KR20240071523A - Method and apparatus for mobility support utilizing location information of user equipment in Non-Terrestrial Network - Google Patents

Abstract

This disclosure relates to 5G or 6G communication systems to support higher data rates. This disclosure relates to a method and device for supporting mobility using location information of a terminal in a non-terrestrial network system.

Description

Method and apparatus for mobility support utilizing location information of user equipment in Non-Terrestrial Network}

This disclosure relates to the operation of terminals and base stations in wireless communication systems, and particularly to a method and device for supporting mobility using location information of a terminal in a non-terrestrial network system.

5G mobile communication technology defines a wide frequency band to enable fast transmission speeds and new services, and includes sub-6 GHz ('Sub 6GHz') bands such as 3.5 gigahertz (3.5 GHz) as well as millimeter wave (mm) bands such as 28 GHz and 39 GHz. It is also possible to implement it in the ultra-high frequency band ('Above 6GHz') called Wave. In addition, in the case of 6G mobile communication technology, which is called the system of Beyond 5G, Terra is working to achieve a transmission speed that is 50 times faster than 5G mobile communication technology and an ultra-low delay time that is reduced to one-tenth. Implementation in Terahertz bands (e.g., 95 GHz to 3 THz) is being considered.

In the early days of 5G mobile communication technology, there were concerns about ultra-wideband services (enhanced Mobile BroadBand, eMBB), ultra-reliable low-latency communications (URLLC), and massive machine-type communications (mMTC). With the goal of satisfying service support and performance requirements, efficient use of ultra-high frequency resources, including beamforming and massive array multiple input/output (Massive MIMO) to alleviate radio wave path loss and increase radio wave transmission distance in ultra-high frequency bands. Various numerology support (multiple subcarrier interval operation, etc.) and dynamic operation of slot format, initial access technology to support multi-beam transmission and broadband, definition and operation of BWP (Band-Width Part), large capacity New channel coding methods such as LDPC (Low Density Parity Check) codes for data transmission and Polar Code for highly reliable transmission of control information, L2 pre-processing, and dedicated services specialized for specific services. Standardization of network slicing, etc., which provides networks, has been carried out.

Currently, discussions are underway to improve and enhance the initial 5G mobile communication technology in consideration of the services that 5G mobile communication technology was intended to support, based on the vehicle's own location and status information. V2X (Vehicle-to-Everything) to help autonomous vehicles make driving decisions and increase user convenience, and NR-U (New Radio Unlicensed), which aims to operate a system that meets various regulatory requirements in unlicensed bands. ), NR terminal low power consumption technology (UE Power Saving), Non-Terrestrial Network (NTN), which is direct terminal-satellite communication to secure coverage in areas where communication with the terrestrial network is impossible, positioning, etc. Physical layer standardization for technology is in progress.

In addition, IAB (IAB) provides a node for expanding the network service area by integrating intelligent factories (Industrial Internet of Things, IIoT) to support new services through linkage and convergence with other industries, and wireless backhaul links and access links. Integrated Access and Backhaul, Mobility Enhancement including Conditional Handover and DAPS (Dual Active Protocol Stack) handover, and 2-step Random Access (2-step RACH for simplification of random access procedures) Standardization in the field of wireless interface architecture/protocol for technologies such as NR) is also in progress, and 5G baseline for incorporating Network Functions Virtualization (NFV) and Software-Defined Networking (SDN) technology Standardization in the field of system architecture/services for architecture (e.g., Service based Architecture, Service based Interface) and Mobile Edge Computing (MEC), which provides services based on the location of the terminal, is also in progress.

When this 5G mobile communication system is commercialized, an explosive increase in connected devices will be connected to the communication network. Accordingly, it is expected that strengthening the functions and performance of the 5G mobile communication system and integrated operation of connected devices will be necessary. To this end, eXtended Reality (XR) and Artificial Intelligence to efficiently support Augmented Reality (AR), Virtual Reality (VR), and Mixed Reality (MR). , AI) and machine learning (ML), new research will be conducted on 5G performance improvement and complexity reduction, AI service support, metaverse service support, and drone communication.

In addition, the development of these 5G mobile communication systems includes new waveforms, full dimensional MIMO (FD-MIMO), and array antennas to ensure coverage in the terahertz band of 6G mobile communication technology. , multi-antenna transmission technology such as Large Scale Antenna, metamaterial-based lens and antenna to improve coverage of terahertz band signals, high-dimensional spatial multiplexing technology using OAM (Orbital Angular Momentum), RIS ( In addition to Reconfigurable Intelligent Surface technology, Full Duplex technology, satellite, and AI (Artificial Intelligence) to improve the frequency efficiency of 6G mobile communication technology and system network are utilized from the design stage and end-to-end. -to-End) Development of AI-based communication technology that realizes system optimization by internalizing AI support functions, and next-generation distributed computing technology that realizes services of complexity beyond the limits of terminal computing capabilities by utilizing ultra-high-performance communication and computing resources. It could be the basis for .

Meanwhile, mobility support methods and devices using terminal location information have been proposed in non-terrestrial network systems, and for terminals that can utilize these, mobility support methods using relative location measurements of terminals and networks are different from those based on existing signal strength. The need arose.

The disclosed embodiment seeks to provide a mobility support method and device using location information of a terminal in a non-terrestrial network system in a wireless communication system.

According to an embodiment of the present disclosure, a method for a terminal to trigger an event includes an operation of performing a communication connection with a first base station, an adjacent Terrestiral Network (TN) including the first base station, and a Non-Terrestrial Network (NTN) from the first base station. ) An operation to receive location and threshold information of base stations, and based on the information, the terminal triggers an event, for example, an event or conditional handover that transmits a measurement report (Trigger) ) may include actions such as:

The technical problems to be achieved in the embodiments of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned are clear to those skilled in the art from the description below. It will be understandable.

The present disclosure provides an apparatus and method for improving mobility performance by effectively deriving location information of a terminal in a wireless communication system.

Figure 1 is a diagram illustrating an environment in which one or more TN networks coexist within a relatively large NTN network in an environment in which a terrestrial network and a non-terrestrial network coexist according to the present disclosure, and a terminal (UE) within this environment.
Figure 2 is a diagram showing location information acquisition and event trigger operations according to an embodiment of the present disclosure.
FIG. 3 is a diagram illustrating an environment in which a TN network is a serving cell and an NTN network is an SCell in an environment where a terrestrial network and a non-terrestrial network coexist according to the present disclosure, and a terminal (UE) within this environment.
Figure 4 is a diagram showing the structure of a base station according to an embodiment of the present disclosure.
Figure 5 is a diagram showing the structure of a terminal according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. At this time, it should be noted that in the attached drawings, identical components are indicated by identical symbols whenever possible. Additionally, detailed descriptions of well-known functions and configurations that may obscure the gist of the present invention will be omitted.

In describing the embodiments in this specification, description of technical content that is well known in the technical field to which the present invention belongs and that is not directly related to the present invention will be omitted. This is to convey the gist of the present invention more clearly without obscuring it by omitting unnecessary explanation.

For the same reason, some components are exaggerated, omitted, or schematically shown in the accompanying drawings. Additionally, the size of each component does not entirely reflect its actual size. In each drawing, identical or corresponding components are assigned the same reference numbers.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. The present embodiments are merely provided to ensure that the disclosure of the present invention is complete and to provide common knowledge in the technical field to which the present invention pertains. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

At this time, it will be understood that each block of the processing flow diagram diagrams and combinations of the flow diagram diagrams can be performed by computer program instructions. These computer program instructions can be mounted on a processor of a general-purpose computer, special-purpose computer, or other programmable data processing equipment, so that the instructions performed through the processor of the computer or other programmable data processing equipment are described in the flow chart block(s). It creates the means to perform functions. These computer program instructions may also be stored in computer-usable or computer-readable memory that can be directed to a computer or other programmable data processing equipment to implement a function in a particular manner, so that the computer-usable or computer-readable memory The instructions stored in may also produce manufactured items containing instruction means that perform the functions described in the flow diagram block(s). Computer program instructions can also be mounted on a computer or other programmable data processing equipment, so that a series of operational steps are performed on the computer or other programmable data processing equipment to create a process that is executed by the computer, thereby generating a process that is executed by the computer or other programmable data processing equipment. Instructions that perform processing equipment may also provide steps for executing the functions described in the flow diagram block(s).

Additionally, each block may represent a module, segment, or portion of code that includes one or more executable instructions for executing specified logical function(s). Additionally, it should be noted that in some alternative execution examples, it is possible for the functions mentioned in the blocks to occur out of order. For example, it is possible for two blocks shown in succession to be performed substantially at the same time, or it is possible for the blocks to be performed in reverse order depending on the corresponding function.

At this time, the term '~unit' used in this embodiment refers to software or hardware components such as FPGA or ASIC, and the '~unit' performs certain roles. However, '~part' is not limited to software or hardware. The '~ part' may be configured to reside in an addressable storage medium and may be configured to reproduce on one or more processors. Therefore, as an example, '~ part' refers to components such as software components, object-oriented software components, class components, and task components, processes, functions, properties, and procedures. , subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables. The functions provided within the components and 'parts' may be combined into a smaller number of components and 'parts' or may be further separated into additional components and 'parts'. Additionally, components and 'parts' may be implemented to regenerate one or more CPUs within a device or a secure multimedia card.

Terms used in the following description to identify a connection node, a term referring to network entities, a term referring to messages, a term referring to an interface between network objects, and a term referring to various types of identification information. The following are examples for convenience of explanation. Accordingly, the present invention is not limited to the terms described below, and other terms referring to objects having equivalent technical meaning may be used.

Hereinafter, the base station is the entity that performs resource allocation for the terminal and may be at least one of gNode B, eNode B, Node B, BS (Base Station), wireless access unit, base station controller, or node on the network. A terminal may include a user equipment (UE), a mobile station (MS), a cellular phone, a smartphone, a computer, or a multimedia system capable of performing communication functions. In this disclosure, downlink (DL) refers to a wireless transmission path of a signal transmitted from a base station to a terminal, and uplink (UL) refers to a wireless transmission path of a signal transmitted from a terminal to a base station. In addition, although the LTE or LTE-A system may be described below as an example, embodiments of the present disclosure can also be applied to other communication systems with similar technical background or channel types. For example, the 5th generation mobile communication technology (5G, new radio, NR) developed after LTE-A may be included in a system to which embodiments of the present disclosure can be applied, and 5G hereinafter refers to existing LTE, LTE-A, and It may be a concept that includes other similar services. In addition, this disclosure may be applied to other communication systems through some modifications without significantly departing from the scope of the present disclosure at the discretion of a person with skilled technical knowledge. At this time, it will be understood that each block of the processing flow diagram diagrams and combinations of the flow diagram diagrams can be performed by computer program instructions.

For convenience of description below, the present invention uses terms and names defined in the 5GS and NR standards, which are standards defined by the 3GPP (The 3rd Generation Partnership Project) organization among currently existing communication standards. However, the present invention is not limited by the above terms and names, and can be equally applied to wireless communication networks complying with other standards. For example, the present invention can be applied to 3GPP 5GS/NR (5th generation mobile communication standard).

1 shows an environment in which one or more TN networks coexist within a relatively large NTN network in an environment in which a terrestrial network (TN) and a non-terrestrial network (NTN) coexist according to the present disclosure, and such This is a diagram showing a terminal (UE) in an environment.

According to Figure 1, the terminal is a terminal capable of using NTN that can use both terrestrial and non-terrestrial networks, and the gNBs, which are the transmitting and receiving terminals of the terrestrial and non-terrestrial networks, are connected to the Core Network by wire/wireless. Each gNB has a physical reference location where the gNB provides services. These reference locations can be displayed as follows.

- The reference location of the service area (NTN#1 cell) provided by satellite base station NTN#1:

- The reference location of the service area (TN#1 cell) provided by TN#1 ground station:

- The reference location of the service area (TN#2 cell) provided by TN#2 ground station:

Additionally, each base station may have a distance threshold from each reference location that divides the boundary of the service area according to the physical location difference, as shown below.

- Distance threshold for NTN#1 cell:

- Distance threshold for TN#1 cell:

- Distance threshold for TN#2 cell:

Alternatively, each cell may display the service area in a different way, which may be depicted in the form of a polygon with a list of certain reference positions as its vertices, and may have a list of these reference positions as shown below.

- List of locations based on the service area vertices of NTN#1 cell:

- List of service area vertex positions of TN#1 cell:

- List of locations based on the service area vertices of TN#2 cell:

In this environment, the terminal can obtain each distance as follows by comparing the measured location of the terminal with the reference location of each cell.

- Distance between the terminal and the reference location of NTN#1 cell:

- Distance between the terminal and the reference location of TN#1 cell:

- Distance between the reference location of the terminal and TN#2 cell:

Figure 2 is a diagram showing location information acquisition and event trigger operations according to an embodiment of the present disclosure.

Referring to FIG. 2, in operation 210, the base station 205 may provide location information to the terminal 200. The location information may include reference locations of terrestrial and non-terrestrial networks and distance thresholds or reference locations from which service areas can be inferred, and may be in the form of a list. These reference locations of terrestrial and non-terrestrial networks and distance thresholds or reference locations from which the service area can be inferred may be transmitted in the form of a list from the base station 205 to the terminal 205 through the following signal.

- For example, distance thresholds or reference positions from which the reference positions and/or service areas of terrestrial and/or non-terrestrial networks can be inferred are determined from the serving base station 205 to which the terminal 200 is connected. It is a type of information element in a unicast signal, for example, a radio resource control (RRC) signal, and can be transmitted by being included in an information signal such as reporconfigNR. Alternatively, it may be transmitted by being included in any medium access control (MAC) signal or physical (PHY) signal.

- For example, distance thresholds or reference positions that can infer the reference positions and/or service area of the terrestrial and/or non-terrestrial network are transmitted from the serving base station 205 to which the terminal 200 is connected. 200) may be transmitted by being included in a broadcast signal, for example, a system information block (SIB) signal.

- For example, distance thresholds or reference positions that can infer the reference positions and/or service area of the terrestrial and/or non-terrestrial network are transmitted from the serving base station 205 to which the terminal 200 is connected. 200) may be transmitted by being included in a group-based broadcast (groupcast) signal, for example, a system information block (SIB) signal.

- For example, distance thresholds or reference positions from which the reference positions and/or service area of a terrestrial and/or non-terrestrial network can be inferred are from any base station 205 to which the terminal 200 is connected. It may be transmitted by being included in a broadcast signal transmitted to, for example, a system information block (SIB) signal.

As the location of the terminal 200 changes, the service availability of any base station 205 in the terrestrial network and non-terrestrial network changes, and this changed situation becomes a condition to determine the events of any terminal 200 and the base station 205 and their corresponding events. operations, such as transmitting a measurement report, performing a conditional handover, performing a handover without conditional random access (RACH-less handover), and random access. You can trigger access, etc.

Referring to FIG. 2, in operation 220, the base station 205 may transmit event setting information and information on event trigger conditions to the terminal 200. For example, the base station 205 can set these events and the conditions for triggering each event to each terminal 200 through an RRC signal, for example, an RRCReconfiguration message (it is not limited to the RRC reconfiguration message) ).

In this environment, the terminal 200, which knows the reference positions of adjacent terrestrial networks and non-terrestrial networks and distance thresholds or reference positions from which the service area can be inferred, determines which base station 205 it exists in the service area of. You can judge. For example,

- The terminal 200 can identify and determine which TN cell i (for example, when the TN cell ID is i) by comparing distances as follows.

■

- The terminal 200 can identify and determine which NTN cell i (for example, when the NTN cell ID is i) by comparing distances as follows.

■

- NTN-TN overlapp condition: The terminal 200 can identify and determine which TN cell i (for example, if the TN cell ID is i) and NTN cell j by comparing the distances as follows. .

■

- TN available condition: The terminal 200 can identify and determine that it does not belong to any TN cell by comparing distances as follows.

■

- NTN only condition: The terminal 200 can identify and determine that it does not belong to any TN cell and is included only in NTN cell j by comparing distances as follows.

■

- TN available condition: The terminal 200 can identify and determine that it belongs to at least one TN cell by comparing distances as follows.

■

Above, Hys can be a margin value (hysteresis) for any decision set by the network, and its unit is the same as the unit of distance.

Using the location information and judgment criteria provided by the base station 205 as described above, the terminal 200 can determine which base station service it can receive according to its location. In other words, when the terminal 200 moves with mobility, its location changes and the service availability of any base station changes.

In one embodiment, the terminal 200 may trigger an event through the following determination.

는 모든 i 에 대해서 (for all i) 라는 뜻이며, sign

means (for all i ),

는 존재하는 어떠한 i 에 대해서 (for any existing i) 라는 뜻이다. sign

means (for any existing i ).

The i may be a cell ID indicating a certain cell, a base station ID indicating a certain base station, or a network ID indicating a certain network. In order to distinguish between all i or any i, the terminal 200 may receive a list of i to be used for this determination from the base station 205 through RRC, SIB, or other messages.

When the terminal 200, which was receiving a terrestrial network service, moves to an area where only non-terrestrial network services are available, the terminal can make the relevant decision based on the following conditions. That is, the terminal 200 determines whether the criteria or conditions for triggering the event are satisfied (operation 230). If the event trigger conditions are met, the terminal 200 can trigger the set event and perform the event operation. Specific operations are explained below.

One. The terminal 200 determines the location conditions below to determine any event, for example, transmitting a measurement report, performing a conditional handover to a non-terrestrial network, or performing a conditional handover to a non-terrestrial network. Events such as performing a handover without random access (without RACH) (RACH-less handover) and performing random access to a non-terrestrial network can be triggered. (Entering condition for this event)

A. The terminal 200 can confirm that the distance condition is outside the service area for all terrestrial network cells and determine that it is included in a certain non-terrestrial network (NTN) cell j as follows and trigger an event.

i. The terminal 200 can trigger an event by comparing the distance threshold of each cell with the distance between the terminal and the reference location of each cell.

)그리고 각 셀의 서비스 영역 꼭지점 기준 위치 리스트를 통해 도출한 각 셀의 절대 영역 (

) 을 비교하여 이벤트를 트리거 할 수 있다. 여기서 각 셀의 절대 영역 (

) 은 각 셀의 서비스 영역 꼭지점 기준 위치들을 꼭지점으로 하는 직선들로 인하여 그려지는 다각형이다.ii. The terminal 200 determines the distance threshold of each cell, the distance between the terminal and the reference position of each cell, and the absolute position of the terminal (

)And the absolute area of each cell derived through the list of service area vertex reference positions of each cell (

) You can trigger an event by comparing . Here, the absolute area of each cell (

) is a polygon drawn with straight lines whose vertices are the reference positions of the service area vertices of each cell.

B. The terminal 200 additionally simultaneously considers event trigger conditions according to any of the signal strength measurements below, for example, when the base station sets any one or more of the above location-based conditions and the signal strength measurement conditions below. If all of these are satisfied, an event can be triggered.

i. A2: When the received signal strength of the terrestrial network cell being served is below a certain threshold set by the base station.

One. Ms + Hys < Thresh

A. Ms is the measurement result of the serving cell, not taking into account any offsets.

B. Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

C. Thresh is the threshold parameter for this event (ie a2-Threshold as defined within reportConfigNR for this event).

D. Ms is expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

E. Hys is expressed in dB.

F. Thresh is expressed in the same unit as Ms.

ii. A2': When the received signal strength of all terrestrial network cells is below a certain threshold set by the base station.

Ms(i) + Hys < Thresh One.

Ms(i) + Hys < Thresh

A. Ms(i) is the measurement result of the cell i , not taking into account any offsets.

B. Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

C. Thresh is the threshold parameter for this event (ie a2-Threshold as defined within reportConfigNR for this event).

D. Ms is expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

E. Hys is expressed in dB.

F. Thresh is expressed in the same unit as Ms.

iii. A1': When the received signal strength of a non-terrestrial network (NTN) cell is above a certain threshold set by the base station.

One. Ms(j) - Hys > Thresh

A. Ms(j) is the measurement result of the cell j , not taking into account any offsets.

B. Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

C. Thresh is the threshold parameter for this event (ie a2-Threshold as defined within reportConfigNR for this event).

D. Ms is expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

E. Hys is expressed in dB.

F. Thresh is expressed in the same unit as Ms.

iv. A3': When the received signal strength of an adjacent non-terrestrial network (NTN) cell is greater than the received signal strength of a terrestrial network serving cell than a certain threshold set by the base station.

One. Mn + Ofn + Ocn - Hys > Mp + Ofp + Ocp + Off

A. Mn is the measurement result of the neighboring (NTN) cell, not taking into account any offsets.

B. Ofn is the measurement object specific offset of the reference signal of the neighbor (NTN) cell (ie offsetMO as defined within measObjectNR corresponding to the neighbor cell).

C. Ocn is the cell specific offset of the neighbor (NTN) cell (ie cellIndividualOffset as defined within measObjectNR corresponding to the frequency of the neighbor cell), and set to zero if not configured for the neighbor cell.

D. Mp is the measurement result of the (TN) SpCell, not taking into account any offsets.

E. Ofp is the measurement object specific offset of the (TN) SpCell (ie offsetMO as defined within measObjectNR corresponding to the SpCell).

F. Ocp is the cell specific offset of the (TN) SpCell (ie cellIndividualOffset as defined within measObjectNR corresponding to the SpCell), and is set to zero if not configured for the SpCell.

G. Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

H. Off is the offset parameter for this event (ie a3-Offset as defined within reportConfigNR for this event).

I. Mn, Mp are expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

J. Ofn , Ocn , Ofp , Ocp , Hys , Off are expressed in dB.

v. A3": When the received signal strength of an adjacent non-terrestrial network (NTN) cell is greater than the received signal strength of all configured terrestrial network serving cells or more than a certain threshold set by the base station.

Mp(i) + Ofp(i) + Ocp(i) + Off 1. Mn + Ofn + Ocn - Hys >

Mp( i ) + Offp( i ) + Ocp( i ) + Off

A. Mn is the measurement result of the neighboring (NTN) cell, not taking into account any offsets.

B. Ofn is the measurement object specific offset of the reference signal of the neighbor (NTN) cell (ie offsetMO as defined within measObjectNR corresponding to the neighbor cell).

C. Ocn is the cell specific offset of the neighbor (NTN) cell (ie cellIndividualOffset as defined within measObjectNR corresponding to the frequency of the neighbor cell), and set to zero if not configured for the neighbor cell.

D. Mp(i) is the measurement result of the (TN) SpCell i , not taking into account any offsets.

E. Ofp(i) is the measurement object specific offset of the (TN) SpCell i (ie offsetMO as defined within measObjectNR corresponding to the SpCell).

F. Ocp(i) is the cell specific offset of the (TN) SpCell i (ie cellIndividualOffset as defined within measObjectNR corresponding to the SpCell), and is set to zero if not configured for the SpCell.

G. Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

H. Off is the offset parameter for this event (ie a3-Offset as defined within reportConfigNR for this event).

I. Mn, Mp are expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

J. Ofn , Ocn , Ofp , Ocp , Hys , Off are expressed in dB.

C. The terminal 200 simultaneously considers the event trigger conditions according to any of the time measurements below, for example, the base station sets any one or more of the above location-based conditions, signal strength measurement conditions, and time measurement conditions. In one case, if all of these are satisfied, an event can be triggered.

i. T1: When the terminal's time is above a certain threshold set by the base station.

One. Mt > Thresh1

A. Mt is the time measured at UE.

B. Thresh1 is the threshold parameter for this event (ie t1-Threshold as defined within reportConfigNR for this event).

C. Duration is the duration parameter for this event (ie duration as defined within reportConfigNR for this event).

D. Mt is expressed in ms .

E. Thresh1 is expressed in the same unit as Mt.

F. Duration is expressed in the same unit as Mt.

ii. T1': When the terminal's time is below a certain threshold set by the base station.

One. Mt < Thresh1

A. Mt is the time measured at UE.

B. Thresh1 is the threshold parameter for this event (ie t1-Threshold as defined within reportConfigNR for this event).

C. Duration is the duration parameter for this event (ie duration as defined within reportConfigNR for this event).

D. Mt is expressed in ms .

E. Thresh1 is expressed in the same unit as Mt.

F. Duration is expressed in the same unit as Mt.

D. In addition to the event determination conditions described above, the terminal 200 can support various events that can be supported by standards and terminals, such as event A based on signal strength measurement, event B based on inter-Rat measurement, or event I based on interference measurement, and various events. Events can also be triggered by additionally determining events. Of course, the base station can set the conditions for these events.

2. The terminal 200 determines the location conditions below to determine any event, for example, transmitting a measurement report, performing conditional handover to the terrestrial network, and random access according to the conditions to the terrestrial network. Events such as RACH-less handover and random access to the terrestrial network can be triggered. (Entering condition for this event)

A. The terminal 200 may determine that it is now included in the service area of a terrestrial network (TN) cell i and trigger an event as follows.

i. The terminal 200 can trigger an event by comparing the distance threshold of each cell with the distance between the terminal and the reference location of each cell.

를 만족하는 i를 찾아 모든 i에 대해 이벤트 트리거 One.

Find i that satisfies and trigger an event for all i

2. Find i that satisfies, and if there is more than one i, the following conditions are additionally judged among them.

가 작은 i를 선택하여 이벤트 트리거 A. The most

Trigger an event by selecting the smaller i

B. Event trigger by selecting i with the best received signal strength performance (large RSRP, RSRQ, RSSI, CQI, SINR, SNR size)

)그리고 각 셀의 서비스 영역 꼭지점 기준 위치 리스트를 통해 도출한 각 셀의 절대 영역 (

) 을 비교하여 이벤트를 트리거 할 수 있다. 여기서 각 셀의 절대 영역 (

) 은 각 셀의 서비스 영역 꼭지점 기준 위치들을 꼭지점으로 하는 직선들로 인하여 그려지는 다각형이다. ii. The terminal 200 determines the distance threshold of each cell, the distance between the terminal and the reference position of each cell, and the absolute position of the terminal (

)And the absolute area of each cell derived through the list of service area vertex reference positions of each cell (

) You can trigger an event by comparing . Here, the absolute area of each cell (

) is a polygon drawn with straight lines whose vertices are the reference positions of the service area vertices of each cell.

를 만족하는 i를 찾아 모든 i에 대해 이벤트 트리거 One.

Find i that satisfies and trigger an event for all i

를 만족하는 i를 찾고, i 가 한 개 이상일 경우 그 중에서 아래의 조건을 추가 판단한다. 2.

Find i that satisfies, and if there is more than one i, the following conditions are additionally judged among them.

가 작은 i를 선택하여 이벤트 트리거 A. The most

Trigger an event by selecting the smaller i

B. Event trigger by selecting i with the best received signal strength performance (large RSRP, RSRQ, RSSI, CQI, SINR, SNR size)

B. The terminal 200 additionally simultaneously considers event trigger conditions according to any of the signal strength measurements below, for example, when the base station sets any one or more of the above location-based conditions and the signal strength measurement conditions below. If all of these are satisfied, an event can be triggered.

i. A2: When the received signal strength of the non-terrestrial network cell being served is below a certain threshold set by the base station.

One. Ms + Hys < Thresh

A. Ms is the measurement result of the serving cell, not taking into account any offsets.

B. Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

C. Thresh is the threshold parameter for this event (ie a2-Threshold as defined within reportConfigNR for this event).

D. Ms is expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

E. Hys is expressed in dB.

F. Thresh is expressed in the same unit as Ms.

ii. A1': When the received signal strength of a terrestrial network (TN) cell is above a certain threshold set by the base station.

One.

A. Ms(j) is the measurement result of the cell j , not taking into account any offsets.

B. Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

C. Thresh is the threshold parameter for this event (ie a2-Threshold as defined within reportConfigNR for this event).

D. Ms is expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

E. Hys is expressed in dB.

F. Thresh is expressed in the same unit as Ms.

iii. A3': When the received signal strength of an adjacent terrestrial network (TN) cell is greater than the received signal strength of a non-terrestrial network serving cell than a certain threshold set by the base station.

One. Mn + Ofn + Ocn - Hys > Mp + Ofp + Ocp + Off

A. Mn is the measurement result of the neighboring (TN) cell, not taking into account any offsets.

B. Ofn is the measurement object specific offset of the reference signal of the neighbor (TN) cell (ie offsetMO as defined within measObjectNR corresponding to the neighbor cell).

C. Ocn is the cell specific offset of the neighbor (TN) cell (ie cellIndividualOffset as defined within measObjectNR corresponding to the frequency of the neighbor cell), and set to zero if not configured for the neighbor cell.

D. Mp is the measurement result of the (NTN) SpCell, not taking into account any offsets.

E. Ofp is the measurement object specific offset of the (NTN) SpCell (ie offsetMO as defined within measObjectNR corresponding to the SpCell).

F. Ocp is the cell specific offset of the (NTN) SpCell (ie cellIndividualOffset as defined within measObjectNR corresponding to the SpCell), and is set to zero if not configured for the SpCell.

G. Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

H. Off is the offset parameter for this event (ie a3-Offset as defined within reportConfigNR for this event).

I. Mn, Mp are expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

J. Ofn , Ocn , Ofp , Ocp , Hys , Off are expressed in dB.

C. The terminal 200 simultaneously considers the event trigger conditions according to any of the time measurements below, for example, the base station sets any one or more of the above location-based conditions, signal strength measurement conditions, and time measurement conditions. In one case, if all of these are satisfied, an event can be triggered.

i. T1: When the terminal's time is above a certain threshold set by the base station.

One. Mt > Thresh1

A. Mt is the time measured at UE.

B. Thresh1 is the threshold parameter for this event (ie t1-Threshold as defined within reportConfigNR for this event).

C. Duration is the duration parameter for this event (ie duration as defined within reportConfigNR for this event).

D. Mt is expressed in ms .

E. Thresh1 is expressed in the same unit as Mt.

F. Duration is expressed in the same unit as Mt.

ii. T1': When the terminal's time is below a certain threshold set by the base station.

One. Mt < Thresh1

A. Mt is the time measured at UE.

B. Thresh1 is the threshold parameter for this event (ie t1-Threshold as defined within reportConfigNR for this event).

C. Duration is the duration parameter for this event (ie duration as defined within reportConfigNR for this event).

D. Mt is expressed in ms .

E. Thresh1 is expressed in the same unit as Mt.

F. Duration is expressed in the same unit as Mt.

D. In addition to the event determination conditions described above, the terminal 200 can support various events that can be supported by standards and terminals, such as event A based on signal strength measurement, event B based on inter-Rat measurement, or event I based on interference measurement, and various events. Events can also be triggered by additionally determining events. Of course, the base station can set the conditions for these events.

3. The terminal 200 determines the location conditions below to determine any event, such as transmission of a measurement report, addition of a terrestrial network Secondary Cell (SCell), or random access to the terrestrial network. You can trigger events such as execution. (Entering condition for this event)

A. The terminal 200 may trigger an event by determining that it is included in a certain non-terrestrial network (NTN) cell j as follows.

i. The terminal 200 can trigger an event by comparing the distance threshold of each cell with the distance between the terminal and the reference location of each cell.

One.

B. The terminal 200 may trigger an event by determining that it is included in the service area of a terrestrial network (TN) cell i as follows.

i. The terminal 200 can trigger an event by comparing the distance threshold of each cell with the distance between the terminal and the reference location of each cell.

를 만족하는 i를 찾아 해당 i 가 SCell이 아닌 경우 모든 i에 대해 이벤트 트리거 One.

Find i that satisfies and trigger an event for all i if that i is not a SCell

를 만족하는 i를 찾고, i 가 한 개 이상일 경우 그 중에서 아래의 조건을 추가 판단한다. 2.

Find i that satisfies , and if there is more than one i, the following conditions are additionally judged among them.

가 작은 i를 선택하여 이벤트 트리거 A. The most non-SCell i cells

Trigger an event by selecting the smaller i

B. Trigger an event by selecting i with the best received signal strength performance (large RSRP, RSRQ, RSSI, CQI, SINR, SNR size) among i cells other than SCell

) 그리고 각 셀의 서비스 영역 꼭지점 기준 위치 리스트를 통해 도출한 각 셀의 절대 영역 (

) 을 비교하여 이벤트를 트리거 할 수 있다. 여기서 각 셀의 절대 영역 (

) 은 각 셀의 서비스 영역 꼭지점 기준 위치들을 꼭지점으로 하는 직선들로 인하여 그려지는 다각형이다. ii. The terminal 200 determines the distance threshold of each cell, the distance between the terminal and the reference position of each cell, and the absolute position of the terminal (

) And the absolute area of each cell derived through the list of service area vertex reference positions of each cell (

) You can trigger an event by comparing . Here, the absolute area of each cell (

) is a polygon drawn with straight lines whose vertices are the reference positions of the service area vertices of each cell.

를 만족하는 i를 찾아 해당 i 가 SCell이 아닌 경우 모든 i에 대해 이벤트 트리거 One.

Find i that satisfies and trigger an event for all i if that i is not a SCell

를 만족하는 i를 찾고, i 가 한 개 이상일 경우 그 중에서 아래의 조건을 추가 판단한다. 2.

Find i that satisfies , and if there is more than one i, the following conditions are additionally judged among them.

가 작은 i를 선택하여 이벤트 트리거 A. The most non-SCell i cells

Trigger an event by selecting the smaller i

B. Trigger an event by selecting i with the best received signal strength performance (large RSRP, RSRQ, RSSI, CQI, SINR, SNR size) among i cells other than SCell

C. The terminal 200 additionally simultaneously considers event trigger conditions according to any of the signal strength measurements below, for example, when the base station sets any one or more of the above location-based conditions and the signal strength measurement conditions below. If all of these are satisfied, an event can be triggered.

i. A2: When the received signal strength of the non-terrestrial network cell being served is above a certain threshold set by the base station.

One. Ms - Hys > Thresh

A. Ms is the measurement result of the serving cell, not taking into account any offsets.

B. Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

C. Thresh is the threshold parameter for this event (ie a2-Threshold as defined within reportConfigNR for this event).

D. Ms is expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

E. Hys is expressed in dB.

F. Thresh is expressed in the same unit as Ms.

ii. A1': When the received signal strength of any terrestrial network (TN) cell is above a certain threshold set by the base station.

(Ms(i) - Hys > Thresh) One.

(Ms(i) - Hys > Thresh)

A. Ms(j) is the measurement result of the cell j , not taking into account any offsets.

B. Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

C. Thresh is the threshold parameter for this event (ie a2-Threshold as defined within reportConfigNR for this event).

D. Ms is expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

E. Hys is expressed in dB.

F. Thresh is expressed in the same unit as Ms.

D. The terminal 200 simultaneously considers the event trigger conditions according to any of the time measurements below, for example, the base station sets any one or more of the above location-based conditions, signal strength measurement conditions, and time measurement conditions. In one case, if all of these are satisfied, an event can be triggered.

i. T1: When the terminal's time is above a certain threshold set by the base station.

One. Mt > Thresh1

A. Mt is the time measured at UE.

B. Thresh1 is the threshold parameter for this event (ie t1-Threshold as defined within reportConfigNR for this event).

C. Duration is the duration parameter for this event (ie duration as defined within reportConfigNR for this event).

D. Mt is expressed in ms .

E. Thresh1 is expressed in the same unit as Mt.

F. Duration is expressed in the same unit as Mt.

ii. T1': When the terminal's time is below a certain threshold set by the base station.

One. Mt < Thresh1

A. Mt is the time measured at UE.

B. Thresh1 is the threshold parameter for this event (ie t1-Threshold as defined within reportConfigNR for this event).

C. Duration is the duration parameter for this event (ie duration as defined within reportConfigNR for this event).

D. Mt is expressed in ms .

E. Thresh1 is expressed in the same unit as Mt.

F. Duration is expressed in the same unit as Mt.

E. In addition to the event determination conditions described above, the terminal 200 can support various events that can be supported by standards and terminals, such as event A based on signal strength measurement, event B based on inter-Rat measurement, or event I based on interference measurement, and various events. Events can also be triggered by additionally determining events. Of course, the base station can set the conditions for these events.

4. The terminal 200 determines the location conditions below to determine any event, such as transmission of a measurement report, termination or removal of a terrestrial network Secondary Cell (SCell) (SCell Addition), or random access to the terrestrial network. You can trigger events such as performing access). (Entering condition for this event)

A. The terminal 200 may trigger an event by determining that it is included in a certain non-terrestrial network (NTN) cell j as follows.

i. The terminal can trigger an event by comparing the distance threshold of each cell and the distance between the terminal and the reference location of each cell.

One.

B. The terminal 200 may trigger an event by determining that it is not included in the service area of terrestrial network (TN) cell i belonging to the SCell as follows.

i. The terminal can trigger an event by comparing the distance threshold of each cell belonging to the SCell with the distance between the terminal and the reference location of each cell.

를 만족하는 SCell i를 찾아 모든 i에 대해 이벤트 트리거 One.

Find SCell i that satisfies and trigger an event for all i

를 만족하는 SCell i를 찾고, i 가 한 개 이상일 경우 그 중에서 아래의 조건을 추가 판단한다. 2.

Find SCell i that satisfies, and if there is more than one i, the following conditions are additionally judged among them.

가 큰 i를 선택하여 이벤트 트리거 A. The most non-SCell i cells

Trigger an event by selecting a large i

B. Trigger an event by selecting i with the worst received signal strength performance (large RSRP, RSRQ, RSSI, CQI, SINR, SNR size) among i cells other than SCell

) 그리고 각 셀의 서비스 영역 꼭지점 기준 위치 리스트를 통해 도출한 각 셀의 절대 영역 (

) 을 비교하여 이벤트를 트리거 할 수 있다. 여기서 각 셀의 절대 영역 (

) 은 각 셀의 서비스 영역 꼭지점 기준 위치들을 꼭지점으로 하는 직선들로 인하여 그려지는 다각형이다. ii. The terminal determines the distance threshold of each cell, the distance between the terminal and the reference location of each cell, and the absolute location of the terminal (

) And the absolute area of each cell derived through the list of service area vertex reference positions of each cell (

) You can trigger an event by comparing . Here, the absolute area of each cell (

) is a polygon drawn with straight lines whose vertices are the reference positions of the service area vertices of each cell.

를 만족하는 SCell i를 찾아 모든 i에 대해 이벤트 트리거 One.

Find SCell i that satisfies and trigger an event for all i

를 만족하는 SCell i를 찾고, i 가 한 개 이상일 경우 그 중에서 아래의 조건을 추가 판단한다. 2.

Find SCell i that satisfies, and if there is more than one i, the following conditions are additionally judged among them.

가 큰 i를 선택하여 이벤트 트리거 A. The most non-SCell i cells

Trigger an event by selecting a large i

B. Trigger an event by selecting i with the worst received signal strength performance (large RSRP, RSRQ, RSSI, CQI, SINR, SNR size) among i cells other than SCell

C. The terminal 200 additionally simultaneously considers event trigger conditions according to any of the signal strength measurements below, for example, when the base station sets any one or more of the above location-based conditions and the signal strength measurement conditions below. If all of these are satisfied, an event can be triggered.

i. A1: When the received signal strength of the non-terrestrial network cell being served is above a certain threshold set by the base station.

One. Ms - Hys > Thresh

A. Ms is the measurement result of the serving cell, not taking into account any offsets.

B. Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

C. Thresh is the threshold parameter for this event (ie a2-Threshold as defined within reportConfigNR for this event).

D. Ms is expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

E. Hys is expressed in dB.

F. Thresh is expressed in the same unit as Ms.

ii. A2': When the received signal strength of any terrestrial network (TN) cell is below a certain threshold set by the base station.

(Ms(i) + Hys < Thresh) One.

(Ms(i) + Hys < Thresh)

A. Ms(j) is the measurement result of the cell j , not taking into account any offsets.

B. Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

C. Thresh is the threshold parameter for this event (ie a2-Threshold as defined within reportConfigNR for this event).

D. Ms is expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

E. Hys is expressed in dB.

F. Thresh is expressed in the same unit as Ms.

D. The terminal 200 simultaneously considers the event trigger conditions according to any of the time measurements below, for example, the base station sets any one or more of the above location-based conditions, signal strength measurement conditions, and time measurement conditions. In one case, if all of these are satisfied, an event can be triggered.

i. T1: When the terminal's time is above a certain threshold set by the base station.

One. Mt > Thresh1

A. Mt is the time measured at UE.

B. Thresh1 is the threshold parameter for this event (ie t1-Threshold as defined within reportConfigNR for this event).

C. Duration is the duration parameter for this event (ie duration as defined within reportConfigNR for this event).

D. Mt is expressed in ms .

E. Thresh1 is expressed in the same unit as Mt.

F. Duration is expressed in the same unit as Mt.

ii. T1': When the terminal's time is below a certain threshold set by the base station.

One. Mt < Thresh1

A. Mt is the time measured at UE.

B. Thresh1 is the threshold parameter for this event (ie t1-Threshold as defined within reportConfigNR for this event).

C. Duration is the duration parameter for this event (ie duration as defined within reportConfigNR for this event).

D. Mt is expressed in ms .

E. Thresh1 is expressed in the same unit as Mt.

F. Duration is expressed in the same unit as Mt.

E. In addition to the event judgment conditions described above, the terminal adds various events that the standard and terminal can support, such as event A based on signal strength measurement, event B based on inter-Rat measurement, or event I based on interference measurement, and various other events. You can also trigger an event by judging this. Of course, the base station can set the conditions for these events.

FIG. 3 is a diagram illustrating an environment in which a TN network is a serving cell and an NTN network is an SCell in an environment where a terrestrial network and a non-terrestrial network coexist according to the present disclosure, and a terminal (UE) within this environment.

Among the contents of FIG. 3, the contents corresponding to FIGS. 1 and 2 refer to the contents of FIGS. 1 and 2. For example, for distance, threshold, location, content and definitions of location information, etc., refer to the content described in FIGS. 1 and 2.

Referring to FIG. 3, when the terminal has a terrestrial network (TN) as a serving cell (SPCell), it can trigger an event to add or remove a non-terrestrial network (NTN) cell as a secondary cell (SCell).

One. The terminal determines the location conditions below to determine certain events, such as transmitting a measurement report, adding a non-terrestrial network Secondary Cell (SCell), performing random access to a non-terrestrial network, etc. You can trigger events. (Entering condition for this event)

A. The terminal can trigger an event by determining that it is included in some network (TN) cell j as follows.

i. The terminal can trigger an event by comparing the distance threshold of each cell and the distance between the terminal and the reference location of each cell.

One.

B. The terminal can trigger an event by determining that it is included in the service area of a certain non-terrestrial network (NTN) cell i as follows.

i. The terminal can trigger an event by comparing the distance threshold of each cell and the distance between the terminal and the reference location of each cell.

를 만족하는 i를 찾아 해당 i 가 SCell이 아닌 경우 모든 i에 대해 이벤트 트리거 One.

Find i that satisfies and trigger an event for all i if that i is not a SCell

를 만족하는 i를 찾고, i 가 한 개 이상일 경우 그 중에서 아래의 조건을 추가 판단한다. 2.

Find i that satisfies, and if there is more than one i, the following conditions are additionally judged among them.

가 작은 i를 선택하여 이벤트 트리거 A. The most non-SCell i cells

Trigger an event by selecting the smaller i

B. Trigger an event by selecting i with the best received signal strength performance (large RSRP, RSRQ, RSSI, CQI, SINR, SNR size) among i cells other than SCell

)그리고 각 셀의 서비스 영역 꼭지점 기준 위치 리스트를 통해 도출한 각 셀의 절대 영역 (

) 을 비교하여 이벤트를 트리거 할 수 있다. 여기서 각 셀의 절대 영역 (

) 은 각 셀의 서비스 영역 꼭지점 기준 위치들을 꼭지점으로 하는 직선들로 인하여 그려지는 다각형이다. ii. The terminal determines the distance threshold of each cell, the distance between the terminal and the reference location of each cell, and the absolute location of the terminal (

)And the absolute area of each cell derived through the list of service area vertex reference positions of each cell (

) You can trigger an event by comparing . Here, the absolute area of each cell (

) is a polygon drawn with straight lines whose vertices are the reference positions of the service area vertices of each cell.

를 만족하는 i를 찾아 해당 i 가 SCell이 아닌 경우 모든 i에 대해 이벤트 트리거 One.

Find i that satisfies and trigger an event for all i if that i is not a SCell

를 만족하는 i를 찾고, i 가 한 개 이상일 경우 그 중에서 아래의 조건을 추가 판단한다. 2.

Find i that satisfies, and if there is more than one i, the following conditions are additionally judged among them.

가 작은 i를 선택하여 이벤트 트리거 A. The most non-SCell i cells

Trigger an event by selecting the smaller i

B. Trigger an event by selecting i with the best received signal strength performance (large RSRP, RSRQ, RSSI, CQI, SINR, SNR size) among i cells other than SCell

C. The terminal additionally considers the event trigger conditions according to any signal strength measurement below at the same time, for example, if the base station sets any one or more of the above location-based conditions and the signal strength measurement conditions below, all of them are satisfied. If so, you can trigger an event.

i. A2: When the received signal strength of the terrestrial network cell being served is above a certain threshold set by the base station.

One. Ms - Hys > Thresh

A. Ms is the measurement result of the serving cell, not taking into account any offsets.

B. Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

C. Thresh is the threshold parameter for this event (ie a2-Threshold as defined within reportConfigNR for this event).

D. Ms is expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

E. Hys is expressed in dB.

F. Thresh is expressed in the same unit as Ms.

ii. A1': When the received signal strength of any non-terrestrial network (NTN) cell is above a certain threshold set by the base station.

(Ms(i) - Hys > Thresh) One.

(Ms(i) - Hys > Thresh)

A. Ms(j) is the measurement result of the cell j , not taking into account any offsets.

B. Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

C. Thresh is the threshold parameter for this event (ie a2-Threshold as defined within reportConfigNR for this event).

D. Ms is expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

E. Hys is expressed in dB.

F. Thresh is expressed in the same unit as Ms.

D. The terminal additionally simultaneously considers the event trigger conditions according to any of the time measurements below, for example, if the base station sets any one or more of the above location-based conditions, signal strength measurement conditions, and time measurement conditions. If all are satisfied, an event can be triggered.

i. T1: When the terminal's time is above a certain threshold set by the base station.

One. Mt > Thresh1

A. Mt is the time measured at UE.

B. Thresh1 is the threshold parameter for this event (ie t1-Threshold as defined within reportConfigNR for this event).

C. Duration is the duration parameter for this event (ie duration as defined within reportConfigNR for this event).

D. Mt is expressed in ms .

E. Thresh1 is expressed in the same unit as Mt.

F. Duration is expressed in the same unit as Mt.

ii. T1': When the terminal's time is below a certain threshold set by the base station.

One. Mt < Thresh1

A. Mt is the time measured at UE.

B. Thresh1 is the threshold parameter for this event (ie t1-Threshold as defined within reportConfigNR for this event).

C. Duration is the duration parameter for this event (ie duration as defined within reportConfigNR for this event).

D. Mt is expressed in ms .

E. Thresh1 is expressed in the same unit as Mt.

F. Duration is expressed in the same unit as Mt.

E. In addition to the event judgment conditions described above, the terminal adds various events that the standard and terminal can support, such as event A based on signal strength measurement, event B based on inter-Rat measurement, or event I based on interference measurement, and various other events. You can also trigger an event by judging this. Of course, the base station can set the conditions for these events.

2. The terminal determines the location conditions below to perform certain events, such as transmitting a measurement report, terminating or removing a non-terrestrial network Secondary Cell (SCell) (SCell Addition), and performing random access to the terrestrial network. You can trigger events such as: (Entering condition for this event)

A. The terminal can trigger an event by determining that it is included in a terrestrial network (TN) cell j as follows.

i. The terminal can trigger an event by comparing the distance threshold of each cell and the distance between the terminal and the reference location of each cell.

One.

B. The terminal can trigger an event by determining that it is not included in the service area of non-terrestrial network (NTN) cell i that belonged to the SCell as follows.

i. The terminal can trigger an event by comparing the distance threshold of each cell belonging to the SCell with the distance between the terminal and the reference location of each cell.

를 만족하는 SCell i를 찾아 모든 i에 대해 이벤트 트리거 One.

Find SCell i that satisfies and trigger an event for all i

를 만족하는 SCell i를 찾고, i 가 한 개 이상일 경우 그 중에서 아래의 조건을 추가 판단한다. 2.

Find SCell i that satisfies, and if there is more than one i, the following conditions are additionally judged among them.

가 큰 i를 선택하여 이벤트 트리거 A. The most non-SCell i cells

Trigger an event by selecting a large i

B. Trigger an event by selecting i with the worst received signal strength performance (large RSRP, RSRQ, RSSI, CQI, SINR, SNR size) among i cells other than SCell

)그리고 각 셀의 서비스 영역 꼭지점 기준 위치 리스트를 통해 도출한 각 셀의 절대 영역 (

) 을 비교하여 이벤트를 트리거 할 수 있다. 여기서 각 셀의 절대 영역 (

) 은 각 셀의 서비스 영역 꼭지점 기준 위치들을 꼭지점으로 하는 직선들로 인하여 그려지는 다각형이다. ii. The terminal determines the distance threshold of each cell, the distance between the terminal and the reference location of each cell, and the absolute location of the terminal (

)And the absolute area of each cell derived through the list of service area vertex reference positions of each cell (

) You can trigger an event by comparing . Here, the absolute area of each cell (

) is a polygon drawn with straight lines whose vertices are the reference positions of the service area vertices of each cell.

를 만족하는 SCell i를 찾아 모든 i에 대해 이벤트 트리거 One.

Find SCell i that satisfies and trigger an event for all i

를 만족하는 SCell i를 찾고, i 가 한 개 이상일 경우 그 중에서 아래의 조건을 추가 판단한다. 2.

Find SCell i that satisfies, and if there is more than one i, the following conditions are additionally judged among them.

가 큰 i를 선택하여 이벤트 트리거 A. The most non-SCell i cells

Trigger an event by selecting a large i

B. Trigger an event by selecting i with the worst received signal strength performance (large RSRP, RSRQ, RSSI, CQI, SINR, SNR size) among i cells other than SCell

C. The terminal additionally considers the event trigger conditions according to any signal strength measurement below at the same time, for example, if the base station sets any one or more of the above location-based conditions and the signal strength measurement conditions below, all of them are satisfied. If so, you can trigger an event.

i. A1: When the received signal strength of the serving terrestrial network cell is above a certain threshold set by the base station.

One. Ms - Hys > Thresh

A. Ms is the measurement result of the serving cell, not taking into account any offsets.

B. Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

C. Thresh is the threshold parameter for this event (ie a2-Threshold as defined within reportConfigNR for this event).

D. Ms is expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

E. Hys is expressed in dB.

F. Thresh is expressed in the same unit as Ms.

ii. A2': When the received signal strength of any non-terrestrial network (NTN) cell is below a certain threshold set by the base station.

(Ms(i) + Hys < Thresh) One.

(Ms(i) + Hys < Thresh)

A. Ms(j) is the measurement result of the cell j , not taking into account any offsets.

B. Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

C. Thresh is the threshold parameter for this event (ie a2-Threshold as defined within reportConfigNR for this event).

D. Ms is expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

E. Hys is expressed in dB.

F. Thresh is expressed in the same unit as Ms.

D. The terminal additionally simultaneously considers the event trigger conditions according to any of the time measurements below, for example, if the base station sets any one or more of the above location-based conditions, signal strength measurement conditions, and time measurement conditions. If all are satisfied, an event can be triggered.

i. T1: When the terminal's time is above a certain threshold set by the base station.

One. Mt > Thresh1

A. Mt is the time measured at UE.

B. Thresh1 is the threshold parameter for this event (ie t1-Threshold as defined within reportConfigNR for this event).

C. Duration is the duration parameter for this event (ie duration as defined within reportConfigNR for this event).

D. Mt is expressed in ms .

E. Thresh1 is expressed in the same unit as Mt.

F. Duration is expressed in the same unit as Mt.

ii. T1': When the terminal's time is below a certain threshold set by the base station.

One. Mt < Thresh1

A. Mt is the time measured at UE.

B. Thresh1 is the threshold parameter for this event (ie t1-Threshold as defined within reportConfigNR for this event).

C. Duration is the duration parameter for this event (ie duration as defined within reportConfigNR for this event).

D. Mt is expressed in ms .

E. Thresh1 is expressed in the same unit as Mt.

F. Duration is expressed in the same unit as Mt.

E. In addition to the event judgment conditions described above, the terminal adds various events that the standard and terminal can support, such as event A based on signal strength measurement, event B based on inter-Rat measurement, or event I based on interference measurement, and various other events. You can also trigger an event by judging this. Of course, the base station can set the conditions for these events.

Examples of various events that the terminal can support in addition to the above conditions are as follows:

5.5.4.2 Event A1 (Serving becomes better than threshold)

The UE shall:

1> consider the entering condition for this event to be satisfied when condition A1-1, as specified below, is fulfilled;

1> consider the leaving condition for this event to be satisfied when condition A1-2, as specified below, is fulfilled;

1> for this measurement, consider the NR serving cell corresponding to the associated measObjectNR associated with this event.

Inequality A1-1 (Entering condition)

Ms - Hys > Thresh

Inequality A1-2 (Leaving condition)

Ms + Hys < Thresh

The variables in the formula are defined as follows:

Ms is the measurement result of the serving cell, not taking into account any offsets.

Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

Thresh is the threshold parameter for this event (ie a1-Threshold as defined within reportConfigNR for this event).

Ms is expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

Hys is expressed in dB.

Thresh is expressed in the same unit as Ms .

5.5.4.3 Event A2 (Serving becomes worse than threshold)

The UE shall:

1> consider the entering condition for this event to be satisfied when condition A2-1, as specified below, is fulfilled;

1> consider the leaving condition for this event to be satisfied when condition A2-2, as specified below, is fulfilled;

1> for this measurement, consider the serving cell indicated by the measObjectNR associated to this event.

Inequality A2-1 (Entering condition)

Ms + Hys < Thresh

Inequality A2-2 (Leaving condition)

Ms - Hys > Thresh

The variables in the formula are defined as follows:

Ms is the measurement result of the serving cell, not taking into account any offsets.

Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

Thresh is the threshold parameter for this event (ie a2-Threshold as defined within reportConfigNR for this event).

Ms is expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

Hys is expressed in dB.

Thresh is expressed in the same unit as Ms .

5.5.4.4 Event A3 (Neighbor becomes offset better than SpCell)

The UE shall:

1> consider the entering condition for this event to be satisfied when condition A3-1, as specified below, is fulfilled;

1> consider the leaving condition for this event to be satisfied when condition A3-2, as specified below, is fulfilled;

1> use the SpCell for Mp , Ofp and Ocp .

NOTE 1: The cell(s) that triggers the event has reference signals indicated in the measObjectNR associated to this event which may be different from the NR SpCell measObjectNR .

Inequality A3-1 (Entering condition)

Mn + Ofn + Ocn - Hys > Mp + Ofp + Ocp + Off

Inequality A3-2 (Leaving condition)

Mn + Ofn + Ocn + Hys < Mp + Ofp + Ocp + Off

The variables in the formula are defined as follows:

Mn is the measurement result of the neighboring cell, not taking into account any offsets.

Ofn is the measurement object specific offset of the reference signal of the neighbor cell (ie offsetMO as defined within measObjectNR corresponding to the neighbor cell).

Ocn is the cell specific offset of the neighbor cell (ie cellIndividualOffset as defined within measObjectNR corresponding to the frequency of the neighbor cell), and set to zero if not configured for the neighbor cell.

Mp is the measurement result of the SpCell, not taking into account any offsets.

Ofp is the measurement object specific offset of the SpCell (ie offsetMO as defined within measObjectNR corresponding to the SpCell).

Ocp is the cell specific offset of the SpCell (ie cellIndividualOffset as defined within measObjectNR corresponding to the SpCell), and is set to zero if not configured for the SpCell.

Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

Off is the offset parameter for this event (ie a3-Offset as defined within reportConfigNR for this event).

Mn, Mp are expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

Ofn , Ocn , Ofp , Ocp , Hys , Off are expressed in dB.

NOTE 2: The definition of Event A3 also applies to CondEvent A3.

5.5.4.5 Event A4 (Neighbor becomes better than threshold)

The UE shall:

1> consider the entering condition for this event to be satisfied when condition A4-1, as specified below, is fulfilled;

1> consider the leaving condition for this event to be satisfied when condition A4-2, as specified below, is fulfilled.

Inequality A4-1 (Entering condition)

Mn + Ofn + Ocn - Hys > Thresh

Inequality A4-2 (Leaving condition)

Mn + Ofn + Ocn + Hys < Thresh

The variables in the formula are defined as follows:

Mn is the measurement result of the neighboring cell, not taking into account any offsets.

Ofn is the measurement object specific offset of the neighbor cell (ie offsetMO as defined within measObjectNR corresponding to the neighbor cell).

Ocn is the measurement object specific offset of the neighbor cell (ie cellIndividualOffset as defined within measObjectNR corresponding to the neighbor cell), and set to zero if not configured for the neighbor cell.

Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

Thresh is the threshold parameter for this event (ie a4-Threshold as defined within reportConfigNR for this event).

Mn is expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

Ofn, Ocn, Hys are expressed in dB.

Thresh is expressed in the same unit as Mn .

NOTE: The definition of Event A4 also applies to CondEvent A4.

5.5.4.6 Event A5 (SpCell becomes worse than threshold1 and neighbor becomes better than threshold2)

The UE shall:

1> consider the entering condition for this event to be satisfied when both condition A5-1 and condition A5-2, as specified below, are fulfilled;

1> consider the leaving condition for this event to be satisfied when condition A5-3 or condition A5-4, i.e. at least one of the two, as specified below, is fulfilled;

1> use the SpCell for Mp .

NOTE 1: The parameters of the reference signal(s) of the cell(s) that triggers the event are indicated in the measObjectNR associated to the event which may be different from the measObjectNR of the NR SpCell.

Inequality A5-1 (Entering condition 1)

Mp + Hys < Thresh1

Inequality A5-2 (Entering condition 2)

Mn + Ofn + Ocn - Hys > Thresh2

Inequality A5-3 (Leaving condition 1)

Mp - Hys > Thresh1

Inequality A5-4 (Leaving condition 2)

Mn + Ofn + Ocn + Hys < Thresh2

The variables in the formula are defined as follows:

Mp is the measurement result of the NR SpCell, not taking into account any offsets.

Mn is the measurement result of the neighboring cell, not taking into account any offsets.

Ofn is the measurement object specific offset of the neighbor cell (ie offsetMO as defined within measObjectNR corresponding to the neighbor cell).

Ocn is the cell specific offset of the neighbor cell (ie cellIndividualOffset as defined within measObjectNR corresponding to the neighbor cell), and set to zero if not configured for the neighbor cell.

Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

Thresh1 is the threshold parameter for this event (ie a5-Threshold1 as defined within reportConfigNR for this event).

Thresh2 is the threshold parameter for this event (ie a5-Threshold2 as defined within reportConfigNR for this event).

Mn, Mp are expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

Ofn, Ocn, Hys are expressed in dB.

Thresh1 is expressed in the same unit as Mp .

Thresh2 is expressed in the same unit as Mn .

NOTE 2: The definition of Event A5 also applies to CondEvent A5.

5.5.4.7 Event A6 (Neighbor becomes offset better than SCell)

The UE shall:

1> consider the entering condition for this event to be satisfied when condition A6-1, as specified below, is fulfilled;

1> consider the leaving condition for this event to be satisfied when condition A6-2, as specified below, is fulfilled;

1> for this measurement, consider the (secondary) cell corresponding to the measObjectNR associated to this event to be the serving cell.

NOTE: The reference signal(s) of the neighbor(s) and the reference signal(s) of the SCell are both indicated in the associated measObjectNR .

Inequality A6-1 (Entering condition)

Mn + Ocn - Hys > Ms + Ocs + Off

Inequality A6-2 (Leaving condition)

Mn + Ocn + Hys < Ms + Ocs + Off

The variables in the formula are defined as follows:

Mn is the measurement result of the neighboring cell, not taking into account any offsets.

Ocn is the cell specific offset of the neighbor cell (ie cellIndividualOffset as defined within the associated measObjectNR ), and set to zero if not configured for the neighbor cell.

Ms is the measurement result of the serving cell, not taking into account any offsets.

Ocs is the cell specific offset of the serving cell (ie cellIndividualOffset as defined within the associated measObjectNR ), and is set to zero if not configured for the serving cell.

Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

Off is the offset parameter for this event (ie a6-Offset as defined within reportConfigNR for this event).

Mn, Ms are expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

Ocn, Ocs, Hys, Off are expressed in dB.

5.5.4.8 Event B1 (Inter RAT neighbor becomes better than threshold)

The UE shall:

1> consider the entering condition for this event to be satisfied when condition B1-1, as specified below, is fulfilled;

1> consider the leaving condition for this event to be satisfied when condition B1-2, as specified below, is fulfilled.

Inequality B1-1 (Entering condition)

Mn + Ofn + Ocn - Hys > Thresh

Inequality B1-2 (Leaving condition)

Mn + Ofn + Ocn + Hys < Thresh

The variables in the formula are defined as follows:

Mn is the measurement result of the inter-RAT neighbor cell, not taking into account any offsets.

Ofn is the measurement object specific offset of the frequency of the inter-RAT neighbor cell (ie eutra-Q-OffsetRange as defined within the measObjectEUTRA corresponding to the frequency of the neighbor inter-RAT cell, utra-FDD-Q-OffsetRange as defined within the measObjectUTRA-FDD corresponding to the frequency of the neighbor inter-RAT cell).

Ocn is the cell specific offset of the inter-RAT neighbor cell (ie cellIndividualOffset as defined within the measObjectEUTRA corresponding to the neighbor inter-RAT cell), and set to zero if not configured for the neighbor cell.

Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigInterRAT for this event).

Thresh is the threshold parameter for this event (ie b1-ThresholdEUTRA as defined within reportConfigInterRAT for this event, b1-ThresholdUTRA-FDD as defined for UTRA-FDD within reportConfigInterRAT for this event).

Mn is expressed in dBm or in dB, depending on the measurement quantity of the inter-RAT neighbor cell.

Ofn, Ocn, Hys are expressed in dB.

Thresh is expressed in the same unit as Mn .

5.5.4.9 Event B2 (PCell becomes worse than threshold1 and inter RAT neighbor becomes better than threshold2)

The UE shall:

1> consider the entering condition for this event to be satisfied when both condition B2-1 and condition B2-2, as specified below, are fulfilled;

1> consider the leaving condition for this event to be satisfied when condition B2-3 or condition B2-4, i.e. at least one of the two, as specified below, is fulfilled;

Inequality B2-1 (Entering condition 1)

Mp + Hys < Thresh1

Inequality B2-2 (Entering condition 2)

Mn + Ofn + Ocn - Hys > Thresh2

Inequality B2-3 (Leaving condition 1)

Mp - Hys > Thresh1

Inequality B2-4 (Leaving condition 2)

Mn + Ofn + Ocn + Hys < Thresh2

The variables in the formula are defined as follows:

Mp is the measurement result of the PCell, not taking into account any offsets.

Mn is the measurement result of the inter-RAT neighbor cell, not taking into account any offsets.

Ofn is the measurement object specific offset of the frequency of the inter-RAT neighbor cell (ie eutra-Q-OffsetRange as defined within the measObjectEUTRA corresponding to the frequency of the inter-RAT neighbor cell, utra-FDD-Q-OffsetRange as defined within the measObjectUTRA-FDD corresponding to the frequency of the neighbor inter-RAT cell).

Ocn is the cell specific offset of the inter-RAT neighbor cell (ie cellIndividualOffset as defined within the measObjectEUTRA corresponding to the neighbor inter-RAT cell), and set to zero if not configured for the neighbor cell.

Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigInterRAT for this event).

Thresh1 is the threshold parameter for this event (ie b2 -Threshold1 as defined within reportConfigInterRAT for this event).

Thresh2 is the threshold parameter for this event (ie b2-Threshold2EUTRA as defined within reportConfigInterRAT for this event, b2-Threshold2UTRA-FDD as defined for UTRA-FDD within reportConfigInterRAT for this event).

Mp is expressed in dBm in case of RSRP, or in dB in case of RSRQ and SINR.

Mn is expressed in dBm or dB, depending on the measurement quantity of the inter-RAT neighbor cell.

Ofn, Ocn, Hys are expressed in dB.

Thresh1 is expressed in the same unit as Mp .

Thresh2 is expressed in the same unit as Mn .

5.5.4.10 Event I1 (Interference becomes higher than threshold)

The UE shall:

1> consider the entering condition for this event to be satisfied when condition I1-1, as specified below, is fulfilled;

1> consider the leaving condition for this event to be satisfied when condition I1-2, as specified below, is fulfilled.

Inequality I1-1 (Entering condition)

Mi - Hys > Thresh

Inequality I1-2 (Leaving condition)

Mi+ Hys < Thresh

The variables in the formula are defined as follows:

Mi is the measurement result of the interference, not taking into account any offsets.

Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

Thresh is the threshold parameter for this event (ie i1-Threshold as defined within reportConfigNR for this event).

Mi, Thresh are expressed in dBm.

Hys is expressed in dB.

5.5.4.11 Event C1 (The NR sidelink channel busy ratio is above a threshold)

The UE shall:

1> consider the entering condition for this event to be satisfied when condition C1-1, as specified below, is fulfilled;

1> consider the leaving condition for this event to be satisfied when condition C1-2, as specified below, is fulfilled;

Inequality C1-1 (Entering condition)

Ms - Hys > Thresh

Inequality C1-2 (Leaving condition)

Ms + Hys < Thresh

The variables in the formula are defined as follows:

Ms is the measurement result of channel busy ratio of the transmission resource pool, not taking into account any offsets.

Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR-SL for this event).

Thresh is the threshold parameter for this event (ie c1-Threshold as defined within reportConfigNR-SL for this event).

Ms is expressed in decimal from 0 to 1 in steps of 0.01.

Hys is expressed is in the same unit as Ms.

Thresh is expressed in the same unit as Ms .

5.5.4.12 Event C2 (The NR sidelink channel busy ratio is below a threshold)

The UE shall:

1> consider the entering condition for this event to be satisfied when condition C2-1, as specified below, is fulfilled;

1> consider the leaving condition for this event to be satisfied when condition C2-2, as specified below, is fulfilled;

Inequality C2-1 (Entering condition)

Ms + Hys < Thresh

Inequality C2-2 (Leaving condition)

Ms - Hys > Thresh

The variables in the formula are defined as follows:

Ms is the measurement result of channel busy ratio of the transmission resource pool, not taking into account any offsets.

Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR-SL for this event).

Thresh is the threshold parameter for this event (ie c2-Threshold as defined within reportConfigNR-SL for this event).

Ms is expressed in decimal from 0 to 1 in steps of 0.01.

Hys is expressed is in the same unit as Ms.

Thresh is expressed in the same unit as Ms .

5.5.4.13 Void

5.5.4.14 Void

5.5.4.15 Event D1

The UE shall:

1> consider the entering condition for this event to be satisfied when both condition D1-1 and condition D1-2, as specified below, are fulfilled;

1> consider the leaving condition for this event to be satisfied when condition D1-3 or condition D1-4, i.e. at least one of the two, as specified below, are fulfilled;

Inequality D1-1 (Entering condition 1)

Ml1 - Hys > Thresh1

Inequality D1-2 (Entering condition 2)

Ml2 + Hys < Thresh2

Inequality D1-3 (Leaving condition 1)

Ml1 + Hys < Thresh1

Inequality D1-4 (Leaving condition 2)

Ml2 - Hys > Thresh2

The variables in the formula are defined as follows:

Ml1 is the UE location, represented by the distance between UE and a reference location parameter for this event (ie referenceLocation1 as defined within reportConfigNR for this event), not taking into account any offsets.

Ml2 is the UE location, represented by the distance between UE and a reference location parameter for this event (ie referenceLocation2 as defined within reportConfigNR for this event), not taking into account any offsets.

Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigNR for this event).

Thresh1 is the threshold for this event defined as a distance, configured with parameter distanceThreshFromReference1, from a reference location configured with parameter referenceLocation1 within reportConfigNR for this event.

Thresh2 is the threshold for this event defined as a distance, configured with parameter distanceThreshFromReference2, from a reference location configured with parameter referenceLocation2 within reportConfigNR for this event.

Ml1 is expressed in meters.

Ml2 is expressed in the same unit as Ml1 .

Hys is expressed in the same unit as Ml1.

Thresh1 is expressed in the same unit as Ml1 .

Thresh2 is expressed in the same unit as Ml1 .

NOTE: The definition of Event D1 also applies to CondEvent D1.

5.5.4.16 CondEvent T1

The UE shall:

1> consider the entering condition for this event to be satisfied when condition T1-1, as specified below, is fulfilled;

1> consider the leaving condition for this event to be satisfied when condition T1-2, as specified below, is fulfilled;

Inequality T1-1 (Entering condition)

Mt > Thresh1

Inequality T1-2 (Leaving condition)

Mt > Thresh1 > Duration

The variables in the formula are defined as follows:

Mt is the time measured at UE.

Thresh1 is the threshold parameter for this event (ie t1-Threshold as defined within reportConfigNR for this event).

Duration is the duration parameter for this event (ie duration as defined within reportConfigNR for this event).

Mt is expressed in ms .

Thresh1 is expressed in the same unit as Mt.

Duration is expressed in the same unit as Mt.

5.5.4.17 Event X1 (Serving L2 U2N Relay UE becomes worse than threshold1 and NR Cell becomes better than threshold2)

The UE shall:

1> consider the entering condition for this event to be satisfied when both condition X1-1 and condition X1-2, as specified below, are fulfilled;

1> consider the leaving condition for this event to be satisfied when condition X1-3 or condition X1-4, i.e. at least one of the two, as specified below, is fulfilled;

Inequality X1-1 (Entering condition 1)

Mr + Hys < Thresh1

Inequality X1-2 (Entering condition 2)

Mn + Ofn + Ocn - Hys > Thresh2

Inequality X1-3 (Leaving condition 1)

Mr - Hys > Thresh1

Inequality X1-4 (Leaving condition 2)

Mn + Ofn + Ocn + Hys < Thresh2

The variables in the formula are defined as follows:

Mr is the measurement result of the serving L2 U2N Relay UE, not taking into account any offsets.

Mn is the measurement result of the NR cell, not taking into account any offsets.

Ofn is the measurement object specific offset of the reference signal of the NR cell (ie offsetMO as defined within measObjectNR corresponding to the NR cell).

Ocn is the cell specific offset of the NR cell (ie cellIndividualOffset as defined within measObjectNR corresponding to the frequency of the NR cell), and set to zero if not configured for the cell.

Hys is the hysteresis parameter for this event.

Thresh1 is the threshold parameter for this event (ie x1-Threshold1-Relay as defined within reportConfigNR for this event).

Thresh2 is the threshold parameter for this event (ie x1-Threshold2 as defined within reportConfigNR for this event).

Mr is expressed in dBm.

Mn is expressed in dBm in case of RSRP, or in dB in case of RSRQ and RS-SINR.

Ofn, Ocn, Hys are expressed in dB.

Thresh1 is expressed in the same unit as Mr.

Thresh2 is expressed in the same unit as Mn .

5.5.4.18 Event X2 (Serving L2 U2N Relay UE becomes worse than threshold)

The UE shall:

1> consider the entering condition for this event to be satisfied when condition X2-1, as specified below, is fulfilled;

1> consider the leaving condition for this event to be satisfied when condition X2-2, as specified below, is fulfilled;

Inequality X2-1 (Entering condition)

Mr + Hys < Thresh

Inequality X2-2 (Leaving condition)

Mr - Hys > Thresh

The variables in the formula are defined as follows:

Mr is the measurement result of the serving L2 U2N Relay UE, not taking into account any offsets.

Hys is the hysteresis parameter for this event.

Thresh is the threshold parameter for this event (ie x2-Threshold-Relay as defined within reportConfigNR for this event).

Mr is expressed in dBm.

Hys are expressed in dB.

Thresh is expressed in the same unit as Mr.

5.5.4.19 Event Y1 (PCell becomes worse than threshold1 and candidate L2 U2N Relay UE becomes better than threshold2)

The UE shall:

1> consider the entering condition for this event to be satisfied when both condition Y1-1 and condition Y1-2, as specified below, are fulfilled;

1> consider the leaving condition for this event to be satisfied when condition Y1-3 or condition Y1-4, i.e. at least one of the two, as specified below, is fulfilled;

Inequality Y1-1 (Entering condition 1)

Mp + Hys < Thresh1

Inequality Y1-2 (Entering condition 2)

Mr - Hys > Thresh2

Inequality Y1-3 (Leaving condition 1)

Mp-Hys > Thresh1

Inequality Y1-4 (Leaving condition 2)

Mr + Hys < Thresh2

The variables in the formula are defined as follows:

Mp is the measurement result of the PCell, not taking into account any offsets.

Mr is the measurement result of the candidate L2 U2N Relay UE, not taking into account any offsets.

Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigInterRAT for this event).

Thresh1 is the threshold parameter for this event (ie y1-Threshold1 as defined within reportConfigInterRAT for this event).

Thresh2 is the threshold parameter for this event (ie y1-Threshold2-Relay as defined within reportConfigInterRAT for this event).

Mp is expressed in dBm in case of RSRP, or in dB in case of RSRQ and SINR.

Mr is expressed in dBm or dB, depending on the measurement quantity of candidate L2 U2N Relay UE.

Hys are expressed in dB.

Thresh1 is expressed in the same unit as Mp .

Thresh2 is expressed in the same unit as Mr .

5.5.4.20 Event Y2 (Candidate L2 U2N Relay UE becomes better than threshold)

The UE shall:

1> consider the entering condition for this event to be satisfied when condition Y2-1, as specified below, is fulfilled;

1> consider the leaving condition for this event to be satisfied when condition Y2-2, as specified below, is fulfilled;

Inequality Y2-1 (Entering condition)

Mr - Hys > Thresh2

Inequality Y2-2 (Leaving condition)

Mr + Hys < Thresh2

The variables in the formula are defined as follows:

Mr is the measurement result of the candidate L2 U2N Relay UE, not taking into account any offsets.

Hys is the hysteresis parameter for this event (ie hysteresis as defined within reportConfigInterRAT for this event).

Thresh is the threshold parameter for this event (ie y2-Threshold-Relay as defined within reportConfigInterRAT for this event).

Mr is expressed in dBm or dB, depending on the measurement quantity of candidate L2 U2N Relay UE.

Hys are expressed in dB.

Thresh is expressed in the same unit as Mr.

Figure 4 is a diagram showing the structure of a base station according to an embodiment of the present disclosure.

Referring to FIG. 4, the base station may include a transceiver 410, a control unit 420, and a storage unit 430. The transceiver unit 410, control unit 420, and storage unit 430 may operate according to the communication method of the base station described above. Additionally, network devices may also correspond to the structure of the base station. However, the components of the base station are not limited to the above examples. For example, a base station may include more or fewer components than those described above. For example, the base station may include a transceiver 410 and a control unit 420. In addition, the transceiver 410, control unit 420, and storage unit 430 may be implemented in the form of a single chip.

The transceiving unit 410 is a general term for the receiving unit of the base station and the transmitting unit of the base station, and can transmit and receive signals with a terminal, another base station, or other network devices. At this time, the transmitted and received signal may include control information and data. For example, the transceiver 410 may transmit system information to the terminal and may transmit a synchronization signal or a reference signal. To this end, the transceiver 410 may be composed of an RF transmitter that up-converts and amplifies the frequency of the transmitted signal, and an RF receiver that amplifies the received signal with low noise and down-converts the frequency. However, this is only an example of the transceiver 410, and the components of the transceiver 410 are not limited to the RF transmitter and RF receiver. The transceiver 410 may include a wired or wireless transceiver and may include various components for transmitting and receiving signals. Additionally, the transceiver 410 may receive a signal through a communication channel (eg, a wireless channel) and output it to the control unit 420, and transmit the signal output from the control unit 420 through the communication channel. Additionally, the transceiver 410 may receive a communication signal, output it to a processor, and transmit the signal output from the processor to a terminal, another base station, or another entity through a wired or wireless network.

The storage unit 430 can store programs and data necessary for the operation of the base station. Additionally, the storage unit 430 may store control information or data included in signals obtained from the base station. The storage unit 430 may be composed of a storage medium such as ROM, RAM, hard disk, CD-ROM, and DVD, or a combination of storage media. Additionally, the storage unit 430 may store at least one of information transmitted and received through the transmitting and receiving unit 410 and information generated through the control unit.

In the present disclosure, the control unit may be defined as a circuit or application-specific integrated circuit or at least one processor. The processor may include a CP (communication processor) that performs control for communication and an AP (application processor) that controls upper layers such as application programs. The control unit 420 can control the overall operation of the base station according to the embodiment proposed by the present invention. For example, the control unit 420 may control signal flow between each block to perform operations according to the flowchart described above.

Figure 5 is a diagram showing the structure of a terminal according to an embodiment of the present invention.

Referring to FIG. 5, the terminal may include a transceiver 510, a control unit 520, and a storage unit 530. The transceiver unit 510, control unit 520, and storage unit 530 may operate according to the communication method of the terminal described above. However, the components of the terminal are not limited to the examples described above. For example, the terminal may include more or fewer components than the aforementioned components. For example, the terminal may include a transceiver 510 and a control unit 520. In addition, the transceiver 510, control unit 520, and storage unit 530 may be implemented in the form of a single chip.

The transmitting/receiving unit 510 is a general term for the terminal's receiving unit and the terminal's transmitting unit, and can transmit and receive signals with a base station, other terminals, or network entities. Signals transmitted and received from the base station may include control information and data. For example, the transceiver 510 may receive system information from a base station and may receive a synchronization signal or a reference signal. To this end, the transceiver 510 may be composed of an RF transmitter that up-converts and amplifies the frequency of the transmitted signal, and an RF receiver that amplifies the received signal with low noise and down-converts the frequency. However, this is only an example of the transceiver 510, and the components of the transceiver 510 are not limited to the RF transmitter and RF receiver. Additionally, the transceiver 510 may include a wired or wireless transceiver and may include various components for transmitting and receiving signals. Additionally, the transceiver 510 may receive a signal through a wireless channel and output it to the control unit 520, and transmit the signal output from the control unit 520 through a wireless channel. Additionally, the transceiver 510 may receive a communication signal, output it to a processor, and transmit the signal output from the processor to a network entity through a wired or wireless network.

The storage unit 530 can store programs and data necessary for operation of the terminal. Additionally, the memory may store control information or data included in signals obtained from the terminal. The storage unit may be composed of a storage medium such as ROM, RAM, hard disk, CD-ROM, and DVD, or a combination of storage media.

In the present invention, the control unit 520 may be defined as a circuit or application-specific integrated circuit or at least one processor. The processor may include a communication processor (CP) that performs control for communication and an application processor (AP) that controls upper layers such as application programs. The control unit 520 can control the overall operation of the terminal according to the embodiment proposed in this disclosure. For example, the control unit 520 may control signal flow between each block to perform operations according to the flowchart described above.

Methods according to embodiments described in the claims or specification of the present invention may be implemented in the form of hardware, software, or a combination of hardware and software.

When implemented as software, a computer-readable storage medium that stores one or more programs (software modules) may be provided. One or more programs stored in a computer-readable storage medium are configured to be executable by one or more processors in an electronic device (configured for execution). One or more programs include instructions that cause the electronic device to execute methods according to embodiments described in the claims or specification of the present invention.

These programs (software modules, software) include random access memory, non-volatile memory including flash memory, read only memory (ROM), and electrically erasable programmable ROM. (EEPROM: Electrically Erasable Programmable Read Only Memory), magnetic disc storage device, Compact Disc-ROM (CD-ROM: Compact Disc-ROM), Digital Versatile Discs (DVDs), or other types of It can be stored in an optical storage device or magnetic cassette. Alternatively, it may be stored in a memory consisting of a combination of some or all of these. Additionally, multiple configuration memories may be included.

In addition, the program may be operated through a communication network such as the Internet, an intranet, a local area network (LAN), a wide LAN (WLAN), or a storage area network (SAN), or a combination thereof. It may be stored on an attachable storage device that is accessible. This storage device can be connected to a device performing an embodiment of the present invention through an external port. Additionally, a separate storage device on a communication network may be connected to the device performing an embodiment of the present invention.

In the specific embodiments of the present invention described above, components included in the invention are expressed in singular or plural numbers depending on the specific embodiment presented. However, singular or plural expressions are selected to suit the presented situation for convenience of explanation, and the present invention is not limited to singular or plural components, and even components expressed in plural may be composed of singular or singular. Even expressed components may be composed of plural elements.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but of course, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the patent claims described later, but also by the scope of this patent claim and equivalents.

Claims (1)

In the terminal method,
establishing a communication connection with a first base station;
Obtaining location information and threshold information of adjacent Terrestiral Network (TN) and Non-Terrestrial (NTN) base stations including the first base station from the first base station; and
A method comprising the step of triggering an event or conditional handover to transmit a measurement report based on the location information and the threshold information.

Images