Information reporting method, and terminal, network device and communication system

Abstract

The present disclosure relates to an information reporting method, and a terminal, a network device and a communication system. The information reporting method comprises: a terminal determining first quantized coordinates in a wavenumber domain on the basis of a first wavenumber domain power distribution of a first channel; and sending first information to a network device, wherein the first information is used for indicating the first quantized coordinates, and the coordinate system type of the first quantized coordinates is a polar coordinate system. The embodiments of the present disclosure enable the network device to acquire channel state information, thereby improving the link capacity. Moreover, the coordinates indicated by the first information are quantized coordinates, and by means of quantizing the coordinates, feedback overheads for feeding the first information back to the network device can be reduced.

Description

Information reporting methods, terminals, network equipment, and communication systems Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to information reporting methods, terminals, network devices and communication systems. 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, a network device, and a communication system.

[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] The first quantization coordinates in the wavenumber domain are determined based on the first wavenumber domain power distribution of the first channel.

[0007] Send first information to the network device, wherein the first information is used to indicate the first quantized coordinates, and the coordinate system type of the first quantized coordinates is polar coordinates.

[0008] 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:

[0009] The receiving terminal sends first information, wherein the first information is used to indicate a first quantization coordinate in the wavenumber domain, the first quantization coordinate is determined according to the first wavenumber domain power distribution of the first channel, and the coordinate system type of the first quantization coordinate is a polar coordinate system.

[0010] According to a third aspect of the embodiments of this disclosure, a terminal is provided, comprising:

[0011] The processing module is configured to determine the first quantization coordinates in the wavenumber domain based on the first wavenumber domain power distribution of the first channel;

[0012] The transceiver module is configured to send first information to a network device, wherein the first information is used to indicate the first quantized coordinates, and the coordinate system type of the first quantized coordinates is a polar coordinate system.

[0013] According to a fourth aspect of the embodiments of this disclosure, a network device is provided, comprising:

[0014] The transceiver module is configured to receive first information sent by the terminal, wherein the first information is used to indicate a first quantization coordinate in the wavenumber domain, the first quantization coordinate is determined according to the first wavenumber domain power distribution of the first channel, and the coordinate system type of the first quantization coordinate is a polar coordinate system.

[0015] According to a fifth aspect of the embodiments of this disclosure, a communication system is provided, comprising:

[0016] The terminal is configured to implement the method proposed in the first aspect; and,

[0017] The network device is configured to implement the method proposed in the second aspect.

[0018] According to a sixth aspect of the present disclosure, a communication device is provided, comprising:

[0019] One or more processors;

[0020] The communication device is used to execute the method proposed in the first or second aspect.

[0021] 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.

[0022] 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.

[0023] The embodiments disclosed herein enable network devices to obtain channel state information, thereby improving link capacity. Furthermore, the coordinates indicated by the first information are quantized coordinates; quantizing the coordinates reduces the overhead of feeding back the first information to the network device. Attached Figure Description

[0024] 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.

[0025] Figure 1A is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

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

[0028] Figure 1D is an exemplary schematic diagram of a quantization region based on a Cartesian coordinate system provided according to an embodiment of the present disclosure.

[0029] Figure 1E is an exemplary schematic diagram of a quantization range based on a Cartesian coordinate system provided according to an embodiment of the present disclosure.

[0030] Figure 1F is an exemplary schematic diagram of a quantization region based on a polar coordinate system provided according to an embodiment of the present disclosure.

[0031] Figure 2A is an exemplary interactive schematic diagram of an information reporting method provided according to an embodiment of the present disclosure.

[0032] Figure 2B is an exemplary interactive schematic diagram of an information reporting method provided according to an embodiment of the present disclosure.

[0033] Figure 2C is an exemplary interactive schematic diagram of an information reporting method provided according to an embodiment of the present disclosure.

[0034] Figure 3 is an exemplary interactive schematic diagram of an information reporting method provided according to an embodiment of the present disclosure.

[0035] Figure 4 is an exemplary interactive schematic diagram of a wavenumber domain information quantization method provided according to an embodiment of the present disclosure.

[0036] Figure 5A is an exemplary schematic diagram of the structure of a terminal provided according to an embodiment of the present disclosure.

[0037] Figure 5B is an exemplary schematic diagram of the structure of a network device provided according to an embodiment of the present disclosure.

[0038] Figure 6A is an exemplary schematic diagram of the structure of a communication device provided according to an embodiment of the present disclosure.

[0039] Figure 6B is an exemplary schematic diagram of the structure of a chip provided according to an embodiment of the present disclosure. Detailed Implementation

[0040] This disclosure presents an information reporting method, a terminal, a network device, and a communication system.

[0041] In a first aspect, embodiments of this disclosure propose an information reporting method, executed by a terminal, the method comprising:

[0042] The first quantization coordinates in the wavenumber domain are determined based on the first wavenumber domain power distribution of the first channel.

[0043] Send first information to the network device, wherein the first information is used to indicate the first quantized coordinates, and the coordinate system type of the first quantized coordinates is polar coordinates.

[0044] In the above embodiments, the terminal reports first information to the network device. This first information is essentially a type of channel state information, thus enabling the network device to acquire 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. Furthermore, the coordinates indicated by the first information are quantized coordinates; quantizing the coordinates saves the feedback overhead of sending the first information back to the network device. Moreover, compared to quantization methods based on Cartesian coordinates, quantization methods based on polar coordinates can further reduce feedback overhead.

[0045] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first quantization coordinates in the wavenumber domain based on the first wavenumber domain power distribution of the first channel includes:

[0046] The first coordinates are determined based on the first wavenumber domain power distribution of the first channel;

[0047] The first quantization coordinate is determined based on the first coordinate, and the first quantization coordinate is the quantization coordinate corresponding to the first coordinate.

[0048] In the above embodiment, the first coordinate can be determined first based on the first wavenumber domain power distribution of the first channel. The first coordinate is the coordinate before quantization. Then, the first coordinate is quantized to obtain the quantized coordinate corresponding to the first coordinate, which is the first quantized coordinate.

[0049] In conjunction with some embodiments of the first aspect, in some embodiments, the first coordinate is one of the following:

[0050] The coordinates corresponding to the peak value in the first wavenumber domain power distribution;

[0051] The coordinates corresponding to the wavenumber domain power distribution values ​​in the first wavenumber domain power distribution that are greater than the first threshold;

[0052] Used to determine the coordinates of the peak region in the first wavenumber domain power distribution.

[0053] In the above embodiments, the first coordinate can be the peak coordinate in the first wavenumber domain power distribution of the first channel, or the coordinate with a larger corresponding wavenumber domain power distribution value, or the coordinate used to determine the peak region.

[0054] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first quantization coordinates in the wavenumber domain based on the first wavenumber domain power distribution of the first channel includes:

[0055] The second wavenumber domain power distribution of the first channel is determined based on the first wavenumber domain power distribution of the first channel. The second wavenumber domain power distribution includes a first value corresponding to a plurality of quantization coordinates. Each quantization coordinate corresponds to a quantization region. The first value corresponding to each quantization coordinate is the integral value of the first wavenumber domain power distribution within the quantization region corresponding to the quantization coordinate, or the product of the integral value and the first coefficient.

[0056] The first quantization coordinates are determined based on the second wavenumber domain power distribution of the first channel.

[0057] In the above embodiment, the second wavenumber domain power distribution of the first channel is first determined based on the first wavenumber domain power distribution of the first channel. Since the second wavenumber domain power distribution is the power distribution obtained after quantizing the first wavenumber domain power distribution, the coordinates in the first wavenumber domain power distribution have been quantized into quantized coordinates in the second wavenumber domain power distribution. Therefore, the first quantized coordinates can be determined based on the second wavenumber domain power distribution of the first channel.

[0058] In conjunction with some embodiments of the first aspect, in some embodiments, the first quantization coordinate includes at least one of the following:

[0059] Quantization coordinates corresponding to the peak values ​​in the second wavenumber domain power distribution;

[0060] The quantization coordinates corresponding to the first value in the second wavenumber domain power distribution that is greater than the second threshold;

[0061] Quantization coordinates used to determine the peak region in the second wavenumber domain power distribution.

[0062] In the above embodiments, the first quantization coordinate can be the quantization coordinate corresponding to the peak value in the second wavenumber domain power distribution, or the quantization coordinate with a larger first value, or the quantization coordinate used to determine the peak region.

[0063] In conjunction with some embodiments of the first aspect, in some embodiments, when the extreme radius quantization type is uniform quantization, the extreme radius quantization value in the first quantization coordinate is represented as k0(δ). r +n r Δ r ), λ is the wave number, λ is the wavelength, and δ is the wavelength. r n is the initial offset value for radius quantization. r n is the index of the extreme radius quantization value. r The value of Δ is a non-negative integer. r The polar radius is a uniform quantization interval; or, when the polar radius quantization type is uniform quantization, the polar radius quantization value in the first quantization coordinate is represented as... n r The value ranges from 0 to N. r Integers in -1, N r This represents the number of radius quantization intervals; or, in the case of non-uniform radius quantization, the radius quantization value in the first quantization coordinate is represented as... n r The value ranges from 0 to N. r Integers in -1.

[0064] In the above embodiments, a method for implementing the polar radius quantization value in the first quantization coordinate is provided in the quantization method based on the polar coordinate system.

[0065] In conjunction with some embodiments of the first aspect, in some embodiments, the polar angle quantization value in the first quantization coordinate is represented as δ θ n is the initial offset value for polar angle quantization. θ n is the index of the polar angle quantization value. θ The value ranges from 0 to N. θ Integers in -1, N θ The number of polar angle quantization intervals; or, the polar angle quantization value in the first quantization coordinate is represented as δ. θ +n θ Δ θ n θ The value of Δ is a non-negative integer. θ This is the polar angle quantization interval.

[0066] In the above embodiments, a method for implementing the polar angle quantization value in the first quantization coordinate is provided in the quantization method based on the polar coordinate system.

[0067] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: receiving configuration information sent by a network device, the configuration information being used to configure at least one of the following:

[0068] Extreme radius quantization type;

[0069] Uniform quantization interval Δ of the polar diameter r ;

[0070] Number of polarity quantization intervals N r ;

[0071] Initial offset value δ for radius quantization r ;

[0072] Polar quantization interval Δ θ ;

[0073] Number of polar angle quantization intervals N θ ;

[0074] Polar quantization initial offset value δ θ .

[0075] In the above embodiments, the configuration information is used for quantization-related configurations, such as configuring parameters for radial quantization (e.g., at least one of radial quantization type, radial uniform quantization interval, number of radial quantization intervals, and radial quantization initial offset value) and / or parameters for polar angle quantization (e.g., at least one of polar angle quantization interval, number of polar angle quantization intervals, and polar angle quantization initial offset value). In some implementations, at least one of the above parameters can be a default value. In some implementations, the radial quantization initial offset value and / or the polar angle quantization initial offset value can be omitted.

[0076] Secondly, embodiments of this disclosure provide an information reporting method, executed by a network device, the method comprising:

[0077] The receiving terminal sends first information, wherein the first information is used to indicate a first quantization coordinate in the wavenumber domain, the first quantization coordinate is determined according to the first wavenumber domain power distribution of the first channel, and the coordinate system type of the first quantization coordinate is a polar coordinate system.

[0078] In conjunction with some embodiments of the second aspect, in some embodiments, when the extreme radius quantization type is uniform quantization, the extreme radius quantization value in the first quantization coordinate is represented as k0(δ). r +n r Δ r ), λ is the wave number, λ is the wavelength, and δ is the wavelength. r n is the initial offset value for radius quantization. r n is the index of the extreme radius quantization value. r The value of Δ is a non-negative integer. r The polar radius is a uniform quantization interval; or, when the polar radius quantization type is uniform quantization, the polar radius quantization value in the first quantization coordinate is represented as... n r The value ranges from 0 to N. r Integers in -1, N r This represents the number of radius quantization intervals; or, in the case of non-uniform radius quantization, the radius quantization value in the first quantization coordinate is represented as... n r The value ranges from 0 to N. r Integers in -1.

[0079] In conjunction with some embodiments of the second aspect, in some embodiments, the polar angle quantization value in the first quantization coordinate is represented as δ θ n is the initial offset value for polar angle quantization. θn is the index of the polar angle quantization value. θ The value ranges from 0 to N. θ Integers in -1, N θ The number of polar angle quantization intervals; or, the polar angle quantization value in the first quantization coordinate is represented as δ. θ +n θ Δ θ n θ The value of Δ is a non-negative integer. θ This is the polar angle quantization interval.

[0080] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: sending configuration information to the terminal, the configuration information being used to configure at least one of the following:

[0081] Extreme radius quantization type;

[0082] Uniform quantization interval Δ of the polar diameter r ;

[0083] Number of polarity quantization intervals N r ;

[0084] Initial offset value δ for radius quantization r ;

[0085] Polar quantization interval Δ θ ;

[0086] Number of polar angle quantization intervals N θ ;

[0087] Polar quantization initial offset value δ θ .

[0088] Thirdly, embodiments of this disclosure provide a terminal, including:

[0089] The processing module is configured to determine the first quantization coordinates in the wavenumber domain based on the first wavenumber domain power distribution of the first channel;

[0090] The transceiver module is configured to send first information to a network device, wherein the first information is used to indicate the first quantized coordinates, and the coordinate system type of the first quantized coordinates is a polar coordinate system.

[0091] Fourthly, embodiments of this disclosure provide a network device, including:

[0092] The transceiver module is configured to receive first information sent by the terminal, wherein the first information is used to indicate a first quantization coordinate in the wavenumber domain, the first quantization coordinate is determined according to the first wavenumber domain power distribution of the first channel, and the coordinate system type of the first quantization coordinate is a polar coordinate system.

[0093] Fifthly, embodiments of this disclosure provide a communication system, including:

[0094] The terminal is configured to implement the method described in the optional implementation of the first aspect; and,

[0095] The network device is configured to implement the method described in the optional implementation of the second aspect.

[0096] Sixthly, embodiments of this disclosure provide a communication device, including:

[0097] One or more processors;

[0098] The communication device is used to execute the method described in the optional implementation of the first or second aspect.

[0099] 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.

[0100] 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.

[0101] 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.

[0102] 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.

[0103] 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.

[0104] This disclosure provides an information reporting method, a terminal, a network device, and a communication system. In some embodiments, the terms "information reporting method" and "information processing method," "communication method," etc., can be used interchangeably.

[0105] 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. In all embodiments of this disclosure, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the embodiments are consistent and can be mutually referenced. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0106] 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.

[0107] 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.

[0108] In the embodiments disclosed herein, "multiple" refers to two or more.

[0109] In some embodiments, the terms "at least one of A or B, at least one of A and B", "one or more", "a plurality of", "multiple" and the like can be used interchangeably.

[0110] 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 whether there is a branch B); in some embodiments, B (execute B regardless of whether there is a branch A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0111] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execute A regardless of whether a branch B exists); in some embodiments, B (execute B regardless of whether a branch A exists); 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, and C.

[0112] 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.

[0113] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0114] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0115] In some embodiments, terms such as “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably. These descriptions all refer to the device making a corresponding action under certain objective circumstances. They do not necessarily limit the time, nor do they require the device to make a judgment action when implementing it, nor do they mean that there must be other limitations.

[0116] 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”.

[0117] In some embodiments, devices, etc., may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as “device,” “equipment,” “circuit,” “network element,” “network function,” “network device,” “function,” “node,” “unit,” “section,” “system,” “network,” “chip,” “chip system,” “entity,” and “subject” are interchangeable.

[0118] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0119] In some embodiments, the terms "access network device (AN device)," "radio access network device (RAN device)," "base station (BS)," "radio base station," "fixed station," "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," and "bandwidth part (BWP)" can be used interchangeably.

[0120] In some embodiments, the terms "terminal", "terminal device", "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", and "client" can be used interchangeably.

[0121] In some embodiments, access network devices, core network devices, or network devices can be replaced by terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced by communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, and uplink link, downlink, etc., can be replaced with sidelink link.

[0122] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0123] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0124] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0125] 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.

[0126] 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.

[0127] 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.

[0128] 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.

[0129] 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).

[0130] 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.

[0131] 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.

[0132] 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.

[0133] 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.

[0134] 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).

[0135] 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.

[0136] 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.

[0137] 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 in academia but also in industry. 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 efficiency and reliability) will be significantly reduced. Therefore, CSI acquisition is a hot research topic in MIMO technology.

[0138] 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.

[0139] 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:

[0140] in,

[0141] The wavenumber vector corresponding to the source or transmitter.

[0142] This is the wavenumber vector corresponding to the receiving end.

[0143] H(k x ,k y,k x ,k y () represents the wavenumber domain response of the channel;

[0144] This refers to the source response or the wavenumber domain response of the transmitting array.

[0145] This refers to the receive response or the wavenumber domain response of the receiver array.

[0146] Let λ be the wave number and λ be the wavelength.

[0147] 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.

[0148] 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.

[0149] In some embodiments, the terminal needs to report wavenumber-domain information (WDI) to the network device (such as gNB).

[0150] In some embodiments, WDI is used to indicate the coordinates corresponding to one or more peaks (or focal points) in the wavenumber domain power distribution of the first channel. That is, each coordinate indicated by WDI corresponds to a wavenumber domain power distribution value in the wavenumber domain power distribution as a peak (or focal point) in the wavenumber domain power distribution.

[0151] The first channel refers to the 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. The wavenumber domain power distribution of the first channel refers to the power distribution of the first channel in the wavenumber domain. This distribution includes the wavenumber domain power distribution values ​​corresponding to different coordinates (e.g., two-dimensional coordinates in a two-dimensional coordinate system) of the first channel in the wavenumber domain. Taking a two-dimensional coordinate system as an example, Figure 1B shows an exemplary schematic diagram of the wavenumber domain power distribution of the first channel. As shown in Figure 1B, the wavenumber domain power distribution of the first channel can be located at a radius equal to the wavenumber... Inside the circle, k hk represents the horizontal direction in the wavenumber domain. h This represents the vertical direction in the wavenumber domain. 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.

[0152] The wavenumber domain coordinate system can be a two-dimensional coordinate system. For example, if the transmitting antenna array of a network device is a two-dimensional array, the wavenumber domain coordinate system is a two-dimensional coordinate system. For a two-dimensional coordinate system, the coordinate system type can be a Cartesian coordinate system or a polar coordinate system.

[0153] In a two-dimensional Cartesian coordinate system, a coordinate in the wavenumber domain can be represented by its values ​​in the horizontal and vertical directions of the wavenumber domain. In a two-dimensional polar coordinate system, a coordinate in the wavenumber domain can be represented by its polar radius and polar angle.

[0154] A coordinate of the 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. Unless otherwise specified, the coordinates in the embodiments of this disclosure refer to coordinates in the wavenumber domain.

[0155] 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. This wavenumber domain power distribution is the first wavenumber domain power distribution described below.

[0156] In some embodiments, WDI is used to indicate one or more peak regions (or focal regions) in the wavenumber domain power distribution of a first channel. Each peak region is a continuous coordinate region within the wavenumber domain, and a peak region corresponds to at least one peak (or focal point) in the wavenumber domain power distribution. That is, at least one coordinate within a peak region corresponds to a wavenumber domain power distribution value that is a peak value in the wavenumber domain power distribution. For example, a peak region is a continuous coordinate region formed by the coordinates of one (or more) peaks in the wavenumber domain power distribution and their surrounding coordinate points. The region type of a peak region can be rectangular, circular, elliptical, etc., that is, a peak region can be a rectangular region, a circular region, or an elliptical region, etc.

[0157] Figure 1C shows an exemplary schematic diagram of the wavenumber domain power distribution of the first channel. Referring to Figure 1C, WDI can indicate three peak regions, with region types of rectangle, circle, and ellipse, respectively. Referring to Figure 1C, if a peak region is rectangular, the WDI indicates the coordinates of a pair of opposite vertices (e.g., the coordinates of points A and B), or the coordinates of a single vertex (e.g., the coordinates of point A), the rectangle width w, and the rectangle height h, but is not limited to these. If a peak region is circular, the WDI indicates the coordinates of the center of the circle (e.g., the coordinates of point C1) and the radius r1, but is not limited to these. If a peak region is elliptical, the WDI indicates the coordinates of the ellipse center (e.g., the coordinates of point C2) and the ellipse's major radius r1. a ellipse minor radius r b And the ellipse rotation angle θ, but not limited to this, wherein the ellipse rotation angle can be the angle between the major axis of the ellipse and the horizontal direction of the wavenumber domain, or the angle between the major axis of the ellipse and the vertical direction of the wavenumber domain, or the angle between the minor axis of the ellipse and the horizontal direction of the wavenumber domain, or the angle between the minor axis of the ellipse and the vertical direction of the wavenumber domain.

[0158] 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).

[0159] According to the above scheme, WDI can indicate peak coordinates and / or peak regions in the wavenumber domain power distribution. Regardless of whether WDI indicates peak coordinates or peak regions, it needs to indicate relevant coordinates (such as peak coordinates, rectangle vertex coordinates, circle center coordinates, ellipse center coordinates, etc.). Quantization is required before the terminal feeds back WDI to the network device. Quantization refers to the operation of converting continuous (or discrete) values ​​(such as coordinates) into a finite number of discrete values ​​(such as coordinates). In this embodiment, coordinate quantization is required.

[0160] Quantization of coordinates can be understood as follows: Assuming there are M quantization regions in the wavenumber domain, each region corresponds to a quantized coordinate. For a coordinate to be quantized, determining which quantization region it falls within allows us to approximate the coordinate as the quantized coordinate corresponding to that region. After quantization, WDI indicates the quantized coordinate. In a two-dimensional Cartesian coordinate system, a quantized coordinate can be represented by the quantized values ​​in the horizontal and vertical directions of the wavenumber domain.

[0161] Optionally, a quantization region is a cell used for quantization. For a two-dimensional Cartesian coordinate system, each quantization region is a two-dimensional cell, which can be represented as a coordinate grid with a certain width and height, as shown in Figure 1D. Each quantization region has a width of Δ... h Height is Δ v The squares, where Δ h Also known as the horizontal quantization interval, Δ v Also known as the vertical quantization interval. In a two-dimensional polar coordinate system, each quantization region is a two-dimensional cell, and the two-dimensional cell is a sector or sector ring.

[0162] As shown in Figure 1E, the quantization range of the quantization method based on the Cartesian coordinate system is the circumscribed rectangle of the circle (or larger than the circumscribed rectangle). It can be seen that the quantization range not only includes the area inside the circle, but also the four corner areas outside the circle and inside the circumscribed rectangle (see shaded area), which introduces quantization feedback overhead.

[0163] Therefore, this disclosure proposes quantization based on a polar coordinate system. In a polar coordinate system, a quantization coordinate can be represented by a polar radius quantization value and a polar angle quantization value. In a polar coordinate system, a quantization region can be represented as a sector or a sector ring, as shown in Figure 1F, k r k is the polar radius quantization value. θ This is the polar angle quantization value.

[0164] Quantizing coordinates in the wavenumber domain can save on WDI feedback overhead.

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

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

[0167] In some embodiments, the network device sends configuration information. For example, the network device sends configuration information to a terminal, but is not limited to this; the network device may also send configuration information to other entities. In some embodiments, the terminal receives configuration information. For example, the terminal receives configuration information sent by the network device, but is not limited to this; the terminal may also receive configuration information sent by other entities.

[0168] The above configuration information is used for quantization configuration. This configuration information is used by the terminal to quantize coordinates in the wavenumber domain. In some embodiments, the name of the above configuration information is not limited; it may be, for example, "quantization configuration," "WDI quantization configuration," etc.

[0169] In some embodiments, the terminal obtains configuration information. This configuration information is used to configure at least one of the following:

[0170] Extreme radius quantization type;

[0171] Uniform quantization interval Δ of the polar diameter r ,

[0172] Number of polarity quantization intervals N r , It is the set of positive integers;

[0173] Initial offset value δ for radius quantization r δ r ≥0;

[0174] Polar quantization interval Δ θ Δ θ >0;

[0175] Number of polar angle quantization intervals N θ ,

[0176] Polar quantization initial offset value δ θ δ θ ≥0.

[0177] The configuration information is used for quantization-related configurations, such as configuring parameters for radial quantization (e.g., radial quantization type, radial uniform quantization interval, number of radial quantization intervals, and radial quantization initial offset value) and / or parameters for polar angle quantization (e.g., polar angle quantization interval, number of polar angle quantization intervals, and polar angle quantization initial offset value). The configuration information is used by the terminal to quantize coordinates in the wavenumber domain.

[0178] Optionally, the extreme quantization type can be configured in this configuration information. The extreme quantization type can include uniform quantization and non-uniform quantization. For example, the extreme quantization type can be configured as uniform quantization in this configuration information. Alternatively, the extreme quantization type can be configured as non-uniform quantization. If the extreme quantization type is configured as uniform quantization, the quantization interval of the extreme quantization is uniform. If the extreme quantization type is configured as non-uniform quantization, the quantization interval of the extreme quantization is non-uniform. Optionally, the extreme quantization type can be omitted in this configuration information. If the extreme quantization type is not explicitly configured, a default value can be used, for example, the default value can be uniform quantization, or the default value can be non-uniform quantization. Optionally, the extreme quantization type can be omitted.

[0179] In some embodiments, uniform quantization is used for the polar radius. If uniform quantization is used for the polar radius, the quantization interval of the polar radius is a uniform quantization interval, which can be configured in the configuration information. For example, the configuration information can specify the polar radius quantization type as uniform quantization and the polar radius uniform quantization interval. Based on the configuration of the polar radius uniform quantization interval in the configuration information, the terminal can determine that uniform quantization is used for the polar radius. Optionally, based on the configuration of the polar radius uniform quantization interval in the configuration information, the polar radius quantization type can be omitted. If uniform quantization is used for the polar radius, the number of polar radius quantization intervals can be configured in the configuration information. For example, the configuration information can specify the polar radius quantization type as uniform quantization and the number of polar radius quantization intervals.

[0180] Optionally, the uniform quantization interval of the polar radius can be normalized to the wavenumber, for example, Δ. r ∈(0,1).

[0181] In some embodiments, the polarimeter employs non-uniform quantization. If non-uniform quantization is used for the polarimeter, the quantization interval of the polarimeter is non-uniform, and the number of polarimeter quantization intervals can be configured in the configuration information. For example, the configuration information can be configured to set the polarimeter quantization type to non-uniform quantization and to configure the number of polarimeter quantization intervals.

[0182] According to the above embodiments, if uniform quantization is used for the polar radius, the configuration information can configure the polar radius quantization interval and / or the number of polar radius quantization intervals. The quantization range of the polar radius is [0, k0] (not normalized to wavenumber) or [0, 1] (normalized to wavenumber), so the quantization value of each polar radius within the quantization range of the polar radius can be determined according to the polar radius quantization interval and / or the polar radius quantization interval.

[0183] If non-uniform quantization is used for the polar radius, this configuration information can configure the number of polar radius quantization intervals. Optionally, non-uniform quantization satisfies the following condition: all quantized regions have equal areas. As shown in Figure 1F, each sector and sector ring has the same area. In some embodiments, when the above condition is met, the quantization value of each polar radius within the quantization range of the polar radius can be determined based on the number of polar radius quantization intervals.

[0184] In some embodiments, uniform quantization is used for the polar angle. If uniform quantization is used for the polar angle, the quantization interval of the polar angle is uniform; the quantization interval of the polar angle is called the uniform quantization interval, and the number of polar angle quantization intervals can also be called the number of uniform quantization intervals. The polar angle uses uniform quantization, and the polar angle quantization interval or the number of polar angle quantization intervals can be configured in this configuration information. The quantization range of the polar angle is [0, 2π] or [-π, π], therefore, the quantization value of each polar angle within the quantization range can be determined based on the polar angle quantization interval or the number of polar angle quantization intervals.

[0185] In some embodiments, the polar angle may also be non-uniformly quantized.

[0186] Optionally, at least one of the above parameters can be a default value, a predefined value, or be determined by the terminal itself.

[0187] Optionally, the initial offset value for polar radius quantization can be omitted.

[0188] Optionally, the initial offset value for polar quantization can be omitted.

[0189] In some embodiments, the above configuration 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). Optionally, the terminal receives the configuration signaling.

[0190] In some embodiments, step S2101 is an optional step. For example, the parameters indicated by the configuration information can be default values, predefined, or determined by the terminal itself.

[0191] Step S2102: The terminal determines the first quantization coordinates based on the first wavenumber domain power distribution of the first channel.

[0192] The first channel refers to the 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. The wavenumber domain power distribution of the first channel refers to the power distribution of the first channel in the wavenumber domain. The wavenumber domain power distribution of the first channel includes the wavenumber domain power distribution values ​​corresponding to different coordinates (here, non-quantized coordinates) of the first channel in the wavenumber domain. Non-quantized coordinates refer to the coordinates before quantization. Optionally, the first wavenumber domain power distribution is obtained by the terminal through measuring a reference signal (such as CSI-RS) and performing channel estimation to obtain the spatial and wavenumber domain representations of the channel, and then calculating it based on the estimated channel. A related description of the first wavenumber domain power distribution can be found in the explanation above.

[0193] Optionally, the terminal may determine the first quantized coordinates using, but is not limited to, the following two methods:

[0194] Option 1:

[0195] First, the terminal determines the first coordinates based on the first wavenumber domain power distribution of the first channel. As mentioned above, the first wavenumber domain power distribution includes the wavenumber domain power distribution values ​​corresponding to different coordinates of the first channel in the wavenumber domain (the coordinates here are the coordinates before quantization), therefore the determined first coordinates are the coordinates before quantization.

[0196] Alternatively, the first coordinate can be one of the following:

[0197] The coordinates corresponding to the peak value in the first wave domain power distribution;

[0198] The coordinates corresponding to the wavenumber domain power distribution values ​​that are greater than the first threshold in the first wavenumber domain power distribution;

[0199] Used to determine the coordinates of the peak region in the first wavenumber domain power distribution.

[0200] The peak value in the first wavenumber domain power distribution refers to the peak value (local peak) in the first wavenumber domain power distribution if a wavenumber domain power distribution value is not less than the wavenumber domain power distribution value corresponding to the surrounding coordinate points, or the peak value (global peak) in the first wavenumber domain power distribution if a wavenumber domain power distribution value is not less than the wavenumber domain power distribution value corresponding to the coordinate points in the entire wavenumber domain.

[0201] In the first wavenumber domain power distribution, the peak region refers to a continuous coordinate region within the wavenumber domain. A peak region corresponds to at least one peak (local peak or global peak) in the first wavenumber domain power distribution. That is, at least one coordinate in a peak region corresponds to the wavenumber domain power distribution value in the first wavenumber domain power distribution, which is the peak value in the first wavenumber domain power distribution. For example, a peak region is a continuous coordinate region formed by one (or more) peak coordinates in the first wavenumber domain power distribution and their surrounding coordinate points.

[0202] The region type of a peak region can be rectangular, circular, elliptical, etc. The coordinates used to determine the peak region can be: coordinates for determining a rectangular peak region (e.g., coordinates of the rectangle's vertices), coordinates for determining a circular peak region (e.g., coordinates of the circle's center), coordinates for determining an elliptical peak region (e.g., coordinates of the ellipse's center), and so on. This disclosure does not limit the coordinates used to determine the peak region.

[0203] Therefore, the first coordinate can be the peak coordinate in the first wavenumber domain power distribution of the first channel, or the coordinate with a larger corresponding wavenumber domain power distribution value, or the coordinate used to determine the peak region, but is not limited to these.

[0204] Then, the terminal determines the first quantization coordinate based on the first coordinate. The first quantization coordinate is the quantization coordinate corresponding to the first coordinate. That is, the terminal quantizes the first coordinate to obtain the quantization coordinate corresponding to the first coordinate. For example, assuming there are M quantization regions in the wavenumber domain, and each quantization region corresponds to a quantization coordinate, then the quantization coordinate corresponding to the first coordinate is: the quantization coordinate corresponding to the quantization region where the first coordinate is located.

[0205] In the above embodiment, the first quantized coordinate is the quantized coordinate corresponding to the first coordinate (here, the first coordinate is the coordinate before quantization), and the first coordinate is the coordinate determined according to the first wavenumber domain power distribution of the first channel. The first coordinate is the coordinate before quantization.

[0206] In some embodiments, the terminal may determine multiple first coordinates based on the first wavenumber domain power distribution of the first channel. A first coordinate may be one of the three types of coordinates described above, and the multiple first coordinates may include at least one of the three types of coordinates described above. First information may indicate multiple first quantized coordinates, and a first quantized coordinate is the quantized coordinate corresponding to one of the first coordinates.

[0207] In Scheme 1, coordinates that are not specifically specified as quantized coordinates refer to coordinates before quantization.

[0208] Option 2:

[0209] First, the terminal determines the second wavenumber domain power distribution of the first channel. Optionally, the terminal determines the second wavenumber domain power distribution of the first channel based on the first wavenumber domain power distribution. The second wavenumber domain power distribution can be obtained by integrating the first wavenumber domain power distribution within each quantization region. Specifically, one quantization region corresponds to one quantization coordinate, and the second wavenumber domain power distribution contains first values ​​corresponding to multiple quantization coordinates. The first value corresponding to a quantization coordinate is obtained by integrating the first wavenumber domain power distribution within the quantization region corresponding to that quantization coordinate.

[0210] Optionally, the first value corresponding to a quantization coordinate is the integral value of the first wavenumber domain power distribution within the quantization region corresponding to that quantization coordinate. Optionally, the first value corresponding to a quantization coordinate is the product of the integral value of the first wavenumber domain power distribution within the quantization region corresponding to that quantization coordinate and a first coefficient. This first coefficient can be a constant coefficient and is non-zero. Optionally, the first coefficient is the same for all quantization coordinates (or quantization regions or integral values) within the wavenumber domain. Optionally, the first coefficient can be determined based on the size of the quantization region, that is, the first coefficient is related to the size of the quantization region; for example, the first coefficient can be the reciprocal of the area of ​​the quantization region. Of course, the first coefficient can also be independent of the size of the quantization region.

[0211] Since the second wavenumber domain power distribution is the power distribution obtained by quantizing the first wavenumber domain power distribution, the coordinates in the first wavenumber domain power distribution have been quantized into quantized coordinates in the second wavenumber domain power distribution. Therefore, the first quantized coordinates can be determined based on the second wavenumber domain power distribution of the first channel.

[0212] In some embodiments, the terminal may not obtain the first wavenumber domain power distribution of the first channel. Instead, the terminal measures a reference signal (such as CSI-RS) and performs channel estimation, and then calculates the second wavenumber domain power distribution of the first channel based on the estimated channel.

[0213] In some embodiments, the first wavenumber domain power distribution of the first channel may be normalized to the wavenumber or not. The second wavenumber domain power distribution of the first channel may be normalized to the wavenumber or not.

[0214] Then, the terminal determines the first quantization coordinates based on the second wavenumber domain power distribution of the first channel.

[0215] Optionally, the first quantization coordinate can be one of the following:

[0216] The quantization coordinates corresponding to the peak values ​​in the second wave power distribution;

[0217] The quantization coordinates corresponding to the first value greater than the second threshold in the second wave power distribution;

[0218] Quantization coordinates used to determine the peak region in the second wavenumber domain power distribution.

[0219] As described above, the second wavenumber domain power distribution includes the first values ​​corresponding to different quantization coordinates of the first channel in the wavenumber domain. The peak value in the second wavenumber domain power distribution refers to either a first value that is not less than the first values ​​corresponding to surrounding quantization coordinates, in which case that first value is the peak value (local peak) of the second wavenumber domain power distribution; or a first value that is not less than the first values ​​corresponding to quantization coordinates throughout the entire wavenumber domain, in which case that first value is the peak value (global peak) of the second wavenumber domain power distribution.

[0220] In the second wavenumber domain power distribution, the peak region refers to a continuous quantization coordinate region within the wavenumber domain. A peak region corresponds to at least one peak (local peak or global peak) in the second wavenumber domain power distribution. That is, the first value corresponding to at least one quantization coordinate in the second wavenumber domain power distribution is the peak value in the second wavenumber domain power distribution. For example, a peak region is a continuous quantization coordinate region formed by the quantization coordinates of one (or more) peaks in the second wavenumber domain power distribution and their surrounding quantization coordinates.

[0221] The region type of a peak region can be rectangular, circular, elliptical, etc. The quantization coordinates used to determine the peak region can be: quantization coordinates for determining a rectangular peak region (such as the quantization coordinates of the rectangle's vertices), or coordinates for determining a circular peak region (such as the quantization coordinates of the circle's center), or coordinates for determining an elliptical peak region (such as the quantization coordinates of the ellipse's center), and so on. This disclosure does not limit the quantization coordinates used to determine the peak region.

[0222] In other words, the first quantization coordinate can be the quantization coordinate corresponding to the peak value in the second wavenumber domain power distribution, or the quantization coordinate with the largest first value, or the quantization coordinate used to determine the peak region, but is not limited to these.

[0223] In the above embodiments, the first quantization coordinates are quantization coordinates determined based on the second wavenumber domain power distribution of the first channel.

[0224] In some embodiments, the terminal may determine a plurality of first quantization coordinates based on the second wavenumber domain power distribution of the first channel. One first quantization coordinate may be one of the three types of coordinates described above, and the plurality of first quantization coordinates may include at least one of the three types of coordinates described above. First information may indicate the plurality of first quantization coordinates.

[0225] In the above embodiments, the first threshold and the second threshold 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, 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.

[0226] According to Scheme 2, we can integrate the power distribution of the channel in the wavenumber domain (such as the power spectral density function) within each cell. For the transmitting antenna array, which is a two-dimensional array, the cells are two-dimensional cells, and the integration is a double integral.

[0227] For a two-dimensional array, in the wavenumber domain of polar coordinates, the two-dimensional cell is a sector or sector ring, assuming the polar radius quantization value of the two-dimensional cell is k. r The polar radius range is Polar quantization value is k θ The angle range is The integral of the power distribution over the wavenumber domain can be expressed as:

[0228] in, Let P(k) be the integral value. r ,k θ ) represents the power distribution in the wavenumber domain (e.g., the power spectral density function), k r Let k be the independent variable of the extreme radius in the wavenumber domain. θ The polar angle is the independent variable in the wavenumber domain.

[0229] Optionally, steps S2101 and S2102 can be performed in reverse order or simultaneously.

[0230] Step S2103: The terminal sends the first information to the network device.

[0231] In some embodiments, the terminal sends first information. For example, the terminal sends the first information to a network device, but is not limited thereto; the terminal may also send the first information to other entities. In some embodiments, the network device receives the first information. For example, the network device receives the first information sent by the terminal, but is not limited thereto; the network device may also receive the first information sent by other entities.

[0232] In some embodiments, the name of the first information is not limited, and it may be, for example, “wavenumber domain information (WDI)”.

[0233] In some embodiments, the first information is used to indicate the aforementioned first quantized coordinates. The first quantized coordinates are quantized coordinates; that is, the coordinates indicated by the first information are quantized coordinates. Quantized coordinates refer to the quantized coordinates. The terminal determines the first quantized coordinates in the wavenumber domain based on the first wavenumber domain power distribution of the first channel and reports the first quantized coordinates to the network device.

[0234] Combining Scheme 1 and Scheme 2 above, the coordinate system type of each quantization coordinate in the wavenumber domain is a polar coordinate system, and a quantization coordinate includes a polar radius quantization value and a polar angle quantization value.

[0235] The following section explains the polar radius quantization value set and the polar angle quantization value set in conjunction with the parameters in the configuration information.

[0236] (1) Radius quantization value

[0237] In some embodiments, the terminal obtains configuration information and determines the set of extreme radius quantization values ​​based on the configuration information. Optionally, if the terminal does not obtain configuration information, it can determine the set of extreme radius quantization values ​​based on the default values ​​of each parameter.

[0238] Optionally, this configuration information can be used to configure at least one of the following:

[0239] Extreme radius quantization type;

[0240] Uniform quantization interval Δ of the polar diameter r ;

[0241] Number of polarity quantization intervals N r ;

[0242] Initial offset value δ for radius quantization r .

[0243] Optionally, at least one of the above parameters can be a default value, a predefined value, or be determined by the terminal itself.

[0244] (1-1) If uniform quantization is used for the polar radius, for example, if the configuration information specifies uniform quantization as the polar radius quantization type and uniform quantization interval, then the polar radius quantization value can be expressed as k0(δ r +n r Δ r ), λ is the wave number, λ is the wavelength, and δ is the wavelength. r n is the initial offset value for radius quantization. r The index for the polar radius quantization value (also called the polar radius index of the quantization coordinates), n r The value of Δ is a non-negative integer. r This represents the uniform quantization interval for the extreme radius. The set of extreme radius quantization values ​​can be represented as... It is the set of non-negative integers.

[0245] In the above embodiments, if the initial offset value for polar radius quantization is not explicitly configured, its default value, such as δ, can be used. r =0, or the initial offset value for polar radius quantization can be omitted.

[0246] For example, according to the above expression for the set of extreme radius quantization values, n r When the value is 0, the corresponding extreme radius quantization value is k0δ. r If δ r =0, then the quantization value of the radius is 0.

[0247] Optionally, each polar radius quantization value can be normalized to the wavenumber, that is, each polar radius quantization value can be expressed as (δ r +n r Δ r The set of extreme radius quantization values ​​can be represented as:

[0248] Optionally, the polar radius uniform quantization interval can be normalized to the wavenumber.

[0249] (1-2) If uniform quantization is used for the polar radius, for example, if the configuration information specifies uniform quantization as the polar radius quantization type and the number of polar radius quantization intervals, then the polar radius quantization value can be expressed as: λ is the wave number, λ is the wavelength, and δ is the wavelength. r n is the initial offset value for radius quantization. r n is the index of the extreme radius quantization value. r The value ranges from 0 to N. r Integers in -1, N r This represents the number of radius quantization intervals. The set of radius quantization values ​​can be represented as...

[0250] In the above embodiments, if the initial offset value for polar radius quantization is not explicitly configured, its default value, such as δ, can be used. r =0, or the initial offset value for polar radius quantization can be omitted.

[0251] For example, according to the above expression for the set of extreme radius quantization values, n r When the value is 0, the corresponding extreme radius quantization value is k0δ. r If δ r =0, then the quantization value of the radius is 0; n r The value is N r When -1, the corresponding extreme radius quantization value is k0.

[0252] Optionally, each polar radius quantization value can be normalized to the wavenumber, that is, each polar radius quantization value can be expressed as The set of extreme radius quantization values ​​can be represented as

[0253] (1-3) If non-uniform quantization is used for the polar radius, for example, if the configuration information specifies non-uniform quantization as the polar radius quantization type and the number of polar radius quantization intervals, then the polar radius quantization value can be expressed as: λ is the wave number, λ is the wavelength, and δ is the wavelength. r n is the initial offset value for radius quantization. r n is the index of the extreme radius quantization value. r The value ranges from 0 to N. r Integers in -1, N r This represents the number of radius quantization intervals. The set of radius quantization values ​​can be represented as...

[0254] In the above embodiments, if the initial offset value for polar radius quantization is not explicitly configured, then its default value can be used, for example... Alternatively, the initial offset value for extreme radius quantization can be omitted.

[0255] For example, according to the above expression for the set of extreme radius quantization values, n r When the value is 0, the corresponding radius quantization value is like Then the quantization value of the extreme diameter is... n r The value is N r When -1, the corresponding extreme radius quantization value is k0.

[0256] Optionally, each polar radius quantization value can be normalized to the wavenumber, that is, each polar radius quantization value can be expressed as The set of extreme radius quantization values ​​can be represented as

[0257] (2) Polar quantization value

[0258] In some embodiments, the terminal obtains configuration information and determines a set of polar angle quantization values ​​based on the configuration information. Optionally, if the terminal does not obtain configuration information, it can determine the set of polar angle quantization values ​​based on the default values ​​of each parameter.

[0259] Optionally, this configuration information can be used to configure at least one of the following:

[0260] Polar quantization interval Δ θ ;

[0261] Number of polar angle quantization intervals N θ ;

[0262] Polar quantization initial offset value δ θ .

[0263] Optionally, at least one of the above parameters can be a default value, a predefined value, or be determined by the terminal itself.

[0264] (2-1) If the polar quantization interval number is configured in this configuration information, then the polar quantization value can be expressed as: δ θ n is the initial offset value for polar angle quantization. θ n is the index of the polar angle quantization value (also called the polar angle index of the quantization coordinates). θ The value ranges from 0 to N. θ Integers in -1, N θ This represents the number of polar quantization intervals. The set of polar quantization values ​​can be represented as...

[0265] in, It can be equivalently replaced with

[0266] For example, according to the above expression for the polar angle quantization value, n θ When the value is 0, the corresponding polar angle quantization value is δ. θ ;n θ The value is N θ When -1, the corresponding polar angle quantization value is

[0267] In the above embodiments, if the initial offset value for polar angle quantization is not explicitly configured, then its default value, such as δ, can be used. θ =0, or the initial offset value for polar quantization can be omitted.

[0268] (2-2) If the polar quantization interval is configured in this configuration information, then the polar quantization value can be expressed as δ. θ +n θ Δ θ δ θ n is the initial offset value for polar angle quantization. θ n is the index of the polar angle quantization value. θ The value of Δ is a non-negative integer. θ This represents the polar quantization interval. The set of polar quantization values ​​can be represented as...

[0269] Where, 0≤δ θ +n θ Δ θ ≤2π can be equivalently replaced by -π≤δ θ +n θ Δ θ ≤π.

[0270] For example, according to the above expression for the polar angle quantization value, nθ When the value is 0, the corresponding polar angle quantization value is δ. θ .

[0271] In the above embodiments, if the initial offset value for polar angle quantization is not explicitly configured, then its default value, such as δ, can be used. θ =0, or the initial offset value for polar quantization can be omitted.

[0272] In some embodiments, if the first wavenumber domain power distribution or the second wavenumber domain power distribution of the first channel is not normalized to the wavenumber, then the uniform quantization interval of the polar radius and the quantization values ​​of each polar radius are not normalized to the wavenumber. In some embodiments, if the first wavenumber domain power distribution or the second wavenumber domain power distribution of the first channel is normalized to the wavenumber, then the uniform quantization interval of the polar radius and the quantization values ​​of each polar radius are normalized to the wavenumber.

[0273] The first information indicates the first quantized coordinates, for example, the polar coordinates (k) of the first quantized coordinates are directly reported in the first information. r +k θ ), or report the polar coordinate index (n) of the first quantized coordinate in the first information. r ,n θ Polar coordinate indexes, also known as quantization indexes, include indexes for polar radius quantization values ​​(polar radius index) and polar angle quantization values ​​(polar angle index).

[0274] In some embodiments, the terminal determines each quantization region in the wavenumber domain based on at least one of the above parameters. For example, the size of each sector or sector ring is related to the polar angle quantization interval, the polar radius uniform quantization interval, and the polar radius quantization initial offset value, and the position of each sector or sector ring is related to the polar radius quantization initial offset value and the polar angle quantization initial offset value.

[0275] 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. 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 decides independently 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. Optionally, the network device receives the CSI, and the CSI contains the first information.

[0276] 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.

[0277] In the above embodiments, the terminal reports first information to the network device. This first information is obtained from the wavenumber domain power distribution of the first channel. Therefore, the first information is essentially a type of channel state information, enabling the network device to obtain this 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. Furthermore, the coordinates indicated by the first information are quantized coordinates; quantizing the coordinates saves feedback overhead.

[0278] The method proposed in this disclosure not only guarantees the quantization accuracy and link capacity of WDI, but also, compared with the quantization method based on the Cartesian coordinate system, the quantization range of the polar coordinate system-based quantization method only includes the inner region of the circle and does not include the four corner regions, which can further reduce the feedback overhead of WDI.

[0279] 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.

[0280] 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.

[0281] In some embodiments, terms such as “feedback,” “send,” “transmit,” “report,” “transmit,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0282] The information reporting method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2103. For example, steps S2102 and S2103 may be implemented as independent embodiments, but are not limited thereto.

[0283] In some embodiments, step S2101 is optional and may be omitted or replaced in different embodiments.

[0284] In some embodiments, steps S2101 and S2102 may be performed in an alternate order or simultaneously.

[0285] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0286] Figure 2B is an interactive schematic diagram of an information reporting method according to an embodiment of the present disclosure. As shown in Figure 2B, the embodiments of the present disclosure relate to an information reporting method, which includes:

[0287] Step S2201: The network device sends configuration information to the terminal.

[0288] The optional implementation of step S2201 can be found in the optional implementation of step S2101 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0289] Step S2202: The terminal determines the first wavenumber domain power distribution of the first channel.

[0290] The optional implementation of step S2202 can be found in the optional implementation of step S2102 in Figure 2A and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0291] In some embodiments, the power distribution in the first wavenumber domain of the first channel may be normalized to the wavenumber or not.

[0292] Step S2203: The terminal determines the first coordinates based on the first wavenumber domain power distribution of the first channel.

[0293] The optional implementation of step S2203 can be found in the optional implementation of step S2102 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0294] The terminal determines the first coordinate based on the first wavenumber domain power distribution of the first channel. The first wavenumber domain power distribution of the first channel includes the wavenumber domain power distribution values ​​corresponding to different coordinates of the first channel in the wavenumber domain (the coordinates here are the coordinates before quantization), so the determined first coordinate is the coordinate before quantization.

[0295] Alternatively, the first coordinate can be one of the following:

[0296] The coordinates corresponding to the peak value in the first wave domain power distribution;

[0297] The coordinates corresponding to the wavenumber domain power distribution values ​​that are greater than the first threshold in the first wavenumber domain power distribution;

[0298] Used to determine the coordinates of the peak region in the first wavenumber domain power distribution.

[0299] Therefore, the first coordinate can be the peak coordinate in the first wavenumber domain power distribution of the first channel, or the coordinate with a larger corresponding wavenumber domain power distribution value, or the coordinate used to determine the peak region, but is not limited to these.

[0300] Optionally, the first threshold can be an absolute threshold or a relative threshold.

[0301] Step S2204: The terminal determines the first quantization coordinates based on the first coordinates.

[0302] The optional implementation of step S2204 can be found in the optional implementation of step S2102 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0303] Here, the first quantization coordinate is the quantization coordinate corresponding to the first coordinate. The terminal obtains the quantization coordinate corresponding to the first coordinate by quantizing the first coordinate. For example, assuming there are M quantization regions in the wavenumber domain, and each quantization region corresponds to a quantization coordinate, then the quantization coordinate corresponding to the first coordinate is: the quantization coordinate corresponding to the quantization region where the first coordinate is located.

[0304] Optionally, the optional implementations of steps S2203 to S2204 can be found in the optional implementation of scheme 1 in step S2102 of Figure 2A.

[0305] Step S2205: The terminal sends first information to the network device. The first information is used to indicate the first quantized coordinates.

[0306] The optional implementation of step S2205 can be found in the optional implementation of step S2103 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0307] In some embodiments, the terminal can determine multiple first coordinates based on the first wavenumber domain power distribution of the first channel. The first information can indicate multiple first quantized coordinates, where each first quantized coordinate is a quantized coordinate corresponding to a first coordinate.

[0308] In some embodiments, the first quantization coordinate can be polar coordinate, for example, the first quantization coordinate is represented by a polar radius quantization value and a polar angle quantization value.

[0309] In some embodiments, the first information indicates the first quantized coordinates, for example, the polar coordinates (k) of the first quantized coordinates are directly reported in the first information. r ,k θ ), or report the polar coordinate index (n) of the first quantized coordinate in the first information. r ,n θ ).

[0310] The information reporting method involved in the embodiments of this disclosure may include at least one of steps S2201 to S2205. For example, steps S2202+S2203+S2204+S2205 can be implemented as an independent embodiment, steps S2204+S2205 can be implemented as an independent embodiment, and steps S2201+S2205 can be implemented as an independent embodiment, but are not limited thereto.

[0311] In some embodiments, step S2201 is optional and may be omitted or replaced in different embodiments.

[0312] In some embodiments, steps S2201 to S2204 may be performed in an alternate order or simultaneously.

[0313] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0314] Figure 2C is an interactive schematic diagram of an information reporting method according to an embodiment of the present disclosure. As shown in Figure 2C, the embodiments of the present disclosure relate to an information reporting method, which includes:

[0315] Step S2301: The network device sends configuration information to the terminal.

[0316] The optional implementation of step S2301 can be found in the optional implementation of step S2101 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0317] Step S2302: The terminal determines the first wavenumber domain power distribution of the first channel.

[0318] The optional implementation of step S2302 can be found in the optional implementation of step S2102 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0319] Step S2303: The terminal determines the second wavenumber domain power distribution of the first channel based on the first wavenumber domain power distribution of the first channel.

[0320] The optional implementation of step S2303 can be found in the optional implementation of step S2102 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0321] The second wavenumber domain power distribution of the first channel can be obtained by integrating the first wavenumber domain power distribution within each quantization region. Specifically, one quantization region corresponds to one quantization coordinate, and the second wavenumber domain power distribution contains multiple first values ​​corresponding to each quantization coordinate. The first value corresponding to a quantization coordinate is obtained by integrating the first wavenumber domain power distribution within the quantization region corresponding to that quantization coordinate.

[0322] Optionally, the first value corresponding to a quantization coordinate is the integral value of the first wavenumber domain power distribution within the quantization region corresponding to that quantization coordinate. Optionally, the first value corresponding to a quantization coordinate is the product of the integral value of the first wavenumber domain power distribution within the quantization region corresponding to that quantization coordinate and a first coefficient. This first coefficient can be a constant coefficient and is non-zero. Optionally, the first coefficient is the same for all quantization coordinates (or quantization regions or integral values) within the wavenumber domain. Optionally, the first coefficient can be determined based on the size of the quantization region, that is, the first coefficient is related to the size of the quantization region; for example, the first coefficient can be the reciprocal of the area of ​​the quantization region. Of course, the first coefficient can also be independent of the size of the quantization region.

[0323] In some embodiments, step S2302 is optional. The terminal may not obtain the first wavenumber domain power distribution. Instead, the terminal measures a reference signal (such as CSI-RS) and performs channel estimation, and then calculates the second wavenumber domain power distribution of the first channel based on the estimated channel.

[0324] In some embodiments, the power distribution in the first wavenumber domain of the first channel may be normalized to the wavenumber or not.

[0325] In some embodiments, the second wavenumber domain power distribution of the first channel may be normalized to the wavenumber or not.

[0326] Step S2304: The terminal determines the first quantization coordinates based on the second wavenumber domain power distribution of the first channel.

[0327] The optional implementation of step S2304 can be found in the optional implementation of step S2102 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0328] Since the second wavenumber domain power distribution is the power distribution obtained by quantizing the first wavenumber domain power distribution, the coordinates in the first wavenumber domain power distribution have been quantized into quantized coordinates in the second wavenumber domain power distribution. Therefore, the first quantized coordinates can be determined based on the second wavenumber domain power distribution of the first channel.

[0329] Optionally, the first quantization coordinate can be one of the following:

[0330] The quantization coordinates corresponding to the peak values ​​in the second wave power distribution;

[0331] The quantization coordinates corresponding to the first value greater than the second threshold in the second wave power distribution;

[0332] Quantization coordinates used to determine the peak region in the second wavenumber domain power distribution.

[0333] Therefore, the first quantization coordinate can be the quantization coordinate corresponding to the peak value in the second wavenumber domain power distribution of the first channel, or the quantization coordinate with the larger first value, or the quantization coordinate used to determine the peak region, but is not limited to these.

[0334] Optionally, the second threshold can be an absolute threshold or a relative threshold.

[0335] Optionally, the optional implementations of steps S2303 to S2304 can be found in the optional implementation of scheme 2 in step S2102 of Figure 2A.

[0336] Step S2305: The terminal sends first information to the network device. The first information is used to indicate the first quantized coordinates.

[0337] The optional implementation of step S2305 can be found in the optional implementation of step S2103 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0338] In some embodiments, the terminal can determine multiple first coordinates based on the first wavenumber domain power distribution of the first channel. The first information can indicate multiple first quantized coordinates, where each first quantized coordinate is a quantized coordinate corresponding to a first coordinate.

[0339] In some embodiments, the first quantization coordinate can be polar coordinate, for example, the first quantization coordinate is represented by a polar radius quantization value and a polar angle quantization value.

[0340] In some embodiments, the first information indicates the first quantized coordinates, for example, the polar coordinates (k) of the first quantized coordinates are directly reported in the first information. r ,k θ ), or report the polar coordinate index (n) of the first quantized coordinate in the first information. r ,n θ ).

[0341] The information reporting method involved in the embodiments of this disclosure may include at least one of steps S2301 to S2305. For example, steps S2302+S2303+S2304+S2305 can be implemented as an independent embodiment, steps S2303+S2304+S2305 can be implemented as an independent embodiment, and steps S2301+S2305 can be implemented as an independent embodiment, but are not limited thereto.

[0342] In some embodiments, step S2301 is optional and may be omitted or replaced in different embodiments.

[0343] In some embodiments, steps S2301 to S2302 may be performed in an alternate order or simultaneously.

[0344] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0345] Figure 3 is an interactive schematic diagram of an information reporting method according to an embodiment of the present disclosure. As shown in Figure 3, this disclosure relates to an information reporting method, which includes:

[0346] Step S3101: Determine the first quantization coordinates based on the first wavenumber domain power distribution of the first channel.

[0347] The optional implementation of step S3101 can be found in the optional implementation of step S2102 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0348] In some embodiments, the coordinate system type of the first quantized coordinate is a polar coordinate system, and the first quantized coordinate is a polar coordinate.

[0349] In some embodiments, the above steps may include: determining a first coordinate based on the first wavenumber domain power distribution of the first channel, and then determining a first quantization coordinate based on the first coordinate. The first quantization coordinate is the quantization coordinate corresponding to the first coordinate.

[0350] In some embodiments, the first coordinate is one of the following:

[0351] The coordinates corresponding to the peak value in the first wave domain power distribution;

[0352] The coordinates corresponding to the wavenumber domain power distribution values ​​that are greater than the first threshold in the first wavenumber domain power distribution;

[0353] Used to determine the coordinates of the peak region in the first wavenumber domain power distribution.

[0354] In the above embodiment, the terminal first determines the first coordinate based on the first wavenumber domain power distribution of the first channel. At this time, the first coordinate is the coordinate before quantization. Then, the terminal determines the quantized coordinate corresponding to the first coordinate. That is, the terminal quantizes the first coordinate to obtain the quantized coordinate corresponding to the first coordinate. The implementation method of the terminal determining the first coordinate and determining the first quantized coordinate can be found in the optional implementation method of Scheme 1 in step S2102 of Figure 2A.

[0355] In some embodiments, the above steps may include: determining a second wavenumber domain power distribution of the first channel based on a first wavenumber domain power distribution of the first channel, and then determining a first quantization coordinate based on the second wavenumber domain power distribution of the first channel. The second wavenumber domain power distribution includes first values ​​corresponding to multiple quantization coordinates, each quantization coordinate corresponding to a quantization region, and the first value corresponding to each quantization coordinate is either the integral value of the first wavenumber domain power distribution within the quantization region corresponding to the quantization coordinate, or the product of the integral value and a first coefficient.

[0356] In some embodiments, the first quantization coordinate is one of the following:

[0357] The quantization coordinates corresponding to the peak values ​​in the second wave power distribution;

[0358] The quantization coordinates corresponding to the first value greater than the second threshold in the second wave power distribution;

[0359] Quantization coordinates used to determine the peak region in the second wavenumber domain power distribution.

[0360] In the above embodiment, the terminal determines the second wavenumber domain power distribution of the first channel based on the first wavenumber domain power distribution of the first channel. Since the second wavenumber domain power distribution is a power distribution obtained by quantizing the first wavenumber domain power distribution, the coordinates in the first wavenumber domain power distribution have been quantized into quantized coordinates in the second wavenumber domain power distribution. Therefore, the first quantized coordinates can be determined based on the second wavenumber domain power distribution of the first channel. The implementation method of the terminal determining the second wavenumber domain power distribution of the first channel and determining the first quantized coordinates based on the second wavenumber domain power distribution can be found in the optional implementation method of Scheme 2 in step S2102 of Figure 2A.

[0361] In some embodiments, the transmitting antenna array of the network device is a two-dimensional array.

[0362] In some embodiments, the first quantization coordinate is a polar coordinate, for example, the first quantization coordinate is represented by a polar radius quantization value and a polar angle quantization value. Optionally, the polar radius uses uniform quantization or non-uniform quantization. Optionally, the polar angle uses uniform quantization.

[0363] In some embodiments, the terminal obtains configuration information. Optionally, the terminal receives configuration information sent by a network device, or receives configuration information sent by another entity.

[0364] In some embodiments, the configuration information is used to configure at least one of the following:

[0365] Extreme radius quantization type;

[0366] Uniform quantization interval Δ of the polar diameter r ;

[0367] Number of polarity quantization intervals N r ;

[0368] Initial offset value δ for radius quantization r ;

[0369] Polar quantization interval Δ θ ;

[0370] Number of polar angle quantization intervals N θ ;

[0371] Polar quantization initial offset value δ θ .

[0372] In some embodiments, if uniform quantization is used for the polar radius, for example, if the polar radius quantization type is uniform quantization, the polar radius quantization value in the first quantization coordinate is represented as k0(δ). r +n r Δ r ), λ is the wave number, λ is the wavelength, and δ is the wavelength. r n is the initial offset value for radius quantization. r n is the index of the extreme radius quantization value. r The value of Δ is a non-negative integer. r The quantization interval is for uniform polarity.

[0373] In some embodiments, if uniform quantization is used for the polar radius, for example, if the polar radius quantization type is uniform quantization, the polar radius quantization value in the first quantization coordinate is represented as follows: λ is the wave number, λ is the wavelength, and δ is the wavelength. r n is the initial offset value for radius quantization. r n is the index of the extreme radius quantization value. r The value ranges from 0 to N. r Integers in -1, N rThis represents the number of polar radius quantization intervals.

[0374] In some embodiments, if non-uniform quantization is used for the polar radius, for example, if the polar radius quantization type is non-uniform quantization, the polar radius quantization value in the first quantization coordinate is represented as follows: λ is the wave number, λ is the wavelength, and δ is the wavelength. r n is the initial offset value for radius quantization. r n is the index of the extreme radius quantization value. r The value ranges from 0 to N. r Integers in -1, N r This represents the number of polar radius quantization intervals.

[0375] In some embodiments, the polar angle is uniformly quantized, and the polar angle quantization value in the first quantized coordinate is expressed as: δ θ n is the initial offset value for polar angle quantization. θ n is the index of the polar angle quantization value. θ The value ranges from 0 to N. θ Integers in -1, N θ This represents the number of polar angle quantization intervals.

[0376] In some embodiments, the polar angle is uniformly quantized, and the polar angle quantization value in the first quantization coordinate is represented as δ. θ +n θ Δ θ δ θ n is the initial offset value for polar angle quantization. θ n is the index of the polar angle quantization value. θ The value of Δ is a non-negative integer. θ This is the polar angle quantization interval.

[0377] Step S3102: The terminal sends the first information to the network device.

[0378] The optional implementation of step S3102 can be found in the optional implementation of step S2103 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0379] In some embodiments, the first information is used to indicate the first quantized coordinates.

[0380] In some embodiments, the first information indicates the first quantized coordinates, for example, the polar coordinates (k) of the first quantized coordinates are directly reported in the first information. r ,k θ ), or report the polar coordinate index (n) of the first quantized coordinate in the first information. r n θ ).

[0381] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0382] Figure 4 is an interactive schematic diagram of a wavenumber domain information (WDI) quantization method according to an embodiment of the present disclosure. As shown in Figure 4, the embodiments of the present disclosure relate to a wavenumber domain information quantization method, which includes:

[0383] Step S4101: gNB sends WDI quantization configuration information to UE.

[0384] WDI quantization configuration information is used by the UE to quantize WDI based on polar coordinates, and its content includes at least one of the following:

[0385] (1) Radius quantization type, such as "uniform quantization" and "non-uniform quantization". If the radius quantization type is not explicitly configured, the default value is used. The default value can be "uniform quantization" or "non-uniform quantization".

[0386] (2) The uniform quantization interval of the polar radius is denoted as Δ. r ∈(0, k0).

[0387] (3) The number of polar radius quantization intervals, denoted as

[0388] (4) Initial offset value for polar radius quantization, denoted as δ r δ r ≥0.

[0389] (5) Polar quantization interval, denoted as Δ θ Δ θ >0.

[0390] (6) The number of polar angle uniform quantization intervals, denoted as

[0391] (5) Initial offset value for polar angle quantization, denoted as δ θ δ θ ≥0.

[0392] Step S4102: The UE reports WDI to the gNB.

[0393] The UE calculates the wavenumber domain power distribution and WDI of the channel, quantizes the WDI according to the WDI quantization configuration information, and reports it to the gNB.

[0394] Optionally, the UE measures a reference signal (such as CSI-RS) and performs channel estimation, then calculates the wavenumber domain power distribution of the channel based on the estimated channel. This wavenumber domain power distribution can be the power spectral density of the channel in the wavenumber domain, or the scattering function, or the square of the spectral factor, or it can correspond only to the power spectral density on the gNB side, or only to the scattering function on the gNB side, or only to the square of the spectral factor on the gNB side.

[0395] (1) Polar quantization

[0396] Based on the received WDI quantization configuration information, if the number of polar angle uniform quantization intervals N is configured... θ The polar quantization value of WDI can be expressed as: Wherein, if the polar angle quantization initial offset δ θ If no explicit configuration is specified, then the default value (e.g., δ) will be used. θ =0).

[0397] Based on the received WDI quantization configuration information, if the polar angle quantization interval Δ is configured... θ The polar quantization value of WDI can be expressed as: Wherein, if the polar angle quantization initial offset δ θ If not explicitly configured, then the default value (e.g., δ) will be used. θ =0), or the initial offset for polar quantization can be omitted.

[0398] (2) Radius quantization

[0399] Based on the received WDI quantization configuration information, if the radius quantization type is "uniform quantization" and the radius uniform quantization interval Δ is configured... r Then the extreme radius quantization value of WDI can be expressed as: Wherein, if the initial offset value δ for radius quantization r If not explicitly configured, then the default value (e.g., δ) will be used. r =0), or the initial offset value for polar radius quantization can be omitted.

[0400] Based on the received WDI quantization configuration information, if the polar quantization type is "uniform quantization" and the number of polar quantization intervals N is configured... r Then the extreme radius quantization value of WDI can be expressed as: Wherein, if the initial offset value δ for radius quantization r If not explicitly configured, then the default value (e.g., δ) will be used. r =0), or the initial offset value for polar radius quantization can be omitted.

[0401] Based on the received WDI quantization configuration information, if the polarity quantization type is "non-uniform quantization" and the number of polarity quantization intervals N is configured... r Then the extreme radius quantization value of WDI can be expressed as: Wherein, if the initial offset value δ for radius quantization r If not explicitly configured, then the default value will be used (e.g., ...). Alternatively, the initial offset value for polar radius quantization can be omitted.

[0402] The above embodiments propose a wavenumber domain information quantization method based on polar coordinates, which can further reduce the wavenumber domain information feedback overhead compared to the quantization method based on Cartesian coordinates. Therefore, the wavenumber domain information quantization method proposed according to the embodiments of this disclosure can not only ensure the quantization accuracy and link capacity of WDI, but also control the feedback overhead of WDI to a low level.

[0403] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0404] This disclosure also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, an apparatus is proposed that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Furthermore, another apparatus is proposed 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.

[0405] 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.

[0406] 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).

[0407] Figure 5A is a schematic diagram of the structure of a terminal proposed in an embodiment of this disclosure. Terminal 5100 is used to execute any of the above methods. In some embodiments, as shown in Figure 5A, terminal 5100 may include at least one of a transceiver module 5101, a processing module 5102, etc. In some embodiments, the processing module is used to determine a first quantization coordinate in the wavenumber domain based on the first wavenumber domain power distribution of the first channel. The transceiver module is used to send first information to the network device, wherein the first information is used to indicate the first quantization coordinate, and the coordinate system type of the first quantization coordinate is a polar coordinate system. Optionally, the transceiver module is used to execute at least one of the communication steps (e.g., steps S2103, S2205, S2305, S3102, but not limited thereto) performed by the terminal in any of the above methods, which will not be elaborated further here. Optionally, the above processing module is used to execute at least one of the other steps executed by the terminal in any of the above methods (e.g., steps S2102, S2202, S2203, S2204, S2302, S2303, S2304, S3101, but not limited thereto), which will not be elaborated here.

[0408] Figure 5B is a schematic diagram of the structure of a network device proposed in an embodiment of this disclosure. The network device 5200 is used to perform any of the above methods. In some embodiments, as shown in Figure 5B, the network device 5200 may include at least one of a transceiver module 5201, a processing module 5202, etc. In some embodiments, the transceiver module is used to receive first information sent by a terminal, wherein the first information is used to indicate a first quantization coordinate in the wavenumber domain, the first quantization coordinate is determined according to the first wavenumber domain power distribution of the first channel, and the coordinate system type of the first quantization coordinate is a polar coordinate system. Optionally, the transceiver module is used to perform at least one of the communication steps (e.g., steps S2101, S2201, S2301, but not limited thereto) performed by the network device in any of the above methods, which will not be elaborated here. Optionally, the processing module 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 elaborated here.

[0409] 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.

[0410] 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.

[0411] In some embodiments, the processing module can be replaced by the processor, and the transceiver module can be replaced by the transceiver.

[0412] Figure 6A is a schematic diagram of the structure of the communication device 6100 proposed in an embodiment of this disclosure. The communication device 6100 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 6100 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.

[0413] As shown in Figure 6A, the communication device 6100 is used to execute any of the above methods. In some embodiments, the communication device 6100 includes one or more processors 6101. The processor 6101 may be a general-purpose processor or a special-purpose processor, such as a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may 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. Optionally, the communication device 6100 is used to execute any of the above methods. Optionally, one or more processors 6101 are used to invoke instructions to cause the communication device 6100 to execute any of the above methods.

[0414] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps such as sending and / or receiving in the above-described method (e.g., steps S2101, S2103, S2201, S2205, S2301, S2305, S3102, but not limited thereto), and the processor 6101 performs at least one of other steps (e.g., steps S2102, S2202, S2203, S2204, S2302, S2303, S2304, S3101, but not limited thereto). In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated together. Optionally, terms such as transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface can be used interchangeably; terms such as transmitter, transmitter unit, transmitter, and transmitter circuit can be used interchangeably; and terms such as receiver, receiver unit, receiver, and receiver circuit can be used interchangeably.

[0415] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data and / or instructions. Optionally, one or more processors 6101 are used to invoke instructions stored in the memory 6103 to cause the communication device 6100 to perform any of the above methods. Optionally, all or part of the memory 6103 may also be located outside the communication device 6100. In an optional embodiment, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuit 6104 is connected to the memory 6102 and can be used to receive data and / or instructions from the memory 6102 or other devices, and can be used to send data and / or instructions to the memory 6102 or other devices. For example, the interface circuit 6104 can read data and / or instructions stored in the memory 6102 and send the data and / or instructions to the processor 6101.

[0416] The communication device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 6100 described in this disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6A. The communication device may be a standalone device or a 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, programs and / or instructions; (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.

[0417] Figure 6B is a schematic diagram of the structure of chip 6200 according to an embodiment of this disclosure. For cases where the communication device 6100 can be a chip or a chip system, please refer to the schematic diagram of chip 6200 shown in Figure 6B, but it is not limited thereto.

[0418] Chip 6200 includes one or more processors 6201. Chip 6200 is used to perform any of the methods described above.

[0419] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data and / or instructions. Optionally, all or part of the memories 6203 may be located outside of chip 6200. Optionally, interface circuit 6202 is connected to memory 6203, and interface circuit 6202 can be used to receive data and / or instructions from memory 6203 or other devices, and interface circuit 6202 can be used to send data and / or instructions to memory 6203 or other devices. For example, interface circuit 6202 can read data and / or instructions stored in memory 6203 and send the data and / or instructions to processor 6201.

[0420] In some embodiments, the interface circuit 6202 performs at least one of the communication steps such as sending and / or receiving in the above-described method (e.g., steps S2101, S2103, S2201, S2205, S2301, S2305, S3102, but not limited thereto). The interface circuit 6202 performing the communication steps such as sending and / or receiving in the above-described method refers, for example, to the interface circuit 6202 performing data and / or instruction interaction between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of other steps (e.g., steps S2102, S2202, S2203, S2204, S2302, S2303, S2304, S3101, but not limited thereto).

[0421] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0422] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device, cause the communication device 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.

[0423] This disclosure also proposes a program product, including a program and / or instructions, which, when executed by a communication device, cause the communication device to perform any of the above methods. Optionally, the program product is a computer program product. Optionally, the program product is stored on the storage medium.

[0424] 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: The first quantization coordinates in the wavenumber domain are determined based on the first wavenumber domain power distribution of the first channel. Send first information to the network device, wherein the first information is used to indicate the first quantized coordinates, and the coordinate system type of the first quantized coordinates is polar coordinates.

2. The method according to claim 1, characterized in that, Determining the first quantization coordinates in the wavenumber domain based on the first wavenumber domain power distribution of the first channel includes: The first coordinates are determined based on the first wavenumber domain power distribution of the first channel; The first quantization coordinate is determined based on the first coordinate, and the first quantization coordinate is the quantization coordinate corresponding to the first coordinate.

3. The method according to claim 2, characterized in that, The first coordinate is one of the following: The coordinates corresponding to the peak value in the first wavenumber domain power distribution; The coordinates corresponding to the wavenumber domain power distribution values ​​in the first wavenumber domain power distribution that are greater than the first threshold; Used to determine the coordinates of the peak region in the first wavenumber domain power distribution.

4. The method according to claim 1, characterized in that, Determining the first quantization coordinates in the wavenumber domain based on the first wavenumber domain power distribution of the first channel includes: The second wavenumber domain power distribution of the first channel is determined based on the first wavenumber domain power distribution of the first channel. The second wavenumber domain power distribution includes a first value corresponding to a plurality of quantization coordinates. Each quantization coordinate corresponds to a quantization region. The first value corresponding to each quantization coordinate is the integral value of the first wavenumber domain power distribution within the quantization region corresponding to the quantization coordinate, or the product of the integral value and the first coefficient. The first quantization coordinates are determined based on the second wavenumber domain power distribution of the first channel.

5. The method according to claim 4, characterized in that, The first quantization coordinates include at least one of the following: Quantization coordinates corresponding to the peak values ​​in the second wavenumber domain power distribution; The quantization coordinates corresponding to the first value in the second wavenumber domain power distribution that is greater than the second threshold; Quantization coordinates used to determine the peak region in the second wavenumber domain power distribution.

6. The method according to any one of claims 1-5, characterized in that, When the polar radius quantization type is uniform quantization, the polar radius quantization value in the first quantization coordinate is represented as k0(δ). r +n r Δ r ), λ is the wave number, λ is the wavelength, and δ is the wavelength. r n is the initial offset value for radius quantization. r n is the index of the extreme radius quantization value. r The value of Δ is a non-negative integer. r For uniform quantization intervals of the polar radius; or, When the polar radius quantization type is uniform quantization, the polar radius quantization value in the first quantization coordinate is represented as: n r The value ranges from 0 to N. r Integers in -1, N r For the number of polar radius quantization intervals; or, When the polar radius quantization type is non-uniform quantization, the polar radius quantization value in the first quantization coordinate is represented as: n r The value ranges from 0 to N. r Integers in -1.

7. The method according to any one of claims 1-6, characterized in that, The polar quantization value in the first quantization coordinate is represented as δ θ n is the initial offset value for polar angle quantization. θ n is the index of the polar angle quantization value. θ The value ranges from 0 to N. θ Integers in -1, N θ The number of polar angle quantization intervals; or, The polar quantization value in the first quantization coordinate is represented as δ. θ +n θ Δ θ n θ The value of Δ is a non-negative integer. θ This is the polar angle quantization interval.

8. The method according to claim 6 or 7, characterized in that, The method further includes: Receive configuration information sent by a network device, the configuration information being used to configure at least one of the following: Extreme radius quantization type; Uniform quantization interval Δ of the polar diameter r ; Number of polarity quantization intervals N r ; Initial offset value δ for radius quantization r ; Polar quantization interval Δ θ ; Number of polar angle quantization intervals N θ ; Polar quantization initial offset value δ θ .

9. 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 a first quantization coordinate in the wavenumber domain, the first quantization coordinate is determined according to the first wavenumber domain power distribution of the first channel, and the coordinate system type of the first quantization coordinate is a polar coordinate system.

10. The method according to claim 9, characterized in that, When the polar radius quantization type is uniform quantization, the polar radius quantization value in the first quantization coordinate is represented as k0(δ). r +n r Δ r ), λ is the wave number, λ is the wavelength, and δ is the wavelength. r n is the initial offset value for radius quantization. r n is the index of the extreme radius quantization value. r The value of Δ is a non-negative integer. r For uniform quantization intervals of the polar radius; or, When the polar radius quantization type is uniform quantization, the polar radius quantization value in the first quantization coordinate is represented as: n r The value ranges from 0 to N. r Integers in -1, N r For the number of polar radius quantization intervals; or, When the polar radius quantization type is non-uniform quantization, the polar radius quantization value in the first quantization coordinate is represented as: n r The value ranges from 0 to N. r Integers in -1.

11. The method according to claim 9 or 10, characterized in that, The polar quantization value in the first quantization coordinate is represented as δ θ n is the initial offset value for polar angle quantization. θ n is the index of the polar angle quantization value. θ The value ranges from 0 to N. θ Integers in -1, N θ The number of polar angle quantization intervals; or, The polar quantization value in the first quantization coordinate is represented as δ. θ +n θ Δ θ n θ The value of Δ is a non-negative integer. θ This is the polar angle quantization interval.

12. The method according to claim 10 or 11, characterized in that, The method further includes: The terminal is sent configuration information, which is used to configure at least one of the following: Extreme radius quantization type; Uniform quantization interval Δ of the polar diameter r ; Number of polarity quantization intervals N r ; Initial offset value δ for radius quantization r ; Polar quantization interval Δ θ ; Number of polar angle quantization intervals N θ ; Polar quantization initial offset value δ θ .

13. A terminal, characterized in that, include: The processing module is configured to determine the first quantization coordinates in the wavenumber domain based on the first wavenumber domain power distribution of the first channel; The transceiver module is configured to send first information to a network device, wherein the first information is used to indicate the first quantized coordinates, and the coordinate system type of the first quantized coordinates is a polar coordinate system.

14. 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 a first wavenumber domain. The first quantization coordinate is determined based on the first wavenumber domain power distribution of the first channel, and the coordinate system type of the first quantization coordinate is a polar coordinate system.

15. A communication system, characterized in that, include: The terminal is configured to implement the method of any one of claims 1-8; as well as, A network device configured to implement the method of any one of claims 9-12.

16. 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 1-12.

17. 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 1-12.

18. 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 1-12.

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