Wireless communication method for wireless communication with airborne user equipment

Abstract

A wireless communication method and corresponding apparatus and non-transitory computer-readable storage medium are disclosed. The wireless communication method includes transmitting user equipment (UE) subscription information from a first communication node to a second communication node, the UE subscription information being used to indicate whether the UE is enabled to use airborne UE capabilities. The wireless communication method includes receiving user equipment (UE) subscription information from a first communication node by a second communication node, the UE subscription information being used to indicate whether the UE is enabled to use airborne UE capabilities. Another method of improving functionality of a wireless communication system is disclosed in this disclosure.

Description

Technical Field

[0001] Technical Field This disclosure generally relates to wireless communication, particularly wireless communication related to aircraft services.

Background Art

[0002] Background With the advancement of wireless communication technology, the world is becoming increasingly connected. Compared with existing wireless networks, next-generation wireless communication systems can support a much wider range of functions and applications. For example, support for higher data rates, a large number of connections, ultra-low latency, and high reliability may be desired. Efficient utilization of wireless communication resources is important for supporting various communication functions. For convenience and usefulness in various situations, aircraft-based wireless communication such as unmanned aerial vehicles (UAVs) has become a growing field of development.

Summary of the Invention

Means for Solving the Problems

[0003] Summary Techniques for improving the functionality of wireless communication of an airborne UE are disclosed.

[0004] According to one embodiment, this disclosure

[0005] includes transmitting user equipment (UE) subscription information from a first communication node to a second communication node, where the UE subscription information is used to indicate whether the UE is enabled to use the airborne UE function, and provides a wireless communication method.

[0006] According to other embodiments, this disclosure

[0007] The process includes a second communication node receiving user equipment (UE) subscription information from a first communication node, the UE subscription information being used to indicate whether the UE is to be made available for use with the airborne UE function. To provide a wireless communication method.

[0008] According to other embodiments, this disclosure is,

[0009] The user equipment (UE) receives a configuration message from the wireless communication node.

[0010] UE height measurement setting, or

[0011] Request for UE flight path reporting settings, Set at least one of the UE settings,

[0012] Follow the configuration message to trigger a report to the wireless communication node. The present invention provides a wireless communication method that includes [specific details omitted].

[0013] According to other embodiments, this disclosure is,

[0014] The wireless communication node transmits a configuration message to the UE.

[0015] UE height measurement setting, or

[0016] Request for UE flight path reporting settings, Set at least one of the UE settings,

[0017] The wireless communication node receives a report from the UE, and the report is generated according to the configuration message. The present invention provides a wireless communication method that includes [specific details omitted].

[0018] According to other embodiments, this disclosure is,

[0019] For cell selection or reselection by a user equipment (UE) from a radio communication node

[0020] An indicator indicating whether a cell is inapplicable for the aerial UE to access

[0021] An indicator indicating whether a cell is inapplicable for the aerial UE to access, and the altitude of the aerial UE is within a certain range

[0022] An indicator indicating whether a frequency or a cell is inapplicable for the aerial UE for cell reselection, and the altitude of the aerial UE is within a certain range, or

[0023] Priority information for setting up the priority to be selected among a plurality of adjacent cells Receiving at least one of the information

[0024] Performing cell selection or reselection according to at least one of the information To provide a radio communication method including

[0025] According to another embodiment, this disclosure

[0026] By a radio communication node, for cell selection or reselection, to a user equipment (UE),

[0027] An indicator indicating whether a cell is inapplicable for the aerial UE to access

[0028] An indicator indicating whether a cell is inapplicable for the aerial UE to access, and the altitude of the aerial UE is within a certain range

[0029] An indicator indicating whether a frequency or a cell is inapplicable for the aerial UE for cell reselection, and the altitude of the aerial UE is within a certain range, or

[0030] Priority information to set the priority of selection between multiple adjacent cells and The present invention provides a wireless communication method that includes transmitting at least one of the following pieces of information.

[0031] According to other embodiments, this disclosure relates to a wireless communication device,

[0032] At least one memory location for storing at least one program,

[0033] One or more processors configured to communicate with at least one memory and execute at least one program to cause a wireless communication device to perform any of the methods and steps disclosed in this disclosure, The present invention provides a wireless communication device that includes [a specific component / device].

[0034] In other embodiments, this disclosure provides a non-temporary computer-readable storage medium for storing at least one program, wherein when at least one program is executed by one or more processors, the non-temporary computer-readable storage medium causes a wireless communication device to perform any of the methods and steps disclosed in this disclosure.

[0035] The above and other embodiments and their implementations are described in more detail in the drawings, specification and claims. The present invention provides, for example, the following items: (Item 1) A wireless communication method, wherein the wireless communication method is A method comprising transmitting user equipment (UE) subscription information from a first communication node to a second communication node, wherein the UE subscription information is used to indicate whether the UE is to be made available to use airborne UE functions. (Item 2) In response to receiving the above UE subscription information, the first communication node receives the following information from the second communication node: An indicator for requesting the first communication node to set a UE height measurement in the UE, UE height measurement settings generated by the second communication node mentioned above, An indicator for requesting UE height reporting from the first communication node mentioned above, An indicator showing whether a UE height measurement report has been requested to the second communication node mentioned above. An indicator to request the first communication node to set up a request for UE flight path reporting to the UE, Request for UE flight path reporting settings generated by the second communication node mentioned above, An indicator for requesting a UE flight path report held by the first communication node mentioned above, or An indicator showing whether a UE flight path report has been requested to the second communication node mentioned above. The method according to item 1, further comprising receiving at least one of the pieces of information. (Item 3) From the first communication node mentioned above to the UE, UE height measurement setting to set UE with respect to height measurement, or Request for UE flight path reporting settings The method according to item 1, further comprising transmitting one of the following. (Item 4) The above UE height measurement setting is, A reference height threshold for UE, which is a reference height threshold for triggering height measurement when a condition based on the above reference height threshold is met, or A list of reference height thresholds, where each reference height threshold is associated with at least one of the following: cell ID information, reference signal identification (RSID), or transmission receiving point (TRP) information. The method described in item 3, comprising at least one of the following. (Item 5) The above request for the UE flight path reporting settings is, The maximum number of waypoints that a UE can include in its flight path report, or An indicator showing whether a waypoint timestamp is required. The method described in item 3, comprising at least one of the following. (Item 6) The method according to item 1, further comprising transmitting at least one of the following information from the first communication node to the second communication node: the location, altitude, speed, or flight path information of the UE. (Item 7) From the first communication node mentioned above to the second communication node mentioned above, An indication that the UE's height meets the height threshold set by the second communication node, or An indicator showing the identification of a cell, RS, or TRP whose threshold, set by the second communication node mentioned above, is met. The method according to item 1, further comprising transmitting at least one of the following. (Item 8) The method according to any one of items 1 to 7, wherein the first communication node is a master node (MN) and the second communication node is a secondary node (SN). (Item 9) The method according to any one of items 1 to 7, wherein the first communication node is a centralized unit (CU) and the second communication node is a distributed unit (DU). (Item 10) The method according to any one of items 1 to 7, wherein the first communication node is the source MN, the second communication node is the target MN, and the information is transmitted via a handover request message. (Item 11) A wireless communication method, wherein the wireless communication method is A method comprising receiving user equipment (UE) subscription information from a first communication node via a second communication node, wherein the UE subscription information is used to indicate whether the UE is to be made available for use with the airborne UE functionality. (Item 12) In response to receiving the above UE subscription information, the second communication node transmits the following information from the first communication node: An indicator for requesting the first communication node to set a UE height measurement in the UE, UE height measurement settings generated by the second communication node mentioned above, An indicator for requesting UE height reporting from the first communication node mentioned above, An indicator showing whether a UE height measurement report has been requested to the second communication node mentioned above. An indicator to request the first communication node to set up a request for UE flight path reporting to the UE, Request for UE flight path reporting settings generated by the second communication node mentioned above, An indicator for requesting a UE flight path report held by the first communication node mentioned above, or An indicator showing whether a UE flight path report has been requested to the second communication node mentioned above. The method according to item 11, further comprising transmitting at least one of the pieces of information. (Item 13) The above UE height measurement setting is, A reference height threshold for UE, which is a reference height threshold for triggering height measurement when a condition based on the above reference height threshold is met, or A list of reference height thresholds, where each reference height threshold is associated with at least one of the following: cell ID information, reference signal identification (RSID), or transmission receiving point (TRP) information. The method described in item 12, comprising at least one of the following. (Item 14) The above request for the UE flight path reporting settings is, The maximum number of waypoints that a UE can include in its flight path report, or An indicator showing whether a waypoint timestamp is required. The method described in item 12, comprising at least one of the following. (Item 15) The method according to item 12, further comprising receiving at least one of the following information from the first communication node via the second communication node: the location, altitude, speed, or flight path information of the UE. (Item 16) The second communication node communicates from the first communication node, An indication that the UE's height meets the height threshold set by the second communication node, or An indicator showing the identification of a cell, RS, or TRP whose threshold, set by the second communication node mentioned above, is met. The method according to item 12, further comprising receiving at least one of the following. (Item 17) The method according to any one of items 11 to 16, wherein the first communication node is a master node (MN) and the second communication node is a secondary node (SN). (Item 18) The method according to any one of items 11 to 16, wherein the first communication node is a centralized unit (CU) and the second communication node is a distributed unit (DU). (Item 19) The method according to any one of items 11 to 16, wherein the first communication node is a source MN, the second communication node is a target MN, and the information is transmitted via a handover request message. (Item 20) The user equipment (UE) receives a configuration message from the wireless communication node. UE height measurement setting, or Request for UE flight path reporting settings, Set at least one of the above UE settings, In accordance with the above configuration message, trigger a report to the above wireless communication node. Wireless communication methods, including those mentioned above. (Item 21) The above UE height measurement setting is, Reference height threshold, Offset of reference height threshold, Hysteresis parameters used within the entry and exit conditions of event-triggered reporting conditions. A time parameter to trigger, indicating a timer during which specific criteria for the above event must be met in order to trigger the measurement report. An indicator showing whether the above UE is permitted to begin UE height measurement when the above withdrawal conditions are met. The interval or period at which the above UE periodically reports UE height measurements, or Maximum number of UE height measurement reports available for the above UE A wireless communication method as described in item 20, comprising at least one of the parameters. (Item 22) The wireless communication method described in item 21, wherein the above UE height measurement setting is associated with at least one of the following: cell ID information, reference signal identification (RSID), or transmission receiving point (TRP) information. (Item 23) The above UE height measurement setting is indicated by at least one of the measurement target information, measurement reporting settings, or RS or beam measurement settings, as described in item 20, wireless communication method. (Item 24) The wireless communication method according to item 20, further comprising transmitting a UE height measurement report to the wireless communication node in response to the height of the UE satisfying a height threshold setting configured by the wireless communication node. (Item 25) The wireless communication method according to item 24, further comprising periodically transmitting additional UE height measurement reports to the wireless communication node based on the reporting interval setting and the number of reports setting in the UE height measurement setting, after the height of the UE satisfies the height threshold setting set by the wireless communication node. (Item 26) The above UE height measurement report is, The height of the above UE, An indication that the above height of the above UE satisfies the above height threshold setting, or An indicator showing the identification of a cell, RS, or TRP that satisfies the associated height threshold set by the above height threshold setting. A wireless communication method as described in item 24, which includes at least one of the following. (Item 27) The above UE height measurement report is carried by at least one of the following: a Radio Resource Control (RRC) message, a Media Access Control Element (MACCE), or Layer 1 (L1) signaling, as described in item 24 of the wireless communication method. (Item 28) The above setting message further includes at least one of the measurement target (MO) setting or reporting setting for interference detection, as described in item 20 of the wireless communication method. (Item 29) The wireless communication method described in item 28, wherein the above MO setting includes a reference MO ID associated with a reference MO setting, and the above MO setting and the above reference MO setting are associated with the same synchronous signal block (SSB) frequency or channel status information reference signal (CSI-RS) frequency. (Item 30) The above MO settings are: Multiple parameters, each a parameter for the above-mentioned interference detection and radio resource management (RRM) measurement values, or An indicator indicating whether the UE is indicated to perform the above interference detection, or whether the above measurement target is applicable to interference detection. A wireless communication method as described in item 28, comprising at least one of the following. (Item 31) The above multiple parameters are, A threshold for integrating one or more measurement results for the synchronization signal (SS) / physical broadcast channel (PBCH) block from the Layer 1 (L1) filter. A threshold for integrating one or more measurement results for the Channel State Information Reference Signal (CSI-RS) resource block from the L1 filter. The maximum number of beamlevel measurement results (one or more) based on SS / PBCH blocks to be averaged. The maximum number of one or more beam-level measurement results based on CSI-RS resources to be averaged, or List of cells for interference detection A wireless communication method as described in item 30, comprising at least one of the following. (Item 32) Reporting settings are: Multiple parameters, each of which is a parameter for interference detection and RRM measurement, or An indicator showing whether the above UE is indicated to perform the above interference detection, or whether the above reporting settings are applicable to interference detection. A wireless communication method as described in item 28, comprising at least one of the following. (Item 33) The wireless communication method according to item 31, further comprising deriving the cell quality of one or more adjacent cells based on the above-mentioned multiple parameters for interference detection, wherein the cell quality is used to determine whether a measurement report is triggered for interference detection. (Item 34) The radio communication method according to item 20, further comprising transmitting a fault report to the radio communication node when an MCG or SCG fault is detected, wherein the fault report includes at least one of the following: location, altitude, speed, or flight path information of the UE. (Item 35) The above-mentioned MCG or SCG failure includes at least one of the following: a radio link failure, a handover failure, a PSCell addition failure, or a PSCell modification failure, as described in item 34 of the radio communication method. (Item 36) A wireless communication method, wherein the wireless communication method is The wireless communication node will send to the UE, UE height measurement setting, or Request for UE flight path reporting settings To transmit a configuration message to configure the settings of at least one of the above UEs, The above wireless communication node receives a report from the above UE, and the above report is generated according to the above configuration message. Wireless communication methods, including those mentioned above. (Item 37) The above UE height measurement setting is, Reference height threshold, Offset of reference height threshold, Hysteresis parameters used within the entry and exit conditions of event-triggered reporting conditions. A time parameter to trigger, indicating a timer during which specific criteria for the above event must be met in order to trigger the measurement report. An indicator showing whether the above UE is permitted to begin UE height measurement when the above withdrawal conditions are met. The interval or period at which the above UE periodically reports UE height measurements, or Maximum number of UE height measurement reports available for the above UE A wireless communication method as described in item 36, comprising at least one of the parameters. (Item 38) The above UE height measurement setting is associated with at least one of the following: cell ID information, reference signal identification (RSID), or transmission receiving point (TRP) information, as described in item 37 of the wireless communication method. (Item 39) The above UE height measurement setting is indicated by at least one of the measurement target information, measurement reporting settings, or RS or beam measurement settings, as described in item 36 of the wireless communication method. (Item 40) The wireless communication method according to item 36, wherein the UE height measurement report is transmitted in response to the UE height satisfying a height threshold setting configured by the wireless communication node. (Item 41) The wireless communication method according to item 36, further comprising the wireless communication node periodically receiving additional UE height measurement reports based on the reporting interval setting and the number of reports setting in the UE height measurement setting, after the height of the UE satisfies the height threshold setting set by the wireless communication node. (Item 42) The above UE height measurement report is, The height of the above UE, An indication that the above height of the above UE meets the height threshold setting, or An indicator showing the identification of a cell, RS, or TRP that satisfies the associated height threshold set by the above height threshold setting. A wireless communication method as described in item 36, comprising at least one of the following. (Item 43) The above UE height measurement report is carried by at least one of the following: a Radio Resource Control (RRC) message, a Media Access Control Element (MACCE), or Layer 1 (L1) signaling, as described in item 36 of the wireless communication method. (Item 44) The above setting message further includes at least one of the measurement target (MO) setting or reporting setting for interference detection, as described in item 36, for the wireless communication method. (Item 45) The wireless communication method described in item 44, wherein the above MO setting includes a reference MO ID associated with a reference MO setting, and the above MO setting and the above reference MO setting are associated with the same synchronous signal block (SSB) frequency or channel status information reference signal (CSI-RS) frequency. (Item 46) The above MO settings are: Multiple parameters, each a parameter for the above-mentioned interference detection and radio resource management (RRM) measurement values, or An indicator indicating whether the UE is indicated to perform the above interference detection, or whether the above measurement target is applicable to interference detection. A wireless communication method as described in item 44, comprising at least one of the following. (Item 47) The above multiple parameters are, A threshold for integrating one or more measurement results for the synchronization signal (SS) / physical broadcast channel (PBCH) block from the Layer 1 (L1) filter. A threshold for integrating one or more measurement results for the Channel State Information Reference Signal (CSI-RS) resource block from the L1 filter. The maximum number of beamlevel measurement results (one or more) based on SS / PBCH blocks to be averaged. The maximum number of one or more beam-level measurement results based on CSI-RS resources to be averaged, or List of cells for interference detection A wireless communication method as described in item 46, which includes at least one of the following. (Item 48) Reporting settings are: Multiple parameters, each of which is a parameter for interference detection and RRM measurement, or An indicator showing whether the above UE is indicated to perform the above interference detection, or whether the above reporting settings are applicable to interference detection. A wireless communication method as described in item 44, comprising at least one of the following. (Item 49) The wireless communication method according to item 46, further comprising receiving an interference detection report from the above-mentioned UE, wherein the interference detection report includes the cell quality of one or more adjacent cells, and the cell quality is derived based on the above-mentioned multiple parameters for interference detection. (Item 50) The radio communication method described in item 36, further comprising receiving a fault report from the UE upon detection of an MCG or SCG fault, wherein the fault report includes at least one of the following: location, altitude, speed, or flight path information of the UE. (Item 51) The above-mentioned MCG or SCG failure includes at least one of the following: a radio link failure, a handover failure, a PSCell addition failure, or a PSCell modification failure, as described in item 50 of the wireless communication method. (Item 52) A wireless communication method, wherein the wireless communication method is From the wireless communication node, the user equipment (UE) performs cell selection or reselection. An indicator showing whether a cell is not applicable for an aerial UE to access. An indicator that shows whether a cell is not applicable for an aerial UE to access, wherein the altitude of the aerial UE is within a certain range. An indicator that shows whether a frequency or cell is unsuitable for an airborne UE for cell reselection, wherein the altitude of the airborne UE is within a certain range, or Priority information to set the priority order for selection between multiple adjacent cells. Receiving at least one of the following pieces of information, Select or re-select cells according to at least one of the above information. Wireless communication methods, including those mentioned above. (Item 53) The wireless communication method according to item 52, wherein the priority information includes a first priority set and a second priority set corresponding to the airborne UE at different altitudes, and condition information indicating the conditions for applying the first priority set and the second priority set. (Item 54) A wireless communication method, wherein the wireless communication method is For cell selection or re-selection, the wireless communication node sends a message to the user equipment (UE): An indicator showing whether a cell is not applicable for an aerial UE to access. An indicator that shows whether a cell is not applicable for an aerial UE to access, wherein the altitude of the aerial UE is within a certain range. An indicator that shows whether a frequency or cell is unsuitable for an airborne UE for cell reselection, wherein the altitude of the airborne UE is within a certain range, or Priority information to set the priority order for selection between multiple adjacent cells. Transmitting at least one of the following pieces of information Wireless communication methods, including those mentioned above. (Item 55) The wireless communication method according to item 54, wherein the priority information includes a first priority set and a second priority set corresponding to the airborne UE at different altitudes, and condition information indicating the conditions for applying the first priority set and the second priority set. (Item 56) A wireless communication device, wherein the wireless communication device is At least one memory location for storing at least one program, One or more processors, each of which communicates with at least one memory and executes at least one program to cause the wireless communication device to perform the method described in any one of items 1 to 55, A wireless communication device equipped with the following features. (Item 57) A non-temporary computer-readable storage medium storing at least one program, wherein the at least one program, when executed by one or more processors, causes a wireless communication device to perform the method described in any one of items 1 to 55. [Brief explanation of the drawing]

[0036] [Figure 1] An example of a wireless communication network is shown.

[0037] [Figure 2] A flowchart for one of the wireless communication methods of this disclosure is shown.

[0038] [Figure 3] Another flowchart for one of the wireless communication methods of this disclosure is shown.

[0039] [Figure 4] Another flowchart for one of the wireless communication methods of this disclosure is shown.

[0040] [Figure 5] An example of a wireless communication device capable of implementing any one of the wireless communication methods described in this disclosure is shown. [Modes for carrying out the invention]

[0041] Detailed explanation For example, radio communication between an aircraft or an in-aircraft radio device using a radio access network within a cellular network may involve several aerial characteristics not present in ground-based radio devices. Therefore, the configuration and maintenance of radio links may be handled in a special manner based on parameters related to these aerial characteristics. For instance, the altitude of the aircraft or an in-aircraft radio device may change significantly during various stages of communication, and radio link configuration may need to be considered to maintain or improve communication quality and efficiency. These parameters can be reported to the access network in various ways so that they can be taken into account in network configuration and maintenance.

[0042] In some implementations, the altitude of an aircraft or radio devices within an aircraft (collectively referred to as "User Equipment (UE)") may be monitored. For example, one or more altitude reporting events for User Equipment (UE) may be introduced, for example, two events designated as H1 and H2. These two new events would trigger an altitude report if, for example, the UE is above (i.e., event H1) or below (i.e., event H2) a network configuration threshold. Furthermore, in extended implementations, the RRM (Radio Resource Management) measurement framework may be extended to allow the UE to be configured to trigger a measurement report when an event condition is met for a configurable number of cells. For example, events applicable for this extension may include events A3 (specified that Neighbour is a better offset amount than PCell / PSCell), A4 (specified that Neighbour is better than an absolute threshold), and A5 (specified that PCell / PSCell is worse than absolute threshold d1 and Neighbour / SCell is better than another absolute threshold d2). These extensions help the eNB (Enhanced Node B) determine that a UE is flying and / or detect that a UE may be causing or being affected by interference.

[0043] To improve mobility performance, RRC (Radio Resource Control) signaling techniques may be added to enable UEs to indicate planned flight paths to base stations. More specifically, a UE can indicate locations where it has a planned flight path that can be considered by base stations for mobile purposes. For example, a base station can use this information to know in advance which cells are suitable for a UE to hand over to and whether it would be beneficial for a new connection to be established.

[0044] In some implementations, aerial services may be subscribeable, and signaling from the core network to base stations can be introduced to carry information about whether the subscription supports aerial UE functionality, so that the network knows whether the UE has a suitable subscription.

[0045] CU / DU (Centralized Unit / Distributed Unit) Split Architecture

[0046] Base stations can be implemented in a segmented architecture according to network functions associated with various layers within the radio network protocol stack. As an example, Figure 1 shows an overall architecture with a central unit / distributed unit (CU / DU) segmentation. A gNB (3GPP® 5G next-generation base station supporting 5G new radio) may consist of a gNB central unit (gNB-CU) and one or more gNB distributed units (gNB-DU). The gNB-CU and gNB-DU are connected via an F1 interface. The gNB-CU is defined as a logical node that hosts the gNB's RRC, SDAP (Service Data Adaptation Protocol), and PDCP (Packet Data Convergence Protocol) protocols, or the en-gNB (equivalent to a gNB that can connect with EPC and ng-eNB) RRC and PDCP protocols, which control the operation of one or more gNB-DUs. The gNB-DU is defined as a logical node that hosts the gNB or en-gNB's RLC, MAC, and PHY layers, and its operation is partially controlled by the gNB-CU. A single gNB-DU can support one or more cells. For example, a single cell may be supported by only one gNB-DU.

[0047] 1. Expansion of measurement data reporting

[0048] According to one embodiment of this disclosure, a wireless communication method is disclosed. This method is as shown in Figure 2,

[0049] The user equipment (UE) receives a configuration message from the wireless communication node.

[0050] UE height measurement setting, or

[0051] Request for UE flight path reporting settings, Set at least one of the UE settings,

[0052] Follow the configuration message to trigger a report to the wireless communication node. The present invention provides a wireless communication method that includes [specific details omitted].

[0053] In response to this, a wireless communication method that can be performed by a base station or core network is disclosed. This method is

[0054] The wireless communication node transmits a configuration message to the UE.

[0055] UE height measurement setting, or

[0056] Request for UE flight path reporting settings, Set at least one of the UE settings,

[0057] The wireless communication node receives a UE height measurement report from the UE, and the report is generated according to a configuration message. Includes.

[0058] According to one embodiment, the UE height measurement setting is associated with at least one of the following: cell ID information, reference signal identification (RSID), or transmission receiving point (TRP) information.

[0059] According to one embodiment, the UE height measurement setting includes at least one of the following parameters:

[0060] Reference height threshold;

[0061] Offset of the reference height threshold;

[0062] Hysteresis parameters used within entry and exit conditions of event-triggered reporting conditions;

[0063] A timer indicating a time parameter to be triggered, during which specific criteria for the event must be met in order to trigger the measurement report;

[0064] An indicator showing whether the UE can begin measuring its height when the withdrawal conditions are met;

[0065] The interval or period for the UE to periodically report UE height measurements; or

[0066] The maximum number of UE height measurement reports available for UE.

[0067] To implement aerial UE applications in 5G scenarios, the following improvements can be made to enhance functionality.

[0068] 1.1 Measurement Reporting Based on Set Height Threshold

[0069] According to one embodiment, the UE may transmit a UE height measurement report to the wireless communication node in response to the UE's height satisfying a height threshold setting configured by the wireless communication node.

[0070] The following two reporting events can be introduced.

[0071] Event H1: The height of the aerial UE exceeds the threshold H1, and / or

[0072] Event H2: The height of the aerial UE falls below threshold H2.

[0073] In other words, a UE can trigger a UE height report to the NW (Network) to report its height when it detects that its height is above (i.e., event H1) or below (i.e., event H2) one or more height thresholds. The thresholds for event H1 and event H2 may be the same or different. The height report may be used to help the NW identify the flight status of an airborne UE. The NW may then perform certain actions in scheduling or radio resource management (RRM), such as adjusting the serving beam for the UE or setting some airborne UE-specific measurements for the UE.

[0074] 1.1.1 Height Measurement Setting

[0075] According to one embodiment, the UE height measurement setting is:

[0076] A reference height threshold for a UE, which is a reference height threshold for triggering height measurement when a condition based on the reference height threshold is met, or

[0077] A list of reference height thresholds, where each reference height threshold is associated with at least one of the following: cell ID information, reference signal identification (RSID), or transmission receiving point (TRP) information. It includes at least one of the following.

[0078] According to one embodiment, the UE height measurement setting includes at least one of the following parameters:

[0079] Reference height threshold;

[0080] Offset of the reference height threshold;

[0081] Hysteresis parameters used within entry and exit conditions of event-triggered reporting conditions;

[0082] A timer indicating a time parameter to be triggered, during which specific criteria for the event must be met in order to trigger the measurement report;

[0083] An indicator showing whether the UE can begin measuring its height when the withdrawal conditions are met;

[0084] The interval or period for the UE to periodically report UE height measurements; or

[0085] The maximum number of UE height measurement reports available for UE.

[0086] According to one embodiment, the UE height measurement setting is indicated by at least one of the following: RRM / L3 (Layer Three) measurement setting, measurement target information, measurement reporting setting, L1 (Layer One) measurement setting, or RS or beam measurement setting.

[0087] RRC setup messages or RRC resume messages can include measurement settings. The network can update the measurement settings to the UE when the UE connects to the base station (BS). The configured measurement settings may include, for example, the measurement target, reporting settings, and measurement identification (MeasID).

[0088] In one example, the height measurement settings (i.e., height reporting-related parameters) may be set according to one of the following embodiments:

[0089] Example 1

[0090] The parameters for setting the height measurement can be set up independently between different UEs. That is, the network can adjust the height measurement settings for different UEs. Therefore, two options can be used to implement this technique.

[0091] Option 1-1: Height measurement settings, including height reporting-related parameters, may be included directly in measurement settings such as MeasConfig.

[0092] Option 1-2: Alternatively, the height measurement settings, including height reporting-related parameters, may be configured in the reporting settings (e.g., included in the reportType parameter within the ReportConfigNR parameter) and associated with a single measurement object (e.g., MeasObjectNR) for a serving cell (e.g., SpCell).

[0093] Example 2

[0094] The parameters for setting the height measurement can be set independently across different cells of the UE. That is, the network can adjust the height measurement settings for different cells. Therefore, two options can be used to implement this technique:

[0095] Option 2-1: A list of height reporting-related parameters may be set in the measurement settings (e.g., within the MeasConfig or ReportConfig parameters in the RRC message), each associated with cell ID information (e.g., PCI+ frequency).

[0096] In this example, the settings are associated with each cell's ID information, and therefore the settings are cell-specific. Different measurement settings can be implemented in different cells.

[0097] Option 2-2: Alternatively, height reporting-related parameters may be set in the reporting settings (for example, included in the ReportType parameter within the ReportConfigNR parameter) and associated with the measurement target for each serving cell (e.g., including SpCell and SCell).

[0098] Option 2-3: Alternatively, the height reporting parameters may be set in the measurement target settings (e.g., MeasObjectNR or MeasObjectEUTRA in the RRC message). In this embodiment, the cell-specific height reporting parameters are defined by the MeasObjectNR or MeasObjectEUTRA parameters in the RRC message.

[0099] Example 3:

[0100] In this example, the parameters for setting the height measurement can be set independently between the serving cell's reference signaling (RS) or beams. That is, the network can adjust the height measurement settings for different reference signalings or beams. Therefore, two options can be used to implement this technique.

[0101] Option 3-1: A list of height reporting-related parameters may be set in the RRC message (e.g., MeasConfig or ReportConfig parameters). Each measurement setting may also be associated with the serving cell's RS ID (e.g., SSB index or CSI-RS index), so that RS / RS beam-specific measurement settings can be implemented using the RSID associated with the setting to identify the corresponding RS.

[0102] Option 3-2: Alternatively, height reporting-related parameters may be configured in the RS / beam level measurement settings (e.g., SSB-ConfigMobility, CSI-RS-ResourceConfigMobility, or CSI-MeasConfig).

[0103] Example 4:

[0104] In this example, the parameters for height measurement settings can be set up independently between the serving cell's transmission point and receiving point (TRP). That is, the network can adjust the height measurement settings for different transmission and receiving points. For example, a list of height reporting-related parameters may be set in, for example, the MeasConfig or ReportConfig information element. Each measurement setting may be associated with the serving cell's TRP-related information (e.g., TCI-StateId or coresetPoolIndex).

[0105] The implementations in the above examples can be combined or used together. For example, height measurements can be set per RS, per beam, or per TRP for some serving cells, and per cell for other serving cells.

[0106] In one implementation, if multiple height measurement settings (e.g., multiple reference height thresholds) are configured for the UE, the settings can be associated with the same measurement ID (MeasId). That is, one MeasId is associated with all height measurement settings. Alternatively, multiple height measurement settings can be associated with different measurement IDs. That is, one height measurement setting is associated with one MeasId.

[0107] In this disclosure, the height reporting-related parameters that may be included in the measurement setting may include at least one of the following items:

[0108] A reference height threshold (e.g., heightThreshRef) is a value representing the height in meters relative to sea level, used as a threshold to trigger height measurement or reporting events.

[0109] Reference height threshold offset (e.g., h1-ThresholdOffset or h2-ThresholdOffset);

[0110] Hysteresis to a threshold, a parameter used within the entry and exit conditions of event-triggered reporting conditions;

[0111] The time during which a measurement report should be triggered requires that specific criteria for the event be met;

[0112] An indicator (e.g., metreportOnLeave) that shows whether the UE should initiate the measurement reporting procedure when the departure condition is met;

[0113] The interval between two height reports or measurements when the UE periodically reports or measures height (e.g., reportsreportInterval);

[0114] The number of measurement reports that can be triggered by the UE (e.g., reportAmount); or

[0115] The type of height report (e.g., eventTriggered).

[0116] For each event (i.e., H1 or H2), the values ​​of each height reporting-related parameter can be set to be the same or different. For example, the reference height threshold value can be set to the same value for both event H1 and event H2.

[0117] 1.1.2 Triggers for reporting height measurements

[0118] The following examples define the conditions for triggering a UE to measure its height and / or reporting that height to the BS.

[0119] According to one embodiment of this disclosure, the UE may transmit a UE height measurement report to a wireless communication node, such as a base station, in response to the UE's height meeting a height threshold setting configured by the wireless communication node.

[0120] According to one embodiment of this disclosure, the UE may periodically transmit additional UE height measurement reports to the wireless communication node after the UE height has met a height threshold setting set by the wireless communication node, based on the reporting interval setting and the number of reports setting in the UE height measurement setting. This flow is shown in Figure 3.

[0121] According to one embodiment of this disclosure, UE height measurement reporting is,

[0122] UE height;

[0123] An indicator showing that the UE height meets the height threshold setting; or

[0124] An indicator showing the identification of a cell, RS / beam, or TRP whose associated height threshold, as set by the height threshold setting, is met. It may include at least one of the following.

[0125] In the first alternative, when the UE detects that its height is above or below the baseline height threshold in the NW configuration (i.e., the conditions for the event to be met), the UE is triggered to transmit a height measurement report to the NW (Network).

[0126] In one implementation, if multiple reference height thresholds are set, the UE may trigger multiple height measurement reports to the NW when multiple events for different height thresholds are met. That is, the UE may trigger a height measurement report when it detects that any one of the reference height thresholds is met.

[0127] Instead of and in addition to this, when the UE detects that its height meets the reference height threshold of one or more NW settings (i.e., when the conditions of the event are met), the UE triggers a height report to the NW and can then trigger height reports periodically based on the reporting interval (e.g., reportInterval) and the reporting amount (e.g., reportAmount) of the NW settings. The reporting interval determines the period or interval between two reporting transmissions. The reporting amount determines the total amount of reports to be transmitted. Further, if the UE is set that way by the NW, the UE can also trigger additional height reports when the detachment conditions of the event are met.

[0128] In this disclosure, the height measurement report / information may include one or more of the following items.

[0129] (1) The height of the UE;

[0130] (2) A timestamp associated with the height of the UE;

[0131] (3) An indication that the reference height threshold is met to trigger the reporting process, i.e., an indication that the height of the UE is above or below the reference height threshold; and / or

[0132] (4) An indication showing a list of cell / RS / beam / TRP information for which the associated reference height threshold is met to trigger the reporting process. That is, when the height of the UE is above or below the corresponding reference height threshold of a specific cell / RS / beam / TRP, the identification of the cell / RS / beam / TRP can be included in the report.

[0133] Furthermore, the height report can be transmitted via an RRC message (e.g., MeasurementReport message), a MAC CE, or / and L1 (layer 1) signaling (e.g., CSI report).

[0134] 1.2 Flight path report

[0135] In addition to reporting altitude measurements, the UE can indicate whether flight path information is available during the RRC setup / resume / reconfiguration / re-establishment process. For example, the UE may include a display (e.g., flightPathInfoAvailable) in the RRC setup / resume / reconfiguration / re-establishment completion message. Thus, the NW can understand whether flight path information is available when receiving and processing a message that contains such a display.

[0136] Furthermore, the network can request the UE to report flight path information. For example, the network can include a request indicator (e.g., flightPathInfoReq) in an RRC message (e.g., a UEInformationRequest message). The request indicator may also include, if available, the maximum number of flight waypoints that the UE can include in the flight path information report, and whether a timestamp for each waypoint can be reported in the flight path information report.

[0137] According to one embodiment, the request for setting a flight path report is:

[0138] The maximum number of waypoints that a UE can include in its flight path report; or

[0139] An indicator showing whether a waypoint timestamp is required. It includes at least one of the following.

[0140] If requested by the network, the UE may report flight path information (e.g., flightPathInfoReport) via an RRC message (e.g., UEInformationResponse message).

[0141] In this disclosure, the flight path report / information may include at least one of the following items:

[0142] A list of positional information at waypoints along the flight path planned for the UE. In addition, the positional information may further include the UE's velocity and / or altitude information, and / or

[0143] Timestamps for each waypoint.

[0144] In response to the addition or modification of a primary SCG cell (PSCell), the UE can indicate whether flight path information is available to the secondary node (SN). For example, the UE may include a message in the RRC reconfiguration completion message to the SN (e.g., flightPathInfoAvailable) to indicate whether flight path information is available. This allows the PSCell / SN connected to the UE to understand whether the UE has flight path information available to the SN.

[0145] In certain implementations, the SN can directly request a flight path report from the UE. This allows the SN to send request information to the UE via an RRC message using SRB3. For example, the SN can send a request indicator (e.g., flightPathInfoReq in the UEInformationRequest message) to the UE via SRB3 to request a flight path report from the UE. Furthermore, the UE can report the flight path information (e.g., flightPathInfoReport, an RRC message in the UEInformationResponse message) to the SN via SRB3.

[0146] 1.3 Measurement for interference detection

[0147] For interference detection, the airborne UE can be configured with RRM events A3, A4, or A5 that trigger measurement reports when the individual (per-cell) RSRP (Reference Signal Received Power) values for a set number of cells meet an event with a set value. For example, the configuration can be set up by numberOfTriggeringCells within ReportConfigNR in the RRC message.

[0148] Considering the beam characteristics in NR, the interference detection requirements may be different from those in LTE. For example, one or two beams with strong RSRP can be considered as interference from the corresponding cell. Therefore, several improvements can be considered to more efficiently detect adjacent cell interference.

[0149] The number of triggering cells (e.g., numberOfTriggeringCells) can be set for any event A (e.g., A1 - A6) or event B (e.g., B1, B2). A detailed description of events A / B is shown below.

[0150] Event A1: The serving becomes better than an absolute threshold;

[0151] Event A2: The serving becomes worse than an absolute threshold;

[0152] Event A3: The neighbour becomes better than the PCell / PSCell by an offset amount;

[0153] Event A4: The neighbour becomes better than an absolute threshold;

[0154] Event A5: The PCell / PSCell becomes worse than absolute threshold 1, and the neighbour / SCell becomes better than another absolute threshold 2;

[0155] Event A6: The neighbour becomes better than the SCell by an offset amount;

[0156] Event B1: Neighbour becomes better than the absolute threshold; and

[0157] Event B2: PCell worsens below absolute threshold 1, and Neighbour improves above other absolute thresholds of 2.

[0158] 1.3.1 Setting the Measurement Target (MO)

[0159] According to one embodiment of this disclosure, a base station or core network may provide a configuration message that includes at least one of a measurement target (MO) setting or a reporting setting for interference detection.

[0160] According to one embodiment of this disclosure, the MO setting includes a reference MO ID associated with a reference MO setting, and the MO setting and the reference MO setting are associated with the same synchronous signal block (SSB) frequency or channel state information reference signal (CSI-RS) frequency.

[0161] According to one embodiment of this disclosure, the MO setting is

[0162] Multiple parameters, each a parameter for interference detection and RRM measurement; or

[0163] An indicator showing whether the UE is designated to perform interference detection, or whether the object being measured is applicable for interference detection. It includes at least one of the following.

[0164] According to one embodiment of this disclosure, a plurality of parameters are,

[0165] A threshold for integrating one or more measurement results for the synchronization signal (SS) / physical broadcast channel (PBCH) block from the Layer 1 (L1) filter;

[0166] A threshold for integrating one or more measurement results for the Channel State Information Reference Signal (CSI-RS) resource block from the L1 filter;

[0167] The maximum number of beam-level measurement results (one or more) based on SS / PBCH blocks to be averaged;

[0168] The maximum number of one or more beam-level measurement results based on CSI-RS resources to be averaged; or

[0169] List of cells for interference detection, It includes at least one of the following.

[0170] According to one embodiment of this disclosure, the reporting settings are:

[0171] Multiple parameters, each a parameter for interference detection and RRM measurement; or

[0172] An indicator showing whether the UE is indicated to perform interference detection, or whether the reporting settings are applicable for interference detection. It includes at least one of the following.

[0173] According to one embodiment of this disclosure, the UE can derive the cell quality of one or more adjacent cells based on a plurality of parameters for interference detection, and the cell quality is used to determine whether a measurement report is triggered for interference detection.

[0174] Regarding the MO configuration, at least one of the following alternative configurations can be considered.

[0175] Example 1

[0176] The network (NW) can configure one or more separate MOs for interference detection. Therefore, the NW can configure multiple MOs for the same frequency (e.g., SSB frequency, CSI-RS frequency). For example, the NW can configure two MOs associated with the same SSB / CSI-RS frequency, one for normal RRM measurement and the other for interference detection. The MO for normal RRM measurement may be associated with a reporting setting that does not include the number of trigger cells. The MO for interference detection may be associated with a reporting setting that includes the number of trigger cells.

[0177] Similarly, the network may include a reference MO ID (identifier) ​​(e.g., ReferenceMeasObjectId) in the MO configuration. The reference MO ID may be used to identify the reference MO configuration. The reference MO configuration can serve as a baseline or template for the delta configuration. The UE may adapt the delta configuration (e.g., several parameter values ​​different from the reference MO configuration) based on the reference configuration to generate different sets of MO configurations for interference detection. The MO configuration (i.e., including the reference MO ID) and the reference MO configuration may be associated with the same synchronous signal block (SSB) frequency or channel state information reference signal (CSI-RS) frequency.

[0178] Example 2

[0179] Alternatively, the network (NW) can set up the same MO for interference detection and normal RRM measurement. That is, in addition to the parameters for normal RRM measurement, the NW may set up additional parameters and / or separate sets of parameters for interference detection in the same MO setting. The NW may also include an indicator (e.g., forInterferenceDetection) within the MO to indicate whether the MO is also applicable to interference detection, or whether the UE is instructed to perform interference detection. The indicator may be set to instruct the UE to use at least one of several / a set of parameters for interference detection. For example, if the value of this indicator is set to true, the UE must use the values ​​of the additional / separate set of parameters for interference detection. Based on several / a set of parameters for interference detection, the UE may derive cell quality (e.g., RSRP, RSRQ, SINR) for one or more adjacent cells. The quality of adjacent cells may be used to determine whether measurement reporting should be triggered (e.g., for interference detection), i.e., whether the conditions for an event are met.

[0180] An additional and / or separate set of parameters may include at least one of the following items:

[0181] (1) An (absolute) threshold (e.g., absThreshSS-BlocksConsolidation2) for consolidating the measurement results in each SS (Synchronization Signal) / PBCH block from the L1 (Layer 1) filter. This field is used to derive the cell measurement results. If the threshold is met, the UE consolidates the measurement results into their respective SS / PBCH blocks.

[0182] (2) An (absolute) threshold (e.g., absThreshCSI-RS-Consolidation2) for consolidating the measurement results for each CSI-RS resource from the L1 filter. This field is used to derive the cell measurement results. If the threshold is met, the UE consolidates the measurement results into their respective CSI-RS resources.

[0183] (3) The maximum number of beam-by-beam measurement results based on the SS / PBCH blocks to be averaged (e.g., nrofSS-BlocsToAverage2);

[0184] (4) Maximum number of per-beam measurement results based on CSI-RS resources to be averaged (nrofCSI-RS-ResourcesToAverage2);

[0185] (5) An offset value applicable to all measured cells with a reference signal shown in MO (e.g., offsetMO2);

[0186] (6) A list of cells for interference detection, e.g., cellsForInterferenceDetectionToRemoveList, cellsForInterferenceDetectionToAddModList, cellsToRemoveList2, cellsToAddModList2, blackCellsToRemoveList2, blackCellsToAddModList2, whiteCellsToRemoveList2, whiteCellsToAddModList2;

[0187] (7) Offset value for consolidating the measurement results for each SS / PBCH block from the L1 filter, such as absThreshSS-BlocksConsolidationOffset. This field is an offset value based on the threshold for normal RRM (i.e., absThreshSS-BlocksConsolidation) used to derive the absolute threshold for interference detection. For example, the threshold for interference detection may be equal to the RRM threshold plus the offset, or

[0188] (8) An offset value for consolidating the measurement results for each CSI-RS resource from the L1 filter, e.g., absThreshCSI-RS-ConsolidationOffset. This field is an offset value based on the threshold for the normal RRM (i.e., absThreshCSI-RS-Consolidation) used to derive the absolute threshold for interference detection. For example, the threshold for interference detection may be equal to the RRM threshold plus the offset.

[0189] These fields are used for interference detection for airborne UEs. Field values ​​may differ from those of normal RRM measurements.

[0190] 1.3.2 Reporting settings for inference detection

[0191] The NW may further introduce additional and / or separate sets of parameters within the reporting configuration for interference detection (e.g., ReportConfigNR), and may also include an indicator (e.g., forInterferenceDetection) to indicate whether the reporting configuration is also applicable to interference detection, or whether the UE is indicated to perform interference detection. The indicator is configured to indicate to the UE to use at least one of several / a set of parameters for interference detection. For example, if the indicator value is set to true, the UE must use the values ​​in the additional and / or separate set of parameters for interference detection. The UE determines whether a measurement report should be triggered based on several / a set of parameters for interference detection, i.e., whether the conditions for an event are met. The measurement report may include interference measurement results, e.g., cell quality of adjacent cells (e.g., RSRP, RSRQ, SINR).

[0192] Additional and / or separate sets of parameters for interference detection may include at least one of the following items:

[0193] (1) A threshold (e.g., a4-ThresholdForInterferenceDetection) associated with a selected number of triggers (e.g., RSRP, RSRQ, SINR) for each RS type (e.g., SS / PBCH block, CSI-RS) to be used in the measurement reporting trigger condition for event number aN / bN;

[0194] (2) One or more offset values ​​to be used in the measurement reporting trigger condition for event aN (e.g., a3 - OffsetForInterferenceDetection);

[0195] (3) Hysteresis (e.g., hysteresis2) values ​​for interference detection, which are parameters used within the entry and exit conditions of the event-triggered reporting conditions;

[0196] (4) The time value to be triggered for interference detection, which is the time during which a specific criterion in the event must be met in order to trigger the measurement report (e.g., timeToTrigger2); or

[0197] (5) An offset value based on the threshold (e.g., a4-Threshold) or offset value (a3-Offset) to be used in the measurement reporting trigger condition for event numbers aN / bN for the RRM, which is used to derive the threshold and / or offset for interference detection, for example the threshold / offset for interference detection may be equal to the threshold / offset for the RRM plus the offset.

[0198] These fields are used for interference detection for airborne UEs. Field values ​​may differ from those of normal RRM measurements.

[0199] 2. Improvement of bug reporting

[0200] According to one embodiment of this disclosure, the wireless communication method further includes transmitting a fault report to a wireless communication node upon detection of an MCG or SCG fault, the fault report including at least one of the following: UE location, altitude, speed, or flight path information.

[0201] In response to this, a radio communication method that may be performed by a base station further includes receiving a fault report from a UE upon detection of an MCG or SCG fault, the fault report including at least one of the following: the UE's location, altitude, speed, or flight path information.

[0202] According to one embodiment of this disclosure, an MCG or SCG failure includes at least one of a radio link failure, a handover failure, a PSCell addition failure, or a PSCell modification failure.

[0203] If a UE detects a reconfiguration involving an MCG / SCG failure, such as an RLF (Radio Link Failure) or a synchronization failure (e.g., a handover failure, a PSCell addition failure, or a PSCell change failure), the UE may include its position, altitude, speed, and / or flight path information in a failure report, such as an RLF report, RA report, MCG failure information message, or SCG failure information message, if such information is available. The failure report may also include a timestamp for each piece of information about the UE's position, altitude, speed, and / or flight path.

[0204] Detailed altitude and flight path information may be provided in accordance with the disclosures in Section 1.1, “Measurement Reporting Based on Established Altitude Thresholds,” and Section 1.2, “Flight Path Reporting,” of this disclosure.

[0205] 3. Improved cell selection / re-selection

[0206] According to one embodiment of this disclosure, a wireless communication method is provided. This method is shown in Figure 4,

[0207] User equipment (UE) receives a request from a wireless communication node (such as a network) for cell selection or reselection.

[0208] (1) An indicator showing whether a cell is not applicable for an airborne UE to access.

[0209] (2) An indicator that shows whether a cell is not applicable to an aerial UE for access, wherein the height of the aerial UE is within a certain range;

[0210] (3) An indicator that indicates whether a frequency or cell is unsuitable for an airborne UE for cell reselection, wherein the airborne UE is within a certain range of heights; or

[0211] (4) Priority information to set the priority for selection between multiple adjacent cells To receive at least one of the following pieces of information;

[0212] (5) Select or re-select a cell according to at least one of the pieces of information. The present invention provides a wireless communication method that includes [specific details omitted].

[0213] In response to this, a method that may be implemented by the core network or base station is disclosed. This method is

[0214] By the wireless communication node, for cell selection or reselection,

[0215] (1) An indicator showing whether the cell is unapplicable due to an airborne UE;

[0216] (2) An indicator that indicates whether a cell is unapplicable for an aerial UE, and that the height is within a certain range;

[0217] (3) An indicator that indicates whether a frequency or cell is unapplicable to an airborne UE, and which is within a certain range of height; or

[0218] (4) Priority information to set the priority to be selected between multiple adjacent cells and The present invention provides a wireless communication method that includes transmitting at least one of the following pieces of information.

[0219] In one implementation, the priority information includes a first priority set and a second priority set corresponding to aerial UEs at different heights, and conditional information indicating the conditions for applying the first and second priority sets.

[0220] Due to its mobility and other characteristics that differ from conventional UEs, aerial UEs may require special processing for cell selection and re-selection. Improving the selection of cells that aerial UEs can connect to can help improve the functionality of aerial UEs.

[0221] For example, some cells may not be suitable for aerial UE camping (e.g., if the UE height exceeds a defined height threshold). The network can broadcast or transmit aerial UE-related information for cell selection and / or reselection in system information (SI) messages or dedicated RRC signaling (e.g., RRC reset messages or RRC release messages).

[0222] For example, aerial UE-related information for cell selection / re-selection may include at least one of the following items:

[0223] (1) An indicator that shows whether the cell is not allowed to connect to an airborne UE. For example, the network can include the cellBarredforUAV parameter in an SI message (e.g., MIB, SIB1, etc.).

[0224] (2) An indicator indicating whether a cell is not permitted to connect to a UE at its height / altitude above and / or below a network-configured height threshold. For example, the network may include a cell-related height threshold in an SI message (e.g., MIB, SIB1, etc.).

[0225] (3) A list of height threshold information for cell reselection, each associated with frequency or cell information (e.g., frequency + PCI), indicating that the use of the frequency / cell is not permitted if the UE height / altitude is above / below the corresponding height threshold in the NW setting;

[0226] (4) A separate cell reselection priority indicator to show the cell reselection priority for airborne UEs (e.g., cellReselectionPriority2);

[0227] (5) An indicator to show cell reselection priority when the UE height / altitude is above or below the NW-configured height threshold. For example, the NW may include a cell-related height threshold and / or cell reselection priority indicator (e.g., cellReselectionPriority2) to show cell reselection priority (for connecting to other primary or secondary cells) when the UE height / altitude is above or below the height threshold. This information may be included in an SI message (e.g., SIB2 / 3 / 4 / 5, etc.) or a dedicated RRC message. For example, if the UE height is above the NW-configured height threshold, the UE must use the cell priority indicated by the cell reselection priority indicator (e.g., cellReselectionPriority2) for cell reselection. Otherwise, the legacy cell priority indicator (e.g., cellReselectionPriority) must be used by the UE for cell reselection.

[0228] (6) A list of cell reselection priority information, each associated with a height threshold in the NW settings, indicating that the cell reselection priority may be used when the UE height / altitude is above / below the corresponding height threshold; or

[0229] (7) A separate / additional set of parameters for deriving cell quality for cell selection / re-selection for aerial UE.

[0230] A separate / additional set of parameters for deriving cell quality for cell selection / re-selection for aerial UE may include at least one of the following items:

[0231] The number of SS blocks to average for deriving cell measurements, e.g., nrofSS-BlocksToAverageforUAV; or

[0232] A threshold for consolidating L1 measurements per RS ​​(e.g., SSB) index, e.g., absThreshSS-BlocksConsolidationforUAV.

[0233] The above displays and information (1) to (7) can be included in SI messages (e.g., SIB2 / 3 / 4 / 5, etc.) or dedicated RRC messages (e.g., RRC reset messages or RRC release messages).

[0234] 4.Improved mobility

[0235] During the handover process, the UE may switch its connection from the source MN to the target MN. To operate in the air, some information may be transferred from the source MN to the target MN.

[0236] In the case of a handover (including, for example, a conditional handover (CHO) and a dual active protocol stack (DAPS) handover), the source MN can forward altitude information, flight path information, and / or interference measurement results received from the UE during handover preparation to the target MN via Xn / X2 messages (e.g., a handover request message).

[0237] In the case of adding or modifying an SN / PSCell (including conditional PSCell addition / modification (CPAC)), the MN or source SN may transfer altitude information, flight path information, and / or interference measurement results received during the SN addition procedure to the target SN via an Xn / X2 message (e.g., an SN Addition Request message).

[0238] When the system is implemented according to an architecture such as that shown in Figure 1, with partitioned CUs and DUs (e.g., inter-DU mobility within a CU), a CU or source DU can forward altitude information, flight path information, and / or interference measurement results received via F1 messages (e.g., UE CONTEXT SETUP REQUEST messages) to a target DU.

[0239] Exemplary implementations of height information, flight path information, and / or interference measurement results are described in Section 1.1 “Measurement Reporting Based on a Set Height Threshold”, Section 1.2 “Flight Path Reporting”, and Section 1.3 “Measurements for Interference Detection” of this disclosure.

[0240] For example, the above information can be transmitted in accordance with at least one of the following embodiments.

[0241] Information may be included as an information element (IE) in an Xn / X2 message or an F1 message; or

[0242] Alternatively, the information may be included in an RRC message (e.g., HandoverPreparationInformation), which in turn may be included as an IE in an Xn / X2 or F1 message.

[0243] In the case of conditional mobility (e.g., CHO, CPAC), the network can set one or more candidate cell settings and one or more corresponding execution conditions in the UE. The UE can begin evaluating one or more execution conditions upon receiving a conditional reset and begin executing mobility when at least one of the execution conditions is met.

[0244] In the case of an aerial UE, one or more execution conditions can be set as follows:

[0245] Example 1: Event H1 / H2 triggers a conditional mobility procedure when the UE height exceeds or falls below a threshold such as H1 or H2, respectively.

[0246] Example 2: Combination of Event H1 / H2 and Event A3 / A5 / A4 / B1. The conditions for triggering conditional mobility can be a combination of Event H1 and Event A / B. Event H and Event A / B can be conjunctional ("AND") or disjunct ("OR"). For example, conditional mobility is triggered when both Event H1 and Event A3 are met, i.e., the UE height is above the threshold and the candidate cell quality (RSRP / RSRQ / SINR) is a better offset than SpCell. Different events may be combined in a disjunct form by "OR". For example, conditional mobility is triggered when at least one of Event H1 or Event A3 is met.

[0247] In one implementation, one or more execution conditions may include a list of measIDs related to the above-mentioned events H and A / B.

[0248] 5. Interaction / Cooperation between MN (Master Node) and SN (Secondary Node)

[0249] When a secondary network node is added to the communication system, or when there are any changes related to the SN, the MN can share different types of information related to the airborne UE in order to improve the functionality of the communication system.

[0250] According to one embodiment, this disclosure is,

[0251] This includes transmitting user equipment (UE) subscription information from a first communication node (such as an MN, CU, or target MN) to a second communication node (such as an SN, DU, or source MN), where the UE subscription information is used to indicate whether the UE is made available to use the airborne UE function. To provide a wireless communication method.

[0252] In one exemplary embodiment, the method further includes, in response to receiving UE subscription information, having a first communication node receive at least one of the following information from a second communication node:

[0253] (1) An indicator for requesting the first communication node to set a UE height measurement in the UE;

[0254] (2) UE height measurement setting generated by the second communication node;

[0255] (3) An indicator for requesting a UE height report from the first communication node;

[0256] (4) An indicator indicating whether a UE height measurement report has been requested by the second communication node;

[0257] (5) An indicator for requesting the first communications node to set up a request for UE flight path reporting to the UE;

[0258] (6) Request for UE flight path reporting settings generated by the second communication node;

[0259] (7) An indicator for requesting a UE flight path report held by the first communication node; or

[0260] (8) An indicator showing whether a UE flight path report has been requested from the second communications node.

[0261] Transferring UE subscription information

[0262] In response to the addition of an SN, the MN may send aerial UE subscription information to the SN via Xn / X2 messages. For example, the MN may include UE subscription information in an indicator within the SN addition request message. This information is used to inform the SN whether the UE is permitted to use aerial / UAV UE functions. If the UE is permitted, the SN may configure UAV-specific functions for the UE (e.g., altitude reporting, flight path reporting, interference detection, etc.) or request UAV-related information (e.g., altitude reporting, flight path reporting) from the MN or the UE.

[0263] Height measurement setting

[0264] According to one embodiment of this disclosure, the wireless communication method further includes transmitting a UE height measurement setting from the first communication node to the UE for setting the UE with respect to height measurement, which may be in response to a request from the second communication node.

[0265] According to one embodiment of this disclosure, the UE height measurement setting is:

[0266] A reference height threshold for a UE, which is a reference height threshold for triggering height measurement when a condition based on the reference height threshold is met, or

[0267] A list of reference height thresholds, where each reference height threshold is associated with at least one of the following: cell ID information, reference signal identification (RSID), or transmission receiving point (TRP) information. It includes at least one of the following.

[0268] In the MR-DC (Multi-RAT Dual Connectivity) scenario, the height measurement settings can be determined or set by MN and / or SN.

[0269] If both MN and SN can set height measurements separately, MN and SN may need to adjust their height-related measurement IDs according to the following alternative example.

[0270] For example, MN can indicate the maximum number of height-related measurement IDs that can be set by SN via Xn / X2 messages (e.g., SN addition request messages or SN modification request messages).

[0271] Alternatively, MN and SN may renegotiate the maximum number of height-related measurement IDs that can be set by SN.

[0272] The MN can indicate the maximum number of height-related measurement IDs that can be set by the SN via Xn / X2 messages (e.g., SN addition request messages or SN modification request messages).

[0273] If SN requests more, SN can send the requested maximum number of height-related measurement IDs to MN via an Xn / X2 message (e.g., a message indicating that SN needs correction). MN can then accept or reject SN's request.

[0274] If only the MN can set the height measurement (i.e., the height measurement setting can only be sent via the MN RRC message), the SN can send request information (e.g., heightMeas-Request) to the MN via an Xn / X2 message (e.g., an SN correction required message).

[0275] If the MN has the most recent height report received from the UE, or if the height report meets the SN's requirements, for example, if the height of the airborne UE is above or below the reference height threshold required / set by the SN, the MN may forward the height report to the SN in response to the SN's request via an Xn / X2 message (e.g., an SN correction confirmation message). Otherwise, the MN sets the height measurement to the UE as the SN's request information.

[0276] The request information may include at least one of the following:

[0277] An indicator to request MN to set a height measurement; or

[0278] Height measurement settings generated by the SN, e.g., height reference threshold. Detailed height measurement settings may also include the settings described in section 1.1.1 Height Measurement Settings of this disclosure.

[0279] The above information (e.g., maximum height-related measurement ID count, request information from SN, height reporting information) may be transferred between SN and MN in accordance with at least one of the following embodiments.

[0280] The information may be directly included in the Xn / X2 message as IE; or

[0281] Alternatively, the information may be included in an RRC message (e.g., a CG-ConfigInfo or CG-Config message). The RRC message is included in the Xn / X2 message as an IE.

[0282] Height measurement report transfer

[0283] Furthermore, height measurement reports can be transferred between MN and SN.

[0284] According to one embodiment of this disclosure, the wireless communication method further includes transmitting at least one of the following information from a first communication node to a second communication node: location, altitude, speed, or flight path information of the UE.

[0285] According to one embodiment of this disclosure, the wireless communication method is transmitted from a first communication node to a second communication node.

[0286] An indication that the UE's height meets the height threshold set by the second communication node; or

[0287] An indicator showing the identification of a cell, RS, or TRP whose threshold set by the second communication node is met. Further includes transmitting at least one of the following.

[0288] For example, when MN receives a height measurement report from UE, it may send height measurement report-related information to SN via an Xn / X2 message (e.g., an SN correction request message or other / new message).

[0289] Alternatively, MN may send height measurement report-related information to SN in response to SN's request, or SN may indicate to SN that a height measurement report has been requested.

[0290] Specifically, SN may send an indicator to MN requesting height reporting via Xn / X2 messages (e.g., SN modification required message or other / new message), or SN may indicate via Xn / X2 messages (e.g., SN Addition response message or SN Modification response message) whether it is interested in or requests UE height measurement reporting.

[0291] The MN may send height measurement reporting-related information to the SN via Xn / X2 messages (e.g., SN correction confirmation messages, SN correction request messages, or other / new messages).

[0292] The height measurement reporting information in this disclosure may include at least one of the following:

[0293] (1) Reporting of height measurements, e.g., height of the UE;

[0294] (2) An indicator showing whether a height measurement report has been received from the UE, or whether the height of the UE meets the threshold set by the SN; or

[0295] (3) A list of cell / RS / TRPID information for which the associated height report is received from the UE, or for which the height of the UE satisfies the threshold associated with the cell / RS / TRP information set by the SN.

[0296] Furthermore, the above height reporting-related information may be transmitted via at least one of the following embodiments.

[0297] (1) Information may be directly included in the Xn / X2 message as IE; or

[0298] (2) The information may be included in RRC messages (e.g., CG-ConfigInfo, CG-Config messages), and RRC messages may be included in Xn / X2 messages as IE.

[0299] Request for flight path reporting settings

[0300] According to one embodiment of this disclosure, the wireless communication method further includes transmitting a request for flight path reporting settings from a first communication node to a UE.

[0301] According to one embodiment of this disclosure, the request for setting up a flight path report includes at least one of the following:

[0302] The maximum number of waypoints that a UE can include in its flight path report; or

[0303] An indicator showing whether a waypoint timestamp is required.

[0304] In the case of MR-DC, the requirement for flight path reporting may be determined or set by the MN and / or SN.

[0305] If only the MN can set up a request for a flight path report, the SN can send request information (e.g., flightPath-Request) to the MN via an Xn / X2 message (e.g., SN Correction Required) to request the MN to set up a flight path report.

[0306] If the MN has the most recent flight path report received from the UE, the MN can forward the flight path report to the SN via an Xn / X2 message (e.g., an SN correction acknowledgment message) in response to the SN's request for the flight path report. Otherwise, the MN can set the flight path request to the UE as the SN's request information.

[0307] The request information received by the MN from the SN may include at least one of the following items:

[0308] (1) An indicator to request MN to set up a request for flight path reporting;

[0309] (2) The maximum number of waypoints that a UE may include in its flight path information report; or

[0310] (3) An indicator showing whether the timestamp for each waypoint can be reported in the flight path report if timestamp information is available in the UE.

[0311] The above information (e.g., request information from SN, flight path report information) can be transmitted in accordance with at least one of the following embodiments:

[0312] (1) Information may be directly included in the Xn / X2 message as IE; or

[0313] (2) The information may be included in an RRC message (for example, a CG-ConfigInfo or CG-Config message), which is included in the Xn / X2 message as an IE.

[0314] Flight path report forwarding

[0315] Furthermore, the MN may transmit the flight path report in one of the following embodiments:

[0316] For example, when an MN receives a flight path report from a UE, it can send the flight path report information to the SN via an Xn / X2 message (e.g., an SN correction request message or other / new message).

[0317] Alternatively, MN may transmit flight path report information to SN in response to a request from SN, or when SN indicates that a flight path report has been requested from SN.

[0318] For example, an SN can send an indicator to an MN requesting a flight path report via an Xn / X2 message (e.g., an SN modification required message or another / new message), or an Xn / X2 message (e.g., an SNAddition response or an SNModification response) indicating that the SN is interested in or requests a flight path report from the UE.

[0319] In one implementation, the MN can transmit flight path information to the SN via Xn / X2 messages (e.g., SN correction confirmation messages, SN correction request messages, or other / new messages).

[0320] For example, the above flight path information may include at least one of the following:

[0321] A list of waypoint locations along the planned flight path for the UE; or

[0322] Timestamps for each waypoint.

[0323] For example, the above-mentioned flight path reporting-related information (e.g., indicators from SN, flight path information from MN) can be transmitted via at least one of the following means:

[0324] The information may be directly included in the Xn / X2 message as IE; or

[0325] Alternatively, the information may be included in an RRC message (e.g., a CG-ConfigInfo or CG-Config message), and this RRC message may be included in an Xn / X2 message as an IE.

[0326] 6. Interaction / Cooperation between CU and DU

[0327] As shown in Figure 1, when wireless communication has a CU / DU partitioned structure, information transfer between the CU and DU can improve the functionality of the airborne UE.

[0328] Transferring UE subscription information

[0329] In UE context setup between the CU and DU, the CU can send aerial UE subscription information to the DU via F1 messages. For example, the CU can include an indicator in the UE CONTEXT SETUP REQUEST message to the DU. This information is used to inform the DU whether the UE is permitted to use aerial UE functions. If the UE is permitted to use aerial UE functions, the DU can configure UAV-specific functions for the UE (e.g., altitude reporting, flight path reporting, interference detection, etc.) or request UAV-related information (e.g., altitude reporting, flight path reporting) from the CU or UE.

[0330] Height measurement setting

[0331] In the case of CU / DU division, the setting of the height measurement can be determined by CU and / or DU.

[0332] If the DU determines a height measurement setting or a partial height measurement setting (e.g., a reference height threshold), the DU may send the height measurement setting to the CU via an F1 message. For example, the DU may include the height measurement setting in the IE DU To CU RRC Information within a UE CONTEXT MODIFICATION REQUIRED message or other message.

[0333] For example, the height measurement setting may include at least one of the following items:

[0334] A reference height threshold used as a threshold to trigger height measurement; or

[0335] A list of reference height thresholds, where each reference height threshold is associated with cell ID information (e.g., CGI, PCI+ frequency), RS information (e.g., SSB index, CSI-RS index), or TRP information (e.g., TCI-StateId, coresetPoolIndex).

[0336] Height measurement report transfer

[0337] Furthermore, height measurement reports can be transferred between the CU and DU.

[0338] For example, when the DU receives a height measurement report from the UE, the CU may send height measurement report-related information to the DU via an F1 message (e.g., a UE CONTEXT MODIFICATION RESQUEST message or other / new message).

[0339] Alternatively, the CU may send the DU information related to the height measurement report in response to the DU's request, or the DU may indicate to the DU that a height measurement report has been requested.

[0340] Specifically, the DU may send an indicator to the CN requesting height reporting via an F1 message (e.g., a UE CONTEXT MODIFICATION RESQUIRED message or other / new message), or the DU may indicate that it is interested in or requests UE height measurement reporting via an F1 message (e.g., a UE CONTEXT SETUP RESPONSE message or other / new message).

[0341] The CU may send height measurement reporting-related information to the DU via an F1 message (e.g., a UE CONTEXT MODIFICATION CONFIRM message, a UE CONTEXT MODIFICATION RESQUEST message, or other / new message).

[0342] The height measurement reporting information in this disclosure may include at least one of the following:

[0343] (1) Reporting of height measurements, e.g., height of the UE;

[0344] (2) An indicator showing whether a height measurement report has been received from the UE; or

[0345] (3) A list of cell / RS / TRP ID information from which the associated height report is received from the UE.

[0346] Furthermore, the above height reporting-related information may be transmitted via at least one of the following embodiments.

[0347] (1) The information may be directly included in the F1 message as IE; or

[0348] (2) The information may be included in an RRC message (e.g., a CG-ConfigInfo or CG-Config message), and the RRC message may be included in an F1 message as an IE.

[0349] Flight path report forwarding

[0350] Furthermore, the CU may transmit the flight path report in one of the following manner:

[0351] For example, when a CU receives a flight path report from a UE, it may send the flight path report information to a DU via an F1 message (e.g., a UE CONTEXT MODIFICATION RESQUEST message or other / new message).

[0352] Alternatively, the CU may transmit flight path report information to the DU in response to a request from the DU, or if the DU indicates that a flight path report has been requested from the DU.

[0353] For example, a DU may send an indicator to a CU requesting a flight path report via an F1 message (e.g., a UE CONTEXT MODIFICATION RESQUIRED message or other / new message), or the DU may be interested in or requesting a flight path report from a UE via an F1 message (e.g., a UE CONTEXT MODIFICATION RESQUIRED message or other / new message).

[0354] In one implementation, the CU can send flight path information to the DU via an F1 message (e.g., UE CONTEXT MODIFICATION CONFIRM message, UE CONTEXT MODIFICATION RESQUEST message, or other / new message).

[0355] For example, the above flight path information may include at least one of the following:

[0356] A list of waypoint locations along the planned flight path for the UE; or

[0357] Timestamps for each waypoint.

[0358] For example, the above-mentioned flight path reporting-related information (e.g., indicators from the DU, flight path information from the CU) can be transmitted via at least one of the following means:

[0359] The information may be directly included in the F1 message as IE; or

[0360] Alternatively, the information may be included in an RRC message (e.g., CG-ConfigInfo, CG-Config message, or HandoverPreparationInformation), which in turn may be included in an F1 message as an IE.

[0361] 7. Platform

[0362] Figure 5 shows a wireless communication device according to an embodiment of this disclosure. This configuration may be used as a UE, BS, MN, SN, CU, or DU or other wireless communication system to carry out the method of this disclosure. The wireless communication device comprises one or more processors and one or more memory sets. The memory stores one or more non-temporary computer-readable media programs. One or more processors can execute the non-temporary computer-readable media programs to carry out the method for wireless communication described above. Exemplarily, the wireless communication device may include a transmitter and a receiver for transmitting or receiving signals. The wireless communication device may also include a user input / output interface for accepting user commands. The method of this disclosure can be carried out by a communication system having a group of devices, the group of devices can be considered as a whole as a wireless communication device.

[0363] Furthermore, at least one program can be stored in memory, and the memory can be carried by a computer program product. The computer program product includes non-temporary computer-readable program medium code stored therein. When the code is executed by at least one processor, it causes at least one processor to implement the method for the wireless communication program described above.

[0364] Some of the embodiments described herein are described in the general context of methods or processes that may be carried out in some embodiments by computer program products embodied on computer-readable media containing computer-executable instructions, such as program code executed by computers in a network environment. Computer-readable media may include, but are not limited to, volatile and non-volatile storage devices, such as digital versatile discs (DVDs), compact discs (CDs), read-only memory (ROM), and random access memory (RAM). Thus, computer-readable media may include non-temporary storage media. Generally, a program module may include routines, programs, objects, components, data structures, etc., that perform a particular task or implement a particular abstract data type. Computer or processor-executable instructions, associated data structures, and program modules represent examples of program code for performing steps of the methods disclosed herein. A particular sequence of such executable instructions or associated data structures represents an example of corresponding behavior for performing the function described in such steps or processes.

[0365] Some of the disclosed embodiments can be implemented as devices or modules using hardware circuits, software, or a combination thereof. For example, a hardware circuit implementation may include individual analog and / or digital components integrated, for example, as part of a printed circuit board. Alternatively or in addition thereto, the disclosed components or modules may be implemented as field-programmable gate arrays (FPGAs) and / or application-specific integrated circuit (ASIC) devices. Some implementations may, in addition or alternatively, include a digital signal processor (DSP), which is a dedicated microprocessor having an architecture optimized for the operational needs of digital signal processing associated with the functionality disclosed in this application. Similarly, various components or sub-components within each module may be implemented in software, hardware, or firmware. Connectivity between modules and / or components within a module may be provided using any of the connectivity methods and media known in the art, including, but not limited to, communication over the Internet, wired, or wireless networks using appropriate protocols.

[0366] This document contains many details, but these should not be interpreted as limitations on the scope of the invention described in the claims or the invention that could be described in the claims, but rather as descriptions of features specific to particular embodiments. Certain features described in this document in the context of separate embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented separately or in any suitable partial combination in multiple embodiments. Furthermore, features described above as acting in a particular combination may be initially claimed as such, but one or more features from a claimed combination may, in some cases, be cut from the combination, and the claimed combination may be directed to a partial combination or a variation of a partial combination. Similarly, although each operation is shown in the drawings in a particular order, this should not be understood as requiring that such operations be performed in a particular order or sequential order shown, or that all shown operations be performed, in order to achieve a desired result.

[0367] Only a few implementations and examples are described, and other implementations, extensions, and variations can be made based on those described and illustrated in this disclosure.

Claims

1. A wireless communication method, The wireless communication method includes transmitting UE subscription information of a user equipment (UE) and UE flight path information of the UE from a first communication node to a second communication node, wherein the UE subscription information is used to indicate whether the UE is permitted to use airborne UE functions. A wireless communication method wherein the first communication node is a first base station including a master node (MN), a centralized unit (CU), or a source MN, and the second communication node is a second base station including a secondary node (SN), a distributed unit (DU), or a target MN, and the UE subscription information and the UE flight path information are transmitted via a handover request message.

2. The wireless communication method is The first communication node receives the following information from the second communication node in response to the second communication node receiving the UE subscription information, namely, An indicator for requesting the first communication node to set the UE height measurement value to the UE, UE height measurement setting generated by the second communication node, An indicator for requesting a UE height report from the first communication node, An indicator showing whether a UE height measurement report has been requested by the second communication node, An indicator for requesting the first communication node to set a request for a UE flight path report to the UE, Request for UE flight path reporting settings generated by the second communication node, An indicator for requesting a UE flight path report held by the first communication node, or An indicator showing whether a UE flight path report has been requested by the second communication node. The wireless communication method according to claim 1, further comprising receiving at least one of the following.

3. The wireless communication method is Setting the UE for setting the UE in relation to the height measurement report, or, Request for UE flight path reporting settings The wireless communication method according to claim 1, further comprising transmitting at least one of the above from the first communication node to the UE.

4. The UE height measurement setting includes at least one of a reference height threshold for the UE or a list of multiple reference height thresholds, The reference height threshold for the aforementioned UE is for triggering height measurement when the conditions based on the reference height threshold are met, The wireless communication method according to claim 3, wherein each reference height threshold is associated with at least one of cell ID information, reference signal identification (RS ID), or transmission receiving point (TRP) information.

5. The aforementioned request for setting the UE flight path report is, The maximum number of waypoints that the aforementioned UE may include in its flight path report, An indicator showing whether a waypoint timestamp is required. The wireless communication method according to claim 3, comprising at least one of the following.

6. The wireless communication method is In addition to the flight path information of the aforementioned UE, the position, altitude, or speed of the aforementioned UE, A height indicator indicating that the height of the UE satisfies a height threshold set by the second communication node, or An identification indicator that shows the identification of a cell, RS, or TRP that satisfies the threshold set by the second communication node. The wireless communication method according to claim 1, further comprising transmitting at least one of the following pieces of information from the first communication node to the second communication node.

7. A wireless communication method, wherein the wireless communication method is The user equipment (UE) receives a configuration message from a first wireless communication node to configure at least one of the following: the UE's UE height measurement setting or the UE's UE flight path reporting setting. In accordance with the aforementioned configuration message, a report to the first wireless communication node is triggered, The UE flight path information of the aforementioned UE is transmitted from the first wireless communication node to the second wireless communication node. Includes, A wireless communication method wherein the first wireless communication node is a first base station including a master node (MN) or a centralized unit (CU) or a source MN, and the second wireless communication node is a second base station including a secondary node (SN) or a distributed unit (DU) or a target MN, and the UE flight path information is transmitted via a handover request message.

8. The aforementioned UE height measurement setting is, Reference height threshold, Offset of reference height threshold, Hysteresis parameters used within the entry and exit conditions of event-triggered reporting conditions. A time for triggering a parameter indicating a timer, during which a specific criterion for the event must be met in order to trigger a measurement report. An indicator indicating whether the UE is permitted to begin UE height measurement when the aforementioned withdrawal conditions are met, The interval or period for the aforementioned UE to periodically report UE height measurements, or Maximum number of UE height measurement reports available to the aforementioned UE The wireless communication method according to claim 7, comprising at least one of the following.

9. The wireless communication method according to claim 8, wherein the UE height measurement setting is associated with at least one of cell ID information, reference signal identification (RS ID), or transmission receiving point (TRP) information.

10. The wireless communication method according to claim 7, wherein the UE height measurement value setting is indicated by at least one of the measurement target information, measurement value reporting setting, or RS or beam measurement value setting.

11. The wireless communication method according to claim 7, further comprising transmitting a UE height measurement report to the first wireless communication node in response to the height of the UE satisfying a height threshold setting set by the first wireless communication node.

12. The wireless communication method according to claim 11, further comprising periodically transmitting additional UE height measurement reports to the first wireless communication node based on the reporting interval setting and the number of reports setting in the UE height measurement setting, after the height of the UE satisfies the height threshold setting set by the first wireless communication node.

13. The aforementioned UE height measurement report is, The height of the aforementioned UE, A height indicator that shows that the height of the UE satisfies the height threshold setting, or An identification indicator that identifies a cell, RS, or TRP that satisfies the relevant height threshold set by the aforementioned height threshold setting. The wireless communication method according to claim 11, comprising at least one of the following.

14. The wireless communication method according to claim 7, wherein the setting message further includes at least one of a measurement target (MO) setting or a reporting setting for interference detection.

15. The wireless communication method according to claim 14, wherein the MO setting includes a reference MO ID associated with a reference MO setting, and the MO setting and the reference MO setting are associated with the same synchronization signal block (SSB) frequency or channel state information reference signal (CSI-RS) frequency.

16. The aforementioned MO setting is, Multiple parameters for the interference detection and radio resource management (RRM) measurements, or An indicator indicating whether the UE is indicated to perform the interference detection, or whether the object being measured is applicable to interference detection. The wireless communication method according to claim 14, comprising at least one of the following.

17. The aforementioned multiple parameters are, A threshold for integrating one or more measurement results for the synchronization signal (SS) / physical broadcast channel (PBCH) block from the Layer 1 (L1) filter. A threshold for integrating one or more measurement results for the Channel State Information Reference Signal (CSI-RS) resource block from the L1 filter. The maximum number of beam-level measurement results based on SS / PBCH blocks to be averaged, The maximum number of beam-level measurement results based on CSI-RS resources to be averaged, or List of multiple cells for interference detection The wireless communication method according to claim 16, comprising at least one of the following.

18. Reporting settings are: Multiple parameters for interference detection and RRM measurement, or An indicator indicating whether the UE is indicated to perform the interference detection, or whether the reporting settings are applicable to interference detection. The wireless communication method according to claim 14, comprising at least one of the following.

19. The wireless communication method transmits a fault report to the first wireless communication node when an MCG or SCG fault is detected. It further includes, The incident report includes at least one of the following: the location, altitude, speed, or flight path information of the UE. The wireless communication method according to claim 7, wherein the MCG or SCG failure includes at least one of a wireless link failure, a handover failure, a PSCell addition failure, or a PSCell modification failure.

20. A first wireless communication node, wherein the first wireless communication node is At least one memory for storing at least one program, One or more processors and Equipped with, The one or more processors communicate with the at least one memory, The one or more processors are configured to cause the first wireless communication node to transmit UE subscription information of a user equipment (UE) and UE flight path information of the UE from the first wireless communication node to the second wireless communication node by executing the at least one program, wherein the UE subscription information is used to indicate whether the UE is permitted to use airborne UE functions. The first wireless communication node is a first base station including a master node (MN) or centralized unit (CU) or source MN, and the second wireless communication node is a second base station including a secondary node (SN) or distributed unit (DU) or target MN, wherein the UE subscription information and the UE flight path information are transmitted via a handover request message to the first wireless communication node.

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