Devices and methods for communication
By implementing threshold-based measurement reporting in terminal and network devices, the challenges of beam management in communication technologies are addressed, leading to improved channel measurement and reporting efficiency.
Patent Information
- Application Number
- PCT/CN2024/084605
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-10-02
AI Technical Summary
Existing communication technologies, such as MIMO, require further enhancement in beam management for improved performance, particularly in channel measurement and reporting.
A terminal device and network device are equipped with processors to determine and transmit/receive measurement reports with specific conditions, ensuring that the difference between measurement results is within a threshold or range, enhancing channel measurement accuracy.
This approach improves channel measurement and reporting efficiency, allowing for more precise beam management and communication performance enhancement.
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Figure CN2024084605_02102025_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 channel measurement and report.BACKGROUND
[0003] Several technologies have been proposed to improve communication performances. For example, multi-input multi-output (MIMO) has been proposed. MIMO includes features that facilitate utilization of a large number of antenna elements at base station for both sub-6GHz and over-6GHz frequency bands. Enhancement for beam management needs to be further studied.SUMMARY
[0004] In general, embodiments of the present disclosure provide a solution on channel measurement and report.
[0005] In a first aspect, there is provided a terminal device. The terminal device comprises: a processor, configured to cause the terminal device to: determine whether at least one condition for measurement report is satisfied; and in accordance with a determination that the at least one condition is satisfied, transmit measurement report to a network device, wherein the measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of measurement resource corresponds to one indication of measurement result, and a difference between values of measurement results in the measurement report is no larger than or less than a first threshold, or the values of measurement results in the measurement report is within a first range.
[0006] In a second aspect, there is provided a network device. The network device comprises: a processor, configured to cause the network device to: in accordance with a determination that at least one condition is satisfied, receive measurement report from a terminal device, wherein the measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of measurement resource corresponds to one indication of measurement result, and a difference between values of measurement results in the measurement report is no larger than or less than a first threshold, or the values of measurement results in the measurement report is within a first range.
[0007] In a third aspect, there is provided a communication method performed by a terminal device. The method comprises: determining whether at least one condition for measurement report is satisfied; and in accordance with a determination that the at least one condition is satisfied, transmitting measurement report to a network device, wherein the measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of measurement resource corresponds to one indication of measurement result, and aing difference between values of measurement results in the measurement report is no larger than or less than a first threshold, or thing values of measurement results in the measurement report is within a first range.
[0008] In a fourth aspect, there is provided a communication method performed by a network device. The method comprises: in accordance with a determination that at least one condition is satisfied, receiving measurement report from a terminal device, wherein the measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of measurement resource corresponds to one indication of measurement result, and a difference between values of measurement results in the measurement report is no larger than or less than a first threshold, or the values of measurement results in the measurement report is within a first range.
[0009] In a fifth 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 third, or fourth aspect.
[0010] Other features of the present disclosure will become easily comprehensible through the following description.BRIEF DESCRIPTION OF THE DRAWINGS
[0011] 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:
[0012] FIG. 1A to FIG. 1C illustrate example communication environment in which example embodiments of the present disclosure can be implemented;
[0013] FIG. 2 illustrates a signaling flow of measurement report in accordance with some embodiments of the present disclosure;
[0014] FIG. 3 illustrates a schematic diagram of differential values in accordance with some embodiments of the present disclosure;
[0015] FIG. 4 illustrates a schematic diagram of measurement report in accordance with some embodiments of the present disclosure;
[0016] FIG. 5 illustrates a schematic diagram of different parts of measurement report in accordance with some embodiments of the present disclosure;
[0017] FIG. 6 illustrates a flowchart of a communication method implemented at a terminal device according to some example embodiments of the present disclosure;
[0018] FIG. 7 illustrates a flowchart of a communication method implemented at a network device according to some example embodiments of the present disclosure; and
[0019] FIG. 8 illustrates a simplified block diagram of an apparatus that is suitable for implementing example embodiments of the present disclosure.
[0020] Throughout the drawings, the same or similar reference numerals represent the same or similar element.DETAILED DESCRIPTION
[0021] 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.
[0022] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skills in the art to which this disclosure belongs.
[0023] 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 has ‘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.
[0024] 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.
[0025] 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.
[0026] 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 52.6GHz) , 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.
[0027] 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.
[0028] 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.
[0029] 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.
[0030] 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.
[0031] 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.
[0032] In the context of the present application, the terms “uplink channel” , “uplink resource” , “physical uplink control channel (PUCCH) ” , “PUCCH” , “physical uplink shared channel (PUSCH) ” and “uplink control information (UCI) ” are optional examples and applicable in embodiments of the present disclosure the present disclosure. The terms “TCI state” , “set of QCL parameter (s) ” , “QCL parameter (s) ” , “QCL assumption” and “QCL configuration” are optional examples and applicable in embodiments of the present disclosure the present disclosure. The terms “TCI field” , “TCI state field” , and “transmission configuration indicator” are optional examples and applicable in embodiments of the present disclosure the present disclosure. The terms “DCI” and “DCI format” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In some embodiments, the embodiments in this disclosure can be applied to PDSCH and PUSCH scheduling, and in the following, PDSCH scheduling is described as examples. For example, the embodiments in this disclosure can be applied to PUSCH by replacing “transmit” to “receive” and / or “receive” to “transmit” . The terms “PDSCH” and “PUSCH” are optional examples and applicable in embodiments of the present disclosure the present disclosure. The terms “transmit” and “receive” are optional examples and applicable in embodiments of the present disclosure the present disclosure. The terms “precoding matrix” , “precoding” , “beam” , “beamforming” and “precoder” are optional examples and applicable in embodiments of the present disclosure the present disclosure. The terms “antenna” and “antenna port” are optional examples and applicable in embodiments of the present disclosure the present disclosure. The terms “transmission” , “transmitting” , “Tx” and “TX” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0033] In the context of the present application, the terms “signaling” , “message” , “configuration” , “request” , “response” , “information” and “signal” , “packet” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In the context of the present application, the terms “node” , “device” , “apparatus” “function” and “function entity” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In the context of the present application, the terms “chain” , “Tx chain” , “transmission chain” , “transmit chain” , “transmitting chain” , “Tx” , “transmission” , “transmitting” , “transmit” , “antenna port” , “port” and “antenna” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In the context of the present application, the terms “precoder” , “precoding” , “precoding matrix” , “beam” , “beamforming” , “vector” , “basis” , “spatial-related vector” , “spatial-related basis” , “spatial-related basis vector” , “codebook” , “UL codebook” , “spatial domain vector” , “spatial domain-related information” , “SD-related information” , “spatial relation information” , “spatial relation info” , “spatial filter” , “transmission spatial filter” , “transmitting spatial filter” , “Tx spatial filter” , “uplink spatial filter” , “spatial domain filter” , “transmission filter” , “precoding information” , “precoding information and number of layers” , “precoding matrix indicator (PMI) ” , “precoding matrix indicator” , “transmission precoding matrix indicator” , “precoding matrix indication” , “transmission configuration indicator state (TCI state) ” , “DL TCI state” , “UL TCI state” , “joint TCI state” , “transmission configuration indicator” , “quasi co-location (QCL) ” , “quasi-co-location” , “QCL parameter” , “QCL assumption” , “QCL relationship” and “spatial relation” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0034] In the context of the present application, the terms “transmission and reception point (TRP) ” , “TCI” , “panel” , “SRS resource set” , “antenna port group” , “TCI state” , “control-resource set, CORESET” , “CORESET pool” , “uplink TCI state” , “downlink TCI state” , “joint TCI state” , “separate TCI state” , “panel” , “SRS resource set” , “antenna port group” and other similar expressions are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0035] In the context of the present application, the terms “vector” , “vectors” , “bases” and “basis” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In the context of the present application, the terms “uplink RS” , “sounding reference signal” and “SRS” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0036] In the context of the present application, the terms “index” , “indicator” , “indication” , “field” , “bit field” and “bitmap” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0037] In the context of the present application, the terms “at least one first measurement report” and “first measurement report” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In the context of the present application, the terms “at least one second measurement report” and “second measurement report” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In the context of the present application, the terms “at least one measurement report” and “measurement report” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0038] In the context of the present application, the terms “first information set” , “first part” , “first part of measurement report” , “first uplink channel” , “first uplink resource” , “notification of the measurement report” , “notification of transmission of measurement report” , “request of transmission of measurement report” and “triggering of transmission of measurement report” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In the context of the present application, the terms “second information set” , “second part” , “second part of measurement report” , “second uplink channel” , and “second uplink resource” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In the context of the present application, the terms “third information set” , “third part” , “third part of measurement report” , “third uplink channel” , and “third uplink resource” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0039] In the context of the present application, the terms “uplink channel” and “uplink resource” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In the context of the present application, the terms “element of indication field” , “parameter” and “indication” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In the context of the present application, the terms “associated with” , “corresponding to” , “correspond to” and “comprise” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0040] Principles and implementations of the present disclosure will be described in detail below with reference to the figures.
[0041] FIG. 1A, FIG. 1B and FIG. 1C illustrate schematic diagram of an example communication environment 100 in which example embodiments of the present disclosure can be implemented. In the communication environment 100, a plurality of communication devices, including a terminal device 110 and a network device 120, can communicate with each other.
[0042] In the example of FIG. 1A, FIG. 1B or FIG. 1C, the terminal device 110 may be a UE and the network device 120 may be a base station serving the UE. The serving area of the network device 120 may be called a cell 102.
[0043] As shown in FIG. 1B, the network device 120 may communicate with the terminal device 110 via at least one of the TRPs / panels 130-1, 130-2, 130-3 and 130-4. In the following text, the TRP / panel 130-1 may be also referred to as the first TRP / panel, the TRP / panel 130-2 may be also referred to as the second TRP / panel, the TRP / panel 130-3 may be also referred to as the third TRP / panel and the TRP / panel 130-4 may be also referred to as the fourth TRP / panel. Each of the TRPs / panels 130 may provide a plurality of beams for communication with the terminal device 110. It is noted that the number of TRPs / panels shown in FIG. 1B is only an example not limitation.
[0044] For example, the network device 120 may be configured with at least one of four TRPs / panels 130-1, 130-2, 130-3 and 130-4 (collectively referred to as TRPs 130 or individually referred to as TRP 130) . It is to be understood that the number of network devices, terminal devices and TRPs as shown in FIG. 1B is only for the purpose of illustration without suggesting any limitations to the present disclosure. The network 100 may include any suitable number of devices adapted for implementing embodiments of the present disclosure. Although not shown, it would be appreciated that one or more additional devices may be located in the cell 102, and one or more additional cells may be deployed in the communication environment 100. It is noted that although illustrated as a network device, the network device 120 may be another device than a network device. Although illustrated as a terminal device, the terminal device 110 may be other device than a terminal device. The term “TRP” refers to an antenna array (with one or more antenna elements) available to the network device located at a specific geographical location. For example, a network device may be coupled with multiple TRPs in different geographical locations to achieve better coverage. For another example, a network device may be implemented with multiple panels or multiple groups of antenna ports / elements in same geographical location. It is to be understood that the TRP can also be referred to as a “panel” , which also refers to an antenna array (with one or more antenna elements) or a group of antennas.
[0045] In the specific example of communication environment 100, a link from the terminal device 110 to the network device 120 is referred to as uplink, while a link from the network device 120 to the terminal device 110 is referred to as a downlink. Further, MIMO is supported in the communication environment 100. For example, the network device 120 and the terminal device 110 may communicate with each other via different beams to enable a directional communication. For another example, the network device 120 and the terminal device 110 may communicate with each other based on a plurality of antenna ports and / or a plurality of beams and / or a plurality of TCI states (e.g. a plurality of downlink TCI states and / or a plurality of joint TCI states and / or a plurality of uplink TCI states) . In downlink, the network device 120 is a transmitting (TX) device (or a transmitter) and the terminal device 110 is a receiving (RX) device (or a receiver) . In downlink, the network device 120 may transmit downlink transmission to the terminal device 110 via one or more beams or one or more TCI states (or downlink TCI states or joint TCI states) . For example, as illustrated in FIG. 1C, the network device 120 transmits downlink transmission to the terminal device 110 via a plurality of beams and / or a plurality of TCI states (e.g. a plurality of downlink TCI states and / or a plurality of joint TCI states) . Correspondingly, in uplink, the network device 120 is a RX device (or a receiver) and the terminal device 110 is a TX device (or a transmitter) . In uplink, the terminal device 110 may transmit uplink transmission to the network device 120 via one or more beams or one or more TCI states (or uplink TCI states or joint TCI states) . For example, as illustrated in FIG. 1C, the terminal device 110 transmits uplink transmission to the network device 120 via a plurality of beams and / or a plurality of TCI states (e.g. a plurality of uplink TCI states and / or a plurality of joint TCI states) .
[0046] It is to be understood that the number of devices and their connections shown in FIG. 1A, FIG. 1B or FIG. 1C 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 example embodiments of the present disclosure. Although not shown, it would be appreciated that one or more additional devices may be located in the cell 102, and one or more additional cells may be deployed in the communication environment 100. It is noted that although illustrated as a network device, the network device 120 may be another device than a network device. Although illustrated as a terminal device, the terminal device 110 may be other device than a terminal device.
[0047] In the following, for the purpose of illustration, some example embodiments are described with the terminal device 110 operating as a UE and the network device 120 operating as a base station. However, in some example embodiments, operations described in connection with a terminal device may be implemented at a network device or other device, and operations described in connection with a network device may be implemented at a terminal device or other device.
[0048] In some example embodiments, if the terminal device 110 is a terminal device and the network device 120 is a network device, a link from the network device 120 to the terminal device 110 is referred to as a downlink (DL) , while a link from the terminal device 110 to the network device 120 is referred to as an uplink (UL) . In DL, the network device 120 is a transmitting (TX) device (or a transmitter) and the terminal device 110 is a receiving (RX) device (or a receiver) . In UL, the terminal device 110 is a TX device (or a transmitter) and the network device 120 is a RX device (or a receiver) .
[0049] 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.
[0050] In the context of the present application, the terms “TCI” , “TCI state” , “uplink TCI state” , “downlink TCI state” , “joint TCI state” , “downlink or joint TCI state” , “spatial domain filter” , “spatial transmission filter” , “spatial transmitting filter” , “spatial reception filter” , “spatial receiving filter” , “spatial relation information” , “spatial relation info” , “spatial domain information” , “spatial filter” , “spatial information” , “set of QCL parameter (s) ” , “QCL parameter (s) ” , “QCL assumption” , “beam” and “QCL configuration” are optional examples and applicable in embodiments of the present disclosure the present disclosure. The terms “TCI field” , “TCI state field” , and “transmission configuration indicator” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0051] In the context of the present application, the terms “precoding matrix” , “precoding” , “beam” , “beamforming” , “vector” , “first vector” , “first basis” , “first basis vector” , “codebook” and “precoder” are optional examples and applicable in embodiments of the present disclosure the present disclosure. The terms “vector” , “bases” and “basis” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0052] In the context of the present application, the terms “single TRP” , “single TCI state” , “single TCI” , “S-TCI” , “single CORESET” , “single control resource set pool” , “single value of CORESET pool index” , “single CORESET pool index” , “no configuration of CORESET pool index” , “S-TRP” and “S-TCI state” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0053] In the context of the present application, the terms “multiple TRPs” , “multiple TCI states” , “multiple CORESETs” and “multiple control resource set pools” , “multi-TRP” , “multi-TCI state” , “multi-TCI” , “multi-CORESET” , “multiple values of CORESET Pool index” , “multiple CORESET Pool indexes” and “multi-control resource set pool” , “MTRP” and “M-TCI” , “M-TPR” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0054] In the context of the present application, the terms “synchronization signal (SS) and physical broadcast channel (PBCH) block” , “PBCH block” , “SS / PBCH block” , “synchronization signal block” , “synchronization signal block resource” , “SSB resource” , “SS / PBCH block resource” and “SSB” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0055] In the context of the present application, the terms “pool” , “set” , “subset” , “group” , “unit” and “subgroup” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0056] In the context of the present application, the terms “index” , “indicator” , “indication” , “field” , “bit field” and “bitmap” are optional examples and applicable in embodiments of the present disclosure the present disclosure. The terms “physical resource block” , “resource block” , “PRB” and “RB” are optional examples and applicable in embodiments of the present disclosure the present disclosure. The terms “bit size” , “size of bits” , “number of bits” , “size of field” , “bitwidth” and “field size” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0057] In the context of the present application, the terms “reporting” , “report” and “feedback” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In the context of the present application, the terms “based on” , “correspond to” , “corresponding to” and “associated with” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0058] In the context of the present application, the terms “reference signal” , “RS” , “channel state information reference signal” , “reference signal resource” , “reference signal ports” , “SRS resource” , “SRS ports” , “ports” , “antenna ports” , “PUSCH ports” and “SRS” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0059] In the context of the present application, the terms “ports” , “antenna ports” , “SRS ports” , “reference signal port” , “reference signal ports” , “port, “antenna port” and “SRS port” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0060] In the context of the present application, the terms “element of indication field” , “parameter” and “indication” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0061] In the context of the present application, the terms “reference signal received power” , “RSRP” , “layer-1 RSRP” , “L1-RSRP” , “filtered RSRP” , “layer-3 RSRP” and “L3-RSRP” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In the context of the present application, the terms “signal to interference plus noise ratio” , “SINR” , “layer-1 SINR” , “L1-SINR” , “filtered SINR” , “layer-3 SINR” and “L3-SINR” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0062] In the context of the present application, the terms “identify” , “indicator” , “indication” and “ID” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0063] In the context of the present application, the terms “gap value” , “gap” , “value of gap” , “threshold” , “value of threshold” , “threshold value” , “first threshold value” , “first threshold” and “value of the first threshold” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0064] In the context of the present application, the terms “physical cell identity” , “PCI” , “cell identity” , “cell ID” , “cell” , “value of cell ID” , “component carrier” , “CC” and “value of PCI” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0065] In the context of the present application, the terms “a first cell” , “a serving cell” “a first value of physical cell identity (PCI) ” , “a first value of PCI” , “a first cell identity” , “a first component carrier” , “a first CC” and “a cell with serving cell PCI” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0066] In the context of the present application, the terms “PCI different from the serving cell” , “an additional PCI” , “a second PCI” , “a second cell” , “a cell different from the serving cell” , “a second value of PCI” , “a second cell identity” , “a second component carrier” , “a second CC” and “a cell with additional PCI” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0067] In the context of the present application, the terms “condition” , “event” , “triggering condition” , “triggering event” , “initiated condition” and “initiated event” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0068] In the context of the present application, the terms “UE triggered” , “event driven” , “UE initiated” , “event initiated” and “event triggered” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0069] In the context of the present application, the terms “physical uplink shared channel” , “PUSCH” , “uplink shared channel” , “ULSCH” and “UL-SCH” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0070] In addition to normal data communications, the network device 120 may send a RS to the terminal device 110 in a downlink (DL) . Similarly, the terminal device 110 may transmit a RS to the network device 120 in an uplink (UL) . Generally speaking, a RS is a signal sequence (also referred to as “RS sequence” ) that is known by both the network device 120 and the terminal devices 110. For example, a RS sequence may be generated and transmitted by the network device 120 based on a certain rule and the terminal device 110 may deduce the RS sequence based on the same rule. For another example, a RS sequence may be generated and transmitted by the terminal device 110 based on a certain rule and the network device 120 may deduce the RS sequence based on the same rule. Examples of the RS may include but are not limited to downlink or uplink Demodulation Reference Signal (DMRS) , CSI-RS, Sounding Reference Signal (SRS) , Phase Tracking Reference Signal (PTRS) , Tracking Reference Signal (TRS) , fine time-frequency Tracking Reference Signal (TRS) , CSI-RS for tracking, Positioning Reference Signal (PRS) and so on.
[0071] The network device 120 may communicate data and control information to the terminal device 110 via a plurality of beams (also referred to as “DL beams” ) or based on at least one TCI state. For example, the at least one TCI state may be downlink TCI state or joint TCI state or downlink-Or-Joint-TCI-State. The terminal device 110 may also communicate data and control information to the network device 120 via a plurality of beams (also referred to as “UL beams” ) or based on at least one spatial relation information or based on at least one TCI state. For example, the at least one TCI state may be uplink TCI state or joint TCI state or downlink-Or-Joint-TCI-State. In some example embodiments, a beam is also defined and indicated by parameters of a transmission configuration indicator. For example, there may be a transmission configuration indicator (TCI) field in DCI. A value of the TCI field may be referred to as a “TCI codepoint” . In some embodiments, a TCI codepoint may indicate or comprise one or more TCI states. For example, one TCI codepoint may indicate one or two downlink TCI states. For another example, one TCI codepoint may indicate one or two uplink TCI states. For another example, one TCI codepoint may indicate one or two joint TCI states. For another example, one TCI codepoint may indicate one or two downlink or joint TCI states. For another example, one TCI codepoint may indicate one or two downlink TCI states and one or two uplink TCI states. For another example, one TCI codepoint may indicate one or two downlink or joint TCI states and one or two uplink TCI states. In some embodiments, each TCI state contains or comprises parameters for configuring a quasi co-location (QCL) relationship between one or two DL reference signals and / or one or two UL reference signals and at least one of: the DMRS ports of the PDSCH, the DMRS ports of PDCCH, the DMRS ports of PUSCH, the DMRS ports of PUCCH, the SRS ports of a SRS resource or the CSI-RS ports of a CSI-RS resource.
[0072] 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 at least one of 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.
[0073] Reference is made to FIG. 2, which illustrates a signaling flow 200 of measurement report in accordance with some embodiments of the present disclosure. For the purposes of discussion, the signaling flow 200 will be discussed with reference to FIG. 1A or FIG. 1B or FIG. 1C, for example, by using the terminal device 110 and the network device 120.
[0074] In some embodiments, the network device 120 may transmit (2010) at least one configuration for a measurement report (e.g. a first measurement report or a second measurement report) to the terminal device 110. In other words, the terminal device 110 may receive (2010) the at least one configuration for the measurement report. The at least one configuration may include one or more of: a maximum number of resources, a minimum number of resources in the measurement report.
[0075] The terminal device 110 determines (2020) whether at least one condition for measurement report is satisfied. In some embodiments, the at least one condition may be based on a second threshold (for example, the second threshold 330 in FIG. 3) . It is noted that the second threshold 330 is only an example not limitation. For example, the at least one condition may include that measurement result of at least one measurement resource becomes the second threshold better than measurement result of a reference resource corresponding to current indicated transmission configuration indicator (TCI) state. For example, the condition may indicate that quality of at least one new beam becomes the second threshold value better than the current beam (e.g. corresponding to a reference CSI-RS resource and / or a reference SSB) .
[0076] In some embodiments, the at least one condition or event (or the at least one first condition or event) may comprise one or more of: quality or value of measurement result corresponding to a reference measurement resource (e.g. current beam or corresponding to indicated TCI state) is worse than or no better than a second threshold, quality or value of measurement result corresponding to at least one measurement resource becomes or is the second threshold better than quality or value of measurement result corresponding to the reference measurement resource, quality or value of measurement result corresponding to at least one measurement resource becomes or is better than or larger than or no less than the second threshold, or quality or value of measurement result corresponding to the reference measurement resource (e.g. current beam or corresponding to indicated TCI state) is worse than or no better than the second threshold and quality or value of measurement result corresponding to at least one measurement resource becomes or is better than or larger than or no less than a third threshold.
[0077] In some embodiments, the reference measurement resource may be a reference CSI-RS resource or may be a reference SSB. In some embodiments, the reference measurement resource or the reference CSI-RS resource may be based on at least one reference signal (e.g. CSI-RS resource or SSB) configured in the indicated TCI state (or in the activated TCI states) . For example, the CSI-RS resource configured for quasi-co location (QCL) type D in the indicated TCI state (or in the activated TCI states) .
[0078] If the at least one condition is satisfied, the terminal device 110 transmits (2030) the measurement report to the network device 120. In other words, the network device 120 receives (2030) the measurement report to the terminal device 110. In some embodiments, the measurement report may include at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of measurement resource may correspond to one indication of measurement result. In this way, it provides flexibility for network selection and also considering the overhead for beam reporting.
[0079] In some embodiments, the measurement report may be the first measurement report or the second measurement report.
[0080] In some embodiments, at least one measurement resource comprises one or more of: at least one channel state information reference signal (CSI-RS) resource or at least one synchronization signal block (SSB) . In some embodiments, one measurement resource may be one CSI-RS resource. In some embodiments, one measurement resource may be one SSB. For example, the indication of the measurement resource may be a CSI resource indicator (CRI) . In some embodiments, the indication of the measurement resource may be an SSB resource indicator (SSBRI) . In some embodiments, the measurement result indicates or comprises at least one of: reference signal received power (RSRP) , signal to interference plus noise ratio (SINR) , layer-1 (L1) RSRP, L1-SINR, layer-3 (L3) RSRP, L3-SINR, filtered RSRP or filtered SINR.
[0081] In some embodiments, a difference between values of measurement results in the measurement report may be no larger than or less than a first threshold. For example, the difference between the values of the RSRP (and / or SINR) (or between the first group of values of RSRP and / or SINR) (for example, corresponding to different measurement resources or different CRIs or different SSBRIs) in the measurement report may be no larger than or less than a first threshold (e.g. represented as thres1) . In some embodiments, the values of measurement results (or the values of first group of measurement results) in the measurement report may be within a first range. In some embodiments, the values of the RSRP (and / or SINR) (or the first group of values of RSRP and / or SINR) in the measurement report may be within a first range. In some embodiments, if the values of RSRP (and / or SINR) corresponding to a value not set as reserved or if the values of RSRP (and / or SINR) not corresponding to a value set as reserved (or set as invalid or set as not valid or set as out of range) or if the values of RSRP (and / or SINR) not corresponding to the first value or last value (e.g. -30≥ΔRSRP for RSRP or -15≥ΔSINR for SINR) . In some embodiments, if the values of RSRP (and / or SINR) or the values of the measurement results (for example, represented as X) corresponding to or belonging to or being within the range of a first set of values. In some embodiments, the first set of values may be {1, 2, …126} or {16, 17, …113} or {17, 18, …113} or {0, 1, …14} . In some embodiments, the value of X may be non-negative integer. In some embodiments, 1≤X≤126. In some embodiments, 16≤X≤113. In some embodiments, 17≤X≤113. In some embodiments, 16≤X≤112. In some embodiments, 17≤X≤112. In some embodiments, 0≤X≤14. In some embodiments, the first group of values or RSRP and / or SINR or the first group of measurement may not correspond to a value set as reserved. In some embodiments, the first group of values or RSRP and / or SINR or the first group of measurement may not correspond to a value set as reserved (or set as invalid or set as out of range) or may not correspond to the value “1111” . In some embodiments, the first group of values or RSRP and / or SINR or the first group of measurement may not correspond to the first value or the last value or the minimum value or the maximum value (For example. -30≥ΔRSRP for RSRP or -15≥ΔSINR for SINR) . For example, as shown in FIG. 3, RSRP or SINR corresponding to the CSI-RS resource or SSB 320-1 (for example, the largest measurement value) and the RSRP or SINR corresponding to the CSI-RS resource or SSB 320-2 may be within the first range. By way of example, the difference 340 between values of the measurement results of SSB 320-1 and SSB 320-2 may be no larger than or less than the first threshold 350. It is noted that the first threshold 350 is only an example not limitation. In this way, based on the first threshold, the reported beams are within a range, network can select one based on scheduling, and if the quality of the beams not changed, there will no further event triggered even network doesn’t select the beam with largest measured RSRP / SINR.
[0082] In some embodiments, a value of measurement result corresponding to one measurement resource (for example, except a first measurement resource) may be a differential value computed with a step size with a reference to a largest measured value of measurement result, wherein the largest measured value of measurement result may correspond to the first measurement resource. In some embodiments, the step size may be 0.5 or 1 or 1.5 or 2 or 3. In some embodiments, the value of measurement result (or the value of RSRP or the value of SINR or the differential value) may be no larger than or less than the first threshold (e.g. thres1) . In some embodiments, the value of measurement result (or the value of RSRP or the value of SINR or the differential value) may be no less than or larger than minus value of the first threshold (e.g. -thres1) . For example, a maximum value of the range of the differential value may be no larger than or less than the first threshold (e.g. thres1) . In some other embodiments, a minimum value of the range of the differential value may be no less than or larger than minus value of the first threshold (e.g. -thres1 ) to the largest measured RSRP (and / or SINR) corresponding to a first measurement resource (e.g. a first CSI-RS resource or a first SSB) .
[0083] In some embodiments, the first threshold (e.g. thres1) may be integer. In some embodiments, -30≤thres1≤30. In some embodiments, 0≤thres1≤15. In some embodiments, 0≤thres1≤30. In some embodiments, 0≤thres1≤7. In some embodiments, 0≤thres1≤9.
[0084] In some embodiments, the first measurement resource may be the one corresponding to a first one indication of measurement resource. For example, the first CSI-RS resource or the first SSB may be the one corresponding to the first one indication of CSI-RS resource (e.g. CRI#1) or the first indication of SSB) (e.g. SSBRI#1) . In some embodiments, the first measurement resource may be the one corresponding to the largest measured value of measurement result or corresponding to the largest measured value of RSRP or SINR.
[0085] In some embodiments, the first threshold may be same as the second threshold. In some embodiments, the first threshold may be no larger than or less than the second threshold.
[0086] In some embodiments, the second threshold (e.g. thres2) may be integer. In some embodiments, -30≤thres2≤30. In some embodiments, 0≤thres2≤15. In some embodiments, 0≤thres2≤30. In some embodiments, 0≤thres2≤45.
[0087] In some embodiments, the first threshold and / or the second threshold may be reported by the terminal device 110. In some embodiments, the first threshold and / or the second threshold may be configured by the network device 120. In some embodiment, the first threshold and / or the second threshold may be predefined.
[0088] In some embodiments, a bit size and / or quantization and / or step size for indication of measurement result (or indication of the RSRP and / or SINR) may be based on at least one of: the second threshold or the first threshold. For example, the quantization and / or step size and / or bit size for indication of the RSRP and / or SINR (or indication of measurement result) may be based on the second threshold and / or the first threshold. In some embodiments, the bit size may be 1 or 2 or 3 or 4.
[0089] In some embodiments, the current indicated TCI state may be an indicated TCI state in or corresponding to a time unit (or a timing) . In some embodiments, the time unit may be a slot or a symbol or a subframe or a subslot. In some embodiments, a slot may comprise 12 or 14 symbols. For example, the time unit may be a slot of at least one of: the slot (or the last slot or the latest slot) overlapping with the timing of the at least one condition (or event) satisfied, the slot (or the last slot or the latest slot) which is a first time duration (e.g. a first number of slots or a first number of symbols) before the timing of the at least one condition (or event) satisfied, the slot (or the last slot or the latest slot) overlapping with the slot for transmission of the first part (or the first uplink channel) , the (or the last slot or the latest slot) slot which is a second time duration (e.g. a second number of slots or symbols) before the transmission of the first part (or the first uplink channel) , the (or the last slot or the latest slot) slot which is a second time duration (e.g. a second number of slots or symbols) before the first symbol or the last symbol of the transmission of the first part (or the first uplink channel) , the slot (or the last slot or the latest slot) which is a third time duration (e.g. a third number of slots or symbols) before the transmission of the second part and / or the third part (or the second uplink channel and / or the third uplink channel) or the slot (or the last slot or the latest slot) which is a third time duration (e.g. a third number of slots or symbols) before the first symbol or the last symbol of the transmission of the second part and / or the third part (or the second uplink channel and / or the third uplink channel) . In some embodiments, if CSI computation time satisfied, the terminal device 110 may update the measurement report after transmission of the first part (or the first uplink channel) or after triggering the transmission of the measurement report. Otherwise, the terminal device 110 may transmit the measurement report prepared before the transmission of the first part or before triggering the transmission of the measurement report. In some embodiments, the CSI computation time may start from one or more of: the (starting or ending) timing of the at least one condition (or event) satisfied, the last symbol of the first uplink channel, the first symbol of the first uplink channel, the last symbol of the second uplink channel, the first symbol of the second uplink channel, the last symbol of the third uplink channel, the first symbol of the third uplink channel, the last symbol in time of the latest of measurement resource for the measurement report and interference measurement resource for the measurement report, the first symbol of the acknowledgement (or confirmation) of the network device 120 or the last symbol of the acknowledgement (or confirmation) of the network device 120. In some embodiments, the acknowledgement or confirmation may be in a downlink control information (DCI) without data assignment or without downlink data assignment or without uplink data assignment or without PDSCH scheduling or without PUSCH scheduling.
[0090] In some embodiments, there may be a first timing for the measurement report, wherein the first timing may be defined as the next uplink symbol with its cyclic prefix (CP) starting the first time duration after one or more of: the (starting or ending) timing of the at least one condition (or event) satisfied, the last symbol of the first uplink channel, the first symbol of the first uplink channel, the last symbol of the second uplink channel, the first symbol of the second uplink channel, the last symbol of the third uplink channel, the first symbol of the third uplink channel, the last symbol in time of the latest of measurement resource for the measurement report and interference measurement resource for the measurement report, the first symbol of the acknowledgement (or confirmation) of the network device 120 or the last symbol of the acknowledgement (or confirmation) of the network device 120. In some embodiments, the acknowledgement (or confirmation) of the network device may correspond to or in response to the transmission of the first uplink channel.
[0091] In some embodiments, the first time duration may be the first number of slots or the first number of symbols. In some embodiments, the first number may be non-negative integer. In some embodiments, 0<= the first number <=336. In some embodiments, the first number may be at least one of {0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 14, 16, 21, 22, 25, 30, 33, 36, 42, 43, 44, 56, 70, 84, 85, 97, 98, 112, 126, 140, 224, 336, 340, 388, 680, 776} . In some embodiments, the second time duration may be the second number of slots or the second number of symbols. In some embodiments, the second number may be non-negative integer. In some embodiments, 0<= the second number <=336. In some embodiments, the second number may be at least one of {0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 14, 16, 21, 22, 25, 30, 33, 36, 42, 43, 44, 56, 70, 84, 85, 97, 98, 112, 126, 140, 224, 336, 340, 388, 680, 776} . In some embodiments, the third time duration may be the third number of slots or the third number of symbols. In some embodiments, the third number may be non-negative integer. In some embodiments, 0<= the third number <=336. In some embodiments, the third number may be at least one of {0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 14, 16, 21, 22, 25, 30, 33, 36, 42, 43, 44, 56, 70, 84, 85, 97, 98, 112, 126, 140, 224, 336, 340, 388, 680, 776} .
[0092] In some embodiments, the terminal device 110 may determine whether at least one first condition (or event) is satisfied by measuring a first plurality of measurement resources. In some embodiments, if at least one of: the at least one first condition or at least one second condition is satisfied, the terminal device 110 may transmit the first measurement report to the network device 120. In other words, if at least one of: at least one first condition or at least one second condition is satisfied, the network device 120 may receive the first measurement report from the terminal device 110.
[0093] In some embodiments, the first measurement report may include at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of one measurement resource corresponds to one indication of measurement result. For example, the terminal device 110 may measure a first plurality of CSI-RS resources (and / or a first plurality of SSB) to assess whether at least one first condition / event is satisfied, the terminal device 110 may transmit first measurement report to the network device 120 if the at least one first condition / event and at least one second condition / event are satisfied. In some embodiments, the first measurement report may comprise at least one indication of at least one CSI-RS resource (and / or SSB) (e.g. at least one CRI and / or SSBRI) and at least one indication of RSRP (and / or SINR) , and each indication of one CSI-RS resource (and / or SSB) may correspond to one indication of RSRP (and / or SINR) .
[0094] In some embodiments, there may be at least one measurement resource satisfying the at least one first condition (or event) , and each measurement resource may correspond to a value of measurement result. For example, there may be at least one CSI-RS resource (and / or SSB) (e.g. represented as a first group of CSI-RS (and / or SSB) resources or represented as a first group of measurement resources) satisfying the at least one first condition (or event) , and each CSI-RS resource (and / or SSB) may correspond to a value of RSRP (and / or SINR) (or each value of RSRP (and / or SINR) may correspond to one CSI-RS resource (and / or SSB) ) .
[0095] In some embodiments, the at least one second condition may be based on one or more of: information of second measurement report, a second measurement resource in the second measurement report, a first value of a largest measurement result in the second measurement report, the at least one measurement resource in the second measurement report, the first group of measurement resources, a third measurement resource in the at least one measurement resource (e.g. which is satisfying the at least one first condition) is different from the second measurement resource in the second measurement report, a third measurement resource in the first group of measurement resources is different from the second measurement resource in the second measurement report, a second value of largest measurement result is at least one of: a first gap larger than the first value of largest measurement result or a second gap less than the first value of largest measurement result in the second measurement report, at least one measurement resource in the first group of measurement resources is different from at least one measurement resource in the second measurement report or at least one of the at least one measurement resource (which is satisfying the at least one first condition) is different from at least one measurement resource in the second measurement report. In some embodiments, the second measurement report may be the previous transmitted measurement report (for example, before the at least one first condition or event or before the assessing or measurement corresponding to the first measurement report) . In some embodiments, the second measurement report may be the latest transmitted measurement report prior to or before the at least one first condition or event or before the assessing or measurement corresponding to the first measurement report. In some embodiments, the second measurement report may be the latest transmitted measurement report within a time duration prior to or before the at least one first condition or event or before the assessing or measurement corresponding to the first measurement report. For example, the at least one second condition / event may be based on second measurement report (e.g. the previous one measurement report or latest one prior to the at least one first condition / event or the latest one within a duration prior to the at least one first condition / event) . In some embodiments the at least one second condition or event may be based on at least one of: the first CSI-RS resource (and / or the first SSB) , a first value of the largest measured RSRP (and / or SINR) , or the at least one CSI-RS resource (and / or SSB) (e.g. represented as a second group of CSI-RS (and / or SSB) resources) in the second measurement report.
[0096] In some embodiments, the at least one second condition / event may comprise at least one of: a second CSI-RS resource (and / or second SSB) (e.g. corresponding to a second largest measured RSRP (and / or SINR) (e.g. in the first group of CSI-RS (and / or SSB) resources or in the first measurement report) is different from the first CSI-RS resource and / or the first SSB in the second measurement report, (e.g. largest beam changed) ; a second value of largest measured RSRP (and / or SINR) is a first gap larger than the first value of largest measured RSRP (and / or SINR) and / or a second gap less than the first value of largest measured RSRP (and / or SINR) in the second measurement report, (e.g. largest RSRP or SINR changed) ; or at least one or all of the at least one CSI-RS resource (and / or SSB) (e.g. the first group of CSI-RS (and / or SSB) resources) is different from at least one or all of the CSI-RS resource (and / or SSB) in the second measurement report (e.g. the second group of CSI-RS (and / or SSB) resources) .
[0097] In some embodiments, the terminal device 110 may adjust the second threshold to assess the at least one first condition in response to at least one of: a reception of a response (e.g. the acknowledge or confirmation) from the network device 120 for measurement report or for the first uplink channel, or at least K resources satisfying the at least one condition in a (consecutive) number of assessing times. For example, K may be equal to or larger than 1.
[0098] In some embodiments, as shown in FIG. 4, the terminal device 110 may transmit second measurement report in case of at least one condition satisfied. In some embodiments, the terminal device 110 may further receive the response for the second measurement report from the network device 120. In some embodiments, the terminal device 110 may assess the first plurality of measurement resources with at least one first condition and / or at least one second condition. In some embodiments, the terminal device 110 may assess or determine whether to trigger or initiate or transmit the first measurement report based on the at least one first condition and the at least one second condition. In some embodiments, at least one second condition may be based on the information of the second measurement report. In this case, if the at least one first condition and the at least one second condition are satisfied, the terminal device 110 may transmit first measurement report. In this way, whether to report or trigger the first measurement report is determined with the condition based on a second (previous) measurement report, which can avoid unnecessary reporting, e.g. when network selects a different beam from the largest one.
[0099] In some embodiments, the measurement report may comprise at least one of a first information set (e.g. in a first uplink channel) or a second information set (e.g. in a second uplink channel) . In some embodiments, the first information set (or the first uplink channel) may comprise an indication of state or variation or transmission or presence of the second information set (e.g. in the second uplink channel) or an indication of state or variation or transmission or presence of the measurement report or an indication of state or variation of measurement result (e.g. corresponding to the measurement report) . In some embodiments, the measurement report may comprise one or more of: a first information set (e.g. in a first uplink channel) , a second information set (e.g. in a second uplink channel or in the first uplink channel) or a third information set (e.g. in a third uplink channel or in the second uplink channel) .
[0100] In some embodiments, the first information set (or the first uplink channel) may comprise an indication of state or variation or transmission or presence of the second information set (or the second uplink channel) or an indication of state or variation of measurement result. In some embodiments, the first information set (or the first uplink channel) may comprise an indication of state or variation or transmission or presence of the third information set (or the third uplink channel) or an indication of state or variation of measurement result. In some embodiments, the second information set (or the second uplink channel) may comprise an indication of state or variation or information of payload size (or number of at least one indication of measurement resource and / or number of at least one value of measurement result or number of at least one value of RSRP or SINR) of the third information set (or the third uplink channel) .
[0101] In some embodiments, the first information set or the state or the variation (of the second information set or of the second uplink channel or of the measurement report or of measurement result (e.g. corresponding to the measurement report) may comprise one or more of: indication of slot offset for the second part and / or third part (or for the second uplink channel and / or the third uplink channel) , indication of symbol offset for the second part and / or third part (or for the second uplink channel and / or the third uplink channel) , the index of occasion of the second uplink channel, the index of occasion of the third uplink channel, notification of the second information set, notification of the third information set, notification of transmission in the second uplink channel, notification of transmission in the third uplink channel, notification of the transmission of the measurement report (or the second information set or the second part of the measurement report) , request (or triggering) of the transmission of the measurement report (or the second information set or the second part of the measurement report) , number of CSI-RS resources (e.g. in the measurement report or in the second information set or in the third information set) , number of SSB (e.g. in the measurement report or in the second information set or in the third information set) , number of CRIs (e.g. in the measurement report or in the second information set or in the third information set) , number of SSBRIs (e.g. in the measurement report or in the second information set or in the third information set) , type of event, identity of event, identity of measurement report, identity of measurement report configuration, type of measurement report, or size of payload (e.g. of the measurement report or of the second information set or of the third information set) .
[0102] In some embodiments, the slot offset and / or the symbol offset may be the offset between the last symbol (or first symbol) of the first uplink channel and the last symbol (or the first symbol) of the second uplink channel. In some embodiments, the slot offset and / or the symbol offset may be the offset between the last symbol (or first symbol) of the first uplink channel and the last symbol (or the first symbol) of the third uplink channel. In some embodiments, the index of occasion of the second uplink channel may be counted from the last symbol (or first symbol) of the first uplink channel. In some embodiments, the index of occasion of the third uplink channel may be counted from the last symbol (or first symbol) of the first uplink channel.
[0103] In some embodiments, the second information set may comprise one or more of: indication of slot offset for the third part (or for the third uplink channel) , indication of symbol offset for the third part (or for the third uplink channel) , the index of occasion of the third uplink channel number of CSI-RS resources (e.g. in the measurement report or in the third information set) , number of SSB (e.g. in the measurement report or in the third information set) , number of CRIs (e.g. in the measurement report or in the third information set) , number of SSBRIs (e.g. in the measurement report or in the third information set) , type of event, identity of event, identity of measurement report, identity of measurement report configuration, type of measurement report, size of payload (e.g. of the measurement report or of the third information set) . In some embodiments, the slot offset and / or the symbol offset may be the offset between the last symbol (or first symbol) of the first second channel and the last symbol (or the first symbol) of the third uplink channel. In some embodiments, the index of occasion of the third uplink channel may be counted from the last symbol (or first symbol) of the second uplink channel.
[0104] In some embodiments, the first information set or the state or the variation (of the second information set or of the second uplink channel or of the measurement report or of measurement result (e.g. corresponding to the measurement report) may comprise at least one of: an indication of whether the second information set in the second uplink channel is same or different from a third information set in the second measurement report (e.g. information set in a previous second uplink channel) (e.g. indication of retransmission or new transmission, or indication of repetition of measurement report based on same at least one condition / event or new measurement report based on new condition / event) , an indication of whether the CSI-RS resource corresponding to the largest measured value of RSRP (and / or SINR) (e.g. second CSI-RS resource and / or second SSB) is same or different from the first CSI-RS resource and / or the first SSB in the second measurement report, (e.g. indication of whether largest beam changed or not) , an indication of whether second value of largest measured RSRP (and / or SINR) is a first gap larger than the first value of largest measured RSRP (and / or SINR) and / or a second gap less than the first value of largest measured RSRP (and / or SINR) in the second measurement report or not (e.g. indication of whether largest RSRP / SINR changed or not) , an indication of whether at least one or all of the at least one CSI-RS resource (and / or SSB) (e.g. the first group of CSI-RS (and / or SSB) resources) is different from at least one or all of the CSI-RS resource (and / or SSB) in the second measurement report (e.g. the second group of CSI-RS (and / or SSB) resources) or not (e.g. indication of whether the reported beam list changed or not) , an indication of whether the second information set present or not, an indication of whether the second uplink channel present or not, an indication of whether the third uplink channel present or not, an indication of whether the second information set to be transmitted or not, an indication of whether the second uplink channel to be transmitted or not, an indication of whether the third uplink channel to be transmitted or not, or an indication of whether at least one resource indication in the second information set present or not. In some embodiments, in above cases, the second information set may be absent. In some embodiments, in case of measurement resource list (all of the at least one CSI-RS resources and / or SSB or all of the measurement resources) not changed, only including RSRP and / or SINR in the second information set is sufficient.
[0105] In some embodiments, if the first information set indicates a first state or first variation of second information set (e.g. new transmission) , a first cyclic shift value or a first cyclic shift offset value or a first sequence may be applied to the first uplink channel. In some embodiments, if the first information set indicates a second state or second variation of second information set (e.g. retransmission) , a second cyclic shift value or a second cyclic shift offset value or a second sequence may be applied to the first uplink channel.
[0106] In some embodiments, if the first information set indicates a first state or first variation of second information set (e.g. new transmission) , a toggled value of cyclic shift or cyclic shift offset value or sequence index may be applied to the first uplink channel. In some other embodiments, if the first information set indicates a second state or second variation of second information set (e.g. retransmission) , a same value of cyclic shift or cyclic shift offset value or sequence index with a previous transmission may be applied to the first uplink channel, for example, similar as NDI toggling.
[0107] In some embodiments, the value of RSRP and / or the value of SINR corresponding to one measurement resource in one measurement report (e.g. in the first measurement report) may be filtered value or averaged value based on at least one measurement results (e.g. corresponding to the measurement resource) . In some embodiments, the at least one measurement results may be before the transmission of the measurement report (or before the first part of the measurement report or before the second part of the measurement report) . In some embodiments, the number of the at least one measurement results may be 1 or 2 or 3 or 4 or 5. In some embodiments, the value of RSRP and / or the value of SINR corresponding to one measurement resource in one measurement report (e.g. in the first measurement report) may be calculated based on α*m (1) + (1-α) *m (2) . In some embodiments, α may be a parameter for filter. In some embodiments, α may be configured by the network device or reported by the terminal device or may be predefined. In some embodiments, the value of α may be within the range of [0, 1] . In some embodiments, 0≤α≤1 or 0<α<1. In some embodiments, the value of α may be at least one of {0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1} .
[0108] In some embodiments, the terminal device 110 may transmit to the network device 120, a first part of a measurement report (or a first information set of the measurement report or a notification of the measurement report or a first report) on a first uplink channel. In other words, the network device 120 may receive the first part of a measurement report (or the first information set of the measurement report or the notification of the measurement report or the first report) on the first uplink channel. In some embodiments, the first part of the measurement report (or the first information set of the measurement report or the notification of the measurement report or the first report) may indicate information of at least one of: a second part of the measurement report on a second uplink channel or a third part of the measurement report on a third uplink channel. In some embodiments, the first part of the measurement report (or the first information set of the measurement report or the notification of the measurement report or the first report) may indicate transmission (or present) of at least one of: a second part of the measurement report on a second uplink channel or a third part of the measurement report on a third uplink channel. In some embodiments, the first part of the measurement report (or the first information set of the measurement report or the notification of the measurement report or the first report) may indicate transmission or not (or present or not) of at least one of: a second part of the measurement report on a second uplink channel or a third part of the measurement report on a third uplink channel.
[0109] In some embodiments, the first part of a measurement report may be the first information set or the first information set of the measurement report or may be the notification of the measurement report. In some embodiments, the first part of a measurement report may be represented as the first report or may be represented as the first part. In some embodiments, the second part of a measurement report may be the second information set or the second information set of the measurement report. In some embodiments, the second part of a measurement report may be represented as the second report or may be represented as the second part. In some embodiments, the third part of a measurement report may be the third information set or the third information set of the measurement report. In some embodiments, the third part of a measurement report may be represented as the third report or may be represented as the third part.
[0110] In some embodiments, the terminal device 110 may transmit, to the network device, the second part of the measurement report on a second uplink channel. In other words, the network device 120 may receive the second part of the measurement report from the terminal device 110. In some embodiments, the second part of the measurement report may indicate information of the third part of the measurement report.
[0111] In some embodiments, the terminal device 110 may receive at least one configuration of measurement report from the network device 120. In some embodiments, the terminal device 110 may assess or determine whether at least one condition or event associated with the measurement report satisfied. In some embodiments, the terminal device 110 may transmit a first part of measurement report (or the first information set or a notification of the measurement report) in a first uplink channel to the network device 120. For example, in response to the at least one condition or event satisfied. In some embodiments, the terminal device 110 may receive an activation command of semi-persistent transmission of measurement report from the network device 120. In some embodiments, the terminal device 110 may transmit a second part of measurement report (or the second information set or the measurement report) in a second uplink channel to the network device 120. For example, after the activation command (or after the semi- persistent transmission of measurement report is activated) and / or until a deactivation of the measurement report from the network device.
[0112] In some embodiments, the terminal device 110 may receive at least one configuration of measurement report from the network device 120. In some embodiments, the terminal device 110 may assess or determine whether at least one condition or event associated with the measurement report satisfied. In some embodiments, the terminal device 110 may transmit a first part of measurement report (or the first information set or a notification of the measurement report) in a first uplink channel to the network device 120. For example, in response to the at least one condition or event satisfied. In some embodiments, the terminal device 110 may transmit a second part of measurement report (or the second information set or the measurement report) in a second uplink channel to the network device 120. For example, in response to a situation. In some embodiments, the situation may comprise one or more of: reception of acknowledge or confirmation or request associated with the first part of measurement report (or the first information set or the notification of the measurement report) from the network device 120, the at least one condition or event still satisfied before transmission of the second part of measurement report (or the second information set or the measurement report or the second uplink channel) , the active bandwidth part (BWP) (e.g. the active downlink BWP and / or the active uplink BWP) is not changed or not switched within a duration (e.g. before transmission of the second part of measurement report (or the second information set or the measurement report or the second uplink channel) and / or after transmission of the first part of measurement report (or the first information set or a notification of the measurement report or the first uplink channel) and / or after the at least one condition or event (e.g. associated with the measurement report) satisfied) , no BWP switching command received within a duration (e.g. before transmission of the second part of measurement report (or the second information set or the measurement report or the second uplink channel) and / or after transmission of the first part of measurement report (or the first information set or a notification of the measurement report or the first uplink channel) and / or after the at least one condition or event (e.g. associated with the measurement report) satisfied) , no indicated TCI state update (or no activated TCI states update or no TCI state activation command received) within the duration (e.g. before transmission of the second part of measurement report (or the second information set or the measurement report or the second uplink channel) and / or after transmission of the first part of measurement report (or the first information set or a notification of the measurement report or the first uplink channel) and / or after the at least one condition or event (e.g. associated with the measurement report) satisfied) , or the indicated TCI state (or the current TCI state or the applied TCI state or the activated TCI states) not changed or updated or is same as previous indicated TCI state or is same as the indicated TCI state (or the activated TCI states) for assessing the at least one condition or event (e.g. before transmission of the second part of measurement report (or the second information set or the measurement report or the second uplink channel) and / or after transmission of the first part of measurement report (or the first information set or a notification of the measurement report or the first uplink channel) and / or after the at least one condition or event (e.g. associated with the measurement report) satisfied) .
[0113] In some embodiments, if the indicated TCI state (or the current TCI state or the applied TCI state) is changed or updated or is different from previous indicated TCI state or is different from the indicated TCI state for assessing the at least one condition or event (e.g. before transmission of the second part of measurement report (or the second information set or the measurement report or the second uplink channel) and / or after transmission of the first part of measurement report (or the first information set or a notification of the measurement report or the first uplink channel) and / or after the at least one condition or event (e.g. associated with the measurement report) satisfied) or if the active bandwidth part (BWP) (e.g. the active downlink BWP and / or the active uplink BWP) is changed or switched within a duration (e.g. before transmission of the second part of measurement report (or the second information set or the measurement report or the second uplink channel) and / or after transmission of the first part of measurement report (or the first information set or a notification of the measurement report or the first uplink channel) and / or after the at least one condition or event (e.g. associated with the measurement report) satisfied) or if BWP switching command received within a duration (e.g. before transmission of the second part of measurement report (or the second information set or the measurement report or the second uplink channel) and / or after transmission of the first part of measurement report (or the first information set or a notification of the measurement report or the first uplink channel) and / or after the at least one condition or event (e.g. associated with the measurement report) satisfied) or if indicated TCI state update (or activated TCI states update or no TCI state activation command received) within the duration, the terminal device 110 may cancel or drop or suspend the second part of measurement report (or the second information set or the measurement report or transmission of the second uplink channel) . In some embodiments, after the indicated TCI state application, the transmission of the second part of measurement report (or the second information set or the measurement report or transmission of the second uplink channel) may be assumed.
[0114] In some embodiments, the terminal device 110 may transmit to the network device 120, the third part of the first measurement report on the third uplink channel or on the second uplink channel. In other words, the network device 120 may receive the third part of the measurement report on the third uplink channel or on the second uplink channel.
[0115] By way of example, as shown in FIG. 5, in some embodiments, the terminal device 110 may transmit a first uplink channel (or a first report or a first part of the measurement report or a notification of the measurement report) to the network device 120. In some embodiments, the first uplink channel may notify a second uplink channel (or a second report or a second part of the measurement report) and / or a third uplink channel (or a third report or a third part of the measurement report) . In some embodiments, the first part may include one or more of: notification of the second part, notification of the third part, notification of transmission in the second uplink channel, notification of transmission in the third uplink channel, slot and / or symbol offset for the second part and / or third part (or for the second uplink channel and / or the third uplink channel) , the index of occasion of the second uplink channel, or the index of occasion of the third uplink channel. In some embodiments, the second part may carry the measurement report. In some embodiments, the terminal device 110 may then transmit the second report (or the second part of the measurement report measurement report) in the second uplink channel. In some embodiments, the second part may indicate the information (e.g. the information may comprise one or more of: number of CSI-RS resources, number of SSB, number of CRIs, number of SSBRIs, type of event, identity of event, identity of measurement report, identity of measurement report configuration, type of measurement report, size of payload) of the third part. For example, the second information set may comprise the second part and the third part. In some embodiments, the terminal device may further transmit the third report (or the third part of the measurement report measurement report) in the third uplink channel (or in the second uplink channel) . In some embodiments, the third part may carry the measurement report. In this way, it can keep the first part as small as possible to save overhead, and the combination of second part and third part can obtain flexibility on reporting.
[0116] In some embodiments, the first part of the measurement report (or the first information set) or the second part of the measurement report (or the second information set) may comprise: the indication of the first CSI-RS resource (and / or the indication of the first SSB) . In some embodiments, the first CSI-RS resource (and / or the first SSB) may correspond to the largest value of measured RSRP and / or SINR, and / or the indication of the largest value of measured RSRP and / or SINR (e.g. corresponding to the first CSI-RS resource and / or the first SSB) .
[0117] In some embodiments, the second part of the measurement report (or the second information set) or the third part of the measurement report (or the third information set) may comprise: the indication of remaining of the at least one CSI-RS resource (and / or SSB) and the corresponding RSRP and / or SINR, if any, and / or the indication of the largest value of measured RSRP and / or SINR. In this way, even the third part (or the second part) is dropped or not received, the network device can obtain the best beam measured / reported by the terminal device, which is sufficient for beam update.
[0118] In addition, after transmitting the first part of the measurement report and / or the second part of the measurement report, the terminal device 110 may receive information (or acknowledge or confirmation in response to the first part of the measurement report or the second part of the measurement report) from the network device 120. In some embodiments, the information may comprise indication of indicating the terminal device 110 reporting may be either only the second part or both the second part and the third part of the measurement report.
[0119] In some embodiments, the terminal device 110 may transmit measurement report to the network device 120 if at least one condition / event satisfied. In this case, the terminal device 110 may transmit the first information set in a first uplink channel. For example, the first information set may include at least one indication of CSI-RS resources (and / or SSB) . In some embodiments, within a time duration starting from the first or last symbol of the first uplink channel, the terminal device 110 may transmit the second information set in a second uplink channel. For example, the second information set may comprise at least one indication of RSRP and / or SINR corresponding to the at least one indication of CSI-RS resources (and / or SSB) in the first information set. Based on one transmission of beam index, and within a time duration, the terminal device 110 may only update the RSRP / SINR values.
[0120] In some embodiments, the terminal device 110 may transmit the first information set (e.g. in a first uplink channel) to the network device 120. In addition, the terminal device 110 may receive a request of measurement report associated with the first plurality of CSI-RS resources (and / or first plurality of SSB) from the network device 120.
[0121] In some embodiments, the terminal device 110 may transmit the second information set (e.g. triggered based on at least one condition / event) and a third information set. For example, the third information set may comprise measurement report (e.g. a number of indication of CSI-RS resources (and / or SSB) and / or a number of RSRP (and / or SINR) ) based on the first plurality of CSI-RS resources (and / or first plurality of SSB) excluding the at least one indication CSI-RS resources (and / or SSB) and / or at least one indication of RSRP (and / or SINR) in the second information set.
[0122] In some embodiments, the RSRP (and / or SINR) in the third information set may be differential value to the largest measured RSRP (and / or SINR) in the second information set. In some embodiments, there may be at least one occasion of the first plurality of CSI-RS resources (and / or SSB) after the request of measurement report from the network device 120.
[0123] In some embodiments, a CSI processing unit (CPU) corresponding to the measurement report may be occupied all the time or may be occupied starting from an assessment of the at least one condition associated with the measurement report until the last symbol of the transmission of the measurement report (or the last symbol of the second uplink channel or the last symbol of the third uplink channel) .
[0124] In some embodiments, there may be the first time duration (or represented as a minimum time duration) between the first uplink channel (e.g. the first symbol of the first uplink channel or the last symbol of the first uplink channel) and the second uplink channel (e.g. the first symbol of the second uplink channel or the last symbol of the second uplink channel) .
[0125] In some embodiments, the terminal device 110 may receive a first configuration of measurement report from the network device 120. For example, the first configuration of measurement report may comprise indication of N indications of CSI-RS resources (and / or SSB) (and / or associated RSRP (and / or SINR) ) , N may be positive integer, e.g. 1<=N<=8.
[0126] In some embodiments, the terminal device 110 may determine to report M indications of CSI-RS resources (and / or SSB) (and / or associated RSRP (and / or SINR) ) based on at least one condition / event. In some embodiments, the terminal device 110 may receive a request of measurement report associated with the first plurality of CSI-RS resources (and / or first plurality of SSB) or associated with the first configuration of measurement report from the network device 120, In some embodiments, the terminal device 110 may transmit the second information set (or the measurement report, e.g. based on the at least one condition or event) comprising M indications of CSI-RS resources (and / or SSB) (and / or associated RSRP (and / or SINR) ) and the third information set (or a third measurement report, e.g. associated with the first configuration of measurement report) comprising N or N-M or max (0, N-M) indications of CSI-RS resources (and / or SSB) (and / or associated RSRP (and / or SINR) ) to the network device 120. In some embodiments, M may be integer. In some embodiments, 0<=M<=8 or 1<=M<=8. In this way, based on the request of measurement report, the terminal device may receive the acknowledgement (CSI request) from the network device to transmit the UE initiated / event driven measurement report, and based on the request, the network device may obtain more information for more beams, which may be helpful for flexible scheduling.
[0127] 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 the terminal device 110 in FIG. 1A or FIG. 1B or FIG. 1C.
[0128] At block 610, the terminal device 110 determines whether at least one condition for measurement report is satisfied.
[0129] At block 620, in accordance with a determination that the at least one condition is satisfied, the terminal device 110 transmits measurement report to a network device. The measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of measurement resource corresponds to one indication of measurement result. A difference between values of measurement results in the measurement report is no larger than or less than a first threshold, or the values of measurement results in the measurement report is within a first range.
[0130] In some example embodiments, the at least one measurement resource comprises one or more of: at least one channel state information reference signal (CSI-RS) resource or at least one synchronization signal block (SSB) .
[0131] In some example embodiments, the measurement result indicates at least one of: reference signal received power (RSRP) or signal to interference plus noise ratio (SINR) .
[0132] In some example embodiments, a value of measurement result corresponding to one measurement resource is a differential value to a largest measured value of measurement result corresponding to a first measurement resource.
[0133] In some example embodiments, a maximum value of a range of differential value is no larger than or less than a first threshold, or wherein a minimum value of the range of the differential value is no less than or larger than minus value of the first threshold.
[0134] In some example embodiments, the first measurement resource is the one corresponding to a first one indication of measurement resource.
[0135] In some example embodiments, the method 600 further includes: receiving, from the network device, at least one configuration for the measurement report, wherein the at least one configuration comprises one or more of: a maximum number of resources, a minimum number of resources in the measurement report.
[0136] In some example embodiments, the at least one condition is based on a second threshold, and the at least one condition comprises measurement result of at least one measurement resource becomes the second threshold better than measurement result of a reference resource corresponding to current indicated transmission configuration indicator (TCI) state.
[0137] In some example embodiments, the first threshold is same as the second threshold, or wherein the first threshold is no larger than or less than the second threshold.
[0138] In some example embodiments, at least one of: the first threshold or the second threshold is reported by the terminal device, or wherein at least one of: the first threshold or the second threshold is configured by the network device, wherein at least one of: the first threshold or the second threshold is predefined.
[0139] In some example embodiments, a bit size for indication of measurement result is based on at least one of: the second threshold or the first threshold.
[0140] In some example embodiments, the current indicated TCI state is an indicated TCI state in a time unit.
[0141] In some example embodiments, the method 600 further includes: determining whether at least one first condition is satisfied by measuring a first plurality of measurement resources; and in accordance with a determination that at least one of: the at least one first condition or at least one second condition is satisfied, transmitting first measurement report to the network device, and wherein the first measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of one measurement resource corresponds to one indication of measurement result.
[0142] In some example embodiments, there is at least one measurement resource satisfying the at least one first condition, and each measurement resource corresponds to a value of measurement result.
[0143] In some example embodiments, the at least one second condition is based on at least one of: second measurement report, a second measurement resource in the second measurement report, a first value of a largest measurement result in the second measurement report, or the at least one measurement resource in the second measurement report, a third measurement resource in the at least one measurement resource satisfying the at least one first condition is different from the second measurement resource in the second measurement report, a second value of largest measurement result is at least one of: a first gap larger than the first value of largest measurement result or a second gap less than the first value of largest measurement result in the second measurement report, or at least one of the at least one measurement resource satisfying the at least one first condition is different from at least one measurement resource in the second measurement report.
[0144] In some example embodiments, the first measurement report comprises at least one of a first information set or a second information set, wherein the first information set comprises an indication of state or variation of the second information set or an indication of state or variation of measurement result.
[0145] In some example embodiments, the method 600 further includes: transmitting, to the network device, a first report on a first uplink channel, wherein the first report indicates information of at least one of a second part of the first measurement report on a second uplink channel or a third part of the first measurement report on a third uplink channel; transmitting, to the network device, the second part of the first measurement report on a second uplink channel, wherein the second part of the first measurement report indicates information of the third part of the first measurement report; and transmitting, to the network device, the third part of the first measurement report on the third uplink channel or on the second uplink channel.
[0146] 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 the network device 120 in FIG. 1A or FIG. 1B or FIG. 1C.
[0147] At block 710, in accordance with a determination that at least one condition is satisfied, the network device 120 receives measurement report from a terminal device. The measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of measurement resource corresponds to one indication of measurement result, and a difference between values of measurement results in the measurement report is no larger than or less than a first threshold, or the values of measurement results in the measurement report is within a first range.
[0148] In some example embodiments, the at least one measurement resource comprises one or more of: at least one channel state information reference signal (CSI-RS) resource or at least one synchronization signal block (SSB) .
[0149] In some example embodiments, the measurement result indicates at least one of: reference signal received power (RSRP) or signal to interference plus noise ratio (SINR) .
[0150] In some example embodiments, a value of measurement result corresponding to one measurement resource is a differential value to a largest measured value of measurement result corresponding to a first measurement resource.
[0151] In some example embodiments, a maximum value of a range of differential value is no larger than or less than a first threshold, or wherein a minimum value of the range of the differential value is no less than or larger than minus value of the first threshold.
[0152] In some example embodiments, the first measurement resource is the one corresponding to a first one indication of measurement resource.
[0153] In some example embodiments, the method 700 further comprises: transmitting, to the terminal device, at least one configuration for the at least one measurement report, wherein the at least one configuration comprises one or more of: a maximum number of resources, a minimum number of resources in the measurement report.
[0154] In some example embodiments, the at least one condition is based on a second threshold, and the at least one condition comprises measurement result of at least one measurement resource becomes the second threshold better than measurement result of a reference resource corresponding to current indicated transmission configuration indicator (TCI) state.
[0155] In some example embodiments, the first threshold is same as the second threshold, or wherein the first threshold is no larger than or less than the second threshold.
[0156] In some example embodiments, at least one of: the first threshold or the second threshold is reported by the terminal device, or wherein at least one of: the first threshold or the second threshold is configured by the network device, wherein at least one of: the first threshold or the second threshold is predefined.
[0157] In some example embodiments, a bit size for indication of measurement result is based on at least one of: the second threshold or the first threshold.
[0158] In some example embodiments, the current indicated TCI state is an indicated TCI state in a time unit.
[0159] In some example embodiments, the method 700 further comprises: in accordance with a determination that at least one of: at least one first condition or at least one second condition is satisfied, receiving first measurement report from the terminal device, and wherein the first measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of one measurement resource corresponds to one indication of measurement result.
[0160] In some example embodiments, there is at least one measurement resource satisfying the at least one first condition, and each measurement resource corresponds to a value of measurement result.
[0161] In some example embodiments, the at least one second condition is based on second measurement report, a second measurement resource in the second measurement report, a first value of a largest measurement result in the second measurement report, or the at least one measurement resource in the second measurement report, a third measurement resource in the at least one measurement resource satisfying the at least one first condition is different from the second measurement resource in the second measurement report, a second value of largest measurement result is at least one of: a first gap larger than the first value of largest measurement result or a second gap less than the first value of largest measurement result in the second measurement report, or at least one of the at least one measurement resource satisfying the at least one first condition is different from at least one measurement resource in the second measurement report.
[0162] In some example embodiments, the first measurement report comprises at least one of a first information set or a second information set, wherein the first information set comprises an indication of state or variation of the second information set or an indication of state or variation of measurement result.
[0163] In some example embodiments, the method 700 further comprises: receiving, from the terminal device, a first report on a first uplink channel, wherein the first report indicates information of at least one of a second part of the first measurement report on a second uplink channel or a third part of the first measurement report on a third uplink channel; receiving, from the terminal device, the second part of the first measurement report on a second uplink channel, wherein the second part of the first measurement report indicates information of the third part of the first measurement report; and receiving, from the terminal device, the third part of the first measurement report on the third uplink channel or on the second uplink channel.
[0164] FIG. 8 is a simplified block diagram of a device 800 that is suitable for implementing embodiments of the present disclosure. The device 800 can be considered as a further example implementation of any of the devices as shown in FIG. 1A or FIG. 1B or FIG. 1C. Accordingly, the device 800 can be implemented at or as at least a part of the terminal device 110 or the network device 120.
[0165] As shown, the device 800 includes a processor 810, a memory 820 coupled to the processor 810, a suitable transceiver 840 coupled to the processor 810, and a communication interface coupled to the transceiver 840. The memory 820 stores at least a part of a program 830. The transceiver 840 may be for bidirectional communications or a unidirectional communication based on requirements. The transceiver 840 may include at least one of a transmitter 842 and a receiver 844. The transmitter 842 and the receiver 844 may be functional modules or physical entities. The transceiver 840 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.
[0166] The program 830 is assumed to include program instructions that, when executed by the associated processor 810, enable the device 800 to operate in accordance with the embodiments of the present disclosure, as discussed herein with reference to FIGS. 1 to 8. The embodiments herein may be implemented by computer software executable by the processor 810 of the device 800, or by hardware, or by a combination of software and hardware. The processor 810 may be configured to implement various embodiments of the present disclosure. Furthermore, a combination of the processor 810 and memory 820 may form processing means 850 adapted to implement various embodiments of the present disclosure.
[0167] The memory 820 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 820 is shown in the device 800, there may be several physically distinct memory modules in the device 800. The processor 810 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 800 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.
[0168] According to embodiments of the present disclosure, a terminal device comprising a circuitry is provided. The circuitry is configured to: determine whether at least one condition for measurement report is satisfied; and in accordance with a determination that the at least one condition is satisfied, transmit measurement report to a network device, wherein the measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of measurement resource corresponds to one indication of measurement result, and a difference between values of measurement results in the measurement report is no larger than or less than a first threshold, or the values of measurement results in the measurement report is within a first range. According to embodiments of the present disclosure, the circuitry may be configured to perform any method implemented by the terminal device as discussed above.
[0169] According to embodiments of the present disclosure, a network device comprising a circuitry is provided. The circuitry is configured to: in accordance with a determination that at least one condition is satisfied, receives measurement report from a terminal device, wherein the measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of measurement resource corresponds to one indication of measurement result, and a difference between values of measurement results in the measurement report is no larger than or less than a first threshold, or the values of measurement results in the measurement report is within a first range. According to embodiments of the present disclosure, the circuitry may be configured to perform any method implemented by the network device as discussed above.
[0170] 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.
[0171] According to embodiments of the present disclosure, a terminal apparatus is provided. The terminal apparatus comprises means for determining whether at least one condition for measurement report is satisfied; and in accordance with a determination that the at least one condition is satisfied, means for transmitting measurement report to a network device, wherein the measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of measurement resource corresponds to one indication of measurement result, and a difference between values of measurement results in the measurement report is no larger than or less than a first threshold, or the values of measurement results in the measurement report is within a first range. In some embodiments, the first apparatus may comprise means for performing the respective operations of the method 600. In some example embodiments, the first 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.
[0172] According to embodiments of the present disclosure, a network apparatus is provided. The network apparatus comprises in accordance with a determination that at least one condition is satisfied, means for receivinging measurement report from a terminal device, wherein the measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of measurement resource corresponds to one indication of measurement result, and a difference between values of measurement results in the measurement report is no larger than or less than a first threshold, or the values of measurement results in the measurement report is within a first range. In some embodiments, the second apparatus may comprise means for performing the respective operations of the method 700. In some example embodiments, the second 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.
[0173] In summary, embodiments of the present disclosure provide the following aspects.
[0174] In an aspect, it is proposed a terminal device, comprising: a processor, configured to cause the terminal device to: determine whether at least one condition for measurement report is satisfied; and in accordance with a determination that the at least one condition is satisfied, transmit measurement report to a network device, wherein the measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of measurement resource corresponds to one indication of measurement result, and a difference between values of measurement results in the measurement report is no larger than or less than a first threshold, or the values of measurement results in the measurement report is within a first range.
[0175] In some embodiments, the at least one measurement resource comprises one or more of: at least one channel state information reference signal (CSI-RS) resource or at least one synchronization signal block (SSB) .
[0176] In some embodiments, the measurement result indicates at least one of: reference signal received power (RSRP) or signal to interference plus noise ratio (SINR) .
[0177] In some embodiments, a value of measurement result corresponding to one measurement resource is a differential value to a largest measured value of measurement result corresponding to a first measurement resource.
[0178] In some embodiments, a maximum value of a range of differential value is no larger than or less than a first threshold, or wherein a minimum value of the range of the differential value is no less than or larger than minus value of the first threshold.
[0179] In some embodiments, the first measurement resource is the one corresponding to a first one indication of measurement resource.
[0180] In some embodiments, the terminal device is caused to: receive, from the network device, at least one configuration for the measurement report, wherein the at least one configuration comprises one or more of: a maximum number of resources, a minimum number of resources in the measurement report.
[0181] In some embodiments, the at least one condition is based on a second threshold, and the at least one condition comprises measurement result of at least one measurement resource becomes the second threshold better than measurement result of a reference resource corresponding to current indicated transmission configuration indicator (TCI) state.
[0182] In some embodiments, the first threshold is same as the second threshold, or wherein the first threshold is no larger than or less than the second threshold.
[0183] In some embodiments, at least one of: the first threshold or the second threshold is reported by the terminal device, or wherein at least one of: the first threshold or the second threshold is configured by the network device, wherein at least one of: the first threshold or the second threshold is predefined.
[0184] In some embodiments, a bit size for indication of measurement result is based on at least one of: the second threshold or the first threshold.
[0185] In some embodiments, the current indicated TCI state is an indicated TCI state in a time unit.
[0186] In some embodiments, the terminal device is caused to: determine whether at least one first condition is satisfied by measuring a first plurality of measurement resources; and in accordance with a determination that at least one of: the at least one first condition or at least one second condition is satisfied, transmit first measurement report to the network device, and wherein the first measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of one measurement resource corresponds to one indication of measurement result.
[0187] In some embodiments, there is at least one measurement resource satisfying the at least one first condition, and each measurement resource corresponds to a value of measurement result.
[0188] In some embodiments, the at least one second condition is based on at least one of: second measurement report, a second measurement resource in the second measurement report, a first value of a largest measurement result in the second measurement report, or the at least one measurement resource in the second measurement report, a third measurement resource in the at least one measurement resource satisfying the at least one first condition is different from the second measurement resource in the second measurement report, a second value of largest measurement result is at least one of: a first gap larger than the first value of largest measurement result or a second gap less than the first value of largest measurement result in the second measurement report, or at least one of the at least one measurement resource satisfying the at least one first condition is different from at least one measurement resource in the second measurement report.
[0189] In some embodiments, the first measurement report comprises at least one of a first information set or a second information set, wherein the first information set comprises an indication of state or variation of the second information set or an indication of state or variation of measurement result.
[0190] In some embodiments, the terminal device is caused to: transmit, to the network device, a first report on a first uplink channel, wherein the first report indicates information of at least one of a second part of the first measurement report on a second uplink channel or a third part of the first measurement report on a third uplink channel; transmit, to the network device, the second part of the first measurement report on a second uplink channel, wherein the second part of the first measurement report indicates information of the third part of the first measurement report; and transmit, to the network device, the third part of the first measurement report on the third uplink channel or on the second uplink channel.
[0191] In an aspect, it is proposed a network device, comprising: a processor, configured to cause the network device to: in accordance with a determination that at least one condition is satisfied, receives measurement report from a terminal device, wherein the measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of measurement resource corresponds to one indication of measurement result, and a difference between values of measurement results in the measurement report is no larger than or less than a first threshold, or the values of measurement results in the measurement report is within a first range.
[0192] In some embodiments, the at least one measurement resource comprises one or more of: at least one channel state information reference signal (CSI-RS) resource or at least one synchronization signal block (SSB) .
[0193] In some embodiments, the measurement result indicates at least one of: reference signal received power (RSRP) or signal to interference plus noise ratio (SINR) .
[0194] In some embodiments, a value of measurement result corresponding to one measurement resource is a differential value to a largest measured value of measurement result corresponding to a first measurement resource.
[0195] In some embodiments, a maximum value of a range of differential value is no larger than or less than a first threshold, or wherein a minimum value of the range of the differential value is no less than or larger than minus value of the first threshold.
[0196] In some embodiments, the first measurement resource is the one corresponding to a first one indication of measurement resource.
[0197] In some embodiments, the network device is caused to: transmit, to the terminal device, at least one configuration for the measurement report, wherein the at least one configuration comprises one or more of: a maximum number of resources, a minimum number of resources in the measurement report.
[0198] In some embodiments, the at least one condition is based on a second threshold, and the at least one condition comprises measurement result of at least one measurement resource becomes the second threshold better than measurement result of a reference resource corresponding to current indicated transmission configuration indicator (TCI) state.
[0199] In some embodiments, the first threshold is same as the second threshold, or wherein the first threshold is no larger than or less than the second threshold.
[0200] In some embodiments, at least one of: the first threshold or the second threshold is reported by the terminal device, or wherein at least one of: the first threshold or the second threshold is configured by the network device, wherein at least one of: the first threshold or the second threshold is predefined.
[0201] In some embodiments, a bit size for indication of measurement result is based on at least one of: the second threshold or the first threshold.
[0202] In some embodiments, the current indicated TCI state is an indicated TCI state in a time unit.
[0203] In some embodiments, the network device is caused to: in accordance with a determination that at least one of: at least one first condition or at least one second condition is satisfied, receive first measurement report from the terminal device, and wherein the first measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of one measurement resource corresponds to one indication of measurement result.
[0204] In some embodiments, there is at least one measurement resource satisfying the at least one first condition, and each measurement resource corresponds to a value of measurement result.
[0205] In some embodiments, the at least one second condition is based on second measurement report, a second measurement resource in the second measurement report, a first value of a largest measurement result in the second measurement report, or the at least one measurement resource in the second measurement report, a third measurement resource in the at least one measurement resource satisfying the at least one first condition is different from the second measurement resource in the second measurement report, a second value of largest measurement result is at least one of: a first gap larger than the first value of largest measurement result or a second gap less than the first value of largest measurement result in the second measurement report, or at least one of the at least one measurement resource satisfying the at least one first condition is different from at least one measurement resource in the second measurement report.
[0206] In some embodiments, the first measurement report comprises at least one of a first information set or a second information set, wherein the first information set comprises an indication of state or variation of the second information set or an indication of state or variation of measurement result.
[0207] In some embodiments, the network device is caused to: receive, from the terminal device, a first report on a first uplink channel, wherein the first report indicates information of at least one of a second part of the first measurement report on a second uplink channel or a third part of the first measurement report on a third uplink channel; receive, from the terminal device, the second part of the first measurement report on a second uplink channel, wherein the second part of the first measurement report indicates information of the third part of the first measurement report; and receive, from the terminal device, the third part of the first measurement report on the third uplink channel or on the second uplink channel.
[0208] 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.
[0209] 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.
[0210] 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.
[0211] 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.
[0212] 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.
[0213] 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.
[0214] 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.
[0215] 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 8. 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.
[0216] 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.
[0217] 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.
[0218] 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.
[0219] 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
1.A terminal device, comprising:a processor, configured to cause the terminal device to:determine whether at least one condition for measurement report is satisfied; andin accordance with a determination that the at least one condition is satisfied, transmit measurement report to a network device, wherein the measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of measurement resource corresponds to one indication of measurement result, anda difference between values of measurement results in the measurement report is no larger than or less than a first threshold, orthe values of measurement results in the measurement report is within a first range.2.The terminal device of claim 1, wherein the at least one measurement resource comprises one or more of: at least one channel state information reference signal (CSI-RS) resource or at least one synchronization signal block (SSB) .3.The terminal device of claim 1 or 2, wherein the measurement result indicates at least one of: reference signal received power (RSRP) or signal to interference plus noise ratio (SINR) .4.The terminal device of any of claims 1-4, wherein a value of measurement result corresponding to one measurement resource is a differential value to a largest measured value of measurement result corresponding to a first measurement resource.5.The terminal device of any of claims 1-4, wherein the at least one condition is based on a second threshold, and the at least one condition comprises measurement result of at least one measurement resource becomes the second threshold better than measurement result of a reference resource corresponding to current indicated transmission configuration indicator (TCI) state.6.The terminal device of claim 5, wherein the first threshold is same as the second threshold, orwherein the first threshold is no larger than or less than the second threshold.7.The terminal device of claim 5, wherein at least one of: the first threshold or the second threshold is reported by the terminal device, orwherein at least one of: the first threshold or the second threshold is configured by the network device,wherein at least one of: the first threshold or the second threshold is predefined.8.The terminal device of claim 5, wherein a bit size for indication of measurement result is based on at least one of: the second threshold or the first threshold.9.The terminal device of any of claims 1-8, wherein the current indicated TCI state is an indicated TCI state in a time unit.10.The terminal device of any of claims 1-9, wherein the terminal device is caused to:determine whether at least one first condition is satisfied by measuring a first plurality of measurement resources; andin accordance with a determination that at least one of: the at least one first condition or at least one second condition is satisfied, transmit first measurement report to the network device, and wherein the first measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of one measurement resource corresponds to one indication of measurement result.11.The terminal device of claim 10, wherein there is at least one measurement resource satisfying the at least one first condition, and each measurement resource corresponds to a value of measurement result.12.The terminal device of claim 10, wherein the at least one second condition is based on at least one of: second measurement report, a second measurement resource in the second measurement report, a first value of a largest measurement result in the second measurement report, or the at least one measurement resource in the second measurement report,a third measurement resource in the at least one measurement resource satisfying the at least one first condition is different from the second measurement resource in the second measurement report,a second value of largest measurement result is at least one of: a first gap larger than the first value of largest measurement result or a second gap less than the first value of largest measurement result in the second measurement report, orat least one of the at least one measurement resource satisfying the at least one first condition is different from at least one measurement resource in the second measurement report.13.The terminal device of any of claims 1-12, wherein the first measurement report comprises at least one of a first information set or a second information set, wherein the first information set comprises an indication of state or variation of the second information set or an indication of state or variation of measurement result.14.The terminal device of any of claims 1-13, wherein the terminal device is caused to:transmit, to the network device, a first report on a first uplink channel, wherein the first report indicates information of at least one of a second part of the first measurement report on a second uplink channel or a third part of the first measurement report on a third uplink channel;transmit, to the network device, the second part of the first measurement report on a second uplink channel, wherein the second part of the first measurement report indicates information of the third part of the first measurement report; andtransmit, to the network device, the third part of the first measurement report on the third uplink channel or on the second uplink channel.15.A network device, comprising:a processor, configured to cause the network device to:in accordance with a determination that at least one condition is satisfied, receive measurement report from a terminal device, wherein the measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of measurement resource corresponds to one indication of measurement result, and a difference between values of measurement results in the measurement report is no larger than or less than a first threshold, or the values of measurement results in the measurement report is within a first range.16.A communication method implemented by a terminal device, comprising:determining whether at least one condition for measurement report is satisfied; andin accordance with a determination that the at least one condition is satisfied, transmitting measurement report to a network device, wherein the measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of measurement resource corresponds to one indication of measurement result, anda difference between values of measurement results in the measurement report is no larger than or less than a first threshold, orthe values of measurement results in the measurement report is within a first range.17.A communication method implemented by a network device, comprising:in accordance with a determination that at least one condition is satisfied, receiving measurement report from a terminal device, wherein the measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of measurement resource corresponds to one indication of measurement result, and a difference between values of measurement results in the measurement report is no larger than or less than a first threshold, or the values of measurement results in the measurement report is within a first range.18.A communication method implemented at a terminal device, comprising:determining whether at least one condition for measurement report is satisfied; andin accordance with a determination that the at least one condition is satisfied, transmitting measurement report to a network device, wherein the measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of measurement resource corresponds to one indication of measurement result, anda difference between values of measurement results in the measurement report is no larger than or less than a first threshold, orthe values of measurement results in the measurement report is within a first range.19.A communication method implemented at a network device, comprising:in accordance with a determination that at least one condition is satisfied, receiving measurement report from a terminal device, wherein the measurement report comprises at least one indication of at least one measurement resource and at least one indication of at least one measurement result, and each indication of measurement resource corresponds to one indication of measurement result, and a difference between values of measurement results in the measurement report is no larger than or less than a first threshold, or the values of measurement results in the measurement report is within a first range.20.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 according to claim 18 or 19.
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