WO2019194727A1 - Systems and methods for adjusting parameters based on an airborne status - Google Patents

Systems and methods for adjusting parameters based on an airborne status Download PDF

Info

Publication number
WO2019194727A1
WO2019194727A1 PCT/SE2019/050294 SE2019050294W WO2019194727A1 WO 2019194727 A1 WO2019194727 A1 WO 2019194727A1 SE 2019050294 W SE2019050294 W SE 2019050294W WO 2019194727 A1 WO2019194727 A1 WO 2019194727A1
Authority
WO
WIPO (PCT)
Prior art keywords
wireless device
airborne
airborne status
status
determining
Prior art date
Application number
PCT/SE2019/050294
Other languages
French (fr)
Inventor
Helka-Liina Määttanen
Siva Muruganathan
Xingqin LIN
Zhenhua Zou
Jonas SEDIN
Original Assignee
Telefonaktiebolaget Lm Ericsson (Publ)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefonaktiebolaget Lm Ericsson (Publ) filed Critical Telefonaktiebolaget Lm Ericsson (Publ)
Publication of WO2019194727A1 publication Critical patent/WO2019194727A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18502—Airborne stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition

Definitions

  • the present disclosure relates to adjusting parameters based on an airborne status of a wireless device in a cellular communications network.
  • LTE Long Term Evolution
  • UMTS Evolved Universal Mobile Telecommunications Service
  • E-UTRAN Evolved Universal Mobile Telecommunications Service
  • UEs User Equipments
  • LTE is used as an example technology where the invention is suitable, and using LTE in the
  • the UL signal from an aerial vehicle increases interference in the neighbour cells, and the increased interference gives a negative impact to the UE on the ground, e.g., smartphone, Internet of Things (loT) device, etc.
  • the UE on the ground e.g., smartphone, Internet of Things (loT) device, etc.
  • LoT Internet of Things
  • applying these line-of-sight conditions to multiple cells causes higher downlink (DL) interference at the aerial UE.
  • DL downlink
  • a method performed by a wireless device for adjusting parameters based on an airborne status of the wireless device includes receiving at least one measurement or reporting configuration with at least one airborne status criterion; determining the airborne status of the wireless device; and if the airborne status of the wireless device satisfies the at least one airborne status criterion, performing a
  • the new configuration can take effect as soon as the airborne status has changed.
  • a reporting configuration is conditioned on airborne status instead of an individual parameter, two distinct reporting configurations can be configured with parameter values suitable for airborne and non- airborne wireless devices.
  • determining the airborne status of the wireless device comprises determining a binary indication of airborne status. In some embodiments, the airborne status of the wireless device comprises an indication of“airborne” or“not airborne.”
  • determining the airborne status of the wireless device comprises determining the airborne status of the wireless device based on at least one of the group consisting of: a height-related parameter of the wireless device, a number of cells the wireless device sees, and a number of beams the wireless device sees.
  • determining the airborne status of the wireless device comprises determining the airborne status of the wireless device based on the height- related parameter of the wireless device which can comprise more than two indications of height.
  • the height-related parameter of the wireless device comprises one of the group consisting of: High-Altitude, Mid-Altitude, and Normal-Altitude.
  • determining the airborne status of the wireless device comprises determining the airborne status of the wireless device based on the number of cells the wireless device sees.
  • the number of cells the wireless device sees is based on a number of reference signals the wireless device sees from different cells.
  • each of the reference signals is one of the group consisting of: a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), a Cell Specific Reference Signal (CRS), and a Synchronization Signal Block (SSB).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • CRS Cell Specific Reference Signal
  • SSB Synchronization Signal Block
  • receiving the at least one measurement or reporting configuration comprises receiving a reportconfiguration for a measID that includes the at least one airborne status criterion.
  • the method prior to performing the measurement or reporting, the method also includes determining that the airborne status of the wireless device matches the at least one airborne status criterion of the reportconfiguration.
  • the method also includes determining that the airborne status of the wireless device does not match the at least one airborne status criterion of the reportconfiguration ⁇ , and, in response to determining that the airborne status of the wireless device does not match, ignoring a measurement object linked to the reportconfiguration.
  • receiving the at least one measurement or reporting configuration comprises receiving a configuration for at least one of: a timeToTrigger parameter, a maxReportCells parameter, a reportlnterval parameter, a reportAmount parameter, or an includeLocationlnfo parameter.
  • determining the airborne status of the wireless device comprises receiving the airborne status of the wireless device from a network node such as a radio access node.
  • determining the airborne status of the wireless device comprises determining the airborne status of the wireless device at the wireless device.
  • a wireless device includes one or more transceivers; one or more processors; and memory.
  • the memory includes instructions executable by the one or more processors whereby the wireless device is operable to: receive at least one measurement or reporting configuration with at least one airborne status criterion;
  • a radio access node includes one or more network
  • the memory includes instructions executable by the one or more processors whereby the radio access node is operable to: transmit, to the wireless device, at least one measurement or reporting configuration with at least one airborne status criterion; determine an airborne status of the wireless device; and, if the airborne status of the wireless device satisfies the at least one airborne status criterion, receive a measurement or report according to the at least one measurement or reporting configuration.
  • Figure 1 depicts a situation in which a User Equipment (UE) that is flying at a height above the boresight of the base station antennas is likely to be served by multiple base station antennas;
  • UE User Equipment
  • Figures 2A through 2C are maps showing the best serving cell as seen by UEs at different heights
  • FIGS. 3A through 3C are maps that show the geometry Signal to Interference Ratio (SIR) at different heights;
  • Figure 4 illustrates one example of a cellular communications network according to some embodiments of the present disclosure
  • Figures 5A through 5B illustrate the operation of a wireless device for adjusting parameters based on an airborne status of the wireless device according to some embodiments of the present disclosure
  • Figures 6A through 6B illustrate the operation of a radio access node for adjusting parameters based on an airborne status of a wireless device according to some
  • Figure 7 is a schematic block diagram of a radio access node according to some embodiments of the present disclosure
  • Figure 8 is a schematic block diagram that illustrates a virtualized embodiment of the radio access node according to some embodiments of the present disclosure
  • Figure 9 is a schematic block diagram of the radio access node according to some other embodiments of the present disclosure.
  • Figure 10 is a schematic block diagram of a UE according to some embodiments of the present disclosure.
  • Figure 11 is a schematic block diagram of the UE according to some other embodiments of the present disclosure.
  • Figure 12 is a schematic block diagram of the radio access node of Figure 9 according to some other embodiments of the present disclosure.
  • Figure 13 is a schematic block diagram of a UE according to some embodiments of the present disclosure.
  • Figures 14 through 17 are flowcharts illustrating methods implemented in a communication system according to some other embodiments of the present disclosure.
  • Radio Node As used herein, a“radio node” is either a radio access node or a wireless device.
  • Radio Access Node As used herein, a“radio access node” or“radio network node” is any node in a radio access network of a cellular communications network that operates to wirelessly transmit and/or receive signals. Some examples of a radio access node include, but are not limited to, a base station (e.g., a New Radio (NR) base station (gNB) in a Third Generation Partnership Project (3GPP) Fifth Generation (5G) NR network or an enhanced or evolved Node B (eNB) in a 3GPP Long Term Evolution (LTE) network), a high-power or macro base station, a low-power base station (e.g., a micro base station, a pico base station, a home eNB, or the like), and a relay node.
  • a“core network node” is any type of node in a core network. Some examples of a core network node include, e.g., a Mobility
  • MME Management Entity
  • P-GW Packet Data Network Gateway
  • SCEF Service Capability Exposure Function
  • a“wireless device” is any type of device that has access to (i.e. , is served by) a cellular communications network by wirelessly transmitting and/or receiving signals to a radio access node(s).
  • Some examples of a wireless device include, but are not limited to, a User Equipment device (UE) in a 3GPP network and a Machine Type Communication (MTC) device.
  • UE User Equipment device
  • MTC Machine Type Communication
  • a“network node” is any node that is either part of the radio access network or the core network of a cellular communications network/system.
  • the uplink (UL) signal from the aerial vehicle becomes more visible to multiple cells due to line-of-sight propagation conditions.
  • the UL signal from an aerial vehicle increases interference in the neighbour cells and the increased interference gives a negative impact to the UE on the ground, e.g. smartphone, Internet of Things (loT) device, etc.
  • the UE on the ground e.g. smartphone, Internet of Things (loT) device, etc.
  • LoT Internet of Things
  • applying these line- of-sight conditions to multiple cells causes higher downlink (DL) interference at the aerial UE.
  • DL downlink
  • FIG. 1 depicts the situation.
  • a drone UE in the present invention is also referred to using alternative terminologies such as Unmanned Aerial Vehicle (UAV), aerial UE, etc.
  • UAV Unmanned Aerial Vehicle
  • FIGS 2A-2C show that the coverage area of an eNB from the perspective of a drone UE in the sky, which may be fragmented into several discontinuous areas, while the coverage area of an eNB from the perspective of a UE on the ground is usually an approximate closed set. Also, for a drone UE in the sky, a certain far away cell may appear to be the best cell. This is different when compared to the case of terrestrial UEs on the ground, where the best cell is generally closer to the terrestrial UE on the ground. In this map, locations that are served by the same site are labeled by the same color, assuming that UEs connect to the strongest cell.
  • Figures 2A, 2B, and 2C correspond to the situation at 0 m, 50 m and 300 m above ground, respectively.
  • the objective is to specify the following improvements for enhanced LTE support for aerial vehicles. Note: enhancements are built on existing mobility mechanisms, and these mechanisms may be enhanced if identified to be needed. The objectives of the Wl are as below:
  • Enhancements to existing measurement reporting mechanisms such as definition of new events, enhanced triggering conditions, mechanisms to control the amount of measurement reporting.
  • Enhancements to mobility for Aerial UEs such as conditional Handover (HO) and enhancements based on information such as location information, UE’s airborne status, flight path plan, etc.
  • HO conditional Handover
  • Enhancements to mobility for Aerial UEs such as conditional Handover (HO) and enhancements based on information such as location information, UE’s airborne status, flight path plan, etc.
  • HO conditional Handover
  • Enhancements to mobility for Aerial UEs such as conditional Handover (HO) and enhancements based on information such as location information, UE’s airborne status, flight path plan, etc.
  • HO conditional Handover
  • enhancements to support indication of UE’s airborne status and indication of the UE’s support of UAV related functions in an LTE network e.g. UE radio capability
  • UAV UE Provide reference altitude information (including threshold) to UAV UE provided by eNB to assist UE to identify its status (i.e. , airborne status).
  • the first agreement is about explicit flight mode detection where based on changed interference conditions, the UE triggers a measurement report. From that, eNB can deduce flight mode. There have also been proposals that eNB could poll flight mode of the UE.
  • the second agreement can be used in several ways but basically it gives a common reference point for UE and network to define flight status. It should be noted that it is optional for the network to configure the UE with the threshold value.
  • the excessive DL interference and the down-titled BS antennas contribute to a worse perceived Signal to Interference plus Noise Ratio (SINR), a fast- changing best cell and possibly a faraway best cell, compared to the terrestrial UEs. That is, it is likely that UEs in airborne mode should be configured differently compared to a terrestrial UE.
  • SINR Signal to Interference plus Noise Ratio
  • One proposal has been to scale the time-to-trigger (TTT) parameter that defines when a measurement result is sent by the UE after an event triggers. When UE is airborne, it is beneficial to trigger measurement results earlier compared to terrestrial UEs.
  • TTT can be scaled based on a mobility state of the UE, where a mobility state is defined as a number of HOs seen by the UE based on certain configuration.
  • a cell reselection threshold can be scaled based on UEs mobility state. This has also been proposed for drones based on height/airborne status.
  • a method performed by a wireless device for adjusting parameters based on an airborne status of the wireless device includes receiving at least one measurement or reporting configuration with at least one airborne status criterion; determining the airborne status of the wireless device; and if the airborne status of the wireless device satisfies the at least one airborne status criterion, performing a
  • the new configuration can take effect as soon as the airborne status has changed.
  • a reporting configuration is conditioned on airborne status instead of an individual parameter, two distinct reporting configurations can be configured with parameter values suitable for airborne and non- airborne wireless devices.
  • Certain aspects of the current disclosure and their embodiments may provide solutions to the aforementioned or other challenges.
  • scaling and/or selection of parameter values and/or Information Elements (lEs) in an efficient way is proposed.
  • LEs Information Elements
  • some embodiments herein condition a whole report configuration on airborne status such that also other parameters are included in the report configuration.
  • an airborne status is an indication of whether a wireless device or other node is currently airborne.
  • the airborne status is a binary indication of airborne status such as an indication of“airborne” or“not airborne.”
  • the airborne status can be determined based on some combination of a height-related parameter of the wireless device, a number of cells the wireless device sees, and a number of beams the wireless device sees.
  • the height-related parameter of the wireless device is one of: High-Altitude, Mid-Altitude, and Normal-Altitude.
  • a Measurement Object points to an E-UTRAN carrier and different reporting configurations may be linked to the same MO. Each linkage is identified by a measurement ID.
  • the IE Measld is used to identify the linking of a measurement object and a
  • the IE MeasObjectld is used to identify a measurement object configuration.
  • the IE ReportConfigld is used to identify a measurement reporting configuration.
  • MeasldToAddModList :: SEQUENCE (SIZE (1..maxMeasld)) OF
  • MeasldT oAddModList-v1310 :: SEQUENCE (SIZE (1..maxMeasld)) OF
  • MeasldToAddModListExt-r12 :: SEQUENCE (SIZE (1..maxMeasld)) OF
  • MeasldT oAddModListExt-v1310 :: SEQUENCE (SIZE (1..maxMeasld)) OF
  • a method performed by a wireless device for adjusting parameters based on a height of the wireless device includes receiving at least one measurement configuration with at least one height-dependent criteria;
  • a method performed by a base station for adjusting parameters based on a height of a wireless device includes transmitting to the wireless device at least one measurement configuration with at least one height-dependent criteria; optionally determining a height-related parameter of the wireless device; and, If the height- related parameter of the wireless device satisfies the at least one height-dependent criteria, receiving a measurement according to the at least one measurement configuration.
  • the new configuration is effective as soon as the UE’s airborne status has changed, such as it is above a certain height.
  • an IE reporting configuration is conditioned on airborne status instead of an individual parameter like TTT, if described, two distinct reporting configurations can be configured to airborne and non-airborne UE status with parameter values suitable for airborne and non-airborne UEs, respectively.
  • Some of the parameters below that can be especially useful to tune based on airborne status are a timeToTrigger parameter, a maxReportCells parameter, a
  • reportlnterval parameter a reportAmount parameter
  • includeLocationlnfo parameter All of these highlighted parameters are related to how fast the UE reports, how often, how many cells, report amount, and whether to include location information.
  • ThresholdEUTRA CHOICE ⁇
  • ThresholdEUTRA-v1250 CSI-RSRP-Range-r12
  • FIG. 4 illustrates one example of a cellular communications network 400 according to some embodiments of the present disclosure.
  • the cellular communications network 400 is a 5G NR network.
  • the cellular communications network 400 includes base stations 402-1 and 402-2, which in LTE are referred to as eNBs and in 5G NR are referred to as gNBs, controlling corresponding macro cells 404-1 and 404-2.
  • the base stations 402-1 and 402-2 are generally referred to herein collectively as base stations 402 and individually as base station 402.
  • the macro cells 404-1 and 404-2 are generally referred to herein collectively as macro cells 404 and individually as macro cell 404.
  • the cellular communications network 400 may also include a number of low power nodes 406-1 through 406-4 controlling corresponding small cells 408-1 through 408-4.
  • the low power nodes 406-1 through 406-4 can be small base stations (such as pico or femto base stations) or Remote Radio Heads (RRHs), or the like.
  • RRHs Remote Radio Heads
  • one or more of the small cells 408-1 through 408-4 may alternatively be provided by the base stations 402.
  • the low power nodes 406-1 through 406-4 are generally referred to herein collectively as low power nodes 406 and individually as low power node 406.
  • the small cells 408-1 through 408-4 are generally referred to herein collectively as small cells 408 and individually as small cell 408.
  • the base stations 402 (and optionally the low power nodes 406) are connected to a core network 410.
  • the base stations 402 and the low power nodes 406 provide service to wireless devices 412-1 through 412-5 in the corresponding cells 404 and 408.
  • the wireless devices 412-1 through 412-5 are generally referred to herein collectively as wireless devices 412 and individually as wireless device 412.
  • the wireless devices 412 are also sometimes referred to herein as UEs.
  • Figure 5A illustrates a method performed by a wireless device for adjusting parameters based on an airborne status of the wireless device 412.
  • the wireless device 412 receives at least one measurement or reporting configuration with at least one airborne status criterion (step 500).
  • the wireless device 412 determines the airborne status of the wireless device 412 (step 502). If the airborne status of the wireless device 1000 satisfies the at least one airborne status criterion, the wireless device 412 performs a measurement or reporting according to the at least one measurement or reporting configuration (step 504).
  • Figure 5B illustrates an embodiment of the method described in Figure 5A where the airborne status criterion is a height-dependent criterion.
  • Figure 5B illustrates a method performed by a wireless device for adjusting parameters based on a height of the wireless device.
  • the wireless device receives at least one measurement configuration with at least one height-dependent criterion (step 500-B).
  • the height-related criteria parameter may be a binary indication of height such as“airborne” or“not airborne”.
  • the height-related criteria parameter may be more than two indications of height such as High-Altitude, Mid-Altitude, and Normal-Altitude.
  • the wireless device also determines a height-related parameter of the wireless device (step 502-B). In some embodiments, this includes receiving the height-related parameter from a network node such as a base station. In some embodiments, this includes determining the height-related parameter at the wireless device such as by determining the height-related parameter based on a number of cells or beams detected.
  • the wireless device performs a measurement according to the at least one measurement configuration (step 504-B).
  • Figure 6A illustrates a method performed by a radio access node 700 (shown in Figure 7) for adjusting parameters based on an airborne status of a wireless device 412.
  • the radio access node 700 transmits to the wireless device 412 at least one measurement or reporting configuration with at least one airborne status criterion (step 600).
  • the radio access node 700 optionally determines the airborne status of the wireless device 412 (step 602). If the airborne status of the wireless device 412 satisfies the at least one airborne status criterion, the radio access node 700 receives a measurement or report according to the at least one measurement or reporting configuration (step 604).
  • Figure 6B illustrates an embodiment of the method described in Figure 6A where the airborne status criterion is a height-dependent criterion.
  • Figure 6B illustrates a method performed by the radio access node 700 such as a base station for adjusting parameters based on a height of a wireless device 412.
  • the base station (or any other suitable network node) transmits to the wireless device at least one measurement configuration with at least one height-dependent criteria (step 600-B).
  • the base station then optionally determines a height-related parameter of the wireless device 412 (step 602-B). In some embodiments, this is not necessary since the wireless device 412 determines this parameter for itself. If the height-related parameter of the wireless device 412 satisfies the at least one height-dependent criteria, the base station receives a measurement according to the at least one measurement configuration (step 604-B).
  • UE When performing measurements, UE should check if the reporting configuration linked to a measID includes parameter for airborne status, or height.
  • reportconfigEUTRA in 36.331 or reportconfigNR in 38.331 add a parameter which tells whether this reporting configuration should be considered based on whether certain conditions are met. In one example, this could be that UE is below or above a certain height, or within a margin. Alternatively it can be called airborne status. There may also be speed/location component instead of, or in addition to the airborne status.
  • airborne status of the UE for example based on reference altitude provided by the network.
  • ASN1 for the criteria for the UE to detect airborne status.
  • the other two RRC changes 1 and 2 are needed.
  • the UE determines its airborne status.
  • ways for the UE to determine the airborne status/height that are defined that are different from the prior art.
  • An alternative way to determine airborne status is based on a number of cells the UE 412 sees for LTE and for NR it can be a combination of a number of cells and a number of beams as in NR the reference signals from which a cell may be detected corresponding to Primary Synchronization Signal (PSS) / Secondary Synchronization Signal (SSS) / Cell-specific Reference Signal (CRS) is Synchronization Signal Block (SSB) which contains NR-PSS/NR-SSS and NR-Physical Broadcasting Channel (PBCH) which includes a Demodulation Reference Signal (DMRS) as the reference signal.
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • CRS Cell-specific Reference Signal
  • SSB Synchronization Signal Block
  • PBCH NR-Physical Broadcasting Channel
  • DMRS Demodulation Reference Signal
  • One cell may transmit one or multiple SSBs which are beamformed.
  • Cell quality in NR is defined based on one or
  • that airborne status detection could be determined based on any combination of the following:
  • PCI Physical Cell Identifier
  • NR UE counts SSB detected when it:
  • o detects NR-PSS/NR-SSS and is able to decode PBCH
  • o detects NR-PSS/NR-SSS and is able to decode PBCH and SSB-RSRP is above a threshold
  • the UE 412 can count all detected cells/SSBs or UE can count those detected cells/SSBs that are included e.g. in a whitelist of cells provided in the measurement configuration.
  • the UE 412 may need to detect the cells within a time provided to the UE 412.
  • the UE 412 can use the cell detection criteria defined in 38.331.
  • the state detection criteria below are examples of an airborne detection.
  • the UE shall:
  • the second case is where the airborne status is a non-binary state
  • the state detection is once again an example of an airborne detection
  • the UE shall:
  • UE shall apply the following scaling rules:
  • ThresholdEUTRA CHOICE ⁇
  • ThresholdEUTRA-v1250 CSI-RSRP-Range-r12
  • the UE shall determine the airborne status according to parameters within IE AirborneStatusParameters configured by E-UTRAN as follows:
  • the UE shall:
  • the IE AirborneStatusParameters contains parameters to determine airborne status for the UE.
  • n5 corresponds to 5 cells and so on.
  • RSSI Received Signal Strength Indicator
  • PDCP Packet Data Convergence Protocol
  • QCI Quality of Service Class Identifier
  • CBR Constant Bit Rate
  • Wireless Local Area Network (WLAN) measurements of Band, Carrier Info, Available Admission Capacity, Backhaul Bandwidth, Channel Utilization, and Station Count the UE applies the layer 3 filtering as specified in 5.5.3.2, before using the measured results for evaluation of reporting criteria or for measurement reporting.
  • the UE derives the cell quality as specified in 5.5.3.3.
  • the UE shall:
  • RSRP Reference Signal Received Power
  • RSRQ Reference Signal Received Quality
  • si-RequestForHO is configured for the associated reportConfig ⁇ .
  • RAT Access Technology
  • the UE is allowed to temporarily abort communication with all serving cell(s), i.e. , create autonomous gaps to perform the corresponding measurements within the limits specified in TS 36.133.
  • the UE only supports the measurements with the purpose set to reported only if E-UTRAN has provided sufficient idle periods.
  • CSG Closed Subscriber Group
  • LAC Location Area Code
  • RAC Routing Area Code
  • the cell indicated by the cellForWhichToReportCGI included in the associated measObject is a Global System for Mobile Communications Enhanced Data Rates for Global System for Mobile Communications Evolution Radio Access Network (GERAN) cell: 4>try to acquire the RAC in the concerned cell;
  • GERAN Global System for Mobile Communications Enhanced Data Rates for Global System for Mobile Communications Evolution Radio Access Network
  • the cell indicated by the cellForWhichToReportCGI included in the associated measObject is a Code Division Multiple Access (CDMA)2000 cell and the cdma2000-Type included in the measObject is typeHRPD.
  • CDMA Code Division Multiple Access
  • the cell indicated by the cellForWhichToReportCGI included in the associated measObject is a CDMA2000 cell and the cdma2000-Type included in the measObject is typeIXRTT
  • reportCRS-Meas is included in the associated reportConfig, perform the corresponding measurements of neighbouring cells on the frequencies indicated in the concerned measObject as follows:
  • FIG. 7 is a schematic block diagram of the radio access node 700 according to some embodiments of the present disclosure.
  • the radio access node 700 may be, for example, a base station 402 or 406.
  • the radio access node 700 includes a control system 702 that includes one or more processors 704 (e.g., Central Processing Units (CPUs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), and/or the like), memory 706, and a network interface 708.
  • the one or more processors 704 are also referred to herein as processing circuitry.
  • the radio access node 700 includes one or more radio units 710 that each includes one or more transmitters 712 and one or more receivers 714 coupled to one or more antennas 716.
  • the radio units 710 may be referred to or be part of radio interface circuitry.
  • the radio unit(s) 710 is external to the control system 702 and connected to the control system 702 via, e.g., a wired connection (e.g., an optical cable).
  • the radio unit(s) 710 and potentially the antenna(s) 716 are integrated together with the control system 702.
  • the one or more processors 704 operate to provide one or more functions of a radio access node 700 as described herein.
  • the function(s) are implemented in software that is stored, e.g., in the memory 706 and executed by the one or more processors 704.
  • Figure 8 is a schematic block diagram that illustrates a virtualized embodiment of the radio access node 700 according to some embodiments of the present disclosure. This discussion is equally applicable to other types of network nodes. Further, other types of network nodes may have similar virtualized architectures.
  • a“virtualized” radio access node is an implementation of the radio access node 700 in which at least a portion of the functionality of the radio access node 700 is implemented as a virtual component(s) (e.g., via a virtual machine(s) executing on a physical processing node(s) in a network(s)).
  • the radio access node 700 includes the control system 702 that includes the one or more processors 704 (e.g., CPUs, ASICs, FPGAs, and/or the like), the memory 706, and the network interface 708 and the one or more radio units 710 that each includes the one or more transmitters 712 and the one or more receivers 714 coupled to the one or more antennas 716, as described above.
  • the control system 702 is connected to the radio unit(s) 710 via, for example, an optical cable or the like.
  • the control system 702 is connected to one or more processing nodes 800 coupled to or included as part of a network(s) 802 via the network interface 708.
  • Each processing node 800 includes one or more processors 804 (e.g., CPUs, ASICs, FPGAs, and/or the like), memory 806, and a network interface 808.
  • functions 810 of the radio access node 700 described herein are implemented at the one or more processing nodes 800 or distributed across the control system 702 and the one or more processing nodes 800 in any desired manner.
  • some or all of the functions 810 of the radio access node 700 described herein are implemented as virtual components executed by one or more virtual machines implemented in a virtual environment(s) hosted by the processing node(s) 800.
  • communication between the processing node(s) 800 and the control system 702 is used in order to carry out at least some of the desired functions 810. Notably, in some of the desired functions 810.
  • control system 702 may not be included, in which case the radio unit(s) 710 communicates directly with the processing node(s) 800 via an appropriate network interface(s).
  • a computer program including instructions which, when executed by at least one processor, causes the at least one processor to carry out the functionality of radio access node 700 or a node (e.g., a processing node 800)
  • a node e.g., a processing node 800
  • a carrier comprising the aforementioned computer program product.
  • the carrier is one of an electronic signal, an optical signal, a radio signal, or a computer readable storage medium (e.g., a non-transitory computer readable medium such as memory).
  • FIG 9 is a schematic block diagram of the radio access node 700 according to some other embodiments of the present disclosure.
  • the radio access node 700 includes one or more modules 900, each of which is implemented in software.
  • the module(s) 900 provide the functionality of the radio access node 700 described herein. This discussion is equally applicable to the processing node 800 of Figure 8 where the modules 900 may be implemented at one of the processing nodes 800 or distributed across multiple processing nodes 800 and/or distributed across the processing node(s) 800 and the control system 702.
  • Figure 10 is a schematic block diagram of a UE 1000 according to some embodiments.
  • the UE 1000 includes one or more processors 1002 (e.g., CPUs, ASICs, FPGAs, and/or the like), memory 1004, and one or more transceivers 1006 each including one or more transmitters 1008 and one or more receivers 1010 coupled to one or more antennas 1012.
  • the processors 1002 are also referred to herein as processing circuitry.
  • the transceivers 1006 are also referred to herein as radio circuitry.
  • the functionality of the UE 1000 described above may be fully or partially implemented in software that is, e.g., stored in the memory 1004 and executed by the processor(s) 1002.
  • the UE 1000 may include additional components not illustrated in Figure 10 such as, e.g., one or more user interface
  • a computer program including instructions which, when executed by at least one processor, causes the at least one processor to carry out the functionality of the UE 1000 according to any of the embodiments described herein is provided.
  • a carrier comprising the aforementioned computer program product is provided.
  • the carrier is one of an electronic signal, an optical signal, a radio signal, or a computer readable storage medium (e.g., a non-transitory computer readable medium such as memory).
  • FIG 11 is a schematic block diagram of the UE 1000 according to some other embodiments of the present disclosure.
  • the UE 1000 includes one or more modules 1100, each of which is implemented in software.
  • the module(s) 1100 provide the functionality of the UE 1000 described herein.
  • a communication system includes a telecommunication network 1200, such as a 3GPP-type cellular network, which comprises an access network 1202, such as a Radio Access Network (RAN), and a core network 1204.
  • the access network 1202 comprises a plurality of base stations 1206A, 1206B, 1206C, such as NBs, eNBs, gNBs, or other types of wireless Access Points (APs), each defining a corresponding coverage area 1208A, 1208B, 1208C.
  • Each base station 1206A, 1206B, 1206C is connectable to the core network 1204 over a wired or wireless connection 1210.
  • a first UE 1212 located in coverage area 1208C is configured to wirelessly connect to, or be paged by, the corresponding base station 1206C.
  • a second UE 1214 in coverage area 1208A is wirelessly connectable to the corresponding base station 1206A. While a plurality of UEs 1212, 1214 are illustrated in this example, the disclosed embodiments are equally applicable to a situation where a sole UE is in the coverage area or where a sole UE is connecting to the corresponding base station 1206.
  • the telecommunication network 1200 is itself connected to a host computer 1216, which may be embodied in the hardware and/or software of a standalone server, a cloud- implemented server, a distributed server, or as processing resources in a server farm.
  • the host computer 1216 may be under the ownership or control of a service provider, or may be operated by the service provider or on behalf of the service provider.
  • Connections 1218 and 1220 between the telecommunication network 1200 and the host computer 1216 may extend directly from the core network 1204 to the host computer 1216 or may go via an optional intermediate network 1222.
  • the intermediate network 1222 may be one of, or a combination of more than one of, a public, private, or hosted network; the intermediate network 1222, if any, may be a backbone network or the Internet; in particular, the intermediate network 1222 may comprise two or more sub-networks (not shown).
  • the communication system of Figure 12 as a whole enables connectivity between the connected UEs 1212, 1214 and the host computer 1216.
  • the connectivity may be described as an Over-the-Top (OTT) connection 1224.
  • the host computer 1216 and the connected UEs 1212, 1214 are configured to communicate data and/or signaling via the OTT connection 1224, using the access network 1202, the core network 1204, any intermediate network 1222, and possible further infrastructure (not shown) as
  • the OTT connection 1224 may be transparent in the sense that the participating communication devices through which the OTT connection 1224 passes are unaware of routing of uplink and downlink communications. For example, the base station 1206 may not or need not be informed about the past routing of an incoming downlink communication with data originating from the host computer 1216 to be forwarded (e.g., handed over) to a connected UE 1212. Similarly, the base station 1206 need not be aware of the future routing of an outgoing uplink communication originating from the UE 1212 towards the host computer 1216.
  • a host computer 1302 comprises hardware 1304 including a communication interface 1306 configured to set up and maintain a wired or wireless connection with an interface of a different communication device of the communication system 1300.
  • the host computer 1302 further comprises processing circuitry 1308, which may have storage and/or processing capabilities.
  • the processing circuitry 1308 may comprise one or more programmable processors, ASICs, FPGAs, or combinations of these (not shown) adapted to execute instructions.
  • the host computer 1302 further comprises software 1310, which is stored in or accessible by the host computer 1302 and executable by the processing circuitry 1308.
  • the software 1310 includes a host application 1312.
  • the host application 1312 may be operable to provide a service to a remote user, such as a UE 1314 connecting via an OTT connection 1316 terminating at the UE 1314 and the host computer 1302.
  • the host application 1312 may provide user data which is transmitted using the OTT connection 1316.
  • the communication system 1300 further includes a base station 1318 provided in a telecommunication system and comprising hardware 1320 enabling it to communicate with the host computer 1302 and with the UE 1314.
  • the hardware 1320 may include a communication interface 1322 for setting up and maintaining a wired or wireless connection with an interface of a different communication device of the communication system 1300, as well as a radio interface 1324 for setting up and maintaining at least a wireless connection 1326 with the UE 1314 located in a coverage area (not shown in Figure 13) served by the base station 1318.
  • the communication interface 1322 may be configured to facilitate a connection 1328 to the host computer 1302.
  • connection 1328 may be direct or it may pass through a core network (not shown in Figure 13) of the telecommunication system and/or through one or more intermediate networks outside the telecommunication system.
  • the hardware 1320 of the base station 1318 further includes processing circuitry 1330, which may comprise one or more programmable processors, ASICs, FPGAs, or combinations of these (not shown) adapted to execute instructions.
  • the base station 1318 further has software 1332 stored internally or accessible via an external connection.
  • the communication system 1300 further includes the UE 1314 already referred to.
  • the UE’s 1314 hardware 1334 may include a radio interface 1336 configured to set up and maintain a wireless connection 1326 with a base station serving a coverage area in which the UE 1314 is currently located.
  • the hardware 1334 of the UE 1314 further includes processing circuitry 1338, which may comprise one or more programmable processors, ASICs, FPGAs, or combinations of these (not shown) adapted to execute instructions.
  • the UE 1314 further comprises software 1340, which is stored in or accessible by the UE 1314 and executable by the processing circuitry 1338.
  • the software 1340 includes a client application 1342.
  • the client application 1342 may be operable to provide a service to a human or non-human user via the UE 1314, with the support of the host computer 1302.
  • the executing host application 1312 may communicate with the executing client application 1342 via the OTT connection 1316 terminating at the UE 1314 and the host computer 1302.
  • the client application 1342 may receive request data from the host application 1312 and provide user data in response to the request data.
  • the OTT connection 1316 may transfer both the request data and the user data.
  • the client application 1342 may interact with the user to generate the user data that it provides.
  • the host computer 1302, the base station 1318, and the UE 1314 illustrated in Figure 13 may be similar or identical to the host computer 1216, one of the base stations 1206A, 1206B, 1206C, and one of the UEs 1212, 1214 of Figure 12, respectively.
  • the inner workings of these entities may be as shown in Figure 13 and independently, the surrounding network topology may be that of Figure 12.
  • the OTT connection 1316 has been drawn abstractly to illustrate the communication between the host computer 1302 and the UE 1314 via the base station 1318 without explicit reference to any intermediary devices and the precise routing of messages via these devices.
  • the network infrastructure may determine the routing, which may be configured to hide from the UE 1314 or from the service provider operating the host computer 1302, or both. While the OTT connection 1316 is active, the network
  • infrastructure may further take decisions by which it dynamically changes the routing (e.g., on the basis of load balancing consideration or reconfiguration of the network).
  • the wireless connection 1326 between the UE 1314 and the base station 1318 is in accordance with the teachings of the embodiments described throughout this disclosure.
  • One or more of the various embodiments improve the performance of OTT services provided to the UE 1314 using the OTT connection 1316, in which the wireless connection 1326 forms the last segment. More precisely, the teachings of these embodiments may improve the interference caused by and received by UE 1314 and thereby provide benefits such as: e.g., reduced user waiting time, relaxed restriction on file size, better
  • a measurement procedure may be provided for the purpose of monitoring data rate, latency, and other factors on which the one or more embodiments improve.
  • the measurement procedure and/or the network functionality for reconfiguring the OTT connection 1316 may be implemented in the software 1310 and the hardware 1304 of the host computer 1302 or in the software 1340 and the hardware 1334 of the UE 1314, or both.
  • sensors may be deployed in or in association with communication devices through which the OTT connection 1316 passes; the sensors may participate in the measurement procedure by supplying values of the monitored quantities exemplified above, or supplying values of other physical quantities from which the software 1310, 1340 may compute or estimate the monitored quantities.
  • the reconfiguring of the OTT connection 1316 may include message format
  • measurements may involve proprietary UE signaling facilitating the host computer 1302’s measurements of throughput, propagation times, latency, and the like.
  • the measurements may be implemented in that the software 1310 and 1340 causes messages to be transmitted, in particular empty or‘dummy’ messages, using the OTT connection 1316 while it monitors propagation times, errors, etc.
  • FIG 14 is a flowchart illustrating a method implemented in a communication system, in accordance with one embodiment.
  • the communication system includes a host computer, a base station, and a UE which may be those described with reference to Figures 12 and 13. For simplicity of the present disclosure, only drawing references to Figure 14 will be included in this section.
  • the host computer provides user data.
  • sub-step 1402 (which may be optional) of step 1400, the host computer provides the user data by executing a host application.
  • the host computer initiates a transmission carrying the user data to the UE.
  • step 1406 the base station transmits to the UE the user data which was carried in the transmission that the host computer initiated, in accordance with the teachings of the embodiments described throughout this disclosure.
  • step 1408 the UE executes a client application associated with the host application executed by the host computer.
  • FIG. 15 is a flowchart illustrating a method implemented in a communication system, in accordance with one embodiment.
  • the communication system includes a host computer, a base station, and a UE which may be those described with reference to Figures 12 and 13. For simplicity of the present disclosure, only drawing references to Figure 15 will be included in this section.
  • the host computer provides user data.
  • the host computer provides the user data by executing a host application.
  • the host computer initiates a transmission carrying the user data to the UE.
  • the transmission may pass via the base station, in accordance with the teachings of the embodiments described throughout this disclosure.
  • step 1504 (which may be optional), the UE receives the user data carried in the transmission.
  • FIG 16 is a flowchart illustrating a method implemented in a communication system, in accordance with one embodiment.
  • the communication system includes a host computer, a base station, and a UE which may be those described with reference to Figures 12 and 13. For simplicity of the present disclosure, only drawing references to Figure 16 will be included in this section.
  • the UE receives input data provided by the host computer. Additionally or alternatively, in step 1602, the UE provides user data.
  • sub-step 1604 (which may be optional) of step 1600, the UE provides the user data by executing a client application.
  • sub-step 1606 (which may be optional) of step 1602, the UE executes a client application which provides the user data in reaction to the received input data provided by the host computer.
  • the executed client application may further consider user input received from the user. Regardless of the specific manner in which the user data was provided, the UE initiates, in sub-step 1608 (which may be optional), transmission of the user data to the host computer. In step 1610 of the method, the host computer receives the user data transmitted from the UE, in accordance with the teachings of the embodiments described throughout this disclosure.
  • FIG 17 is a flowchart illustrating a method implemented in a communication system, in accordance with one embodiment.
  • the communication system includes a host computer, a base station, and a UE which may be those described with reference to Figures 12 and 13. For simplicity of the present disclosure, only drawing references to Figure 17 will be included in this section.
  • the base station receives user data from the UE.
  • the base station initiates transmission of the received user data to the host computer.
  • step 1704 (which may be optional)
  • the host computer receives the user data carried in the transmission initiated by the base station.
  • any appropriate steps, methods, features, functions, or benefits disclosed herein may be performed through one or more functional units or modules of one or more virtual apparatuses.
  • Each virtual apparatus may comprise a number of these functional units.
  • These functional units may be implemented via processing circuitry, which may include one or more microprocessor or microcontrollers, as well as other digital hardware, which may include Digital Signal Processor (DSPs), special-purpose digital logic, and the like.
  • the processing circuitry may be configured to execute program code stored in memory, which may include one or several types of memory such as Read Only Memory (ROM), Random Access Memory (RAM), cache memory, flash memory devices, optical storage devices, etc.
  • Program code stored in memory includes program instructions for executing one or more telecommunications and/or data communications protocols as well as instructions for carrying out one or more of the techniques described herein.
  • the processing circuitry may be used to cause the respective functional unit to perform corresponding functions according one or more embodiments of the present disclosure.
  • a method performed by a wireless device for adjusting parameters based on a height of the wireless device comprising:
  • the height-related criteria parameter comprises a binary indication of height. 3. The method of embodiment 2 wherein the height-related criteria parameter comprises an indication of“airborne” or“not airborne”.
  • the height-related criteria parameter can comprise one of the group consisting of: High-Altitude, Mid-Altitude, and Normal-Altitude.
  • receiving the at least one measurement configuration with the at least one height-dependent criteria comprises receiving a reportconfiguration for a measID that includes the at least one height- dependent criteria.
  • receiving the at least one measurement configuration comprises receiving a measurement configuration for at least one of the group consisting of: a timeToTrigger parameter, a maxReportCells parameter, a reportlnterval parameter, a reportAmount parameter, and an includeLocationlnfo parameter.
  • determining the height- related parameter of the wireless device comprises receiving the height-related parameter from a network node such as a base station.
  • determining the height- related parameter of the wireless device comprises determining the height-related parameter at the wireless device.
  • determining the height-related parameter at the wireless device comprises determining the height-related parameter based on a number of cells or beams detected. 11. The method of any of the previous embodiments, further comprising:
  • a method performed by a base station for adjusting parameters based on a height of a wireless device comprising:
  • the height-related criteria parameter comprises a binary indication of height.
  • the height-related criteria parameter comprises an indication of“airborne” or“not airborne”.
  • the height-related criteria parameter can comprise more than two indications of height.
  • the height-related criteria parameter can comprise one of the group consisting of: High-Altitude, Mid-Altitude, and Normal-Altitude.
  • transmitting the at least one measurement configuration with the at least one height-dependent criteria comprises transmitting a reportconfiguration for a measID that includes the at least one height- dependent criteria.
  • transmitting the at least one measurement configuration comprises transmitting a measurement configuration for at least one of the group consisting of: a timeToTrigger parameter, a maxReportCells parameter, a reportlnterval parameter, a reportAmount parameter, and an
  • a wireless device for adjusting parameters based on a height of the wireless device comprising:
  • - power supply circuitry configured to supply power to the wireless device.
  • a base station for adjusting parameters based on a height of a wireless device comprising:
  • - power supply circuitry configured to supply power to the base station.
  • radio front-end circuitry connected to the antenna and to processing circuitry, and configured to condition signals communicated between the antenna and the processing circuitry; - the processing circuitry being configured to perform any of the steps of any of the Group A embodiments;
  • an input interface connected to the processing circuitry and configured to allow input of information into the UE to be processed by the processing circuitry
  • a battery connected to the processing circuitry and configured to supply power to the UE.
  • a communication system including a host computer comprising:
  • a communication interface configured to forward the user data to a cellular
  • UE User Equipment
  • the cellular network comprises a base station having a radio interface and processing circuitry, the base station’s processing circuitry configured to perform any of the steps of any of the Group B embodiments.
  • the communication system of the previous embodiment further including the base station.
  • the processing circuitry of the host computer is configured to execute a host
  • the UE comprises processing circuitry configured to execute a client application associated with the host application.
  • the host computer provides user data; and - at the host computer, initiating a transmission carrying the user data to the UE via a cellular network comprising the base station, wherein the base station performs any of the steps of any of the Group B embodiments.
  • a User Equipment configured to communicate with a base station, the UE comprising a radio interface and processing circuitry configured to perform the method of the previous 3 embodiments.
  • a communication system including a host computer comprising:
  • UE User Equipment
  • the UE comprises a radio interface and processing circuitry, the UE’s components configured to perform any of the steps of any of the Group A embodiments.
  • the cellular network further includes a base station configured to communicate with the UE.
  • the processing circuitry of the host computer is configured to execute a host application, thereby providing the user data
  • the UE’s processing circuitry is configured to execute a client application
  • the host computer initiating a transmission carrying the user data to the UE via a cellular network comprising the base station, wherein the UE performs any of the steps of any of the Group A embodiments.
  • a communication system including a host computer comprising:
  • - communication interface configured to receive user data originating from a
  • the UE comprises a radio interface and processing circuitry, the UE’s processing circuitry configured to perform any of the steps of any of the Group A embodiments.
  • a communication interface configured to forward to the host computer the user data carried by a transmission from the UE to the base station.
  • the processing circuitry of the host computer is configured to execute a host application
  • the UE’s processing circuitry is configured to execute a client application
  • the UE’s processing circuitry is configured to execute a client application
  • the user data to be transmitted is provided by the client application in response to the input data.
  • a communication system including a host computer comprising a communication interface configured to receive user data originating from a transmission from a User Equipment, UE, to a base station, wherein the base station comprises a radio interface and processing circuitry, the base station’s processing circuitry configured to perform any of the steps of any of the Group B embodiments.
  • the communication system of the previous embodiment further including the base station.
  • the communication system of the previous 2 embodiments further including the UE, wherein the UE is configured to communicate with the base station.
  • the processing circuitry of the host computer is configured to execute a host
  • the UE is configured to execute a client application associated with the host
  • the host computer receiving, from the base station, user data originating from a transmission which the base station has received from the UE, wherein the UE performs any of the steps of any of the Group A embodiments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Systems and methods for adjusting parameters based on an airborne status are provided. In some embodiments, a method performed by a wireless device includes receiving at least one measurement or reporting configuration with at least one airborne status criterion; determining the airborne status of the wireless device; and if the airborne status of the wireless device satisfies the at least one airborne status criterion, performing a measurement or reporting according to the at least one measurement or reporting configuration. In this way, when there is a configuration option where certain parameters can be directly changed based on airborne status, the new configuration can take effect as soon as the airborne status has changed. Further, if a reporting configuration is conditioned on airborne status instead of an individual parameter, two distinct reporting configurations can be configured with parameter values suitable for airborne and non-airborne wireless devices.

Description

SYSTEMS AND METHODS FOR ADJUSTING PARAMETERS BASED ON AN
AIRBORNE STATUS
Related Applications
This application claims the benefit of provisional patent application serial number 62/653,308, filed April 5, 2018, the disclosure of which is hereby incorporated herein by reference in its entirety.
Technical Field
The present disclosure relates to adjusting parameters based on an airborne status of a wireless device in a cellular communications network.
Background
The current disclosure is described within the context of Long Term Evolution (LTE), i.e. , Evolved Universal Mobile Telecommunications Service (UMTS) Terrestrial Radio Access Network (E-UTRAN). It should be understood that the problems and solutions described herein are equally applicable to wireless access networks and User Equipments (UEs) implementing other access technologies and standards. LTE is used as an example technology where the invention is suitable, and using LTE in the
description therefore is particularly useful for understanding the problem and solutions solving the problem.
In RAN#75, the Release-15 Study Item (SI) on enhanced support for aerial vehicles was approved. As described in RP-170779,“New SID on Enhanced Support for Aerial Vehicles,” NTT DOCOMO INC, Ericsson, an air-borne UE may experience radio propagation characteristics that are likely to be different from those experienced by a UE on the ground. As long as an aerial vehicle is flying at low altitude, relative to the Base Station (BS) antenna height, it behaves like a conventional UE. However, once an aerial vehicle is flying well above the BS antenna height, the Uplink (UL) signal from the aerial vehicle becomes more visible to multiple cells due to line-of-sight propagation conditions. The UL signal from an aerial vehicle increases interference in the neighbour cells, and the increased interference gives a negative impact to the UE on the ground, e.g., smartphone, Internet of Things (loT) device, etc. Similarly, applying these line-of-sight conditions to multiple cells causes higher downlink (DL) interference at the aerial UE. Improved ways of dealing with airborne UEs are needed.
Summary
Systems and methods for adjusting parameters based on an airborne status are provided. In some embodiments, a method performed by a wireless device for adjusting parameters based on an airborne status of the wireless device includes receiving at least one measurement or reporting configuration with at least one airborne status criterion; determining the airborne status of the wireless device; and if the airborne status of the wireless device satisfies the at least one airborne status criterion, performing a
measurement or reporting according to the at least one measurement or reporting configuration. In this way, when there is a configuration option where certain parameters can be directly changed based on airborne status, the new configuration can take effect as soon as the airborne status has changed. Further, if a reporting configuration is conditioned on airborne status instead of an individual parameter, two distinct reporting configurations can be configured with parameter values suitable for airborne and non- airborne wireless devices.
In some embodiments, determining the airborne status of the wireless device comprises determining a binary indication of airborne status. In some embodiments, the airborne status of the wireless device comprises an indication of“airborne” or“not airborne.”
In some embodiments, determining the airborne status of the wireless device comprises determining the airborne status of the wireless device based on at least one of the group consisting of: a height-related parameter of the wireless device, a number of cells the wireless device sees, and a number of beams the wireless device sees.
In some embodiments, determining the airborne status of the wireless device comprises determining the airborne status of the wireless device based on the height- related parameter of the wireless device which can comprise more than two indications of height.
In some embodiments, the height-related parameter of the wireless device comprises one of the group consisting of: High-Altitude, Mid-Altitude, and Normal-Altitude. In some embodiments, determining the airborne status of the wireless device comprises determining the airborne status of the wireless device based on the number of cells the wireless device sees.
In some embodiments, the number of cells the wireless device sees is based on a number of reference signals the wireless device sees from different cells. In some embodiments, each of the reference signals is one of the group consisting of: a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), a Cell Specific Reference Signal (CRS), and a Synchronization Signal Block (SSB).
In some embodiments, receiving the at least one measurement or reporting configuration comprises receiving a reportconfiguration for a measID that includes the at least one airborne status criterion.
In some embodiments, prior to performing the measurement or reporting, the method also includes determining that the airborne status of the wireless device matches the at least one airborne status criterion of the reportconfiguration.
In some embodiments, the method also includes determining that the airborne status of the wireless device does not match the at least one airborne status criterion of the reportconfiguration·, and, in response to determining that the airborne status of the wireless device does not match, ignoring a measurement object linked to the reportconfiguration.
In some embodiments, receiving the at least one measurement or reporting configuration comprises receiving a configuration for at least one of: a timeToTrigger parameter, a maxReportCells parameter, a reportlnterval parameter, a reportAmount parameter, or an includeLocationlnfo parameter.
In some embodiments, determining the airborne status of the wireless device comprises receiving the airborne status of the wireless device from a network node such as a radio access node.
In some embodiments, determining the airborne status of the wireless device comprises determining the airborne status of the wireless device at the wireless device.
In some embodiments, a wireless device includes one or more transceivers; one or more processors; and memory. The memory includes instructions executable by the one or more processors whereby the wireless device is operable to: receive at least one measurement or reporting configuration with at least one airborne status criterion;
determine an airborne status of the wireless device; and if the airborne status of the wireless device satisfies the at least one airborne status criterion, perform a measurement or reporting according to the at least one measurement or reporting configuration.
In some embodiments, a radio access node includes one or more network
interfaces; one or more processors; and memory. The memory includes instructions executable by the one or more processors whereby the radio access node is operable to: transmit, to the wireless device, at least one measurement or reporting configuration with at least one airborne status criterion; determine an airborne status of the wireless device; and, if the airborne status of the wireless device satisfies the at least one airborne status criterion, receive a measurement or report according to the at least one measurement or reporting configuration.
Brief Description of the Drawings
The accompanying drawing figures incorporated in and forming a part of this specification illustrate several aspects of the disclosure, and together with the description serve to explain the principles of the disclosure.
Figure 1 depicts a situation in which a User Equipment (UE) that is flying at a height above the boresight of the base station antennas is likely to be served by multiple base station antennas;
Figures 2A through 2C are maps showing the best serving cell as seen by UEs at different heights;
Figures 3A through 3C are maps that show the geometry Signal to Interference Ratio (SIR) at different heights;
Figure 4 illustrates one example of a cellular communications network according to some embodiments of the present disclosure;
Figures 5A through 5B illustrate the operation of a wireless device for adjusting parameters based on an airborne status of the wireless device according to some embodiments of the present disclosure;
Figures 6A through 6B illustrate the operation of a radio access node for adjusting parameters based on an airborne status of a wireless device according to some
embodiments of the present disclosure;
Figure 7 is a schematic block diagram of a radio access node according to some embodiments of the present disclosure; Figure 8 is a schematic block diagram that illustrates a virtualized embodiment of the radio access node according to some embodiments of the present disclosure;
Figure 9 is a schematic block diagram of the radio access node according to some other embodiments of the present disclosure;
Figure 10 is a schematic block diagram of a UE according to some embodiments of the present disclosure;
Figure 11 is a schematic block diagram of the UE according to some other embodiments of the present disclosure;
Figure 12 is a schematic block diagram of the radio access node of Figure 9 according to some other embodiments of the present disclosure;
Figure 13 is a schematic block diagram of a UE according to some embodiments of the present disclosure; and
Figures 14 through 17 are flowcharts illustrating methods implemented in a communication system according to some other embodiments of the present disclosure.
Detailed Description
The embodiments set forth below represent information to enable those skilled in the art to practice the embodiments and illustrate the best mode of practicing the embodiments. Upon reading the following description in light of the accompanying drawing figures, those skilled in the art will understand the concepts of the disclosure and will recognize
applications of these concepts not particularly addressed herein. It should be understood that these concepts and applications fall within the scope of the disclosure.
Radio Node: As used herein, a“radio node” is either a radio access node or a wireless device.
Radio Access Node: As used herein, a“radio access node” or“radio network node” is any node in a radio access network of a cellular communications network that operates to wirelessly transmit and/or receive signals. Some examples of a radio access node include, but are not limited to, a base station (e.g., a New Radio (NR) base station (gNB) in a Third Generation Partnership Project (3GPP) Fifth Generation (5G) NR network or an enhanced or evolved Node B (eNB) in a 3GPP Long Term Evolution (LTE) network), a high-power or macro base station, a low-power base station (e.g., a micro base station, a pico base station, a home eNB, or the like), and a relay node. Core Network Node: As used herein, a“core network node” is any type of node in a core network. Some examples of a core network node include, e.g., a Mobility
Management Entity (MME), a Packet Data Network Gateway (P-GW), a Service Capability Exposure Function (SCEF), or the like.
Wireless Device: As used herein, a“wireless device” is any type of device that has access to (i.e. , is served by) a cellular communications network by wirelessly transmitting and/or receiving signals to a radio access node(s). Some examples of a wireless device include, but are not limited to, a User Equipment device (UE) in a 3GPP network and a Machine Type Communication (MTC) device.
Network Node: As used herein, a“network node” is any node that is either part of the radio access network or the core network of a cellular communications network/system.
Note that the description given herein focuses on a 3GPP cellular communications system and, as such, 3GPP terminology or terminology similar to 3GPP terminology is oftentimes used. Flowever, the concepts disclosed herein are not limited to a 3GPP system.
Note that, in the description herein, reference may be made to the term“cell;” however, particularly with respect to 5G NR concepts, beams may be used instead of cells and, as such, it is important to note that the concepts described herein are equally applicable to both cells and beams.
As previously discussed, In RAN#75, the Release-15 Study Item (SI) on enhanced support for aerial vehicles was approved. As described in RP-170779,“New SID on Enhanced Support for Aerial Vehicles,” NTT DOCOMO INC, Ericsson, an air-borne UE may experience radio propagation characteristics that are likely to be different from those experienced by a UE on the ground. As long as an aerial vehicle is flying at low altitude, relative to the base station (BS) antenna height, it behaves like a conventional UE.
Flowever, once an aerial vehicle is flying well above the BS antenna height, the uplink (UL) signal from the aerial vehicle becomes more visible to multiple cells due to line-of-sight propagation conditions. The UL signal from an aerial vehicle increases interference in the neighbour cells and the increased interference gives a negative impact to the UE on the ground, e.g. smartphone, Internet of Things (loT) device, etc. Similarly, applying these line- of-sight conditions to multiple cells causes higher downlink (DL) interference at the aerial UE. Further as the BS antennas are down tilted, a drone UE on the ground or below the BS height is likely served by the main lobe of the antennas. However, when the drone UE is flying above the BS antenna boresight, it is likely served by the side or back lobes of the antennas, which have reduced antenna gains compared to the antenna gain of the main lobe. Figure 1 depicts the situation. Note that a drone UE in the present invention is also referred to using alternative terminologies such as Unmanned Aerial Vehicle (UAV), aerial UE, etc.
The maps in Figures 2A-2C show that the coverage area of an eNB from the perspective of a drone UE in the sky, which may be fragmented into several discontinuous areas, while the coverage area of an eNB from the perspective of a UE on the ground is usually an approximate closed set. Also, for a drone UE in the sky, a certain far away cell may appear to be the best cell. This is different when compared to the case of terrestrial UEs on the ground, where the best cell is generally closer to the terrestrial UE on the ground. In this map, locations that are served by the same site are labeled by the same color, assuming that UEs connect to the strongest cell. Figures 2A, 2B, and 2C correspond to the situation at 0 m, 50 m and 300 m above ground, respectively.
In Figures 3A-3C, the geometry Signal to Interference Ratio (SIR) is shown at different heights. As expected, the higher the UE flying altitude, the lower the quality of the signal becomes. The outcome of the Release-15 SI is captured in TR 36.777 and it was concluded that there are numerous possible standard based enhancements that can be introduced to LTE.
In RAN#78, the Work Item (Wl) on enhanced support for aerial vehicles was approved (see, RP-172826, New WID on Enhanced LTE Support for Aerial Vehicles,” Ericsson).
The objective is to specify the following improvements for enhanced LTE support for aerial vehicles. Note: enhancements are built on existing mobility mechanisms, and these mechanisms may be enhanced if identified to be needed. The objectives of the Wl are as below:
o Specify enhancements to support improved mobility performance and interference
detection in the following areas [RAN2]: o Enhancements to existing measurement reporting mechanisms such as definition of new events, enhanced triggering conditions, mechanisms to control the amount of measurement reporting.
o Enhancements to mobility for Aerial UEs such as conditional Handover (HO) and enhancements based on information such as location information, UE’s airborne status, flight path plan, etc. o Specify enhancements to support indication of UE’s airborne status and indication of the UE’s support of UAV related functions in an LTE network e.g. UE radio capability
[RAN2]
o Signaling support for subscription based identification [RAN2 lead, RAN3]
o Specify S1/X2 signaling to support subscription based aerial UE identification o Specify UL power control enhancements in the following areas [RAN1 , RAN2]
o UE specific fractional pathloss compensation factor
o Extending the supported range of UE specific P0 parameter
In RAN2#101 , the discussion on UE flight mode detection started, and the following agreements were made:
=> Introduce new measurement event/modify existing measurement events for interference detection
Agreement:
Provide reference altitude information (including threshold) to UAV UE provided by eNB to assist UE to identify its status (i.e. , airborne status).
The first agreement is about explicit flight mode detection where based on changed interference conditions, the UE triggers a measurement report. From that, eNB can deduce flight mode. There have also been proposals that eNB could poll flight mode of the UE. The second agreement can be used in several ways but basically it gives a common reference point for UE and network to define flight status. It should be noted that it is optional for the network to configure the UE with the threshold value.
For aerial UEs, the excessive DL interference and the down-titled BS antennas contribute to a worse perceived Signal to Interference plus Noise Ratio (SINR), a fast- changing best cell and possibly a faraway best cell, compared to the terrestrial UEs. That is, it is likely that UEs in airborne mode should be configured differently compared to a terrestrial UE. One proposal has been to scale the time-to-trigger (TTT) parameter that defines when a measurement result is sent by the UE after an event triggers. When UE is airborne, it is beneficial to trigger measurement results earlier compared to terrestrial UEs. This is similar to what already exists in LTE specification where TTT can be scaled based on a mobility state of the UE, where a mobility state is defined as a number of HOs seen by the UE based on certain configuration. Similarly, in idle mode, in LTE a cell reselection threshold can be scaled based on UEs mobility state. This has also been proposed for drones based on height/airborne status.
There currently exist certain challenges. Proposals on scaling TTT and scaling cell reselection parameters are based on current LTE mobility-based scaling. Other aspects on what configurations and how to scale have not yet been presented. Height dependent TTT-scaling has been considered in many proposals. Airborne status has not been specified in current LTE or NR versions.
Systems and methods for adjusting parameters based on an airborne status are provided. In some embodiments, a method performed by a wireless device for adjusting parameters based on an airborne status of the wireless device includes receiving at least one measurement or reporting configuration with at least one airborne status criterion; determining the airborne status of the wireless device; and if the airborne status of the wireless device satisfies the at least one airborne status criterion, performing a
measurement or reporting according to the at least one measurement or reporting configuration. In this way, when there is a configuration option where certain parameters can be directly changed based on airborne status, the new configuration can take effect as soon as the airborne status has changed. Further, if a reporting configuration is conditioned on airborne status instead of an individual parameter, two distinct reporting configurations can be configured with parameter values suitable for airborne and non- airborne wireless devices.
Certain aspects of the current disclosure and their embodiments may provide solutions to the aforementioned or other challenges. In some embodiments, scaling and/or selection of parameter values and/or Information Elements (lEs) (including parameters with different values) in an efficient way is proposed. For example, instead of scaling TTT, some embodiments herein condition a whole report configuration on airborne status such that also other parameters are included in the report configuration. As used herein, an airborne status is an indication of whether a wireless device or other node is currently airborne. In some embodiments, the airborne status is a binary indication of airborne status such as an indication of“airborne” or“not airborne.” In some embodiments, the airborne status can be determined based on some combination of a height-related parameter of the wireless device, a number of cells the wireless device sees, and a number of beams the wireless device sees. In some embodiments the height-related parameter of the wireless device is one of: High-Altitude, Mid-Altitude, and Normal-Altitude.
Conditioning the IE for reporting configuration with airborne status and/or height is accomplished in some embodiments due to the LTE Radio Resource Management (RRM) measurement framework. A Measurement Object (MO) points to an E-UTRAN carrier and different reporting configurations may be linked to the same MO. Each linkage is identified by a measurement ID.
See the following lEs for reference:
• The IE Measld is used to identify the linking of a measurement object and a
reporting configuration.
• The IE MeasObjectld is used to identify a measurement object configuration.
• The IE ReportConfigld is used to identify a measurement reporting configuration.
MeasldToAddModList information element
- ASN1 START
MeasldToAddModList ::= SEQUENCE (SIZE (1..maxMeasld)) OF
MeasldToAddMod
MeasldT oAddModList-v1310 ::= SEQUENCE (SIZE (1..maxMeasld)) OF
MeasldT oAddMod-v1310
MeasldToAddModListExt-r12 ::= SEQUENCE (SIZE (1..maxMeasld)) OF
MeasldToAddModExt-r12
MeasldT oAddModListExt-v1310 ::= SEQUENCE (SIZE (1..maxMeasld)) OF
MeasldT oAddMod-v1310
MeasldToAddMod ::= SEQUENCE {
measld Measld,
measObjectld MeasObjectld, reportConfigld ReportConfigld
}
MeasldToAddModExt-r12 :: = SEQUENCE {
measld-v1250 Measld-v1250,
measObjectld-r12 MeasObjectld,
reportConfigld-r12 ReportConfigld
}
MeasldT oAddMod-v1310 ::= SEQUENCE {
measObjectld-v1310 MeasObjectld-v1310 OPTIONAL
}
- ASN1STOP
The same structure for RRM is adopted in NR 38.331 , and thus what is described here is valid for NR as well.
There are, proposed herein, various embodiments which address one or more of the issues disclosed herein. In some embodiments, a method performed by a wireless device for adjusting parameters based on a height of the wireless device includes receiving at least one measurement configuration with at least one height-dependent criteria;
determining a height-related parameter of the wireless device; and, if the height-related parameter of the wireless device satisfies the at least one height-dependent criteria, the wireless device performs a measurement according to the at least one measurement configuration. In some embodiments, a method performed by a base station for adjusting parameters based on a height of a wireless device includes transmitting to the wireless device at least one measurement configuration with at least one height-dependent criteria; optionally determining a height-related parameter of the wireless device; and, If the height- related parameter of the wireless device satisfies the at least one height-dependent criteria, receiving a measurement according to the at least one measurement configuration.
Certain embodiments may provide one or more of the following technical
advantages. When there is a configuration option where certain parameters or lEs can be directly changed based on UEs airborne status, the new configuration is effective as soon as the UE’s airborne status has changed, such as it is above a certain height.
Further, when an IE reporting configuration is conditioned on airborne status instead of an individual parameter like TTT, if described, two distinct reporting configurations can be configured to airborne and non-airborne UE status with parameter values suitable for airborne and non-airborne UEs, respectively.
Some of the parameters below that can be especially useful to tune based on airborne status are a timeToTrigger parameter, a maxReportCells parameter, a
reportlnterval parameter, a reportAmount parameter, and an includeLocationlnfo parameter. All of these highlighted parameters are related to how fast the UE reports, how often, how many cells, report amount, and whether to include location information.
ReportConfigEUTRA information element
- ASN1 START
ReportConfigEUTRA ::= SEQUENCE {
triggerType CHOICE {
event SEQUENCE {
eventld CHOICE {
eventAI SEQUENCE {
a1 -Threshold ThresholdEUTRA
},
eventA2 SEQUENCE {
a2-Threshold ThresholdEUTRA
},
eventA3 SEQUENCE {
a3-Offset INTEGER (-30..30), reportOnLeave BOOLEAN
},
eventA4 SEQUENCE {
a4-Threshold ThresholdEUTRA
},
eventA5 SEQUENCE {
a5-Threshold1 ThresholdEUTRA, a5-Threshold2 ThresholdEUTRA
},
eventA6-r10 SEQUENCE {
a6-Offset-r10 INTEGER (-30..30), a6-ReportOnLeave-r10 BOOLEAN
},
eventC1-r12 SEQUENCE {
d-Threshold-r12 ThresholdEUTRA-v1250, d-ReportOnLeave-r12 BOOLEAN
},
eventC2-r12 SEQUENCE {
c2-RefCSI-RS-r12 MeasCSI-RS-ld-r12, c2-Offset-r12 INTEGER (-30..30),
c2-ReportOnl_eave-r12 BOOLEAN
},
eventV1-r14 SEQUENCE {
v1-Threshold-r14 SL-CBR-r14
},
eventV2-r14 SEQUENCE {
v2-Threshold-r14 SL-CBR-r14
}
},
hysteresis Hysteresis,
timeToTrigger TimeToTrigger
},
periodical SEQUENCE {
purpose ENUMERATED {
reportStrongestCells, reportCGI}
}
},
triggerQuantity ENUMERATED {rsrp, rsrq},
reportQuantity ENUMERATED {sameAsTriggerQuantity, both}, maxReportCells INTEGER (1..maxCellReport),
reportlnterval Reportlnterval,
reportAmount ENUMERATED {r1, r2, r4, r8, P6, r32, r64, infinity},
[[ si-RequestForHO-r9 ENUMERATED {setup} OPTIONAL, - Cond reportCGI
ue-RxTxTimeDiffPeriodical-r9 ENUMERATED {setup} OPTIONAL - Need OR
]],
[[ includeLocationlnfo-r10 ENUMERATED {true} OPTIONAL, -- Need OR
reportAddNeighMeas-r10 ENUMERATED {setup} OPTIONAL - Need OR
]],
[[ alternativeTimeToTrigger-r12 CHOICE {
release NULL,
setup TimeToTrigger
} OPTIONAL, - Need ON
useT312-r12 BOOLEAN OPTIONAL, - Need ON usePSCell-r12 BOOLEAN OPTIONAL, - Need ON aN-Threshold1 -v1250 RSRQ-RangeConfig-r12
OPTIONAL, - Need ON
a5-Threshold2-v1250 RSRQ-RangeConfig-r12
OPTIONAL, - Need ON
reportStrongestCSI-RSs-r12 BOOLEAN OPTIONAL, - Need ON reportCRS-Meas-r12 BOOLEAN OPTIONAL, - Need ON
triggerQuantityCSI-RS-r12 BOOLEAN OPTIONAL - Need ON
]],
[[ reportSSTD-Meas-r13 BOOLEAN OPTIONAL,
Need ON
rs-sinr-Config-r13 CHOICE {
release NULL,
setup SEQUENCE {
triggerQuantity-v1310 ENUMERATED {sinr}
OPTIONAL, - Need ON
aN-Threshold1 -r13 RS-SINR-Range-r13 OPTIONAL,
- Need ON
a5-Threshold2-r13 RS-SINR-Range-r13 OPTIONAL,
- Need ON
reportQuantity-v1310 ENUMERATED {rsrpANDsinr, rsrqANDsinr, all}
}
} OPTIONAL, - Need ON useWhiteCellList-r13 BOOLEAN OPTIONAL,
- Need ON
measRSSI-ReportConfig-r13 MeasRSSI-ReportConfig-r13
OPTIONAL, - Need ON
includeMultiBandlnfo-r13 ENUMERATED {true} OPTIONAL,
- Cond reportCGI
ul-DelayConfig-r13 UL-DelayConfig-r13 OPTIONAL - Need ON
]]
[[ ue-RxTxTimeDiffPeriodicalTDD-r13 BOOLEAN OPTIONAL
- Need ON
]]
[[
purpose-v1430 ENUMERATED {reportLocation, sidelink, spare2, spare 1 }
OPTIONAL - Need ON
]]
}
RSRQ-RangeConfig-
Figure imgf000016_0001
CHOICE {
release NULL,
setup RSRQ-Range-v1250
}
ThresholdEUTRA ::= CHOICE{
threshold-RSRP RSRP-Range,
threshold-RSRQ RSRQ-Range
} ThresholdEUTRA-v1250 ::= CSI-RSRP-Range-r12
MeasRSSI-ReportConfig-r13 ::= SEQUENCE {
channelOccupancyThreshold-r13 RSSI-Range-r13 OPTIONAL --
Need OR
}
- ASN1STOP
Figure 4 illustrates one example of a cellular communications network 400 according to some embodiments of the present disclosure. In the embodiments described herein, the cellular communications network 400 is a 5G NR network. In this example, the cellular communications network 400 includes base stations 402-1 and 402-2, which in LTE are referred to as eNBs and in 5G NR are referred to as gNBs, controlling corresponding macro cells 404-1 and 404-2. The base stations 402-1 and 402-2 are generally referred to herein collectively as base stations 402 and individually as base station 402. Likewise, the macro cells 404-1 and 404-2 are generally referred to herein collectively as macro cells 404 and individually as macro cell 404. The cellular communications network 400 may also include a number of low power nodes 406-1 through 406-4 controlling corresponding small cells 408-1 through 408-4. The low power nodes 406-1 through 406-4 can be small base stations (such as pico or femto base stations) or Remote Radio Heads (RRHs), or the like. Notably, one or more of the small cells 408-1 through 408-4 may alternatively be provided by the base stations 402. The low power nodes 406-1 through 406-4 are generally referred to herein collectively as low power nodes 406 and individually as low power node 406. Likewise, the small cells 408-1 through 408-4 are generally referred to herein collectively as small cells 408 and individually as small cell 408. The base stations 402 (and optionally the low power nodes 406) are connected to a core network 410.
The base stations 402 and the low power nodes 406 provide service to wireless devices 412-1 through 412-5 in the corresponding cells 404 and 408. The wireless devices 412-1 through 412-5 are generally referred to herein collectively as wireless devices 412 and individually as wireless device 412. The wireless devices 412 are also sometimes referred to herein as UEs.
Figure 5A illustrates a method performed by a wireless device for adjusting parameters based on an airborne status of the wireless device 412. The wireless device 412 receives at least one measurement or reporting configuration with at least one airborne status criterion (step 500). The wireless device 412 determines the airborne status of the wireless device 412 (step 502). If the airborne status of the wireless device 1000 satisfies the at least one airborne status criterion, the wireless device 412 performs a measurement or reporting according to the at least one measurement or reporting configuration (step 504).
Figure 5B illustrates an embodiment of the method described in Figure 5A where the airborne status criterion is a height-dependent criterion. Figure 5B illustrates a method performed by a wireless device for adjusting parameters based on a height of the wireless device. The wireless device receives at least one measurement configuration with at least one height-dependent criterion (step 500-B). In some embodiments, the height-related criteria parameter may be a binary indication of height such as“airborne” or“not airborne”. In some embodiments, the height-related criteria parameter may be more than two indications of height such as High-Altitude, Mid-Altitude, and Normal-Altitude.
The wireless device also determines a height-related parameter of the wireless device (step 502-B). In some embodiments, this includes receiving the height-related parameter from a network node such as a base station. In some embodiments, this includes determining the height-related parameter at the wireless device such as by determining the height-related parameter based on a number of cells or beams detected.
If the height-related parameter of the wireless device satisfies the at least one height-dependent criteria, the wireless device performs a measurement according to the at least one measurement configuration (step 504-B).
Figure 6A illustrates a method performed by a radio access node 700 (shown in Figure 7) for adjusting parameters based on an airborne status of a wireless device 412. The radio access node 700 transmits to the wireless device 412 at least one measurement or reporting configuration with at least one airborne status criterion (step 600). The radio access node 700 optionally determines the airborne status of the wireless device 412 (step 602). If the airborne status of the wireless device 412 satisfies the at least one airborne status criterion, the radio access node 700 receives a measurement or report according to the at least one measurement or reporting configuration (step 604).
Figure 6B illustrates an embodiment of the method described in Figure 6A where the airborne status criterion is a height-dependent criterion. Figure 6B illustrates a method performed by the radio access node 700 such as a base station for adjusting parameters based on a height of a wireless device 412. The base station (or any other suitable network node) transmits to the wireless device at least one measurement configuration with at least one height-dependent criteria (step 600-B). The base station then optionally determines a height-related parameter of the wireless device 412 (step 602-B). In some embodiments, this is not necessary since the wireless device 412 determines this parameter for itself. If the height-related parameter of the wireless device 412 satisfies the at least one height-dependent criteria, the base station receives a measurement according to the at least one measurement configuration (step 604-B).
When performing measurements, UE should check if the reporting configuration linked to a measID includes parameter for airborne status, or height.
In some embodiments, the following changes might be made to specifications:
1. In reportconfigEUTRA in 36.331 or reportconfigNR in 38.331 , add a parameter which tells whether this reporting configuration should be considered based on whether certain conditions are met. In one example, this could be that UE is below or above a certain height, or within a margin. Alternatively it can be called airborne status. There may also be speed/location component instead of, or in addition to the airborne status.
2. As part A) add a procedural text in 36.331 or 38.331 for the UE to check the
airborne status of the UE for example based on reference altitude provided by the network. As part B) add ASN1 for the criteria for the UE to detect airborne status.
3. Add in procedural text in performing measurements, 5.5.3.1 in 36.331 and 5.5.3.1 in 38.331 such that if there is parameter for airborne status (or other condition) in the reportconfiguration for the measID, UE shall check whether the airborne status(or height, or location, or speed or a combination) of the UE matches the airborne status of the reporting configuration. If it does not match, the UE should ignore the MO linked to that reporting configuration. If it does UE can proceed with measurements normally.
In addition to the embodiment discussed above, the other two RRC changes 1 and 2 are needed. In the second RRC change, the UE determines its airborne status. As subsequent embodiments, ways for the UE to determine the airborne status/height that are defined that are different from the prior art. An alternative way to determine airborne status is based on a number of cells the UE 412 sees for LTE and for NR it can be a combination of a number of cells and a number of beams as in NR the reference signals from which a cell may be detected corresponding to Primary Synchronization Signal (PSS) / Secondary Synchronization Signal (SSS) / Cell-specific Reference Signal (CRS) is Synchronization Signal Block (SSB) which contains NR-PSS/NR-SSS and NR-Physical Broadcasting Channel (PBCH) which includes a Demodulation Reference Signal (DMRS) as the reference signal. One cell may transmit one or multiple SSBs which are beamformed. Cell quality in NR is defined based on one or multiple SSBs detected by the UE.
In some embodiments, that airborne status detection could be determined based on any combination of the following:
• LTE: UE counts a cell detected when it:
o detects a Physical Cell Identifier (PCI) from PSS/SSS
o detects PCI from PSS/SSS and RSRP of the cell is above or within a threshold
• NR: UE counts SSB detected when it:
o detects NR-PSS/NR-SSS and is able to decode PBCH
o detects NR-PSS/NR-SSS and is able to decode PBCH and SSB-RSRP is above a threshold
The UE 412 can count all detected cells/SSBs or UE can count those detected cells/SSBs that are included e.g. in a whitelist of cells provided in the measurement configuration. The UE 412 may need to detect the cells within a time provided to the UE 412. In NR, for cell detection, the UE 412 can use the cell detection criteria defined in 38.331.
Airborne status can then be determined based on the number of cells/SSBs or a combination.
In some embodiments the airborne status is a binary state such as airborneState:
The state detection criteria below are examples of an airborne detection.
State detection criteria:
Airborne state criteria: If both or one of the following two criteria are met:
1 > If average number of cells N* or M* SSB Beams exceeds a threshold S*, which can be from RS-measurements, PSS or SSS detection.
2> Height above threshold h*
‘should be configurable.
State transitions:
The UE shall:
- if the criteria for airborneState is detected:
- enter airborneState.
- else if criteria for airborneState is not detected during time period Tcs:
- leave groundState.
ConfigApplication rules
UE shall apply the following scaling rules:
- If airborneState is exited:
- Apply ReportConfigEUTRA-ground
- If airborneState is detected:
- Apply ReportConfigEUTRA-airborne
Example with non-binary airborneState
The second case is where the airborne status is a non-binary state
The state detection is once again an example of an airborne detection
State detection criteria:
High-Altitude-Airborne state criteria:
1 > If average number of cells N1* or M1 * SSB Beams exceeds a threshold S1 *, which can be RS-measurements, PSS or SSS detection. 2> Height above threshold hi *
Mid-Altitude-Airborne state criteria
1 > If average number of cells N2* or M2* SSB Beams exceeds a threshold S2* which can be RS-measurements, ... and ... . 2> Height above threshold h2*
‘should be configurable.
State transitions:
The UE shall:
- if the criteria for High-altitude-airborneState is detected: - enter High-altitude-airborneState.
- if the criteria for Mid-altitude-airborneState is detected:
- enter Mid-altitude-airborneState.
- else if criteria for Mid-altitude-airborneState or High-altitude-airborneState is not detected during time period Tcs: - enter Normal-altitude-State.
ConfigApplication rules
UE shall apply the following scaling rules:
- If neither High-altitude-airborneState or is detected:
- Keep the same configuration - If High-altitude-airborneState is detected:
- Apply measurement config for high-altitude
- If Mid-altitude-airborneState is detected:
- Apply measurement config for mid-altitude Example RRC changes for LTE when airborne status can be high or medium and when the number of cells detected is used as the metric to determine airborne status:
First change:
ReportConfigEUTRA information element
- ASN1 START
ReportConfigEUTRA ::= SEQUENCE {
triggerType CHOICE {
event SEQUENCE {
eventld CHOICE {
eventAI SEQUENCE {
a1 -Threshold ThresholdEUTRA
},
eventA2 SEQUENCE {
a2-Threshold ThresholdEUTRA
},
eventA3 SEQUENCE {
a3-Offset INTEGER (-30..30), reportOnLeave BOOLEAN
},
eventA4 SEQUENCE {
a4-Threshold ThresholdEUTRA
},
eventA5 SEQUENCE {
a5-Threshold1 ThresholdEUTRA,
a5-Threshold2 ThresholdEUTRA
},
eventA6-r10 SEQUENCE {
a6-Offset-r10 INTEGER (-30..30), a6-ReportOnLeave-r10 BOOLEAN
},
eventC1-r12 SEQUENCE {
d-Threshold-r12 ThresholdEUTRA-v1250, d-ReportOnl_eave-r12 BOOLEAN
},
eventC2-r12 SEQUENCE {
c2-RefCSI-RS-r12 MeasCSI-RS-ld-r12,
c2-Offset-r12 INTEGER (-30..30), c2-ReportOnLeave-r12 BOOLEAN
},
eventV1-r14 SEQUENCE {
v1-Threshold-r14 SL-CBR- 4
},
eventV2-r14 SEQUENCE {
v2-Threshold-r14 SL-CBR- 4 }
},
hysteresis Hysteresis,
timeToTrigger TimeToTrigger
},
periodical SEQUENCE {
purpose ENUMERATED {
reportStrongestCells, reported}
}
},
triggerQuantity ENUMERATED {rsrp, rsrq},
reportQuantity ENUMERATED {sameAsTriggerQuantity, both}, maxReportCells INTEGER (1..maxCellReport),
reportlnterval Reportlnterval,
reportAmount ENUMERATED {r1, r2, r4, r8, P6, r32, r64, infinity},
[[ si-RequestForHO-r9 ENUMERATED {setup} OPTIONAL, - Cond reportCGI
ue-RxTxTimeDiffPeriodical-r9 ENUMERATED {setup} OPTIONAL - Need OR
]],
[[ includeLocationlnfo-r10 ENUMERATED {true} OPTIONAL, -- Need OR
reportAddNeighMeas-r10 ENUMERATED {setup} OPTIONAL - Need OR
]],
[[ alternativeTimeToTrigger-r12 CHOICE {
release NULL,
setup TimeToTrigger
} OPTIONAL, - Need ON
useT312-r12 BOOLEAN OPTIONAL, - Need ON usePSCell-r12 BOOLEAN OPTIONAL, - Need ON aN-Threshold1 -v1250 RSRQ-RangeConfig-r12
OPTIONAL, - Need ON
a5-Threshold2-v1250 RSRQ-RangeConfig-r12
OPTIONAL, - Need ON
reportStrongestCSI-RSs-r12 BOOLEAN OPTIONAL, - Need ON
reportCRS-Meas-r12 BOOLEAN OPTIONAL, - Need ON
triggerQuantityCSI-RS-r12 BOOLEAN OPTIONAL - Need ON
]],
[[ reportSSTD-Meas-r13 BOOLEAN OPTIONAL,
Need ON
rs-sinr-Config-r13 CHOICE {
release NULL, setup SEQUENCE {
triggerQuantity-v1310 ENUMERATED {sinr}
OPTIONAL, - Need ON
aN-Threshold1 -r13 RS-SINR-Range-r13 OPTIONAL,
- Need ON
a5-Threshold2-r13 RS-SINR-Range-r13 OPTIONAL,
- Need ON
reportQuantity-v1310 ENUMERATED {rsrpANDsinr, rsrqANDsinr, all}
}
} OPTIONAL, - Need ON useWhiteCellList-r13 BOOLEAN OPTIONAL,
- Need ON
measRSSI-ReportConfig-r13 MeasRSSI-ReportConfig-r13
OPTIONAL, - Need ON
includeMultiBandlnfo-r13 ENUMERATED {true} OPTIONAL,
- Cond reportCGI
ul-DelayConfig-r13 UL-DelayConfig-r13 OPTIONAL - Need ON
]],
[[ ue-RxTxTimeDiffPeriodicalTDD-r13 BOOLEAN OPTIONAL
- Need ON
]]
[[
purpose-v1430 ENUMERATED {reportLocation, sidelink, spare2, spare 1 }
OPTIONAL - Need ON
]]
[[
airborneStatus-r15 ENUMERATED {flying, terrestrial... } OPTIONAL
- Need ON
]]
RSRQ-RangeConfig-r12 CHOICE {
release NULL,
setup RSRQ-Range-v1250
ThresholdEUTRA ::= CHOICE{
threshold-RSRP RSRP-Range,
threshold-RSRQ RSRQ-Range
}
ThresholdEUTRA-v1250
Figure imgf000025_0001
CSI-RSRP-Range-r12
MeasRSSI-ReportConfig-r13 SEQUENCE { channelOccupancyThreshold-r13 RSSI-Range-r13 OPTIONAL --
Need OR
}
- ASN1STOP
Second change A)
5.5.6.X Airborne status detection
The UE shall determine the airborne status according to parameters within IE AirborneStatusParameters configured by E-UTRAN as follows:
The UE shall:
1 > perform airborne state detection using the AirborneStatusParameters.
2> if the number of cells detected by the UE exceeds airborne, airborne status flying is determined;
1 > else:
2> airborne status terrestrial is determined;
B)
- AirborneStatusParameters
The IE AirborneStatusParameters contains parameters to determine airborne status for the UE.
AirborneStatusParameters information element
- ASN1 START airborneStatusParameters ::= SEQUENCE {
airborne ENUMERATED {
n5, n7, n9, n11 , n13, n15, n20, spare3, spare2, sparel },
}
- ASN1STOP field descriptions
Figure imgf000027_0001
The threshold for evaluating criteria to enter airborne status flying. Value in number of cells detected, n5 corresponds to 5 cells and so on.
Figure imgf000027_0002
Third change
For all measurements, except for UE Rx-Tx time difference measurements,
Received Signal Strength Indicator (RSSI), UL Packet Data Convergence Protocol (PDCP) Packet Delay per Quality of Service Class Identifier (QCI) measurement, channel occupancy measurements, Constant Bit Rate (CBR) measurement, and except for
Wireless Local Area Network (WLAN) measurements of Band, Carrier Info, Available Admission Capacity, Backhaul Bandwidth, Channel Utilization, and Station Count, the UE applies the layer 3 filtering as specified in 5.5.3.2, before using the measured results for evaluation of reporting criteria or for measurement reporting. When performing
measurements on NR carriers, the UE derives the cell quality as specified in 5.5.3.3.
The UE shall:
1 >whenever the UE has a measConfig, perform Reference Signal Received Power (RSRP) and Reference Signal Received Quality (RSRQ) measurements for each serving cell as follows:
2>for the PCell, apply the time domain measurement resource restriction in
accordance with measSubframePaternPCell, if configured;
2>if the UE supports CRS based discovery signals measurement:
3>for each SCell in deactivated state, apply the discovery signals measurement timing configuration in accordance with measDS-Config, if configured within the measObject corresponding to the frequency of the SCell;
1 >if the UE has a measConfig with rs-sinr-Config configured, perform Reference Signal- Signal to Noise and Interference Ratio (RS-SINR) (as indicated in the associated reportConfig) measurements as follows: 2>perform the corresponding measurements on the frequency indicated in the associated measObject using available idle periods or using autonomous gaps as necessary;
1 >for each measld included in the measldList within VarMeasConfig.
2>if the purpose for the associated reportConfig is set to reportCGI:
3> if si-RequestForHO is configured for the associated reportConfig·.
4>perform the corresponding measurements on the frequency and Radio
Access Technology (RAT) indicated in the associated measObject using autonomous gaps as necessary;
3>else:
4>perform the corresponding measurements on the frequency and RAT
indicated in the associated measObject using available idle periods or using autonomous gaps as necessary;
If autonomous gaps are used to perform measurements, the UE is allowed to temporarily abort communication with all serving cell(s), i.e. , create autonomous gaps to perform the corresponding measurements within the limits specified in TS 36.133.
Otherwise, the UE only supports the measurements with the purpose set to reported only if E-UTRAN has provided sufficient idle periods.
3>try to acquire the global cell identity of the cell indicated by the
cellForWhichToReportCGI in the associated measObject by acquiring the relevant system information from the concerned cell;
3> if an entry in the cellAccessRelatedlnfoList includes the selected PLMN, acquire the relevant system information from the concerned cell;
3> if the cell indicated by the cellForWhichToReportCGI included in the associated measObject is an E-UTRAN cell:
4>try to acquire the Closed Subscriber Group (CSG) identity, if the CSG identity is broadcast in the concerned cell; 4>try to acquire the trackingAreaCode in the concerned cell;
4>try to acquire the list of additional PLMN Identities, as included in the plmn- IdentityList, if multiple PLMN identities are broadcast in the concerned cell;
4> if cellAccessRelatedlnfoList is included, use trackingAreaCode and plmn- IdentityList from the entry of cellAccessRelatedlnfoList containing the selected PLMN;
4> if the includeMultiBandlnfo is configured:
5>try to acquire the freqBandlndicator in the SystemlnformationBlockType 7 of the concerned cell;
5>try to acquire the list of additional frequency band indicators, as included in the multiBandlnfoList, if multiple frequency band indicators are included in the SystemlnformationBlockTypelof the concerned cell;
5>try to acquire the freqBandlndicatorPriority, if the freqBandlndicatorPriority is included in the SystemlnformationBlockTypelof the concerned cell;
NOTE 2: The 'primary' PLMN is part of the global cell identity.
3> if the cell indicated by the cellForWhichToReportCGI included in the associated measObject is a UTRAN cell:
4>try to acquire the Location Area Code (LAC), the Routing Area Code (RAC) and the list of additional PLMN Identities, if multiple PLMN identities are broadcast in the concerned cell;
4>try to acquire the CSG identity, if the CSG identity is broadcast in the
concerned cell;
3> if the cell indicated by the cellForWhichToReportCGI included in the associated measObject is a Global System for Mobile Communications Enhanced Data Rates for Global System for Mobile Communications Evolution Radio Access Network (GERAN) cell: 4>try to acquire the RAC in the concerned cell;
3> if the cell indicated by the cellForWhichToReportCGI included in the associated measObject is a Code Division Multiple Access (CDMA)2000 cell and the cdma2000-Type included in the measObject is typeHRPD.
4>try to acquire the Sector ID in the concerned cell;
3> if the cell indicated by the cellForWhichToReportCGI included in the associated measObject is a CDMA2000 cell and the cdma2000-Type included in the measObject is typeIXRTT
4>try to acquire the BASE ID, Shared Information Data (SID) and Namespace Identifier (NID) in the concerned cell;
2>if the ul-DelayConfig is configured for the associated reportConfig·.
3> ignore the measObject,
3>configure the PDCP layer to perform UL PDCP Packet Delay per QCI
measurement;
2> if the airborneStatus is configured for the associated reportConfig·.
3>perform airborne state detection using the airborne state detection as specified in 5.5.6.x;
3> if airborne state flying is detected and parameter airborneStatus is set false, or 3> if airborne state terrestrial is detected and parameter airborneStatus is set true 4> ignore the measObject,
2>else:
3> if a measurement gap configuration is setup; or
3> if the UE does not require measurement gaps to perform the concerned
measurements:
4> if s-Measure is not configured; or > if s-Measure is configured and the PCell RSRP, after layer 3 filtering, is lower than this value; or >if the associated measObject concerns NR; or > if measDS-Config is configured in the associated measObject:
5>if the UE supports CSI-RS based discovery signals measurement; and
5> if the eventld in the associated reportConfig is set to eventCI or eventC2, or if reportStrongestCSI-RSs is included in the associated reportConfig :
6>perform the corresponding measurements of CSI-RS resources on the frequency indicated in the concerned measObject, applying the discovery signals measurement timing configuration in accordance with measDS-Config in the concerned measObject,
6> if reportCRS-Meas is included in the associated reportConfig, perform the corresponding measurements of neighbouring cells on the frequencies indicated in the concerned measObject as follows:
7>for neighbouring cells on the primary frequency, apply the time domain measurement resource restriction in accordance with measSubframePatternConfigNeigh, if configured in the concerned measObject,
7>apply the discovery signals measurement timing configuration in accordance with measDS-Config in the concerned measObject,
5>else:
6>perform the corresponding measurements of neighbouring cells on the frequencies and RATs indicated in the concerned measObject as follows:
7>for neighbouring cells on the primary frequency, apply the time domain measurement resource restriction in accordance with measSubframePaternConfigNeigh, if configured in the concerned measObject,
7> if the UE supports CRS based discovery signals measurement, apply the discovery signals measurement timing configuration in
accordance with measDS-Config, if configured in the concerned measObject,
4> if the ue-RxTxTimeDiff Periodical is configured in the associated reportConfig·.
5>perform the UE Rx-Tx time difference measurements on the PCell;
4> if the reportSSTD-Meas is set to true or pSCell in the associated reportConfig·.
5>perform SSTD measurements between the PCell and the PSCell;
4> if the measRSSI-ReportConfig is configured in the associated reportConfig·.
5>perform the RSSI and channel occupancy measurements on the frequency indicated in the associated measObject,
2>perform the evaluation of reporting criteria as specified in 5.5.4;
Figure 7 is a schematic block diagram of the radio access node 700 according to some embodiments of the present disclosure. The radio access node 700 may be, for example, a base station 402 or 406. As illustrated, the radio access node 700 includes a control system 702 that includes one or more processors 704 (e.g., Central Processing Units (CPUs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), and/or the like), memory 706, and a network interface 708. The one or more processors 704 are also referred to herein as processing circuitry. In addition, the radio access node 700 includes one or more radio units 710 that each includes one or more transmitters 712 and one or more receivers 714 coupled to one or more antennas 716. The radio units 710 may be referred to or be part of radio interface circuitry. In some embodiments, the radio unit(s) 710 is external to the control system 702 and connected to the control system 702 via, e.g., a wired connection (e.g., an optical cable). Flowever, in some other embodiments, the radio unit(s) 710 and potentially the antenna(s) 716 are integrated together with the control system 702. The one or more processors 704 operate to provide one or more functions of a radio access node 700 as described herein. In some embodiments, the function(s) are implemented in software that is stored, e.g., in the memory 706 and executed by the one or more processors 704.
Figure 8 is a schematic block diagram that illustrates a virtualized embodiment of the radio access node 700 according to some embodiments of the present disclosure. This discussion is equally applicable to other types of network nodes. Further, other types of network nodes may have similar virtualized architectures.
As used herein, a“virtualized” radio access node is an implementation of the radio access node 700 in which at least a portion of the functionality of the radio access node 700 is implemented as a virtual component(s) (e.g., via a virtual machine(s) executing on a physical processing node(s) in a network(s)). As illustrated, in this example, the radio access node 700 includes the control system 702 that includes the one or more processors 704 (e.g., CPUs, ASICs, FPGAs, and/or the like), the memory 706, and the network interface 708 and the one or more radio units 710 that each includes the one or more transmitters 712 and the one or more receivers 714 coupled to the one or more antennas 716, as described above. The control system 702 is connected to the radio unit(s) 710 via, for example, an optical cable or the like. The control system 702 is connected to one or more processing nodes 800 coupled to or included as part of a network(s) 802 via the network interface 708. Each processing node 800 includes one or more processors 804 (e.g., CPUs, ASICs, FPGAs, and/or the like), memory 806, and a network interface 808.
In this example, functions 810 of the radio access node 700 described herein are implemented at the one or more processing nodes 800 or distributed across the control system 702 and the one or more processing nodes 800 in any desired manner. In some particular embodiments, some or all of the functions 810 of the radio access node 700 described herein are implemented as virtual components executed by one or more virtual machines implemented in a virtual environment(s) hosted by the processing node(s) 800. As will be appreciated by one of ordinary skill in the art, additional signaling or
communication between the processing node(s) 800 and the control system 702 is used in order to carry out at least some of the desired functions 810. Notably, in some
embodiments, the control system 702 may not be included, in which case the radio unit(s) 710 communicates directly with the processing node(s) 800 via an appropriate network interface(s).
In some embodiments, a computer program including instructions which, when executed by at least one processor, causes the at least one processor to carry out the functionality of radio access node 700 or a node (e.g., a processing node 800)
implementing one or more of the functions 810 of the radio access node 700 in a virtual environment according to any of the embodiments described herein is provided. In some embodiments, a carrier comprising the aforementioned computer program product is provided. The carrier is one of an electronic signal, an optical signal, a radio signal, or a computer readable storage medium (e.g., a non-transitory computer readable medium such as memory).
Figure 9 is a schematic block diagram of the radio access node 700 according to some other embodiments of the present disclosure. The radio access node 700 includes one or more modules 900, each of which is implemented in software. The module(s) 900 provide the functionality of the radio access node 700 described herein. This discussion is equally applicable to the processing node 800 of Figure 8 where the modules 900 may be implemented at one of the processing nodes 800 or distributed across multiple processing nodes 800 and/or distributed across the processing node(s) 800 and the control system 702.
Figure 10 is a schematic block diagram of a UE 1000 according to some
embodiments of the present disclosure. As illustrated, the UE 1000 includes one or more processors 1002 (e.g., CPUs, ASICs, FPGAs, and/or the like), memory 1004, and one or more transceivers 1006 each including one or more transmitters 1008 and one or more receivers 1010 coupled to one or more antennas 1012. The processors 1002 are also referred to herein as processing circuitry. The transceivers 1006 are also referred to herein as radio circuitry. In some embodiments, the functionality of the UE 1000 described above may be fully or partially implemented in software that is, e.g., stored in the memory 1004 and executed by the processor(s) 1002. Note that the UE 1000 may include additional components not illustrated in Figure 10 such as, e.g., one or more user interface
components (e.g., a display, buttons, a touch screen, a microphone, a speaker(s), and/or the like), a power supply (e.g., a battery and associated power circuitry), etc. In some embodiments, a computer program including instructions which, when executed by at least one processor, causes the at least one processor to carry out the functionality of the UE 1000 according to any of the embodiments described herein is provided. In some embodiments, a carrier comprising the aforementioned computer program product is provided. The carrier is one of an electronic signal, an optical signal, a radio signal, or a computer readable storage medium (e.g., a non-transitory computer readable medium such as memory).
Figure 11 is a schematic block diagram of the UE 1000 according to some other embodiments of the present disclosure. The UE 1000 includes one or more modules 1100, each of which is implemented in software. The module(s) 1100 provide the functionality of the UE 1000 described herein.
With reference to Figure 12, in accordance with an embodiment, a communication system includes a telecommunication network 1200, such as a 3GPP-type cellular network, which comprises an access network 1202, such as a Radio Access Network (RAN), and a core network 1204. The access network 1202 comprises a plurality of base stations 1206A, 1206B, 1206C, such as NBs, eNBs, gNBs, or other types of wireless Access Points (APs), each defining a corresponding coverage area 1208A, 1208B, 1208C. Each base station 1206A, 1206B, 1206C is connectable to the core network 1204 over a wired or wireless connection 1210. A first UE 1212 located in coverage area 1208C is configured to wirelessly connect to, or be paged by, the corresponding base station 1206C. A second UE 1214 in coverage area 1208A is wirelessly connectable to the corresponding base station 1206A. While a plurality of UEs 1212, 1214 are illustrated in this example, the disclosed embodiments are equally applicable to a situation where a sole UE is in the coverage area or where a sole UE is connecting to the corresponding base station 1206.
The telecommunication network 1200 is itself connected to a host computer 1216, which may be embodied in the hardware and/or software of a standalone server, a cloud- implemented server, a distributed server, or as processing resources in a server farm. The host computer 1216 may be under the ownership or control of a service provider, or may be operated by the service provider or on behalf of the service provider. Connections 1218 and 1220 between the telecommunication network 1200 and the host computer 1216 may extend directly from the core network 1204 to the host computer 1216 or may go via an optional intermediate network 1222. The intermediate network 1222 may be one of, or a combination of more than one of, a public, private, or hosted network; the intermediate network 1222, if any, may be a backbone network or the Internet; in particular, the intermediate network 1222 may comprise two or more sub-networks (not shown).
The communication system of Figure 12 as a whole enables connectivity between the connected UEs 1212, 1214 and the host computer 1216. The connectivity may be described as an Over-the-Top (OTT) connection 1224. The host computer 1216 and the connected UEs 1212, 1214 are configured to communicate data and/or signaling via the OTT connection 1224, using the access network 1202, the core network 1204, any intermediate network 1222, and possible further infrastructure (not shown) as
intermediaries. The OTT connection 1224 may be transparent in the sense that the participating communication devices through which the OTT connection 1224 passes are unaware of routing of uplink and downlink communications. For example, the base station 1206 may not or need not be informed about the past routing of an incoming downlink communication with data originating from the host computer 1216 to be forwarded (e.g., handed over) to a connected UE 1212. Similarly, the base station 1206 need not be aware of the future routing of an outgoing uplink communication originating from the UE 1212 towards the host computer 1216.
Example implementations, in accordance with an embodiment, of the UE, base station, and host computer discussed in the preceding paragraphs will now be described with reference to Figure 13. In a communication system 1300, a host computer 1302 comprises hardware 1304 including a communication interface 1306 configured to set up and maintain a wired or wireless connection with an interface of a different communication device of the communication system 1300. The host computer 1302 further comprises processing circuitry 1308, which may have storage and/or processing capabilities. In particular, the processing circuitry 1308 may comprise one or more programmable processors, ASICs, FPGAs, or combinations of these (not shown) adapted to execute instructions. The host computer 1302 further comprises software 1310, which is stored in or accessible by the host computer 1302 and executable by the processing circuitry 1308. The software 1310 includes a host application 1312. The host application 1312 may be operable to provide a service to a remote user, such as a UE 1314 connecting via an OTT connection 1316 terminating at the UE 1314 and the host computer 1302. In providing the service to the remote user, the host application 1312 may provide user data which is transmitted using the OTT connection 1316.
The communication system 1300 further includes a base station 1318 provided in a telecommunication system and comprising hardware 1320 enabling it to communicate with the host computer 1302 and with the UE 1314. The hardware 1320 may include a communication interface 1322 for setting up and maintaining a wired or wireless connection with an interface of a different communication device of the communication system 1300, as well as a radio interface 1324 for setting up and maintaining at least a wireless connection 1326 with the UE 1314 located in a coverage area (not shown in Figure 13) served by the base station 1318. The communication interface 1322 may be configured to facilitate a connection 1328 to the host computer 1302. The connection 1328 may be direct or it may pass through a core network (not shown in Figure 13) of the telecommunication system and/or through one or more intermediate networks outside the telecommunication system. In the embodiment shown, the hardware 1320 of the base station 1318 further includes processing circuitry 1330, which may comprise one or more programmable processors, ASICs, FPGAs, or combinations of these (not shown) adapted to execute instructions. The base station 1318 further has software 1332 stored internally or accessible via an external connection.
The communication system 1300 further includes the UE 1314 already referred to. The UE’s 1314 hardware 1334 may include a radio interface 1336 configured to set up and maintain a wireless connection 1326 with a base station serving a coverage area in which the UE 1314 is currently located. The hardware 1334 of the UE 1314 further includes processing circuitry 1338, which may comprise one or more programmable processors, ASICs, FPGAs, or combinations of these (not shown) adapted to execute instructions. The UE 1314 further comprises software 1340, which is stored in or accessible by the UE 1314 and executable by the processing circuitry 1338. The software 1340 includes a client application 1342. The client application 1342 may be operable to provide a service to a human or non-human user via the UE 1314, with the support of the host computer 1302. In the host computer 1302, the executing host application 1312 may communicate with the executing client application 1342 via the OTT connection 1316 terminating at the UE 1314 and the host computer 1302. In providing the service to the user, the client application 1342 may receive request data from the host application 1312 and provide user data in response to the request data. The OTT connection 1316 may transfer both the request data and the user data. The client application 1342 may interact with the user to generate the user data that it provides.
It is noted that the host computer 1302, the base station 1318, and the UE 1314 illustrated in Figure 13 may be similar or identical to the host computer 1216, one of the base stations 1206A, 1206B, 1206C, and one of the UEs 1212, 1214 of Figure 12, respectively. This is to say, the inner workings of these entities may be as shown in Figure 13 and independently, the surrounding network topology may be that of Figure 12.
In Figure 13, the OTT connection 1316 has been drawn abstractly to illustrate the communication between the host computer 1302 and the UE 1314 via the base station 1318 without explicit reference to any intermediary devices and the precise routing of messages via these devices. The network infrastructure may determine the routing, which may be configured to hide from the UE 1314 or from the service provider operating the host computer 1302, or both. While the OTT connection 1316 is active, the network
infrastructure may further take decisions by which it dynamically changes the routing (e.g., on the basis of load balancing consideration or reconfiguration of the network).
The wireless connection 1326 between the UE 1314 and the base station 1318 is in accordance with the teachings of the embodiments described throughout this disclosure. One or more of the various embodiments improve the performance of OTT services provided to the UE 1314 using the OTT connection 1316, in which the wireless connection 1326 forms the last segment. More precisely, the teachings of these embodiments may improve the interference caused by and received by UE 1314 and thereby provide benefits such as: e.g., reduced user waiting time, relaxed restriction on file size, better
responsiveness, extended battery lifetime.
A measurement procedure may be provided for the purpose of monitoring data rate, latency, and other factors on which the one or more embodiments improve. There may further be an optional network functionality for reconfiguring the OTT connection 1316 between the host computer 1302 and the UE 1314, in response to variations in the measurement results. The measurement procedure and/or the network functionality for reconfiguring the OTT connection 1316 may be implemented in the software 1310 and the hardware 1304 of the host computer 1302 or in the software 1340 and the hardware 1334 of the UE 1314, or both. In some embodiments, sensors (not shown) may be deployed in or in association with communication devices through which the OTT connection 1316 passes; the sensors may participate in the measurement procedure by supplying values of the monitored quantities exemplified above, or supplying values of other physical quantities from which the software 1310, 1340 may compute or estimate the monitored quantities.
The reconfiguring of the OTT connection 1316 may include message format,
retransmission settings, preferred routing, etc.; the reconfiguring need not affect the base station 1318, and it may be unknown or imperceptible to the base station 1318. Such procedures and functionalities may be known and practiced in the art. In certain
embodiments, measurements may involve proprietary UE signaling facilitating the host computer 1302’s measurements of throughput, propagation times, latency, and the like.
The measurements may be implemented in that the software 1310 and 1340 causes messages to be transmitted, in particular empty or‘dummy’ messages, using the OTT connection 1316 while it monitors propagation times, errors, etc.
Figure 14 is a flowchart illustrating a method implemented in a communication system, in accordance with one embodiment. The communication system includes a host computer, a base station, and a UE which may be those described with reference to Figures 12 and 13. For simplicity of the present disclosure, only drawing references to Figure 14 will be included in this section. In step 1400, the host computer provides user data. In sub-step 1402 (which may be optional) of step 1400, the host computer provides the user data by executing a host application. In step 1404, the host computer initiates a transmission carrying the user data to the UE. In step 1406 (which may be optional), the base station transmits to the UE the user data which was carried in the transmission that the host computer initiated, in accordance with the teachings of the embodiments described throughout this disclosure. In step 1408 (which may also be optional), the UE executes a client application associated with the host application executed by the host computer.
Figure 15 is a flowchart illustrating a method implemented in a communication system, in accordance with one embodiment. The communication system includes a host computer, a base station, and a UE which may be those described with reference to Figures 12 and 13. For simplicity of the present disclosure, only drawing references to Figure 15 will be included in this section. In step 1500 of the method, the host computer provides user data. In an optional sub-step (not shown) the host computer provides the user data by executing a host application. In step 1502, the host computer initiates a transmission carrying the user data to the UE. The transmission may pass via the base station, in accordance with the teachings of the embodiments described throughout this disclosure. In step 1504 (which may be optional), the UE receives the user data carried in the transmission.
Figure 16 is a flowchart illustrating a method implemented in a communication system, in accordance with one embodiment. The communication system includes a host computer, a base station, and a UE which may be those described with reference to Figures 12 and 13. For simplicity of the present disclosure, only drawing references to Figure 16 will be included in this section. In step 1600 (which may be optional), the UE receives input data provided by the host computer. Additionally or alternatively, in step 1602, the UE provides user data. In sub-step 1604 (which may be optional) of step 1600, the UE provides the user data by executing a client application. In sub-step 1606 (which may be optional) of step 1602, the UE executes a client application which provides the user data in reaction to the received input data provided by the host computer. In providing the user data, the executed client application may further consider user input received from the user. Regardless of the specific manner in which the user data was provided, the UE initiates, in sub-step 1608 (which may be optional), transmission of the user data to the host computer. In step 1610 of the method, the host computer receives the user data transmitted from the UE, in accordance with the teachings of the embodiments described throughout this disclosure.
Figure 17 is a flowchart illustrating a method implemented in a communication system, in accordance with one embodiment. The communication system includes a host computer, a base station, and a UE which may be those described with reference to Figures 12 and 13. For simplicity of the present disclosure, only drawing references to Figure 17 will be included in this section. In step 1700 (which may be optional), in accordance with the teachings of the embodiments described throughout this disclosure, the base station receives user data from the UE. In step 1702 (which may be optional), the base station initiates transmission of the received user data to the host computer. In step 1704 (which may be optional), the host computer receives the user data carried in the transmission initiated by the base station.
Any appropriate steps, methods, features, functions, or benefits disclosed herein may be performed through one or more functional units or modules of one or more virtual apparatuses. Each virtual apparatus may comprise a number of these functional units. These functional units may be implemented via processing circuitry, which may include one or more microprocessor or microcontrollers, as well as other digital hardware, which may include Digital Signal Processor (DSPs), special-purpose digital logic, and the like. The processing circuitry may be configured to execute program code stored in memory, which may include one or several types of memory such as Read Only Memory (ROM), Random Access Memory (RAM), cache memory, flash memory devices, optical storage devices, etc. Program code stored in memory includes program instructions for executing one or more telecommunications and/or data communications protocols as well as instructions for carrying out one or more of the techniques described herein. In some implementations, the processing circuitry may be used to cause the respective functional unit to perform corresponding functions according one or more embodiments of the present disclosure.
While processes in the figures may show a particular order of operations performed by certain embodiments of the present disclosure, it should be understood that such order is exemplary (e.g., alternative embodiments may perform the operations in a different order, combine certain operations, overlap certain operations, etc.).
Embodiments
Group A Embodiments
1. A method performed by a wireless device for adjusting parameters based on a height of the wireless device, the method comprising:
- receiving (500) at least one measurement configuration with at least one height- dependent criteria;
- determining (502) a height-related parameter of the wireless device; and
- if the height-related parameter of the wireless device satisfies the at least one height-dependent criteria, performing (504) a measurement according to the at least one measurement configuration.
2. The method of embodiment 1 wherein the height-related criteria parameter comprises a binary indication of height. 3. The method of embodiment 2 wherein the height-related criteria parameter comprises an indication of“airborne” or“not airborne”.
4. The method of embodiment 1 wherein the height-related criteria parameter can comprise more than two indications of height.
5. The method of embodiment 2 wherein the height-related criteria parameter can comprise one of the group consisting of: High-Altitude, Mid-Altitude, and Normal-Altitude.
6. The method of any of the previous embodiments wherein receiving the at least one measurement configuration with the at least one height-dependent criteria comprises receiving a reportconfiguration for a measID that includes the at least one height- dependent criteria.
7. The method of any of the previous embodiments wherein receiving the at least one measurement configuration comprises receiving a measurement configuration for at least one of the group consisting of: a timeToTrigger parameter, a maxReportCells parameter, a reportlnterval parameter, a reportAmount parameter, and an includeLocationlnfo parameter.
8. The method of any of the previous embodiments wherein determining the height- related parameter of the wireless device comprises receiving the height-related parameter from a network node such as a base station.
9. The method of any of the previous embodiments wherein determining the height- related parameter of the wireless device comprises determining the height-related parameter at the wireless device.
10. The method of embodiment 9 wherein determining the height-related parameter at the wireless device comprises determining the height-related parameter based on a number of cells or beams detected. 11. The method of any of the previous embodiments, further comprising:
- providing user data; and
- forwarding the user data to a host computer via the transmission to the base station.
Figure imgf000043_0001
12. A method performed by a base station for adjusting parameters based on a height of a wireless device, the method comprising:
- transmitting (600) to the wireless device at least one measurement configuration with at least one height-dependent criteria; and
- if the height-related parameter of the wireless device satisfies the at least one height-dependent criteria, receiving (604) a measurement according to the at least one measurement configuration.
13. The method of embodiment 12, further comprising:
- determining (602) a height-related parameter of the wireless device.
14. The method of any of the previous embodiments wherein the height-related criteria parameter comprises a binary indication of height.
15. The method of embodiment 14 wherein the height-related criteria parameter comprises an indication of“airborne” or“not airborne”.
16. The method of any of the previous embodiments wherein the height-related criteria parameter can comprise more than two indications of height.
17. The method of embodiment 16 wherein the height-related criteria parameter can comprise one of the group consisting of: High-Altitude, Mid-Altitude, and Normal-Altitude.
18. The method of any of the previous embodiments wherein transmitting the at least one measurement configuration with the at least one height-dependent criteria comprises transmitting a reportconfiguration for a measID that includes the at least one height- dependent criteria.
19. The method of any of the previous embodiments wherein transmitting the at least one measurement configuration comprises transmitting a measurement configuration for at least one of the group consisting of: a timeToTrigger parameter, a maxReportCells parameter, a reportlnterval parameter, a reportAmount parameter, and an
includeLocationlnfo parameter.
20. The method of any of the previous embodiments, further comprising:
- obtaining user data; and
- forwarding the user data to a host computer or a wireless device.
Figure imgf000044_0001
21. A wireless device for adjusting parameters based on a height of the wireless device, the wireless device comprising:
- processing circuitry configured to perform any of the steps of any of the Group A embodiments; and
- power supply circuitry configured to supply power to the wireless device.
22. A base station for adjusting parameters based on a height of a wireless device, the base station comprising:
- processing circuitry configured to perform any of the steps of any of the Group B embodiments; and
- power supply circuitry configured to supply power to the base station.
23. A User Equipment, UE, for adjusting parameters based on a height of the UE, the UE comprising:
- an antenna configured to send and receive wireless signals;
- radio front-end circuitry connected to the antenna and to processing circuitry, and configured to condition signals communicated between the antenna and the processing circuitry; - the processing circuitry being configured to perform any of the steps of any of the Group A embodiments;
- an input interface connected to the processing circuitry and configured to allow input of information into the UE to be processed by the processing circuitry;
- an output interface connected to the processing circuitry and configured to output information from the UE that has been processed by the processing circuitry; and
- a battery connected to the processing circuitry and configured to supply power to the UE.
24. A communication system including a host computer comprising:
- processing circuitry configured to provide user data; and
- a communication interface configured to forward the user data to a cellular
network for transmission to a User Equipment, UE;
- wherein the cellular network comprises a base station having a radio interface and processing circuitry, the base station’s processing circuitry configured to perform any of the steps of any of the Group B embodiments.
25. The communication system of the previous embodiment further including the base station.
26. The communication system of the previous 2 embodiments, further including the UE, wherein the UE is configured to communicate with the base station.
27. The communication system of the previous 3 embodiments, wherein:
- the processing circuitry of the host computer is configured to execute a host
application, thereby providing the user data; and
- the UE comprises processing circuitry configured to execute a client application associated with the host application.
28. A method implemented in a communication system including a host computer, a base station, and a User Equipment, UE, the method comprising:
- at the host computer, providing user data; and - at the host computer, initiating a transmission carrying the user data to the UE via a cellular network comprising the base station, wherein the base station performs any of the steps of any of the Group B embodiments.
29. The method of the previous embodiment, further comprising, at the base station, transmitting the user data.
30. The method of the previous 2 embodiments, wherein the user data is provided at the host computer by executing a host application, the method further comprising, at the UE, executing a client application associated with the host application.
31. A User Equipment, UE, configured to communicate with a base station, the UE comprising a radio interface and processing circuitry configured to perform the method of the previous 3 embodiments.
32. A communication system including a host computer comprising:
- processing circuitry configured to provide user data; and
- a communication interface configured to forward user data to a cellular network for transmission to a User Equipment, UE;
- wherein the UE comprises a radio interface and processing circuitry, the UE’s components configured to perform any of the steps of any of the Group A embodiments.
33. The communication system of the previous embodiment, wherein the cellular network further includes a base station configured to communicate with the UE.
34. The communication system of the previous 2 embodiments, wherein:
- the processing circuitry of the host computer is configured to execute a host application, thereby providing the user data; and
- the UE’s processing circuitry is configured to execute a client application
associated with the host application. 35. A method implemented in a communication system including a host computer, a base station, and a User Equipment, UE, the method comprising:
- at the host computer, providing user data; and
- at the host computer, initiating a transmission carrying the user data to the UE via a cellular network comprising the base station, wherein the UE performs any of the steps of any of the Group A embodiments.
36. The method of the previous embodiment, further comprising at the UE, receiving the user data from the base station.
37. A communication system including a host computer comprising:
- communication interface configured to receive user data originating from a
transmission from a User Equipment, UE, to a base station;
- wherein the UE comprises a radio interface and processing circuitry, the UE’s processing circuitry configured to perform any of the steps of any of the Group A embodiments.
38. The communication system of the previous embodiment, further including the UE.
39. The communication system of the previous 2 embodiments, further including the base station, wherein the base station comprises a radio interface configured to
communicate with the UE and a communication interface configured to forward to the host computer the user data carried by a transmission from the UE to the base station.
40. The communication system of the previous 3 embodiments, wherein:
- the processing circuitry of the host computer is configured to execute a host application; and
- the UE’s processing circuitry is configured to execute a client application
associated with the host application, thereby providing the user data.
41. The communication system of the previous 4 embodiments, wherein: - the processing circuitry of the host computer is configured to execute a host application, thereby providing request data; and
- the UE’s processing circuitry is configured to execute a client application
associated with the host application, thereby providing the user data in response to the request data.
42. A method implemented in a communication system including a host computer, a base station, and a User Equipment, UE, the method comprising:
- at the host computer, receiving user data transmitted to the base station from the UE, wherein the UE performs any of the steps of any of the Group A
embodiments.
43. The method of the previous embodiment, further comprising, at the UE, providing the user data to the base station.
44. The method of the previous 2 embodiments, further comprising:
- at the UE, executing a client application, thereby providing the user data to be transmitted; and
- at the host computer, executing a host application associated with the client application.
45. The method of the previous 3 embodiments, further comprising:
- at the UE, executing a client application; and
- at the UE, receiving input data to the client application, the input data being
provided at the host computer by executing a host application associated with the client application;
- wherein the user data to be transmitted is provided by the client application in response to the input data.
46. A communication system including a host computer comprising a communication interface configured to receive user data originating from a transmission from a User Equipment, UE, to a base station, wherein the base station comprises a radio interface and processing circuitry, the base station’s processing circuitry configured to perform any of the steps of any of the Group B embodiments.
47. The communication system of the previous embodiment further including the base station.
48. The communication system of the previous 2 embodiments, further including the UE, wherein the UE is configured to communicate with the base station.
49. The communication system of the previous 3 embodiments, wherein:
- the processing circuitry of the host computer is configured to execute a host
application; and
- the UE is configured to execute a client application associated with the host
application, thereby providing the user data to be received by the host computer.
50. A method implemented in a communication system including a host computer, a base station, and a User Equipment, UE, the method comprising:
- at the host computer, receiving, from the base station, user data originating from a transmission which the base station has received from the UE, wherein the UE performs any of the steps of any of the Group A embodiments.
51. The method of the previous embodiment, further comprising at the base station, receiving the user data from the UE.
52. The method of the previous 2 embodiments, further comprising at the base station, initiating a transmission of the received user data to the host computer.
At least some of the following abbreviations may be used in this disclosure. If there is an inconsistency between abbreviations, preference should be given to how it is used above. If listed multiple times below, the first listing should be preferred over any
subsequent listing(s).
• 3GPP Third Generation Partnership Project • 5G Fifth Generation
• AP Access Point
• ASIC Application Specific Integrated Circuit
• BS Base Station
• CBR Constant Bit Rate
• CDMA Code Division Multiple Access
• CPU Central Processing Unit
• CRS Cell Specific Reference Signal
• CSG Closed Subscriber Group
• DL Downlink
• DSP Digital Signal Processor
• eNB Evolved Node B
• E-UTRAN Evolved Universal Terrestrial Radio Access Network
• FPGA Field Programmable Gate Array
• GERAN Global System for Mobile Communications Enhanced Data
Rates for Global System for Mobile Communications Evolution Radio Access Network
. gNB New Radio Base Station
• HO Flandover
• IE Information Element
• loT Internet of Things
• LAC Location Area Code
• LoS Line-of-Sight
• LTE Long-Term Evolution
• MME Mobility Management Entity
• MO Measurement Object
• NID Namespace Identifier
• NR New Radio
• OTT Over-the-Top
• PBCH Physical Broadcast Channel
• PCI Physical Cell Identity PDCP Packet Data Convergence Protocol
P-GW Packet Gateway
PLMN Public Land Mobile Network
PRACH Physical Random Access Channel
PSS Primary Synchronization Signal
QCI Quality of Service Class Identifier
RAC Routing Area Code
RAM Random Access Memory
RAN Radio Access Network
RAT Radio Access Technology
ROM Read Only Memory
RRH Remote Radio Head
RRM Radio Resource Management
RSRP Reference Signal Received Power
RLF Radio Link Failure
RSRQ Reference Signal Received Quality
RSSI Received Signal Strength Indicator
RS-SINR Reference Signal-Signal to Noise and Interference Ratio
SCEF Service Capability Exposure Function
SI Study Item
SID Shared Information Data
SINR Signal-to-lnterference-plus-Noise Ratio
SIR Signal to Interference Ratio
SSB Synchronization Signal Block
SSS Secondary Synchronization Signal
Figure imgf000051_0001
Time to Trigger
UAV Unmanned Aerial Vehicle
UE User Equipment
UL Uplink
UMTS Universal Mobile Telecommunications System
Wl Work Item • WLAN Wireless Local Area Network
Those skilled in the art will recognize improvements and modifications to the embodiments of the present disclosure. All such improvements and modifications are considered within the scope of the concepts disclosed herein.

Claims

Claims What is claimed is:
1 . A method performed by a wireless device (1000) for adjusting parameters based on an airborne status of the wireless device (1000), the method comprising:
receiving (500) at least one measurement or reporting configuration with at least one airborne status criterion;
determining (502) the airborne status of the wireless device (1000); and
if the airborne status of the wireless device satisfies the at least one airborne status criterion, performing (504) a measurement or reporting according to the at least one measurement or reporting configuration.
2. The method of claim 1 wherein determining the airborne status of the wireless device (1000) comprises determining a binary indication of airborne status.
3. The method of claim 2 wherein the airborne status of the wireless device (1000) comprises an indication of“airborne” or“not airborne”.
4. The method of any of claims 1 through 3 wherein determining the airborne status of the wireless device (1000) comprises determining the airborne status of the wireless device (1000) based on at least one of the group consisting of: a height-related parameter of the wireless device (1000), a number of cells the wireless device (1000) sees, and a number of beams the wireless device (1000) sees.
5. The method of claim 4 wherein determining the airborne status of the wireless device (1000) comprises determining the airborne status of the wireless device (1000) based on the height-related parameter of the wireless device (1000) which can comprise more than two indications of height.
6. The method of claim 5 wherein the height-related parameter of the wireless device (1000) comprises one of the group consisting of: High-Altitude, Mid-Altitude, and Normal- Altitude.
7. The method of claim 4 wherein determining the airborne status of the wireless device (1000) comprises determining the airborne status of the wireless device (1000) based on the number of cells the wireless device (1000) sees.
8. The method of claim 7 wherein the number of cells the wireless device (1000) sees is based on a number of reference signals the wireless device (1000) sees from different cells.
9. The method of claim 8 wherein each of the reference signals is one of the group consisting of: a primary synchronization signal, PSS, a secondary synchronization signal, SSS, a cell specific reference signal, CRS, and a synchronization signal block, SSB.
10. The method of any of claims 1 to 9 wherein receiving the at least one measurement or reporting configuration comprises receiving a reportconfiguration for a measID that includes the at least one airborne status criterion.
11. The method of claim 10 further comprising, prior to performing the measurement or reporting, determining that the airborne status of the wireless device (1000) matches the at least one airborne status criterion of the reportconfiguration.
12. The method of claim 10 further comprising:
determining that the airborne status of the wireless device (1000) does not match the at least one airborne status criterion of the reportconfiguration·, and
in response to determining that the airborne status of the wireless device (1000) does not match, ignoring a measurement object linked to the reportconfiguration.
13. The method of any of claims 1 to 12 wherein receiving the at least one measurement or reporting configuration comprises receiving a configuration for at least one of the group consisting of: a timeToTrigger parameter, a maxReportCells parameter, a reportlnterval parameter, a reportAmount parameter, and an includeLocationlnfo parameter.
14. The method of any of claims 1 to 13 wherein determining the airborne status of the wireless device (1000) comprises receiving the airborne status of the wireless device (1000) from a network node such as a radio access node (700).
15. The method of any of claims 1 to 13 wherein determining the airborne status of the wireless device (1000) comprises determining the airborne status of the wireless device (1000) at the wireless device (1000).
16. A wireless device (1000) comprising:
one or more transceivers (1006);
one or more processors (1002); and
memory (1004) comprising instructions executable by the one or more processors (1002) whereby the wireless device (1000) is operable to:
receive at least one measurement or reporting configuration with at least one airborne status criterion;
determine an airborne status of the wireless device (1000); and if the airborne status of the wireless device (1000) satisfies the at least one airborne status criterion, perform a measurement or reporting according to the at least one measurement or reporting configuration.
17. The wireless device (1000) of claim 16 wherein determining the airborne status of the wireless device (1000) comprises being operable to determine a binary indication of airborne status.
18. The wireless device (1000) of claim 17 wherein the airborne status of the wireless device (1000) comprises an indication of“airborne” or“not airborne”.
19. The wireless device (1000) of any of claims 16 through 18 wherein determining the airborne status of the wireless device (1000) comprises being operable to determine the airborne status of the wireless device (1000) based on at least one of the group consisting of: a height-related parameter of the wireless device (1000), a number of cells the wireless device (1000) sees, and a number of beams the wireless device (1000) sees.
20. The wireless device (1000) of claim 19 wherein determining the airborne status of the wireless device (1000) comprises being operable to determine the airborne status of the wireless device (1000) based on the height-related parameter of the wireless device (1000) which can comprise more than two indications of height.
21. The wireless device (1000) of claim 20 wherein the height-related parameter of the wireless device (1000) comprises one of the group consisting of: High-Altitude, Mid- Altitude, and Normal-Altitude.
22. The wireless device (1000) of claim 19 wherein determining the airborne status of the wireless device (1000) comprises being operable to determine the airborne status of the wireless device (1000) based on the number of cells the wireless device (1000) sees.
23. The wireless device (1000) of claim 22 wherein the number of cells the wireless device (1000) sees is based on a number of reference signals the wireless device (1000) sees from different cells.
24. The wireless device (1000) of claim 23 wherein each of the reference signals is one of the group consisting of: a primary synchronization signal, PSS, a secondary
synchronization signal, SSS, a cell specific reference signal, CRS, and a synchronization signal block, SSB.
25. The wireless device (1000) of any of claims 16 to 24 wherein receiving the at least one measurement or reporting configuration comprises being operable to receive a reportconfiguration for a measID that includes the at least one airborne status criterion.
26. The wireless device (1000) of claim 25 further operable to, prior to performing the measurement or reporting, determine that the airborne status of the wireless device (1000) matches the at least one airborne status criterion of the reportconfiguration.
27. The wireless device (1000) of claim 25 further operable to: determine that the airborne status of the wireless device (1000) does not match the at least one airborne status criterion of the reportconfiguratiorr, and
in response to determining that the airborne status of the wireless device (1000) does not match, ignore a measurement object linked to the reportconfiguration.
28. The wireless device (1000) of any of claims 16 to 27 wherein receiving the at least one measurement or reporting configuration comprises being operable to receive a configuration for at least one of the group consisting of: a timeToTrigger parameter, a maxReportCells parameter, a reportlnterval parameter, a reportAmount parameter, and an includeLocationlnfo parameter.
29. The wireless device (1000) of any of claims 16 to 28 wherein determining the airborne status of the wireless device (1000) comprises being operable to receive the airborne status of the wireless device (1000) from a network node such as a radio access node (700).
30. The wireless device (1000) of any of claims 16 to 28 wherein determining the airborne status of the wireless device (1000) comprises being operable to determine the airborne status of the wireless device (1000) at the wireless device (1000).
31. A method performed by a radio access node (700) for adjusting parameters based on an airborne status of a wireless device (1000), the method comprising:
transmitting (600), to the wireless device (1000) at least one measurement or reporting configuration with at least one airborne status criterion;
determining (602) the airborne status of the wireless device (1000); and
if the airborne status of the wireless device (1000) satisfies the at least one airborne status criterion, receiving (604) a measurement or report according to the at least one measurement or reporting configuration.
32. The method of claim 31 wherein determining the airborne status of the wireless device (1000) comprises determining a binary indication of airborne status.
33. The method of claim 32 wherein the airborne status of the wireless device (1000) comprises an indication of“airborne” or“not airborne”.
34. The method of any of claims 31 through 33 wherein determining the airborne status of the wireless device (1000) comprises determining the airborne status of the wireless device (1000) based on at least one of the group consisting of: a height-related parameter of the wireless device (1000), a number of cells the wireless device (1000) sees, and a number of beams the wireless device (1000) sees.
35. The method of claim 34 wherein determining the airborne status of the wireless device (1000) comprises determining the airborne status of the wireless device (1000) based on the height-related parameter of the wireless device (1000) which can comprise more than two indications of height.
36. The method of claim 35 wherein the height-related parameter of the wireless device (1000) comprises one of the group consisting of: High-Altitude, Mid-Altitude, and Normal- Altitude.
37. The method of claim 34 wherein determining the airborne status of the wireless device (1000) comprises determining the airborne status of the wireless device (1000) based on the number of cells the wireless device (1000) sees.
38. The method of claim 37 wherein the number of cells the wireless device (1000) sees is based on a number of reference signals the wireless device (1000) sees from different cells.
39. The method of claim 38 wherein each of the reference signals are one of the group consisting of: a primary synchronization signal, PSS, a secondary synchronization signal, SSS, a cell specific reference signal, CRS, and a synchronization signal block, SSB.
40. The method of any of claims 31 to 39 wherein transmitting the at least one measurement or reporting configuration comprises transmitting a reportconfiguration for a measID that includes the at least one airborne status criterion.
41. The method of any of claims 31 to 40 wherein transmitting the at least one measurement or reporting configuration comprises transmitting a configuration for at least one of the group consisting of: a timeToTrigger parameter, a maxReportCells parameter, a reportlnterval parameter, a reportAmount parameter, and an includeLocationlnfo
parameter.
42. The method of any of claims 31 to 41 wherein determining the airborne status of the wireless device (1000) comprises receiving the airborne status of the wireless device (1000) from the wireless device (1000).
43. The method of any of claims 31 to 41 wherein determining the airborne status of the wireless device (1000) comprises determining the airborne status of the wireless device (1000) at the radio access node (700).
44. A radio access node (700) comprising:
one or more network interfaces (708);
one or more processors (704); and
memory (706) comprising instructions executable by the one or more processors (704) whereby the radio access node (700) is operable to:
transmit, to the wireless device (1000), at least one measurement or reporting configuration with at least one airborne status criterion;
determine an airborne status of the wireless device (1000); and if the airborne status of the wireless device (1000) satisfies the at least one airborne status criterion, receive a measurement or report according to the at least one measurement or reporting configuration.
45. The radio access node (700) of claim 44 wherein determining the airborne status of the wireless device (1000) comprises being operable to determine a binary indication of airborne status.
46. The radio access node (700) of claim 45 wherein the airborne status of the wireless device (1000) comprises an indication of“airborne” or“not airborne”.
47. The radio access node (700) of any of claims 44 through 46 wherein determining the airborne status of the wireless device (1000) comprises being operable to determine the airborne status of the wireless device (1000) based on at least one of the group consisting of: a height-related parameter of the wireless device (1000), a number of cells the wireless device (1000) sees, and a number of beams the wireless device (1000) sees.
48. The radio access node (700) of claim 47 wherein determining the airborne status of the wireless device (1000) comprises being operable to determine the airborne status of the wireless device (1000) based on the height-related parameter of the wireless device (1000) which can comprise more than two indications of height.
49. The radio access node (700) of claim 48 wherein the height-related parameter of the wireless device (1000) comprises one of the group consisting of: High-Altitude, Mid- Altitude, and Normal-Altitude.
50. The radio access node (700) of claim 47 wherein determining the airborne status of the wireless device (1000) comprises being operable to determine the airborne status of the wireless device (1000) based on the number of cells the wireless device (1000) sees.
51. The radio access node (700) of claim 50 wherein the number of cells the wireless device (1000) sees is based on a number of reference signals the wireless device (1000) sees from different cells.
52. The radio access node (700) of claim 51 wherein each of the reference signals are one of the group consisting of: a primary synchronization signal, PSS, a secondary synchronization signal, SSS, a cell specific reference signal, CRS, and a synchronization signal block, SSB.
53. The radio access node (700) of any of claims 44 to 52 wherein transmitting the at least one measurement or reporting configuration comprises being operable to transmit a reportconfiguration for a measID that includes the at least one airborne status criterion.
54. The radio access node (700) of any of claims 44 to 53 wherein transmitting the at least one measurement or reporting configuration comprises being operable to transmit a configuration for at least one of the group consisting of: a timeToTrigger parameter, a maxReportCells parameter, a reportlnterval parameter, a reportAmount parameter, and an includeLocationlnfo parameter.
55. The radio access node (700) of any of claims 44 to 54 wherein determining the airborne status of the wireless device (1000) comprises being operable to receive the airborne status of the wireless device (1000) from the wireless device (1000).
56. The radio access node (700) of any of claims 44 to 54 wherein determining the airborne status of the wireless device (1000) comprises being operable to determine the airborne status of the wireless device (1000) at the radio access node (700).
PCT/SE2019/050294 2018-04-05 2019-04-01 Systems and methods for adjusting parameters based on an airborne status WO2019194727A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862653308P 2018-04-05 2018-04-05
US62/653,308 2018-04-05

Publications (1)

Publication Number Publication Date
WO2019194727A1 true WO2019194727A1 (en) 2019-10-10

Family

ID=68101368

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2019/050294 WO2019194727A1 (en) 2018-04-05 2019-04-01 Systems and methods for adjusting parameters based on an airborne status

Country Status (1)

Country Link
WO (1) WO2019194727A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021068930A1 (en) * 2019-10-11 2021-04-15 维沃移动通信有限公司 Measurement report configuration method, device and system
WO2023115268A1 (en) * 2021-12-20 2023-06-29 Nec Corporation Method, device and computer storage medium of communication
WO2024060283A1 (en) * 2022-09-29 2024-03-28 Lenovo (Beijing) Limited Methods and apparatuses for measurement configuration and failure recovery for uav ue

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018194338A1 (en) * 2017-04-21 2018-10-25 Lg Electronics Inc. Method for performing measurement for aerial ue in wireless communication system and a device therefor
WO2019030280A1 (en) * 2017-08-08 2019-02-14 Ipcom Gmbh & Co. Kg Reducing interference from devices at extraordinary altitudes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018194338A1 (en) * 2017-04-21 2018-10-25 Lg Electronics Inc. Method for performing measurement for aerial ue in wireless communication system and a device therefor
WO2019030280A1 (en) * 2017-08-08 2019-02-14 Ipcom Gmbh & Co. Kg Reducing interference from devices at extraordinary altitudes

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
HUAWEI: "Mobility enhancement for Drones", 3GPP DRAFT; R2- 1704997 MOBILITY ENHANCEMENT FOR DRONES , 3RD GENERATION PARTNERSHIP PROJECT (3GPP, 6 May 2017 (2017-05-06), 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051264673 *
KDDI: "Proposal of potential LTE enhancements for Aerial Vehicles", 3GPP DRAFT, 19 May 2017 (2017-05-19), 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051285864 *
LENOVO: "Discussion for status management for aerial UE", 3GPP DRAF T, 8 October 2017 (2017-10-08), 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051343364 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021068930A1 (en) * 2019-10-11 2021-04-15 维沃移动通信有限公司 Measurement report configuration method, device and system
WO2023115268A1 (en) * 2021-12-20 2023-06-29 Nec Corporation Method, device and computer storage medium of communication
WO2024060283A1 (en) * 2022-09-29 2024-03-28 Lenovo (Beijing) Limited Methods and apparatuses for measurement configuration and failure recovery for uav ue

Similar Documents

Publication Publication Date Title
US20220225119A1 (en) Non-terrestrial single frequency network
US9693334B2 (en) Communication control method and user terminal
US11716739B2 (en) Method and apparatus for uplink transmission
WO2020263147A1 (en) First node, wireless device, and methods performed thereby, for handling beamforming beams
US11452013B2 (en) Radio network node, wireless device and methods performed therein
WO2019194727A1 (en) Systems and methods for adjusting parameters based on an airborne status
US20240064598A1 (en) Radio Network Node, User Equipment, and Methods Performed Therein
JP7397842B2 (en) Wireless network nodes, wireless devices, and methods implemented in wireless network nodes and wireless devices that measure beams for cell quality derivation
US20230102370A1 (en) Methods for performing measurements under ue power saving modes
US11902141B2 (en) Radio network node, user equipment (UE) and methods performed in a wireless communication network
US20230089106A1 (en) Systems and methods for operating during a transition phase when a wireless device transitions between operational scenarios
US20240196253A1 (en) Radio Network Node, User Equipment and Methods Performed Therein
US20210385701A1 (en) Wireless Device, First and Second Radio Network Nodes, and Methods Performed therein for Determining Global ID of the Second Radio Network Node
WO2023121530A1 (en) User equipment, network node and methods therein in a wireless communications network
WO2023069002A1 (en) Measurement procedures when configured with multiple relaxed measurement criteria
EP4342219A1 (en) Exchange of cell information
EP4233353A1 (en) Method and nodes for handling beam measurements
WO2018203804A1 (en) Methods for reducing cell search time under coverage enhancement

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19782131

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19782131

Country of ref document: EP

Kind code of ref document: A1