Communication method and device, and computer storage medium

Abstract

Embodiments of the present disclosure provide a solution for measurement configuration. A terminal device receives at least one configuration for a measurement report from a network device. The at least one configuration includes a first plurality of reference signal resources, an indication of a mode, and at least one codebook subset limit, each codebook subset limit of the at least one codebook subset limit being associated with one reference signal resource, the at least one configuration for the measurement report includes a first value in a first dimension and a first value in a second dimension. The terminal device determines a second value in the first dimension and a second value in the second dimension based on the indication of the mode. The terminal device transmits a measurement report based on the at least one configuration, the second value in the first dimension, and the second value in the second dimension.

Description

Technical Field

[0001] Embodiments of this disclosure generally relate to the field of telecommunications, and more particularly to methods, apparatus, and computer storage media for communication of channel state information (CSI). Background Technology

[0002] Several techniques have been proposed to improve communication performance. For example, Multiple-Input Multiple-Output (MIMO) has been proposed. MIMO includes features that facilitate the utilization of a large number of antenna elements at the base station for frequency bands below and above 6 GHz. In this case, multiple antennas at the transmitter and / or receiver can be used to achieve array and diversity gain rather than capacity gain. In wireless communication, Channel State Information (CSI) is a known channel property of the communication link. This information describes how the signal propagates from the transmitter to the receiver and represents, for example, combined effects of scattering, fading, and power attenuation with distance. This method is called channel estimation. CSI allows transmission to adapt to current channel conditions, which is crucial for achieving reliable communication at high data rates in multi-antenna systems. Therefore, CSI enhancement is worthy of investigation. Summary of the Invention

[0003] Typically, embodiments of this disclosure provide methods, apparatus, and computer storage media for CSI.

[0004] In a first aspect, a terminal device is provided, comprising: a processor configured to cause the terminal device to: receive from a network device at least one configuration for a measurement report, wherein the at least one configuration includes a first plurality of reference signal resources, an indication of a pattern, and at least one codebook subset restriction, wherein each of the at least one codebook subset restriction is associated with a reference signal resource, wherein the at least one configuration for the measurement report includes a first value in a first dimension and a first value in a second dimension; determine a second value in the first dimension and a second value in the second dimension based on the indication of the pattern; and transmit a measurement report to the network device based on the at least one configuration, the second value in the first dimension, and the second value in the second dimension.

[0005] In a second aspect, a network device is provided, comprising: a processor configured to cause the network device to: send at least one configuration for a measurement report to an end device, wherein the at least one configuration includes a first plurality of reference signal resources, an indication of a pattern, and at least one codebook subset restriction, wherein each of the at least one codebook subset restriction is associated with a reference signal resource, wherein the at least one configuration for the measurement report includes a first value in a first dimension and a first value in a second dimension, and wherein the second value in the first dimension and the second value in the second dimension are based on the indication of a pattern; and receive a measurement report based on the at least one configuration from the end device.

[0006] In a third aspect, a communication method performed by a terminal device is provided. The method includes: receiving from a network device at least one configuration for a measurement report, wherein the at least one configuration includes a first plurality of reference signal resources, an indication of a pattern, and at least one codebook subset restriction, wherein each of the at least one codebook subset restriction is associated with a reference signal resource, wherein the at least one configuration for the measurement report includes a first value in a first dimension and a first value in a second dimension; determining a second value in the first dimension and a second value in the second dimension based on the indication of the pattern; and transmitting to the network device a measurement report based on the at least one configuration, the second value in the first dimension, and the second value in the second dimension.

[0007] In a fourth aspect, a communication method performed by a network device is provided. The method includes: sending at least one configuration for a measurement report to a terminal device, wherein the at least one configuration includes a first plurality of reference signal resources, an indication of a pattern, and at least one codebook subset restriction, wherein each of the at least one codebook subset restriction is associated with a reference signal resource, wherein the at least one configuration for the measurement report includes a first value in a first dimension and a first value in a second dimension, and wherein the second value in the first dimension and the second value in the second dimension are based on the indication of a pattern; and receiving a measurement report based on the at least one configuration from the terminal device.

[0008] In a fifth aspect, a computer-readable medium is provided having instructions stored thereon that, when executed on at least one processor, cause the at least one processor to perform the method according to a third or fourth aspect.

[0009] Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0010] The above and other objects, features and advantages of this disclosure will become more apparent from the more detailed description of some embodiments thereof in the accompanying drawings, wherein: Figure 1 This is a schematic diagram of a communication environment in which embodiments of the present disclosure can be implemented; Figure 2 Signaling flows for communication according to some embodiments of this disclosure are shown; Figures 3A to 3C Schematic diagrams of CSI-RS resource modes are shown below; Figure 4A and Figure 4B Schematic diagrams of CSI-RS resource modes are shown below; Figures 5AA to 5HD Schematic diagrams of CSI-RS resource modes are shown below; Figure 6 The signaling stream for transmitting measurement reports according to some embodiments of this disclosure is shown; Figures 7A to 7C Schematic diagrams of vectors are shown respectively; Figure 8 A schematic diagram of the CSI-RE resource model is shown; Figure 9 A flowchart is shown illustrating a method implemented at a terminal device according to some example embodiments of the present disclosure; Figure 10 A flowchart is shown illustrating a method implemented at a network device according to some example embodiments of the present disclosure; Figure 11 A flowchart is shown illustrating a method implemented at a terminal device according to some example embodiments of the present disclosure; Figure 12 A flowchart is shown illustrating a method implemented at a network device according to some example embodiments of the present disclosure; Figure 13 A simplified block diagram of an apparatus suitable for implementing an example embodiment of the present disclosure is shown.

[0011] In all the accompanying drawings, the same or similar reference numerals denote the same or similar elements. Detailed Implementation

[0012] The principles of this disclosure will now be described with reference to some embodiments. It should be understood that these embodiments are described for illustrative purposes only and to assist those skilled in the art in understanding and implementing this disclosure, and do not imply any limitation on the scope of this disclosure. The disclosure described herein can be implemented in various ways other than those described below.

[0013] In the following description and claims, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains.

[0014] As used herein, the term "terminal device" refers to any device with wireless or wired communication capabilities. Examples of terminal devices include, but are not limited to, user equipment (UE), personal computers, desktop computers, mobile phones, cellular phones, smartphones, personal digital assistants (PDAs), portable computers, tablets, wearable devices, Internet of Things (IoT) devices, ultra-reliable and low-latency communication (URLLC) devices, Internet of Everything (IoE) devices, machine-type communication (MTC) devices, on-vehicle devices for V2X communication (where X refers to pedestrians, vehicles, or infrastructure / networks), devices for integrated access and backhaul (IAB), space vehicles or air vehicles in non-terrestrial networks (NTNs) including satellites and high-altitude platforms (HAPs) covering unmanned aerial vehicle systems (UAS), extended reality (XR) devices including different types of reality (such as augmented reality (AR), mixed reality (MR), and virtual reality (VR)), unmanned aerial vehicles (UAVs) (often referred to as drones, which are aircraft without any human pilots), devices on high-speed trains (HSTs), or image capture devices (such as digital cameras), sensors, gaming devices, music storage and playback devices, or internet devices that enable wireless or wired internet access and browsing, etc. "Terminal equipment" can also have "multicast / broadcast" features to support public safety and mission-critical applications, V2X applications, transparent IPv4 / IPv6 multicast delivery, IPTV, smart TV, radio services, wireless software delivery, group communications, and IoT applications. It can also incorporate one or more Subscriber Identity Modules (SIMs), referred to as multi-SIM. The term "terminal equipment" is used interchangeably with UE, mobile station, subscriber station, mobile terminal, user terminal, or wireless device.

[0015] The term "network device" refers to a device that provides or hosts communication for terminal devices within a cell or coverage area. Examples of network devices include, but are not limited to, NodeB (or NB), evolved NodeB (eNodeB or eNB), next-generation NodeB (gNB), Transmitter Receiver Point (TRP), Remote Radio Unit (RRU), Radio Head (RH), Remote Radio Head (RRH), IAB node, low-power node (such as femtonode, piconode), reconfigurable smart surface (RIS), etc.

[0016] Terminal devices or network devices can have artificial intelligence (AI) or machine learning capabilities. It typically includes models that have been trained from a large amount of collected data for a specific function and can be used to predict some information.

[0017] The terminal or network device can operate on several frequency ranges, such as FR1 (910 MHz to 7125 MHz), FR2 (24.25 GHz to 71 GHz), FR2-2 (52.6 GHz to 71 GHz), bands greater than 100 GHz, and megahertz (THz). It can also operate on licensed / unlicensed / shared spectrum. In multiple radio dual connectivity (MR-DC) applications, the terminal device can have more than one connection to the network device. The terminal or network device can operate in full-duplex, flexible-duplex, and cross-division duplex modes.

[0018] The embodiments of this disclosure can be executed in test equipment, such as signal generators, signal analyzers, spectrum analyzers, network analyzers, test terminal equipment, test network equipment, and channel simulators.

[0019] In some embodiments, the terminal device may be connected to a first network device and a second network device. One of the first and second network devices may be a master node, and the other a slave node. The first and second network devices may use different Radio Access Technologies (RATs). In some embodiments, the first network device may be a first RAT device, and the second network device may be a second RAT device. In some embodiments, the first RAT device is an eNB, and the second RAT device is a gNB. Information related to different RATs may be sent to the terminal device from at least one of the first or second network devices. In some embodiments, first information may be sent from the first network device to the terminal device, and second information may be sent directly or via the first network device from the second network device to the terminal device. In some embodiments, information related to configuration of the terminal device configured by the second network device may be sent via the first network device from the second network device. Information related to reconfiguration of the terminal device configured by the second network device may be sent directly or via the first network device from the second network device to the terminal device.

[0020] As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. The term “comprising” and its variations should be understood as open-ended terms meaning “including, but not limited to.” The term “based on” should be understood as “at least partially based on.” The terms “one embodiment” and “embodiment” should be understood as “at least one embodiment.” The term “another embodiment” should be understood as “at least one other embodiment.” The terms “first,” “second,” etc., may refer to different or the same objects. Further explicit and implicit definitions may be included below.

[0021] In some examples, values, processes, or devices are referred to as “best,” “lowest,” “highest,” “minimum,” “maximum,” etc. It should be understood that such descriptions are intended to indicate that a selection can be made from many functional alternatives used, and that such a selection does not need to be better, smaller, higher, or more preferred than other options.

[0022] As used herein, the terms “resource,” “transmission resource,” “uplink resource,” or “downlink resource” can refer to any resource used to perform communication, such as resources in the time domain, frequency domain, spatial domain, code domain, or any other resource used to implement communication. In the following, unless explicitly stated otherwise, resources in the frequency and time domains will be used as examples of transmission resources used to describe some exemplary embodiments of this disclosure. Note that the exemplary embodiments of this disclosure are equally applicable to other resources in other domains. The term “channel state information (CSI)” as used herein can refer to the channel properties of a communication link. CSI describes how a signal propagates from the transmitter to the receiver and represents, for example, a combination of effects such as scattering, fading, and power attenuation with distance. The term “CSI report” can refer to a report indicating the quality of the channel.

[0023] It should be understood that although features / operations are discussed separately in particular example embodiments, these features / operations described in different example embodiments may be used in any suitable combination unless explicitly indicated to the contrary.

[0024] The principles and implementation of this disclosure will now be described in detail with reference to the accompanying drawings.

[0025] Figure 1 A schematic diagram of an example communication network 100 in which some embodiments of the present disclosure may be implemented is shown. For example... Figure 1 As shown, the communication network 100 may include terminal device 110 and network device 120. Network device 120 can provide cell 102 to serve one or more terminal devices. In this example, terminal device 110 is located in cell 102 and is served by network device 120. Figure 1 In the example, terminal device 110 can be a UE, and network device 120 can be a base station serving the UE. The service area of ​​network device 120 can be referred to as cell 102.

[0026] For example, network device 120 can be configured with at least one of four TRPs / panels 130-1, 130-2, 130-3, and 130-4 (collectively referred to as TRP 130 or individually referred to as TRP 130). It should be understood that, as Figure 1The number of network devices, terminal devices, and TRPs shown is for illustrative purposes only and does not imply any limitation on this disclosure. Network 100 may include any suitable number of devices suitable for implementing embodiments of this disclosure. Although not shown, it should be understood that one or more additional devices may be located in cell 102, and one or more additional cells may be deployed in communication environment 100. Note that although shown as a network device, network device 120 may be another device besides a network device. Although illustrated as a terminal device, terminal device 110 may be another device besides a terminal device. The term "TRP" refers to an antenna array (having one or more antenna elements) available to a network device located in a particular geographic location. For example, a network device may be coupled with multiple TRPs in different geographic locations to achieve better coverage. As another example, a network device may be implemented with multiple panels or multiple sets of antenna ports / elements in the same geographic location. It should be understood that a TRP may also be referred to as a "panel," which also refers to an antenna array (having one or more antenna elements) or an antenna group.

[0027] In the following description, for illustrative purposes, some example embodiments are depicted in which terminal device 110 operates as a UE and network device 120 operates as a base station. However, in some example embodiments, the operations described in connection with the terminal device can be implemented at the network device or other devices, and the operations described in connection with the network device can be implemented at the terminal device or other devices.

[0028] In some example embodiments, if terminal device 110 is a terminal device and network device 120 is a network device, the link from network device 120 to terminal device 110 is referred to as a downlink (DL), and the link from terminal device 110 to network device 120 is referred to as an uplink (UL). In the DL, network device 120 is a transmitting (TX) device (or transmitter), and terminal device 110 is a receiving (RX) device (or receiver). In the UL, terminal device 110 is a TX device (or transmitter), and network device 120 is an RX device (or receiver). In some embodiments, terminal device 110 and network device 120 may communicate with each other via a wireless communication channel on an air interface (e.g., a Uu interface). The wireless communication channel may include a Physical Uplink Control Channel (PUCCH), a Physical Uplink Shared Channel (PUSCH), a Physical Random Access Channel (PRACH), a Physical Downlink Control Channel (PDCCH), a Physical Downlink Shared Channel (PDSCH), and a Physical Broadcast Channel (PBCH). Of course, any other suitable channel is also possible.

[0029] The communications in the communication network 100 can conform to any suitable standard, including but not limited to Global System for Mobile Communications (GSM), Long Term Evolution (LTE), LTE Evolution, LTE-A Advanced, New Radio (NR), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA), GSM EDGE Radio Access Network (GERAN), Machine Type Communication (MTC), etc. Embodiments of this disclosure can be implemented according to any generation of communication protocols currently known or developed in the future. Examples of communication protocols include, but are not limited to, first-generation (1G), second-generation (2G), 2.5G, 2.75G, third-generation (3G), fourth-generation (4G), 4.5G, fifth-generation (5G) communication protocols, 5.5G, 5G Advanced networks, or sixth-generation (6G) networks.

[0030] like Figure 1 As shown, network device 120 can communicate with terminal device 110 via at least one of TRP / panels 130-1, 130-2, 130-3, and 130-4. Hereinafter, TRP / panel 130-1 may also be referred to as the first TRP / panel, TRP / panel 130-2 as the second TRP / panel, TRP / panel 130-3 as the third TRP / panel, and TRP / panel 130-4 as the fourth TRP / panel. Each TRP / panel 130 can provide multiple beams for communication with terminal device 110. Note that... Figure 1 The number of TRPs / panels shown is merely an example and not a limitation.

[0031] In some embodiments, the first TRP / panel and / or the second TRP / panel and / or the third TRP / panel and / or the fourth TRP / panel may be explicitly associated with different higher-level configuration identifiers. For example, a higher-level configuration identifier may be associated with a control resource set (CORESET), a reference signal (RS), a reference signal resource, a set of ports of the reference signal resource, or a transmission configuration indication (TCI) status, which is used to distinguish transmissions between different TRP / panels 130 and terminal device 110.

[0032] In some embodiments, before transmitting data to terminal device 110 (e.g., via TRP / panels 130-1 and / or 130-2 and / or 130-3 and / or 130-4), network device 120 may transmit control information associated with data transmission. For example, the control information may schedule a set of resources for data transmission and indicate various transmission parameters associated with data transmission, such as one or more TCI states, frequency domain resource allocation (FDRA), time domain resource allocation (TDRA) which may include slot offsets and start / length indicator values, demodulation reference signal (DMRS) groups, redundancy versions (RVs), as defined in the 3GPP specifications. It should be understood that the transmission parameters indicated in the control information are not limited to those listed above. Embodiments of this disclosure are equally applicable to control information including any transmission parameters.

[0033] In the context of this application, the terms "precoding matrix," "precoding," "beam," "beamforming," "vector," "first vector," "first basis," "first basis vector," "second vector," "second basis," "second basis vector," "third vector," "third basis," "codebook," and "precoder" are used interchangeably. The terms "vector," "bases," and "basis" are used interchangeably.

[0034] In the context of this application, the terms “pool,” “set,” “subset,” “group,” “unit,” and “subgroup” are used interchangeably.

[0035] In the context of this application, the terms “a codebook subset restriction”, “a CBSR”, “each of at least one codebook subset restriction”, “one of at least one codebook subset restriction”, “each of at least one CBSR”, “first bit graph” and “one of at least one CBSR” may be used interchangeably.

[0036] In the context of this application, the terms "index," "indicator," "indicator," "field," "bit segment," and "bitmap" are used interchangeably. The terms "physical resource block," "resource block," "PRB," and "RB" are used interchangeably. The terms "bit size," "size of bits," "number of bits," "size of field," "bit width," and "field size" are used interchangeably.

[0037] In the context of this application, the terms "precoder," "first vector," "CSI-RS port," "CSI-RS resource," "CSI-RS port group," "antenna port," "first beam," "beam," "first base," "first base vector," "spatial domain / SD base vector," "spatial domain / SD vector," "spatial domain / SD base (basis)," "spatial domain / SD bases," "spatial domain / SD base vector corresponding to CSI-RS resource," "spatial domain / SD vector corresponding to CSI-RS resource," "spatial domain / SD base (basis) corresponding to CSI-RS resource," "spatial domain / SD base (bases) corresponding to CSI-RS resource," "first base corresponding to CSI-RS resource," "spatial domain / SD base vector corresponding to CSI-RS port group," "spatial domain / SD vector corresponding to CSI-RS port group," "spatial domain / SD base (basis) corresponding to CSI-RS port group," "spatial domain / SD base (bases) corresponding to CSI-RS port group," "first base corresponding to CSI-RS port group," and "first base" are used interchangeably.

[0038] In the context of this application, the terms "precoder", "second vector", "first plurality of CSI-RS ports", "first plurality of CSI-RS resources", "first plurality of CSI-RS port group", "second beam", "beam", "second base", "second base vector", "second spatial domain / SD base vector", "second spatial domain / SD vector", "second spatial domain / SD base", "second spatial domain / SD bases", "one or more second vectors corresponding to the first plurality of CSI-RS resources" and "one or more second bases corresponding to the first plurality of CSI-RS resources" may be used interchangeably.

[0039] In the context of this application, the terms "precoder", "third vector", "second plurality of CSI-RS ports", "second plurality of CSI-RS resources", "second plurality of CSI-RS port groups", "third beam", "beam", "third base", "third base vector", "third spatial domain / SD base vector", "third spatial domain / SD vector", "third spatial domain / SD base", "third spatial domain / SD bases", "one or more third vectors corresponding to the second plurality of CSI-RS resources" and "one or more third bases corresponding to the second plurality of CSI-RS resources" may be used interchangeably.

[0040] In the context of this application, the terms "frequency domain / FD basis vector", "frequency domain / FD vector", "frequency domain / FD basis", "frequency domain / FD bases", "frequency domain / FD basis vector corresponding to CSI-RS resource", "frequency domain / FD vector corresponding to CSI-RS resource", "frequency domain / FD basis corresponding to CSI-RS resource", "frequency domain / FD bases corresponding to CSI-RS resource", "frequency domain / FD vector corresponding to the first or more CSI-RS resource", and "frequency domain / FD vector corresponding to the second or more CSI-RS resource" are used interchangeably.

[0041] In the context of this application, the terms "Doppler domain / DD basis vector", "Doppler domain / DD vector", "Doppler domain / DD basis", "Doppler domain / DD bases", "Doppler domain / DD basis vector corresponding to CSI-RS resource", "Doppler domain / DD vector corresponding to CSI-RS resource", "Doppler domain / DD basis corresponding to CSI-RS resource", "Doppler domain / DD bases corresponding to CSI-RS resource", "Doppler domain / DD vector corresponding to the first or more CSI-RS resource", and "Doppler domain / DD vector corresponding to the second or more CSI-RS resource" are used interchangeably. In the context of this application, the terms "Doppler domain", "time domain", "TD", and "DD" are used interchangeably.

[0042] In the context of this application, the terms "TRP", "TRP group", "CSI-RS resource", and "CSI-RS port group" are used interchangeably. In the context of this application, the terms "first plurality of CSI-RS resources" and "first plurality of CSI-RS port groups" are used interchangeably. In the context of this application, the terms "second plurality of CSI-RS resources" and "second plurality of CSI-RS port groups" are used interchangeably.

[0043] In the context of this application, the terms "report," "feedback," and "report" are used interchangeably. In the context of this application, the terms "based on," "corresponding to," "relating to," and "associated with" are used interchangeably.

[0044] In the context of this application, the terms “reference signal”, “RS”, “channel state information reference signal”, “reference signal resource”, “reference signal port”, “CSI-RS resource”, “CSI-RS port”, “port”, “antenna port” and “CSI-RS” may be used interchangeably.

[0045] In the context of this application, the terms "first value in the first dimension", "value of the first parameter", and "... "The first number of antenna ports" and "the first number of antenna ports in the first dimension" can be used interchangeably. In the context of this application, the terms "first value in the second dimension," "value of the second parameter," and "..." are also used interchangeably. "The second number of antenna ports" and "the first number of antenna ports in the second dimension" can be used interchangeably.

[0046] In the context of this application, the terms "second value in the first dimension", "value of the third parameter", and "... The terms "third number of antenna ports" and "second number of antenna ports in the first dimension" are used interchangeably. In the context of this application, the terms "second value in the second dimension," "value of the fourth parameter," and "second value in the second dimension" are used interchangeably. "The fourth number of antenna ports" and "the second number of antenna ports in the second dimension" can be used interchangeably.

[0047] In the context of this application, the terms "third value in the first dimension", "value of the fifth parameter", and "[other terms]" are used interchangeably. The terms "the fifth number of antenna ports" and "the third number of antenna ports in the first dimension" can be used interchangeably. In the context of this application, the terms "the third value in the second dimension," "the value of the sixth parameter," and "the third value in the second dimension" are also used interchangeably. "The sixth number of antenna ports" and "the third number of antenna ports in the second dimension" can be used interchangeably.

[0048] In the context of this application, the terms "first number of CSI-RS resources corresponding to the first dimension", "first number in the first dimension", "first number of CSI-RS resources in the first dimension", "first number corresponding to the first dimension" and "..." are used interchangeably. "These terms can be used interchangeably. In the context of this application, the terms 'first number of CSI-RS resources corresponding to the second dimension,' 'first number in the second dimension,' 'first number corresponding to the second dimension,' 'first number of CSI-RS resources in the second dimension,' and '..." "They can be used interchangeably."

[0049] In the context of this application, the terms "second number of CSI-RS resources corresponding to the first dimension", "second number in the first dimension", "second number of CSI-RS resources in the first dimension", "second number corresponding to the first dimension" and " "These terms can be used interchangeably. In the context of this application, the terms 'second number of CSI-RS resources corresponding to the second dimension,' 'second number in the second dimension,' 'second number corresponding to the second dimension,' 'second number of CSI-RS resources in the second dimension,' and '" are used interchangeably. "They can be used interchangeably."

[0050] In the context of this application, the terms “port”, “antenna port”, “CSI-RS port”, “reference signal port”, “multiple reference signal ports”, “port”, “antenna port” and “CSI-RS port” are used interchangeably.

[0051] In the context of this application, the terms “at least one precoder for limitation”, “at least one precoder for limitation of measurement report”, “limitation on at least one precoder”, “limitation on report of precoder”, “limitation on report of at least one precoder”, “limitation on PMI report”, “limitation on PMI report corresponding to precoder”, “limitation on PMI report corresponding to at least one precoder”, “limitation on precoder”, “limitation on at least one precoder”, “PMI report not allowed to correspond to precoder”, “PMI report not allowed to correspond to at least one precoder”, “PMI report not allowed to correspond to precoder”, “PMI report allowed to correspond to precoder”, “PMI report allowed to correspond to at least one precoder”, and “PMI report allowed to correspond to precoder” can be used interchangeably.

[0052] In the context of this application, the terms "elements of an indicator field", "parameter" and "indicator" are used interchangeably.

[0053] In the context of this application, the terms “CSI report”, “CSI report settings”, “CSI feedback”, “codebook”, “codebook configuration”, “precoder matrix indicator”, “PMI”, “PMI report”, “PMI report”, “precoder report”, “multiple precoder reports”, “precoder report”, “multiple precoder reports”, “measurement report” and “CSI” are used interchangeably.

[0054] In the context of this application, the terms "first plurality of CSI-RS resources", "first plurality of CSI-RS port groups", and " "One CSI-RS port group" and " The terms "second multiple CSI-RS resources" and "second multiple CSI-RS port groups" are used interchangeably. In the context of this application, the terms "second multiple CSI-RS resources" and "second multiple CSI-RS port groups" are used interchangeably. "One CSI-RS resource" and " The "CSI-RS port groups" can be used interchangeably.

[0055] In the context of this application, the terms "first vector with index", "first index", and "index of first vector" are used interchangeably. Similarly, in the context of this application, the terms "second vector with index", "second index", and "index of second vector" are used interchangeably.

[0056] In addition to normal data communication, network device 120 can send RS to terminal device 110 in the downlink. Similarly, terminal device 110 can send RS to network device 120 in the uplink. Generally, RS is a signal sequence (also called an "RS sequence") known to both network device 120 and terminal device 110. For example, the RS sequence can be generated and transmitted by network device 120 based on specific rules, and terminal device 110 can infer the RS sequence based on the same rules. For another example, the RS sequence can be generated and transmitted by terminal device 110 based on specific rules, and network device 120 can infer the RS sequence based on the same rules. Examples of RS may include, but are not limited to, downlink or uplink demodulation reference signal (DMRS), CSI-RS, sounding reference signal (SRS), phase tracking reference signal (PTRS), tracking reference signal (TRS), fine time-frequency tracking reference signal (TRS), CSI-RS for tracking, positioning reference signal (PRS), etc.

[0057] In addition to normal data communication, network device 120 can transmit DCI to terminal device 110 via PDCCH. DCI can indicate resource allocation for data transmission in DL or UL. Simultaneously, DMRS associated with PDCCH can also be transmitted from network device 120 to terminal device 110. DMRS can be used by terminal device 110 for channel demodulation. Terminal device 110 can then attempt blind decoding of the DCI in the PDCCH within a search space associated with a control resource set (CORESET). As used herein, "CORESET" and / or search space refers to the set of resource element groups (REGs) within which terminal device 110 attempts to blindly decode the DCI. The search space can be indicated to terminal device 110, indicating the start time and periodicity for monitoring the PDCCH in the CORESET. In response to successful decoding of the DCI, terminal device 110 can accordingly perform UL and / or DL ​​data transmission with network device 120 (e.g., data transmission via PDSCH and / or Physical Uplink Shared Channel (PUSCH)).

[0058] Network device 120 can transmit data and control information to terminal device 110 via multiple beams (also referred to as "DL beams"). Terminal device 110 can also transmit data and control information to network device 120 via multiple beams (also referred to as "UL beams"). In the 3GPP specification for New Radio (NR), beams are also defined and indicated by parameters of the Transmission Configuration Indicator (TCI). For example, a Transmission Configuration Indicator (TCI) field may exist in the DCI. The value of the TCI field may be referred to as a "TCI code point". A TCI code point may indicate one or more TCI states. Each TCI state contains parameters for configuring the quasi-co-address (QCL) relationship between one or two DL and / or UL reference signals and the DMRS port of the PDSCH, DMRS port of the PDCCH, DMRS port of the PUSCH, DMRS port of the PUCCH, SRS port of the SRS resource, or CSI-RS port of the CSI-RS resource.

[0059] Furthermore, in the following description, some interactions (e.g., configuration exchange, etc.) are performed between terminal device 110 and network device 120. It should be understood that these interactions can be implemented in a single signaling / message / configuration or multiple signaling / message / configurations, including system information, Radio Resource Control (RRC) messages, Downlink Control Information (DCI) messages, Uplink Control Information (UCI) messages, Media Access Control (MAC) control elements (CE), etc. This disclosure is not limited in this respect.

[0060] In some embodiments, terminal device 110 may receive at least one configuration from network device indicating the number of physical resource blocks (PRBs) in a bandwidth portion (BWP), the number of multiple subbands, the size of a subband, and the number of PRBs in a subband. For example, via RRC signaling.

[0061] In some embodiments, the terminal device 110 may be configured with a first plurality of CSI-RS resources or a first plurality of CSI-RS port groups. In some embodiments, the first plurality of CSI-RS resources or the first plurality of CSI-RS port groups may be configured for channel measurements in CSI reporting or PMI reporting. In some embodiments, the first plurality of CSI-RS resources may include One CSI-RS resource. In some embodiments, the first plurality of CSI-RS port groups may include A group of CSI-RS ports. In some embodiments, the first plurality of CSI-RS resources may be A plurality of CSI-RS resources. In some embodiments, the number of CSI-RS resources in the first plurality of CSI-RS resources may be [number missing]. In some embodiments, It can be a positive integer, and or or or or or In some embodiments, It can be at least one of {1, 2, 3, 4}, or at least one of {2, 3, 4}, or at least one of {1, 2, 3, 4, 6, 8, 12, 16}, or at least one of {1, 2, 3, 4, 6, 8, 10, 12, 14, 16}. In some embodiments, for each of the first plurality of CSI-RS resources, there may be P Each of the first plurality of CSI-RS resources may include a port. In some embodiments, each CSI-RS resource in the plurality of CSI-RS resources may include a port. P Each port. In some embodiments, for each CSI-RS port group in the first plurality of CSI-RS port groups, there may be P Each of the first plurality of CSI-RS port groups may include a plurality of ports. In some embodiments, each CSI-RS port group in the plurality of CSI-RS port groups may include a plurality of ports. P One port. In some embodiments, P It can be a positive integer. In some embodiments, P It can be at least one of {1, 2, 4, 8, 12, 16, 24, 32}. In some embodiments, P It can be at least one of {16, 24, 32}, or at least one of {12, 16, 24, 32}. In some embodiments, each CSI-RS resource or each CSI-RS port group may include the same number or different numbers of ports. In some embodiments, at least one configuration for CSI reporting may include or indicate a first plurality of CSI-RS resources or a first plurality of CSI-RS port groups for channel measurements for CSI reporting.

[0062] In some embodiments, there may be a number or total number of CSI-RS ports used for channel measurements in CSI reporting. In some embodiments, the number or total number of CSI-RS ports used for channel measurements in CSI reporting may be expressed as... In some embodiments, It can be a positive integer. For example, In some embodiments, the number or total number of CSI-RS ports used for channel measurements in CSI reporting may be based on... The value and P The value, for example, In some embodiments, It can be at least one of {48, 64, 96, 128}, or at least one of {36, 48, 64, 72, 96, 128, 256, 512, 1024}.

[0063] In some embodiments, the number or total number of CSI-RS ports used for channel measurements in CSI reporting may be included in at least one configuration, or may be configured by a network device. In some embodiments, the number or total number of CSI-RS ports may include a first plurality of CSI-RS port groups or include One CSI-RS port group.

[0064] In some embodiments, terminal device 110 may indicate, select, determine, or report a second plurality of CSI-RS resources based on a first plurality of CSI-RS resources. In some embodiments, the reporting or indication of the second plurality of CSI-RS resources may be included in a measurement report. In some embodiments, the second plurality of CSI-RS resources may be the same as the first plurality of CSI-RS resources. In some embodiments, the second plurality of CSI-RS resources may be a subset of the first plurality of CSI-RS resources. In some embodiments, the second plurality of CSI-RS resources may include... A number of CSI-RS resources. In some embodiments, the number of CSI-RS resources in the second plurality of CSI-RS resources can be [number missing]. In some embodiments, It can be a positive integer, and In some embodiments, or or In some embodiments, It can be at least one of {1, 2, 3, 4, 6, 8, 12, 16}, or at least one of {1, 2, 3, 4, 6, 8, 10, 12, 14, 16}. In some embodiments, It can be at least one of {1, 2, 3, 4}, or at least one of {2, 3, 4}, or at least one of {2, 3, 4, 6, 8, 12, 16}. In some embodiments, It can be less than or equal to In some embodiments, and These terms can be used interchangeably in this disclosure. For example, in at least one formula in this disclosure, It can be used replace.

[0065] In some embodiments, terminal device 110 may receive at least one configuration for a channel state information (CSI) report, wherein the at least one configuration may include configurations of a first plurality of channel state information reference signal (CSI-RS) resources and at least one codebook subset restriction. In some embodiments, each CSI-RS resource in the first plurality of CSI-RS resources may correspond to one codebook subset restriction in the at least one codebook subset restriction. In some embodiments, each codebook subset restriction in the at least one codebook subset restriction may correspond to one CSI-RS resource in the first plurality of CSI-RS resources.

[0066] In some embodiments, network device 120 may transmit at least one configuration for channel measurements in a channel state information (CSI) report, wherein the at least one configuration may include configurations of a first plurality of channel state information reference signal (CSI-RS) resources. In some embodiments, network device 120 may receive at least one codebook indicator from a terminal device's CSI report, wherein the at least one codebook indicator may include at least one of the following: a first plurality of first vectors, or a second plurality of second vectors, or a third plurality of third vectors.

[0067] In some embodiments, network device 120 may transmit to terminal device 110 at least one configuration for channel measurements in a Channel State Information (CSI) report, wherein the at least one configuration may include configurations of a first plurality of Channel State Information Reference Signal (CSI-RS) resources and at least one codebook subset restriction. In some embodiments, each CSI-RS resource in the first plurality of CSI-RS resources may correspond to one of the at least one codebook subset restrictions. In some embodiments, each codebook subset restriction in the at least one codebook subset restriction may correspond to one of the first plurality of CSI-RS resources. In some embodiments, network device 120 may receive from terminal device 110 at least one of the following: a first plurality of first vectors, a second plurality of second vectors, or a third plurality of third vectors from the CSI report of the terminal device.

[0068] In some embodiments, terminal device 110 may determine or report the number of layers and at least one codebook indicator to network device based on at least one configuration. In some embodiments, the number of layers (e.g., denoted as...) The number ) can be one of {1, 2}, {1, 2, 3, 4}, or {1, 2, 3, 4, 5, 6, 7, 8}. In some embodiments, multiple layers may exist, and each layer may have an index, wherein the index of a layer can be represented as... , It can be a non-negative integer. For example, .For example, It can be {1, 2, ...} Choose one of {1, 2}, {1, 2, 3, 4}, or {1, 2, 3, 4, 5, 6, 7, 8}.

[0069] In some embodiments, the value of the first value in the first dimension or the value of the first parameter of the antenna port configuration can be represented as .For example, It can be a positive integer. For example, It can be one of {2, 3, 4, 6, 8, 12, 16}. In some embodiments, the first value in the second dimension or the value of the second parameter of the antenna port configuration can be represented as... .For example, It can be a positive integer. For example, It can be any one of {1, 2, 3, 4}. In some embodiments, the first value in the first dimension and the first value in the second dimension can be configured in a higher-level (e.g., RRC) parameter, or can be included in at least one configuration. In some embodiments, the values ​​of the first parameter of the antenna port configuration and the values ​​of the second parameter of the antenna port configuration can be configured in a higher-level (e.g., RRC) parameter, or can be included in at least one configuration.

[0070] In some embodiments, the number of antenna ports for each CSI-RS resource in a first plurality of CSI-RS resources or a second plurality of CSI-RS resources can be determined based on a first value in a first dimension and a first value in a second dimension, or based on a value of a first parameter and a value of a second parameter of antenna port configuration. In some embodiments, the number of antenna ports for one CSI-RS resource in the first plurality of CSI-RS resources or the second plurality of CSI-RS resources can be... .

[0071] In some embodiments, the terminal device 110 may be configured with the number of PRBs for the bandwidth portion (BWP) or the size of the BWP. In some embodiments, the number of PRBs for the BWP (e.g., denoted as...) () can be a positive integer. For example, It can be a positive integer. For example, In some embodiments, the terminal device 110 may be configured with a starting position for the BWP (e.g., denoted as...). ).For example, It can be a non-negative integer. For example, In some embodiments, the starting position of the BWP and the number of PRBs used for the BWP can be configured in a higher-level parameter.

[0072] In some embodiments, a subband may correspond to a subband used for CQI, or a CQI subband or a CSI subband.

[0073] In some embodiments, the size of a subband or the number of PRBs in a subband can be expressed as ,and It is a positive integer. For example, .For example, It can be at least one of {4, 8, 16, 32}. In some embodiments, Based on The value of . In some embodiments, if , It can be 4 or 8. For example, based on a higher-level parameter used for the subband, It can be configured to 4 or 8. In some embodiments, if... , It can be 8 or 16. For example, based on the higher-level parameters used for the sub-band, It can be configured to 8 or 16. In some embodiments, if... , It can be 16 or 32. For example, based on the higher-level parameters used for the sub-band, It can be configured to 16 or 32.

[0074] In some embodiments, the terminal device may be configured with parameters for the codebook, or at least one configuration may include parameters for the codebook (e.g., denoted as...). ),and The value can be a positive integer. For example, It can be any one of {1, 2, 4, 8}. In some embodiments, if the second plurality of CSI-RS resources comprises only one CSI-RS resource, then The value can be 1, 2, or 4. In some embodiments, if the second plurality of CSI-RS resources includes more than one CSI-RS resource, then The value can be 1 or 2.

[0075] In some embodiments, nchoosek can be a function that selects k values ​​from n values. In some embodiments, nchoosek(a,b) = a! / (b!*(ab)!). In some embodiments, "!" can be a factorial. In some embodiments, a! = 1*2*…*(a-1)*a. In some embodiments, b! = 1*2*…*(b-1)*b. In some embodiments, (ab)! = 1*2*…*(ab-1)*(ab). In some embodiments, and / or It can be In some embodiments, a and / or b can be positive integers. In some embodiments, a can be greater than or not less than b. In some embodiments, In some embodiments, .

[0076] In some embodiments, the terminal device may receive at least one configuration via at least one of RRC, MAC CE, and DCI.

[0077] In some embodiments, a parameter "O1" may exist, and "O1" may represent a first Discrete Fourier Transform (DFT) oversampling in the first dimension. For example, "O1" may be at least one of {1, 2, 4, 8}. Alternatively, "O1" may be 2 or 4. In some embodiments, a parameter "O2" may exist, and "O2" may represent a second DFT oversampling in the second dimension. For example, "O2" may be at least one of {1, 2, 4, 8}. Alternatively, "O2" may be 2 or 4.

[0078] In some embodiments, A configuration can correspond to One configuration. In some embodiments, A configuration can correspond to One configuration. In some embodiments, and An example configuration could be at least one row and / or column from Table 1.

[0079] Table 1 and Supported configuration

[0080] refer to Figure 2 This illustrates a signaling flow 200 reporting at least one codebook indicator according to some embodiments of the present disclosure. For discussion purposes, reference will be made to... Figure 1 For example, signaling flow 200 can be discussed using terminal device 110 and network device 120. Note that... Figure 2 These are merely example embodiments.

[0081] Network device 120 can transmit (2010) at least one configuration for channel measurement for measurement reporting to terminal device 110. In other words, terminal device 110 can receive at least one configuration for channel measurement for measurement reporting from network device 120. For example, at least one configuration can be used for CSI measurement. In some embodiments, at least one configuration may include at least one of the following: a first plurality of CSI-RS resources for channel measurement for CSI reporting, and values ​​for the number of first vectors in a first plurality of first vectors and / or the number of second vectors in a second plurality of second vectors and / or the number of third vectors in a third plurality of third vectors (e.g., denoted as...). , (Can be a positive integer). For example, For example, .

[0082] In some embodiments, at least one configuration may include a first plurality of reference signal resources (e.g., The at least one codebook subset constraint includes a mode indication and at least one codebook subset constraint. In some embodiments, each codebook subset constraint may be associated with or correspond to one of the first plurality of reference signal resources. In some embodiments, each of the first plurality of reference signal resources may be associated with or correspond to or configured with a codebook subset constraint. In some embodiments, the number of reference signal resources in the first plurality of reference signal resources (e.g., ) can be limited to a number of at least one subset of the codebook (e.g., The same. In some embodiments, In some embodiments, at least one reference signal resource may exist in the first plurality of reference signal resources that is not configured with, does not correspond to, or is not associated with a codebook subset constraint. In some embodiments, the number of reference signal resources in the first plurality of reference signal resources (e.g., The number of codes can be no less than or greater than at least one codebook subset limit (e.g., In some embodiments, or In some embodiments, each of at least one subset of the codebook has an index. The codebook subset restriction can be associated with or correspond to an indexed CSI-RS resource in the first or more CSI-RS resources. One or more CSI-RS resources have an index A CSI-RS resource. In some embodiments, In some embodiments, In some embodiments, In some embodiments, In some embodiments, for the first plurality of CSI-RS resources that are not associated with or configured with a codebook subset restriction, an index is provided. A CSI-RS resource can be assumed to correspond to or be associated with an indexed resource. The codebook subset constraint or first bit map of the CSI-RS resource is all one or all zero. In some embodiments, for the first plurality of CSI-RS resources that are not associated with or configured with a codebook subset constraint and have an index A CSI-RS resource can be assumed to correspond to or be associated with an indexed resource. There are no restrictions on at least one precoder, at least one second vector, at least one first vector, or at least one third vector of the CSI-RS resources. In some embodiments, for the first plurality of CSI-RS resources, there is no restriction on the index of a codebook subset that is not associated with or configured. A CSI-RS resource can be assumed to correspond to or be associated with an indexed resource. All limitations of any precoder or any second vector or any first vector or any third vector of CSI-RS resources.

[0083] In some embodiments, at least one configuration for the measurement report may include a first value in the first dimension or a value of a first parameter (e.g., ) and the value of the first or second parameter in the second dimension (e.g. In some embodiments, at least one configuration for the measurement report may include a value of a second or third parameter in the first dimension (e.g., denoted as N). 1,t The value of the second or fourth parameter in the second dimension (e.g., denoted as N) 2,t ).

[0084] In some embodiments, the first value in the first dimension or the value of the first parameter (e.g., ) can represent, or may represent, the number of antenna ports or the number of CSI-RS ports corresponding to a CSI-RS resource in the first dimension or a first number of ports in the first dimension. In some embodiments, the value of the first value or the value of the second parameter in the second dimension (e.g., ) can represent the number of antenna ports or the number of CSI-RS ports corresponding to a CSI-RS resource in the second dimension or a first number of ports in the second dimension. In some embodiments, the value of the second or third parameter in the first dimension (e.g., represented as) () can represent the number of antenna ports or the number of CSI-RS ports corresponding to a first plurality of CSI-RS resources in the first dimension or a second number of ports in the first dimension. In some embodiments, the value of the second value or the fourth parameter in the second dimension (e.g., represented as) The number of ports may or may represent the number of antenna ports or the number of CSI-RS ports corresponding to a first plurality of CSI-RS resources in the second dimension or a second number of ports in the second dimension. In some embodiments, the number or total number of ports It can be .

[0085] In some embodiments, the value of the third or fifth parameter in the first dimension (e.g., denoted as...) () can represent, or may represent, the number of antenna ports or the number of CSI-RS ports corresponding to the second plurality of CSI-RS resources in the first dimension or the third number of ports in the first dimension. In some embodiments, the value of the third value or the sixth parameter in the second dimension (e.g., represented as) The number of ports (or CSI-RS ports) can represent the number of antenna ports or CSI-RS ports corresponding to a second plurality of CSI-RS resources or a third number of ports in the second dimension. In some embodiments, the number or total number of ports corresponding to the second plurality of CSI-RS resources can be represented as... ,and .

[0086] In some embodiments, each codebook subset constraint in at least one codebook subset constraint may be associated with one of a first plurality of CSI-RS resources. In some embodiments, each codebook subset constraint in at least one codebook subset constraint may be based on / associated with a first value in a first dimension and a first value in a second dimension. In some embodiments, the number of at least one codebook subset constraints may be [missing information]. , It can be a positive integer, for example ,or Fixed to 1 or fixed to .

[0087] In some embodiments, the first plurality of reference signal resources may be included in a set of reference signal resources. In some embodiments, the first plurality of reference signal resources may be in one time slot or in multiple adjacent time slots. In some embodiments, for each of the first plurality of reference signal resources, there exists a set of ports. For example, at least one configuration may include the first plurality of CSI-RS resources (e.g., (A plurality of CSI-RS resources). In some embodiments, the first plurality of CSI-RS resources may be a set of CSI-RS resources. In some embodiments, the first plurality of CSI-RS resources may be in one time slot or in T adjacent time slots, where T may be a positive integer. For example, 1 <= T <= 4 or 1 <= T <= 8. In some embodiments, for each CSI-RS resource in the first plurality of CSI-RS resources, there may be P ports (P may be 1, 2, 4, 8, 12, 16, 24, or 32). In some embodiments, It can be greater than 32. For example, For example, in the first multiple CSI-RS resources Each CSI-RS resource can have the same or different QCL assumptions (at least for QCL-TypeD, if supported). Figure 3A A schematic diagram of the CSI-RS resource pattern is shown, in which 64 ports are composed of two CSI-RS resources, and each CSI-RS resource includes 32 ports. Figure 3B A schematic diagram of an example CSI-RS resource pattern is shown, in which 128 ports are composed of four CSI-RS resources, and each CSI-RS resource includes 32 ports. Figure 3C A schematic diagram of another example CSI-RS resource pattern is shown, in which 128 ports are composed of four CSI-RS resources, and each CSI-RS resource includes 32 ports.

[0088] In some embodiments, at least one configuration may include at least one reference signal resource, and each of the at least one reference signal resource may include a port set, and the port set includes a first plurality of port groups. In some embodiments, at least one configuration may include at least one CSI-RS resource, and each of the at least one CSI-RS resource may include Ports, for example In some embodiments, A port can include a first plurality of ports (e.g., represented as...). (Number) port groups, It can be a positive integer. For example, .

[0089] In some embodiments, the first plurality of CSI-RS resources may include a first number of CSI-RS resources corresponding to a first dimension (or a first number of CSI-RS resources in the first dimension) (e.g., denoted as...). ) and the first number of CSI-RS resources corresponding to the second dimension (or the first number of CSI-RS resources in the second dimension) (e.g., denoted as In some embodiments, It can be a positive integer. For example, For example, .For example, It can be At least one of them. For example, It can be At least one of them. For example, It can be At least one of them. In some embodiments, It can be a positive integer. For example, For example, .For example, It can be At least one of them. For example, It can be At least one of them. For example, It can be At least one of them. In some embodiments, the value of the number of CSI-RS resources in the first plurality of CSI-RS resources (e.g., ) can be based on a first number of CSI-RS resources corresponding to the first dimension (e.g., ) and the first number of CSI-RS resources corresponding to the second dimension (e.g., ) and / or indication of the pattern. In some embodiments, a first number of CSI-RS resources corresponding to the first dimension (e.g., ) and / or the first number of CSI-RS resources corresponding to the second dimension (e.g., The value can be based on the number of CSI-RS resources in the first plurality of CSI-RS resources (or (value) and / or pattern.

[0090] In some embodiments, the indication or reporting of a second plurality of CSI-RS resources may include a second number of CSI-RS resources corresponding to the first dimension (e.g., ) and / or the second number of CSI-RS resources corresponding to the second dimension (e.g., In some embodiments, the indication or reporting of a second plurality of CSI-RS resources may include a value for the number of CSI-RS resources in the second plurality of CSI-RS resources (or...). (value).

[0091] In some embodiments, the second plurality of CSI-RS resources may include a second number of CSI-RS resources corresponding to the first dimension (or a second number of CSI-RS resources in the first dimension) (e.g., denoted as...). and the second number of CSI-RS resources corresponding to the second dimension (or the second number of CSI-RS resources in the second dimension) (e.g., denoted as...). In some embodiments, It can be a positive integer. For example, For example, .For example, It can be At least one of them. For example, It can be At least one of them. For example, It can be At least one of them. In some embodiments, It can be no greater than .For example, In some embodiments, It can be a positive integer. For example, For example, .For example, It can be At least one of them. For example, It can be At least one of them. For example, It can be At least one of them. In some embodiments, It can be no greater than .For example, In some embodiments, the value of the number of CSI-RS resources in the second plurality of CSI-RS resources (e.g., ) can be based on a second number of CSI-RS resources corresponding to the first dimension (e.g., ) and the second number of CSI-RS resources corresponding to the second dimension (e.g., ) and / or indications of patterns and / or indications or reports of a second plurality of CSI-RS resources. In some embodiments, a second number of CSI-RS resources corresponding to the first dimension (e.g., ) and / or the second number of CSI-RS resources corresponding to the second dimension (e.g., The value can be based on the number of CSI-RS resources in the second or more CSI-RS resources (or (values) and / or indications of the mode and / or indications or reports of a second or more CSI-RS resources.

[0092] In some embodiments, at least one configuration may include a first value in the first dimension (or the value of the first parameter or...) The value of the second dimension (or the value of the second parameter or the first value in the second dimension) The value), the indication of the mode, and the number of CSI-RS resources in the first plurality of CSI-RS resources (or (value).

[0093] In some embodiments, the number of CSI-RS resources in the first plurality of CSI-RS resources (or The value can be based on the first number of CSI-RS resources corresponding to the first dimension (e.g., ) and the first number of CSI-RS resources corresponding to the second dimension (e.g., In some embodiments, .

[0094] In some embodiments, the number of CSI-RS resources in the second plurality of CSI-RS resources (or The value can be based on a second number of CSI-RS resources corresponding to the first dimension (e.g., ) and the second number of CSI-RS resources corresponding to the second dimension (e.g., In some embodiments, .

[0095] In some embodiments, at least one configuration may include a first value in the first dimension (or the value of the first parameter or...) The value of the second dimension (or the value of the second parameter or the first value in the second dimension) The value of the first dimension, the second value of the first dimension (or the value of the third parameter or...) The value of the second dimension (or the value of the fourth parameter) and the second value of the second dimension (or the value of the fourth parameter) (value).

[0096] In some embodiments, the indication or report of a second or more CSI-RS resource in the measurement report may include a third value (or the value of the fifth parameter) in the first dimension. The value of the second dimension and the third value (or the value of the sixth parameter) (The value of the parameter). In some embodiments, the indication or report of a second plurality of CSI-RS resources in the measurement report may include a fifth parameter and a sixth parameter.

[0097] In some embodiments, It can be a positive integer. In some embodiments, It can be at least one of {4, 8, 12, 16, 24, 32, 64}, or at least one of {2, 3, 4, 8, 12, 16, 24, 32, 48, 64}. In some embodiments, It can be a positive integer. In some embodiments, It can be at least one of {2, 3, 4, 8, 12, 16, 24, 32, 64}, or at least one of {1, 2, 3, 4, 8}.

[0098] In some embodiments, It can be a positive integer. In some embodiments, It can be at least one of {4, 8, 12, 16, 24, 32, 64}, or at least one of {2, 3, 4, 8, 12, 16, 24, 32, 48, 64}. In some embodiments, It can be no greater than In some embodiments, It can be no less than In some embodiments, In some embodiments, It can be a positive integer. In some embodiments, It can be at least one of {2, 3, 4, 8, 12, 16, 24, 32, 64}, or at least one of {1, 2, 3, 4, 8}. In some embodiments, It can be no greater than In some embodiments, It can be no less than In some embodiments, .

[0099] In some embodiments, the pattern may be based on a first value in the first dimension (or the value of the first parameter or...) The value of the second dimension (or the value of the second parameter or the first value in the second dimension) The value of the first dimension, the second value of the first dimension (or the value of the third parameter or...) The value of the second dimension (or the value of the fourth parameter) and the second value of the second dimension (or the value of the fourth parameter) The value). In some embodiments, the first number of CSI-RS resources corresponding to the first dimension (e.g., It can be based on the first value in the first dimension (or the value of the first parameter or...) The value of the first dimension and the second value (or the value of the third parameter) and the value of the second parameter in the first dimension. (value). In some embodiments, In some embodiments, the first number of CSI-RS resources corresponding to the second dimension (e.g., It can be based on the first value in the second dimension (or the value of the second parameter or...) The value of the second dimension (or the value of the fourth parameter) and the second value of the second dimension (or the value of the fourth parameter) (value). In some embodiments, .

[0100] In some embodiments, the indication or reporting of a second or more CSI-RS resource in the measurement report may be based on a third value (or the value of the fifth parameter) in the first dimension. The value of the second dimension and the third value (or the value of the sixth parameter) The value of the first parameter or the first value in the first dimension (or the value of the first parameter or the first value in the first dimension) and / or the first value in the first dimension (or the value of the first parameter or the first value in the first dimension) The value of the second dimension and / or the first value of the second parameter or In some embodiments, the second number of CSI-RS resources corresponding to the first dimension (e.g., It can be based on the first value in the first dimension (or the value of the first parameter or...) The value of the first dimension and the third value (or the value of the fifth parameter) and the value of the third value in the first dimension. (value). In some embodiments, In some embodiments, the second number of CSI-RS resources corresponding to the second dimension (e.g., It can be based on the first value in the second dimension (or the value of the second parameter or...) The value of the second dimension and the third value (or the value of the sixth parameter) (value). In some embodiments, .

[0101] In some embodiments, at least one configuration may include a first value in the first dimension (or the value of the first parameter or...) The value of the second dimension (or the value of the second parameter or the first value in the second dimension) The value), and the first number of CSI-RS resources corresponding to the first dimension (e.g., ) and the first number of CSI-RS resources corresponding to the second dimension (e.g., ).

[0102] In some embodiments, the second value (or the value of the third parameter) in the first dimension or The value of the second parameter in the second dimension and / or the value of the fourth parameter. The value can be based on the first value in the first dimension (or the value of the first parameter or...). The value of the second dimension (or the value of the second parameter or the first value in the second dimension) The value) and pattern (or the first number of CSI-RS resources corresponding to the first dimension (e.g., ) and the first number of CSI-RS resources corresponding to the second dimension (e.g., ) or the number of CSI-RS resources in the first plurality of CSI-RS resources or (value).

[0103] In some embodiments, the second value (or the value of the third parameter) in the first dimension or The value can be based on the first value in the first dimension (or the value of the first parameter or...). The value) and the first number of CSI-RS resources corresponding to the first dimension (e.g., (or mode). In some embodiments, .

[0104] In some embodiments, the second value in the second dimension (or the value of the fourth parameter or...) The value can be based on the first value in the second dimension (or the value of the second parameter or...). The value) and the first number of CSI-RS resources corresponding to the second dimension (e.g., (or mode). In some embodiments, .

[0105] In some embodiments, the third value (or the value of the fifth parameter) in the first dimension or The value of the second dimension and / or the third value of the second dimension (or the value of the sixth parameter or) The value can be based on the first value in the first dimension (or the value of the first parameter or...). The value of the second dimension (or the value of the second parameter or the first value in the second dimension) The value) and indications or reports of a second or more CSI-RS resources in the pattern and / or measurement reports (or a second number of CSI-RS resources corresponding to the first dimension (e.g., ) and the second number of CSI-RS resources corresponding to the second dimension (e.g., The number of CSI-RS resources in a second or more CSI-RS resources or (value).

[0106] In some embodiments, the third value in the first dimension (or the value of the fifth parameter or...) The value can be based on the first value in the first dimension (or the value of the first parameter or...). The value) and the second number of CSI-RS resources corresponding to the first dimension (e.g., (or indications or reports to a second or more CSI-RS resource in the pattern and / or measurement report). In some embodiments, .

[0107] In some embodiments, the third value in the second dimension (or the value of the sixth parameter or...) The value can be based on the first value in the second dimension (or the value of the second parameter or...). The value) and the second number of CSI-RS resources corresponding to the second dimension (e.g., (or indications or reports to a second or more CSI-RS resource in the pattern and / or measurement report). In some embodiments, .

[0108] In some embodiments, terminal device 110 may determine (2010) a second value in the first dimension and a second value in the second dimension based on an indication of a mode, or it may determine the values ​​of a third parameter and a fourth parameter, or it may determine a second number of antenna ports in the first dimension and a second number of antenna ports in the second dimension. For example, terminal device 110 may determine a second value in the first dimension (e.g., denoted as N) based on an indication of a mode. 1,t The second value in the second dimension (e.g., denoted as N) 2,t In some embodiments, In some embodiments, and It is a positive integer. In some embodiments, In some embodiments, In some embodiments, In some embodiments, if at least one configuration includes a second value in the first dimension and a second value in the second dimension, the terminal device 110 can determine the first value in the first dimension and the first value in the second dimension. In some embodiments, the first value in the first dimension and the first value in the second dimension may correspond to one port (or CSI-RS port group) in a first plurality of port (or CSI-RS port) groups. In some embodiments, the first value in the first dimension and the first value in the second dimension may correspond to one CSI-RS resource in a first plurality of CSI-RS resources. In some embodiments, the second value in the first dimension and the second value in the second dimension may correspond to all ports of all CSI-RS resources or all CSI-RS ports or all port groups in the first plurality of port groups. In some embodiments, the third value in the first dimension and the third value in the second dimension may correspond to all ports of all CSI-RS resources or all CSI-RS ports or all port groups in the second plurality of port groups.

[0109] In some embodiments, the first value in the first dimension and the first value in the second dimension correspond to one of the first plurality of reference signal resources. In some embodiments, the second value in the first dimension and the second value in the second dimension correspond to all the reference signal resources in the first plurality of reference signal resources. In some embodiments, the third value in the first dimension and the third value in the second dimension correspond to reference signal resources in a second plurality of reference signal resources.

[0110] In some embodiments, the mode may indicate at least one of the following: a first number of reference signal resources corresponding to a first dimension (or a first number of CSI-RS resources corresponding to a first dimension or a first number in the first dimension or a first number of CSI-RS resources in the first dimension or The value) and the second number of reference signal resources corresponding to the second dimension (or the first number of CSI-RS resources corresponding to the second dimension or the first number in the second dimension or the first number of CSI-RS resources in the second dimension or The value of ), the number of reference signal resources in the first plurality of reference signal resources (or The value of the first dimension (or the value of the third parameter or the second value of the first dimension) The value of the second dimension (or the value of the fourth parameter) and the second value of the second dimension (or the value of the fourth parameter) The value of the reference signal resource in the first plurality of reference signal resources, the structure of the ports in the first plurality of port groups, the reference signal port index mapped to the first plurality of reference signal resources, or the reference signal port index mapped to the first plurality of port groups. For example, the pattern may indicate one or more of the following: The value and The value of the CSI-RS resource; the structure of the CSI-RS resource in the first plurality of CSI-RS resources; or the structure of the first plurality of port groups; or the CSI-RS port index mapped to the first plurality of CSI-RS resources; or the CSI-RS port index mapped to the first plurality of port groups. For example, the order of CSI-RS port mapping can be an ascending or descending order of the identifiers of the CSI-RS resources in the first plurality of CSI-RS resources, or an ascending or descending order of the configured CSI-RS resources in the first plurality of CSI-RS resources. In some embodiments, the order of CSI port mapping may be based on the following order: first CSI-RS resource -> second CSI-RS resource -> third CSI-RS resource (if any) -> fourth CSI-RS resource (if any) -> fifth CSI-RS resource (if any) -> sixth CSI-RS resource (if any) -> seventh CSI-RS resource (if any) -> eighth CSI-RS resource (if any), or based on the following order: first CSI-RS resource -> third CSI-RS resource -> second CSI-RS resource -> fourth CSI-RS resource, or based on the following order: first CSI-RS resource -> third CSI-RS resource -> fifth CSI-RS resource -> seventh CSI-RS resource -> second CSI-RS resource -> fourth CSI-RS resource -> sixth CSI-RS resource -> eighth CSI-RS resource.

[0111] In some embodiments, terminal device 110 may determine a second plurality of reference signal resources based on at least one configuration and / or a first plurality of reference signal resources. In some embodiments, the second plurality of reference signal resources may be the same as or a subset of the first plurality of reference signal resources. For example, terminal device 110 may determine a second plurality of CSI-RS resources (or a second plurality of port groups), wherein the second plurality of CSI-RS resources (or the second plurality of port groups) may be the same as or a subset of the first plurality of CSI-RS resources (or the first plurality of port groups).

[0112] In some embodiments, the index of a CSI-RS resource among the first plurality of CSI-RS resources can be represented as: ,in It can be a non-negative integer. In some embodiments, In some embodiments, an index is provided. The CSI-RS resource can be the first of a plurality of CSI-RS resources. A plurality of CSI-RS resources. In some embodiments, the index of a CSI-RS resource in a second plurality of CSI-RS resources can be represented as: ,in It can be a non-negative integer. In some embodiments, In some embodiments, an index is provided. The CSI-RS resource can be the first of a plurality of CSI-RS resources. One CSI-RS resource. In some embodiments, The value can be based on The value and The value, or based on the first number corresponding to the first dimension (e.g., The index of CSI-RS resources and the first number corresponding to the second dimension (e.g., An index of CSI-RS resources. In some embodiments, It can be a non-negative integer. For example, In some embodiments, It can be a non-negative integer. For example, In some embodiments, In some embodiments, In some embodiments, In some embodiments, In some embodiments, an index is provided. The CSI-RS resource can be the ( )th of the first number of CSI-RS resources corresponding to the first dimension. ) CSI-RS resources. In some embodiments, an index is provided. The CSI-RS resource can be the ( )th of the first number of CSI-RS resources corresponding to the second dimension. ) CSI-RS resources. In some embodiments, The value can be based on The value and The value, or based on a second number corresponding to the first dimension (e.g., The index of CSI-RS resources and the second number corresponding to the second dimension (e.g., An index of CSI-RS resources. In some embodiments, In some embodiments, In some embodiments, In some embodiments, In some embodiments, an index is provided. The CSI-RS resource can be the ( )th of the second number of CSI-RS resources corresponding to the first dimension. ) CSI-RS resources. In some embodiments, an index is provided. The CSI-RS resource can be the ( )th of the second number of CSI-RS resources corresponding to the second dimension. ( ) CSI-RS resources. In some embodiments, having or corresponding to an index and The CSI-RS resource can be the ( )th of the first number of CSI-RS resources corresponding to the first dimension. ) CSI-RS resources and the ()th CSI-RS resources corresponding to the first number of the second dimension ( ) CSI-RS corresponding to each CSI-RS resource.

[0113] In some embodiments, the second value in the first dimension (e.g., denoted as N) can be determined based on a pattern. 1,t The second value in the second dimension (e.g., denoted as N) 2,t In some embodiments, a first value in the first dimension (e.g., denoted as N1) and a first value in the second dimension (e.g., denoted as N2) may correspond to one of the first plurality of CSI-RS resources. In some embodiments, a second value in the first dimension (e.g., denoted as N...) 1,t The second value in the second dimension (e.g., denoted as N) 2,t This can correspond to all CSI-RS resources in the first plurality of CSI-RS resources. In some embodiments, In some embodiments, In some embodiments, In some embodiments, the third value in the first dimension (e.g., denoted as N) 1,s ) and the third value in the second dimension (e.g., denoted as N) 2,s This can correspond to a CSI-RS resource in a second or more CSI-RS resource, wherein the second or more CSI-RS resource includes One CSI-RS resource. In some embodiments, It can be a positive integer. In some embodiments, In some embodiments, . Figure 4A A schematic diagram of an example CSI-RS resource pattern is shown, in which the first plurality of CSI-RS resources may include 4 CSI-RS resources or 4 port groups. Figure 4B A schematic diagram of another example CSI-RS resource pattern is shown, wherein the first plurality of CSI-RS resources may include 4 CSI-RS resources or 4 port groups, and the second plurality of CSI-RS resources may include 2 CSI-RS resources or 2 port groups.

[0114] In some embodiments, a first value in the first dimension (e.g., denoted as N1) and a first value in the second dimension (e.g., denoted as N2) can be determined based on a pattern. In some embodiments, the first value in the first dimension (e.g., denoted as N1) and the first value in the second dimension (e.g., denoted as N2) can correspond to one of a first plurality of port groups. In some embodiments, a second value in the first dimension (e.g., denoted as N...) 1,t The second value in the second dimension (e.g., denoted as N) 2,t This can correspond to all ports of all CSI-RS resources in the first plurality of CSI-RS resources (or all port groups in the first plurality of port groups). In some embodiments, In some embodiments, In some embodiments, the third value in the first dimension (e.g., denoted as N) 1,s ) and the third value in the second dimension (e.g., denoted as N) 2,s () can correspond to all port groups in a second plurality of port groups, or to all ports of all CSI-RS resources in a second plurality of CSI-RS resources, wherein the second plurality of port groups may include A port group, or a second or more CSI-RS resources, may include One CSI-RS resource. In some embodiments, It can be a positive integer. In some embodiments, In some embodiments, In some embodiments, .

[0115] Return to reference Figure 2 Terminal device 110 can transmit (2030) a measurement report to network device 120 based on at least one configuration, a second value in the first dimension, and a second value in the second dimension. In other words, network device 120 can receive a measurement report from terminal device 110.

[0116] In some embodiments, the measurement report includes a second plurality of second vectors, wherein each second vector may be based on a second value in a first dimension and a second value in a second dimension. In some embodiments, a limitation on the reporting of a precoder or PMI report based on or corresponding to at least one second vector may be determined based on at least one codebook subset limitation. In some embodiments, the measurement report includes a third plurality of third vectors, wherein each third vector may be based on a third value in a first dimension and a third value in a second dimension. In some embodiments, a limitation on the reporting of a precoder or PMI report based on or corresponding to at least one third vector may be determined based on at least one codebook subset limitation. In some embodiments, each codebook subset limitation may be associated with at least one first vector, or may be associated with a first value in a first dimension and a second value in a second dimension. In some embodiments, a first vector may be based on a first value in a first dimension and a first value in a second dimension. In some embodiments, a limitation on the precoder used for the measurement report may be based on a first value in the first dimension (or...) The value of the second dimension and / or the first value of the second dimension (or The value) and / or the first number of reference signal resources corresponding to the first dimension (or The value) and / or the first number of reference signal resources corresponding to the second dimension (or The value) and / or the mode and / or the number of reference signal resources in the first plurality of reference signal resources (or The value) and / or the second value in the first dimension (or ) and / or the second value in the second dimension (or ) and / or the second number of reference signal resources corresponding to the first dimension (or The value) and / or the second number of reference signal resources corresponding to the second dimension (or The value of) and / or the number of reference signal resources in the second or more reference signal resources (or The value) and / or the third value in the first dimension (or The value) and / or the third value in the second dimension (or The value). In some embodiments, one of the codebook subset constraints in at least one codebook subset constraint may be a first-bit graph, and the number of bits in the first-bit graph may be In some embodiments, This can represent the first value in the first dimension. In some embodiments, This can represent the first value in the second dimension. In some embodiments, These can represent the parameter corresponding to the first value in the first dimension and the parameter corresponding to the first value in the second dimension, respectively.

[0117] In some embodiments, restrictions on at least one precoder, or restrictions on the reporting of at least one precoder, or restrictions on PMI reporting, or restrictions on at least one first vector, or restrictions on at least one second vector, or restrictions on at least one third vector (or at least one first vector, at least one second vector, or at least one third vector) corresponding to at least one precoder may be applied to measurement reports. In some embodiments, at least one precoder (or at least one first vector, at least one second vector, or at least one third vector) may be restricted based on at least one subset of the codebook. In some embodiments, restrictions on at least one precoder, or restrictions on the reporting of at least one precoder, or restrictions on PMI reporting, or restrictions on at least one first vector, or restrictions on at least one second vector, or restrictions on at least one third vector corresponding to at least one precoder may be that PMI reporting corresponding to at least one precoder (or at least one first vector, at least one second vector, or at least one third vector) is not allowed in measurement reports.

[0118] In some embodiments, the measurement report may include a second plurality of second vectors, wherein each second vector may be based on a second value in a first dimension and a second value in a second dimension (or the measurement report may include a third plurality of third vectors, wherein each third vector may be based on a third value in a first dimension and a third value in a second dimension), and may determine, based on at least one codebook subset constraint, a constraint on at least one precoder or a constraint on at least one first vector or a constraint on at least one second vector or a constraint on at least one third vector or a constraint on the precoder report or a constraint on the PMI report corresponding to at least one precoder (or corresponding to at least one first vector or corresponding to at least one second vector or at least one third vector). In some embodiments, each codebook subset constraint in at least one codebook subset constraint may be associated with at least one first vector. In some embodiments, a first vector may be based on or associated with a first value in a first dimension and a first value in a second dimension. In some embodiments, a constraint on the precoder report for the measurement report (or for a first plurality of CSI-RS resources) (or a constraint on the PMI report corresponding to the precoder or a constraint on at least one precoder or a constraint on at least one first vector or a constraint on at least one second vector or a constraint on at least one third vector) may be based on a first value in the first dimension (e.g., ), the first value in the second dimension (e.g., ) and the second value in the first dimension (or The value) and the second value in the second dimension (or (or) (value).

[0119] In some embodiments, one of the codebook subset constraints in at least one codebook subset constraint may be a first-bit graph, and the number of bits in the first-bit graph may be... In some embodiments, the bit sequence in the first bit diagram can be ,in It can be the least significant bit (LSB), and It can be the most significant bit (MSB).

[0120] In some embodiments, value-based... , and The second set of vectors. The number of vectors in this second set can be... In some embodiments, a second vector may be a vector having a length A vector or having a value A vector. In some embodiments, a second vector can be represented as : ,

[0121] in , .

[0122] In some embodiments, there may be a second value based on the first dimension, a second value based on the second dimension, and... The value and The second vector set of values.

[0123] In some embodiments, a second bitmap or a codebook subset constraint determined from at least one codebook subset constraint may be applied to a pre-encoder constraint of a measurement report (or a constraint for a PMI report corresponding to a pre-encoder, or a constraint on at least one pre-encoder, or a constraint on at least one first vector, or a constraint on at least one second vector, or a constraint on at least one third vector). In some embodiments, a bit in the applied codebook subset constraint or second bitmap may indicate whether a report is allowed to correspond to a set of second vectors (or a set of third vectors). In some embodiments, a bit in the applied codebook subset constraint or second bitmap may be associated with or correspond to a set of second vectors (or a set of third vectors). In some embodiments, the set of second vectors (or the set of third vectors) may be included in at least one pre-encoder or at least one second vector (or at least one third vector) for measurement report constraints. In some embodiments, a bit in the applied codebook subset constraint or second bitmap may indicate whether a report (or PMI report) is allowed to correspond to any or at least one vector in the set of second vectors (or the set of third vectors). In some embodiments, the applied codebook subset restriction or a bit with a value of 0 (or 1) in the second bitmap may indicate that a report is not allowed to correspond to any or at least one vector in the set of second vectors (or the set of third vectors). In some embodiments, the applied codebook subset restriction or a bit with a value of 0 (or 1) in the second bitmap may indicate that a report (or PMI report) is not allowed to correspond to any precoder that corresponds to or is associated with any or at least one vector in the set of second vectors (or the set of third vectors).

[0124] In some embodiments, a set of second vectors may include multiple second vectors. In some embodiments, a set of second vectors may include A second vector. In some embodiments, It can be a positive integer. In some embodiments, or In some embodiments, Can be with Same. In some embodiments, In some embodiments, a set of third vectors may include multiple third vectors. In some embodiments, a set of third vectors may include... A third vector. In some embodiments, It can be a positive integer. In some embodiments, or In some embodiments, Can be with Same. In some embodiments, .

[0125] In some embodiments, a codebook subset restriction (e.g., configured to be associated with or correspond to one of the first plurality of CSI-RS resources) can be at least one of the following: n1-n2, two-one-Type I-SinglePanel-Restriction, two-two-Type I-SinglePanel-Restriction, four-one-Type I-SinglePanel-Restriction, three-two-Type I-SinglePanel-Restriction, six-one-Type I-SinglePanel-Restriction, four-two-Type I-SinglePanel-Restriction, eight-one-Type I-SinglePanel-Restriction. Type I Single Panel Restriction, four-three Type I Single Panel Restriction, six-two Type I Single Panel Restriction, twelve-one Type I Single Panel Restriction, four-four Type I Single Panel Restriction, eight-two Type I Single Panel Restriction, sixteen-one Type I Single Panel Restriction, n1-n2 Type I Single Panel Restriction. - -Type I-Single Panel-Restrictions ( - -TypeI-SinglePanel-Restriction), TypeI-SinglePanel-codebookSubsetRestriction-i2, TypeI-SinglePanel-ri-Restriction. - -Type I-Single Panel-Restrictions ( - -TypeI-SinglePanel-Restriction), ng-n1-n2, two-two-one-TypeI-MultiPanel-Restriction, two-four-one-TypeI-MultiPanel-Restriction, four-two-one-TypeI-MultiPanel-Restriction, two-two-two-TypeI-MultiPanel-Restriction -two-TypeI-MultiPanel-Restriction), two-eight-one-TypeI-MultiPanel-Restriction, four-four-one-TypeI-MultiPanel-Restriction, two-four-two-TypeI-MultiPanel-Restriction, four-two-two-TypeI-MultiPanel-Restriction o-TypeI-MultiPanel-Restriction, ri-Restriction (e.g., for multi-panel restriction), n1-n2-codebookSubsetRestriction, typeII-RI-Restriction, typeII-PortSelectionRI-Restriction, eight-three-TypeI-SinglePanel-Restriction striction), eight-four-typeI-SinglePanel-Restriction, twelve-two-typeI-SinglePanel-Restriction, twelve-three-typeI-SinglePanel-Restriction, twelve-four-typeI-SinglePanel-Restriction.Sixteen-two-Type I-SinglePanel-Restriction, sixteen-three-Type I-SinglePanel-Restriction, and sixteen-four-Type I-SinglePanel-Restriction. In some embodiments, n1 can be... Same. In some embodiments, n2 can be the same as... The same. In some embodiments, n1 can be at least one of {1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 64, 128}, or at least one of {one, two, three, four, six, eight, twelve, sixteen, twenty-four, thirty-two, sixty-four, one hundred and twenty-eight}. In some embodiments, n2 can be at least one of {1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 64, 128}, or at least one of {one, two, three, four, six, eight, twelve, sixteen, twenty-four, thirty-two, sixty-four, one hundred and twenty-eight}, or at least one of {one, two, three, four, six, eight}. In some embodiments, ng can be at least one of {1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 64, 128}, or at least one of {one, two, three, four, six, eight, twelve, sixteen, twenty-four, thirty-two, sixty-four, one hundred and twenty-eight}, or at least one of {one, two, three, four, six, eight}.

[0126] In some embodiments, the number of bits in the second bitmap can be In some embodiments, the bit sequence in the second bitmap can be ,in It can be the least significant bit (LSB), and It can be the most significant bit (MSB). In some embodiments, the second bitmap can be based on at least one first bitmap corresponding to at least one codebook subset constraint. In some embodiments, the second bitmap can be the same as a bitmap (or first bitmap) corresponding to or associated with one of the at least one codebook subset constraints.

[0127] In some embodiments, bits in the second bitmap or the first bitmap It can be used with a set of second vectors (or a set of third vectors). Or based on the second vector of this set All precoders (or all precoders based on at least one third vector in the set) are associated with at least one second vector in the set. In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, This can represent the first number of reference signal resources corresponding to the first dimension, and This can represent a first number of reference signal resources corresponding to the second dimension. In some embodiments, This can represent the second number of reference signal resources corresponding to the first dimension, and This can represent a second number of reference signal resources corresponding to the second dimension. In some embodiments, if bits If the value is zero, the precoder matrix index (PMI) report or measurement report may not be allowed to correspond to a set of second vectors (or a set of third vectors) associated with that bit. The precoder of any one or at least one vector (or any precoder or at least one precoder or a second vector or any second vector or at least one second vector or a third vector or at least one third vector).

[0128] In some embodiments, a first bitmap or a codebook subset constraint from (or selected from) at least one codebook subset constraint may be applied, and a bit in the applied codebook subset constraint (or the applied first bitmap) may indicate whether a report is allowed corresponding to a set of second vectors (or precoders or any precoders or at least one precoders or second vectors or any second vectors or at least one second vectors or third vectors or any third vectors or at least one third vector) based on any one or at least one vector in a set of second vectors (or any one or at least one vector in a set of third vectors). In some embodiments, bits in the second bitmap or the applied first bitmap or the applied codebook subset constraint ( , A vector can be associated with any precoder (or any precoder or at least one precoder or a second vector or any second vector or at least one second vector or a third vector or any third vector or at least one third vector) based on any or at least one of a set of second vectors, or based on any or at least one of a set of third vectors, or based on a set of second vectors. or based on a set of third vectors or based on a set of second vectors Any one or more vectors, or based on a set of third vectors Any one or at least one vector. In some embodiments, a set of second vectors (or a set of third vectors) may include multiple second vectors (or multiple third vectors). In some embodiments, a set of second vectors (or a set of third vectors) may include A second vector (or a third vector). In some embodiments, It can be a positive integer. In some embodiments, or or or In some embodiments, Can be with or Same. In some embodiments, or In some embodiments, the second vector in the group of second vectors may be a continuous vector corresponding to the first dimension and / or the second dimension. In some embodiments, the second vector in the group of second vectors may be a continuous vector corresponding to the first dimension. In the second dimension, a continuous vector A set of continuous vectors. In some embodiments, the third vector in this set of third vectors may be a continuous vector corresponding to the first dimension and / or the second dimension. In some embodiments, the third vector in this set of third vectors may be a continuous vector corresponding to the first dimension. In the second dimension, a continuous vector A continuous vector. In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, if bits If the value is zero, the PMI report may not be allowed to correspond to a second vector based on or associated with that bit. Any one of the vectors or at least one vector (or a set of third vectors) Any precoder (any one or at least one vector). In some embodiments, if there is more than one indication of a codebook subset restriction, the terminal device 110 may assume that all indications or all bits in the first bit diagram of more than one codebook subset restriction are the same. In some embodiments, it may be assumed or expected that the value or bitmap corresponding to the rank indicator (RI) restriction or codebook subset restriction-i2 (e.g., type I-SinglePanel-codebookSubsetRestriction-i2, type I-SinglePanel-ri-Recstriction, ri-Restriction, type II-RI-Restriction, type II-PortSelectionRI-Restriction) in each codebook subset restriction is the same. In some embodiments, at least one rank indicator (RI) restriction or codebook subset restriction-i2 (e.g., type I-SinglePanel-codebookSubsetRestriction-i2, type I-SinglePanel-ri-Restriction, ri-Restriction, type II-RI-Restriction, type II-PortselectionRI-Restriction) can be combined, aggregated, or cascaded for use in measurement reporting.In some embodiments, the number of bits in a codebook subset restriction (RI restriction or codebook subset restriction-i2) (e.g., type I-SinglePanel-codebookSubsetRestriction-i2, type I-SinglePanel-ri-Recstriction, ri-Restriction, type II-RI-Restriction, type II-PortselectionRI-Restriction) can be [number of bits]. , It can be a positive integer. For example, .For example, For example, or In some embodiments, the number of bits used to limit the RI or codebook subset restriction-i2 of CSI reports based on a first plurality of CSI-RS resources can be , It can be a positive integer. For example, .For example, In some embodiments, a first codebook subset constraint (or a codebook subset constraint corresponding to the CSI-RS resource with the lowest or highest ID, or a first configured codebook subset constraint, or a last codebook subset constraint, or a last configured codebook subset constraint) may be applied (e.g., other indications or other codebook subset constraints are ignored). In some embodiments, the applied bitmap or second bitmap may be determined based on the union or intersection or AND or OR operation of at least one bitmap corresponding to at least one codebook subset constraint. In some embodiments, bits in the applied bitmap or second bitmap or in the applied codebook subset constraint The value can be based on the corresponding bit in at least one subset of the codebook. (or …or The AND or OR operation is performed on the values ​​of ). In some embodiments, It can be the ( )th of at least one subset of the codebook. ) A subset of codebooks with indexes In some embodiments, ) bits. It can be an index in the first codebook subset constraint of at least one codebook subset constraint. In some embodiments, ) bits. It can be an index in the second codebook subset constraint that is at least one codebook subset constraint. In some embodiments, ) bits. =1. In some embodiments, =0. In some embodiments, =0. In some embodiments, =0. In some embodiments, =1. In some embodiments, =1. In some embodiments, =1. In some embodiments, =0. In some embodiments, a bit in one of the codebook subset restrictions indicates whether a report is allowed to correspond to a first vector, a set of second vectors, or a set of third vectors.

[0129] In this disclosure, the term "at least one codebook subset restriction of the ( ") codebook subset restriction", "associated with or corresponding to the ()th codebook subset in the first plurality of CSI-RS resources" "Codebook subset restriction of the ( ) CSI-RS resource", "Associated with or corresponding to the ( ) of the second or more CSI-RS resources" "Codebook subset restriction of the first CSI-RS resource", "Associated with or corresponding to the ( )th CSI-RS resource in the first plurality of CSI-RS resources" "codebook subset restriction of the ()th CSI-RS resource" and "associated with or corresponding to the ()th of the second or more CSI-RS resources". The "codebook subset limit of ) CSI-RS resources" can be used interchangeably.

[0130] In some embodiments, a third bitmap determined from at least one codebook subset constraint, or a complete codebook subset constraint, or a combined, aggregated, or cascaded codebook subset constraint, can be applied to the constraints of the precoder in a measurement report (or to the constraints of a PMI report corresponding to the precoder, or to at least one precoder, or to at least one first vector, or to at least one second vector, or to at least one third vector). In some embodiments, the third bitmap, or a complete codebook subset constraint, or a combined, aggregated, or cascaded codebook subset constraint, can be based on a combination, combination, cascade, or aggregate of at least one codebook subset constraint. In some embodiments, the number of bits in the third bitmap can be... or In some embodiments, the bit sequence in the third bitmap can be or ,in It can be the least significant bit (LSB), and or It can be the most significant bit (MSB).

[0131] In some embodiments, the third bitmap may be based on a combination, concatenation, or aggregation of at least one first bitmap corresponding to at least one codebook subset constraint. In some embodiments, the applied bitmap or third bitmap or the applied codebook subset constraint may be { }or{ }or{ In some embodiments, It can be a non-negative integer. In some embodiments, In some embodiments, or In some embodiments, It can be the ( ) in the first graph corresponding to at least one codebook subset constraint. ) codebook subset constraint or at least the ()th codebook subset constraint A subset of codebooks with an index ( In some embodiments, ) bits. It can be the first codebook subset constraint in at least one codebook subset constraint or the first codebook subset constraint in at least one codebook subset constraint in the first-bit diagram, which has an index ( In some embodiments, ) bits. It can be the second codebook subset constraint corresponding to at least one codebook subset constraint in the first diagram, or the second codebook subset constraint with an index in at least one codebook subset constraint. In some embodiments, ) bits. It can be a first-bit map corresponding to a first codebook subset constraint in at least one codebook subset constraint. In some embodiments, It can be a first-bit map corresponding to a second codebook subset constraint in at least one codebook subset constraint. In some embodiments, It can be the ( ) in at least one subset of the codebook. The first bit of the codebook subset is restricted to the first bit of the codebook.

[0132] In some embodiments, bits in a third bitmap or a combination / aggregation / concatenation bitmap or a subset of a combination / aggregation / concatenation codebook are restricted. , It can be based on a second vector. All precoders (or precoders or any precoder or at least one precoder or second vector or any second vector or at least one second vector or third vector or any third vector or at least one third vector) are associated. In some embodiments, bits in a third bitmap or a combination / aggregate / concatenated bitmap or a combination / aggregate / concatenated codebook subset are restricted. , It can be based on a third vector. Associated with all precoders (or precoders or any precoders or at least one precoder or second vectors or any second vectors or at least one second vectors or third vectors or any third vectors or at least one third vector).

[0133] In some embodiments, the ( ) in at least one codebook subset restriction Bits in the first bit of the codebook subset constrained Or used to correspond to the () Bits in the first bit diagram constrained by a subset of the codebook of a plurality of reference signal resources (e.g., in the first plurality of CSI-RS resources). It can correspond to or be based on a second vector or a third vector. All precoders or any precoder associated with it. In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments, , In some embodiments or or In some embodiments, This indicates the number of codebook subset constraints in at least one codebook subset constraint. In some embodiments, This indicates the number of reference signal resources in the first plurality of reference signal resources. For example, if the ( Bits in a subset of the codebook The value or if used with the ( Bits in a bitmap constrained by a codebook subset corresponding to each reference signal resource. If the value is zero, the PMI report may not be allowed to correspond to a precoder or any precoder that corresponds to or is based on a second (or third) vector associated with that bit. .

[0134] In some embodiments, bits in the first bit diagram for at least one codebook subset constraint in a codebook subset constraint Or used for bits in the first bit diagram corresponding to a codebook subset constraint of a first reference signal resource (e.g., in a first plurality of CSI-RS resources). It can correspond to or be based on a second vector or a third vector. All precoders or any precoder associated with, where , In some embodiments, bits in the first bit diagram for a second codebook subset constraint in at least one codebook subset constraint. Or bits in the first bit diagram corresponding to a codebook subset constraint of a second reference signal resource (e.g., in a first plurality of CSI-RS resources). It can correspond to or be based on a second vector or a third vector. All precoders or any precoder associated with it. For example, , For example, , In some embodiments, bits in the first bit diagram of a third codebook subset constraint for at least one codebook subset constraint. Or used for bits in the first bit diagram corresponding to a codebook subset constraint of a third reference signal resource (e.g., in a first plurality of CSI-RS resources). It can correspond to or be based on a second vector or a third vector. All precoders or any precoder associated with it. For example, , For example, , In some embodiments, bits in the first bit diagram of a fourth codebook subset constraint for at least one codebook subset constraint. Or bits in the first bit diagram corresponding to a codebook subset constraint of a fourth reference signal resource (e.g., in a first plurality of CSI-RS resources). It can correspond to or be based on a second vector or a third vector. All precoders or any precoder associated with it. For example, , .

[0135] In some embodiments, the ( ) is used to correspond to the first number of CSI-RS resources corresponding to the first dimension. The ()th CSI-RS resource and the ()th CSI-RS resource corresponding to the first number of CSI-RS resources of the second dimension Bits in the first bit diagram of a subset of the codebook of CSI-RS resources Or used to correspond to having or corresponding to an index and Bits in the first bit graph of a codebook subset of a CSI-RS resource (e.g., in the first plurality of CSI-RS resources). It can be associated with or based on a second vector or a third vector. All precoders or any precoder associated with, where , .

[0136] In some embodiments, or One bit in one of the codebook subset restrictions can indicate whether a report (or PMI report or precoder) is allowed, corresponding to a second vector (or a third vector), for the ( ) of (among them) or Bits in a bitmap restricted by a subset of the codebook It can be based on a second vector or a third vector. Associated with all precoders (or any precoder), where , In some embodiments, if the ( Bits in codebook subset constraints If the value is zero, then the PMI report may not be allowed to correspond to a second vector associated with that bit. Any precoder. In some embodiments, each codebook subset limit in at least one codebook subset limit may be associated with or configured for a CSI-RS resource or a set of ports. In some embodiments, if A configuration can have at least one CSI-RS resource or at least one set of ports without codebook subset restrictions. For example, there is no restriction on the second vector corresponding to a bitmap associated with at least one CSI-RS resource (or the bitmap is all one). As another example, a configured CBSR is applied to a CSI-RS resource in a configuration without codebook subset restrictions, such as the CBSR associated with the first CSI-RS resource (or the CBSR with the lowest / highest ID) of the configuration.

[0137] In some example implementations, codebook configuration can be configured in CSI-ReportConfig or CSI-ResourceConfig. Table 2 shows examples of codebook configurations.

[0138] Table 2

[0139] In some embodiments, this mode can be configured in CSI-ReportConfig, CSI-ResourceConfig, or codebookConfig. For example, if in codebookConfig, the configuration mode for CSI-RS resources in a second or more CSI-RS resources should be the same, or the first mode should be applied. Table 3 below shows examples of mode configurations.

[0140] Table 3

[0141] In some embodiments, , , , , and( The total number of ports can be as shown in Table 4. In some embodiments, subsets of the rows and / or columns in Table 4 may be applied.

[0142] Table 4

[0143] Figure 5AA Figure 5HG illustrates an example of a CSI-RS configuration mode. (Reference) Figure 5AA The embodiment is described in Figure 5HG.

[0144] In some embodiments, the first plurality of CSI-RS resources or port groups may include 2 CSI-RS resources or 2 port groups ( =2), each CSI-RS resource or each port group includes Ports. For example, such as Figure 5AA As shown, N 1,t =2*N1, N 2,t =N2. As another example, such as... Figure 5AB As shown, N 1,t =N1, N 2,t =2*N2.

[0145] In some embodiments, the first plurality of CSI-RS resources or port groups include 3 CSI-RS resources or 3 port groups ( =3), each CSI-RS resource or each port group includes Ports. For example, such as Figure 5BA As shown, N 1,t =3*N1、N 2,t =N2. As another example, such as... Figure 5BB As shown, N 1,t =N1, N 2,t =3*N2.

[0146] In some embodiments, the first plurality of CSI-RS resources or port groups include 4 CSI-RS resources or 4 port groups ( =4), each CSI-RS resource or each port group includes Ports. For example, such as Figure 5CA As shown, N 1,t =4*N1, N 2,t =N2. As another example, such as... Figure 5CB As shown, N 1,t =2*N1, N 2,t =2*N². For example, such as Figure 5CC As shown, pattern, N 1,t =N1, N 2,t =4*N2.

[0147] In some embodiments, the first plurality of CSI-RS resources or port groups include 8 CSI-RS resources or 8 port groups ( =8), each CSI-RS resource or each port group includes Each port. In an example embodiment, such as Figure 5DA As shown, N 1,t =4*N1, N 2,t =2*N². In another example embodiment, such as Figure 5DB As shown, N 1,t =2*N1, N 2,t =4*N². In another example embodiment, such as Figure 5DC As shown, N 1,t =8*N1, N 2,t =N2. In yet another example embodiment, such as Figure 5DD As shown, N 1,t =N1, N 2,t =8*N2.

[0148] In some embodiments, if the number of ports is 48, the first plurality of CSI-RS resources or port groups comprise 3 CSI-RS resources or 3 port groups, each CSI-RS resource or port group comprising 16 ports. In some embodiments, , , =3. In this case, for example, as Figure 5EA As shown, N 1,t =12, N 2,t =2, N1=4, N2=2. As another example, such as... Figure 5EB As shown, N 1,t =8, N 2,t =3, N1=8, N2=1.

[0149] In some embodiments, if the number of ports is 64, the first plurality of CSI-RS resources or port groups comprise two CSI-RS resources or two port groups, each CSI-RS resource or port group comprising 16 ports. In some embodiments, , , =2. For example, such as Figure 5FA As shown, N 1,t =8, N 2,t =3, N1=4, N2=3. As another example, such as... Figure 5FB As shown, N 1,t =12, N 2,t =2, N1=6, N2=2. In the example, as... Figure 5FC As shown, N 1,t =12, N 2,t =2, N1=12, N2=1.

[0150] In some embodiments, subsets of the rows and / or columns in Table 5 may be applied to at least one configuration of 48 ports. Note that Table 5 is merely an example.

[0151] Table 5

[0152] In some embodiments, subsets of the rows and / or columns in Table 6 may be applied to at least one configuration for 48 ports. Note that Table 6 is merely an example.

[0153] Table 6

[0154] In some embodiments, if the number of ports is 64, the first plurality of CSI-RS resources or port groups comprise two CSI-RS resources or two port groups, each CSI-RS resource or port group comprising 32 ports. For example, , , =2. In the example, such as Figure 5GA As shown, N 1,t =8, N 2,t =4, N1=4, N2=4. In another example, such as Figure 5GB As shown, N 1,t =16, N 2,t =2, N1=8, N2=2. In another example, such as Figure 5GC As shown, N 1,t =8, N 2,t =4, N1=8, N2=2. In another example, such as Figure 5GD As shown, N 1,t =16, N 2,t =2, N1=16, N2=1.

[0155] In some embodiments, if the number of ports is 64, the first plurality of CSI-RS resources or port groups comprise 4 CSI-RS resources or 4 port groups, each CSI-RS resource or port group comprising 16 ports. For example, , , =4. In one example, such as Figure 5HA As shown, N 1,t =8, N 2,t =4, N1=4, N2=2. In another example, such as Figure 5HB As shown, N 1,t =16, N 2,t =2, N1=4, N2=2. In another example, such as Figure 5HC As shown, N 1,t =8, N 2,t =4, N1=8, N2=1. In another example, such as Figure 5HD As shown, N 1,t =16, N 2,t =2, N1=8, N2=1.

[0156] In some embodiments, subsets of the rows and / or columns in Table 7 may be applied to at least one configuration with 64 ports. Note that Table 7 is merely an example.

[0157] Table 7

[0158] In some embodiments, subsets of the rows and / or columns in Table 8 may be applied to at least one configuration with 64 ports. Note that Table 8 is merely an example.

[0159] Table 8

[0160] refer to Figure 6 This illustrates a signaling stream 600 for transmitting measurement reports according to some embodiments of the present disclosure. For discussion purposes, reference will be made to... Figure 1 For example, signaling flow 600 can be discussed using terminal device 110 and network device 120.

[0161] In some embodiments, terminal device 110 may transmit (2030) a measurement report to network device 120 based on at least one configuration, a second value in a first dimension, and a second value in a second dimension. In some embodiments, network device 120 may receive the measurement report from terminal device 110. In some embodiments, the measurement report may include at least one of the following: a first plurality of first vectors and a second plurality of second vectors and / or a third plurality of third vectors. In some embodiments, the number of first vectors in the first plurality of first vectors may be represented as... , It can be a positive integer. In some embodiments, or or In some embodiments, the number of second vectors in the second plurality of second vectors can be expressed as: , It can be a positive integer. In some embodiments, or or In some embodiments, the number of third vectors in the plurality of third vectors can be expressed as: , It can be a positive integer. In some embodiments, or or In some embodiments, Can be with Same or different. In some embodiments, Can be with Same or different. In some embodiments, each first vector or a first vector may be based on a first value in a first dimension and a first value in a second dimension. In some embodiments, each second vector or a second vector may be based on a second value in a first dimension and a second value in a second dimension. In some embodiments, a second plurality of second vectors may be based on a first plurality of first vectors. In some embodiments, a measurement report may include a first indication based on a first value in a first dimension and a second indication based on a first value in a second dimension. In some embodiments, a measurement report may also include a third indication based on a second value in a first dimension and a fourth indication based on a second value in a second dimension. In some embodiments, a measurement report may also include an eleventh indication based on a third value in a first dimension and a twelfth indication based on a third value in a second dimension. In some embodiments, the third and fourth indications may be based on the first and second indications. In some embodiments, at least one configuration may include at least one of the following: value, The value and The value of .

[0162] In some embodiments, such as Figure 7A As shown, a second vector can be selected or determined from a set of second vectors corresponding to the first vector. For example, the first vector can be based on a first value in the first dimension and a first value in the second dimension (e.g., N1=4, N2=4), and the second vector can be based on a second value in the first dimension and a second value in the second dimension (e.g., N1,t=16, N2,t=4).

[0163] In some embodiments, there may be a basis , , and The first vector set. In some embodiments, the number of first vectors in the first vector set can be... In some embodiments, a first vector may be a vector having a length or has a value The vector. In some embodiments, the first vector may be represented as : ,in , in , .

[0164] In some embodiments, value-based... , and The third vector set. In some embodiments, the number of third vector sets can be... In some embodiments, a third vector may be a vector having a length or has a value A vector. In some embodiments, a third vector can be represented as : ,in , in , .

[0165] In some embodiments, and The value can be associated with or based on at least one of the following: and The value, or and The value. For example, and The values ​​can be based on / associated with and The value and / or and The value of . In some embodiments, if or ,but In some embodiments, if or ,but In some embodiments, if or ,but In some embodiments, if or ,but In the above embodiments, It can represent the first value in the first dimension. This can represent the first value in the second dimension. In some embodiments, These can represent parameters corresponding to a second value in the first dimension and a second value in the second dimension, or a first value in the first dimension and a first value in the second dimension, or a third value in the first dimension and a third value in the second dimension, respectively. In some embodiments, It can represent the second value in the first dimension. This can represent the second value in the second dimension. In some embodiments, It can represent the third value in the first dimension, and It can represent the third value in the second dimension.

[0166] In some embodiments, the measurement report may include at least one indication (or a first indication and a second indication) of the first vector, and at least one indication of a second vector (or a third indication of the second vector and a fourth indication of the second vector). For example, the second vector may come from the second vectors of a first group. In some embodiments, the second vectors of the first group may be associated with (or based on) the first vector, or associated with (or based on) the second vector, or may be based on the first and second indications, or may be based on at least one indication of the first vector. In some embodiments, the measurement report may include the first and second indications, and an indication of a second vector from the second vectors of the first group. In some embodiments, the second vectors of the first group may be associated with, based on, or correspond to the first and second indications. In some embodiments, the measurement report may include at least one indication of the second vector (or a fifth indication and a sixth indication for the second vector). In some embodiments, the fifth indication may be associated with or correspond to information about the second vector in the first vector corresponding to the first dimension. In some embodiments, the sixth indication may be associated with or correspond to information about the second vector in the first vector corresponding to the second dimension.

[0167] In some embodiments, the second of the first vectors may come from a set of first vectors. In some embodiments, the set of first vectors (or the fifth and sixth indications) may be based on the first of the first vectors or may be based on the first and second indications. For example, the fifth and sixth indications may be based on the first and second indications. For example, at least for a 1 or 2-level codebook. In some embodiments, the number of first vectors in the set of first vectors may be 4. In some embodiments, the second of the first vectors may be based on the first, second, fifth, and sixth indications.

[0168] In some embodiments, the number of second vectors in the second vector of the first group can be based on the second value in the first dimension and the second value in the second dimension, or based on... The value and / or The value of . In some embodiments, the number of F-vectors in the second vectors of the first group can be based on the first number of reference signal resources corresponding to the first dimension (e.g., ) and the first number of reference signal resources corresponding to the second dimension (e.g., For example, the number of second vectors in the second vector of the first group can be based on the second value in the first dimension and the second value in the second dimension (or based on...). In an example embodiment, the indication of the first in the first vector (or the first and second indications) may be a broadband report. In another example embodiment, the indication of the second vector (or the third and fourth indications) may be a subband report. In yet another example, the indication of the second in the first vector (or the fifth and fifth indications) may be a subband report.

[0169] In an example embodiment, the measurement report includes at least one indication of the first in the second vector (or a seventh indication and an eighth indication based on the second value in the first dimension for the first in the second vector), and at least one indication of the second in the second vector from the second group of second vectors (or a ninth indication and a tenth indication based on the second value in the first dimension for the second in the second vector). In some embodiments, the second vectors of the second group may be based on or associated with the first in the second vector. For example, the measurement report may include a seventh indication and an eighth indication based on the second value in the first dimension, and a ninth indication and a tenth indication based on the second value in the first dimension. In some embodiments, the ninth and tenth indications may be based on the seventh and eighth indications. In some embodiments, the second in the second vector may be based on the seventh, eighth, ninth, and tenth indications.

[0170] In some embodiments, the number of second vectors in the second group of second vectors can be at least one of the following: 16 or 8 or... or or In some embodiments, This indicates the number of reference signal resources in the first plurality of reference signal resources. For example, for layer 1 and layer 2 codebooks, the number of second vectors in the second group of second vectors can be 16 or 8 or... or For another example, with 3, 4, 5, 6, 7, or 8 layers (or for any number of layers other than 1 and 2), the number of second vectors in the second group of the second vector can be 1 or... In one example embodiment, the indication of the first in the second vector could be a broadband report. In another example embodiment, the indication of the second in the second vector could be a subband report. In this way, the beam can be narrower through a greater number of ports, and performance can be improved by selecting a greater number of candidate beams in the subbands.

[0171] In some embodiments, a measurement report may include at least one indication of a first vector, at least one indication of a third vector in a second vector from a first group of second vectors corresponding to a first subset of ports (e.g., corresponding to a first polarization), and at least one indication of a fourth vector in a second vector from a first group of second vectors corresponding to a second subset of ports (e.g., corresponding to a second polarization). In some embodiments, the second vectors of the first group may be associated with or based on the first vector, or associated with or based on the second vector. For example, a measurement report may include a first indication and a second indication, and at least one indication of a third vector in a second vector from a first group of second vectors corresponding to a first subset of ports (e.g., a first polarization), and at least one indication of a fourth vector in a second vector from a first group of second vectors corresponding to a second subset of ports (e.g., a second polarization). In some embodiments, the second vectors of the first group may be associated with or based on the first and second indications, or associated with or based on a fifth and a sixth indication.

[0172] In some embodiments, the second of the first vectors may come from a set of first vectors, and this set of first vectors (or the fifth and sixth indicators) may be based on the first of the first vectors. For example, the set of first vectors (or the fifth and sixth indicators) may be based on the first of the first vectors (or based on the first and second indicators) (e.g., for at least a 1-level or 2-level codebook). As an example, the number of first vectors in this set of first vectors may be 4.

[0173] In some embodiments, the number of second vectors in the second vectors of the first group can be based on a second value in the first dimension and a second value in the second dimension, or based on a first number of reference signal resources corresponding to the first dimension and a first number of reference signal resources corresponding to the second dimension. For example, the number of second vectors in the second vectors of the first group can be based on a second value in the first dimension and a second value in the second dimension (or based on...) In an example embodiment, the indication of the first party in the first vector (or the first and second indications) may be a broadband report. In another example embodiment, the indication of the second party in the second vector and / or the indication of the third party in the second vector may be a subband report. In yet another example embodiment, the indication of the second party in the first vector may be a subband report.

[0174] In some embodiments, the measurement report may include at least one indication of the first of the second vectors (or a seventh indication based on a second value in a first dimension and an eighth indication based on a second value in a second dimension for the first of the second vectors), and at least one indication of the second of the second vectors of the second group of second vectors from a first subset (e.g., a first polarization) corresponding to a port, and at least one indication of the third of the second vectors of the second group of second vectors from a second subset (e.g., a second polarization) corresponding to a port. In some embodiments, the second vectors of the second group (or the ninth and tenth indications) may be based on the first of the second vectors (or based on the seventh and eighth indications). In some embodiments, the number of second vectors in the second group of second vectors may be at least one of the following: 16 or 8 or or or For example, for level 1 and level 2 codebooks, the number of second vectors in the second vector of the second group can be 16 or 8 or... or And for layers of 3, 4, 5, 6, 7, or 8 (or for layers with values ​​other than 1 and 2), the number of second vectors in the second group of the second vector can be 1 or In an example embodiment, the indication of the first in the second vector may be a broadband report. In another example embodiment, the indication of the second in the second vector and / or the indication of the third in the second vector may be a sub-band report. In this way, performance can be improved by utilizing a narrower beam and different beams selected for different polarizations.

[0175] In some embodiments, for a 1-layer type I codebook, or For codebookMode=1, , , , In some embodiments, , Can indicate and The value, , ,and The number of digits can be In some other embodiments, , , Can indicate , and The value, , , , , ,and The number of digits can be .

[0176] In some embodiments, for a 1-layer type I codebook, codebookMode=2, or , , , , .For example, , , Can indicate and The value, , , , , ,and The number of bits can be As another example, , Can indicate , and The value, , , , , , , . The number of digits can be .

[0177] In some embodiments, if codebookMode=2, or , , , , .For example, , Can indicate and The value, , , or . The number of digits can be or As another example, , , Can indicate , and The value, , , , or . The number of digits can be or .

[0178] In some embodiments, for a two-layer type I codebook, For codebookMode=1, , , , , , Can indicate and The value. For example, , , , , Can indicate , and The value, , . The number of digits can be As another example, , , , , Can indicate , and The value, , , , , . The number of digits can be .

[0179] In some embodiments, for a 2-layer type I codebook, codebookMode=2, or , , , , , , , Can indicate and The value. For example, , , , , Can indicate and The value, , , , , . The number of digits can be As another example, , , , , Can indicate and The value, , , , , , , . The number of digits can be .

[0180] In some embodiments, for a 2-layer type I codebook, codebookMode=2, or , , , , , , , Can indicate and The value. For example, , , Can indicate and The value, , , or . The number of digits can be or As another example, , , , , Can indicate and The value, , , , or . The number of digits can be or .

[0181] In some embodiments, for a 3-layer Type I codebook, .For example, , , , , , , Can indicate and The value of . In the example embodiment. , , , , Can indicate , and The value, , , The number of digits can be As another example, , , , , Can indicate and The value, , , , , . The number of digits can be .

[0182] In some embodiments, for a 4-layer Type I codebook, .For example, , , , , , Can indicate and The value. For example, , , , , Can indicate , and The value, , . The number of digits can be As another example, , , , , Can indicate , and The value, , , , , . The number of digits can be .

[0183] In some embodiments, for a 5-layer Type I codebook, .For example, , , , , , , , , Can indicate , , and The value. For example, , , , , , , Can indicate and The value, , . The number of digits can be As another example, , , , s , , Can indicate , , , and The value, , , , , . The number of digits can be .exist or In this case, , , and The value can be { , ,0, }or{ , , , }or{ , , , }or{ , , , }or{ , , , }.exist or , , In this case, and The value can be { , ,0, }or{ , , , }or{ , , , }

[0184] In some embodiments, for a 6-layer Type I codebook, .For example, , , , , , , , , Can indicate and The value. For example, , , , , , , Can indicate and The value, , . The number of digits can be As another example, , , , , , , Can indicate , and The value, , , , , . The number of digits can be .exist or In this case, , , and The value can be { , ,0, }or{ , , , }or{ , , , }or{ , , , }or{ , , , }.exist or , , In this case, , , and The value can be { , ,0, }or{ , , , }or{ , , , }

[0185] In some embodiments, for a 7-layer Type I codebook, .For example, , , , , , , , , , , Can indicate , , and and The value. For example, , , , , , , , , Can indicate , and The value, , . The number of digits can be As another example, , , , , , , , , Can indicate , and The value, , , , , . The number of digits can be .exist or In this case, , , , and and The value can be { ,0, ,0, , }or{ ,0, ,0, , }or{ ,0, , , , }.exist or , , In this case, , , and and The value can be { , , ,0, ,0} or { , ,2* , , ,0} or { , , ,0, , }

[0186] In some embodiments, for an 8-layer Type I codebook, .For example, , , , , , , , , , , Can indicate , , , and and The value. For example, , , , , , , , , Can indicate , and The value, , . The number of digits can be As another example, , , , , , , , , Can indicate , , , and The value, , , , , . The number of digits can be .exist or In this case, , and and The value can be { ,0, ,0, , }or{ ,0, ,0, , }or{ ,0, , , , }.exist or , , In this case, , , , and and The value can be { , , ,0, ,0} or { , ,2* , , ,0} or { , , ,0, , }

[0187] In some embodiments, a measurement report may include at least one indication of a first plurality of first vectors or at least one indication of a plurality of sets of second vectors, and at least one indication of a second plurality of second vectors corresponding to the first plurality of first vectors or the plurality of sets of second vectors. For example, for an enhanced type II codebook, a measurement report may include indications of a first plurality of first vectors (or indications of a plurality of sets of second vectors), and at least one indication of a second plurality of second vectors corresponding to the first plurality of first vectors (or the plurality of sets of second vectors).

[0188] In some embodiments, the number of first vectors in a first plurality of first vectors or the number of groups of second vectors in a plurality of groups of second vectors is ,in It is a positive integer. For example, In some embodiments, the number of second vectors in the second plurality of second vectors is ,in is a positive integer. In the example embodiment, the number of second vectors in a set of second vectors is ,in This can represent the number of reference signal resources in the first plurality of reference signal resources, for example, .

[0189] In some embodiments, only one second vector corresponds to one first vector or is selected from a set of second vectors, for example... In some other embodiments, more than one second vector corresponds to one first vector or is selected from a set of second vectors, for example, .

[0190] In some embodiments, for each of the first plurality of first vectors or each group of second vectors, there may be at least one indication to indicate a second vector corresponding to one of the first plurality of first vectors or the group of second vectors (e.g., For example, the number of indications of at least one of the second plurality of second vectors can be Each instruction may include One candidate value or A number of bits, or a field used for at least one indication, may include... Each bit. For example, such as Figure 7B As shown, a second vector is independently selected corresponding to each of the first vectors.

[0191] In some other embodiments, for a first plurality of first vectors or a plurality of groups of second vectors, there may be at least one indication to indicate a second vector corresponding to each or all of the first plurality of first vectors or each or all of the groups of second vectors (e.g., For example, the number of indications of at least one of the second plurality of second vectors can be The indication may include One candidate value or A number of bits, or a field used for at least one indication, may include... Each bit. For example, such as Figure 7C As shown, a second vector is jointly selected corresponding to each of the first vectors.

[0192] In some embodiments, for each of the first plurality of first vectors or each group of second vectors, there may exist at least one second vector corresponding to each of the first plurality of first vectors or the group of second vectors. For example, for each of the first plurality of first vectors or each group of second vectors, there may exist one corresponding to one of the first plurality of first vectors or the group of second vectors (e.g., At least one second vector of ) (for example, the number of at least one second vector can be expressed as , It can be a positive integer, for example, ).

[0193] In some embodiments, the first amplitude coefficient and / or the first phase coefficient corresponds to one of at least one second vector associated with one of a first plurality of first vectors or a set of second vectors. In an example embodiment, the second amplitude coefficient and / or the second phase coefficient corresponds to the remaining of the at least one second vector associated with one of the first plurality of first vectors or the set of second vectors. There are two second vectors, where This represents the number of second vectors in at least one second vector. For example, with... The magnitude corresponding to the second vector can be a difference value related to the first magnitude coefficient corresponding to a second vector.

[0194] In some embodiments, the number or bit size of candidate values ​​used to indicate the first amplitude coefficient is greater than the number or bit size of candidate values ​​used to indicate the second amplitude coefficient; for example, the first amplitude coefficient is 4 bits, and the second amplitude coefficient is 2 or 3 bits. In some embodiments, the number or bit size of candidate values ​​used to indicate the first phase coefficient is greater than the number or bit size of candidate values ​​used to indicate the second phase coefficient.

[0195] In some embodiments, the measurement report includes at least one indication of a first vector from a first plurality of groups. Each group of first vectors may correspond to one of a first or second plurality of reference signal resources, and a first plurality of phase coefficients across the reference signal resources in the first or second plurality of reference signal resources. For example, for an enhancement type II codebook, based on a CJT structure. In some embodiments, the measurement report may include at least one indication of a group of first vectors from a first plurality of groups (the number of first vectors in the group may be 1 or...). or Each set of first vectors may correspond to one of the first or second plurality of CSI-RS resources, and a first plurality of phase coefficients across the CSI-RS resources in the first or second plurality of CSI-RS resources. For example, the plurality of sets of first vectors corresponding to each of the first or second plurality of reference signal resources may be the same or different.

[0196] In some embodiments, a set of first vectors may exist within the first plurality of groups of first vectors, and the measurement report may further include at least one offset, wherein each offset corresponds to one or all of the first vectors in that set of first vectors. For example, a set of first vectors may exist within the first plurality of groups of first vectors, and the measurement report may further include at least one offset (the number of at least one offset may be...). or or or ), where each offset can correspond to one or all of the first vectors in the set.

[0197] In some embodiments, the measurement report includes at least: a third plurality of third vectors (e.g., denoted as) based on information from a second plurality of reference signal resources (or a second plurality of port groups). , This includes, and / or, first and / or first phase coefficients based on information from a second plurality of reference signal resources (or a second plurality of port groups). In some embodiments, the second plurality of reference signal resources may be the same as or a subset of the first plurality of reference signal resources. In some embodiments, a third vector may be based on a third value in a first dimension and a third value in a second dimension. For example, Figure 8 An example of a CSI-RS pattern is shown, in which two CSI-RS resources are in a first plurality of CSI-RS resources.

[0198] In some embodiments, the information of the second plurality of reference signal resources may include at least one of the following: the number of reference signal resources in the second plurality of reference signal resources, and the index or order of the reference signal resources selected in the first plurality of reference signal resources. In an example, the third plurality of third vectors based on the second plurality of reference signal resources further includes: the first length of each of the third plurality of third vectors may be based on the information of the second plurality of reference signal resources. For example, the third plurality of third vectors based on the first plurality of CSI-RS resources may further include: the first length of each of the third plurality of third vectors (or the third value in the first dimension and the third value in the second dimension) may be based on the information of the first plurality of CSI-RS resources.

[0199] In some embodiments, the first plurality of phase coefficients based on the second plurality of reference signal resources further include: the candidate value and / or range or bit size indicated by one of the first plurality of phase coefficients may be based on information from the second plurality of reference signal resources. For example, the first plurality of phase coefficients based on the second plurality of CSI-RS resources may further include: the candidate value and / or range or bit size indicated by one of the first plurality of phase coefficients may be based on information from the second plurality of CSI-RS resources.

[0200] In some embodiments, the measurement report further includes: an indication of a second plurality of reference signal resources, and candidate values ​​for this indication may be based on at least one configuration. For example, the indication of the second plurality of CSI-RS resources may simply indicate the number of CSI-RS resources (or... (values). For example, {1, 2, ... } or {1,2,… The indication of}. For example, there may only be one value to indicate one of the CSI-RS resources included in the second or more CSI-RS resources. In addition, it can be assumed that the one CSI-RS resource is the first CSI-RS resource or a CSI-RS resource with the lowest / highest ID.

[0201] In some embodiments, there may be only one value to indicate two CSI-RS resources included in a second plurality of CSI-RS resources. Furthermore, it may be assumed that the two CSI-RS resources are the first two CSI-RS resources (i.e., the first and second) or the two CSI-RS resources with the lowest / highest ID.

[0202] In some embodiments, two or three values ​​may exist to indicate two CSI-RS resources included in a second plurality of CSI-RS resources. For example, a first value may indicate a first CSI-RS resource and a second CSI-RS resource. As another example, a second value may indicate a first CSI-RS resource and a third CSI-RS resource. Yet another example, a third value may indicate a first CSI-RS resource and a fourth CSI-RS resource.

[0203] In some embodiments, only one value may exist to indicate three CSI-RS resources included in a second plurality of CSI-RS resources. Furthermore, it may be assumed that the three CSI-RS resources are the first three CSI-RS resources (i.e., the first, second, and third) or the three CSI-RS resources with the lowest / highest ID. In some embodiments, only one value may exist to indicate four CSI-RS resources included in a second plurality of CSI-RS resources.

[0204] In some embodiments, >32 or In this case, terminal device 110 may be configured with a first value for subband size and / or a first value for R (e.g., numberofPMIperSubband), and =1 or When the value is less than or equal to 32, the terminal device 110 may be configured with a second value for the subband size and / or a second value for R. In some embodiments, the first value for the subband size may be less than or not greater than the second value for the subband size. For example, the first value for the subband size may be at least one of {1, 2, 4, 8, 16, 32}. For example, the second value for the subband size may be at least one of {4, 8, 16, 32}. In some other embodiments, the first value for R may be greater than or not less than the second value for R. For example, the first value for R may be 2 or 4. For example, the second value for R may be 1 or 2.

[0205] In some embodiments, subsets of the rows and / or columns in Table 9 may be applied to at least one configuration with 64 ports. Note that Table 9 is merely an example.

[0206] Table 9

[0207] Figure 9 A flowchart of a communication method 900 implemented at a terminal device according to some embodiments of the present disclosure is shown. For discussion purposes, [the following will be discussed]. Figure 1 The angle description method of terminal device 110 in 900.

[0208] At box 910, terminal device 110 receives at least one configuration for measurement reporting from network device 120. The at least one configuration includes a first plurality of reference signal resources, a pattern indication, and at least one codebook subset restriction. Each of the at least one codebook subset restriction is associated with a reference signal resource. The at least one configuration for measurement reporting includes a first value in a first dimension and a first value in a second dimension.

[0209] At box 920, terminal device 110 determines the second value in the first dimension and the second value in the second dimension based on the indication of the pattern.

[0210] At box 930, terminal device 110 transmits a measurement report to network device 120 based on at least one configuration, a second value in the first dimension, and a second value in the second dimension.

[0211] Figure 10 A flowchart of a communication method 1000 implemented at a network device according to some embodiments of the present disclosure is shown. For discussion purposes, [the following will be discussed]. Figure 1 Method 1000 is described from the perspective of network device 120.

[0212] At box 1010, network device 120 transmits at least one configuration for measurement reporting to terminal device 110. The at least one configuration includes a first plurality of reference signal resources, a pattern indication, and at least one codebook subset restriction. Each of the at least one codebook subset restriction is associated with a reference signal resource. The at least one configuration for measurement reporting includes a first value in a first dimension and a first value in a second dimension, wherein the second value in the first dimension and the second value in the second dimension are based on the pattern indication.

[0213] At box 1020, network device 120 receives a measurement report based on at least one configuration from terminal device 110.

[0214] Figure 11 A flowchart of a communication method 1100 implemented at a terminal device according to some embodiments of the present disclosure is shown. For discussion purposes, [the following will be discussed]. Figure 1 Angle description method 1100 for terminal device 110 in the middle.

[0215] At box 1110, terminal device 110 receives at least one configuration for measurement reporting from network device 120. This at least one configuration includes a first plurality of reference signal resources, a first value in a first dimension, and a first value in a second dimension.

[0216] At box 1120, terminal device 110 transmits a measurement report to network device 120 based on at least one configuration. The measurement report includes a first plurality of first vectors and a second plurality of second vectors. Each first vector is based on a first value in a first dimension and a first value in a second dimension, each second vector is based on a second value in a first dimension and a second value in a second dimension, and the second plurality of second vectors are based on the first plurality of first vectors.

[0217] Figure 12 A flowchart of a communication method 1200 implemented at a network device according to some embodiments of the present disclosure is shown. For discussion purposes, [the following will be discussed]. Figure 1 Method 1200 is described from the perspective of network device 120.

[0218] At box 1210, network device 120 transmits at least one configuration for measurement reporting to terminal device 110. This at least one configuration includes a first plurality of reference signal resources, a first value in a first dimension, and a first value in a second dimension.

[0219] At box 1220, network device 120 receives a measurement report from terminal device 110 based on at least one configuration. The measurement report includes a first plurality of first vectors and a second plurality of second vectors. Each first vector is based on a first value in a first dimension and a first value in a second dimension, each second vector is based on a second value in a first dimension and a second value in a second dimension, and the second plurality of second vectors are based on the first plurality of first vectors.

[0220] Figure 13 This is a simplified block diagram of a device 1300 suitable for implementing embodiments of the present disclosure. Device 1300 can be considered as follows: Figure 1 Another example implementation of any of the devices shown. Thus, device 1300 may be implemented at or as a part of terminal device 110 or network device 120.

[0221] As shown in the figure, device 1300 includes a processor 1310, a memory 1320 coupled to the processor 1310, a suitable transceiver 1340 coupled to the processor 1310, and a communication interface coupled to the transceiver 1340. The memory 1320 stores at least a portion of a program 1330. The transceiver 1340 can be used for bidirectional or unidirectional communication based on requirements. The transceiver 1340 may include at least one of a transmitter 1342 and a receiver 1344. The transmitter 1342 and receiver 1344 may be functional modules or physical entities. The transceiver 1340 has at least one antenna to facilitate communication; however, in practice, the access node mentioned in this application may have several antennas. The communication interface can represent any interface required for communication with other network elements, such as the X2 / Xn interface for bidirectional communication between eNBs / gNBs, the S1 / NG interface for communication between the Mobility Management Entity (MME) / Access and Mobility Management Function (AMF) / SGW / UPF and the eNB / gNB, the Un interface for communication between the eNB / gNB and the Relay Node (RN), or the Uu interface for communication between the eNB / gNB and the terminal equipment.

[0222] Assume that program 1330 includes program instructions that, when executed by the associated processor 1310, enable device 1300 to operate according to embodiments of this disclosure, as referenced herein. Figures 1 to 12The embodiments discussed herein may be implemented by computer software executable by the processor 1310 of device 1300, or by hardware, or by a combination of software and hardware. The processor 1310 may be configured to implement various embodiments of this disclosure. Furthermore, a combination of the processor 1310 and the memory 1320 may form a processing unit 1350 suitable for implementing various embodiments of this disclosure.

[0223] Memory 1320 can be of any type suitable for a local technology network and can be implemented using any suitable data storage technology, such as, as non-limiting examples, non-transitory computer-readable storage media, semiconductor-based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory, and removable memory. Although only one memory 1320 is shown in device 1300, several physically different memory modules may exist in device 1300. As a non-limiting example, processor 1310 can be of any type suitable for a local technology network and can include one or more of a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), and a processor based on a multi-core processor architecture. Device 1300 can have multiple processors, such as application-specific integrated circuit chips that are time-dependent on a clock synchronized with a main processor.

[0224] According to embodiments of this disclosure, a terminal device including circuitry is provided. The circuitry is configured to: receive from a network device at least one configuration for a measurement report, wherein the at least one configuration includes a first plurality of reference signal resources, an indication of a pattern, and at least one codebook subset restriction, wherein each of the at least one codebook subset restriction is associated with a reference signal resource, wherein the at least one configuration for the measurement report includes a first value in a first dimension and a first value in a second dimension; determine a second value in the first dimension and a second value in the second dimension based on the indication of the pattern; and transmit a measurement report to the network device based on the at least one configuration, the second value in the first dimension, and the second value in the second dimension. According to embodiments of this disclosure, the circuitry can be configured to perform any method implemented by the terminal device, as described above.

[0225] According to embodiments of this disclosure, a network device including circuitry is provided. The circuitry is configured to: transmit to a terminal device at least one configuration for a measurement report, wherein the at least one configuration includes a first plurality of reference signal resources, an indication of a pattern, and at least one codebook subset restriction, wherein each of the at least one codebook subset restriction is associated with a reference signal resource, wherein the at least one configuration for the measurement report includes a first value in a first dimension and a first value in a second dimension, and wherein the second value in the first dimension and the second value in the second dimension are based on the indication of a pattern; and receive from the terminal device a measurement report based on the at least one configuration. According to embodiments of this disclosure, the circuitry can be configured to perform any method implemented by the network device, as described above.

[0226] As used herein, the term "circuit" can refer to hardware circuitry and / or a combination of hardware circuitry and software. For example, a circuit can be a combination of analog and / or digital hardware circuitry with software / firmware. As another example, a circuit can be any part of a hardware processor with software, including digital signal processors, software, and memory, which work together to enable a device, such as a terminal device or network device, to perform various functions. In yet another example, a circuit can be hardware circuitry and / or a processor that requires software / firmware to operate, such as a microprocessor or a portion thereof, but which may be absent when software is not required to operate. As used herein, the term "circuit" also encompasses the implementation of hardware circuitry or processor(s) alone, or a portion thereof, and its accompanying software and / or firmware.

[0227] According to embodiments of this disclosure, a terminal device is provided. The terminal device includes: components for receiving at least one configuration for a measurement report from a network device, wherein the at least one configuration includes a first plurality of reference signal resources, an indication of a pattern, and at least one codebook subset restriction, wherein each of the at least one codebook subset restriction is associated with a reference signal resource, and wherein the at least one configuration for the measurement report includes a first value in a first dimension and a first value in a second dimension; components for determining a second value in the first dimension and a second value in the second dimension based on the indication of the pattern; and components for transmitting a measurement report to the network device based on the at least one configuration, the second value in the first dimension, and the second value in the second dimension. In some embodiments, the first device may include components for performing corresponding operations of method 900. In some example embodiments, the first device may also include components for performing other operations in some example embodiments of method 900. The components may be implemented in any suitable form. For example, the components may be implemented in a circuit or software module.

[0228] According to embodiments of this disclosure, a network apparatus is provided. The network apparatus includes: components for transmitting at least one configuration for a measurement report to a terminal device, wherein the at least one configuration includes a first plurality of reference signal resources, an indication of a pattern, and at least one codebook subset restriction, wherein each of the at least one codebook subset restriction is associated with a reference signal resource, wherein the at least one configuration for the measurement report includes a first value in a first dimension and a first value in a second dimension, and wherein the second value in the first dimension and the second value in the second dimension are based on the indication of a pattern; and components for receiving a measurement report based on the at least one configuration from the terminal device. In some embodiments, a second component may include components for performing corresponding operations of method 1000. In some example embodiments, the second component may also include components for performing other operations in some example embodiments of method 1000. The components may be implemented in any suitable form. For example, the components may be implemented in a circuit or software module.

[0229] In one aspect, a terminal device includes: at least one processor; and at least one memory coupled to the at least one processor and storing instructions thereon, which, when executed by the at least one processor, cause the device to perform a method implemented by the terminal device, as described above.

[0230] In one aspect, a network device includes: at least one processor; and at least one memory coupled to the at least one processor and storing instructions thereon, which, when executed by the at least one processor, cause the device to perform a method implemented by the network device, as described above.

[0231] In one aspect, a computer-readable medium having instructions stored thereon, which, when executed on at least one processor, cause at least one processor to perform a method implemented by a terminal device, as described above.

[0232] In one aspect, a computer-readable medium storing instructions that, when executed on at least one processor, cause at least one processor to perform a method implemented by a network device, as described above.

[0233] In one aspect, a computer program includes instructions that, when executed on at least one processor, cause at least one processor to perform a method implemented by a terminal device, as described above.

[0234] In one aspect, a computer program includes instructions that, when executed on at least one processor, cause the at least one processor to perform a method implemented by a network device, as described above.

[0235] According to embodiments of this disclosure, a terminal device including circuitry is provided. The circuitry is configured to: receive from a network device at least one configuration for a measurement report, wherein the at least one configuration includes a first plurality of reference signal resources, a first value in a first dimension, and a first value in a second dimension; and transmit to the network device a measurement report based on the at least one configuration, wherein the measurement report includes a first plurality of first vectors and a second plurality of second vectors, wherein each first vector is based on a first value in a first dimension and a first value in a second dimension, each second vector is based on a second value in a first dimension and a second value in a second dimension, and the second plurality of second vectors are based on the first plurality of first vectors. According to embodiments of this disclosure, the circuitry can be configured to perform any method implemented by the terminal device, as described above.

[0236] According to embodiments of this disclosure, a network device including circuitry is provided. The circuitry is configured to: transmit at least one configuration for a measurement report to a terminal device, wherein the at least one configuration includes a first plurality of reference signal resources, a first value in a first dimension, and a first value in a second dimension; and receive a measurement report based on the at least one configuration from the terminal device, wherein the measurement report includes a first plurality of first vectors and a second plurality of second vectors, wherein each first vector is based on a first value in a first dimension and a first value in a second dimension, each second vector is based on a second value in a first dimension and a second value in a second dimension, and the second plurality of second vectors are based on the first plurality of first vectors. According to embodiments of this disclosure, the circuitry can be configured to perform any method implemented by the network device, as described above.

[0237] According to embodiments of this disclosure, a terminal device is provided. The terminal device includes: components for receiving at least one configuration for a measurement report from a network device, wherein the at least one configuration includes a first plurality of reference signal resources, a first value in a first dimension, and a first value in a second dimension; and components for transmitting a measurement report based on the at least one configuration to the network device, wherein the measurement report includes a first plurality of first vectors and a second plurality of second vectors, wherein each first vector is based on a first value in a first dimension and a first value in a second dimension, each second vector is based on a second value in a first dimension and a second value in a second dimension, and the second plurality of second vectors are based on the first plurality of first vectors. In some embodiments, the first device may include components for performing corresponding operations of method 1100. In some example embodiments, the first device may also include components for performing other operations in some example embodiments of method 1100. The components may be implemented in any suitable form. For example, the components may be implemented in a circuit or software module.

[0238] According to embodiments of this disclosure, a network apparatus is provided. The network apparatus includes: components for transmitting at least one configuration for a measurement report to a terminal device, wherein the at least one configuration includes a first plurality of reference signal resources, a first value in a first dimension, and a first value in a second dimension; and components for receiving a measurement report based on the at least one configuration from the terminal device, wherein the measurement report includes a first plurality of first vectors and a second plurality of second vectors, wherein each first vector is based on a first value in a first dimension and a first value in a second dimension, each second vector is based on a second value in a first dimension and a second value in a second dimension, and the second plurality of second vectors are based on the first plurality of first vectors. In some embodiments, a second component may include components for performing corresponding operations of method 1200. In some example embodiments, the second component may also include components for performing other operations in some example embodiments of method 1200. The components may be implemented in any suitable form. For example, the components may be implemented in a circuit or software module.

[0239] In one aspect, a terminal device is proposed, comprising: a processor configured to cause the terminal device to: receive from a network device at least one configuration for a measurement report, wherein the at least one configuration includes a first plurality of reference signal resources, a first value in a first dimension, and a first value in a second dimension; and transmit to the network device a measurement report based on the at least one configuration, wherein the measurement report includes a first plurality of first vectors and a second plurality of second vectors, wherein each first vector is based on a first value in a first dimension and a first value in a second dimension, each second vector is based on a second value in a first dimension and a second value in a second dimension, and the second plurality of second vectors are based on the first plurality of first vectors.

[0240] In one aspect, a network device is proposed, comprising: a processor configured to cause the network device to: transmit at least one configuration for a measurement report to an end device, wherein the at least one configuration includes a first plurality of reference signal resources, a first value in a first dimension, and a first value in a second dimension; and receive a measurement report based on the at least one configuration from the end device, wherein the measurement report includes a first plurality of first vectors and a second plurality of second vectors, wherein each first vector is based on a first value in a first dimension and a first value in a second dimension, each second vector is based on a second value in a first dimension and a second value in a second dimension, and the second plurality of second vectors are based on the first plurality of first vectors.

[0241] In one aspect, a terminal device includes: at least one processor; and at least one memory coupled to the at least one processor and storing instructions thereon, which, when executed by the at least one processor, cause the device to perform a method implemented by the terminal device, as described above.

[0242] In one aspect, a network device includes: at least one processor; and at least one memory coupled to the at least one processor and storing instructions thereon, which, when executed by the at least one processor, cause the device to perform a method implemented by the network device, as described above.

[0243] In one aspect, a computer-readable medium storing instructions that, when executed on at least one processor, cause at least one processor to perform a method implemented by a terminal device, as described above.

[0244] In one aspect, a computer-readable medium storing instructions that, when executed on at least one processor, cause at least one processor to perform a method implemented by a network device, as described above.

[0245] In one aspect, a computer program includes instructions that, when executed on at least one processor, cause at least one processor to perform a method implemented by a terminal device, as described above.

[0246] In one aspect, a computer program includes instructions that, when executed on at least one processor, cause the at least one processor to perform a method implemented by a network device, as described above.

[0247] Generally, the various embodiments of this disclosure can be implemented in hardware or dedicated circuitry, software, logic, or any combination thereof. Some aspects can be implemented in hardware, while others can be implemented in firmware or software that can be executed by a controller, microprocessor, or other computing device. Although various aspects of the embodiments of this disclosure are illustrated and described as block diagrams, flowcharts, or using some other graphical representation, it should be understood that, as non-limiting examples, the blocks, apparatuses, systems, techniques, or methods described herein can be implemented in hardware, software, firmware, dedicated circuitry or logic, general-purpose hardware or controllers or other computing devices, or some combination thereof.

[0248] This disclosure also provides at least one computer program product tangibly stored on a non-transitory computer-readable storage medium. The computer program product includes computer-executable instructions that execute in a device on a target real or virtual processor, such as those included in a program module, to perform the above-referenced... Figures 1 to 8 A described process or method. Typically, a program module includes routines, programs, libraries, objects, classes, components, data structures, etc., that perform specific tasks or implement specific abstract data types. In various embodiments, the functionality of a program module can be combined or split among program modules as needed. The machine-executable instructions used in a program module can execute on a local or distributed device. In a distributed device, the program module can reside on both local and remote storage media.

[0249] Program code used to perform the methods of this disclosure may be written in any combination of one or more programming languages. This program code may be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing apparatus, such that when executed by the processor or controller, the program code enables the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may be executed entirely on a machine, partially on a machine, as a stand-alone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0250] The aforementioned program code may be embodied on a machine-readable medium, which may be any tangible medium containing or storing a program used by or in connection with an instruction execution system, apparatus, or device. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. More specific examples of machine-readable storage media will include 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), optical fibers, portable optical disc read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0251] Furthermore, although the operations are described in a specific order, this should not be construed as requiring that these operations be performed in the specific order shown or sequentially, or that all the operations shown be performed to achieve the desired result. In some cases, multitasking and parallel processing may be advantageous. Similarly, while several specific implementation details are contained in the foregoing discussion, these details should not be construed as limiting the scope of this disclosure, but rather as descriptions of features specific to particular embodiments. Certain features described in the context of a single embodiment may also be implemented in combination in a single embodiment. Conversely, the various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments.

[0252] Although this disclosure has been described in language specific to structural features and / or methodological actions, it should be understood that the disclosure as defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are disclosed as exemplary forms for implementing the claims.

Claims

1. A terminal device, comprising: The processor is configured to cause the terminal device to: Receive at least one configuration for a measurement report from a network device, wherein the at least one configuration includes a first plurality of reference signal resources, an indication of a pattern, and at least one codebook subset constraint, wherein each of the at least one codebook subset constraint is associated with a reference signal resource, wherein the at least one configuration for the measurement report includes a first value in a first dimension and a first value in a second dimension; Based on the indication of the pattern, a second value in the first dimension and a second value in the second dimension are determined; as well as The measurement report is transmitted to the network device based on the at least one configuration, the second value in the first dimension, and the second value in the second dimension.

2. The terminal device according to claim 1, wherein the mode indicates at least one of the following: A first number of reference signal resources corresponding to the first dimension and a second number of reference signal resources corresponding to the second dimension. The number of reference signal resources in the first plurality of reference signal resources, The second value in the first dimension and the second value in the second dimension, The structure of the reference signal resources in the first plurality of reference signal resources, The structure of the second multiple port group The reference signal port index mapped to the first plurality of reference signal resources, or The reference signal port index mapped to the second plurality of port groups.

3. The terminal device according to claim 1, wherein the terminal device is configured to: A second plurality of reference signal resources are determined, wherein the second plurality of reference signal resources are the same as the first plurality of reference signal resources or are a subset of the first plurality of reference signal resources.

4. The terminal device according to claim 1, wherein the first value in the first dimension and the first value in the second dimension correspond to one of the first plurality of reference signal resources, and Wherein the second value in the first dimension and the second value in the second dimension correspond to all the reference signal resources in the first plurality of reference signal resources, and The third value in the first dimension and the second value in the second dimension correspond to the reference signal resources in the second plurality of reference signal resources.

5. The terminal device of claim 1, wherein the measurement report includes a second plurality of second vectors, wherein each second vector is based on the second value in the first dimension and the second value in the second dimension, and The limitation on the reporting of the precoder based on the second vector is determined based on the at least one codebook subset limitation, and Each codebook subset is restricted to at least one first vector, and One of the first vectors is based on the first value in the first dimension and the first value in the second dimension.

6. The terminal device of claim 5, wherein the limitation on the precoder for the measurement report is based on the first value in the first dimension, the second value in the second dimension, the first number of reference signal resources corresponding to the first dimension, and the second number of reference signal resources corresponding to the second dimension.

7. The terminal device of claim 5, wherein one subset of the codebook is restricted to a bitmap, and the number of bits in the bitmap is ,in This represents the first value in the first dimension. This represents the first value in the second dimension. This represents the parameter corresponding to the first value in the first dimension and the parameter corresponding to the first value in the second dimension.

8. The terminal device according to claim 5, wherein there exists a second value based on the first dimension, the second value in the second dimension, and The second set of vectors.

9. The terminal device of claim 5, wherein a bitmap or a codebook subset constraint determined from the at least one codebook subset constraint is applied to the constraint of the pre-encoder for the measurement report, and The indication of whether a bit in the applied codebook subset or the applied bitmap is allowed or not corresponds to a set of second vectors.

10. The terminal device according to claim 9, wherein the bits in the bitmap Based on the set of second vectors All precoders of at least one second vector in the vector are associated, where , , , and , , This represents the first number of reference signal resources corresponding to the first dimension, and This represents the second number of reference signal resources corresponding to the second dimension.

11. The terminal device according to claim 10, wherein if the bit If the value is zero, then the precoder matrix index (PMI) report is not allowed to correspond to the set of second vectors associated with the bit. A precoder for at least one second vector in the vector.

12. The terminal device of claim 5, wherein a bit in one of the codebook subset restrictions indicates whether a report is allowed or not allowed corresponds to a second vector.

13. The terminal device according to claim 12, wherein the ( ) is used for the restriction of the at least one codebook subset. Bits in the bitmap restricted by a subset of the codebook Or used with the ( Bits in the bitmap restricted by the codebook subset corresponding to the ) reference signal resources With the second vector All precoders are associated, where , , or ,in This indicates the number of codebook subset constraints in the at least one codebook subset constraint. This indicates the number of reference signal resources among the first plurality of reference signal resources.

14. The terminal device according to claim 13, wherein if the ( ) Bits in a subset of the codebook The value or if used with the ( Bits in a bitmap constrained by a codebook subset corresponding to each reference signal resource. If the value is zero, then the PMI report is not allowed to correspond to a second vector associated with the bit. The precoder.

15. The terminal device of claim 1, wherein the first plurality of reference signal resources are included in a set of reference signal resources, and Wherein the first plurality of reference signal resources are in one time slot or multiple adjacent time slots, and For each of the first plurality of reference signal resources, there exists a set of ports.

16. The terminal device of claim 1, wherein the at least one configuration includes at least one reference signal resource, and each of the at least one reference signal resource includes a port set, and the port set includes a second plurality of port groups.

17. A network device, comprising: The processor is configured to cause the network device to: Transmit at least one configuration for a measurement report to a terminal device, wherein the at least one configuration includes a first plurality of reference signal resources, an indication of a mode, and at least one codebook subset restriction, wherein each of the at least one codebook subset restriction is associated with a reference signal resource, wherein the at least one configuration for the measurement report includes a first value in a first dimension and a first value in a second dimension, and wherein the second value in the first dimension and the second value in the second dimension are based on the indication of the mode; and Receive the measurement report based on the at least one configuration from the terminal device.

18. A communication method implemented at a terminal device, comprising: Receive at least one configuration for a measurement report from a network device, wherein the at least one configuration includes a first plurality of reference signal resources, an indication of a pattern, and at least one codebook subset constraint, wherein each of the at least one codebook subset constraint is associated with a reference signal resource, wherein the at least one configuration for the measurement report includes a first value in a first dimension and a first value in a second dimension; Based on the indication of the pattern, a second value in the first dimension and a second value in the second dimension are determined; as well as The measurement report is transmitted to the network device based on the at least one configuration, the second value in the first dimension, and the second value in the second dimension.

19. A communication method implemented at a network device, comprising: Transmit at least one configuration for a measurement report to a terminal device, wherein the at least one configuration includes a first plurality of reference signal resources, an indication of a mode, and at least one codebook subset restriction, wherein each of the at least one codebook subset restriction is associated with a reference signal resource, wherein the at least one configuration for the measurement report includes a first value in a first dimension and a first value in a second dimension, and wherein the second value in the first dimension and the second value in the second dimension are based on the indication of the mode; and Receive the measurement report based on the at least one configuration from the terminal device.

20. A computer-readable medium having instructions stored thereon, which, when executed on at least one processor, cause the at least one processor to perform the method according to any one of claims 18 or 19.

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