Device and method in wireless communication system

Abstract

The present application discloses an apparatus and method in a wireless communication system. The apparatus includes a processing circuit, which is configured to: determine one or more height threshold values ​​for a user equipment based on one or more of base station related information, cell related information, or user equipment related information; and generate configuration information including the one or more height threshold values, the configuration information is to be sent to the user equipment, wherein the configuration information is included in a radio resource control RRC layer signaling, the RRC layer signaling includes a system broadcast message, an RRC connection establishment message, or an RRC connection reconfiguration message.

Description

[0001] This application is a divisional application of an invention patent application with an application date of August 8, 2018, application number 201880050849.6 (international stage application number PCT / CN2018 / 099408), and invention name “Device and method in wireless communication system, computer-readable storage medium”.

[0002] This application claims the priority of Chinese patent application filed with the China Patent Office on August 11, 2017, with application number 201710686365.8 and invention name “Device and method in wireless communication system, computer-readable storage medium”, the entire contents of which are incorporated by reference in this application. Technical Field

[0003] The present application relates to the field of wireless communication technology, and more specifically, to unmanned aerial vehicle (UAV) communication technology based on Long Term Evolution (LTE). Background Art

[0004] Currently, the industry is increasingly interested in using unmanned aerial vehicles (also known as drones) in cellular networks. The commercial use cases of drones are also growing rapidly, such as search and rescue, critical infrastructure monitoring, wildlife protection, flying cameras, surveillance, etc. These use cases will increase rapidly in the next few years. The distribution of LTE existing networks can provide services for drones very well. Therefore, if drones are connected to current LTE networks, it will definitely help greatly to enhance the application of drones in these scenarios.

[0005] However, considering that drones are different from general user equipment (UE) on the ground, for example, the flight altitude and speed of drones are much greater than ordinary UEs on the ground. When the flight altitude of a drone is low (relative to the base station), the drone can be regarded as a general UE. However, when the flight altitude of a drone is high (for example, higher than the base station), the uplink signal from the drone will be received by more cells due to the direct path (Line-of-Sight, LoS). At this time, the uplink signal from the drone is an interference signal relative to other cells outside its service cell, which will affect the normal communication of UE, Internet of Things (IoT) and other devices in these cells. Therefore, there is an urgent need to enhance drone communications based on LTE. Summary of the invention

[0006] A brief overview of the disclosure is given below in order to provide a basic understanding of certain aspects of the disclosure. However, it should be understood that this overview is not an exhaustive overview of the disclosure. It is not intended to identify the key or important parts of the disclosure, nor is it intended to limit the scope of the disclosure. Its purpose is simply to give certain concepts of the disclosure in a simplified form as a prelude to a more detailed description given later.

[0007] In view of this, an object of at least one aspect of the present disclosure is to provide a solution for determining, configuring, and updating one or more altitude thresholds for drone communications to better serve LTE-based drone communications.

[0008] According to one aspect of the present disclosure, a device in a wireless communication system is provided, the device comprising a processing circuit, the processing circuit being configured to: determine one or more height threshold values ​​for a user equipment based on at least one of base station related information, cell related information and user equipment related information.

[0009] According to another aspect of the present disclosure, a device in a wireless communication system is also provided, the device including a processing circuit, the processing circuit being configured to: based on configuration information from a base station, obtain one or more height threshold values ​​for a user equipment where the device is located, wherein the one or more height threshold values ​​are determined by the base station based on at least one of base station-related information, cell-related information, and user equipment-related information.

[0010] According to another aspect of the present disclosure, a device in a wireless communication system is also provided, the device including a processing circuit, the processing circuit being configured to: obtain one or more height threshold values ​​for a user equipment where the device is located based on pre-configuration information or indirectly based on configuration information from a base station, wherein the configuration information from the base station includes one or more height threshold values ​​determined by the base station based on at least one of base station-related information, cell-related information, and user equipment-related information.

[0011] According to another aspect of the present disclosure, a device in a wireless communication system is also provided, the device comprising a processing circuit, wherein the processing circuit is configured to: in response to a request from a base station, confirm whether a user device is allowed to use a current network, wherein the user device has drone communication capability.

[0012] According to another aspect of the present disclosure, a method in a wireless communication system is also provided, the method comprising: determining one or more height threshold values ​​for a user equipment based on at least one of base station related information, cell related information and user equipment related information.

[0013] According to another aspect of the present disclosure, a method in a wireless communication system is also provided, the method comprising: based on configuration information from a base station, obtaining one or more height threshold values ​​for a user equipment, wherein the one or more height threshold values ​​are determined by the base station based on at least one of base station-related information, cell-related information, and user equipment-related information.

[0014] According to another aspect of the present disclosure, a method in a wireless communication system is also provided, the method comprising: obtaining one or more height threshold values ​​for a user equipment based on pre-configuration information or indirectly based on configuration information from a base station, wherein the configuration information from the base station comprises one or more height threshold values ​​determined by the base station based on at least one of base station-related information, cell-related information and user equipment-related information.

[0015] According to another aspect of the present disclosure, a method in a wireless communication system is also provided, the method comprising: in response to a request from a base station, confirming whether a user equipment is allowed to use a current network, wherein the user equipment has drone communication capability.

[0016] According to other aspects of the present disclosure, a computer-readable storage medium having executable instructions for implementing the method according to the present disclosure, a computer program code for implementing the method according to the present disclosure, and a computer program product are also provided.

[0017] According to at least one aspect of the embodiments of the present disclosure, by setting a reasonable height threshold value for the drone communication scenario, it is possible to better serve LTE-based drone communications and effectively solve and optimize various problems that may exist in drone communication scenarios, such as working mode configuration, resource allocation, etc.

[0018] According to another aspect of an embodiment of the present disclosure, by configuring the operation of a user device based on a height threshold value, the communication performance in a drone communication scenario can be optimized.

[0019] According to another aspect of an embodiment of the present disclosure, by allocating resources based on altitude threshold values, time-frequency resource allocation in UAV communication scenarios can be optimized, resource utilization efficiency can be improved, and interference can be reduced.

[0020] Other aspects of the embodiments of the present disclosure are given in the following description, wherein the detailed description is used to fully disclose the preferred embodiments of the embodiments of the present disclosure without imposing limitations thereon. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present disclosure may be better understood by referring to the detailed description given below in conjunction with the accompanying drawings, wherein the same or similar reference numerals are used throughout the drawings to represent the same or similar components. The accompanying drawings, together with the following detailed description, are included in and form a part of the present specification to further illustrate the preferred embodiments of the present disclosure and to explain the principles and advantages of the present disclosure. Among them:

[0022] Figure 1 is a block diagram showing a configuration example of a device on the base station side in a wireless communication system according to the first embodiment of the present disclosure;

[0023] Figure 2A is a schematic diagram showing an example scenario of setting one or more height thresholds based on base station related information according to an embodiment of the present disclosure;

[0024] Figure 2B is a schematic diagram showing an example scenario of setting a height threshold based on cell-related information according to an embodiment of the present disclosure;

[0025] Figure 2C is a schematic diagram showing an example scenario of setting a height threshold value based on user equipment related information according to an embodiment of the present disclosure;

[0026] Figure 3 is a flowchart showing a signaling interaction process in which a user equipment actively performs information feedback according to an embodiment of the present disclosure;

[0027] Figure 4 is a flowchart showing a signaling interaction process in which a user equipment performs information feedback in response to a query of a base station according to an embodiment of the present disclosure;

[0028] Figure 5 is a schematic diagram showing an example of a communication scenario according to an embodiment of the present disclosure;

[0029] Figure 6 is a flowchart showing a signaling interaction process in the event of a handover according to an embodiment of the present disclosure;

[0030] Figure 7 is a schematic diagram showing a scenario example in which a base station sends configuration information of a height threshold value to a user equipment within coverage;

[0031] Figure 8 is a flow chart showing an example of a signaling interaction process for configuring a height threshold value through a system broadcast message;

[0032] Fig. 9 is a flow chart showing an example of a signaling interaction process for configuring a height threshold value through an RRC connection establishment message;

[0033] Fig.10 is a flow chart showing an example of a signaling interaction process for configuring a height threshold value through an RRC connection reconfiguration message;

[0034] Fig.11 is a block diagram showing another configuration example of a device on the base station side in the wireless communication system according to the first embodiment of the present disclosure;

[0035] Fig.12 is a flowchart showing an example of a signaling interaction process of an authentication process according to an embodiment of the present disclosure;

[0036] Fig.13 is a block diagram showing a configuration example of an apparatus at a user equipment side in a wireless communication system according to a first embodiment of the present disclosure;

[0037] Fig.14 is a schematic diagram showing another communication scenario example according to an embodiment of the present disclosure;

[0038] Fig.15 is a block diagram showing another configuration example of an apparatus at a user equipment end in a wireless communication system according to the first embodiment of the present disclosure;

[0039] Fig.16 is a block diagram showing a configuration example of an apparatus of a core network side in a wireless communication system according to a first embodiment of the present disclosure;

[0040] Fig.17 is a flowchart showing an example of a process of a method at a base station side in a wireless communication system according to the first embodiment of the present disclosure;

[0041] Fig.18 is a flowchart showing an example of a process of a method at a user equipment end in a wireless communication system according to a first embodiment of the present disclosure;

[0042] Fig.19 is a flowchart showing another process example of the method at the user equipment end in the wireless communication system according to the first embodiment of the present disclosure;

[0043] Fig. 20 is a flowchart showing an example of a process of a method of a core network terminal in a wireless communication system according to a first embodiment of the present disclosure;

[0044] Fig.21 is a block diagram showing a configuration example of a device on the base station side in a wireless communication system according to a second embodiment of the present disclosure;

[0045] Fig. 22 is a flowchart showing an example of a signaling interaction process for implementing a working mode configuration based on a height threshold value according to an embodiment of the present disclosure;

[0046] Fig.23 is a flowchart showing another example of a signaling interaction process for implementing a working mode configuration based on a height threshold value according to an embodiment of the present disclosure;

[0047] Fig.24 is a block diagram showing a configuration example of a user equipment side in a wireless communication system according to a second embodiment of the present disclosure;

[0048] Fig.25 is a flowchart showing an example of a process of a method at a base station side in a wireless communication system according to a second embodiment of the present disclosure;

[0049] Fig.26 is a flowchart showing an example of a process of a method at a user equipment end in a wireless communication system according to a second embodiment of the present disclosure;

[0050] Fig. 27 is a block diagram showing a configuration example of a device on the base station side in a wireless communication system according to a third embodiment of the present disclosure;

[0051] Fig.28 is a flowchart illustrating an example of a signaling interaction process of a resource allocation scheme according to an embodiment of the present disclosure;

[0052] Fig.29 is a schematic diagram showing an example of a resource allocation scheme based on altitude intervals according to an embodiment of the present disclosure;

[0053] Fig.30 is a schematic diagram showing an example of a resource allocation scheme based on three-dimensional positions according to an embodiment of the present disclosure;

[0054] Fig.31A is a flowchart showing an example of a signaling interaction process for optimizing resource allocation through interference coordination between base stations according to an embodiment of the present disclosure;

[0055] Fig.31B is a flowchart showing another example of a signaling interaction process for optimizing resource allocation through interference coordination between base stations according to an embodiment of the present disclosure;

[0056] Fig.32 is a flow chart showing a signaling interaction process for assisting resource allocation in the case of X2-based handover;

[0057] Fig.33 is a flow chart showing a signaling interaction process for assisting resource allocation in case of S1-based handover;

[0058] Fig.34 is a block diagram showing a configuration example of an apparatus at a user equipment side in a wireless communication system according to a third embodiment of the present disclosure;

[0059] Fig.35 is a block diagram showing another configuration example of an apparatus at a user equipment end in a wireless communication system according to a third embodiment of the present disclosure;

[0060] Fig.36 is a schematic diagram showing an example of a resource pool partitioning method based on altitude intervals;

[0061] Fig.37 is a schematic diagram showing an example of a resource pool division method based on a three-dimensional space;

[0062] Fig.38 is a flowchart showing an example of a process of a method at a base station side in a wireless communication system according to a third embodiment of the present disclosure;

[0063] Fig.39 is a flowchart showing an example of a process of a method at a user equipment end in a wireless communication system according to a third embodiment of the present disclosure;

[0064] Fig.40 is a flowchart showing another process example of a method at a user equipment end in a wireless communication system according to a third embodiment of the present disclosure;

[0065] Fig.41 is a block diagram showing an example structure of a personal computer as an information processing device that can be employed in an embodiment of the present disclosure;

[0066] Fig.42 is a block diagram showing a first example of a schematic configuration of an evolved node (eNB) to which the technology of the present disclosure can be applied; and

[0067] Fig.43 is a block diagram showing a second example of a schematic configuration of an eNB to which the technology of the present disclosure can be applied. DETAILED DESCRIPTION

[0068] Exemplary embodiments of the present disclosure will be described below in conjunction with the accompanying drawings. For the sake of clarity and conciseness, not all features of the actual implementation are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the process of developing any such actual implementation in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and these constraints may vary from implementation to implementation. In addition, it should be understood that although the development work may be very complex and time-consuming, it is only a routine task for those skilled in the art who benefit from the content of this disclosure.

[0069] It is also necessary to explain here that in order to avoid obscuring the present disclosure due to unnecessary details, only the device structure and / or processing steps closely related to the scheme according to the present disclosure are shown in the accompanying drawings, while other details that are not closely related to the present disclosure are omitted.

[0070] In the following, reference will be made to Figures 1 to 43 The preferred embodiments of the present disclosure are described in detail. Hereinafter, the description will be made in the following order.

[0071] 1. First Embodiment (Determination, Configuration and Update of Altitude Threshold Value and Identification and Authentication of UAV)

[0072] 1-1. Configuration example of base station

[0073] 1-2. User equipment configuration example

[0074] 1-2-1. Configuration Example of User Equipment Device in Coverage (IC)

[0075] 1-2-2. Configuration Example of Device at User Equipment Side Out of Coverage (OOC)

[0076] 1-3. Configuration example of the core network

[0077] 1-4. Method Examples

[0078] 2. Second Embodiment (Working Mode Configuration Based on Height Threshold Value)

[0079] 2-1. Configuration example of base station

[0080] 2-2. User equipment configuration example

[0081] 2-3. Method Example

[0082] 3. Third Embodiment (Resource Allocation Based on Height Threshold)

[0083] 3-1. Configuration example of base station

[0084] 3-2. User equipment configuration example

[0085] 3-2-1. Configuration example of the device at the user equipment end within the coverage

[0086] 3-2-2. Configuration example of the device at the user equipment end outside the coverage

[0087] 3-3. Method Example

[0088] 4. Computing device for implementing the embodiments of the apparatus and method of the present disclosure

[0089] 5. Application Examples of the Technology Disclosed

[0090] Before describing the embodiments of the present disclosure in detail, it should be noted that, hereinafter, when "user equipment" is mentioned, it can be understood to generally refer to "drone" or a terminal with drone communication capability, unless it is clearly stated that the user equipment is not a drone or does not have drone communication capability. The "drone communication capability" here refers to the ability of a drone to access an LTE network for communication.

[0091] In addition, it should be pointed out that the so-called "in coverage (IC)" and "out of coverage (OOC)" here refer to whether the user equipment is within the coverage of the base station, that is, whether there is an effective connection between the user equipment and the base station or whether the connection quality can meet the communication requirements. If so, the user equipment is called an "in coverage" user equipment, otherwise it is called an "out of coverage" user equipment. Whether the user equipment is within the coverage of the base station can be judged, for example, by detecting the energy of the synchronization signal, or by other methods known in the art, which will not be discussed in detail here.

[0092] [1. First embodiment (determination, configuration and update of altitude threshold value and certification and authentication of drone)]

[0093] (1-1. Configuration example of base station side)

[0094] Figure 1 : is a block diagram showing a configuration example of a device on the base station side in a wireless communication system according to the first embodiment of the present disclosure.

[0095] like Figure 1 As shown, the apparatus 100 according to this embodiment may include a determining unit 102 .

[0096] The determining unit 102 may be configured to determine one or more height thresholds for the user equipment based on at least one of the base station related information, the cell related information and the user equipment related information.

[0097] It should be noted that the altitude threshold value here may refer to an altitude value relative to the ground or may also be an altitude value relative to a certain reference altitude, and the present disclosure does not limit this. In addition, it should also be noted that, hereinafter, when referring to "altitude threshold value", it refers to one or more values, unless it is clearly stated that only one altitude threshold value is included.

[0098] Specifically, since different base stations may have different sizes, heights, locations and other related information, the same user equipment (i.e., UAV) has different relative heights relative to different base stations. Therefore, the height threshold values ​​determined for user equipment in different base stations may be different.

[0099] Figure 2A An example scenario of setting one or more height thresholds based on base station related information according to an embodiment of the present disclosure is shown.

[0100] like Figure 2A As shown, the base station BS1 and the base station BS2 have different sizes and heights, so the height threshold values ​​ThresUAVHeight1(BS1) to ThresUAVHeightN(BS1) determined for the user equipment in the base station BS1 and the height threshold values ​​ThresUAVHeight1(BS2) to ThresUAVHeightN(BS2) determined for the user equipment in the base station BS2 may be different in size, quantity and / or interval between each height threshold value. On the other hand, although the base station BS2 and the base station BS3 have the same size, they are located at different locations (for example, the base station BS2 is located on the ground, and the base station BS3 is located on a high-rise building), resulting in different heights of the two. Therefore, the height threshold values ​​ThresUAVHeight1(BS2) to ThresUAVHeightN(BS2) determined for the user equipment in the base station BS2 and the height threshold values ​​ThresUAVHeight1(BS3) to ThresUAVHeightN(BS3) determined for the user equipment in the base station BS3 may be different in size, quantity and / or interval between each height threshold value.

[0101] On the other hand, the same base station may include multiple cells, and the cell-related information such as the location, size, terrain, and buildings in each cell may be different, resulting in different relative heights of the same user equipment relative to different cells. Therefore, the height threshold values ​​determined for user equipment in different cells may be different.

[0102] Figure 2B An example scenario of setting a height threshold based on cell-related information according to an embodiment of the present disclosure is shown.

[0103] like Figure 2BAs shown, cell Cell1 and cell Cell2 are two cells belonging to the same base station. It can be seen that the sizes, terrains and buildings of the two cells are different. Therefore, the height threshold values ​​ThresUAVHeight1(Cell1) to ThresUAVHeightN(Cell1) determined for the user equipment in cell Cell1 and the height threshold values ​​ThresUAVHeight1(Cell2) to ThresUAVHeightN(Cell2) determined for the user equipment in cell Cell2 may be different in size, quantity and / or interval between each height threshold value.

[0104] Furthermore, since different user equipment may have different user equipment related information such as endurance time, operating frequency, transmission power, flight altitude / speed, etc., the determined height threshold value may also be different for different user equipment in the same base station or the same cell.

[0105] Figure 2C An example scenario of setting a height threshold based on user equipment related information according to an embodiment of the present disclosure is shown.

[0106] like Figure 2C As shown, user equipment UAV1, UAV2 and UAV3 are in the same cell of the same base station, but user equipment UAV1, UAV2 and UAV3 have different models, flight altitudes and speeds, etc., so that the size, quantity and / or interval between the height threshold values ​​ThresUAVHeight1(UAV1) to ThresUAVHeightN(UAV1) determined for user equipment UAV1, the height threshold values ​​ThresUAVHeight1(UAV2) to ThresUAVHeightN(UAV2) determined for user equipment UAV2, and the height threshold values ​​ThresUAVHeight1(UAV3) to ThresUAVHeightN(UAV3) determined for user equipment UAV3 may be different.

[0107] When determining the height threshold value for a certain user equipment, it is necessary to consider not only the relevant information of the user equipment itself, but also the relevant information of other user equipment around the user equipment, so as to more reasonably determine the height threshold value. That is, the user equipment related information may include not only the relevant information of the target user equipment, but also the relevant information of other user equipment around the target user equipment. The user equipment related information may be pre-stored at the base station end, or it may be information actively fed back by each user equipment or information fed back in response to a query from the base station. The user equipment related information may include, but is not limited to, the capability information of the user equipment (for example, whether it has the ability to communicate with drones, the maximum flight altitude and speed supported, etc.), communication parameters, etc. (for example, whether it supports multi-antenna transmission and reception, maximum transmission power, etc.). The following will describe these two feedback methods in detail.

[0108] Figure 3 The present invention is a flowchart showing a signaling interaction process in which a user equipment actively performs information feedback according to an embodiment of the present disclosure.

[0109] like Figure 3 As shown, after receiving the Radio Resource Control (RRC) connection reconfiguration signaling (RRCConnectionReconfiguration) from the base station BS, the user equipment UAV1 and UAV2 can include their respective user equipment related information in, for example, the user equipment assistance information (UEAssistanceInformation) signaling to feed back to the base station.

[0110] In this case, preferably, the apparatus 100 may further include an acquisition unit 104, which may be configured to acquire auxiliary information actively fed back by the user equipment as the user equipment related information. The auxiliary information may include but is not limited to one or more of the capability information of the user equipment, the expected flight altitude and the flight speed.

[0111] Figure 4 The flowchart shows a signaling interaction process in which a user equipment performs information feedback in response to a query of a base station according to an embodiment of the present disclosure.

[0112] like Figure 4As shown, the base station BS can query the user equipment UAV1 and UAV2 for information through, for example, signaling user equipment capability query (UECapabilityEnquiry), and the user equipment UAV1 and UAV2 can, after receiving the query, include the user equipment related information including capability information, communication parameters, etc. in the signaling user equipment capability information (UECapabilityInformation) to the base station. Specifically, for example, the base station can query whether the user equipment supports Evolved Universal Terrestrial Radio Access (Evolved Universal Terrestrial Radio Access, E-UTRA) in the signaling UECapabilityEnquiry. When the user equipment UAV1 and UAV2 feed back the signaling UECapabilityInformation to the base station, they can do so by modifying the existing information elements or fields in the signaling UECapabilityInformation, or they can also add new information elements or fields in ue-CapabilityRAT-Container→UE-EUTRA-CapabilityIE to indicate that the user equipment has the UAV communication capability, such as the maximum supported moving speed and flight altitude.

[0113] In this case, preferably, the apparatus 100 may further include a request unit 106, which may be configured to generate a capability query request for the user equipment to obtain capability information fed back by the user equipment in response to the capability query request as user equipment related information.

[0114] It should be noted that the above reference Figure 3 and Figure 4 The signaling interaction process described for feeding back user equipment related information is merely an example given to illustrate the principles of the present disclosure, in which processes irrelevant to the technology of the present disclosure are omitted, and those skilled in the art may also modify the interaction process according to actual needs. For example, information query and feedback may be performed through other signaling in addition to the above-mentioned signaling.

[0115] In addition, preferably, in addition to the auxiliary information or capability information fed back above, the user equipment can also actively or in response to the query of the base station and feed back the category information indicating its device category as user equipment related information to the base station. Specifically, a new user equipment category (UECategory 13) can be defined for the drone, mainly by adding a parameter UECategory 13 to the downlink physical layer parameter value and the uplink physical layer parameter value set by the field UE-Category, so that the device 100 at the base station end can obtain user equipment related information, including capability information, communication parameters, etc., according to the received category information indicating the device category.

[0116] According to the above description, the height threshold value determined for the user equipment may be base station-specific (BS-specific), cell-specific (Cell-specific) or user equipment-specific (UE-specific). In other words, for different base stations and / or cells or for the same base station and / or cell, the height threshold values ​​of the same user equipment may be the same or different, and the height threshold values ​​of different user equipment may be the same or different.

[0117] In actual application, according to the specific application scenario, the height threshold for the user equipment may be determined based on one or more of the above three factors (ie, base station related information, cell related information and user equipment related information).

[0118] In addition to the above factors, since the drone is in flight, its flight altitude, flight status, surrounding environment and other information are all changing dynamically. Therefore, preferably, these dynamically changing factors can also be taken into consideration when determining the altitude threshold value, which requires the user equipment to perform measurement and reporting.

[0119] Return to reference Figure 1 Preferably, the device 100 may also include a measurement configuration unit 108, which may be configured to generate measurement configuration information for the target user equipment and / or other user equipment, so that the target user equipment and / or other user equipment perform measurement reporting periodically, non-periodically or based on event triggering (for example, when a handover occurs, when traditional measurement reporting events A1 and A2 occur, when the current configuration information cannot meet the communication performance requirements of the user equipment, when the flight altitude change of the user equipment exceeds a predetermined threshold, etc.) according to the measurement configuration information. When configuring the altitude threshold value for any user equipment, only the measurement reporting result from the user equipment itself may be considered, or only the measurement reporting result from one or more other user equipment may be considered, or the measurement reporting results of these two types of user equipment may be considered in combination.

[0120] The measurement configuration information may be sent, for example, via RRC layer signaling measurement configuration (MeasConfig), and in response, the user equipment may place its measurement reporting result in a signaling measurement report (MeasurementReport), more specifically, in a measurement result (MeasResults) in the signaling.

[0121] As another implementation, instead of instructing the user equipment to perform measurement reporting through the above RRC layer signaling MeasConfig, the base station can also instruct the user equipment to perform measurement reporting through MAC layer signaling. Specifically, for example, the user equipment can be instructed to perform measurement reporting through a newly added MAC control unit (MAC CE), so that the user equipment receiving the instruction can report its measurement result (including current height information, etc.) through the corresponding newly added MAC CE.

[0122] Alternatively, as another implementation method, the base station can also instruct the user equipment to perform measurement reporting through physical layer signaling. Specifically, for example, the base station can instruct the user equipment to perform measurement reporting by modifying the existing downlink control information (DCI) or newly defining DCI, and the information can be transmitted on the physical downlink control channel (PDCCH). Accordingly, the user equipment receiving the instruction can carry its measurement results (including current height information, etc.) by modifying the existing uplink control information (UCI) or newly defining UCI, and the information can be transmitted on the physical uplink control channel (PUCCH).

[0123] It should be noted that although the above describes examples of using physical layer signaling, MAC layer signaling and RRC layer signaling to instruct the user equipment to perform measurement reporting, it should be understood that these signalings may also be used in combination or other signalings besides these signalings.

[0124] Then, the determination unit 102 may determine and / or update the height threshold value of the target user equipment based on the measurement report results from the target user equipment and / or other user equipment. The measurement report results include but are not limited to one or more of the location information, height information, speed information, power information and neighboring cell measurement results of the user equipment.

[0125] In addition, preferably, the determination unit 102 can also determine and / or update the height threshold value according to the environmental information that the user equipment is currently in. For example, in different areas (e.g., urban areas, suburbs, etc.), the distribution density, terrain factors, path loss and other environmental information of drones, base stations, other types of user equipment, buildings, etc. are often different, so by taking these environmental information into consideration, the height threshold value for the user equipment can be further optimized.

[0126] On the other hand, since the drone flies at a high altitude, there may be LoS between multiple base stations. Therefore, by taking the interaction between base stations into consideration, the height threshold for the optimized device can be further optimized, which is especially beneficial when the user equipment is at the edge of the cell. Figure 5 and Figure 6 An embodiment in this case will be described.

[0127] Figure 5 is a schematic diagram showing an example of a communication scenario according to an embodiment of the present disclosure.

[0128] like Figure 5 As shown, user equipment UAV2 and UAV4 are connected to base stations BS1 and BS2, respectively, and are both at the cell edge. In this case, when base station BS1 and base station BS2 determine the altitude threshold values ​​for their respective user equipment UAV2 and UAV4, information interaction can be performed first to optimize the determination and / or update of the altitude threshold values. In this way, when user equipment UAV2 and UAV4 use resources related to their respective altitude threshold values, interference can be effectively avoided.

[0129] On the other hand, information exchange between base stations is also very beneficial to the handover process. Figure 5 As shown, the user equipment UAV2 flies from the base station BS1 to the base station BS2, so it is necessary to complete the handover from the source cell to the target cell. At this time, if the base station BS1 sends the height threshold value setting information of the target cell obtained through information interaction to the user equipment UAV2 in advance, the handover delay can be reduced, the handover failure can be avoided, and the interference can be reduced. Figure 6 The signaling interaction process in this case is shown.

[0130] like Figure 6 As shown, after receiving the handover request from the base station BS1, the base station BS2 includes the height threshold value setting in its cell in the confirmation message of the handover request and sends it to the base station BS1. Through such information exchange, the base station BS1 can send the obtained height threshold value to the user equipment UAV2, so that the user equipment UAV2 can switch to the target cell by performing a random access process according to the received height threshold value setting of the target cell.

[0131] It should be understood that Figure 6 The signaling interaction process shown is only an example given to illustrate the principles of the present disclosure, and signaling and description irrelevant to the technology of the present disclosure are omitted to avoid ambiguity. It does not represent a complete actual switching process.

[0132] The above describes the factors that need to be considered when determining the height threshold value for the user equipment, but it should be understood that this is only an example and not a limitation. When actually determining, reasonable determination and update can be made based on the actual application scenario, one or more of the above factors, and other factors in addition to the above factors. For example, information interaction between user devices, etc. can also be considered.

[0133] Return to reference Figure 1 Preferably, the device 100 may also include a height threshold value configuration unit 110, which may be configured to generate configuration information including one or more determined height threshold values, and the configuration information is to be sent to the user equipment so that the user equipment performs relevant operations based on the height threshold value.

[0134] Figure 7 is a schematic diagram showing an example scenario in which a base station sends configuration information of a height threshold value to a user equipment within coverage. Figure 7 As shown, there are three user equipments UAV1, UAV2 and UAV3 within the coverage of the base station BS, so the base station can include the generated height threshold configuration information in the physical layer signaling, MAC layer signaling or RRC signaling to each user equipment. The following will describe in detail how to use these three types of signaling to configure the height threshold.

[0135] Physical layer signaling may be information carried by a physical downlink control channel (PDCCH), such as downlink control information (DCI). Specifically, the configuration information may be carried by modifying the existing DCI format (e.g., adding an index), or a new DCI format may be defined to carry the configuration information. The newly defined DCI format may be specific to the drone, or it may not be specific to the drone. An index in the newly defined DCI format may be used to indicate an altitude threshold. Table 1 below gives an example of a method for indicating an altitude threshold using an index in a DCI format (which may include one or more bits). In this example, the index includes two bits, so that four different altitude threshold settings may be indicated. It will be understood that, depending on the number of bits of the index, more different altitude threshold settings may be indicated.

[0136] Table 1

[0137]

[0138]

[0139] MAC signaling may include a MAC control unit (MAC CE). Specifically, the height threshold value may be configured by a newly added MAC CE, that is, a LCID is selected from the currently reserved logical channel IDs (LCIDs) to represent the newly added MAC CE, and a fixed one-byte (8-bit) length field may be set in the newly added MAC CE to indicate different height threshold value settings. The specific configuration method is similar to the above Table 1 and will not be described in detail here.

[0140] The RRC signaling may include a system broadcast message, an RRC connection establishment message (RRCConnectionSetup) or an RRC connection reconfiguration message (RRCConnectionReconfiguration).

[0141] Specifically, the configuration information about the height threshold value can be included in the existing system broadcast message. The system broadcast message can be broadcast periodically to avoid, for example, that a newly added user equipment cannot receive the configuration information. For example, a corresponding information element can be added to the RACH-ConfigCommon of the system information block of type SIB2 to indicate the height threshold value. Alternatively, the height threshold value can also be configured using other types of existing system information blocks or other types of system information blocks that may appear in the future, and no specific restrictions are made here. This configuration method is particularly suitable for situations where the determined height threshold value is specific to a base station or a cell, and can reduce signaling overhead.

[0142] As an application example, the preamble code and physical random access channel (PRACH) resources can be associated with the altitude threshold value. For example, if the current altitude of the drone is greater than a certain altitude threshold value, a specific set of preamble codes and PRACH resources are used for random access; and if the current altitude is lower than a certain altitude threshold value, traditional preamble codes and PRACH resources can be used for random access. In this way, after receiving the configuration information about the altitude threshold value from the base station, the drone measures its current flight altitude (for example, through GPS positioning) and then selects the appropriate preamble code and PRACH resources, thereby improving the success rate of random access and avoiding access conflicts.

[0143] Figure 8 is a flow chart showing an example of a signaling interaction process for configuring a height threshold through a system broadcast message.

[0144] like Figure 8 As shown, Figure 7The base station BS shown in FIG. 1 sends configuration information about the determined altitude threshold value to the user equipment UAV1, UAV2 and UAV3 through, for example, any type of system information block (SIB). The configuration information may arrive at each user equipment at the same time or may not arrive at the same time (e.g., Figure 8 ).

[0145] On the other hand, considering that the altitude of the drone before takeoff is not much different from that of ordinary user equipment on the ground, the configuration information of the altitude threshold value can also be sent to the drone through the RRC connection establishment message (RRCConnectionSetup). That is, the base station can send the configuration information of the altitude threshold value to the drone through the RRCConnectionSetup message in the last step of the drone's random access process.

[0146] As an application example, after the drone obtains its own altitude threshold value through the RRCConnectionSetup message from the base station, it can select the corresponding time-frequency resources to communicate with the base station according to the correspondence between the altitude threshold value and the time-frequency resources.

[0147] Fig. 9 is a flow chart showing an example of a signaling interaction process for configuring a height threshold through an RRC connection establishment message.

[0148] Fig. 9 The method for configuring the height threshold value in the random access process is shown in FIG. 1 , taking the user equipment UAV1 as an example, which is also applicable to the user equipment UAV2 and UAV3. In addition, it should be noted that the random access process is not limited to the random access process when the user equipment is turned on, but can be a random access process in any situation, such as when switching, losing synchronization, etc. Fig. 9 As shown, the user equipment UAV1 sends a random access preamble code to the base station BS, and sends an RRC connection request (RRCConnectionRequest) to the base station after receiving the random access response from the base station BS, so that after receiving the request, the base station BS includes the configuration message about the height threshold value in the RRC connection establishment message (RRCConnectionSetup) and sends it to the user equipment UAV1.

[0149] On the other hand, considering that the altitude of the drone when it just takes off is not much different from the altitude of ordinary user equipment on the ground, the configuration information of the altitude threshold value can also be sent to the drone through the RRC connection reconfiguration message (RRCConnectionReconfiguration). That is, after the drone establishes a connection with the base station, the base station can send the configuration information of the altitude threshold value to the drone through the RRCConnectionReconfiguration message.

[0150] As an application, after the drone obtains the configuration information of the height threshold value according to the received RRCConnectionReconfiguration message, it can select the corresponding time-frequency resources to communicate with the base station according to the correspondence between the height threshold value and the time-frequency resources. Preferably, when the altitude of the drone is relatively low, the altitude threshold value may not be configured for it. Instead, the configuration information of the altitude threshold value is sent to the user equipment through the RRCConnectionReconfiguration message only when the base station determines that the current altitude reported by the user equipment is higher than a specific altitude threshold value (for example, the minimum altitude threshold value among one or more altitude threshold values).

[0151] It should be noted that, as mentioned above, the altitude threshold value for the UAV can be dynamically updated based on environmental information, measurement reporting information of the user equipment, interaction between base stations, etc. Therefore, by utilizing the RRCConnectionReconfiguration message, the configuration information about the updated altitude threshold value can be notified to the UAV.

[0152] Fig.10 is a flow chart showing an example of a signaling interaction process for configuring a height threshold value through an RRC connection reconfiguration message.

[0153] Fig.10 The flowchart shown is similar to Fig. 9 The difference between the flowchart shown is that in Fig.10 In the process, after receiving the RRC connection setup completion message (RRCConnectionSetupComplete) from the user equipment UAV1, the base station BS sends the configuration message of the height threshold value to the user equipment UAV1 through the RRCConnectionReconfiguration message, and after successfully receiving the RRCConnectionReconfiguration message, the user equipment UAV1 feeds back an RRC connection reconfiguration completion (RRCConnectionReconfigurationComplete) message to the base station BS to indicate that the RRC connection reconfiguration process is completed.

[0154] It should be understood that the above reference Figures 8 to 10 The described signaling interaction process of notifying the configuration information of the height threshold value through RRC layer signaling is only an example, and illustrations and descriptions not related to the technology of the present disclosure are omitted to avoid ambiguity. Those skilled in the art can make appropriate modifications to the above-mentioned signaling interaction process according to actual conditions, and such modifications should be considered to fall within the scope of the present disclosure.

[0155] In addition, it should be pointed out that although the above describes examples of using physical layer signaling, MAC layer signaling and RRC layer signaling to notify configuration information about the height threshold value, it should be understood that these signalings can also be combined or other signaling besides these signalings can be used for notification.

[0156] The above describes the process of determining, configuring, and updating one or more altitude threshold values ​​for a user device, but it should be understood that this is based on the assumption that the user device is a drone (or has drone communication capabilities) and is allowed to access the current network. For user devices that do not have drone communication capabilities or are not allowed to access the current network, the base station does not need to configure an altitude threshold value for them. Therefore, in fact, before configuring an altitude threshold value for a user device, the user device should first be authenticated (i.e., confirm whether it has drone communication capabilities) and authorized (i.e., confirm whether it is allowed to access the current network). The following will refer to Fig.11 This embodiment is described in detail.

[0157] Fig.11 : is a block diagram showing another configuration example of the device on the base station side in the wireless communication system according to the first embodiment of the present disclosure.

[0158] like Fig.11 As shown, the apparatus 200 according to this embodiment includes an authentication unit 202, an authentication unit 204 and a determination unit 206. The functional configuration example of the determination unit 206 is the same as that of the above reference Figures 1 to 10 The functional configuration examples of the determination unit 102 described are basically the same, and the detailed description will not be repeated here. Only the functional configuration examples of the authentication unit 202 and the authentication unit 204 will be described in detail below.

[0159] The authentication unit 202 may be configured to determine whether the user equipment has the drone communication capability based on the user equipment related information from the user equipment. The relevant contents of the user equipment related information (including the acquisition process, the included information, etc.) may refer to the description of the corresponding position above, for example, refer to Figure 3 and Figure 4The described UEAssistanceInformation and UECapabilityInformation or UECategory 13 are not repeated here.

[0160] The authentication unit 204 can be configured to request a core network device (e.g., a Mobility Management Entity (MME) and / or a Home Subscriber Server (HSS)) to confirm whether the user equipment is allowed to legally use the current network when it is determined that the user equipment has drone communication capabilities.

[0161] Specifically, for example, the authentication process can be completed in the attachment process (Attach Procedure) of the user equipment. Fig.12 The flowchart shown describes the process in detail.

[0162] Fig.12 is a flowchart illustrating an example of a signaling interaction process of an authentication process according to an embodiment of the present disclosure.

[0163] like Fig.12 As shown, for a user equipment UAV determined to have drone communication capabilities, the base station BS, after receiving its attachment request (including the identity information of the user equipment, for example, the International Mobile Equipment Identity, IMEI, can be used), forwards the attachment request to the core network device, and the core network device authenticates the user equipment based on the identity information of the user equipment included in the attachment request, that is, confirms whether the user equipment is allowed to legally use the current network.

[0164] After confirming the identity information of the user equipment, the core network device sends an attachment acceptance message to the base station BS to indicate that the user equipment is allowed to legally use the current network. After receiving the confirmation message, the base station BS sends an RRCConnectionReconfiguration message to the user equipment UAV to notify that it is allowed to attach. Preferably, as described above, the RRCConnectionReconfiguration message can also include configuration information for the height threshold value of the user equipment.

[0165] After successfully receiving the RRCConnectionReconfiguration message, the user equipment UAV feeds back an RRCConnectionReconfigurationComplete message to the base station, so that the base station sends an attachment completion message to the core network device to indicate that the attachment process of the user equipment UAV is completed.

[0166] It should be understood that reference is made here to Fig.12 The signaling interaction process of authenticating the user equipment through the attachment process is only for illustrating the principle of the present disclosure and does not constitute any limitation. Those skilled in the art may also authenticate the user equipment through other appropriate processes to confirm whether the user equipment can legally access the current network.

[0167] It should be noted that the above reference Figure 1 and Fig.11 The various functional units described are only logical modules divided according to the specific functions they implement, and are not used to limit the specific implementation methods. In actual implementation, the above-mentioned various functional units and modules can be implemented as independent physical entities, or can also be implemented by a single entity (for example, a processor (CPU or DSP, etc.), an integrated circuit, etc.).

[0168] In addition, it should be noted that the above reference Figure 1 and Fig.11 The described devices 100 and 200 can be implemented at the chip level, or can also be implemented at the device level by including other external components. For example, the devices 100 and 200 can also work as the base station itself, and can include a communication unit (optionally, shown in a dotted box) for performing communication operations. For example, the communication unit can be used to perform communication with user equipment, communication with other base stations, communication with core network equipment, etc. In addition, it should be pointed out that the specific implementation form of the communication unit is not limited here, and it may include one or more communication interfaces to achieve communication with different external devices.

[0169] (1-2. Configuration example of user device)

[0170] Corresponding to the above-mentioned configuration example of the base station side, a configuration example of the user equipment side will be described below.

[0171] Only when the user equipment is within the coverage of the base station, the base station can determine, configure and update the height threshold value for the user equipment, and when the user equipment is outside the coverage of the base station, the base station cannot directly determine, configure and update the height threshold value for the user equipment. Therefore, in the following description, the configuration examples for the user equipment within the coverage and the user equipment outside the coverage will be described respectively.

[0172] (1-2-1. Configuration example of user equipment within coverage)

[0173] The following will refer to Fig.13 A configuration example of a user equipment within coverage is described in detail. Fig.13 : is a block diagram showing a configuration example of an apparatus on the user equipment side in a wireless communication system according to the first embodiment of the present disclosure.

[0174] like Fig.13 As shown, the apparatus 300 according to this embodiment may include an acquisition unit 302. The acquisition unit 302 may be configured to acquire one or more height threshold values ​​for the user equipment where the apparatus 300 is located based on configuration information from the base station. The one or more height threshold values ​​are determined by the base station based on at least one of base station related information, cell related information, and user equipment related information.

[0175] Specifically, for example, the acquisition unit 302 may acquire the height threshold value information for the user equipment according to the indication of the relevant information element or field in the physical layer signaling (e.g., DCI), MAC layer signaling (e.g., MAC CE) or RRC layer signaling (e.g., SIB, RRCConnectionSetup or RRCConnectionReconfiguration) from the base station. For specific information on how to acquire the height threshold value information according to the information element or field in the corresponding signaling, please refer to the description of the corresponding position in the above embodiment of the base station side, which will not be repeated here.

[0176] Preferably, the apparatus 300 may further include a feedback unit 304. The feedback unit 304 may be configured to actively or in response to a query from the base station to feed back relevant information of the user equipment, so that the base station can determine one or more altitude thresholds for the user equipment and / or determine whether the user equipment has drone communication capability (i.e., authenticate the user equipment) before performing an altitude threshold.

[0177] As an example, the feedback unit 304 may actively feedback auxiliary information related to the user equipment (including but not limited to capability information, communication parameters, etc.) to the base station through, for example, the above-mentioned UEAssistanceInformation message. As another example, the feedback unit 304 may respond to the capability query request (UECapabilityEnquiry) of the base station and feedback its capability information, communication parameters, etc. to the base station through UECapabilityInformation. As another example, the feedback unit 304 may actively or in response to the query of the base station and feedback category information indicating the device category of the user equipment to the base station (for example, the above-mentioned UECategory 13). All of this feedback information can be used as relevant information of the user equipment for the base station to determine the height threshold value and / or authenticate the user equipment. For the specific feedback process, please refer to the description of the corresponding position in the above base station embodiment, which will not be repeated here.

[0178] Preferably, the device 300 may also include a request unit 306, which may be configured to make a request to the base station when the base station determines that the user equipment has the drone communication capability based on the relevant information fed back by the feedback unit 304 (for example, the attachment request during the attachment process may include the identity information of the user equipment), so that after receiving the request, the base station continues to request the core network device to confirm whether the user equipment is allowed to legally use the current network (that is, authenticate the user equipment). After the core network device confirms the legal identity of the user equipment (that is, it can legally use the current network), the device 300 can perform an attachment operation on the current network. For the specific authentication process, please refer to the description of the corresponding position in the above base station embodiment, which will not be repeated here.

[0179] Preferably, the device 300 may also include a measurement reporting unit 308, which may be configured to perform measurement reporting periodically, non-periodically, or based on event triggering according to measurement configuration information from the base station, so that the base station can determine and / or update the height threshold value according to the result of its measurement reporting. The measurement reporting result may be carried in MeasurementReport as RRC layer signaling, a newly added MAC CE as MAC layer signaling, and / or UCI as physical layer signaling and reported to the base station. The specific process of performing measurement reporting based on measurement configuration information can refer to the description of the corresponding position in the above base station embodiment, which will not be repeated here.

[0180] In addition, preferably, in some cases, if there is a connection between the user equipment within the coverage and the user equipment outside the coverage, the user equipment within the coverage can assist in determining the height threshold value of the remote user equipment (i.e., the user equipment outside the coverage) or relay the configuration information about the height threshold value from the base station to the remote user equipment. Fig.14 The communication scenario example shown is used to describe the embodiments in this case. Fig.14 is a schematic diagram showing another communication scenario example according to an embodiment of the present disclosure.

[0181] like Fig.14 As shown, both the user equipment UAV4 and UAV5 outside the coverage are connected to the user equipment UAV2 within the coverage. Since the user equipment UAV4 and the user equipment UAV5 cannot receive the altitude threshold configuration information from the base station, they can send a request (e.g., a broadcast request or a multicast request) to the surrounding user equipment to obtain the altitude threshold configuration information, so that the user equipment UAV2 within the coverage connected thereto can determine, configure and / or update the altitude threshold values ​​of the user equipment UAV4 and UAV5 according to the configuration information received from the base station or independently after receiving the request.

[0182] Return to reference Fig.13 Preferably, the device 300 may also include a configuration unit 310, which may be configured to respond to requests from surrounding user equipment, based on the altitude threshold configuration information from the base station, and in combination with relevant information of the out-of-coverage user equipment (including its battery life, operating frequency, transmission power, flight altitude / speed, etc.), determine and / or update the altitude threshold value of the surrounding user equipment, and send the determined altitude threshold value to the surrounding user equipment.

[0183] As another preferred example, the request from the surrounding user equipment may also include its resource request, so that the configuration unit 310 can configure a reasonable height threshold for the surrounding user equipment that issues the request in combination with the resource request.

[0184] Alternatively, for some user equipments with relatively weak capabilities, the configuration unit 310 may simply relay the height threshold configuration information received from the base station to the surrounding user equipments that have issued the request without making any changes.

[0185] In addition, for some user equipments with very strong capabilities, the configuration unit 310 may not refer to the height threshold configuration information of the base station, but independently configure the height threshold based on the relevant information of the surrounding user equipments known by itself.

[0186] It should be understood that reference is made here to Fig.13 and Fig.14The configuration example of the user equipment end within the coverage described corresponds to the configuration example of the base station end described above, so the content not described in detail here can refer to the description of the corresponding position above and will not be repeated here.

[0187] (1-2-2. Configuration example of out-of-coverage user equipment)

[0188] Fig.15 is a block diagram showing another configuration example of an apparatus at a user equipment end in a wireless communication system according to the first embodiment of the present disclosure. The user equipment corresponds to Fig.14 User devices UAV4 and UAV5 in the communication scenario example shown.

[0189] like Fig.15 As shown, the apparatus 400 according to this embodiment may include an acquisition unit 402, which may be configured to acquire one or more height threshold values ​​for the user equipment where the apparatus 400 is located based on pre-configuration information or indirectly based on configuration information from a base station.

[0190] It should be noted that for the user equipment outside the coverage, its height threshold value is at least preconfigurable, for example, it can be pre-stored in the memory of the user equipment by the manufacturer when manufacturing the user equipment. In this way, when the user equipment cannot obtain the height threshold value configuration information from the base station, the acquisition unit 402 can read the relevant pre-configuration information from the memory of the user equipment to obtain the pre-configured height threshold value for the user equipment.

[0191] Preferably, the apparatus 400 may further include a request unit 404, which may be configured to send a request when the user equipment where the apparatus 400 is located is connected to other user equipments within coverage, so that the user equipment within coverage that receives the request may determine and / or update the height threshold value of the user equipment based on the configuration information from the base station, or relay the configuration information from the base station. Fig.14 In the communication scenario example shown, the out-of-coverage user equipment UAV4 and UAV5 can send a request to the in-coverage user equipment UAV2 connected to them, and receive from the user equipment UAV2 a height threshold value configured by the base station or configured by the user equipment UAV2.

[0192] Preferably, the request sent by the request unit 404 to other user equipments may include its own resource request, so that if the user equipment within the coverage receiving the request has strong capabilities, a reasonable height threshold value may be set according to its resource request.

[0193] It should be noted that the above reference Fig.13 and Fig.15The various functional units described are only logical modules divided according to the specific functions they implement, and are not used to limit the specific implementation methods. In actual implementation, the above-mentioned various functional units and modules can be implemented as independent physical entities, or can also be implemented by a single entity (for example, a processor (CPU or DSP, etc.), an integrated circuit, etc.).

[0194] In addition, it should be noted that the above reference Fig.13 and Fig.15 The described apparatuses 300 and 400 may be implemented at the chip level, or may be implemented at the device level by including other external components. For example, the apparatuses 300 and 400 may also work as user equipment itself, and may include a communication unit (optionally, shown in a dotted box) for performing communication operations. For example, the communication unit may be used to perform communication with a base station, communication with other user equipment, and the like. In addition, it should be noted that the specific implementation form of the communication unit is not limited here, and it may include one or more communication interfaces to implement communication with different external devices.

[0195] (1-3. Configuration example of core network)

[0196] Fig.16 1 is a block diagram showing a configuration example of an apparatus of a core network side in a wireless communication system according to the first embodiment of the present disclosure.

[0197] like Fig.16 As shown, the apparatus 500 according to this embodiment may include a confirmation unit 502, which may be configured to confirm whether the user equipment is allowed to use the current network in response to a request from the base station (for example, an attachment request received from the user equipment during the above-mentioned attachment process). The user equipment is a user equipment determined by the base station as having drone communication capability. Specifically, the confirmation unit 502 may confirm whether the user equipment can legally access the current network based on the identity information of the user equipment included in the received request (for example, IMEI).

[0198] Then, the confirmation result of the confirmation unit 502 (for example, the message "Attach Accept" in the above-mentioned attachment process) can be sent to the base station, so that the device at the base station end can determine, configure and update one or more height threshold values ​​of the user equipment according to the confirmation result.

[0199] In addition, the confirmation result is also sent to the user equipment via the base station, so that the user equipment can complete the attachment (or access) to the current network according to the received confirmation result.

[0200] For other specific descriptions of the authentication process for the user equipment, please refer to the descriptions of the corresponding positions in the above base station embodiment, which will not be repeated here.

[0201] Similarly, it can be understood that here reference Fig.16 The various functional units described are only logical modules divided according to the specific functions they implement, and are not used to limit the specific implementation methods. In actual implementation, the above-mentioned various functional units and modules can be implemented as independent physical entities, or can also be implemented by a single entity (for example, a processor (CPU or DSP, etc.), an integrated circuit, etc.).

[0202] In addition, it should be noted that the reference here Fig.16 The described apparatus 500 may be implemented at the chip level, or may be implemented at the device level by including other external components. For example, the apparatus 500 may also include a communication unit (optionally, shown in a dotted box) for performing communication operations. For example, the communication unit may be used to perform communication with a base station, etc. In addition, it should be noted that the specific implementation form of the communication unit is not limited here, and it may include one or more communication interfaces to implement communication with different external devices.

[0203] In addition, it should be noted that although the above describes the device embodiments of the present disclosure (including the device at the base station end, the device at the user equipment end, and the device at the core network end) with reference to the block diagram shown in the accompanying drawings, this is only an example and not a limitation. Those skilled in the art can modify the functional configuration examples shown according to the principles of the present disclosure, for example, add, delete, modify, combine, etc., the various functional modules therein, and all such variations should be considered to fall within the scope of the present disclosure.

[0204] (1-4. Method Example)

[0205] Corresponding to the above device embodiments, the following method embodiments are also disclosed. Figures 17 to 20 A method embodiment according to the present disclosure is briefly described.

[0206] Fig.17 1 is a flowchart showing an example of a process of a method at a base station side in a wireless communication system according to the first embodiment of the present disclosure.

[0207] like Fig.17 As shown, the method according to this embodiment starts at step S601. In step S601, one or more of base station related information, cell related information and user equipment related information is obtained.

[0208] Then, the method proceeds to step S602. In step S602, one or more height thresholds for the user equipment are determined based on one or more of the acquired base station related information, cell related information and user equipment related information.

[0209] It should be noted that the method embodiment described here corresponds to the embodiment of the base station-side device described above. Therefore, for the contents not described in detail here, please refer to the description of the corresponding position above and will not be repeated here.

[0210] Fig.18 is a flowchart showing an example of a process of a method at a user equipment side in a wireless communication system according to the first embodiment of the present disclosure.

[0211] like Fig.18 As shown, the method according to this embodiment starts at step S701. In step S701, configuration information from a base station is obtained. The configuration information may be included in physical layer signaling, MAC layer signaling, or RRC layer signaling.

[0212] Then, the method proceeds to step S702. In step S702, one or more height threshold values ​​for the user equipment are determined based on the acquired configuration information.

[0213] It should be noted that the method embodiment described here corresponds to the device embodiment of the user equipment end within the coverage described above. Therefore, the content not described in detail here can be found in the description of the corresponding position above and will not be repeated here.

[0214] Fig.19 is a flowchart showing another process example of the method at the user equipment side in the wireless communication system according to the first embodiment of the present disclosure.

[0215] like Fig.19 As shown, the method according to this embodiment starts at step S801. In step S801, pre-configuration information or configuration information indirectly from a base station is acquired.

[0216] Then, the method proceeds to step S802. In step S802, one or more height thresholds for the user equipment are determined based on pre-configuration information or configuration information indirectly from the base station.

[0217] It should be noted that the method embodiment described here corresponds to the device embodiment of the user equipment end outside the coverage described above. Therefore, for the content not described in detail here, please refer to the description of the corresponding position above and it will not be repeated here.

[0218] Fig. 20 is a flowchart showing an example of a process of a method of a core network terminal in a wireless communication system according to the first embodiment of the present disclosure.

[0219] like Fig. 20As shown, the method according to this embodiment starts at step S901. In step S901, in response to a request from a base station, it is confirmed whether a user equipment is allowed to use the current network, and the user equipment is a user equipment determined by the base station to have drone communication capability.

[0220] Then, the method proceeds to step S902. In step S902, the confirmation result is sent to the base station, so that the base station forwards it to the user equipment to complete the attachment operation to the current network, and / or for the base station to determine the height threshold value for the user equipment.

[0221] It should be noted that the method embodiment described here corresponds to the device embodiment of the core network described above. Therefore, for the contents not described in detail here, please refer to the description of the corresponding position above and will not be repeated here.

[0222] In addition, it should be understood that the above Figures 17 to 20 The flowchart shown is only an example and not a limitation. Those skilled in the art may modify the processing flow example shown in accordance with the principles of the present disclosure, for example, by adding, deleting, modifying, combining, etc., the various steps therein, and all such variations should be considered to fall within the scope of the present disclosure.

[0223] According to the first embodiment of the present disclosure, it is possible to reasonably determine, configure and update one or more altitude threshold values ​​for user equipment, and the altitude threshold value is an important factor for implementing and optimizing various application scenarios (e.g., configuration of working modes, resource allocation, etc.) in LTE-based drone communications. In addition, the authentication and authorization operations for user equipment in drone communications are also described.

[0224] In the following description, an example application scenario of the altitude threshold in UAV communication will be given.

[0225] It should be pointed out here that in the application examples based on altitude threshold values ​​described below, the altitude threshold values ​​may be determined according to the above-mentioned technology of the present disclosure, may be pre-configured, or may be determined according to other technologies in addition to the above-mentioned technology. The present disclosure does not impose specific restrictions on this, but only focuses on how to apply altitude threshold values ​​to solve relevant problems in drone communications.

[0226] In addition, it should be noted that the application examples described below are all for user devices that have drone communication capabilities and are allowed to legally use the current network (i.e., have passed the authentication process and authorization process).

[0227] [2. Second embodiment (operating mode configuration based on height threshold value)]

[0228] When the drone does not take off or flies at a low altitude (relative to the base station altitude), it is not much different from ordinary user equipment on the ground, so it can work in a working mode similar to that of ordinary user equipment. Here, the working mode of the drone when flying at an altitude below a certain altitude threshold value can be referred to as "hovering mode". However, when the drone flies at a higher altitude, the so-called low-altitude mode cannot meet the communication needs of the drone, so in this case the drone will preferably work in another working mode different from the above-mentioned low-altitude mode. Here, the working mode of the drone when flying at an altitude above a certain altitude threshold value can be referred to as "flying mode".

[0229] Therefore, it is possible to consider judging the working mode of the drone based on the altitude threshold, which can help assist in resource allocation, eliminate interference, assist in switching, etc.

[0230] (2-1. Configuration example of base station side)

[0231] Fig.21 : is a block diagram showing a configuration example of a device on the base station side in a wireless communication system according to the second embodiment of the present disclosure.

[0232] like Fig.21 As shown, the apparatus 1000 according to this embodiment may include an operation configuration unit 1002. The operation configuration unit 1002 may be configured to directly or indirectly configure the operation of the user equipment based on one or more altitude thresholds for the user equipment and the current altitude of the user equipment.

[0233] As an example, the base station may instruct the user equipment to turn on or off the air flight mode or apply operations in the corresponding mode based on the altitude information and altitude threshold information reported by the user equipment.

[0234] Preferably, the apparatus 1000 may further include a measurement configuration unit 1004, which may be configured to generate measurement configuration information for the user equipment, so that the user equipment reports information related to its current height according to the measurement configuration information. The specific measurement reporting process is similar to the measurement reporting process described in the first embodiment above, and will not be repeated here.

[0235] Then, the operation configuration unit 1002 can determine whether the current altitude of the user equipment is higher than the minimum altitude threshold value among the one or more altitude threshold values ​​according to the altitude information reported by the user equipment based on the measurement configuration information of the measurement configuration unit 1004, and instruct the user equipment to turn on or off the air flight mode according to the determination result. Specifically, for example, if it is determined that the current altitude is higher than the minimum altitude threshold value, the user equipment is instructed to turn on the air flight mode, otherwise, the user equipment is instructed to turn off the air flight mode.

[0236] Alternatively, the user equipment may also actively turn on or off the air flight mode according to the relationship between the current altitude and the altitude threshold value. For example, when the user equipment determines that the current altitude is higher than the minimum altitude threshold value, the air flight mode is actively turned on, otherwise the air flight mode is actively turned off, and the altitude information at this time is reported to the base station. In this way, the operation configuration unit 1002 in the device at the base station side knows that the user equipment has turned on the air flight mode based on the received altitude information, if it is found that the current altitude is higher than the minimum altitude threshold value, so that the relevant operations in the air flight mode (for example, resource allocation, interference coordination, switching, etc. in the air flight mode) can be applied to the user equipment. On the contrary, if it is found that the current altitude is lower than or equal to the minimum altitude threshold value, it is known that the user equipment has turned off the air flight mode, so that the relevant operations in the low altitude mode can be applied to the user equipment.

[0237] Fig. 22 is a flowchart showing an example of the signaling interaction process in this example case.

[0238] like Fig. 22 As shown, the base station sends the measurement configuration information to the user equipment UAV through, for example, a MeasConfig message, so that the user equipment UAV reports its altitude information periodically, aperiodically, or based on event triggering (for example, reporting only when the current altitude is found to be higher than the minimum altitude threshold value to reduce signaling overhead) according to the received measurement configuration information. Then, based on the received altitude information, the base station instructs the user equipment to turn on or off the air flight mode, or applies related operations in the air flight mode or low-altitude mode to the user equipment (corresponding to the case where the user equipment actively turns on / off the air flight mode).

[0239] Alternatively, as another example, the user equipment may not directly report the information about the current altitude to the base station, but the user equipment may determine whether to turn on or off the air flight mode based on the current altitude and altitude threshold information and send a request to the base station based on the determination result, so that the base station configures the operation of the user equipment based on the received request.

[0240] Specifically, the operation configuration unit 1002 may, in response to a request sent by the user device when its current altitude is higher than the minimum altitude threshold value, instruct the user device to turn on the air flight mode or apply the relevant operations in the air flight mode to the user device (corresponding to the case where the user device actively turns on the flight mode). On the other hand, the operation configuration unit 1002 may, in response to a request sent by the user device when its current altitude is lower than or equal to the minimum altitude threshold value, instruct the user device to turn off the air flight mode or apply the relevant operations in the low altitude mode to the user device (corresponding to the case where the user device actively turns off the flight mode).

[0241] Fig.23 is a flow chart showing the signaling interaction process in this example case.

[0242] like Fig.23 As shown, the user equipment UAV can obtain the current altitude through, for example, GPS positioning, and then send a request to the base station BS when it is determined that the current altitude is higher than the minimum altitude threshold. After receiving the request, the base station BS instructs the user equipment to turn on the air flight mode or applies related operations in the air flight mode to the user equipment. When the user equipment UAV determines that the current altitude is lower than or equal to the minimum altitude threshold, it sends a request to the base station BS again, so that the base station BS can instruct the user equipment to turn off the air flight mode or apply related operations in the low altitude mode to the user equipment according to the received request.

[0243] It should be understood that Fig. 22 and Fig.23 The signaling interaction process example shown is only for illustrating the principles of the present disclosure and does not constitute any limitation. Illustrations and descriptions not related to the technology of the present disclosure are omitted to avoid ambiguity. Those skilled in the art can make appropriate modifications to the signaling interaction process based on the principles of the present disclosure.

[0244] It should be noted that although the minimum altitude threshold value is used as the judgment criterion for switching between the aerial flight mode and the low-altitude mode in the above example, it should be understood that, depending on the actual situation, the judgment criterion can also be set to a value larger or smaller than the minimum altitude threshold value.

[0245] In addition, it should be noted that the above reference Fig.21The described apparatus 1000 may be implemented at the chip level, or may be implemented at the device level by including other external components. For example, the apparatus 1000 may also operate as a base station itself, and may include a communication unit (optionally, shown in a dotted box) for performing communication operations. For example, the communication unit may be used to perform communication with user equipment, communication with other base stations, communication with core network equipment, and the like. In addition, it should be noted that the specific implementation form of the communication unit is not limited here, and it may include one or more communication interfaces to implement communication with different external devices.

[0246] (2-2. Configuration example of user device)

[0247] Corresponding to the above-mentioned configuration example of the base station side, a configuration example of the user equipment side will be described below. Fig.24 is a block diagram showing a configuration example of a user equipment side in a wireless communication system according to a second embodiment of the present disclosure.

[0248] like Fig.24 As shown, the apparatus 1100 according to this embodiment may include an information generating unit 1102. The information generating unit 1102 may be configured to generate information directly or indirectly related to the current height of the user equipment, and the information may be sent to the base station so that the base station configures the operation of the user equipment based on the information and one or more height thresholds for the user equipment.

[0249] Specifically, as an example, the information generation unit 1102 may be configured to generate a measurement report including its current height periodically, non-periodically or based on an event trigger according to measurement configuration information from the base station, as information directly related to the current height of the user equipment.

[0250] In this way, the base station can instruct the user equipment to turn on or off the air flight mode based on the received altitude information and one or more altitude threshold values ​​for the user equipment, or apply related operations in the air flight mode or low-altitude mode to the user equipment (corresponding to the situation where the user equipment actively turns on or off the air flight mode).

[0251] Alternatively, as another example, the information generating unit 1102 may be configured to generate a request for an air flight mode and a low altitude mode as information indirectly related to the current altitude of the user equipment based on its current altitude and one or more altitude thresholds for the user equipment. The request may indicate that the user equipment needs to turn on or off the air flight mode at this time, or may indicate that the user equipment has turned on or off the air flight mode and thus requests the base station to apply the operation in the corresponding mode to it.

[0252] Specifically, the information generation unit 1102 can generate a request for turning on the air flight mode or applying operations under the air flight mode when the current altitude is higher than the minimum altitude threshold value, and generate a request for turning off the air flight mode or applying operations under the low altitude mode when the current altitude is lower than or equal to the minimum altitude threshold value.

[0253] Preferably, the device 1100 may also include a control unit 1104, which may be configured to turn on or off the air flight mode of the user equipment in response to an instruction from a base station. The instruction of the base station may be made based on the received altitude information or may be made based on a request from the user equipment.

[0254] Alternatively, the control unit 1104 may also be configured to actively turn on or off the air flight mode of the user equipment according to the relationship between the current altitude and the minimum altitude threshold.

[0255] It should be understood that there is no need to distinguish whether the user equipment is within the coverage of the base station. Specifically, for the user equipment within the coverage, it can use the configuration information about the height threshold value received from the base station, and for the user equipment outside the coverage, it can use the pre-configured height threshold value or the height threshold value forwarded or configured by other user equipment. In other words, in this application example, neither the method for determining the height threshold value nor the method for obtaining the height threshold value is limited.

[0256] It should be noted that the configuration example of the user equipment side described here is the same as the above reference Figure 21 to Figure 23 The configuration example of the base station described here corresponds to that of the base station, so the contents not described in detail here can be found in the description of the corresponding position above and will not be repeated here.

[0257] In addition, it should be noted that the above reference Fig.24 The described apparatus 1100 may be implemented at the chip level, or may be implemented at the device level by including other external components. For example, the apparatus 1100 may also work as a user device itself, and may include a communication unit (optionally, shown in a dotted box) for performing communication operations. For example, the communication unit may be used to perform communication with other user devices, communication with a base station, and the like. In addition, it should be noted that the specific implementation form of the communication unit is not limited here, and it may include one or more communication interfaces to implement communication with different external devices.

[0258] Understandably, here is the reference Fig.21 and 24The various functional units described are only logical modules divided according to the specific functions they implement, and are not used to limit the specific implementation methods. In actual implementation, the above-mentioned various functional units and modules can be implemented as independent physical entities, or can also be implemented by a single entity (for example, a processor (CPU or DSP, etc.), an integrated circuit, etc.).

[0259] In addition, it should be noted that although the device embodiments of the present disclosure (including the device at the base station end and the device at the user equipment end) are described above with reference to the block diagrams shown in the accompanying drawings, this is only an example and not a limitation. Those skilled in the art can modify the functional configuration examples shown according to the principles of the present disclosure, for example, add, delete, modify, combine, etc., the various functional modules therein, and all such variations should be considered to fall within the scope of the present disclosure.

[0260] (2-3. Method Example)

[0261] Corresponding to the above-mentioned device embodiment, a method embodiment according to the present disclosure will be described below.

[0262] Fig.25 : is a flowchart showing an example of a process of a method at a base station side in a wireless communication system according to the second embodiment of the present disclosure.

[0263] like Fig.25 As shown, the method according to this embodiment starts at step S1201. In step S1201, information directly or indirectly related to the current height of the user equipment is obtained, which may be height information reported by the user equipment according to measurement configuration information or a request issued by the user equipment according to its current height and height threshold.

[0264] Then, the method proceeds to step S1202. In step S1202, the operation of the user equipment is configured according to the received information and the altitude threshold value for the user equipment, for example, instructing the user equipment to turn on or off the air flight mode, or to apply the operation in the air flight mode or the low altitude mode to the user equipment.

[0265] It should be noted that the method embodiments described here are similar to those described above with reference to Fig.21 The description corresponds to the device embodiment of the base station end, so the contents not described in detail here can refer to the description of the corresponding position above and will not be repeated here.

[0266] Fig.26 is a flowchart showing an example of a process of a method at a user equipment side in a wireless communication system according to the second embodiment of the present disclosure.

[0267] like Fig.26As shown, the method according to this embodiment starts at step S1301. In step S1301, the current height of the user equipment is obtained.

[0268] Then, the method proceeds to step S1302. In step S1302, information directly or indirectly related to the current altitude is generated, and the information may be the current altitude itself or a request issued by the user equipment according to the current altitude. The information is sent to the base station so that the base station configures the operation of the user equipment according to the information and the altitude threshold.

[0269] It should be noted that the method embodiments described here are similar to those described above with reference to Fig.24 The description corresponds to the device embodiment of the user equipment end, so the content not described in detail here can refer to the description of the corresponding position above and will not be repeated here.

[0270] In addition, it should be understood that the above Fig.25 and Fig.26 The flowchart shown is only an example and not a limitation. Those skilled in the art may modify the processing flow example shown in accordance with the principles of the present disclosure, for example, by adding, deleting, modifying, combining, etc., the various steps therein, and all such variations should be considered to fall within the scope of the present disclosure.

[0271] According to the above-mentioned second embodiment of the present disclosure, configuring the working mode of the user equipment or applying the operations in the corresponding working mode based on the altitude information and altitude threshold value of the user equipment is beneficial to optimizing related operations in the UAV communication scenario (for example, resource allocation, interference coordination, etc.).

[0272] [3. Third embodiment (resource allocation based on height threshold)]

[0273] As mentioned above, for drones before takeoff or at low altitudes, they are not much different from ordinary user devices on the ground, so they can be regarded as ordinary user devices and resource allocation is performed using the existing resource allocation method. However, when the drone flies at a higher altitude, the existing resource allocation method may no longer meet the requirements of the communication scenario, for example, there are problems such as low resource utilization efficiency and large interference. Therefore, it is necessary to provide a resource allocation solution for drone communication scenarios.

[0274] Fig. 27 : is a block diagram showing a configuration example of a device on the base station side in a wireless communication system according to the third embodiment of the present disclosure.

[0275] like Fig. 27 As shown, the device 1400 according to this embodiment may include a height information acquiring unit 1402 and a resource allocating unit 1404 .

[0276] Specifically, the height information acquisition unit 1402 may be configured to acquire at least height information of one or more user equipments. Preferably, the height information of the user equipment may be acquired from a measurement report from the user equipment (a measurement result reported based on a measurement configuration of a base station), a newly added MAC CE, uplink control information (UCI) or channel status information (CSI).

[0277] The manner of generating a measurement report including the current height of the user equipment based on the measurement configuration of the base station can be referred to the relevant description in the above first embodiment and the second embodiment, which will not be repeated here.

[0278] Regarding the use of UCI to carry altitude information, one or more bits can be added to the existing UCI format. In this way, when the user equipment makes an uplink scheduling request to the base station, its altitude information can be sent to the base station so that the base station can perform more accurate resource scheduling. Preferably, as an example, in order to reduce the transmission load on the PUCCH, the user equipment can also first quantize its current altitude, and look up the table according to the quantization result to obtain the corresponding bit information representing the current altitude. In this way, the altitude information acquisition unit 1402 at the base station end can look up the table according to the received bit information to determine the current altitude of the user equipment.

[0279] On the other hand, the higher the flight altitude, the greater the path loss, and thus the worse the channel quality. In other words, in fact, there is a certain correlation between the flight altitude and the channel state information CSI. Therefore, the altitude information acquisition unit 1402 at the base station can also determine the current altitude of the user equipment according to the received CSI, for example, by looking up a table.

[0280] In addition, preferably, in order to reduce communication load and processing load, the user equipment can also be configured to report altitude information only when it finds that its current altitude is greater than a certain threshold (for example, a minimum altitude threshold value) and the current resource allocation method can no longer meet its communication needs.

[0281] It should be understood that the above-mentioned method for obtaining the height information is only a preferred example and not a limitation. Those skilled in the art may also adopt other methods in the art to obtain the height information of the user equipment. For example, the base station directly locates the user equipment through triangulation technology, etc. No specific limitation is made here.

[0282] The resource allocation unit 1404 may be configured to allocate resources to each user equipment based on the altitude information and the altitude threshold of the user equipment.

[0283] Preferably, the apparatus 1400 may further include a resource allocation information generating unit 1406. The resource allocation information generating unit 1406 may be configured to generate information including the allocated time-frequency resources to send to the user equipment. Preferably, the resource allocation information may be included in an uplink scheduling grant signaling (UL grant) or a downlink control information (Downlink Control Information, DCI) sent to the user equipment.

[0284] The resource allocation unit 1404 may be configured to switch between the traditional resource allocation method and the height-based resource allocation method for each user equipment based on the relationship between the current height of the user equipment and the minimum height threshold value. Specifically, if the current height is higher than the minimum height threshold value, the resource allocation is performed in the height-based resource allocation method; conversely, if the current height is lower than or equal to the minimum height threshold value, the drone may be regarded as an ordinary user equipment and the resource allocation is performed in the traditional resource allocation method.

[0285] Fig.28 is a flowchart illustrating an example of a signaling interaction process of a resource allocation scheme according to an embodiment of the present disclosure.

[0286] like Fig.28 As shown, when the user equipment UAV needs to schedule resources, it sends an uplink scheduling request (SR) or a buffer status report (BSR) to the base station BS, and reports its altitude information at the same time. After receiving this information, the base station BS allocates time-frequency resources to the user equipment based on the altitude information and altitude threshold, and notifies the user equipment UAV of the allocated resources through signaling UL grant. Then, the user equipment UAV can transmit data on the time-frequency resources allocated by the base station.

[0287] As an example, when resource allocation is performed in an altitude-based resource allocation manner, the resource allocation unit 1404 may be configured to determine the altitude interval in which the user equipment is located based on the relationship between the current altitude and one or more altitude threshold values, and to allocate resources to the user equipment based on the altitude interval in which the user equipment is located.

[0288] However, performing resource allocation based only on the height range of the user equipment is a rough resource allocation method. Since the base station can usually obtain more information about the user equipment within its coverage area, a more refined resource allocation can be performed.

[0289] Preferably, the resource allocation unit 1404 may be configured to allocate the same or different time-frequency resources to user equipments in the same altitude interval according to the auxiliary information.

[0290] As an example, for two user equipments in the same altitude range, resource allocation can be performed based on the horizontal distance information between the two user equipments. Fig.29 For detailed explanation, Fig.29 is a schematic diagram showing an example of a resource allocation scheme according to an embodiment of the present disclosure.

[0291] like Fig.29 As shown, user equipment UAV5 and UAV6 are in the same altitude range, and user equipment UAV3 and UAV4 are in the same altitude range. UAV5 and UAV6, which are farther apart horizontally and thus have less interference with each other, are allocated the same resource 1 to improve resource utilization efficiency, while UAV3 and UAV4, which are closer horizontally and thus have greater interference with each other, are allocated different resources 2 and resources 3 to avoid interference.

[0292] It should be understood that the method of further refining resource allocation based on the horizontal distance as auxiliary information is only an example. For example, resource allocation can also be performed based on other interference-related information, which will not be described in detail here.

[0293] In addition, preferably, the resource allocation unit 1404 may be configured to allocate the same or different time-frequency resources to different user equipments in different altitude intervals according to the distances between the altitude intervals in which the different user equipments are located.

[0294] like Fig.29 As shown, for example, if it is determined that the height intervals of two user equipments are far apart (for example, greater than a predetermined threshold), in order to improve resource utilization efficiency, it may be considered to allocate the same time-frequency resources to the two user equipments (for example, Fig.29 As shown, both user equipment UAV1 and UAV5 are allocated resource 1). On the other hand, if the height intervals of the two are not much different (eg, less than a predetermined threshold), more refined resource allocation is required based on further information.

[0295] It can be understood that when actually allocating resources, in addition to considering the altitude information, the base station can also make a comprehensive consideration based on the various information it has to optimize resource allocation.

[0296] As another preferred example, the resource allocation unit 1404 may be further configured to obtain three-dimensional location information of the user equipment, and perform resource allocation according to the three-dimensional location information of the user equipment.

[0297] Specifically, the resource allocation unit 1404 may be configured to perform resource allocation according to the distance between the three-dimensional positions of the user equipment. For example, if the distance between the three-dimensional positions of two user equipment is large (higher than a predetermined threshold), it may be considered to allocate the same resources to the two user equipment to improve resource utilization efficiency; conversely, if the distance between the three-dimensional positions of the two user equipment is close (less than a predetermined threshold), different time-frequency resources need to be allocated to the two user equipment to reduce interference.

[0298] Fig.30 is a schematic diagram showing an example of the resource allocation scheme. Fig.30 As shown, when performing resource allocation, by considering the three-dimensional position information of the user equipment, more refined resource allocation can be performed, which is conducive to improving resource utilization efficiency and reducing interference. At this time, it is only necessary to determine whether the height of the user equipment is higher than the minimum height threshold value to select an appropriate resource allocation scheme (a traditional resource allocation scheme or a height-based resource allocation scheme), and then consider the relative distance between the two user equipments to perform more refined resource allocation, without considering the relationship between the height of the user equipment and each height threshold value. It can be seen that this scheme is also applicable when there is only one height threshold value.

[0299] In addition, when allocating resources, resource allocation can also be optimized based on interference coordination with other base stations.

[0300] Preferably, the resource allocation unit 1404 may be configured to optimize resource allocation by performing interference coordination with the interfering base station according to the interference reporting information from the user equipment.

[0301] Return to previous reference Figure 5 To describe this communication scenario example. Figure 5 As shown, it is assumed that the UAV3 flies from the range of the base station BS1 to the range of the base station BS2 while maintaining the same flight altitude but without switching. At this time, the communication of the UAV3 on the time-frequency resources allocated by the base station BS1 may be interfered by the communication within the range of the base station BS2. Therefore, the UAV3 can report its interference information to the base station BS1, so that the base station BS1 can optimize the resource allocation to the UAV3 by coordinating interference with the base station BS2.

[0302] Fig.31A is a flowchart showing the signaling interaction process in this communication scenario example.

[0303] like Fig.31AAs shown, when the user equipment UAV3 determines that the current interference is too large and thus affects its communication performance, it reports the interference-related information to the base station BS1. As an example, the user equipment UAV3 can determine the interfering cell by measuring the cell specific reference signal (CRS), and include the ID information of the interfering cell in the interference coordination request and send it to the base station BS1. After receiving the interference coordination request, the base station BS1 performs interference coordination with the interfering base station BS2, and adjusts the resource allocation result for the user equipment UAV3 according to the interference coordination result.

[0304] On the other hand, when base station BS1 and base station BS2 cannot communicate directly, the interference coordination request can be forwarded via the core network (for example, MME). After receiving the interference coordination request, base station BS2 can adjust the resource allocation within its range to reduce interference to user equipment UAV3. Fig.31B The signaling interaction process in this case is shown.

[0305] In addition, preferably, the device 1400 can also assist in resource allocation in the event of a cell handover. Specifically, the device 1400 can directly or indirectly forward the acquired height information of the user equipment to the handover target base station in response to a handover request from the user equipment, so that the handover target base station can allocate resources to the user equipment.

[0306] Fig.32 FIG. 1 is a flow chart showing the signaling interaction process of assisting resource allocation in the case of X2-based handover. Fig.32 As shown, in the case of X2-based handover, the source cell and the target cell can communicate directly, so that the source cell includes the height information of the user equipment in the handover request and sends it to the target cell. The target cell can allocate resources according to the received height information and send the allocated resources to the user equipment.

[0307] Fig.33 is a flow chart showing the signaling interaction process of auxiliary resource allocation in the case of S1-based switching. Fig.33 As shown, in the case of S1-based handover, the source cell and the target cell cannot communicate directly, so the source cell can send the height information of the user equipment to the core network (e.g., MME) through, for example, handover required signaling, and the MME will then forward the height information to the target cell through a handover request. As a result, the target cell can allocate resources according to the received height information and send the allocated resources to the user equipment.

[0308] It should be noted that although the above references Fig.32 and Fig.33 The flowchart shown describes the signaling interaction in the event of a switch, but this is only for illustrating the principles of the present disclosure, and illustrations and descriptions not related to the technology of the present disclosure are omitted to avoid ambiguity. Those skilled in the art can make appropriate modifications to the signaling interaction process based on the principles of the present disclosure.

[0309] In addition, it should be noted that the above reference Fig. 27 The described apparatus 1400 may be implemented at the chip level, or may be implemented at the device level by including other external components. For example, the apparatus 1400 may also operate as a base station itself, and may include a communication unit (optionally, shown in a dotted box) for performing communication operations. For example, the communication unit may be used to perform communication with user equipment, communication with other base stations, communication with a core network, and the like. In addition, it should be noted that the specific implementation form of the communication unit is not limited here, and it may include one or more communication interfaces to implement communication with different external devices.

[0310] (3-2. User equipment configuration example)

[0311] The base station can only allocate time and frequency resources to user equipment within its coverage, but cannot perform resource scheduling for user equipment outside the coverage. The resource allocation scheme of the present disclosure will be described below for user equipment within the coverage and user equipment outside the coverage.

[0312] (3-2-1. Configuration example of user equipment within coverage)

[0313] Fig.34 : is a block diagram showing a configuration example of an apparatus on the user equipment side in a wireless communication system according to a third embodiment of the present disclosure.

[0314] like Fig.34 As shown, the device 1500 according to this embodiment may include a reporting information generating unit 1502 and a control unit 1504 .

[0315] Specifically, the reporting information generating unit 1502 may be configured to generate reporting information including at least the height information of the user equipment, and the reporting information is to be sent to the base station so that the base station can allocate resources based on the height information and one or more height thresholds. As an example, the reporting information may be included in a measurement report, uplink control information, or channel state information.

[0316] Preferably, the reporting information generating unit 1502 may be further configured to send the reporting information to the base station when the current height of the user equipment is higher than the minimum height threshold, so as to reduce signaling overhead and processing overhead.

[0317] Preferably, the reported information may also include three-dimensional location information of the user equipment rather than just height information, so that the base station can perform more refined resource allocation.

[0318] Preferably, the reporting information generation unit 1502 can be further configured to generate interference reporting information about interference when the interference to the user equipment exceeds a predetermined threshold, and the interference reporting information is to be sent to the base station so that the base station can optimize resource allocation to the user equipment by performing interference coordination with the interfering base station.

[0319] For a detailed description of the reported information, please refer to the description of the corresponding position in the above base station embodiment, which will not be repeated here.

[0320] The control unit 1504 may be configured to control the user equipment to communicate on the corresponding time-frequency resources according to the resource allocation result from the base station. Preferably, the control unit 1504 may obtain the relevant resource allocation result from the uplink scheduling grant signaling UL grant or downlink control information DCI from the base station.

[0321] In addition, preferably, the device 1500 may also include a switching request unit 1506, which may be configured to generate a switching request in response to a predetermined trigger event, and the switching request is to be sent to the base station so that the base station forwards the height information of the user equipment directly or indirectly to the switching target base station according to the switching request, so that the switching target base station can allocate resources to the user equipment.

[0322] It should be noted that the configuration example of the user equipment within the coverage described here is the same as that of the above reference Figures 27 to 33 The configuration example of the base station described here corresponds to that of the base station, so the contents not described in detail here can be found in the description of the corresponding position above and will not be repeated here.

[0323] (3-2-2. Configuration example of out-of-coverage user equipment)

[0324] Fig.35 is a block diagram showing another configuration example of an apparatus on the user equipment side in a wireless communication system according to the third embodiment of the present disclosure.

[0325] like Fig.35 As shown, the device 1600 according to this embodiment may include a selection unit 1602 and a control unit 1604 .

[0326] The selection unit 1602 may be configured to select a time-frequency resource from a corresponding resource pool of the pre-configured one or more resource pools according to at least a current altitude of the user equipment and one or more altitude thresholds.

[0327] Since the user equipment outside the coverage cannot accept the resource scheduling of the base station, the user equipment can select time-frequency resources from the pre-configured resource pool according to, for example, a height threshold value pre-configured or received from other user equipments and the current height.

[0328] As an example, one or more resource pools are divided based on one or more height thresholds. Fig.36 is a schematic diagram showing an example of a resource pool division method based on altitude intervals.

[0329] like Fig.36 As shown, according to the height intervals divided by each height threshold value, the pre-configured resource pool is mapped to the corresponding height interval. Preferably, for two height intervals that are far apart, they can be mapped to the same resource pool to improve resource utilization efficiency. For example, Fig.36 As shown, the uppermost height interval and the lowermost height interval can reuse the same resource pool 1.

[0330] In this case, the selection unit 1602 may be configured to first determine the altitude interval in which the user equipment is located, and then select time-frequency resources from the corresponding resource pool according to the correspondence between the altitude interval and the resource pool.

[0331] It can be understood that this resource pool division method is a relatively simple division method when there are multiple height thresholds, but when there is only one height threshold, this division method may not be applicable. Therefore, more generally, it is possible to consider dividing the resource pool based on three-dimensional space. Fig.37 is a schematic diagram showing an example of a resource pool division method based on a three-dimensional space.

[0332] like Fig.37 As shown, above the minimum height threshold, the entire space is divided into several three-dimensional spaces in a cube shape, for example, and each three-dimensional space may correspond to a pre-configured resource pool. Preferably, for two three-dimensional spaces that are far apart (for example, the three-dimensional space distance between the two is greater than a predetermined threshold), they can be mapped to the same resource pool to improve resource utilization efficiency, such as Fig.37 shown.

[0333] It should be noted that although Fig.37 It is shown that the resource pool is divided in a cube shape, but it should be understood that this is only an example and not a limitation, and it may also be divided in other shapes (eg, sphere) besides the cube shape.

[0334] In addition, it should be pointed out that the volume of each three-dimensional space (for example, the side length of a cube, the radius of a sphere, etc.) can be pre-configured according to actual conditions and is not specifically limited here.

[0335] In this case, the selection unit 1602 may be configured to determine the three-dimensional space where the user equipment is located according to the current three-dimensional position of the user equipment, and select time-frequency resources from the corresponding resource pool according to the correspondence between the three-dimensional space and the resource pool.

[0336] When selecting time-frequency resources from the corresponding resource pool, the selection unit 1602 may randomly select from them, but this may result in a collision. Alternatively, the selection unit 1602 may also listen before selecting, that is, observe whether the time-frequency resources have been occupied by other user equipment to reduce the probability of collision, but this may increase the power consumption of the user equipment.

[0337] In addition, preferably, such collisions can be avoided by properly configuring the resource pool. For example, if the density of drones in a certain space area is large, a larger resource pool can be allocated to the space area to reduce collisions.

[0338] Preferably, the apparatus 1600 may further include a memory 1606, which may store information related to one or more resource pools. For example, a pre-configured altitude threshold value, a correspondence between an altitude interval and a resource pool, a correspondence between a three-dimensional space and a resource pool, etc. may be stored, so that when the selection unit 1602 selects a time-frequency resource according to the location information of the user equipment, it may read the relevant information from the memory 1606 for selection.

[0339] It should be noted that the above reference Fig.34 and Fig.35 The described apparatuses 1500 and 1600 may be implemented at the chip level, or may be implemented at the device level by including other external components. For example, the apparatuses 1500 and 1600 may work as user equipment itself, and may also include a communication unit (optionally, shown in a dotted box) for performing communication operations. For example, the communication unit may be used to perform communication with a base station, communication with other user equipment, and the like. In addition, it should be noted that the specific implementation form of the communication unit is not limited here, and it may include one or more communication interfaces to implement communication with different external devices.

[0340] In addition, it should be noted that the above reference Fig. 27 , Fig.34 and Fig.35 The various functional units described are only logical modules divided according to the specific functions they implement, and are not used to limit the specific implementation methods. In actual implementation, the above-mentioned various functional units and modules can be implemented as independent physical entities, or can also be implemented by a single entity (for example, a processor (CPU or DSP, etc.), an integrated circuit, etc.).

[0341] In addition, it should be noted that although the device embodiments of the present disclosure (including the device at the base station end and the device at the user equipment end) are described above with reference to the block diagrams shown in the accompanying drawings, this is only an example and not a limitation. Those skilled in the art can modify the functional configuration examples shown according to the principles of the present disclosure, for example, add, delete, modify, combine, etc., the various functional modules therein, and all such variations should be considered to fall within the scope of the present disclosure.

[0342] (3-3. Method Example)

[0343] Corresponding to the above-mentioned device embodiments, the present disclosure also provides the following method embodiments.

[0344] Fig.38 : is a flowchart showing an example of a process of a method at a base station side in a wireless communication system according to the third embodiment of the present disclosure.

[0345] like Fig.38 As shown, the method according to this embodiment starts at step S1701. In step S1701, at least height information of each user equipment among one or more user equipments is obtained.

[0346] Then, the method proceeds to step S1702. In step S1702, for each user equipment, resources are allocated to the user equipment based at least on the height information of the user equipment and one or more height thresholds for the user equipment.

[0347] It should be noted that the method embodiment here is the same as the above reference Fig. 27 Corresponding to the device embodiment of the base station end described, the contents not described in detail here can refer to the description of the corresponding positions above and will not be repeated here.

[0348] Fig.39 : is a flowchart showing an example of a process of a method at a user equipment side in a wireless communication system according to the third embodiment of the present disclosure.

[0349] like Fig.39 As shown, the method according to this embodiment starts at step S1801. In step S1801, reporting information including at least height information of the user equipment is generated, and the reporting information is to be sent to the base station so that the base station can perform resource allocation based on the height information and one or more height thresholds.

[0350] Then, the method proceeds to step S1802. In step S1802, according to the resource allocation result of the base station, the user equipment is controlled to communicate on the corresponding time-frequency resources.

[0351] It should be noted that the method embodiment here is the same as the above reference Fig.34Corresponding to the embodiments of the user equipment within the coverage described, the contents not described in detail here can refer to the description of the corresponding positions above and will not be repeated here.

[0352] Fig.40 is a flowchart showing another process example of a method at a user equipment side in a wireless communication system according to the third embodiment of the present disclosure.

[0353] like Fig.40 As shown, the method according to this embodiment starts at step S1901. In step S1901, time-frequency resources are selected from a corresponding resource pool in one or more pre-configured resource pools according to at least the current altitude of the user equipment and one or more altitude thresholds.

[0354] Then, the method proceeds to step S1902. In step S1902, the user equipment is controlled to communicate on the selected time-frequency resources.

[0355] It should be noted that the method embodiment here is the same as the above reference Fig.35 Corresponding to the embodiment of the user equipment outside the coverage described, the contents not described in detail here can refer to the description of the corresponding position above, which will not be repeated here.

[0356] In addition, it should be understood that the above Figures 38 to 40 The flowchart shown is only an example and not a limitation. Those skilled in the art may modify the processing flow example shown in accordance with the principles of the present disclosure, for example, by adding, deleting, modifying, combining, etc., the various steps therein, and all such variations should be considered to fall within the scope of the present disclosure.

[0357] According to the third embodiment of the present disclosure, resource allocation is performed based on the height information and height threshold of the user equipment, which can optimize resource allocation in the UAV communication scenario, improve resource utilization and reduce interference.

[0358] Although the first to third embodiments of the present disclosure are described separately for ease of understanding, this does not mean that the various embodiments are completely independent or mutually exclusive. In fact, as needed, those skilled in the art can make appropriate combinations or modifications to the above embodiments according to the principles of the present disclosure, and such combinations or modifications should also be considered to fall within the scope of the present disclosure.

[0359] It should be understood that the machine-executable instructions in the storage medium and program products according to the embodiments of the present disclosure can also be configured to execute methods corresponding to the above-mentioned device embodiments. Therefore, the contents not described in detail here can refer to the description of the previous corresponding positions and will not be repeated here.

[0360] Accordingly, the storage medium for carrying the program product including the machine executable instructions is also included in the disclosure of the present invention, including but not limited to a floppy disk, an optical disk, a magneto-optical disk, a memory card, a memory stick, and the like.

[0361] [4. Computing device for implementing the embodiments of the apparatus and method of the present disclosure]

[0362] In addition, it should be noted that the above series of processes and devices can also be implemented by software and / or firmware. In the case of being implemented by software and / or firmware, from a storage medium or a network to a computer with a dedicated hardware structure, such as Fig.41 The general-purpose personal computer 2000 shown installs the programs constituting the software, and when the various programs are installed, the computer can execute various functions and the like. Fig.41 : is a block diagram showing an example structure of a personal computer as an information processing device employable in the embodiments of the present disclosure.

[0363] exist Fig.41 In the embodiment, a central processing unit (CPU) 2001 executes various processes according to a program stored in a read-only memory (ROM) 2002 or a program loaded from a storage section 2008 to a random access memory (RAM) 2003. In the RAM 2003, data required when the CPU 2001 executes various processes and the like is also stored as needed.

[0364] The CPU 2001, the ROM 2002, and the RAM 2003 are connected to one another via a bus 2004. To the bus 2004, an input / output interface 2005 is also connected.

[0365] The following components are connected to the input / output interface 2005: an input section 2006 including a keyboard, a mouse, etc.; an output section 2007 including a display such as a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 2008 including a hard disk, etc.; and a communication section 2009 including a network interface card such as a LAN card, a modem, etc. The communication section 2009 performs communication processing via a network such as the Internet.

[0366] A drive 2010 is also connected to the input / output interface 2005 as needed. A removable medium 2011 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory or the like is mounted on the drive 2010 as needed so that a computer program read therefrom is installed into the storage section 2008 as needed.

[0367] In the case where the above-described series of processing is realized by software, a program constituting the software is installed from a network such as the Internet or a storage medium such as the removable medium 2011 .

[0368] It should be understood by those skilled in the art that such storage media is not limited to Fig.41 The removable medium 2011 shown has a program stored therein and is distributed separately from the device to provide the program to the user. Examples of the removable medium 2011 include magnetic disks (including floppy disks (registered trademark)), optical disks (including compact disk read-only memory (CD-ROM) and digital versatile disks (DVD)), magneto-optical disks (including minidiscs (MD) (registered trademark)), and semiconductor memories. Alternatively, the storage medium may be a ROM 2002, a hard disk included in the storage portion 2008, or the like, in which the program is stored and distributed to the user together with the device containing them.

[0369] [5. Application examples of the technology disclosed herein]

[0370] The technology of the present disclosure can be applied to various products. For example, the base station mentioned in the present disclosure can be implemented as any type of evolved Node B (eNB), such as macro eNB and small eNB. Small eNB can be an eNB that covers a cell smaller than a macro cell, such as a pico eNB, a micro eNB, and a home (femto) eNB. Alternatively, the base station can be implemented as any other type of base station, such as a NodeB and a base transceiver station (Base Transceiver Station, BTS). The base station may include: a main body (also called a base station device) configured to control wireless communication; and one or more remote radio heads (Remote Radio Head, RRH) arranged in a place different from the main body. In addition, the various types of terminals described below can all work as base stations by temporarily or semi-persistently performing base station functions.

[0371] The following will refer to Figure 42 to Figure 43 Application examples according to the present disclosure are described.

[0372] (First application example)

[0373] Fig.42 2200 is a block diagram showing a first example of a schematic configuration of an eNB to which the technology of the present disclosure can be applied. The eNB 2200 includes one or more antennas 2210 and a base station device 2220. The base station device 2220 and each antenna 2210 may be connected to each other via an RF cable.

[0374] Each of the antennas 2210 includes a single or multiple antenna elements (such as multiple antenna elements included in a multiple-input multiple-output (MIMO) antenna) and is used for the base station device 2220 to transmit and receive wireless signals. Fig.42 As shown, the eNB 2200 may include multiple antennas 2210. For example, the multiple antennas 2210 may be compatible with multiple frequency bands used by the eNB 2200. Fig.42An example is shown in which the eNB 2200 includes a plurality of antennas 2210 , but the eNB 2200 may also include a single antenna 2210 .

[0375] The base station device 2220 includes a controller 2221 , a memory 2222 , a network interface 2223 , and a wireless communication interface 2225 .

[0376] The controller 2221 may be, for example, a CPU or a DSP, and operates various functions of the higher layers of the base station device 2220. For example, the controller 2221 generates a data packet based on the data in the signal processed by the wireless communication interface 2225, and transmits the generated packet via the network interface 2223. The controller 2221 may bundle data from a plurality of baseband processors to generate a bundled packet, and transmit the generated bundled packet. The controller 2221 may have a logical function to perform the following control: the control may be such as radio resource control, radio bearer control, mobility management, admission control, and scheduling. The control may be performed in conjunction with a nearby eNB or core network node. The memory 2222 includes a RAM and a ROM, and stores programs executed by the controller 2221 and various types of control data (such as a terminal list, transmission power data, and scheduling data).

[0377] The network interface 2223 is a communication interface for connecting the base station device 2220 to the core network 2224. The controller 2221 can communicate with the core network node or another eNB via the network interface 2223. In this case, the eNB 2200 and the core network node or other eNBs can be connected to each other through a logical interface (such as an S1 interface and an X2 interface). The network interface 2223 can also be a wired communication interface or a wireless communication interface for a wireless backhaul line. If the network interface 2223 is a wireless communication interface, the network interface 2223 can use a higher frequency band for wireless communication compared to the frequency band used by the wireless communication interface 2225.

[0378] The wireless communication interface 2225 supports any cellular communication scheme (such as long term evolution (LTE) and LTE-Advanced), and provides a wireless connection to a terminal located in a cell of the eNB 2200 via an antenna 2210. The wireless communication interface 2225 may generally include, for example, a baseband (BB) processor 2226 and an RF circuit 2227. The BB processor 2226 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and perform various types of signal processing of layers (e.g., L1, medium access control (MAC), radio link control (RLC), and packet data convergence protocol (PDCP)). Instead of the controller 2221, the BB processor 2226 may have a part or all of the above-mentioned logical functions. The BB processor 2226 may be a memory storing a communication control program, or a module including a processor configured to execute a program and related circuits. Updating the program may change the function of the BB processor 2226. The module may be a card or a blade inserted into a slot of the base station device 2220. Alternatively, the module may also be a chip mounted on a card or a blade. Meanwhile, the RF circuit 2227 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via the antenna 2210 .

[0379] like Fig.42 As shown, the wireless communication interface 2225 may include multiple BB processors 2226. For example, the multiple BB processors 2226 may be compatible with multiple frequency bands used by the eNB 2200. Fig.42 As shown, the wireless communication interface 2225 may include multiple RF circuits 2227. For example, the multiple RF circuits 2227 may be compatible with multiple antenna elements. Fig. 22 An example is shown in which the wireless communication interface 2225 includes a plurality of BB processors 2226 and a plurality of RF circuits 2227 , but the wireless communication interface 2225 may also include a single BB processor 2226 or a single RF circuit 2227 .

[0380] (Second application example)

[0381] Fig.43 23 is a block diagram showing a second example of a schematic configuration of an eNB to which the technology of the present disclosure can be applied. The eNB 2330 includes one or more antennas 2340, a base station device 2350, and an RRH 2360. The RRH 2360 and each antenna 2340 can be connected to each other via an RF cable. The base station device 2350 and the RRH 2360 can be connected to each other via a high-speed line such as an optical fiber cable.

[0382] Each of the antennas 2340 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for the RRH 2360 to transmit and receive wireless signals. Fig.43 As shown, the eNB 2330 may include multiple antennas 2340. For example, the multiple antennas 2340 may be compatible with multiple frequency bands used by the eNB 2330. Fig.43 An example is shown in which the eNB 2330 includes a plurality of antennas 2340 , but the eNB 2330 may also include a single antenna 2340 .

[0383] The base station device 2350 includes a controller 2351, a memory 2352, a network interface 2353, a wireless communication interface 2355, and a connection interface 2357. The controller 2351, the memory 2352, and the network interface 2353 are similar to the reference Fig.42 The controller 2221, memory 2222 and network interface 2223 described are the same.

[0384] The wireless communication interface 2355 supports any cellular communication scheme (such as LTE and LTE-Advanced), and provides wireless communication to a terminal located in a sector corresponding to the RRH 2360 via the RRH 2360 and the antenna 2340. The wireless communication interface 2355 may generally include, for example, a BB processor 2356. In addition to the BB processor 2356 being connected to the RF circuit 2364 of the RRH 2360 via the connection interface 2357, the BB processor 2356 is connected to the reference RF circuit 2364 of the RRH 2360. Fig.42 The same as the BB processor 2226 described above. Fig.43 As shown, the wireless communication interface 2355 may include multiple BB processors 2356. For example, the multiple BB processors 2356 may be compatible with multiple frequency bands used by the eNB 2330. Fig.43 An example is shown in which the wireless communication interface 2355 includes a plurality of BB processors 2356 , but the wireless communication interface 2355 may also include a single BB processor 2356 .

[0385] The connection interface 2357 is an interface for connecting the base station device 2350 (wireless communication interface 2355) to the RRH 2360. The connection interface 2357 may also be a communication module for connecting the base station device 2350 (wireless communication interface 2355) to the RRH 2360 for communication in the above-mentioned high-speed line.

[0386] The RRH 2360 includes a connection interface 2361 and a wireless communication interface 2363 .

[0387] The connection interface 2361 is an interface for connecting the RRH 2360 (wireless communication interface 2363) to the base station device 2350. The connection interface 2361 may also be a communication module for communication in the above-mentioned high-speed line.

[0388] The wireless communication interface 2363 transmits and receives wireless signals via the antenna 2340. The wireless communication interface 2363 may generally include, for example, an RF circuit 2364. The RF circuit 2364 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via the antenna 2340. Fig.43 As shown, the wireless communication interface 2363 may include multiple RF circuits 2364. For example, the multiple RF circuits 2364 may support multiple antenna elements. Fig.43 An example is shown in which the wireless communication interface 2363 includes a plurality of RF circuits 2364 , but the wireless communication interface 2363 may also include a single RF circuit 2364 .

[0389] exist Fig.42 and Fig.43 In the eNB 2200 and the eNB 2330 shown, the communication unit in the apparatus at the base station end described in the first to third embodiments may be implemented by the wireless communication interface 2225 and the wireless communication interface 2355 and / or the wireless communication interface 2363. At least part of the functional units in the apparatus at the base station end described in the first to third embodiments may also be implemented by the controller 2221 and the controller 2351.

[0390] The preferred embodiments of the present disclosure are described above with reference to the accompanying drawings, but the present disclosure is certainly not limited to the above examples. Those skilled in the art may obtain various changes and modifications within the scope of the appended claims, and it should be understood that these changes and modifications will naturally fall within the technical scope of the present disclosure.

[0391] For example, the units shown in dashed boxes in the functional block diagrams shown in the accompanying drawings all indicate that the functional units are optional in the corresponding device, and the various optional functional units can be combined in an appropriate manner to achieve the required functions.

[0392] For example, a plurality of functions included in one unit in the above embodiments may be implemented by separate devices. Alternatively, a plurality of functions implemented by a plurality of units in the above embodiments may be implemented by separate devices, respectively. In addition, one of the above functions may be implemented by a plurality of units. Needless to say, such a configuration is included in the technical scope of the present disclosure.

[0393] In this specification, the steps described in the flowchart include not only the processing performed in time series in the order described, but also the processing performed in parallel or individually rather than necessarily in time series. In addition, even in the steps processed in time series, it goes without saying that the order can be appropriately changed.

[0394] In addition, in one aspect, the technology of the present disclosure can provide the following configuration:

[0395] 1. An apparatus in a wireless communication system, the apparatus comprising a processing circuit, the processing circuit being configured to:

[0396] Based on at least one of the base station related information, the cell related information and the user equipment related information, one or more height threshold values ​​for the user equipment are determined.

[0397] 2. The apparatus according to configuration 1, wherein the processing circuit is further configured to:

[0398] Determining whether the user equipment has drone communication capability based on the user equipment related information; and

[0399] If it is determined that the user equipment has drone communication capability, the core network device is requested to confirm whether the user equipment is allowed to use the current network.

[0400] 3. The apparatus according to configuration 2, wherein the processing circuit is further configured to: if it is confirmed that the user equipment is allowed to use the current network, determine one or more height threshold values ​​for the user equipment.

[0401] 4. An apparatus according to configuration 2, wherein the processing circuit is further configured to: if it is determined that the user equipment has drone communication capability, then in response to an attachment request from the user equipment, request the core network device to confirm whether the user equipment is allowed to use the current network.

[0402] 5. The apparatus according to configuration 1, wherein the processing circuit is further configured to: generate configuration information including the one or more height threshold values, wherein the configuration information is to be sent to the user equipment.

[0403] 6. The apparatus according to configuration 5, wherein the configuration information is included in RRC layer signaling, and the RRC layer signaling includes a system broadcast message, an RRC connection establishment message, or an RRC connection reconfiguration message.

[0404] 7. An apparatus according to configuration 5, wherein the configuration information is included in physical layer signaling, and the physical layer signaling includes downlink control information.

[0405] 8. The apparatus according to configuration 5, wherein the configuration information is included in MAC layer signaling, and the MAC layer signaling includes a MAC control unit.

[0406] 9. The apparatus according to configuration 1, wherein one or more height threshold values ​​of the user equipment are the same or different for different base stations and / or cells or for the same base station and / or cell.

[0407] 10. The apparatus according to configuration 1, wherein, for different base stations and / or cells or for the same base station and / or cell, one or more height threshold values ​​of the user equipment and different user equipment are the same or different.

[0408] 11. The apparatus according to configuration 1, wherein the user equipment related information includes information fed back by the user equipment and / or other user equipment proactively or in response to a query from a base station.

[0409] 12. The apparatus according to configuration 11, wherein the user equipment related information includes one or more of capability information and communication parameters.

[0410] 13. An apparatus according to configuration 11, wherein the processing circuit is further configured to: obtain auxiliary information actively fed back by the user equipment and / or other user equipment as the user equipment related information, the auxiliary information including one or more of capability information, expected flight altitude and flight speed.

[0411] 14. The apparatus according to configuration 1, wherein the processing circuit is further configured to: obtain category information indicating a device category of the user equipment and / or other user equipment as the user equipment related information.

[0412] 15. The apparatus of configuration 1, wherein the processing circuit is further configured to:

[0413] generating measurement configuration information for the user equipment and / or other user equipment, so that the user equipment and / or other user equipment performs measurement reporting periodically, aperiodically or based on event triggering according to the measurement configuration information; and

[0414] The one or more height threshold values ​​are determined and / or updated based on measurement reporting results from the user equipment and / or other user equipment, wherein the measurement reporting results include one or more of location information, height information, speed information, power information, and neighboring cell measurement results.

[0415] 16. The apparatus according to configuration 15, wherein the measurement configuration information is included in physical layer signaling, MAC layer signaling and / or RRC layer signaling.

[0416] 17. The apparatus according to configuration 1, wherein the processing circuit is further configured to: determine and / or update the one or more altitude threshold values ​​based on environmental information and / or information interaction with other base stations.

[0417] 18. An apparatus in a wireless communication system, the apparatus comprising a processing circuit, the processing circuit being configured to:

[0418] Based on the configuration information from the base station, one or more height threshold values ​​for the user equipment where the device is located are obtained,

[0419] The one or more height thresholds are determined by the base station based on at least one of base station related information, cell related information and user equipment related information.

[0420] 19. An apparatus according to configuration 18, wherein the processing circuit is further configured to: actively or in response to a query from the base station, feed back relevant information of the user device so that the base station can determine the one or more altitude threshold values ​​and / or determine whether the user device has drone communication capability.

[0421] 20. The apparatus according to configuration 19, wherein the processing circuit is further configured to: feed back auxiliary information related to the user equipment as the relevant information of the user equipment.

[0422] 21. The apparatus according to configuration 19, wherein the processing circuit is further configured to: in response to a capability query request from the base station, feed back capability information of the user equipment as relevant information of the user equipment.

[0423] 22. The apparatus according to configuration 19, wherein the processing circuit is further configured to: feed back category information indicating a device category of the user equipment as the relevant information of the user equipment.

[0424] 23. An apparatus according to configuration 19, wherein the processing circuit is further configured to: generate a request to be sent to the base station so that the base station, when determining that the user equipment has drone communication capability, requests the core network device to confirm whether the user equipment is allowed to use the current network.

[0425] 24. The apparatus of configuration 23, wherein the request comprises an attach request.

[0426] 25. The apparatus of configuration 24, wherein the attach request includes identity information of the user equipment.

[0427] 26. The apparatus according to configuration 23, wherein the processing circuit is further configured to: perform an attachment operation on the current network according to a confirmation result of the core network device.

[0428] 27. An apparatus according to configuration 18, wherein the processing circuit is further configured to: perform measurement reporting periodically, non-periodically or based on event triggering according to measurement configuration information from the base station, so that the base station determines and / or updates the one or more height threshold values ​​based on the measurement reporting results.

[0429] 28. The apparatus according to configuration 18, wherein the processing circuit is further configured to: determine and / or update one or a height threshold value for the other user equipment based on the configuration information in response to a request from the other user equipment.

[0430] 29. The apparatus according to configuration 28, wherein the request comprises a resource request of the other user equipment.

[0431] 30. The apparatus according to configuration 18, wherein the processing circuit is further configured to: forward the configuration information to the other user equipment in response to a request from the other user equipment.

[0432] 31. An apparatus in a wireless communication system, the apparatus comprising a processing circuit, the processing circuit being configured to:

[0433] Based on pre-configuration information or indirectly based on configuration information from a base station, obtaining one or more height threshold values ​​for the user equipment where the device is located,

[0434] The configuration information from the base station includes one or more height threshold values ​​determined by the base station based on at least one of base station related information, cell related information and user equipment related information.

[0435] 32. An apparatus according to configuration 31, wherein the processing circuit is further configured to: make a request to surrounding user equipment so that the surrounding user equipment determines and / or updates one or more height threshold values ​​for the user equipment based on the configuration information from the base station, or forwards the configuration information from the base station to the user equipment.

[0436] 33. The apparatus according to configuration 32, wherein the request for the surrounding user equipment further comprises a resource request of the user equipment.

[0437] 34. An apparatus in a wireless communication system, the apparatus comprising a processing circuit, the processing circuit being configured to:

[0438] In response to a request from a base station, confirm whether to allow a user equipment to use a current network, wherein the user equipment has a drone communication capability.

[0439] 35. The apparatus according to configuration 34, wherein the processing circuit is further configured to: generate a confirmation result as to whether the user equipment is allowed to use the current network, and the confirmation result is sent to the user equipment so that the user equipment accesses the current network.

[0440] 36. The apparatus according to configuration 35, wherein the confirmation result is sent to the base station so that the base station configures one or more height threshold values ​​for the user equipment.

[0441] 37. A method in a wireless communication system, the method comprising:

[0442] Based on at least one of the base station related information, the cell related information and the user equipment related information, one or more height threshold values ​​for the user equipment are determined.

[0443] 38. A method in a wireless communication system, the method comprising:

[0444] Based on the configuration information from the base station, one or more height threshold values ​​for the user equipment are obtained,

[0445] The one or more height thresholds are determined by the base station based on at least one of base station related information, cell related information and user equipment related information.

[0446] 39. A method in a wireless communication system, the method comprising:

[0447] Based on pre-configured information or indirectly based on configuration information from a base station, obtain one or more height threshold values ​​for the user equipment,

[0448] The configuration information from the base station includes one or more height threshold values ​​determined by the base station based on at least one of base station related information, cell related information and user equipment related information.

[0449] 40. A method in a wireless communication system, the method comprising:

[0450] In response to a request from a base station, confirm whether to allow a user equipment to use a current network, wherein the user equipment has a drone communication capability.

[0451] 41. A computer-readable storage medium storing executable instructions, wherein when the executable instructions are executed by a computer, the computer performs the method according to any one of configurations 37 to 40.

[0452] On the other hand, the technology disclosed herein can also provide the following configuration:

[0453] 1. An apparatus in a wireless communication system, the apparatus comprising a processing circuit, the processing circuit being configured to:

[0454] Determine one or more height thresholds for the user equipment based on one or more of the base station related information, the cell related information, or the user equipment related information; and

[0455] generating configuration information including the one or more height threshold values, wherein the configuration information is to be sent to the user equipment,

[0456] The configuration information is included in radio resource control (RRC) layer signaling, and the RRC layer signaling includes a system broadcast message, an RRC connection establishment message or an RRC reconfiguration message.

[0457] 2. The apparatus according to configuration 1, wherein the processing circuit is further configured to: if it is confirmed that the user equipment is allowed to use the current network, determine one or more height threshold values ​​for the user equipment.

[0458] 3. An apparatus according to configuration 1, wherein the processing circuit is further configured to: if it is determined that the user equipment has drone communication capability, then in response to an attachment request from the user equipment, request a core network device to confirm whether the user equipment is allowed to use the current network.

[0459] 4. The apparatus according to configuration 1, wherein one or more height threshold values ​​of the user equipment are the same or different for different base stations and / or cells or for the same base station and / or cell.

[0460] 5. The apparatus according to configuration 1, wherein, for different base stations and / or cells or for the same base station and / or cell, one or more height threshold values ​​of the user equipment and different user equipment are the same or different.

[0461] 6. The apparatus according to configuration 1, wherein the user equipment related information includes information fed back by the user equipment and / or other user equipment proactively or in response to a query from a base station.

[0462] 7. The apparatus according to configuration 6, wherein the user equipment related information includes one or more of capability information or communication parameters.

[0463] 8. An apparatus according to configuration 6, wherein the processing circuit is further configured to: obtain auxiliary information actively fed back by the user device and / or other user devices as the user device related information, the auxiliary information including one or more of capability information, expected flight altitude or flight speed.

[0464] 9. The apparatus according to configuration 1, wherein the processing circuit is further configured to: obtain category information indicating a device category of the user equipment and / or other user equipment as the user equipment related information.

[0465] 10. The apparatus of configuration 1, wherein the processing circuit is further configured to:

[0466] generating measurement configuration information for the user equipment and / or other user equipment, so that the user equipment and / or other user equipment performs measurement reporting periodically, aperiodically or based on event triggering according to the measurement configuration information; and

[0467] The one or more height threshold values ​​are determined and / or updated based on measurement reporting results from the user equipment and / or other user equipment, wherein the measurement reporting results include one or more of location information, height information, speed information, power information, or neighboring cell measurement results.

[0468] 11. The apparatus according to configuration 10, wherein the measurement configuration information is included in physical layer signaling, MAC layer signaling and / or RRC layer signaling.

[0469] 12. The apparatus according to configuration 1, wherein the processing circuit is further configured to: determine and / or update the one or more altitude threshold values ​​based on environmental information and / or information interaction with other base stations.

[0470] 13. An apparatus in a wireless communication system, the apparatus comprising a processing circuit, the processing circuit being configured to:

[0471] Based on the configuration information from the base station, one or more height threshold values ​​for the user equipment where the device is located are obtained,

[0472] The one or more height thresholds are determined by the base station based on one or more of base station related information, cell related information, or user equipment related information,

[0473] The configuration information is included in radio resource control (RRC) layer signaling, and the RRC layer signaling includes a system broadcast message, an RRC connection establishment message or an RRC reconfiguration message.

[0474] 14. An apparatus according to configuration 13, wherein the processing circuit is further configured to: actively or in response to a query from the base station, feed back relevant information of the user device so that the base station can determine the one or more altitude threshold values ​​and / or determine whether the user device has drone communication capability.

[0475] 15. An apparatus according to configuration 13, wherein the processing circuit is further configured to: perform measurement reporting periodically, non-periodically or based on event triggering according to measurement configuration information from the base station, so that the base station determines and / or updates the one or more height threshold values ​​based on the measurement reporting results.

[0476] 16. The apparatus according to configuration 13, wherein the processing circuit is further configured to: determine and / or update one or a height threshold value for the other user equipment based on the configuration information in response to a request from the other user equipment.

[0477] 17. The apparatus according to configuration 16, wherein the request comprises a resource request of the other user equipment.

[0478] 18. The apparatus according to configuration 13, wherein the processing circuit is further configured to: forward the configuration information to the other user equipment in response to a request from the other user equipment.

[0479] 19. An apparatus in a wireless communication system, the apparatus comprising a processing circuit, the processing circuit being configured to:

[0480] In response to a request from a base station, confirm whether to allow a user equipment to use a current network, wherein the user equipment has a drone communication capability.

[0481] 20. The apparatus according to configuration 19, wherein the processing circuit is further configured to: generate a confirmation result on whether the user equipment is allowed to use the current network, and the confirmation result is sent to the user equipment so that the user equipment accesses the current network.

[0482] 21. The apparatus according to configuration 20, wherein the confirmation result is sent to the base station so that the base station configures one or more height threshold values ​​for the user equipment.

[0483] 22. A method in a wireless communication system, the method comprising:

[0484] Determine one or more height thresholds for the user equipment based on one or more of the base station related information, the cell related information, or the user equipment related information; and

[0485] generating configuration information including the one or more height threshold values, wherein the configuration information is to be sent to the user equipment,

[0486] The configuration information is included in radio resource control (RRC) layer signaling, and the RRC layer signaling includes a system broadcast message, an RRC connection establishment message or an RRC reconfiguration message.

[0487] 23. A method in a wireless communication system, the method comprising:

[0488] Based on the configuration information from the base station, one or more height threshold values ​​for the user equipment are obtained,

[0489] The one or more height thresholds are determined by the base station based on one or more of base station related information, cell related information, or user equipment related information,

[0490] The configuration information is included in radio resource control (RRC) layer signaling, and the RRC layer signaling includes a system broadcast message, an RRC connection establishment message or an RRC reconfiguration message.

[0491] 24. A method in a wireless communication system, the method comprising:

[0492] In response to a request from a base station, confirm whether to allow a user equipment to use a current network, wherein the user equipment has a drone communication capability.

[0493] Although the present disclosure and its advantages have been described in detail, it should be understood that various changes, substitutions and transformations can be made without departing from the spirit and scope of the present disclosure as defined by the appended claims. Moreover, the terms "including", "comprising" or any other variants of the embodiments of the present disclosure are intended to cover non-exclusive inclusions, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of further restrictions, the elements defined by the statement "including one..." do not exclude the presence of other identical elements in the process, method, article or equipment including the elements.

Claims

1. An apparatus in a wireless communication system, the apparatus comprising a processing circuit, the processing circuit being configured to: Based on the base station related information, the cell related information and the user equipment related information, one or more height threshold values ​​specific to the base station and the cell for the user equipment are determined, wherein: The one or more height thresholds correspond to time-frequency resources used by the user equipment to communicate with the base station; and generating configuration information including the one or more height threshold values, wherein the configuration information is to be sent to the user equipment, The configuration information is included in radio resource control (RRC) layer signaling, and the RRC layer signaling includes a system broadcast message, an RRC connection establishment message or an RRC reconfiguration message.

2. The device according to claim 1, wherein: The processing circuit is further configured to: if it is determined that the user equipment is allowed to use the current network, determine one or more height threshold values ​​for the user equipment.

3. The device according to claim 1, wherein: The processing circuit is further configured to: if it is determined that the user equipment has drone communication capability, then in response to an attachment request from the user equipment, request a core network device to confirm whether the user equipment is allowed to use the current network.

4. The device according to claim 1, wherein: For the same base station and / or cell, the user equipment has the same height threshold.

5. The device according to claim 1, wherein: For different base stations and / or cells or for the same base station and / or cell, one or more height threshold values ​​of the user equipment and different user equipments are the same or different.

6. The device according to claim 1, wherein: The user equipment related information includes information fed back by the user equipment and / or other user equipment proactively or in response to a query of a base station.

7. The device according to claim 6, wherein: The user equipment related information includes one or more of capability information or communication parameters.

8. The device according to claim 6, wherein: The processing circuit is further configured to: obtain auxiliary information actively fed back by the user equipment and / or other user equipment as the user equipment related information, the auxiliary information including one or more of capability information, expected flight altitude or flight speed.

9. The device according to claim 1, wherein: The processing circuit is further configured to: obtain category information indicating a device category of the user equipment and / or other user equipment as the user equipment related information.

10. The device according to claim 1, wherein: The processing circuit is further configured to: Generate measurement configuration information for the user equipment and / or other user equipment, so that the user equipment and / or other user equipment performs measurement reporting periodically, aperiodically or based on event triggering according to the measurement configuration information; as well as The one or more height threshold values ​​are determined and / or updated based on measurement reporting results from the user equipment and / or other user equipment, wherein the measurement reporting results include one or more of location information, height information, speed information, power information, or neighboring cell measurement results.

11. The device according to claim 10, wherein: The measurement configuration information is included in physical layer signaling, MAC layer signaling and / or RRC layer signaling.

12. The device according to claim 1, wherein: The processing circuit is further configured to determine and / or update the one or more altitude threshold values ​​based on environmental information and / or information interaction with other base stations.

13. An apparatus in a wireless communication system, the apparatus comprising a processing circuit, the processing circuit being configured to: Based on the configuration information from the base station, one or more height threshold values ​​specific to the base station and the cell for the user equipment where the device is located are obtained, in, The one or more height threshold values ​​are determined by the base station based on base station related information, cell related information and user equipment related information, and the one or more height threshold values ​​correspond to time-frequency resources used by the user equipment to communicate with the base station, And wherein, the configuration information is included in radio resource control RRC layer signaling, and the RRC layer signaling includes a system broadcast message, an RRC connection establishment message or an RRC reconfiguration message.

14. The device according to claim 13, wherein: The processing circuit is further configured to: actively or in response to a query from the base station, feed back relevant information of the user equipment so that the base station can determine the one or more altitude threshold values ​​and / or determine whether the user equipment has drone communication capability.

15. The device according to claim 13, wherein: The processing circuit is further configured to: perform measurement reporting periodically, aperiodically or based on event triggering according to measurement configuration information from the base station, so that the base station determines and / or updates the one or more height threshold values ​​based on the measurement reporting result.

16. The device according to claim 13, wherein: The processing circuit is further configured to: in response to a request from another user equipment, determine and / or update one or more altitude threshold values ​​for the other user equipment based on the configuration information.

17. The device according to claim 16, wherein: The request includes a resource request of the other user equipment.

18. The device according to claim 13, wherein: The processing circuit is further configured to: forward the configuration information to the other user equipment in response to a request from the other user equipment.

19. An apparatus in a wireless communication system, the apparatus comprising a processing circuit, the processing circuit being configured to: In response to a request from a base station, confirm whether to allow the user equipment to use the current network, wherein: The user equipment has drone communication capability; as well as generating a confirmation result on whether the user equipment is allowed to use the current network, The confirmation result is sent to the base station so that the base station can configure one or more base station and cell-specific height threshold values ​​for the user equipment when confirming that the user equipment is allowed to use the current network, wherein the one or more height threshold values ​​correspond to the time-frequency resources used by the user equipment to communicate with the base station.

20. The device according to claim 19, wherein The confirmation result is also sent to the user equipment, so that the user equipment accesses the current network.

21. A method in a wireless communication system, the method comprising: Determine, based on the base station related information, the cell related information and the user equipment related information, one or more height threshold values ​​specific to the base station and the cell for the user equipment, wherein the one or more height threshold values ​​correspond to time-frequency resources used by the user equipment to communicate with the base station; and generating configuration information including the one or more height threshold values, wherein the configuration information is to be sent to the user equipment, The configuration information is included in radio resource control (RRC) layer signaling, and the RRC layer signaling includes a system broadcast message, an RRC connection establishment message or an RRC reconfiguration message.

22. A method in a wireless communication system, the method comprising: Based on the configuration information from the base station, obtain one or more height threshold values ​​specific to the base station and the cell for the user equipment, The one or more height threshold values ​​are determined by the base station based on base station related information, cell related information and user equipment related information, and the one or more height threshold values ​​correspond to the time-frequency resources used by the user equipment to communicate with the base station, And wherein, the configuration information is included in radio resource control RRC layer signaling, and the RRC layer signaling includes a system broadcast message, an RRC connection establishment message or an RRC reconfiguration message.

23. A method in a wireless communication system, the method comprising: In response to a request from a base station, confirm whether to allow a user equipment to use the current network, wherein the user equipment has a drone communication capability; and generating a confirmation result on whether the user equipment is allowed to use the current network, The confirmation result is sent to the base station so that the base station can configure one or more base station and cell-specific height threshold values ​​for the user equipment when confirming that the user equipment is allowed to use the current network, wherein the one or more height threshold values ​​correspond to the time-frequency resources used by the user equipment to communicate with the base station.

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