Based on the capability of the user equipment terminal to determine its speed or the speed of the user equipment to select a measurement reporting event among a plurality of measurement reporting events

Abstract

The present disclosure relates to 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 transmission beam; means for detecting a measurement reporting event, wherein the measurement reporting event is selected among 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 the speed of the apparatus; and means for transmitting, to the base station, a measurement report in response to the detected measurement reporting event.

Description

Technical Field

[0001] This disclosure relates to methods, apparatus, and computer programs for transmitting measurement reports in a communication system. Background Technology

[0002] A communication system can be viewed 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 various entities involved in the communication path.

[0003] Communication systems and associated entities typically operate according to a given standard or specification, which dictates what the associated entities are allowed to do and how they should be implemented. The communication protocols and / or parameters that should be used for the connection are also usually defined. An example of such a standard is the so-called 5G standard. Summary of the Invention

[0004] According to one aspect, an apparatus is provided, 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 at least one transmission beam; means for detecting a measurement reporting event, wherein the measurement reporting event is selected among a plurality of measurement reporting events based on at least one of the means's ability to determine the speed of the means or the speed of the means; and means for transmitting a measurement report to the base station in response to the detected measurement reporting event.

[0005] The apparatus may include: components for determining at least one of the following: the apparatus's ability to determine the speed of the apparatus, or the speed of the apparatus; and components for selecting a measurement reporting event from a plurality of measurement reporting events based on at least one of the apparatus's ability to determine the speed of the apparatus or the speed of the apparatus.

[0006] The apparatus may include: a component for transmitting an indication to a base station, the indication indicating at least one of the following: the apparatus's capability to determine the speed of the apparatus, or the speed of the apparatus; and a component for receiving a measurement reporting event from the base station, the measurement reporting event being selected by the base station from among a plurality of measurement reporting events based on at least one of the apparatus's capability to determine the speed of the apparatus or the speed of the apparatus.

[0007] The speed of the device includes at least one of the following: translational speed; or rotational speed.

[0008] Translation speed can refer to the distance per unit time (e.g., in meters per second or kilometers per hour) or the number of TX beam switching per unit time (e.g., in TX beam switching per second).

[0009] Rotation speed can refer to angle per unit time (e.g., in degrees per second) or the number of TX beam switching per unit time (e.g., in TX beam switching per second).

[0010] The speed of the device includes at least one of the following: instantaneous speed; or average speed.

[0011] The components for receiving from a base station at least one reference signal transmitted on at least one transmission beam may include: components for receiving from the base station at least one reference signal transmitted on a serving transmission beam and at least one reference signal transmitted on at least one candidate transmission beam; and the components for measuring at least one reference signal transmitted on at least one transmission beam may include: components for measuring at least one reference signal transmitted on a serving transmission beam and at least one reference signal transmitted on at least one candidate transmission beam.

[0012] Multiple measurement reporting events may include at least one of the following: a first measurement reporting event, including: a measurement of one of the reference signals in at least one reference signal is superior to a measurement of a reference signal transmitted on the serving transmission beam, wherein the at least one reference signal is transmitted on one of the candidate transmission beams in at least one candidate transmission beam; a second measurement reporting event, including: the measurement of one of the reference signals in at least one reference signal being superior to a measurement of a reference signal transmitted on the serving transmission beam reaches a measurement threshold, wherein the at least one reference signal is transmitted on one of the candidate transmission beams in at least one candidate transmission beam; or a third measurement reporting event, including: a measurement of a reference signal transmitted on K candidate transmission beams is superior to a measurement of a reference signal transmitted on the serving transmission beam, wherein K is equal to or greater than 2.

[0013] When the device cannot determine the speed of the device, a first measurement reporting event can be selected; when the device can determine the speed of the device and the speed of the device is greater than the speed threshold, a second measurement reporting event can be selected; or when the device can determine the speed of the device and the speed of the device is less than the speed threshold, a third measurement reporting event can be selected.

[0014] A first measurement reporting event can be selected when the device can determine the speed of the device and the speed of the device is lower than a first speed threshold; a third measurement reporting event can be selected when the device can determine the speed of the device and the speed of the device is greater than the first speed threshold and lower than a second speed threshold; or a second measurement reporting event can be selected when the device can determine the speed of the device and the speed of the device is greater than the second speed threshold.

[0015] The apparatus may include a component for receiving at least one of a measurement threshold, a speed threshold, a first speed threshold, or a second speed threshold from a base station.

[0016] The speed threshold, the first speed threshold, or the second speed threshold can be received via radio resource control signaling.

[0017] Measuring at least one reference signal transmitted on at least one transmission beam may include at least one of the following: measuring the reference signal received power of at least one reference signal transmitted on at least one transmission beam; measuring the reference signal received quality of at least one reference signal transmitted on at least one transmission beam; or measuring the signal-to-interference-plus-noise ratio of at least one reference signal transmitted on at least one transmission beam.

[0018] The measurement report may include at least one of the following: 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.

[0019] At least one reference signal transmitted on at least one transmission beam may include at least one of the following: a synchronization signal block; or a channel state information reference signal.

[0020] The device can be user equipment.

[0021] The base station can be a gNodeB.

[0022] According to one aspect, a method is provided, comprising: receiving from a base station at least one reference signal transmitted on at least one transmission beam; measuring at least one reference signal transmitted on at least one transmission beam; detecting a measurement reporting event, wherein the measurement reporting event is selected among a plurality of measurement reporting events based on at least one of the means of the means to determine the speed of the means or the speed of the means; and transmitting a measurement report to the base station in response to the detected measurement reporting event.

[0023] The method can be performed by a device.

[0024] The method may include: determining at least one of the following: the device's ability to determine the speed of the device, or the speed of the device; and selecting a measurement reporting event from a plurality of measurement reporting events based on at least one of the device's ability to determine the speed of the device or the speed of the device.

[0025] The method may include: transmitting an indication to a base station, the indication indicating at least one of the following: the device's capability to determine the device's speed, or the device's speed; and receiving a measurement reporting event from the base station, the measurement reporting event being selected by the base station from among a plurality of measurement reporting events based on at least one of the device's capability to determine the device's speed or the device's speed.

[0026] The speed of the device includes at least one of the following: translational speed; or rotational speed.

[0027] Translation speed can refer to the distance per unit time (e.g., in meters per second or kilometers per hour) or the number of TX beam switching per unit time (e.g., in TX beam switching per second).

[0028] Rotation speed can refer to angle per unit time (e.g., in degrees per second) or the number of TX beam switching per unit time (e.g., in TX beam switching per second).

[0029] The speed of the device includes at least one of the following: instantaneous speed; or average speed.

[0030] Receiving at least one reference signal transmitted on at least one transmission beam from a base station may include: receiving a reference signal transmitted on a serving transmission beam and at least one reference signal transmitted on at least one candidate transmission beam from a base station; and measuring at least one reference signal transmitted on at least one transmission beam may include: measuring a reference signal transmitted on a serving transmission beam and at least one reference signal transmitted on at least one candidate transmission beam.

[0031] Multiple measurement reporting events may include at least one of the following: a first measurement reporting event, including: a measurement of one of the reference signals in at least one reference signal is superior to a measurement of a reference signal transmitted on the serving transmission beam, wherein the at least one reference signal is transmitted on one of the candidate transmission beams in at least one candidate transmission beam; a second measurement reporting event, including: the measurement of one of the reference signals in at least one reference signal being superior to a measurement of a reference signal transmitted on the serving transmission beam reaches a measurement threshold, wherein the at least one reference signal is transmitted on one of the candidate transmission beams in at least one candidate transmission beam; or a third measurement reporting event, including: a measurement of a reference signal transmitted on K candidate transmission beams is superior to a measurement of a reference signal transmitted on the serving transmission beam, wherein K is equal to or greater than 2.

[0032] When the device cannot determine the speed of the device, a first measurement reporting event can be selected; when the device can determine the speed of the device and the speed of the device is greater than the speed threshold, a second measurement reporting event can be selected; or when the device can determine the speed of the device and the speed of the device is less than the speed threshold, a third measurement reporting event can be selected.

[0033] A first measurement reporting event can be selected when the device can determine the speed of the device and the speed of the device is lower than a first speed threshold; a third measurement reporting event can be selected when the device can determine the speed of the device and the speed of the device is greater than the first speed threshold and lower than a second speed threshold; or a second measurement reporting event can be selected when the device can determine the speed of the device and the speed of the device is greater than the second speed threshold.

[0034] The method may include receiving at least one of a measurement threshold, a speed threshold, a first speed threshold, or a second speed threshold from a base station.

[0035] The speed threshold, the first speed threshold, or the second speed threshold can be received via radio resource control signaling.

[0036] Measuring at least one reference signal transmitted on at least one transmission beam may include at least one of the following: measuring the reference signal received power of at least one reference signal transmitted on at least one transmission beam; measuring the reference signal received quality of at least one reference signal transmitted on at least one transmission beam; or measuring the signal-to-interference-plus-noise ratio of at least one reference signal transmitted on at least one transmission beam.

[0037] The measurement report may include at least one of the following: 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.

[0038] At least one reference signal transmitted on at least one transmission beam may include at least one of the following: a synchronization signal block; or a channel state information reference signal.

[0039] The device can be user equipment.

[0040] The base station can be a gNodeB.

[0041] According to one aspect, an apparatus is provided, comprising a circuit system configured to perform the following operations: 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 at least one transmission beam; detecting a measurement reporting event, wherein the measurement reporting event is selected from a plurality of measurement reporting events based on at least one of the apparatus's ability to determine the speed of the apparatus or the speed of the apparatus; and transmitting a measurement report to the base station in response to the detected measurement reporting event.

[0042] According to one aspect, an apparatus is provided, comprising at least one processor and at least one memory storing instructions, the instructions, when executed by the at least one processor, causing the apparatus to at least: receive from a base station at least one reference signal transmitted on at least one transmission beam; measure at least one reference signal transmitted on at least one transmission beam; detect a measurement reporting event, wherein the measurement reporting event is selected among a plurality of measurement reporting events based on at least one of the apparatus's ability to determine the speed of the apparatus or the speed of the apparatus; and transmit a measurement report to the base station in response to the detected measurement reporting event.

[0043] According to one aspect, a computer program is provided, including computer-executable code, which, when run on at least one processor, is 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 among a plurality of measurement reporting events based on at least one of the device's ability to determine the speed of the device or the speed of the device; and transmitting a measurement report to the base station in response to the detected measurement reporting event.

[0044] According to one aspect, an apparatus is provided, comprising: means for receiving an indication from a user equipment, the indication being for indicating at least one of: the user equipment's capability to determine the speed of the user equipment, or the speed of the user equipment; means for selecting a measurement reporting event from a plurality of measurement reporting events based on at least one of the user equipment's capability to determine the speed of the user equipment or the speed of the user equipment; and means for transmitting an indication to the user equipment for the measurement reporting event, the measurement reporting event being selected by the means.

[0045] The device can be a base station.

[0046] The base station can be a gNodeB.

[0047] According to one aspect, a method is provided, comprising: receiving an indication from a user equipment, the indication indicating at least one of: the user equipment's capability to determine the speed of the user equipment, or the speed of the user equipment; selecting a measurement reporting event from a plurality of measurement reporting events based on at least one of the user equipment's capability to determine the speed of the user equipment or the speed of the user equipment; and transmitting an indication to the user equipment for the measurement reporting event.

[0048] The method can be performed by a device.

[0049] The device can be a base station.

[0050] The base station can be a gNodeB.

[0051] According to one aspect, an apparatus is provided, comprising a circuit system configured to perform the following operations: receiving an indication from a user equipment, the indication indicating at least one of: the user equipment's capability to determine the speed of the user equipment, or the speed of the user equipment; selecting a measurement reporting event from a plurality of measurement reporting events based on at least one of the user equipment's capability to determine the speed of the user equipment or the speed of the user equipment; and transmitting an indication to the user equipment for the measurement reporting event.

[0052] According to one aspect, an apparatus is provided, comprising at least one processor and at least one memory storing instructions, the instructions, when executed by the at least one processor, causing the apparatus to at least: receive an indication from a user equipment, the indication indicating at least one of: the user equipment's capability to determine the speed of the user equipment, or the speed of the user equipment; select a measurement reporting event from a plurality of measurement reporting events based on at least one of the user equipment's capability to determine the speed of the user equipment or the speed of the user equipment; and transmit the indication for the measurement reporting event to the user equipment.

[0053] According to one aspect, a computer program is provided, including computer-executable code, which, when run on at least one processor, is configured to perform: receiving an instruction from a user equipment, the instruction indicating at least one of: the user equipment's capability to determine the speed of the user equipment, or the speed of the user equipment; selecting a measurement reporting event from a plurality of measurement reporting events based on at least one of the user equipment's capability to determine the speed of the user equipment or the speed of the user equipment; and transmitting an instruction to the user equipment for the measurement reporting event.

[0054] According to one aspect, a computer-readable medium is provided, including program instructions stored thereon for performing at least one of the methods described above.

[0055] According to one aspect, a non-transitory computer-readable medium is provided, including program instructions stored thereon for performing at least one of the methods described above.

[0056] According to one aspect, a non-volatile tangible storage medium is provided, including program instructions stored thereon for performing at least one of the methods described above.

[0057] Many different aspects have been described above. It should be understood that additional aspects can be provided by combining any two or more of the aspects described above.

[0058] Various other aspects are also described in the following detailed description and the appended claims.

[0059] List of abbreviations AF: Application Functions AMF: Access and Mobility Management Function AUSF: Authentication Server Function BS: Base Station CSI RS: Channel State Information Reference Signal CU: Centralized Unit DU: Distributed Unit gNB: gNodeB IoT: Internet of Things Kmph: kilometers per hour L1: Layer 1 MS: Mobile Station MTC: Machine-Type Communication NEF: Network Exposure Function NF: Network Functions NR: New Radio NRF: Network Repository Functionality PDU: Packet Data Unit RAM: Random Access Memory RAN: Radio Access Network ROM: Read-Only Memory RRC: Radio Resource Signalling RS: Reference signal RSRP: Reference Signal Received Power RSRQ: Reference Signal Reception Quality RX: Receive SINR: Signal-to-Interference-plus-Noise Ratio SSB: Synchronization Signal Block TX: Transmission UDM: Unified Data Management UDR: Unified Data Repository UE: User Equipment UPF: User-Face Functionality 3GPP: Third Generation Partnership Project 3GS: 3G system 5G: Fifth Generation 5GC: 5G Core Network 5GS: 5G system. Attached Figure Description

[0060] Embodiments will now be described by way of example only with reference to the accompanying drawings, in which: Figure 1 A schematic representation of an example of a 5G system is shown; Figure 2 A schematic diagram of an example control device is shown; Figure 3 A schematic representation of an example of a user device is shown; Figure 4 A schematic diagram illustrating examples of the first, second, and third phases of the beam management process is shown. Figure 5a A signaling diagram illustrating an example of the process for transmitting measurement reports is shown; Figure 5b A signaling diagram illustrating another example of a process for transmitting measurement reports is shown; Figure 6 A bar graph showing the ratio of the number of non-periodic measurement reports transmitted to the number of periodic or semi-periodic measurements triggered by measurement reporting events when the measurement reporting events are the first, second, and third measurement reporting events and the translation speeds are 3 kmph and 120 kmph. Figure 7 The bar chart shows the data throughput of aperiodic measurement report transmissions triggered by measurement reporting events when the measurement reporting events are the first measurement reporting event, the second measurement reporting event, and the third measurement reporting event, and when the user equipment has poor channel conditions (i.e., cell edge user equipment or the 5th percentile) and median channel conditions (i.e., cell median user equipment or the 50th percentile). Figure 8 A block diagram of a method for transmitting measurement reports is shown; Figure 9 A block diagram of a method for transmitting indications of measurement reporting events is shown; and Figure 10 A schematic diagram of a non-volatile memory medium 1000 is shown, which stores instructions that allow the processor to execute when the processor performs the instructions. Figure 8 or Figure 9 One or more steps of the method. Detailed Implementation

[0061] In the following explanation, certain embodiments are described with reference to communication devices capable of communicating via wireless communication systems (e.g., cellular systems or mobile communication systems) serving such communication devices. Before explaining the exemplary embodiments in detail, refer to... Figure 1 , Figure 2 and Figure 3 A brief explanation of some general principles of wireless communication systems, their access systems, and communication equipment is provided to aid in understanding the underlying technology of the described examples. In the following description, the terms communication equipment and user equipment are used interchangeably.

[0062] Figure 1 A schematic diagram of a 5G system (5GS) is shown.

[0063] 5GS can include multiple Public Land Mobile Networks (PLMNs). Each PLMN can include User Equipment (UE), a Radio Access Network (RAN) including a 5G (Radio) Access Network (RAN), a 5G Core Network (5GC), one or more Application Functions (AFs), and one or more Data Networks (DNs).

[0064] A 5G RAN may include one or more base stations. A base station may be an evolved NodeB (eNB) or a gNodeB (gNB). A gNB may include distributed units connected to one or more centralized units.

[0065] 5GC can include Unified Data Repository (UDR), Network Exposure Function (NEF), Network Repository Function (NRF), User Data Management (UDM), Short Message Service Function (SMSF), Access and Mobility Management Function (AMF), Authentication Server Function (AUSF), Session Management Function (SMF), and User Plane Function (UPF).

[0066] Figure 2 It shows the control Figure 1An example of a control device 200 for the functions of the RAN shown. The control device 200 may include at least one random access memory (RAM) 211a, at least one read-only memory (ROM) 211b, at least one processor 212, 213, and an input / output interface 214. At least one processor 212, 213 may be coupled to RAM 211a and ROM 211b. At least one processor 212, 213 may be configured to execute appropriate software code 215. For example, software code 215 may allow the execution of one or more steps to perform one or more aspects of this disclosure. Software code 215 may be stored in ROM 211b. The control device 200 may be interconnected with another control device 200 that controls another function of the 5G RAN or 5GC. In some embodiments, each RAN includes a control device 200. In alternative embodiments, two or more RANs may share a control device.

[0067] Figure 3 Examples of UE 300 are shown, such as Figure 1 The UE shown is an example. UE 300 is a communication device capable of (or configured to) transmit and receive radio signals. Non-limiting examples include mobile stations (MS) or mobile devices, such as mobile phones or so-called "smartphones," computers equipped with wireless interface cards or other wireless interface facilities (e.g., USB dongles), personal data assistants (PDAs) or tablets equipped with wireless communication capabilities, machine-type communication (MTC) devices, cellular Internet of Things (CIoT) devices, or any combination of these devices. UE 300 may, for example, provide communication for carrying data. Communication may be one or more of voice, email, text messages, multimedia, data, machine data, etc.

[0068] UE 300 can receive signals via air or radio interface 307 through appropriate means for receiving, and can transmit signals via appropriate means for transmitting radio signals. Figure 3 In the diagram, the transceiver device is schematically represented by block 306. The transceiver device 306 may be provided, for example, via a radio section and an associated antenna arrangement. The antenna arrangement may be located inside or outside the mobile device.

[0069] UE 300 may include at least one processor 301, at least one memory ROM 302a, at least one RAM 302b, and other possible components 303 for performing tasks designed to be performed in a software and hardware-assisted manner, including controlling access to and communication with access systems and other communication devices. At least one processor 301 is coupled to RAM 302b and ROM 302a. At least one processor 301 may be configured to execute appropriate software code 308. For example, software code 308 may allow the execution of one or more aspects of this disclosure. Software code 308 may be stored in ROM 302a.

[0070] Processors, storage devices, and other related control devices may be provided on a suitable circuit board and / or in a chipset. This feature is indicated by reference numeral 304. The device may optionally have a user interface, such as a keypad 305, a touch-sensitive screen or touchpad, or a combination thereof. Optionally, depending on the type of device, one or more of a display, speaker, and microphone may be provided.

[0071] The beam management process can refer to the process of aligning the transmit (TX) beam of the BS with the receive (RX) beam of the UE. The beam management process can include three phases: Phase 1 (P1), Phase 2 (P2), and Phase 3 (P3).

[0072] Figure 4 A schematic representation of examples of beam management procedures P1, P2, and P3 performed by the BS and UE is shown. The BS can perform beamforming. The UE can perform beamforming. The UE can operate in frequency range 2 (FR2). The UE can be equipped with multiple antenna panels. The UE can generate a wide RX beam via each antenna panel. The UE can generate multiple narrow RX beams via each antenna panel.

[0073] In P1, the BS can perform a wide TX beam scan from a set of wide TX beams. Each wide TX beam can be associated with a corresponding synchronization signal block (SSB). The SSB can be transmitted sequentially in an SSB burst. The UE can perform a wide RX beam scan from a set of wide RX beams.

[0074] The UE can measure each wide TX beam while using each wide RX beam. The UE can select the widest wide TX beam based on the measurements. Here, the widest wide TX beam is associated with the SSBn. The UE can also select the widest wide RX beam based on the measurements. Here, the widest wide RX beam is generated via the antenna panel facing the BS.

[0075] The UE can determine the strongest TX beam based on measurements. The UE can transmit a measurement report to the BS including an indication of the strongest TX beam. Alternatively, the UE can transmit a measurement report to the BS including measurements. The BS can determine the strongest TX beam relative to the BS based on the measurements.

[0076] In P2, the BS can perform narrow TX beam scanning from a set of narrow TX beams. The narrow TX beams can be quasi-co-located with the wide TX beams selected by the UE in P1. Each narrow TX beam can be associated with a corresponding Channel State Information Reference Signal (CSI RS).

[0077] The UE can measure each narrow TX beam while using the strongest RX beam. Measurements may include Layer 1 (L1) Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), or Signal-to-Interference-plus-Noise Ratio (SINR) measurements. The UE can determine the strongest narrow TX beam based on RSRP, RSRQ, or SINR measurements. The UE can transmit a measurement report to the BS including an indication of the strongest narrow TX beam. Alternatively, the UE can transmit a measurement report to the BS including RSRP, RSRQ, or SINR measurements. The BS can select the strongest narrow TX beam based on RSRP, RSRQ, or SINR measurements. Here, the strongest narrow TX beam is related to CSI RS3 (i.e., Figure 4 It is associated with CSI3 in the middle.

[0078] In P3, the BS can repeat the CSI RS transmission on the strongest narrow TX beam. Here, the BS can repeat the CSI RS3 transmission. The UE can perform narrow RX beam scanning from a set of narrow RX beams. The narrow RX beam can be generated via the antenna panel selected by the UE in P1. The UE can perform L1 RSRP or RSRQ measurements for the narrow RX beam. The UE can select the strongest narrow RX beam. The strongest narrow RX beam can be aligned with the strongest narrow TX beam.

[0079] It should be understood that the BS and UE can perform beam management procedures to select the narrow TX beam (serving TX beam) and narrow RX beam (serving RX beam) for communication.

[0080] The BS and UE can then perform a beam management procedure to select a narrow TX beam (candidate TX beam) and a narrow RX beam (candidate RX beam) for communication, replacing the previously selected narrow TX beam (serving TX beam) and the previously selected narrow RX beam (serving RX beam).

[0081] In P1 or P2, the UE can periodically or semi-periodically (i.e., quasi-periodicly) measure wide or narrow TX beams.

[0082] The UE can transmit measurement reports periodically or semi-periodically. High periodicity allows for a complete and accurate understanding of UE or channel conditions and optimizes beam switching. However, high periodicity can increase the consumption of uplink resources used for transmitting measurement reports and can increase beam "ping-pong".

[0083] Alternatively, the UE can transmit measurement reports aperiodically (e.g., when a measurement reporting event is detected). In this way, less uplink resources can be used for measurement report transmission, and more uplink resources can be used for data transmission, which can improve data throughput and reduce beam "ping-pong".

[0084] In this disclosure, the terms “measurement reporting event”, “measurement event”, “reporting event” or “event” are used interchangeably.

[0085] One or more aspects of this disclosure relate to configuring a UE that can transmit a measurement report upon detecting a measurement reporting event, wherein the measurement event is selected among multiple measurement events based on at least one of the UE's ability to determine its speed (i.e., whether it can or cannot) or the UE's speed (e.g., X kmph). In this way, less uplink resources can be used for measurement report transmission, more uplink resources can be used for data transmission, data throughput can be further improved, and beam "ping-pong" can be further reduced.

[0086] The UE can receive multiple reference signals (RS) transmitted on multiple TX beams from the base station. The UE can periodically or semi-periodically receive multiple reference signals (RS) transmitted on multiple TX beams from the base station. The multiple TX beams may include a serving TX beam and multiple candidate TX beams.

[0087] The serving TX beam may include a wide TX beam associated with an SSB, and multiple candidate TX beams may include multiple wide TX beams associated with multiple SSBs.

[0088] The serving TX beam may include a narrow TX beam associated with a CSI RS, and multiple candidate TX beams may include multiple narrow TX beams associated with multiple CSI RSs.

[0089] The UE can measure the RS transmitted on the serving TX beam and the RS transmitted on multiple candidate TX beams. The UE can measure the RS transmitted on the serving TX beam and the RS transmitted on multiple candidate TX beams periodically or semi-periodically. The UE can filter the measurement of the RS transmitted on the serving TX beam, for example, by using a time filter (e.g., an averaging filter). The UE can also filter the measurement of the RS transmitted on multiple candidate TX beams, for example, by using a time filter (e.g., an averaging filter). In this way, the effects of fast fading can be minimized.

[0090] Measurements of RS transmitted on the serving TX beam and RS transmitted on multiple candidate TX beams may include at least one of power measurements or quality measurements. Power measurements may include a reference signal received power (RSRP) measurement. Quality measurements may include a reference signal received quality (RSRQ) measurement or a signal-to-interference-plus-noise ratio (SINR) measurement.

[0091] The UE can detect measurement reporting events based on measurements of RS transmitted on the serving TX beam and RS transmitted on multiple candidate TX beams. Measurement reporting events can be selected from multiple measurement reporting events based on at least one of the UE's ability to determine the UE's speed or the UE's speed.

[0092] The UE's velocity may include at least one of translational velocity or rotational velocity. Translational velocity may refer to distance per unit time (e.g., expressed in meters per second or kilometers per hour (kmph)) or the number of TX beam switching per unit time (e.g., expressed in TX beam switching per second). Translational velocity may be determined based on measurements of RS transmitted on the serving TX beam and RS transmitted on multiple candidate TX beams (e.g., changes in measurements over a period of time may indicate the Doppler effect). Translational velocity may be determined using an accelerometer.

[0093] Rotational speed can be expressed as angle per unit time (e.g., in degrees per second) or as the number of TX beam switches per unit time (e.g., in TX beam switches per second). Rotational speed can be determined using a gyroscope.

[0094] The speed of the UE may include at least one of instantaneous speed or average speed.

[0095] In one implementation, the UE may determine at least one of the following: the UE's capability to determine its speed, or the UE's speed. The UE may select a measurement reporting event from among multiple measurement reporting events based on at least one of the UE's capability to determine its speed or the UE's speed. The UE's speed can provide an indication that beam switching is required.

[0096] Additionally or alternatively, the UE may determine at least one of the following: the UE's ability to determine whether the antenna panel is covered, or whether the antenna panel is covered. The UE may select a measurement reporting event from multiple measurement reporting events based on at least one of the UE's ability to determine whether the antenna panel is covered (i.e., capable or incapable) or whether the antenna panel is covered (i.e., covered or uncovered). Whether the antenna panel is covered can provide an indication that beam switching is required.

[0097] In another implementation, the UE may transmit an indication to the base station indicating at least one of the following: the UE's capability to determine its speed, or the UE's speed. Alternatively, the BS may determine the UE's speed. The UE may receive measurement reporting events from the BS, which are selected by the BS from among multiple measurement reporting events based on at least one of the UE's capability to determine its speed or the UE's speed.

[0098] In one implementation, the multiple measurement reporting events may include at least one of a first measurement reporting event, a second measurement reporting event, or a third measurement reporting event.

[0099] The first measurement reporting event (e.g., event 1) may include: the power or quality measurement of the RS transmitted on one of the candidate TX beams (e.g., the best candidate TX beam) is better than the power or quality measurement of the RS transmitted on the serving TX beam.

[0100] The second measurement reporting event (e.g., event 2) may include: the power or quality measurement of the RS transmitted on one of the candidate TX beams (e.g., the best candidate TX beam) is better than the power or quality measurement of the RS transmitted on the serving TX beam by a power or quality measurement threshold (e.g., 3dB).

[0101] The UE can receive power or quality measurement thresholds from the BS, for example, via RRC signaling. The BS can select from multiple power or quality measurement thresholds supported by the UE. The UE can transmit multiple power or quality measurement thresholds supported by the UE to the BS.

[0102] The third measurement reporting event (e.g., event 3) may include: the power or quality measurement of the RS transmitted on the K candidate TX beams (e.g., the K best candidate TX beams) is better than the power or quality measurement of the RS transmitted on the serving TX beam, where K is equal to or greater than 2 (e.g., 4).

[0103] In one implementation, a first reporting event can be selected when the UE cannot determine its speed. A second measurement reporting event can be selected when the UE can determine its speed and its speed is greater than a speed threshold (e.g., 30 km / h or 5 handovers per second). A third measurement reporting event can be selected when the UE can determine its speed and its speed is less than a speed threshold.

[0104] The UE can receive a speed threshold from the BS, for example, via RRC signaling. The speed threshold can be selected by the BS from multiple speed thresholds supported by the UE. The UE can transmit multiple speed thresholds supported by the UE to the BS.

[0105] In another implementation, a first measurement reporting event can be selected when the UE can determine its speed and the speed is below a first speed threshold (e.g., 1 km mph). A third measurement reporting event can be selected when the UE can determine its speed and the speed is above the first speed threshold and below a second speed threshold (e.g., 30 km mph). A second measurement reporting event can be selected when the UE can determine its speed and the speed is above the second speed threshold. The UE can receive the first and second speed thresholds from the BS, for example, via RRC signaling.

[0106] The UE can receive a first speed threshold and a second speed threshold from the BS, for example, via RRC signaling. The first speed threshold and the second speed threshold can be selected by the BS from a plurality of first speed thresholds and second speed thresholds supported by the UE. The UE can transmit the plurality of first speed thresholds and second speed thresholds supported by the UE to the BS.

[0107] The UE can transmit measurement reports to the BS. The UE can transmit measurement reports to the BS non-periodically (i.e., when a measurement reporting event is detected).

[0108] The measurement report may include an indication of at least one RS transmitted on at least one TX beam. For example, the measurement report may indicate an RS transmitted on a serving TX beam. The measurement report may indicate an RS transmitted on a candidate TX beam (e.g., the best candidate TX beam). The measurement report may indicate an RS transmitted on K candidate TX beams (e.g., K best candidate TX beams).

[0109] The measurement report may include indications for at least one measurement associated with at least one RS transmitted on at least one TX beam. For example, the measurement report may indicate a measurement associated with an RS transmitted on a serving TX beam. The measurement report may indicate a measurement associated with an RS transmitted on a candidate TX beam (e.g., the best candidate TX beam). The measurement report may indicate a measurement associated with RS transmitted on K candidate TX beams (e.g., K best candidate TX beams).

[0110] The measurement report may include indications for at least one TX beam. For example, the measurement report may include indications for the serving TX beam. The measurement report may include indications for candidate TX beams (e.g., the best candidate TX beam) or indications for K candidate TX beams (e.g., K best candidate TX beams).

[0111] The BS can select the TX beam based on the measurement report. For example, the BS can select candidate TX beams (e.g., the best candidate TX beam or one of K best candidate TX beams).

[0112] The UE can receive an indication from the BS for the selected TX beam, such as the best candidate TX beam or one of K best candidate TX beams.

[0113] The advantages of the above mechanism are twofold. First, measurement reports are transmitted to the BS aperiodically when needed, rather than periodically or semi-periodically. This reduces measurement report transmission overhead. Second, periodic or semi-periodic measurement report transmission can trigger beam "ping-pong" due to fast fading. Aperiodic measurement report transmission reduces beam "ping-pong" and improves end-user throughput.

[0114] Figure 5a A signaling diagram illustrating an example of the process used to transmit measurement reports is shown.

[0115] The UE can receive multiple RS transmitted on multiple TX beams.

[0116] The UE can measure the RS transmitted on multiple TX beams.

[0117] If the UE cannot determine its speed, the UE can select the first measurement reporting event.

[0118] If the UE can determine its speed and the speed is greater than the speed threshold µ, the UE can choose the second measurement reporting event.

[0119] If the UE can determine its speed and the speed is below the speed threshold µ, the UE can choose a third measurement reporting event.

[0120] The UE can detect selected measurement reporting events based on the measurements of RS transmitted on multiple TX beams.

[0121] The UE can transmit measurement reports to the BS.

[0122] BS can select the TX beam based on the measurement report.

[0123] The UE can receive instructions for the selected TX beam from the BS.

[0124] Figure 5b A signaling diagram illustrating an example of the process used to transmit measurement reports is shown.

[0125] The UE can receive multiple RS transmitted on multiple TX beams.

[0126] The UE can measure the RS transmitted on multiple TX beams.

[0127] If the UE can determine its speed and the speed is below the first speed threshold µ1, the UE can select the first measurement reporting event.

[0128] If the UE can determine its speed and the speed is greater than the first speed threshold µ1 and lower than the second speed threshold µ2, the UE can choose a third measurement reporting event.

[0129] If the UE can determine its speed and the speed is greater than the second speed threshold µ2, the UE can select the second measurement reporting event.

[0130] The UE can detect selected measurement reporting events based on the measurements of RS transmitted on multiple TX beams.

[0131] The UE can transmit measurement reports to the BS.

[0132] BS can select the TX beam based on the measurement report.

[0133] The UE can receive instructions for the selected TX beam from the BS.

[0134] Figure 6 The bar graph shows the ratio between the number of non-periodic measurement report transmissions triggered by measurement reporting events and the number of periodic or semi-periodic measurements when the measurement reporting events are the first, second, and third measurement reporting events and when the translation speed is 3 kmph and 120 kmph.

[0135] The ratio between the number of measurement report transmissions triggered by the first measurement reporting event and the number of periodic or semi-periodic measurements can be reduced by 65% ​​compared to the ratio between the number of periodic or semi-periodic measurement report transmissions and the number of periodic or semi-periodic measurements (assuming that the measurements and measurement report transmissions have the same periodicity).

[0136] When the UE speed increases from 3 kmph to 120 kmph, the ratio between the number of measurement report transmissions triggered by the first measurement reporting event and the number of periodic or semi-periodic measurements can increase by 3% to 5%.

[0137] The ratio between the number of measurement report transmissions triggered by the second measurement reporting event and the number of periodic or semi-periodic measurements can be reduced by 75% compared to the ratio between the number of periodic or semi-periodic measurement report transmissions and the number of periodic or semi-periodic measurements (assuming that the measurements and measurement report transmissions have the same periodicity).

[0138] When the UE speed increases from 3 kmph to 120 kmph, the ratio between the number of measurement report transmissions triggered by the second measurement reporting event and the number of periodic or semi-periodic measurements can increase by 3% to 5%.

[0139] The ratio between the number of measurement report transmissions triggered by a third measurement reporting event and the number of periodic or semi-periodic measurements can be reduced by 90% compared to the ratio between the number of periodic or semi-periodic measurement report transmissions and the number of periodic or semi-periodic measurements (assuming that the measurements and measurement report transmissions have the same periodicity).

[0140] When the UE speed increases from 3 kmph to 120 kmph, the ratio between the number of measurement report transmissions triggered by third measurement reporting events and the number of periodic or semi-periodic measurements can increase by 3% to 5%.

[0141] Figure 7 The diagram shows a bar graph of the data throughput of aperiodic measurement report transmissions triggered by measurement reporting events when the measurement reporting events are the first, second, and third measurement reporting events and when the user equipment has poor channel conditions (i.e., cell edge UE or 5th percentile) and median channel conditions (i.e., cell median UE or 50th percentile).

[0142] The third measurement reporting event can provide the highest data throughput when the UE speed is 3kmph (i.e., low speed) and when the UE has poor channel conditions (i.e., cell edge UE or 5th percentile) or median channel conditions (i.e., cell median UE or 50th percentile).

[0143] The second measurement reporting event can provide the highest data throughput when the UE speed is 120kmph (i.e., high speed) and when the UE has poor channel conditions (i.e., cell edge UE or 5th percentile) or median channel conditions (i.e., cell median UE or 50th percentile).

[0144] The same trend can be observed when the UE has good channel conditions (i.e., the cell center UE or the 95th percentile).

[0145] Figure 8 A block diagram of a method for transmitting measurement reports is shown.

[0146] At step 800, the UE can receive at least one RS transmitted on at least one TX beam from the BS.

[0147] At step 802, the UE can measure at least one RS transmitted on at least one TX beam.

[0148] At step 804, the UE may detect a measurement reporting event, wherein the measurement reporting event is selected from a plurality of measurement reporting events based on at least one of the UE’s ability to determine the UE’s speed or the UE’s speed.

[0149] At step 806, the UE may transmit a measurement report to the BS in response to the detected measurement reporting event.

[0150] Figure 9 A block diagram is shown of a method for transmitting indications of measurement reporting events.

[0151] At step 900, the BS may receive an indication from the UE, the indication being used to indicate at least one of the following: the UE's ability to determine the speed of the UE, or the speed of the UE.

[0152] At step 902, the BS may select a measurement reporting event from among a plurality of measurement reporting events based on at least one of the UE’s ability to determine the UE’s speed or the UE’s speed.

[0153] At step 904, the BS may transmit an indication to the UE for a measurement reporting event, which is selected by the BS.

[0154] Figure 10 A schematic diagram of a non-volatile memory medium 1000 is shown, which stores instructions that, when executed by a processor, allow the processor to perform... Figure 8 or Figure 9 One or more steps of the method.

[0155] Note that although exemplary embodiments have been described above, several changes and modifications can be made to the disclosed solutions without departing from the scope of the invention.

[0156] It should be understood that although the above concepts have been discussed in the context of 5GS, one or more of these concepts can be applied to other cellular systems.

[0157] Therefore, embodiments may vary within the scope of the appended claims. Generally, some embodiments may be implemented in hardware or dedicated circuitry, software, logic, or any combination thereof. For example, some aspects may be implemented in hardware, while others may be implemented in firmware or software that can be executed by a controller, microprocessor, or other computing device, but embodiments are not limited thereto. While various embodiments may be shown and described as block diagrams, flowcharts, or using some other graphical representation, it should be understood that, as non-limiting examples, these blocks, apparatuses, systems, techniques, or methods described herein may be implemented in hardware, software, firmware, dedicated circuitry or logic, general-purpose hardware or controllers or other computing devices, or some combination thereof.

[0158] The embodiments can be implemented by computer software stored in memory and executable by at least one data processor of the entity concerned, by hardware, or by a combination of software and hardware. Furthermore, it should be noted in this regard that, for example... Figure 8 or Figure 9 Any process within the software can represent program steps, interconnected logic circuits, blocks, and functions, or combinations of program steps with logic circuits, blocks, and functions. Software can be stored on physical media such as memory chips or memory blocks implemented within a processor, magnetic media such as hard disks or floppy disks, and optical media such as DVDs and their data variants, CDs, etc.

[0159] The memory can be of any type suitable for the local technical environment and can 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. As a non-limiting example, the data processor can be of any type suitable for the local technical environment and can include one or more of general-purpose computers, special-purpose computers, microprocessors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), gate-level circuits, and processors based on multi-core processor architectures.

[0160] Alternatively or additionally, some embodiments may be implemented using circuitry. The circuitry may be configured to perform one or more of the previously described functions and / or method steps. The circuitry may be provided in the base station and / or user equipment.

[0161] As used in this application, the term "circuit" may refer to one, more, or all of the following: (a) Hardware circuits only (such as analog and / or digital circuits only); (b) A combination of hardware circuitry and software, for example: (i) A combination of (multiple) analog hardware circuits and / or (multiple) digital hardware circuits with software / firmware; and (ii) Any part of a plurality of hardware processors having software (including a plurality of digital signal processors), software, and a plurality of memories, which work together to enable a device such as a communication device or base station to perform the various functions previously described; and (c) (Multiple) hardware circuits and / or (multiple) processors, such as (multiple) microprocessors or a portion thereof, which require software (e.g., firmware) to operate, but may be absent when the software is not required to operate.

[0162] This definition of "circuit" applies to all uses of the term "component" in this application, including its use in any claim. As another example, as used herein, the term "circuit" also covers only a hardware circuit or processor (or multiple processors) or a portion of a hardware circuit or processor and its accompanying software and / or firmware implementation. The term "circuit" also covers, for example, integrated devices.

[0163] The foregoing description provides a complete and informative description of some embodiments through exemplary and non-limiting examples. However, various modifications and adjustments will become apparent to those skilled in the art when the foregoing description is read in conjunction with the accompanying drawings and the appended claims. Nevertheless, all such and similar modifications to this teaching will still fall within the scope defined by the appended claims.

Claims

1. An apparatus comprising: A component for receiving from a base station at least one reference signal transmitted on at least one transmission beam; A component for measuring the at least one reference signal transmitted on the at least one transmission beam; A component for detecting measurement reporting events, wherein the measurement reporting event is selected from a plurality of measurement reporting events based on at least one of the device's ability to determine the speed of the device or the speed of the device; as well as A component for transmitting a measurement report to the base station in response to the detected measurement reporting event.

2. The apparatus of claim 1, wherein the apparatus comprises: Components for determining at least one of the following: the device for determining the capability of the device to determine the speed of the device, or the speed of the device; as well as A component for selecting a measurement reporting event from among a plurality of measurement reporting events based on at least one of the device's capability to determine the speed of the device or the speed of the device.

3. The apparatus of claim 1, wherein the apparatus comprises: A component for transmitting an indication to the base station, the indication indicating at least one of the following: the device's capability to determine the speed of the device, or the speed of the device; as well as Components for receiving measurement reporting events from the base station, the measurement reporting events being selected by the base station from among the plurality of measurement reporting events based on at least one of the device's capability to determine the speed of the device or the speed of the device.

4. The device according to any one of claims 1 to 3, wherein the speed of the device comprises at least one of the following: Translation speed; or Rotational speed.

5. The apparatus of claim 4, wherein the speed of the apparatus comprises at least one of the following: Instantaneous speed; or Average speed.

6. The apparatus according to any one of claims 1 to 5, wherein the component for receiving from the base station the at least one reference signal transmitted on the at least one transmission beam comprises: A component 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. as well as The component for measuring the at least one reference signal transmitted on the at least one transmission beam includes: A component 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.

7. The apparatus of claim 6, wherein the plurality of measurement reporting events includes at least one of the following: The first measurement reporting event includes: The measurement of one of the at least one reference signal is superior to the measurement of the reference signal transmitted on the serving transmission beam, wherein the at least one reference signal is transmitted on one of the at least one candidate transmission beams; The second measurement reporting event includes: a measurement of one of the at least one reference signal is superior to a measurement of the reference signal transmitted on the serving transmission beam by reaching a measurement threshold, wherein the at least one reference signal is transmitted on one of the at least one candidate transmission beams; or The third measurement reporting event includes: the measurement of the reference signal transmitted on K candidate transmission beams is better than the measurement of the reference signal transmitted on the serving transmission beam, where K is equal to or greater than 2.

8. The apparatus of claim 7, wherein the first measurement reporting event is selected when the apparatus cannot determine the speed of the apparatus; The second measurement reporting event is selected when the device is able to determine the speed of the device and the speed of the device is greater than a speed threshold; or The third measurement reporting event is selected when the device is able to determine the speed of the device and the speed of the device is lower than the speed threshold.

9. The apparatus of claim 7, wherein the first measurement reporting event is selected when the apparatus is able to determine the speed of the apparatus and the speed of the apparatus is below a first speed threshold; The third measurement reporting event is selected when the device is able to determine its speed and the speed is greater than the first speed threshold and lower than the second speed threshold; or The second measurement reporting event is selected when the device is able to determine the speed of the device and the speed of the device is greater than the second speed threshold.

10. The apparatus according to claim 8, wherein, The device includes: A component for receiving at least one of a measurement threshold, the speed threshold, the first speed threshold, or the second speed threshold from the base station.

11. The apparatus according to any one of claims 1 to 10, wherein measuring the at least one reference signal transmitted on the at least one transmission beam comprises at least one of the following: Measure the reference signal received power of the at least one reference signal transmitted on the at least one transmission beam; Measure the reference signal reception quality of the at least one reference signal transmitted on the at least one transmission beam; or The signal-to-interference-plus-noise ratio of the at least one reference signal transmitted on the at least one transmission beam is measured.

12. The apparatus according to any one of claims 1 to 11, wherein the measurement report comprises at least one of the following: Indication for at least one reference signal transmitted on at least one transmission beam; An indication of at least one measurement, said at least one measurement being associated with at least one reference signal transmitted on at least one transmission beam; or The indication refers to at least one transmission beam, which is associated with at least one reference signal transmitted on the at least one transmission beam.

13. The apparatus according to any one of claims 1 to 12, wherein the at least one reference signal transmitted on the at least one transmission beam comprises at least one of the following: Synchronization signal block; or Channel state information reference signal.

14. The apparatus according to any one of claims 1 to 13, wherein the apparatus is a user equipment.

15. The apparatus according to any one of claims 1 to 14, wherein the base station is a gNodeB.

16. An apparatus comprising: A component for receiving an indication from a user equipment, the indication being for indicating at least one of the following: the user equipment's ability to determine the speed of the user equipment, or the speed of the user equipment; A component for selecting a measurement reporting event from a plurality of measurement reporting events based on at least one of the user equipment's ability to determine the speed of the user equipment or the speed of the user equipment; as well as A component for transmitting an indication to the user equipment for the measurement reporting event, the measurement reporting event being selected by the device.

17. The apparatus of claim 16, wherein the apparatus is a base station.

18. The apparatus of claim 17, wherein the base station is a gNodeB.

19. A method comprising: Receive at least one reference signal transmitted on at least one transmission beam from the base station; Measure the at least one reference signal transmitted on the at least one transmission beam; Detection of measurement reporting events, wherein the measurement reporting event is selected from a plurality of measurement reporting events based on at least one of the device's ability to determine the speed of the device or the speed of the device; and In response to the detected measurement reporting event, a measurement report is transmitted to the base station.

20. A method comprising: Receive an instruction from the user equipment, the instruction being used to indicate at least one of the following: the user equipment's ability to determine the speed of the user equipment, or the speed of the user equipment; Based on at least one of the user equipment's ability to determine the speed of the user equipment or the speed of the user equipment, a measurement reporting event is selected from a plurality of measurement reporting events; as well as Transmit an instruction for the measurement reporting event to the user equipment.

21. A computer-readable medium comprising instructions that, when executed by one or more processors, cause the one or more processors to perform the steps of the method of claim 19 or claim 20.

22. An apparatus comprising: At least one processor and at least one memory storing instructions, said instructions, when executed by said at least one processor, cause the device to perform at least the following: Receive at least one reference signal transmitted on at least one transmission beam from the base station; Measure the at least one reference signal transmitted on the at least one transmission beam; Detection of measurement reporting events, wherein the measurement reporting event is selected from a plurality of measurement reporting events based on at least one of the device's ability to determine the speed of the device or the speed of the device; and In response to the detected measurement reporting event, a measurement report is transmitted to the base station.

23. An apparatus comprising: At least one processor and at least one memory storing instructions, said instructions, when executed by said at least one processor, cause the device to perform at least the following: Receive an instruction from the user equipment, the instruction being used to indicate at least one of the following: the user equipment's ability to determine the speed of the user equipment, or the speed of the user equipment; Based on at least one of the user equipment's ability to determine the speed of the user equipment or the speed of the user equipment, a measurement reporting event is selected from a plurality of measurement reporting events; as well as Transmit an instruction for the measurement reporting event to the user equipment.

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