Terminal, wireless base station, and wireless communication method

Abstract

A terminal is provided with: a transmission unit that transmits terminal capability information relating to a non-terrestrial network to a wireless base station; and a control unit that executes communication settings via the non-terrestrial network on the basis of the capability information. When a ground network node located in the air is present between the terminal and a wireless base station, the terminal transmits additional capability information of the terminal to be applied when the ground network node is used.

Description

TECHNICAL FIELD

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

[0002] The Third Generation Partnership Project (3GPP: Registered Trademark) is standardizing a fifth-generation mobile communication system (also referred to as 5G, New Radio (NR), or Next Generation (NG)), and is also standardizing the next generation, which is referred to as Beyond 5G, 5G Evolution, or 6G.

[0003] Furthermore, in order to realize provision of various services to areas that have not been covered by a mobile communication network (PLMN: Public Land Mobile Network) mainly through a terrestrial network (TN) so far, cooperation with a non-terrestrial network (NTN) is envisaged.

[0004] For example, a multi-layer network utilizing geostationary orbit satellites (GEO), low earth orbit satellites (LEO), and high-altitude pseudo-satellites (HAPS) is being studied (Patent Literature 1).

[0005] A network including a radio base station (gNB) is constituted after deciding which of TN or NTN to operate with in the case of utilizing a network including such a satellite. A terminal (User Equipment, UE) is able to transmit nonTerrestrialNetwork-r17 as UE-NR-Capability of an NTN to the network as an NTN (Non-Patent Literature 1).

[0006] The UE performs actions with the premise of utilizing TN even in the case of utilizing the above-described network via a satellite as long as it is not notified from the network to operate as an NTN, that is, performs various communication settings, and the like.

[0007] PRIOR ART DOCUMENTS

[0008] PATENT LITERATURE

[0009] Patent Literature 1: International Publication No. 2023 / 053298

[0010] NON-PATENT LITERATURE

[0011] Non-Patent Literature 1: 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 SUMMARY

[0012] A HAPS is highly different from a UAV (Unmanned Aerial Vehicle), a GEO / LEO, and the like. Specifically, a line-of-sight distance between a HAPS and a UE is sometimes approximately 100 km or so, and is a special height of an aerial node located on a boundary line that TNs can tolerate in 3GPP.

[0013] In a case where a network via a HAPS operates as a TN, even if a UE within a cell via the TN has a capability capable of supporting an NTN, the capability cannot be used, and the network (gNB) handles the UE as a general TN-oriented terminal.

[0014] Therefore, the following disclosure is made in view of such a situation, and aims to provide a terminal, a wireless base station, and a wireless communication method that can perform appropriate communication setting corresponding to a terminal capability even in a case via a special-height aerial node such as a HAPS.

[0015] One embodiment of the present disclosure is a terminal including a transmission unit (capability information transmission unit 320) that transmits capability information of the terminal related to a non-terrestrial network to a wireless base station, and a control unit (control unit 340) that performs communication setting via the non-terrestrial network based on the capability information, the transmission unit transmitting additional capability information of the terminal that is applied in a case where a terrestrial network node located in the air exists between the terminal and the wireless base station. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a whole schematic configuration diagram of a wireless communication system 10.

[0017] Figure 2 is a functional block configuration diagram of a UE 300.

[0018] Figure 3 is a functional block configuration diagram of a gateway device 100.

[0019] Figure 4 is a diagram showing an example of a communication distance between a gateway device (gNB) and a UE 300 via a HAPS.

[0020] Figure 5 is a diagram showing an example of a transmission timing of UE Capability Information (Extra-TN capability).

[0021] Figure 6 is a diagram showing an example of a structure of an Extra TN dedicated cell and a TN cell formed via an aerial TN node.

[0022] Figure 7 is a diagram showing an example of functions that can be required in an Extra TN dedicated cell.

[0023] Figure 8 is a diagram showing an example of a hardware structure of a gateway device 100 and a UE 300.

[0024] Figure 9 is a diagram showing an example of a structure of a vehicle 2001. DETAILED DESCRIPTION

[0025] Hereinafter, an embodiment will be described with reference to the drawings. In addition, the same or similar reference numerals are assigned to the same or similar functions and structures, and the description thereof will be appropriately omitted.

[0026] (1) Overall schematic structure of wireless communication system

[0027] Figure 1 is a diagram showing an overall schematic structure of a wireless communication system 10 of the present embodiment. As shown in Figure 1 , the wireless communication system 10 is configured of a terrestrial network (TN) and a non-terrestrial network (NTN).

[0028] In the present embodiment, the TN can include a mobile communication network (PLMN: Public Land Mobile Network) that complies with the specifications of the fifth generation mobile communication system (also referred to as 5G, New Radio (NR), or Next Generation (NG)) of the third generation partnership project (3GPP: registered trademark) or the specifications of the next generation referred to as Beyond 5G, 5G Evolution, or 6G. The PLMN can include a 5GC 30, a data network 40, and a wireless base station, i.e., gNB 170 (Terrestrial gNB), and the like provided on the ground. In addition, the PLMN can include a wireless access network (NG-RAN) and the like, which are not illustrated.

[0029] 5GC30 is a 5G core network (CN). 5GC30 can connect to data network 40. Data network 40 is a communication network that relays data (user data) sent and received by terminal 300 (UE300, User Equipment), and may also include the Internet. Hereinafter, the various networks mentioned above will be collectively referred to as "networks" for simplicity and appropriate reference.

[0030] NTN can include geostationary orbit satellites (GEO: Geostationary Orbit satellite, GEO150), low Earth orbit satellites (LEO: Low Earth Orbit satellite, LEO160), and high-altitude platform stations (HAPS: High-Altitude Platform Station, HAPS200). GEO150 can be a satellite in a geostationary orbit at an altitude of approximately 36,000 km. LEO160 can also be a satellite orbiting at an altitude of 500–2,000 km with a period of 88–127 minutes. HAPS200 can also be a spacecraft orbiting at an altitude of 8–50 km.

[0031] Additionally, it should be noted that the line-of-sight distance between UE300 and each satellite (or, as can be interpreted, the straight-line distance between UE300 and the ground position directly below the satellite) may become longer. For example, in the case of HAPS200, this distance is sometimes around 100 km.

[0032] GEO150, LEO160, and HAPS200 can be connected to gateway device 100 via wireless links. The wireless link between gateway device 100 and GEO150, LEO160, or HAPS200 can also be referred to as a feeder link (FL). Additionally, the wireless link between GEO150, LEO160, or HAPS200 and UE300 can also be referred to as a serving link (SL).

[0033] Furthermore, as a relay station device, the GEO150, LEO160, and HAPS200 can be implemented using either transparent or regenerative methods (see 3GPP TR 38.821 V16.0.0). The regenerative type can also be called a regenerative relay or base station type, where the functionality (or part thereof) of the wireless base station is carried on a satellite (GEO150, LEO160, HAPS200).

[0034] Transparent forwarding type, also known as repeater type or non-regenerative repeater type, does not involve the wireless base station function being carried on a satellite. In the case of transparent forwarding type, the wireless base station function can also be carried on the gateway device 100 or on a network node located on the 5GC30 side, separate from the gateway device 100.

[0035] In the wireless communication system 10, a multi-layered network (NTN) based on GEO150, LEO160, or HAPS200 is formed in cooperation with the TN (PLMN). The UE300 can be seamlessly connected to the TN (PLMN) via GEO150, LEO160, or HAPS200.

[0036] In the wireless communication system 10 that includes TN and NTN, two types of cells can be formed. Specifically, TN cells C can be formed. TN and NTN community C NTN .

[0037] The network (operator) can pre-determine whether it is a TN cell or a C cell. TN To run or as NTN cell C NTN After it starts running, it forms a gNB (or gateway device). This is only necessary if there is no NTN cell C from the network. NTN The notification indicates that UE300 can be considered as a TN cell C. TN And to perform the action.

[0038] In other words, even in the case of cells formed via GEO150, LEO160, or HAPS200, it can be used as a TN cell C. TN When running, UE300 can be used as an access TN cell C TN The UE performs the action. In this case, special implementation is required in cells with large latency via the radio interval, such as GEO150 and LEO160. In cells via HAPS200, even as a normal TN gNB, communication can be maintained up to a certain cell radius. As mentioned above, in a multi-layer network such as wireless communication system 10, TN cell C TN and NTN community C NTN They can coexist. As mentioned above, cells via GEO150 and LEO160 can serve as NTN cells C. NTN Cells operating via gNB170 (Terrestrial gNB) and HAPS200 can function as TN cells. TN run.

[0039] On the other hand, as NTN cell CNTN In operation, even in GEO150 and LEO160 cells with significant latency across the radio band, communication can still be performed according to the NR NTN specifications defined by 3GPP. Furthermore, while communication can also be performed according to the NR NTN specifications in HAPS200 cells, the latency difference compared to GEO150 and LEO160 cells via HAPS200 cells is relatively small, resulting in some overspecification in aspects such as synchronization establishment steps. Therefore, HAPS200 cells can typically be used as TN cells. TN To run. Furthermore, from this perspective, HAPS200 can also be interpreted as not being a component of NTN.

[0040] In the NTN cell C NTN In operation, the UE300 identifies the cell as an NTN cell C by receiving broadcast information from the network, specifically System Information Block (SIB) 1. NTN UE300 connects to this cell when the terminal is an NTN-capable UE. In other words, only NTN-capable UEs can connect to NTN cell C. NTN connect.

[0041] In addition, after receiving SIB1, UE300 receives additional broadcast information from the network, specifically SIB19, which contains information required for broadcasting NTN access, and is able to perform NTN-specific synchronization establishment processing based on SIB19.

[0042] (2) Functional block structure of wireless communication system

[0043] Next, the functional block structure of the wireless communication system 10 will be described. Specifically, the functional block structures of the gateway device 100 and the UE 300 will be described. For ease of explanation, the description will begin with the UE 300.

[0044] (2.1) UE300

[0045] Figure 2 This is the function block structure diagram of UE300. (Example) Figure 2 As shown, the UE300 includes a wireless communication unit 310, a capability information transmission unit 320, a handover execution unit 330, and a control unit 340.

[0046] The wireless communication unit 310 transmits or 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.

[0047] Wireless communication unit 310 can be transmitted via TN cell C TN or NTN cell C NTN Perform wireless communication. Specifically, the wireless communication unit 310 is located in TN cell C of UE300. TN In the case of internal communication, it communicates directly with gNB170. Furthermore, the wireless communication unit 310, when the UE300 is located in NTN cell C... NTN In the case of internal communication, it communicates with the gateway device 100 (wireless base station function) via GEO150 or LEO160.

[0048] Furthermore, cells formed via LEO160 or HAPS200 can serve as TN cells. TN To run, or as an NTN cell C NTN Run it.

[0049] The capability information sending unit 320 sends UE 300 capability information to the network. Specifically, in this embodiment, the capability information sending unit 320 can send UE 300 capability information related to the non-terrestrial network (NTN) to a gNB. In this embodiment, the capability information sending unit 320 constitutes a sending unit.

[0050] Specifically, the capability information transmission unit 320 can transmit nonTerrestrialNetwork-r17 (refer to 3GPP TS 38.331) as the UE-NR-Capability for NTN. UE-NR-Capability is an information element (IE) that conveys the support status of NR UE Radio Access Capability Parameters as specified in 3GPP TS 38.306. nonTerrestrialNetwork-r17 is included in UE-NR-Capability and can indicate whether UE 300 supports NTN.

[0051] When an airborne terrestrial network node (referred to as an airborne TN node) exists between the UE300 and the gNB (which may include the gateway device 100), the capability information transmission unit 320 can transmit additional capability information of the UE300 when utilizing the airborne TN node. Specifically, the capability information transmission unit 320 can transmit unique UE Capability Information (Extra-TNcapability: Extra-TN capability) applied when an airborne TN node exists on the path between the UE300 and the gNB.

[0052] Airborne TN nodes are typically HAPS200s, but can also include LEO160s, etc. Airborne TN nodes can also be interpreted as nodes that exist in the air but operate as TN networks, not NTN. Extra-TN capability can be composed of (or a portion thereof) the capability parameters (based on non-Terrestrial Network-r17) of the 3GPP NTN specification. These capability parameters are defined in TN cell C. TN It can also be utilized in the middle. In addition, the Extra-TN capability can be composed not only of nonTerrestrialNetwork-r17, but also of at least a portion of the Capability Parameters related to NTN based on other IEs (e.g., NTN-Parameters-r17).

[0053] In this way, the capability information sending unit 320 can send Extra-TN capability information, which includes at least a portion of the UE Capability Information of the UE 300 related to the NTN.

[0054] The content of Extra-TN capability is not particularly limited. For example, it may include pre-compensation for UL transmissions by UE300, extensions to Conditional Handover (CHO), and the use of Mapped Cell IDs. CHO enables UE300-led handover when specific execution conditions are met. In cases where CHO cannot be applied, a normal handover (also known as CHO recovery) can be performed. The Mapped Cell ID is used as identification information representing a specific geographical area, independent of the NTN payload and the type of serving link.

[0055] Furthermore, the Extra-TN capability can modify the performance of existing functions of the UE300. For example, Extra-TN capability can consist of capability information that applies only when communicating via an airborne TN node. Specifically, as a capability that applies only when communicating via an airborne TN node, at least some of the parameters specified in 3GPP TS38.306, such as the band used, transmit power, support for carrier aggregation (CA), and the number of repetitions of the UL physical channel, can be specified. Moreover, such a capability that applies only when communicating via an airborne TN node may not be applied to direct communication with the gNB170 (Terrestrial gNB).

[0056] Extra-TN capability can be defined as a dedicated capability that is applied only when communicating via airborne TN nodes, or it can be common to capabilities applied when communicating via TN and / or NTN.

[0057] The capability information transmission unit 320 can also transmit Extra-TN capability indicating support for communication via airborne TN nodes. In other words, when performing communication via airborne TN nodes, the capability information transmission unit 320 can also transmit Extra-TN capability containing information indicating support for airborne TN nodes.

[0058] Furthermore, the capability information transmission unit 320 can also transmit the Extra-TN capability for each frequency band or combination of frequency bands used. That is, the Extra-TN capability can be set for each frequency band or combination of frequency bands. Alternatively, the Extra-TN capability can also be set for each UE.

[0059] The handover execution unit 330 performs the handover for UE300. Specifically, the handover execution unit 330 performs the handover from the source cell to the target cell (which may include a CHO). The handover execution unit 330 can also perform the handover from TN cell C TN To NTN cell C NTN The handover, or from NTN cell C NTN To TN cell C TN Switching.

[0060] In addition, TN cell C TN It can also be changed to NTN cell C by switching the feeder link (FL). NTN Similarly, NTN cell C NTN It can also be changed to TN cell C by switching the feeder link (FL). TN In this case, relay station devices such as HAPS200 can also perform handover. The change in satellite (path) caused by such FL handover can also be referred to as site diversity in FL.

[0061] The control unit 340 controls each functional block constituting the UE 300. In particular, in this embodiment, the control unit 340 performs control based on the UE 300's capability information.

[0062] Specifically, the control unit 340 can execute various communication settings corresponding to the UE Capability Information of the UE 300. For example, based on the UE Capability Information, the control unit 340 executes communication settings for the case via the TN. In addition, the control unit 340 executes communication settings for the case via the NTN.

[0063] Communication settings can refer to the configuration of wireless resources required for connecting to a wireless base station (gNB) via TN or NTN. Examples include settings such as frequency band usage, transmit power, CA support, and CHO-related settings.

[0064] In this way, the control unit 340 can perform communication settings via NTN based on the UE Capability Information of the UE300.

[0065] (2.2) Gateway device 100

[0066] Figure 3 This is a functional block structure diagram of the gateway device 100. (Example) Figure 3As shown, 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 can be equipped with the functions of a wireless base station (gNB).

[0067] The network connection unit 110 provides a connection interface with the 5GC30. The network connection unit 110 has a specific interface (e.g., NG interface) between the gateway device 100 and the 5GC30 as specified in 3GPP, and is capable of performing a connection with the 5GC30.

[0068] The FL communication unit 120 performs wireless communication with the GEO150, LEO160, or HAPS200 via a wireless link (feeder link). The frequency band used by the feeder link (FL) can be different for each GEO150, LEO160, or HAPS200, but it can also be the same or a similar frequency band. The frequency band of the FL facing the HAPS200 can be higher than the frequency band of the FL facing the GEO150 or LEO160. For example, the millimeter wave (38 GHz) band can be used as the frequency band for the FL facing the HAPS200.

[0069] Capability information receiving unit 130 receives UE Capability Information from UE300. Capability information receiving unit 130 can receive UE Capability Information sent from UE300 via TN or via NTN.

[0070] UE Capability Information can be sent based on System Information Blocks (SIBs) sent from the network, or it can be sent autonomously by the UE300. Alternatively, UE Capability Information can also be sent from the UE300 upon request from the network.

[0071] The UE Capability Information may include the aforementioned Extra-TN capability. The Capability Information Receiving Unit 130 can receive the Extra-TN capability of the UE300 when utilizing the air TN node, provided that an air TN node such as HAPS200 exists between the UE300 and the UE. In this embodiment, the Capability Information Receiving Unit 130 is configured as a receiving unit.

[0072] The control unit 140 controls each functional block constituting the gateway device 100. In particular, in this embodiment, the control unit 140 performs communication settings for the UE300 via the TN or NTN based on the UE Capability Information sent from the UE300.

[0073] The control unit 140 can perform communication settings via the air TN node based on the Extra-TN capability received from the UE300. Specifically, the control unit 140 can perform settings such as the frequency band used by the UE300 application, transmission power, CA support, and CHO-related settings based on the Extra-TN capability.

[0074] (3) Operation of wireless communication system

[0075] Next, the operation of the wireless communication system 10 will be explained. Specifically, examples of the operation of the gateway device 100 (gNB) and UE300 in the case of air nodes (air TN nodes) at a particularly high altitude such as HAPS will be explained.

[0076] (3.1) Prerequisites and topics

[0077] As mentioned above, the network (operator) can pre-determine whether to use a TN cell C. TN Running or as NTN cell C NTN After running, it forms a gNB (gateway device). This is only necessary if there is no network connection from NTN cell C. NTN The notification indicates that UE300 can be considered as a TN cell C. TN And to perform the action.

[0078] In GEO and LEO, which have large delays in the radio band, and as TN cell C TN In operation, a special implementation is required. Additionally, when using HAPS as a TN cell (C...) TN When in operation, even with a normal TN setting, communication is possible up to a certain cell radius.

[0079] After passing through GEO and LEO and serving as NTN cell C NTN When operational, it can perform NR NTN-based communication with a certain quality guaranteed according to 3GPP specifications. It can also perform NR NTN communication via HAPS, but as mentioned above, there are slight over-spec aspects. The UE learns that the cell is NTN cell C via SIB1. NTNOnly UEs that support NTN (NTN-capable UEs) can connect to NTN. Furthermore, the UE performs a synchronization establishment procedure based on SIB19 (NTN-specific sync).

[0080] Figure 4 This illustrates an example of the communication distance between the gateway device (gNB) via HAPS and the UE300. In the TN-oriented specification of 3GPP Release-17, the maximum distance between the RU (Radio Unit) and the UE mounted on HAPS is approximately 100km (due to the limitation of PRACH (Physical Random Access Channel) preamble format 1, which has the longest cyclic prefix (CP) length).

[0081] When a UE initially accesses the RU (during PRACH transmission), the RU needs to receive signals from the nearest and farthest UEs within the cell within a common FFT (Fast Fourier Transform) window. The CP length for PRACH format 1 is 684.38 μs. Therefore,

[0082] • One-way distance conversion: 684.38μs × 300,000 km / s × 1 / 2 (RACH Occasion ~ PRACH Rx in wireless base stations) = 102.657 km

[0083] The communication distance via HAPS differs from that of UAV, GEO / LEO, etc. It is a special high-altitude air node with a maximum distance of approximately 100km, which is supported by the TN-oriented specification of 3GPP Release-17. In addition, in the case of transparent forwarding (non-reproducible relay), the distance between RU and UE can be approximately 40~200km.

[0084] In 3GPP Release-17, a UE can send non-Terrestrial Network-r17 as its UE-NR-Capability for NTN. However, in 3GPP Release-17, there is no UE-specific capability for connecting to airborne TN nodes such as HAPS. Therefore, even if the UE has NTN support capabilities, the gateway device (gNB) does not use these capabilities and controls the TN cell C as a typical UE that only supports TN. TNThe UE is located within the air TN node. Therefore, even when communicating via an air TN node, the parameters specific to that air TN node (band used, transmit power, support for carrier aggregation (CA), number of repetitions of the UL physical channel, etc.) cannot be changed. That is, even when communicating via an air TN node, only the same specifications (communication settings) as when communicating directly with gNB170 (Terrestrial gNB) can be adopted.

[0085] On the other hand, when used as NTN cell C NTN During operation, NTN cell C NTN The UE within the network can notify the gateway device (gNB) of its NTN capability via non-Terrestrial Network-r17. Therefore, the gateway device (gNB) can treat it as an NTN-enabled UE and perform its communication settings, enabling flexible control.

[0086] (3.2) Example of an action

[0087] The following action example illustrates the action of sending a special UE capability, specifically an Extra-TNcapability, to the gNB for connecting to the air TN node when the UE communicates with the gateway device (gNB) via an air TN node such as HAPS.

[0088] Figure 5 This shows an example of the transmission timing for UE Capability Information (Extra-TN capability). Figure 5 As shown, the UE receives an SIB (e.g., SIB1) broadcast within the cell by the gNB. This SIB may include an Information Element (IE) representing a TN or NTN. Additionally, the SIB may also contain an IE (or field) indicating whether the TN is transmitted via an airborne TN node such as HAPS. Furthermore, it is not limited to SIB1; other SIBs may also be included (e.g., SIB19).

[0089] The UE determines whether the network (cell) it is using (connected to) is TN (cell) or NTN (cell) based on the information elements contained in the SIB.

[0090] Here, when the network used is TN (which may include TN via an airborne TN node), the UE can send UE Capability Information containing Extra-TN capability to the gNB. The UE and gNB then perform communication settings for the UE based on this Extra-TN capability.

[0091] Figure 6 This illustrates a structural example of an Extra TN dedicated cell and a TN cell formed via an airborne TN node. For example... Figure 6 As shown, an Extra TN (Ex-TN) dedicated cell can be formed at a distance of potentially more than 100 km from the HAPS (RU), and the UE300 can camp on this Ex-TN dedicated cell. The UE300, capable of transmitting Extra-TN capability, can communicate with the HAPS200 (airborne TN node) without being limited by the TN communication distance. The UE300 with Extra-TN capability can improve communication performance, for example, by increasing its transmit power compared to a gNB170 (Terrestrial gNB) connection.

[0092] On the other hand, without Extra-TN capability, the UE300p cannot perform the same communication settings as the UE300, which may create areas with coverage gaps for the UE300p.

[0093] Extra-TN capability can be interpreted as a unique capability applied when an over-the-air TN node exists in the path between the UE and the gNB (gateway device). By transmitting the Extra-TN capability through the UE300, the gNB can perform specific controls corresponding to the Extra-TN capability, as described above. This functionality is a new feature not specified in the 3GPP TN-related specifications.

[0094] Extra-TN capability can be interpreted as even TN cells utilizing (at least a portion of) the capabilities based on the existing non-Terrestrial Network-r17. Figure 7 Examples of features that may be required in Extra TN private cells are shown.

[0095] For example, the use of UL's pre-compensation, CHO extension, and Mapped Cell ID can be cited as examples of this function.

[0096] Furthermore, the Extra-TN capability can modify the performance of existing functions. For example, at least some of the parameters specified in 3GPP TS38.306, such as the frequency band used, transmit power, support for carrier aggregation (CA), and the number of repetitions of the UL physical channel, can be specified as Extra-TN capability.

[0097] Thus, the Extra-TN capability can be defined as a capability dedicated to the airborne TN node, and the UE300 may be required to report support for the Extra-TN capability in order to perform communications via the airborne TN node.

[0098] Alternatively, the Extra-TN capability may be common to the capabilities used when communicating via the TN and / or NTN. In this case, the UE300 may also need to report support for the Extra-TN capability in order to perform communications via airborne TN nodes.

[0099] (3.3) Deformation

[0100] As mentioned above, typical examples of airborne TN nodes are HAPS, but they are not limited to HAPS; they can also include various nodes that exist in the air, such as satellites, aircraft, drones, helicopters, or balloons. In addition, airborne TN nodes can also function as wireless relay devices between other wireless communication nodes (repeater, relay station, or IAB (Integrated Access and Backhaul) nodes, etc.).

[0101] A ground-based wireless base station (gNB) can exist on the ground or in the air. The functions of a gNB can be configured separately on the ground and in the air (e.g., a CU (Central Unit) can be configured on the ground and a DU (Distributed Unit) can be configured in the air).

[0102] In addition, UEs are not only ordinary smartphones existing on the ground, but can also exist in the air like HAPS, satellites, aircraft, drones, helicopters or balloons.

[0103] Regarding the granularity applied to Extra-TN capability, it can be set to per band (band combinations). New bands (band combinations) can also be defined for Extra-TN (cells). Similar to the ability to report new frequency bands for Air-to-Ground (ATG) for frequency bands for that ATG, the ability to report new frequency bands for Extra-TN can also be implemented.

[0104] Furthermore, the granularity applied to Extra-TN capability can be set to per UE, or the value of the capability reported per UE can be changed.

[0105] (3.4) Functions and Effects

[0106] Based on the above example, when an airborne TN node exists between the UE and the gNB (gateway device), the UE can send Extra-TN capability. The network (gNB) can then use this Extra-TN capability to perform appropriate communication settings corresponding to the characteristics of the TN via the airborne TN node. This enables the realization of TN cell C formed by the airborne TN node. TN The communication distance of the UE within the device is increased and the communication performance is improved.

[0107] For example, by increasing the UE's transmit power only via HAPS compared to a Terrestrial gNB connection, line (channel) margin can be ensured. Furthermore, by pre-compensating for UE-based UL transmit timing as specified in the NTN specification, the limitation up to approximately 100km in communication range can be mitigated.

[0108] Furthermore, this means that even via an air node, it cannot serve as an NTN cell C. NTN To operate or not to act as NTN cell C NTN When in operation, it enables TN cell C TN The standardization of operation can improve the flexibility of the network.

[0109] For example, when 10 cells are formed via HAPS, a mixed operation mode of TN and NTN cells can be considered. Specifically, the 10 cells can be configured as TN cells. TN During operation, communication settings that improve performance can be applied to UEs with Extra-TN capability. Furthermore, TN cell C can also be formed to communicate with UEs without NTN capability. TN However, communication settings that can improve performance can be applied to UEs with Extra-TN capability.

[0110] (4) Other implementation methods

[0111] The above describes the implementation method, but it is not limited to the described implementation method. Various modifications and improvements can be made, which will be obvious to those skilled in the art.

[0112] For example, in the above implementation, the name Extra-TN capability is used, but any capability of the UE that is used when utilizing TN via an airborne TN node such as HAPS can also be called by other names. In addition, in the case of using this airborne TN node, a new network name can be given in order to distinguish it from TN and NTN (e.g., Intermediate Network).

[0113] In addition, the gateway device (ground station device) may also have some or all of the functions of the gNB.

[0114] Furthermore, in the above description, the terms configure, activate, update, indicate, enable, specify, and select can be interchanged. Similarly, the terms link, associate, correspond, and map can be interchanged, as can allocate, assign, monitor, and map.

[0115] Furthermore, specific, dedicated, UE specific, and UE dedicated can be used interchangeably. Similarly, common, shared, group-common, UE common, and UE shared can also be used interchangeably.

[0116] The block structure diagram used in the description of the above embodiments ( Figure 2 , Figure 3 The diagram illustrates blocks organized by function. These functional blocks (components) are implemented through any combination of at least one of hardware and software. Furthermore, there are no particular limitations on the implementation method of each functional block. That is, each functional block can be implemented using a single device that is physically or logically combined, or by directly or indirectly (e.g., using wired, wireless, etc.) connecting two or more physically or logically separate devices. Functional blocks can be implemented by combining software with the aforementioned single or multiple devices.

[0117] The functions include judgment, decision, determination, calculation, calculation, processing, derivation, investigation, search, confirmation, receiving, sending, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, consideration, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assigning, but are not limited to these. For example, the functional block (structural part) that enables sending is called the transmitting unit or transmitter. In short, as mentioned above, there are no particular limitations on the implementation method.

[0118] Furthermore, the aforementioned gateway device 100 and UE300 (the device) can function as a computer for processing wireless communication methods according to the present disclosure. Figure 8 This is a diagram illustrating an example of the hardware structure of the device. (As shown) Figure 8 As shown, the device can also be configured as a computer device including a processor 1001, a memory 1002, a storage device 1003, a communication device 1004, an input device 1005, an output device 1006, and a bus 1007.

[0119] Additionally, in the following description, the term "device" can be replaced with "circuit," "device," "unit," etc. The hardware structure of this device can be configured as either a device comprising one or more of the illustrated components, or a device that does not comprise any of the components.

[0120] The functional blocks of the device (reference) Figure 2 , Figure 3 This can be achieved through any hardware element or combination of hardware elements in the computer device.

[0121] Furthermore, the functions of the device are implemented by reading predetermined software (programs) into hardware such as processor 1001 and memory 1002, so that processor 1001 performs calculations and controls communication of communication device 1004 or controls at least one of reading and writing data in memory 1002 and storage device 1003.

[0122] The processor 1001 controls the computer as a whole by instructing the operating system to operate. The processor 1001 may also be a central processing unit (CPU) that includes interfaces with peripheral devices, control devices, arithmetic units, registers, etc.

[0123] Furthermore, the processor 1001 reads programs (program code), software modules, data, etc., from at least one direction of memory 1002 in the storage device 1003 and the communication device 1004, and performs various processes accordingly. The program is used to cause the computer to perform at least a portion of the actions described in the above embodiments. Moreover, the various processes described above can be executed by one processor 1001, or by two or more processors 1001 simultaneously or sequentially. The processor 1001 can also be implemented using one or more chips. Additionally, the program can be transmitted from a network via a telecommunications line.

[0124] The memory 1002 is a computer-readable recording medium, and may be composed of at least one of the following: read-only memory (ROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), and random access memory (RAM). The memory 1002 may be referred to as a register, cache memory, main memory (main storage device), etc. The memory 1002 may store programs (program code), software modules, etc., capable of executing the methods involved in one embodiment of this disclosure.

[0125] Storage device 1003 is a computer-readable recording medium, and may be composed of at least one of the following: optical discs such as CD-ROM (Compact Disc ROM), hard disk drives, floppy disks, magneto-optical discs (e.g., compact discs, digital multipurpose discs, Blu-ray discs), smart cards, flash memory (e.g., cards, sticks, key drives), floppy disks, magnetic stripes, etc. Storage device 1003 may also be referred to as an auxiliary storage device. The aforementioned recording medium may, for example, be a database, server, or other suitable media that includes at least one of memory 1002 and storage device 1003.

[0126] The communication device 1004 is hardware (transceiver) used for communication between computers via at least one of a wired network and a wireless network. For example, it may also be called a network device, network controller, network card, communication module, etc.

[0127] The communication device 1004 may also 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).

[0128] Input device 1005 is an input device that accepts input from external sources (e.g., keyboard, mouse, microphone, switch, button, sensor, etc.). Output device 1006 is an output device that performs output to external sources (e.g., display, speaker, LED, etc.). Alternatively, input device 1005 and output device 1006 can also be integrated (e.g., a touch panel).

[0129] Furthermore, devices such as processor 1001 and memory 1002 are connected via bus 1007 for communicating information. Bus 1007 can be a single bus or can be composed of different buses between devices.

[0130] Furthermore, the device can be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (PLD), and a field-programmable gate array (FPGA), which can be used to implement some or all of the functional blocks. For example, the processor 1001 can also be implemented using at least one of these hardware components.

[0131] Furthermore, the notification of information is not limited to the forms / implementations described in this disclosure, and other methods may also be used. For example, the notification of information may be implemented through 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 combinations thereof. In addition, RRC signaling may also be referred to as an RRC message, for example, it may be an RRC Connection Setup message, an RRC Connection Reconfiguration message, etc.

[0132] The various forms / implementations described in this disclosure can also be applied to systems utilizing Long Term Evolution (LTE), LTE-Advanced (LTE-A), Super 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG) (x being, for example, an integer or 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, and Ultra-Wideband (UMB). A system of at least one of UWB, Bluetooth (registered trademark), other suitable systems, and next-generation systems based on these systems. Furthermore, multiple systems can be combined (e.g., a combination of at least one of LTE and LTE-A with 5G, etc.) for application.

[0133] The processing steps, timing, and processes described in this disclosure can be rearranged in order without contradiction. For example, the illustrated order is used to indicate the elements of each step in the methods described in this disclosure, but the order is not limited to the specific order indicated.

[0134] In this disclosure, certain actions performed by the base station are sometimes also performed by its upper node, depending on the circumstances. In a network consisting of one or more network nodes having a base station, it is obvious that various actions performed to communicate with a terminal can be performed by at least one of the base station and other network nodes besides the base station (e.g., considering an MME or S-GW, but not limited to these). The above illustration depicts a single network node other than the base station, but it can also be a combination of multiple other network nodes (e.g., an MME and an S-GW).

[0135] Information and signals (such as data) can be output from a higher (or lower) layer to a lower (or higher) layer. They can also be input or output through multiple network nodes.

[0136] Input or output information can be stored in a specific location (e.g., memory) or managed using a management table. Input and output information can be overwritten, updated, or appended. Output information can also be deleted. Input information can also be sent to other devices.

[0137] The determination can be made by the value represented by 1 bit (0 or 1), by a Boolean value (Boolean: true or false), or by comparing numerical values ​​(e.g., comparing with a predetermined value).

[0138] The various forms / implementations described in this disclosure can be used individually, in combination, or switched between each other during execution. Furthermore, the notification of predetermined information (e.g., a "It is X" notification) is not limited to being explicit, but can also be implicit (e.g., not notifying the predetermined information).

[0139] Software, whether called software, firmware, middleware, microcode, hardware description language, or by other names, should be broadly interpreted as referring to commands, command sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, etc.

[0140] In addition, software, commands, and information can also be sent and received via transmission media. For example, when software is sent from a website, server, or other remote source using at least one of wired technologies (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL) etc.) and wireless technologies (infrared, microwave, etc.), at least one of these wired and wireless technologies is included within the definition of transmission media.

[0141] The information, signals, etc., described in this disclosure can also be represented using any of a variety of different technologies. For example, the data, commands, instructions, information, signals, bits, symbols, chips, etc., that may be involved in the above description can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination of these.

[0142] Furthermore, the terms used in this disclosure and those necessary for understanding this disclosure may be replaced with terms that have the same or similar meanings. For example, at least one of the channel and symbol may also be a signal (signaling). Additionally, a signal may also be a message. Furthermore, a component carrier (CC) may also be referred to as carrier frequency, cell, frequency carrier, etc.

[0143] The terms “system” and “network” as used in this disclosure are used interchangeably.

[0144] Furthermore, the information, parameters, etc., described in this disclosure may be represented using absolute values, relative values ​​to predetermined values, or other corresponding information. For example, wireless resources may also be indicated using indexes.

[0145] The names used for the above parameters are non-limiting in any respect. Furthermore, the formulas, etc., using these parameters may sometimes differ from those explicitly disclosed in this disclosure. Various channels (e.g., PUCCH, PDCCH, etc.) and information elements can be identified by any appropriate name, and therefore the various names assigned to these channels and information elements are non-limiting in any respect.

[0146] In this disclosure, the terms "Base Station (BS)," "wireless base station," "fixed station," "NodeB," "eNodeB (eNB)," "gNodeB (gNB)," "access point," "transmission point," "reception point," "transmission / reception point," "cell," "sector," "cell group," "carrier," and "component carrier" are used interchangeably. Sometimes, terms such as macro cell, small cell, femtocell, and picocell are also used to refer to base stations.

[0147] 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 also provide communication services through the base station subsystem (e.g., a small indoor base station (Remote Radio Head: RRH)).

[0148] Terms such as “cell” or “sector” refer to a portion or the entire coverage area of ​​at least one of the base stations and base station subsystems that provide communication services within that coverage area.

[0149] In this disclosure, the base station sending information to the terminal can also be replaced by the base station instructing the terminal on information-based control / actions.

[0150] In this disclosure, the terms "Mobile Station (MS)," "user terminal," "User Equipment (UE)," and "terminal" are used interchangeably.

[0151] For mobile stations, those skilled in the art sometimes also use the following terms: 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, handheld device, user agent, mobile client, client, or some other appropriate terms.

[0152] At least one of the base station and mobile station can also be referred to as a transmitting device, receiving device, communication device, etc. Additionally, at least one of the base station and mobile station can also be a device mounted on a mobile body, the mobile body itself, etc. The mobile body can be a vehicle (e.g., a car, an airplane, etc.), a mobile body moving in an unmanned manner (e.g., a drone, an autonomous vehicle, etc.), or a robot (humanized or unmanned). Furthermore, at least one of the base station and mobile station also includes devices that do not necessarily move during communication. For example, at least one of the base station and mobile station can be an IoT (Internet of Things) device such as a sensor.

[0153] Furthermore, the base station in this disclosure can also be replaced by a mobile station (user terminal, hereinafter the same). For example, various forms / implementations of this disclosure can also be applied to structures that replace communication between the base station and the mobile station with communication between multiple mobile stations (e.g., also referred to as D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.). In this case, the structure can also be configured such that the mobile station has the functions of the base station. In addition, terms such as "uplink" and "downlink" can also be replaced with terms corresponding to communication between terminals (e.g., "side"). For example, uplink channel, downlink channel, etc. can be replaced with side channel (or side link).

[0154] Similarly, the mobile station in this disclosure can be replaced by a base station. In this case, the base station can also be configured to have the functions of a mobile station.

[0155] A radio frame can consist of one or more frames in the time domain. Each frame in the time domain is called a subframe. A subframe can also consist of one or more time slots in the time domain. A subframe can have a fixed duration (e.g., 1 ms) independent of the parameter set (numerology).

[0156] A parameter set can be communication parameters applied to at least one of the transmission and reception of a signal or channel. For example, a parameter set can represent at least one of the following: Subcarrier Spacing (SCS), bandwidth, symbol length, cyclic prefix length, Transmission Time Interval (TTI), number of symbols per TTI, radio frame structure, specific filtering processing performed by the transceiver in the frequency domain, and specific windowing processing performed by the transceiver in the time domain.

[0157] In the time domain, a time slot can be composed of one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbols, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols, etc.). A time slot can be a time unit based on a set of parameters.

[0158] A time slot can contain multiple mini-time slots. Each mini-time slot can consist of one or more symbols in the time domain. Furthermore, a mini-time slot can also be called a sub-time slot. A mini-time slot can consist of fewer symbols than a time slot. PDSCH (or PUSCH) transmitted in a time unit larger than a mini-time slot can also be called PDSCH (or PUSCH) mapping type A. PDSCH (or PUSCH) transmitted using mini-time slots can also be called PDSCH (or PUSCH) mapping type B.

[0159] Radio frames, subframes, time slots, mini-time slots, and symbols all represent time units for transmitting signals. Radio frames, subframes, time slots, mini-time slots, and symbols can also be referred to by their respective alternative names.

[0160] For example, a single subframe can be called a Transmission Time Interval (TTI), multiple consecutive subframes can also be called a TTI, and a single time slot or a single mini-time slot can also be called a TTI. That is, at least one of a subframe or TTI can be a subframe (1ms) in existing LTE, a period shorter than 1ms (e.g., 1-13 symbols), or a period longer than 1ms. Furthermore, the unit representing TTI can also be called a time slot, mini-time slot, etc., instead of a subframe.

[0161] Here, TTI refers, for example, to the smallest unit of time for scheduling in wireless communication. For instance, in an LTE system, the base station schedules the allocation of radio resources (bandwidth, transmit power, etc., available to each user terminal) in TTI units. However, the definition of TTI is not limited to this.

[0162] The Time Interval (TTI) can be a unit of time for transmitting channel-coded data packets (transmission blocks), code blocks, codewords, etc., or it can be a processing unit such as scheduling or link adaptation. Furthermore, when a TTI is given, the actual time interval (e.g., the number of symbols) that the transmission block, code block, codeword, etc., are mapped to can be shorter than that TTI.

[0163] Furthermore, when one time slot or one mini time slot is referred to as a TTI, more than one TTI (i.e., more than one time slot or more than one mini time slot) can become the minimum time unit for scheduling. In addition, the number of time slots (mini time slots) constituting the minimum time unit for scheduling can also be controlled.

[0164] A TTI with a duration of 1ms is also called a normal TTI (TTI in LTE Rel.8-12), a long TTI, a normal subframe, a long subframe, or a time slot. A TTI shorter than a normal TTI can also be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a mini time slot, a sub-time slot, or a time slot.

[0165] In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) can be understood as a TTI with a duration of more than 1ms, and a short TTI (e.g., a shortened TTI, etc.) can be understood as a TTI with a duration of less than a long TTI but more than 1ms.

[0166] A resource block (RB) is a unit of resource allocation in both the time and frequency domains. In the frequency domain, it can contain one or more consecutive subcarriers. The number of subcarriers contained in an RB can be the same regardless of the parameter set, for example, it can be 12. The number of subcarriers contained in an RB can also be determined based on the parameter set.

[0167] Furthermore, the temporal domain of an RB can include one or more symbols, or it can be the length of one time slot, one mini-time slot, one subframe, or one TTI. A TTI, a subframe, etc., can also be composed of one or more resource blocks.

[0168] In addition, one or more RBs can also be called Physical Resource Block (PRB), Sub-Carrier Group (SCG), Resource Element Group (REG), PRB pair, RB pair, etc.

[0169] Furthermore, a resource block can consist of one or more resource elements (REs). For example, one RE can be a radio resource area consisting of one subcarrier and one symbol.

[0170] The Bandwidth Part (BWP) (also known as partial bandwidth, etc.) can represent a subset of contiguous common resource blocks (RBs) used for a certain parameter set in a given carrier. Here, common RBs can be determined by indexing RBs based on a common reference point of that carrier. PRBs can be defined and numbered within a BWP.

[0171] A BWP can include a UL BWP and a DL BWP. One or more BWPs can be set for a UE within a single carrier.

[0172] At least one of the configured BWPs can be active, and the scenario of the UE transmitting or receiving predetermined signals / channels outside of the active BWP is not considered. Furthermore, the terms "cell," "carrier," etc., used in this disclosure can be replaced with "BWP."

[0173] The structures of radio frames, subframes, time slots, mini-time slots, and symbols described above are merely illustrative. For example, the number of subframes contained in a radio frame, the number of time slots in each subframe or radio frame, the number of mini-time slots contained within a time slot, the number of symbols and RBs contained in a time slot or mini-time slot, the number of subcarriers contained in an RB, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, etc., can be varied in many ways.

[0174] The terms “connected,” “coupled,” or any variations thereof are intended to indicate any direct or indirect connection or combination between two or more elements, including cases where there is one or more intermediate elements between the two elements that are “connected” or “coupled.” The combination or connection between elements can be physical, logical, or a combination of these. For example, “access” can be used instead of “connected.” In the context of this disclosure, it can be understood that two elements are “connected” or “coupled” to each other using at least one of one or more wires, cables, and printed electrical connections, and, as some non-limiting and non-inclusive examples, using electromagnetic energy with wavelengths in the wireless frequency domain, microwave region, and light (including both visible and invisible regions) to “connect” or “couple” to each other.

[0175] The reference signal can be simply called the Reference Signal (RS), or, depending on the standard applied, the pilot.

[0176] As used in this disclosure, the word "based on" does not mean "based on only" unless otherwise expressly stated. In other words, the word "based on" means both "based on only" and "based on at least".

[0177] Alternatively, the "unit" in the structure of the above devices can be replaced with "section", "circuit", "equipment", etc.

[0178] Any reference to elements using the designations "first," "second," etc., as used in this disclosure does not necessarily limit the number or order of these elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Therefore, reference to the first and second elements does not imply that only two elements can be used there, or that the first element must precede the second element in some form.

[0179] When the terms "include," "including," and their variations are used in this disclosure, these terms, like the term "comprising," imply inclusion. Furthermore, the term "or" as used in this disclosure does not refer to XOR.

[0180] In this disclosure, for example, in cases where articles are added through translation, such as in English (a, an, and the), this disclosure also includes cases where the noun following these articles is in a plural form.

[0181] The terms "determining" and "determining" as used in this disclosure sometimes encompass a variety of actions. For example, "determining" or "determining" may include situations where actions such as judging, calculating, computing, processing, deriving, investigating, searching (e.g., searching in a table, database, or other data structure), and ascertaining are considered as "determining" or "determining." Furthermore, "determining" or "determining" may include situations where actions such as receiving (e.g., receiving information), transmitting (e.g., sending information), inputting, outputting, and accessing (e.g., accessing data in memory) are considered as "determining" or "determining." Additionally, "determining" or "determining" may include situations where actions such as resolving, selecting, choosing, establishing, and comparing are considered as "determining" or "determining." That is, "judgment" and "decision" can include situations where certain actions are regarded as having been "judged" or "decided". In addition, "judgment (decision)" can also be replaced by "assuming", "expecting", "considering", etc.

[0182] In this disclosure, the phrase "A and B are different" can mean "A and B are different from each other." Additionally, this phrase can also mean "A and B are each different from C." Terms such as "separate" and "combined" can also be interpreted in the same way as "different."

[0183] Figure 9 An example of the structure of vehicle 2001 is shown. For example... Figure 9 As shown, the vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a gear 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.

[0184] The drive unit 2002 may consist of, for example, an engine, a motor, or a hybrid powertrain of an engine and a motor. The steering unit 2003 includes at least a steering wheel (also called a steering wheel), configured to steer at least one of the front and rear wheels based on user-operated steering wheel movements. The electronic control unit 2010 consists of a microprocessor 2031, a memory (ROM, RAM) 2032, and a communication port (I / O port) 2033. Signals from various sensors 2021-2027 present in the vehicle are input to the electronic control unit 2010. The electronic control unit 2010 may also be referred to as an ECU (Electronic Control Unit).

[0185] The signals from various sensors 2021 to 2028 include current signals from current sensor 2021 that senses the current of the motor, speed signals of the front and rear wheels obtained by speed sensor 2022, air pressure signals of the front and rear wheels obtained by air pressure sensor 2023, vehicle speed signals obtained by vehicle speed sensor 2024, acceleration signals obtained by acceleration sensor 2025, accelerator pedal input signals obtained by accelerator pedal sensor 2029, brake pedal input signals obtained by brake pedal sensor 2026, gear lever operation signals obtained by gear lever sensor 2027, and detection signals for detecting obstacles, vehicles, pedestrians, etc. obtained by object detection sensor 2028.

[0186] The Information Service Unit 2012 consists of various devices such as a car navigation system, audio system, speakers, television, and radio, which provide (output) various information such as driving information, traffic information, and entertainment information, and one or more ECUs that control these devices. The Information Service Unit 2012 uses information obtained from external devices via a communication module 2013, etc., to provide various multimedia information and multimedia services to the occupants of vehicle 1.

[0187] The Information Services Department 2012 may include input devices (such as keyboards, mice, microphones, switches, buttons, sensors, touch panels, etc.) that accept input from external sources, and may also include output devices (such as monitors, speakers, LEDs, touch panels, etc.) that implement output to external sources.

[0188] The Driver Assistance System 2030 comprises various devices used to prevent accidents or reduce driver workload, such as millimeter-wave radar, LiDAR (Light Detection and Ranging), cameras, positioning devices (e.g., GNSS), map information (e.g., high-definition (HD) maps, autonomous vehicle (AV) maps), gyroscope systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System)), AI (Artificial Intelligence) chips, and AI processors, as well as one or more ECUs that control these devices. Furthermore, the Driver Assistance System 2030 transmits and receives various information via the communication module 2013 to achieve driver assistance or autonomous driving functions.

[0189] The communication module 2013 can communicate with the microprocessor 2031 and the components of the vehicle 1 via the communication port. For example, the communication module 2013 can send and receive data with the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, gear shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, axle 2009, microprocessor 2031 in the electronic control unit 2010, memory (ROM, RAM) 2032, and sensors 2021 to 2028 in the vehicle 2001 via the communication port 2033.

[0190] The communication module 2013, controlled by the microprocessor 2031 of the electronic control unit 2010, is a communication device capable of communicating with external devices. For example, it can transmit and receive various types of information with external devices via wireless communication. The communication module 2013 can be located inside or outside the electronic control unit 2010. External devices can be, for example, base stations, mobile stations, etc.

[0191] The communication module 2013 can also wirelessly transmit at least one of the signals input to the electronic control unit 2010 from the various sensors 2021-2028, the information obtained based on those signals, and the information obtained via the information service unit 2012 based on input from an external source (user) to an external device. The electronic control unit 2010, the various sensors 2021-2028, and the information service unit 2012 can also be referred to as input units that receive input. For example, the PUSCH transmitted by the communication module 2013 may include information based on the aforementioned inputs.

[0192] The communication module 2013 receives various information (traffic information, signal information, inter-vehicle information, etc.) sent from external devices and displays it on the information service unit 2012 of the vehicle. The information service unit 2012 can also be referred to as an output unit for outputting information (for example, outputting information to devices such as displays and speakers based on the PDSCH received by the communication module 2013 (or data / information decoded from the PDSCH). In addition, the communication module 2013 stores the various information received from external devices in a memory 2032 available to the microprocessor 2031. The microprocessor 2031 can also control the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, gear shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, axles 2009, sensors 2021 to 2028, etc., of the vehicle 2001 based on the information stored in the memory 2032.

[0193] The present disclosure has been described in detail above, but it will be 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 ways without departing from the spirit and scope of the present disclosure as defined by the claims. Therefore, the description in this disclosure is for illustrative purposes only and is not intended to be limiting in any way.

[0194] (Postscript)

[0195] The above disclosure can also be expressed as follows: The first feature is a terminal having: a transmitting unit that transmits terminal capability information related to a non-terrestrial network to a wireless base station; and a control unit that performs communication settings via the non-terrestrial network based on the capability information, wherein the transmitting unit transmits additional capability information of the terminal when using the terrestrial network node if an airborne terrestrial network node exists between the terminal and the wireless base station.

[0196] The second feature is that, in the first feature, the transmitting unit transmits the additional capability information containing at least a portion of the capability information.

[0197] The third feature is that, in the first or second feature, the transmitting unit transmits the additional capability information indicating support for communication via the ground network node.

[0198] The fourth feature is that, in features 1 through 3, the transmitting unit transmits the additional capability information for each frequency band or each combination of the frequency bands used.

[0199] Label Explanation

[0200] 10 Wireless Communication Systems

[0201] 30 5GC

[0202] 40 Data Network

[0203] 100 Gateway Device

[0204] 110 Network Connection Department

[0205] 120FL Communications Department

[0206] 130 Capability Information Receiving Department

[0207] 140 Control Department

[0208] 150 GEO

[0209] 160 LEO

[0210] 170 gNB

[0211] 200 HAPS

[0212] 300, 300p UE

[0213] 310 Wireless Communications Department

[0214] 320 Capability Information Transmission Department

[0215] 330 Switching Execution Unit

[0216] 340 Control Department

[0217] 1001 processor

[0218] 1002 Memory

[0219] 1003 Storage device

[0220] 1004 Communication device

[0221] 1005 Input Device

[0222] 1006 Output Device

[0223] 1007 bus

[0224] Vehicle 2001

[0225] 2002 Drive Unit

[0226] 2003 Steering Unit

[0227] 2004 Accelerator Pedal

[0228] 2005 Brake Pedal

[0229] 2006 gearshift lever

[0230] Front wheels around 2007

[0231] 2008 rear wheels (left and right)

[0232] 2009 axle

[0233] 2010 Electronic Control Department

[0234] 2012 Information Service Department

[0235] 2013 Communication Module

[0236] 2021 Current Sensor

[0237] 2022 Speed ​​Sensor

[0238] 2023 Barometric Pressure Sensor

[0239] 2024 vehicle speed sensor

[0240] 2025 Accelerometer

[0241] 2026 Brake Pedal Sensor

[0242] 2027 Gearshift sensor

[0243] 2028 Object Detection Sensor

[0244] 2029 Accelerator Pedal Sensor

[0245] 2030 Driver Assistance Systems Department

[0246] 2031 microprocessor

[0247] 2032 Memory (ROM, RAM)

[0248] 2033 Communication Port

Claims

1. A terminal, comprising: a transmitting section that transmits, to a radio base station, capability information of the terminal related to a non-terrestrial network; and a control section that performs communication setting via the non-terrestrial network based on the capability information, the transmitting section transmits, in a case where a terrestrial network node located in the sky exists between the terminal and the radio base station, additional capability information of the terminal that is applied in a case where the terrestrial network node is utilized.

2. The terminal according to claim 1, wherein the transmitting section transmits the additional capability information that contains at least a part of the capability information.

3. The terminal according to claim 1, wherein the transmitting section transmits the additional capability information that indicates support of communication via the terrestrial network node.

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

5. A radio base station, comprising: a receiving section that receives, in a case where a terrestrial network node located in the sky exists between the radio base station and a terminal, additional capability information of the terminal that is applied in a case where the terrestrial network node is utilized; and a control section that performs communication setting via the terrestrial network node based on the additional capability information.

6. A method of wireless communication, wherein comprising the steps of: transmitting, to a radio base station, capability information of a terminal related to a non-terrestrial network; performing communication setting via the non-terrestrial network based on the capability information; and in a case where a terrestrial network node located in the sky exists between the terminal and the radio base station, transmitting additional capability information of the terminal that is applied in a case where the terrestrial network node is utilized.

Images