Method related to triggering CSI measurement and reporting

Abstract

Example embodiments of the present disclosure are directed to method related to triggering channel state information (CSI) measurement and reporting. A method includes obtaining a first indication indicative that at least one report corresponding to at least one channel state information, CSI, configuration is not carried by at least one first uplink resource which is scheduled by downlink control information, wherein the downlink control information triggers at least one measurement corresponding to the at least one CSI configuration and the at least one report is based on the at least one measurement; and skipping, based on the first indication, a transmission of the at least one report on the at least one first uplink resource to a second apparatus.

Description

METHOD RELATED TO TRIGGERING CSI MEASUREMENT AND REPORTINGRELATED APPLICATION

[0001] This application claims priority to FI Application No. 20246010 filed August 13, 2024, which is incorporated herein by reference in its entirety.FIELD

[0002] Various example embodiments of the present disclosure generally relate to the field of telecommunication and in particular, to methods, devices, apparatuses and computer readable storage medium for triggering channel state information (CSI) measurement and reporting.BACKGROUND

[0003] With the development of wireless communication technology, fifth generation (5G) networks have gradually become a reality, significantly enhancing data transmission speeds and network capacity. However, as user demands continue to grow and new application scenarios emerge, existing 5G networks still face many challenges, driving the development of future 6G networks. Channel State Information (CSI) is a critical part of wireless communication systems, directly affecting signal transmission quality and overall system performance, cause the enhancement of CSI framework to be particularly important in the development of future 6G networks. Therefore, it is worth studying CSI reporting and CSI triggering.SUMMARY

[0004] In a first aspect of the present disclosure, there is provided a first apparatus. The first apparatus comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the first apparatus to: obtain a first indication indicative that at least one report corresponding to at least one channel state information, CSI, configuration is not carried by at least one first uplink resource which is scheduled by downlink control information, wherein the downlink control information triggers at least one measurement corresponding to the at least one CSI configuration and the at least one report is based on the at least one measurement; and skip, based on the first indication, a transmission of the at least one report on the atleast one first uplink resource to a second apparatus.

[0005] In a second aspect of the present disclosure, there is provided a second apparatus. The second apparatus comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the second apparatus to: transmit, to a first apparatus, a first indication indicative that at least one report corresponding to at least one channel state information, CSI, configuration is not carried by at least one first uplink resource which is scheduled by downlink control information, wherein the downlink control information triggers at least one measurement corresponding to the at least one CSI configuration and the at least one report is based on the at least one measurement.

[0006] In a third aspect of the present disclosure, there is provided a method. The method comprises: obtaining a first indication indicative that at least one report corresponding to at least one channel state information, CSI, configuration is not carried by at least one first uplink resource which is scheduled by downlink control information, wherein the downlink control information triggers at least one measurement corresponding to the at least one CSI configuration and the at least one report is based on the at least one measurement; and skipping, based on the first indication, a transmission of the at least one report on the at least one first uplink resource to a second apparatus.

[0007] In a fourth aspect of the present disclosure, there is provided a method. The method comprises: transmitting, to a first apparatus, a first indication indicative that at least one report corresponding to at least one channel state information, CSI, configuration is not carried by at least one first uplink resource which is scheduled by downlink control information, wherein the downlink control information triggers at least one measurement corresponding to the at least one CSI configuration and the at least one report is based on the at least one measurement.

[0008] In a fifth aspect of the present disclosure, there is provided a first apparatus. The first apparatus comprises means for obtaining a first indication indicative that at least one report corresponding to at least one channel state information, CSI, configuration is not carried by at least one first uplink resource which is scheduled by downlink control information, wherein the downlink control information triggers at least one measurement corresponding to the at least one CSI configuration and the at least one report is based on the at least one measurement; and means for skipping, based on the first indication, atransmission of the at least one report on the at least one first uplink resource to a second apparatus.

[0009] In a sixth aspect of the present disclosure, there is provided a second apparatus. The second apparatus comprises means for transmitting, to a first apparatus, a first indication indicative that at least one report corresponding to at least one channel state information, CSI, configuration is not carried by at least one first uplink resource which is scheduled by downlink control information, wherein the downlink control information triggers at least one measurement corresponding to the at least one CSI configuration and the at least one report is based on the at least one measurement.

[0010] In a seventh aspect of the present disclosure, there is provided a first apparatus. The first apparatus comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the first apparatus to: obtain a first indication indicative of at least one of a first trigger state for triggering a measurement or a second trigger state for triggering a measurement report; and perform the measurement or a transmission of the measurement report based on the first indication.

[0011] In an eighth aspect of the present disclosure, there is provided a second apparatus. The second apparatus comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the second apparatus to: transmit, to a first apparatus, a first indication indicative of at least one of a first trigger state for triggering a measurement or a second trigger state for triggering a measurement report.

[0012] In a ninth aspect of the present disclosure, there is provided a method. The method comprises: obtaining a first indication indicative of at least one of a first trigger state for triggering a measurement or a second trigger state for triggering a measurement report; and performing the measurement or a transmission of the measurement report based on the first indication.

[0013] In a tenth aspect of the present disclosure, there is provided a method. The method comprises: transmitting, to a first apparatus, a first indication indicative of at least one of a first trigger state for triggering a measurement or a second trigger state for triggering a measurement report.

[0014] In an eleventh aspect of the present disclosure, there is provided a first apparatus.The first apparatus comprises means for obtaining a first indication indicative of at least one of a first trigger state for triggering a measurement or a second trigger state for triggering a measurement report; and means for performing the measurement or a transmission of the measurement report based on the first indication.

[0015] In a twelfth aspect of the present disclosure, there is provided a second apparatus. The second apparatus comprises means for transmitting, to a first apparatus, a first indication indicative of at least one of a first trigger state for triggering a measurement or a second trigger state for triggering a measurement report.

[0016] In a thirteenth aspect of the present disclosure, there is provided a computer readable medium. The computer readable medium comprises instructions stored thereon for causing an apparatus to perform at least the method according to the third, or ninth aspect.

[0017] In a fourteenth aspect of the present disclosure, there is provided a computer readable medium. The computer readable medium comprises instructions stored thereon for causing an apparatus to perform at least the method according to the fourth, or tenth aspect.

[0018] It is to be understood that the Summary section is not intended to identify key or essential features of embodiments of the present disclosure, nor is it intended to be used to limit the scope of the present disclosure. Other features of the present disclosure will become easily comprehensible through the following description.BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Some example embodiments will now be described with reference to the accompanying drawings, where:

[0020] FIG. 1 illustrates an example communication environment in which example embodiments of the present disclosure can be implemented;

[0021] FIG. 2A and FIG. 2B illustrate schematic diagrams of CSI reporting, respectively;

[0022] FIG. 3A and FIG. 3B illustrate schematic diagrams of example scheduling restrictions, respectively;

[0023] FIG. 4 illustrates a signaling flow for CSI reporting in accordance with some example embodiments of the present disclosure;

[0024] FIG. 5A to FIG. 5E illustrate schematic diagrams of CSI reporting in accordance with some example embodiments of the present disclosure, respectively;

[0025] FIG. 6 illustrates a signaling flow for CSI reporting in accordance with some example embodiments of the present disclosure;

[0026] FIG. 7 A to FIG. 7E illustrates schematic diagrams of CSI reporting in accordance with some example embodiments of the present disclosure, respectively;

[0027] FIG. 8 illustrates a flowchart of a method implemented at a first apparatus in accordance with some example embodiments of the present disclosure;

[0028] FIG. 9 illustrates a flowchart of a method implemented at a second apparatus in accordance with some example embodiments of the present disclosure;

[0029] FIG. 10 illustrates a flowchart of a method implemented at a first apparatus in accordance with some example embodiments of the present disclosure;

[0030] FIG. 11 illustrates a flowchart of a method implemented at a second apparatus in accordance with some example embodiments of the present disclosure;

[0031] FIG. 12 illustrates a simplified block diagram of a device that is suitable for implementing example embodiments of the present disclosure; and

[0032] FIG. 13 illustrates a block diagram of an example computer readable medium in accordance with some example embodiments of the present disclosure.

[0033] Throughout the drawings, the same or similar reference numerals represent the same or similar element.DETAILED DESCRIPTION

[0034] 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.

[0035] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by oneof ordinary skills in the art to which this disclosure belongs.

[0036] References in the present disclosure to “one embodiment,” “an embodiment,” “an example embodiment,” and the like indicate that the embodiment described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

[0037] It shall be understood that although the terms “first,” “second,”..., etc. in front of noun(s) and the like may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another and they do not limit the order of the noun(s). For example, a first element could be termed a second element, and similarly, a second element could be termed a first element, without departing from the scope of example embodiments. As used herein, the term “and / or” includes any and all combinations of one or more of the listed terms.

[0038] As used herein, “at least one of the following: ” and “at least one of ” and similar wording, where the list of two or more elements are joined by “and” or “or”, mean at least any one of the elements, or at least any two or more of the elements, or at least all the elements.

[0039] As used herein, unless stated explicitly, performing a step “in response to A” does not indicate that the step is performed immediately after “A” occurs and one or more intervening steps may be included.

[0040] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. 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. It will be further understood that the terms “comprises”, “comprising”, “has”, “having”, “includes” and / or “including”, when used herein, specify the presence of stated features, elements, and / or components etc., but do not preclude the presence or addition of one or more other features, elements, components and / or combinations thereof.

[0041] As used in this application, the term “circuitry” may refer to one or more or all of the following:(a) hardware-only circuit implementations (such as implementations in only analog and / or digital circuitry) and(b) combinations of hardware circuits and software, such as (as applicable):(i) a combination of analog and / or digital hardware circuit(s) with software / firmware and(ii) any portions of hardware processor(s) with software (including digital signal processor(s)), software, and memory(ies) that work together to cause an apparatus, such as a mobile phone or server, to perform various functions) and(c) hardware circuit(s) and or processor(s), such as a microprocessor(s) or a portion of a microprocessor(s), that requires software (e.g., firmware) for operation, but the software may not be present when it is not needed for operation.

[0042] This definition of circuitry applies to all uses of this term in this application, including in any claims. As a further example, as used in this application, the term circuitry also covers an implementation of merely a hardware circuit or processor (or multiple processors) or portion of a hardware circuit or processor and its (or their) accompanying software and / or firmware. The term circuitry also covers, for example and if applicable to the particular claim element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in server, a cellular network device, or other computing or network device.

[0043] As used herein, the term “communication network” refers to a network following any suitable communication standards, such as New Radio (NR), Long Term Evolution (LTE), LTE-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), Narrow Band Internet of Things (NB-IoT) and so on. Furthermore, the communications between a terminal device and a network device in the communication network may be performed according to any suitable generation communication protocols, including, 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), 5.5G, the sixth generation (6G) communication protocols, and / or any other protocols either currently known or to be developed in the future. Embodiments of the present disclosure may be applied in various communication systems. Given the rapid development in communications, there will of course also be future type communication technologies and systems with which the present disclosure may be embodied. It should not be seen as limiting the scope of the present disclosure to only the aforementioned system.

[0044] As used herein, the term “network device” refers to a node in a communication network via which a terminal device accesses the network and receives services therefrom. The network device may refer to a base station (BS) or an access point (AP), for example, a node B (NodeB or NB), an evolved NodeB (eNodeB or eNB), an NR NB (also referred to as a gNB), a Remote Radio Unit (RRU), a radio header (RH), a remote radio head (RRH), a relay, an Integrated Access and Backhaul (IAB) node, a low power node such as a femto, a pico, a non-terrestrial network (NTN) or non-ground network device such as a satellite network device, a low earth orbit (LEO) satellite and a geosynchronous earth orbit (GEO) satellite, an aircraft network device, and so forth, depending on the applied terminology and technology. In some example embodiments, radio access network (RAN) split architecture comprises a Centralized Unit (CU) and a Distributed Unit (DU) at an IAB donor node. An IAB node comprises a Mobile Terminal (IAB-MT) part that behaves like a UE toward the parent node, and a DU part of an IAB node behaves like a base station toward the next-hop IAB node.

[0045] The term “terminal device” refers to any end device that may be capable of wireless communication. By way of example rather than limitation, a terminal device may also be referred to as a communication device, user equipment (UE), a Subscriber Station (SS), a Portable Subscriber Station, a Mobile Station (MS), or an Access Terminal (AT). The terminal device may include, but not limited to, a mobile phone, a cellular phone, a smart phone, voice over IP (VoIP) phones, wireless local loop phones, a tablet, a wearable terminal device, a personal digital assistant (PDA), portable computers, desktop computer, image capture terminal devices such as digital cameras, gaming terminal devices, music storage and playback appliances, vehicle-mounted wireless terminal devices, wireless endpoints, mobile stations, laptop-embedded equipment (LEE), laptop-mounted equipment (LME), USB dongles, smart devices, wireless customer-premises equipment (CPE), an Internet of Things (loT) device, a watch or other wearable, a head-mounteddisplay (HMD), a vehicle, a drone, a medical device and applications (e.g., remote surgery), an industrial device and applications (e.g., a robot and / or other wireless devices operating in an industrial and / or an automated processing chain contexts), a consumer electronics device, a device operating on commercial and / or industrial wireless networks, and the like. The terminal device may also correspond to a Mobile Termination (MT) part of an IAB node (e.g., a relay node). In the following description, the terms “terminal device”, “communication device”, “terminal”, “user equipment” and “UE” may be used interchangeably.

[0046] As used herein, the term “resource,” “transmission resource,” “resource block,” “physical resource block” (PRB), “uplink resource,” or “downlink resource” may refer to any resource for performing a communication, for example, a communication between a terminal device and a network device, 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 combination of the time, frequency, space and / or code domain 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.

[0047] CSI-reference signals (RS) are UE-specifically configured in radio resource control (RRC). However, CSI-RS reference signals can be shared among many UEs, that is, more than 1 UE are configured to receive the same resource elements (RE).

[0048] In general, in order to save on DL resources, the gNB would try to use cellspecific or group-specific CSI-RS resources. The worst case of DL overhead is with UE specific CSI-RS where the DL overhead increases linearly with the number of UEs in the cell. CSI-RS has many functions in NR, such as the followings:• CSI-RS for DL CSI acquisition;• CSI-RS for beam management (BM) (based on Ll-RSRP);• CSI-RS for tracking (TRS);• UL CSI acquisition in reciprocity-based UL precoding.In some applications, for example, CSI-RS for BM, CSI-RS are spatially beamformed into different directions.

[0049] In general, a UE can be configured with up to 48 report configurations (CSI- ReportConfig) per component carrier (CC) / 4 per bandwidth part (BWP). One CSI resource config within 1 report configuration can be configured with up to 16 resource sets for aperiodic CSI, otherwise configured with 1 resource set. In each CSI resource, up to 64 non-zero power (NZP) CSI-RS resources are set, and up to 32 antenna ports are set for 1 NZP-CSI-RS resource.

[0050] For CSI acquisition, the UE is configured also with a codebook type. Given the measured channel across a CSI-RS resource, the UE can choose a favourite codeword from the specified codebook, i.e., precoding matrix indicator (PMI), along with channel quality indicator (CQI), rank indicator (RI). UE can also be configured to measure several CSI-RS resources (up to 8) within a resource set and report the favourite resource, CSI- RS resource indicator (CRI), along with PMI, CQI and RI which corresponds to that selected resource.

[0051] In the time domain, a CSI-RS resource may start at any OFDM symbol of a slot and it spans 1, 2, or 4 OFDM symbols depending on the number of ports configured. Likewise, also the UE measurement reporting of CSI can be also operated with periodic, semi-persistent, or aperiodic manner, which is so-called report types in NR report configuration. However, there are certain limitations, based on which the UE periodic report can operate only based on the configured periodic CSI-RS resource-set, the UE semi-persistent report can operate based on both configured periodic and semi-persistent CSI-RS resource-set, and finally the UE aperiodic report can operate based on all periodic, semi-persistent, and aperiodic CSI-RS resource-set, that is: the periodic CSI-RS resources can be used to generate any report type; the semi-persistent and periodic CSI-RS resources can be used to generate semi-persistent CSI reports; and the aperiodic CSI-RS can only be utilized only to generate the aperiodic report.

[0052] As for frequency-granularity, the CSI report setting also defines which part of the bandwidth the CSI should correspond to, and in addition, what granularity in frequency the CSI should have. To accomplish this, the bandwidth of a BWP is divided into a number of subbands.

[0053] All CSI-RS resources within one set are configured with same density and same number of ports (nrofPorts), except for the NZP CSI-RS resources used for interference measurement. For semi-persistent and aperiodic CSI-RS, the actual triggering of CSI-RStransmission is per CSI-RS resource-set via either medium access control control element (MAC CE) or downlink control information (DCI). And a resource set can be used as part of UE report configurations describing what to be measured and, correspondingly, which measurement reporting are to be done by the UE. Specifically, if a CSI-RS resource-set is configured as ‘aperiodic’ by RRC, the CSI-RS resource set configuration includes a slot offset, aperiodicTriggeringOffset which defines the time interval between the triggering DCI and the CSI-RS transmission.

[0054] For aperiodic CSI (A-CSI) reporting up to 16 different reporting settings can be triggered with single Downlink Control Information (DCI) (e.g. for multiple component carriers) while semi-persistent CSI (SP-CSI) reporting can trigger only one report setting with a single DCI. In order to trigger several SP-CSI reports (each in different slots), multiple DCIs are needed.

[0055] For Type I and Type II CSI feedback on Physical Uplink Shared Channel (PUSCH), a CSI report comprises of two parts, Part 1 and Part 2. Part 1 may have a fixed payload size and is used to identify the number of information bits in Part 2. Part 1 may be transmitted in its entirety before Part 2.

[0056] As for Type I CSI feedback, Part 1 contains RI (if reported), CRI (if reported), Channel Quality Indicator (CQI) for the first codeword. Part 2 contains PMI (if reported), LI (if reported), and contains the CQI for the second codeword when RI (if reported) is larger than 4. As for Type II CSI feedback, Part 1 contains RI (if reported), CQI, and an indication of the number of non-zero wideband amplitude coefficients per layer for the Type II CSI (see sub-clause 5.2.2). The fields of Part 1 - RI (if reported), CQI, and the indication of the number of non-zero wideband amplitude coefficients for each layer - are separately encoded. Part 2 contains the PMI of the Type II CSI. Part 1 and 2 are separately encoded.

[0057] It is noted that the precoder matrices W in Type-I and Type-II codebooks can be described as being decomposed into two matrix factors which are each matrix factor such that W(il, i2) = Wl(il) W2(i2). In this case, W1 is precoder matrix targeting the longterm channel which is selected on a wide-band basis while W2 targets the short- term / frequency-selective properties of the channel and can be reported on a per-subband basis.

[0058] In some example embodiments, supports for both UE non-group and group-basedbeam reporting schemes (technical specification (TS) 38.214) are provided. Network can configure up to four CRIs / beams with Ll-RSRP values to be reported via Physical Uplink Control Channel (PUCCH) or Physical Uplink Shared Channel (PUSCH).

[0059] FIG. 1 illustrates 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 first apparatus 110 and a second apparatus 120, can communicate with each other. In the example of FIG. 1, the first apparatus 110 may be a UE and the second apparatus 120 may be a base station serving the UE. The serving area of the second apparatus 120 may be called a cell 102.

[0060] It is to be understood that the number of devices and their connections shown in FIG. 1 are only for the purpose of illustration without suggesting any limitation. The communication environment 100 may include any suitable number of devices configured to implementing 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 second apparatus 120 may be another device than a network device. Although illustrated as a terminal device, the first apparatus 110 may be another device than a terminal device.

[0061] In the following, for the purpose of illustration, some example embodiments are described with the first apparatus 110 operating as a UE and the second apparatus 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.

[0062] In some example embodiments, a link from the second apparatus 120 to the first apparatus 110 is referred to as a downlink (DL), while a link from the first apparatus 110 to the second apparatus 120 is referred to as an uplink (UL). In DL, the second apparatus 120 is a transmitting (TX) device (or a transmitter) and the first apparatus 110 is a receiving (RX) device (or a receiver). In UL, the first apparatus 110 is a TX device (or a transmitter) and the second apparatus 120 is a RX device (or a receiver).

[0063] Communications in the communication environment 100 may be implemented according to any proper communication protocol(s), comprising, but not limited to,cellular communication protocols of the first generation (1G), the second generation (2G), the third generation (3G), the fourth generation (4G), the fifth generation (5G), 5.5G, the sixth generation (6G), and the like, wireless local network communication protocols such as Institute for Electrical and Electronics Engineers (IEEE) 802.11 and the like, and / or any other protocols currently known or to be developed in the future. Moreover, the communication may utilize any proper wireless communication technology, comprising but not limited to: Code Division Multiple Access (CDMA), Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Frequency Division Duplex (FDD), Time Division Duplex (TDD), Multiple-Input Multiple-Output (MIMO), Orthogonal Frequency Division Multiple (OFDM), Discrete Fourier Transform spread OFDM (DFT-s-OFDM) and / or any other technologies currently known or to be developed in the future.

[0064] FIG. 2A and FIG. 2B illustrate schematic diagrams of CSI reporting, respectively. In some example embodiments, as for A-CSI K2 requirement, K2 limit for A-CSI is decided based on UE CSI computation time. In this case, Zref and Z'ref provide the minimum number of symbols between DCI for CSI report on PUSCH and corresponding CSI report(s) and n-th CSI report, respectively. In addition, the CSI computation delay requirement in case of Type I codebook with CRI, RI, CQI and PMI report is provided in some example embodiments. Reference is made to FIG. 2A, the PUSCH can be scheduled not sooner than a time 210 corresponding to PUSCH processing time. In other words, PUSCH scheduled by DCI is not expected to be scheduled sooner than time 210. This processing time corresponds to UE time processing capabilities for preparation of PUSCH, where multiple of such capabilities are supported in 5G new radio (NR). The time when UE may deliver (DCI-triggered) aperiodic CSI report on PUSCH depends on time offset from DCI that triggered the report and offset from the A-CSI-RS.

[0065] In some example embodiments, as for CSI computation delay requirement, different latency classes are defined for CSI reporting, such as Eow latency CSI report class, High latency class. This distinction is introduced to avoid same latency requirement for different computational complexities. As shown in FIG. 2B, the time instant 220 is the earliest time when A-CSI report based on aperiodic CSI can be delivered on PUSCH.

[0066] In some example embodiments of A-CSI reporting on PUSCH, as described above, scheduler needs to account for the processing timeline requirements. There isclearly longer or relaxed processing timeline to deliver PUSCH when A-CSI is scheduled on PUSCH, compared to timeline requirements, for example, PUSCH with data only. The problems due to out of order restrictions are described in detail below, and reference is made to FIG. 3 A and FIG. 3B, which illustrate schematic diagrams of example scheduling restrictions, respectively.

[0067] As shown in FIG. 3A, for PUSCH scheduling restrictions, after a first scheduled PUSCH 320, UE does not expect to be scheduled a second PUSCH 310 which is before the transmission on the first scheduled PUSCH 320. As shown in FIG. 3B, as for PDSCH hybrid automatic repeat request (HARQ-ACK) scheduling restriction, PDSCH HARQ- ACK needs to be delayed, which means that a later PDSCH cannot have earlier HARQ- ACK feedback on an uplink channel 330 (such as, PUCCH or PUSCH). As described above, restrictions including delays would be added for the scheduler. Therefore, A-CSI caused scheduling restrictions is a significant drawback. In order to address the above problems, solutions for CSI measurements and reporting are provided in the present disclosure.

[0068] In accordance with some example embodiments of the present disclosure, there is provided a solution for CSI measurements and reporting. The solution in the present disclosure enables removing or avoiding, or at least reducing the scheduling restrictions caused by long processing timeline for CSI reporting and the out-of-order restrictions, for PUSCH scheduling or PDSCH HARQ-ACK scheduling. In addition, the solution enables detaching the CSI measurement from the CSI reporting and allowing a sort of asynchronous or two-step operation.

[0069] Example embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0070] Example embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It is noted the order of acts shown in FIG. 4 and FIG. 6 is only an example not limitation. Acts can be performed in any suitable manner. Example embodiments described with reference to FIG. 4 to FIG. 7E can be implemented separately or combined in any manner. For example, one or more example embodiments shown in FIG. 4 can be combined with one or more example embodiments shown in one or more other drawings.

[0071] Reference is made to FIG. 4, which illustrates a signaling flow 400 for CSIreporting in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the signaling flow 400 will be discussed with reference to FIG. 1, for example, by using the first apparatus 110 and the second apparatus 120. It is noted that the order of acts / steps shown in FIG. 4 is only an example not limitation.

[0072] The first apparatus 110 obtains (4010) an indication indicative that at least one report corresponding to at least one CSI configuration is not carried by at least one first uplink resource which is scheduled by downlink control information. For example, the second apparatus 120 may transmit (4010’) the indication to the first apparatus 110. In some example embodiments, the downlink control information triggers at least one measurement corresponding to the at least one CSI configuration, and the at least one report is based on the at least one measurement. In some example embodiments, the indication may be in a form of a reporting category or a reporting type. In other words, the first apparatus 110 obtains the indication indicative that a first UL resource(s) / channel(s) indicated or scheduled by UL DCI to carry at least UL-SCH data and / or CSI report(s) corresponding to a different CSI configuration(s), where the DCI triggers at least CSI measurement(s) corresponding to the at least one CSI configuration, is not to carry at least one CSI report corresponding to the at least one CSI configuration. In this case, a second UL resource(s) / channel(s) which is different from the UL resource(s) / channel(s), may be configured or indicated to carry CSI report corresponding to the CSI configuration. Example embodiments of the second UL resources will be described later. The CSI configuration may be or may correspond to a CSI report configuration or a CSI report sub-configuration.

[0073] In some example embodiments, the indication may be an information element included in the at least one CSI configuration or may correspond to the at least one CSI configuration. In some example embodiments, the indication may be a trigger state or corresponds to the trigger state, such as at least one CSI trigger state. In some other example embodiments, the indication may be at least one explicit field in the downlink control information or may correspond to at least one explicit field in the downlink control information. Alternatively, the indication may be a sub -configuration included in the at least one CSI configuration or may correspond to the sub-configuration, and the configuration may include indication of UL resource, such as PUCCH / PUSCH resource or resource configuration. In some example embodiments, the indication may correspond to a dedicated radio network temporary identifier. In some example embodiments, theindication may correspond to at least one control resource set corresponding to a physical downlink control channel carrying the downlink control information. In some other example embodiments, the indication may correspond to at least one dedicated search space set over which the physical downlink control channel carrying the downlink control information is transmitted or sent.

[0074] In some example embodiments, the indication may be or corresponding to at least one report quantity. In some example embodiments, the indication may be received through MAC CE, or RRC. In some other example embodiments, as shown in FIG. 5A, which illustrates a schematic diagram of CSI reporting in accordance with some example embodiments of the present disclosure, the indication may be in form of a new reporting (or measurement and reporting) category or strategy (which may be defined or configured), which may be called asynchronous, or two-step or two-shot (measurement and) reporting. This parameter or information element may be configured under or to be associated to the least one CSI report configuration. In some example embodiments, this parameter may be indicated or updated via MAC CE or DCI. In some example embodiments, the parameter may indicate legacy-like operation, i.e., synchronous CSI reporting or one shot (measurement and) reporting.

[0075] Based on the indication, the first apparatus 110 skips (4015), or does not consider, a transmission of the at least one report on the at least one first uplink resource to a second apparatus 120. In this way, it can avoid or reduce the scheduling restrictions caused by long processing timeline for CSI (preparation and) reporting and the out-of-order restrictions, for PUSCH scheduling or PDSCH HARQ-ACK scheduling.

[0076] In some example embodiments, the first apparatus 110 may skip (4015) the transmission by performing a transmission using the at least one first uplink resource without including the at least one report in the transmission. Alternatively, or additionally, the first apparatus 110 may skip (4015) the transmission by performing a transmission of the at least one report using at least one second uplink resource. For example, based on the obtained indication, the first apparatus 110 determines not to include the at least one CSI report into the UL resource(s) / channel(s) (such as, the at least one first uplink resource). The UL resource(s) / channel(s) may be indicated or scheduled by DCI to carry at least UL-SCH (data) and / or CSI report(s) corresponding to a different CSI configuration(s).

[0077] In some example embodiments, the first apparatus 110 may obtain (4020) a first time offset between the at least one first uplink resource and a physical downlink control channel carrying the downlink control information. In some example embodiments, the first apparatus 110 may be configured with a first time offset for the first uplink resource or channel. Reference is made to FIG. 5B, which illustrates a schematic diagram of CSI reporting in accordance with some example embodiments of the present disclosure, the first time offset 520 may be between the first uplink resource 530 and PDCCH 510. After obtaining the first time offset, the first apparatus may perform (4025) an uplink transmission based on the first time offset (i.e., by performing the transmission after the time offset).

[0078] Referring back to FIG. 4, in some example embodiments, the first apparatus 110 may obtain (4030) at least one second uplink resource for transmitting the at least one report. For example, the second apparatus 120 may transmit (4035) another indication indicative of the at least one second uplink resource to the first apparatus 110. In some example embodiments, the other indication may be included in the downlink control information. Alternatively, the other indication may be the same as the indication.

[0079] In some other example embodiments, the first apparatus 110 may obtain (4040) a second time offset, which is used to determine at least one second uplink resource. In other words, the first apparatus 110 may be configured with a second time offset for the second uplink resource or channel. Reference is made to FIG. 5C, in some examples, the second time offset 540 may be between a triggering instant 550 for the at least one report (or DCI triggering the CSI reporting) and a last or first symbol of the at least one second uplink resource 560. In some other examples, as shown in FIG. 5D, the second time offset 540 may be between the first uplink resource 570 and the last or first symbol of the at least one second uplink resource 560. Alternatively, as shown in FIG. 5E, the second time offset 540 may be between a physical downlink control channel 580 carrying the downlink control information and the last or first symbol of the at least one second uplink resource 560. The last or first symbol of the at least one second uplink resource 560 may carry the at least one CSI report.

[0080] In some example embodiments, the first apparatus 110 may map (4045) or multiplex the at least one report to the at least one second uplink resource. In some example embodiments, the at least one second uplink resource may be or may correspondto one of: an available PUSCH, a configured or indicated PUSCH, or a restricted set of PUSCHs.

[0081] In some example embodiments, the first apparatus 110 may transmit (4050) the at least one report on the at least one second uplink resource to the second apparatus 120. In this way, it achieves detaching the CSI measurement from the CSI reporting and allowing a sort of asynchronous or two-step operation.

[0082] In some example embodiments, a CSI reporting may be pushed and handled by MAC layer. In this case, the CSI report corresponding the at least one CSI configuration would essentially be allowed to be carried or mapped into any available PUSCH or into some specific configured or indicated set of PUSCHs, or restricted set of PUSCHs.

[0083] In some example embodiments, the at least one second uplink resource may be at least one physical uplink shared channel (PUSCH) resource or at least one physical uplink control channel (PUCCH) resource. In some example embodiments, the at least one PUCCH resource may be associated with the at least one CSI configuration. In some other example embodiments, the at least one PUSCH resource is associated with the at least one CSI configuration. In some example embodiments, the at least one second uplink resource for transmitting the at least one report may be associated with at least one of: at least one cell, at least one component carrier, at least one bandwidth part (or frequency allocation), at least one time instant, or at least one time slot. This cell or component carrier, bandwidth part, time instant, time slot may be different from those corresponding to the first uplink resources or channels. In other words, the first apparatus may be indicated or configured with at least one second uplink resource, PUSCH or PUCCH, which is different from the uplink resource or channel indicated or scheduled by uplink DCI to carry at least uplink-SCH data and / or CSI reports corresponding to a different CSI configuration, in order to carry the CSI measurement triggered by the DCI. In some example embodiments, at least one PUCCH resource is associated with the CSI configuration for CSI reporting. In some other example embodiments, at least one PUSCH resource may be associated with the at least one CSI configuration. For example, a configured grant PUSCH configuration may be associated with the CSI report configuration. In some other example embodiments, an indication of PUCCH / PUSCH resource may be through the DCI, such as, in form of codepoint pointing to at least a PUCCH / PUSCH resource.

[0084] Reference is made to FIG. 6, which illustrates a signaling flow 600 for CSI reporting in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the signaling flow 600 will be discussed with reference to FIG. 1, for example, by using the first apparatus 110 and the second apparatus 120. It is noted that the order of acts / steps shown in FIG. 6 is only an example not limitation.

[0085] The first apparatus 110 obtains (6010) a first indication indicative of at least one of a first trigger state for triggering a measurement or a second trigger state for triggering a measurement report. For example, the second apparatus 120 may transmit (6005) the first indication to the first apparatus 110.

[0086] After obtaining the first indication, the first apparatus 110 performs (6015) a measurement or a transmission of the measurement report based on the first indication. In other words, reference is made to FIG. 7A, the first apparatus 110 may be configured with a trigger state 1 (i.e., the first trigger state) for triggering CSI measurements corresponding to the at least one CSI configuration, based on related configuration or sub-configuration. In addition, the first apparatus 110 may be configured with another trigger state 2 (i.e., the second trigger state) for triggering the corresponding CSI reports, based on related configuration or sub-configuration. The at least one CSI configuration may be or may correspond to at least one CSI report configuration, or to at least one CSI measurement and / or reporting configuration. In addition, the CSI reporting may be aperiodic CSI reporting or any other type of CSI reporting, such as semi-persistent CSI reporting. In this way, it can remove the processing delay due to the CSI reporting.

[0087] Referring back to FIG. 6, in some example embodiments, if the first indication is indicative of the first trigger state, the first apparatus 110 may perform (6015) the measurement corresponding to at least one CSI configuration related to the first trigger state. In some other example embodiments, if the first indication is indicative of the second trigger state, the first apparatus 110 may transmit (6055) the measurement report corresponding to at least one CSI configuration related to the second trigger state to a second apparatus 120. For example, as shown in FIG. 7A, if the first apparatus 110 receives, on the PDCCH 701 the DCI that schedules the PUSCH 703 and indicates the trigger state 1 for triggering the CSI measurement corresponding to CSI report configuration #1, the first apparatus 110 may perform the uplink transmission without including the CSI report corresponding to the CSI report configuration #1 on the PUSCH703. If the first apparatus 110 receives, on the PDCCH 702 the DCI that schedules the PUSCH 704 and indicates the trigger state 2 for triggering the CSI reporting corresponding to the CSI report configuration #1, the first apparatus 110 may transmit the CSI report corresponding to CSI report configuration #1 on the PUSCH 704.

[0088] In some example embodiments, the trigger states (such as, the first and second trigger states) may be associated to each other. For example, if one of the first or second trigger state is indicated, the first apparatus 110 may apply (6025) the other trigger state of the first or second trigger state based on a trigger state configuration. In some example embodiments, if one of the first or second trigger state is received in downlink control information, the other trigger state may be applicable based on the reception of the downlink control information. For example, if one trigger state is indicated in DCI, the other trigger state may be assumed as indicated or as applicable. Alternatively, if one of the first or second trigger state is received in the downlink control information, the other trigger state may be applicable after a time offset from the reception of the downlink control information. For example, if one trigger state is indicated in DCI or MAC CE, the other trigger state may be assumed as indicated or as applicable a time offset after the first trigger state is indicated.

[0089] In some example embodiments, the first trigger state may be from a list of trigger states for triggering one or more measurements that includes the measurement. In addition, the second trigger state may be from a list of trigger states for triggering one or more measurement reports that includes the measurement report. There may be association or mapping between the states from each list. In addition, the first apparatus 110 may be provided indication, e.g., through PDCCH / DCI (or even in MAC CE), through new or existing at least one field / bit, indicative of which list the indicated trigger state, e.g., in DCI, belongs to.

[0090] In some example embodiments, the first indication may indicate the first trigger state which triggers the measurement for a CSI report configuration. In addition, the first trigger state may also trigger a measurement reporting for a further CSI report configuration where a measurement corresponding to the further CSI report configuration has been done previously. In this case, in some example embodiments, the second apparatus 120 may transmit (6030) a second indication which includes the second trigger state for triggering the measurement report for the CSI report configuration to the firstapparatus 110. The second trigger state may also trigger the measurement for another CSI report configuration. That is, the first apparatus 110 may be configured with a trigger state that points to at least one CSI measurements configuration and to at least one CSI report configuration. The first apparatus 110 may be indicated with a trigger state which would then trigger CSI measurements corresponding to at least one CSI configuration and CSI reporting corresponding to at least one (other) CSI configuration, for which measurements have been triggered previously. In other words, the first apparatus 110 may be configured or indicated via RRC and / or MAC CE, with a list of trigger states which could comprise a mix of trigger states for CSI measurements and for CSI reporting, which would correspond to at least one codepoint. The first apparatus 110 may then be indicated via DCI, or MAC CE, with a codepoint, where such codepoint may point to at least one trigger state for CSI measurement and / or to at least one trigger state for CSI reporting. The measurement and reporting may correspond to different CSI (report) configurations. In some examples, the trigger through DCI or MAC CE for CSI measurements corresponding to the at least one report configuration may be different from the trigger through DCI or MAC CE of the corresponding CSI report. For example, as shown in FIG. 7B, If the first apparatus 110 receives, on the PDCCH 711 the DCI that schedules the PUSCH 703 and indicates the trigger state 1 for triggering the CSI measurement corresponding to CSI report configuration #1 and for triggering the CSI reporting corresponding to CSI report configuration #2, the first apparatus 110 may perform the uplink transmission on PUSCH 721. Alternatively, or in addition, the first apparatus 110 may transmit the CSI report corresponding to CSI report configuration #2 on the PUSCH 721. If the first apparatus 110 receives, on the PDCCH 712 the DCI that schedules the PUSCH 704 and indicates the trigger state 2 for triggering the CSI reporting corresponding to the CSI report configuration #1, the first apparatus 110 may transmit the CSI report corresponding to CSI report configuration #1 on the PUSCH 722.

[0091] In some example embodiments, the first trigger state and the second trigger state may correspond to different CSI configurations. In some example embodiments, if the first indication is indicative of the first and second trigger states and the first trigger state corresponds to a measurement configuration that is associated with a first CSI configuration and the second trigger state corresponds to a report configuration that is associated with a second CSI configuration, the first apparatus may perform (6015) the measurement based on the measurement configuration. In addition, the first apparatusmay transmit (6055) the measurement report based on the reporting configuration. In this way, it achieves detaching the CSI measurement from the CSI reporting and allowing a sort of asynchronous or two-step operation.

[0092] In some other example embodiments, the first trigger state is the same as the second trigger state. For example, the first apparatus 110 may be configured or specified with the following behavior: the first indication of the trigger state triggers CSI measurements of corresponding CSI report configuration(s), and the second indication of the same trigger state triggers CSI reporting corresponding to the CSI configuration(s). This behavior may be defined within a period of time. In this case, the first apparatus 110 may receive (6005) the first indication indicative of the first trigger state from a second apparatus 120. After receiving the first indication, the first apparatus 110 may perform (6015) the measurement. In addition, the first apparatus 110 may receive (6030) a second indication indicative of the first trigger state from the second apparatus, and the first apparatus 110 may transmit (6055) the measurement report corresponding to the measurement based on the reception of the second indication. In this case, the first indication is received before the second indication.

[0093] In some example embodiments, the first apparatus 110 may obtain (6035) at least one second uplink resource for transmitting the measurement report. For example, the second apparatus 120 may transmit (6040) a third indication to the first apparatus 110, which is indicative of the at least one second uplink resource. For example, the third indication may be included in downlink control information. In some example embodiments, the first apparatus 110 may obtain (6045) a second time offset for determining the at least one second uplink resource.

[0094] In some example embodiments, the first apparatus 110 may map (6050) or multiplex the measurement report to the at least one second uplink resource. In some example embodiments, the at least one second uplink resource may be or may correspond to one of: an available PUSCH, a configured or indicated PUSCH, or a restricted set of PUSCHs. In some example embodiments, then the first apparatus 110 may transmit (6055) the measurement report to the second apparatus 120 on the at least one second uplink resource.

[0095] In some example embodiments, reference is made to FIG. 7C, the second time offset 740 may be between a triggering instant 750 for the at least one report (or DCItriggering the CSI reporting) and a last or first symbol of the at least one second uplink resource 760. In some other examples, as shown in FIG. 7D, the second time offset 740 may be between the first uplink resource 770 and the last or first symbol of the at least one second uplink resource 760. Alternatively, as shown in FIG. 7E, the second time offset 740 may be between a downlink control information 780 and the last or first symbol of the at least one second uplink resource 760. The last or first symbol of the at least one second uplink resource 760 may carry the at least one CSI report.

[0096] In some example embodiments, the at least one second uplink resource may be at least one physical uplink shared channel (PUSCH) resource or at least one physical uplink control channel (PUCCH) resource. In some example embodiments, the at least one PUCCH resource may be associated with the at least one CSI configuration. In some other example embodiments, the at least one PUSCH resource is associated with the at least one CSI configuration. In some example embodiments, the at least one second uplink resource for transmitting the at least one report may be associated, e.g., through indication or configuration, with at least one of: at least one cell, at least one component carrier, at least one carrier, at least one bandwidth part (or frequency allocation), at least one time instant, at least one time slot, a transmission-reception point, a remote radio head, a network node, a CORESET Pool index, a set of uplink or downlink reference signals. The at least one (serving) cell, at least one component carrier, at least one carrier, and / or at least one bandwidth part (or frequency allocation) may be different than, or same as, (serving) cell, component carrier, carrier, and / or bandwidth part (or frequency allocation) corresponding to the at least one first uplink resource.

[0097] FIG. 8 shows a flowchart of an example method 800 implemented at a first apparatus in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 800 will be described from the perspective of the first apparatus 110 in FIG. 1.

[0098] At block 810, the first apparatus obtains a first indication indicative that at least one report corresponding to at least one channel state information, CSI, configuration is not carried by at least one first uplink resource which is scheduled by downlink control information, wherein the downlink control information triggers at least one measurement corresponding to the at least one CSI configuration and the at least one report is based on the at least one measurement.

[0099] At block 820, the first apparatus skips, based on the first indication, a transmission of the at least one report on the at least one first uplink resource to a second apparatus.

[0100] In some example embodiments, the first apparatus is caused to skip the transmission of the at least one report on the at least one first uplink resource by at least one of: performing a transmission using the at least one first uplink resource without including the at least one report in the transmission, or performing a transmission of the at least one report using at least one second uplink resource.

[0101] In some example embodiments, the first indication is an information element comprised in the at least one CSI configuration or corresponds to the at least one CSI configuration, or wherein the first indication is a trigger state or corresponds to the trigger state, or wherein the first indication is a report quantity or corresponds to the report quantity, or wherein the first indication is a field in the downlink control information or corresponds to the field in the downlink control information, or wherein the first indication is a sub-configuration comprised in the at least one CSI configuration or corresponds to the sub-configuration, or wherein the first indication corresponds to a dedicated radio network temporary identifier, or wherein the first indication corresponds to a control resource set corresponding to a physical downlink control channel carrying the downlink control information, or wherein the first indication corresponds to a search space set over which the physical downlink control channel carrying the downlink control information is transmitted.

[0102] In some example embodiments, the first indication is in a form of a reporting category or a reporting type.

[0103] In some example embodiments, the method 800 further comprises: obtaining a first time offset between the at least one first uplink resource and a physical downlink control channel carrying the downlink control information; and performing an uplink transmission based on the first time offset.

[0104] In some example embodiments, the method 800 further comprises: obtaining at least one second uplink resource for transmitting the at least one report; and transmitting to the second apparatus the at least one report on the at least one second uplink resource.

[0105] In some example embodiments, the first apparatus is caused to obtain the at leastone second uplink resource by: receiving from the second apparatus a second indication indicative of the at least one second uplink resource.

[0106] In some example embodiments, the second indication is comprised in the downlink control information, or the second indication is the same as the first indication.

[0107] In some example embodiments, the method 800 further comprises: obtaining a second time offset for determining the at least one second uplink resource, wherein the second time offset is one of: between a triggering instant for the at least one report and a last or first symbol of the at least one second uplink resource, between the at least one first uplink resource and the last or first symbol of the at least one second uplink resource, or between a physical downlink control channel carrying the downlink control information and the last or first symbol of the at least one second uplink resource.

[0108] In some example embodiments, the at least one second uplink resource is at least one physical uplink shared channel (PUSCH) resource or at least one physical uplink control channel (PUCCH) resource.

[0109] In some example embodiments, the at least one PUCCH resource is associated with the at least one CSI configuration, or wherein the at least one PUSCH resource is associated with the at least one CSI configuration.

[0110] In some example embodiments, the at least one second uplink resource for transmitting the at least one report is associated with at least one of: at least one cell, at least one component carrier, at least one bandwidth part, at least one time instant, or at least one time slot.

[0111] In some example embodiments, the method 800 further comprises: mapping the at least one report into one of: an available PUSCH, a configured or indicated PUSCH, or a restricted set of PUSCHs.

[0112] In some example embodiments, the first apparatus is a terminal device or comprised in a terminal device and the second apparatus is a network device.

[0113] FIG. 9 shows a flowchart of an example method 900 implemented at a second apparatus in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 900 will be described from the perspective of the second apparatus 120 in FIG. 1.

[0114] At block 910, the second apparatus transmits, to a first apparatus, a first indication indicative that at least one report corresponding to at least one channel state information, CSI, configuration is not carried by at least one first uplink resource which is scheduled by downlink control information, wherein the downlink control information triggers at least one measurement corresponding to the at least one CSI configuration and the at least one report is based on the at least one measurement.

[0115] In some example embodiments, the first indication is an information element comprised in the at least one CSI configuration or corresponds to the at least one CSI configuration, or wherein the first indication is a trigger state or corresponds to the trigger state, or wherein the first indication is a report quantity or corresponds to the report quantity, or wherein the first indication is a field in the downlink control information or corresponds to the field in the downlink control information, or wherein the first indication is a sub-configuration comprised in the at least one CSI configuration or corresponds to the sub-configuration, or wherein the first indication corresponds to a dedicated radio network temporary identifier, or wherein the first indication corresponds to a control resource set corresponding to a physical downlink control channel carrying the downlink control information, or wherein the first indication corresponds to a search space set over which the physical downlink control channel carrying the downlink control information is transmitted.

[0116] In some example embodiments, the first indication is in a form of a reporting category or a reporting type.

[0117] In some example embodiments, the method 900 further comprises: transmitting, to the first apparatus, information indicating a first time offset between the at least one first uplink resource and a physical downlink control channel carrying the downlink control information.

[0118] In some example embodiments, the method 900 further comprises: receiving, from the first apparatus, the at least one report on at least one second uplink resource.

[0119] In some example embodiments, the method 900 further comprises: transmitting to the first apparatus a second indication indicative of the at least one second uplink resource.

[0120] In some example embodiments, the second indication is comprised in thedownlink control information, or the second indication is the same as the first indication.

[0121] In some example embodiments, the method 900 further comprises: transmitting, to the first apparatus, information indicating a second time offset for determining the at least one second uplink resource, wherein the second time offset is one of: between a triggering instant for the at least one report and a last or first symbol of the at least one second uplink resource, between the at least one first uplink resource and the last or first symbol of the at least one second uplink resource, or between a physical downlink control channel carrying the downlink control information and the last or first symbol of the at least one second uplink resource.

[0122] In some example embodiments, the at least one second uplink resource is at least one physical uplink shared channel (PUSCH) resource or at least one physical uplink control channel (PUCCH) resource.

[0123] In some example embodiments, the at least one PUCCH resource is associated with the at least one CSI configuration, or wherein the at least one PUSCH resource is associated with the at least one CSI configuration.

[0124] In some example embodiments, the at least one second uplink resource for transmitting the at least one report is associated with at least one of: at least one cell, at least one component carrier, at least one bandwidth part, at least one time instant, or at least one time slot.

[0125] In some example embodiments, the first apparatus is a terminal device or comprised in a terminal device and the second apparatus is a network device.

[0126] FIG. 10 shows a flowchart of an example method 1000 implemented at a first apparatus in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 1000 will be described from the perspective of the first apparatus 110 in FIG. 1.

[0127] At block 1010, the first apparatus obtains a first indication indicative of at least one of a first trigger state for triggering a measurement or a second trigger state for triggering a measurement report.

[0128] At block 1020, the first apparatus performs the measurement or a transmission of the measurement report based on the first indication.

[0129] In some example embodiments, the method 1000 further comprises: based on a determination of the first indication indicative of the first trigger state, performing the measurement corresponding to at least one channel state information, CSI, configuration related to the first trigger state.

[0130] In some example embodiments, the method 1000 further comprises: based on a determination of the first indication indicative of the second trigger state, transmitting the measurement report corresponding to at least one CSI configuration related to the second trigger state to a second apparatus.

[0131] In some example embodiments, the method 1000 further comprises: in response to one of the first or second trigger state being indicated, applying the other trigger state based on a trigger state configuration.

[0132] In some example embodiments, in response to that one of the first or second trigger state is received in downlink control information, the other trigger state is applicable based on the reception of the downlink control information, or in response to that one of the first or second trigger state is received in the downlink control information, the other trigger state is applicable after a time offset from the reception of the downlink control information.

[0133] In some example embodiments, the first trigger state is from a list of trigger states for triggering one or more measurements including the measurement, and the second trigger state is from a list of trigger states for triggering one or more measurement reports including the measurement report.

[0134] In some example embodiments, the method 1000 further comprises: based on a determination that the first indication comprises the first trigger state for triggering the measurement corresponding to a channel state information, CSI, configuration, receiving from a second apparatus, a second indication indicative of the second trigger state for triggering the measurement report for the measurement.

[0135] In some example embodiments, the first trigger state also triggers a measurement report corresponding to a further CSI configuration for which measurement has been done previously, and the second trigger state also triggers a measurement corresponding to another CSI configuration.

[0136] In some example embodiments, the method 1000 further comprises: based on adetermination that the first indication is indicative of the first and second trigger states and based on a determination that the first trigger state corresponds to a measurement configuration that is associated with a first CSI configuration and the second trigger state corresponds to a report configuration that is associated with a second CSI configuration, performing the measurement based on the measurement configuration; and transmitting the measurement report based on the reporting configuration.

[0137] In some example embodiments, the first trigger state is the same as the second trigger state, the method 1000 further comprises: receiving, from a second apparatus, the first indication indicative of the first trigger state; performing the measurement based on the reception of the first indication; receiving, from the second apparatus, a second indication indicative of the first trigger state; and transmitting the measurement report corresponding to the measurement based on the reception of the second indication, wherein the first indication is received before the second indication.

[0138] In some example embodiments, the method 1000 further comprises: obtaining at least one second uplink resource for transmitting the measurement report; and transmitting to the second apparatus the measurement report on the at least one second uplink resource.

[0139] In some example embodiments, the method 1000 further comprises: receiving from the second apparatus a third indication indicative of the at least one second uplink resource.

[0140] In some example embodiments, the third indication is comprised in downlink control information.

[0141] In some example embodiments, the method 1000 further comprises: obtaining a second time offset for determining the at least one second uplink resource, wherein the second time offset is one of: between a triggering instant for the measurement report and a last or first symbol of the at least one second uplink resource, between at least one first uplink resource which is scheduled by downlink control information and the last or first symbol of the at least one second uplink resource, or between the downlink control information and the last or first symbol of the at least one second uplink resource.

[0142] In some example embodiments, the at least one second uplink resource is at least one physical uplink shared channel (PUSCH) resource or at least one physical uplinkcontrol channel (PUCCH) resource.

[0143] In some example embodiments, the at least one PUCCH resource is associated with the at least one CSI configuration, or the at least one PUSCH resource is associated with the at least one CSI configuration.

[0144] In some example embodiments, the at least one second uplink resource is associated with at least one of: at least one cell, at least one component carrier, at least one bandwidth part, at least one time instant, or at least one time slot.

[0145] In some example embodiments, the method 1000 further comprises: mapping the measurement report into one of: an available PUSCH, a configured or indicated PUSCH, or a restricted set of PUSCHs.

[0146] In some example embodiments, the first apparatus is a terminal device and the second apparatus is a network device.

[0147] FIG. 11 shows a flowchart of an example method 1100 implemented at a second apparatus in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 1100 will be described from the perspective of the second apparatus 120 in FIG. 1.

[0148] At block 1110, the second apparatus transmits, to a first apparatus, a first indication indicative of at least one of a first trigger state for triggering a measurement or a second trigger state for triggering a measurement report.

[0149] In some example embodiments, the method 1100 further comprises: based on a determination of the first indication indicative of the second trigger state, receiving the measurement report corresponding to at least one CSI configuration related to the second trigger state from the first apparatus.

[0150] In some example embodiments, in response to one of the first or second trigger state being indicated, the other trigger state is applicable based on a trigger state configuration.

[0151] In some example embodiments, in response to that one of the first or second trigger state is received in downlink control information, the other trigger state is applicable based on the reception of the downlink control information, or in response to that one of the first or second trigger state is received in the downlink control information,the other trigger state is applicable after a time offset from the reception of the downlink control information.

[0152] In some example embodiments, the first trigger state is from a list of trigger states for triggering one or more measurements including the measurement, and the second trigger state is from a list of trigger states for triggering one or more measurement reports including the measurement report.

[0153] In some example embodiments, the method 1100 further comprises: based on a determination that the first indication comprises the first trigger state for triggering the measurement corresponding to a channel state information, CSI, configuration, transmitting to the first apparatus, a second indication indicative of the second trigger state for triggering the measurement report for the measurement.

[0154] In some example embodiments, the first trigger state also triggers a measurement report corresponding to a further CSI configuration for which measurement has been done previously, and the second trigger state also triggers a measurement corresponding to another CSI configuration .

[0155] In some example embodiments, the method 1100 further comprises: based on a determination that the first indication is indicative of the first and second trigger states and based on a determination that the first trigger state corresponds to a measurement configuration that is associated with a first CSI configuration and the second trigger state corresponds to a report configuration that is associated with a second CSI configuration, receiving the measurement report based on the reporting configuration.

[0156] In some example embodiments, the method 1100 further comprises: transmitting, to the first apparatus, the first indication indicative of the first trigger state; transmitting, to the first apparatus, a second indication indicative of the first trigger state; and receiving the measurement report corresponding to the measurement based on the reception of the second indication, wherein the first indication is transmitted before the second indication.

[0157] In some example embodiments, the method 1100 further comprises: receiving, from the first apparatus, the measurement report on at least one second uplink resource.

[0158] In some example embodiments, the method 1100 further comprises: transmitting to the first apparatus a second indication indicative of the at least one second uplink resource.

[0159] In some example embodiments, the second indication is comprised in downlink control information, or the second indication is the same as the first indication.

[0160] In some example embodiments, the method 1100 further comprises: transmitting, to the first apparatus, information indicating a second time offset for determining the at least one second uplink resource, wherein the second time offset is one of: between a triggering instant for the measurement report and a last or first symbol of the at least one second uplink resource, between the at least one first uplink resource and the last or first symbol of the at least one second uplink resource, or between a physical downlink control channel carrying the first indication and the last or first symbol of the at least one second uplink resource.

[0161] In some example embodiments, the at least one second uplink resource is at least one physical uplink shared channel (PUSCH) resource or at least one physical uplink control channel (PUCCH) resource.

[0162] In some example embodiments, the at least one PUCCH resource is associated with the at least one CSI configuration, or wherein the at least one PUSCH resource is associated with the at least one CSI configuration.

[0163] In some example embodiments, the at least one second uplink resource for transmitting the measurement report is associated with at least one of: at least one cell, at least one component carrier, at least one bandwidth part, at least one time instant, or at least one time slot.

[0164] In some example embodiments, the first apparatus is a terminal device or comprised in a terminal device and the second apparatus is a network device.

[0165] In some example embodiments, a first apparatus capable of performing any of the method 800 (for example, the first apparatus 110 in FIG. 1) may comprise means for performing the respective operations of the method 800. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module. The first apparatus may be implemented as or included in the first apparatus 110 in FIG. 1.

[0166] In some example embodiments, the first apparatus comprises means for obtaining a first indication indicative that at least one report corresponding to at least one channel state information, CSI, configuration is not carried by at least one first uplink resourcewhich is scheduled by downlink control information, wherein the downlink control information triggers at least one measurement corresponding to the at least one CSI configuration and the at least one report is based on the at least one measurement; and means for skipping, based on the first indication, a transmission of the at least one report on the at least one first uplink resource to a second apparatus.

[0167] In some example embodiments, the first apparatus is caused to skip the transmission of the at least one report on the at least one first uplink resource by at least one of: performing a transmission using the at least one first uplink resource without including the at least one report in the transmission, or performing a transmission of the at least one report using at least one second uplink resource.

[0168] In some example embodiments, the first indication is an information element comprised in the at least one CSI configuration or corresponds to the at least one CSI configuration, or wherein the first indication is a trigger state or corresponds to the trigger state, or wherein the first indication is a report quantity or corresponds to the report quantity, or wherein the first indication is a field in the downlink control information or corresponds to the field in the downlink control information, or wherein the first indication is a sub-configuration comprised in the at least one CSI configuration or corresponds to the sub-configuration, or wherein the first indication corresponds to a dedicated radio network temporary identifier, or wherein the first indication corresponds to a control resource set corresponding to a physical downlink control channel carrying the downlink control information, or wherein the first indication corresponds to a search space set over which the physical downlink control channel carrying the downlink control information is transmitted.

[0169] In some example embodiments, the first indication is in a form of a reporting category or a reporting type.

[0170] In some example embodiments, the first apparatus further comprises: means for obtaining a first time offset between the at least one first uplink resource and a physical downlink control channel carrying the downlink control information; and means for performing an uplink transmission based on the first time offset.

[0171] In some example embodiments, the first apparatus further comprises: means for obtaining at least one second uplink resource for transmitting the at least one report; and means for transmitting to the second apparatus the at least one report on the at least onesecond uplink resource.

[0172] In some example embodiments, the first apparatus is caused to obtain the at least one second uplink resource by: receiving from the second apparatus a second indication indicative of the at least one second uplink resource.

[0173] In some example embodiments, the second indication is comprised in the downlink control information, or the second indication is the same as the first indication.

[0174] In some example embodiments, the first apparatus further comprises: means for obtaining a second time offset for determining the at least one second uplink resource, wherein the second time offset is one of: between a triggering instant for the at least one report and a last or first symbol of the at least one second uplink resource, between the at least one first uplink resource and the last or first symbol of the at least one second uplink resource, or between a physical downlink control channel carrying the downlink control information and the last or first symbol of the at least one second uplink resource.

[0175] In some example embodiments, the at least one second uplink resource is at least one physical uplink shared channel (PUSCH) resource or at least one physical uplink control channel (PUCCH) resource.

[0176] In some example embodiments, the at least one PUCCH resource is associated with the at least one CSI configuration, or the at least one PUSCH resource is associated with the at least one CSI configuration.

[0177] In some example embodiments, the at least one second uplink resource for transmitting the at least one report is associated with at least one of: at least one cell, at least one component carrier, at least one bandwidth part, at least one time instant, or at least one time slot.

[0178] In some example embodiments, the first apparatus further comprises: means for mapping the at least one report into one of: an available PUSCH, a configured or indicated PUSCH, or a restricted set of PUSCHs.

[0179] In some example embodiments, the first apparatus is a terminal device or comprised in a terminal device and the second apparatus is a network device.

[0180] In some example embodiments, a second apparatus capable of performing any of the method 900 (for example, the second apparatus 120 in FIG. 1) may comprise meansfor performing the respective operations of the method 900. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module. The second apparatus may be implemented as or included in the second apparatus 120 in FIG. 1.

[0181] In some example embodiments, the second apparatus comprises means for transmitting, to a first apparatus, a first indication indicative that at least one report corresponding to at least one channel state information, CSI, configuration is not carried by at least one first uplink resource which is scheduled by downlink control information, wherein the downlink control information triggers at least one measurement corresponding to the at least one CSI configuration and the at least one report is based on the at least one measurement.

[0182] In some example embodiments, the first indication is an information element comprised in the at least one CSI configuration or corresponds to the at least one CSI configuration, or the first indication is a trigger state or corresponds to the trigger state, or the first indication is a report quantity or corresponds to the report quantity, or the first indication is a field in the downlink control information or corresponds to the field in the downlink control information, or the first indication is a sub-configuration comprised in the at least one CSI configuration or corresponds to the sub-configuration, or the first indication corresponds to a dedicated radio network temporary identifier, or the first indication corresponds to a control resource set corresponding to a physical downlink control channel carrying the downlink control information, or the first indication corresponds to a search space set over which the physical downlink control channel carrying the downlink control information is transmitted.

[0183] In some example embodiments, the first indication is in a form of a reporting category or a reporting type.

[0184] In some example embodiments, the second apparatus further comprises: means for transmitting, to the first apparatus, information indicating a first time offset between the at least one first uplink resource and a physical downlink control channel carrying the downlink control information.

[0185] In some example embodiments, the second apparatus further comprises: means for receiving, from the first apparatus, the at least one report on at least one second uplink resource.

[0186] In some example embodiments, the second apparatus further comprises: means for transmitting to the first apparatus a second indication indicative of the at least one second uplink resource.

[0187] In some example embodiments, the second indication is comprised in the downlink control information, or the second indication is the same as the first indication.

[0188] In some example embodiments, the second apparatus further comprises: means for transmitting, to the first apparatus, information indicating a second time offset for determining the at least one second uplink resource, wherein the second time offset is one of: between a triggering instant for the at least one report and a last or first symbol of the at least one second uplink resource, between the at least one first uplink resource and the last or first symbol of the at least one second uplink resource, or between a physical downlink control channel carrying the downlink control information and the last or first symbol of the at least one second uplink resource.

[0189] In some example embodiments, the at least one second uplink resource is at least one physical uplink shared channel (PUSCH) resource or at least one physical uplink control channel (PUCCH) resource.

[0190] In some example embodiments, the at least one PUCCH resource is associated with the at least one CSI configuration, or the at least one PUSCH resource is associated with the at least one CSI configuration.

[0191] In some example embodiments, the at least one second uplink resource for transmitting the at least one report is associated with at least one of: at least one cell, at least one component carrier, at least one bandwidth part, at least one time instant, or at least one time slot.

[0192] In some example embodiments, the first apparatus is a terminal device or comprised in a terminal device and the second apparatus is a network device.

[0193] In some example embodiments, a first apparatus capable of performing any of the method 1000 (for example, the first apparatus 110 in FIG. 1) may comprise means for performing the respective operations of the method 1000. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module. The first apparatus may be implemented as or included in the first apparatus 110 in FIG. 1.

[0194] In some example embodiments, the first apparatus comprises means for obtaining a first indication indicative of at least one of a first trigger state for triggering a measurement or a second trigger state for triggering a measurement report; and means for performing the measurement or a transmission of the measurement report based on the first indication.

[0195] In some example embodiments, the first apparatus further comprises: means for based on a determination of the first indication indicative of the first trigger state, performing the measurement corresponding to at least one channel state information, CSI, configuration related to the first trigger state.

[0196] In some example embodiments, the first apparatus further comprises: means for based on a determination of the first indication indicative of the second trigger state, transmitting the measurement report corresponding to at least one CSI configuration related to the second trigger state to a second apparatus.

[0197] In some example embodiments, the first apparatus further comprises: means for in response to one of the first or second trigger state being indicated, applying the other trigger state based on a trigger state configuration.

[0198] In some example embodiments, in response to that one of the first or second trigger state is received in downlink control information, the other trigger state is applicable based on the reception of the downlink control information, or in response to that one of the first or second trigger state is received in the downlink control information, the other trigger state is applicable after a time offset from the reception of the downlink control information.

[0199] In some example embodiments, the first trigger state is from a list of trigger states for triggering one or more measurements including the measurement, and the second trigger state is from a list of trigger states for triggering one or more measurement reports including the measurement report.

[0200] In some example embodiments, the first apparatus further comprises: means for based on a determination that the first indication comprises the first trigger state for triggering the measurement corresponding to a channel state information, CSI, configuration, receiving from a second apparatus, a second indication indicative of the second trigger state for triggering the measurement report for the measurement.

[0201] In some example embodiments, the first trigger state and the second trigger state correspond to different channel state information, CSI, configurations.

[0202] In some example embodiments, the first apparatus further comprises: means for based on a determination that the first indication is indicative of the first and second trigger states and based on a determination that the first trigger state corresponds to a measurement configuration that is associated with a first CSI configuration and the second trigger state corresponds to a report configuration that is associated with a second CSI configuration, performing the measurement based on the measurement configuration; and means for transmitting the measurement report based on the reporting configuration.

[0203] In some example embodiments, the first trigger state is the same as the second trigger state, and the first apparatus further comprises: means for receiving, from a second apparatus, the first indication indicative of the first trigger state; means for performing the measurement based on the reception of the first indication; means for receiving, from the second apparatus, a second indication indicative of the first trigger state; and means for transmitting the measurement report corresponding to the measurement based on the reception of the second indication, wherein the first indication is received before the second indication.

[0204] In some example embodiments, the first apparatus further comprises: means for obtaining at least one second uplink resource for transmitting the measurement report; and means for transmitting to the second apparatus the measurement report on the at least one second uplink resource.

[0205] In some example embodiments, the first apparatus further comprises: means for receiving from the second apparatus a third indication indicative of the at least one second uplink resource.

[0206] In some example embodiments, the third indication is comprised in downlink control information.

[0207] In some example embodiments, the first apparatus further comprises: means for obtaining a second time offset for determining the at least one second uplink resource, wherein the second time offset is one of: between a triggering instant for the measurement report and a last or first symbol of the at least one second uplink resource, between at least one first uplink resource which is scheduled by downlink control information andthe last or first symbol of the at least one second uplink resource, or between the downlink control information and the last or first symbol of the at least one second uplink resource.

[0208] In some example embodiments, the at least one second uplink resource is at least one physical uplink shared channel (PUSCH) resource or at least one physical uplink control channel (PUCCH) resource.

[0209] In some example embodiments, the at least one PUCCH resource is associated with the at least one CSI configuration, or the at least one PUSCH resource is associated with the at least one CSI configuration.

[0210] In some example embodiments, the at least one second uplink resource is associated with at least one of: at least one cell, at least one component carrier, at least one bandwidth part, at least one time instant, or at least one time slot.

[0211] In some example embodiments, the first apparatus further comprises: means for mapping the measurement report into one of: an available PUSCH, a configured or indicated PUSCH, or a restricted set of PUSCHs.

[0212] In some example embodiments, the first apparatus is a terminal device and the second apparatus is a network device.

[0213] In some example embodiments, a second apparatus capable of performing any of the method 1100 (for example, the second apparatus 120 in FIG. 1) may comprise means for performing the respective operations of the method 1100. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module. The second apparatus may be implemented as or included in the second apparatus 120 in FIG. 1.

[0214] In some example embodiments, the second apparatus comprises means for transmitting, to a first apparatus, a first indication indicative of at least one of a first trigger state for triggering a measurement or a second trigger state for triggering a measurement report.

[0215] In some example embodiments, the second apparatus further comprises: means for based on a determination of the first indication indicative of the second trigger state, receiving the measurement report corresponding to at least one CSI configuration related to the second trigger state from the first apparatus.

[0216] In some example embodiments, in response to one of the first or second trigger state being indicated, the other trigger state is applicable based on a trigger state configuration.

[0217] In some example embodiments, in response to that one of the first or second trigger state is received in downlink control information, the other trigger state is applicable based on the reception of the downlink control information, or in response to that one of the first or second trigger state is received in the downlink control information, the other trigger state is applicable after a time offset from the reception of the downlink control information.

[0218] In some example embodiments, the first trigger state is from a list of trigger states for triggering one or more measurements including the measurement, and the second trigger state is from a list of trigger states for triggering one or more measurement reports including the measurement report.

[0219] In some example embodiments, the second apparatus further comprises: means for based on a determination that the first indication comprises the first trigger state for triggering the measurement corresponding to a channel state information, CSI, configuration, transmitting to the first apparatus, a second indication indicative of the second trigger state for triggering the measurement report for the measurement.

[0220] In some example embodiments, the first trigger state and the second trigger state correspond to different channel state information, CSI, configurations.

[0221] In some example embodiments, the second apparatus further comprises: means for based on a determination that the first indication is indicative of the first and second trigger states and based on a determination that the first trigger state corresponds to a measurement configuration that is associated with a first CSI configuration and the second trigger state corresponds to a report configuration that is associated with a second CSI configuration, receiving the measurement report based on the reporting configuration.

[0222] In some example embodiments, the second apparatus further comprises: means for transmitting, to the first apparatus, the first indication indicative of the first trigger state; means for transmitting, to the first apparatus, a second indication indicative of the first trigger state; and means for receiving the measurement report corresponding to the measurement based on the reception of the second indication, wherein the first indicationis transmitted before the second indication.

[0223] In some example embodiments, the second apparatus further comprises: means for receiving, from the first apparatus, the measurement report on at least one second uplink resource.

[0224] In some example embodiments, the second apparatus further comprises: means for transmitting to the first apparatus a second indication indicative of the at least one second uplink resource.

[0225] In some example embodiments, the second indication is comprised in downlink control information, or the second indication is the same as the first indication.

[0226] In some example embodiments, the second apparatus further comprises: means for transmitting, to the first apparatus, information indicating a second time offset for determining the at least one second uplink resource, wherein the second time offset is one of: between a triggering instant for the measurement report and a last or first symbol of the at least one second uplink resource, between the at least one first uplink resource and the last or first symbol of the at least one second uplink resource, or between a physical downlink control channel carrying the first indication and the last or first symbol of the at least one second uplink resource.

[0227] In some example embodiments, the at least one second uplink resource is at least one physical uplink shared channel (PUSCH) resource or at least one physical uplink control channel (PUCCH) resource.

[0228] In some example embodiments, the at least one PUCCH resource is associated with the at least one CSI configuration, or the at least one PUSCH resource is associated with the at least one CSI configuration.

[0229] In some example embodiments, the at least one second uplink resource for transmitting the measurement report is associated with at least one of: at least one cell, at least one component carrier, at least one bandwidth part, at least one time instant, or at least one time slot.

[0230] In some example embodiments, the first apparatus is a terminal device or comprised in a terminal device and the second apparatus is a network device.

[0231] FIG. 12 is a simplified block diagram of a device 1200 that is suitable forimplementing example embodiments of the present disclosure. The device 1200 may be provided to implement a communication device, for example, the first apparatus 110 or the second apparatus 120 as shown in FIG. 1. As shown, the device 1200 includes one or more processors 1210, one or more memories 1220 coupled to the processor 1210, and one or more communication modules 1240 coupled to the processor 1210.

[0232] The communication module 1240 is for bidirectional communications. The communication module 1240 has one or more communication interfaces to facilitate communication with one or more other modules or devices. The communication interfaces may represent any interface that is necessary for communication with other network elements. In some example embodiments, the communication module 1240 may include at least one antenna.

[0233] The processor 1210 may be of any type suitable to the local technical network and may include one or more of the following: general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples. The device 1200 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.

[0234] The memory 1220 may include one or more non-volatile memories and one or more volatile memories. Examples of the non-volatile memories include, but are not limited to, a Read Only Memory (ROM) 1224, an electrically programmable read only memory (EPROM), a flash memory, a hard disk, a compact disc (CD), a digital video disk (DVD), an optical disk, a laser disk, and other magnetic storage and / or optical storage. Examples of the volatile memories include, but are not limited to, a randomaccess memory (RAM) 1222 and other volatile memories that will not last in the powerdown duration.

[0235] A computer program 1230 includes computer executable instructions that are executed by the associated processor 1210. The instructions of the program 1230 may include instructions for performing operations / acts of some example embodiments of the present disclosure. The program 1230 may be stored in the memory, e.g., the ROM 1224. The processor 1210 may perform any suitable actions and processing by loading the program 1230 into the RAM 1222.

[0236] The example embodiments of the present disclosure may be implemented bymeans of the program 1230 so that the device 1200 may perform any process of the disclosure as discussed with reference to FIG. 2 to FIG. 11. The example embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.

[0237] In some example embodiments, the program 1230 may be tangibly contained in a computer readable medium which may be included in the device 1200 (such as in the memory 1220) or other storage devices that are accessible by the device 1200. The device 1200 may load the program 1230 from the computer readable medium to the RAM 1222 for execution. In some example embodiments, the computer readable medium may include any types of non-transitory storage medium, such as ROM, EPROM, a flash memory, a hard disk, CD, DVD, and the like. The term “non-transitory,” as used herein, is a limitation of the medium itself (i.e., tangible, not a signal) as opposed to a limitation on data storage persistency (e.g., RAM vs. ROM).

[0238] FIG. 13 shows an example of the computer readable medium 1300 which may be in form of CD, DVD or other optical storage disk. The computer readable medium 1300 has the program 1230 stored thereon.

[0239] 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, and other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. Although various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representations, it is to be understood that the block, apparatus, system, technique or method 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.

[0240] Some example embodiments of the present disclosure also provide at least one computer program product tangibly stored on a computer readable medium, such as a non-transitory computer readable medium. The computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target physical or virtual processor, to carry out any of the methods as described above. 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.

[0241] Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. The program code 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 code, 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.

[0242] In the context of the present disclosure, the computer program code or related data may be carried by any suitable carrier to enable the device, apparatus or processor to perform various processes and operations as described above. Examples of the carrier include a signal, computer readable medium, and the like.

[0243] The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer 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 computer readable storage medium would include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a randomaccess memory (RAM), a read-only memory (ROM), an erasable programmable readonly memory (EPROM or Flash memory), an optical fiber, a portable compact disc readonly memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0244] Further, although 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 desirableresults. In certain circumstances, multitasking and parallel processing may be advantageous. Likewise, although 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. Unless explicitly stated, certain features that are described in the context of separate embodiments may also be implemented in combination in a single embodiment. Conversely, unless explicitly stated, various features that are described in the context of a single embodiment may also be implemented in a plurality of embodiments separately or in any suitable sub-combination.

[0245] Although the present disclosure has been described in languages 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

I / WE CLAIM:

1. A first apparatus comprising: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the first apparatus to: obtain a first indication indicative that at least one report corresponding to at least one channel state information, CSI, configuration is not carried by at least one first uplink resource which is scheduled by downlink control information, wherein the downlink control information triggers at least one measurement corresponding to the at least one CSI configuration and the at least one report is based on the at least one measurement; and skip, based on the first indication, a transmission of the at least one report on the at least one first uplink resource to a second apparatus.

2. The first apparatus of claim 1, wherein the first apparatus is caused to skip the transmission of the at least one report on the at least one first uplink resource by at least one of: performing a transmission using the at least one first uplink resource without including the at least one report in the transmission, or performing a transmission of the at least one report using at least one second uplink resource.

3. The first apparatus of claim 1 or 2, wherein the first indication is an information element comprised in the at least one CSI configuration or corresponds to the at least one CSI configuration, or wherein the first indication is a trigger state or corresponds to the trigger state, or wherein the first indication is a report quantity or corresponds to the report quantity, or wherein the first indication is a field in the downlink control information or corresponds to the field in the downlink control information, or wherein the first indication is a sub-configuration comprised in the at least one CSI configuration or corresponds to the sub-configuration, or wherein the first indication corresponds to a dedicated radio network temporaryidentifier, or wherein the first indication corresponds to a control resource set corresponding to a physical downlink control channel carrying the downlink control information , or wherein the first indication corresponds to a search space set over which the physical downlink control channel carrying the downlink control information is transmitted.

4. The first apparatus of any of claims 1-3, wherein the first indication is in a form of a reporting category or a reporting type.

5. The first apparatus of any of claims 1-4, wherein the first apparatus is caused to: obtain a first time offset between the at least one first uplink resource and a physical downlink control channel carrying the downlink control information; and perform an uplink transmission based on the first time offset.

6. The first apparatus of any of claims 1-5, wherein the first apparatus is caused to: obtain at least one second uplink resource for transmitting the at least one report; and transmit to the second apparatus the at least one report on the at least one second uplink resource.

7. The first apparatus of claim 6, wherein the first apparatus is caused to obtain the at least one second uplink resource by: receiving from the second apparatus a second indication indicative of the at least one second uplink resource.

8. The first apparatus of claim 7, wherein the second indication is comprised in the downlink control information, or the second indication is the same as the first indication.

9. The first apparatus of any of claims 6-8, wherein the first apparatus is caused to:obtain a second time offset for determining the at least one second uplink resource , wherein the second time offset is one of: between a triggering instant for the at least one report and a last or first symbol of the at least one second uplink resource, between the at least one first uplink resource and the last or first symbol of the at least one second uplink resource, or between a physical downlink control channel carrying the downlink control information and the last or first symbol of the at least one second uplink resource.

10. The first apparatus of any of claims 6-9, wherein the at least one second uplink resource is at least one physical uplink shared channel (PUSCH) resource or at least one physical uplink control channel (PUCCH) resource.

11. The first apparatus of claim 10, wherein the at least one PUCCH resource is associated with the at least one CSI configuration, or wherein the at least one PUSCH resource is associated with the at least one CSI configuration.

12. The first apparatus of any of claims 6-11, wherein the at least one second uplink resource for transmitting the at least one report is associated with at least one of: at least one cell, at least one component carrier, at least one bandwidth part, at least one time instant, or at least one time slot.

13. The first apparatus of any of claims 1-12, wherein the first apparatus is caused to: map the at least one report into one of: an available PUSCH, a configured or indicated PUSCH, or a restricted set of PUSCHs.

14. The first apparatus of any of claims 1-13, wherein the first apparatus is a terminal device or comprised in a terminal device and the second apparatus is a network device.

15. A second apparatus comprising: at least one processor; andat least one memory storing instructions that, when executed by the at least one processor, cause the second apparatus to: transmit, to a first apparatus, a first indication indicative that at least one report corresponding to at least one channel state information, CSI, configuration is not carried by at least one first uplink resource which is scheduled by downlink control information, wherein the downlink control information triggers at least one measurement corresponding to the at least one CSI configuration and the at least one report is based on the at least one measurement.

16. The second apparatus of claim 15, wherein the first indication is an information element comprised in the at least one CSI configuration or corresponds to the at least one CSI configuration, or wherein the first indication is a trigger state or corresponds to the trigger state, or wherein the first indication is a report quantity or corresponds to the report quantity, or wherein the first indication is a field in the downlink control information or corresponds to the field in the downlink control information, or wherein the first indication is a sub -configuration comprised in the at least one CSI configuration or corresponds to the sub-configuration, or wherein the first indication corresponds to a dedicated radio network temporary identifier, or wherein the first indication corresponds to a control resource set corresponding to a physical downlink control channel carrying the downlink control information , or wherein the first indication corresponds to a search space set over which the physical downlink control channel carrying the downlink control information is transmitted.

17. The second apparatus of claim 15 or 16, wherein the first indication is in a form of a reporting category or a reporting type.

18. The second apparatus of any of claims 15-17, wherein the second apparatus is caused to: transmit, to the first apparatus, information indicating a first time offsetbetween the at least one first uplink resource and a physical downlink control channel carrying the downlink control information.

19. The second apparatus of any of claims 15-18, wherein the second apparatus is caused to: receive, from the first apparatus, the at least one report on at least one second uplink resource.

20. The second apparatus of claim 19, wherein the second apparatus is caused to: transmit to the first apparatus a second indication indicative of the at least one second uplink resource.

21. The second apparatus of claim 20, wherein the second indication is comprised in the downlink control information, or the second indication is the same as the first indication.

22. The second apparatus of any of claims 19-21, wherein the second apparatus is caused to: transmit, to the first apparatus, information indicating a second time offset for determining the at least one second uplink resource, wherein the second time offset is one of: between a triggering instant for the at least one report and a last or first symbol of the at least one second uplink resource, between the at least one first uplink resource and the last or first symbol of the at least one second uplink resource, or between a physical downlink control channel carrying the downlink control information and the last or first symbol of the at least one second uplink resource.

23. The second apparatus of any of claims 19-21, wherein the at least one second uplink resource is at least one physical uplink shared channel (PUSCH) resource or at least one physical uplink control channel (PUCCH) resource.

24. The second apparatus of claim 23, wherein the at least one PUCCH resourceis associated with the at least one CSI configuration, or wherein the at least one PUSCH resource is associated with the at least one CSI configuration.

25. The second apparatus of any of claims 19-24, wherein the at least one second uplink resource for transmitting the at least one report is associated with at least one of: at least one cell, at least one component carrier, at least one bandwidth part, at least one time instant, or at least one time slot.

26. A method comprising: obtaining a first indication indicative that at least one report corresponding to at least one channel state information, CSI, configuration is not carried by at least one first uplink resource which is scheduled by downlink control information, wherein the downlink control information triggers at least one measurement corresponding to the at least one CSI configuration and the at least one report is based on the at least one measurement; and skipping, based on the first indication, a transmission of the at least one report on the at least one first uplink resource to a second apparatus.

27. A method comprising: transmitting, to a first apparatus, a first indication indicative that at least one report corresponding to at least one channel state information, CSI, configuration is not carried by at least one first uplink resource which is scheduled by downlink control information, wherein the downlink control information triggers at least one measurement corresponding to the at least one CSI configuration and the at least one report is based on the at least one measurement.

28. A first apparatus comprising: means for obtaining a first indication indicative that at least one report corresponding to at least one channel state information, CSI, configuration is not carried by at least one first uplink resource which is scheduled by downlink control information, wherein the downlink control information triggers at least one measurement corresponding to the at least one CSI configuration and the at least one report is based on the at least one measurement; andmeans for skipping, based on the first indication, a transmission of the at least one report on the at least one first uplink resource to a second apparatus.

29. A second apparatus comprising: means for transmitting, to a first apparatus, a first indication indicative that at least one report corresponding to at least one channel state information, CSI, configuration is not carried by at least one first uplink resource which is scheduled by downlink control information, wherein the downlink control information triggers at least one measurement corresponding to the at least one CSI configuration and the at least one report is based on the at least one measurement.

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