (gNB) may exist on the ground or in the air, and the gNB functions may be located separately on the ground and in the air (for example, a CU (Central Unit) may be located on the ground and a DU (Distributed Unit) may be located in the air).

[0082] Furthermore, the UE may not only be a typical smartphone located on the ground, but may also be located in the air, such as a HAPS, satellite, aircraft, drone, helicopter, or balloon.

[0083] The granularity applied to the Extra-TN capability may be, for example, per band (band combinations). New bands (band combinations) for Extra-TN (cells) may be defined. Just as Air-to-Ground (ATG) can report new capabilities to the band for the ATG, new capabilities may be reported to the band for Extra-TN.

[0084] Furthermore, the granularity applied to the Extra-TN capability may be set for each UE, and the Capability value reported may vary for each UE.

[0085] (3.4) Actions and Effects According to the above-described operation example, when an airborne TN node exists between the UE and the gNB (gateway device), the UE can transmit the Extra-TN capability. Based on the Extra-TN capability, the network (gNB) can perform appropriate communication settings according to the characteristics of the TN that passes through the airborne TN node. In this way, the TN cell C formed by the airborne TN node TN This can increase the communication distance and improve the communication performance of UEs within the network.

[0086] For example, when using HAPS, the line (channel) margin can be secured by increasing the UE transmission power compared to when connecting to a Terrestrial gNB. In addition, the NTN specifications stipulate that UE pre-compensate for UL transmission timing, which can alleviate the restriction of communication distances up to approximately 100 km.

[0087] This also allows NTN Cell C to communicate via air nodes. NTN In the event that TN Cell C is unable to operate as a TN This can enhance the operational specifications and improve the flexibility of the network.

[0088] For example, if 10 cells are formed via HAPS, it is possible to operate a mixture of TN cells and NTN cells. TNIn this case, 10 cells are operated, and among them, a communication setting that can improve performance may be applied to UEs that have Extra-TN capability. TN However, for UEs having Extra-TN capability, a communication setting that can improve performance may be applied.

[0089] (4) Other Embodiments Although the embodiments have been described above, it will be obvious to those skilled in the art that the present invention is not limited to the description of the embodiments, and that various modifications and improvements are possible.

[0090] For example, in the above-described embodiment, the name "Extra-TN capability" is used, but a different name may be used if it is a UE capability that is applied when using a TN via an airborne TN node such as HAPS. Furthermore, when using the airborne TN node, a new network name (e.g., Intermediate Network) may be assigned to distinguish it from TN and NTN.

[0091] In addition, the gateway device (ground station device) may have some or all of the functions of a gNB.

[0092] Also, in the above description, configure, activate, update, indicate, enable, specify, and select may be interchangeable. Similarly, link, associate, correspond, and map may be interchangeable, and allocate, assign, monitor, and map may be interchangeable.

[0093] Furthermore, specific, dedicated, UE-specific, and UE-dedicated may be interchangeable. Similarly, common, shared, group-common, UE-common, and UE-shared may be interchangeable.

[0094] The block diagrams (FIGS. 2 and 3) used to explain the above-described embodiments show functional blocks. These functional blocks (components) are realized by any combination of hardware and / or 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 connected directly or indirectly (e.g., via wire, wireless, etc.) and these multiple devices. The functional block may also be realized by combining software with the single device or multiple devices.

[0095] Functions include, but are not limited to, judgment, determination, judgment, 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 each is implemented.

[0096] Furthermore, the gateway device 100 and the UE 300 (the devices) described above may function as a computer that performs processing of the wireless communication method of the present disclosure. Fig. 8 is a diagram showing an example of the hardware configuration of the devices. As shown in Fig. 8, the devices may be 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.

[0097] In the following description, the term "apparatus" can be interpreted as a circuit, a device, a unit, etc. The hardware configuration of the apparatus 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.

[0098] Each functional block of the device (see FIGS. 2 and 3) is realized by any hardware element of the computer device or a combination of the hardware elements.

[0099] In addition, each function of the device is realized by loading specified software (programs) onto hardware such as processor 1001 and memory 1002, causing processor 1001 to perform calculations, control communication via communication device 1004, and control at least one of reading and writing data in memory 1002 and storage 1003.

[0100] The processor 1001 controls the entire computer by running, for example, an operating system, and may be configured as a central processing unit (CPU) including an interface with peripheral devices, a control unit, an arithmetic unit, and registers.

[0101] 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 these. The programs used are those that cause a computer to execute at least some of the operations described in the above-described embodiments. Furthermore, the various processes described above may be executed by a single processor 1001, or may 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 be transmitted from a network via a telecommunications line.

[0102] The memory 1002 is a computer-readable recording medium and may be configured by at least one of, for example, 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 may store a program (program code), a software module, etc., capable of executing a method according to an embodiment of the present disclosure.

[0103] Storage 1003 is a computer-readable recording medium, and may be, for example, at least one of an optical disk such as a Compact Disc ROM (CD-ROM), a hard disk drive, a flexible disk, a magneto-optical disk (e.g., a compact disk, a digital versatile disk, a Blu-ray disc), a smart card, a flash memory (e.g., a card, a stick, a key drive), a floppy disk, a magnetic strip, etc. Storage 1003 may also be referred to as an auxiliary storage device. The above-mentioned recording medium may be, for example, a database, a server, or other suitable medium including at least one of memory 1002 and storage 1003.

[0104] 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 called, for example, a network device, a network controller, a network card, or a communication module.

[0105] The communication device 1004 may be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. to realize, for example, at least one of Frequency Division Duplex (FDD) and Time Division Duplex (TDD).

[0106] 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. Note that the input device 1005 and the output device 1006 may be integrated into one device (e.g., a touch panel).

[0107] Furthermore, each device such as the processor 1001 and the memory 1002 is connected to 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.

[0108] Furthermore, the device 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.

[0109] Furthermore, the notification of information is not limited to the aspects / embodiments described in the present disclosure, and may be performed using other methods. For example, the 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., RRC signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB))), other signals, or a combination thereof. Furthermore, the 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.

[0110] Each aspect / embodiment described in the present disclosure may be applied to at least one of a system using Long Term Evolution (LTE), LTE-Advanced (LTE-A), SUPER 3G, IMT-Advanced, a 4th generation mobile communication system (4G), a 5th generation mobile communication system (5G), a 6th generation mobile communication system (6G), an xth generation mobile communication system (xG) (where x is, for example, an integer or a decimal), Future Radio Access (FRA), New Radio (NR), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), or other suitable system, and a next-generation system extended based on these. Furthermore, a combination of multiple systems (e.g., a combination of at least one of LTE and LTE-A with 5G) may also be applied.

[0111] The order of the procedures, sequences, flowcharts, etc. of each aspect / embodiment described in this disclosure may be changed unless it is consistent. 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.

[0112] In the present disclosure, a specific operation 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 (e.g., MME or 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 (e.g., MME and S-GW) may also be used.

[0113] Information, signals (information, etc.) may be output from a higher layer (or a lower layer) to a lower layer (or a higher layer), or may be input and output via multiple network nodes.

[0114] The input and output information may be stored in a specific location (for example, a memory) or may be managed using a management table. The input and output information may be overwritten, updated, or added to. The output information may be deleted. The input information may be transmitted to another device.

[0115] The determination may be made based on a value represented by one bit (0 or 1), a Boolean value (true or false), or a numerical comparison (e.g., comparison with a predetermined value).

[0116] The aspects / embodiments described in this disclosure may be used alone, in combination, or switched depending on the implementation. Notification of predetermined information (e.g., notification that "X is true") is not limited to explicit notification, but may be implicit (e.g., not notifying the predetermined information).

[0117] 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.

[0118] 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.

[0119] The information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0120] 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.

[0121] As used in this disclosure, the terms "system" and "network" are used interchangeably.

[0122] Furthermore, the information, parameters, etc. 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.

[0123] 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.

[0124] In this 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. Base stations may also be referred to by terms such as macrocell, small cell, femtocell, and picocell.

[0125] A base station can accommodate one or more (e.g., three) cells (also called sectors). When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be divided into multiple smaller areas, and each smaller area can be provided with communication services by a base station subsystem (e.g., a small indoor base station (Remote Radio Head: RRH)).

[0126] The terms "cell" or "sector" refer to part or all of the coverage area of ​​a base station and / or base station subsystem that provides communication services within that coverage area.

[0127] 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.

[0128] In this disclosure, the terms "Mobile Station (MS)," "user terminal," "User Equipment (UE)," "terminal," etc. may be used interchangeably.

[0129] 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.

[0130] 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 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 also include devices that do not necessarily move during communication operations. For example, at least one of the base station and the mobile station may be an Internet of Things (IoT) device such as a sensor.

[0131] Furthermore, a base station in the present disclosure may be read as a mobile station (user terminal, the same applies hereinafter). For example, the aspects / embodiments of the present disclosure may be applied to a configuration in which communication between a base station and a mobile station is replaced with communication between multiple mobile stations (which may be called, for example, Device-to-Device (D2D) or Vehicle-to-Everything (V2X)). In this case, the mobile station may be configured to have the functions of a base station. Furthermore, terms such as "uplink" and "downlink" may be read as terms corresponding to terminal-to-terminal communication (for example, "side"). For example, terms such as an uplink channel and a downlink channel may be read as a side channel (or sidelink).

[0132] Similarly, a mobile station in the present disclosure may be interpreted as a base station, in which case the base station may have the functions of a mobile station.

[0133] 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.

[0134] Numerology may be communication parameters that apply to the transmission and / or reception of a signal or channel, such as 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.

[0135] A slot may consist of one or more symbols in the time domain (such as an Orthogonal Frequency Division Multiplexing (OFDM) symbol, a Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol, etc.) A slot may be a numerology-based time unit.

[0136] A slot may include multiple minislots. Each minislot may consist of one or more 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.

[0137] 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.

[0138] For example, one subframe may be referred to as a transmission time interval (TTI), multiple consecutive subframes may be referred to as a TTI, or one slot or one minislot may be referred to as 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 (e.g., 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.

[0139] Here, TTI refers to, for example, the smallest time unit for scheduling in wireless communication. For example, in an LTE system, a base station schedules each user terminal to allocate radio resources (such as frequency bandwidth and transmission power that can be used by each user terminal) in TTI units. Note that the definition of TTI is not limited to this.

[0140] 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.

[0141] In addition, 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, and the number of slots (minislots) constituting the minimum time unit for scheduling may be controlled.

[0142] A TTI having a time length of 1 ms may be referred to as 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 referred to as a shortened TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, etc.

[0143] 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 equal to or greater than 1 ms.

[0144] 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.

[0145] 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, each of which may consist of one or more resource blocks.

[0146] 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.

[0147] 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.

[0148] 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 given BWP and numbered within that BWP.

[0149] 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.

[0150] At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a predetermined signal / channel outside the active BWP. Note that the terms "cell," "carrier," etc. in this disclosure may be read as "BWP."

[0151] The above-described structures of the radio frame, subframe, slot, minislot, and symbol are merely examples. For example, the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included 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, and other configurations may be changed in various ways.

[0152] 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.

[0153] The reference signal may also be abbreviated as Reference Signal (RS) and may be called a pilot depending on the applicable standard.

[0154] 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."

[0155] The "means" in the configuration of each of the above devices may be replaced with "part," "circuit," "device," etc.

[0156] As used in this disclosure, any reference to an element using a designation such as "first," "second," etc. 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 therein or that the first element must precede the second element in some way.

[0157] 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.

[0158] 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 in the plural form.

[0159] 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 in a table, database, or other data structure), ascertaining, 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. 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.

[0160] In the present disclosure, the term "A and B are different" may mean "A and B are different from each other." 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."

[0161] 9 shows an example of the configuration of a vehicle 2001. As shown in Fig. 9, the vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, an axle 2009, an electronic control unit 2010, various sensors 2021 to 2029, an information service unit 2012, and a communication module 2013.

[0162] The drive unit 2002 is composed of, for example, an engine, a motor, or a hybrid of an engine and a motor. The steering unit 2003 includes at least a steering wheel (also 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. The electronic control unit 2010 is composed of a microprocessor 2031, memory (ROM, RAM) 2032, and a communication port (IO port) 2033. Signals from various sensors 2021 to 2027 provided in the vehicle are input to the electronic control unit 2010. The electronic control unit 2010 may also be called an ECU (Electronic Control Unit).

[0163] The signals from the various sensors 2021 to 2028 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.

[0164] 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 for controlling these devices. The information service unit 2012 uses information acquired from external devices via the communication module 2013, etc., to provide various types of multimedia information and multimedia services to the occupants of the vehicle 1.

[0165] 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.

[0166] The driving assistance system unit 2030 is composed of various devices that provide functions for preventing accidents and reducing the driver's driving burden, 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. The driving assistance system unit 2030 also transmits and receives various information via the communication module 2013 to realize driving assistance functions or autonomous driving functions.

[0167] The communication module 2013 can communicate with the microprocessor 2031 and components of the vehicle 1 via the communication port. For example, the communication module 2013 transmits and receives data via the communication port 2033 to and from a driving unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, an axle 2009, a microprocessor 2031 and memory (ROM, RAM) 2032 in the electronic control unit 2010, and sensors 2021 to 2028, which are provided in the vehicle 2001.

[0168] 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.

[0169] The communication module 2013 may transmit at least one of signals from the above-mentioned various sensors 2021 to 2028 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 2028, 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.

[0170] The communication module 2013 receives various information (traffic information, traffic signal information, vehicle-to-vehicle information, etc.) transmitted from external devices and displays it on an information service unit 2012 provided in the vehicle. 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 (or data / information decoded from the PDSCH) received by the communication module 2013). The communication module 2013 also stores the 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, left and right front wheels 2007, left and right rear wheels 2008, axles 2009, sensors 2021 to 2028, and the like provided in the vehicle 2001.

[0171] 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.

[0172] (Additional Note) The above disclosure may be expressed as follows: A first feature is a terminal including: a transmitter that transmits capability information of a terminal related to a non-terrestrial network to a radio base station; and a controller that performs communication setup via the non-terrestrial network based on the capability information, wherein, when a terrestrial network node located in the air is present between the terminal and the radio base station, the transmitter transmits additional capability information of the terminal that is applied when the terrestrial network node is used.

[0173] In a second feature based on the first feature, the transmitter transmits the additional capability information including at least a part of the capability information.

[0174] In a third feature based on the first or second feature, the transmitter transmits the additional capability information indicating that communication via the terrestrial network node is supported.

[0175] A fourth feature based on the first to third features is that the transmitter transmits the additional capability information for each frequency band to be used or each combination of the frequency bands to be used.

[0176] 10 Wireless communication system 30 5GC 40 Data network 100 Gateway device 110 Network connection unit 120 FL communication unit 130 Capability information receiving unit 140 Control unit 150 GEO 160 LEO 170 gNB 200 HAPS 300, 300p UE 310 Wireless communication unit 320 Capability information transmitting unit 330 Handover execution unit 340 Control unit 1001 Processor 1002 Memory 1003 Storage 1004 Communication device 1005 Input device 1006 Output device 1007 Bus 2001 Vehicle 2002 Drive unit 2003 Steering unit 2004 Accelerator pedal 2005 Brake pedal 2006 Shift lever 2007 Left and right front wheels 2008 Left and right rear wheels 2009 Axle 2010 Electronic control unit 2012 Information service unit 2013 Communication module 2021 Current sensor 2022 RPM sensor 2023 Air pressure sensor 2024 Vehicle speed sensor 2025 Acceleration sensor 2026 Brake pedal sensor 2027 Shift lever sensor 2028 Object detection sensor 2029 Accelerator pedal sensor 2030 Driving assistance system unit 2031 Microprocessor 2032 Memory (ROM, RAM) 2033 Communication port

Claims

1. A transmitter that transmits terminal capability information related to a non-terrestrial network to a radio base station, and a controller that executes communication settings via the non-terrestrial network based on the capability information. When a terrestrial network node located in the air exists between the terminal and the radio base station, the transmitter is a terminal that transmits additional capability information of the terminal applied when using the terrestrial network node.

2. The terminal according to claim 1, wherein the transmitter transmits the additional capability information including at least a part of the capability information.

3. The terminal according to claim 1, wherein the transmitter transmits the additional capability information indicating support for communication via the terrestrial network node.

4. The terminal according to claim 1, wherein the transmitter transmits the additional capability information for each frequency band or combination of frequency bands to be used.

5. A radio base station comprising a receiver that receives additional capability information of the terminal applied when using a terrestrial network node when the terrestrial network node located in the air exists between the radio base station and the terminal, and a controller that executes communication settings via the terrestrial network node based on the additional capability information.

6. A wireless communication method including a step of transmitting terminal capability information related to a non-terrestrial network to a radio base station, a step of executing communication settings via the non-terrestrial network based on the capability information, and a step of transmitting additional capability information of the terminal applied when using a terrestrial network node when the terrestrial network node located in the air exists between the terminal and the radio base station.

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