Channel state information reporting

Abstract

The present disclosure relates to channel state information reporting. Apparatuses, methods, and systems are disclosed for channel state information reporting. One method (1000) includes receiving (1002) channel state information reporting configuration information, where the channel state information reporting configuration information includes: information indicating one or more channel state information channel state information reference signal resource configurations associated with a channel state information channel state information reference signal resource set for channel measurement and a channel state information interference management resource set for interference measurement; and information indicating use of channel state information feedback corresponding to multiple points. The method (1000) includes generating (1004) a set of channel state information reports based on the channel state information reporting configuration information. Each channel state information report in the set of channel state information reports includes two parts. The method (1000) includes reporting (1006) the set of channel state information reports to a network.

Description

[0001] This application is a divisional application of Chinese invention patent application "Channel State Information Report", which entered the Chinese national phase on October 20, 2022, with PCT application number PCT / IB2021 / 053341, international filing date of April 22, 2021, and Chinese application number 202180029660.0.

[0002] Cross-reference to related applications

[0003] This application claims U.S. Patent Application Serial No. 63 / 015,359, filed April 24, 2020, entitled "Apparatus, Methods, and Systems for CSI Reporting ENHANCEMENTS for Multi-TRP / Panel Transmission"; U.S. Patent Application Serial No. 63 / 015,366, filed April 24, 2020, entitled "Apparatus, Methods, and Systems for CSI Reporting ENHANCEMENTS for Multi-TRP / Panel Transmission: Hypotheses Reduction"; and Khalid Zeineddine's U.S. Patent Application Serial No. 63 / 015,366, filed April 24, 2020, entitled "Apparatus, Methods, and Systems for CSI Reporting ENHANCEMENTS for Multi-TRP / Panel Transmission: Hypotheses Reduction". Priority is given to U.S. Patent Application Serial No. 63 / 015,372, entitled “METHODS, AND SYSTEMS FOR CSI REPORTING ENHANCEMENTS FORMULTI-TRP / PANEL TRANSMISSION”, all of which are incorporated herein by reference in their entirety. Technical Field

[0004] The topics disclosed in this article generally relate to wireless communication, and more specifically to channel state information reporting. Background Technology

[0005] In some wireless communication networks, one or more channel state information reports can be made. In multi-TRP and / or multi-panel networks, channel state information reports may be transmitted inefficiently. Summary of the Invention

[0006] Methods for channel state information reporting are disclosed. Apparatus and systems also perform the functions of these methods. One embodiment of a method includes receiving channel state information reporting configuration information. The channel state information reporting configuration information includes: information indicating the configuration of one or more channel state information reference signal resources associated with one or more channel state information reference signal resource sets for channel measurement, interference measurement, or a combination thereof; and information indicating the use of channel state information feedback corresponding to a plurality of points. Each of the plurality of points is associated with a non-zero power channel state information reference signal resource of the channel state information reference signal resource set for channel measurement, and at least one of the plurality of points is associated with one or more channel state information interference management resources for zero power interference measurement. In some embodiments, the method includes performing channel measurement using the channel state information reference signal resource set. In various embodiments, the method includes generating a channel state information report set based on the channel state information reporting configuration information.

[0007] An apparatus for channel state information reporting includes a receiver configured to receive channel state information reporting configuration information, wherein the channel state information reporting configuration information includes: information indicating the configuration of one or more channel state information reference signal resources associated with one or more channel state information reference signal resource sets for channel measurement, interference measurement, or a combination thereof; and information indicating the use of channel state information feedback corresponding to a plurality of points, wherein each of the plurality of points is associated with a non-zero power channel state information reference signal resource of the channel state information reference signal resource set for channel measurement, and at least one of the plurality of points is associated with one or more channel state information interference management resources for zero power interference measurement. In various embodiments, the device includes a processor configured to: perform channel measurements using a set of channel state information reference signal resources; and generate a set of channel state information reports based on channel state information report configuration information, wherein each of a plurality of points corresponds to a transmit and receive point or a panel of transmit and receive points, and wherein information indicating the use of channel state information feedback for the plurality of points includes: radio resource control parameters within the channel state information report configuration; the number of channel state information reports within the channel state information report configuration; quasi-co-location relationships relating to one or more channel state information reference signal resources within one or more sets of channel state information reference signal resources; code points indicating different downlink control information states; codebook type parameters; codebook configuration parameters; transmission configuration indicator code points from a transmission configuration including at least two transmission configuration indicator states; indications of spatial multiplexing schemes across the plurality of points; or combinations thereof.

[0008] Another embodiment of a method for channel state information reporting includes receiving channel state information reporting configuration information, wherein the channel state information reporting configuration information includes: information indicating the configuration of one or more channel state information reference signal resources associated with a channel state information reference signal resource set for channel measurement and a channel state information interference management resource set for interference measurement; and information indicating the use of channel state information feedback corresponding to a plurality of points, wherein each of the plurality of points is associated with a non-zero power channel state information reference signal resource for channel measurement in the channel state information reference signal resource set, and the plurality of points are associated with one or more channel state information interference management resources for interference measurement in the channel state information interference management resource set. In some embodiments, the method includes generating a set of channel state information reports based on the channel state information reporting configuration information, wherein each channel state information report in the set of channel state information reports includes two parts. In various embodiments, the method includes reporting the set of channel state information reports to a network.

[0009] Another device for channel state information reporting includes a receiver configured to receive channel state information reporting configuration information, wherein the channel state information reporting configuration information includes: information indicating the configuration of one or more channel state information reference signal resources associated with a channel state information reference signal resource set for channel measurement and a channel state information interference management resource set for interference measurement; and information indicating the use of channel state information feedback corresponding to a plurality of points, wherein each of the plurality of points is associated with a non-zero power channel state information reference signal resource for channel measurement in the channel state information reference signal resource set, the plurality of points are associated with one or more channel state information interference management resources for interference measurement in the channel state information interference management resource set, and each of the plurality of points corresponds to a transmit and receive point or a panel of transmit and receive points. In various embodiments, the device includes a processor configured to: generate a set of channel state information reports based on the channel state information reporting configuration information, wherein each channel state information report in the set of channel state information reports includes two parts; and report the set of channel state information reports to a network.

[0010] Another embodiment of a channel state information reporting method includes receiving channel state information reporting configuration information, wherein the channel state information reporting configuration information includes: information indicating one or more channel state information-reference signal resource configurations associated with at least one non-zero power channel state information reference signal resource set for channel measurement; and information indicating the use of channel state information reporting configurations corresponding to a plurality of points, wherein the plurality of points are associated with points of a primary group or points of a secondary group. In some embodiments, the method includes performing channel measurements using at least one non-zero power channel state information reference signal resource set. In various embodiments, the method includes generating a channel state information report set based on the channel state information reporting configuration information.

[0011] Another device for channel state information reporting includes a receiver configured to receive channel state information reporting configuration information, wherein the channel state information reporting configuration information includes: information indicating one or more channel state information-reference signal resource configurations associated with at least one non-zero power channel state information reference signal resource set for channel measurement; and information indicating the use of channel state information reporting configurations corresponding to a plurality of points, wherein the plurality of points are associated with points of a primary group or points of a secondary group. In various embodiments, the device includes a processor configured to: perform channel measurements using at least one non-zero power channel state information reference signal resource set; and generate a channel state information report set based on the channel state information reporting configuration information. Attached Figure Description

[0012] A more detailed description of the embodiments briefly described above will be presented with reference to the specific embodiments illustrated in the accompanying drawings. It should be understood that these drawings depict only some embodiments and are not intended to be limiting of the scope; the embodiments will be described and explained with additional specificity and detail using the drawings, in which: Figure 1 This is a schematic block diagram illustrating one embodiment of a wireless communication system for reporting channel state information; Figure 2 This is a schematic block diagram illustrating one embodiment of a device that can be used for channel state information reporting; Figure 3 This is a schematic block diagram illustrating one embodiment of a device that can be used for channel state information reporting; Figure 4 This is a diagram illustrating one embodiment of a non-periodic triggering state that defines a list of CSI report settings; Figure 5 This is a code sample illustrating an embodiment of a process that indicates resource sets and QCL information through its non-periodic triggering state; Figure 6 This is a code sample illustrating an embodiment of an RRC configuration including NZP-CSI-RS resources and CSI-IM-resources; Figure 7 This is a schematic block diagram illustrating one embodiment of partial CSI omissions for PUSCH-based CSI; Figure 8 This is a schematic block diagram illustrating an embodiment in which two TRPs jointly transmit data to a user equipment using a single codeword; Figure 9 This is a flowchart illustrating an embodiment of a method for reporting channel state information; Figure 10 This is a flowchart illustrating another embodiment of a channel state information reporting method; and Figure 11 This is a flowchart illustrating yet another embodiment of a method for reporting channel state information. Detailed Implementation

[0013] As those skilled in the art will understand, aspects of the embodiments can be embodied as systems, apparatus, methods, or program products. Therefore, embodiments can take the form of entirely hardware embodiments, entirely software embodiments (including firmware, resident software, microcode, etc.), or embodiments combining software and hardware aspects, which may generally be referred to herein as “circuit,” “module,” or “system.” Furthermore, embodiments can take the form of program products embodied in one or more computer-readable storage devices stored in machine-readable code, computer-readable code, and / or program code, hereinafter referred to as code. The storage device may be tangible, non-transitory, and / or non-transferable. The storage device may not embody signals. In one embodiment, the storage device uses only signals for accessing the code.

[0014] Certain functional units described in this specification may be designated as modules to more specifically emphasize their implementation independence. For example, modules may be implemented as hardware circuits comprising custom very large-scale integration (“VLSI”) circuits or gate arrays, off-the-shelf semiconductors such as logic chips, transistors, or other discrete components. Modules may also be implemented in programmable hardware devices such as field-programmable gate arrays, programmable array logic, programmable logic devices, etc.

[0015] Modules can also be implemented in code and / or software for execution by various types of processors. Identified code modules may, for example, comprise one or more physical or logical blocks of executable code, which may be organized, for example, as objects, procedures, or functions. However, the executable files of the identified modules do not need to be physically located together, but may include different instructions stored in different locations that, when logically joined together, comprise the module and achieve the module's stated purpose.

[0016] In practice, a module of code can be a single instruction or many instructions, and can even be distributed across several different code segments, different programs, and across several memory devices. Similarly, in this document, operational data can be identified and visualized within a module, and can be represented in any suitable form and organized within any suitable type of data structure. Operational data can be collected as a single dataset or can be distributed across different locations, including different computer-readable storage devices. Where a module or part of a module is implemented in software, the software portion is stored on one or more computer-readable storage devices.

[0017] Any combination of one or more computer-readable media may be used. A computer-readable medium may be a computer-readable storage medium. A computer-readable storage medium may be a storage device for storing code. A storage device may be, for example, but not limited to, electronic, magnetic, optical, electromagnetic, infrared, holographic, micromechanical, or semiconductor systems, apparatuses, or devices, or any suitable combination thereof.

[0018] More specific examples of storage devices (a non-exhaustive list) will include the following: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (“RAM”), read-only memory (“ROM”), erasable programmable read-only memory (“EPROM” or flash memory), portable compact disc read-only memory (“CD-ROM”), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing. In the context of this document, a computer-readable storage medium can be any tangible medium capable of containing or storing programs for use by or in conjunction with an instruction execution system, apparatus, or device.

[0019] The code used to perform the operations of the embodiments can be any number of lines and can be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Python, Ruby, Java, Smalltalk, C++, and traditional procedural programming languages ​​such as the "C" programming language, and / or machine languages ​​such as assembly language. The code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the latter case, the remote computer can be connected to the user's computer via any type of network including a local area network ("LAN") or a wide area network ("WAN"), or it can be connected to an external computer (e.g., via the Internet through an Internet service provider).

[0020] References to "an embodiment," "embodiment," or similar language in this specification mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in at least one embodiment. Therefore, unless expressly stated otherwise, throughout this specification, the phrases "in an embodiment," "in an embodiment," and similar language may, but not necessarily all, refer to the same embodiment, but rather mean "one or more, but not all, embodiments." Unless expressly stated otherwise, the terms "comprising," "including," "having," and variations thereof mean "including, but not limited to,". Unless expressly stated otherwise, the list of enumerated items does not imply that any or all items are mutually exclusive. Unless expressly stated otherwise, the terms "a," "an," and "the" also mean "one or more".

[0021] Furthermore, the features, structures, or characteristics of the described embodiments can be combined in any suitable manner. Numerous specific details, such as examples of programming, software modules, user selection, network transactions, database queries, database structures, hardware modules, hardware circuits, hardware chips, etc., are provided in the following description to provide a thorough understanding of the embodiments. However, those skilled in the art will recognize that the embodiments can be practiced without one or more of the specific details, or using other methods, components, materials, etc. In other instances, well-known structures, materials, or operations have not been shown or described in detail to avoid obscuring aspects of the embodiments.

[0022] The following description of aspects of embodiments is based on schematic flowcharts and / or schematic block diagrams of methods, apparatus, systems, and program products according to embodiments. It will be understood that each block of the schematic flowcharts and / or schematic block diagrams, and combinations of blocks in the schematic flowcharts and / or schematic block diagrams, can be implemented by code. The code can be provided to a processor of a general-purpose computer, special-purpose computer, or other programmable data processing apparatus to generate machinery, such that instructions executable via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions / actions specified in the blocks or blocks of the schematic flowcharts and / or schematic block diagrams.

[0023] The code may also be stored in a storage device that can instruct a computer, other programmable data processing device or other device to operate in a particular manner, such that the instructions stored in the storage device produce an article of art including instructions that implement the functions / actions specified in the schematic flowchart and / or schematic block diagram boxes or blocks.

[0024] The code may also be loaded onto a computer, other programmable data processing apparatus or other device to cause a series of operational steps to be performed on the computer, other programmable apparatus or other device, thereby producing a computer-implemented process, such that the code executing on the computer or other programmable apparatus provides a process for implementing the function / action specified in the flowchart and / or block diagram boxes or boxes.

[0025] The schematic flowcharts and / or schematic block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatus, systems, methods, and program products according to various embodiments. In this regard, each block in the schematic flowcharts and / or schematic block diagrams may represent a module, segment, or portion of code, which includes one or more executable instructions for implementing a specified logical function.

[0026] It should also be noted that in some alternative implementations, the functions marked in the boxes may not occur in the order indicated in the figures. For example, two boxes shown consecutively may actually be executed substantially simultaneously, or these boxes may sometimes be executed in reverse order, depending on the functions involved. Other steps and methods that are functionally, logically, or effectively equivalent to one or more boxes or portions thereof in the illustrated figures are conceivable.

[0027] While various arrow and line types may be used in flowcharts and / or block diagrams, it should be understood that they do not limit the scope of the corresponding embodiments. In fact, some arrows or other connectors may be used only to indicate the logical flow of the depicted embodiment. For example, an arrow may indicate a wait or monitoring period of unspecified duration between enumeration steps in a depicted embodiment. It will also be noted that each block in the block diagram and / or flowchart, and combinations of blocks in the block diagram and / or flowchart, can be implemented by a system based on dedicated hardware or a combination of dedicated hardware and code that performs a specific function or action.

[0028] The description of the elements in each figure can be referenced to the elements in the preceding figures. The same numbers refer to the same elements in all figures, including alternative embodiments of the same elements.

[0029] Figure 1 An embodiment of a wireless communication system 100 for reporting channel state information is depicted. In one embodiment, the wireless communication system 100 includes a remote unit 102 and a network unit 104. Although in Figure 1 A specific number of remote units 102 and network units 104 are depicted, but those skilled in the art will recognize that any number of remote units 102 and network units 104 can be included in the wireless communication system 100.

[0030] In one embodiment, remote unit 102 may include computing devices such as desktop computers, laptop computers, personal digital assistants (“PDAs”), tablet computers, smartphones, smart TVs (e.g., internet-connected televisions), set-top boxes, game consoles, security systems (including security cameras), in-vehicle computers, network devices (e.g., routers, switches, modems), aircraft, drones, etc. In some embodiments, remote unit 102 includes wearable devices such as smartwatches, fitness bands, optical head-mounted displays, etc. Furthermore, remote unit 102 may be referred to as a subscriber unit, mobile device, mobile station, user, terminal, mobile terminal, fixed terminal, subscriber station, UE, user terminal, device, or other terms used in the art. Remote unit 102 may communicate directly with one or more network units 104 via UL communication signals. In some embodiments, remote unit 102 may communicate directly with other remote units 102 via sidelink communication.

[0031] Network unit 104 may be distributed across a geographical area. In some embodiments, network unit 104 may also be referred to as and / or may include access point, access terminal, base station, base station, core network (“CN”), radio network entity, node-B, evolved node-B (“eNB”), 5G node-B (“gNB”), home node-B, relay node, device, core network, air server, radio access node, access point (“AP”), new radio (“NR”), network entity, access and mobility management function (“AMF”), unified data management (“UDM”), unified data repository (“UDR”), UDM / UDR, policy control function (“PCF”), radio access network (“RAN”), network slice selection function (“NSSF”), operations, administration and management (“OAM”), session management function (“SMF”), user plane function (“UPF”), application function, authentication server function (“AUSF”), security anchor functionality (“SEAF”), trusted non-3GPP gateway function (“TNGF”), or any other term used in the art. Network unit 104 is typically part of a radio access network that includes one or more controllers communicatively coupled to one or more corresponding network units 104. The radio access network is typically communicatively coupled to one or more core networks, which may be coupled to other networks such as the Internet and the public switched telephone network, as well as other networks. These and other elements of the radio access and core networks are not illustrated, but are generally well known to those skilled in the art.

[0032] In one implementation, the wireless communication system 100 conforms to the NR protocol standardized in the 3rd Generation Partnership Project (“3GPP”), wherein network unit 104 transmits using an OFDM modulation scheme on the downlink (“DL”), and remote unit 102 transmits on the uplink (“UL”) using a single-carrier frequency division multiple access (“SC-FDMA”) scheme or an orthogonal frequency division multiplexing (“OFDM”) scheme. However, more generally, the wireless communication system 100 may implement other open or proprietary communication protocols, such as WiMAX, IEEE 802.11 variants, GSM, GPRS, UMTS, LTE variants, CDMA2000, Bluetooth®, ZigBee, Sigfoxx, and other protocols. This disclosure is not intended to limit implementation to any particular wireless communication system architecture or protocol.

[0033] Network unit 104 can serve multiple remote units 102 within a service area (e.g., a cell or cell sector) via a wireless communication link. Network unit 104 transmits DL communication signals in the time, frequency, and / or spatial domains to serve the remote units 102.

[0034] In various embodiments, remote unit 102 may receive channel state information report configuration information. The channel state information report configuration information includes: information indicating the configuration of one or more channel state information reference signal resources associated with one or more channel state information reference signal resource sets for channel measurement, interference measurement, or a combination thereof; and information using channel state information feedback corresponding to multiple points. Each of the multiple points is associated with a non-zero power channel state information reference signal resource for channel measurement in the channel state information reference signal resource set, and at least one of the multiple points is associated with one or more channel state information interference management resources for zero-power interference measurement. In some embodiments, remote unit 102 may use the channel state information reference signal resource set to perform channel measurement. In various embodiments, remote unit 102 may generate a channel state information report set based on the channel state information report configuration information. Therefore, remote unit 102 can be used for channel state information reporting.

[0035] In some embodiments, remote unit 102 may receive channel state information report configuration information, wherein the channel state information report configuration information includes: information indicating the configuration of one or more channel state information reference signal resources associated with a channel state information reference signal resource set for channel measurement and a channel state information interference management resource set for interference measurement; and information indicating the use of channel state information feedback corresponding to a plurality of points, wherein each of the plurality of points is associated with a non-zero power channel state information reference signal resource for channel measurement in the channel state information reference signal resource set, and the plurality of points are associated with one or more channel state information interference management resources for interference measurement in the channel state information interference management resource set. In some embodiments, remote unit 102 may generate a channel state information report set based on the channel state information report configuration information, wherein each channel state information report in the channel state information report set includes two parts. In various embodiments, remote unit 102 may report the channel state information report set to the network. Therefore, remote unit 102 can be used for channel state information reporting.

[0036] In some embodiments, the remote unit 102 may receive channel state information report configuration information, wherein the channel state information report configuration information includes: information indicating one or more channel state information-reference signal resource configurations associated with at least one non-zero power channel state information reference signal resource set for channel measurement; and information indicating the use of channel state information report configurations corresponding to a plurality of points, wherein the plurality of points are associated with points of a primary group or points of a secondary group. In some embodiments, the remote unit 102 may use at least one non-zero power channel state information reference signal resource set to perform channel measurement. In various embodiments, the remote unit 102 may generate a channel state information report set based on the channel state information report configuration information. Therefore, the remote unit 102 can be used for channel state information reporting.

[0037] Figure 2 An embodiment of a device 200 that can be used for channel state information reporting is depicted. The device 200 includes one embodiment of a remote unit 102. Furthermore, the remote unit 102 may include a processor 202, a memory 204, an input device 206, a display 208, a transmitter 210, and a receiver 212. In some embodiments, the input device 206 and the display 208 are combined into a single device, such as a touchscreen. In some embodiments, the remote unit 102 may not include any input device 206 and / or display 208. In various embodiments, the remote unit 102 may include one or more of the processor 202, memory 204, transmitter 210, and receiver 212, and may not include the input device 206 and / or display 208.

[0038] In one embodiment, processor 202 may include any known controller capable of executing computer-readable instructions and / or performing logical operations. For example, processor 202 may be a microcontroller, microprocessor, central processing unit (“CPU”), graphics processing unit (“GPU”), auxiliary processing unit, field-programmable gate array (“FPGA”), or similar programmable controller. In some embodiments, processor 202 executes instructions stored in memory 204 to perform the methods and routines described herein. Processor 202 is communicatively coupled to memory 204, input device 206, display 208, transmitter 210, and receiver 212.

[0039] In one embodiment, memory 204 is a computer-readable storage medium. In some embodiments, memory 204 includes volatile computer storage media. For example, memory 204 may include RAM, including dynamic RAM (“DRAM”), synchronous dynamic RAM (“SDRAM”), and / or static RAM (“SRAM”). In some embodiments, memory 204 includes non-volatile computer storage media. For example, memory 204 may include a hard disk drive, flash memory, or any other suitable non-volatile computer storage device. In some embodiments, memory 204 includes both volatile and non-volatile computer storage media. In some embodiments, memory 204 also stores program code and related data, such as an operating system or other controller algorithms operating on remote unit 102.

[0040] In one embodiment, input device 206 may include any known computer input device, including a touch panel, buttons, keyboard, stylus, microphone, etc. In some embodiments, input device 206 may be integrated with display 208, for example, as a touchscreen or similar touch-sensitive display. In some embodiments, input device 206 includes a touchscreen, enabling text input using a virtual keyboard displayed on the touchscreen and / or by handwriting on the touchscreen. In some embodiments, input device 206 includes two or more different devices such as a keyboard and a touch panel.

[0041] In one embodiment, display 208 may include any known electronically controllable display or display device. Display 208 may be designed to output visual, auditory, and / or tactile signals. In some embodiments, display 208 includes an electronic display capable of outputting visual data to a user. For example, display 208 may include, but is not limited to, a liquid crystal display (“LCD”), a light-emitting diode (“LED”) display, an organic light-emitting diode (“OLED”) display, a projector, or similar display devices capable of outputting images, text, etc., to a user. As another non-limiting example, display 208 may include a wearable display such as a smartwatch, smart glasses, a heads-up display, etc. Furthermore, display 208 may be a component of a smartphone, personal digital assistant, television, desktop computer, laptop computer, personal computer, vehicle dashboard, etc.

[0042] In some embodiments, display 208 includes one or more speakers for generating sound. For example, display 208 may generate an audible alarm or notification (e.g., a beep or ringtone). In some embodiments, display 208 includes one or more haptic devices for generating vibration, motion, or other haptic feedback. In some embodiments, all or part of display 208 may be integrated with input device 206. For example, input device 206 and display 208 may form a touchscreen or similar touch-sensitive display. In other embodiments, display 208 may be located near input device 206.

[0043] In some embodiments, receiver 212 is configured to receive channel state information report configuration information, wherein the channel state information report configuration information includes: information indicating the configuration of one or more channel state information reference signal resources associated with one or more channel state information reference signal resource sets for channel measurement, interference measurement, or a combination thereof; and information indicating the use of channel state information feedback corresponding to a plurality of points, wherein each of the plurality of points is associated with a non-zero power channel state information reference signal resource for channel measurement in the channel state information reference signal resource set, and at least one of the plurality of points is associated with one or more channel state information interference management resources for zero power interference measurement. In various embodiments, processor 202 is configured to: perform channel measurements using a set of channel state information reference signal resources; and generate a set of channel state information reports based on channel state information report configuration information, wherein each of the plurality of points corresponds to a transmit and receive point or a panel of transmit and receive points, and wherein information indicating the use of channel state information feedback for the plurality of points includes: radio resource control parameters within the channel state information report configuration; the number of channel state information reports within the channel state information report configuration; quasi-co-location relationships relating to one or more channel state information reference signal resources within one or more sets of channel state information reference signal resources; code points indicating different downlink control information states; codebook type parameters; codebook configuration parameters; transmission configuration indicator code points from a transmission configuration including at least two transmission configuration indicator states; indications of spatial multiplexing schemes across the plurality of points; or combinations thereof.

[0044] In some embodiments, receiver 212 is configured to receive channel state information report configuration information, wherein the channel state information report configuration information includes: information indicating the configuration of one or more channel state information reference signal resources associated with a channel state information reference signal resource set for channel measurement and a channel state information interference management resource set for interference measurement; and information indicating the use of channel state information feedback corresponding to a plurality of points, wherein each of the plurality of points is associated with a non-zero power channel state information reference signal resource for channel measurement in the channel state information reference signal resource set, the plurality of points are associated with one or more channel state information interference management resources for interference measurement in the channel state information interference management resource set, and each of the plurality of points corresponds to a transmit and receive point or a panel of transmit and receive points. In various embodiments, processor 202 is configured to: generate a channel state information report set based on the channel state information report configuration information, wherein each channel state information report in the channel state information report set includes two parts; and report the channel state information report set to the network.

[0045] In various embodiments, receiver 212 is configured to receive channel state information report configuration information, wherein the channel state information report configuration information includes: information indicating one or more channel state information-reference signal resource configurations associated with at least one non-zero power channel state information reference signal resource set for channel measurement; and information indicating the use of channel state information report configurations corresponding to a plurality of points, wherein the plurality of points are associated with points of a primary group or points of a secondary group. In various embodiments, processor 202 is configured to: perform channel measurements using at least one non-zero power channel state information reference signal resource set; and generate a channel state information report set based on the channel state information report configuration information.

[0046] Although only one transmitter 210 and one receiver 212 are illustrated, the remote unit 102 can have any suitable number of transmitters 210 and receivers 212. The transmitters 210 and receivers 212 can be of any suitable type. In one embodiment, the transmitters 210 and receivers 212 can be part of a transceiver.

[0047] Figure 3An embodiment of a device 300 that can be used for channel state information reporting is depicted. Device 300 includes one embodiment of a network unit 104. Furthermore, network unit 104 may include a processor 302, a memory 304, an input device 306, a display 308, a transmitter 310, and a receiver 312. As will be understood, processor 302, memory 304, input device 306, display 308, transmitter 310, and receiver 312 may be substantially similar to processor 202, memory 204, input device 206, display 208, transmitter 210, and receiver 212 of remote unit 102, respectively.

[0048] In various embodiments, a new radio (“NR”), multiple transmit and receive points (“TRPs”), or multiple antenna panels within a TRP can communicate simultaneously with a user equipment (“UE”) to enhance coverage, throughput, and / or reliability. In some embodiments, such as for a high-resolution Type II codebook, the number of precoding matrix indicator (“PMI”) bits fed back from the UE in the gNB via uplink control information (“UCI”) can be very large even for single-point transmission (e.g., >1000 bits at high bandwidths). In some embodiments, reducing the number of PMI feedback bits per report can improve efficiency.

[0049] In some embodiments, multiple-input multiple-output (“MIMO”) enhancements in NR may include multiple TRPs and multiple panel transmissions. In such embodiments, multiple TRP transmissions can improve the spectral efficiency, reliability, and / or robustness of the connection and can be used for both ideal and non-ideal backhauls.

[0050] In some embodiments, noncoherent joint transmission (“NCJT”) can be used to increase spectral efficiency by using multiple TRPs. Unlike coherent joint transmission, which uses tight synchronization between TRPs and high channel state information (“CSI”) accuracy for precoding design, NCJT requires each TRP to transmit different layers of the same codeword (e.g., a single scheduled downlink control information (“DCI”) – two physical downlink shared channel (“PDSCH”) transmissions) or layers corresponding to a single codeword (e.g., two scheduled DCIs – two PDSCH transmissions).

[0051] In various embodiments, up to two TRPs can be used for joint transmission. In such embodiments, the UE can be served by multiple TRPs forming a coordination cluster (e.g., possibly connected to a central processing unit).

[0052] In some embodiments, the UE can be dynamically scheduled to be served by one of multiple TRPs in the cluster. In some embodiments, the network can select two TRPs to perform joint transmission. In various embodiments, the UE can report the CSI information required by the network to help it determine a multi-TRP downlink transmission scheme.

[0053] In some embodiments, the number of transport hypotheses increases exponentially with the number of TRPs in the coordination cluster. For example, for 4 TRPs, you might have 10 transport hypotheses: (TRP 1), (TRP 2), (TRP 3), (TRP 4), (TRP 1, TRP 2), (TRP 1, TRP 3), (TRP 1, TRP 4), (TRP 2, TRP 3), (TRP 2, TRP 4), and (TRP 3, TRP 4). The overhead from reporting can increase dramatically with the size of the coordination cluster.

[0054] In various embodiments, uplink transmission resources for transmitting CSI reports may be insufficient, and partial CSI omissions may be used. In some embodiments, CSI reports may be prioritized based on: 1) time-domain behavior and physical channel, wherein more dynamic reports are prioritized over less dynamic reports and the Physical Uplink Shared Channel (“PUSCH”) is prioritized over the Physical Uplink Control Channel (“PUCCH”); 2) CSI content, wherein beam reports (e.g., Layer 1 Reference Signal Received Power (“L1-RSRP”) reports) are prioritized over regular CSI reports; 3) CSIs (e.g., those relating to carrier aggregation (“CA”) operation corresponding to the serving cell—CSIs corresponding to the primary cell (“PCell”) are prioritized over CSIs corresponding to the secondary cell (“Scell”); and 4) report configuration identifiers (e.g., reportConfigID). In such embodiments, prioritization may not take into account that some multi-TRP NCJT transmission assumptions, such as those measured by the UE, may result in low spectral efficiency performance and may be given lower priority.

[0055] For the purpose of multi-TRP NCJT PDSCH transmission, certain embodiments described herein enable the UE to: 1) reduce CSI reporting overhead without degrading performance; and / or 2) modify some CSI omission priorities to favor multi-TRP transmission assumptions with higher spectral efficiency.

[0056] In some embodiments, intelligent technologies for CSI feedback reporting may be used to enable different reports corresponding to different transmission configurations to be co-designed to reduce the overall CSI feedback overhead for multi-TRP and / or panel transmissions.

[0057] In various embodiments, if the gNB is equipped with each polarization having both horizontal and vertical placement... N 1 , N 2 A two-dimensional (“2D”) antenna array with multiple antenna ports and communication occurs N 3 On each PMI subband, and each PMI subband includes a set of resource blocks, each resource block including a set of subcarriers. In such an embodiment, 2 N 1 N 2 Each CSI-RS port can be used to enable high-resolution downlink (“DL”) channel estimation for the NRII codebook. To reduce uplink (“UL”) feedback overhead, spatial domain CSI compression based on Discrete Fourier Transform (“DFT”) can be applied to each polarization. L One dimension, of which L < N 1 N 2 The amplitude and phase values ​​of the linear combination coefficients for each sub-band can be fed back to the gNB as part of the CSI report. Each layer has 2... N 1 N 2 x N 3 A codebook can take the following forms: ,in W 1 It is a 2 with two identical diagonal pieces. N 1 N 2 x2 L Block diagonal matrix ( L < N 1 N 2 ),For example, and B It has columns extracted from a 2D oversampled DFT matrix. N 1 N 2 x L The matrix is ​​as follows: , , , , superscript T This represents the matrix transpose operation. O 1 , O 2 The oversampling factor is assumed to be used to extract the matrix from it. B The 2D DFT matrix. W 1 It is universal across all layers. W 2 It is 2 L x N 3 Matrix, where the first i Column corresponding to the first i In the individual belt 2L Linear combination coefficients of each beam. Only reported. B of L Indexes to selected columns, and using O 1 O 2 The oversampling index of the value. Note that... W 2 It is independent for different layers.

[0058] In some embodiments, frequency compression can be applied in conjunction with spatial compression for Type II codebooks. In addition to spatial compression of the Type II codebook, CSI compression based on the inverse discrete Fourier transform (“IDFT”) can also be applied in the frequency domain, where each beam of the frequency domain precoding vector is transformed using an inverse DFT matrix applied to the delay domain, and the magnitude and phase values ​​of a subset of the delay domain coefficients are selected and fed back to the gNB as part of the CSI report. 2 per layer N 1 N 2 x N 3 The codebook can take the following forms: ,in W 1 It can have the same design and reporting framework as another embodiment of the Type II codebook. W f It has a size selected from the critical sampling size. N 3 Columns of the DFT matrix N 3 x M matrix( M <N 3 ),as follows: , .

[0059] for W f It can only report values ​​from predefined sizes. N 3 DFT matrix M The index of the selected column. Therefore, L , M These represent the equivalent space and frequency dimension after compression, respectively. Finally, 2L x M matrix The linear combination coefficients (“LCC”) represent the spatial and frequency DFT basis vectors. and W f Both are independent for different layers. 2LM Approximately one available coefficient β A small portion of the amplitude and phase values ​​are reported to gNB as part of the CSI report. β <1 (For example, coefficients with zero amplitude can be indicated via a per-layer bitmap - because all coefficients reported within a layer can be normalized with respect to the coefficient with the largest amplitude (e.g., the strongest coefficient), whose relative value is set to one, and amplitude or phase information is not explicitly reported for this coefficient - only an indication of the index of the strongest coefficient in each layer is reported). Therefore, for a single-layer transmission, each layer can report the largest... 2 βLM -1 coefficient's magnitude and phase values ​​(e.g., together with selected...) L , M (index of each DFT vector), thus leading to the same result as in report 2. N 1 N 2 x N 3 The information from -1 coefficients is significantly reduced compared to the size of a CSI report.

[0060] In various embodiments, such as for a Type II port selection codebook, only K (for example, among which) K ≤2 N 1 N 2 Beamforming CSI-RS ports can be used in DL transmissions to reduce complexity. Each layer K x N 3 The codebook matrix can take the following form: .here, and W 3It follows the same structure as some embodiments of the Type II codebook, and may be a specific layer. W 1 It has two identical diagonal pieces. K x2 L Block diagonal matrix, for example, ,and E Its column is a standard unit vector. The matrix is ​​as follows: , in, It is in the i There is a standard unit vector of 1 at each position. Here, d PS It is an RRC parameter, which is in d PS ≤ min( K / 2 , L Under the given conditions, the values ​​{1,2,3,4} are used, while m PS Use value It is also reported as part of the UL CSI feedback overhead. W 1 It is universal across all layers.

[0061] for K =16、 L =4 and d PS =1, corresponding to m PS = {0,1,…,7} E The eight possible implementations are as follows:

[0062] when d PS When =2, it corresponds to m PS ={0,1,2,3} E The four possible implementations are as follows:

[0063] when d PS When =3, it corresponds to m PS ={0,1,2} E The three possible implementations are as follows:

[0064] when d PS When =4, it corresponds to m PS ={0,1} E The two possible implementations are as follows:

[0065] all in all, m PS Parameterization E The position of the first 1 in the first column, and d PS Indicates corresponding to different m PS The value is shifted row by row.

[0066] In some embodiments, the NR Type I codebook can be a baseline codebook for NRs with various configurations. In various embodiments, the Type I codebook can be an embodiment of the NR Type II codebook, wherein for RI=1, 2, L =1, where the reported phase coupling value is for each sub-band, for example... W 2 It is 2x N 3 The first row equals [1, 1, ..., 1], and the second row equals... In some embodiments, 0 = 1 …= For example, broadband reporting. For RI>2, different beams can be used for each pair of layers. In some embodiments, the NR Type I codebook can be depicted as a low-resolution version of the NR Type II codebook with spatial beam selection for each pair of layers and phase-only combination.

[0067] In various embodiments, the codebook report can be partitioned into two parts based on the priority of the reported information. Each part can be encoded separately (e.g., part 1 can have a higher code rate). In some embodiments, the CSI report content includes: 1) Part 1: RI + CQI + total coefficients; and 2) Part 2: SD base indicator + FD base indicator / layer + bitmap and / or layer + coefficient amplitude information and / or layer + coefficient phase information and / or layer + strongest coefficient indicator and / or layer. Furthermore, part 2 CSI can be decomposed into sub-parts, each with a different priority (e.g., higher priority information is listed first). Such partitioning can be performed to achieve a dynamic report size of the codebook based on available resources in the uplink phase.

[0068] In some embodiments, the Type II codebook may be based on aperiodic CSI reports and reported only in the PUSCH via DCI triggering (e.g., one exception). The Type I codebook may be based on periodic CSI reports (e.g., PUCCH), semi-persistent CSI reports (e.g., PUSCH or PUCCH), or aperiodic reports (e.g., PUSCH). Table 1 illustrates one embodiment of prioritization.

[0069] Table 1

[0070] In some embodiments, N Rep The priority of a CSI report can be based on: 1) a CSI report corresponding to a CSI report configuration for a cell can have a higher priority than another CSI report corresponding to a different CSI report configuration for the same cell; 2) a CSI report intended for a cell can have a higher priority than another CSI report intended for another cell; 3) a CSI report can have a higher priority based on its content (e.g., a CSI report carrying L1-RSRP information has a higher priority); and / or 4) a CSI report can have a higher priority based on its type (e.g., whether the CSI report is non-periodic, semi-persistent, or periodic) and whether the report is sent via PUSCH or PUCCH.

[0071] In various embodiments, CSI reports can be prioritized as follows, wherein CSI reports with lower IDs have higher priority: ,in, s CSI report configuration index, M s The maximum number of CSI reports that can be configured. c Cell index, N cells The number of residential communities served. k The CSI report for a carrying L1-RSRP or Layer 1 signal with an interference-to-noise ratio (“L1-SINR”) is 0, otherwise it is 1. y : 0 for non-periodic reports, 1 for semi-persistent reports on PUSCH, 2 for semi-persistent reports on PUCCH, and 3 for periodic reports.

[0072] In some embodiments, for multi-TRP NCJT transmissions, two implementations can be used: 1) sending a downlink scheduling assignment from one TRP, which schedules two PDSCH transmissions from two TRPs respectively—only one transport block (“TB”) can be transmitted, its layer being divided across the PDSCHs of the two schedulings; and 2) sending two downlink scheduling assignments from each TRP with one scheduling DCI. Each DCI can schedule PDSCH transmissions from the corresponding TRP. One or more TBs can be transmitted from each TRP based on the rank of the channel from each TRP.

[0073] In some embodiments, the UE can use the CSI framework to report network CSI information. From the UE's perspective, CSI reporting may be independent of the downlink NCJT scheme used. The triggering mechanism between reporting settings and resource settings can be summarized in Table 2.

[0074] Table 2: Triggering Mechanisms Between Report Settings and Resource Settings

[0075] In various embodiments: all associated resource settings for CSI reporting settings may need to have time-domain behavior; once configured by RRC signaling, periodic CSI-RS and / or interference management (“IM”) resources and CSI reporting may be assumed to exist and be active; non-periodic and semi-persistent CSI-RS and / or IM resources and CSI reporting can be explicitly triggered or activated; non-periodic CSI-RS and / or IM resources and non-periodic CSI reporting are triggered jointly by transmitting DCI format 0-1; and / or semi-persistent CSI-RS and / or IM resources and semi-persistent CSI reporting can be activated independently.

[0076] In some embodiments, such as for multi-TRP NCJT, aperiodic CSI reports may be triggered to inform the network about channel conditions for each transmission assumption, since using periodic CSI-RS for TRPs in the coordination cluster constitutes significant overhead. In various embodiments, aperiodic CSI-RS and / or IM resources and aperiodic CSI reports can be jointly triggered by transmitting DCI format 0_1. DCI format 0_1 ​​contains a CSI request field (e.g., 0 to 6 bits). The non-zero request field points to a so-called aperiodic triggering state configured by RRC. An aperiodic triggering state can be defined as a list of up to 16 aperiodic CSI report settings identified by a CSI report setting ID, for which the UE simultaneously calculates the CSI and transmits it on a scheduled PUSCH transmission.

[0077] Figure 4Figure 400 illustrates one embodiment of a non-periodic triggering state that defines a list of CSI report settings. Specifically, Figure 400 includes DCI format 0_1 ​​402, CSI request code point 404, and non-periodic triggering state 2 406. Furthermore, non-periodic triggering state 2 includes ReportConfigID x 408, ReportConfigID y 410, and ReportConfigID z 412.

[0078] In some embodiments, if the CSI reporting settings are linked to aperiodic resource settings (e.g., may include multiple resource sets), the aperiodic NZP CSI-RS resource set for channel measurements, the aperiodic CSI-IM resource set, and / or the aperiodic NZP CSI-RS resource set for the IM for a given CSI reporting setting can be included in the aperiodic trigger state definition. For aperiodic NZP CSI-RS, quasi-co-located (“QCL”) sources can be configured in the aperiodic trigger state. The UE may assume that the resources used to calculate channels and interference can be processed using the same spatial filter (e.g., regarding “QCL-TypeD” quasi-co-located).

[0079] Figure 5 This is code example 500, illustrating an embodiment of a process that indicates resource sets and QCL information through its non-periodic triggering state.

[0080] Figure 6 This is a code sample 600 illustrating an embodiment of an RRC configuration including a non-zero power channel state information reference signal (“NZP-CSI-RS”) resource 602 and a CSI-IM resource 604.

[0081] Table 3 shows the uplink channels for CSI reporting based on the CSI codebook type.

[0082] Table 3: Uplink Channels for CSI Reporting Based on CSI Codebook Type

[0083] In some embodiments, for non-periodic CSI reporting, PUSCH-based reporting can be divided into two CSI parts: CSI Part 1 and CSI Part 2. This may be because the size of the CSI payload varies significantly, and therefore, a worst-case UCI payload size design could result in large overhead.

[0084] In various embodiments, CSI section 1 has a fixed payload size (e.g., can be decoded by gNB without prior information) and may include: 1) RI (if reported), CRI (if reported) and CQI for the first codeword; and / or 2) the number of non-zero wideband amplitude coefficients per layer for type II CSI feedback on PUSCH.

[0085] In some embodiments, CSI section 2 has a variable payload size that can be derived from the CSI parameters in CSI section 1, and may include PMI and CQI for the second codeword if RI > 4.

[0086] In one example, if three reporting settings x, y, and z are defined by the non-periodic trigger state indicated by DCI format 0_1, then the non-periodic CSI report for CSI section 2 can be as follows: Figure 7 The sorting shown.

[0087] Figure 7 This is a schematic block diagram 700 illustrating an embodiment of partial CSI omissions for PUSCH-based CSI. Diagram 700 includes ReportConfigID x 702, ReportConfigID y 704, and ReportConfigID z 706. Furthermore, diagram 700 includes a first report 708 corresponding to ReportConfigID x 702 (e.g., the number of requests to be reported), a second report 710 corresponding to ReportConfigID y 704 (e.g., the number of requests to be reported), and a third report 712 corresponding to ReportConfigID z 706 (e.g., the number of requests to be reported). Each of the first report 708, second report 710, and third report 712 includes CSI portion 1 720 and CSI portion 2 722. The order 723 of CSI portions 2 across reports is CSI portion 2 of the first report 724, CSI portion 2 of the second report 726, and CSI portion 2 of the third report 728. In addition, CSI Part 2 reports can generate Report 1 WB CSI 734, Report 2 WB CSI 736, Report 3 WB CSI 438, Report 1 Even SB CSI 740, Report 1 Odd SB CSI 742, Report 2 Even SB CSI 744, Report 2 Odd SB CSI 746, Report 3 Even SB CSI 748, and Report 3 Odd SB CSI 750.

[0088] In various embodiments, CSI reports can be prioritized based on: 1) temporal behavior and physical channel, where more dynamic reports take precedence over less dynamic reports and PUSCH takes precedence over PUCCH; 2) CSI content, where beam reports (e.g., L1-RSRP reports) take precedence over regular CSI reports; 3) the serving cell corresponding to the CSI (e.g., for CA operation) – CSIs corresponding to PCells take precedence over CSIs corresponding to Scells; and / or 4) report configuration identifiers (e.g., reportConfigID). In such embodiments, prioritization may not take into account some multi-TRP NCJT transmission assumptions as measured by the UE, potentially resulting in low spectral efficiency performance and potentially being given lower priority.

[0089] In various embodiments, one or more elements or features from different embodiments (e.g., CSI measurement results, feedback generation, and / or reporting) can be combined, which can reduce overall CSI feedback overhead.

[0090] In some embodiments, the following assumptions may be used: 1) The concept of “TRP” generally includes at least one of TRP, panel, communication (e.g., signaling and / or channel) associated with a control resource set (“CORESET”) pool, and / or communication associated with TCI states from transport configuration includes at least two TCI states; 2) The codebook type used is arbitrary – different codebook types (e.g., Type I and Type II codebooks) may be used flexibly unless otherwise stated; 3) At least aperiodic CSI reporting on PUSCH is supported – other CSI reporting configuration types, such as semi-persistent CSI reporting on PUSCH, may also be used; 4) At least multiple TRPs and / or panels with a single DCI may be used – multiple TRPs and / or panels with multiple DCIs may also be used; and / or 5) At least multiple TRPs and / or panels with spatial division multiplexing (“SDM”) may be used.

[0091] In the first embodiment, the network may indicate to the UE the need for multiple TRPs and / or panel CSI feedback via: 1) introducing new Radio Resource Control (“RRC”) parameters (e.g., NTRP or CSIGroup) – based on which there may be multiple CSI reports, CSI sub-reports, or CSI components for a single CSI report configuration – this parameter can be incorporated into the CSI report priority ordering; 2) introducing new report quantities (e.g., for CSI reports involving mTRPs) – each report may correspond to a report setting; 3) QCL relationships can be obtained from RSs (e.g., non-periodic CSI-RS). The following parameters are implied: 4) One or more code points involving different DCI trigger states can be assigned to a multi-TRP setting for CSI feedback - each state (e.g., including one or more CSI reporting settings) can be triggered by the network and configured with RRC; 5) Multi-TRP can be implied from the higher-level parameter CodebookType; 6) Multi-TRP can be implied from the higher-level parameter CodebookConfig; and / or 7) Introducing a new RRC parameter groupBasedCSIReporting (e.g., in CSI reporting configuration) - this parameter can implement multiple TRPs including a set of... Multiple TRPs and / or panel CSI feedback for individual CSI reports, sub-CSI reports, or CSI reports of CSI components.

[0092] In various embodiments, the following CSI report structure is assumed, wherein, without loss of generality, all CSI reports are either aperiodic (y=0) and do not carry L1-RSRP or L1-SINR info (k=1), N TRP =3 and M s =2. For TRP t, the report corresponds to rank v. c The codebook information, wherein each TRP t layer is partitioned into layers with v ’ t and v ” t The layer has two groups, where v t =v ’ t + v ” t CSI Report 1: Including the first v intended for TRP 1 ’ Information corresponding to Layer 1. CSI Report 2: Includes information related to the final v intended for TRP 1. ” Information corresponding to Layer 1. CSI Report 3: Includes information related to the first v intended for TRP 2. ’ Information corresponding to Layer 2. CSI Report 4: Includes information related to the final v intended for TRP 2. ”Information corresponding to Layer 2. CSI Report 5: Includes information related to the first v intended for TRP 3. ’ Information corresponding to Layer 3. CSI Report 6: Includes information related to the final v intended for TRP 3. ” Information corresponding to the three layers.

[0093] In the second embodiment, the following subset of CSI report assumptions can be considered: 1) a single TRP transmission, wherein the codebook at TRP t is based on a CSI report with indices 2(t-1)+1 and 2(t-1)+2; and 2) involving TRP t and The joint transmission, the codebook at TRP t can be based on a CSI report with index 2(t-1)+1, while in TRP The codebook at that location will be based on an index. The CSI report, in which It is possible that the order of the contents in the CSI reports with indices 2(t-1)+1 and 2(t-1)+2 may be interchanged.

[0094] In some embodiments, each CSI report can be triggered via a CSI report setting. Each CSI report setting has a corresponding set of one or more CSI resource settings. Because a CSI report with index 2(t-1)+1 is involved in a multi-TRP / panel transmission, the codebook parameters can depend on interference from other TRPs co-transmitted. Therefore, a CSI report setting corresponding to a given CSI report with index 2(t-1)+1 can be configured with multiple CSI resource settings, wherein a first CSI resource setting can indicate a non-zero power (“NZP”) CSI-RS resource set for channel measurements and subsequent CSI resource settings can indicate NZP CSI-RS and / or CSI-IM for interference measurements. The information in the corresponding CSI report may be susceptible to inter-layer interference from different TRPs and can be designed based on both channel and interference measurements. A CSI report with index 2(t-1)+2 may be triggered only in the case of a single TRP transmission. Therefore, in cases where the report may only measure the channel, triggering a single CSI resource setting for the corresponding CSI report setting may be sufficient.

[0095] In the third embodiment, different CSI resource settings can be defined according to different CSI report settings as follows: 1) For a CSI report setting corresponding to a CSI report with index 2(t-1)+1 (e.g., which includes PMIs for the first set of layers for TRP t, which can be triggered with respect to multiple TRP transmissions), more than one CSI resource setting is triggered; and 2) For a CSI report setting corresponding to a CSI report with index 2(t-1)+2 (e.g., which includes PMIs for the last set of layers for TRP t, which can be triggered with respect to a single TRP transmission), more than one CSI resource setting is triggered.

[0096] In various embodiments, each codebook may contain a single CSI report. If, in one example, the CSI report is reconstructed as follows, where, without loss of generality, all CSI reports are either aperiodic (y=0) and do not carry L1-RSRP or L1-SINR information (k=1), N cells =3 and M=2. The report corresponds to rank v. c The codebook contains TRP t information, where each TRP t layer is partitioned into layers with v. ’ t and v ” t The layer has two groups, where v t = v ’ t + v ” t CSI report t: Information corresponding to TRP t. CSI report section 1: Layer-common info + three triplet values ​​(v ’ t , v ” t , v t The two indicators in ) . CSI Report Section 2 Group 0: The remainder of the layer public information. CSI Report Section 2 Group 1: With layer v ’ t Related information. CSI report section 2, group 2: with layer v ” t Related information. In some embodiments, if the layer decomposition is predefined, for example, Then it is not necessary to require the three triplet values ​​(v) ’ t , v ” t , v t The two layer indicators in ) can be used. Additionally, the size indicators for different groups in CSI Report Section 2 can be used.

[0097] In the fourth embodiment, for multiple TRP transmissions, a report for each TRP can be defined, wherein: 1) the PMI information for each layer included in CSI Part 2 Group 1 can be based on one or more of NZP CSI-RS for CMR, NZP CSI-RS for Interference Measurement Resources (“IMR”), and CSI-IM; 2) the PMI information for each layer included in CSI Part 2 Group 2 can be based on one or more of NZP CSI-RS and CSI-IM for CMR. It is understood that the order of the contents in CSI Part 2 Group 1 and CSI Part 2 Group 2 is not excluded.

[0098] In some embodiments, a codeword-to-TRP mapping may exist. In various embodiments, under a single DCI with multiple TRPs, whenever two TRPs t, t Complex situations may arise when joint transmissions between layers will occupy more than one codeword. In such embodiments, it may be advantageous to transmit transmission sequences corresponding to layers from one TRP using dedicated codewords, while layers corresponding to another TRP are transmitted using different codewords. This can be applied to all layers corresponding to a TRP, or to the first and / or last set of layers for each TRP. In some embodiments, signal sequences corresponding to different layers are multiplexed into one codeword, provided the total number of layers does not exceed 4. Whenever the number of layers exceeds 4 (e.g., but not exceeding 8 layers), two codewords are used, where the first codeword is assigned... One layer, and the remaining Each layer is assigned by the second codeword, where v all This is the total number of layers [6]. Therefore, the difference between the number of layers processed by each codeword is no more than one. In view of this, in order to facilitate one-to-one codeword to TRP mapping, at least for the first set of layers for each TRP t, the fifth embodiment can be used.

[0099] In the fifth embodiment, for a multi-TRP transmission with a single DCI, the number of layers per TRP may be constrained such that: Where c = 0 or 1.

[0100] Constraints can be applied to the first set of layers, the second set of layers, or the total number of layers in each TRP t. Furthermore, the number of layers in the first set of layers within each TRP can be constrained to... , where δ is the maximum number of layers multiplexed into a codeword, for example, δ=4.

[0101] In various embodiments, changes to the CSI priority ordering may exist. In some embodiments, parameters may be used in the CSI report index in the PUSCH, which represents the number of TRPs or the number of CSI report groups per cell, as found in the sixth embodiment.

[0102] In the sixth embodiment, there may be a change in the priority order of CSI reports: , where N g This represents the total number of CSI reporting groups or TRPs for each cell, and g is a value of 0, 1, ..., N. g The index corresponding to -1. In some embodiments, the priority function can be as follows: It should be noted that parameter names other than the number of CSI report groups or the number of TRPs per cell are not excluded. In various embodiments, CSI reports may include parameters with values ​​0, 1, ..., N. g A set of N corresponding to the index of -1 g Individual CSI reports or CSI components.

[0103] In some embodiments, a joint design across CSI reports may exist. In one embodiment, a CSI report may be configured with a codebook type belonging to Type II. In such an embodiment, layer public information related to the codebook of TRP t may be placed in CSI report 2(t-1)+1.

[0104] In the seventh embodiment, the layer common information of the codebook corresponding to TRP t (e.g., indicators without layer subscripts, such as selected spatial beam index or tap window information) can be placed only in CSI report 2(t-1)+1.

[0105] In various embodiments, layer common information associated with the codebooks of different TRPs with joint transmissions can be placed only in CSI report 1. In some embodiments, a beam bitmap bt of length 2L indicating the subset of spatial beams selected for each TRP t can be included in a CSI report with index 2(t-1)+1, where nnz(bt) = Lt, and nnz(x) indicates the number of entries with non-zero values ​​in any vector x. L1+L2+L3≥2L (e.g., different TRPs may reuse the same beams). Thus, the number of beams per cell c can be reduced to Lt≤2L and the CSI report size can be reduced thereby (e.g., fewer bits corresponding to the coefficient bitmap for each layer can be reported). In some embodiments, bitmaps can be used to indicate the subset of selected beams for each CSI report with indices 2(t-1)+1 and 2(t-1)+2 (e.g., one bitmap for each report). As will be understood, other methods of reporting subsets of selected beams are not excluded (e.g., reporting combined values ​​instead of bitmaps).

[0106] In the eighth embodiment, for a Type II codebook or any derivative thereof (e.g., an eType-II codebook), a Type II port selection codebook, or an eType-II port selection codebook, only the spatial beam selected by TRP t for CSI report 2(t-1)+1 can be reported. In such an embodiment, a beam bitmap of length 2L bt in CSI report 2(t-1)+1 can be reported, where nnz(bt) = Lt, where different TRPs can reuse the same beam. Only the coefficients of the Lt beam corresponding to TRP t can be reported.

[0107] In the ninth embodiment, for the Type II codebook or any derivative thereof (e.g., the eType-II codebook), the Type II port selection codebook, or the eType-II port selection codebook, a bitmap in one or more of the CSI reports 2(t-1)+1 and 2(t-1)+2 for TRP t can be reported, wherein the bitmap indicates the index of the space beam used in the CSI report.

[0108] In some embodiments, one issue with CQI reporting is handling different CSI reporting configurations. For ease of explanation, for any TRP t, t Let v't+v't ≤4, and for all TRPs, vt≤4 (e.g., even for joint transports, a codebook is used). In some embodiments, wideband (“WB”) CQI may be used.

[0109] In various embodiments, the WB CQI value q't (e.g., 4 bits) can be reported in CSI Report 2(t-1)+1, indicating the CQI of a TRP t transmission with rank v't. In some embodiments, the differential WB CQI value q''t (e.g., 2 bits) can be reported in CSI Report 2(t-1)+2, indicating the CQI index offset value of a single TRP t transmission with full rank vt, where the offset value is relative to q't. In some embodiments, the CQI values ​​in CSI Report 2(t-1)+1 and CSI Report 2(t-1)+2 can be different. Report the differential WB CQI value q't,t, of either -1)+1 or both. (For example, 2 bits), indicating the sequence of bits from which rank v't and v't are respectively derived. Two TRPs t, t The CQI index offset under joint transmission. The offset value is relative to any function qJTt,t. =f(q't,,q't For example, f(a,,b) = max(a,b) or f(a,,b) = , or f(a,,b)= .

[0110] In some embodiments, the subband (“SB”) CQI value for each CQI subband index w can be reported in a similar manner (e.g., reporting the subband differential CQI value p''t(w) with respect to the function f 2(q't, q''t)) for the full-rank transmission vt of TRP t to be reported in CSI report 2(t-1)+2. In some embodiments, the subband differential CQI value pJTt,t (w) can be about CSI report 2(t-1)+1, CSI report 2(t) -1)+1, or qJTt,t reported by either of the two. Defined.

[0111] In the tenth embodiment, WB CQI q't and the difference CQI q''t, qJTt,t And p''t(w) and pJTt,t (w) Can be reported across CSI reports.

[0112] In various embodiments, if there are multiple DCI multiple TRPs where vt ≤ 4, the codeword-to-TRP mapping can be one-to-one (e.g., the layer corresponding to TRP t is exclusively mapped to a codeword with a corresponding WB CQI level). As can be understood, WB differential CQI for joint transmission can be reported to address SINR degradation (e.g., and possible CQI index decline). If so, qJTt,t ≠ qJTt ,t, where qJTt,t Indication due to TRP t The CQI level shift of the codeword associated with TRP t caused by interference. Therefore, qJTt,t It can be reported in CSI report 2(t -1)+1, while qJTt ,t can be reported in CSI 2(t) The report is in -1)+1. This also applies to pJTt,t. (w), pJTt ,t(w). As can be understood, the same behavior applies whenever the codeword-to-TRP mapping is one-to-one, even under a single DCI with multiple TRPs.

[0113] In the eleventh embodiment, for multiple DCI multiple TRPs or in a single DCI multiple TRP with a one-to-one codeword-to-TRP mapping, qJTt,t ≠qJTt ,t, and pJTt,t (w)≠ pJTt ,t(w) and therefore qJTt,t pJTt,t (w) may need to be reported in CSI report 2(t -1)+1, while qJTt ,t、pJTt t(w) can be reported in CSI 2(t) -1)+1 in the report.

[0114] As can be understood, in order to incorporate the WB differential CQI, a type of CQI format indicator can be used to accommodate the differential WB CQI value (e.g., an additional value for the parameter cqi-FormatIndicator - cqi-FormatIndicator="DiffwidebandCQI" can be introduced). In some embodiments, the additional CQI format indicator can be used to reflect both differential WB and SB reports (e.g., cqi-FormatIndicator="DiffsubbandCQI").

[0115] In the twelfth embodiment, in addition to the current values ​​“widebandCQI” and “subbandCQI”, the additional value for the parameter cqi-FormatIndicator can be used to accommodate WB differential CQI reports (e.g., cqi-FormatIndicator="DiffwidebandCQI") and possible SB differential CQI reports (e.g., cqi-FormatIndicator="DiffsubbandCQI").

[0116] In some embodiments, hypothesis reduction may be possible. Such embodiments can help improve the efficiency of CSI reporting by using CQI information to reduce the aggregate size of CSI reports generated by multiple TRP transmissions. Given that the UE has sufficient knowledge of the channels from all TRPs, it is in a better position to select the best hypothesis (e.g., the best transmission scheme based on some metric). However, the UE's individual selection of the best hypothesis may be detrimental to the network due to other considerations on the network side. For example, one way to reduce the overall CSI feedback overhead is for the UE to report only CSI feedback related to a subset of the hypotheses. For example, suppose the UE could only report CSI feedback related to a single transmission of TRP 1, or a joint transmission between TRPs 1 and 2, or a joint transmission between TRPs 2 and 3 (e.g., a total of 3 hypotheses). If so, the UE could only report CSI reports 1, 2, 3, and 5. The UE might then have to report the selected hypotheses to the network to avoid ambiguity. While this approach can reduce the overall CSI feedback overhead by about one-third, it deprives the network of the opportunity to select hypotheses based on network traffic or other resource allocation considerations. This can be called "hard channel hypothesis reduction".

[0117] In various embodiments, a balance can be struck between hard hypothesis reduction and full CSI feedback reporting. In such embodiments, explicit signaling from the UE to the network for selected hypotheses may not be necessary. This can be referred to as “soft channel hypothesis reduction” and can be based on omitting a subset of CSI reports corresponding to unfavorable hypotheses based solely on the reported CQI values. For example, this embodiment could be as follows: 1) dividing CSI reports into two groups based on CQI values ​​corresponding to different hypotheses – the threshold may depend on other parameters (e.g., the rank of each report); 2) reporting CSI reports that meet the threshold test in full; 3) reporting CSI reports that do not meet the threshold test in part – for example, a) only feeding back CSI part 1 of the CSI report; b) feeding back CSI part 1 + CSI part 2 group 0 of the CSI report; c) feeding back CSI part 1 + CSI part 2 group 0 + CSI part 2 group 1 of the CSI report; 4) assuming the existence of K CSI reports corresponding to H-channel and / or interference hypotheses – the classification of CSI reports into the two groups can be based on one (or a combination of) the following: a) full feedback A CSI report, and partial feedback One CSI report, of which a) Fixed, rule-based, or RRC-configured; b) Complete feedback of the components of the channel and / or interference assumptions. The CSI report, and partially feedback the rest of the CSI report, including It is fixed, set by rules, or configured by RRC; c) It fully reports the CSI report of the constituent channel and / or interference assumptions whose effective WB CQI index is greater than or equal to the threshold γ, while partially reporting the rest of the CSI report. Note that the ceiling operator... You can use floor or round Operator substitution.

[0118] In some embodiments, CSI report classification can be divided into two groups and can be indicated by the network using additional fields corresponding to the CSI trigger state (e.g., CSIAperiodicTriggerState), implicitly using predefined rules regarding the CSI report ID, or by introducing higher-level parameters (e.g., RRC parameters). Other methods by which the network implements CSI report classification are not excluded in various embodiments.

[0119] In the thirteenth embodiment, K CSI reports can be classified into two potentially disjoint groups, each of size K1 and K2, where K1 + K2 = K. CSI reports belonging to the first group are reported in full, while CSI reports belonging to the second group are reported partially or otherwise omitted entirely. CSI report classification can be UE-triggered, based on the rank of each CSI report, the value of the report's CQI index, or both. In some embodiments, CSI report classification can be network-triggered, based on the CSI triggering state reported to the user, the CSI report ID, or both. As will be understood, other bases that may contribute to the CSI report classification process are not excluded.

[0120] In some embodiments, common rotation parameters may exist. In various embodiments, the CQI value of a report may correspond to a precoding matrix (e.g., a codebook) of different layers in more than one CSI report. A series of reports can be generated such that a report can be combined with only one previous report. However, a report can be combined with any subsequent CSI report. Consider the following example: given a series of CSI reports, if only the following CSI report combination pairs (1,2), (2,3), (1,4), (2,5), (3,6) are allowed, we can see that CSI report 2 or CSI report 3 can be combined with only one previous report (e.g., CSI report 1 and CSI report 2, respectively). However, CSI report 2 can be combined with more than one subsequent report (e.g., CSI report 3 and CSI report 5). In this case, assuming that the report is only combined with previous CSI reports in the list and its corresponding precoding vector is optimized accordingly, the UE first searches the precoding matrix of a given CSI report. It should be noted that it is assumed that its corresponding layer may not be combined with any layer corresponding to another report, the first report has no previous report, and therefore it optimizes the corresponding vector of the precoding matrix.

[0121] Figure 8 This is a schematic block diagram 800 illustrating an embodiment where two TRPs jointly transmit data to a user equipment using a single codeword. Specifically, schematic block diagram 800 includes a first TRP 802, a second TRP 804, and a UE 806. Precoding matrix P A1 808, P A2 810, P r A1 812 and P r A2 814 was launched as shown in the figure.

[0122] Specifically, the precoding matrix P is indicated in CSI Report 1. A1 It is not bound by the precoding matrix of any other report. The precoding matrix P in CSI Report 3... A2 It can be designed to be as close as possible to P A1 The "orthogonality" constraint can lead to qualitative differences between the layers corresponding to CSI Report 1 and CSI Report 3. If layers across the two reports are multiplexed into a single codeword, performance degradation may occur. To minimize the qualitative performance differences between the layers corresponding to the two CSI reports and maximize the CQI level under joint transmission, a rotation transformation is preferable. , making and ,in It is a diagonal matrix of the following form

[0123] Where kron(A,B) is the Kronecker product of two matrices A and B, exp(α) = e α and It is a diagonal matrix whose diagonal elements are a1, …, a2. n This might suggest that in P A2 During the reporting period, the optimal rotation factors θ1 and θ2 can be reported. This θ1 and θ2 report can be similar to l i and m i However, they have potentially different value ranges. The same twitch factor can be applied to all layers of this CSI report and the previous CSI reports it is combined with, regardless of whether these CSI reports belong to the same TRP or different TRPs. Because there is only one previous report, a given CSI report can be combined with it, and there can be no confusion about what twitch factor is used in any joint transport combination.

[0124] As can be understood, if two CSI reports belong to the same TRP, one way this rotation could be implied is that the rotation factor in one CSI report overrides the rotation factor in the previous CSI report (e.g., for the eType-II codebook). For example, field i in CSI report 2(t-1)+2 1,1 It can cover field i corresponding to CSI report 2(t-1)+2 1,1 As can be understood, this also applies to the beam indicator field i. 1，2 Furthermore, the possibility of cross-coverage of the rotation factor field or beam indicator field in CSI reports corresponding to different TRPs cannot be ruled out.

[0125] In the fourteenth embodiment, the reported value of a parameter corresponding to one CSI report can be modified based on the reported value of another CSI report. For example, a rotation factor, spatial beamset index, or both reported in one CSI report can be applied to the codebook corresponding to another CSI report (e.g., a CSI report with a smaller index value). In such an embodiment, this can be done by further rotating a subset of the codebook parameters in one CSI report based on the rotation factor and / or spatial beamset index reported in the other CSI report, or by overwriting the rotation factor and / or spatial beamset index in one CSI report with the rotation factor reported in the other CSI report.

[0126] In some embodiments, a simplified CSI report multiplexing may exist for the two TRP PDSCH transmissions of the NCJT. In various embodiments, the UE receives an uplink scheduling DCI with a non-back-off format of 0_1. The DCI indicates the uplink time and frequency resources on which the device should transmit the PUSCH. The DCI contains a non-zero CSI request (e.g., 0 to 6 bits) for requesting a non-periodic CSI report on the PUSCH.

[0127] In various embodiments, the CSI request is directed to a non-periodic triggering state "m" configured with the RRC parameter enable_depend_reporting set to true. In such an embodiment, the non-periodic triggering state m contains "N" CSI-ReportConfigs, whose reportConfigIds are respectively m1, m2, ..., m N The CSI-ReportConfig m1 sets its NZP-CSI-RS resource set for channel measurements with a PDCCH QCL (e.g., indicating the primary transport TRP) carrying DCI format 0_1. This TCI state is represented by Q1. With enable_depend_reporting = true, the CSI report associated with CSI-ReportConfig m1 will be represented as Report 1. Report 1 has the highest priority among the N reports. ReportConfig m2, ..., m N The NZP-CSI-RS resource set is configured for channel measurements, and its TCI states are Q2, ..., Q. N ≠ Q1 indicates, for example (an assistant TRP that may be used in both TRP NCJTs together with the main TRP). The corresponding CSI report will be indicated as Report 2, ..., Report N.

[0128] In some embodiments, each report carries a (r) of each report i. i P i CQI i The report represents the rank information (“RI”), precoder information (“PMI”), and channel quality indicator (“CQI”). Report 1 is calculated under the following assumptions: Report 1 is calculated under assumption H1: single DCI single PDSCH transmission with a TCI code point having a single TCI state Q1. With enable_depend_reporting = true, the UE calculates Report 2,…,N under the following assumptions. i The following calculation report i (i = 2, ..., N) contains TCI code points (Q1, Q...). iThe single DCI NCJT transmission. Furthermore, the NZP CSI-RS resource for inter-layer interference measurements sets the QCL information to Q1.

[0129] Because reports 2, ..., N assume NCJT transmission, the UE reports (r2, ..., r N The sum of reported UE ranks in the case of NCJT transmissions will be ≤ 4. Based on this assumption, P2,…, P are calculated. N and CQI2, …, CQI N For i = 2,..,N, CSI reports i(r i , P i CQI i ) can be interpreted as the rank r from each TRP i Transmission, P i It is in the TCI state Q i The precoder used at TRP, and CQI i It is used to assume H i The expected modulation and coding rate of TB.

[0130] Finally, the UE sorts the transmission assumptions (H) in descending order of spectral efficiency performance. i The priority of each report i (i = 2, ..., N) is determined by sorting the reports i (i = 2, ..., N) during reuse on the PUSCH resource. This priority reordering can override other priorities.

[0131] In some embodiments, the UE can obtain information from ReportConfig m1, m2, …, m N The transmission hypothesis H is implicitly determined from the QCL information of the NZP-CSI-RS resource set and the rank constraints of the corresponding CSI-RS. i (i = 2,…,N) (e.g., instead of using explicit RRC signaling). In some embodiments, r i and CQI i This can be interpreted as a difference between r1 and CQI1. In various embodiments, the non-precoded NZP-CSI-RS transmitted from the main TRP can be combined with precoder information P1 for inter-layer interference measurement.

[0132] In some embodiments, the UE bases the transmission assumption (H) on a predefined performance metric (e.g., L1-RSRP). iThe reports (i = 2, ..., N) are sorted to determine the priority rank of each report. In various embodiments, concise, aperiodic CSI reporting on the PUSCH for multi-TRPNCJT transmissions can be implemented, where the number of transmission hypotheses increases only linearly with the number of transmission points.

[0133] In some embodiments, the UE first calculates CSI Report 1 under the following transmission assumptions: a single TRP transmission from a TRP with TCI state Q1 and a reference signal QCL for the Physical Downlink Control Channel (“PDCCH”) carrying DCI format 0_1. Subsequently, the UE calculates the remaining NCJT transmission assumptions for the TCI code points (Q1, Qi, i = 2,…,N) under different assumptions depending on (r1, P1, CQI1). In various embodiments, Report 1 (e.g., the single TRP transmission assumption) may have the highest priority, followed by reports in descending order of spectral efficiency performance, which may cover another priority order. This prioritization can be related to multiple TRP transmissions and can achieve higher performance.

[0134] In some embodiments, the CSI reporting configuration for CSI feedback (e.g., CQI, PMI, RI, CRI, and / or layer index (“LI”)) includes a channel measurement CSI resource set within a CSI resource setting (e.g., CSI-ResourceConfig) for channel measurements, a CSI-IM resource set within a CSI resource setting for ZP interference measurements, and / or an NZP CSI-RS interference CSI resource set within a CSI resource setting for NZP CSI-RS interference measurements. In various embodiments, the RRC parameter groupBasedCSIReporting (e.g., in the CSI reporting configuration) can enable and / or configure multi-TRP and / or panel CSI feedback with CSI reports comprising a set of N_g CSI reports or sub-CSI reports or CSI components. The channel measurement CSI resource set may include K = NTRP NZP CSI-RS resources with NZP CSI-RS resource i, including NZP CSI-RS resource i associated with TRP i for multi-port CSI-RS. Similarly, a CSI-IM resource set may include K = NTRP CSI-IM resources, where CSI-IM resource i is associated with TRP i. In one example, each CSI-RS resource used for channel measurement is associated with a resource-by-resource CSI-IM resource by the ordering of CSI-RS and CSI-IM resources in the corresponding resource set, where the number of CSI-RS resources used for channel measurement is equal to the number of CSI-IM resources. In another example, a single CSI-IM resource may be configured with and associated with each CSI-RS resource used for channel measurement (e.g., and each TRP). The NZP CSI-RS resource associated with TRP i for channel measurement and the CSI-IM resource associated with interference measurement may be related to "QCL-TypeD" QCL. The NZP CSI resource set for interference measurement may include K = NTRP NZP CSI-RS interference IMR resources, including NZP CSI-RS resource i of multi-port interference CSI-RS associated with TRP i. The NZP CSI-RS resources associated with TRP i for channel measurements and the NZP CSI-RS IMR resources for interference measurements can be related to “QCL-TypeD” QCL.

[0135] In some embodiments, a single TRP CSI report, sub-CSI report, and / or CSI component may be based on the channel CSI-RS channel measurement resource (“CMR”), CSI-IM, and / or NZP CSI-RS IMR associated with the TRP. In various embodiments, in the case of a single CSI-IM resource, channel CMRs of other TRPs may be included as additional inter-layer interference. For joint transmission CSI reports, sub-CSI reports, and / or CSI components involving TRPs i and j, the channel measurement may be based on the CMRs of TRPs i and j, wherein the interference is based on the associated CSI-IM and / or the NZP CSI-RS IMR associated with TRPs i and j. In some embodiments, channel CMRs of other TRPs (e.g., excluding TRPs i and j) may be included as additional inter-layer interference. In some embodiments, the number of TRPs to which CSI reporting is performed may correspond to the number of NZP CSI-RS resources in the channel measurement CSI resource set. In various embodiments, the number of TRPs in the joint transmission assumption may be limited to 2.

[0136] In some embodiments, the terms antenna, panel, and antenna panel are used interchangeably. An antenna panel can be hardware for transmitting and / or receiving radio signals at frequencies below 6 GHz (e.g., frequency range 1 (“FR1”) 0) or above 6 GHz (e.g., frequency range 2 (“FR2”) or millimeter waves (“mmWave”)). In some embodiments, the antenna panel may include an array of antenna elements. Each antenna element may be connected to hardware, such as a phase shifter, which enables a control module to apply spatial parameters to the transmission and / or reception of signals. The resulting radiation pattern may be referred to as a beam, which may or may not be single-peaked and may allow the device to amplify signals transmitted or received from a spatial direction.

[0137] In various embodiments, the antenna panels may or may not be virtualized as antenna ports. The antenna panels can be connected to the baseband processing module via radio frequency (“RF”) chains for each transmission (e.g., outgoing) and reception (e.g., incoming) direction. The capabilities of the device may or may not be transparent to other devices in terms of the number of antenna panels, their duplex capabilities, their beamforming capabilities, etc. In some embodiments, capability information may be transmitted via signaling, or capability information may be provided to the device if signaling is not required. If the information is available to other devices, it can be used for signaling or local decision-making.

[0138] In some embodiments, the UE antenna panel can be a physical or logical antenna array, comprising a collection of antenna elements or antenna ports sharing a common or significant portion of the radio frequency (“RF”) chain (e.g., in-phase and / or quadrature (“I / Q”) modulators, analog-to-digital (“A / D”) converters, local oscillators, phase-shift networks). The UE antenna panel or UE panel can be a logical entity having physical UE antennas mapped to logical entities. The mapping from physical UE antennas to logical entities may depend on the UE implementation. Communication (e.g., receiving or transmitting) on ​​at least a subset of antenna elements or antenna ports (e.g., active elements) actively used to radiate energy from the antenna panel may require biasing or energizing the RF chain, resulting in current consumption or power dissipation in the UE associated with the antenna panel (e.g., including power dissipation of power amplifiers and / or low-noise amplifiers (“LNAs”) associated with the antenna elements or antenna ports). As used herein, the phrase “actively used to radiate energy” is not intended to be limited to transmitting functions but also covers receiving functions. Therefore, antenna elements actively used for radiating energy can be coupled simultaneously or sequentially to a transmitter to transmit radio frequency energy or to a receiver to receive radio frequency energy, or typically to a transceiver to perform their intended functionality. Communication on the active elements of the antenna panel enables the generation of radiation patterns or beams.

[0139] In some embodiments, depending on the UE's own implementation, the "UE panel" may have at least one of the following functionalities as an antenna group unit independently controlling its transmit ("TX") beam, an antenna group unit independently controlling its transmit power, and / or an antenna group unit independently controlling its transmission timing. The "UE panel" may be transparent to the gNB. Under certain conditions, the gNB or network may assume that the mapping between the UE's physical antennas and the logical entity "UE panel" is unlikely to change. For example, the conditions may include until the next update or report from the UE, or the duration under which the gNB assumes the mapping will not change. The UE may report its UE capabilities regarding the "UE panel" to the gNB or network. UE capabilities may include at least the number of "UE panels". In one embodiment, the UE may support UL transmission from one beam within the panel. For multiple panels, more than one beam (e.g., one beam per panel) may be used for UL transmission. In another embodiment, more than one beam per panel may be supported and / or used for UL transmission.

[0140] In some embodiments, an antenna port can be defined such that the channel transmitting a symbol on the same antenna port can be inferred from the channel transmitting another symbol on the same antenna port.

[0141] In some embodiments, two antenna ports are referred to as quasi-co-located (“QCL”) if the large-scale properties of the channel transmitting symbols on one antenna port can be inferred from the channel transmitting symbols on the other antenna port. Large-scale properties may include one or more of delay spread, Doppler spread, Doppler shift, average gain, average delay, and / or spatial reception (“RX”) parameters. Two antenna ports may be quasi-co-located with respect to a subset of the large-scale properties, and different subsets of the large-scale properties may be indicated by the QCL type. For example, qcl-Type may take one of the following values: 1) “QCL-TypeA”: {Doppler shift, Doppler spread, average delay, delay spread}; 2) “QCL-TypeB”: {Doppler shift, Doppler spread}; 3) “QCL-TypeC”: {Doppler shift, average delay}; 4) “QCL-TypeD”: {spatial Rx parameter}.

[0142] In various embodiments, the spatial RX parameters may include one or more of the following: angle of arrival (“AoA”), principal AoA, average AoA, angular spread, power angular spectrum of AoA (“PAS”), average departure angle (“AoD”), PAS of AoD, transmit and / or receive channel correlation, transmit and / or receive beamforming and / or spatial channel correlation.

[0143] In some embodiments, an "antenna port" may be a logical port that corresponds to a beam (e.g., generated by beamforming) or a physical antenna on the device. In some embodiments, a physical antenna may be directly mapped to a single antenna port, where the antenna port corresponds to an actual physical antenna. In various embodiments, a set of physical antennas, a subset of physical antennas, an antenna array, an antenna subarray, or an antenna array may be mapped to one or more antenna ports after complex weights and / or cyclic delays are applied to the signal on each physical antenna. A set of physical antennas may have antennas from a single module or panel or from multiple modules or panels. Weights may be fixed, as in antenna virtualization schemes such as cyclic delay diversity ("CDD"). The process for deriving antenna ports from physical antennas may be device-specific and transparent to other devices.

[0144] In various embodiments, the Transport Configuration Indicator (“TCI”) state associated with the target transmission can indicate a quasi-co-location relationship between the target transmission (e.g., the target RS at the demodulation reference signal (“DM-RS”) port of the target transmission during the transmission timing) and the source reference signal (e.g., synchronization block (“SSB”), channel state information reference signal (“CSI-RS”), and / or probe reference signal (“SRS”)) with respect to the quasi-co-location type parameters indicated in the corresponding TCI state. The device can receive configurations for multiple Transport Configuration Indicator states for the serving cell for transmission on the serving cell.

[0145] In some embodiments, spatial relation information associated with the target transmission can indicate the spatial arrangement between the target transmission and a reference RS (e.g., SSB, CSI-RS, and / or SRS). For example, the UE can transmit the target transmission using the same spatial domain filter used for receiving reference RSs (e.g., DL RSs such as SSBs and / or CSI-RSs). In another example, the UE can transmit the target transmission using the same spatial domain transmission filter used for transmitting RSs (e.g., UL RSs such as SRSs). The UE can receive a configuration of multiple spatial relation information configurations for the serving cell for transmission on the serving cell.

[0146] Figure 9 This is a flowchart illustrating one embodiment of a method 900 for reporting channel state information. In some embodiments, method 900 is executed by a device such as remote unit 102. In some embodiments, method 900 may be executed by a processor that executes program code, such as a microcontroller, microprocessor, CPU, GPU, auxiliary processing unit, FPGA, etc.

[0147] In various embodiments, method 900 includes receiving 902 channel state information report configuration information, wherein the channel state information report configuration information includes: information indicating the configuration of one or more channel state information reference signal resources associated with one or more channel state information reference signal resource sets for channel measurement, interference measurement, or a combination thereof; and information indicating the use of channel state information feedback corresponding to a plurality of points, wherein each of the plurality of points is associated with a non-zero power channel state information reference signal resource for channel measurement in the channel state information reference signal resource set, and at least one of the plurality of points is associated with one or more channel state information interference management resources for zero power interference measurement. In some embodiments, method 900 includes performing 904 channel measurement using the channel state information reference signal resource set. In various embodiments, method 900 includes generating 906 a channel state information report set based on the channel state information report configuration information.

[0148] In some embodiments, each of the plurality of points corresponds to a transmit and receive point or a panel of transmit and receive points. In some embodiments, information indicating the use of channel state information feedback for the plurality of points includes: radio resource control parameters within a channel state information reporting configuration; the number of channel state information reports within a channel state information reporting configuration; quasi-co-location relationships relating to one or more channel state information reference signal resources within one or more channel state information reference signal resource sets; code points indicating different downlink control information states; codebook type parameters; codebook configuration parameters; transmission configuration indicator code points from a transmission configuration including at least two transmission configuration indicator states; indications of spatial multiplexing schemes across the plurality of points; or combinations thereof.

[0149] In various embodiments, the channel state information report in the channel state information report set comprises two parts, and the second part of the two parts of the channel state information report comprises two precoder matrix indicators. In one embodiment, a first precoder matrix indicator of the two precoder matrix indicators is associated with a non-zero power channel state information reference signal resource for channel measurement resources, a non-zero power channel state information reference signal resource for interference measurement resources, a channel state information interference management resource, or some combination thereof, and a second precoder matrix indicator of the two precoder matrix indicators is associated with a non-zero power channel state information reference signal for channel measurement resources, channel state information interference management, or a combination thereof.

[0150] In some embodiments, the absolute difference between the number of layers corresponding to the first precoder matrix indicator and the number of layers corresponding to the second precoder matrix indicator is no greater than one. In some embodiments, method 900 further includes transmitting a set of channel state information reports in order based on a channel state information priority function.

[0151] In various embodiments, the channel state information priority function is calculated using a formula, wherein channel state information reports with lower formula values ​​have higher priority: ,in, It is the total number of channel state information report groups. g It is the value from 0 to Corresponding index, s It is a channel state information configuration index. This is the maximum number of channel state information reports configured. c It is a cell index. It refers to the number of residential communities served. k The channel state information report for carrying the received power of the Layer 1 reference signal or the Layer 1 signal-to-noise ratio is 0, otherwise it is 1, and yThe value is 0 for non-periodic reports, 1 for semi-persistent reports transmitted on the physical uplink shared channel, 2 for semi-persistent reports transmitted on the physical uplink control channel, or 3 for periodic reports.

[0152] In one embodiment, a channel state information report corresponding to a single-point transmission in the channel state information report set has a higher priority than a channel state information report corresponding to a joint transmission from multiple points in the channel state information report set. In some embodiments, channel state information common to the subset of two or more channel state information reports in the channel state information report set is reported in one of the channel state information reports. In some embodiments, the common channel state information includes information common to all layers.

[0153] In various embodiments, at least one channel state information report in the channel state information report set includes channel state information corresponding to a Type II codebook, and at least one channel state information report includes at least one bitmap indicating a beam with non-zero coefficients included in at least one channel state information report. In one embodiment, the channel state information reports in the channel state information report set include a plurality of channel quality indicators.

[0154] In some embodiments, the value of at least one channel quality indicator among a plurality of channel quality indicators is calculated differentially relative to the value of another channel quality indicator among a plurality of channel quality indicators. In some embodiments, the at least one channel quality indicator calculated differentially is configured with a channel quality indicator format indicator corresponding to a differential channel quality indicator format.

[0155] Figure 10 This is a flowchart illustrating another embodiment of a method 1000 for reporting channel state information. In some embodiments, method 1000 is performed by a device such as remote unit 102. In some embodiments, method 1000 may be performed by a processor that executes program code, such as a microcontroller, microprocessor, CPU, GPU, auxiliary processing unit, FPGA, etc.

[0156] In various embodiments, method 1000 includes receiving 1002 channel state information report configuration information, wherein the channel state information report configuration information includes: information indicating the configuration of one or more channel state information reference signal resources associated with a channel state information reference signal resource set for channel measurement and a channel state information interference management resource set for interference measurement; and information indicating the use of channel state information feedback corresponding to a plurality of points, wherein each of the plurality of points is associated with a non-zero power channel state information reference signal resource for channel measurement in the channel state information reference signal resource set, and the plurality of points are associated with one or more channel state information interference management resources for interference measurement in the channel state information interference management resource set. In some embodiments, method 1000 includes generating 1004 a channel state information report set based on the channel state information report configuration information, wherein each channel state information report in the channel state information report set includes two parts. In various embodiments, method 1000 includes reporting 1006 a channel state information report set to the network.

[0157] In some embodiments, each of the plurality of points corresponds to a transmit and receive point or a panel of transmit and receive points. In some embodiments, information indicating the use of channel state information feedback for the plurality of points includes: radio resource control parameters within a channel state information reporting configuration; the number of channel state information reports within a channel state information reporting configuration; quasi-co-location relationships relating to one or more channel state information reference signal resources within a channel state information reference signal resource set; code points indicating different downlink control information states; codebook type parameters; codebook configuration parameters; transmission configuration indicator code points from a transmission configuration including at least two transmission configuration indicator states; indications of spatial multiplexing schemes across the plurality of points; or combinations thereof. In various embodiments, each of the plurality of points is associated with a channel state information interference management resource for interference measurement.

[0158] In one embodiment, each channel state information (CSI) reference signal resource used for channel measurement is associated with a CSI interference management resource on a resource-by-resource basis through the ordering of CSI reference signal resources and CSI interference management resources in the corresponding resource set, and the number of CSI reference signal resources used for channel measurement is equal to the number of CSI interference management resources. In some embodiments, non-zero power CSI reference signal resources for channel measurement and CSI interference management resources for interference measurement associated with the same point are quasi-co-located with respect to "QCL-TypeD". In some embodiments, multiple points are associated with at least one non-zero power CSI reference signal resource used for interference measurement.

[0159] In various embodiments, the channel state information report set includes two subsets of channel state information reports. The first subset includes at least one channel state information report corresponding to a single-point transmission, and the second subset includes at least one channel state information report corresponding to joint transmission from multiple points. In one embodiment, a partition of the same channel state information for both channel state information reports is reported in one of two channel state information reports associated with different subsets of the two subsets of the channel state information reports.

[0160] In some embodiments, a subset of one or more channel state information reports from a set of channel state information reports is identified. In some embodiments, the subset of one or more channel state information reports is identified based on: network configuration; identifiers of the channel state information reports; user equipment feedback; a function of the rank indicator of one or more channel state information reports; a function of the channel quality indicator of one or more channel state information reports; or some combinations thereof. In various embodiments, a subset of one or more channel state information reports is reported in part.

[0161] In one embodiment, a first portion of two parts of one or more subsets of channel state information reports is reported, and a second portion of the two parts of one or more subsets of channel state information reports is not reported. In some embodiments, a first portion of two parts and a first portion of the second part of one or more subsets of channel state information reports are reported, and the last portion of the second part of the two parts of one or more subsets of channel state information reports is not reported. In some embodiments, one or more subsets of channel state information reports are not reported.

[0162] Figure 11 This is a flowchart illustrating yet another embodiment of a method 1100 for reporting channel state information. In some embodiments, method 1100 is performed by a device such as remote unit 102. In some embodiments, method 1100 may be performed by a processor that executes program code, such as a microcontroller, microprocessor, CPU, GPU, auxiliary processing unit, FPGA, etc.

[0163] In various embodiments, method 1100 includes receiving 1102 channel state information report configuration information, wherein the channel state information report configuration information includes: information indicating one or more channel state information-reference signal resource configurations associated with at least one non-zero power channel state information reference signal resource set for channel measurement; and information indicating the use of channel state information report configurations corresponding to a plurality of points, wherein the plurality of points are associated with points of a primary group or points of a secondary group. In some embodiments, method 1100 includes performing 1104 channel measurement using at least one non-zero power channel state information reference signal resource set. In various embodiments, method 1100 includes generating 1106 a channel state information report set based on the channel state information report configuration information.

[0164] In some embodiments, each of the plurality of points corresponds to a transmit and receive point or a panel of transmit and receive points. In some embodiments, information indicating the use of channel state information feedback for the plurality of points includes: radio resource control parameters within a channel state information reporting configuration; the number of channel state information reports within a channel state information reporting configuration; quasi-co-location relationships relating to one or more channel state information reference signal resources within the at least one channel state information reference signal resource set; code points indicating different downlink control information states; codebook type parameters; codebook configuration parameters; transmission configuration indicator code points from a transmission configuration including at least two transmission configuration indicator states; indications of spatial multiplexing schemes across the plurality of points; or combinations thereof.

[0165] In various embodiments, the points of the primary group include one point, and the points of the secondary group include at least one point. In one embodiment, joint transmission from the two points corresponds to the primary point and the secondary point in the primary group and the secondary point in the secondary group. In some embodiments, the primary point is associated with a non-zero power channel state information reference signal resource for channel measurement that is quasi-co-located with the physical downlink control channel.

[0166] In some embodiments, the rank indicator value carried in the channel state information report corresponding to the secondary point channel state information feedback is no more than two. In various embodiments, each of the plurality of points is associated with a non-zero power channel state information reference signal resource for channel measurement in the channel state information reference signal resource set. In one embodiment, one or more non-zero power channel state information reference signal resources for interference measurement are quasi-co-located with non-zero power channel state information reference signal resources for channel measurement.

[0167] In some embodiments, method 1100 further includes transmitting a set of channel state information reports in order based on a channel state information priority function, wherein the channel state information priority function is calculated using a formula, and channel state information reports with lower formula values ​​have higher priority. ,in, It is the total number of channel state information report groups. g It is the value from 0 to Corresponding index, s It is a channel state information configuration index. This is the maximum number of channel state information reports configured. c It is a cell index. It refers to the number of residential communities served. k The channel state information report for carrying the received power of the Layer 1 reference signal or the Layer 1 signal-to-noise ratio is 0, otherwise it is 1, and y The value is 0 for non-periodic reports, 1 for semi-persistent reports transmitted on the physical uplink shared channel, 2 for semi-persistent reports transmitted on the physical uplink control channel, or 3 for periodic reports.

[0168] In some embodiments, channel state information reports corresponding to single-point transmissions in the channel state information report set have a higher priority than channel state information reports corresponding to joint transmissions from multiple points in the channel state information report set. In various embodiments, channel state information reports corresponding to single-point transmissions from a primary point have a higher priority than channel state information reports in the channel state information report set.

[0169] In one embodiment, a method includes: receiving channel state information report configuration information, wherein the channel state information report configuration information includes: information indicating the configuration of one or more channel state information reference signal resources associated with one or more channel state information reference signal resource sets for channel measurement, interference measurement, or a combination thereof; and information indicating the use of channel state information feedback corresponding to a plurality of points, wherein each of the plurality of points is associated with a non-zero power channel state information reference signal resource of the channel state information reference signal resource set for channel measurement, and at least one of the plurality of points is associated with one or more channel state information interference management resources for zero power interference measurement; performing channel measurement using the channel state information reference signal resource set; and generating a channel state information report set based on the channel state information report configuration information.

[0170] In some embodiments, each of the plurality of points corresponds to a transmit and receive point or a panel of transmit and receive points.

[0171] In some embodiments, the information indicating the use of channel state information feedback for multiple points includes: radio resource control parameters within the channel state information reporting configuration; the number of channel state information reports within the channel state information reporting configuration; quasi-co-location relationships involving one or more channel state information reference signal resources within one or more channel state information reference signal resource sets; code points indicating different downlink control information states; codebook type parameters; codebook configuration parameters; transmission configuration indicator code points from a transmission configuration including at least two transmission configuration indicator states; indications of spatial multiplexing schemes across multiple points; or combinations thereof.

[0172] In various embodiments, the channel state information report in the channel state information report set includes two parts, and the second part of the two parts of the channel state information report includes two precoder matrix indicators.

[0173] In one embodiment, the first precoder matrix indicator of the two precoder matrix indicators is associated with a non-zero power channel state information reference signal resource for channel measurement resources, a non-zero power channel state information reference signal resource for interference measurement resources, a channel state information interference management resource, or some combination thereof, and the second precoder matrix indicator of the two precoder matrix indicators is associated with a non-zero power channel state information reference signal for channel measurement resources, a channel state information interference management resource, or a combination thereof.

[0174] In some embodiments, the absolute difference between the number of layers corresponding to the first precoder matrix indicator and the number of layers corresponding to the second precoder matrix indicator is no greater than one.

[0175] In some embodiments, the method further includes transmitting a set of channel state information reports in order based on a channel state information priority function.

[0176] In various embodiments, the channel state information priority function is calculated using a formula, wherein channel state information reports with lower formula values ​​have higher priority: ,in, It is the total number of channel state information report groups. g It is the value from 0 to Corresponding index, s It is a channel state information configuration index. This is the maximum number of channel state information reports configured. c It is a cell index. It refers to the number of residential communities served. k The channel state information report for carrying the received power of the Layer 1 reference signal or the Layer 1 signal-to-noise ratio is 0, otherwise it is 1, andy The value is 0 for non-periodic reports, 1 for semi-persistent reports transmitted on the physical uplink shared channel, 2 for semi-persistent reports transmitted on the physical uplink control channel, or 3 for periodic reports.

[0177] In one embodiment, a channel state information report corresponding to a single-point transmission in the channel state information report set has a higher priority than a channel state information report corresponding to a joint transmission from multiple points in the channel state information report set.

[0178] In some embodiments, channel state information common to the subset of two or more channel state information reports in a channel state information report set is reported in one of the channel state information reports.

[0179] In some embodiments, common channel state information includes information that is common to all layers.

[0180] In various embodiments, at least one channel state information report in the channel state information report set includes channel state information corresponding to a Type II codebook, and at least one channel state information report includes at least one bitmap indicating a beam with non-zero coefficients included in at least one channel state information report.

[0181] In one embodiment, the channel state information reports in the channel state information report set include multiple channel quality indicators.

[0182] In some embodiments, the value of at least one of a plurality of channel quality indicators is calculated differentially relative to the value of another of the plurality of channel quality indicators.

[0183] In some embodiments, at least one channel quality indicator calculated differentially is configured with a channel quality indicator format indicator corresponding to the differential channel quality indicator format.

[0184] In one embodiment, an apparatus includes: a receiver configured to receive channel state information report configuration information, wherein the channel state information report configuration information includes: information indicating the configuration of one or more channel state information reference signal resources associated with one or more channel state information reference signal resource sets for channel measurement, interference measurement, or a combination thereof; and information indicating the use of channel state information feedback corresponding to a plurality of points, wherein each of the plurality of points is associated with a non-zero power channel state information reference signal resource of the channel state information reference signal resource set for channel measurement, and at least one of the plurality of points is associated with one or more channel state information interference management resources for zero power interference measurement; and a processor configured to: use the channel state information reference signal resource set To perform channel measurements; and to generate a set of channel state information reports based on channel state information report configuration information, wherein each of the plurality of points corresponds to a transmit and receive point or a panel of transmit and receive points, and wherein the information indicating the use of channel state information feedback for the plurality of points includes: radio resource control parameters within the channel state information report configuration; the number of channel state information reports within the channel state information report configuration; quasi-co-location relationships involving one or more channel state information reference signal resources within one or more channel state information reference signal resource sets; code points indicating different downlink control information states; codebook type parameters; codebook configuration parameters; transmission configuration indicator code points from a transmission configuration including at least two transmission configuration indicator states; indications of spatial multiplexing schemes across the plurality of points; or some combination thereof.

[0185] In some embodiments, the channel state information report in the channel state information report set includes two parts, and the second part of the two parts of the channel state information report includes two precoder matrix indicators. The first precoder matrix indicator of the two precoder matrix indicators is associated with a non-zero power channel state information reference signal resource for channel measurement resources, a non-zero power channel state information reference signal resource for interference measurement resources, a channel state information interference management resource, or some combination thereof. The second precoder matrix indicator of the two precoder matrix indicators is associated with a non-zero power channel state information reference signal for channel measurement resources, a channel state information interference management resource, or a combination thereof. The absolute difference between the number of layers corresponding to the first precoder matrix indicator of the two precoder matrix indicators and the number of layers corresponding to the second precoder matrix indicator of the two precoder matrix indicators is not greater than one.

[0186] In some embodiments, the apparatus further includes a transmitter that transmits a set of channel state information reports in an order based on a channel state information priority function, wherein a channel state information report corresponding to a single-point transmission in the set of channel state information reports has a higher priority than a channel state information report corresponding to a joint transmission from multiple points in the set of channel state information reports, and the channel state information priority function is calculated using a formula, wherein a channel state information report with a lower formula value has a higher priority: ,in, It is the total number of channel state information report groups. g It is the value from 0 to Corresponding index, s It is a channel state information configuration index. This is the maximum number of channel state information reports configured. c It is a cell index. It refers to the number of residential communities served. k The channel state information report for carrying the received power of the Layer 1 reference signal or the Layer 1 signal-to-noise ratio is 0, otherwise it is 1, and y The value is 0 for non-periodic reports, 1 for semi-persistent reports transmitted on the physical uplink shared channel, 2 for semi-persistent reports transmitted on the physical uplink control channel, or 3 for periodic reports.

[0187] In various embodiments, channel state information common to the subset of two or more channel state information reports in a channel state information report set is reported in one of the channel state information reports.

[0188] In one embodiment, at least one channel state information report in the channel state information report set includes channel state information corresponding to a Type II codebook, and at least one channel state information report includes at least one bitmap indicating a beam with non-zero coefficients included in at least one channel state information report. The channel state information reports in the channel state information report set include a plurality of channel quality indicators, the value of at least one of the plurality of channel quality indicators is calculated differentially relative to the value of another of the plurality of channel quality indicators, and the at least one channel quality indicator calculated differentially is configured with a channel quality indicator format indicator corresponding to a differential channel quality indicator format.

[0189] In one embodiment, a method includes: receiving channel state information report configuration information, wherein the channel state information report configuration information includes: information indicating the configuration of one or more channel state information reference signal resources associated with a channel state information reference signal resource set for channel measurement and a channel state information interference management resource set for interference measurement; and information indicating the use of channel state information feedback corresponding to a plurality of points, wherein each of the plurality of points is associated with a non-zero power channel state information reference signal resource for channel measurement in the channel state information reference signal resource set, and the plurality of points are associated with one or more channel state information interference management resources for interference measurement in the channel state information interference management resource set; generating a channel state information report set based on the channel state information report configuration information, wherein each channel state information report in the channel state information report set includes two parts; and reporting the channel state information report set to a network.

[0190] In some embodiments, each of the plurality of points corresponds to a transmit and receive point or a panel of transmit and receive points.

[0191] In some embodiments, the information indicating the use of channel state information feedback for multiple points includes: radio resource control parameters within the channel state information reporting configuration; the number of channel state information reports within the channel state information reporting configuration; quasi-co-location relationships involving one or more channel state information reference signal resources within the channel state information reference signal resource set; code points indicating different downlink control information states; codebook type parameters; codebook configuration parameters; transmission configuration indicator code points from a transmission configuration including at least two transmission configuration indicator states; indications of spatial multiplexing schemes across multiple points; or combinations thereof.

[0192] In various embodiments, each of the multiple points is associated with a channel state information interference management resource used for interference measurement.

[0193] In one embodiment, each channel state information reference signal resource used for channel measurement is associated with channel state information interference management resources on a resource-by-resource basis through the ordering of channel state information reference signal resources and channel state information interference management resources in the corresponding resource set, and the number of channel state information reference signal resources used for channel measurement is equal to the number of channel state information interference management resources.

[0194] In some embodiments, the non-zero power channel state information reference signal resource for channel measurement and the channel state information interference management resource for interference measurement associated with the same point are quasi-co-located with respect to "QCL-TypeD".

[0195] In some embodiments, multiple points are associated with at least one non-zero power channel state information reference signal resource for interference measurement.

[0196] In various embodiments, the channel state information report set includes two subsets of channel state information reports, the first of the two subsets including at least one channel state information report corresponding to a single-point transmission, and the second of the two subsets including at least one channel state information report corresponding to a joint transmission from multiple points.

[0197] In one embodiment, a partition of the same channel state information is reported in one of two channel state information reports associated with different subsets of two subsets of the channel state information reports.

[0198] In some embodiments, a subset of one or more channel state information reports from the channel state information report set is identified.

[0199] In some embodiments, one or more channel state information reports of a subset of channel state information reports are identified based on: network configuration; the identifier of the channel state information reports; user equipment feedback; a function of the rank indicator of one or more channel state information reports; a function of the channel quality indicator of one or more channel state information reports; or some combination thereof.

[0200] In various embodiments, one or more channel state information reports are reported, which are subsets of the channel state information reports.

[0201] In one embodiment, a first portion of one or more portions of a channel state information report (a subset of the channel state information report) is reported, and a second portion of one or more portions of a channel state information report (a subset of the channel state information report) is not reported.

[0202] In some embodiments, a first portion of two parts and a first portion of a second portion of one or more subsets of the channel state information report are reported, and the last portion of the second portion of one or more subsets of the channel state information report is not reported.

[0203] In some embodiments, one or more channel state information reports, a subset of the channel state information reports, are not reported.

[0204] In one embodiment, an apparatus includes: a receiver configured to receive channel state information report configuration information, wherein the channel state information report configuration information includes: information indicating one or more channel state information reference signal resource configurations associated with a channel state information reference signal resource set for channel measurement and a channel state information interference management resource set for interference measurement; and information indicating the use of channel state information feedback corresponding to a plurality of points, wherein each of the plurality of points is associated with a non-zero power channel state information reference signal resource for channel measurement in the channel state information reference signal resource set, the plurality of points are associated with one or more channel state information interference management resources for interference measurement in the channel state information interference management resource set, and each of the plurality of points corresponds to a transmit and receive point or a panel of transmit and receive points; and a processor configured to: generate a channel state information report set based on the channel state information report configuration information, wherein each channel state information report in the channel state information report set includes two parts; and report the channel state information report set to a network.

[0205] In some embodiments, the information indicating the use of channel state information feedback for multiple points includes: radio resource control parameters within the channel state information reporting configuration; the number of channel state information reports within the channel state information reporting configuration; quasi-co-location relationships involving one or more channel state information reference signal resources within the channel state information reference signal resource set; code points indicating different downlink control information states; codebook type parameters; codebook configuration parameters; transmission configuration indicator code points from a transmission configuration including at least two transmission configuration indicator states; indications of spatial multiplexing schemes across multiple points; or combinations thereof.

[0206] In some embodiments, each of the plurality of points is associated with a channel state information interference management resource for interference measurement, and each channel state information reference signal resource for channel measurement is associated with the channel state information interference management resource on a resource-by-resource basis by the ordering of the channel state information reference signal resources and channel state information interference management resources in the corresponding resource set. The number of channel state information reference signal resources for channel measurement is equal to the number of channel state information interference management resources, and the non-zero power channel state information reference signal resources for channel measurement and the channel state information interference management resources for interference measurement associated with the same point are quasi-co-located with respect to "QCL-TypeD".

[0207] In various embodiments, the channel state information report set includes two subsets of channel state information reports. The first subset of the two subsets of channel state information reports includes at least one channel state information report corresponding to a single-point transmission, and the second subset of the two subsets of channel state information reports includes at least one channel state information report corresponding to a joint transmission from multiple points. Furthermore, a partition of the same channel state information for the two channel state information reports is reported in one of the two channel state information reports associated with a different subset of the two subsets of the channel state information reports.

[0208] In one embodiment, a subset of one or more channel state information reports of a channel state information report set is identified, and the subset of one or more channel state information reports is identified based on: network configuration; identifier of the channel state information report; user equipment feedback; a function of the rank indicator of one or more channel state information reports; a function of the channel quality indicator of one or more channel state information reports; or some combination thereof, wherein one or more channel state information reports of the subset of channel state information reports are reported in part, and one or more channel state information reports of the subset of channel state information reports are not reported, and wherein: a first part of two parts of one or more channel state information reports of the subset of channel state information reports is reported, and a second part of two parts of one or more channel state information reports of the subset of channel state information reports is not reported; or a first part of two parts of one or more channel state information reports of the subset of channel state information reports and a first part of the second part of two parts of two parts are reported, and the last part of the second part of two parts of one or more channel state information reports of the subset of channel state information reports is not reported.

[0209] In one embodiment, a method includes: receiving channel state information report configuration information, wherein the channel state information report configuration information includes: information indicating one or more channel state information-reference signal resource configurations associated with at least one non-zero power channel state information reference signal resource set for channel measurement; and information indicating the use of channel state information report configurations corresponding to a plurality of points, wherein the plurality of points are associated with points of a primary group or points of a secondary group; performing channel measurement using at least one non-zero power channel state information reference signal resource set; and generating a channel state information report set based on the channel state information report configuration information.

[0210] In some embodiments, each of the plurality of points corresponds to a transmit and receive point or a panel of transmit and receive points.

[0211] In some embodiments, the information indicating the use of channel state information feedback for multiple points includes: radio resource control parameters within a channel state information reporting configuration; the number of channel state information reports within a channel state information reporting configuration; quasi-co-location relationships involving one or more channel state information reference signal resources within the at least one channel state information reference signal resource set; code points indicating different downlink control information states; codebook type parameters; codebook configuration parameters; transmission configuration indicator code points from a transmission configuration including at least two transmission configuration indicator states; indications of spatial multiplexing schemes across multiple points; or combinations thereof.

[0212] In various embodiments, the points of the primary group include one point, and the points of the secondary group include at least one point.

[0213] In one embodiment, the joint transmission from two points corresponds to the main point and the secondary point in the main group and the secondary group.

[0214] In some embodiments, the key point is associated with the non-zero power channel state information reference signal resource for channel measurement, which is quasi-co-located with the physical downlink control channel.

[0215] In some embodiments, the rank indicator value carried in the channel state information report corresponding to the secondary channel state information feedback does not exceed two.

[0216] In various embodiments, each of the plurality of points is associated with a non-zero power channel state information reference signal resource for channel measurement in the channel state information reference signal resource set.

[0217] In one embodiment, one or more non-zero power channel state information reference signal resources for interference measurement are quasi-co-located with non-zero power channel state information reference signal resources for channel measurement.

[0218] In some embodiments, the method further includes transmitting a set of channel state information reports in order based on a channel state information priority function, wherein the channel state information priority function is calculated using a formula, and channel state information reports with lower formula values ​​have higher priority. ,in, It is the total number of channel state information report groups. g It is the value from 0 to Corresponding index, s It is a channel state information configuration index. This is the maximum number of channel state information reports configured. c It is a cell index. It refers to the number of residential communities served. kThe channel state information report for carrying the received power of the Layer 1 reference signal or the Layer 1 signal-to-noise ratio is 0, otherwise it is 1, and y The value is 0 for non-periodic reports, 1 for semi-persistent reports transmitted on the physical uplink shared channel, 2 for semi-persistent reports transmitted on the physical uplink control channel, or 3 for periodic reports.

[0219] In some embodiments, a channel state information report corresponding to a single-point transmission in the channel state information report set has a higher priority than a channel state information report corresponding to a joint transmission from multiple points in the channel state information report set.

[0220] In various embodiments, channel state information reports corresponding to single-point transmissions from the primary point have a higher priority than channel state information reports in the channel state information report set.

[0221] In one embodiment, an apparatus includes: a receiver configured to receive channel state information report configuration information, wherein the channel state information report configuration information includes: information indicating one or more channel state information-reference signal resource configurations associated with at least one non-zero power channel state information reference signal resource set for channel measurement; and information indicating the use of channel state information report configurations corresponding to a plurality of points, wherein the plurality of points are associated with points of a primary group or points of a secondary group; and a processor configured to: perform channel measurement using at least one non-zero power channel state information reference signal resource set; and generate a channel state information report set based on the channel state information report configuration information.

[0222] In some embodiments, each of the plurality of points corresponds to a transmit and receive point or a panel of transmit and receive points.

[0223] In some embodiments, the information indicating the use of channel state information feedback for multiple points includes: radio resource control parameters within a channel state information reporting configuration; the number of channel state information reports within a channel state information reporting configuration; quasi-co-location relationships involving one or more channel state information reference signal resources within the at least one channel state information reference signal resource set; code points indicating different downlink control information states; codebook type parameters; codebook configuration parameters; transmission configuration indicator code points from a transmission configuration including at least two transmission configuration indicator states; indications of spatial multiplexing schemes across multiple points; or combinations thereof.

[0224] In various embodiments, the points of the primary group include one point, and the points of the secondary group include at least one point.

[0225] In one embodiment, the joint transmission from two points corresponds to a primary point in a primary group and a secondary point in a secondary group. The primary point is associated with a non-zero power channel state information reference signal resource for channel measurement that is quasi-co-located with the physical downlink control channel, and the rank indicator value carried in the channel state information report corresponding to the channel state information feedback of the secondary point does not exceed two.

[0226] In some embodiments, each of the plurality of points is associated with a non-zero power channel state information reference signal resource for channel measurement in the channel state information reference signal resource set, and one or more non-zero power channel state information reference signal resources for interference measurement are quasi-co-located with the non-zero power channel state information reference signal resources for channel measurement.

[0227] In some embodiments, the apparatus further includes a transmitter that transmits a set of channel state information reports in order based on a channel state information priority function, wherein the channel state information priority function is calculated using a formula, and channel state information reports with lower formula values ​​have higher priority. ,in, It is the total number of channel state information report groups. g It is the value from 0 to Corresponding index, s It is a channel state information configuration index. This is the maximum number of channel state information reports configured. c It is a cell index. It refers to the number of residential communities served. k The channel state information report for carrying the received power of the Layer 1 reference signal or the Layer 1 signal-to-noise ratio is 0, otherwise it is 1, and y The value is 0 for non-periodic reports, 1 for semi-persistent reports transmitted on the physical uplink shared channel, 2 for semi-persistent reports transmitted on the physical uplink control channel, or 3 for periodic reports.

[0228] In various embodiments, channel state information reports corresponding to single-point transmissions in the channel state information report set have a higher priority than channel state information reports corresponding to joint transmissions from multiple points in the channel state information report set, and channel state information reports corresponding to single-point transmissions from a major point have a higher priority than channel state information reports in the channel state information report set.

[0229] Other specific embodiments may be practiced. The described embodiments should be considered in all respects as illustrative rather than restrictive. Therefore, the scope of the invention is indicated by the appended claims rather than by the foregoing description. All variations falling within the meaning and equivalents of the claims should be included within their scope.

Claims

1. A method comprising: Send channel state information report configuration information, wherein the channel state information report configuration information includes: Information indicating the configuration of one or more channel state information reference signal resources associated with the non-zero power channel state information reference signal resource set used for channel measurements and the channel state information interference management resource set used for interference measurements; and The information is indicated by using channel state information feedback corresponding to multiple points, wherein each of the multiple points is associated with a non-zero power channel state information reference signal resource for channel measurement in the channel state information reference signal resource set, and each of the multiple points is associated with a channel state information interference management resource for interference measurement in the channel state information interference management resource set. Receive channel state information report set The channel state information report set is generated based on the channel state information report configuration information; Each channel state information report in the channel state information report set comprises two parts; Each non-zero power channel state information (CSO) reference signal resource used for channel measurement is associated with the CSO interference management resource on a resource-by-resource basis through the ordering of the non-zero power CSO reference signal resources and CSO interference management resources in the corresponding resource set, and the number of CSO reference signal resources used for channel measurement is equal to the number of non-zero power CSO interference management resources. The non-zero power channel state information reference signal resource used for channel measurement and the channel state information interference management resource used for interference measurement are quasi-co-located with respect to "QCL-TypeD".

2. The method according to claim 1, wherein, Each of the plurality of points corresponds to a transmit and receive point or a panel of transmit and receive points.

3. The method according to claim 1, wherein, The information indicating the use of channel state information feedback for multiple points includes: The radio resource control parameters within the channel state information report configuration; The number of channel state information reports configured within the channel state information report configuration; This relates to the quasi-co-address relationship of one or more channel state information reference signal resources within the aforementioned channel state information reference signal resource set; Code points indicating different downlink control information states; Codebook type parameters; Codebook configuration parameters; Transmission configuration indicator code point from a transmission configuration that includes at least two transmission configuration indicator states; Indication of a spatial multiplexing scheme spanning multiple points; or Some of its combinations.

4. The method according to claim 1, wherein, The plurality of points are associated with at least one non-zero power channel state information reference signal resource used for interference measurement.

5. The method according to claim 1, wherein, The channel state information report set includes two subsets of channel state information reports. The first subset of the two subsets includes at least one channel state information report corresponding to a single-point transmission, and the second subset of the two subsets includes at least one channel state information report corresponding to a joint transmission from multiple points.

6. The method according to claim 5, wherein, A partition that reports the same channel state information for both channel state information reports is reported in one of two channel state information reports associated with a different subset of two subsets of the channel state information report.

7. The method according to claim 1, wherein, Identify one or more subsets of the channel state information reports in the channel state information report set.

8. The method according to claim 7, wherein, The one or more channel state information reports of the subset of the channel state information reports are identified based on the following: Network configuration; The identifier of the channel state information report; User equipment feedback; A function of the rank indicator of the one or more channel state information reports; A function of the channel quality indicator reported by the one or more channel state information reports; or Some of its combinations.

9. The method according to claim 7, wherein, The channel state information reports, which are a subset of the channel state information reports, are reported in part.

10. The method according to claim 9, wherein, The first part of the two portions of the one or more channel state information reports of the subset of the channel state information reports is reported, and the second part of the two portions of the one or more channel state information reports of the subset of the channel state information reports is not reported.

11. The method according to claim 9, wherein, The report shall include a first portion of the first part of the two parts of the one or more channel state information reports of the subset of the channel state information reports and a first portion of the second part of the two parts of the channel state information reports of the subset of the channel state information reports, but shall not report the last part of the second part of the two parts of the one or more channel state information reports of the subset of the channel state information reports.

12. The method according to claim 7, wherein, The channel state information reports, including but not limited to a subset of the channel state information reports, are not reported.

13. An apparatus comprising: A transmitter configured to transmit channel state information report configuration information, wherein the channel state information report configuration information includes: Information indicating the configuration of one or more channel state information (CSI) reference signal resources associated with the non-zero power CSI reference signal resource set used for channel measurements and the CSI interference management resource set used for interference measurements; and The instructions specify the use of channel state information feedback corresponding to multiple points, wherein each of the multiple points is associated with a non-zero power channel state information reference signal resource for channel measurement in the channel state information reference signal resource set, each of the multiple points is associated with a channel state information interference management resource for interference measurement in the channel state information interference management resource set, and each of the multiple points corresponds to a transmit and receive point or a transmit and receive point panel; and Receiver, the receiver being configured to: Receive channel state information report set The channel state information report set is generated based on the channel state information report configuration information; Each channel state information report in the channel state information report set comprises two parts; Each non-zero power channel state information (CSO) reference signal resource used for channel measurement is associated with the CSO interference management resource on a resource-by-resource basis through the ordering of the non-zero power CSO reference signal resources and CSO interference management resources in the corresponding resource set, and the number of CSO reference signal resources used for channel measurement is equal to the number of non-zero power CSO interference management resources. The non-zero power channel state information reference signal resource used for channel measurement and the channel state information interference management resource used for interference measurement are quasi-co-located with respect to "QCL-TypeD".

14. The apparatus according to claim 13, wherein, The information indicating the use of channel state information feedback for multiple points includes: The radio resource control parameters within the channel state information report configuration; The number of channel state information reports configured within the channel state information report configuration; This relates to the quasi-co-address relationship of one or more channel state information reference signal resources within the aforementioned channel state information reference signal resource set; Code points indicating different downlink control information states; Codebook type parameters; Codebook configuration parameters; Transmission configuration indicator code point from a transmission configuration that includes at least two transmission configuration indicator states; Indication of a spatial multiplexing scheme spanning multiple points; or Some of its combinations.

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