Devices and methods for communication
By configuring terminal devices to generate measurement reports based on specific relationships between candidate cells and RS resources, the solution addresses the limitations of existing mobility management systems, enhancing network performance and resource utilization.
Patent Information
- Application Number
- PCT/CN2024/105589
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2026-01-22
AI Technical Summary
Existing wireless communication technologies face challenges in efficiently managing mobility by accurately configuring and reporting measurement results from user equipment (UE) to network devices, particularly in Rel-19 mobility enhancements, due to limitations in L1 measurements and the need for enhanced flexibility in reporting configurations.
The solution involves a terminal device that receives configurations from a network device to generate and transmit measurement reports based on specific relationships between the number of candidate cells and RS resources to be measured, using RRC signaling and MAC CE to manage the selection and activation of measurement resources, ensuring accurate and flexible reporting.
This approach enhances mobility management by improving the accuracy and flexibility of measurement reporting, enabling better network performance and resource utilization through coordinated UE and network device interactions.
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Figure CN2024105589_22012026_PF_FP_ABST
Abstract
Description
DEVICES AND METHODS FOR COMMUNICATION
[0001] FIELDS
[0002] Example embodiments of the present disclosure generally relate to the field of communication techniques and in particular, to devices and methods for measurement reporting.BACKGROUND
[0003] In the wireless communication, user equipment (UE) may be configured to perform measurements on cells / beams / reference signal (RS) resources, and then transmit the measurement results to the network device to assistant the network device to achieve such as mobility management. In Rel-19, mobility enhancements will be specified, especially for the configuring and reporting of the measurements.SUMMARY
[0004] In general, embodiments of the present disclosure provide a solution for measurement reporting.
[0005] In a first aspect, there is provided a terminal device. The terminal device comprises: a processor configured to cause the terminal device to: receive, from a network device, a command indicating at least one of the following: a set of candidate cells to be measured, a set of reference signal (RS) resources to be measured, or an association between a measurement report configuration and at least one RS resource; generate a measurement report based on at least one of the following: a first relationship between a first number of candidate cells to be reported configured by the network device and a second number of candidate cells to be measured determined based on the command; or a second relationship between a third number of RS resources to be reported for a candidate cell configured by the network device and a fourth number of RS resources to be measured for a candidate cell determined based on the command; and transmit the measurement report to the network device.
[0006] In a second aspect, there is provided a terminal device. The terminal device comprises: a processor configured to cause the terminal device to: receive, from a network device, configuration information comprising a set of reporting configurations, the set of reporting configurations comprising at least one of the following: a set of first numbers of candidate cells to be reported, a set of third numbers of reference signal (RS) resources to be reported for a candidate cell, a set of indications of whether a measurement result of a special cell (spCell) is to be reported in a measurement report, or a set of configurations, each configuration comprising at least one of the following: a first number, a third number or an indication; generate a measurement report based on a reporting configuration determined from the set of reporting configurations based on at least one of the following: a first number of the set of first numbers indicated by the network device, a third number of the set of third numbers indicated by the network device, an indication of the set of indications indicated by the network device, an identity of a configuration of the set of configurations indicated by the network device, a set of candidate cells to be measured indicated by the network device, a set of reference signal (RS) resources to be measured indicated by the network device, or a set of RS resources to be measured for a candidate cell indicated by the network device; and transmit the measurement report to the network device.
[0007] In a third aspect, there is provided a terminal device. The terminal device comprises: a processor configured to cause the terminal device to: receive, from a network device, at least one configuration indicating a plurality of reference signal (RS) resources, each RS resource being associated with a first number of candidate cells to be reported and / or a third number of RS resources to be reported for a candidate cell; receive, from a network device, a command indicating an association between a measurement report configuration and an RS resource of the plurality of RS resources; and generate, by using the measurement report configuration, a measurement report based on a first number and / or a third number associated with the RS resource; and transmit the measurement report to the network device.
[0008] In a fourth aspect, there is provided a terminal device. The terminal device comprises: a processor configured to cause the terminal device to: receive, from a network device, configuration information of at least one measurement report configuration, each measurement report configuration indicating at least one of the following: a plurality of candidate cells, or a plurality of reference signal (RS) resources; receive, from the network device, a command indicating at least one of the following: a set of candidate cells to be measured, or a set of reference signal (RS) resources to be measured; perform at least one of the following: applying the command to a first measurement report configuration of the at least one measurement report configurationēwherein at least part of the set of candidate cells are comprised in the plurality of candidate cells of the first measurement report configuration and / or at least part of the set of RS resources are comprised in the plurality of RS resources of the first measurement report configuration; or stopping measurements and / or reporting on a second measurement report configuration of the at least one measurement report configuration, wherein at least part of the set of candidate cells are not comprised in the plurality of candidate cells of the second measurement report configuration and / or at least part of the set of RS resources are not comprised in the plurality of RS resources of the second measurement report configuration.
[0009] In a fifth aspect, there is provided a network device. The network device comprises: a processor configured to cause the network device to: transmit, to a terminal device, a command indicating at least one of the following: a set of candidate cells to be measured, a set of reference signal (RS) resources to be measured, or an association between a measurement report configuration and at least one RS resource; receive, from the terminal device, a measurement report generated by the terminal device based on at least one of the following: a first relationship between a first number of candidate cells to be reported configured by the network device and a second number of candidate cells to be measured determined based on the command; or a second relationship between a third number of RS resources to be reported for a candidate cell configured by the network device and a fourth number of RS resources to be measured for a candidate cell determined based on the command.
[0010] In a sixth aspect, there is provided a network device. The network device comprises: a processor configured to cause the network device to: transmit, to a terminal device, configuration information comprising a set of reporting configurations, the set of reporting configurations comprising at least one of the following: a set of first numbers of candidate cells to be reported, a set of third numbers of reference signal (RS) resources to be reported for a candidate cell, a set of indications of whether a measurement result of a special cell (spCell) is to be reported in a measurement report, or a set of configurations, each configuration comprising at least one of the following: a first number, a third number or an indication; receive, from the terminal device a measurement report generated based on a reporting configuration determined from the set of reporting configurations based on at least one of the following: a first number of the set of first numbers indicated by the network device, a third number of the set of third numbers indicated by the network device, an indication of the set of indications indicated by the network device, an identity of a configuration of the set of configurations indicated by the network device, a set of candidate cells to be measured indicated by the network device, a set of reference signal (RS) resources to be measured indicated by the network device, or a set of RS resources to be measured for a candidate cell indicated by the network device.
[0011] In a seventh aspect, there is provided a network device. The network device comprises: a processor configured to cause the network device to: transmit, to a terminal device, at least one configuration indicating a plurality of reference signal (RS) resources, each RS resource being associated with a first number of candidate cells to be reported and / or a third number of RS resources to be reported for a candidate cell; transmit, to the terminal device, a command indicating an association between a measurement report configuration and an RS resource of the plurality of RS resources; and receive, from the terminal device, a measurement report generated by using the measurement report configuration and based on a first number and / or a third number associated with the RS resource.
[0012] In an eighth aspect, there is provided a communication method performed by a terminal device. The method comprises: receiving, from a network device, a command indicating at least one of the following: a set of candidate cells to be measured, a set of reference signal (RS) resources to be measured, or an association between a measurement report configuration and at least one RS resource; generating a measurement report based on at least one of the following: a first relationship between a first number of candidate cells to be reported configured by the network device and a second number of candidate cells to be measured determined based on the command; or a second relationship between a third number of RS resources to be reported for a candidate cell configured by the network device and a fourth number of RS resources to be measured for a candidate cell determined based on the command; and transmitting the measurement report to the network device.
[0013] In a ninth aspect, there is provided a communication method performed by a terminal device. The method comprises: receiving, from a network device, configuration information comprising a set of reporting configurations, the set of reporting configurations comprising at least one of the following: a set of first numbers of candidate cells to be reported, a set of third numbers of reference signal (RS) resources to be reported for a candidate cell, a set of indications of whether a measurement result of a special cell (spCell) is to be reported in a measurement report, or a set of configurations, each configuration comprising at least one of the following: a first number, a third number or an indication; generating a measurement report based on a reporting configuration determined from the set of reporting configurations based on at least one of the following: a first number of the set of first numbers indicated by the network device, a third number of the set of third numbers indicated by the network device, an indication of the set of indications indicated by the network device, an identity of a configuration of the set of configurations indicated by the network device, a set of candidate cells to be measured indicated by the network device, a set of reference signal (RS) resources to be measured indicated by the network device, or a set of RS resources to be measured for a candidate cell indicated by the network device; and transmitting the measurement report to the network device.
[0014] In a tenth aspect, there is provided a communication method performed by a terminal device. The method comprises: receiving, from a network device, at least one configuration indicating a plurality of reference signal (RS) resources, each RS resource being associated with a first number of candidate cells to be reported and / or a third number of RS resources to be reported for a candidate cell; receiving, from a network device, a command indicating an association between a measurement report configuration and an RS resource of the plurality of RS resources; and generating, by using the measurement report configuration, a measurement report based on a first number and / or a third number associated with the RS resource; and transmitting the measurement report to the network device.
[0015] In an eleventh aspect, there is provided a communication method performed by a terminal device. The method comprises: receiving, from a network device, configuration information of at least one measurement report configuration, each measurement report configuration indicating at least one of the following: a plurality of candidate cells, or a plurality of reference signal (RS) resources; receiving, from the network device, a command indicating at least one of the following: a set of candidate cells to be measured, or a set of reference signal (RS) resources to be measured; performing at least one of the following: applying the command to a first measurement report configuration of the at least one measurement report configurationēwherein at least part of the set of candidate cells are comprised in the plurality of candidate cells of the first measurement report configuration and / or at least part of the set of RS resources are comprised in the plurality of RS resources of the first measurement report configuration; or stopping measurements and / or reporting on a second measurement report configuration of the at least one measurement report configuration, wherein at least part of the set of candidate cells are not comprised in the plurality of candidate cells of the second measurement report configuration and / or at least part of the set of RS resources are not comprised in the plurality of RS resources of the second measurement report configuration.
[0016] In a twelfth aspect, there is provided a communication method performed by a network device. The method comprises: transmitting, to a terminal device, a command indicating at least one of the following: a set of candidate cells to be measured, a set of reference signal (RS) resources to be measured, or an association between a measurement report configuration and at least one RS resource; receiving, from the terminal device, a measurement report generated by the terminal device based on at least one of the following: a first relationship between a first number of candidate cells to be reported configured by the network device and a second number of candidate cells to be measured determined based on the command; or a second relationship between a third number of RS resources to be reported for a candidate cell configured by the network device and a fourth number of RS resources to be measured for a candidate cell determined based on the command.
[0017] In a thirteenth aspect, there is provided a communication method performed by a network device. The method comprises: transmitting, to a terminal device, configuration information comprising a set of reporting configurations, the set of reporting configurations comprising at least one of the following: a set of first numbers of candidate cells to be reported, a set of third numbers of reference signal (RS) resources to be reported for a candidate cell, a set of indications of whether a measurement result of a special cell (spCell) is to be reported in a measurement report, or a set of configurations, each configuration comprising at least one of the following: a first number, a third number or an indication; receiving, from the terminal device a measurement report generated based on a reporting configuration determined from the set of reporting configurations based on at least one of the following: a first number of the set of first numbers indicated by the network device, a third number of the set of third numbers indicated by the network device, an indication of the set of indications indicated by the network device, an identity of a configuration of the set of configurations indicated by the network device, a set of candidate cells to be measured indicated by the network device, a set of reference signal (RS) resources to be measured indicated by the network device, or a set of RS resources to be measured for a candidate cell indicated by the network device.
[0018] In a fourteenth aspect, there is provided a communication method performed by a network device. The method comprises: transmitting, to a terminal device, at least one configuration indicating a plurality of reference signal (RS) resources, each RS resource being associated with a first number of candidate cells to be reported and / or a third number of RS resources to be reported for a candidate cell; transmitting, to the terminal device, a command indicating an association between a measurement report configuration and an RS resource of the plurality of RS resources; and receiving, from the terminal device, a measurement report generated by using the measurement report configuration and based on a first number and / or a third number associated with the RS resource.
[0019] In a fifteenth aspect, there is provided a computer readable medium having instructions stored thereon, the instructions, when executed on at least one processor, causing the at least one processor to carry out the method according to the eighth, ninth, tenth, eleventh, twelfth, thirteenth, or fourteenth aspect.
[0020] Other features of the present disclosure will become easily comprehensible through the following description.BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Through the more detailed description of some example embodiments of the present disclosure in the accompanying drawings, the above and other objects, features and advantages of the present disclosure will become more apparent, wherein:
[0022] FIG. 1 illustrates an example communication environment in which example embodiments of the present disclosure can be implemented;
[0023] FIGS. 2 illustrate signaling flows of communication in accordance with some example embodiments of the present disclosure;
[0024] FIG. 3 illustrates a flowchart of a communication method implemented at a terminal device according to some example embodiments of the present disclosure;
[0025] FIG. 4 illustrates a flowchart of a communication method implemented at a terminal device according to some example embodiments of the present disclosure;
[0026] FIG. 5 illustrates a flowchart of a communication method implemented at a terminal device according to some example embodiments of the present disclosure;
[0027] FIG. 6 illustrates a flowchart of a communication method implemented at a terminal device according to some example embodiments of the present disclosure;
[0028] FIG. 7 illustrates a flowchart of a communication method implemented at a network device according to some example embodiments of the present disclosure;
[0029] FIG. 8 illustrates a flowchart of a communication method implemented at a network device according to some example embodiments of the present disclosure;
[0030] FIG. 9 illustrates a flowchart of a communication method implemented at a network device according to some example embodiments of the present disclosure;
[0031] FIG. 10 illustrates a simplified block diagram of an apparatus that is suitable for implementing example embodiments of the present disclosure.
[0032] Throughout the drawings, the same or similar reference numerals represent the same or similar element.DETAILED DESCRIPTION
[0033] Principle of the present disclosure will now be described with reference to some example embodiments. It is to be understood that these embodiments are described only for the purpose of illustration and help those skilled in the art to understand and implement the present disclosure, without suggesting any limitation as to the scope of the disclosure. Embodiments described herein can be implemented in various manners other than the ones described below.
[0034] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same mean as commonly understood by one of ordinary skills in the art to which this disclosure belongs.
[0035] As used herein, the term ‘terminal device’ refers to any device having wireless or wired communication capabilities. Examples of the terminal device include, but not limited to, user equipment (UE) , personal computers, desktops, mobile phones, cellular phones, smart phones, personal digital assistants (PDAs) , portable computers, tablets, wearable devices, internet of things (IoT) devices, Ultra-reliable and Low Latency Communications (URLLC) devices, Internet of Everything (IoE) devices, machine type communication (MTC) devices, devices on vehicle for V2X communication where X means pedestrian, vehicle, or infrastructure / network, devices for Integrated Access and Backhaul (IAB) , Space borne vehicles or Air borne vehicles in Non-terrestrial networks (NTN) including Satellites and High Altitude Platforms (HAPs) encompassing Unmanned Aircraft Systems (UAS) , eXtended Reality (XR) devices including different types of realities such as Augmented Reality (AR) , Mixed Reality (MR) and Virtual Reality (VR) , the unmanned aerial vehicle (UAV) commonly known as a drone which is an aircraft without any human pilot, devices on high speed train (HST) , or image capture devices such as digital cameras, sensors, gaming devices, music storage and playback appliances, or Internet appliances enabling wireless or wired Internet access and browsing and the like. The ‘terminal device’ can further have ‘multicast / broadcast’ feature, to support public safety and mission critical, V2X applications, transparent IPv4 / IPv6 multicast delivery, IPTV, smart TV, radio services, software delivery over wireless, group communications and IoT applications. It may also incorporate one or multiple Subscriber Identity Module (SIM) as known as Multi-SIM. The term “terminal device” can be used interchangeably with a UE, a mobile station, a subscriber station, a mobile terminal, a user terminal or a wireless device.
[0036] The term “network device” refers to a device which is capable of providing or hosting a cell or coverage where terminal devices can communicate. Examples of a network device include, but not limited to, a Node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , a next generation NodeB (gNB) , a transmission reception point (TRP) , a remote radio unit (RRU) , a radio head (RH) , a remote radio head (RRH) , an IAB node, a low power node such as a femto node, a pico node, a reconfigurable intelligent surface (RIS) , and the like.
[0037] The terminal device or the network device may have Artificial intelligence (AI) or Machine learning capability. It generally includes a model which has been trained from numerous collected data for a specific function, and can be used to predict some information.
[0038] The terminal or the network device may work on several frequency ranges, e.g., FR1 (e.g., 450 MHz to 6000 MHz) , FR2 (e.g., 24.25GHz to 71GHz) , frequency band larger than 100 GHz as well as Tera Hertz (THz) . It can further work on licensed / unlicensed / shared spectrum. The terminal device may have more than one connection with the network devices under Multi-Radio Dual Connectivity (MR-DC) application scenario. The terminal device or the network device can work on full duplex, flexible duplex and cross division duplex modes.
[0039] The embodiments of the present disclosure may be performed in test equipment, e.g., signal generator, signal analyzer, spectrum analyzer, network analyzer, test terminal device, test network device, channel emulator. In some embodiments, the terminal device may be connected with a first network device and a second network device. One of the first network device and the second network device may be a master node and the other one may be a secondary node. The first network device and the second network device may use different radio access technologies (RATs) . In some embodiments, the first network device may be a first RAT device and the second network device may be a second RAT device. In some embodiments, the first RAT device is eNB and the second RAT device is gNB. Information related with different RATs may be transmitted to the terminal device from at least one of the first network device or the second network device. In some embodiments, first information may be transmitted to the terminal device from the first network device and second information may be transmitted to the terminal device from the second network device directly or via the first network device. In some embodiments, information related with configuration for the terminal device configured by the second network device may be transmitted from the second network device via the first network device. Information related with reconfiguration for the terminal device configured by the second network device may be transmitted to the terminal device from the second network device directly or via the first network device.
[0040] As used herein, the singular forms ‘a’ , ‘an’ and ‘the’ are intended to include the plural forms as well, unless the context clearly indicates otherwise. The term ‘includes’ and its variants are to be read as open terms that mean ‘includes, but is not limited to. ’ The term ‘based on’ is to be read as ‘at least in part based on. ’ The term ‘one embodiment’ and ‘an embodiment’ are to be read as ‘at least one embodiment. ’ The term ‘another embodiment’ is to be read as ‘at least one other embodiment. ’ The terms ‘first, ’ ‘second, ’ and the like may refer to different or same objects. Other definitions, explicit and implicit, may be included below.
[0041] In some examples, values, procedures, or apparatus are referred to as ‘best, ’ ‘lowest, ’ ‘highest, ’ ‘minimum, ’ ‘maximum, ’ or the like. It will be appreciated that such descriptions are intended to indicate that a selection among many used functional alternatives can be made, and such selections need not be better, smaller, higher, or otherwise preferable to other selections.
[0042] As used herein, the term “resource, ” “transmission resource, ” “uplink resource, ” or “downlink resource” may refer to any resource for performing a communication, such as a resource in time domain, a resource in frequency domain, a resource in space domain, a resource in code domain, or any other resource enabling a communication, and the like. In the following, unless explicitly stated, a resource in both frequency domain and time domain will be used as an example of a transmission resource for describing some example embodiments of the present disclosure. It is noted that example embodiments of the present disclosure are equally applicable to other resources in other domains.
[0043] As discussed above, in the wireless communication, UE may be configured to perform measurements on cells / beams / RS resources, and then transmit the measurement results to the network device to assistant the network device to achieve such as mobility management.
[0044] Layer 1 / layer 2 (L1 / L2) triggered mobility (LTM) has been proposed to enable an enhanced mobility management. L1 measurements for LTM procedures are limited to synchronization signal and physical broadcast channel (PBCH) block (SSB) measurements. Expanding L1 measurements to include CSI-RS can address this limitation and can be expected to enable greater throughput on the target cell immediately after cell switch. In view of this, measurements related enhancements for purpose of supporting LTM are expected. Specifically, it is expected that measurement related enhancements may be applicable to Intra-centralized unit (CU) master cell group (MCG) / secondary cell group (SCG) LTM and inter-CU MCG / SCG LTM, and it is also expected to specify necessary components to support event-triggered L1 measurement reporting. Moreover, it is expected to specify support for channel status information-reference signal (CSI-RS) measurements for LTM procedures and enable CSI-RS based beam management, and / or other necessary physical layer operations on candidate cells before LTM.
[0045] For the beam selection for SSB based L1-RSRP measurement report, parameter M may refer to the number of beams to be reported and parameter L may refer to the number of candidate cells to be reported. For the values of M and L, candidate values configured by the radio resource control (RRC) signalling may be: M = 1, 2, 3, 4; and L = 1, 2, 3, 4. It is noted that the maximum value of M*L and combination of M and L is up to UE capability and the common understanding is that L=1 with configuration of inclusion of serving cell is not a typical case.
[0046] Absolute value and differential values may be used for L1-RSRP reporting. Specifically, for absolute Layer 1 reference signal received power (L1-RSRP) , the L1-RSRP value may be quantized to a 7-bit value in the range [-140, -44] dBm with 1dB step size; For differential L1-RSRP, the L1-RSRP value is quantized to a 4-bit value where the differential L1-RSRP value is computed with 2 dB step size from reference L1-RSRP value.
[0047] Further, SSB resource indicator (SSBRI) among configured candidate cells is included for each L1-RSRP report. The bit size of SSBRI is where is the number of configured SSBs in the corresponding resource set for the report. The following format is used for reporting:
[0048] Below is an example IE of LTM-Config.
[0049] Below is an example IE of LTM-Candidate.
[0050] Below is an example IE of LTM-CSI-ResourceConfig.
[0051] Below is an example IE of LTM-CSI-ReportConfig.
[0052] If a UE is configured with an LTM-CSI-ReportConfig and the UE is configured with spCellInclusion, the UE shall report in a single reporting instance nrOfReportedRS-PerCell different SSBRI for the current SpCell and each of the nrOfReportedCells -1 candidate cells. Otherwise, the UE shall report in a single reporting instance nrOfReportedRS-PerCell different SSBRI for each of the nrOfReportedCells candidate cells, where SSBRI k (k ≥ 0) corresponds to the configured (k+1) -th entry of the associated ltm-CSI-SSB-ResourceList in the corresponding LTM-CSI-SSB-ResourceSet. If spCellInclusion is configured, SSB resources in ltm-CSI-SSB-ResourceList associated with the current SpCell are the entries where physical cell identifier (PCI) given by ltm-CandidatePCI and frequency information given by ssbFrequency of the associated candidate cell (given in [ltm-CandidateIdList] ) is equal to the PCI and center frequency of cell-defining SSB of the current special cell (SpCell) .
[0053] In order to enhance the flexibility of reporting, the MAC CE used for activating a set of measurement RSs for LTM measurement report has been introduced. The introduction of MAC CE activating a set of measurement RSs would bring multiple issues, for example, the report type supported by this mechanism, such as, aperiodic only, or periodic / semi-persistent; the content to be updated, such as, candidate cell (s) , the subset of SSBs selected in a CSI resource set, the association between CSI report and CSI resource set.
[0054] Except for the above issues, for an LTM measurement report, the measurement RSs (including candidate cells to be measured and beams per cell to be measured) , the number of candidate cells to report (represented as ‘L’ as discussed above) and the number of beams per cell to report (represented as ‘M’ as discussed above) are configured by the network device using RRC signaling. If MAC CE to update (or select, activate) a set of measurement RSs for LTM is supported, for an LTM measurement report, the configured L or / and M may be invalid. For example, about the L, assuming X1 candidate cells (for measurement) are configured of the LTM measurement report, and the configured L is Y1. If the MAC CE activates X2 out of X1 (X2<X1) configured candidate cells for the LTM measurement report (this means that UE only needs to perform beam measurement for the activated X2 candidate cells) , the configured L (i.e., X1) will be invalid, because the number of cells to report is smaller than the number of cells to measure.
[0055] In view of this, how does UE determine the number of reported (candidate) cells and the number of reported beams per cell needs to be further addressed.
[0056] In the context of the present disclosure, term cell may be interchangeably with bandwidth part (BWP) , downlink (DL) BWP, uplink (UL) BWP, active (DL or UL) BWP, frequency band, frequency range, (DL or UL) component carrier (CC) , CC group, primary cell (PCell) , secondary cell (SCell) , Primary secondary cell (PScell) , special cell (SpCell) , master cell group (MCG) , secondary cell group (SCG) , transmission reception point (TRP) , TRP ID, CORESET pool index; term “candidate cell” may be interchangeably with cell, (LTM) candidate cell / configuration, target cell, serving cell, LTM configuration ID, BWP ID, physical cell identity (PCI) , TRP ID, CORESET pool index. Further, a set of candidate cells may comprise the SpCell or not comprise the SpCell.
[0057] In the context of the present disclosure, term report instance may be interchangeably with (measurement) report instance, (measurement) reporting instance, L1 or layer 3 (L3) (measurement) report instance, L1 or L3 (measurement) reporting instance.
[0058] In the context of the present disclosure, term L1 measurement may be interchangeably with L2 / L3 measurement, measurement. L1 reporting is interchangeably with L2 / L3 reporting, reporting.
[0059] In the context of the present disclosure, term activation may be interchangeably with selection, sub selection, indication; term activate may be interchangeably with indicate, activate and indicate.
[0060] In the context of the present disclosure, term stop may be interchangeably with release, deactivate, drop, omit, skip, pend; term configure may be interchangeably with indicate, activate, provide, trigger, comprise, select, schedule.
[0061] In the context of the present disclosure, term RS may be interchangeably with RS resource, RS resource set, channel measurement resource (CMR) , inference measurement resource (IMR) ; RS may be interchangeably beam, TCI state (ID) , spatial relation, beam pattern, codebook; RS may comprise at least one of CSI-RS or SSB.
[0062] In the context of the present disclosure, term ID may be interchangeably with identity, identifier, indication, indicator, index, flag.
[0063] In the context of the present disclosure, MAC CE or DCI may be interchangeably with activation command, selection command, sub selection command; UE (or NW) may be interchangeably with over the top (OTT) (server) , OAM (operation, administration and maintenance, server) , CN (core network, server) , edge cloud (server) , TRP.
[0064] In the context of the present disclosure, term UE capability (information) may be interchangeably with UL RRC message, UE assistance information (UAI) ; term set may be interchangeably with list, group; term indicated may be interchangeably with activated, selected, configured, determined, scheduled; term when may be interchangeably with if, after; term command may be interchangeably with signaling. L1 command refers to DCI, L2 command refers to MAC CE, L3 command refers to RRC.
[0065] As used herein, measurement report may comprise at least one of: periodic (P) CSI report, semi-persistent (SP) CSI report based on physical uplink control channel (PUCCH) , SP CSI report based on PUSCH, aperiodic (AP) channel status information (CSI) report, event triggered report, UE-initiated or driven report, event triggered and periodic report, CSI report, LTM CSI report.
[0066] As used herein, a measurement result may comprise at least one of the following: beam ID (e.g., CRI, SSBRI, beam index) or beam quality (e.g., RSRP, SINR, difference RSRP, difference SINR) .
[0067] As used herein, “measure a candidate cell” means receive or / and measure RS (s) associated with the candidate cell; “report a candidate cell” means report the L1 / L3 measurement results corresponding to the candidate cell; L1 / L3 measurement results (or beam quality) comprise at least one of L1-reference signal receiving power (RSRP) , L1-interference plus noise ratio (SINR) , RSRP, SINR, reference signal receiving quality (RSRQ) .
[0068] As used herein, a candidate cell or / and RS resource to be measured indicated by a command is interchangeably with at least one of the following: the command activates a candidate cell or / and RS resource (for measurement) ; and / or the command selects a candidate cell or / and RS resource (for measurement) .
[0069] As used herein, CSI-RS may comprise non-zero power (NZP) CSI-RS or / and zero power (ZP) CSI-RS; higher layer parameter refers to an RRC IE (information element) .
[0070] Beam may be interchangeably with (Tx / Rx) beam, beam direction / orientation, RS (e.g., CSI-RS, SSB, SRS) , RS resource, TCI state, QCL RS (e.g., QCL-typeD RS) , measurement RS, measurement RS resource, path-loss RS. Beam can be replaced or represented by beam ID, where the beam ID is interchangeably with (Tx / Rx) beam ID, RS (e.g., CSI-RS, SSB, SRS) ID, RS resource ID (e.g., CRI, SSBRI) , TCI state ID, QCL RS (e.g., QCL-typeD RS) ID, measurement RS ID, measurement RS resource ID, path-loss RS ID. Beam ID may comprise CRI (CSI-RS resource indicator) or / and SSBRI (SSB resource indicator) .
[0071] As used herein, ‘Ais associated with / to B’ may be interchangeably with A / B corresponds to B / A, A / B maps to B / A, A / B comprises B / A, A / B indicates B / A, A / B is determine based on B / A, A / B is applied to / for B / A.
[0072] Principles and implementations of the present disclosure will be described in detail below with reference to the figures.
[0073] Example Environments
[0074] FIG. 1 shows an example communication environment 100 in which example embodi-ments of the present disclosure can be implemented. The communication environment 100 comprises a terminal device 110 and a network device 120.
[0075] In the environment 100, a link from the network device 120 to the terminal device 110 is referred to as a downlink, while a link from the terminal device 110 to the network device 120 is referred to as an uplink. In downlink, the network device is a transmitting (TX) device (or a transmitter) and the terminal device 110 is a receiving (RX) device (or a receiver) . In uplink, the terminal device 110 is a transmitting TX device (or a transmitter) and the network device is a RX device (or a receiver) .
[0076] It is to be understood that the number of devices and their connections shown in FIG. 1 are only for the purpose of illustration without suggesting any limitation. The communication environment 100 may include any suitable number of devices configured to implementing ex-ample embodiments of the present disclosure.
[0077] In some embodiments, the terminal device 110 and the network device 120 may communi-cate with each other via a channel such as a wireless communication channel on an air interface (e.g., Uu interface) . The wireless communication channel may comprise a physical uplink control channel (PUCCH) , a physical uplink shared channel (PUSCH) , a physical random-ac-cess channel (PRACH) , a physical downlink control channel (PDCCH) , a physical downlink shared channel (PDSCH) and a physical broadcast channel (PBCH) . Of course, any other suit-able channels are also feasible.
[0078] The communications in the communication environment 100 may conform to any suitable standards including, but not limited to, Global System for Mobile Communications (GSM) , Long Term Evolution (LTE) , LTE-Evolution, LTE-Advanced (LTE-A) , New Radio (NR) , Wideband Code Division Multiple Access (WCDMA) , Code Division Multiple Access (CDMA) , GSM EDGE Radio Access Network (GERAN) , Machine Type Communication (MTC) and the like. The embodiments of the present disclosure may be performed according to any generation communication protocols either currently known or to be developed in the future. Examples of the communication protocols include, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) communication protocols, 5.5G, 5G-Advanced networks, or the sixth generation (6G) networks.
[0079] Work Principle and Example Signaling for Communication
[0080] Reference is made to FIG. 2, illustrate signaling flows of communication in accordance with some example embodiments of the present disclosure. For ease of discussion, FIG. 2 which will be discussed with reference to FIG. 1, for example, by using the terminal device 110 and the network device 120.
[0081] In the following descriptions, while operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are contained in the above discussions, these should not be construed as limitations on the scope of the present disclosure, but rather as descriptions of features that may be specific to particular embodiments. Certain features that are described in the context of separate embodiments may also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment may also be implemented in multiple embodiments separately or in any suitable sub-combination.
[0082] It is to be understood that the operations at the terminal device 110 and the network device 120 should be coordinated. In other words, the network device 120 and the terminal device 110 should have common understanding about configurations, parameters and so on. Such common understanding may be implemented by any suitable interactions between the network device 120 and the terminal device 110 or both the network device 120 and the terminal device 110 applying the same rule / policy. In the following, although some operations are described from a perspective of the terminal device 110, it is to be understood that the corresponding operations should be performed by the network device 120. Similarly, although some operations are described from a perspective of the network device 120, it is to be understood that the corresponding operations should be performed by the terminal device 110. Merely for brevity, some of the same or similar contents are omitted here.
[0083] In addition, in the following description, some interactions are performed among the terminal device 110 and the network device 120 (such as, exchanging configuration (s) and so on) . It is to be understood that the interactions may be implemented either in one single signaling / message / configuration or multiple signaling / messages / configurations, including system information, radio resource control (RRC) message, downlink control information (DCI) message, uplink control information (UCI) message, media access control (MAC) control element (CE) and so on. The present disclosure is not limited in this regard.
[0084] In the following example embodiments, the UE (i.e., the terminal device) may be provided by the network device with at least one measurement report configuration (e.g., LTM-CSI-ReportConfig) about measurement report (e.g., LTM CSI report) by using such as RRC signaling. Specifically, each measurement report configuration (or measurement report) may be associated with at least one measurement resource configuration (e.g., LTM-ResourceConfig) about measurement resource (e.g., LTM CSI resource) . Further, each measurement resource configuration (or measurement resource) may comprise at least one RS resource set (or CSI resource set, e.g., ltm-CSI-SSB-ResourceList, ltm-CSI-RS-ResourceList, ltm-CSI-RS-ResourceSetList) , and each RS resource in the RS resource set corresponds to a candidate cell (e.g., corresponding ID of candidate cell may be provided by ltm-CandidateIdList) , or each RS resource set corresponds to a candidate cell.
[0085] In the following example embodiments, it may be assumed that a set of candidate cells or a set of beams per candidate cell may be associated with at least one of a configured RS resource set, a configured measurement resource, or a configured measurement report. Where the set of candidate cells is represented by ‘aset of configured candidate cells or configured candidate cell (s) ’ , the set of beams per candidate cell is represented by ‘aset of configured beams per candidate cell or configured beams per candidate cell’ .
[0086] In some cases, UE may receive a MAC CE that updates a set of candidate cells from the network device. Specifically, the MAC CE is mainly used to select (or / and activate, indicate) a set of candidate cells (at least for L1 measurement) . In other words, the MAC CE mainly indicates a set of selected (or / and activated) candidate cells. Further, the set of candidate cells may be selected from a set of configured candidate cells. After receiving the MAC CE, UE may only measure the selected candidate cell (s) in a configured candidate cell (s) , and UE may stop measuring the unselected candidate cell (s) in the configured candidate cell (s) . Merely for a better discussion, such MAC CE may be represented as ‘Candidate cell selection MAC CE’ .
[0087] For the Candidate cell selection MAC CE: for a configured measurement report, based on the candidate cell (s) selected by the Candidate cell selection MAC CE and the configured candidate cell (s) associated with the measurement report, UE may determine a set of candidate cells to be measured in the configured candidate cell (s) associated with the measurement report, for example, the measured candidate cell (s) to be measured may be the overlapping candidate cell (s) between the selected candidate cells indicated by the MAC CE and the configured candidate cells associated with the measurement report. The set of candidate cells to be measured is represented as ‘the measured (or selected) candidate cells associated with the measurement report’ .
[0088] Further, in some other cases, UE may receive a MAC CE that selects (or / and activate) a subset of RS resources in a configured RS resource set. After receiving the MAC CE, UE may only measure the selected RS resource (s) in the configured RS resource set (indicated by the MAC CE) , and UE may stop measuring the unselected RS resource (s) in the configured RS resource set. Merely for a better discussion, such MAC CE may be represented as ‘LTM RS selection MAC CE’ .
[0089] For the LTM RS selection MAC CE: based on the RS resource (s) selected by the LTM RS selection MAC CE, UE can determine the candidate cell (s) and the beam (s) per candidate cell associated with the selected RS resource (s) . Further, for a configured measurement report, based on the determined candidate cell (s) and beam (s) per candidate cell and the configured candidate cell (s) and beam (s) per candidate cell associated with the measurement report, UE may determine a set of candidate cells to be measured in the configured candidate cell (s) associated with the measurement report and a set of beams to be measured per candidate cell in the configured beams per candidate cell. The set of candidate cells to be measured is represented as ‘the measured (or selected) candidate cells associated with the measurement report’ . The set of beams to be measured of a candidate cell is represented as ‘the measured (or selected) beams of a candidate cell associate with the measurement report’ .
[0090] In addition, in some further cases, UE may receive a MAC CE that update the association between a configured measurement report and a configured measurement resource or / and RS resource set. After receiving this MAC CE, UE shall perform the configured measurement report based on the indicated measurement resource or / and RS resource set. Merely for a better discussion, such MAC CE is represented as ‘LTM CSI report association MAC CE’ in this patent.
[0091] For the LTM CSI report association MAC CE: based on the measurement resource or / and RS resource set indicated by the LTM CSI report association MAC CE, UE can determine the candidate cell (s) and the beam (s) per candidate cell associated with the indicated measurement resource or / and RS resource set. Based on the measurement report indicated by the LTM CSI report association MAC CE and above information, UE can determine the candidate cell (s) and the beam (s) to be measured per candidate cell associated with the measurement report. The set of candidate cells to be measured is represented as ‘the measured (or selected) candidate cells associated with the measurement report’ . The set of beams to be measured of a candidate cell is represented as ‘the measured (or selected) beams of a candidate cell associated with the measurement report’ .
[0092] According to some embodiments of the present disclosure, the command (such as, MAC CE as discussed herein) may be applied to multiple measurement reports, resources or RS sets. Such embodiments will be discussed below.
[0093] In operation, the terminal device 110 receives (210) configuration information of at least one measurement report configuration from a network device 120, where each measurement report configuration indicates at least one of the following:
[0094] ● a plurality of candidate cells, or
[0095] ● a plurality of reference signal (RS) resources;
[0096] In the following, the terminal device receive (220) a command from the network device 120, where the command indicating at least one of the following:
[0097] ● a set of candidate cells to be measured, or
[0098] ● a set of reference signal (RS) resources to be measured.
[0099] In some cases, the terminal device 110 applies (230) the command to a first measurement report configuration of the at least one measurement report configuration, wherein at least part of the set of candidate cells are comprised in the plurality of candidate cells of the first measurement report configuration and / or at least part of the set of RS resources are comprised in the plurality of RS resources of the first measurement report configuration.
[0100] In some other case, the terminal device 110 stops (240) measurements and / or reporting on a second measurement report configuration of the at least one measurement report configuration, wherein at least part of the set of candidate cells are not comprised in the plurality of candidate cells of the second measurement report configuration and / or at least part of the set of RS resources are not comprised in the plurality of RS resources of the second measurement report configuration.
[0101] In some embodiments, the terminal device 110 may deactivate the second measurement report configuration, and / or release the second measurement report configuration.
[0102] In some embodiments, in accordance with a determination that all of the set of candidate cells are comprised in the plurality of candidate cells of the first measurement report and / or all of the set of RS resources are comprised in the plurality of RS resources of the first measurement report, the terminal device 110 may apply the command based on a first application timing.
[0103] Accordingly, in some embodiments, in accordance with a determination that part of the set of candidate cells are comprised in the plurality of candidate cells of the first measurement report and / or part of the set of RS resources are comprised in the plurality of RS resources of the first measurement report, the terminal device 110 may apply the command based on a second application timing different from the first application timing.
[0104] In some embodiments, the second application timing is determined based on at least one of the following:
[0105] ● a number of candidate cells of the set of candidate cells which are mot comprised in the plurality of candidate cells, or
[0106] ● a number of RS resources of the set of RS resources which are mot comprised in the plurality of RS resources.
[0107] In some embodiments, the terminal device 110 does not expect at least of the following:
[0108] ● the number of candidate cells to be measured (or selected, activated) indicated by a command is smaller than the configured number of candidate cells to be reported.
[0109] ● the number of RS resources of a candidate cell to be measured (or selected, activated) indicated by a command is smaller than the configured number of RS resources per candidate cell to be reported.
[0110] The command may comprise at least one of the following: a candidate cell selection MAC CE, an LTM RS selection MAC CE, an LTM CSI report association MAC CE, an SP CSI reporting on PUCCH activation / deactivation MAC CE, an Aperiodic CSI trigger state sub selection MAC CE, a DCI that indicates a SP CSI trigger state, or a DCI that indicates an AP CSI trigger state.
[0111] To better understand the above processes, some example embodiments are discussed below.
[0112] As discussed above, the Candidate cell selection MAC CE may indicate at least one of the following information or field:
[0113] ● ID of measurement report, e.g., LTM-CSI-ReportConfigId. This field indicates a configured measurement report that the MAC CE applies.
[0114] ● ID of measurement resource, e.g., LTM-CSI-ResourceConfigId. This field indicates a configured measurement resource that the MAC CE applies.
[0115] ● ID of RS resource set, e.g., LTM-SSB-ResourceSetId, LTM-CSI-RS-ResourceSetId. This field indicates a configured RS resource set that the MAC CE applies.
[0116] When the MAC CE does not indicate at least one of an ID of measurement report, an ID of measurement resource or an ID of RS resource set, it means that the MAC CE may apply all configured measurement report, configured measurement resource, or / and configured RS resource set. However, for a configured measurement report, configured measurement resource or configured RS resource set, the associated configured candidate cell (s) may not include the selected candidate cell (s) (indicated by the MAC CE) . In this case, how does UE handle the configured measurement report, configured measurement resource, or / and configured RS resource set needs to be addressed.
[0117] In order to address the above problem, in some example embodiments, application scope of the MAC CE may be defined. In other example embodiments, UE’s measurement reporting behavior for a configured measurement report, configured measurement resource or / and configured RS resource set may be specified.
[0118] In some embodiments, when receiving the Candidate cell MAC CE, and if the MAC CE does not indicate at least one of an ID of measurement report, an ID of measurement resource or an ID of RS resource set, UE may assume that the MAC CE (or the selected candidate cell (s) ) applies a configured measurement report, a configured measurement resource, or / and a configured RS resource set satisfying at least one of the following:
[0119] ● The configured candidate cell (s) associated with the configured measurement report, the configured measurement resource, or / and the configured RS resource set includes at least one selected candidate cell.
[0120] ● The configured candidate cell (s) associated with the configured measurement report, the configured measurement resource, or / and the configured RS resource set includes all selected candidate cell (s) .
[0121] In this way, a case where the configured candidate cell (s) associated with a configured measurement report, configured measurement resource or / and configured RS resource set does not include the selected candidate cell (s) may be avoided.
[0122] In some embodiments, when receiving the Candidate cell MAC CE, and if the MAC CE does not indicate at least one of an ID of measurement report, an ID of measurement resource or an ID of RS resource set, for a configured measurement report, a configured measurement resource, or / and a configured RS resource set.
[0123] UE may stop measuring the configured candidate cell (s) associated with the configured measurement report, the configured measurement resource, or / and the configured RS resource set, if at least one of the following is fulfilled:
[0124] ● The configured candidate cell (s) associated with the configured measurement report, the configured measurement resource, or / and the configured RS resource set does not include at least one selected candidate cell.
[0125] ● The configured candidate cell (s) associated with the configured measurement report, the configured measurement resource, or / and the configured RS resource set does not include all selected candidate cell (s) .
[0126] Optionally, UE may stop the measurement report, e.g., the measurement report would be released when it is a P LTM CSI report, the measurement report would be deactivated when it is a SP LTM CSI report.
[0127] In this way, UE may know how to handle the configured measurement report, configured measurement resource or / and configured RS resource set whose associated candidate cell (s) does not include the selected candidate cell (s) . Measurement and reporting resource can be saved.
[0128] As illustrated in FIG. 2, in operation, the terminal device 110 receives a command (210) (such as, MAC CE) from the network device 120, where the command indicates at least one of the following:
[0129] ● a set of candidate cells to be measured,
[0130] ● a set of reference signal (RS) resources to be measured, or
[0131] ● an association between a measurement report configuration and at least one RS resource.
[0132] Then, the terminal device 110 generates (250) a measurement report and transmit (260) the measurement report to the network device 120.
[0133] In particular, the measurement report is generated based on at least one of the following:
[0134] ● a first relationship between a first number of candidate cells to be reported configured by the network device 120 and a second number of candidate cells to be measured determined based on the command;
[0135] ● a second relationship between a third number of RS resources to be reported for a candidate cell configured by the network device 120 and a fourth number of RS resources to be measured for a candidate cell determined based on the command.
[0136] In some embodiments, the first and / or the third number may be configured by the network device 120 via at least one of the following: an RRC signalling, the command, a MAC CE used for activating a channel status information (CSI) report, or downlink control information (DCI) used for triggering a CSI report.
[0137] In some embodiments, the terminal device 110 may receive an indication from the network device 120, where the indication of whether a measurement result of a special cell (spCell) is to be reported in the measurement report.
[0138] In some embodiments, the terminal device 110 may generate the measurement report based on the first number in accordance with a determination that the first relationship indicates the first number is smaller than or equal to the second number.
[0139] Alternatively, in some embodiments, the terminal device 110 may generate the measurement report based on the third number in accordance with a determination that the second relationship indicates the third number is smaller than or equal to the fourth number.
[0140] In some embodiments, in accordance with a determination that the first relationship indicates the first number is larger than the second number, the terminal device 110 may generate the measurement report based on measurement results of N candidate cells of the set of candidate cells, wherein N is one of the following: a pre-defined number, or the second number.
[0141] In some embodiments, in accordance with a determination that the second relationship indicates the third number is larger than the fourth number, the terminal device 110 may generate the measurement report based on measurement results of P RS resources for a candidate cell, wherein P is one of the following:
[0142] ● a pre-defined number,
[0143] ● the fourth number, or
[0144] ● a minimum fourth number of RS resources to be measured for a candidate cell associated with the measurement report.
[0145] In some embodiments, the measurement report may comprise a field indicating an identity of RS resource, and a bitwidth for the field is determined based on at least one of the following:
[0146] ● a number of RS resources associated with the set of candidate cells to be measured indicated by the command,
[0147] ● a number of RS resources of the set of RS resources to be measured indicated by the command, or
[0148] ● a number of RS resources of the at least one RS resource indicated by the command.
[0149] In some embodiments, the terminal device 110 may obtain measurement results of N *P RS resources determined based on the command, wherein N is the second number, P is the fourth number. In this event, the terminal device 110 may generate the measurement report with L *M entries, wherein L is the first number and M is the third number, and wherein N *P entries of the L *M entries are used for indicating the measurement results of the N *P RS resources and the other entries are padded with default values.
[0150] To better understand the above processes, some example embodiments are discussed below.
[0151] As discussed above, in some cases, the confiugured L / M may be mismatched with the command. Reporting processes in such cases will be discussed below.
[0152] According to some embodiments of the present disclosure, after receiving an RRC signalling which configures such as, a set of candidate cells, parameters L and M, following L1 / L2 command (such as, MAC CE, DCI) may indicate L or / and M explicitly. Such embodiments will be discussed below.
[0153] In some embodiments, together with the command, NW also re-configure the parameters of L and / or M. Specifically, in some embodiments, NW may transmit (or use) at least one L1 / L2 command (e.g., MAC CE, DCI) to indicate information about at least one of the following to UE.
[0154] In some embodiments, the at least one L1 / L2 command may indicate the number of reported candidate cells (represented as ‘L’ , L ≥ 1) . This refers to how many cells are reported within a single L1 measurement report instance.
[0155] Alternatively, or in addition, in some embodiments, the at least one L1 / L2 command may indicate the number of reported beams per cell (represented as ‘M’ , M ≥1) . This refers to how many beams per cell are reported within a single L1 measurement report instance.
[0156] Alternatively, or in addition, in some embodiments, the at least one L1 / L2 command may indicate whether the SpCell (e.g., serving cell) is included in L1 measurement report (represented as ‘inclusion or exclusion of SpCell’ ) . This refers to whether UE shall include an L1 measurement report associated to the current SpCell. Parameter ‘inclusion of SpCell’ represents the SpCell is included in report, i.e., the report shall include an L1 measurement report associated to the current SpCell.
[0157] The at least one L1 / L2 command may comprise at least one of the following: Candidate cell selection MAC CE, LTM RS selection MAC CE, LTM CSI report association MAC CE, SP CSI reporting on PUCCH activation / deactivation MAC CE (this MAC CE is mainly used to activate / deactivate a configured SP CSI report) , aperiodic CSI trigger state sub selection MAC CE (this MAC CE is mainly used to select a subset of AP CSI trigger states from a set of configured AP CSI trigger states) , DCI that indicates a SP CSI trigger state (e.g., CSI-SemiPersistentOnPUSCH-TriggerState) , i.e., DCI triggering a SP CSI report based on PUSCH, or DCI that indicates an AP CSI trigger state (e.g., CSI-AperiodicTriggerState) , i.e., DCI triggering an AP CSI report.
[0158] In some embodiments, the at least one L1 / L2 command may comprise a MAC CE, and the MAC CE may comprise at least one of the following fields or information: Number of reported candidate cells, e.g.,
[0159] This field indicates the number of candidate cells to be reported in a single L1 measurement report instance. The number of reported candidate cells may take values within the range of 1 to 4 (or other value) . Optionally, the length of the field may be 2 bits. 00 indicates that the L equals to 1; 01 indicates that N equals to 2 and so on. Optionally, the field may indicate an identity of number of reported candidate cells in a set of configured numbers of reported candidate cells (e.g., provided by higher layer parameter nrOfReportedCellsList) .
[0160] Number of reported beams per cell, e.g.,
[0161] This field indicates the number of beams per cell to be reported in a single L1 measurement report instance. The number of reported beams per cell may take values within the range of 1 to 4 (or other value) . Optionally, the length of the field may be 2 bits. 00 indicates that the L equals to 1; 01 indicates that N equals to 2 and so on. Optionally, the field may indicate an identity of number of reported candidate cells in a set of configured numbers of reported candidate cells (e.g., provided by higher layer parameter nrOfReportedCellsList) .
[0162] Inclusion / exclusion of SpCell, e.g.,
[0163] This field indicates whether UE shall include a L1 measurement report associated to the current SpCell. The length of the field may be 1 bit. ‘0’ indicates UE shall not include a L1 measurement report associated to the current SpCell (represented as ‘exclusion of SpCell’ ) . ‘1’ indicates UE shall include a L1 measurement report associated to the current SpCell (represented as ‘inclusion of SpCell’ ) .
[0164] Alternatively, In some embodiments, the at least one L1 / L2 command may comprise a DCI (e.g., DCI format 0_0 / 1 / 2 / 3) , the DCI may comprise at least one of the following fields or information:
[0165] Number of reported candidate cells, e.g.,
[0166] This field indicates the number of candidate cells to report in a single measurement report instance (corresponding to the SP CSI report based on PUSCH or AP CSI report triggered by the DCI) . The bitwidth for this field may be 2 bits. 00 indicates that the number of reported candidate cells equals to 1; 01 indicates that N equals to 2 and so on. Optionally, this field indicates an identity of number of reported candidate cells. In this case, UE may be provided with a set of numbers of reported candidate cells by NW using RRC (e.g., higher layer parameter nrOfReportedCellsList) or / and MAC CE. The bitwidth for this field may be determined as bits, where I is the number of entries in the higher layer parameter nrOfReportedCellsList.
[0167] Number of reported beams per cell, e.g.,
[0168] This field indicates the number of beams per cell to be reported in a single L1 measurement report instance (corresponding to the SP CSI report based on PUSCH or AP CSI report triggered by the DCI) . The bitwidth for this field may be 2 bits. 00 indicates that the L equals to 1; 01 indicates that N equals to 2 and so on. Optionally, this field may indicate an identity of number of reported beams per cell in a set of configured numbers of reported beams per cell by NW using RRC (e.g., provided by higher layer parameter nrOfReportedRS-PerCellList) . The bitwidth for this field may be determined as bits, where I is the number of entries in the higher layer parameter nrOfReportedRS-PerCellList.
[0169] Inclusion of SpCell, e.g.,
[0170] This field indicates whether the current SpCell is reported in the L1 measurement report (e.g., the SP CSI report based on PUSCH or AP CSI report triggered by the DCI) . The bitwidth for this field may be 1 bit. ‘0’ indicates exclusion of SpCell. ‘1’ indicates inclusion of SpCell.
[0171] In operation, when UE receives the at least one L1 / L2 command, and if the at least one L1 / L2 command indicates an ID of (configured) measurement report or triggers a measurement report, i.e., the at least one L1 / L2 command indicates a measurement report:
[0172] In some embodiments, UE may apply the indicated L, M, or / and the inclusion / exclusion of SpCell to the indicated measurement report. Specifically, if inclusion of SpCell is indicated, UE may report L cell (s) in a single measurement report instance corresponding to the indicated measurement report and report M beam (s) per cell; if exclusion of SpCell is indicated, UE may report L-1 cell (s) in a single measurement report instance corresponding to the indicated measurement report and report M beam (s) per cell.
[0173] In some embodiments, when UE receives the at least one L1 / L2 command, and if the at least one L1 / L2 command does not indicate an ID of (configured) measurement report or does not trigger a measurement report, i.e., the at least one L1 / L2 command does not indicate a measurement report (for example, the L, M, or / and inclusion / exclusion of SpCell and the selection of candidate cells are indicated by the same L1 / L2 command (s) , e.g., the Candidate cell selection MAC CE, and the L1 / L2 command (s) does not indicate a measurement report; for another example, the L, M, or / and inclusion / exclusion of SpCell and the selection of candidate cells are indicated by separate L1 / L2 commands) , for a configured measurement report:
[0174] In some embodiments, if the indicated L is smaller than or equal to the number of measured (or selected) candidate cells associated with the measurement report, UE may apply the indicated L to the measurement report.
[0175] In some embodiments, if the indicated L is larger than the number of measured (or selected) candidate cells associated with the measurement report, UE may determine the L applied to the measurement report based on at least one of the following:
[0176] ● Default or predefined value, e.g., L = 1. Optionally, it may be configured or updated by NW using RRC / MAC CE / DCI, and / or based on UE capability.
[0177] ● The number of measured (or selected) candidate cells associated with the measurement report.
[0178] ● Further, optionally, the number of measured candidate cells and a predefined offset. For example, if the number of measured candidate cells is equal to 3 and the predicted offset is equal to 1, the L may be equal to 3 -1 = 2. Optionally, the offset may be configured or updated by NW using RRC / MAC CE / DCI, and / or based on UE capability.
[0179] In some embodiments, if the indicated M is smaller than or equal to the minimum number of measured (or selected) beams of a candidate cell associated with the measurement report, UE may apply the indicated M to the measurement report.
[0180] In some embodiments, the minimum number of measured (or selected) beams of a candidate cell may be determined based on all numbers of measured (or selected) beams of a candidate cell associated with the measurement report.
[0181] In some embodiments, if the indicated M is larger than the minimum number of measured (or selected) beams of a candidate cell associated with the measurement report, UE may determine the M applied to the measurement report based on at least one of the following:
[0182] ● Default or predefined value, e.g., M = 1. Optionally, it may be configured or updated by NW using RRC / MAC CE / DCI, and / or based on UE capability.
[0183] ● The minimum number of measured (or selected) beams of a candidate cell associated with the measurement report.
[0184] ● Further, optionally, the minimum number of measured (or selected) beams of a candidate cell and a predefined offset. For example, if the minimum number of measured (or selected) beams of a candidate cell is equal to 3 and the predicted offset is equal to 1, the M may be equal to 3 -1 = 2. Optionally, the offset may be configured or updated by NW using RRC / MAC CE / DCI, and / or based on UE capability.
[0185] In some embodiments, UE may apply the indicated inclusion / exclusion of SpCell to the measurement report.
[0186] In this way, based on the L1 / L2 command, NW can flexibly indicate a reasonable number of reported candidate cells to UE based on the currently selected or measured candidate cell and the reporting overhead is saved accordingly.
[0187] According to some embodiments of the present disclosure, in a case that the following L1 / L2 command (such as, MAC CE, DCI) does not indicate L or / and M explicitly, the terminal device may determine reported L or / and M implicitly. Such embodiments will be discussed below.
[0188] In operation, after UE receives a L1 / L2 command that indicates at least one of selection (or activation) of candidate cells (for L1 measurement) , or selection (or activation) of beams of a candidate cell, e.g., the Candidate cell selection MAC CE, the LTM RS selection MAC CE, the LTM CSI report association MAC CE. Furthermore, SP CSI reporting on PUCCH activation / deactivation MAC CE, Aperiodic CSI trigger state sub selection MAC CE, DCI that indicates a SP CSI trigger state, or DCI that indicates an AP CSI trigger state may be used to indicate the at least one of selection (or activation) of candidate cells (for L1 measurement) , or selection (or activation) of beams of a candidate cell.
[0189] For a configured report, or a configured measurement report indicated by the L1 / L2 command (if an ID of measurement report is indicated by the L1 / L2 command) : if the configured L associated with the measurement report is smaller than or equal to the number of measured (or selected) candidate cells associated with the measurement report, UE apply the configured L to the measurement report.
[0190] Alternatively, in some embodiments, for a configured report, or a configured measurement report indicated by the L1 / L2 command (if an ID of measurement report is indicated by the L1 / L2 command) : if the configured L associated with the measurement report is larger than the number of measured (or selected) candidate cells associated with the measurement report, (or regardless of whether the configured L associated with the measurement report is smaller or equal to the number of measured (or selected) candidate cells associated with the measurement report) , UE may determine the L applied to the measurement report based on at least one of the following:
[0191] ● Default or predefined value, e.g., L = 1.
[0192] ● The number of measured (or selected) candidate cells associated with the measurement report, and a predefined offset (optional) .
[0193] For a configured report, or a configured measurement report indicated by the L1 / L2 command (if an ID of measurement report is indicated by the L1 / L2 command) : if the configured M associated with the measurement report is smaller than or equal to the minimum number of measured (or selected) beams of a candidate cell associated with the measurement report, UE may apply the configured M to the measurement report.
[0194] Alternatively, in some embodiments, for a configured report, or a configured measurement report indicated by the L1 / L2 command (if an ID of measurement report is indicated by the L1 / L2 command) : if the configured M associated with the measurement report is larger than the minimum number of measured (or selected) beams of a candidate cell associated with the measurement report, UE may determine the M applied to the measurement report based on at least one of the following:
[0195] ● Default or predefined value, e.g., M = 1.
[0196] ● The minimum number of measured (or selected) beams of a candidate cell associated with the measurement report, and a predefined offset (optional) .
[0197] In some embodiments, UE may apply the configured inclusion / exclusion of SpCell to the measurement report.
[0198] In this way, for a configured measurement report, UE can determine the corresponding number of reported candidate cells when the associated measured (or selected) candidate cells change. Additional signaling used to indicate or update the number of reported candidate cells can be avoided, and the reporting overhead and saved accordingly.
[0199] According to some embodiments of the present disclosure, a mechanism of zero padding may be introduced. Such embodiments will be discussed below.
[0200] In the UCI carrying the measurement report, the bitwidth for beam ID (e.g., CRI, SSBRI) is provided in the following table:
[0201] In operation, when UE receives the Candidate cell selection MAC CE, where may be the number of CSI-RS resources associated with the measured (or selected) candidate cell (s) in the corresponding resource set, and may be the (configured) number of SSBs associated with the measured (or selected) candidate cell (s) in the corresponding resource set.
[0202] Alternatively, when UE receives the LTM RS selection MAC CE, where may be the number of selected (or activated, measured) CSI-RS resources in the corresponding resource set, and may be the (configured) number of selected (or activated, measured) SSBs in the corresponding resource set.
[0203] Alternatively, when UE receives the LTM CSI report association MAC CE, where may be the number of CSI-RS resources in the resource set associated with the indicated measurement report, and may be the (configured) number of SSBs in the resource set associated with the indicated measurement report.
[0204] For a measurement report, for L1 measurement reporting (e.g., L1-RSRP reporting, L1-SINR reporting) , UE maty determine whether the following are fulfilled:
[0205] ● The configured L associated with the measurement report is larger than the number of measured (or selected) candidate cells associated with the measurement report.
[0206] ● The configured M associated with the measurement report is larger than the minimum number of measured (or selected) beams of a candidate cell associated with the measurement report.
[0207] ● The [configured M *configured L] is larger than the number of measured (or selected) beams of candidate cell (s) associated with the measurement report.
[0208] Where the number of measured (or selected) beams of candidate cell (s) refers to the total number of measured (or selected) beams of all measured (or selected) candidate cells.
[0209] If at least one of the above is fulfilled, UE may perform the following: the redundant beam ID field (s) (e.g., SSBRI, CRI) or / and the redundant differential RSRP field (s) may be zero (or one) padded, or be padded with a specific binary bit sequence corresponding to a specific RS resource ID or / and a specific reported or measured quantity value of L1-RSRP.
[0210] For example, assuming the configured L = 4 and M = 4, exclusion of SpCell is configured, the number of measured candidate cells is equal to 2. In this case, the SSBRI #9~16 may be zero padded, and the Differential RSRP #9~16 may be zero padded. After NW receives the UCI carrying the above measurement report, NW may ignore these redundant beam ID field (s) or / and differential RSRP field (s) in the UCI.
[0211] In this way, UE may know how to handle the redundant beam ID field (s) or / and the redundant beam quality field (s) .
[0212] According to some embodiments of the present disclosure, in addition to a set of candidate cells, the RRC signaling may configured a list of Ls or / and a list of Ms. Such embodiments will be discussed below.
[0213] In operation, the terminal device 110 receives (210) configuration information (such as, RRC) from a network device 120, where the configuration information comprises a set of reporting configurations comprising at least one of the following:
[0214] ● a set of first numbers of candidate cells to be reported,
[0215] ● a set of third numbers of reference signal (RS) resources to be reported for a candidate cell,
[0216] ● a set of indications of whether a measurement result of a special cell (spCell) is to be reported in a measurement report, or
[0217] ● a set of configurations, each configuration comprising at least one of the following: a first number, a third number or an indication.
[0218] Then, the terminal device 110 generates (250) a measurement report and transmit (260) the measurement report to the network device 120.
[0219] In particular, the measurement report is generated based on a reporting configuration determined from the set of reporting configurations based on at least one of the following:
[0220] ● a first number of the set of first numbers indicated by the network device 120,
[0221] ● a third number of the set of third numbers indicated by the network device 120,
[0222] ● an indication of the set of indications indicated by the network device 120,
[0223] ● an identity of a configuration of the set of configurations indicated by the network device 120,
[0224] ● a set of candidate cells to be measured indicated by the network device 120,
[0225] ● a set of reference signal (RS) resources to be measured indicated by the network device 120, or
[0226] ● a set of RS resources to be measured for a candidate cell indicated by the network device 120.
[0227] In some embodiments, the determined reporting configuration may comprise at least one of the following:
[0228] ● a first number smaller than or equal to a number of candidate cells in the indicated set of candidate cells to be measured,
[0229] ● a third number smaller than or equal to a number of RS resources in the indicated set of RS resources to be measured, or
[0230] ● a third number smaller than or equal to a number of RS resources in the indicated set of RS resources to be measured for a candidate cell.
[0231] In some embodiments, in accordance with a determination that there are more than one reporting configuration comprising a first number smaller than or equal to a number of candidate cells of the set of candidate cells, the terminal device may determine the reporting configuration from the more than one reporting configuration based on at least one of the following:
[0232] ● values of first numbers of the more than one reporting configuration,
[0233] ● identities of first numbers of the more than one reporting configuration,
[0234] ● a capability of the terminal device 110 on a maximum value of a product of a number of candidate cells to be reported and a number of RS resources to be reported for a candidate cell in a measurement report,
[0235] ● a capability of the terminal device 110 on a maximum value of a number of RS resources to be reported in a measurement report,
[0236] ● a capability of the terminal device 110 on a maximum value of a number of candidate cells to be reported in a measurement report,
[0237] ● a capability of the terminal device 110 on a maximum value of a number of RS resources to be reported for a candidate cell in a measurement report, or
[0238] ● a determined third number.
[0239] In some embodiments, in accordance with a determination that there are more than one reporting configuration comprising a third number smaller than or equal to a number of RS resources to be reported for a candidate cell, the terminal device 110 may determine the reporting configuration from the more than one reporting configuration based on at least one of the following:
[0240] ● values of third numbers of the more than one reporting configuration,
[0241] ● identities of third numbers of the more than one reporting configuration,
[0242] ● a capability of the terminal device 110 on a maximum value of a product of a number of candidate cells to be reported and a number of RS resources to be reported for a candidate cell in a measurement report,
[0243] ● a capability of the terminal device 110 on a maximum value of a number of RS resources to be reported in a measurement report,
[0244] ● a capability of the terminal device 110 on a maximum value of a number of candidate cells to be reported in a measurement report,
[0245] ● a capability of the terminal device 110 on a maximum value of a number of RS resources to be reported for a candidate cell in a measurement report, or
[0246] ● a determined first number.
[0247] To better understand the above processes, some example embodiments are discussed below.
[0248] As shown below, UE may be provided by NW with at least one of the following: a list of Ls (e.g., nrOfReportedCellsList-r19) , a list of Ms (e.g., nrOfReportedRS-PerCellList-r19) , or a list of inclusion / exclusion of SpCell (e.g., spCellInclusionList-r19) .
[0249] In some embodiments, the number of configured Ls may be equal to the number of configured Ms, or / and the number of configured inclusion / exclusion of SpCell. Each configured L corresponds to a M, or / and inclusion / exclusion of SpCell. For example, the first entry in the list of Ls may be associated to the first entry in the list of Ls, or / and the list of inclusion / exclusion of SpCell, the second entry in the list of Ls may be associated to the second entry in the list of Ls, or / and the list of inclusion / exclusion of SpCell, and so on.
[0250] In some embodiments, the maxNrofReportContentConfigs-1 / 2 / 3 is an integer ≥1. They may be different (or independent, in this case, they may refer to the maximum number of reported Ls, Ms, inclusion / exclusion of SpCell configured per LTM CSI report or LTM measurement report content. They may be the same, in this case, they may refer to the maximum number of LTM measurement report content configurations configured per LTM CSI report.
[0251] Optionally, UE may be provided by NW with a list of combinations, and each combination may comprise at least one of L, M or inclusion / exclusion of SpCell.
[0252] For a configured measurement report, if UE is provided with one L, M or / and inclusion / exclusion of SpCell, e.g., the list of Ls comprises one L, the list of Ms comprises one M, before UE receives the L1 / L2 command, UE may apply the configured L or M to the measurement report. If UE is provided with more than one L or M, e.g., the list of Ls comprises multiple Ls, the list of Ms comprises multiple Ms, before UE receives the L1 / L2 command,
[0253] In some embodiments, UE may determine the L applied to the measurement report from the list of Ls based on at least one of the following:
[0254] ● The L that is smaller than or equal to the number of configured candidate cells associated with the measurement report.
[0255] ● The largest (or smallest) L.
[0256] ● The L with lowest (or highest) ID, i.e., the first (or last) entry in the list of Ls.
[0257] In some embodiments, UE may determine the M applied to the measurement report from the list of Ms based on at least one of the following:
[0258] ● The M that is smaller than or equal to the minimum number of configured beams of a candidate cell associated with the measurement report.
[0259] ● The largest (or smallest) M.
[0260] ● The M with lowest (or highest) ID, i.e., the first (or last) entry in the list of Ms.
[0261] ● The determined L and UE capability information (e.g., maximum of L*M) , e.g., the determined configured M *the determined L needs to be no larger than the maximum of L*M. This means that UE may first determine the L and then determine the M based on the determined L.
[0262] In some embodiments, for a configured measurement report, if UE is provided with one L, M or / and inclusion / exclusion of SpCell, e.g., the list of Ls comprises one L, the list of Ms comprises one M, after UE receives the L1 / L2 command, UE may determine the L applied to the measurement report based on Case 1-2. If UE is provided with more than one L or M, e.g., the list of Ls comprises multiple Ls, the list of Ms comprises multiple Ms, after UE receives the L1 / L2 command, UE may determine the L applied to the measurement report from the list of Ls based on at least the following:
[0263] ● The L that is smaller than or equal to the number of measured (or selected) candidate cells associated with the measurement report.
[0264] ● The largest (or smallest) L.
[0265] ● The L with lowest (or highest) ID, i.e., the first (or last) entry in the list of Ls.
[0266] In some embodiments, UE may determine the M applied to the measurement report from the list of Ms based on at least one of the following:
[0267] ● The M that is smaller than or equal to the minimum number of measured (or selected) beams of a candidate cell associated with the measurement report.
[0268] ● The largest (or smallest) M.
[0269] ● The M with lowest (or highest) ID, i.e., the first (or last) entry in the list of Ms.
[0270] ● The determined L and UE capability information (e.g., maximum of L*M) , e.g., the determined configured M *the determined L needs to be no larger than the maximum of L*M. This means that UE may first determine the L and then determine the M based on the determined L.
[0271] In some embodiments, the L1 / L2 command may indicate the L, M or / and inclusion / exclusion of SpCell from the list of Ls, the list of Ms or the list of inclusion / exclusion of SpCell.
[0272] In some embodiments, if UE is provided with a list of combinations, UE may first determine the L (or / and M) based on the above methods and then determine the corresponding combination.
[0273] In this way, for a configured measurement report, UE can determine the corresponding number of reported candidate cells from a set of configured numbers of reported candidate cells when the associated measured (or selected) candidate cells change. Additional L1 / L2 signaling used to indicate or update the number of reported candidate cells can be avoided, and the reporting overhead and saved accordingly.
[0274] In operation, the terminal device 110 receives (210) at least one configuration from a network device 120, where the at least one configuration indicates a plurality of reference signal (RS) resources, each RS resource being associated with a first number of candidate cells to be reported and / or a third number of RS resources to be reported for a candidate cell.
[0275] The terminal device 110 receives (220) a command (such as, MAC CE) from a network device 120, where the command indicating an association between a measurement report configuration and an RS resource of the plurality of RS resources.
[0276] Then, the terminal device 110 generates (250) a measurement report and transmit (260) the measurement report to the network device 120.
[0277] In particular, the measurement report is generated a measurement report by using the measurement report configuration and based on a first number and / or a third number associated with the RS resource.
[0278] In some embodiments, before receiving the command, the terminal device 110 may generate a further measurement report based on at least one of the following: a first number of candidate cells to be reported associated with the measurement report configuration, a third number of RS resources to be reported for a candidate cell associated with the measurement report configuration, or an indication of whether a measurement result of a special cell (spCell) is to be reported in a measurement report, and may transmit the further measurement report to the network device 120.
[0279] In some embodiments, after receiving the command, the terminal device 110 may ignore at least one of the following: the first number of candidate cells to be reported associated with the measurement report configuration, the third number of RS resources to be reported for a candidate cell associated with the measurement report configuration, or the indication of whether a measurement result of a spCell is to be reported in a measurement report.
[0280] To better understand the above processes, some example embodiments are discussed below.
[0281] According to some embodiments of the present disclosure, for a configured measurement resource or RS resource set, UE may be provided by NW with an associated L, M, or / and inclusion / exclusion of SpCell, as below.
[0282] In some embodiments, for a configured measurement report, before UE receives the LTM CSI report association MAC CE, UE may apply the configured L, M, or / and inclusion / exclusion of SpCell associated with the measurement report. Accordinglyēafter UE receives the LTM CSI report association MAC CE, UE may apply the configured L, M, or / and inclusion / exclusion of SpCell associated with the measurement resource or RS resource set indicated by the MAC CE.
[0283] Optionally, for a configured measurement report, if the (configured) measurement resource or RS resource set associated with the measurement report is associated with an L, M, or / and inclusion / exclusion of SpCell, UE may ignore the configured L, M, or / and inclusion / exclusion of SpCell associated with the measurement report.
[0284] In this way, NW can pre-configure the number of reported candidate cells based on the measurement resource. Additional L1 / L2 signaling used to indicate or update the number of reported candidate cells can be avoided, and reporting overhead is saved accordingly.
[0285] Example Method
[0286] FIG. 3 illustrates a flowchart of a communication method 300 implemented at a terminal device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 300 will be described from the perspective of the terminal device 11-in FIG. 1.
[0287] At block 310, the terminal device receives, from a network device, a command indicating at least one of the following: a set of candidate cells to be measured, a set of reference signal (RS) resources to be measured, or an association between a measurement report configuration and at least one RS resource.
[0288] At block 320, the terminal device generates a measurement report based on at least one of the following: a first relationship between a first number of candidate cells to be reported configured by the network device and a second number of candidate cells to be measured determined based on the command, or a second relationship between a third number of RS resources to be reported for a candidate cell configured by the network device and a fourth number of RS resources to be measured for a candidate cell determined based on the command.
[0289] At block 330, the terminal device transmits the measurement report to the network device.
[0290] In some example embodiments, the first and / or the third number is configured by the network device via at least one of the following: a radio resource control (RRC) signalling, the command, a medium access control control element (MAC CE) used for activating a channel status information (CSI) report, or downlink control information (DCI) used for triggering a CSI report.
[0291] In some example embodiments, the terminal device receives, from the network device, an indication of whether a measurement result of a special cell (spCell) is to be reported in the measurement report.
[0292] In some example embodiments, the terminal device generates the measurement report based on the first number in accordance with a determination that the first relationship indicates the first number is smaller than or equal to the second number; and / or generate the measurement report based on the third number in accordance with a determination that the second relationship indicates the third number is smaller than or equal to the fourth number.
[0293] In some example embodiments, in accordance with a determination that the first relationship indicates the first number is larger than the second number, the terminal device generates the measurement report based on measurement results of N candidate cells of the set of candidate cells, wherein N is one of the following: a pre-defined number, or the second number.
[0294] In some example embodiments, in accordance with a determination that the second relationship indicates the third number is larger than the fourth number, the terminal device generates the measurement report based on measurement results of P RS resources for a candidate cell, wherein P is one of the following: a pre-defined number, the fourth number, or a minimum fourth number of RS resources to be measured for a candidate cell associated with the measurement report.
[0295] In some example embodiments, the measurement report comprises a field indicating an identity of RS resource, and a bitwidth for the field is determined based on at least one of the following: a number of RS resources associated with the set of candidate cells to be measured indicated by the command, a number of RS resources of the set of RS resources to be measured indicated by the command, or a number of RS resources of the at least one RS resource indicated by the command.
[0296] In some example embodiments, the terminal device obtained measurement results of N *P RS resources determined based on the command, wherein N is the second number, P is the fourth number; and generate the measurement report with L *M entries, wherein L is the first number and M is the third number, and wherein N *P entries of the L *M entries are used for indicating the measurement results of the N *P RS resources and the other entries are padded with default values.
[0297] FIG. 4 illustrates a flowchart of a communication method 400 implemented at a terminal device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 400 will be described from the perspective of a terminal device 110 in FIG. 1.
[0298] At block 410, the terminal device receives, from a network device, configuration information comprising a set of reporting configurations, the set of reporting configurations comprising at least one of the following: a set of first numbers of candidate cells to be reported, a set of third numbers of reference signal (RS) resources to be reported for a candidate cell, a set of indications of whether a measurement result of a special cell (spCell) is to be reported in a measurement report, or a set of configurations, each configuration comprising at least one of the following: a first number, a third number or an indication.
[0299] At block 420, the terminal device generates a measurement report based on a reporting configuration determined from the set of reporting configurations based on at least one of the following: a first number of the set of first numbers indicated by the network device, a third number of the set of third numbers indicated by the network device, an indication of the set of indications indicated by the network device, an identity of a configuration of the set of configurations indicated by the network device, a set of candidate cells to be measured indicated by the network device, a set of reference signal (RS) resources to be measured indicated by the network device, or a set of RS resources to be measured for a candidate cell indicated by the network device.
[0300] At block 420, the terminal device transmits the measurement report to the network device.
[0301] In some example embodiments, the determined reporting configuration comprises at least one of the following: a first number smaller than or equal to a number of candidate cells in the indicated set of candidate cells to be measured, a third number smaller than or equal to a number of RS resources in the indicated set of RS resources to be measured, or a third number smaller than or equal to a number of RS resources in the indicated set of RS resources to be measured for a candidate cell.
[0302] In some example embodiments, in accordance with a determination that there are more than one reporting configuration comprising a first number smaller than or equal to a number of candidate cells of the set of candidate cells, the terminal device determines the reporting configuration from the more than one reporting configuration based on at least one of the following: values of first numbers of the more than one reporting configuration, identities of first numbers of the more than one reporting configuration, a capability of the terminal device on a maximum value of a product of a number of candidate cells to be reported and a number of RS resources to be reported for a candidate cell in a measurement report, a capability of the terminal device on a maximum value of a number of RS resources to be reported in a measurement report, a capability of the terminal device on a maximum value of a number of candidate cells to be reported in a measurement report, a capability of the terminal device on a maximum value of a number of RS resources to be reported for a candidate cell in a measurement report, or a determined third number.
[0303] In some example embodiments, in accordance with a determination that there are more than one reporting configuration comprising a third number smaller than or equal to a number of RS resources to be reported for a candidate cell, the terminal device determines the reporting configuration from the more than one reporting configuration based on at least one of the following: values of third numbers of the more than one reporting configuration, identities of third numbers of the more than one reporting configuration, a capability of the terminal device on a maximum value of a product of a number of candidate cells to be reported and a number of RS resources to be reported for a candidate cell in a measurement report, a capability of the terminal device on a maximum value of a number of RS resources to be reported in a measurement report, a capability of the terminal device on a maximum value of a number of candidate cells to be reported in a measurement report, a capability of the terminal device on a maximum value of a number of RS resources to be reported for a candidate cell in a measurement report, or a determined first number.
[0304] FIG. 5 illustrates a flowchart of a communication method 500 implemented at a terminal device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 500 will be described from the perspective of a terminal device 110 in FIG. 1.
[0305] At block 510, the terminal device receives, from a network device, at least one configuration indicating a plurality of reference signal (RS) resources, each RS resource being associated with a first number of candidate cells to be reported and / or a third number of RS resources to be reported for a candidate cell.
[0306] At block 520, the terminal device receives, from a network device, a command indicating an association between a measurement report configuration and an RS resource of the plurality of RS resources. and
[0307] At block 530, the terminal device generates, by using the measurement report configuration, a measurement report based on a first number and / or a third number associated with the RS resource.
[0308] At block 540, the terminal device transmits the measurement report to the network device.
[0309] In some example embodiments, before receiving the command, the terminal device generates a further measurement report based on at least one of the following: a first number of candidate cells to be reported associated with the measurement report configuration, a third number of RS resources to be reported for a candidate cell associated with the measurement report configuration, or an indication of whether a measurement result of a special cell (spCell) is to be reported in a measurement report; and transmit the further measurement report to the network device.
[0310] In some example embodiments, after receiving the command, the terminal device ignores at least one of the following: the first number of candidate cells to be reported associated with the measurement report configuration, the third number of RS resources to be reported for a candidate cell associated with the measurement report configuration, or the indication of whether a measurement result of a spCell is to be reported in a measurement report.
[0311] FIG. 6 illustrates a flowchart of a communication method 600 implemented at a terminal device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 600 will be described from the perspective of a terminal device 110 in FIG. 1.
[0312] At block 610, the terminal device receives, from a network device, configuration information of at least one measurement report configuration, each measurement report configuration indicating at least one of the following: a plurality of candidate cells, or a plurality of reference signal (RS) resources.
[0313] At block 620, the terminal device receives, from the network device, a command indicating at least one of the following: a set of candidate cells to be measured, or a set of reference signal (RS) resources to be measured.
[0314] At block 630, the terminal device performs at least one of the following: applying the command to a first measurement report configuration of the at least one measurement report configurationēwherein at least part of the set of candidate cells are comprised in the plurality of candidate cells of the first measurement report configuration and / or at least part of the set of RS resources are comprised in the plurality of RS resources of the first measurement report configuration, or stopping measurements and / or reporting on a second measurement report configuration of the at least one measurement report configuration, wherein at least part of the set of candidate cells are not comprised in the plurality of candidate cells of the second measurement report configuration and / or at least part of the set of RS resources are not comprised in the plurality of RS resources of the second measurement report configuration.
[0315] In some example embodiments, the terminal device deactivates the second measurement report configuration, or release the second measurement report configuration.
[0316] In some example embodiments, in accordance with a determination that all of the set of candidate cells are comprised in the plurality of candidate cells of the first measurement report and / or all of the set of RS resources are comprised in the plurality of RS resources of the first measurement report, the terminal device applies the command based on a first application timing; and in accordance with a determination that part of the set of candidate cells are comprised in the plurality of candidate cells of the first measurement report and / or part of the set of RS resources are comprised in the plurality of RS resources of the first measurement report, apply the command based on a second application timing different from the first application timing.
[0317] In some example embodiments, the second application timing is determined based on at least one of the following: a number of candidate cells of the set of candidate cells which are mot comprised in the plurality of candidate cells, or a number of RS resources of the set of RS resources which are mot comprised in the plurality of RS resources.
[0318] FIG. 7 illustrates a flowchart of a communication method 700 implemented at a network device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 700 will be described from the perspective of a network device 120 in FIG. 1.
[0319] At block 710, the network device transmits, to a terminal device, a command indicating at least one of the following: a set of candidate cells to be measured, a set of reference signal (RS) resources to be measured, or an association between a measurement report configuration and at least one RS resource.
[0320] At block 720, the network device receives, from the terminal device, a measurement report generated by the terminal device based on at least one of the following: a first relationship between a first number of candidate cells to be reported configured by the network device and a second number of candidate cells to be measured determined based on the command, or a second relationship between a third number of RS resources to be reported for a candidate cell configured by the network device and a fourth number of RS resources to be measured for a candidate cell determined based on the command.
[0321] In some example embodiments, the first and / or the third number is configured by the network device via at least one of the following: a radio resource control (RRC) signalling, the command, a medium access control control element (MAC CE) used for activating a channel status information (CSI) report, or downlink control information (DCI) used for triggering a CSI report.
[0322] In some example embodiments, the network device transmits, to the terminal device, an indication of whether a measurement result of a special cell (spCell) is to be reported in the measurement report.
[0323] In some example embodiments, the measurement report is generated based on the first number in accordance with a determination that the first relationship indicates the first number is smaller than or equal to the second number; and / or the measurement report is generated based on the third number in accordance with a determination that the second relationship indicates the third number is smaller than or equal to the fourth number.
[0324] In some example embodiments, N is one of the following: a pre-defined number, or the second number.
[0325] In some example embodiments, P is one of the following: a pre-defined number, the fourth number, or a minimum fourth number of RS resources to be measured for a candidate cell associated with the measurement report.
[0326] In some example embodiments, the measurement report comprises a field indicating an identity of RS resource, and a bitwidth for the field is determined based on at least one of the following: a number of RS resources associated with the set of candidate cells to be measured indicated by the command, a number of RS resources of the set of RS resources to be measured indicated by the command, or a number of RS resources of the at least one RS resource indicated by the command.
[0327] In some example embodiments, the measurement report comprises L *M entries, and N *P entries of the L *M entries are used for indicating the measurement results of N *P RS resources and the other entries are padded with default values, and wherein L is the first number, M is the third number, N is the second number, P is the fourth number.
[0328] FIG. 8 illustrates a flowchart of a communication method 800 implemented at a network device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 800 will be described from the perspective of a network device 120 in FIG. 1.
[0329] At block 810, the network device transmits, to a terminal device, configuration information comprising a set of reporting configurations, the set of reporting configurations comprising at least one of the following: a set of first numbers of candidate cells to be reported, a set of third numbers of reference signal (RS) resources to be reported for a candidate cell, a set of indications of whether a measurement result of a special cell (spCell) is to be reported in a measurement report, or a set of configurations, each configuration comprising at least one of the following: a first number, a third number or an indication.
[0330] At block 820, the network device receives, from the terminal device a measurement report generated based on a reporting configuration determined from the set of reporting configurations based on at least one of the following: a first number of the set of first numbers indicated by the network device, a third number of the set of third numbers indicated by the network device, an indication of the set of indications indicated by the network device, an identity of a configuration of the set of configurations indicated by the network device, a set of candidate cells to be measured indicated by the network device, a set of reference signal (RS) resources to be measured indicated by the network device, or a set of RS resources to be measured for a candidate cell indicated by the network device.
[0331] In some example embodiments, the determined reporting configuration comprises at least one of the following: a first number smaller than or equal to a number of candidate cells in the indicated set of candidate cells to be measured, a third number smaller than or equal to a number of RS resources in the indicated set of RS resources to be measured, or a third number smaller than or equal to a number of RS resources in the indicated set of RS resources to be measured for a candidate cell.
[0332] FIG. 9 illustrates a flowchart of a communication method 900 implemented at a network device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 900 will be described from the perspective of a network device 120 in FIG. 1.
[0333] At block 910, the network device transmits, to a terminal device, at least one configuration indicating a plurality of reference signal (RS) resources, each RS resource being associated with a first number of candidate cells to be reported and / or a third number of RS resources to be reported for a candidate cell.
[0334] At block 920, the network device transmits, to the terminal device, a command indicating an association between a measurement report configuration and an RS resource of the plurality of RS resources.
[0335] At block 930, the network device receives, from the terminal device, a measurement report generated by using the measurement report configuration and based on a first number and / or a third number associated with the RS resource.
[0336] In some example embodiments, before transmitting the command, the network device receives, from the terminal device, a further measurement report generated based on at least one of the following: a first number of candidate cells to be reported associated with the measurement report configuration, a third number of RS resources to be reported for a candidate cell associated with the measurement report configuration, or an indication of whether a measurement result of a special cell (spCell) is to be reported in a measurement report.
[0337] Example Device, apparatus and CRM
[0338] FIG. 10 is a simplified block diagram of a device 1000 that is suitable for implementing embodiments of the present disclosure. The device 1000 can be considered as a further example implementation of any of the devices as shown in FIG. 1. Accordingly, the device 1000 can be implemented at or as at least a part of the terminal device 110 or the network device 120.
[0339] As shown, the device 1000 includes a processor 1010, a memory 1020 coupled to the processor 1010, a suitable transceiver 1040 coupled to the processor 1010, and a communication interface coupled to the transceiver 1040. The memory 1020 stores at least a part of a program 1030. The transceiver 1040 may be for bidirectional communications or a unidirectional communication based on requirements. The transceiver 1040 may include at least one of a transmitter 1042 and a receiver 1044. The transmitter 1042 and the receiver 1044 may be functional modules or physical entities. The transceiver 1040 has at least one antenna to facilitate communication, though in practice an Access Node mentioned in this application may have several ones. The communication interface may represent any interface that is necessary for communication with other network elements, such as X2 / Xn interface for bidirectional communications between eNBs / gNBs, S1 / NG interface for communication between a Mobility Management Entity (MME) / Access and Mobility Management Function (AMF) / SGW / UPF and the eNB / gNB, Un interface for communication between the eNB / gNB and a relay node (RN) , or Uu interface for communication between the eNB / gNB and a terminal device.
[0340] The program 1030 is assumed to include program instructions that, when executed by the associated processor 1010, enable the device 1000 to operate in accordance with the embodiments of the present disclosure, as discussed herein with reference to FIGS. 1 to 9. The embodiments herein may be implemented by computer software executable by the processor 1010 of the device 1000, or by hardware, or by a combination of software and hardware. The processor 1010 may be configured to implement various embodiments of the present disclosure. Furthermore, a combination of the processor 1010 and memory 1020 may form processing means 1050 adapted to implement various embodiments of the present disclosure.
[0341] The memory 1020 may be of any type suitable to the local technical network and may be implemented using any suitable data storage technology, such as a non-transitory computer readable storage medium, semiconductor-based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory and removable memory, as non-limiting examples. While only one memory 1020 is shown in the device 1000, there may be several physically distinct memory modules in the device 1000. The processor 1010 may be of any type suitable to the local technical network, and may include one or more of general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples. The device 1000 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
[0342] According to embodiments of the present disclosure, a terminal device comprising a circuitry is provided. The circuitry is configured to: receive, from a network device, a command indicating at least one of the following: a set of candidate cells to be measured, a set of reference signal (RS) resources to be measured, or an association between a measurement report configuration and at least one RS resource; generate a measurement report based on at least one of the following: a first relationship between a first number of candidate cells to be reported configured by the network device and a second number of candidate cells to be measured determined based on the command; or a second relationship between a third number of RS resources to be reported for a candidate cell configured by the network device and a fourth number of RS resources to be measured for a candidate cell determined based on the command; and transmit the measurement report to the network device. According to embodiments of the present disclosure, the circuitry may be configured to perform any method implemented by the terminal device as discussed above.
[0343] According to embodiments of the present disclosure, a terminal device comprising a circuitry is provided. The circuitry is configured to: receive, from a network device, configuration information comprising a set of reporting configurations, the set of reporting configurations comprising at least one of the following: a set of first numbers of candidate cells to be reported, a set of third numbers of reference signal (RS) resources to be reported for a candidate cell, a set of indications of whether a measurement result of a special cell (spCell) is to be reported in a measurement report, or a set of configurations, each configuration comprising at least one of the following: a first number, a third number or an indication; generate a measurement report based on a reporting configuration determined from the set of reporting configurations based on at least one of the following: a first number of the set of first numbers indicated by the network device, a third number of the set of third numbers indicated by the network device, an indication of the set of indications indicated by the network device, an identity of a configuration of the set of configurations indicated by the network device, a set of candidate cells to be measured indicated by the network device, a set of reference signal (RS) resources to be measured indicated by the network device, or a set of RS resources to be measured for a candidate cell indicated by the network device; and transmit the measurement report to the network device. According to embodiments of the present disclosure, the circuitry may be configured to perform any method implemented by the terminal device as discussed above.
[0344] According to embodiments of the present disclosure, a terminal device comprising a circuitry is provided. The circuitry is configured to: receive, from a network device, at least one configuration indicating a plurality of reference signal (RS) resources, each RS resource being associated with a first number of candidate cells to be reported and / or a third number of RS resources to be reported for a candidate cell; receive, from a network device, a command indicating an association between a measurement report configuration and an RS resource of the plurality of RS resources; and generate, by using the measurement report configuration, a measurement report based on a first number and / or a third number associated with the RS resource; and transmit the measurement report to the network device. According to embodiments of the present disclosure, the circuitry may be configured to perform any method implemented by the terminal device as discussed above.
[0345] According to embodiments of the present disclosure, a terminal device comprising a circuitry is provided. The circuitry is configured to: receive, from a network device, configuration information of at least one measurement report configuration, each measurement report configuration indicating at least one of the following: a plurality of candidate cells, or a plurality of reference signal (RS) resources; receive, from the network device, a command indicating at least one of the following: a set of candidate cells to be measured, or a set of reference signal (RS) resources to be measured; perform at least one of the following: applying the command to a first measurement report configuration of the at least one measurement report configurationēwherein at least part of the set of candidate cells are comprised in the plurality of candidate cells of the first measurement report configuration and / or at least part of the set of RS resources are comprised in the plurality of RS resources of the first measurement report configuration; or stopping measurements and / or reporting on a second measurement report configuration of the at least one measurement report configuration, wherein at least part of the set of candidate cells are not comprised in the plurality of candidate cells of the second measurement report configuration and / or at least part of the set of RS resources are not comprised in the plurality of RS resources of the second measurement report configuration. According to embodiments of the present disclosure, the circuitry may be configured to perform any method implemented by the terminal device as discussed above.
[0346] According to embodiments of the present disclosure, a network device comprising a circuitry is provided. The circuitry is configured to: transmit, to a terminal device, a command indicating at least one of the following: a set of candidate cells to be measured, a set of reference signal (RS) resources to be measured, or an association between a measurement report configuration and at least one RS resource; receive, from the terminal device, a measurement report generated by the terminal device based on at least one of the following: a first relationship between a first number of candidate cells to be reported configured by the network device and a second number of candidate cells to be measured determined based on the command; or a second relationship between a third number of RS resources to be reported for a candidate cell configured by the network device and a fourth number of RS resources to be measured for a candidate cell determined based on the command. According to embodiments of the present disclosure, the circuitry may be configured to perform any method implemented by the network device as discussed above.
[0347] According to embodiments of the present disclosure, a network device comprising a circuitry is provided. The circuitry is configured to: transmit, to a terminal device, configuration information comprising a set of reporting configurations, the set of reporting configurations comprising at least one of the following: a set of first numbers of candidate cells to be reported, a set of third numbers of reference signal (RS) resources to be reported for a candidate cell, a set of indications of whether a measurement result of a special cell (spCell) is to be reported in a measurement report, or a set of configurations, each configuration comprising at least one of the following: a first number, a third number or an indication; receive, from the terminal device a measurement report generated based on a reporting configuration determined from the set of reporting configurations based on at least one of the following: a first number of the set of first numbers indicated by the network device, a third number of the set of third numbers indicated by the network device, an indication of the set of indications indicated by the network device, an identity of a configuration of the set of configurations indicated by the network device, a set of candidate cells to be measured indicated by the network device, a set of reference signal (RS) resources to be measured indicated by the network device, or a set of RS resources to be measured for a candidate cell indicated by the network device. According to embodiments of the present disclosure, the circuitry may be configured to perform any method implemented by the network device as discussed above.
[0348] According to embodiments of the present disclosure, a network device comprising a circuitry is provided. The circuitry is configured to: transmit, to a terminal device, at least one configuration indicating a plurality of reference signal (RS) resources, each RS resource being associated with a first number of candidate cells to be reported and / or a third number of RS resources to be reported for a candidate cell; transmit, to the terminal device, a command indicating an association between a measurement report configuration and an RS resource of the plurality of RS resources; and receive, from the terminal device, a measurement report generated by using the measurement report configuration and based on a first number and / or a third number associated with the RS resource. According to embodiments of the present disclosure, the circuitry may be configured to perform any method implemented by the network device as discussed above.
[0349] The term “circuitry” used herein may refer to hardware circuits and / or combinations of hardware circuits and software. For example, the circuitry may be a combination of analog and / or digital hardware circuits with software / firmware. As a further example, the circuitry may be any portions of hardware processors with software including digital signal processor (s) , software, and memory (ies) that work together to cause an apparatus, such as a terminal device or a network device, to perform various functions. In a still further example, the circuitry may be hardware circuits and or processors, such as a microprocessor or a portion of a microprocessor, that requires software / firmware for operation, but the software may not be present when it is not needed for operation. As used herein, the term circuitry also covers an implementation of merely a hardware circuit or processor (s) or a portion of a hardware circuit or processor (s) and its (or their) accompanying software and / or firmware.
[0350] According to embodiments of the present disclosure, a terminal apparatus is provided. The terminal apparatus comprises means for receiving, from a network device, a command indicating at least one of the following: a set of candidate cells to be measured, a set of reference signal (RS) resources to be measured, or an association between a measurement report configuration and at least one RS resource; means for generating a measurement report based on at least one of the following: a first relationship between a first number of candidate cells to be reported configured by the network device and a second number of candidate cells to be measured determined based on the command; or a second relationship between a third number of RS resources to be reported for a candidate cell configured by the network device and a fourth number of RS resources to be measured for a candidate cell determined based on the command; and means for transmitting the measurement report to the network device. In some embodiments, the first apparatus may comprise means for performing the respective operations of the method 300. In some example embodiments, the first apparatus may further comprise means for performing other operations in some example embodiments of the method 300. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
[0351] According to embodiments of the present disclosure, a terminal apparatus is provided. The terminal apparatus comprises means for receiving, from a network device, configuration information comprising a set of reporting configurations, the set of reporting configurations comprising at least one of the following: a set of first numbers of candidate cells to be reported, a set of third numbers of reference signal (RS) resources to be reported for a candidate cell, a set of indications of whether a measurement result of a special cell (spCell) is to be reported in a measurement report, or a set of configurations, each configuration comprising at least one of the following: a first number, a third number or an indication; means for generating a measurement report based on a reporting configuration determined from the set of reporting configurations based on at least one of the following: a first number of the set of first numbers indicated by the network device, a third number of the set of third numbers indicated by the network device, an indication of the set of indications indicated by the network device, an identity of a configuration of the set of configurations indicated by the network device, a set of candidate cells to be measured indicated by the network device, a set of reference signal (RS) resources to be measured indicated by the network device, or a set of RS resources to be measured for a candidate cell indicated by the network device; and means for transmitting the measurement report to the network device. In some embodiments, the second apparatus may comprise means for performing the respective operations of the method 400. In some example embodiments, the second apparatus may further comprise means for performing other operations in some example embodiments of the method 400. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
[0352] According to embodiments of the present disclosure, a terminal apparatus is provided. The terminal apparatus comprises means for receiving, from a network device, at least one configuration indicating a plurality of reference signal (RS) resources, each RS resource being associated with a first number of candidate cells to be reported and / or a third number of RS resources to be reported for a candidate cell; means for receiving, from a network device, a command indicating an association between a measurement report configuration and an RS resource of the plurality of RS resources; and means for generating, by using the measurement report configuration, a measurement report based on a first number and / or a third number associated with the RS resource; and means for transmitting the measurement report to the network device. In some embodiments, the third apparatus may comprise means for performing the respective operations of the method 500. In some example embodiments, the third apparatus may further comprise means for performing other operations in some example embodiments of the method 500. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
[0353] According to embodiments of the present disclosure, a terminal apparatus is provided. The terminal apparatus comprises means for receiving, from a network device, configuration information of at least one measurement report configuration, each measurement report configuration indicating at least one of the following: a plurality of candidate cells, or a plurality of reference signal (RS) resources; means for receiving, from the network device, a command indicating at least one of the following: a set of candidate cells to be measured, or a set of reference signal (RS) resources to be measured; means for performing at least one of the following: applying the command to a first measurement report configuration of the at least one measurement report configurationēwherein at least part of the set of candidate cells are comprised in the plurality of candidate cells of the first measurement report configuration and / or at least part of the set of RS resources are comprised in the plurality of RS resources of the first measurement report configuration; or means for stopping measurements and / or reporting on a second measurement report configuration of the at least one measurement report configuration, wherein at least part of the set of candidate cells are not comprised in the plurality of candidate cells of the second measurement report configuration and / or at least part of the set of RS resources are not comprised in the plurality of RS resources of the second measurement report configuration. In some embodiments, the fourth apparatus may comprise means for performing the respective operations of the method 600. In some example embodiments, the fourth apparatus may further comprise means for performing other operations in some example embodiments of the method 600. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
[0354] According to embodiments of the present disclosure, a network apparatus is provided. The network apparatus comprises means for transmitting, to a terminal device, a command indicating at least one of the following: a set of candidate cells to be measured, a set of reference signal (RS) resources to be measured, or an association between a measurement report configuration and at least one RS resource; means for receiving, from the terminal device, a measurement report generated by the terminal device based on at least one of the following: a first relationship between a first number of candidate cells to be reported configured by the network device and a second number of candidate cells to be measured determined based on the command; or a second relationship between a third number of RS resources to be reported for a candidate cell configured by the network device and a fourth number of RS resources to be measured for a candidate cell determined based on the command. In some embodiments, the fifth apparatus may comprise means for performing the respective operations of the method 700. In some example embodiments, the fifth apparatus may further comprise means for performing other operations in some example embodiments of the method 700. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
[0355] According to embodiments of the present disclosure, a network apparatus is provided. The network apparatus comprises means for transmitting, to a terminal device, configuration information comprising a set of reporting configurations, the set of reporting configurations comprising at least one of the following: a set of first numbers of candidate cells to be reported, a set of third numbers of reference signal (RS) resources to be reported for a candidate cell, a set of indications of whether a measurement result of a special cell (spCell) is to be reported in a measurement report, or a set of configurations, each configuration comprising at least one of the following: a first number, a third number or an indication; means for receiving, from the terminal device a measurement report generated based on a reporting configuration determined from the set of reporting configurations based on at least one of the following: a first number of the set of first numbers indicated by the network device, a third number of the set of third numbers indicated by the network device, an indication of the set of indications indicated by the network device, an identity of a configuration of the set of configurations indicated by the network device, a set of candidate cells to be measured indicated by the network device, a set of reference signal (RS) resources to be measured indicated by the network device, or a set of RS resources to be measured for a candidate cell indicated by the network device. In some embodiments, the sixth apparatus may comprise means for performing the respective operations of the method 800. In some example embodiments, the sixth apparatus may further comprise means for performing other operations in some example embodiments of the method 800. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
[0356] According to embodiments of the present disclosure, a network apparatus is provided. The network apparatus comprises means for transmitting, to a terminal device, at least one configuration indicating a plurality of reference signal (RS) resources, each RS resource being associated with a first number of candidate cells to be reported and / or a third number of RS resources to be reported for a candidate cell; means for transmitting, to the terminal device, a command indicating an association between a measurement report configuration and an RS resource of the plurality of RS resources; and means for receiving, from the terminal device, a measurement report generated by using the measurement report configuration and based on a first number and / or a third number associated with the RS resource. In some embodiments, the seventh apparatus may comprise means for performing the respective operations of the method 900. In some example embodiments, the seventh apparatus may further comprise means for performing other operations in some example embodiments of the method 900. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
[0357] In summary, embodiments of the present disclosure provide the following aspects.
[0358] In an aspect, it is proposed a terminal device comprising: a processor configured to cause the terminal device to: receive, from a network device, a command indicating at least one of the following: a set of candidate cells to be measured, a set of reference signal (RS) resources to be measured, or an association between a measurement report configuration and at least one RS resource; generate a measurement report based on at least one of the following: a first relationship between a first number of candidate cells to be reported configured by the network device and a second number of candidate cells to be measured determined based on the command; or a second relationship between a third number of RS resources to be reported for a candidate cell configured by the network device and a fourth number of RS resources to be measured for a candidate cell determined based on the command; and transmit the measurement report to the network device.
[0359] In some embodiments, the first and / or the third number is configured by the network device via at least one of the following: a radio resource control (RRC) signalling, the command, a medium access control control element (MAC CE) used for activating a channel status information (CSI) report, or downlink control information (DCI) used for triggering a CSI report.
[0360] In some embodiments, the processor is further configured to cause the terminal device to: receive, from the network device, an indication of whether a measurement result of a special cell (spCell) is to be reported in the measurement report.
[0361] In some embodiments, the processor is further configured to cause the terminal device to: generate the measurement report based on the first number in accordance with a determination that the first relationship indicates the first number is smaller than or equal to the second number; and / or generate the measurement report based on the third number in accordance with a determination that the second relationship indicates the third number is smaller than or equal to the fourth number.
[0362] In some embodiments, the processor is further configured to cause the terminal device to: in accordance with a determination that the first relationship indicates the first number is larger than the second number, generate the measurement report based on measurement results of N candidate cells of the set of candidate cells, wherein N is one of the following: a pre-defined number, or the second number.
[0363] In some embodiments, the processor is further configured to cause the terminal device to: in accordance with a determination that the second relationship indicates the third number is larger than the fourth number, generate the measurement report based on measurement results of P RS resources for a candidate cell, wherein P is one of the following: a pre-defined number, the fourth number, or a minimum fourth number of RS resources to be measured for a candidate cell associated with the measurement report.
[0364] In some embodiments, the measurement report comprises a field indicating an identity of RS resource, and a bitwidth for the field is determined based on at least one of the following: a number of RS resources associated with the set of candidate cells to be measured indicated by the command, a number of RS resources of the set of RS resources to be measured indicated by the command, or a number of RS resources of the at least one RS resource indicated by the command.
[0365] In some embodiments, the processor is further configured to cause the terminal device to: obtain measurement results of N *P RS resources determined based on the command, wherein N is the second number, P is the fourth number; and generate the measurement report with L *M entries, wherein L is the first number and M is the third number, and wherein N *P entries of the L *M entries are used for indicating the measurement results of the N *P RS resources and the other entries are padded with default values.
[0366] In an aspect, it is proposed a terminal device comprising: a processor configured to cause the terminal device to: receive, from a network device, configuration information comprising a set of reporting configurations, the set of reporting configurations comprising at least one of the following: a set of first numbers of candidate cells to be reported, a set of third numbers of reference signal (RS) resources to be reported for a candidate cell, a set of indications of whether a measurement result of a special cell (spCell) is to be reported in a measurement report, or a set of configurations, each configuration comprising at least one of the following: a first number, a third number or an indication; generate a measurement report based on a reporting configuration determined from the set of reporting configurations based on at least one of the following: a first number of the set of first numbers indicated by the network device, a third number of the set of third numbers indicated by the network device, an indication of the set of indications indicated by the network device, an identity of a configuration of the set of configurations indicated by the network device, a set of candidate cells to be measured indicated by the network device, a set of reference signal (RS) resources to be measured indicated by the network device, or a set of RS resources to be measured for a candidate cell indicated by the network device; and transmit the measurement report to the network device.
[0367] In some embodiments, the determined reporting configuration comprises at least one of the following: a first number smaller than or equal to a number of candidate cells in the indicated set of candidate cells to be measured, a third number smaller than or equal to a number of RS resources in the indicated set of RS resources to be measured, or a third number smaller than or equal to a number of RS resources in the indicated set of RS resources to be measured for a candidate cell.
[0368] In some embodiments, the processor is further configured to cause the terminal device to: in accordance with a determination that there are more than one reporting configuration comprising a first number smaller than or equal to a number of candidate cells of the set of candidate cells, determine the reporting configuration from the more than one reporting configuration based on at least one of the following: values of first numbers of the more than one reporting configuration, identities of first numbers of the more than one reporting configuration, a capability of the terminal device on a maximum value of a product of a number of candidate cells to be reported and a number of RS resources to be reported for a candidate cell in a measurement report, a capability of the terminal device on a maximum value of a number of RS resources to be reported in a measurement report, a capability of the terminal device on a maximum value of a number of candidate cells to be reported in a measurement report, a capability of the terminal device on a maximum value of a number of RS resources to be reported for a candidate cell in a measurement report, or a determined third number.
[0369] In some embodiments, the processor is further configured to cause the terminal device to: in accordance with a determination that there are more than one reporting configuration comprising a third number smaller than or equal to a number of RS resources to be reported for a candidate cell, determine the reporting configuration from the more than one reporting configuration based on at least one of the following: values of third numbers of the more than one reporting configuration, identities of third numbers of the more than one reporting configuration, a capability of the terminal device on a maximum value of a product of a number of candidate cells to be reported and a number of RS resources to be reported for a candidate cell in a measurement report, a capability of the terminal device on a maximum value of a number of RS resources to be reported in a measurement report, a capability of the terminal device on a maximum value of a number of candidate cells to be reported in a measurement report, a capability of the terminal device on a maximum value of a number of RS resources to be reported for a candidate cell in a measurement report, or a determined first number.
[0370] In an aspect, it is proposed a terminal device comprising: a processor configured to cause the terminal device to: receive, from a network device, at least one configuration indicating a plurality of reference signal (RS) resources, each RS resource being associated with a first number of candidate cells to be reported and / or a third number of RS resources to be reported for a candidate cell; receive, from a network device, a command indicating an association between a measurement report configuration and an RS resource of the plurality of RS resources; and generate, by using the measurement report configuration, a measurement report based on a first number and / or a third number associated with the RS resource; and transmit the measurement report to the network device.
[0371] In some embodiments, the processor is further configured to cause the terminal device to: before receiving the command, generate a further measurement report based on at least one of the following: a first number of candidate cells to be reported associated with the measurement report configuration, a third number of RS resources to be reported for a candidate cell associated with the measurement report configuration, or an indication of whether a measurement result of a special cell (spCell) is to be reported in a measurement report; and transmit the further measurement report to the network device.
[0372] In some embodiments, the processor is further configured to cause the terminal device to: after receiving the command, ignore at least one of the following: the first number of candidate cells to be reported associated with the measurement report configuration, the third number of RS resources to be reported for a candidate cell associated with the measurement report configuration, or the indication of whether a measurement result of a spCell is to be reported in a measurement report.
[0373] In an aspect, it is proposed a terminal device comprising: a processor configured to cause the terminal device to: receive, from a network device, configuration information of at least one measurement report configuration, each measurement report configuration indicating at least one of the following: a plurality of candidate cells, or a plurality of reference signal (RS) resources; receive, from the network device, a command indicating at least one of the following: a set of candidate cells to be measured, or a set of reference signal (RS) resources to be measured; perform at least one of the following: applying the command to a first measurement report configuration of the at least one measurement report configurationēwherein at least part of the set of candidate cells are comprised in the plurality of candidate cells of the first measurement report configuration and / or at least part of the set of RS resources are comprised in the plurality of RS resources of the first measurement report configuration; or stopping measurements and / or reporting on a second measurement report configuration of the at least one measurement report configuration, wherein at least part of the set of candidate cells are not comprised in the plurality of candidate cells of the second measurement report configuration and / or at least part of the set of RS resources are not comprised in the plurality of RS resources of the second measurement report configuration.
[0374] In some embodiments, the processor is further configured to cause the terminal device to: deactivate the second measurement report configuration, or release the second measurement report configuration.
[0375] In some embodiments, the processor is further configured to cause the terminal device to: in accordance with a determination that all of the set of candidate cells are comprised in the plurality of candidate cells of the first measurement report and / or all of the set of RS resources are comprised in the plurality of RS resources of the first measurement report, apply the command based on a first application timing; and in accordance with a determination that part of the set of candidate cells are comprised in the plurality of candidate cells of the first measurement report and / or part of the set of RS resources are comprised in the plurality of RS resources of the first measurement report, apply the command based on a second application timing different from the first application timing.
[0376] In some embodiments, the second application timing is determined based on at least one of the following: a number of candidate cells of the set of candidate cells which are mot comprised in the plurality of candidate cells, or a number of RS resources of the set of RS resources which are mot comprised in the plurality of RS resources.
[0377] In an aspect, it is proposed a network device comprising: a processor configured to cause the network device to: transmit, to a terminal device, a command indicating at least one of the following: a set of candidate cells to be measured, a set of reference signal (RS) resources to be measured, or an association between a measurement report configuration and at least one RS resource; receive, from the terminal device, a measurement report generated by the terminal device based on at least one of the following: a first relationship between a first number of candidate cells to be reported configured by the network device and a second number of candidate cells to be measured determined based on the command; or a second relationship between a third number of RS resources to be reported for a candidate cell configured by the network device and a fourth number of RS resources to be measured for a candidate cell determined based on the command.
[0378] In some embodiments, the first and / or the third number is configured by the network device via at least one of the following: a radio resource control (RRC) signalling, the command, a medium access control control element (MAC CE) used for activating a channel status information (CSI) report, or downlink control information (DCI) used for triggering a CSI report.
[0379] In some embodiments, the processor is further configured to cause the network device to: transmit, to the terminal device, an indication of whether a measurement result of a special cell (spCell) is to be reported in the measurement report.
[0380] In some embodiments, the measurement report is generated based on the first number in accordance with a determination that the first relationship indicates the first number is smaller than or equal to the second number; and / or the measurement report is generated based on the third number in accordance with a determination that the second relationship indicates the third number is smaller than or equal to the fourth number.
[0381] In some embodiments, N is one of the following: a pre-defined number, or the second number.
[0382] In some embodiments, P is one of the following: a pre-defined number, the fourth number, or a minimum fourth number of RS resources to be measured for a candidate cell associated with the measurement report.
[0383] In some embodiments, the measurement report comprises a field indicating an identity of RS resource, and a bitwidth for the field is determined based on at least one of the following: a number of RS resources associated with the set of candidate cells to be measured indicated by the command, a number of RS resources of the set of RS resources to be measured indicated by the command, or a number of RS resources of the at least one RS resource indicated by the command.
[0384] In some embodiments, the measurement report comprises L *M entries, and N *P entries of the L *M entries are used for indicating the measurement results of N *P RS resources and the other entries are padded with default values, and wherein L is the first number, M is the third number, N is the second number, P is the fourth number.
[0385] In an aspect, it is proposed a network device comprising: a processor configured to cause the network device to: transmit, to a terminal device, configuration information comprising a set of reporting configurations, the set of reporting configurations comprising at least one of the following: a set of first numbers of candidate cells to be reported, a set of third numbers of reference signal (RS) resources to be reported for a candidate cell, a set of indications of whether a measurement result of a special cell (spCell) is to be reported in a measurement report, or a set of configurations, each configuration comprising at least one of the following: a first number, a third number or an indication; receive, from the terminal device a measurement report generated based on a reporting configuration determined from the set of reporting configurations based on at least one of the following: a first number of the set of first numbers indicated by the network device, a third number of the set of third numbers indicated by the network device, an indication of the set of indications indicated by the network device, an identity of a configuration of the set of configurations indicated by the network device, a set of candidate cells to be measured indicated by the network device, a set of reference signal (RS) resources to be measured indicated by the network device, or a set of RS resources to be measured for a candidate cell indicated by the network device.
[0386] In some embodiments, the determined reporting configuration comprises at least one of the following: a first number smaller than or equal to a number of candidate cells in the indicated set of candidate cells to be measured, a third number smaller than or equal to a number of RS resources in the indicated set of RS resources to be measured, or a third number smaller than or equal to a number of RS resources in the indicated set of RS resources to be measured for a candidate cell.
[0387] In an aspect, it is proposed a network device comprising: a processor configured to cause the network device to: transmit, to a terminal device, at least one configuration indicating a plurality of reference signal (RS) resources, each RS resource being associated with a first number of candidate cells to be reported and / or a third number of RS resources to be reported for a candidate cell; transmit, to the terminal device, a command indicating an association between a measurement report configuration and an RS resource of the plurality of RS resources; and receive, from the terminal device, a measurement report generated by using the measurement report configuration and based on a first number and / or a third number associated with the RS resource.
[0388] In some embodiments, the processor is further configured to cause the network device to: before transmitting the command, receive, from the terminal device, a further measurement report generated based on at least one of the following: a first number of candidate cells to be reported associated with the measurement report configuration, a third number of RS resources to be reported for a candidate cell associated with the measurement report configuration, or an indication of whether a measurement result of a special cell (spCell) is to be reported in a measurement report.
[0389] In an aspect, a terminal device comprises: at least one processor; and at least one memory coupled to the at least one processor and storing instructions thereon, the instructions, when executed by the at least one processor, causing the device to perform the method implemented by the terminal device discussed above.
[0390] In an aspect, a terminal device comprises: at least one processor; and at least one memory coupled to the at least one processor and storing instructions thereon, the instructions, when executed by the at least one processor, causing the device to perform the method implemented by the terminal device discussed above.
[0391] In an aspect, a terminal device comprises: at least one processor; and at least one memory coupled to the at least one processor and storing instructions thereon, the instructions, when executed by the at least one processor, causing the device to perform the method implemented by the terminal device discussed above.
[0392] In an aspect, a terminal device comprises: at least one processor; and at least one memory coupled to the at least one processor and storing instructions thereon, the instructions, when executed by the at least one processor, causing the device to perform the method implemented by the terminal device discussed above.
[0393] In an aspect, a network device comprises: at least one processor; and at least one memory coupled to the at least one processor and storing instructions thereon, the instructions, when executed by the at least one processor, causing the device to perform the method implemented by the network device discussed above.
[0394] In an aspect, a network device comprises: at least one processor; and at least one memory coupled to the at least one processor and storing instructions thereon, the instructions, when executed by the at least one processor, causing the device to perform the method implemented by the network device discussed above.
[0395] In an aspect, a network device comprises: at least one processor; and at least one memory coupled to the at least one processor and storing instructions thereon, the instructions, when executed by the at least one processor, causing the device to perform the method implemented by the network device discussed above.
[0396] In an aspect, a computer readable medium having instructions stored thereon, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the terminal device discussed above.
[0397] In an aspect, a computer readable medium having instructions stored thereon, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the terminal device discussed above.
[0398] In an aspect, a computer readable medium having instructions stored thereon, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the terminal device discussed above.
[0399] In an aspect, a computer readable medium having instructions stored thereon, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the terminal device discussed above.
[0400] In an aspect, a computer readable medium having instructions stored thereon, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the network device discussed above.
[0401] In an aspect, a computer readable medium having instructions stored thereon, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the network device discussed above.
[0402] In an aspect, a computer readable medium having instructions stored thereon, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the network device discussed above.
[0403] In an aspect, a computer program comprising instructions, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the terminal device discussed above.
[0404] In an aspect, a computer program comprising instructions, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the terminal device discussed above.
[0405] In an aspect, a computer program comprising instructions, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the terminal device discussed above.
[0406] In an aspect, a computer program comprising instructions, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the terminal device discussed above.
[0407] In an aspect, a computer program comprising instructions, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the network device discussed above.
[0408] In an aspect, a computer program comprising instructions, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the network device discussed above.
[0409] In an aspect, a computer program comprising instructions, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the network device discussed above.
[0410] Generally, various embodiments of the present disclosure 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. While various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representation, it will be appreciated that the blocks, apparatus, systems, techniques or methods described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
[0411] The present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer readable storage medium. The computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target real or virtual processor, to carry out the process or method as described above with reference to FIGS. 1 to 10. Generally, program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types. The functionality of the program modules may be combined or split between program modules as desired in various embodiments. Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.
[0412] Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
[0413] The above program code may be embodied on a machine readable medium, which may be any tangible medium that may contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine readable medium may be a machine readable signal medium or a machine readable storage medium. A machine readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the machine readable storage medium would include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM) , a read-only memory (ROM) , an erasable programmable read-only memory (EPROM or Flash memory) , an optical fiber, a portable compact disc read-only memory (CD-ROM) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
[0414] Further, while operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are contained in the above discussions, these should not be construed as limitations on the scope of the present disclosure, but rather as descriptions of features that may be specific to particular embodiments. Certain features that are described in the context of separate embodiments may also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment may also be implemented in multiple embodiments separately or in any suitable sub-combination.
[0415] Although the present disclosure has been described in language specific to structural features and / or methodological acts, it is to be understood that the present disclosure defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.
Claims
A terminal device comprising:a processor configured to cause the terminal device to:receive, from a network device, a command indicating at least one of the following:a set of candidate cells to be measured,a set of reference signal (RS) resources to be measured, oran association between a measurement report configuration and at least one RS resource;generate a measurement report based on at least one of the following:a first relationship between a first number of candidate cells to be reported configured by the network device and a second number of candidate cells to be measured determined based on the command; ora second relationship between a third number of RS resources to be reported for a candidate cell configured by the network device and a fourth number of RS resources to be measured for a candidate cell determined based on the command; andtransmit the measurement report to the network device.The terminal device of claim 1, wherein the first and / or the third number is configured by the network device via at least one of the following:a radio resource control (RRC) signalling,the command,a medium access control control element (MAC CE) used for activating a channel status information (CSI) report, ordownlink control information (DCI) used for triggering a CSI report.The terminal device of claim 1, wherein the processor is further configured to cause the terminal device to:receive, from the network device, an indication of whether a measurement result of a special cell (spCell) is to be reported in the measurement report.The terminal device of claim 1, wherein the processor is further configured to cause the terminal device to:generate the measurement report based on the first number in accordance with a determination that the first relationship indicates the first number is smaller than or equal to the second number; and / orgenerate the measurement report based on the third number in accordance with a determination that the second relationship indicates the third number is smaller than or equal to the fourth number.The terminal device of claim 1, wherein the processor is further configured to cause the terminal device to:in accordance with a determination that the first relationship indicates the first number is larger than the second number, generate the measurement report based on measurement results of N candidate cells of the set of candidate cells, wherein N is one of the following:a pre-defined number, orthe second number.The terminal device of claim 1, wherein the processor is further configured to cause the terminal device to:in accordance with a determination that the second relationship indicates the third number is larger than the fourth number, generate the measurement report based on measurement results of P RS resources for a candidate cell, wherein P is one of the following:a pre-defined number,the fourth number, ora minimum fourth number of RS resources to be measured for a candidate cell associated with the measurement report.The terminal device of claim 1, wherein the measurement report comprises a field indicating an identity of RS resource, and a bitwidth for the field is determined based on at least one of the following:a number of RS resources associated with the set of candidate cells to be measured indicated by the command,a number of RS resources of the set of RS resources to be measured indicated by the command, ora number of RS resources of the at least one RS resource indicated by the command.The terminal device of claim 1, wherein the processor is further configured to cause the terminal device to:obtain measurement results of N *P RS resources determined based on the command, wherein N is the second number, P is the fourth number; andgenerate the measurement report with L *M entries, wherein L is the first number and M is the third number, and wherein N *P entries of the L *M entries are used for indicating the measurement results of the N *P RS resources and the other entries are padded with default values.A terminal device comprising:a processor configured to cause the terminal device to:receive, from a network device, configuration information comprising a set of reporting configurations, the set of reporting configurations comprising at least one of the following:a set of first numbers of candidate cells to be reported,a set of third numbers of reference signal (RS) resources to be reported for a candidate cell,a set of indications of whether a measurement result of a special cell (spCell) is to be reported in a measurement report, ora set of configurations, each configuration comprising at least one of the following: a first number, a third number or an indication;generate a measurement report based on a reporting configuration determined from the set of reporting configurations based on at least one of the following:a first number of the set of first numbers indicated by the network device,a third number of the set of third numbers indicated by the network device,an indication of the set of indications indicated by the network device,an identity of a configuration of the set of configurations indicated by the network device,a set of candidate cells to be measured indicated by the network device,a set of reference signal (RS) resources to be measured indicated by the network device, ora set of RS resources to be measured for a candidate cell indicated by the network device; andtransmit the measurement report to the network device.The terminal device of claim 9, wherein the determined reporting configuration comprises at least one of the following:a first number smaller than or equal to a number of candidate cells in the indicated set of candidate cells to be measured,a third number smaller than or equal to a number of RS resources in the indicated set of RS resources to be measured, ora third number smaller than or equal to a number of RS resources in the indicated set of RS resources to be measured for a candidate cell.The terminal device of claim 9, wherein the processor is further configured to cause the terminal device to:in accordance with a determination that there are more than one reporting configuration comprising a first number smaller than or equal to a number of candidate cells of the set of candidate cells, determine the reporting configuration from the more than one reporting configuration based on at least one of the following:values of first numbers of the more than one reporting configuration,identities of first numbers of the more than one reporting configuration,a capability of the terminal device on a maximum value of a product of a number of candidate cells to be reported and a number of RS resources to be reported for a candidate cell in a measurement report,a capability of the terminal device on a maximum value of a number of RS resources to be reported in a measurement report,a capability of the terminal device on a maximum value of a number of candidate cells to be reported in a measurement report,a capability of the terminal device on a maximum value of a number of RS resources to be reported for a candidate cell in a measurement report, ora determined third number.The terminal device of claim 9, wherein the processor is further configured to cause the terminal device to:in accordance with a determination that there are more than one reporting configuration comprising a third number smaller than or equal to a number of RS resources to be reported for a candidate cell, determine the reporting configuration from the more than one reporting configuration based on at least one of the following:values of third numbers of the more than one reporting configuration,identities of third numbers of the more than one reporting configuration,a capability of the terminal device on a maximum value of a product of a number of candidate cells to be reported and a number of RS resources to be reported for a candidate cell in a measurement report,a capability of the terminal device on a maximum value of a number of RS resources to be reported in a measurement report,a capability of the terminal device on a maximum value of a number of candidate cells to be reported in a measurement report,a capability of the terminal device on a maximum value of a number of RS resources to be reported for a candidate cell in a measurement report, ora determined first number.A terminal device comprising:a processor configured to cause the terminal device to:receive, from a network device, at least one configuration indicating a plurality of reference signal (RS) resources, each RS resource being associated with a first number of candidate cells to be reported and / or a third number of RS resources to be reported for a candidate cell;receive, from a network device, a command indicating an association between a measurement report configuration and an RS resource of the plurality of RS resources; andgenerate, by using the measurement report configuration, a measurement report based on a first number and / or a third number associated with the RS resource; andtransmit the measurement report to the network device.The terminal device of claim 13, wherein the processor is further configured to cause the terminal device to:before receiving the command, generate a further measurement report based on at least one of the following: a first number of candidate cells to be reported associated with the measurement report configuration, a third number of RS resources to be reported for a candidate cell associated with the measurement report configuration, or an indication of whether a measurement result of a special cell (spCell) is to be reported in a measurement report; andtransmit the further measurement report to the network device.The terminal device of claim 13, wherein the processor is further configured to cause the terminal device to:after receiving the command, ignore at least one of the following: the first number of candidate cells to be reported associated with the measurement report configuration, the third number of RS resources to be reported for a candidate cell associated with the measurement report configuration, or the indication of whether a measurement result of a spCell is to be reported in a measurement report.A terminal device comprising:a processor configured to cause the terminal device to:receive, from a network device, configuration information of at least one measurement report configuration, each measurement report configuration indicating at least one of the following:a plurality of candidate cells, ora plurality of reference signal (RS) resources;receive, from the network device, a command indicating at least one of the following:a set of candidate cells to be measured, ora set of reference signal (RS) resources to be measured;perform at least one of the following:applying the command to a first measurement report configuration of the at least one measurement report configuration, wherein at least part of the set of candidate cells are comprised in the plurality of candidate cells of the first measurement report configuration and / or at least part of the set of RS resources are comprised in the plurality of RS resources of the first measurement report configuration; orstopping measurements and / or reporting on a second measurement report configuration of the at least one measurement report configuration, wherein at least part of the set of candidate cells are not comprised in the plurality of candidate cells of the second measurement report configuration and / or at least part of the set of RS resources are not comprised in the plurality of RS resources of the second measurement report configuration.The terminal device of claim 16, wherein the processor is further configured to cause the terminal device to:deactivate the second measurement report configuration, orrelease the second measurement report configuration.The terminal device of claim 16, wherein the processor is further configured to cause the terminal device to:in accordance with a determination that all of the set of candidate cells are comprised in the plurality of candidate cells of the first measurement report and / or all of the set of RS resources are comprised in the plurality of RS resources of the first measurement report, apply the command based on a first application timing; andin accordance with a determination that part of the set of candidate cells are comprised in the plurality of candidate cells of the first measurement report and / or part of the set of RS resources are comprised in the plurality of RS resources of the first measurement report, apply the command based on a second application timing different from the first application timing.The terminal device of claim 18, wherein the second application timing is determined based on at least one of the following:a number of candidate cells of the set of candidate cells which are mot comprised in the plurality of candidate cells, ora number of RS resources of the set of RS resources which are mot comprised in the plurality of RS resources.A network device comprising:a processor configured to cause the network device to:transmit, to a terminal device, a command indicating at least one of the following:a set of candidate cells to be measured,a set of reference signal (RS) resources to be measured, oran association between a measurement report configuration and at least one RS resource;receive, from the terminal device, a measurement report generated by the terminal device based on at least one of the following:a first relationship between a first number of candidate cells to be reported configured by the network device and a second number of candidate cells to be measured determined based on the command; ora second relationship between a third number of RS resources to be reported for a candidate cell configured by the network device and a fourth number of RS resources to be measured for a candidate cell determined based on the command.
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