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WO2025177238A1 - Événement de rapport de mesure sélectionné parmi une pluralité sur la base de la capacité d'un terminal d'équipement utilisateur à déterminer sa vitesse ou une vitesse de l'équipement utilisateur - Google Patents

Événement de rapport de mesure sélectionné parmi une pluralité sur la base de la capacité d'un terminal d'équipement utilisateur à déterminer sa vitesse ou une vitesse de l'équipement utilisateur

Info

Publication number
WO2025177238A1
WO2025177238A1 PCT/IB2025/051898 IB2025051898W WO2025177238A1 WO 2025177238 A1 WO2025177238 A1 WO 2025177238A1 IB 2025051898 W IB2025051898 W IB 2025051898W WO 2025177238 A1 WO2025177238 A1 WO 2025177238A1
Authority
WO
WIPO (PCT)
Prior art keywords
speed
measurement reporting
reference signal
user equipment
measurement
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/IB2025/051898
Other languages
English (en)
Inventor
Dhanushka Nalin Jayaweera RAJAPAKSHALAGE
Samantha Caporal Del Barrio
Sami-Jukka Hakola
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Technologies Oy
Original Assignee
Nokia Technologies Oy
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 Nokia Technologies Oy filed Critical Nokia Technologies Oy
Publication of WO2025177238A1 publication Critical patent/WO2025177238A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
    • 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

Definitions

  • the present disclosure relates to a method, an apparatus and a computer program for transmitting a measurement report in a communication system.
  • a communication system can be seen as a facility that enables communication sessions between two or more entities such as communication devices, base stations and/or other nodes by providing carriers between the various entities involved in the communications path.
  • the communication system and associated entities typically operate in accordance with a given standard or specification which sets out what the associated entities are permitted to do and how that should be achieved. Communication protocols and/or parameters which shall be used for the connection are also typically defined. Examples of standard are the so-called 5G standards.
  • an apparatus comprising: means for receiving, from a base station, at least one reference signal transmitted on at least one transmission beam; means for measuring the at least one reference signal transmitted on the at least one
  • means for detecting a measurement reporting event wherein the measurement reporting event is selected amongst a plurality of measurement reporting events based on at least one of a capability of the apparatus to determine a speed of the apparatus or a speed of the apparatus; and means for transmitting, to the base station, a measurement report, in response to the detected measurement reporting event.
  • the apparatus may comprise: means for determining at least one of the capability of the apparatus to determine the speed of the apparatus or the speed of the apparatus; and means for selecting the measurement reporting event amongst the plurality of measurement reporting events based on at least one of the capability of the apparatus to determine the speed of the
  • the apparatus may comprise: means for transmitting, to the base station, an indication of at least one of the capability of the apparatus to determine the speed of the apparatus or the speed of the apparatus; and means for receiving, from the base station, the measurement reporting event selected, by the base station, amongst the plurality of measurement reporting events based on at least one of the capability of the apparatus to determine the speed of the apparatus or the speed of the apparatus.
  • the speed of the apparatus comprises at least one of: a translational speed; or a rotational speed.
  • the translational speed may refer to a distance per unit of time (e.g., expressed in meters per second or kilometre per hour) or a number of TX beam switches per unit of time (e.g., expressed in number of TX beam switches per second).
  • the rotational speed may refer an angle per unit of time (e.g., expressed in degrees per second) or a number of TX beam switches per unit of time (e.g., expressed in number of TX beam switches per second).
  • the speed of the apparatus comprises at least one of: an instantaneous speed; or an average speed.
  • the means for receiving, from a base station, at least one reference signal transmitted on at least one transmission beam may comprise: means for receiving, from the base station, a reference signal transmitted on a serving transmission beam and at least one reference signal transmitted on at least one candidate transmission beam; and the means for measuring the at least one reference signal transmitted on the at least one transmission beam may comprise: means for measuring the reference signal transmitted on the serving transmission beam and the at least one reference signal transmitted on the at least one candidate transmission beam.
  • the plurality of measurement reporting events may comprise at least one of: a first measurement reporting event comprising a measurement of one of the at least one reference signal transmitted on one of the at least one candidate transmission beam being better than a measurement of the reference signal transmitted on the serving transmission beam; a second measurement reporting event comprising a measurement of one of the at least one reference signal transmitted on one of the at least one candidate transmission beam being better than a measurement of the reference signal transmitted on the serving transmission beam by a measurement threshold; or a third measurement reporting event comprising measurements of reference signals transmitted on K candidate transmission beams being better than a measurement of the reference signal transmitted on the serving transmission beam, where K is equal to or greater than two.
  • the first measurement reporting event may be selected when the apparatus is not capable of determining the speed of the apparatus; the second measurement reporting event may be selected when the apparatus is capable of determining the speed of the apparatus and the speed of the apparatus is greater than a speed threshold; or the third measurement reporting event may be selected when the apparatus is capable of determining the speed of the apparatus and the speed of the apparatus is lower than the speed threshold.
  • the first measurement reporting event may be selected when the apparatus is capable of determining the speed of the apparatus and the speed of the apparatus is lower than a first speed threshold; the third measurement reporting event may be selected when the apparatus is capable of determining the speed of the apparatus and the speed of the apparatus is greater than the first speed threshold and lower than a second speed threshold; or the second measurement reporting event may be selected when the apparatus is capable of determining the speed of the apparatus and the speed of the apparatus is greater than the second speed threshold.
  • the apparatus may comprise: means for receiving, from the base station, at least one of the measurement threshold, the speed threshold, the first speed threshold or the second speed threshold.
  • the speed threshold, the first speed threshold or the second speed threshold may be received by radio resource control signaling.
  • Measuring the at least one reference signal transmitted on the at least one transmission beam may comprise at least one of: measuring a reference signal received power of the at least one reference signal transmitted on the at least one transmission beam; measuring a reference signal received quality of the at least one reference signal transmitted on the at least one transmission beam; or measuring a signal to interference plus noise ratio of the at least one reference signal transmitted on the at least one transmission beam.
  • the measurement report may comprise at least one of: an indication of at least one reference signal transmitted on at least one transmission beam; an indication of at least one measurement associated with at least one reference signal transmitted on at least one transmission beam; or an indication of at least one transmission beam associated with at least one reference signal transmitted on at least one transmission beam.
  • the at least one reference signal transmitted on the at least one transmission beam may comprise at least one of: a synchronization signal block; or a channel state information reference signal.
  • the apparatus may be a user equipment.
  • the base station may be a gNodeB.
  • a method comprising: receiving, from a base station, at least one reference signal transmitted on at least one transmission beam; measuring the at least one reference signal transmitted on the at least one transmission beam; detecting a measurement reporting event, wherein the measurement reporting event is selected amongst a plurality of measurement reporting events based on at least one of a capability of the apparatus to determine a speed of the apparatus or a speed of the apparatus; and transmitting, to the base station, a measurement report, in response to the detected measurement reporting event.
  • the method may be performed by an apparatus.
  • the method may comprise: determining at least one of the capability of the apparatus to determine the speed of the apparatus or the speed of the apparatus; and selecting the measurement reporting event amongst the plurality of measurement reporting events based on at least one of the capability of the apparatus to determine the speed of the apparatus or the speed of the apparatus.
  • the method may comprise: transmitting, to the base station, an indication of at least one of the capability of the apparatus to determine the speed of the apparatus or the speed of the apparatus; and receiving, from the base station, the measurement reporting event selected, by the base station, amongst the plurality of measurement reporting events based on at least one of the capability of the apparatus to determine the speed of the apparatus or the speed of the apparatus.
  • the speed of the apparatus comprises at least one of: a translational speed; or a rotational speed.
  • the translational speed may refer to a distance per unit of time (e.g., expressed in meters per second or kilometre per hour) or a number of TX beam switches per unit of time (e.g., expressed in number of TX beam switches per second).
  • the rotational speed may refer an angle per unit of time (e.g., expressed in degrees per second) or a number of TX beam switches per unit of time (e.g., expressed in number of TX beam switches per second).
  • the speed of the apparatus comprises at least one of: an instantaneous speed; or an average speed.
  • the plurality of measurement reporting events may comprise at least one of: a first measurement reporting event comprising a measurement of one of the at least one reference signal transmitted on one of the at least one candidate transmission beam being better than a measurement of the reference signal transmitted on the serving transmission beam; a second measurement reporting event comprising a measurement of one of the at least one reference signal transmitted on one of the at least one candidate transmission beam being better than a measurement of the reference signal transmitted on the serving transmission beam by a measurement threshold; or a third measurement reporting event comprising measurements of reference signals transmitted on K candidate transmission beams being better than a measurement of the reference signal transmitted on the serving transmission beam, where K is equal to or greater than two.
  • the first measurement reporting event may be selected when the apparatus is not capable of determining the speed of the apparatus; the second measurement reporting event may be selected when the apparatus is capable of determining the speed of the apparatus and the speed of the apparatus is greater than a speed threshold; or the third measurement reporting event may be selected when the apparatus is capable of determining the speed of the apparatus and the speed of the apparatus is lower than the speed threshold.
  • Measuring the at least one reference signal transmitted on the at least one transmission beam may comprise at least one of: measuring a reference signal received power of the at least one reference signal transmitted on the at least one transmission beam; measuring a reference signal received quality of the at least one reference signal transmitted on the at least one transmission beam; or measuring a signal to interference plus noise ratio of the at least one reference signal transmitted on the at least one transmission beam.
  • the at least one reference signal transmitted on the at least one transmission beam may comprise at least one of: a synchronization signal block; or a channel state information reference signal.
  • the apparatus may be a user equipment.
  • the base station may be a gNodeB.
  • an apparatus comprising circuitry configured to perform: receiving, from a base station, at least one reference signal transmitted on at least one transmission beam; measuring the at least one reference signal transmitted on the at least one transmission beam; detecting a measurement reporting event, wherein the measurement reporting event is selected amongst a plurality of measurement reporting events based on at least one of a capability of the apparatus to determine a speed of the apparatus or a speed of the apparatus; and transmitting, to the base station, a measurement report, in response to the detected measurement reporting event.
  • an apparatus comprising: means for receiving, from a user equipment, an indication of at least one of a capability of the user equipment to determine a speed of the user equipment or the speed of the user equipment; means for selecting a measurement reporting event amongst a plurality of measurement reporting events based on at least one of the capability of the user equipment to determine the speed of the user equipment or the speed of the user equipment; and means for transmitting, to the user equipment, an indication of the measurement reporting event selected by the apparatus.
  • the base station may be a gNodeB.
  • a method comprising: receiving, from a user equipment, an indication of at least one of a capability of the user equipment to determine a speed of the user equipment or the speed of the user equipment; selecting a measurement reporting event amongst a plurality of measurement reporting events based on at least one of the capability of the user equipment to determine the speed of the user equipment or the speed of the user equipment; and transmitting, to the user equipment, an indication of the measurement reporting event.
  • the method may be performed by an apparatus.
  • the apparatus may be a base station.
  • the base station may be a gNodeB.
  • an apparatus comprising circuitry configured to perform: receiving, from a user equipment, an indication of at least one of a capability of the user equipment to determine a speed of the user equipment or the speed of the user equipment; selecting a measurement reporting event amongst a plurality of measurement reporting events based on at least one of the capability of the user equipment to determine the speed of the user equipment or the speed of the user equipment; and transmitting, to the user equipment, an indication of the measurement reporting event.
  • an apparatus comprising at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to perform: receiving, from a user equipment, an indication of at least one of a capability of the user equipment to determine a speed of the user equipment or the speed of the user equipment; selecting a measurement reporting event amongst a plurality of measurement reporting events based on at least one of the capability of the user equipment to determine the speed of the user equipment or the speed of the user equipment; and transmitting, to the user equipment, an indication of the measurement reporting event
  • a computer program comprising computer executable code which when run on at least one processor is configured to perform: receiving, from a user equipment, an indication of at least one of a capability of the user equipment to determine a speed of the user equipment or the speed of the user equipment; selecting a measurement reporting event amongst a plurality of measurement reporting events based on at least one of the capability of the user equipment to determine the speed of the user equipment or the speed of the user equipment; and transmitting, to the user equipment, an indication of the measurement reporting event.
  • a computer readable medium comprising program instructions stored thereon for performing at least one of the above methods.
  • a non-transitory computer readable medium comprising program instructions stored thereon for performing at least one of the above methods.
  • non-volatile tangible memory medium comprising program instructions stored thereon for performing at least one of the above methods.
  • AMF Access and Mobility Management Function
  • AUSF Authentication Server Function
  • CSI RS Channel State Information Reference Signal
  • CU Centralized Unit DU: Distributed Unit gNB: gNodeB loT: Internet of Things
  • NEF Network Exposure Function
  • NRF Network Repository Function
  • RAM Random Access Memory
  • RSRP Reference Signal Received Power
  • SINR Signal to Interference plus Noise Ratio
  • UE User Equipment
  • 5GC 5G Core network
  • FIG. 1 shows a schematic representation of an example of a 5G system
  • Fig. 2 shows a schematic representation of an example of a control apparatus
  • Fig. 3 shows a schematic representation of an example of a user equipment
  • Fig. 4 shows a schematic representation of an example of a first phase, a second phase and a third phase of a beam management procedure
  • Fig. 5a shows a signalling diagram of an example of process for transmitting a measurement report
  • Fig. 5b shows a signalling diagram of another example of process for transmitting a measurement report
  • Fig. 6 shows bar charts of ratio between a number of aperiodical measurement report transmissions triggered by a measurement reporting event and a number of periodical or semiperiodical measurements, when the measurement reporting event is a first measurement reporting event, a second measurement reporting event and a third measurement reporting event and when a translation speed is 3kmph and 120kmph;
  • Fig. 7 shows bar charts of data throughputs for aperiodical measurement report transmissions triggered by a measurement reporting event, when the measurement reporting event is a first measurement reporting event, a second measurement reporting event and a third measurement reporting event and when a user equipment has poor channel conditions (i.e., cell-edge user equipment or 5 th percentile) and median channel conditions (i.e., cell-median user equipment or 50 th percentile);
  • poor channel conditions i.e., cell-edge user equipment or 5 th percentile
  • median channel conditions i.e., cell-median user equipment or 50 th percentile
  • Fig. 8 shows a block diagram of a method for transmitting a measurement report
  • Fig. 9 show a block diagram of a method for transmitting an indication of a measurement reporting event.
  • Fig. 10 shows a schematic representation of a non-volatile memory 1000 medium storing instructions which when executed by a processor allow a processor to perform one or more of the steps of the methods of Fig.8 or Fig. 9. Detailed Description of the Figures
  • FIG. 1 shows a schematic representation of a 5G system (5GS).
  • a beam management procedure may refer to a procedure to align a transmission (TX) beam of a BS with a reception (RX) beam of a UE.
  • the beam management procedure may comprise three phases: a first phase (P1 ), a second phase (P2) and a third phase (P3).
  • the BS may perform a broad TX beam sweep from a set of broad TX beams.
  • Each broad TX beam may be associated with a respective synchronization signal block (SSB).
  • the SSBs may be sent sequentially in a SSB burst.
  • the UE may perform a broad RX beam sweep from a set of broad RX beams.
  • the UE may determine a strongest broad TX beam based on the measurements.
  • the UE may transmit a measurement report including an indication of the strongest broad TX beam to the BS.
  • the UE may transmit a measurement report including the measurements to the BS.
  • the BS may determine the strongest broad TX beam to the BS based on the measurements.
  • the BS may perform a narrow TX beam sweep from a set of narrow TX beams.
  • the narrow TX beams may be quasi-colocated with the broad TX beam selected by the UE in P1 .
  • Each narrow TX beam may be associated with a respective channel state information reference signal (CSI RS).
  • CSI RS channel state information reference signal
  • the UE may measure each narrow TX beam whilst using the strongest broad RX beam.
  • the measurements may include layer 1 (L1 ) reference signal received power (RSRP), reference signal received quality (RSRQ) or signal to interference plus noise (SINR) measurements.
  • RSRP layer 1
  • RSRQ reference signal received quality
  • SINR signal to interference plus noise
  • the UE may determine a strongest narrow TX beam based on the RSRP, RSRQ or SINR measurements.
  • the UE may transmit a measurement report including an indication of the strongest narrow TX beam to the BS.
  • the UE may transmit a measurement report including the RSRP, RSRQ or SINR measurements to the BS.
  • the BS may select a strongest narrow TX beam based on the RSRP, RSRQ or SINR measurements.
  • the strongest narrow TX beam is associated with CSI RS3 (i.e. CSI3 on Figure 4).
  • the BS may repeat transmissions of the CSI RS on the strongest narrow TX beam.
  • the BS may repeat transmissions of CSI RS3.
  • the UE may perform a narrow RX beam sweep from a set of narrow RX beams.
  • the narrow RX beams may be generated via the antenna panel selected by the UE in P1.
  • the UE may perform L1 RSRP or RSRQ measurements for the narrow RX beams.
  • the UE may select a strongest narrow RX beam.
  • the strongest narrow RX beam may be aligned with the strongest narrow TX beam.
  • the BS and the UE may perform the beam management procedure to select a narrow TX beam (serving TX beam) and a narrow RX beam (serving RX beam) to communicate.
  • the BS and the UE may subsequently perform the beam management procedure to select a narrow TX beam (candidate TX beam) and a narrow RX beam (candidate RX beam) to replace a previously selected narrow TX beam (serving TX beam) and a previously selected narrow RX beam (serving RX beam) to communicate.
  • the UE may transmit the measurement report aperiodically (e.g., when a measurement reporting event is detected). In this way, less uplink resource may be utilized for measurement reports transmission, more uplink resources may be utilized for data transmission, the data throughput may be improved and beam “ping-pong” may be reduced.
  • Measurement reporting event may be used interchangeably.
  • One or more aspects of this disclosure relate to configuring a UE that may transmit a measurement report when a measurement reporting event is detected, where the measurement event is selected amongst a plurality of measurement events based on at least one of a capability of the UE to determine a speed of the UE (i.e. , capable or not capable) or a speed of the UE (e.g., X kmph).
  • a capability of the UE i.e. , capable or not capable
  • a speed of the UE e.g., X kmph
  • a UE may receive, from a base station, a plurality of reference signal (RSs) transmitted on a plurality of TX beams.
  • the UE may receive, from a base station, a plurality of reference signal (RSs) transmitted on a plurality of TX beams periodically or semi-periodically.
  • the plurality of TX beam may comprise a serving TX beam and a plurality of candidate TX beams.
  • the serving TX beam may comprise a broad TX beam associated with a SSB and the plurality of candidate TX beams may comprise a plurality of broad TX beams associated with a plurality of SSBs.
  • the UE may measure the RS transmitted on the serving TX beam and the RSs transmitted on the plurality of candidate TX beams.
  • the UE may measure the RS transmitted on the serving TX beam and the RSs transmitted on the plurality of candidate TX beams periodically or semi-periodically.
  • the UE may filter the measurement of the RS transmitted on the serving TX beam, for example using a temporal filter (e.g., averaging filter).
  • the UE may filter the measurements of the RSs transmitted on the plurality of candidate TX beams, for example using a temporal filter (e.g., averaging filter). In this way, effects of fast fading may be minimized.
  • the UE may detect a measurement reporting event based on the measurements of the RS transmitted on the serving TX beam and the RSs transmitted on the plurality of candidate TX beams.
  • the measurement reporting event may be selected amongst a plurality of measurement reporting events based on at least one of a capability of the UE to determine a speed of the UE or a speed of the UE.
  • the speed of the UE may comprise at least one of a translational speed or a rotational speed.
  • the translational speed may refer to a distance per unit of time (e.g., expressed in meters per second or kilometre per hour (kmph)) or a number of TX beam switches per unit of time (e.g., expressed in number of TX beam switches per second).
  • the translational speed may be determined based on measurements of the RS transmitted on the serving TX beam and the RSs transmitted on the plurality of candidate TX beams (e.g., a variation of measurements over a period of time may indicate a doppler effect).
  • the translational speed may be determined using an accelerometer.
  • the rotational speed may refer an angle per unit of time (e.g., expressed in degrees per second) or a number of TX beam switches per unit of time (e.g., expressed in number of TX beam switches per second).
  • the rotational speed may be determined using a gyroscope.
  • the UE may determine at least one of the capability of the UE to determine whether an antenna panel is covered or whether an antenna panel is covered.
  • the UE may select the measurement reporting event amongst the plurality of measurement reporting events based on at least one the capability of the UE to determine whether an antenna panel is covered (i.e., capable or not capable) or whether an antenna panel is covered (i.e. covered or not covered). Whether an antenna panel being covered may provide an indication that a beam switch is required.
  • the UE may transmit, to the base station, an indication of at least one of the capability of the UE to determine the speed of the UE or the speed of the UE.
  • the BS may determine speed of the UE.
  • the UE may receive, from the BS, the measurement reporting event selected, by the BS, amongst the plurality of measurement reporting events based on at least one of the capability of the UE to determine the speed of the UE or the speed of the UE.
  • the plurality of measurement reporting events may comprise at least one of a first measurement reporting event, a second measurement reporting event or a third measurement reporting event.
  • the second measurement reporting event may comprise a power or quality measurement of the RS transmitted on one of the candidate TX beams (e.g., best candidate TX beam) being better than a power or quality measurement of the RS transmitted on the serving TX beam a power or quality measurement threshold (e.g. 3dB).
  • a power or quality measurement threshold e.g. 3dB
  • the first reporting event may be selected when the UE is not capable of determining the speed of the UE.
  • the second measurement reporting event may be selected when the UE is capable of determining the speed of the UE and the speed of the UE is greater than a speed threshold (e.g., 30kmph or 5 switches per second).
  • the third measurement reporting event may be selected when the UE is capable of determining the speed of the UE and the speed of the UE is lower than the speed threshold.
  • the UE may receive, from the BS, the speed threshold, for example via RRC signalling.
  • the speed threshold may be selected, by the BS, amongst a plurality of speed thresholds supported by the UE.
  • the UE may transmit, to the BS, the plurality of speed thresholds supported by the UE.
  • the first measurement reporting event may be selected when the UE is capable of determining the speed of the UE and the speed of the UE is lower than a first speed threshold (e.g., 1 kmph).
  • the third measurement reporting event may be selected when the UE is capable of determining the speed of the UE and the speed of the UE is greater than the first speed threshold and lower than a second speed threshold (e.g., 30kmph).
  • the second measurement reporting event may be selected when the UE is capable of determining the speed of the UE and the speed of the UE is greater than the second speed threshold.
  • the UE may receive, from the BS, the first speed threshold and the second speed threshold for example via RRC signalling.
  • the UE may receive, from the BS, the first speed threshold and the second speed threshold, for example via RRC signalling.
  • the first speed threshold and the second speed threshold may be selected, by the BS, amongst a plurality of first speed thresholds and second speed thresholds supported by the UE.
  • the UE may transmit, to the BS, the plurality of first speed threshold and the second speed threshold supported by the UE.
  • the UE may transmit, to the BS, a measurement report.
  • the UE may transmit, to the BS, a measurement report aperiodically (i.e., when the measurement reporting event is detected).
  • the measurement report may comprise an indication of at least one RS transmitted on at least one TX beam.
  • the measurement report may indicate the RS transmitted on the serving TX beam.
  • the measurement report may indicate the RS transmitted on a candidate TX beam (e.g., best candidate TX beam).
  • the measurement report may indicate the RS transmitted on K candidate TX beams (e.g., K best candidate TX beams).
  • the measurement report may comprise an indication of at least one measurement associated with at least one RS transmitted on at least one TX beam.
  • the measurement report may indicate a measurement associated with the RS transmitted on the serving TX beam.
  • the measurement report may indicate a measurement associated with the RS transmitted on a candidate TX beam (e.g., best candidate TX beam).
  • the measurement report may indicate a measurement associated with the RS transmitted on K candidate TX beams (e.g., K best candidate TX beams).
  • the measurement report may comprise an indication of at least one TX beam.
  • the measurement report may comprise an indication of the serving TX beam.
  • the measurement report may comprise an indication of a candidate TX beam (e.g., best candidate TX beam) or an indication of K candidate TX beams (e.g., K best candidate TX beam).
  • the BS may select a TX beam based on the measurement report. For example, the BS may select a candidate TX beam (e.g., best candidate TX beam or one of the K best candidate TX beams).
  • a candidate TX beam e.g., best candidate TX beam or one of the K best candidate TX beams.
  • the UE may receive, from the BS, an indication of the selected TX beam e.g., best candidate TX beam or one of the K best candidate TX beams).
  • an indication of the selected TX beam e.g., best candidate TX beam or one of the K best candidate TX beams.
  • measurement report is transmitted to the BS aperiodically when there is a need as opposed to periodically or semi- periodically. Hence, measurement report transmission overhead may be reduced.
  • periodical or semi-periodical measurement report transmissions may trigger beam “ping-pong” because of fast fading.
  • Aperiodical measurement report transmissions may reduce the beam “ping-pong” and eventually the user throughput.
  • Fig. 5a shows a signalling diagram of an example of a process for transmitting a measurement report.
  • the UE may receive a plurality of RSs transmitted on a plurality of TX beams.
  • the UE may measure the RSs transmitted on the plurality of TX beams.
  • the UE may select a first measurement reporting event.
  • the UE may select a second measurement reporting event. If the UE is capable of determining a speed of the UE and the speed of the UE is lower than the speed threshold p, the UE may select a third measurement reporting event.
  • the UE may detect the selected measurement reporting event based on the measurement of the RSs transmitted on the plurality of TX beams.
  • the UE may transmit to the BS, a measurement report.
  • the BS may select a TX beam based on the measurement report.
  • the UE may receive, from the BS, an indication of the selected TX beam.
  • Fig. 5b shows a signalling diagram of an example of a process for transmitting a measurement report.
  • the UE may receive a plurality of RSs transmitted on a plurality of TX beams.
  • the UE may measure the RSs transmitted on the plurality of TX beams.
  • the UE may select a first measurement reporting event.
  • the UE may select a third measurement reporting event.
  • the UE may select a second measurement reporting event.
  • the UE may detect the selected measurement reporting event based on the measurement of the RSs transmitted on the plurality of TX beams.
  • the UE may transmit to the BS, a measurement report.
  • the BS may select a TX beam based on the measurement report.
  • the UE may receive, from the BS, an indication of the selected TX beam.
  • Fig. 6 shows bar charts of ratio between a number of aperiodical measurement report transmissions triggered by a measurement reporting event and a number of periodical or semi periodical measurements, when the measurement reporting event is a first measurement reporting event, a second measurement reporting event and a third measurement reporting event and when a translational speed is 3kmph and 120kmph.
  • the ratio between a number of measurement report transmissions triggered by the first measurement reporting event and a number of periodical or semi periodical measurements may be reduced by 65% compared to a ratio between a number of periodical or semi periodical measurement report transmissions and a number of periodical or semi periodical measurements (assuming that the measurements and the measurement report transmissions have the same periodicity).
  • the ratio between a number of measurement report transmissions triggered by the first measurement reporting event and a number of periodical or semi periodical measurements may be increased by 3 to 5%.
  • the ratio between a number of measurement report transmissions triggered by the second measurement reporting event and a number of periodical or semi periodical measurements may be reduced by 75% compared to a ratio between a number of periodical or semi periodical measurement report transmissions and a number of periodical or semi periodical measurements (assuming that the measurements and the measurement report transmissions have the same periodicity).
  • the ratio between a number of measurement report transmissions triggered by the second measurement reporting event and a number of periodical or semi periodical measurements may be increased by 3 to 5%.
  • the ratio between a number of measurement report transmissions triggered by the third measurement reporting event and a number of periodical or semi periodical measurements may be reduced by 90% compared to a ratio between a number of periodical or semi periodical measurement report transmissions and a number of periodical or semi periodical measurements (assuming that the measurements and the measurement report transmissions have the same periodicity).
  • the ratio between a number of measurement report transmissions triggered by the third measurement reporting event and a number of periodical or semi periodical measurements may be increased by 3 to 5%.
  • Fig. 7 shows bar charts of data throughputs for aperiodical measurement report transmissions triggered by a measurement reporting event, when the measurement reporting event is a first measurement reporting event, a second measurement reporting event and a third measurement reporting event and when a user equipment has poor channel conditions (i.e., cell-edge UE or 5 th percentile) and median channel conditions (i.e., cell-median UE or 50 th percentile).
  • poor channel conditions i.e., cell-edge UE or 5 th percentile
  • median channel conditions i.e., cell-median UE or 50 th percentile
  • the third measurement reporting event may provide the highest data throughput, when the speed of the UE is 3kmph (i.e., low speed) and when the UE has poor channel conditions (i.e., cell-edge UE or 5 th percentile) or median channel conditions (i.e., cell-median UE or 50 th percentile).
  • 3kmph i.e., low speed
  • median channel conditions i.e., cell-median UE or 50 th percentile
  • the second measurement reporting event may provide the highest data throughput, when the speed of the UE is 120kmph (i.e., high speed) and when the UE has poor channel conditions (i.e., cell-edge UE or 5 th percentile) or median channel conditions (i.e., cell-median UE or 50 th percentile).
  • the same trends may be observed when the UE has good channel conditions (i.e., cell-centre UE or 95 th percentile).
  • Fig. 8 shows a block diagram of a method for transmitting a measurement report.
  • a UE may receive, from a BS, at least one RS transmitted on at least one TX beam.
  • the UE may measure the at least one RS transmitted on the at least one TX beam.
  • the UE may detect a measurement reporting event, wherein the measurement reporting event is selected amongst a plurality of measurement reporting events based on at least one of a capability of the UE to determine a speed of the UE or a speed of the UE.
  • the UE may transmit, to the BS, a measurement report, in response to the detected measurement reporting event.
  • Fig. 9 show a block diagram of a method for transmitting an indication of a measurement reporting event.
  • a BS may receive, from a UE, an indication of at least one of a capability of the UE to determine a speed of the UE or the speed of the UE.
  • the BS may select a measurement reporting event amongst a plurality of measurement reporting events based on at least one of the capability of the UE to determine the speed of the UE or the speed of the UE.
  • the BS may transmit, to the UE, an indication of the measurement reporting event selected by the BS.
  • Fig. 10 shows a schematic representation of non-volatile memory media 1000 storing instructions which when executed by a processor allow the processor to perform one or more of the steps of the methods of Fig. 8 or Fig.9.
  • some embodiments may be implemented in hardware or special purpose circuits, software, logic or any combination thereof.
  • some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device, although embodiments are not limited thereto.
  • firmware or software which may be executed by a controller, microprocessor or other computing device, although embodiments are not limited thereto. While various embodiments may be illustrated and described as block diagrams, flow charts, or using some other pictorial representation, it is well understood that these blocks, apparatus, systems, techniques or methods described herein may be implemented in, as nonlimiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
  • the embodiments may be implemented by computer software stored in a memory and executable by at least one data processor of the involved entities or by hardware, or by a combination of software and hardware.
  • any procedures e.g., as in Fig. 8 or Fig. 9, may represent program steps, or interconnected logic circuits, blocks and functions, or a combination of program steps and logic circuits, blocks and functions.
  • the software may be stored on such physical media as memory chips, or memory blocks implemented within the processor, magnetic media such as hard disk or floppy disks, and optical media such as for example DVD and the data variants thereof, CD.
  • the memory may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as semiconductor-based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory and removable memory.
  • the data processors may be of any type suitable to the local technical environment, and may include one or more of general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs), application specific integrated circuits (ASIC), gate level circuits and processors based on multi-core processor architecture, as non-limiting examples.
  • circuitry may be configured to perform one or more of the functions and/or method steps previously described.
  • the circuitry may be provided in a base station and/or in a user equipment.
  • circuitry may refer to one or more or all of the following:
  • circuitry (c) hardware circuit(s) and or processor(s), such as a microprocessor(s) or a portion of a microprocessor(s), that requires software (e.g., firmware) for operation, but the software may not be present when it is not needed for operation.
  • software e.g., firmware
  • circuitry also covers an implementation of merely a hardware circuit or processor (or multiple processors) or portion of a hardware circuit or processor and its (or their) accompanying software and/or firmware.
  • circuitry also covers, for example integrated device.

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

Abstract

La divulgation se rapporte à un appareil comprenant : des moyens de réception, en provenance d'une station de base, d'au moins un signal de référence émis sur au moins un faisceau d'émission ; des moyens pour mesurer le ou les signaux de référence émis sur le ou les faisceaux d'émission ; des moyens pour détecter un événement de rapport de mesure, l'événement de rapport de mesure étant sélectionné parmi une pluralité d'événements de rapport de mesure sur la base d'au moins l'une d'une capacité de l'appareil à déterminer une vitesse de l'appareil ou d'une vitesse de l'appareil ; et des moyens pour émettre, vers la station de base, un rapport de mesure, en réponse à l'événement de rapport de mesure détecté.
PCT/IB2025/051898 2024-02-23 2025-02-21 Événement de rapport de mesure sélectionné parmi une pluralité sur la base de la capacité d'un terminal d'équipement utilisateur à déterminer sa vitesse ou une vitesse de l'équipement utilisateur Pending WO2025177238A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140099959A1 (en) * 2010-04-27 2014-04-10 Samsung Electronics Co., Ltd. Apparatus and method for providing handover support information in mobile communication system
US10499293B2 (en) * 2016-08-15 2019-12-03 Qualcomm Incorporated Handover in high speed networks
US20200068422A1 (en) * 2017-05-05 2020-02-27 Huawei Technologies Co., Ltd. Measurement Reporting Method and Apparatus
US20230031604A1 (en) * 2020-04-17 2023-02-02 Vivo Mobile Communication Co., Ltd. Positioning information processing method, terminal device and network device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140099959A1 (en) * 2010-04-27 2014-04-10 Samsung Electronics Co., Ltd. Apparatus and method for providing handover support information in mobile communication system
US10499293B2 (en) * 2016-08-15 2019-12-03 Qualcomm Incorporated Handover in high speed networks
US20200068422A1 (en) * 2017-05-05 2020-02-27 Huawei Technologies Co., Ltd. Measurement Reporting Method and Apparatus
US20230031604A1 (en) * 2020-04-17 2023-02-02 Vivo Mobile Communication Co., Ltd. Positioning information processing method, terminal device and network device

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