Enhanced CSI reporting framework

Abstract

Embodiments of the present disclosure relate to an enhanced CSI reporting framework. A method may include determining whether channel state information of at least one first sub-configuration in a channel state information reporting configuration and channel state information of at least one second sub-configuration in the channel state information reporting configuration are associated to a channel state information reference signal resource; responding to the condition that the channel state information of the at least one first sub-configuration and the channel state information of the at least one second sub-configuration are associated with the channel state information reference signal resource, and determining to send at least one indicator in the channel state information of the at least one first sub-configuration; and determining that the at least one indicator is not sent in the channel state information of the at least one second sub-configuration in response to the association of the channel state information of the at least one first sub-configuration and the channel state information of the at least one second sub-configuration to the channel state information reference signal resource.

Description

Technical Field

[0001] These examples and non-limiting example embodiments relate generally to communications, and more particularly to an enhanced CSI reporting framework. Background Art

[0002] It is known to perform communication channel measurements in a communication network. BRIEF DESCRIPTION OF THE DRAWINGS

[0003] The foregoing aspects and other features are explained in the following description in conjunction with the accompanying drawings.

[0004] Figure 1 Examples are shown that illustrate aspects of the examples described herein.

[0005] Figure 2 Examples are shown that illustrate aspects of the examples described herein.

[0006] Figure 3 Examples are shown that illustrate aspects of the examples described herein.

[0007] Figure 4 Examples are shown that illustrate aspects of the examples described herein.

[0008] Figure 5 is a block diagram of one possible non-limiting system in which example embodiments may be practiced.

[0009] Figure 6 is an example apparatus configured to implement the examples described herein.

[0010] Figure 7 A representation of an example of a non-volatile storage medium for storing instructions implementing the examples described herein is shown.

[0011] Figure 8 is an example method based on the examples described herein.

[0012] Fig. 9 is an example method based on the examples described herein. DETAILED DESCRIPTION

[0013] Network energy conservation is important for environmental sustainability, reducing environmental impact (greenhouse gas emissions) and saving operating costs. As 5G becomes more widespread across industries and geographic regions, networks become denser, using more antennas, greater bandwidth and more frequency bands to handle more advanced services and applications that require very high data rates (such as XR). The environmental impact of 5G needs to be controlled and new solutions need to be developed to improve network energy conservation.

[0014] Energy consumption has become a key part of operators' OPEX. According to a report from GSMA, the energy cost of mobile networks accounts for about 23% of operators' total costs. The largest part of energy consumption comes from the radio access network, especially the active antenna unit (AAU), with data centers and fiber transmission accounting for a smaller share. The power consumption of radio access can be divided into two parts: a dynamic part, which is consumed only when data transmission / reception is in progress; and a static part, which is consumed all the time to maintain the necessary operation of the radio access equipment even when data transmission / reception is not in progress.

[0015] The CSI-RS reference signal is configured UE-specifically in RRC. However, the CSI-RS reference signal may be shared among many UEs, i.e., more than one UE is configured to receive the same resource element (RE).

[0016] Generally speaking, to save DL resources, gNB will try to use cell-specific or group-specific CSI-RS resources. The worst case for DL ​​overhead is UE-specific CSI-RS, where the DL overhead increases linearly with the number of UEs in the cell.

[0017] CSI-RS has many functions in NR, such as: CSI-RS for DLCSI acquisition, CSI-RS for beam management (BM) (based on L1-RSRP), CSI-RS for tracking (TRS), and UL CSI acquisition in reciprocity-based UL precoding.

[0018] In some applications (eg, CSI-RS for BM), the CSI-RS is spatially beamformed into different directions.

[0019] In general, a UE may be configured with up to 48 reporting configurations per component carrier (CC) / 4 per bandwidth part (BWP).

[0020] One CSI resource configuration in one reporting configuration may be configured with up to 16 resource sets (aperiodic CSI) and 1 resource set (others).

[0021] Up to 64 NZP CSI-RS resources in each CSI resource set and up to 32 antenna ports in 1 NZP CSI-RS resource.

[0022] For CSI acquisition, the UE is also configured with a codebook type. Given a measurement channel across CSI-RS resources, the UE can select the most preferred codeword from the specified codebook, i.e., precoding matrix indicator (PMI), channel quality indicator (CQI), rank indicator (RI). The UE can also be configured to measure several CSI-RS resources (up to 8) in a resource set and report the most preferred resource, CSI-RS resource indicator (CRI), and the PMI, CQI and RI corresponding to the selected resource.

[0023] Time domain: In the time domain, the CSI-RS resource can start at any OFDM symbol of the slot and it spans 1, 2, or 4 OFDM symbols, depending on the number of configured ports.

[0024] Similarly, UE measurement reporting of CSI can also operate in a periodic, semi-persistent or aperiodic manner, which are the so-called report types in the NR reporting configuration. However, there are certain restrictions based on which UE periodic reporting can operate only based on the configured periodic CSI-RS resource sets, UE semi-persistent reporting can operate based on both configured periodic and semi-persistent CSI-RS resource sets, and finally UE aperiodic reporting can operate based on all periodic, semi-persistent and aperiodic CSI-RS resource sets. In short: periodic CSI-RS resources can be used to generate any report type, semi-persistent and periodic CSI-RS resources can be used to generate semi-persistent CSI reports, and aperiodic CSI-RS can only be used to generate aperiodic reports.

[0025] Except for the NZP CSI-RS resources used for interference measurement, all CSI-RS resources within a set are configured to have the same density and the same nrofPort.

[0026] For semi-persistent and aperiodic CSI-RS, the actual triggering of CSI-RS transmission is per CSI-RS resource set, via MAC CE or DCI. And the resource set can be used as part of the UE reporting configuration, which describes what to measure and correspondingly which measurement reports to be made by the UE. In particular, if the CSI-RS resource set is configured as "aperiodic" by RRC, the CSI-RS resource set configuration includes a slot offset, aperiodicTriggeringOffset, that defines the time interval between the triggering DCI and the CSI-RS transmission.

[0027] For A-CSI reporting, up to 16 different reporting settings (e.g., for multiple component carriers) can be triggered with a single DCI, while SP-CSI reporting can only trigger one reporting setting with a single DCI. In order to trigger several SP-CSI reports (each in a different time slot), multiple DCIs are required.

[0028] CSI report content: For Type I and Type IICSI feedback on PUSCH, the CSI report contains two parts. Part 1 has a fixed payload size and is used to identify the number of information bits in Part 2. Part 1 should be transmitted in its entirety before Part 2. For Type I CSI feedback, Part 1 contains the CQI, RI (if reported), and CRI (if reported) for the first codeword. Part 2 contains the PMI (if reported), LI (if reported), and the CQI for the second codeword when the RI (if reported) is greater than 4. For Type IICSI feedback, Part 1 contains the RI (if reported), CQI, and an indication of the number of non-zero wideband amplitude coefficients per layer for Type IICSI (see subclause 5.2.2). The fields of Part 1 - RI (if reported), CQI, and an indication of the number of non-zero wideband amplitude coefficients per layer - are coded separately. Part 2 contains the PMI for Type IICSI. Part 1 and Part 2 are coded separately.

[0029] It should be noted that the precoder matrix W in the Type I and Rel-15 Type II codebooks can be described as being decomposed into two matrix factors, each of which makes W(i1, i2) = W1(i1)W2(i2), where W1 is the precoder matrix for the long-term channel, selected on a wideband basis, and W2 is for the short-term / frequency selectivity characteristics of the channel and can be reported on a per-subband basis.

[0030] CSI calculation: The UE shall calculate the CSI parameters (if reported) assuming the following dependencies between the CSI parameters (if reported). The PMI shall be calculated based on the reported RI and CRI. The RI shall be calculated based on the reported CRI.

[0031] The approved Rel-18 WID (Work Item Description) includes instructions for specifying the necessary enhancements to CSI and beam management related procedures, including measurement and reporting as well as signaling, to enable efficient adaptation and power adaptation of spatial elements (e.g. antenna ports, active transceiver chains).

[0032] The main considerations and intentions of the Rel-18 work include: adapting the spatial mode of DL transmission by (dynamically) muting / unmuting the spatial elements, enhanced CSI feedback from the UE taking into account different spatial modes to assist the network in making appropriate decisions about adaptation, and the gNB can indicate spatial mode changes so that the UE adapts reception accordingly (support in RAN1 is pending). There are similar considerations for power domain adaptation.

[0033] As mentioned before, (dynamic) spatial domain adaptation and power domain adaptation will be specified in Rel-18 NR. CSI enhancement will be specified where the UE can calculate and report multiple CSI corresponding to different spatial (adaptation) modes and / or power control offsets. This is to enable the gNB to make appropriate decisions regarding spatial adaptation and power adaptation.

[0034] The examples described herein focus primarily on the CSI reporting content (and CSI calculation) aspects of CSI for enabling spatial adaptation and / or power adaptation. In particular, at least for type 2 spatial domain adaptation and power domain adaptation (and potentially for type 1 spatial domain adaptation), the focus is primarily on conditions (or rules) and enhanced operations under which some CSI content can be reduced without any or little performance degradation. This will significantly result in a reduction in UL / CSI overhead.

[0035] In the solution described herein, a CSI reporting configuration comprising or associated with multiple sub-configurations is given (wherein a sub-configuration may comprise or be associated with one or more CSI-RS resources).

[0036] If at least two CSIs corresponding to at least two subconfigurations are associated to the same CSI-RS resource by selected CRI (CSI-RS resource indicator) or by configuration, only one PMI (precoding matrix indicator) is reported. In particular, for such at least two subconfigurations, the UE reports the PMI in the CSI (content) of only one of these subconfigurations, i.e., the UE omits the PMI from the CSI (content) of the other subconfigurations (of the at least two subconfigurations); in some cases, such omission of a subconfiguration may result in the omission of all Part 2 CSI.

[0037] In an example, even though two or more CSI-RS resources respectively associated with two or more sub-configurations may be different, the two or more CSI-RS resources may be determined or considered to be the same CSI-RS resource; for example, when the two or more CSI-RS resources are linked by configuration and / or by CRI selection. In this example, the UE 10 determines to report a corresponding indicator of channel state information from one or more of the two or more sub-configurations, and determines not to report a corresponding indicator of channel state information from one or more of the two or more sub-configurations.

[0038] The UE 10 determines that the CSI should include a sub-configuration of the PMI based on one or more of the following (1-2):

[0039] 1. The UE may be specified or configured / instructed (e.g., via RRC) to report PMI only in the CSI of the subconfiguration with the lowest / highest index or in the first subconfiguration of at least two subconfigurations. This may be applicable if the rank indicator is the same for at least two subconfigurations. The above method may also be used / adopted in addition or alternatively for reporting LI (layer indicator, indicating which columns of PMI correspond to the strongest layer). In particular, the UE will report LI only in the CSI of the subconfiguration with the lowest / highest index or in the first subconfiguration.

[0040] 2. The UE may be specified or configured / indicated (e.g., via RRC) to report the PMI only in the CSI of the subconfiguration with the highest rank indicator among the at least two subconfigurations. This may be applicable if the rank indicator is different for some or all of the at least two subconfigurations. The above method may also be used / adopted in addition or alternatively for reporting the LI. In particular, the UE shall report the LI only in the CSI of the subconfiguration with the highest rank indicator among the at least two subconfigurations.

[0041] In an embodiment, only the PMI wideband (WB) part (W1) is shared between the CSI of at least two subconfigurations, and therefore the PMI subband (SB) part (W2) is different. In particular, for at least two subconfigurations, the UE reports the PMI wideband part (W1) in the CSI (content) of only one of these subconfigurations, i.e., the UE omits the PMI wideband part (W1) from the CSI (content) of the other subconfigurations (of the at least two subconfigurations). Similar to the above, it may be specified or configured / indicated (e.g., via RRC) that the UE reports the PMI wideband part only in the CSI of the subconfiguration with the highest rank indicator. This may be applicable if the rank indicator is different for some or all of the at least two subconfigurations.

[0042] Some or all of the multiple subconfigurations may have the same number of antenna ports. More generally, the subconfigurations may share other elements / parameters in the CSI report configuration, such as the antenna port layout in the vertical dimension (N1), the antenna port layout in the horizontal dimension (N2), the number of antenna panels on the gNB side (Ng), etc. Some or all of the multiple subconfigurations may correspond to different power control offset values. Some or all of the multiple subconfigurations may not include a parameter, such as a port subset indication.

[0043] Some or all of the multiple subconfigurations may correspond to or enable type 2 spatial domain adaptation and / or power domain adaptation.Alternatively or additionally, some or all of the multiple subconfigurations may correspond to or enable type 1 spatial domain adaptation.

[0044] exist Figure 1 In the example, the CSI report configuration includes a group of subconfigurations, where the group contains at least subconfiguration #1 with an index of 1 and subconfiguration #2 with an index of 2 (in the example, the index indicates the position in the group). Subconfiguration #1 is associated with CSI-RS resource #1 and power control offset #1. Subconfiguration #2 is associated with CSI-RS resource #1 and power control offset #2. The CSI of subconfiguration #1 and subconfiguration #2 are associated to the same CSI-RS resource (i.e., CSI-RS resource #1) by configuration. PMI is reported in the CSI of the subconfiguration with the lowest index (i.e., subconfiguration #1), and PMI is omitted from the CSI of another subconfiguration (i.e., subconfiguration #2).

[0045] exist Figure 2 In the CSI report configuration, the CSI report configuration includes a group of subconfigurations, wherein the group includes at least subconfiguration #1 and subconfiguration #2. Subconfiguration #1 is associated with CSI-RS resource #1 and power control offset #1. Subconfiguration #2 is associated with CSI-RS resource #1 and power control offset #2. The CSI of subconfiguration #1 and subconfiguration #2 are associated to the same CSI-RS resource (i.e., CSI-RS resource #1) by configuration. The rank of subconfiguration #2 is greater than the rank of subconfiguration #1. PMI is reported only in the CSI of the subconfiguration with a larger rank (i.e., subconfiguration #2). PMI is omitted from the CSI of another subconfiguration with a lower rank, i.e., subconfiguration #1.

[0046] exist Figure 3, a CSI reporting configuration comprises a set of subconfigurations, wherein the set comprises at least subconfiguration #1 and subconfiguration #2. Subconfiguration #1 is associated to CSI-RS resource #1 and CSI-RS resource #2. Subconfiguration #2 is associated to CSI-RS resource #3 and CSI-RS resource #4. The CSI of subconfiguration #1 and subconfiguration #2 are associated to the same CSI-RS resource (e.g., resource #1 and resource #3, respectively) through CRI selection; it can be assumed here that the association to the same CSI-RS resource is performed because the selected CRI (e.g., CRI=1) is the same for the CSI of the two subconfigurations. The rank indicators of the two subconfigurations are the same. The PMI is reported in the CSI of the first subconfiguration (i.e., subconfiguration #1), and the PMI is omitted from the CSI of the other subconfiguration (i.e., subconfiguration #2).

[0047] exist Figure 4 In the CSI report configuration, the CSI report configuration includes a group of subconfigurations, where the group includes at least subconfiguration #1 and subconfiguration #2. Subconfiguration #1 is associated with CSI-RS resource #1 and power control offset #1. Subconfiguration #2 is associated with CSI-RS resource #1 and power control offset #2. The CSI of subconfiguration #1 and subconfiguration #2 are associated to the same CSI-RS resource by configuration. The rank of subconfiguration #2 is greater than the rank of subconfiguration #1. WB PMI is reported only in the CSI of the subconfiguration with a larger rank (i.e., subconfiguration #2). WBP MI is omitted from the CSI of the subconfiguration with a lower rank, i.e., subconfiguration #1. WB and SB refer to wideband and subband, respectively.

[0048] In an embodiment, the channel state information of at least one first subconfiguration and the channel state information of at least one second subconfiguration can be determined to be associated with the same channel state information reference signal resource, which is based on at least one of the following: the channel state information reference signal resource for at least one first subconfiguration is linked to the channel state information reference signal resource for at least one second subconfiguration, or the channel state information reference signal resource for at least one first subconfiguration is linked to the channel state information reference signal resource for at least one second subconfiguration, and at least one of the channel state information for at least one first subconfiguration and the channel state information for at least one second subconfiguration or the selected channel state information reference signal resource indicator points to the channel state information reference signal resource for at least one first subconfiguration and the channel state information reference signal resource for at least one second subconfiguration respectively, or the channel state information reference signal resource indicator selected for the channel state information of at least one first subconfiguration is the same as the channel state information reference signal resource indicator selected for the channel state information of at least one second subconfiguration.

[0049] In an example, if a sub-configuration is associated to two or more CSI-RS resources, it is expected that the UE 10 will select one of these resources. The CRI will then indicate the selected resource, and it will be determined (e.g., by the UE 10) that the channel state information of at least one first sub-configuration and the channel state information of at least one second sub-configuration are associated to the same channel state information reference signal resource.

[0050] In an embodiment, at least one first sub-configuration and at least one second sub-configuration share the same parameters, where example parameters are the number of antenna ports, N1, N2, etc.

[0051] In an embodiment, at least one first sub-configuration and at least one second sub-configuration correspond to same domain adaptation, where example same domain adaptation includes spatial adaptation, or power adaptation, or type 2 spatial domain adaptation, etc.

[0052] In an embodiment, at least one first sub-configuration and at least one second sub-configuration do not include or include a certain parameter, wherein an example parameter in this embodiment is a port subset indicator.

[0053] In an embodiment, at least one first subconfiguration and at least one second subconfiguration have a specific configuration element or belong to a group of subconfigurations, wherein the specific element is an element indication that the operation(s) described herein may be applied to the corresponding subconfiguration.

[0054] In some embodiments, at least one indicator in the channel state information of the sub-configuration may be one or more of the following: PMI, wideband PMI, layer indicator, channel quality indicator, CSI-RS resource indicator.

[0055] For reporting quantity including CRI, if the subconfiguration includes more than one CSI-RS resource or is associated with more than one CSI-RS resource (for channel measurement), then the subconfiguration requires CRI selection and thus reporting. Otherwise, if the subconfiguration includes a single CSI-RS resource or is associated with a single CSI-RS resource, then the subconfiguration does not require CRI reporting.

[0056] In some embodiments, in a CSI reporting configuration, each of a plurality of subconfigurations may correspond to or be associated with, or be replaced by, at least one of: 1) spatial (adaptive) modes - different modes have different subsets / sets (or numbers) of active / silent spatial elements (such as antenna ports, antenna elements, etc.), or 2) antenna port subsets, or 3) power levels, such as corresponding to power control offsets, or 4) CSI-RS resources, or 5) CSI-RS resource sets or groups, or 6) codebook configurations, or 7) frequency reporting configurations or subband configurations.

[0057] Advantages and technical effects of the examples described herein include reduced UL / CSI overhead, primarily in terms of PMI reporting (but also LI reporting, CQI reporting, CRI reporting), and reduced CSI computation complexity under certain conditions, for certain sub-configurations and under certain conditions. These reductions can be achieved without performance degradation in at least some cases, and with little, if any, performance impact in other cases.

[0058] Figure 5 A block diagram of one possible and non-limiting example of a cellular network 1 connected to a user equipment (UE) 10 is shown. Figure 5 A number of network elements are shown in the cellular network of FIG: a base station 70 ; and a core network 90 .

[0059] exist Figure 5 , a user equipment (UE) 10 performs radio communication with a base station 70 of a cellular network 1 via a radio link 11. The UE 10 is a wireless communication device, such as a mobile device, configured to access a cellular network. The UE 10 is shown as having one or more antennas 28. The ellipsis 2 indicates that there may be multiple UEs 10 performing radio communication with the base station 70 via a radio link. The UE 10 includes one or more processors 13, one or more memories 15, and other circuit systems 16. The other circuit systems 16 include one or more receivers ((multiple) Rx) 17 and one or more transmitters ((multiple) Tx) 18. The program 12 is used to cause the UE 10 to perform the operations described herein. For the UE 10, the other circuit systems 16 may include circuit systems such as for user interface elements (not shown) such as a display.

[0060] As a network element of the cellular network 1, the base station 70 provides the UE 10 with access to the cellular network 1 and the data network 91 via the core network 90 (e.g., via the user plane function (UPF) of the core network 90). The base station 70 is shown as having one or more antennas 58. In general, the base station 70 is referred to as a RAN node 70 herein. One example of a RAN node 70 is a gNB. However, there are many other examples of RAN nodes, including eNBs (LTE base stations) or transmission reception points (TRPs). The base station 70 includes one or more processors 73, one or more memories 75, and other circuit systems 76. The other circuit systems 76 include one or more receivers ((multiple) Rx) 77 and one or more transmitters ((multiple) Tx) 78. The program 72 is used to enable the base station 70 to perform the operations described herein.

[0061] It should be noted that base station 70 may alternatively be implemented via other wireless technologies such as Wi-Fi, a wireless network protocol used by devices to communicate without a direct cable connection. In the case of Wi-Fi, link 11 may be characterized as a wireless link.

[0062] Two or more base stations 70 communicate using, for example, link(s) 79. Link(s) 79 may be wired or wireless or both and may implement, for example, an Xn interface for fifth generation (5G), an X2 interface for LTE, or other suitable interfaces for other standards.

[0063] The cellular network 1 may include a core network 90, as one or more elements shown in the third figure, which may include core network functions and provide a connection to a data network 91 via one or more links 81, such as a telephone network and / or a data communication network (e.g., the Internet). The core network 90 includes one or more processors 93, one or more memories 95, and other circuit systems 96. The other circuit systems 96 include one or more receivers ((multiple) Rx) 97 and one or more transmitters ((multiple) Tx) 98. The program 92 is used to enable the core network 90 to perform the operations described herein.

[0064] The core network 90 may be a 5GC (5G core network). The core network 90 may implement or include a plurality of network functions ((multiple) NFs) 99, and the program 92 may include one or more NFs 99. The 5G core network may use hardware such as memory and processors and a virtualization layer. It may be a single independent computing system, a distributed computing system, or a cloud computing system. The NF 99 as a network element of the core network may be a container or a virtual machine running on the hardware of the (multiple) computing systems constituting the core network 90.

[0065] The core network functions for 5G may include access and mobility management functions provided by network functions such as access and mobility management functions (AMFs), session management functions provided by network functions such as session management functions (SMFs). The core network functions for access and mobility management in LTE networks may be provided by MME (Mobility Management Entity) and / or SGW (Serving Gateway) functions, which are used to route data to the data network. Many others are possible, such as Figure 5As shown in the example in: AMF; SMF; MME; SGW; Gateway Mobile Location Center (GMLC); Location Management Function (LMF); Unified Data Management (UDM); Unified Data Repository (UDR); Network Repository Function (NRF); and / or Evolved Serving Mobile Location Center (E-SMLC). These are merely exemplary core network functions that may be provided by the core network 90, and it should be noted that both 5G and LTE core network functions may be provided by the core network 90. ​​A radio access network (RAN) node 70 is coupled to the core network 90 via a backhaul link 31. The RAN node 70 and the core network 90 may include an NG interface for 5G, or an S1 interface for LTE, or other suitable interfaces for other radio access technologies for communicating via the backhaul link 31.

[0066] In the data network 91, there is a computer-readable medium 94. The computer-readable medium 94 contains instructions that, when downloaded and installed into the memory 15, 75 or 95 of the corresponding UE 10, base station 70 and / or (multiple) core network element 90, and executed by (multiple) processors 13, 73 or 93, cause the corresponding device to perform the corresponding actions described herein. The computer-readable medium 94 may be implemented in other forms, such as via an optical disk or a memory stick.

[0067] Programs 12, 72 and 92 include instructions stored by corresponding one or more memories 15, 75 or 95. These instructions, when executed by corresponding one or more processors 13, 73 or 93, cause corresponding devices 10, 70 or 90 to perform the operations described herein. Computer-readable memory 15, 75 or 95 may be any type suitable for the local technical environment and may be implemented using any suitable data storage technology (such as semiconductor-based storage devices, flash memory, firmware, magnetic memory devices and systems, optical storage devices and systems, fixed memory and removable memory). Computer-readable memory 15, 75 and 95 may be a component for performing storage functions. As a non-limiting example, processors 13, 73 and 93 may be any type suitable for the local technical environment and may include one or more of a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP) and a processor based on a multi-core processor architecture. Processors 13, 73 and 93 may be components for causing their corresponding devices to perform functions such as those described herein.

[0068] Receivers 17, 77 and 97 and transmitters 18, 78 and 98 may implement a wired or wireless interface. Receivers and transmitters may be combined together as a transceiver.

[0069] Figure 6An example apparatus 600 is shown that can be implemented with hardware configured to implement the examples described herein. The apparatus 600 includes at least one processor 602 (e.g., an FPGA and / or a CPU), one or more memories 604 including computer program code 605, the computer program code 605 having instructions to perform the methods described herein, wherein the at least one memory 604 and the computer program code 605 are configured to, together with the at least one processor 602, cause the apparatus 600 to implement circuit systems, processes, components, modules, or functions (implemented with a control module 606) to implement the examples described herein, including the enhanced CSI framework. The memory 604 can be a non-transitory memory, a transient memory, a volatile memory (e.g., a RAM), or a non-volatile memory (e.g., a ROM). The CSI report 630 of the control module implements aspects described herein related to the enhanced CSI reporting framework.

[0070] The device 600 includes a display and / or I / O interface 608, including user interface (UI) circuits and components, which can be used to display aspects or states of the methods described herein (e.g., while one of the methods is being performed or at a subsequent time), or to receive input from a user, such as using a keyboard, camera, touch screen, touch area, microphone, biometrics, one or more sensors, etc. The device 600 includes one or more communications, such as network (N / W) interface ((s) I / F) 610. The (s) communication I / F 610 can be wired and / or wireless and communicate over the Internet / (s) other network via any communication technology, including via one or more links 624. The (s) link 624 can be Figure 5 (multiple) links 11 and / or 79 and / or 31 and / or 81. Figure 5 The link(s) 11 and / or 79 and / or 31 and / or 81 in the embodiment may also be implemented using the transceiver(s) 616 and the corresponding wireless link(s) 626. The communication I / F(s) 610 may include one or more transmitters or one or more receivers.

[0071] The transceiver 616 includes one or more transmitters 618 and one or more receivers 620. The transceiver 616 and / or the communication I / F(s) 610 may include standard well-known components such as amplifiers, filters, frequency converters, (de)modulators and encoder / decoder circuitry, and one or more antennas, such as antenna 614 for communicating over a wireless link 626.

[0072] The control module 606 of the device 600 includes one or both of the components 606-1 and / or 606-2 that can be implemented in a variety of ways. The control module 606 can be implemented in hardware as the control module 606-1, such as being implemented as part of one or more processors 602. The control module 606-1 can also be implemented as an integrated circuit or implemented by other hardware such as a programmable gate array. In another example, the control module 606 can be implemented as a control module 606-2, implemented as a computer program code (with corresponding instructions) 605 and executed by one or more processors 602. For example, one or more memories 604 store instructions that, when executed by one or more processors 602, cause the device 600 to perform one or more operations described herein. In addition, one or more processors 602, one or more memories 604, and example algorithms (e.g., flow charts and / or signaling diagrams) encoded as instructions, programs, or codes are components for performing the operations described herein.

[0073] The device 600 implementing the function of the control 606 may be a UE 10, a base station 70 (e.g., a gNB 70), or a core network 90 including any network function 99, which may be implemented by a network entity. Therefore, the processor 602 may correspond to (multiple) processors 13, (multiple) processors 73, and / or (multiple) processors 93, the memory 604 may correspond to one or more memories 15, one or more memories 75, and / or one or more memories 95, the computer program code 605 may correspond to the program 12, the program 72, or the program 92, the (multiple) communication I / F 610 and / or the transceiver 616 may correspond to other circuit systems 16, other circuit systems 76, or other circuit systems 96, and the antenna 614 may correspond to the antenna 28 or the antenna 58.

[0074] Alternatively, the apparatus 600 and its elements may not correspond to the UE 10, base station 70, or core network and their respective elements, as the apparatus 600 may be part of a Self-Organizing / Optimizing Network (SON) node or other node, such as a node in a cloud.

[0075] The apparatus 600 may also be distributed throughout the network (eg, 91 ), including within and between the apparatus 600 and any network elements (such as the core network 90 and / or base stations 70 and / or UEs 10 ).

[0076] like Figure 6As shown in , interface 612 enables data communication and signaling between various items of device 600. For example, interface 612 can be one or more buses, such as address, data or control buses, and can include any interconnection mechanism, such as a series of lines on a motherboard or integrated circuit, optical fiber or other optical communication equipment, etc. The computer program code (e.g., instructions) 605 including control 606 can include object-oriented software configured to pass data or messages between objects within computer program code 605. Device 600 need not include every feature mentioned, or may also include other features. The various components of device 600 may reside at least partially in a common housing 628, or subsets of the various components of device 600 may be at least partially located in different housings, which may include housing 628.

[0077] Figure 7 Schematic representations of non-volatile storage media 700a (e.g., a computer / compact disk (CD) or digital versatile disk (DVD)) and 700b (e.g., a universal serial bus (USB) memory stick) and 700c (e.g., cloud storage for downloading instructions and / or parameters 702 or receiving instructions and / or parameters 702 sent by email) storing instructions and / or parameters 702 are shown, which, when executed by a processor, allow the processor to perform one or more steps of the method described herein.

[0078] Figure 8 An example method 800 based on the example embodiments described herein. At 810, the method includes determining whether channel state information of at least one first sub-configuration in a channel state information reporting configuration and channel state information of at least one second sub-configuration in a channel state information reporting configuration are associated to a channel state information reference signal resource. At 820, the method includes, in response to the channel state information of at least one first sub-configuration and the channel state information of at least one second sub-configuration being associated to the channel state information reference signal resource, determining to send at least one indicator in the channel state information of at least one first sub-configuration. At 830, the method includes, in response to the channel state information of at least one first sub-configuration and the channel state information of at least one second sub-configuration being associated to the channel state information reference signal resource, determining not to send at least one indicator in the channel state information of at least one second sub-configuration. Method 800 may be performed by UE 10 or apparatus 600.

[0079] Fig. 9An example method 900 based on the example embodiments described herein. At 910, the method includes sending a channel state information reporting configuration including at least one first subconfiguration and at least one second subconfiguration to a user equipment. At 920, the method includes receiving at least one indicator in the channel state information of at least one first subconfiguration in response to the channel state information of at least one first subconfiguration and the channel state information of at least one second subconfiguration being associated to a channel state information reference signal resource. At 930, the method includes, wherein in response to the channel state information of at least one first subconfiguration and the channel state information of at least one second subconfiguration being associated to a channel state information reference signal resource, at least one indicator in the channel state information of at least one second subconfiguration is not received. Method 900 may be performed by a network node 70, a network function 99 of a core network 90, or an apparatus 600.

[0080] The following examples are provided and described herein.

[0081] Example 1. A device, comprising: at least one processor; and at least one memory storing instructions, which, when executed by the at least one processor, causes the device to at least: determine whether channel state information of at least one first sub-configuration in a channel state information reporting configuration and channel state information of at least one second sub-configuration in the channel state information reporting configuration are associated with a channel state information reference signal resource; in response to the channel state information of the at least one first sub-configuration and the channel state information of the at least one second sub-configuration being associated with the channel state information reference signal resource, determine to send at least one indicator in the channel state information of the at least one first sub-configuration; and in response to the channel state information of at least one first sub-configuration and the channel state information of at least one second sub-configuration being associated with the channel state information reference signal resource, determine not to send at least one indicator in the channel state information of at least one second sub-configuration.

[0082] Example 2. An apparatus according to Example 1, wherein: at least one indicator in the channel state information of at least one first sub-configuration includes a precoding matrix indicator; and at least one indicator in the channel state information of at least one second sub-configuration includes a precoding matrix indicator.

[0083] Example 3. An apparatus according to any one of Examples 1 to 2, wherein: at least one indicator in the channel state information of at least one first sub-configuration includes a layer indicator; and at least one indicator in the channel state information of at least one second sub-configuration includes a layer indicator.

[0084] Example 4. An apparatus according to any one of Examples 1 to 3, wherein the channel state information of the at least one first sub-configuration and the channel state information of the at least one second sub-configuration are associated to a channel state information reference signal resource based on a channel state information reporting configuration.

[0085] Example 5. An apparatus according to any one of Examples 1 to 4, wherein the instruction, when executed by the at least one processor, causes the apparatus to at least: select at least one channel state information reference signal resource indicator; and based on the selected at least one channel state information reference signal resource indicator, determine channel state information of at least one first sub-configuration and channel state information of at least one second sub-configuration to be associated with the channel state information reference signal resource.

[0086] Example 6. An apparatus according to any one of Examples 1 to 5, wherein the instruction, when executed by the at least one processor, causes the apparatus to determine channel state information of at least one first subconfiguration and channel state information of at least one second subconfiguration to be associated with a channel state information reference signal resource in response to at least one of the following items: the channel state information reference signal resource for at least one first subconfiguration is linked to the channel state information reference signal resource for at least one second subconfiguration, or the channel state information reference signal resource for at least one first subconfiguration is linked to the channel state information reference signal resource for at least one second subconfiguration, wherein at least one or selected channel state information reference signal resource indicator for the channel state information for at least one first subconfiguration points to the channel state information reference signal resource for at least one first subconfiguration, and at least one or selected channel state information reference signal resource indicator for the channel state information for at least one second subconfiguration points to the channel state information reference signal resource for at least one second subconfiguration, or the selected channel state information reference signal resource indicator for the channel state information of at least one first subconfiguration is the same as the selected channel state information reference signal resource indicator for the channel state information of at least one second subconfiguration.

[0087] Example 7. An apparatus according to any one of Examples 1 to 6, wherein the instruction, when executed by the at least one processor, causes the apparatus to at least: determine to send at least one indicator in the channel state information of the at least one first subconfiguration in response to the index of the at least one first subconfiguration being higher or lower than the index of the at least one second subconfiguration; and determine not to send at least one indicator in the channel state information of the at least one second subconfiguration in response to the index of the at least one second subconfiguration being lower or higher than the index of the at least one first subconfiguration.

[0088] Example 8. An apparatus according to Example 7, wherein the index of the at least one first subconfiguration and the index of the at least one second subconfiguration correspond to respective positions of the at least one first subconfiguration and the at least one second subconfiguration within the channel state information reporting configuration.

[0089] Example 9. An apparatus according to any one of Examples 1 to 8, wherein the instruction, when executed by the at least one processor, causes the apparatus to at least: determine to send at least one indicator in the channel state information of the at least one first subconfiguration in response to the rank indicator of the at least one first subconfiguration being higher than the rank indicator of the at least one second subconfiguration; and determine not to send at least one indicator in the channel state information of the at least one second subconfiguration in response to the rank indicator of the at least one first subconfiguration being higher than the rank indicator of the at least one second subconfiguration.

[0090] Example 10. An apparatus according to any one of Examples 1 to 9, wherein: at least one indicator in the channel state information of at least one first sub-configuration includes a wideband precoding matrix indicator; and at least one indicator in the channel state information of at least one second sub-configuration includes a wideband precoding matrix indicator.

[0091] Example 11. An apparatus according to Example 10, wherein the rank indicator of the at least one first subconfiguration is different from the rank indicator of the at least one second subconfiguration.

[0092] Example 12. An apparatus according to any one of Examples 1 to 11, wherein the instruction, when executed by the at least one processor, causes the apparatus to at least: send the channel state information of the at least one first sub-configuration and the channel state information of the at least one second sub-configuration within a channel state information report based on the channel state information report configuration.

[0093] Example 13. An apparatus according to any one of Examples 1 to 12, wherein one or more of the following apply to the at least one first subconfiguration and the at least one second subconfiguration: the at least one first subconfiguration and the at least one second subconfiguration share the same parameters, or the at least one first subconfiguration and the at least one second subconfiguration correspond to the same domain adaptation, or at least one first subconfiguration and at least one second subconfiguration do not contain parameters, or at least one first subconfiguration and at least one second subconfiguration have specific configuration elements or belong to a group of subconfigurations.

[0094] Example 14. An apparatus according to any one of Examples 1 to 13, wherein the at least one first subconfiguration includes a first plurality of subconfigurations, or the at least one second subconfiguration includes a second plurality of subconfigurations.

[0095] Example 15. An apparatus according to Example 14, wherein the instruction, when executed by the at least one processor, causes the apparatus to at least: determine whether the channel state information of at least one subconfiguration in the first plurality of subconfigurations and the channel state information of at least one subconfiguration in the second plurality of subconfigurations are associated with the channel state information reference signal resource; and perform at least one of the following: in response to the channel state information of at least one subconfiguration in the first plurality of subconfigurations and the channel state information of at least one subconfiguration in the second plurality of subconfigurations being associated with the channel state information reference signal resource, determine at least one indicator in the channel state information of the corresponding at least one subconfiguration in the first plurality of subconfigurations, and determine not to send multiple corresponding indicators in the channel state information of the second plurality of subconfigurations, or in response to the channel state information of at least one subconfiguration in the first plurality of subconfigurations and the channel state information of at least one subconfiguration in the second plurality of subconfigurations being associated with the channel state information reference signal resource, determine to send multiple corresponding indicators in the channel state information of the first plurality of subconfigurations, and not to send at least one indicator in the channel state information of the corresponding at least one subconfiguration in the second plurality of subconfigurations.

[0096] Example 16. An apparatus according to any one of Examples 1 to 15, wherein the instruction, when executed by the at least one processor, causes the apparatus to at least: determine to send the at least one indicator in the channel state information of the at least one first subconfiguration in response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to the same or linked channel state information reference signal resource; and determine not to send the indicator in the channel state information of the at least one second subconfiguration in response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to the same or linked channel state information reference signal resource.

[0097] Example 17. An apparatus according to any one of Examples 1 to 16, wherein the rank indicator of the at least one first subconfiguration is the same as the rank indicator of the at least one second subconfiguration.

[0098] Example 18. A device comprising: at least one processor; and at least one memory storing instructions, which, when executed by the at least one processor, causes the device to at least: send a channel state information report configuration comprising at least one first subconfiguration and at least one second subconfiguration to a user equipment; in response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to a channel state information reference signal resource, receive at least one indicator in the channel state information of the at least one first subconfiguration; and wherein in response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to the channel state information reference signal resource, at least one indicator in the channel state information of the at least one second subconfiguration is not received.

[0099] Example 19. An apparatus according to Example 18, wherein: at least one indicator in the channel state information of at least one first sub-configuration includes a precoding matrix indicator; and at least one indicator in the channel state information of at least one second sub-configuration includes a precoding matrix indicator.

[0100] Example 20. An apparatus according to any one of Examples 18 to 19, wherein: at least one indicator in the channel state information of at least one first sub-configuration includes a layer indicator; and at least one indicator in the channel state information of at least one second sub-configuration includes a layer indicator.

[0101] Example 21. An apparatus according to any one of Examples 18 to 20, wherein the channel state information of the at least one first sub-configuration and the channel state information of the at least one second sub-configuration are associated to a channel state information reference signal resource based on a channel state information reporting configuration.

[0102] Example 22. An apparatus according to any one of Examples 18 to 21, wherein the channel state information of the at least one first sub-configuration and the channel state information of the at least one second sub-configuration are associated to a channel state information reference signal resource based on at least one selected channel state information reference signal resource indicator.

[0103] Example 23. An apparatus according to any one of Examples 18 to 22, wherein the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration are associated to a channel state information reference signal resource based on at least one of the following: the channel state information reference signal resource for the at least one first subconfiguration is linked to the channel state information reference signal resource for the at least one second subconfiguration, or the channel state information reference signal resource for at least one first subconfiguration is linked to the channel state information reference signal resource for at least one second subconfiguration, wherein at least one or selected channel state information reference signal resource indicator for the channel state information for at least one first subconfiguration points to the channel state information reference signal resource for at least one first subconfiguration, and at least one or selected channel state information reference signal resource indicator for the channel state information for at least one second subconfiguration points to the channel state information reference signal resource for at least one second subconfiguration, or the selected channel state information reference signal resource indicator for the channel state information of at least one first subconfiguration is the same as the selected channel state information reference signal resource indicator for the channel state information of at least one second subconfiguration.

[0104] Example 24. An apparatus according to any one of Examples 18 to 23, wherein the instruction, when executed by the at least one processor, causes the apparatus to at least: receive at least one indicator in the channel state information of the at least one first subconfiguration in response to the index of the at least one first subconfiguration being higher or lower than the index of the at least one second subconfiguration; wherein in response to the index of the at least one second subconfiguration being lower or higher than the index of the at least one first subconfiguration, the at least one indicator in the channel state information of the at least one second subconfiguration is not received.

[0105] Example 25. An apparatus according to Example 24, wherein the index of the at least one first subconfiguration and the index of the at least one second subconfiguration correspond to respective positions of the at least one first subconfiguration and the at least one second subconfiguration within the channel state information reporting configuration.

[0106] Example 26. An apparatus according to any one of Examples 18 to 25, wherein the instruction, when executed by the at least one processor, causes the apparatus to at least: receive at least one indicator in the channel state information of the at least one first subconfiguration in response to the rank indicator of the at least one first subconfiguration being higher than the rank indicator of the at least one second subconfiguration; wherein in response to the rank indicator of the at least one first subconfiguration being higher than the rank indicator of the at least one second subconfiguration, the at least one indicator in the channel state information of the at least one second subconfiguration is not received.

[0107] Example 27. An apparatus according to any one of Examples 18 to 26, wherein: at least one indicator in the channel state information of at least one first sub-configuration includes a wideband precoding matrix indicator; and at least one indicator in the channel state information of at least one second sub-configuration includes a wideband precoding matrix indicator.

[0108] Example 28. An apparatus according to Example 27, wherein the rank indicator of the at least one first subconfiguration is different from the rank indicator of the at least one second subconfiguration.

[0109] Example 29. An apparatus according to any one of Examples 18 to 28, wherein the instruction, when executed by the at least one processor, causes the apparatus to at least: receive channel state information of the at least one first sub-configuration and channel state information of the at least one second sub-configuration within a channel state information report based on the channel state information report configuration.

[0110] Example 30. An apparatus according to any one of Examples 18 to 29, wherein one or more of the following applies to the at least one first subconfiguration and the at least one second subconfiguration: the at least one first subconfiguration and the at least one second subconfiguration share the same parameters, or the at least one first subconfiguration and the at least one second subconfiguration correspond to the same domain adaptation, or at least one first subconfiguration and at least one second subconfiguration do not include parameters, or at least one first subconfiguration and at least one second subconfiguration have specific configuration elements or belong to a group of subconfigurations.

[0111] Example 31. An apparatus according to any one of Examples 18 to 30, wherein the at least one first subconfiguration includes a first plurality of subconfigurations, or the at least one second subconfiguration includes a second plurality of subconfigurations.

[0112] Example 32. An apparatus according to Example 31, wherein the instruction, when executed by the at least one processor, causes the apparatus to perform at least one of the following items: in response to channel state information of at least one subconfiguration in a first plurality of subconfigurations and channel state information of at least one subconfiguration in a second plurality of subconfigurations being associated to a channel state information reference signal resource, receiving at least one indicator in the channel state information of a corresponding at least one subconfiguration in the first plurality of subconfigurations, wherein multiple corresponding indicators in the channel state information of the second plurality of subconfigurations are not received, or in response to channel state information of at least one subconfiguration in the first plurality of subconfigurations and channel state information of at least one subconfiguration in the second plurality of subconfigurations being associated to the channel state information reference signal resource, receiving multiple corresponding indicators in the channel state information of the first plurality of subconfigurations, wherein at least one indicator in the channel state information of a corresponding at least one subconfiguration in the second plurality of subconfigurations is not received.

[0113] Example 33. An apparatus according to any one of Examples 18 to 32, wherein the instruction, when executed by the at least one processor, causes the apparatus to at least: receive at least one indicator in the channel state information of the at least one first subconfiguration in response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to the same or linked channel state information reference signal resource; wherein in response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to the same or linked channel state information reference signal resource, at least one indicator in the channel state information of the at least one second subconfiguration is not received.

[0114] Example 34. An apparatus according to any one of Examples 18 to 33, wherein the rank indicator of the at least one first subconfiguration is the same as the rank indicator of the at least one second subconfiguration.

[0115] Example 35. An apparatus comprising: a component for determining whether channel state information of at least one first sub-configuration in a channel state information reporting configuration and channel state information of at least one second sub-configuration in the channel state information reporting configuration are associated with a channel state information reference signal resource; a component for determining to send at least one indicator in the channel state information of the at least one first sub-configuration in response to the channel state information of the at least one first sub-configuration and the channel state information of the at least one second sub-configuration being associated with the channel state information reference signal resource; and a component for determining not to send at least one indicator in the channel state information of at least one second sub-configuration in response to the channel state information of the at least one first sub-configuration and the channel state information of the at least one second sub-configuration being associated with the channel state information reference signal resource.

[0116] Example 36. An apparatus comprising: a component for sending a channel state information reporting configuration comprising at least one first subconfiguration and at least one second subconfiguration to a user equipment; a component for receiving at least one indicator in the channel state information of at least one first subconfiguration in response to the channel state information of at least one first subconfiguration and the channel state information of at least one second subconfiguration being associated to a channel state information reference signal resource; and wherein in response to the channel state information of at least one first subconfiguration and the channel state information of at least one second subconfiguration being associated to the channel state information reference signal resource, at least one indicator in the channel state information of at least one second subconfiguration is not received.

[0117] Example 37. A machine-readable, non-volatile program storage device, tangibly comprising a program of machine-executable instructions for performing operations, the operations comprising: determining whether channel state information of at least one first sub-configuration in a channel state information reporting configuration and channel state information of at least one second sub-configuration in a channel state information reporting configuration are associated with a channel state information reference signal resource; in response to the channel state information of at least one first sub-configuration and the channel state information of at least one second sub-configuration being associated with the channel state information reference signal resource, determining to send at least one indicator in the channel state information of at least one first sub-configuration; and in response to the channel state information of at least one first sub-configuration and the channel state information of at least one second sub-configuration being associated with the channel state information reference signal resource, determining not to send at least one indicator in the channel state information of at least one second sub-configuration.

[0118] Example 38. A machine-readable, non-volatile program storage device, tangibly containing a program of machine-executable instructions for performing operations, the operations comprising: sending a channel state information reporting configuration comprising at least one first subconfiguration and at least one second subconfiguration to a user device; in response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to a channel state information reference signal resource, receiving at least one indicator in the channel state information of the at least one first subconfiguration; and wherein in response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to the channel state information reference signal resource, at least one indicator in the channel state information of the at least one second subconfiguration is not received.

[0119] Example 39. A method includes: determining whether channel state information of at least one first sub-configuration in a channel state information reporting configuration and channel state information of at least one second sub-configuration in a channel state information reporting configuration are associated with a channel state information reference signal resource; in response to the channel state information of at least one first sub-configuration and the channel state information of at least one second sub-configuration being associated with the channel state information reference signal resource, determining to send at least one indicator in the channel state information of at least one first sub-configuration; and in response to the channel state information of at least one first sub-configuration and the channel state information of at least one second sub-configuration being associated with the channel state information reference signal resource, determining not to send at least one indicator in the channel state information of at least one second sub-configuration.

[0120] Example 40. A method according to Example 39, wherein: at least one indicator in the channel state information of at least one first sub-configuration includes a precoding matrix indicator; and at least one indicator in the channel state information of at least one second sub-configuration includes a precoding matrix indicator.

[0121] Example 41. A method according to any one of Examples 39 to 40, wherein: at least one indicator in the channel state information of at least one first sub-configuration includes a layer indicator; and at least one indicator in the channel state information of at least one second sub-configuration includes a layer indicator.

[0122] Example 42. A method according to any one of Examples 39 to 41, wherein the channel state information of the at least one first sub-configuration and the channel state information of the at least one second sub-configuration are associated to a channel state information reference signal resource based on a channel state information reporting configuration.

[0123] Example 43. The method according to any one of Examples 39 to 42 further includes: selecting at least one channel state information reference signal resource indicator; and based on the selected at least one channel state information reference signal resource indicator, determining the channel state information of at least one first sub-configuration and the channel state information of at least one second sub-configuration to be associated with the channel state information reference signal resource.

[0124] Example 44. The method according to any one of Examples 39 to 43 further includes determining channel state information of at least one first subconfiguration and channel state information of at least one second subconfiguration to be associated with a channel state information reference signal resource in response to at least one of the following: the channel state information reference signal resource for at least one first subconfiguration is linked to the channel state information reference signal resource for at least one second subconfiguration, or the channel state information reference signal resource for at least one first subconfiguration is linked to the channel state information reference signal resource for at least one second subconfiguration, wherein at least one or selected channel state information reference signal resource indicator for the channel state information for at least one first subconfiguration points to the channel state information reference signal resource for at least one first subconfiguration, and at least one or selected channel state information reference signal resource indicator for at least one second subconfiguration points to the channel state information reference signal resource for at least one second subconfiguration, or the selected channel state information reference signal resource indicator for the channel state information of at least one first subconfiguration is the same as the selected channel state information reference signal resource indicator for the channel state information of at least one second subconfiguration.

[0125] Example 45. The method according to any one of Examples 39 to 44 further includes: in response to an index of at least one first subconfiguration being higher or lower than an index of at least one second subconfiguration, determining to send at least one indicator in the channel state information of at least one first subconfiguration; and in response to an index of at least one second subconfiguration being lower or higher than an index of at least one first subconfiguration, determining not to send at least one indicator in the channel state information of at least one second subconfiguration.

[0126] Example 46. A method according to Example 45, wherein the index of the at least one first subconfiguration and the index of the at least one second subconfiguration correspond to the respective positions of the at least one first subconfiguration and the at least one second subconfiguration within the channel state information reporting configuration.

[0127] Example 47. The method according to any one of Examples 39 to 46 further includes: in response to the rank indicator of at least one first subconfiguration being higher than the rank indicator of at least one second subconfiguration, determining to send at least one indicator in the channel state information of at least one first subconfiguration; and in response to the rank indicator of at least one first subconfiguration being higher than the rank indicator of at least one second subconfiguration, determining not to send at least one indicator in the channel state information of at least one second subconfiguration.

[0128] Example 48. A method according to any one of Examples 39 to 47, wherein: at least one indicator in the channel state information of at least one first sub-configuration includes a wideband precoding matrix indicator; and at least one indicator in the channel state information of at least one second sub-configuration includes a wideband precoding matrix indicator.

[0129] Example 49. A method according to Example 48, wherein the rank indicator of the at least one first subconfiguration is different from the rank indicator of the at least one second subconfiguration.

[0130] Example 50. According to the method described in any one of Examples 39 to 49, the method also includes: based on the channel state information report configuration, sending channel state information of at least one first sub-configuration and channel state information of at least one second sub-configuration in the channel state information report.

[0131] Example 51. A method according to any one of Examples 39 to 50, wherein one or more of the following applies to the at least one first subconfiguration and the at least one second subconfiguration: the at least one first subconfiguration and the at least one second subconfiguration share the same parameters, or the at least one first subconfiguration and the at least one second subconfiguration correspond to the same domain adaptation, or at least one first subconfiguration and at least one second subconfiguration do not include parameters, or at least one first subconfiguration and at least one second subconfiguration have specific configuration elements or belong to a group of subconfigurations.

[0132] Example 52. A method according to any one of Examples 39 to 51, wherein the at least one first subconfiguration includes a first plurality of subconfigurations, or the at least one second subconfiguration includes a second plurality of subconfigurations.

[0133] Example 53. The method according to Example 52 further includes: determining whether the channel state information of at least one subconfiguration in the first multiple subconfigurations and the channel state information of at least one subconfiguration in the second multiple subconfigurations are associated with channel state information reference signal resources; and performing at least one of the following: in response to the channel state information of at least one subconfiguration in the first multiple subconfigurations and the channel state information of at least one subconfiguration in the second multiple subconfigurations being associated with channel state information reference signal resources, determining to send at least one indicator in the channel state information of the corresponding at least one subconfiguration in the first multiple subconfigurations, and determining not to send multiple corresponding indicators in the channel state information of the second multiple subconfigurations, or in response to the channel state information of at least one subconfiguration in the first multiple subconfigurations and the channel state information of at least one subconfiguration in the second multiple subconfigurations being associated with channel state information reference signal resources, determining to send multiple corresponding indicators in the channel state information of the first multiple subconfigurations, and determining not to send at least one indicator in the channel state information of the corresponding at least one subconfiguration in the second multiple subconfigurations.

[0134] Example 54. The method according to any one of Examples 39 to 53 further includes: in response to the channel state information of at least one first subconfiguration and the channel state information of at least one second subconfiguration being associated to the same or linked channel state information reference signal resource, determining to send at least one indicator in the channel state information of at least one first subconfiguration; and in response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to the same or linked channel state information reference signal resource, determining not to send an indicator in the channel state information of the at least one second subconfiguration.

[0135] Example 55. A method according to any one of Examples 39 to 54, wherein the rank indicator of the at least one first subconfiguration is the same as the rank indicator of the at least one second subconfiguration.

[0136] Example 56. A method comprises: sending a channel state information reporting configuration comprising at least one first subconfiguration and at least one second subconfiguration to a user equipment; in response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to a channel state information reference signal resource, receiving at least one indicator in the channel state information of the at least one first subconfiguration; and wherein in response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to the channel state information reference signal resource, at least one indicator in the channel state information of the at least one second subconfiguration is not received.

[0137] Example 57. A method according to Example 56, wherein: at least one indicator in the channel state information of at least one first sub-configuration includes a precoding matrix indicator; and at least one indicator in the channel state information of at least one second sub-configuration includes a precoding matrix indicator.

[0138] Example 58. A method according to any one of Examples 56 to 57, wherein: at least one indicator in the channel state information of at least one first sub-configuration includes a layer indicator; and at least one indicator in the channel state information of at least one second sub-configuration includes a layer indicator.

[0139] Example 59. A method according to any one of Examples 56 to 58, wherein the channel state information of the at least one first sub-configuration and the channel state information of the at least one second sub-configuration are associated to a channel state information reference signal resource based on a channel state information reporting configuration.

[0140] Example 60. A method according to any one of Examples 56 to 59, wherein the channel state information of the at least one first sub-configuration and the channel state information of the at least one second sub-configuration are associated to a channel state information reference signal resource based on at least one selected channel state information reference signal resource indicator.

[0141] Example 61. A method according to any one of Examples 56 to 60, wherein the channel state information of at least one first subconfiguration and the channel state information of at least one second subconfiguration are associated to a channel state information reference signal resource based on at least one of the following: the channel state information reference signal resource for at least one first subconfiguration is linked to the channel state information reference signal resource for at least one second subconfiguration, or the channel state information reference signal resource for at least one first subconfiguration is linked to the channel state information reference signal resource for at least one second subconfiguration, wherein at least one or selected channel state information reference signal resource indicator for the channel state information for at least one first subconfiguration points to the channel state information reference signal resource for at least one first subconfiguration, and at least one or selected channel state information reference signal resource indicator for the channel state information for at least one second subconfiguration points to the channel state information reference signal resource for at least one second subconfiguration, or the selected channel state information reference signal resource indicator for the channel state information of at least one first subconfiguration is the same as the selected channel state information reference signal resource indicator for the channel state information of at least one second subconfiguration.

[0142] Example 62. The method according to any one of Examples 56 to 61 further includes: in response to the index of at least one first subconfiguration being higher or lower than the index of at least one second subconfiguration, receiving at least one indicator in the channel state information of at least one first subconfiguration; wherein in response to the index of the at least one second subconfiguration being lower or higher than the index of the at least one first subconfiguration, the at least one indicator in the channel state information of the at least one second subconfiguration is not received.

[0143] Example 63. A method according to Example 62, wherein the index of the at least one first subconfiguration and the index of the at least one second subconfiguration correspond to the respective positions of the at least one first subconfiguration and the at least one second subconfiguration within the channel state information reporting configuration.

[0144] Example 64. A method according to any one of Examples 56 to 63, the method further comprising: in response to a rank indicator of at least one first subconfiguration being higher than a rank indicator of at least one second subconfiguration, receiving at least one indicator in the channel state information of at least one first subconfiguration; wherein in response to the rank indicator of the at least one first subconfiguration being higher than the rank indicator of the at least one second subconfiguration, the at least one indicator in the channel state information of the at least one second subconfiguration is not received.

[0145] Example 65. A method according to any one of Examples 56 to 64, wherein: at least one indicator in the channel state information of at least one first sub-configuration includes a wideband precoding matrix indicator; and at least one indicator in the channel state information of at least one second sub-configuration includes a wideband precoding matrix indicator.

[0146] Example 66. A method according to Example 65, wherein the rank indicator of the at least one first subconfiguration is different from the rank indicator of the at least one second subconfiguration.

[0147] Example 67. According to any one of the methods of Examples 56 to 66, the method also includes: based on the channel state information report configuration, receiving channel state information of at least one first sub-configuration and channel state information of at least one second sub-configuration in the channel state information report.

[0148] Example 68. A method according to any one of Examples 56 to 67, wherein one or more of the following applies to the at least one first subconfiguration and the at least one second subconfiguration: the at least one first subconfiguration and the at least one second subconfiguration share the same parameters, or the at least one first subconfiguration and the at least one second subconfiguration correspond to the same domain adaptation, or at least one first subconfiguration and at least one second subconfiguration do not include parameters, or at least one first subconfiguration and at least one second subconfiguration have specific configuration elements or belong to a group of subconfigurations.

[0149] Example 69. A method according to any one of Examples 56 to 68, wherein the at least one first subconfiguration includes a first plurality of subconfigurations, or the at least one second subconfiguration includes a second plurality of subconfigurations.

[0150] Example 70. The method according to Example 69 further includes performing at least one of the following: in response to channel state information of at least one subconfiguration in the first plurality of subconfigurations and channel state information of at least one subconfiguration in the second plurality of subconfigurations being associated to a channel state information reference signal resource, receiving at least one indicator in the channel state information of a corresponding at least one subconfiguration in the first plurality of subconfigurations, wherein multiple corresponding indicators in the channel state information of the second plurality of subconfigurations are not received, or in response to channel state information of at least one subconfiguration in the first plurality of subconfigurations and channel state information of at least one subconfiguration in the second plurality of subconfigurations being associated to the channel state information reference signal resource, receiving multiple corresponding indicators in the channel state information of the first plurality of subconfigurations, wherein at least one indicator in the channel state information of a corresponding at least one subconfiguration in the second plurality of subconfigurations is not received.

[0151] Example 71. The method according to any one of Examples 56 to 70 further includes: in response to the channel state information of at least one first subconfiguration and the channel state information of at least one second subconfiguration being associated with the same or linked channel state information reference signal resource, receiving at least one indicator in the channel state information of at least one first subconfiguration; wherein in response to the channel state information of at least one first subconfiguration and the channel state information of at least one second subconfiguration being associated with the same or linked channel state information reference signal resource, at least one indicator in the channel state information of the at least one second subconfiguration is not received.

[0152] Example 72. A method according to any one of Examples 56 to 71, wherein the rank indicator of the at least one first subconfiguration is the same as the rank indicator of the at least one second subconfiguration.

[0153] References to "computers," "processors," and the like should be understood to include not only computers having different architectures, such as single / multi-processor architectures and sequential or parallel architectures, but also special purpose circuits, such as field programmable gate arrays (FPGAs), application specific circuits (ASICs), signal processing devices, and other processing circuit systems. References to computer programs, instructions, code, and the like should be understood to cover software for a programmable processor or firmware, for example, the programmable content of a hardware device, whether instructions for a processor or configuration settings for a fixed function device, gate array, or programmable logic device, and the like.

[0154] The memory described herein can be implemented using any suitable data storage technology, such as semiconductor-based memory devices, flash memory, magnetic memory devices and systems, optical memory devices and systems, non-volatile memory, transient memory, fixed memory, and removable memory. The memory can include a database for storing data.

[0155] As used herein, the term "circuitry" may refer to the following: (a) hardware circuit implementations, such as implementations in analog and / or digital circuitry, and (b) combinations of circuitry and software (and / or firmware), such as, if applicable: (i) a combination of processors or (ii) portions of processors / software, including digital signal processors, software, and memory, which operate together to enable the device to perform various functions, and (c) circuits, such as a microprocessor or portion of a microprocessor that requires software or firmware (even if the software or firmware is not physically present) to operate. As another example, as used herein, the term "circuitry" would also cover implementations of only a processor (or multiple processors) or a portion of a processor and its (or their) accompanying software and / or firmware. For example, if applicable to the particular element, the term "circuitry" would also cover a baseband integrated circuit or an application processor integrated circuit for a mobile phone, or a similar integrated circuit in a server, a cellular network device, or another network device.

[0156] It should be understood that the foregoing description is illustrative only. Various alternatives and modifications may occur to those skilled in the art. For example, the features described in the various dependent claims may be combined with each other in any suitable combination. In addition, features from the different example embodiments described above may be selectively combined into new example embodiments. Therefore, this specification is intended to cover all such substitutions, modifications and variations that fall within the scope of the appended claims.

[0157] The following acronyms and abbreviations that may be found in the specification and / or the drawings are given below (abbreviations and acronyms may be appended to each other, or to other characters using, for example, dashes, hyphens, slashes or numbers, and may not be case sensitive):

[0158] 3GPP Third Generation Partnership Project

[0159] 4G Fourth Generation

[0160] 5G Fifth Generation

[0161] 5GC 5G Core Network

[0162] A-CSI Aperiodic Channel State Information

[0163] AAU Active Antenna Unit

[0164] AMF Access and Mobility Management Function

[0165] ASIC Application-Specific Integrated Circuit

[0166] BM Beam Management

[0167] BWP Bandwidth Part

[0168] CC Component Carrier

[0169] CD / Computer CD

[0170] CE Control Components

[0171] CPU Central Processing Unit

[0172] CRI CSI-RS resource indicator

[0173] CQI Channel Quality Indicator

[0174] CSI Channel State Information

[0175] CSI-RS Channel State Information Reference Signal

[0176] DCI Downlink Control Information

[0177] DL Downlink

[0178] DSP Digital Signal Processor

[0179] DVD Digital Versatile Disc

[0180] eNB Evolved Node B (e.g., LTE base station)

[0181] EPC Evolved Packet Core

[0182] E-SMLC Evolved Service Mobile Location Center

[0183] FPGA Field Programmable Gate Array

[0184] GMLC Gateway Mobile Location Center

[0185] gNB Next Generation Node B, a base station for 5G / NR, that is, a node that provides NR user plane and control plane protocol termination towards the UE and is connected to the 5GC via the NG interface

[0186] GSMA Global System for Mobile Communications Association

[0187] I / F Interface

[0188] I / O Input / Output

[0189] L1 Layer 1

[0190] LI layer indicator

[0191] LMF Location Management Function

[0192] LTE Long Term Evolution (4G)

[0193] MAC Media Access Control

[0194] MIMO Multiple Input Multiple Output

[0195] MME Mobility Management Entity

[0196] NF Network Function

[0197] NG New Generation

[0198] NG-RAN Next Generation Radio Access Network

[0199] nrofPortsNumber of ports NR New Radio NRF Network Repository Features N / W Network

[0200] NZP Non Zero Power OFDM Orthogonal Frequency Division Multiplexing OPEX Operating Expenses PMI Precoding matrix indicator PUSCH Physical Uplink Shared Channel RAM Random Access Memory RAN Radio Access Network RAN1 Radio Layer 1

[0201] RE Resource Element Rel Release

[0202] RI Rank Indicator ROM Read Only Memory RRC Radio Resource Control RS reference signal RSRP Reference Signal Received Power Rx Receiver or Receiver S1 Interface SB subband that connects eNB to EPC

[0203] SGW Service Gateway SMF session management functions SON self-organizing / optimizing network SP-CSI Semi-persistent Channel State Information TRP Transmission Reception Point TRS Tracking Reference Signal TS Technical Specifications

[0204] Tx Transmitter or Transmission

[0205] UDM Unified Data Management

[0206] UDR Unified Data Repository

[0207] UE User Equipment (e.g., wireless, typically mobile device)

[0208] UI User Interface

[0209] UL Uplink

[0210] UPF User Plane Function

[0211] USB Universal Serial Bus

[0212] WB Broadband

[0213] WID Work Item Description

[0214] Wi-Fi wireless networking protocol that allows devices to communicate without a direct cable connection

[0215] X2 Network interface between RAN nodes and between RAN and core network

[0216] Xn Network interface between NG-RAN nodes

[0217] XR Extended Reality or Cross Reality

Claims

1. A device for wireless communication, comprising: at least one processor; as well as at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to at least: determining whether channel state information of at least one first sub-configuration in a channel state information reporting configuration and channel state information of at least one second sub-configuration in the channel state information reporting configuration are associated with a channel state information reference signal resource; In response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to the channel state information reference signal resource, determining to send at least one indicator in the channel state information of the at least one first subconfiguration; as well as In response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated with the channel state information reference signal resource, it is determined not to send at least one indicator in the channel state information of the at least one second subconfiguration.

2. The device according to claim 1, wherein: The at least one indicator in the channel state information of the at least one first subconfiguration comprises a precoding matrix indicator; and The at least one indicator in the channel state information of the at least one second subconfiguration comprises a precoding matrix indicator.

3. The device according to claim 1, wherein: The at least one indicator in the channel state information of the at least one first subconfiguration comprises a layer indicator; and The at least one indicator in the channel state information of the at least one second subconfiguration comprises a layer indicator.

4. The apparatus according to claim 1, wherein the channel state information of the at least one first sub-configuration and the channel state information of the at least one second sub-configuration are associated to the channel state information reference signal resource based on the channel state information reporting configuration.

5. The apparatus of claim 1 , wherein the instructions, when executed by the at least one processor, cause the apparatus to at least: selecting at least one channel state information reference signal resource indicator; and Based on the selected at least one channel state information reference signal resource indicator, the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration to be associated to the channel state information reference signal resource are determined.

6. The apparatus of claim 1 , wherein the instructions, when executed by the at least one processor, cause the apparatus to determine the channel state information of the at least one first subconfiguration to be associated with the channel state information reference signal resource and the channel state information of the at least one second subconfiguration in response to at least one of the following: The channel state information reference signal resources for the at least one first subconfiguration are linked to the channel state information reference signal resources for the at least one second subconfiguration, or the channel state information reference signal resource for the at least one first subconfiguration is linked to the channel state information reference signal resource for the at least one second subconfiguration, wherein at least one or selected channel state information reference signal resource indicator for the channel state information for the at least one first subconfiguration points to the channel state information reference signal resource for the at least one first subconfiguration, and at least one or selected channel state information reference signal resource indicator for the channel state information for the at least one second subconfiguration points to the channel state information reference signal resource for the at least one second subconfiguration, or The selected channel state information reference signal resource indicator for the channel state information of the at least one first subconfiguration is the same as the selected channel state information reference signal resource indicator for the channel state information of the at least one second subconfiguration.

7. The apparatus of claim 1, wherein the instructions, when executed by the at least one processor, cause the apparatus to at least: In response to an index of the at least one first subconfiguration being higher or lower than an index of the at least one second subconfiguration, determining to send the at least one indicator in the channel state information of the at least one first subconfiguration; and In response to the index of the at least one second subconfiguration being lower or higher than the index of the at least one first subconfiguration, it is determined not to send the at least one indicator in the channel state information of the at least one second subconfiguration.

8. The apparatus according to claim 7, wherein the index of the at least one first subconfiguration and the index of the at least one second subconfiguration correspond to respective positions of the at least one first subconfiguration and the at least one second subconfiguration in the channel state information reporting configuration.

9. The apparatus of claim 1, wherein the instructions, when executed by the at least one processor, cause the apparatus to at least: In response to the rank indicator of the at least one first subconfiguration being higher than the rank indicator of the at least one second subconfiguration, determining to send the at least one indicator in the channel state information of the at least one first subconfiguration; and In response to the rank indicator of the at least one first subconfiguration being higher than the rank indicator of the at least one second subconfiguration, it is determined not to send the at least one indicator in the channel state information of the at least one second subconfiguration.

10. The device according to claim 1, wherein: The at least one indicator in the channel state information of the at least one first subconfiguration comprises a wideband precoding matrix indicator; as well as The at least one indicator in the channel state information of the at least one second subconfiguration comprises a wideband precoding matrix indicator. 11 . The apparatus of claim 10 , wherein the rank indicator of the at least one first subconfiguration is different from the rank indicator of the at least one second subconfiguration.

12. The apparatus of claim 1, wherein the instructions, when executed by the at least one processor, cause the apparatus to at least: Based on the channel state information reporting configuration, the channel state information of the at least one first sub-configuration and the channel state information of the at least one second sub-configuration are sent in a channel state information report.

13. The apparatus of claim 1, wherein one or more of the following apply to the at least one first sub-configuration and the at least one second sub-configuration: The at least one first sub-configuration and the at least one second sub-configuration share the same parameters, or The at least one first sub-configuration and the at least one second sub-configuration correspond to the same domain adaptation, or The at least one first sub-configuration and the at least one second sub-configuration do not include a parameter, or The at least one first subconfiguration and the at least one second subconfiguration have specific configuration elements or belong to a group of subconfigurations.

14. The apparatus of claim 1, wherein the at least one first subconfiguration comprises a first plurality of subconfigurations, or the at least one second subconfiguration comprises a second plurality of subconfigurations.

15. The apparatus of claim 14, wherein the instructions, when executed by the at least one processor, cause the apparatus to at least: determining whether channel state information of at least one subconfiguration of the first plurality of subconfigurations and channel state information of at least one subconfiguration of the second plurality of subconfigurations are associated with the channel state information reference signal resource; and Do at least one of the following: In response to the channel state information of the at least one subconfiguration in the first plurality of subconfigurations and the channel state information of the at least one subconfiguration in the second plurality of subconfigurations being associated to the channel state information reference signal resource, determining to send at least one indicator in the channel state information of the corresponding at least one subconfiguration in the first plurality of subconfigurations, and determining not to send multiple corresponding indicators in the channel state information of the second plurality of subconfigurations, or In response to the channel state information of at least one sub-configuration in the first multiple sub-configurations, and the channel state information of at least one sub-configuration in the second multiple sub-configurations being associated with the channel state information reference signal resource, it is determined to send multiple corresponding indicators in the channel state information of the first multiple sub-configurations, and it is determined not to send at least one indicator in the channel state information of the corresponding at least one sub-configuration in the second multiple sub-configurations.

16. The apparatus of claim 1, wherein the instructions, when executed by the at least one processor, cause the apparatus to at least: In response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to the same or linked channel state information reference signal resource, determining to send the at least one indicator in the channel state information of the at least one first subconfiguration; and In response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated with the same or linked channel state information reference signal resource, it is determined not to send an indicator in the channel state information of the at least one second subconfiguration.

17. The apparatus according to any one of claims 1 to 16, wherein the rank indicator of the at least one first subconfiguration is the same as the rank indicator of the at least one second subconfiguration.

18. An apparatus for wireless communication, comprising: at least one processor; as well as at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to at least: Sending a channel state information reporting configuration to a user equipment, wherein the channel state information reporting configuration includes at least one first sub-configuration and at least one second sub-configuration; In response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to a channel state information reference signal resource, receiving at least one indicator in the channel state information of the at least one first subconfiguration; as well as Wherein, in response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to the channel state information reference signal resource, at least one indicator in the channel state information of the at least one second subconfiguration is not received.

19. The device according to claim 18, wherein: The at least one indicator in the channel state information of the at least one first subconfiguration comprises a precoding matrix indicator; and The at least one indicator in the channel state information of the at least one second subconfiguration comprises a precoding matrix indicator.

20. The apparatus of claim 18, wherein: The at least one indicator in the channel state information of the at least one first subconfiguration comprises a layer indicator; and The at least one indicator in the channel state information of the at least one second subconfiguration comprises a layer indicator.

21. The apparatus of claim 18, wherein the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration are associated to the channel state information reference signal resource based on the channel state information reporting configuration.

22. The apparatus of claim 18, wherein the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration are associated to the channel state information reference signal resource based on a selection of at least one channel state information reference signal resource indicator.

23. The apparatus of claim 18, wherein the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration are associated with the channel state information reference signal resource based on at least one of: The channel state information reference signal resources for the at least one first subconfiguration are linked to the channel state information reference signal resources for the at least one second subconfiguration, or the channel state information reference signal resource for the at least one first subconfiguration is linked to the channel state information reference signal resource for the at least one second subconfiguration, wherein at least one or selected channel state information reference signal resource indicator for the channel state information for the at least one first subconfiguration points to the channel state information reference signal resource for the at least one first subconfiguration, and at least one or selected channel state information reference signal resource indicator for the channel state information for the at least one second subconfiguration points to the channel state information reference signal resource for the at least one second subconfiguration, or The selected channel state information reference signal resource indicator for the channel state information of the at least one first subconfiguration is the same as the selected channel state information reference signal resource indicator for the channel state information of the at least one second subconfiguration.

24. The apparatus of claim 18, wherein the instructions, when executed by the at least one processor, cause the apparatus to at least: In response to an index of the at least one first subconfiguration being higher or lower than an index of the at least one second subconfiguration, receiving the at least one indicator in the channel state information of the at least one first subconfiguration; Wherein, in response to the index of the at least one second subconfiguration being lower or higher than the index of the at least one first subconfiguration, the at least one indicator in the channel state information of the at least one second subconfiguration is not received.

25. The apparatus according to claim 24, wherein the index of the at least one first subconfiguration and the index of the at least one second subconfiguration correspond to respective positions of the at least one first subconfiguration and the at least one second subconfiguration in the channel state information reporting configuration.

26. The apparatus of claim 18, wherein the instructions, when executed by the at least one processor, cause the apparatus to at least: In response to the rank indicator of the at least one first subconfiguration being higher than the rank indicator of the at least one second subconfiguration, receiving the at least one indicator in the channel state information of the at least one first subconfiguration; Wherein, in response to the rank indicator of the at least one first subconfiguration being higher than the rank indicator of the at least one second subconfiguration, the at least one indicator in the channel state information of the at least one second subconfiguration is not received.

27. The apparatus of claim 18, wherein: The at least one indicator in the channel state information of the at least one first subconfiguration comprises a wideband precoding matrix indicator; as well as The at least one indicator in the channel state information of the at least one second subconfiguration comprises a wideband precoding matrix indicator.

28. The apparatus of claim 27, wherein the rank indicator of the at least one first subconfiguration is different from the rank indicator of the at least one second subconfiguration.

29. The apparatus of claim 18, wherein the instructions, when executed by the at least one processor, cause the apparatus to at least: Based on the channel state information reporting configuration, the channel state information of the at least one first sub-configuration and the channel state information of the at least one second sub-configuration are received in a channel state information report.

30. The apparatus of claim 18, wherein one or more of the following apply to the at least one first sub-configuration and the at least one second sub-configuration: The at least one first sub-configuration and the at least one second sub-configuration share the same parameters, or The at least one first sub-configuration and the at least one second sub-configuration correspond to the same domain adaptation, or The at least one first sub-configuration and the at least one second sub-configuration do not include a parameter, or The at least one first subconfiguration and the at least one second subconfiguration have specific configuration elements or belong to a group of subconfigurations.

31. The apparatus of claim 18, wherein the at least one first subconfiguration comprises a first plurality of subconfigurations, or the at least one second subconfiguration comprises a second plurality of subconfigurations.

32. The apparatus of claim 31 , wherein the instructions, when executed by the at least one processor, cause the apparatus to perform at least one of the following: In response to the channel state information of at least one of the first plurality of subconfigurations and the channel state information of at least one of the second plurality of subconfigurations being associated to the channel state information reference signal resource, receiving at least one indicator in the channel state information of the corresponding at least one of the first plurality of subconfigurations, wherein a plurality of corresponding indicators in the channel state information of the second plurality of subconfigurations are not received, or In response to the channel state information of at least one subconfiguration in the first plurality of subconfigurations and the channel state information of at least one subconfiguration in the second plurality of subconfigurations being associated to the channel state information reference signal resource, multiple corresponding indicators are received in the channel state information of the first plurality of subconfigurations, wherein at least one indicator in the channel state information of the corresponding at least one subconfiguration in the second plurality of subconfigurations is not received.

33. The apparatus of claim 18, wherein the instructions, when executed by the at least one processor, cause the apparatus to at least: receiving the at least one indicator in the channel state information of the at least one first subconfiguration in response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to the same or linked channel state information reference signal resource; Wherein, in response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated with the same or linked channel state information reference signal resource, the at least one indicator in the channel state information of the at least one second subconfiguration is not received.

34. The apparatus according to any one of claims 18 to 33, wherein the rank indicator of the at least one first subconfiguration is the same as the rank indicator of the at least one second subconfiguration.

35. An apparatus for wireless communication, comprising: means for determining whether channel state information of at least one first sub-configuration in a channel state information reporting configuration and channel state information of at least one second sub-configuration in the channel state information reporting configuration are associated with a channel state information reference signal resource; means for determining to send at least one indicator in the channel state information of the at least one first subconfiguration in response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to the channel state information reference signal resource; as well as Means for determining not to send at least one indicator in the channel state information of the at least one second subconfiguration in response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to the channel state information reference signal resource.

36. An apparatus for wireless communication, comprising: A means for sending a channel state information reporting configuration to a user equipment, the channel state information reporting configuration comprising at least one first sub-configuration and at least one second sub-configuration; means for receiving at least one indicator in the channel state information of the at least one first subconfiguration in response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to a channel state information reference signal resource; and Wherein, in response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated with the channel state information reference signal resource, at least one indicator in the channel state information of the at least one second subconfiguration is not received.

37. A non-transitory program storage device readable by a machine, tangibly embodying a program of instructions, said instructions being executable by said machine for performing operations comprising: determining whether channel state information of at least one first sub-configuration in a channel state information reporting configuration and channel state information of at least one second sub-configuration in the channel state information reporting configuration are associated with a channel state information reference signal resource; In response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to the channel state information reference signal resource, determining to send at least one indicator in the channel state information of the at least one first subconfiguration; as well as In response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated with the channel state information reference signal resource, it is determined not to send at least one indicator in the channel state information of the at least one second subconfiguration.

38. A non-transitory program storage device readable by a machine, tangibly embodying a program of instructions, said instructions being executable by said machine for performing operations comprising: Sending a channel state information reporting configuration to a user equipment, wherein the channel state information reporting configuration includes at least one first sub-configuration and at least one second sub-configuration; In response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to a channel state information reference signal resource, receiving at least one indicator in the channel state information of the at least one first subconfiguration; as well as Wherein, in response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to the channel state information reference signal resource, at least one indicator in the channel state information of the at least one second subconfiguration is not received.

39. A method for wireless communication, comprising: determining whether channel state information of at least one first sub-configuration in a channel state information reporting configuration and channel state information of at least one second sub-configuration in the channel state information reporting configuration are associated with a channel state information reference signal resource; In response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to the channel state information reference signal resource, determining to send at least one indicator in the channel state information of the at least one first subconfiguration; as well as In response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated with the channel state information reference signal resource, it is determined not to send at least one indicator in the channel state information of the at least one second subconfiguration.

40. A method for wireless communication, comprising: Sending a channel state information reporting configuration to a user equipment, wherein the channel state information reporting configuration includes at least one first sub-configuration and at least one second sub-configuration; In response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to a channel state information reference signal resource, receiving at least one indicator in the channel state information of the at least one first subconfiguration; as well as Wherein, in response to the channel state information of the at least one first subconfiguration and the channel state information of the at least one second subconfiguration being associated to the channel state information reference signal resource, at least one indicator in the channel state information of the at least one second subconfiguration is not received.

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