Patent Description:
<CIT> discloses a handover processing method and a corresponding communication device, where the terminal device determines, on the basis of a first distance and a second distance, whether a condition for triggering the processing of handover from a serving cell to a target cell is met.

Solutions are provided for User Equipment (UE) location reporting in a wireless communication system to facilitate efficiency in measurement reporting in Non-Terrestrial Networks (NTNs). A method and a UE according to the invention are defined by the independent claims, respectively. The dependent claims relate to preferred embodiments thereof.

The invention described herein can be applied to or implemented in exemplary wireless communication systems and devices described below. In addition, the invention is described mainly in the context of the 3GPP architecture reference model. However, it is understood that with the disclosed information, one skilled in the art could easily adapt for use and implement aspects of the invention in a 3GPP2 network architecture as well as in other network architectures.

The exemplary wireless communication systems and devices described below employ a wireless communication system, supporting a broadcast service. Wireless communication systems are widely deployed to provide various types of communication such as voice, data, and so on. These systems may be based on code division multiple access (CDMA), time division multiple access (TDMA), orthogonal frequency division multiple access (OFDMA), 3GPP LTE (Long Term Evolution) wireless access, 3GPP LTE-A (Long Term Evolution Advanced) wireless access, 3GPP2 UMB (Ultra Mobile Broadband), WiMax, 3GPP NR (New Radio), or some other modulation techniques.

In particular, the exemplary wireless communication systems and devices described below may be designed to support one or more standards such as the standard offered by a consortium named "3rd Generation Partnership Project" referred to herein as 3GPP, including: [<NUM>] <NPL>"; [<NUM>] <NPL>"; [<NUM>] <NPL>"; [<NUM>] <NPL>"; [<NUM>] <NPL>"; [<NUM>] <NPL>"; [<NUM>] <NPL>"; [<NUM>] <NPL>"; and [<NUM>] <NPL>". The standards and documents listed above are hereby expressly and fully incorporated herein by reference in their entirety.

<FIG> shows a multiple access wireless communication system according to one embodiment of the invention. An access network <NUM> (AN) includes multiple antenna groups, one including <NUM> and <NUM>, another including <NUM> and <NUM>, and an additional including <NUM> and <NUM>. In <FIG>, only two antennas are shown for each antenna group, however, more or fewer antennas may be utilized for each antenna group. Access terminal (AT) <NUM> is in communication with antennas <NUM> and <NUM>, where antennas <NUM> and <NUM> transmit information to access terminal <NUM> over forward link <NUM> and receive information from AT <NUM> over reverse link <NUM>. AT <NUM> is in communication with antennas <NUM> and <NUM>, where antennas <NUM> and <NUM> transmit information to AT <NUM> over forward link <NUM> and receive information from AT <NUM> over reverse link <NUM>. In a FDD system, communication links <NUM>, <NUM>, <NUM> and <NUM> may use different frequency for communication. For example, forward link <NUM> may use a different frequency than that used by reverse link <NUM>.

In communication over forward links <NUM> and <NUM>, the transmitting antennas of access network <NUM> may utilize beamforming in order to improve the signal-to-noise ratio of forward links for the different access terminals <NUM> and <NUM>. Also, an access network using beamforming to transmit to access terminals scattered randomly through its coverage normally causes less interference to access terminals in neighboring cells than an access network transmitting through a single antenna to all its access terminals.

The AN may be a fixed station or base station used for communicating with the terminals and may also be referred to as an access point, a Node B, a base station, an enhanced base station, an eNodeB, or some other terminology. The AT may also be called User Equipment (UE), a wireless communication device, terminal, access terminal or some other terminology.

<FIG> is a simplified block diagram of an embodiment of a transmitter system <NUM> (also known as the access network) and a receiver system <NUM> (also known as access terminal (AT) or user equipment (UE)) in a MIMO system <NUM>. At the transmitter system <NUM>, traffic data for a number of data streams is provided from a data source <NUM> to a transmit (TX) data processor <NUM>.

Preferably, each data stream is transmitted over a respective transmit antenna. TX data processor <NUM> formats, codes, and interleaves the traffic data for each data stream based on a particular coding scheme selected for that data stream to provide coded data.

The coded data for each data stream may be multiplexed with pilot data using OFDM techniques. The pilot data is typically a known data pattern that is processed in a known manner and may be used at the receiver system to estimate the channel response. The multiplexed pilot and coded data for each data stream is then modulated (e.g., symbol mapped) based on a particular modulation scheme (e.g., BPSK, QPSK, M-PSK, or M-QAM) selected for that data stream to provide modulation symbols. The data rate, coding, and modulation for each data stream may be determined by instructions performed by processor <NUM>. A memory <NUM> is coupled to processor <NUM>.

At receiver system <NUM>, the transmitted modulated signals are received by NR antennas 252a through 252r and the received signal from each antenna <NUM> is provided to a respective receiver (RCVR) 254a through 254r. Each receiver <NUM> conditions (e.g., filters, amplifies, and downconverts) a respective received signal, digitizes the conditioned signal to provide samples, and further processes the samples to provide a corresponding "received" symbol stream.

Memory <NUM> may be used to temporarily store some buffered/computational data from <NUM> or <NUM> through Processor <NUM>, store some buffed data from <NUM>, or store some specific program codes. And Memory <NUM> may be used to temporarily store some buffered/computational data from <NUM> through Processor <NUM>, store some buffed data from <NUM>, or store some specific program codes.

Turning to <FIG>, this figure shows an alternative simplified functional block diagram of a communication device according to one embodiment of the invention. As shown in <FIG>, the communication device <NUM> in a wireless communication system can be utilized for realizing the UEs (or ATs) <NUM> and <NUM> in <FIG>, and the wireless communications system is preferably the NR system. The communication device <NUM> may include an input device <NUM>, an output device <NUM>, a control circuit <NUM>, a central processing unit (CPU) <NUM>, a memory <NUM>, a program code <NUM>, and a transceiver <NUM>. The control circuit <NUM> executes the program code <NUM> in the memory <NUM> through the CPU <NUM>, thereby controlling an operation of the communications device <NUM>. The communications device <NUM> can receive signals input by a user through the input device <NUM>, such as a keyboard or keypad, and can output images and sounds through the output device <NUM>, such as a monitor or speakers. The transceiver <NUM> is used to receive and transmit wireless signals, delivering received signals to the control circuit <NUM>, and outputting signals generated by the control circuit <NUM> wirelessly.

<FIG> is a simplified block diagram of the program code <NUM> shown in <FIG> in accordance with an embodiment of the invention. In this embodiment, the program code <NUM> includes an application layer <NUM>, a Layer <NUM> portion <NUM>, and a Layer <NUM> portion <NUM>, and is coupled to a Layer <NUM> portion <NUM>. The Layer <NUM> portion <NUM> generally performs radio resource control. The Layer <NUM> portion <NUM> generally performs link control. The Layer <NUM> portion <NUM> generally performs physical connections.

For LTE, LTE-A, or NR systems, the Layer <NUM> portion <NUM> may include a Radio Link Control (RLC) layer and a Medium Access Control (MAC) layer. The Layer <NUM> portion <NUM> may include a Radio Resource Control (RRC) layer.

Any two or more than two of the following paragraphs, (sub-)bullets, points, actions, or claims described in each invention paragraph or section may be combined logically, reasonably, and properly to form a specific method.

Any sentence, paragraph, (sub-)bullet, point, action, or claim described in each of the following invention paragraphs or sections may be implemented independently and separately to form a specific method or apparatus. Dependency, e.g., "based on", "more specifically", "example", etc., in the following invention disclosure is just one possible embodiment which would not restrict the specific method or apparatus.

The description of the work item of non-terrestrial networks (NTN) in NR is specified in [<NUM>] RP-<NUM>, "Solutions for NR to support non-terrestrial networks (NTN)":.

The following control plane procedures enhancements should be specified (see TR <NUM>).

The measurement report and related configurations are specified in [<NUM>] <NPL>" as below:.

The network may configure an RRC_CONNECTED UE to perform measurements. The network may configure the UE to report them in accordance with the measurement configuration or perform conditional reconfiguration evaluation in accordance with the conditional reconfiguration. The measurement configuration is provided by means of dedicated signalling i.e. using the RRCReconfiguration or RRCResume.

The network may configure the UE to perform the following types of measurements:.

The network may configure the UE to report the following measurement information based on SS/PBCH block(s):.

The network may configure the UE to report the following measurement information based on CSI-RS resources:.

The measurement configuration includes the following parameters:.

A UE in RRC_CONNECTED maintains a measurement object list, a reporting configuration list, and a measurement identities list according to signalling and procedures in this specification. The measurement object list possibly includes NR measurement object(s), CLI measurement object(s) and inter-RAT objects. Similarly, the reporting configuration list includes NR and inter-RAT reporting configurations. Any measurement object can be linked to any reporting configuration of the same RAT type. Some reporting configurations may not be linked to a measurement object. Likewise, some measurement objects may not be linked to a reporting configuration.

The measurement procedures distinguish the following types of cells:.

For NR measurement object(s), the UE measures and reports on the serving cell(s), listed cells and/or detected cells. For inter-RAT measurements object(s) of E-UTRA, the UE measures and reports on listed cells and detected cells and, for RSSI and channel occupancy measurements, the UE measures and reports on the configured resources on the indicated frequency. For inter-RAT measurements object(s) of UTRA-FDD, the UE measures and reports on listed cells. For CLI measurement object(s), the UE measures and reports on configured measurement resources (i.e. SRS resources and/or CLI-RSSI resources).

Whenever the procedural specification, other than contained in sub-clause <NUM>. <NUM>, refers to a field it concerns a field included in the VarMeasConfig unless explicitly stated otherwise i.e. only the measurement configuration procedure covers the direct UE action related to the received measConfig.

An RRC _CONNECTED UE shall derive cell measurement results by measuring one or multiple beams associated per cell as configured by the network, as described in <NUM>. For all cell measurement results, except for RSSI, and CLI measurement results in RRC_CONNECTED, the UE applies the layer <NUM> filtering as specified in <NUM>. <NUM>, before using the measured results for evaluation of reporting criteria, measurement reporting or the criteria to trigger conditional reconfiguration execution. For cell measurements, the network can configure RSRP, RSRQ, SINR, RSCP or EcN0 as trigger quantity. For CLI measurements, the network can configure SRS-RSRP or CLI-RSSI as trigger quantity. For cell and beam measurements, reporting quantities can be any combination of quantities (i.e. only RSRP; only RSRQ; only SINR; RSRP and RSRQ; RSRP and SINR; RSRQ and SINR; RSRP, RSRQ and SINR; only RSCP; only EcN0; RSCP and EcN0), irrespective of the trigger quantity, and for CLI measurements, reporting quantities can be either SRS-RSRP or CLI-RSSI. For conditional reconfiguration execution, the network can configure up to <NUM> quantities, both using same RS type. The UE does not apply the layer <NUM> filtering as specified in <NUM>. <NUM> to derive the CBR measurements.

The network may also configure the UE to report measurement information per beam (which can either be measurement results per beam with respective beam identifier(s) or only beam identifier(s)), derived as described in <NUM>. If beam measurement information is configured to be included in measurement reports, the UE applies the layer <NUM> beam filtering as specified in <NUM>. On the other hand, the exact L1 filtering of beam measurements used to derive cell measurement results is implementation dependent.

If AS security has been activated successfully, the UE shall:
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<FIG> is a reproduction of Figure <NUM>. <NUM>-<NUM>: Measurement reporting, from <NPL>.

The purpose of this procedure is to transfer measurement results from the UE to the network. The UE shall initiate this procedure only after successful AS security activation. <IMG>
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For beam measurement information to be included in a measurement report the UE shall:
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The IE CommonLocationlnfo is used to transfer detailed location information available at the UE to correlate measurements and UE position information.

The IE LocationInfo is used to transfer available detailed location information, Bluetooth, WLAN and sensor available measurement results at the UE.

The IE MeasConfig specifies measurements to be performed by the UE, and covers intra-frequency, inter-frequency and inter-RAT mobility as well as configuration of measurement gaps. <IMG>
<IMG>.

************************************* Next Quotation *************************************.

The IE MeasId is used to identify a measurement configuration, i.e., linking of a measurement object and a reporting configuration.

The IE MeasResults covers measured results for intra-frequency, inter-frequency, inter-RAT mobility and measured results for sidelink. <IMG>
<IMG>
<IMG>.

The IE ReportConfigNR specifies criteria for triggering of an NR measurement reporting event or of a CHO or CPC event. For events labelled AN with N equal to <NUM>, <NUM> and so on, measurement reporting events and CHO or CPC events are based on cell measurement results, which can either be derived based on SS/PBCH block or CSI-RS.

For event <NUM>, measurement reporting event is based on CLI measurement results, which can either be derived based on SRS-RSRP or CLI-RSSI.

Event <NUM>: Interference becomes higher than absolute threshold. <IMG>
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The IE ReportConfigToAddModList concerns a list of reporting configurations to add or modify.

The NTN status report including agreements from 3GPP RAN2 #<NUM> meeting is quoted as below from [<NUM>] <NPL>":.

If the reported content of information about UE specific TA is UE location information in connected mode, RRC signalling is used to report.

Under the work assumption "the UE location information can be reported in connected mode", for TA reporting purposes in connected mode, the network can configure the UE to send either the UE specific TA pre-compensation (for the details of the TA value, confirmation from RAN1 is needed) or the UE location information.

Working Assumptions: Specify that measurement reports can be configured to be piggybacked with location report when location based event triggers it.

After AS security is established, gNB can obtain a GNSS-based location information from the UE using existing signalling method, i.e., by configuring includeCommonLocationInfo in the corresponding reportConfig. It is up to SA3 to decide whether User Consent is required before NW acquires location information from the UE in NTN. RAN2 discuss whether to send LS to SA3.

Aperiodic location reporting (e.g., via DCI) is not supported. Working assumption: Event triggered-based UE location reporting are configured by gNB to obtain UE location update of mobile UEs in RRC_CONNECTED.

Send new LS to SA3 for the need of NTN specific user consent for obtaining UE location by gNB.

If accepted by SA3, if the gNB has user consent to obtain UE location in NTN, reporting of finer location information/full GNSS coordinates in RRC _CONNECTED can be supported after AS security is enabled.

Periodic location reporting can also be configured by gNB to obtain UE location update of mobile UEs in RRC_CONNECTED. RAN2 discuss whether it is part of existing periodic measurement report configuration or a new configuration for periodic reporting of UE location.

The measurement report, SMTC and some related configurations are specified in [<NUM>] <NPL>" with a NTN running CR, e.g., [<NUM>] <NPL>" as below:.

The UE shall setup the first SS/PBCH block measurement timing configuration (SMTC) in accordance with the received periodicityAndOffset parameter (providing Periodicity and Offset value for the following condition) in the smtc1 configuration. The first subframe of each SMTC occasion occurs at an SFN and subframe of the NR SpCell meeting the following condition:
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If smtc2 is present, for cells indicated in the pci-List parameter in smtc2 in the same MeαsObjectNR, the UE shall setup an additional SS/PBCH block measurement timing configuration (SMTC) in accordance with the received periodicity parameter in the smtc2 configuration and use the Offset (derived from parameter periodicityAndOffset) and duration parameter from the smtc1 configuration. The first subframe of each SMTC occasion occurs at an SFN and subframe of the NR SpCell meeting the above condition.

If smtc2-LP is present, for cells indicated in the pci-List parameter in smtc2-LP in the same frequency (for intra frequency cell reselection) or different frequency (for inter frequency cell reselection), the UE shall setup an additional SS/PBCH block measurement timing configuration (SMTC) in accordance with the received periodicity parameter in the smtc2-LP configuration and use the Offset (derived from parameter periodicityAndOffset) and duration parameter from the smtc configuration for that frequency. The first subframe of each SMTC occasion occurs at an SFN and subframe of the NR SpCell or serving cell (for cell reselection) meeting the above condition.

If smtc3list is present, for cells indicated in the pci-List parameter in each SSB-MTC3 element of the list in the same MeasObjectNR, the IAB-MT shall setup an additional SS block measurement timing configuration in accordance with the received periodicityAndOffset parameter (using same condition as smtc1 to identify the SFN and the subframe for SMTC occasion) in each SSB-MTC3 configuration and use the duration and ssb-ToMeasure parameters from each SSB-MTC3 configuration.

On the indicated ssbFrequency, the UE shall not consider SS/PBCH block transmission in subframes outside the SMTC occasion for RRM measurements based on SS/PBCH blocks and for RRM measurements based on CSI-RS except for SFTD measurement (see TS <NUM> [<NUM>], subclause <NUM>.

The IE MeαsObjectNR specifies information applicable for SS/PBCH block(s) intra/inter-frequency measurements and/or CSI-RS intra/inter-frequency measurements. <IMG>
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Event <NUM>: Interference becomes higher than absolute threshold. <IMG>
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The IE SSB-MTC is used to configure measurement timing configurations, i.e., timing occasions at which the UE measures SSBs.

In addition, the following agreements have also been reached in the past 3GPP RAN2 meetings, e.g., [<NUM>] <NPL>" and [<NUM>] <NPL>":.

Non-terrestrial networks (NTN) are to be introduced in New Radio (NR) to use an airborne/spaceborne vehicle as a platform for providing mobile services (e.g., [<NUM>] RP-<NUM>). The User Equipment (UE) may link to, camp on, and/or connect to the NTN network that involves airborne/spaceborne for transmission. The NTN may comprise various platforms, including low earth orbit (LEO) satellite, medium earth orbit (MEO) satellite, highly elliptical orbit (HEO) satellite, geostationary earth orbit (GEO) satellite, geostationary synchronous Orbit (GSO) satellite, non-geostationary synchronous orbit (NGSO) satellite, and/or high altitude platform station (HAPS). A LEO satellite could have an earth-fixed beam (e.g., the beam is temporarily fixed on a location during a time period) or an earth-moving beam (e.g., the beam is continuously moving along with the satellite). The NTN could offer a wide-area coverage and provide network (NW) access in the scenario when terrestrial networks (TN) are unfeasible (e.g., desert, polar area, and/or on an airplane). More details regarding different NTN platforms can be found in TR <NUM> (e.g., [<NUM>] 3GPP TR <NUM> V16.

In NTN, a Cell Identity (ID) used on Uu System Information Block (SIB) content (and probably on Xn) would be decoupled from cell ID used on NG/N2 interface. And the NW is required to acquire the UE's location information to derive/map the Cell ID (e.g., [<NUM>] R2-<NUM>). In the 3GPP RAN2 meeting (e.g., [<NUM>] RP-<NUM>), it has been agreed that the UE could report coarse location information during initial access in Msg5 (e.g., via RRCSetupComplete, RRCResumeComplete). The coarse location information would be coarse and/or truncated Global Navigation Satellite System (GNSS) coordinates. And after AS security is established, the UE could report (finer) GNSS-based location information using measurement report (e.g., in includeCommonLocationInfo (e.g., in [<NUM>] 3GPP TS <NUM> V16. The UE could be configured by NW to provide UE location information (e.g., CommonLocationlnfo (e.g., in [<NUM>] 3GPP TS <NUM> V16. <NUM>)) in Radio Resource Control connected state (RRC_CONNECTED_state) via (location) event triggered-based report and/or periodic (location) report. The User Consent would be needed for the UE to provide the UE location information (e.g., coarse location information, finer location information), which would be decided by 3GPP SA3.

For the measurement repot in RRC_CONNECTED, a UE could be configured by NW to measure multiple beams (at least one) of a cell to derive the cell quality. A UE could be configured by NW to measure the distance between the UE and a reference location (e.g., cell center, referenceLocationl, referenceLocation2 (e.g., in [<NUM>] R2-<NUM>)) of a NTN cell. The (NTN) cell may be a serving cell and/or a neighbor cell. The UE could be configured by the NW to initiate a measurement report based on event-triggering and/or a configured period. When a triggering event (e.g., criteria/condition for a triggering event) based on the measurement results is met, the UE would initiate a measurement reporting procedure to send the measurement results to the NW. When a triggering event (e.g., criteria/condition for a triggering event) is met, the UE would trigger a measurement report and/or initiate a measurement reporting procedure. When a triggering event (e.g., criteria/condition for a triggering event) is met, the UE would set a measurement report including measurement results. The triggering events may be that the radio condition of a serving cell and/or neighbor cell becomes better/worse than a threshold. The triggering events may be that the distance between the UE and (the reference point of) a serving cell and/or neighbor cell becomes larger/smaller than a threshold. The threshold may be an absolute threshold and/or an amount of offset. On the other hand, when a periodical reporting timer expires, the UE would initiate a measurement reporting procedure to send the measurement results to the NW. The details regarding measurement report could be found in TS <NUM> (e.g., [<NUM>] 3GPP TS <NUM> V16. <NUM>) and aNTN running CR for TS <NUM> (e.g., [<NUM>] R2-<NUM>).

One or more location-based triggering events would be defined for NTN. When the event (e.g., entry condition of the event, and/or leaving condition of the event) is fulfilled, a measurement report could be triggered by the UE. The measurement report could include the latest measurement result(s) of the UE. As shown in <FIG>, a location-based triggering event may be based on the distance between the UE and/or a first reference location (e.g., cell center) of a serving cell and the distance between the UE and a second reference location (e.g., cell center) of a neighbor cell.

A first location-based triggering event may be triggered by (or based on) the distance between the UE and a reference location (e.g., cell center) of a serving cell. For example, if the UE detects that the distance between the UE and the reference location of the serving cell becomes larger than a first threshold (e.g., provided in the configuration of the first location-based triggering event), the UE may consider the entering condition for this first event to be satisfied (for this serving cell). Alternatively and/or additionally, if the UE detects that the distance between the UE and the reference location of the serving cell becomes smaller than the first threshold, the UE may consider the leaving condition for this first event to be satisfied (for this serving cell).

A second location-based triggering event may be triggered by (or based on) the distance between the UE and a reference location (e.g., cell center) of a neighbor cell. For example, if the UE detects that the distance between the UE and the reference location of the neighbor cell becomes smaller than a second threshold (e.g., provided in the configuration of the second location-based triggering event), the UE may consider the entering condition for this second event to be satisfied (for the neighbor cell). Alternatively and/or additionally, if the UE detects that the distance between the UE and the reference location (e.g., cell center) of the neighbor cell becomes larger than the second threshold, the UE may consider the leaving condition for this second event to be satisfied (for the neighbor cell).

A third location-based triggering event may be triggered by (or based on) the distance between the UE and a reference location (e.g., cell center) of a serving cell and the distance between the UE and a reference location (e.g., cell center) of a neighbor cell. For example, if the UE detects that the distance between the UE and the reference location of the serving cell becomes larger than a first threshold (e.g., provided in configuration of the third location-based triggering event) and the distance between the UE and the reference location of the neighbor cell becomes smaller than a second threshold (e.g., provided in configuration of the third location-based triggering event), the UE may consider the entering condition for this third event to be satisfied. Alternatively and/or additionally, if the UE detects that the distance between the UE and the reference location of the serving cell becomes smaller than the first threshold and the distance between the UE and the reference location (e.g., cell center) of the neighbor cell becomes larger than the second threshold, the UE may consider the leaving condition for this third event to be satisfied.

When the entering condition and/or leaving condition for a location-based triggering event is satisfied, the UE may consider the location-based triggering event is fulfilled/triggered. When the entering condition and/or leaving condition for a location-based triggering event is satisfied, the UE may trigger a measurement report.

The reference location of a cell may be the geographic location of the cell. The reference location of a cell may be the cell center (e.g., on the ground). The reference location of a cell may be a virtual location defined by the network (e.g., the geographical area is split into rectangular grids and the reference location is represented by indices of the grid). The location-based triggering event(s) may be (triggered by and/or based on) at least one or more of the following conditions:.

On the other hand, several measurement events based on radio condition has been defined in current NR RRC (e.g., [<NUM>] 3GPP TS <NUM> V16. The radio condition-based triggering events could be (triggered by and/or based on) at least one or more of the following conditions:.

A combination of one or more above measurement triggering events may be possible. A combination of different types of measurement triggering event may be possible. For example, a measurement event could be based on both the location information and the radio condition. For example, a measurement event could be defined by combining one of the legacy measurement events (e.g., event A1, A2, A3, A4, A5, and/or A6) and one of the location-based measurement events as described above. In this case, for example, the UE considers the entering condition to be satisfied when the entering conditions of the combined two events are both satisfied, and the UE considers the leaving condition to be satisfied when the leaving conditions of the combined two events are both satisfied.

For the purpose of UE location requirements (e.g., for the NW to derive Cell ID) in NTN, a UE needs to report its location information to the network in a NTN cell. The UE would be configured to report UE location information in RRC_CONNECTED state. The UE location information may be included in a RRC message (e.g., RRCSetupComplete, RRCResumeComplete, MeasurementReport). The UE may be configured to provide a UE location report to the network. The UE location report may be included in a measurement report. The measurement report (or UE location report) may be triggered based on an event and/or periodically. According to the current specification (e.g., NR RRC specification TS <NUM> (e.g., [<NUM>] 3GPP TS <NUM> V16. <NUM>)), a measurement report may include a variety of information in addition to the UE location (e.g., measurement result(s) of serving cell(s), measurement result(s) of neighbor cell(s), beam measurement result(s), best non-serving cell on a frequency, etc.). The information may be used to assist the NW for the handover decision (e.g., when to handover, which target cell to handover).

For example, as shown in <FIG>, when a measurement report is triggered by a radio condition-based triggering event (e.g., Event A5) based on a serving cell and neighbor cell, the UE may transmit the measurement report including the measurement result for the serving cell and the measurement result for the neighbor cell triggering the condition-based triggering event. If the UE is configured to report UE location, the UE location information is included in the measurement report. Similarly, as shown in <FIG>, when a measurement report is triggered by a location-based event based on the serving cell and neighbor cell, the UE may transmit the measurement report including measurement result for the serving cell, measurement result for the neighbor cell triggering the location-based event, and the UE location information. However, the location-based triggering event is used for NTN where a Reference Signal Received Power (RSRP) result may be less reliable, the RSRP measurement results for the serving cell and/or neighbor cell may be less useful in a measurement report triggered by the location-based event. When a measurement report is triggered (e.g., based on a triggering event and/or a periodical reporting timer as specified in TS <NUM> (e.g., [<NUM>] 3GPP TS <NUM> V16. <NUM>)) which may be for the purpose of location requirement, at least some information other than the UE location information in the measurement report may be less useful. For example, the measurement result(s) of neighbor cell(s) may not be useful, e.g., when the UE is not in the cell edge. For example, the measurement result(s) of serving cell quality may not differ too much in a NTN cell due to near-far effect as specified in TR <NUM> (e.g., [<NUM>] 3GPP TR <NUM> V16. Moreover, for a fast-moving UE, the UE may need to report the location information more frequently while at least some other information in the measurement report may be not changed (or not change too much). For the purpose of location reporting, if the UE reports whole measurement report with the configured information, signaling overhead may be significant. In addition, for a measurement report triggered by a location-based triggering event, the network could make handover decisions based on UE location information (if reported) or based on the measurement ID associated to the location-based event. Some methods to reduce the signaling overhead should be considered.

To solve the issue, the information included in a measurement report (or UE location report) could be different when the report is triggered for (the purpose of) location reporting and when the report is triggered for (the purpose of) cell/beam quality reporting. A measurement report (or UE location report) may be a report including a UE location. A first measurement report (or UE location report) may be triggered for location reporting. A second measurement report (or UE location report) may be triggered for cell/beam quality reporting.

A first information could be omitted (e.g., not provided, not included) in the first measurement report (or UE location report). The UE may omit (at least) one or more first information in the first measurement report (or UE location report). The UE may not provide and/or include (at least) one or more first information in the measurement report (or UE location report). The UE may provide and/or include (at least) one or more first information in the measurement report (or UE location report). A second information may be provided and/or included in the first measurement report (or UE location report). The UE may provide and/or include (at least) one or more second information in the first measurement report (or UE location report). The UE may provide and/or include one or more second information in a measurement report (or UE location report) and not provide and/or include one or more first information in the measurement report (or UE location report).

The first measurement report (or UE location report) and the second measurement report (or UE location report) may be differentiated based on a configuration. For example, the first measurement report may be triggered based on a first configuration. The second measurement report may be triggered based on a second configuration. The first configuration is different from the second configuration. The first configuration and/or the second configuration may be at least one of configurations specified in, e.g., periodic trigger, event trigger, location-based, measurement-based.

The first measurement report (or UE location report) and the second measurement report (or UE location report) may be differentiated based on a trigger of the report. For example, the first report may be triggered by a first trigger. The second report may be triggered by a second trigger. The first trigger is different from the second trigger. The first trigger and/or the second trigger may be at least one of triggers specified in the following (e.g., periodic trigger, event trigger, location-based, measurement-based).

The first measurement report (or UE location report) and the second measurement report (or UE location report) may be differentiated based on a cell type. The cell may be a serving cell of the UE. For example, the first report may be triggered when a serving cell of the UE is of a first type. The second report may be when a serving cell of the UE is of a second type. The first type is different from the second type. The first type and/or the second type may be at least one of the types specified in, e.g., a specific NW type, a specific NTN type.

The first measurement report (or UE location report) and the second measurement report (or UE location report) may be differentiated based on location of the UE. For example, the first report may be triggered when the UE is in a first location. The second report may be when the UE is in a second location. The first location is different from the second location. The first location and/or the second location may be at least one of the locations specified in, e.g., cell edge, cell center, distance from a reference location.

The first measurement report (or UE location report) may be triggered for the purpose of location reporting. The first measurement report (or UE location report) may be triggered based on a configuration for location report. The first measurement report (or UE location report) may be triggered by a location-based triggering event. The first measurement report (or UE location report) may be triggered based on a location-based triggering event. The first measurement report (or UE location report) may be triggered based on the period for UE location report. The first measurement report (or UE location report) may be triggered when a periodic timer (e.g., for UE location report) expires. The first measurement report (or UE location report) may be triggered when the serving cell is of a specific NTN type (e.g., LEO, MEO, HEO, GEO, GSO, NGSO, HAPS) and/or of a specific NW type (e.g., NTN, TN). The first measurement report (or UE location report) may be triggered when the UE is in cell center (e.g., distance from a reference location is not larger than a threshold).

For example, the UE may trigger a first measurement report when the distance between the UE and a reference location (e.g., referenceLocation1 (e.g., in [<NUM>] R2-<NUM>) of the serving cell becomes larger than a threshold (e.g., Thresh1 (e.g., in [<NUM>] R2-<NUM>)) and the distance between the UE and a reference location (e.g., referenceLocation2 (e.g., in [<NUM>] R2-<NUM>)) of a neighbor cell becomes shorter than another threshold (e.g., Thresh2 (e.g., in [<NUM>] R2-<NUM>)).

The first information may be a measurement result based on radio condition. The first information may be radio condition measurement result(s). The first information may be cell quality of a serving cell and/or neighbor cell(s). The first information may be measurement results of (radio condition of) a serving cell and/or a neighbor cell. The first information may be measurement results of (radio condition of) the cell (e.g., serving cell and/or neighbor cell) triggering a measurement report. The first information may be measurement results of (radio condition of) the cell (e.g., serving cell and/or neighbor cell) triggered/fulfilled triggering event. The first information may be measurement result(s) of beam measurement result(s) of one or more cells. The first information may be derived from SSB and/or Channel State Information Reference Signal (CSI-RS). The first information may be represented by RSRP, Reference Signal Received Quality (RSRQ) and/or Signal Interference plus Noise Ratio (SINR). The first information may be the best non-serving cell on a frequency. The first information may be a list of beams and/or cells.

The second information may be UE location information (e.g., CommonLocationlnfo (e.g., in [<NUM>] 3GPP TS <NUM> V16. The second information may be a measurement result based on UE location. The second information may be a measurement result based on the distance between the UE and a reference location. The second information may be location measurement result(s). The second information may be the distance between the UE and a serving cell and/or a neighbor cell. The second information may be a GNSS-based location information. The second information may be the GNSS coordinates of the UE. The second information may be a distance (e.g., in km) between the UE and a cell center. The second information may be a distance (e.g., in km) between the UE and the last reported UE location. The second information may be a Timing Advance (TA) value. The second information may be TA difference (from the last reported TA).

The first information may not be omitted (e.g., may be provided, and/or included) in a second measurement report. The second information may be and/or not be provided/included in the second measurement report. The UE may not omit the first information in the second measurement report. The UE may provide and/or include the first information in the second measurement report. The UE may provide and/or include the second information in the second measurement report. The UE may not provide and/or include the second information in the second measurement report.

The second measurement report may be triggered for the purpose of cell/beam quality reporting. The second measurement report may be triggered based on a configuration for radio condition report. The second measurement report may be triggered by a radio condition-based measurement event. The second measurement report (or UE location report) may be triggered based on a radio condition-based triggering event. The second measurement report may be triggered based on a period for radio condition report. The second measurement report may be triggered when a periodic timer (e.g., for radio condition report) expires. The second measurement report (or UE location report) may be triggered when the UE is in cell edge (e.g., distance from a reference location is larger than a threshold).

In one example, the UE may receive a first configuration to trigger measurement reporting based on a first event (e.g. location-based triggering event (e.g., eventD1)). The UE may receive a second configuration to trigger measurement reporting based on a second event (e.g., radio condition-based triggering event (e.g., eventA5)). The first event (e.g., location-based triggering event) may be triggered/fulfilled when the distance between the UE and a first reference location of a serving cell (e.g., referenceLocation1) becomes larger than a distance threshold and the distance between the UE and a second reference location of a first neighbor cell (e.g., referenceLocation2) becomes shorter than another distance threshold. The first neighbor cell may be a (candidate) target cell of the first event (e.g., location-based triggering event (e.g., eventD1)). The second event (e.g., radio condition-based triggering event) may be triggered/fulfilled when the measurement results (of radio condition) of the serving cell (or PCell) becomes worse than a RSRP threshold and the measurement results (of radio condition) of a second neighbor cell becomes better than another RSRP threshold. The first neighbor cell and the second neighbor cell may be different neighbor cells. The first neighbor cell and the second neighbor cell may be same neighbor cell. The first neighbor cell and the second neighbor cell may be a cell neighboring to the serving cell.

As shown in <FIG>, the UE may trigger a first measurement report based on the first event (e.g., location-based triggering event (e.g., eventD1)). The UE may trigger a first measurement report when the distance between the UE and the first reference location of the serving cell (e.g., referenceLocation1) becomes larger than the distance threshold and the distance between the UE and the second reference location of the first neighbor cell (e.g., referenceLocation2) becomes shorter than the another distance threshold. The UE may not include measured radio condition of the first neighbor cell in the first measurement report. The measured radio condition of the first neighbor cell may be omitted or not included in the first measurement report. The UE may include measured radio condition of the serving cell in the first measurement report. The measured radio condition of the serving cell may be not omitted or be included in the first measurement report. The UE may include a (coarse) location information (of the UE) in the first measurement report, e.g., if configured by the network. The (coarse) location information (of the UE) may be included in the first measurement report, e.g., if configured by the network. The UE may not include the (coarse) location information (of the UE) in the first measurement report, e.g., if not configured by the network. The (coarse) location information (of the UE) may be not included in the first measurement report, e.g., if not configured by the network. The UE may transmit the first measurement report to the network.

The UE may trigger a second measurement report based on the second event (e.g., radio condition-based triggering event (e.g., eventA5)). The UE may trigger a second measurement report when the measurement results (of radio condition) of the serving cell (or PCell) becomes worse than the RSRP threshold and the measurement results (of radio condition) of the second neighbor cell becomes better than the another RSRP threshold. The UE may include measured radio condition of the second neighbor cell in the second measurement report. The measured radio condition of the second neighbor cell may be not omitted or be included in the second measurement report. The UE may include measured radio condition of the serving cell in the second measurement report. The measured radio condition of the serving cell may be not omitted or be included in the second measurement report. The UE may include a (coarse) location information (of the UE) in the second measurement report, e.g., if configured by the network. The (coarse) location information (of the UE) may be included in the second measurement report, e.g., if configured by the network. The UE may not include the (coarse) location information (of the UE) in the second measurement report, e.g., if not configured by the network. The (coarse) location information (of the UE) may be not included in the second measurement report, e.g., if not configured by the network. The UE may transmit the second measurement report to the network.

The UE may omit (at least) one or more first information in the first measurement report (or UE location report) if the content of the one or more first information is the same as the content reported last time. The UE may omit (at least) one or more first information in the first measurement report (or UE location report) if the content of the one or more of first information is not above a threshold. The UE may omit (at least) one or more first information in the first measurement report (or UE location report) if a timer (e.g., periodic timer) is not running. The UE may omit (at least) one or more first information in the first measurement report (or UE location report) if receiving a NW indication.

Throughout the disclosure, one, some, and/or all instances of "below a threshold" may correspond to, may be supplemented with, and/or may be replaced by "shorter than a threshold" and/or "smaller than a threshold". Throughout the disclosure, one, some, and/or all instances of "above a threshold" may correspond to, may be supplemented with, and/or may be replaced by "longer than a threshold" and/or "larger than a threshold".

Throughout the disclosure, one, some, and/or all instances of "triggering event" may correspond to, may be supplemented with, and/or may be replaced by "event", "measurement event", "measurement triggering event" and/or "measurement report triggering event". The triggering event may be an event to trigger measurement report.

Throughout the disclosure, one, some, and/or all instances of "(UE) location information" may correspond to, may be supplemented with, and/or may be replaced by "UE location". The UE location information may be a coarse and/or a finer location information. The UE location information may be a GNSS-based location information. The UE location information may be GNSS coordinate(s) and/or part of GNSS coordinate(s). The UE location information may be locationInfo, commonLocationInfo and/or locationCoordinate as specified in TS <NUM> (e.g., [<NUM>] 3GPP TS <NUM> V16.

The cell quality may be the radio condition and/or signaling strength of a cell, measured/derived by the UE. The cell quality and/or radio condition of a cell/beam may be with respect to SSB and/or CSI-RS. The cell quality and/or radio condition of a cell/beam may be represented by RSRP, RSRQ, and/or SINR.

The UE may receive one or more measurement reporting configurations (e.g., MeasConfig, ReportConfigNR) comprising a triggering event (e.g., eventA1, eventA2, eventA3, eventA4, eventA5, eventD1) and/or an interval (e.g., ReportInterval) of a periodic timer, for location report and/or radio condition report. The UE may receive configurations related to location-based and/or radio condition-based measurement (report).

The UE may be in a cell of a NTN. The UE may be connected to a cell of a NTN. The UE may be connected to a LEO, GEO, MEO, HEO, and/or HAPS. Throughout the disclosure, a cell may be, may refer to a NTN cell.

The UE may be referred to as the UE or a RRC entity of the UE.

The UE may be a NR device. The UE may be a NR-light device. The UE may be a reduced capability device. The UE may be a mobile phone. The UE may be a wearable device. The UE may be a sensor. The UE may be a stationary device.

The network may be a network node. The network may be a base station. The network may be an access point. The network may be an eNB. The network may be a gNB. The network may be a gateway.

Referring to <FIG>, with this and other concepts, systems, and methods of the present invention, a method <NUM> for a UE in a wireless communication system comprises receiving a first configuration of measurement reporting and a second configuration of measurement reporting from a NW (step <NUM>), triggering a first measurement report based on the first measurement reporting configuration, wherein a first information is provided in the first measurement report (step <NUM>), and triggering a second measurement report based on the second measurement reporting configuration, wherein the first information is not provided in the second measurement report (step <NUM>).

In various embodiments, the first information may be one or more measurement results based on radio condition.

In various embodiments, the first measurement report is triggered for (the purpose of) cell/beam quality reporting.

In various embodiments, the second measurement report is triggered for (the purpose of) location reporting.

In various embodiments, the method further comprises providing a second information in the second measurement report, wherein the second information is provided or not provided in the first measurement report.

In various embodiments, the second information may be one or more measurement results based on UE location.

In various embodiments, the second information may be UE location information.

Referring back to <FIG> and <FIG>, in one or more embodiments from the perspective of a UE, the device <NUM> includes a program code <NUM> stored in memory <NUM> of the transmitter. The CPU <NUM> could execute program code <NUM> to: (i) receive a first configuration of measurement reporting and a second configuration of measurement reporting from a NW; (ii) trigger a first measurement report based on the first measurement reporting configuration, wherein a first information is provided in the first measurement report; and (iii) trigger a second measurement report based on the second measurement reporting configuration, wherein the first information is not provided in the second measurement report. Moreover, the CPU <NUM> can execute the program code <NUM> to perform all of the described actions, steps, and methods described above, below, or otherwise herein.

Referring again back to <FIG> and <FIG>, in one or more embodiments from the perspective of a NW, the device <NUM> includes a program code <NUM> stored in memory <NUM> of the transmitter. The CPU <NUM> could execute program code <NUM> to: (i) transmit a first configuration of measurement reporting and a second configuration of measurement reporting to a UE; (ii) receive, from the UE, a first measurement report triggered based on the first measurement reporting configuration, wherein a first information is provided in the first measurement report; and (iii) receive, from the UE, a second measurement report triggered based on the second measurement reporting configuration, wherein the first information is not provided in the second measurement report. Moreover, the CPU <NUM> can execute the program code <NUM> to perform all of the described actions, steps, and methods described above, below, or otherwise herein.

Information about UE TA could be reported by the UE to the NW in NTN. If enabled by the NW, the information about UE TA could be reported during/at a Random Access (RA) procedure (e.g., in MSGA/Msg3 or Msg5) using Medium Access Control (MAC) Control Element (CE). The information about UE TA could be reported in initial access and/or in RRC connected mode. The TA reporting during/at RA procedure would be enabled/disabled by system information. The TA reporting during/at RA procedure may be controlled by a parameter (e.g., enableTA-Report) included in a system information. And the TA reporting in RRC connected mode is event-triggered (e.g., configured by NW). The reporting event would be based on a TA offset threshold between current information about UE TA and the last successfully reported information about UE TA. For example, if the TA value of the UE change above the TA offset threshold (e.g., the difference between current TA and the last successfully reported TA is above an offset) in RRC connected mode, the UE would trigger the TA reporting. In addition, dedicated signaling (e.g., RRC configuration) is used to configure the UE to report UE location information and/or TA related information for the purpose of TA reporting in RRC connected mode.

For example, the UE may report the information related to UE-specific TA during/at RA procedure (e.g., in initial access) using a MAC CE, if the reporting is enabled by system information (e.g., enableTA-Report in a system information is set to enabled, enableTA-Report is present in a system information). The UE may not report the information related to UE-specific TA during/at RA procedure (e.g., in initial access), if the reporting is disabled by system information (e.g., enableTA-Report in a system information is not set to enabled, enableTA-Report is absent in a system information).

The UE may report the information related to UE-specific TA in RRC connected mode if configured by dedicated signaling and (at least) a reporting event is fulfilled/triggered. The UE may be configured to report the information related to UE-specific TA with content as TA related information and/or UE location information in RRC connected mode. The UE may be configured to report the information related to UE-specific TA with content as TA related information using MAC CE in RRC connected mode. The UE may be configured to report the information related to UE-specific TA with content as UE location information using RRC signaling in RRC connected mode. The TA reporting in RRC connected mode may be enabled/disabled by system information. The TA reporting in RRC connected mode may not be enabled/disabled by system information. The UE may report the information related to UE-specific TA during/at RA procedure (e.g., for RRC reconfiguration with sync and/or handover) in RRC connected mode using MAC CE, if the reporting is enabled by system information (e.g., included in Handover (HO) command message). The UE may not report the information related to UE-specific TA during RA procedure (e.g., for RRC reconfiguration with sync and/or handover) in RRC connected mode, if the reporting is disabled by system information (e.g., included in HO command message).

Assistance information for SSB-based Measurement Timing Configuration (SMTC) (and/or measurement gap) configuration could be reported by a UE to a NW in NTN. The report of the assistance information for SMTC (and/or measurement gap) configuration may be configured by the NW, e.g., via a dedicated signaling, via RRC signaling, via RRC reconfiguration. The report of the assistance information for SMTC (and/or measurement gap) configuration may be event-triggered. The event to trigger the report may be based on how far the UE has moved (e.g., distance between the current UE location and the last reported UE location, distance between the current UE location and the UE location where the last report is made). For example, if the UE has moved a distance above a configured threshold (e.g., the difference between the current UE location and the last reported UE location is above the configured threshold), the UE may trigger the report.

The UE may receive a configuration of the report of the assistance information for SMTC (and/or measurement gap) configuration. The configuration may configure the UE to trigger the report, e.g., periodically, and/or event triggered. If (or in response to) a report being triggered, the UE includes the assistance information for SMTC (and/or measurement gap) configuration in the report.

The assistance information for SMTC (and/or measurement gap) configuration may assist the NW to configure a (proper) SMTC (and/or measurement gap) configuration for the UE. The NW may derive (or calculate) the propagation delay difference for the UE between a serving cell and a neighbor cell (e.g., the difference of the propagation delay from a serving cell to the UE and the propagation delay from a neighbor cell to the UE) based on the assistance information. The NW may use ephemeris of the serving cell and/or the neighbor cell for the derivation.

The assistance information for SMTC (and/or measurement gap) configuration may be related to UE location. For example, the assistance information may be UE location. The assistance information may be coarse UE location. The assistance information may be fine UE location.

The assistance information for SMTC (and/or measurement gap) configuration may be related to propagation delay. For example, the assistance information may be propagation delay difference. The assistance information may be propagation delay.

The propagation delay difference may be between a serving cell to the UE (or the UE to a serving cell) and at least a neighbor cell to the UE (or the UE to at least a neighbor cell).

The propagation delay may be from a serving cell to the UE (or from the UE to a serving cell). The propagation delay may be from a neighbor cell to the UE (or from the UE to a neighbor cell).

Due to various reasons (e.g., location requirement for the NW to derive Cell ID, UE-specific TA change, SMTC and/or measurement gap configuration), the UE could be configured to provide some assistance information to the NW, e.g., when the UE is in RRC connected state. The assistance information may include UE location-related information, TA-related information, SMTC-related information. The assistance information may be included in a UE assistance information report and/or a UE location report. The report may be transmitted via a RRC message), e.g., RRC Setup Complete message, RRC Resume Complete message, Measurement Report, UE Assistance Information. The UE assistance information report and/or a UE location report may be triggered based on an event and/or periodically.

The UE assistance information report (and/or the UE location report) may serve more than one purpose. Taking measurement report as an example, a measurement report (e.g., as specified in NR RRC specification TS <NUM> (e.g., [<NUM>] 3GPP TS <NUM> V16. <NUM>)) may include a variety of information in addition to UE location (e.g., measurement result(s) of serving cell(s), measurement result(s) of neighbor cell(s), beam measurement result(s), best non-serving cell on a frequency, etc.). The information may be used to assist the NW for handover decisions (e.g., when to handover, which target cell to handover). When a measurement report is triggered (e.g., based on a triggering event and/or a periodical reporting timer as specified in TS <NUM> (e.g., [<NUM>] 3GPP TS <NUM> V16. <NUM>)) for at least some purposes mentioned above (e.g., location requirement for NW to derive Cell ID, UE-specific TA change, SMTC and/or measurement gap configuration), at least some information other than UE location information in the measurement report may be less useful.

For example, the measurement result(s) of neighbor cell(s) may not be useful when the UE is not in the cell edge. For example, the measurement result(s) of serving cell quality may not differ too much in a NTN cell due to near-far effect as specified in TR <NUM> (e.g., [<NUM>] 3GPP TR <NUM> V16. Moreover, for a fast-moving UE, the UE may need to report the location information more frequently while at least some other information in the measurement report may be not changed (or not change too much). In such case(s), if the UE reports whole measurement report with the configured information, signaling overhead may be significant. Some methods to reduce the signaling overhead should be considered.

In addition, the same assistance information (e.g., UE location) may be configured to be reported based on different triggers (e.g., based on UE moving distance, based on UE-specific TA change, based on location-based triggering event). The report may be transmitted via the same RRC message (e.g., measurement report). For the same UE assistance information report triggered by different causes, the content of the UE assistance information report may not necessarily be the same. Some (additional) information may be useful for some trigger but not useful for some other trigger. Moreover, some information may be needed to differentiate the triggers. What information should be included in a UE assistance information report should be considered carefully in order to not induce unnecessary signaling overhead.

To solve the issue, the content of a UE assistance information report could be different from each other, e.g., based on its trigger. Information included in a first UE assistance information report could be different from information included in a second UE assistance information report.

The UE assistance information report may be a UE location report, a measurement report, and/or a TA report. The UE assistance information report may be a UE assistance information message, a measurement report message, and/or a RRC message including UE location information. The measurement report may be triggered based on a location-based triggering event and/or a radio condition-based triggering event.

A first information may be omitted (e.g., not provided, not included) in the first UE assistance information report. The UE may omit (at least) one or more first information in the first UE assistance information report. The UE may not provide and/or include (at least) one or more first information in the first UE assistance information report. A second information may be provided and/or included in the first UE assistance information report. The UE may provide and/or include (at least) one or more second information in the first UE assistance information report.

The first information may not be omitted (e.g., may be provided, and/or included) in a second UE assistance information report. The second information may be and/or not be provided/included in the second UE assistance information report. The UE may not omit the first information in the second UE assistance information report. The UE may provide and/or include the first information in the second UE assistance information report. The UE may provide and/or include the second information in the second UE assistance information report. The UE may not provide and/or include the second information in the second UE assistance information report.

The UE may omit (at least) one or more first information in the first UE assistance information report if the content of the one or more first information is the same as the content reported last time. The UE may omit (at least) one or more first information in the first UE assistance information report if the value of the one or more first information does not change above a threshold. The UE may omit (at least) one or more first information in the first UE assistance information report if a timer (e.g., periodic timer) is not running. The UE may omit (at least) one or more first information in the first UE assistance information report if receiving a NW indication.

The first UE assistance information report and the second UE assistance information report may be differentiated based on a purpose of the report. For example, the first UE assistance information report may be for a first purpose. The second UE assistance information report may be for a second purpose. The first purpose is different from the second purpose. The first purpose and/or the second purpose may be at least one of purposes specified in the following:.

The first UE assistance information report and the second UE assistance information report may be differentiated based on a condition (or trigger) to trigger the report. For example, the first UE assistance information report may be triggered by a first trigger. The second UE assistance information report may be triggered by a second trigger. The first trigger is different from the second trigger. The first trigger and/or the second trigger may be at least one of the triggers specified in the following:.

The first UE assistance information report and the second UE assistance information report may be differentiated based on a message to transmit the report. For example, the first UE assistance information report may be transmitted using a first message. The second UE assistance information report may be transmitted using a second message. The first message is different from the second message. The first message and/or the second message may be at least one of the messages specified in the following:.

The first UE assistance information report and the second UE assistance information report may be differentiated based on a configuration. For example, the first UE assistance information report may be triggered based on a first configuration. The second UE assistance information report may be triggered based on a second configuration. The first configuration is different from the second configuration. The first configuration and/or the second configuration may be at least one of the configurations specified in the following:.

The first UE assistance information report and the second UE assistance information report may be differentiated based on a cell type. The cell may be a serving cell of the UE. For example, the first UE assistance information report may be triggered when a serving cell of the UE is of a first type. The second report may be when a serving cell of the UE is of a second type. The first type is different from the second type. The first type and/or the second type may be at least one of the types specified in the following.

The first UE assistance information report and the second UE assistance information report may be differentiated based on location of the UE. For example, the first UE assistance information report may be triggered when the UE is in a first location. The second UE assistance information report may be when the UE is in a second location. The first location is different from the second location. The first location and/or the second location may be at least one of the locations specified in the following:.

More than one differentiation mentioned above may be used jointly to differentiate the first UE assistance information report and the second UE assistance information report.

The first information may be a radio measurement-related information. The second information may be a radio measurement-related information. The radio measurement-related information may be one or more of the following:.

The first information may be a UE location-related information. The second information may be a UE location-related information. The UE location-related information may be one or more of the following:.

The first information may be a TA-related information. The second information may be a TA-related information. The TA-related information may be one or more of the following:.

The first information may be a SMTC-related information. The second information may be a SMTC-related information. The SMTC-related information may be one or more of the following:.

The first information and/or the second information may be one or more of the following:.

Referring to <FIG>, with this and other concepts, systems, and methods of the present invention, a method <NUM> for a UE in a wireless communication system comprises receiving a first configuration of UE assistance information and a second configuration of UE assistance information from a NW (step <NUM>), triggering a first UE assistance information report based on the first configuration, wherein a first information is provided in the first UE assistance information report (step <NUM>), and triggering a second UE assistance information report based on the second configuration, wherein the first information is not provided in the second UE assistance information report (step <NUM>).

In various embodiments, the method further comprises providing a second information in the second UE assistance information report, wherein the second information is provided or not provided in the first UE assistance information report.

In various embodiments, the first UE assistance information report is triggered for (the purpose of) cell/beam quality reporting.

In various embodiments, the second UE assistance information report is triggered for (the purpose of) location reporting.

In various embodiments, the second UE assistance information report is triggered for (the purpose of) TA reporting.

In various embodiments, the second UE assistance information report is triggered for (the purpose of) SMTC (re)configuration.

In various embodiments, the second information may be one or more measurement result based on UE location.

Referring back to <FIG> and <FIG>, in one or more embodiments from the perspective of a UE, the device <NUM> includes a program code <NUM> stored in memory <NUM> of the transmitter. The CPU <NUM> could execute program code <NUM> to: (i) receive a first configuration of UE assistance information and a second configuration of UE assistance information from a NW; (ii) trigger a first UE assistance information report based on the first configuration, wherein a first information is provided in the first UE assistance information report; and (iii) trigger a second UE assistance information report based on the second configuration, wherein the first information is not provided in the second UE assistance information report. Moreover, the CPU <NUM> can execute the program code <NUM> to perform all of the described actions, steps, and methods described above, below, or otherwise herein.

Referring again back to <FIG> and <FIG>, in one or more embodiments from the perspective of a NW, the device <NUM> includes a program code <NUM> stored in memory <NUM> of the transmitter. The CPU <NUM> could execute program code <NUM> to: (i) transmit a first configuration of UE assistance information and a second configuration of UE assistance information; (ii) receive, from the UE, a first UE assistance information report triggered based on the first configuration, wherein a first information is provided in the first UE assistance information report; and (iii) receive, from the UE, a second UE assistance information report triggered based on the second configuration, wherein the first information is not provided in the second UE assistance information report. Moreover, the CPU <NUM> can execute the program code <NUM> to perform all of the described actions, steps, and methods described above, below, or otherwise herein.

Referring to <FIG>, with this and other concepts, systems, and methods of the present invention, a method <NUM> for a UE in a wireless communication system comprises receiving a first configuration to trigger measurement reporting based on a first event that distance between the UE and a first reference location of a serving cell becomes larger than a distance threshold and distance between the UE and a second reference location of a first neighbor cell becomes shorter than another distance threshold (step <NUM>), and triggering a first measurement report based on the first event, wherein measured radio condition of the first neighbor cell is omitted or not included in the first measurement report (step <NUM>).

In various embodiments, the first event is a location-based triggering event.

In various embodiments, the method further comprises including a (coarse) location information in the first measurement report.

In various embodiments, the first reference location of the serving cell is referenceLocation1 and the second reference location of the first neighbor cell is referenceLocation2.

In various embodiments, the method further comprises receiving a second configuration to trigger measurement reporting based on a second event that measurement result (of radio condition) of a serving cell (or PCell) becomes worse than a Reference Signal Received Power (RSRP) threshold and measurement result (of radio condition) of a second neighbor cell becomes better than another RSRP threshold; and triggering a second measurement report based on the second event, wherein measured radio condition of the serving cell and/or the second neighbor cell is included or not omitted in the second measurement report.

In various embodiments, the second event is a radio condition based triggering event.

In various embodiments, the first neighbor cell and the second neighbor cell are the same cell.

In various embodiments, the UE determines to include measured radio condition of a neighbor cell based on triggering of the measurement report.

In various embodiments, the first measurement report and the second measurement report are differentiated based on triggering of the measurement report.

In various embodiments, the method further comprises determining to not include measured radio condition of a neighbor cell in a measurement report, wherein the measurement report is triggered by a location-based triggering event associated with the neighbor cell.

In various embodiments, the method further comprises transmitting the first measurement report and/or the second measurement report to a network.

In various embodiments, measured radio condition of the first neighbor cell is not included and measured radio condition of the serving cell is included in the first measurement report.

Referring back to <FIG> and <FIG>, in one or more embodiments from the perspective of a UE, the device <NUM> includes a program code <NUM> stored in memory <NUM> of the transmitter. The CPU <NUM> could execute program code <NUM> to: (i) receive a first configuration to trigger measurement reporting based on a first event that distance between the UE and a first reference location of a serving cell becomes larger than a distance threshold and distance between the UE and a second reference location of a first neighbor cell becomes shorter than another distance threshold; and (ii) trigger a first measurement report based on the first event, wherein measured radio condition of the first neighbor cell is omitted or not included in the first measurement report. Moreover, the CPU <NUM> can execute the program code <NUM> to perform all of the described actions, steps, and methods described above, below, or otherwise herein.

Referring again back to <FIG> and <FIG>, in one or more embodiments from the perspective of a NW, the device <NUM> includes a program code <NUM> stored in memory <NUM> of the transmitter. The CPU <NUM> could execute program code <NUM> to: (i) transmit a first configuration to trigger measurement reporting based on a first event that distance between a UE and a first reference location of a serving cell becomes larger than a distance threshold and distance between the UE and a second reference location of a first neighbor cell becomes shorter than another distance threshold; and (ii) receive, from the UE, a first measurement report triggered based on the first event, wherein measured radio condition of the first neighbor cell is omitted or not included in the first measurement report. Moreover, the CPU <NUM> can execute the program code <NUM> to perform all of the described actions, steps, and methods described above, below, or otherwise herein.

Any combination of the above concepts or teachings can be jointly combined or formed to a new embodiment. The disclosed details and embodiments can be used to solve at least (but not limited to) the issues mentioned above and herein.

It is noted that any of the methods, alternatives, steps, examples, and embodiments proposed herein may be applied independently, individually, and/or with multiple methods, alternatives, steps, examples, and embodiments combined together.

Various aspects of the disclosure have been described above. It should be apparent that the teachings herein may be embodied in a wide variety of forms and that any specific structure, function, or both being disclosed herein is merely representative. Based on the teachings herein one skilled in the art should appreciate that an aspect disclosed herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. As an example of some of the above concepts, in some aspects, concurrent channels may be established based on pulse repetition frequencies. In some aspects, concurrent channels may be established based on pulse position or offsets. In some aspects, concurrent channels may be established based on time hopping sequences. In some aspects, concurrent channels may be established based on pulse repetition frequencies, pulse positions or offsets, and time hopping sequences.

Those of ordinary skill in the art would understand that information and signals may be represented using any of a variety of different technologies and techniques.

Those of ordinary skill in the art would further appreciate that the various illustrative logical blocks, modules, processors, means, circuits, and algorithm steps described in connection with the aspects disclosed herein may be implemented as electronic hardware (e.g., a digital implementation, an analog implementation, or a combination of the two, which may be designed using source coding or some other technique), various forms of program or design code incorporating instructions (which may be referred to herein, for convenience, as "software" or a "software module"), or combinations of both.

It is understood that any specific order or hierarchy of steps in any disclosed process is an example of a sample approach. Based upon design preferences, it is understood that the specific order or hierarchy of steps in the processes may be rearranged while remaining within the scope of the present disclosure. The accompanying method claims present elements of the various steps in a sample order, and are not meant to be limited to the specific order or hierarchy presented.

The steps of a method or algorithm described in connection with the aspects disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module (e.g., including executable instructions and related data) and other data may reside in a data memory such as RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of computer-readable storage medium known in the art. A sample storage medium may be coupled to a machine such as, for example, a computer/processor (which may be referred to herein, for convenience, as a "processor") such the processor can read information (e.g., code) from and write information to the storage medium. A sample storage medium may be integral to the processor. The ASIC may reside in user equipment. In the alternative, the processor and the storage medium may reside as discrete components in user equipment. Moreover, in some aspects, any suitable computer-program product may comprise a computer-readable medium comprising codes relating to one or more of the aspects of the disclosure. In some aspects, a computer program product may comprise packaging materials.

Claim 1:
A method (<NUM>) performed by a User Equipment, UE, in non-terrestrial networks, NTN, comprising:
receiving (<NUM>) a first configuration to trigger measurement reporting based on a first event; and
triggering (<NUM>) a first measurement report based on the first event,
characterized by:
in response to triggering the first measurement report, determining, based on whether the first event is a location-based triggering event or not, whether or not to include a measured radio condition of a first neighbor cell in the first measurement report,
wherein the UE determines to omit or not include the measured radio condition of the first neighbor cell in the first measurement report if the first event is a location-based triggering event, and
wherein the location-based triggering event is based on a distance between the UE and a reference location.