Method and apparatus for measurement reports in an NTN environment

Abstract

Embodiments of the present application relate to a method and apparatus for measurement reporting in a non-terrestrial network (NTN) environment. According to an embodiment of the present application, a method may include: receiving a radio resource control (RRC) reconfiguration message, wherein the RRC reconfiguration message includes measurement configuration information; performing a measurement procedure based on the measurement configuration information; determining whether one or more reporting events are satisfied, wherein the one or more reporting events trigger the transmission of a measurement report; and transmitting the measurement report in response to the satisfaction of the reporting event, wherein the reporting event is included in the measurement configuration information, and the reporting event may be a location-based event or a combination of a measurement-based event and a location-based event.

Description

Technical Field

[0001] Embodiments of the present application generally relate to wireless communication technologies, and in particular, to methods and devices for measurement reporting in a non-terrestrial network (NTN) environment. Background Art

[0002] The NTN environment refers to a network or network segment that uses spacecraft or aircraft for transmission. For example, spacecraft include satellites, which can be low Earth orbit (LEO) satellites, medium Earth orbit (MEO) satellites, geostationary orbit (GEO) satellites, and highly elliptical orbit (HEO) satellites. Aircraft include high altitude platforms (HAPs), which cover unmanned aerial systems (UASs), and the UASs include lighter-than-air UASs (LTA) and heavier-than-air UASs (HTA).

[0003] In the 3rd Generation Partnership Project (3GPP), details on how to handle measurement reports in the NTN environment have not been discussed. Summary of the Invention

[0004] Some embodiments of the present application provide a method performed by a user equipment (UE). The method includes: receiving a radio resource control (RRC) reconfiguration message, where the RRC reconfiguration message includes measurement configuration information; performing a measurement procedure based on the measurement configuration information; determining whether one or more reporting events are satisfied, where the one or more reporting events trigger the transmission of a measurement report; and transmitting the measurement report in response to the satisfaction of the reporting event.

[0005] Some embodiments of the present application further provide a device for wireless communication. The device includes: a non-transitory computer-readable medium storing computer-executable instructions thereon; receiving circuitry; transmitting circuitry; and a processor coupled to the non-transitory computer-readable medium, the receiving circuitry, and the transmitting circuitry, where the computer-executable instructions cause the processor to implement the above method performed by the UE.

[0006] Some embodiments of the present application provide a method executable by a base station (BS). The method includes: transmitting an RRC reconfiguration message, where the RRC reconfiguration message includes measurement configuration information; receiving a measurement report, where the measurement report includes the results of a measurement procedure performed by the UE; and determining whether to perform a handover procedure based on the results of the measurement procedure.

[0007] Some embodiments of the present application also provide a device for wireless communication. The device includes: a non-transitory computer-readable medium having computer-executable instructions stored thereon; a receiving circuit system; a transmitting circuit system; and a processor coupled to the non-transitory computer-readable medium, the receiving circuit system, and the transmitting circuit system, wherein the computer-executable instructions cause the processor to implement the above-described another method performed by the BS.

[0008] Details of one or more examples are set forth in the accompanying drawings and the following description. Other features, objects, and advantages will be apparent from the description and drawings, and from the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] To describe the manner in which the advantages and features of the present application can be obtained, a description of the present application is presented by reference to its specific embodiments illustrated in the accompanying drawings. These drawings only depict example embodiments of the present application and should not be considered as limiting its scope.

[0010] Figure 1 Schematic diagram illustrating a wireless communication system according to some embodiments of the present application;

[0011] Figure 2 Exemplary flowchart illustrating a method for transmitting a measurement report according to some embodiments of the present application;

[0012] Figure 3 Exemplary flowchart illustrating a method for receiving a measurement report according to some embodiments of the present application; and

[0013] Figure 4 Exemplary block diagram illustrating a device according to some embodiments of the present application. DETAILED DESCRIPTION

[0014] The detailed description of the drawings is intended as a description of the preferred embodiments of the present application and is not intended to represent the only form in which the present application can be practiced. It should be understood that the same or equivalent functions can be accomplished by different embodiments that are intended to be covered by the spirit and scope of the present application.

[0015] Reference will now be made in detail to some embodiments of the present application, examples of which are illustrated in the accompanying drawings. For the sake of promoting understanding, embodiments are provided in the context of a specific network architecture and new service scenarios (such as 3GPP 5G, 3GPP LTE Release 8, etc.). It is contemplated that as the network architecture and new service scenarios evolve, all embodiments in the present application are also applicable to similar technical problems; and furthermore, the terms cited in the present application may vary, which should not affect the principles of the present application.

[0016] Figure 1Schematic diagram of a wireless communication system according to some embodiments of the present application.

[0017] As Figure 1 shown, the wireless communication system 100 includes two UEs (UE 101-A and UE 101-B) and a BS 102 (e.g., a satellite BS). Although for simplicity only one BS is illustrated in Figure 1 this, it is contemplated that in some other embodiments of the present application, the wireless communication system 100 may include more BSs. Similarly, although for simplicity only two UEs are illustrated in Figure 1 this, it is contemplated that in some other embodiments of the present application, the wireless communication system 100 may include more UEs. Within the coverage area of the BS 102, UE 101-A is located at the position closest to the BS 102, i.e., among all the positions within the coverage area of the BS 102, the distance between the position of UE 101-A and the BS 102 is the smallest, and UE 101-B is located at the position farthest from the BS 102.

[0018] The BS 102 may also be referred to as an access point, access terminal, base station, macro cell, Node-B, evolved Node B (eNB), gNB, home Node-B, relay node, or device, or described using other terms used in the art. The BS 102 is generally part of a radio access network that may include a controller communicatively coupled to the BS 102.

[0019] UE 101-A may include a computing device, such as a desktop computer, laptop computer, personal digital assistant (PDA), tablet computer, smart TV (e.g., a TV connected to the Internet), set-top box, gaming console, security system (including security cameras), in-vehicle computer, network device (e.g., router, switch, and modem), or the like. According to embodiments of the present application, UE 101-A may include a portable wireless communication device, smartphone, cellular phone, flip phone, device with a subscriber identity module, personal computer, pager, or any other device capable of transmitting and receiving communication signals over a wireless network. In some embodiments, UE 101-A may include a wearable device, such as a smartwatch, fitness bracelet, optical head-mounted display, or the like. Additionally, UE 101-A may be referred to as a subscriber unit, mobile device, mobile station, user, terminal, mobile terminal, wireless terminal, fixed terminal, subscriber station, user terminal, or device, or described using other terms used in the art.

[0020] The wireless communication system 100 is compatible with any type of network capable of transmitting and receiving wireless communication signals. For example, the wireless communication system 100 is compatible with wireless communication networks, cellular telephone networks, time division multiple access (TDMA)-based networks, code division multiple access (CDMA)-based networks, orthogonal frequency division multiple access (OFDMA)-based networks, LTE networks, 3GPP-based networks, 3GPP 5G networks, satellite communication networks, high altitude platform networks, and / or other communication networks.

[0021] Currently, details on how to handle measurement reports in the NTN environment are not discussed. Some embodiments of the present application provide solutions for handling measurement reports in the NTN environment.

[0022] Figure 2 Exemplary flowchart illustrating a method for transmitting a measurement report according to some embodiments of the present application. Figure 2 Embodiments of can be performed by a UE (e.g., Figure 1 UE 101-A and UE 101-B illustrated and shown in). Although described with respect to a UE, it should be understood that other devices can be configured to perform methods similar to Figure 2 the method of.

[0023] In an exemplary method 200 as shown in Figure 2 at operation 202, the UE receives an RRC reconfiguration message. For example, the UE receives an RRC reconfiguration message from a BS (e.g., Figure 1 BS 102 illustrated and shown in). The RRC reconfiguration message includes measurement configuration information.

[0024] At operation 204, the UE performs a measurement procedure based on the received measurement configuration information. The measurement procedure can be used to measure a serving cell and one or more neighboring cells. For example, at least one of the serving cell and the one or more neighboring cells is an NTN cell.

[0025] At operation 206, the UE determines whether one or more reporting events are satisfied. The one or more reporting events trigger the transmission of a measurement report. For example, the received measurement configuration information includes reporting configuration information, and the reporting configuration information includes one or more reporting events. At operation 208, if the reporting event is satisfied, then the UE transmits a measurement report.

[0026] According to some embodiments, the reporting event includes a location-based trigger condition. In one instance, the location-based trigger condition is a location-based event where the distance between the UE and the serving cell is an offset greater than the distance between the UE and a neighboring cell. In short, this location-based event can be named location-based event 1.

[0027] According to some embodiments, the measurement configuration information received by the UE in operation 202 includes a distance hysteresis parameter and a distance offset.

[0028] The distance offset may be associated with the "UE's measurement object" or "satellite". The distance offset is cell-specific. For example, the distance offset is associated with the source cell of the UE. For intra-frequency and inter-frequency measurements, the UE's measurement object may indicate the frequency or time position of the reference signal to be measured and the subcarrier spacing.

[0029] The location-based event 1 may include an entry condition (e.g., entry condition #1 described below), which may also be named a distance entry condition or a location entry condition. In an embodiment, the entry condition is that the difference between "the distance between the UE and the serving cell" (e.g., Dp described below) and the "distance hysteresis parameter" (e.g., Hys1 described below) is greater than the sum of "the distance between the UE and the neighboring cell" (e.g., Dn described below) and the "distance offset" (e.g., offset1 described below).

[0030] The location-based event 1 may include an exit condition (e.g., exit condition #1 described below), which may also be named a distance exit condition or a location exit condition. In an embodiment, the exit condition is that the sum of "the distance between the UE and the serving cell" (e.g., Dp described below) and the "distance hysteresis parameter" (e.g., Hys1 described below) is less than the sum of "the distance between the UE and the neighboring cell" (e.g., Dn described below) and the "distance offset" (e.g., offset1 described below).

[0031] The entry condition and the exit condition of the location-based event 1 in the above examples may be represented as follows:

[0032] · Entry condition #1: Dp - Hys1 > Dn + offset1

[0033] · Exit condition #1: Dp + Hys1 < Dn + offset1

[0034] i. Dp (primary distance) is the distance between the UE and the serving cell (e.g., the primary cell group or the secondary cell group (SpCell)).

[0035] ii. Dn (neighboring distance) is the distance between the UE and the neighboring cell.

[0036] iii. offset1 is optional. offset1 may be a parameter associated with the "UE's measurement object" or "satellite". offset1 is cell-specific.

[0037] iv. Hys1 is the hysteresis parameter of the location-based event 1.

[0038] In another example, the location-based trigger condition is another location event, which is: the distance between the UE and the serving cell is greater than a distance threshold; and / or the distance between the UE and an adjacent cell is less than another distance threshold. Briefly, this another location-based event can be named as location-based event 2.

[0039] According to some embodiments, the measurement configuration information received by the UE in operation 202 includes a distance hysteresis parameter and two distance thresholds. In different embodiments, these two distance thresholds may be the same or different.

[0040] Location-based event 2 may include two entry conditions (e.g., entry condition #1-1 and entry condition #1-2 described below), which may also be named as distance entry conditions or location entry conditions. In an embodiment:

[0041] - The entry condition is: the difference between "the distance between the UE and the serving cell" (e.g., Dp described below) and "the distance hysteresis parameter" (e.g., Hys2 described below) is greater than the distance threshold (e.g., threshold1 described below).

[0042] - Another entry condition is: the sum of "the distance between the UE and the adjacent cell" (e.g., Dn described below) and "the distance hysteresis parameter" (e.g., Hys2 described below) is less than another distance threshold (e.g., threshold2 described below).

[0043] Location-based event 2 may include two exit conditions (e.g., exit condition #1-1 and exit condition #1-2 described below), which may also be named as distance exit conditions or location exit conditions. In an embodiment:

[0044] - The exit condition is: the sum of "the distance between the UE and the serving cell" (e.g., Dp described below) and "the distance hysteresis parameter" (e.g., Hys2 described below) is less than the distance threshold (e.g., threshold1 described below).

[0045] - Another exit condition is: the difference between "the distance between the UE and the adjacent cell" (e.g., Dn described below) and "the distance hysteresis parameter" (e.g., Hys2 described below) is greater than another distance threshold (e.g., threshold2 described below).

[0046] The entry conditions and exit conditions of location-based event 2 in the above another example can be represented as follows:

[0047] · Entry condition #1-1: Dp - Hys2 > threshold1

[0048] ·Entry condition #1-2: Dn + Hys2 < threshold2

[0049] ·Exit condition #1-1: Dp + Hys2 < threshold1

[0050] ·Exit condition #1-2: Dn - Hys2 > threshold2

[0051] i. Hys2 is the hysteresis parameter for location-based event 2.

[0052] Regarding the reported event, the UE may consider a location-based event (e.g., location-based event 1 or location-based event 2) that satisfies its entry condition during a triggering timer (TTT) (e.g., TTT1) as "fulfilled". The UE may consider a location-based event that satisfies its exit condition during another TTT (e.g., TTT2) as "unfulfilled". The length of TTT1 may be the same as or different from the length of TTT2. That is, after the entry condition of a location-based event (e.g., location-based event 1 or location-based event 2) is fulfilled during TTT1, the UE considers the reported event to have been "fulfilled" before the exit condition of the location-based event is fulfilled during TTT2. That is, once the exit condition of the location-based event is fulfilled during TTT2, the UE considers the reported event "unfulfilled".

[0053] In some embodiments, the measurement configuration information includes the TTT. Specifically, if the duration for which a location-based event (e.g., location-based event 1 or location-based event 2) satisfies its entry condition is equal to or longer than the TTT, then the UE may determine that the reported event is satisfied.

[0054] As specified in 3GPP TS 38.331, the measurement-based triggering conditions include the following events, such as event A1 to event A6. Under the assumption that the source cell is the SpCell, 3GPP TS 38.331 defines the entry condition and the exit condition for each of event A1 to event A6 respectively.

[0055] Event A1 (The serving cell becomes better than a threshold)

[0056] Event A2 (The serving cell becomes worse than a threshold)

[0057] Event A3 (An adjacent cell becomes an offset better than the SpCell)

[0058] Event A4 (An adjacent cell becomes better than a threshold)

[0059] Event A5 (The SpCell becomes worse than one threshold and an adjacent cell becomes better than another threshold)

[0060] Event A6 (Neighbor cell becomes better offset than the secondary cell (Scell) of the primary cell group)

[0061] In some embodiments of the present application, the reported event includes a measurement-based trigger condition, such as one of events A1 to A6. In an example, the measurement-based trigger condition is associated with the reference signal received power (RSRP). In another example, the measurement-based trigger condition is associated with the reference signal received quality (RSRQ).

[0062] In some embodiments of the present application, the reported event may be a combination of a measurement-based trigger condition and a location-based trigger condition. For example, the reported event may be named "Combined Report Event" and may be one of the following:

[0063] · A combination of event A1 and location-based event 1.

[0064] · A combination of event A1 and location-based event 2.

[0065] · A combination of event A2 and location-based event 1.

[0066] · A combination of event A2 and location-based event 2.

[0067] · A combination of "each of events A3 to A6" and "one of location-based event 1 and location-based event 2", similar to the above combinations related to events A1 and A2.

[0068] In these embodiments, the measurement configuration information includes TTT. Specifically, if the duration for which the entry condition of location-based event 1 is satisfied is equal to or longer than TTT, and the duration for which the entry condition of "one of events A1 to A6" is satisfied is equal to or longer than TTT, then the UE may determine that the combined report event is satisfied. If the duration for which the entry condition of location-based event 2 is satisfied is equal to or longer than TTT, and the duration for which the entry condition of "one of events A1 to A6" is satisfied is equal to or longer than TTT, then the UE may determine that the combined report event is satisfied.

[0069] In option 1, the UE considers the events that satisfy their entry conditions during TTT as "realized" and the events that satisfy their exit conditions during TTT as "not realized". That is, the UE transmits a measurement report only when both events in the combined report event are realized. If the measurement-based event is realized and the location-based event is also realized, then the UE believes that the measurement report procedure should be triggered.

[0070] In some examples of option 1, in each of the following cases, the UE may determine that the combined report event is not satisfied:

[0071] · The duration for satisfying the leaving condition of the location-based event 1 is equal to or longer than TTT;

[0072] · The duration for satisfying the leaving condition of the location-based event 2 is equal to or longer than TTT; and

[0073] · The duration for satisfying the leaving condition of "one of events A1 to A6" is equal to or longer than TTT.

[0074] In some instances of Option 1, if the UE determines that at least one entry condition associated with the reporting event is not satisfied during TTT, then the UE may determine that the combined reporting event is not satisfied. In other words, if the UE finds that at least one entry condition of the reporting event is not satisfied when TTT expires, then the UE determines that the combined reporting event is not satisfied. For example, if the UE determines that at least one of "the entry condition of the location-based event 1, the entry condition of the location-based event 2, and the entry condition of one of events A1 to A6" is not satisfied during TTT, then the UE may determine that the combined reporting event is not satisfied.

[0075] In Option 2, the UE regards the events that satisfy their entry conditions during TTT as "realized", and regards the events that do not satisfy their entry conditions during TTT as "not realized". In some instances of Option 2, in each of the following cases, the UE may determine that the reporting event is not satisfied:

[0076] · The duration for satisfying the entry condition of the location-based event 1 is shorter than TTT;

[0077] · The duration for satisfying the entry condition of the location-based event 2 is shorter than TTT; and

[0078] · The duration for satisfying the entry condition of "one of events A1 to A6" is shorter than TTT.

[0079] In some embodiments, the UE transmits a capability indicator to, for example, the BS. The capability indicator may indicate whether the UE supports: the location-based event 1, the location-based event 2, the measurement-based trigger condition (e.g., one of events A1 to A6), the combination of the measurement-based trigger condition and the location-based event 1; and / or the combination of the measurement-based trigger condition and the location-based event 2.

[0080] In some embodiments, if the leaving condition of the reporting event is satisfied during TTT, then the UE further transmits a measurement report to the serving cell.

[0081] In some embodiments, if the distance between the UE and the serving cell is less than a configured distance value, then the UE further transmits a measurement report to the serving cell.

[0082] In some embodiments, the upper layer of the UE maintains the ephemeris of the UE and / or the location information of the UE. In an embodiment, the UE receives a location reference point. The location information of the UE is related to the location reference point.

[0083] In an embodiment, the upper layer of the UE indicates to the RRC layer of the UE: the ephemeris of the UE; the location information of the UE; a change in the ephemeris of the UE; and / or a change in the location information of the UE. Based on these parameters indicated by the upper layer of the UE, the RRC layer of the UE can check the entry conditions and exit conditions of the reporting event and determine whether the reporting event is satisfied.

[0084] In another embodiment, the RRC layer of the UE transmits measurement configuration information associated with the entry conditions and exit conditions of the reporting event and the TTT value to the upper layer of the UE. Based on these parameters indicated by the RRC layer of the UE, the upper layer of the UE checks the entry conditions and exit conditions of the reporting event, determines whether the reporting event is satisfied, and then indicates the determination to the RRC layer of the UE.

[0085] The following text describes two specific embodiments of the method as Figure 2 shown and illustrated in

[0086] Embodiment 1

[0087] According to Embodiment 1, the UE (e.g., Figure 1 UE 101-A and UE 101-B as illustrated and shown in Figure 1 ) and the BS (e.g.,

[0088] (1) The UE accesses the network. The network configures this UE with measurement configuration information.

[0089] a) The UE is in the RRC_CONNECTED state and maintains a measurement object list, a reporting configuration list, and a measurement identification list according to the measurement configuration information.

[0090] b) The BS can configure the following one reporting event (i.e., the triggering event of the measurement report) for the UE:

[0091] - Location-based event 1: The SpCell becomes greater than the offset of the neighboring cell.

[0092] - Location-based event 2: The distance between the UE and the source cell is greater than a threshold, and the distance between the UE and the neighboring cell is less than another threshold.

[0093] (2) The UE performs a measurement procedure based on the measurement configuration information. The UE evaluates whether the entry conditions for a reporting event (location-based event 1 or location-based event 2) are met. If the entry conditions for the reporting event are met during the TTT, then the UE is triggered to report the measurement results.

[0094] a) Option 1: The upper layer of the UE maintains the ephemeris of the UE and indicates the ephemeris to the RRC layer of the UE. The upper layer of the UE maintains the location information of the UE and indicates the location information to the RRC layer. The RRC layer checks the entry conditions and the departure conditions for the reporting event. Once the ephemeris and / or the location information changes, the upper layer of the UE needs to indicate the information to the RRC layer.

[0095] b) Option 2: The RRC layer of the UE transmits the entry conditions for the reporting event, the departure conditions for the reporting event, and the TTT value to the upper layer of the UE. The upper layer checks the entry conditions and the departure conditions for the reporting event and indicates the corresponding results to the RRC layer.

[0096] c) If the entry conditions for the reporting event are met during the TTT, then the UE considers the reporting event to be triggered and starts reporting the measurement results.

[0097] d) The distance between the serving cell and the neighboring cell will be reported to the serving cell. If the distance between the UE and the neighboring cell is less than a configured distance value, then the distance of the neighboring cell will be reported to the serving cell.

[0098] (3) The BS receives the measurement results from the UE. The BS will decide whether to perform a handover procedure based on the measurement results.

[0099] (4) When the UE considers that the reporting event is not achieved, the UE stops reporting the measurement results.

[0100] a) When the departure conditions for the reporting event are met during the TTT, the UE considers that the reporting event is not achieved.

[0101] b) When the departure conditions for the reporting event are met during the TTT, the UE is triggered to report the measurement results and the location information of the UE.

[0102] Embodiment 2

[0103] According to Embodiment 2, the UE (e.g., Figure 1 UE 101-A and UE 101-B as described and shown therein) and the BS (e.g., Figure 1 BS 102 as described and shown therein) perform the following operations:

[0104] (1) After the UE accesses the network, the UE reports a capability indicator to the network and indicates that the UE supports measurement reporting based on combined reporting events, for example, one of measurement reporting based on location-based events + measurement reporting based on legacy events.

[0105] a) Capability indicator #1: Indicates whether the UE supports triggering measurement reporting based on location-based events.

[0106] b) Capability indicator #2: Indicates whether the UE supports triggering measurement reporting based on a combination of location-based events and measurement-based events.

[0107] (2) The network configures this UE with measurement configuration information.

[0108] a) The UE in the RRC_CONNECTED state maintains a measurement object list, a reporting configuration list, and a measurement identification list according to the measurement configuration information.

[0109] b) The BS can configure a combined reporting event (i.e., a combined trigger event) for the UE, for example, a combination of one of the following two location-based events and a legacy event.

[0110] - Location-based event 1: The serving cell becomes greater than the offset of the neighboring cell

[0111] - Location-based event 2: The distance between the UE and the source cell is greater than a threshold, and the distance between the UE and the neighboring cell is less than another threshold.

[0112] - Legacy events specified in 3GPP TS 38.331:

[0113] · Event A1 (The serving cell becomes better than the threshold)

[0114] · Event A2 (The serving cell becomes worse than the threshold)

[0115] · Event A3 (The neighboring cell becomes a better offset than the serving cell)

[0116] · Event A4 (The neighboring cell becomes better than the threshold)

[0117] · Event A5 (The serving cell becomes worse than one threshold, and the neighboring cell becomes better than another threshold)

[0118] · Event A6 (The neighboring cell becomes a better offset than the secondary cell (Scell) of the primary cell group)

[0119] For example, the BS may configure the combined reporting event as a combination of a location-based event 1 and a measurement-based triggering condition (e.g., event A3) or a combination of a location-based event 2 and a measurement-based triggering condition (e.g., event A3).

[0120] (3) The UE executes a measurement procedure based on the measurement configuration information. The UE evaluates whether the entry condition of the combined reporting event is met. If the entry condition of the combined reporting event is met during the TTT, then the UE is triggered to report the measurement result.

[0121] a) Option 1: The UE considers that the entry condition of the reporting event is met during the TTT as being achieved, and the departure condition of the reporting event being met during the TTT as not being achieved. When both events in the combined reporting event are considered "achieved", the UE determines to trigger the measurement reporting procedure.

[0122] b) Option 2: The UE considers that the entry condition of the reporting event is met during the TTT as being achieved, and the entry condition of the reporting event not being met during the TTT as not being achieved. When both events in the combined reporting event are considered "achieved", the UE determines to trigger the measurement reporting procedure.

[0123] (4) The BS receives the measurement result from the UE. The BS will decide whether to execute a handover procedure based on the measurement result.

[0124] (5) When the UE considers that the reporting event is not achieved, the UE stops reporting the measurement result.

[0125] a) Option 1: If either the measurement-based event or the location-based event is satisfied, then the UE considers the reporting event "not achieved". Then, the UE stops reporting the measurement result.

[0126] b) Option 2: Only when neither the measurement-based event nor the location-based event is satisfied does the UE consider the reporting event "not achieved". Then, the UE stops reporting the measurement result.

[0127] As Figure 1 、 3 and the details described in the embodiments illustrated and described in 4, particularly those related to handling reporting events, may be applicable to the embodiments illustrated and described in Figure 2 In addition, the details described in the embodiments of Figure 2 may be applicable to Figure 1 、 3 and all embodiments of 4.

[0128] Figure 3 Exemplary flowcharts illustrating methods for receiving measurement reports according to some embodiments of the present application. Figure 3 The embodiments ofFigure 1 executed as described and shown in BS 102). Although described with respect to BS, it should be understood that other apparatuses may be configured to perform methods similar to Figure 3 the method of.

[0129] In exemplary method 300 as shown in Figure 3 at operation 302, the BS receives an RRC reconfiguration message. The RRC reconfiguration message contains measurement configuration information. For example, the BS receives the RRC reconfiguration message from a UE (e.g., Figure 1 UE101-A and UE101-B as described and shown in

[0130] At operation 304, the BS receives a measurement report. The measurement report includes the results of measurement procedures performed by a UE (e.g., Figure 1 UE101-A and UE 101-B as described and shown in

[0131] According to some embodiments, the measurement configuration information in the RRC reconfiguration message includes a distance hysteresis parameter and a distance offset. These parameters can be used for location-based event 1. The distance offset is cell-specific and can be associated with "UE's measurement object" or "satellite".

[0132] According to some embodiments, the measurement configuration information in the RRC reconfiguration message includes a distance hysteresis parameter and two distance thresholds. These parameters can be used for location-based event 2.

[0133] In an example, the measurement configuration information in the RRC reconfiguration message includes a trigger timer (TTT).

[0134] According to some embodiments, the BS receives a capability indicator. The capability indicator can indicate whether the UE supports: location-based event 1, location-based event 2, measurement-based trigger conditions (e.g., one of events A1 to A6), a combination of measurement-based trigger conditions and location-based event 1; and / or a combination of measurement-based trigger conditions and location-based event 2. The measurement-based trigger conditions can be associated with RSRP or RSRQ.

[0135] According to some embodiments, the BS transmits a location reference point to the UE, for example. The location information of the UE is related to the location reference point.

[0136] As Figure 1 、 2 and the details described in the embodiments shown and described in 4, particularly those related to measurement configuration information, can be applied to the embodiments as shown and described in Figure 3 In addition, in Figure 3The details described in the embodiments of Figure 1 and 2 apply to all embodiments of 4.

[0137] Figure 4 Exemplary block diagrams of devices according to some embodiments of the present application are illustrated. In some embodiments of the present application, the device 400 may be a UE, which may at least perform Figure 2 the method described in Figure 3 . In some embodiments of the present application, the device 400 may be a BS, which may at least perform

[0138] As Figure 4 shown, the device 400 may include at least one receiver 402, at least one transmitter 404, at least one non-transitory computer-readable medium 406, and at least one processor 408, where the processor 408 is coupled to the at least one receiver 402, the at least one transmitter 404, and the at least one non-transitory computer-readable medium 406.

[0139] Although in Figure 4 the elements such as at least one receiver 402, at least one transmitter 404, at least one non-transitory computer-readable medium 406, and at least one processor 408 are described in the singular form, the plural form is contemplated unless explicitly stated to be limited to the singular form. In some embodiments of the present application, the at least one receiver 402 and the at least one transmitter 404 are combined into a single device, such as a transceiver. In certain embodiments of the present application, the device 400 may further include an input device, a memory, and / or other components.

[0140] In some embodiments of the present application, the at least one non-transitory computer-readable medium 406 may store computer-executable instructions thereon, which are programmed to implement operations of methods described in views such as Figure 2 or Figure 3 using the at least one receiver 402, the at least one transmitter 404, and the at least one processor 408.

[0141] Those of ordinary skill in the art should understand that the steps of the methods described in connection with the aspects disclosed herein may be embodied directly in hardware, in software modules executed by a processor, or in a combination of both. Software modules may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. Additionally, in some aspects, the operations of the methods may reside as code and / or instructions on a non-transitory computer-readable medium that may be incorporated into a computer program product, either singly or in any combination or set.

[0142] Although the present disclosure has been described with reference to specific embodiments thereof, it will be apparent that many alternatives, modifications, and variations will be obvious to those skilled in the art. For example, the various components of the embodiments may be interchanged, added, or substituted in other embodiments. Moreover, all of the elements of each figure are not necessary for the operation of the disclosed embodiments. For example, those skilled in the art will be able to form and use the teachings of the present disclosure by simply employing the elements of the independent claims. Accordingly, the embodiments of the present disclosure set forth herein are intended to be illustrative rather than limiting. Various changes may be made without departing from the spirit and scope of the present disclosure.

[0143] In this document, the term "includes / including" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element that begins with "a / an" or the like does not, without more constraints, preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element. Moreover, the term "another" is defined as at least a second or more. As used herein, the terms "has" and the like are defined as "includes".

Claims

1. An apparatus for wireless communication, which comprises: at least one non-transitory computer-readable medium storing computer-executable instructions; at least one receiving circuit system; at least one transmitting circuit system; and at least one processor coupled to the at least one non-transitory computer-readable medium, the at least one receiving circuit system, and the at least one transmitting circuit system, wherein the computer-executable instructions cause the at least one processor to implement a method, the method comprising: receiving a Radio Resource Control (RRC) reconfiguration message, wherein the RRC reconfiguration message includes measurement configuration information; performing a measurement procedure based on the measurement configuration information; determining whether one or more reporting events are satisfied, wherein the one or more reporting events trigger transmission of a measurement report; and transmitting the measurement report in response to the reporting event being satisfied, wherein the measurement configuration information includes a first distance hysteresis parameter, a second distance hysteresis parameter, a first distance threshold, a second distance threshold, and a distance offset, wherein the reporting event includes a second location-based trigger condition, wherein the second location-based trigger condition includes a second entry condition, and wherein the second entry condition includes one of the following: the difference between a first distance between a User Equipment (UE) and a serving cell and the second distance hysteresis parameter is greater than the first distance threshold; or the sum of a second distance between the UE and a neighboring cell and the second distance hysteresis parameter is less than the second distance threshold, wherein it is determined that a departure condition for the reporting event is satisfied in response to at least one of the following: the sum of the first distance and the first distance hysteresis parameter is less than the sum of the second distance and the distance offset; the sum of the first distance and the second distance hysteresis parameter is less than the first distance threshold; or the difference between the second distance and the second distance hysteresis parameter is greater than the second distance threshold.

2. The apparatus according to claim 1, wherein the measurement configuration information includes reporting configuration information, and the reporting configuration information includes the one or more reporting events.

3. The apparatus according to claim 1, wherein the measurement procedure is for measuring a serving cell and one or more neighboring cells, and at least one of the serving cell or the one or more neighboring cells is a Non-Terrestrial Network (NTN) cell.

4. The apparatus according to claim 1, wherein the reporting event includes a first location-based trigger condition, and the first location-based trigger condition is: a first distance between a User Equipment (UE) and a serving cell is greater than an offset compared to a second distance between the UE and a neighboring cell.

5. The apparatus according to claim 1, wherein the measurement configuration information includes a Trigger Timer (TTT), and determining whether one or more reporting events are satisfied further comprises: determining that the reporting event is satisfied in response to the duration for which the entry condition for the reporting event is satisfied being equal to or longer than the TTT.

6. The apparatus according to claim 1, wherein the reporting event further includes a measurement-based trigger condition, and the measurement-based trigger condition is at least one of the following: Compared with the measurement result of the serving cell, the measurement result of the neighboring cell is better by an offset; or The measurement result of the serving cell is worse than a first threshold, and the measurement result of the neighboring cell is better than a second threshold.

7. The apparatus according to claim 1, wherein the measurement configuration information includes a triggering timer TTT, and the method further comprises: Transmitting the measurement report to the serving cell in response to the departure condition of the reporting event being satisfied during the TTT.

8. The apparatus according to claim 1, which further comprises: Transmitting the measurement report to the serving cell in response to a first distance between a user equipment UE and the serving cell being less than a configured distance value.

9. The apparatus according to claim 1, wherein an upper layer of the user equipment UE maintains at least one of the following: The ephemeris of the UE; or The location information of the UE.

10. The apparatus according to claim 1, wherein an RRC layer of the user equipment UE transmits the measurement configuration information associated with the entry condition and the departure condition of the reporting event and the TTT value to the upper layer of the UE.

11. An apparatus for wireless communication, which comprises: At least one non-transitory computer-readable medium storing computer-executable instructions; At least one receiving circuit system; At least one transmitting circuit system; and At least one processor coupled to the at least one non-transitory computer-readable medium, the at least one receiving circuit system, and the at least one transmitting circuit system, wherein the computer-executable instructions cause the at least one processor to implement a method, the method comprising: Transmitting a radio resource control RRC reconfiguration message, wherein the RRC reconfiguration message includes measurement configuration information; Receiving a measurement report, wherein the measurement report includes the result of a measurement procedure performed by a user equipment UE; Determining whether to perform a handover procedure based on the result of the measurement procedure, and Receiving a capability indicator, wherein the measurement configuration information includes a first distance hysteresis parameter, a second distance hysteresis parameter, a first distance threshold, a second distance threshold, and a distance offset, wherein the capability indicator indicates whether the UE supports a second location-based triggering condition, wherein the second location-based triggering condition includes a second entry condition, and wherein the second entry condition includes one of the following: The difference between a first distance between the user equipment UE and the serving cell and the second distance hysteresis parameter is greater than the first distance threshold; or The sum of a second distance between the UE and a neighboring cell and the second distance hysteresis parameter is less than the second distance threshold, wherein it is determined that the departure condition of the second location-based triggering condition is satisfied in response to at least one of the following: The sum of the first distance and the first distance hysteresis parameter is less than the sum of the second distance and the distance offset; The sum of the first distance and the second distance hysteresis parameter is less than the first distance threshold; or The difference between the second distance and the second distance hysteresis parameter is greater than the second distance threshold.

12. The apparatus according to claim 11, wherein the distance offset is associated with at least one of a measurement object of the UE or a satellite.

13. The apparatus according to claim 11, wherein the measurement configuration information includes a triggering timer TTT.

14. The apparatus according to claim 11, wherein the capability indicator further indicates whether the UE supports at least one of the following: A first location-based triggering condition; A measurement-based triggering condition; A combination of the measurement-based triggering condition and the first location-based triggering condition; or A combination of the measurement-based triggering condition and the second location-based triggering condition.

15. A method for wireless communication, which comprises: receiving a radio resource control (RRC) reconfiguration message, wherein the RRC reconfiguration message includes measurement configuration information; performing a measurement procedure based on the measurement configuration information; determining whether one or more reporting events are satisfied, wherein the one or more reporting events trigger the transmission of a measurement report; and transmitting the measurement report in response to the satisfaction of a reporting event, wherein the measurement configuration information includes a first distance hysteresis parameter, a second distance hysteresis parameter, a first distance threshold, a second distance threshold, and a distance offset, wherein the reporting event includes a second location-based triggering condition, wherein the second location-based triggering condition includes a second entry condition, and wherein the second entry condition includes one of the following: The difference between a first distance between a user equipment (UE) and a serving cell and the second distance hysteresis parameter is greater than the first distance threshold; or The sum of a second distance between the UE and an adjacent cell and the second distance hysteresis parameter is less than the second distance threshold, wherein in response to at least one of the following, it is determined that a departure condition for the satisfaction of the reporting event is met: The sum of the first distance and the first distance hysteresis parameter is less than the sum of the second distance and the distance offset; The sum of the first distance and the second distance hysteresis parameter is less than the first distance threshold; or The difference between the second distance and the second distance hysteresis parameter is greater than the second distance threshold.

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