Information reporting method, terminal, and network device

Abstract

The present disclosure relates to an information reporting method, a terminal, and a network device. The information reporting method comprises: a terminal sends first information to a network device, the first information being used for indicating N regions of a first channel in a wavenumber domain, a wavenumber domain power distribution value corresponding to at least one coordinate in each of the regions being a peak value in a wavenumber domain power distribution of the first channel, the first channel being a channel from the network device to the terminal, and N being a positive integer. The embodiments of the present disclosure enable a network device to acquire accurate channel state information, thereby increasing link capacity.

Description

Information reporting methods, terminals and network equipment Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to information reporting methods, terminals, and network devices. Background Technology

[0002] Multiple-input multiple-output (MIMO) technology can significantly increase data transmission rates without increasing bandwidth, and beamforming gain is proportional to the number of antennas. Therefore, it has always attracted much attention from academia and industry and is one of the core technologies of the physical layer of wireless communication.

[0003] Summary of the Invention

[0004] This disclosure presents an information reporting method, a terminal, and a network device.

[0005] According to a first aspect of the embodiments of this disclosure, an information reporting method is proposed, executed by a terminal, the method comprising:

[0006] Send first information to the network device, wherein the first information is used to indicate N regions of the first channel in the wavenumber domain, the wavenumber domain power distribution value corresponding to at least one coordinate in each region is the peak value in the wavenumber domain power distribution of the first channel, the first channel is the channel from the network device to the terminal, and N is a positive integer.

[0007] According to a second aspect of the embodiments of this disclosure, an information reporting method is provided, executed by a network device, the method comprising:

[0008] The receiving terminal sends first information, wherein the first information is used to indicate N regions of the first channel in the wavenumber domain, and the wavenumber domain power distribution value corresponding to at least one coordinate in each region is the peak value in the wavenumber domain power distribution of the first channel, the first channel is the channel from the network device to the terminal, and N is a positive integer.

[0009] According to a third aspect of the embodiments of this disclosure, a terminal is provided, comprising:

[0010] The transceiver module is configured to send first information to a network device, wherein the first information is used to indicate N regions of a first channel in the wavenumber domain, the wavenumber domain power distribution value corresponding to at least one coordinate in each region is the peak value in the wavenumber domain power distribution of the first channel, the first channel is the channel from the network device to the terminal, and N is a positive integer.

[0011] According to a fourth aspect of the embodiments of this disclosure, a network device is provided, comprising:

[0012] The transceiver module is configured to receive first information sent by the terminal, wherein the first information is used to indicate N regions of the first channel in the wavenumber domain, and the wavenumber domain power distribution value corresponding to at least one coordinate in each region is the peak value in the wavenumber domain power distribution of the first channel, the first channel is the channel from the network device to the terminal, and N is a positive integer.

[0013] According to a fifth aspect of the embodiments of this disclosure, a communication system is provided, comprising:

[0014] The terminal is configured to implement the method proposed in the first aspect; and,

[0015] The network device is configured to implement the method proposed in the second aspect.

[0016] According to a sixth aspect of the present disclosure, a communication device is provided, comprising:

[0017] One or more processors;

[0018] The communication device is used to execute the method proposed in the first or second aspect.

[0019] According to a seventh aspect of the present disclosure, a storage medium is provided that stores instructions which, when executed on a communication device, cause the communication device to perform the method as described in the first or second aspect.

[0020] According to an eighth aspect of the present disclosure, a computer program product is provided, comprising a computer program that, when executed by a communication device, implements the method as proposed in the first or second aspect.

[0021] The embodiments disclosed herein enable network devices to obtain accurate channel state information, thereby improving link capacity. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0023] Figure 1A is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

[0024] Figure 1B is an exemplary schematic diagram showing that the electromagnetic field of an antenna array provided according to an embodiment of the present disclosure is divided into a near field and a far field.

[0025] Figure 1C is an exemplary schematic diagram of electromagnetic waves received by a user equipment (UE) in the far field and near field according to an embodiment of the present disclosure.

[0026] Figure 1D is an exemplary schematic diagram of the wavenumber domain power distribution of a channel provided according to an embodiment of the present disclosure.

[0027] Figure 2 is an exemplary interactive schematic diagram of an information reporting method provided according to an embodiment of the present disclosure.

[0028] Figure 3A is an exemplary flowchart of an information reporting method provided according to an embodiment of the present disclosure.

[0029] Figure 3B is an exemplary flowchart of an information reporting method provided according to an embodiment of the present disclosure.

[0030] Figure 4A is an exemplary flowchart of an information reporting method provided according to an embodiment of the present disclosure.

[0031] Figure 4B is an exemplary flowchart of an information reporting method provided according to an embodiment of the present disclosure.

[0032] Figure 5 is an exemplary interactive schematic diagram of an information reporting method provided according to an embodiment of the present disclosure.

[0033] Figure 6 is an exemplary interactive schematic diagram of a wavenumber domain information reporting method provided according to an embodiment of the present disclosure.

[0034] Figure 7A is an exemplary schematic diagram of the structure of a terminal provided according to an embodiment of the present disclosure.

[0035] Figure 7B is an exemplary schematic diagram of the structure of a network device provided according to an embodiment of the present disclosure.

[0036] Figure 8A is an exemplary schematic diagram of the structure of a communication device provided according to an embodiment of the present disclosure.

[0037] Figure 8B is an exemplary schematic diagram of the structure of a chip provided according to an embodiment of the present disclosure. Detailed Implementation

[0038] This disclosure presents an information reporting method, a terminal, and a network device.

[0039] In a first aspect, embodiments of this disclosure propose an information reporting method, executed by a terminal, the method comprising:

[0040] Send first information to the network device, wherein the first information is used to indicate N regions of the first channel in the wavenumber domain, the wavenumber domain power distribution value corresponding to at least one coordinate in each region is the peak value in the wavenumber domain power distribution of the first channel, the first channel is the channel from the network device to the terminal, and N is a positive integer.

[0041] In the above embodiments, the first information indicates N peak regions (or focal regions) in the wavenumber domain power distribution of the first channel. The first information is essentially a type of channel state information, thus enabling the transmitting end (network device) to obtain accurate channel state information. After receiving the first information, the network device can better match the channel (e.g., transmitting end precoding and spatial domain channel matching), thereby improving link capacity.

[0042] In conjunction with some embodiments of the first aspect, in some embodiments, the first information is used to indicate at least one of the following:

[0043] The coordinates of a pair of diagonal vertices of the first region in the N regions, wherein the region type of the first region is rectangular;

[0044] The coordinates of a vertex of the first region in the N regions, the width of the rectangle, and the height of the rectangle;

[0045] The center coordinates and radius of the second region among the N regions, wherein the region type of the second region is circular;

[0046] The coordinates of the ellipse center, the major radius, the minor radius, and the rotation angle of the ellipse of the third region among the N regions, and the region type of the third region is ellipse.

[0047] In the above embodiments, the N regions may include at least one of a first region, a second region, and a third region. Different regions of different types can be indicated in different ways. For example, for the first region, the first information can indicate the region by the coordinates of a pair of diagonal vertices, or the first information can indicate the region by the coordinates of a vertex, the width of the rectangle, and the height of the rectangle.

[0048] In conjunction with some embodiments of the first aspect, in some embodiments, the ellipse rotation angle is one of the following:

[0049] The angle between the major axis of the ellipse and the horizontal direction of the wavenumber domain;

[0050] The angle between the major axis of the ellipse and the direction perpendicular to the wavenumber domain;

[0051] The angle between the minor axis of the ellipse and the horizontal direction of the wavenumber domain;

[0052] The angle between the minor axis of the ellipse and the direction perpendicular to the wavenumber domain.

[0053] In conjunction with some embodiments of the first aspect, in some embodiments, the first information is included in channel state information (CSI).

[0054] In the above embodiments, the first information is essentially a type of channel state information (CSI), therefore, the first information can be included in the CSI for reporting. In some implementations, the network device can be configured to include the first information in the CSI quantity that the terminal needs to report. Based on this configuration, the terminal can report the first information as part of the CSI.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, the peak value is a local peak value or a global peak value.

[0056] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0057] Receive second information sent by the network device, the second information being used to indicate at least one of the following:

[0058] A threshold is set whereby the wavenumber domain power distribution value corresponding to at least one coordinate within each region is not less than the threshold.

[0059] The N;

[0060] M, where M is a positive integer, and N is not greater than M;

[0061] Coordinate system type;

[0062] The region types of the N regions.

[0063] In the above embodiments, the network device can configure the reporting of the first information, such as configuring at least one of the following parameters: threshold, number of regions N contained in the first information, maximum number of regions M contained in the first information, coordinate system type, and region type.

[0064] In conjunction with some embodiments of the first aspect, in some embodiments, the coordinate system type is one of the following:

[0065] Cartesian coordinate system;

[0066] Polar coordinate system.

[0067] In the above embodiments, the coordinate system type configured in the second information is a Cartesian coordinate system or a polar coordinate system. The coordinate system type of each coordinate in the wavenumber domain is the same as the coordinate system type configured in the second information. Therefore, the coordinate system type of the coordinates in the first information (such as the coordinates of the vertex, the coordinates of the center of the circle, the coordinates of the center of the ellipse, etc.) is the same as the coordinate system type configured in the second information.

[0068] In conjunction with some embodiments of the first aspect, in some embodiments, the region type of the N regions includes at least one of the following:

[0069] rectangle;

[0070] Circular;

[0071] Oval shape.

[0072] In the above embodiments, the second information may indicate one region type or multiple region types simultaneously. The region type of each of the N regions is the same as the region type configured in the second information, or the same as one of the region types configured in the second information.

[0073] Secondly, embodiments of this disclosure provide an information reporting method, executed by a network device, the method comprising:

[0074] The receiving terminal sends first information, wherein the first information is used to indicate N regions of the first channel in the wavenumber domain, and the wavenumber domain power distribution value corresponding to at least one coordinate in each region is the peak value in the wavenumber domain power distribution of the first channel, the first channel is the channel from the network device to the terminal, and N is a positive integer.

[0075] In conjunction with some embodiments of the second aspect, in some embodiments, the first information is used to indicate at least one of the following:

[0076] The coordinates of a pair of diagonal vertices of the first region in the N regions, wherein the region type of the first region is rectangular;

[0077] The coordinates of a vertex of the first region in the N regions, the width of the rectangle, and the height of the rectangle;

[0078] The center coordinates and radius of the second region among the N regions, wherein the region type of the second region is circular;

[0079] The coordinates of the ellipse center, the major radius, the minor radius, and the rotation angle of the ellipse of the third region among the N regions, and the region type of the third region is ellipse.

[0080] In conjunction with some embodiments of the second aspect, in some embodiments, the ellipse rotation angle is one of the following:

[0081] The angle between the major axis of the ellipse and the horizontal direction of the wavenumber domain;

[0082] The angle between the major axis of the ellipse and the direction perpendicular to the wavenumber domain;

[0083] The angle between the minor axis of the ellipse and the horizontal direction of the wavenumber domain;

[0084] The angle between the minor axis of the ellipse and the direction perpendicular to the wavenumber domain.

[0085] In conjunction with some embodiments of the second aspect, in some embodiments, the first information is included in the CSI.

[0086] In conjunction with some embodiments of the second aspect, in some embodiments, the peak value is a local peak value or a global peak value.

[0087] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0088] Send a second message to the terminal, the second message indicating at least one of the following:

[0089] A threshold is set whereby the wavenumber domain power distribution value corresponding to at least one coordinate within each region is not less than the threshold.

[0090] The N;

[0091] M, where M is a positive integer, and N is not greater than M;

[0092] Coordinate system type;

[0093] The region types of the N regions.

[0094] In conjunction with some embodiments of the second aspect, in some embodiments, the coordinate system type is one of the following:

[0095] Cartesian coordinate system;

[0096] Polar coordinate system.

[0097] In conjunction with some embodiments of the second aspect, in some embodiments, the region type of the N regions includes at least one of the following:

[0098] rectangle;

[0099] Circular;

[0100] Oval shape.

[0101] Thirdly, embodiments of this disclosure provide a terminal, including:

[0102] The transceiver module is configured to send first information to a network device, wherein the first information is used to indicate N regions of a first channel in the wavenumber domain, the wavenumber domain power distribution value corresponding to at least one coordinate in each region is the peak value in the wavenumber domain power distribution of the first channel, the first channel is the channel from the network device to the terminal, and N is a positive integer.

[0103] Fourthly, embodiments of this disclosure provide a network device, including:

[0104] The transceiver module is configured to receive first information sent by the terminal, wherein the first information is used to indicate N regions of the first channel in the wavenumber domain, and the wavenumber domain power distribution value corresponding to at least one coordinate in each region is the peak value in the wavenumber domain power distribution of the first channel, the first channel is the channel from the network device to the terminal, and N is a positive integer.

[0105] Fifthly, embodiments of this disclosure provide a communication system, including:

[0106] The terminal is configured to implement the method described in the optional implementation of the first aspect; and,

[0107] The network device is configured to implement the method described in the optional implementation of the second aspect.

[0108] Sixthly, embodiments of this disclosure provide a communication device, including:

[0109] One or more processors;

[0110] The communication device is used to execute the method described in the optional implementation of the first or second aspect.

[0111] In a seventh aspect, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method as described in an optional implementation of the first or second aspect.

[0112] Eighthly, embodiments of this disclosure provide a computer program product, including a computer program that, when executed by a communication device, implements the method as described in the optional implementation of the first or second aspect.

[0113] In a ninth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in an optional implementation of the first or second aspect.

[0114] In a tenth aspect, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described in optional implementations of the first or second aspect.

[0115] It is understood that the aforementioned terminals, network devices, communication systems, communication equipment, storage media, computer program products, computer programs, chips, or chip systems are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0116] This disclosure provides an information reporting method, a terminal, and a network device. In some embodiments, the terms "information reporting method" and "information processing method," "communication method," etc., can be used interchangeably.

[0117] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0118] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0119] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0120] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0121] In the embodiments disclosed herein, "multiple" refers to two or more.

[0122] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0123] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0124] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0125] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0126] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0127] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0128] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0129] In some embodiments, the apparatus and device may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "body", etc.

[0130] In some embodiments, "network" can be interpreted as devices included in the network, such as access network devices, core network devices, etc.

[0131] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)," "base station (BS)," "radio base station," or "fixed station." In some embodiments, it may also be understood as "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," or "bandwidth part (BWP)."

[0132] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," etc.

[0133] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0134] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0135] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0136] Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1A, the communication system 100 includes a terminal 101 and a network device 102.

[0137] In some embodiments, terminal 101 includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, smart door lock, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0138] In some embodiments, network device 102 may include at least one of access network device and core network device. In some embodiments, access network device is, for example, a node or device that connects a terminal to a wireless network. Access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation evolved Node B (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system.

[0139] In some embodiments, a core network device may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of the aforementioned one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), or a Next Generation Core (NGC).

[0140] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0141] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0142] It is understood that the system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0143] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1A, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1A are illustrative. The communication system may include all or some of the main bodies in FIG1A, or it may include other main bodies outside of FIG1A. The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0144] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0145] Multiple-input multiple-output (MIMO) technology can significantly improve data transmission rates without increasing bandwidth. Moreover, beamforming gain is proportional to the number of antennas, so it has always attracted much attention from academia and industry and is one of the core technologies of the physical layer of wireless communication.

[0146] Current low- and mid-frequency spectrum resources are already overcrowded. To meet the ever-increasing demand for data rates, academia and industry have begun exploring higher-frequency spectrum resources, such as millimeter-wave and terahertz bands. High-frequency transmission suffers from greater transmission attenuation, especially due to severe absorption by water molecules and oxygen in the air, resulting in very limited transmission distance and coverage. However, higher frequencies mean shorter wavelengths, allowing for the deployment of more antennas within the same aperture size compared to low- and mid-frequency spectrum. Multi-antenna technology can effectively compensate for high-frequency transmission losses, thereby extending coverage and transmission distance.

[0147] MIMO technology is one of the most important physical layer transmission technologies in recent decades. Examples include MIMO in 4G LTE systems and massive MIMO in 5G NR systems. In the pre-research of 6G wireless communication technologies, MIMO technology has once again gained favor not only from academia but also from industry.

[0148] For a given antenna array (whose aperture is denoted as D), its electromagnetic (EM) field can be divided into a near field and a far field, as shown in Figure 1B. The boundary between the near field and the far field is... This is known as the Rayleigh distance.

[0149] Clearly, the size of the near-field range depends on the antenna aperture (D) and wavelength (λ). In existing cellular wireless communication systems, user equipment (UEs) are mostly located in the far field of the base station (such as a gNB) transmitting antenna array. As mentioned above, if the carrier frequency increases and / or the antenna array becomes larger, the near-field range will expand. Even if the existing network topology remains unchanged (such as the distance between base stations, UE distribution, etc.), a current far-field UE may very well become a near-field UE.

[0150] In the far field, the electromagnetic waves received by the UE are plane waves, and the beam targeting the UE is a two-dimensional (2D) directional beam pointing towards the target UE. For any path in multipath propagation, the time and phase of arrival at the UE's receiving antenna array are equally spaced, as shown in Figure 1C. However, if the UE is in the near field, the electromagnetic waves received by the UE are spherical waves, and the beam targeting the UE is a three-dimensional (3D) beam surrounding the target UE. For any path in multipath propagation, the time and phase of arrival at the UE's receiving antenna array will no longer be equally spaced, as shown in Figure 1C.

[0151] The performance of MIMO technology largely depends on accurate channel state information (CSI). If the transmitter cannot obtain accurate CSI, the performance of MIMO technology (including its efficiency and reliability) will be significantly reduced. Therefore, CSI acquisition is a hot research topic in MIMO technology.

[0152] In existing wireless communication systems, UEs are located in the far field of the gNB transmit antenna array. Since the time and phase of arrival at the UE receive antenna array are equally spaced for any path in multipath propagation, almost all MIMO systems currently construct their codebooks based on DFT vectors. For example, the codebook in 4G LTE consists of DFT vectors and their Householder transformed vectors. In 5G NR, Type 1 codebooks consist of DFT vectors and their oversampled versions; Type 2 codebooks use DFT vectors and their oversampled versions as spatial orthogonal basis vectors (W1), using these orthogonal basis vectors and corresponding projection coefficients to represent each precoding vector or matrix. However, if the UE is located in the near field of the gNB transmit antenna array, the codebook constructed based on DFT vectors will no longer be applicable. Therefore, CSI acquisition in near-field scenarios is one of the technical challenges that needs to be addressed.

[0153] Within the technical realm of 6G MIMO, holographic MIMO (HMIMO), as one of the most promising 6G MIMO candidate technologies, refers to an array that integrates a super-large or even countless antenna elements in a finite space. Progressively, holographic MIMO possesses a spatially continuous electromagnetic aperture, containing countless antenna elements with extremely small antenna spacing. Holographic MIMO boasts very high spatial resolution, spectral efficiency, and energy efficiency.

[0154] In some related studies, based on the Helmholtz equation and Weyl expansion, the channel from the transmitter (located at spatial point s) to the receiver (located at spatial point r) can be expressed as:

[0155] in,

[0156] The wavenumber vector corresponding to the source or transmitter.

[0157] This is the wavenumber vector corresponding to the receiving end.

[0158] H(k x ,k y ,k x ,k y() represents the wavenumber domain response of the channel;

[0159] This refers to the source response or the wavenumber domain response of the transmitting array.

[0160] This refers to the receive response or the wavenumber domain response of the receiver array.

[0161] Let λ be the wave number and λ be the wavelength.

[0162] In this embodiment of the disclosure, the wavenumber is a physical quantity defined as 2π / λ, and the wavenumber domain is the transform domain of the spatial domain.

[0163] It should be noted that in some academic research, antenna arrays are typically studied and discussed in the xoy plane, where x generally represents the horizontal direction and y generally represents the vertical direction. However, in practical applications, especially in 3GPP technical reports, antenna arrays are often studied and discussed in the yoz plane, where y represents the horizontal direction and z represents the vertical direction. For ease of understanding, we will use h to represent the horizontal direction and v to represent the vertical direction below.

[0164] Whether in the near field or the far field, the channels are distributed in clusters in the wavenumber domain, exhibiting sparsity. The difference is that the clusters of near-field channels are larger than those of far-field channels.

[0165] Figure 2 is an interactive schematic diagram of an information reporting method according to an embodiment of the present disclosure. As shown in Figure 2, this embodiment of the disclosure relates to an information reporting method, which includes:

[0166] Step S2101: The network device sends the second information to the terminal.

[0167] In some embodiments, the terminal receives second information sent by the network device. In some embodiments, the name of the second information is not limited, and it may be, for example, "configuration information", "WDI report configuration", etc.

[0168] In some embodiments, the second information is used to configure the terminal to report the first information. In some embodiments, the name of the first information is not limited, and it may be, for example, "wavenumber domain information (WDI)".

[0169] In some embodiments, the first information is used to indicate N regions of the first channel in the wavenumber domain. N is a positive integer. The first channel is a channel from the network device to the terminal. The first channel is a downlink channel, for example, the first channel is used by the network device to transmit information to the terminal. Optionally, each region corresponds to a continuous region in the wavenumber domain. For any one of the N regions, the wavenumber domain power distribution value corresponding to at least one coordinate in the region is the peak (or focus) in the wavenumber domain power distribution of the first channel. Therefore, each region can also be called a peak region (or focus region). The wavenumber domain power distribution of the first channel refers to the power distribution of the first channel in the wavenumber domain, which describes the wavenumber domain power distribution value corresponding to different coordinates of the first channel in the wavenumber domain. Figure 1D shows an exemplary schematic diagram of the wavenumber domain power distribution of the first channel. As shown in Figure 1D, the wavenumber domain power distribution of the first channel is located at a radius equal to the wavenumber. Inside the circle. Optionally, the wavenumber domain power distribution of the first channel can also be normalized to the wavenumber domain. That is, the wavenumber domain power distribution can be located inside a circle with a radius of 1.

[0170] A coordinate of a channel in the wavenumber domain can represent a direction in the spatial domain (e.g., represented by horizontal and vertical angles), and the wavenumber domain power distribution value corresponding to that coordinate can represent the power of the channel along that direction.

[0171] It is worth noting that the peak value in this embodiment may refer to a local peak value (the value of which is not less than the wavenumber domain power distribution value corresponding to the surrounding coordinate points) or a global peak value (the value of which is not less than the wavenumber domain power distribution value corresponding to the coordinate points in the entire wavenumber domain).

[0172] In some embodiments, the terminal measures a reference signal (such as a channel state information reference signal (CSI-RS), but is not limited thereto) and performs channel estimation to obtain the spatial and wavenumber domain representations of the channel. Then, based on the estimated channel, the terminal calculates the wavenumber domain power distribution of the channel. The wavenumber domain power distribution can be the channel's power spectral density in the wavenumber domain, or the spatial scattering function, or the square of the spectral factor, or it can correspond only to the power spectral density on the network device side, or only to the spatial scattering function on the network device side, or only to the square of the spectral factor on the network device side.

[0173] In some embodiments, the second information is used to indicate (configure) at least one of the following:

[0174] Threshold;

[0175] The first number N;

[0176] The second number M, where M is a positive integer;

[0177] Coordinate system type;

[0178] Region type.

[0179] It should be noted that the above thresholds can be absolute thresholds (e.g., units of watts, milliwatts, or their corresponding logarithmic scales, such as decibel watts (dBW) or decibel milliwatts (dBmW)) or relative thresholds. Optionally, relative thresholds can be positive numbers between 0 and 1; for example, a relative threshold of 0.8 represents 0.8 times the maximum value.

[0180] The first number is the number of regions contained in the first piece of information. The second number is the maximum number of regions contained in the first piece of information. For the first number N and the second number M, N is not greater than M. Optionally, N can be equal to M.

[0181] In some embodiments, the coordinate system type described above can be one of the following:

[0182] A rectangular coordinate system, also known as a Cartesian coordinate system;

[0183] Polar coordinate system.

[0184] Optionally, the coordinate system type of each coordinate in the wavenumber domain is the same as the coordinate system type configured in the second information.

[0185] Each coordinate in the wavenumber domain can be in either a Cartesian or polar coordinate system. If the coordinate system is Cartesian, a coordinate in the wavenumber domain can be represented by its value in the horizontal direction and its value in the vertical direction. If the coordinate system is polar, a coordinate in the wavenumber domain can be represented by its polar radius and polar angle.

[0186] In some embodiments, the above-mentioned region types include, but are not limited to, at least one of the following:

[0187] rectangle;

[0188] Circular;

[0189] Oval shape.

[0190] In some embodiments, the region type may not be limited to the types listed above; for example, it may be other types or include more types.

[0191] In some embodiments, the second information may indicate only one region type, such as a rectangle, a circle, or an ellipse. The second information may also indicate multiple region types simultaneously, such as both rectangles and circles, or both circles and ellipses. The region types of the aforementioned N regions can be the same, for example, all N regions can be rectangles; or the region types of the N regions can be different, for example, one region can be a rectangle and another can be a circle. Optionally, if the second information indicates only one region type, then the region types of the N regions are the same as those indicated by the second information. For example, if the second information indicates a rectangle, then all N regions are rectangles. Optionally, if the second information indicates multiple region types simultaneously, then the region type of any one of the N regions is the same as one of the multiple region types indicated by the second information. For example, if the second information indicates both rectangles and circles, then any one of the N regions can be either a rectangle or a circle.

[0192] For ease of description, if a region is rectangular, it is referred to as the first region; if a region is circular, it is referred to as the second region; and if a region is elliptical, it is referred to as the third region. The N regions may include at least one of the first, second, and third regions. In some embodiments, all N regions may be the first region, or all N regions may be the second region, or all N regions may be the third region, or one of the N regions may be the first region and the other may be the third region, and so on.

[0193] In some embodiments, the second information can be sent to the terminal via configuration signaling. Optionally, the configuration signaling can be at least one of radio resource control (RRC), media access control element (MAC CE), and downlink control information (DCI).

[0194] In some embodiments, step S2101 is an optional step. For example, the parameter indicated by the second information can be a default value, a predefined value, or determined by the terminal itself. Optionally, the second information can be a default value, a predefined value, or determined by the terminal itself.

[0195] Step S2102: The terminal sends the first information to the network device.

[0196] In some embodiments, the network device receives first information sent by the terminal. The first information is used to indicate N regions of the first channel in the wavenumber domain. Optionally, the first information may directly or indirectly indicate the N regions.

[0197] In some embodiments, the terminal determines the first information based on the second information.

[0198] Optionally, as described above, the second information can be used to configure at least one of the following:

[0199] Threshold;

[0200] The first number N;

[0201] The second number M;

[0202] Coordinate system type;

[0203] Region type.

[0204] Optionally, if a threshold is configured in the second information, then for any of the N regions, the wavenumber domain power distribution value corresponding to at least one coordinate in that region is not less than the threshold configured in the second information.

[0205] Optionally, if no threshold is configured in the second information, the above threshold can be a default value, or the terminal can determine the threshold itself, or the terminal can not determine the area to be reported based on the threshold.

[0206] Optionally, if a first number is configured in the second information, then the number of regions reported by the first information is equal to the first number configured in the second information.

[0207] Optionally, if a second number is configured in the second information, then the number of regions reported by the first information shall not be greater than the second number configured in the second information.

[0208] Optionally, if a coordinate system type is configured in the second information, then the coordinate system type of each coordinate in the wavenumber domain is the same as the coordinate system type configured in the second information. That is, the coordinate system type of the coordinates in the first information is the same as the coordinate system type configured in the second information.

[0209] Optionally, if a region type is configured in the second information, then the region type of each of the N regions is the same as the region type configured in the second information, or is the same as one of the region types configured in the second information.

[0210] In some embodiments, the terminal determines the region of the corresponding shape based on the peak value in the wavenumber domain power distribution of the first channel and the region type configured by the second information, and determines which regions need to be reported based on the threshold and the first number (or the second number), that is, determines N regions that need to be reported.

[0211] Optionally, the first information indicating N regions specifically indicates at least one of the following:

[0212] The coordinates of a pair of diagonal vertices of the first region among the N regions;

[0213] The coordinates of a vertex of the first region among the N regions; the width and height of the rectangle.

[0214] The center coordinates and radius (or diameter) of the second region among the N regions;

[0215] The coordinates of the ellipse center, the major radius (or major axis), the minor radius (or minor axis), and the rotation angle of the ellipse in the third region of the N regions.

[0216] Taking Figure 1D as an example, the wavenumber domain power distribution shown in Figure 1D includes three regions.

[0217] For the first region, which is of rectangular type, the first region (rectangular region) can be represented as one of the following:

[0218] (1) The coordinates of a pair of diagonal vertices of the first region, such as the coordinates of points A and B in Figure 1D; optionally, the coordinate system type of the vertices is the same as the coordinate system type configured in the second information.

[0219] (2) The coordinates, rectangle width, and rectangle height of a vertex (which can be any vertex, such as the lower left corner vertex) of the first region, for example, the coordinates of point A, rectangle width w, and rectangle height h in Figure 1D. Optionally, the coordinate system type of the vertex is the same as the coordinate system type configured in the second information.

[0220] In some embodiments, the first information includes the coordinates of a pair of diagonal vertices of the first region, and the first region is indicated by the coordinates of the pair of diagonal vertices. In some embodiments, the first information includes the coordinates of a vertex of the first region, the width of the rectangle, and the height of the rectangle, and the first region is indicated by a vertex, the width of the rectangle, and the height of the rectangle. However, this is not a limitation; for a first region of rectangular shape, it can be indicated in other ways, and this disclosure does not limit this approach.

[0221] For the second region, which is circular, it can be represented by the coordinates of the center and the radius (or diameter) of the circle, such as the coordinates of point C1 and the radius r1 in Figure 1D. Optionally, the coordinate system type of the center is the same as the coordinate system type configured in the second information.

[0222] In some embodiments, the first information includes the center coordinates and radius (or diameter) of the second region, which indicates the second region. However, this is not a limitation; for a circular second region, it can be indicated in other ways, and this disclosure does not limit this method. For example, it can also be indicated using the coordinates of the two endpoints of any diameter of the circle.

[0223] For the third region, the coordinate system type is elliptical. Therefore, the third region (elliptical region) can be represented by the coordinates of the ellipse's center, the major radius (or major axis), the minor radius (or minor axis), and the rotation angle of the ellipse. For example, the coordinates of point C2 in Figure 1D, and the major radius r... a short radius r b Rotation angle θ. Optionally, the coordinate system type of the ellipse center is the same as the coordinate system type configured in the second information.

[0224] Alternatively, the ellipse rotation angle can be one of the following:

[0225] The angle between the major axis (or major radius) of the ellipse and the horizontal direction of the wavenumber domain;

[0226] The angle between the major axis (or major radius) of the ellipse and the direction perpendicular to the wavenumber domain;

[0227] The angle between the minor axis (or minor radius) of the ellipse and the horizontal direction of the wavenumber domain;

[0228] The angle between the minor axis (or minor radius) of the ellipse and the direction perpendicular to the wavenumber domain.

[0229] Ellipse rotation angle θ∈[0,π) or Optionally, if the rotation angle is equal to its default value (e.g., θ = 0), the rotation angle may not be fed back.

[0230] In some embodiments, the first information includes the coordinates of the ellipse center of the third region, the major radius (or major axis) of the ellipse, the minor radius (or minor axis) of the ellipse, and the rotation angle of the ellipse. The third region is indicated by the coordinates of the ellipse center, the major radius (or major axis), the minor radius (or minor axis), and the rotation angle of the ellipse. However, this is not a limitation; for a third region with an elliptical shape, it can be indicated in other ways, and this disclosure does not limit this approach. For example, it can also be indicated by the coordinates of the two endpoints of the major axis and the two endpoints of the minor axis of the ellipse.

[0231] In this embodiment of the disclosure, radius, diameter, etc., can be substituted for each other.

[0232] In some embodiments, the first information may indicate not only the N regions, but also the region type corresponding to each region.

[0233] In some embodiments, the terminal may determine the first information autonomously. For example, at least one of the threshold, first number, second number, coordinate system type, and region type mentioned above may be a default value, a predefined value, or be determined autonomously by the terminal.

[0234] In some embodiments, the coordinate system type of the relevant coordinates indicated by the first information (such as the vertex coordinates of a rectangular region, the center coordinates of a circular region, the elliptical center coordinates of an elliptical region, etc.) is a Cartesian coordinate system or a polar coordinate system.

[0235] In some embodiments, if the coordinate system type is a Cartesian coordinate system, then the coordinates indicated by the first information can be represented as (k h k v ), where k h k represents the value in the horizontal direction of the wavenumber domain. v The value in the vertical direction of the wavenumber domain. Let λ be the wave number and λ be the wavelength.

[0236] In some embodiments, if the coordinate system type is a Cartesian coordinate system, then the coordinates indicated by the first information can be normalized to the wavenumber. The report will be submitted later. That is, the coordinates indicated by the first piece of information can be represented as... in,

[0237] In some embodiments, if the coordinate system type is a polar coordinate system, then the coordinates indicated by the first information can be represented as (k r ,k θ ), where k r For the polar radius, k θ Polar angle, k θ k ∈ [0, 2π) or k0 ∈ [-π, π).

[0238] In some embodiments, if the coordinate system type is a polar coordinate system, then the polar radius (kr) of the coordinates indicated by the first information can be normalized to the wavenumber. The report will be submitted later. That is, the coordinates indicated by the first piece of information can be represented as... in, k θ ∈[0, 2π) or k θ ∈[-π, π).

[0239] In some embodiments, the first information may be reported as part of the CSI, i.e., the first information is included in the CSI. Optionally, the network device may be configured to include the first information in the CSI quantity that the terminal needs to report, for example, through second information or other information. Optionally, the terminal is configured to include the first information in the CSI quantity that needs to be reported, and the terminal reports the first information as part of the CSI. Optionally, the terminal independently determines to report the first information as part of the CSI. Optionally, the terminal reports the first information to the network device as part of the CSI payload.

[0240] In some embodiments, the first information reporting may be performed via at least one of the physical uplink control channel (PUCCH) and the physical uplink shared channel.

[0241] As described above, the first information indicates N peak regions (or focal regions) in the wavenumber domain power distribution of the first channel. The first information is essentially a type of channel state information. After receiving the first information, the transmitting end (network device) can better match the channel (e.g., transmitting end precoding and spatial domain channel matching), thereby improving link capacity.

[0242] In this embodiment of the disclosure, the terminal reports N peak regions (or focal regions) in the wavenumber domain power distribution of the first channel to the network device. As mentioned above, the channel is distributed in a clustered form in the wavenumber domain, and the clusters of the near-field channel are larger than those of the far-field channel. Therefore, in the near-field scenario, reporting the peak regions enables the transmitting end (network device) to obtain accurate channel state information and saves overhead.

[0243] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "codepoint", "bit", and "data" can be used interchangeably.

[0244] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or autonomous implementation, among other meanings.

[0245] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0246] The information reporting method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2102. For example, step S2101 may be implemented as a separate embodiment, and step S2102 may be implemented as a separate embodiment, but is not limited thereto.

[0247] In some embodiments, step S2101 is optional and may be omitted or replaced in different embodiments.

[0248] In some embodiments, other optional implementations described before or after the specification corresponding to FIG2 may be referred to.

[0249] Figure 3A is a flowchart illustrating an information reporting method according to an embodiment of the present disclosure. As shown in Figure 3A, the present disclosure relates to an information reporting method executed by a terminal, and the method includes:

[0250] Step S3101: Receive the second information.

[0251] The optional implementation of step S3101 can be found in the optional implementation of step S2101 in Figure 2 and other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0252] In some embodiments, the second information is used to indicate at least one of the following:

[0253] Threshold;

[0254] The first number N;

[0255] The second number M;

[0256] Coordinate system type;

[0257] Region type.

[0258] In some embodiments, the terminal receives second information sent by a network device, but is not limited thereto; it may also receive second information sent by other entities.

[0259] In some embodiments, the terminal obtains second information defined by the protocol. For example, at least one of the aforementioned threshold, first number N, second number M, coordinate system type, and region type is defined by the protocol.

[0260] In some embodiments, the terminal obtains the second information based on default values. For example, at least one of the above-mentioned threshold, first number N, second number M, coordinate system type, and region type is a default value.

[0261] In some embodiments, the terminal autonomously determines the second information. For example, at least one of the above-mentioned threshold, first number N, second number M, coordinate system type, and region type is autonomously determined by the terminal.

[0262] In some embodiments, the network device may be configured to include first information in the CSI quantity that the terminal needs to report, for example, it may be configured through second information or other information.

[0263] In some embodiments, step S3101 is omitted, and the function or parameter indicated by the second information is a default or default value.

[0264] Step S3102: Send the first message.

[0265] The optional implementation of step S3102 can be found in the optional implementation of step S2102 in Figure 2 and other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0266] In some embodiments, the terminal sends first information to a network device, but is not limited thereto; it may also send first information to other entities.

[0267] In some embodiments, the first information is used to indicate N regions of the first channel in the wavenumber domain. Each region corresponds to a peak region (or focal region) in the wavenumber domain power distribution of the first channel. Optionally, the first information may directly or indirectly indicate the N regions.

[0268] The first information indicating N regions can be provided in a manner including, but not limited to, at least one of the following: For the first region (rectangular region) among the N regions, the first information can indicate the coordinates of a pair of opposite vertices of the first region, or the first information can indicate the coordinates of a vertex of the first region, the width of the rectangle, and the height of the rectangle, but is not limited thereto; For the second region (circular region) among the N regions, the first information can indicate the coordinates of the center of the second region and the radius of the circle, but is not limited thereto; For the third region (elliptical region) among the N regions, the first information can indicate the coordinates of the center of the ellipse of the third region, the major radius of the ellipse, the minor radius of the ellipse, and the rotation angle of the ellipse, but is not limited thereto.

[0269] The information reporting method involved in the embodiments of this disclosure may include at least one of steps S3101 to S3102. For example, step S3101 may be implemented as a separate embodiment, and step S3102 may be implemented as a separate embodiment, but is not limited thereto.

[0270] In some embodiments, step S3101 is optional and may be omitted or replaced in different embodiments.

[0271] Figure 3B is a flowchart illustrating an information reporting method according to an embodiment of the present disclosure. As shown in Figure 3B, the present disclosure relates to an information reporting method executed by a terminal, and the method includes:

[0272] Step S3201: Send the first message.

[0273] The optional implementation of step S3201 can be found in the optional implementation of step S2102 in Figure 2, step S3102 in Figure 3A, and other related parts in the embodiments involved in Figures 2 and 3A, which will not be repeated here.

[0274] In some embodiments, the terminal sends first information to a network device, but is not limited thereto; it may also send first information to other entities.

[0275] In some embodiments, the first information is used to indicate N regions of the first channel in the wavenumber domain, where the wavenumber domain power distribution value corresponding to at least one coordinate in each region is the peak value in the wavenumber domain power distribution of the first channel, the first channel is the channel from the network device to the terminal, and N is a positive integer.

[0276] In some embodiments, the aforementioned peak value can be a local peak value or a global peak value.

[0277] In some embodiments, the first information is used to indicate at least one of the following:

[0278] The coordinates of a pair of diagonal vertices of the first region among the N regions;

[0279] The coordinates of a vertex of the first region among the N regions; the width and height of the rectangle.

[0280] The center coordinates and radius (or diameter) of the second region among the N regions;

[0281] The coordinates of the ellipse center, the major radius (or major axis), the minor radius (or minor axis), and the rotation angle of the ellipse in the third region of the N regions.

[0282] The first region is a rectangle. The second region is a circle. The third region is an ellipse.

[0283] In some embodiments, the ellipse rotation angle is one of the following:

[0284] The angle between the major axis (or major radius) of the ellipse and the horizontal direction of the wavenumber domain;

[0285] The angle between the major axis (or major radius) of the ellipse and the direction perpendicular to the wavenumber domain;

[0286] The angle between the minor axis (or minor radius) of the ellipse and the horizontal direction of the wavenumber domain;

[0287] The angle between the minor axis (or minor radius) of the ellipse and the direction perpendicular to the wavenumber domain.

[0288] In some embodiments, the first information is included in the CSI.

[0289] In some embodiments, the first information can be determined based on the second information. Optionally, the terminal receives the second information sent by the network device, or the second information can be a default value, or the second information can be predefined, or the terminal can determine the second information independently.

[0290] In some embodiments, the second information is used to indicate at least one of the following:

[0291] Threshold: The wavenumber domain power distribution value corresponding to at least one coordinate in each region is not less than the threshold.

[0292] The first number N;

[0293] The second number M, where M is a positive integer;

[0294] Coordinate system type;

[0295] Region type.

[0296] In this embodiment of the disclosure, N and M are both positive integers greater than or equal to 1, and N is not greater than M. In some embodiments, N may be equal to M.

[0297] In some embodiments, the coordinate system type indicated by the second information is one of the following:

[0298] Cartesian coordinate system;

[0299] Polar coordinate system.

[0300] The coordinate system type of each coordinate in the wavenumber domain is the same as the coordinate system type indicated in the second information, that is, the coordinate system type of the coordinates in the first information is the same as the coordinate system type indicated in the second information.

[0301] In some embodiments, the region type indicated by the second information includes at least one of the following:

[0302] rectangle;

[0303] Circular;

[0304] Oval shape.

[0305] In some embodiments, the region type of the N regions is the same as the region type indicated in the second information, or the region type of each of the N regions is the same as a region type indicated in the second information.

[0306] Figure 4A is a flowchart illustrating an information reporting method according to an embodiment of the present disclosure. As shown in Figure 4A, this embodiment of the present disclosure relates to an information reporting method, executed by a network device, the method including:

[0307] Step S4101: Send the second message.

[0308] The optional implementation of step S4101 can be found in the optional implementation of step S2101 in Figure 2 and other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0309] In some embodiments, the second information is used to indicate at least one of the following:

[0310] Threshold;

[0311] The first number N;

[0312] The second number M;

[0313] Coordinate system type;

[0314] Region type.

[0315] In some embodiments, the network device sends second information to the terminal, but is not limited thereto; it may also send second information to other entities.

[0316] In some embodiments, the second information may be specified by a protocol.

[0317] In some embodiments, the second information can be a default value.

[0318] In some embodiments, the second information may be determined autonomously by the terminal.

[0319] In some embodiments, the network device may be configured to include first information in the CSI quantity that the terminal needs to report, for example, it may be configured through second information or other information.

[0320] In some embodiments, step S4101 is omitted, and the function or parameter indicated by the second information is a default or default value.

[0321] Step S4102: Receive the first information.

[0322] The optional implementation of step S4102 can be found in the optional implementation of step S2102 in Figure 2 and other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0323] In some embodiments, the network device receives first information sent by the terminal, but is not limited thereto; it may also receive first information sent by other entities.

[0324] In some embodiments, the first information is used to indicate N regions of the first channel in the wavenumber domain. Each region corresponds to a peak region (or focal region) in the wavenumber domain power distribution of the first channel. Optionally, the first information may directly or indirectly indicate the N regions.

[0325] The first information indicating N regions can be provided in a manner including, but not limited to, at least one of the following: For the first region (rectangular region) among the N regions, the first information can indicate the coordinates of a pair of opposite vertices of the first region, or the first information can indicate the coordinates of a vertex of the first region, the width of the rectangle, and the height of the rectangle, but is not limited thereto; For the second region (circular region) among the N regions, the first information can indicate the coordinates of the center of the second region and the radius of the circle, but is not limited thereto; For the third region (elliptical region) among the N regions, the first information can indicate the coordinates of the center of the ellipse of the third region, the major radius of the ellipse, the minor radius of the ellipse, and the rotation angle of the ellipse, but is not limited thereto.

[0326] The information reporting method disclosed in this embodiment may include at least one of steps S4101 to S4102. For example, step S4101 may be implemented as a separate embodiment, and step S4102 may be implemented as a separate embodiment, but is not limited thereto.

[0327] In some embodiments, step S4101 is optional and may be omitted or replaced in different embodiments.

[0328] Figure 4B is a flowchart illustrating an information reporting method according to an embodiment of the present disclosure. As shown in Figure 4B, the present disclosure relates to an information reporting method executed by a network device, and the method includes:

[0329] Step S4201: Receive the first information.

[0330] The optional implementation of step S4201 can be found in the optional implementation of step S2102 in Figure 2, step S4102 in Figure 4A, and other related parts in the embodiments involved in Figures 2 and 4A, which will not be repeated here.

[0331] In some embodiments, the network device receives first information sent by the terminal, but is not limited thereto; it may also receive first information sent by other entities.

[0332] In some embodiments, the first information is used to indicate N regions of the first channel in the wavenumber domain, where the wavenumber domain power distribution value corresponding to at least one coordinate in each region is the peak value in the wavenumber domain power distribution of the first channel, the first channel is the channel from the network device to the terminal, and N is a positive integer.

[0333] In some embodiments, the aforementioned peak value can be a local peak value or a global peak value.

[0334] In some embodiments, the first information is used to indicate at least one of the following:

[0335] The coordinates of a pair of diagonal vertices of the first region among the N regions;

[0336] The coordinates of a vertex of the first region among the N regions; the width and height of the rectangle.

[0337] The center coordinates and radius (or diameter) of the second region among the N regions;

[0338] The coordinates of the ellipse center, the major radius (or major axis), the minor radius (or minor axis), and the rotation angle of the ellipse in the third region of the N regions.

[0339] The first region is a rectangle. The second region is a circle. The third region is an ellipse.

[0340] In some embodiments, the ellipse rotation angle is one of the following:

[0341] The angle between the major axis (or major radius) of the ellipse and the horizontal direction of the wavenumber domain;

[0342] The angle between the major axis (or major radius) of the ellipse and the direction perpendicular to the wavenumber domain;

[0343] The angle between the minor axis (or minor radius) of the ellipse and the horizontal direction of the wavenumber domain;

[0344] The angle between the minor axis (or minor radius) of the ellipse and the direction perpendicular to the wavenumber domain.

[0345] In some embodiments, the first information is included in the CSI.

[0346] In some embodiments, the first information can be determined based on the second information. Optionally, the network device sends the second information to the terminal, or the second information can be a default value, or the second information can be predefined, or the terminal can determine the second information independently.

[0347] In some embodiments, the second information is used to indicate at least one of the following:

[0348] Threshold: The wavenumber domain power distribution value corresponding to at least one coordinate in each region is not less than the threshold.

[0349] The first number N;

[0350] The second number M, where M is a positive integer;

[0351] Coordinate system type;

[0352] Region type.

[0353] In this embodiment of the disclosure, N and M are both positive integers greater than or equal to 1, and N is not greater than M. In some embodiments, N may be equal to M.

[0354] In some embodiments, the coordinate system type indicated by the second information is one of the following:

[0355] Cartesian coordinate system;

[0356] Polar coordinate system.

[0357] The coordinate system type of each coordinate in the wavenumber domain is the same as the coordinate system type indicated in the second information, that is, the coordinate system type of the coordinates in the first information is the same as the coordinate system type indicated in the second information.

[0358] In some embodiments, the region type indicated by the second information includes at least one of the following:

[0359] rectangle;

[0360] Circular;

[0361] Oval shape.

[0362] In some embodiments, the region type of the N regions is the same as the region type indicated in the second information, or the region type of each of the N regions is the same as a region type indicated in the second information.

[0363] Figure 5 is an interactive schematic diagram of an information reporting method according to an embodiment of the present disclosure. As shown in Figure 5, this embodiment of the disclosure relates to an information reporting method, which includes:

[0364] Step S5101: The terminal sends the first information to the network device.

[0365] The optional implementations of step S5101 can be found in step S2102 in Figure 2, step S3102 in Figure 3A, step S3201 in Figure 3B, step S4102 in Figure 4A, step S4201 in Figure 4B, and other related parts in the embodiments involved in Figures 2, 3A, 3B, 4A, and 4B, which will not be repeated here.

[0366] Figure 6 is an interactive schematic diagram of a wavenumber domain information reporting method according to an embodiment of the present disclosure. As shown in Figure 6, this embodiment of the present disclosure relates to a wavenumber domain information reporting method, which includes:

[0367] Step S6101: gNB sends a WDI report configuration to UE.

[0368] The optional implementations of step S6101 can be found in the optional implementations of step S2101 in Figure 2, step S3101 in Figure 3A, step S4101 in Figure 4A, and other related parts in the embodiments involved in Figures 2, 3A, and 4A, which will not be repeated here.

[0369] In some embodiments, the WDI reporting configuration may refer to the second information in the foregoing embodiments.

[0370] In step S6101, the gNB sends the WDI report configuration to the UE. This WDI report configuration determines the format, size, and other aspects of the WDI content, and its content includes at least one of the following:

[0371] (1) Threshold, used to determine the peak region (or focal region) of the wavenumber domain power distribution that needs to be reported. This threshold can be an absolute threshold (e.g., in watts, milliwatts, or their corresponding logarithmic scales, such as dBW, dBmW) or a relative threshold. Optionally, the relative threshold can be a positive number between 0 and 1, such as a relative threshold of 0.8, which represents 0.8 times the maximum value.

[0372] The wavenumber domain power distribution can be the spatial scattering function of the channel, or the square of the spectral factor, or the spatial scattering function that corresponds only to the gNB side, or the square of the spectral factor that corresponds only to the gNB side.

[0373] (2) The number of peak regions that need to be reported, or the maximum number of peak regions that need to be reported.

[0374] (3) Coordinate system type. Such as rectangular coordinate system, also known as Cartesian coordinate system, or polar coordinate system.

[0375] (4) Peak region type. Such as rectangular, circular, elliptical, etc.

[0376] Optionally, the configuration signaling used to send the WDI report configuration can be at least one of RRC, MAC CE, and DCI.

[0377] Optionally, WDI can be reported as part of CSI.

[0378] Optionally, the gNB configuration includes WDI in the CSI quantity that the UE needs to report.

[0379] Optionally, the UE reports WDI as part of the CSI payload to the gNB.

[0380] Step S6102: The terminal reports WDI to the network device.

[0381] The optional implementations of step S6102 can be found in the optional implementations of step S2102 in Figure 2, step S3102 in Figure 3A, step S4102 in Figure 4A, and other related parts in the embodiments involved in Figures 2, 3A, and 4A, which will not be repeated here.

[0382] In some embodiments, WDI may refer to the first information in the foregoing embodiments.

[0383] In step S6102, the UE determines the WDI and feeds it back to the gNB. The WDI can be represented as one or more peak regions (or focal regions) in the wavenumber domain, each peak region corresponding to a continuous region in the wavenumber domain. Optionally, the wavenumber domain power distribution can be obtained by the UE by measuring and calculating a reference signal (such as CSI-RS), as shown in Figure 1D.

[0384] If the WDI reporting configuration specifies the number of peak regions that need to be reported, then the number of peak regions in WDI is equal to the configured number of peak regions that need to be reported.

[0385] If the WDI reporting configuration specifies a maximum number of peak regions that need to be reported, then the number of peak regions in WDI will not exceed the configured maximum number of peak regions that need to be reported.

[0386] The type of each peak region is the same as the peak region type indicated in the WDI report configuration. Furthermore, each coordinate used to determine each peak region (such as vertex coordinates, center coordinates, ellipse center coordinates, etc., as described below) is the same coordinate system type indicated in the WDI report configuration.

[0387] If the peak region type is rectangular, then the peak region can be represented as one of the following:

[0388] (1) The coordinates of a pair of diagonal vertices of the rectangular area. As shown in Figure 1D, points A and B. The coordinate system type of each vertex is the same as the coordinate system type indicated in the WDI report configuration.

[0389] (2) The coordinates of the lower left corner vertex of the rectangular area, the width of the rectangle, and the height. As shown in Figure 1D, point A, w, and h. The coordinate system type of the vertex is the same as the coordinate system type indicated in the WDI report configuration.

[0390] If the peak region type is circular, then the peak region can be represented by the coordinates of the center and the radius of the circle. For example, point C1 and radius r1 in Figure 1D. The coordinate system type of the center is the same as the coordinate system type indicated in the WDI report configuration.

[0391] If the peak region is elliptical, then the peak region can be represented by the coordinates of the ellipse's center, its major radius, its minor radius, and its rotation angle. For example, in Figure 1D, point C2 and its major radius r... a short radius r b The rotation angle θ. Here, the rotation angle is the angle between the major (or minor) axis of the ellipse and the horizontal (or vertical) direction of the wavenumber domain, θ∈[0, π). Optionally, if the rotation angle is equal to its default value (e.g., θ = 0), no feedback is required. The coordinate system type of the ellipse center is the same as the coordinate system type indicated in the WDI report configuration.

[0392] In some embodiments, WDI reporting can be performed via at least one of PUCCH or PUSCH.

[0393] This disclosure proposes a method for reporting wavenumber domain information for near-field channels, which enables the transmitting end (such as gNB) to obtain accurate channel state information (CSI), thereby improving link capacity.

[0394] The information reporting method involved in the embodiments of this disclosure may include at least one of steps S6101 to S6102. For example, step S6101 may be implemented as a separate embodiment, and step S6102 may be implemented as a separate embodiment, but is not limited thereto.

[0395] In some embodiments, step S6101 is optional and may be omitted or replaced in different embodiments.

[0396] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0397] This disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0398] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0399] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0400] Figure 7A is a schematic diagram of the terminal structure proposed in an embodiment of this disclosure. As shown in Figure 7A, the terminal 7100 may include at least one of a transceiver module 7101, a processing module 7102, etc. In some embodiments, the transceiver module 7101 is used to send first information to a network device, wherein the first information is used to indicate N regions of a first channel in the wavenumber domain, the wavenumber domain power distribution value corresponding to at least one coordinate in each region is the peak value in the wavenumber domain power distribution of the first channel, the first channel is the channel from the network device to the terminal, and N is a positive integer. Optionally, the transceiver module 7101 is used to perform at least one of the communication steps (e.g., step S2102, but not limited thereto) performed by the terminal in any of the above methods, which will not be described in detail here. Optionally, the processing module 7102 is used to perform at least one of the other steps performed by the terminal in any of the above methods, which will not be described in detail here.

[0401] Figure 7B is a schematic diagram of the structure of a network device proposed in an embodiment of this disclosure. As shown in Figure 7B, the network device 7200 may include at least one of a transceiver module 7201, a processing module 7202, etc. In some embodiments, the transceiver module 7201 is used to receive first information sent by a terminal, wherein the first information is used to indicate N regions of a first channel in the wavenumber domain, the wavenumber domain power distribution value corresponding to at least one coordinate in each region is the peak value in the wavenumber domain power distribution of the first channel, the first channel is the channel from the network device to the terminal, and N is a positive integer. Optionally, the transceiver module 7201 is used to perform at least one of the communication steps (e.g., step S2101, but not limited thereto) performed by the network device in any of the above methods, which will not be described in detail here. Optionally, the processing module 7202 is used to perform at least one of the other steps performed by the network device in any of the above methods, which will not be described in detail here.

[0402] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0403] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module. Optionally, the processing module may be interchangeable with a processor.

[0404] Figure 8A is a schematic diagram of the structure of the communication device 8100 proposed in an embodiment of this disclosure. The communication device 8100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 8100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0405] As shown in Figure 8A, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. The communication device 8100 is used to execute any of the above methods.

[0406] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 may also be located outside the communication device 8100.

[0407] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceivers 8103 perform at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2102, but not limited thereto), and the processor 8101 performs at least one of the other steps.

[0408] In some embodiments, a transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.

[0409] In some embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuit 8104 is connected to the memory 8102, and the interface circuit 8104 can be used to receive signals from the memory 8102 or other devices, and can be used to send signals to the memory 8102 or other devices. For example, the interface circuit 8104 can read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0410] The communication device 8100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 8100 described in this disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG8A. The communication device may be a standalone device or may be part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0411] Figure 8B is a schematic diagram of the structure of chip 8200 according to an embodiment of this disclosure. For cases where the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of chip 8200 shown in Figure 8B, but it is not limited thereto.

[0412] Chip 8200 includes one or more processors 8201, which are used to perform any of the above methods.

[0413] In some embodiments, chip 8200 further includes one or more interface circuits 8202. Optionally, the interface circuit 8202 is connected to memory 8203, and the interface circuit 8202 can be used to receive signals from memory 8203 or other devices, and the interface circuit 8202 can be used to send signals to memory 8203 or other devices. For example, the interface circuit 8202 can read instructions stored in memory 8203 and send the instructions to processor 8201.

[0414] In some embodiments, the interface circuit 8202 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2102, but not limited thereto), and the processor 8201 performs at least one of the other steps.

[0415] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.

[0416] In some embodiments, chip 8200 further includes one or more memories 8203 for storing instructions. Optionally, all or part of the memories 8203 may be located outside of chip 8200.

[0417] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device 8100, cause the communication device 8100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0418] This disclosure also provides a program product that, when executed by the communication device 8100, causes the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0419] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. An information reporting method, characterized in that, The method, executed by a terminal, includes: Send first information to the network device, wherein the first information is used to indicate N regions of the first channel in the wavenumber domain, the wavenumber domain power distribution value corresponding to at least one coordinate in each region is the peak value in the wavenumber domain power distribution of the first channel, the first channel is the channel from the network device to the terminal, and N is a positive integer.

2. The method according to claim 1, characterized in that, The first information is used to indicate at least one of the following: The coordinates of a pair of diagonal vertices of the first region in the N regions, wherein the region type of the first region is rectangular; The coordinates of a vertex of the first region in the N regions, the width of the rectangle, and the height of the rectangle; The center coordinates and radius of the second region among the N regions, wherein the region type of the second region is circular; The coordinates of the ellipse center, the major radius, the minor radius, and the rotation angle of the ellipse of the third region among the N regions, and the region type of the third region is ellipse.

3. The method according to claim 2, characterized in that, The rotation angle of the ellipse is one of the following: The angle between the major axis of the ellipse and the horizontal direction of the wavenumber domain; The angle between the major axis of the ellipse and the direction perpendicular to the wavenumber domain; The angle between the minor axis of the ellipse and the horizontal direction of the wavenumber domain; The angle between the minor axis of the ellipse and the direction perpendicular to the wavenumber domain.

4. The method according to any one of claims 1-3, characterized in that, The first information is contained in the Channel State Information (CSI).

5. The method according to any one of claims 1-4, characterized in that, The peak value can be a local peak value or a global peak value.

6. The method according to any one of claims 1-5, characterized in that, The method further includes: Receive second information sent by the network device, the second information being used to indicate at least one of the following: A threshold is set whereby the wavenumber domain power distribution value corresponding to at least one coordinate within each region is not less than the threshold. The N; M, where M is a positive integer, and N is not greater than M; Coordinate system type; The region types of the N regions.

7. The method according to claim 6, characterized in that, The coordinate system type is one of the following: Cartesian coordinate system; Polar coordinate system.

8. An information reporting method, characterized in that, Performed by a network device, the method includes: The receiving terminal sends first information, wherein the first information is used to indicate N regions of the first channel in the wavenumber domain, and the wavenumber domain power distribution value corresponding to at least one coordinate in each region is the peak value in the wavenumber domain power distribution of the first channel, the first channel is the channel from the network device to the terminal, and N is a positive integer.

9. The method according to claim 8, characterized in that, The first information is used to indicate at least one of the following: The coordinates of a pair of diagonal vertices of the first region in the N regions, wherein the region type of the first region is rectangular; The coordinates of a vertex of the first region in the N regions, the width of the rectangle, and the height of the rectangle; The center coordinates and radius of the second region among the N regions, wherein the region type of the second region is circular; The coordinates of the ellipse center, the major radius, the minor radius, and the rotation angle of the ellipse of the third region among the N regions, and the region type of the third region is ellipse.

10. The method according to claim 9, characterized in that, The rotation angle of the ellipse is one of the following: The angle between the major axis of the ellipse and the horizontal direction of the wavenumber domain; The angle between the major axis of the ellipse and the direction perpendicular to the wavenumber domain; The angle between the minor axis of the ellipse and the horizontal direction of the wavenumber domain; The angle between the minor axis of the ellipse and the direction perpendicular to the wavenumber domain.

11. The method according to any one of claims 8-10, characterized in that, The first information is contained in the CSI.

12. The method according to any one of claims 8-11, characterized in that, The peak value can be a local peak value or a global peak value.

13. The method according to any one of claims 8-12, characterized in that, The method further includes: Send a second message to the terminal, the second message indicating at least one of the following: A threshold is set whereby the wavenumber domain power distribution value corresponding to at least one coordinate within each region is not less than the threshold. The N; M, where M is a positive integer, and N is not greater than M; Coordinate system type; The region types of the N regions.

14. The method according to claim 13, characterized in that, The coordinate system type is one of the following: Cartesian coordinate system; Polar coordinate system.

15. A terminal, characterized in that, include: The transceiver module is configured to send first information to a network device, wherein the first information is used to indicate N regions of a first channel in the wavenumber domain, the wavenumber domain power distribution value corresponding to at least one coordinate in each region is the peak value in the wavenumber domain power distribution of the first channel, the first channel is the channel from the network device to the terminal, and N is a positive integer.

16. A network device, characterized in that, include: The transceiver module is configured to receive first information sent by the terminal, wherein the first information is used to indicate N regions of the first channel in the wavenumber domain, and the wavenumber domain power distribution value corresponding to at least one coordinate in each region is the peak value in the wavenumber domain power distribution of the first channel, the first channel is the channel from the network device to the terminal, and N is a positive integer.

17. A communication device, characterized in that, include: One or more processors; The communication device is used to perform the method according to any one of claims 1-14.

18. A storage medium storing instructions, characterized in that, When the instructions are executed on the communication device, the communication device performs the method as described in any one of claims 1-14.

19. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the communication device, it implements the method as described in any one of claims 1-14.

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