Wireless base station and wireless communication method

Abstract

A wireless base station performs setting in a radio resource control layer with a wireless relay device having a reflection plate, and receives a setup completion message from the wireless relay device. The wireless base station receives the setup completion message including identification information that identifies a case where the wireless relay device is present.

Description

Technical Field

[0001] This disclosure relates to wireless base stations supporting RIS and wireless communication methods. Background Technology

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

[0003] In 6G, the introduction of Reconfigurable Intelligent Surfaces (RIS) has been studied, which control the reflection or transmission of radio waves by installing them on walls or windows to form zones and improve various wireless performance characteristics. RIS is expected to be particularly helpful in the effective utilization of high-frequency bands with high line-of-sight propagation.

[0004] The specific architecture of the RIS is under research within 3GPP. For example, an architecture where the RIS is controlled by a gNB (non-patent document 1) has been proposed. Specifically, it is proposed that the RIS has functions for connecting to the gNB via a control link (RIS-MT (Mobile Termination)) and a reflector (RIS-panel). In addition, a Mobile RIS (mobile RIS) mounted on a mobile body such as a vehicle has been envisioned.

[0005] Existing technical documents

[0006] Non-patent literature

[0007] Non-patent literature 1: "Motivation of study on Reconfigurable IntelligentSurface", RP-231916, 3GPP TSG RAN#101, 3GPP, September 2023 Summary of the Invention

[0008] As mentioned above, RIS sometimes also has the functionality and mobility of a high-performance reflector and is envisioned to have similar functions to a terminal (User Equipment, UE).

[0009] However, wireless base stations cannot account for the functions installed in such RIS and cannot efficiently and reliably identify RIS.

[0010] Therefore, the following disclosure is made in view of the situation and its purpose is to provide a wireless base station and wireless communication method that can efficiently and reliably identify the RIS while taking into account the functions installed in the RIS.

[0011] One aspect of this disclosure is a wireless base station (gNB100) comprising: a control unit (control unit 140) that performs settings in the radio resource control layer with a wireless relay device (RIS300) having a reflector; and a receiving unit (RIS management unit 120) that receives an establishment completion message of the radio resource control layer from the wireless relay device, the receiving unit receiving the establishment completion message containing identification information, the identification information identifying the wireless relay device as the wireless relay device.

[0012] One aspect of this disclosure is a wireless base station comprising: a control unit (control unit 140) that performs settings in the radio resource control layer with a wireless relay device having a reflector; and a receiving unit that receives an establishment request message of the radio resource control layer from the wireless relay device, the receiving unit receiving the establishment request message containing identification information, the identification information identifying the wireless relay device as such.

[0013] One aspect of this disclosure is a wireless base station comprising: a control unit (control unit 140) that performs a random access procedure with a wireless relay device having a reflector; and a receiving unit (RIS management unit 120) that receives from the wireless relay device a random access channel using wireless resources dedicated to the wireless relay device, wherein the control unit identifies the wireless relay device based on the utilization of the wireless resources.

[0014] One aspect of this disclosure is a wireless base station comprising: a control unit (control unit 140) that performs settings in the radio resource control layer with a wireless relay device having a reflector; and a transmission unit (network interface unit 130) that transmits an initial message accompanying the settings to a network, the transmission unit transmitting the initial message containing identification information, the identification information identifying the wireless relay device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the wireless communication system 10.

[0016] Figure 2 This is the function block structure diagram of gNB100.

[0017] Figure 3 This is the functional block structure diagram of the RIS300.

[0018] Figure 4 This is a diagram illustrating a control example of a network-based RIS.

[0019] Figure 5 This is a diagram illustrating the transmission timing example for RRC Setup Complete.

[0020] Figure 6 This is a diagram illustrating the timing of an RRC Setup Request.

[0021] Figure 7 This is a diagram illustrating the timing of the initial UE message transmission, as shown in Example 1.

[0022] Figure 8 This is a diagram illustrating the timing of the initial UE message transmission, as shown in Example 2.

[0023] Figure 9 This is a diagram illustrating an example of the hardware architecture of gNB100 and RIS300.

[0024] Figure 10 This is a diagram showing a structural example of vehicle 2001. Detailed Implementation

[0025] The embodiments are described below with reference to the accompanying drawings. Furthermore, the same or similar reference numerals are used to denote the same function and structure, and their descriptions are omitted where appropriate.

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

[0027] Figure 1 This is a schematic diagram of the overall structure of the wireless communication system 10 in this embodiment. In this embodiment, the wireless communication system 10 is a 6G-compliant wireless communication system, including a 6G Radio Access Network 20 (hereinafter referred to as 6GRAN20), a terminal 200 (User Equipment 200, hereinafter referred to as UE200) and a RIS (Reconfigurable Intelligent Surface) 300.

[0028] In addition, the wireless communication system 10 may also include wireless communication systems that follow other wireless communication methods such as 5G New Radio (NR). Furthermore, the wireless communication system 10 may also support functions related to IIoT (Industrial Internet of Things) and URLLC (Ultra-Reliable and Low Latency Communications).

[0029] The 6GRAN20 includes a wireless base station 100 (hereinafter referred to as gNB100). Furthermore, the specific structure of the wireless communication system 10, including the number of gNBs and UEs, is not limited to... Figure 1 The example shown.

[0030] In addition, the gNB100 can also use the fronthaul (FH) interface specified by the O-RAN (Open Radio Access Network Alliance). The gNB100 can include O-DU (O-RAN Distributed Unit) and O-RU (O-RAN Radio Unit). The gNB100 can function as an NG-RAN node (wireless communication node).

[0031] 6GRAN20 includes multiple 6G RAN Nodes, specifically gNBs (or ng-eNBs). 6GRAN20 connects to the 6G-compliant Core Network (CN), namely 6GC30. In 6GC30, the concept of CUPS (Control and User Plane Separation), which explicitly separates the functions of the user plane and the control plane, can be introduced.

[0032] 6GC30 may include logical nodes (network devices) that provide network functions (NFs). These NFs include the AMF (Access and Mobility Management Function), which provides access and mobility management functions for the UE200; the SMF (Session Management Function), which provides session management functions; and the LMF (Location Management Function), which is responsible for communication control related to the location information services specified in 5GC. Furthermore, the AMF and / or SMF can also connect to the UDM / UDR (Unified Data Management / User Data Repository). Additionally, 6GRAN20 and 6GC30 can be simply referred to as a "network".

[0033] In addition, 6GRAN20 can connect to servers managed by a 3GPP-based service provider or servers managed by entities other than that provider (3GPP or non-3GPP servers).

[0034] The gNB100 is a 6G-compliant wireless base station that performs 6G-compliant wireless communication with the UE200. Furthermore, the gNB100 can consist of a CU (Central Unit) and a DU (Distributed Unit), with the DU located separately from the CU in geographically different locations. A CU can connect to one or more DUs. Additionally, gNB100s (gNB-CU) can connect to each other via the Xn interface, and CUs and DUs can connect via the F1 interface. The gNB100 (CU) can connect to AMFs, etc., via the NG interface (also referred to by different names).

[0035] The gNB100 and UE200 can support massive MIMO, which generates more directional beams by controlling radio signals transmitted from multiple antenna elements; carrier aggregation (CA), which uses multiple component carriers (CC); and dual connectivity (DC), which enables simultaneous communication between the UE and various nodes of multiple NG-RAN nodes. In addition, the UE200 can perform cell handover (HO) to different RATs.

[0036] In a broad sense, the mobility of UE200 can refer to the ease of movement and maneuverability of UE200. However, in this embodiment, it can also refer to the minimization of call drop, radio link (including beam) failure, unnecessary cell handover, ping-pong state, etc.

[0037] UE200 can perform measurement reporting periodically. UE200 can also perform measurement reporting on an event-by-event basis. Furthermore, entry conditions for starting a measurement report and exit conditions for ending a measurement report can be specified on an event-by-event basis. Additionally, entry conditions can be interpreted as conditions for determining whether a measurement report is included in the reporting list, and exit conditions can be interpreted as conditions for determining whether a measurement report is excluded from the reporting list.

[0038] UE200 can also have two independent protocol stacks. Specifically, it can have two protocol stacks consisting of the Physical Layer (PHY), Medium Access Control Layer (MAC), Radio Link Control Layer (RLC), Packet Data Convergence Protocol Layer (PDCP), Radio Resource Control Layer (RRC), and Non-Access Stratum (NAS). Such a protocol stack can be called a dual stack.

[0039] The RIS300 can be described as a reflector that controls the reflection or transmission of radio waves by being installed on walls or window glass to form an area and improve various wireless performance characteristics. The RIS300, with its reflector, is a distributed antenna deployment (Multi-TRP) system that disperses multiple antenna devices, enabling improvements in wireless performance.

[0040] Besides the reflector, the RIS300 can also be referred to as a battery-free device, a metamaterial functional device, an IRS (Intelligent Reflecting Surface), an intelligent repeater, or a wireless repeater. The RIS300 can be installed in specific locations or mounted on mobile vehicles such as cars and trains. Such a mobile RIS can also be called a Mobile RIS. The Mobile RIS can be appropriately used to relay wireless communication with UEs (User Equipment) installed on UAVs (Unmanned Aerial Vehicles) such as drones.

[0041] For example, the RIS300 can have the following functions.

[0042] • (UE Function)

[0043] • Receiving function for signals transmitted from wireless base stations (e.g., DL (downlink) signals, SSB (SS Block), PDCCH (Physical Downlink Control Channel), PDSCH (Physical Downlink Shared Channel), DM-RS (DeModulation Reference Signal), PT-RS (Phase Tracking Reference Signal), CSI-RS (Channel Status Information Reference Signal), RIS dedicated signals)

[0044] It may include receiving information related to the functionality of metamaterials.

[0045] • Transmission functions for sending signals to wireless base stations (e.g., UL (uplink) signals, PRACH (Random Access Channel Preamble), PUCCH (Physical Uplink Control Channel), PUSCH (Physical Uplink Control Channel), DM-RS, PT-RS, SRS (Sounding Reference Signal), and RIS dedicated signals)

[0046] It can include the transmission of information related to metamaterial functionality.

[0047] • Frame synchronization function with wireless base stations

[0048] • (Metamaterial Functions)

[0049] • Reflection function that reflects signals transmitted from a wireless base station or UE (e.g., phase change).

[0050] Functions related to beam control (e.g., functions related to TCI (Transmission Configuration Indication) state, QCL (Quasi Co Location) control, beam selection applications, spatial filter / precoding weight selection applications)

[0051] • Power modulation function (e.g., power amplification) of signals transmitted from wireless base stations or UEs.

[0052] Additionally, "receive and transmit" or "relay" in RIS300 can also refer to transmitting up to the predetermined function A below, but not up to the predetermined function B.

[0053] • A: Use a phase shifter, while B: Do not use compensation circuits (e.g., amplification, filtering).

[0054] • A: Uses phase shifters and compensation circuits, while B: Does not involve frequency conversion.

[0055] When the phase changes, the amplitude of the RIS300 can be amplified. "Relay" can also refer to sending the received signal directly without performing layer 2 / 3 processing, sending the signal received in the physical layer directly, or sending the received signal directly without signal interpretation (in which case, phase changes, amplitude amplification, etc. can also be performed).

[0056] The RIS300 can operate in standalone mode or be controlled by the gNB100 (6GRAN20) or 6GC30. For example, when the RIS300 is controlled by the gNB100, the RIS300 can have the functions of connecting to the gNB100 via a control link (RIS-MT (Mobile Termination)) and a reflector (RIS-panel).

[0057] In addition, in this embodiment, the channel includes a control channel and a data channel. The control channel includes PDCCH (Physical Downlink Control Channel), PUCCH (Physical Uplink Control Channel), PRACH (Physical Random Access Channel), and PBCH (Physical Broadcast Channel), etc.

[0058] In addition, the data channel includes PDSCH (Physical Downlink Shared Channel) and PUSCH (Physical Uplink Shared Channel).

[0059] In addition, reference signals include DMRS (Demodulation reference signal), SRS (Sounding Reference Signal), PTRS (Phase Tracking Reference Signal), and CSI-RS (Channel State Information-Reference Signal), etc., and the signal contains both the channel and the reference signal. Furthermore, data can refer to data transmitted via a data channel.

[0060] (2) Functional block structure of wireless communication system

[0061] Next, the functional block structure of the wireless communication system 10 will be described. Specifically, the functional block structures of gNB100 and RIS300 will be described. Figure 2 This is the function block structure diagram of gNB100. Figure 3 This is the functional block structure diagram of the RIS300.

[0062] (2.1) gNB100

[0063] like Figure 2 As shown, gNB100 includes a wireless communication unit 110, a RIS management unit 120, a network interface unit 130, and a control unit 140.

[0064] The wireless communication unit 110 transmits a 6G-compliant downlink signal (DL signal). Furthermore, the wireless communication unit 110 receives a 6G-compliant uplink signal (UL signal). The wireless communication unit 110 can use one or more transceiver points (TRPs) to transmit the DL signal and receive the UL signal. In this embodiment, TRP can be interpreted as referring to multiple transmit antennas of the DL signal.

[0065] The RIS management unit 120 manages the RIS300 that performs relay processing between the RIS300 and the UE200. Specifically, the RIS management unit 120 can manage the authentication status, identification information, and support capabilities of the RIS300. The RISs managed include not only those located in specific locations but also mobile RISs that can be moved.

[0066] More specifically, the RIS management unit 120 can manage the authentication status of each RIS notified by the 6GC30. The authentication status indicates whether the RIS is authorized or not authorized by the network.

[0067] The RIS management unit 120 can manage identification information that identifies a RIS300. This identification information can also be called a RIS-node indication, and there are no particular limitations as long as it identifies a RIS300. The identification information can be information that identifies the type of RIS. RIS types can include, for example, RIS nodes (which can include standalone RIS), Mobile RIS, and RIS-MT.

[0068] Furthermore, the same identification information as the UE can be used to uniquely identify the RIS. The RIS management unit 120 can also determine whether it is a RIS and / or the type of RIS based on this identification information. For example, any of the following information can be used as the identification information for the RIS.

[0069] • GUTI (Global Unique Temporary ID) and S-TMSI (Serving Temporary Mobile Subscriber Identity)

[0070] • SUPI (Subscription Permanent Identifier) ​​and SUCI (Subscription Concealed Identifier)

[0071] • IMSI (International Mobile Subscriber Identity), IMEI (International Mobile Equipment Identity), IMEISV (Software Version), Masked IMEISV

[0072] MAC address

[0073] EUI (Extended Unique Identifier) ​​- 64

[0074] The RIS management unit 120 can manage whether RIS is supported within the cells (or subordinate cells) formed by the gNB100. Specifically, the RIS management unit 120 can manage whether specific types of RIS (e.g., RIS nodes, MobileRIS, and RIS-MT) are supported.

[0075] Furthermore, the RIS management unit 120 can manage whether RIS access is allowed in the cell formed by gNB100. Specifically, the RIS management unit 120 can manage whether specific types of RIS (e.g., RIS nodes, Mobile RIS, and RIS-MT) are allowed. The RIS management unit 120 can also broadcast system information (SIB: System Information Block) indicating RIS support and / or permission to the cell.

[0076] Furthermore, the RIS management unit 120 can send and receive Radio Resource Control (RRC) messages with the RIS300. Specifically, in this embodiment, the RIS management unit 120 can receive an RRC Setup Complete message from the RIS300; specifically, it receives an RRC Setup Complete message. In this embodiment, the RIS management unit 120 can function as a receiving unit. The RIS management unit 120 can receive an RRC Setup Complete message containing identification information identifying the RIS300.

[0077] In addition, the RIS management unit 120 can also receive Radio Resource Control (RRC) Setup Request messages from the RIS300, specifically, it can receive RRC Setup Requests. The RIS management unit 120 can receive RRC Setup Requests that contain identification information identifying the RIS300.

[0078] The RIS identification information can indicate that the source of the RRC Setup Complete or RRC Setup Request is a RIS (which may include a Mobile RIS), or it can indicate the type of RIS (RIS node, Mobile RIS, or RIS-MT).

[0079] The RIS management unit 120 can also receive a random access channel (RACH) from the RIS300 that uses radio resources dedicated to the RIS300. Specifically, the RIS management unit 120 can receive an RA preamble from the RIS300 according to a contention-based random access procedure (CBRA). This RA preamble can use radio resources specifically allocated to the RIS.

[0080] The RIS management unit 120 can send system information (SIB) indicating the radio resource to the RIS 300. In this embodiment, the RIS management unit 120 can be configured as a transmitting unit.

[0081] The network interface unit 130 provides an Xn interface between gNBs and an interface (e.g., NG) between a gNB and an AMF. The network interface unit 130 can perform processing via these interfaces.

[0082] For example, network interface unit 130 may also send an Initial UE message to 6GC30 (e.g., AMF). Furthermore, network interface unit 130 may receive an Initial context setup request for the Initial UE message from 6GC30. The Initial UE message can be interpreted as an initial message accompanying the settings in the Radio Resource Control (RRC) layer. Network interface unit 130 may send the initial message accompanying the settings in the RRC layer to the network.

[0083] The network interface unit 130 can send an Initial UE message containing identification information identifying it as a RIS300. In this embodiment, the network interface unit 130 can be configured as a sending unit for sending an initial message. As described above, the identification information can indicate that it is a RIS (which may include a Mobile RIS), or it can indicate the type of RIS (RIS node, Mobile RIS, or RIS-MT).

[0084] The control unit 140 controls the functional blocks constituting the gNB100. In particular, in this embodiment, the control unit 140 can perform control related to the setting of the communication path (wireless link) for communication between the RIS300 and the UE200.

[0085] Specifically, the control unit 140 can perform settings via the control plane (C-plane) of the RIS300 and settings via the user plane (U-plane) of the RIS300. These settings can take into account the RIS300's authentication status, identification information, and whether it is supported.

[0086] More specifically, the control unit 140 can execute settings in the Radio Resource Control (RRC) layer of the RIS300. Furthermore, the control unit 140 can execute the Random Access Procedure (RA) with the RIS300.

[0087] As described above, during the RA process with the RIS300, dedicated wireless resources allocated to the RIS can be used. The control unit 140 can identify the object of the RA process as the RIS300 based on the utilization of the dedicated wireless resources.

[0088] (2.2) RIS300

[0089] like Figure 3 As shown, the RIS300 includes a RIS-MT unit 310, a RIS-Panel unit 320, a system information receiving unit 330, and a control unit 340.

[0090] The RIS-MT unit 310 provides RIS-MT (Mobile Termination) functionality. Specifically, the RIS-MT unit 310 provides functionality for the RIS300 to connect to the gNB100 via a control link. MT can be interpreted as a function for connecting to wireless communication nodes (upper-level nodes) such as the gNB located upstream (upper-level) of the RIS300. Alternatively, MT can also be interpreted as a function for connecting to lower-level nodes such as the UE, i.e., the opposite of DU (Distributed Unit).

[0091] The RIS-Panel 320 provides the function of a reflector (RIS-Panel). Specifically, the RIS-Panel 320 is capable of reflecting radio waves in a specific direction. As described above, the RIS-Panel 320 not only reflects radio waves but also has metamaterial functions, providing functions such as phase shifting and power amplification.

[0092] The RIS-MT unit 310 and RIS-Panel unit 320 can also be configured with specific functions through control from the network (which may include gNB100).

[0093] The system information receiving unit 330 receives system information (SIB) broadcast from the network (gNB100). In particular, in this embodiment, the system information receiving unit 330 may receive an SIB containing information elements (IEs) indicating whether RIS is supported or permitted within the cell.

[0094] In addition, the system information receiving unit 330 can receive SIBs including information elements (IEs) indicating the type of RIS that is supported or permitted in the cell.

[0095] The control unit 340 controls the functional blocks constituting the RIS 300. In particular, in this embodiment, the control unit 340 can determine whether the RIS is supported and / or allowed within the cell based on the IE contained in the SIB received by the system information receiving unit 330.

[0096] Furthermore, the control unit 340 can determine the type of RIS that is supported or permitted in the cell based on the IE included in the SIB received by the system information receiving unit 330.

[0097] The control unit 340 may also consider RIS access to the cell to be permitted if it receives an SIB containing an IE indicating that RIS is supported in the cell.

[0098] (3) Operation of wireless communication system

[0099] Next, the operation of the wireless communication system 10 will be explained. Specifically, the operations related to the network's authentication, identification, and support of the RIS300 will be explained.

[0100] (3.1) Prerequisites and topics

[0101] As mentioned above, RIS is a reflector that improves various wireless performance characteristics, especially in the case of high frequency with high line propagation, where the effective use of RIS is expected.

[0102] Figure 4 This represents a control example of a network-based RIS. For example... Figure 4 As shown, the 6GC30 and gNB100 can control the RIS300 via a wireless control link. In this architecture, as described above, the RIS300 can have a RIS-MT section 310 and a RIS-Panel section 320. Alternatively, the RIS300 may not have a RIS-MT section 310 and may have functions equivalent to a UE (in the case of following the OAM control architecture), or it may have autonomous control functions (in the case of standalone operation).

[0103] However, in control architectures that include such RIS, there is a problem that the gNB cannot distinguish and identify RIS from UE, etc.

[0104] (3.2) Example of an action

[0105] The following describes an example of an action that can solve the above problem. The RRC Setup Complete sent from the RIS300 (RIS node or RIS-MT, hereinafter the same) to the gNB may include the RIS identification information.

[0106] Figure 5 This indicates a timing example for sending RRC Setup Complete. RRC Setup Complete can be interpreted as part of the RA process, and can also be referred to as Msg.5. For example... Figure 5 As shown, RRC Setup Complete may include an information element (IE) indicating the type of RIS. Additionally, as mentioned above, RRC Setup Complete may also include information indicating that it is a RIS but not specifying its type.

[0107] Figure 6This indicates the timing sequence for sending an RRC Setup Request. An RRC Setup Request can be interpreted as part of the RA process and can also be referred to as Msg.3. For example... Figure 6 As shown, the RRC Setup Request may include an information element (IE) indicating the type of RIS.

[0108] Furthermore, when the RIS300 sends the RACH preamble to the gNB100, as described above, a dedicated RACH resource (radio resource) can also be used. Upon receiving an RA preamble using this dedicated RACH resource, the gNB100 can identify that the source of the RA preamble is not a typical UE but the RIS. This dedicated RACH resource can be broadcast within the cell via system information (e.g., SIB1). The RIS300 can then use the dedicated RACH resource to send the RA preamble based on the received SIB1.

[0109] Figure 7 Example 1 illustrates the timing sequence for sending the Initial UE message. For example... Figure 7 As shown, the Initial UE message may include information elements (IEs) indicating the type of RIS (RIS node or RIS-MT).

[0110] Figure 8 Example 2 illustrates the timing sequence for sending the Initial UE message. For example... Figure 8 As shown, the Initial UE message may include information elements (IEs) indicating the type of RIS (Mobile RIS node or RIS-MT).

[0111] According to the above implementation, the identification information of the RIS can be notified using a Radio Resource Control (RRC) layer establishment completion message, establishment request message, or initial message. Therefore, the gNB100 and 6GC30 can efficiently and reliably identify the RIS while taking into account the functions installed on the RIS.

[0112] (4) Other implementation methods

[0113] The above describes the implementation methods, but the present invention is not limited to the description of these implementation methods. It is obvious to those skilled in the art that various modifications and improvements can be made.

[0114] For example, in the above implementation, the RIS is based on the premise that it has a RIS-MT architecture, but the control method of the RIS may not necessarily be based on the MT architecture.

[0115] In the above description, configure, activate, update, indicate, enable, specify, and select can be used interchangeably. Similarly, link, associate, correspond, and map can be used interchangeably, as can allocate, assign, monitor, and map.

[0116] 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.

[0117] In this disclosure, the terms "precoding", "precoder", "weight (precoding weight)", "quasi-co-location (QCL)", "transmission configuration indication state (TCI state)", "spatial relation", "spatial domain filter", "transmit power", "phase rotation", "antenna port", "antenna port group", "layer", "number of layers", "rank", "resource", "resource set", "resource group", "beam", "beamwidth", "beam angle", "antenna", "antenna element", and "panel" are used interchangeably.

[0118] Furthermore, the block structure diagram used in the description of the above embodiments ( Figure 2 , 3 The diagram illustrates blocks organized by function. These functional blocks (structural units) 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 also be implemented by combining software within the aforementioned single or multiple devices.

[0119] 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 performs the sending function is called the transmitting unit or transmitter. In short, as mentioned above, there are no particular limitations on the implementation method.

[0120] Furthermore, the aforementioned gNB100 and RIS300 (the device) can also function as a computer for processing the wireless communication method disclosed herein. Figure 9 This is a diagram illustrating an example of the hardware structure of the device. (As shown...) Figure 9 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.

[0121] 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 without any components.

[0122] The functional blocks of the device (refer to) Figure 2 , 3 This can be achieved through any hardware element or combination of hardware elements in the computer device.

[0123] 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.

[0124] The processor 1001 controls the computer as a whole, for example, 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.

[0125] 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 more than one chip. Additionally, the program can be transmitted from a network via a telecommunications line.

[0126] 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 Memory (EPROM), Electrically Erasable Programmable Memory (EEPROM), 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.

[0127] 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 multifunction 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 be, for example, a database, server, or other suitable media that includes at least one of memory 1002 and storage device 1003.

[0128] 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.

[0129] 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).

[0130] 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).

[0131] Furthermore, devices such as processor 1001 and memory 1002 are connected via bus 1007 for communicating information. Bus 1007 can be configured as a single bus or as different buses between devices.

[0132] 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.

[0133] 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 RRC messages, for example, RRC Connection Setup messages, RRC Connection Reconfiguration messages, etc.

[0134] The various forms / implementations described in this disclosure can also be applied to systems utilizing LTE (Long Term Evolution), LTE-A (LTE-Advanced), 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 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 The system may include at least one of 802.20, Ultra-Wideband (UWB), Bluetooth (registered trademark), other suitable systems, and next-generation systems based on these systems. Furthermore, multiple systems may be combined (e.g., a combination of at least one of LTE and LTE-A with 5G, etc.).

[0135] The processing steps, timing, and processes described in this disclosure can be rearranged without contradiction. For example, the elements of various steps are indicated using an illustrative order in the methods described in this disclosure, but are not limited to the specific order indicated.

[0136] 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 other network node besides the base station, but it can also be a combination of multiple other network nodes (e.g., an MME and an S-GW).

[0137] Information and signals (such as information) can be output from higher (or lower) layers to lower (or higher) layers. They can also be input or output through multiple network nodes.

[0138] 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.

[0139] 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).

[0140] The various forms / implementations described in this disclosure can be used individually or in combination, and can be switched depending on the execution. Furthermore, the notification of predetermined information (e.g., a notification of "It is X") is not limited to being explicit, but can also be implicit (e.g., without notification of the predetermined information).

[0141] 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.

[0142] In addition, software, commands, and information can also be sent and received via transmission media. For example, when 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.) to send software from a webpage, server, or other remote source, at least one of these wired and wireless technologies is included within the definition of transmission media.

[0143] 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 as a whole can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination of these.

[0144] 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.

[0145] The terms “system” and “network” as used in this disclosure are used interchangeably.

[0146] 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 be indicated using indexes.

[0147] 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.

[0148] 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.

[0149] 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)).

[0150] 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.

[0151] 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.

[0152] In this disclosure, the terms "Mobile Station (MS)," "user terminal," "User Equipment (UE)," and "terminal" are used interchangeably.

[0153] 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.

[0154] 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 refers to a movable object with an arbitrary speed of movement. This also includes situations where the mobile body is stationary. Examples of mobile bodies include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, two-wheeled trailers, rickshaws, ships (ships and other watercraft), airplanes, rockets, artificial satellites, Drone (registered trademark), multi-rotor helicopters, quadcopter helicopters, balloons, and objects mounted on them. Furthermore, the mobile body can also be a mobile body that moves autonomously based on operating commands. It can be a means of transportation (e.g., automobiles, airplanes, etc.), a mobile body that moves unmanned (e.g., drones, autonomous vehicles, etc.), or a robot (humanized or unmanned). Additionally, at least one of the base station and mobile station also includes devices that do not necessarily move during communication operations. For example, at least one of the base station and the mobile station can be an IoT (Internet of Things) device such as a sensor.

[0155] 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 also be replaced with side channel (or side link).

[0156] 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.

[0157] 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).

[0158] 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.

[0159] 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.

[0160] 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 time units larger than mini-time slots can be called PDSCH (or PUSCH) mapping type (type) A. PDSCH (or PUSCH) transmitted using mini-time slots can be called PDSCH (or PUSCH) mapping type (type) B.

[0161] 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.

[0162] 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 may not be called a subframe, but rather a time slot, mini-time slot, etc.

[0163] 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.

[0164] 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 the TTI.

[0165] 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 of the schedule can be controlled.

[0166] 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.

[0167] Additionally, a long TTI (e.g., a normal TTI, a subframe, etc.) can be replaced with a TTI with a duration of more than 1 ms, and a short TTI (e.g., a shortened TTI, etc.) can be replaced with a TTI with a duration of less than a long TTI but more than 1 ms.

[0168] 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.

[0169] Furthermore, the temporal domain of an RB can contain one or more symbols, which can be a single time slot, a single mini-time slot, a single subframe, or the length of a single TTI. A single TTI, a single subframe, etc., can each be composed of one or more resource blocks.

[0170] 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.

[0171] 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.

[0172] The Bandwidth Part (BWP) (also known as partial bandwidth, etc.) represents a subset of contiguous common resource blocks (RBs) used for a specific parameter set on 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.

[0173] 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.

[0174] 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."

[0175] 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.

[0176] 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.

[0177] The reference signal can be simply called the Reference Signal (RS), or, depending on the standard applied, the pilot.

[0178] 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".

[0179] Alternatively, the "unit" in the structure of the above devices can be replaced with "section", "circuit", "equipment", etc.

[0180] Any reference to elements using designations such as "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, references to "first" and "second" elements do not imply that only two elements can be used there, or that in some form the first element must precede the second element.

[0181] 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.

[0182] 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.

[0183] The terms "determining" and "determining" as used in this disclosure sometimes encompass a variety of actions. For example, "determining" or "determining" may include actions such as judging, calculating, computing, processing, deriving, investigating, searching (e.g., searching in a table, database, or other data structure), and ascertaining, which are considered as actions of "determining" or "determining." Furthermore, "determining" or "determining" may include actions such as receiving (e.g., receiving information), transmitting (e.g., sending information), inputting, outputting, and accessing (e.g., accessing data in storage), which are considered as actions of "determining" or "determining." Additionally, "determining" or "determining" may include actions such as resolving, selecting, choosing, establishing, and comparing, which are considered as actions of "determining" or "determining." That is, "judgment" and "decision" can include matters that are considered as having been "judged" or "decided". In addition, "judgment (decision)" can also be replaced by "assuming", "expecting", "considering", etc.

[0184] In this disclosure, the phrase "A and B are different" can mean that A and B are not identical. 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."

[0185] Figure 10 An example of the structure of vehicle 2001 is shown. For example... Figure 10 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.

[0186] The drive unit 2002 may be composed 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 to 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).

[0187] 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 obtained by object detection sensor 2028 for detecting obstacles, vehicles, pedestrians, etc.

[0188] 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 communication modules 2013, etc., to provide various multimedia information and multimedia services to the occupants of vehicle 1.

[0189] The Information Services Department 2012 may include input devices that accept input from external sources (such as keyboards, mice, microphones, switches, buttons, sensors, touch panels, etc.) and output devices that implement output to external sources (such as monitors, speakers, LED lights, touch panels, etc.).

[0190] 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.

[0191] 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.

[0192] 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.

[0193] 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 described above, 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 can contain information based on the aforementioned inputs.

[0194] 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 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.

[0195] Label Explanation

[0196] 10: Wireless Communication System

[0197] 20:6GRAN

[0198] 30:6GC

[0199] 100: gNB

[0200] 110: Wireless Communications Department

[0201] 120: RIS Management Department

[0202] 130: Network Interface Department

[0203] 140: Control Department

[0204] 200:UE

[0205] 300: RIS

[0206] 310: RIS-MT Department

[0207] 320: RIS-Panell Division

[0208] 330: System Information Receiving Department

[0209] 340: Control Department

[0210] 1001: Processor

[0211] 1002: Memory

[0212] 1003: Storage device

[0213] 1004: Communication device

[0214] 1005: Input device

[0215] 1006: Output device

[0216] 1007: Bus

[0217] 2001: Vehicles

[0218] 2002: Drive Unit

[0219] 2003: Steering Unit

[0220] 2004: Accelerator Pedal

[0221] 2005: Brake Pedal

[0222] 2006: Gear Shift

[0223] 2007: Left and right front wheels

[0224] 2008: Left and right rear wheels

[0225] 2009: Axle

[0226] 2010: Electronic Control Department

[0227] 2012: Information Services Department

[0228] 2013: Communication Module

[0229] 2021: Current Sensor

[0230] 2022: Speed ​​Sensor

[0231] 2023: Barometric Pressure Sensor

[0232] 2024: Vehicle Speed ​​Sensor

[0233] 2025: Accelerometer

[0234] 2026: Brake Pedal Sensor

[0235] 2027: Gearshift Sensor

[0236] 2028: Object Detection Sensor

[0237] 2029: Accelerator Pedal Sensor

[0238] 2030: Driver Assistance Systems Department

[0239] 2031: Microprocessors

[0240] 2032: Memory (ROM, RAM)

[0241] 2033: Communication Port

Claims

1. A wireless base station, comprising: The control unit executes the settings in the radio resource control layer between itself and the wireless relay device with a reflector; and The receiving unit receives the establishment completion message of the radio resource control layer from the wireless relay device. The receiving unit receives the establishment completion message containing identification information, which identifies the case of the wireless relay device.

2. A wireless base station, comprising: The control unit executes the settings in the radio resource control layer between itself and the wireless relay device with a reflector; and The receiving unit receives the establishment request message from the radio resource control layer from the wireless relay device. The receiving unit receives the establishment request message containing identification information, which identifies the case of the wireless relay device.

3. A wireless base station, comprising: The control unit executes the random access process with the wireless relay device equipped with a reflector; and The receiving unit receives from the wireless relay device a random access channel using the wireless resources dedicated to the wireless relay device. The control unit identifies the wireless relay device based on the fact that the wireless resources are being used.

4. The wireless base station according to claim 3, wherein, The wireless base station has a transmitting unit that sends system information indicating the wireless resources to the wireless relay device.

5. A wireless base station, comprising: The control unit executes the settings in the radio resource control layer between itself and the wireless relay device with a reflector; and The transmitting unit sends an initial message, along with the aforementioned settings, to the network. The transmitting unit sends the initial message containing identification information, which identifies the case of the wireless relay device.

6. A wireless communication method, which is a wireless communication method in a wireless base station, comprising the following steps: Perform the settings in the radio resource control layer between the wireless repeater device with the reflector; and Receive the radio resource control layer establishment completion message from the wireless relay device. In the receiving step, the establishment completion message containing identification information is received, wherein the identification information identifies the case of the wireless relay device.

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