Codebook determination method and apparatus, and storage medium

Abstract

The present disclosure relates to a codebook determination method and apparatus, and a storage medium. The method comprises: receiving at least one mask pattern sent by a network device; and generating at least one first codebook on the basis of the at least one mask pattern, the first codebook being used for precoding data. In the embodiments, at least one first codebook is generated on the basis of at least one configured mask pattern, thereby ensuring that different first codebooks can be generated on the basis of different mask patterns, expanding the forms of the first codebooks, ensuring accuracy of data precoding based on the first codebooks, and further ensuring communication reliability.

Description

Codebook determination method, apparatus and storage medium Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to codebook determination methods, apparatus and storage media. Background Technology

[0002] With the rapid development of mobile communication technology, multiple-in-multiple-out (MIMO) systems can effectively improve the capacity and throughput of wireless communication systems by equipping base stations with multiple antennas. Typically, the radiation range of an antenna array can be divided into near-field and far-field regions. Electromagnetic waves in the far-field region propagate as plane waves, while those in the near-field region propagate as spherical waves.

[0003] Summary of the Invention

[0004] The solution provided in this disclosure enables the generation of at least one first codebook by configuring at least one mask pattern, ensuring that different mask patterns can generate different first codebooks, expanding the style of the first codebook, ensuring the accuracy of data precoding based on the first codebook, and thus ensuring communication reliability.

[0005] This disclosure presents a codebook determination method, apparatus, and storage medium.

[0006] According to a first aspect of the embodiments of this disclosure, a codebook determination method is proposed, the method being executed by a terminal, the method comprising:

[0007] Receive at least one mask pattern sent by the network device;

[0008] At least one first codebook is generated based on the at least one mask pattern, and the first codebook is used to pre-encode the data.

[0009] According to a second aspect of the embodiments of this disclosure, a codebook determination method is provided, the method being executed by a network device, the method comprising:

[0010] At least one mask pattern is sent to the terminal; the at least one mask pattern is used to generate at least one first codebook, the first codebook being used to pre-encode the data.

[0011] According to a third aspect of the present disclosure, a codebook determination apparatus is provided, comprising: a transceiver module for receiving at least one mask pattern sent by a network device;

[0012] The processing module is configured to generate at least one first codebook based on the at least one mask pattern, wherein the first codebook is used to pre-encode the data.

[0013] According to a fourth aspect of the present disclosure, a codebook determination apparatus is provided, comprising: a transceiver module for sending at least one mask pattern to a terminal; the at least one mask pattern is used to generate at least one first codebook, the first codebook being used to pre-encode data.

[0014] According to a fifth aspect of the present disclosure, a terminal is provided, comprising: one or more processors; wherein the terminal is configured to perform any of the methods described in the first aspect.

[0015] According to a sixth aspect of the present disclosure, a network device is provided, comprising: one or more processors; wherein the network device is configured to perform any of the methods described in the first aspect.

[0016] According to a seventh aspect of the present disclosure, a communication system is provided, comprising: a terminal and a network device, wherein the terminal is configured to implement the codebook determination method of the first aspect, and the network device is configured to implement the codebook determination method of the first aspect.

[0017] According to an eighth 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 described in the first aspect. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the embodiments of this disclosure and form part of this disclosure, illustrate exemplary embodiments of this disclosure and, together with their descriptions, serve to explain the embodiments of this disclosure and do not constitute an improper limitation of the embodiments of this disclosure. In the drawings:

[0019] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure;

[0020] Figure 2A is an interactive schematic diagram of a codebook determination method according to an embodiment of the present disclosure;

[0021] Figure 2B is a schematic diagram of the structure of a mask pattern according to an embodiment of the present disclosure;

[0022] Figure 2C is a schematic diagram of the structure of a mask pattern according to an embodiment of the present disclosure;

[0023] Figure 2D is a schematic diagram of the structure of a mask pattern according to an embodiment of the present disclosure;

[0024] Figure 3A is a schematic flowchart illustrating a codebook determination method according to an embodiment of the present disclosure;

[0025] Figure 3B is a schematic flowchart illustrating a codebook determination method according to an embodiment of the present disclosure;

[0026] Figure 4A is a schematic flowchart illustrating a codebook determination method according to an embodiment of the present disclosure;

[0027] Figure 4B is a schematic flowchart illustrating a codebook determination method according to an embodiment of the present disclosure;

[0028] Figure 5 is a flowchart illustrating a codebook determination method according to an embodiment of the present disclosure;

[0029] Figure 6 is a schematic flowchart illustrating a codebook determination method according to an embodiment of the present disclosure;

[0030] Figure 7A is a schematic diagram of the codebook determination device proposed in an embodiment of this disclosure;

[0031] Figure 7B is a schematic diagram of the codebook determination device proposed in an embodiment of this disclosure;

[0032] Figure 8A is a schematic diagram of the structure of the communication device proposed in an embodiment of this disclosure;

[0033] Figure 8B is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation

[0034] This disclosure provides a codebook determination method, apparatus, and storage medium.

[0035] In a first aspect, this disclosure provides a codebook determination method, which is executed by a terminal, and the method includes:

[0036] Receive at least one mask pattern sent by the network device;

[0037] At least one first codebook is generated based on the at least one mask pattern, and the first codebook is used to pre-encode the data.

[0038] In the above embodiments, at least one first codebook is generated by configuring at least one mask pattern, ensuring that different mask patterns can generate different first codebooks, expanding the style of the first codebook, ensuring the accuracy of data precoding based on the first codebook, and thus ensuring communication reliability.

[0039] In conjunction with some embodiments of the first aspect, in some embodiments, generating at least one codebook based on the at least one mask pattern includes:

[0040] For each of the at least one mask pattern, a first codebook is determined based on the product of the mask pattern and the vector of each layer of the codewords included in the second codebook.

[0041] In the above embodiments, the first codebook is determined by multiplying the vectors of each layer of the codewords included in the second codebook, ensuring the accuracy of the determined first codebook, ensuring the accuracy of data precoding based on the first codebook, and thus ensuring communication reliability.

[0042] In conjunction with some embodiments of the first aspect, in some embodiments, the second codebook is determined based on at least one of angle domain parameters, range domain parameters, or antenna array parameters.

[0043] In conjunction with some embodiments of the first aspect, in some embodiments, the second codebook is determined based on at least one of the quantized angle domain parameters, the quantized range domain parameters, or the antenna array parameters.

[0044] In the above embodiments, the second codebook is determined by at least one of the angle domain parameters, range domain parameters, or antenna array parameters, ensuring the accuracy of the determined second codebook, and thus ensuring the accuracy of determining the first codebook based on the second codebook.

[0045] In conjunction with some embodiments of the first aspect, in some embodiments, the mask pattern corresponds to the antenna array of the network device, the antenna element corresponding to the first value of the mask pattern is in an active state, and the antenna element corresponding to the second value of the mask pattern is in an inactive state.

[0046] In the above embodiments, by setting different values ​​in the mask pattern to indicate whether the corresponding antenna array element is in an active state, the accuracy of determining different codebooks through the mask pattern is ensured.

[0047] In conjunction with some embodiments of the first aspect, in some embodiments, the antenna array of the network device is a uniform linear array (ULA), and the mask pattern is a first column vector, which is used to indicate the antenna elements in the horizontal or vertical dimensions of the antenna array.

[0048] In conjunction with some embodiments of the first aspect, in some embodiments, the antenna array of the network device is a uniform planar array (UPA), and the mask pattern is a second column vector. The second column vector is determined based on a third column vector and a fourth column vector. The third column vector is used to indicate the antenna elements in the horizontal dimension of the antenna array, and the fourth column vector is used to indicate the antenna elements in the vertical dimension of the antenna array.

[0049] In the above embodiments, the forms of antenna arrays are expanded, and different forms of antenna arrays correspond to different mask patterns, ensuring the accuracy of the mask patterns.

[0050] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0051] A first codeword for precoding is selected from the at least one first codebook, the first codeword belonging to one of the at least one first codebooks.

[0052] In the above embodiments, a first codeword for precoding is determined from at least one predetermined first codebook, ensuring that data is precoded using the first codeword, thereby ensuring the accuracy of the precoding.

[0053] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0054] Send instruction information, which is used to indicate the mask pattern for generating the first codebook to which the first codeword belongs.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, the antenna array is a uniform planar array (UPA), and the indication information indicates a mask pattern in the vertical dimension and a mask pattern in the horizontal dimension; or,

[0056] The indication information includes a first information field and a second information field. The first information field is used to indicate the mask pattern in the vertical dimension, and the second information field is used to indicate the mask pattern in the horizontal dimension.

[0057] In conjunction with some embodiments of the first aspect, in some embodiments, the antenna array is a uniform linear array ULA, and the indication information indicates a mask pattern in the vertical or horizontal dimension.

[0058] In the above embodiments, the mask pattern corresponding to the first codebook to which the first codeword belongs is indicated by the indication information, thereby ensuring the accuracy of the indicated mask pattern and ensuring that the network device can communicate based on the mask pattern, thus ensuring communication reliability.

[0059] Secondly, this disclosure provides a codebook determination method, which is executed by a network device, and the method includes:

[0060] At least one mask pattern is sent to the terminal; the at least one mask pattern is used to generate at least one first codebook, the first codebook being used to pre-encode the data.

[0061] In conjunction with some embodiments of the second aspect, in some embodiments, the first codebook is determined based on the product of each mask pattern in the at least one mask pattern and the layer vector of each codeword included in the second codebook.

[0062] In conjunction with some embodiments of the second aspect, in some embodiments, the second codebook is determined based on at least one of angle domain parameters, range domain parameters, or antenna array parameters.

[0063] In conjunction with some embodiments of the second aspect, in some embodiments, the second codebook is determined based on at least one of the quantized angle domain parameters, the quantized range domain parameters, or the antenna array parameters.

[0064] In conjunction with some embodiments of the second aspect, in some embodiments, the mask pattern corresponds to the antenna array of the network device, the antenna element corresponding to the first value of the mask pattern is in an active state, and the antenna element corresponding to the second value of the mask pattern is in an inactive state.

[0065] In conjunction with some embodiments of the second aspect, in some embodiments, the antenna array of the network device is a uniform linear array (ULA), and the mask pattern is a first column vector, which is used to indicate the antenna elements in the horizontal or vertical dimensions of the antenna array.

[0066] In conjunction with some embodiments of the second aspect, in some embodiments, the antenna array of the network device is a uniform planar array (UPA), and the mask pattern is a second column vector. The second column vector is determined based on a third column vector and a fourth column vector. The third column vector is used to indicate the antenna elements in the horizontal dimension of the antenna array, and the fourth column vector is used to indicate the antenna elements in the vertical dimension of the antenna array.

[0067] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0068] A first codeword for precoding is selected from the at least one first codebook, the first codeword belonging to one of the at least one first codebooks.

[0069] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0070] Receive instruction information, which is used to indicate the mask pattern for generating the first codebook to which the first codeword belongs.

[0071] In conjunction with some embodiments of the second aspect, in some embodiments, the antenna array is a uniform planar array (UPA), and the indication information indicates the mask pattern in the vertical dimension and the mask pattern in the horizontal dimension; or,

[0072] The indication information includes a first information field and a second information field. The first information field is used to indicate the mask pattern in the vertical dimension, and the second information field is used to indicate the mask pattern in the horizontal dimension.

[0073] Thirdly, embodiments of this disclosure provide a codebook determination device, which includes at least one of a transceiver module and a processing module; wherein the codebook determination device is used to execute an optional implementation of the first aspect.

[0074] Fourthly, embodiments of this disclosure provide a codebook determination device, which includes at least one of a transceiver module and a processing module; wherein the codebook determination device is used to execute an optional implementation of the second aspect.

[0075] Fifthly, embodiments of this disclosure provide a terminal, including: one or more processors; wherein the terminal is configured to perform the method described in any one of the first aspects.

[0076] In a sixth aspect, embodiments of this disclosure provide a network device, including: one or more processors; wherein the network device is configured to perform the method described in any one of the second aspects.

[0077] In a seventh aspect, embodiments of this disclosure provide a storage medium storing first information, which, when the first information is executed on a communication device, causes the communication device to perform the method as described in any one of the first aspects.

[0078] Eighthly, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the method as described in either the first or second aspect.

[0079] In a ninth aspect, embodiments of this disclosure provide a computer program that, when run on a communication device, causes the communication device to perform the method described in either the first or second aspect.

[0080] 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 either the first or second aspect.

[0081] It is understood that the aforementioned terminals, storage media, 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.

[0082] This disclosure provides a codebook determination method, apparatus, and storage medium. In some embodiments, the terms "codebook determination method" and "codeword communication method" or "codeword indication method" can be used interchangeably; the terms "codebook determination apparatus" and "codeword communication apparatus" or "codeword indication apparatus" can be used interchangeably; and the terms "information processing system" or "communication system" can be used interchangeably.

[0083] 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.

[0084] In each of the disclosed embodiments, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0085] 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.

[0086] 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.

[0087] In the embodiments disclosed herein, "multiple" refers to two or more.

[0088] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0089] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0090] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0091] 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.

[0092] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0093] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0094] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0095] 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”.

[0096] In some embodiments, the apparatus and device may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "body", etc.

[0097] In some embodiments, "network" can be interpreted as devices included in the network, such as access network devices, core network devices, etc.

[0098] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)," "base station (BS)," "radio base station," or "fixed station." In some embodiments, it may also be understood as "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," or "bandwidth part (BWP)."

[0099] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (terminal)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," etc.

[0100] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0101] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0102] 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.

[0103] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1, the method provided in this embodiment can be applied to a communication system 100, which may include a terminal 101, a network device 102, and a terminal 103. It should be noted that the communication system 100 may also include other devices, and this disclosure does not limit the devices included in the communication system 100.

[0104] In some embodiments, terminal 101 includes, but is not limited to, at least one of the following: mobile phone, wearable device, terminal, car with communication function, smart car, 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.

[0105] In some embodiments, network device 102 may include at least one of access network device and core network device.

[0106] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The 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 eNB (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.

[0107] 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.

[0108] 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.

[0109] 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).

[0110] It is understood that the communication 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.

[0111] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1 are illustrative. The communication system may include all or some of the main bodies in FIG1, or may include other main bodies outside of FIG1. ​​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.

[0112] 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 codebook determination methods, and next-generation systems extended from them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0113] Figure 2A is an interactive schematic diagram of a codebook determination method according to an embodiment of the present disclosure. As shown in Figure 2A, the present disclosure relates to a codebook determination method, which includes:

[0114] In step S2101, the terminal and network device determine the second codebook based on at least one of the angle domain parameters, distance domain parameters, or antenna array parameters.

[0115] In some embodiments, the angle domain parameter refers to the angle between the terminal and the origin of the coordinate system in the antenna array. Optionally, the distance domain parameter refers to the distance between the terminal and the origin of the coordinate system in the antenna array. Optionally, the distance domain parameter includes the maximum distance or the minimum distance in the horizontal dimension. Optionally, the distance domain parameter includes the maximum distance or the minimum distance in the three-dimensional dimension, which is not limited in this disclosure. In some embodiments, the antenna array parameter is used to indicate the parameters of the antenna array configured in the network device.

[0116] Optionally, the antenna array parameters include at least one of the following:

[0117] (1) Number of antenna ports in the horizontal dimension.

[0118] (2) Number of antenna ports in the vertical dimension.

[0119] (3) Antenna spacing in the horizontal dimension.

[0120] (4) Vertical dimension antenna spacing.

[0121] In some embodiments, at least one of the aforementioned angle domain parameters, range domain parameters, or antenna array parameters is configured by the network device. Optionally, before step S2101, the network device sends configuration information to the terminal, which includes at least one of the angle domain parameters, range domain parameters, or antenna array parameters. Upon receiving the configuration information, the terminal can determine at least one of the angle domain parameters, range domain parameters, or antenna array parameters configured by the network device for the terminal using the configuration information. Optionally, the configuration information is carried in RRC (Radio Resource Control) signaling. Alternatively, the configuration information is carried in DCI (Downlink Control Information). It should be noted that the configuration information in this embodiment can also be agreed upon by the communication protocol, and this embodiment does not limit this.

[0122] In some embodiments, the second codebook is used to pre-encode data. In this embodiment of the present disclosure, after determining the second codebook, if the terminal or network device has data to be sent, the second codebook can be used to pre-encode the data to be sent to obtain pre-encoded data, and then the pre-encoded data can be sent.

[0123] In some embodiments, a second codebook is obtained by quantizing at least one of the angle domain parameters or distance domain parameters of the following vectors:

[0124] The product of the trigonometric function of the angle domain parameter and the antenna spacing and element position identifier in the antenna array parameters, the product of the square of the antenna spacing and element position identifier in the antenna array parameters and the square of the trigonometric function of the angle domain parameter, and the wavelength, is at least one of the following:

[0125] Optionally, the product of the trigonometric function of the angle domain parameter and the antenna spacing and element position identifier in the antenna array parameters includes: the product of the cosine function of the angle domain parameter and the antenna spacing and element position identifier in the antenna array parameters.

[0126] Optionally, the product of the antenna spacing and the square of the element position identifier in the antenna array parameters and the square of the trigonometric function of the angle domain parameter includes: the product of the antenna spacing and the square of the element position identifier in the antenna array parameters and the square of the sine function of the angle domain parameter.

[0127] Optionally, a codeword can be represented as:

[0128] Optionally, the element in a codeword corresponding to the position identifier n of an element in the antenna array can be represented as:

[0129] Where λ represents wavelength, d represents antenna spacing, r represents distance, and θ is angle. That is, θ belongs to the angle domain parameter, r belongs to the distance domain parameter, and λ and d belong to the antenna array parameter.

[0130] Optionally, at least one of the angle domain parameters or distance domain parameters in the above formula can be quantized, wherein the cosine or sine value of the angle is uniformly quantized within a certain range, and the distance or the reciprocal of the distance is uniformly quantized within a certain range.

[0131] For example, uniformly quantizing cosθ in the range [-a, a] (a>0) results in quantization as... Where N1 represents the number of sampling points in the horizontal dimension angle domain, O1 represents the oversampling factor in the horizontal dimension angle domain, and l = 0, 1, ..., N1O1-1 represents the quantization index in the horizontal dimension angle domain.

[0132] For example, exist Perform uniform quantization, that is, quantize to For example, placing r in [r min ,r max Perform uniform quantization, that is, quantize to Where N3 represents the number of sampling points in the horizontal distance domain, O3 represents the oversampling factor in the horizontal distance domain, o1 = 0, 1, ..., N3O3-1 represents the quantization index in the horizontal distance domain, and r min and rmax These represent the minimum and maximum values ​​of the quantization range in the horizontal distance domain, respectively. Optionally, they can be expressed as multiples of the wavelength, such as r. min =s min λ and r max =s max .

[0133] It should be noted that the embodiments disclosed herein are illustrated using codewords in the horizontal dimension as an example. In another embodiment, codewords in both the horizontal and vertical dimensions also exist. In this case, the codewords in the horizontal and vertical dimensions can be subjected to the Kronecker product to obtain new codewords, and then the second codebook can be determined using the method described above.

[0134] It should be noted that the order of each column vector in the embodiments of this disclosure is not limited, and the order of each column vector can also be changed.

[0135] In step S2102, the network device sends at least one mask pattern to the terminal.

[0136] In some embodiments, the mask pattern is used to generate a codebook. In some embodiments, each element included in the mask pattern is used to indicate whether the corresponding antenna element is active.

[0137] In some embodiments, the network device sends the number of mask patterns and each mask pattern to the terminal.

[0138] In some embodiments, the network device carries at least one mask pattern via RRC, MAC CE, DCI or other messages, and this disclosure does not limit this.

[0139] It should be noted that the embodiments disclosed herein are illustrated using the example of a network device configuring at least one mask pattern. In another embodiment, the network device may also configure a default mask pattern. For example, the network device may configure four mask patterns, with the first of the four mask patterns configured as the default mask pattern.

[0140] Step S2103: The terminal receives at least one mask pattern sent by the network device.

[0141] In this embodiment of the disclosure, when a terminal receives at least one mask pattern sent by a network device, it can determine the structure of each mask pattern and then determine the first codebook based on the mask pattern.

[0142] Step S2104: The terminal generates at least one first codebook based on at least one mask pattern.

[0143] In this embodiment of the disclosure, at least one mask pattern is used to generate a codebook. Therefore, after the terminal obtains at least one mask pattern, it can generate at least one first codebook based on the obtained at least one mask pattern.

[0144] It should be noted that in this embodiment, the number of mask patterns is the same as the number of the first codebook.

[0145] In some embodiments, for each mask pattern in at least one mask pattern, a first codebook is determined based on the product of the mask pattern and the vectors of each layer of codewords included in the second codebook. Optionally, for the second codebook, the second codebook includes multiple codewords, each codeword including multiple layers of vectors. In this embodiment of the disclosure, it is necessary to obtain the product of the mask pattern and each layer of vectors, and then determine the first codebook based on the obtained multiple products.

[0146] Optionally, for the second codebook, the second codebook includes multiple codewords, each codeword includes multiple layers of vectors, each layer of vectors is multiplied with a mask pattern to obtain multiple products, and then the multiple products are merged to obtain the result corresponding to the codeword. The result corresponding to each codeword is obtained in the same way, and the first codebook is determined based on the multiple obtained results.

[0147] In some embodiments, the mask pattern corresponds to the antenna array of the network device, with the antenna element corresponding to the first value of the mask pattern being in an active state and the antenna element corresponding to the second value of the mask pattern being in an inactive state. Optionally, the first value is 1 and the second value is 0. Alternatively, the first value is 0 and the second value is 1; this disclosure does not limit this.

[0148] It should be noted that the antenna arrays in the embodiments of this disclosure include two cases: ULA and UPA. Each case will be described below.

[0149] In some embodiments, the antenna array of the network device is a uniform linear array ULA, and the mask pattern is a first column vector, which is used to indicate the antenna elements in the horizontal or vertical dimensions of the antenna array.

[0150] Optionally, the mask pattern is always a column vector, and this column vector indicates the antenna elements in the horizontal dimension. For example, if the mask pattern is a column vector with 1 column and N rows, then the indicated antenna array is an antenna array with 1 row and N columns. As another example, if the mask pattern is a column vector with 1 column and N rows, then the indicated antenna array is an antenna array with 1 column and N rows.

[0151] In some embodiments, the antenna array of the network device is a uniform planar array (UPA), and the mask pattern is a second column vector. The second column vector is determined based on a third column vector and a fourth column vector. The third column vector is used to indicate the antenna elements in the horizontal dimension of the antenna array, and the fourth column vector is used to indicate the antenna elements in the vertical dimension of the antenna array.

[0152] For example, if the antenna array includes 8*8 antenna elements, the network device can be configured with the six mask patterns shown in Figure 2B. Mask pattern 1 indicates that all antenna elements are active. Mask pattern 2 indicates that the antenna elements in columns 4 and 5 are inactive. Mask pattern 3 indicates that the antenna elements in rows 4 and 5 are inactive. Mask pattern 4 indicates that the antenna elements in columns 4 and 5, and rows 4 and 5 are inactive. Mask pattern 5 indicates that the antenna elements in columns 3, 4, 5, and 6 are inactive. Mask pattern 6 indicates that the antenna elements in columns 3, 4, 5, and 6, and rows 4 and 5 are inactive.

[0153] For example, if the antenna array includes 8*5 antenna elements, the network device can be configured with the four mask patterns shown in Figure 2C. Mask pattern 1 indicates that all antenna elements are active. Mask pattern 2 indicates that the antenna elements in columns 4 and 5 are inactive. Mask pattern 3 indicates that the antenna elements in columns 4 and 5, as well as the antenna elements in row 3, are inactive. Mask pattern 4 indicates that the antenna elements in columns 4 and 5, as well as the antenna elements in rows 2, 3, and 4, are inactive.

[0154] In step S2105, the terminal selects a first codeword for precoding from at least one first codebook.

[0155] In some embodiments, the first codeword belongs to one of at least one first codebook.

[0156] Optionally, the terminal reports the first codeword through the PMI and reports the codebook to which the first codeword belongs through the index of the first codebook to which the first codeword belongs.

[0157] Step S2106: The terminal sends an instruction message.

[0158] In some embodiments, the indication information is used to indicate the mask pattern of the first codebook to which the first codeword belongs.

[0159] In some embodiments, the antenna array is a uniform planar array (UPA), and the indication information indicates the mask patterns in both the vertical and horizontal dimensions. Optionally, the indication information indicates both the mask patterns in the vertical and horizontal dimensions simultaneously. Optionally, different bits are used to indicate the index of the corresponding mask pattern. For example, if the network device is configured with four mask patterns, the index of the mask pattern can be indicated using two bits. For example, 00 represents mask pattern 1, 01 represents mask pattern 2, 10 represents mask pattern 3, and 11 represents mask pattern 4.

[0160] In some embodiments, the antenna array is a uniform planar array (UPA). The indication information includes a first information field and a second information field. The first information field indicates the mask pattern in the vertical dimension, and the second information field indicates the mask pattern in the horizontal dimension. For example, the first information field indicates the active and inactive antenna elements in the vertical dimension. The second information field indicates the active and inactive antenna elements in the horizontal dimension. For example, as shown in Figure 2D, mask pattern 1 indicates that all antenna elements are active, mask pattern 2 indicates that the middle two antenna elements in the antenna array are inactive, mask pattern 3 indicates that the middle four antenna elements in the antenna array are inactive, and mask pattern 4 indicates that the middle six antenna elements in the antenna array are inactive. If the horizontal dimension is mask pattern 1 and the vertical dimension is mask pattern 2, then combining them can obtain the mask pattern of the inactive antenna elements in the 4th and 5th columns of the 8*8 array, or it can be understood as mask pattern 2 in Figure 2B.

[0161] In some embodiments, the antenna array is a uniform linear array ULA, and the indication information indicates a mask pattern in the vertical or horizontal dimension.

[0162] Step S2107: The network device receives the instruction information.

[0163] In this embodiment of the present disclosure, after receiving the indication information, the network device can determine the mask pattern of the indication based on the indication information, and then determine the corresponding first codebook based on the mask pattern.

[0164] It should be noted that the terminal can also indicate a first codeword. Therefore, after determining the mask pattern, the network device can also determine the indicated first codeword based on the first codebook determined by the mask pattern, and subsequent data transmission can be performed based on the first codeword. Optionally, the indication information can also be used to indicate the first codeword. Alternatively, the terminal can indicate the first codeword through PLA information; this embodiment of the present disclosure does not limit this.

[0165] In some embodiments, after determining the first codeword, the network device can precode the downlink signal / downlink channel according to the first codeword to obtain the precoded signal / precoded channel, and then send the precoded signal / precoded channel to the terminal.

[0166] In this embodiment of the disclosure, the network device precodes the downlink channel / downlink signal based on the first codeword to obtain a precoded channel / precoded signal, and then sends the obtained precoded channel / precoded signal to the terminal, so that the terminal can receive the precoded channel / precoded signal.

[0167] It should be noted that the above embodiment is illustrated using the terminal sending indication information as an example. In another embodiment, the network device measures the uplink channel based on the first codebook, determines the second codeword of the first codebook, and sends indication information, which is used to indicate the second codeword. The network device receives a precoding channel / precoding signal, which is obtained by precoding the uplink data / uplink channel based on the second codeword.

[0168] The codebook determination method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2107. For example, step S2101 can be implemented as an independent embodiment, step S2102 can be implemented as an independent embodiment, step S2103 can be implemented as an independent embodiment, step S2104 can be implemented as an independent embodiment, step S2105 can be implemented as an independent embodiment, step S2106 can be implemented as an independent embodiment, step S2107 can be implemented as an independent embodiment, steps S2101 and S2102 can be implemented as independent embodiments, and steps S2101 and S2103 can be implemented as independent embodiments. Steps S2101 and S2104 can be implemented as independent embodiments, as can steps S2102 and S2103, as can steps S2104, as can steps S2103 and S2104, as can steps S2105, as can steps S2106 and S2107, as can be implemented as independent embodiments, but are not limited thereto.

[0169] In some embodiments, at least one of steps S2101-S2107 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0170] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG2A.

[0171] 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", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0172] In some embodiments, the terms "uplink", "uplink", and "physical uplink" can be used interchangeably, as can the terms "downlink", "downlink", and "physical downlink", as well as the terms "sidelink", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct link", "direct communication", and "direct link communication".

[0173] 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.

[0174] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0175] In some embodiments, terms such as “moment,” “point in time,” “time,” and “time location” can be used interchangeably, as can terms such as “duration,” “segment,” “time window,” “window,” and “time.”

[0176] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0177] Figure 3A is a flowchart illustrating a codebook determination method according to an embodiment of the present disclosure, applied to a terminal. As shown in Figure 3A, this disclosure relates to a codebook determination method, which includes:

[0178] In step S3101, the terminal determines the second codebook based on at least one of the angle domain parameters, range domain parameters, or antenna array parameters.

[0179] The optional implementation of step S3101 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.

[0180] In step S3102, the terminal receives at least one mask pattern sent by the network device.

[0181] 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.

[0182] Step S3103: The terminal generates at least one first codebook based on at least one mask pattern.

[0183] The optional implementation of step S3103 can be found in the optional implementation of step S2104 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0184] In step S3104, the terminal selects a first codeword for precoding from at least one first codebook.

[0185] The optional implementation of step S3104 can be found in the optional implementation of step S2105 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0186] Step S3105: The terminal sends an instruction message.

[0187] The optional implementation of step S3105 can be found in the optional implementation of step S2106 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0188] The codebook determination method involved in the embodiments of this disclosure may include at least one of steps S3101 to S3105. For example, step S3101, step S3102, step S3103, step S3104, and step S3105 may be implemented as independent embodiments.

[0189] Figure 3B is a flowchart illustrating a codebook determination method according to an embodiment of the present disclosure, applied to a terminal. As shown in Figure 3B, this embodiment of the present disclosure relates to a codebook determination method, which includes:

[0190] Step S3201: The terminal receives at least one mask pattern sent by the network device.

[0191] The optional implementation of step S3201 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.

[0192] In step S3202, the terminal generates at least one first codebook based on at least one mask pattern.

[0193] The optional implementation of step S3202 can be found in the optional implementation of step S2104 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0194] The codebook determination method involved in the embodiments of this disclosure may include at least one of steps S3101 to S3102. For example, step S3101 may be implemented as a separate embodiment, and step S3102 may be implemented as a separate embodiment.

[0195] Figure 4A is a flowchart illustrating a codebook determination method according to an embodiment of the present disclosure, applied to a network device. As shown in Figure 4A, this disclosure relates to a codebook determination method, which includes:

[0196] In step S4101, the network device sends at least one mask pattern to the terminal.

[0197] The optional implementation of step S4101 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.

[0198] In step S4102, the network device receives the instruction information.

[0199] The optional implementation of step S4102 can be found in the optional implementation of step S2107 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0200] The codebook determination method involved in the embodiments of this disclosure may include at least one of steps S4101 to S4102. For example, step S4101 may be implemented as a separate embodiment, and step S4102 may be implemented as a separate embodiment.

[0201] Figure 4B is a flowchart illustrating a codebook determination method according to an embodiment of the present disclosure, applied to a terminal. As shown in Figure 4B, this embodiment of the present disclosure relates to a codebook determination method, which includes:

[0202] In step S4201, the network device sends at least one mask pattern to the terminal.

[0203] The optional implementation of step S4201 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.

[0204] Figure 5 is a flowchart illustrating a codebook determination method according to an embodiment of the present disclosure. As shown in Figure 5, the present disclosure relates to a codebook determination method, which includes:

[0205] In step S5101, the network device sends at least one mask pattern to the terminal.

[0206] The optional implementation of step S5101 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.

[0207] In step S5102, the terminal receives at least one mask pattern sent by the network device.

[0208] The optional implementation of step S5102 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.

[0209] Step S5103: The terminal generates at least one first codebook based on at least one mask pattern.

[0210] The optional implementation of step S5103 can be found in the optional implementation of step S2104 in Figure 2A, as well as other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0211] In some embodiments, the above methods may include the methods of the embodiments described above on the communication system side, terminal side, network device side, etc., which will not be repeated here.

[0212] Figure 6 is a flowchart illustrating a codebook determination method according to an embodiment of the present disclosure. As shown in Figure 6, the present disclosure relates to a codebook determination method, which includes:

[0213] Step S6101: The network device configures a mask pattern for the terminal.

[0214] In some embodiments, when the antenna array is a ULA, the following scheme is performed.

[0215] ●Optionally, a mask pattern for the antenna array is predefined. The design principle of the mask pattern is: if the number of inactive antennas is 2k, where k is a non-negative integer, then the antennas near the center of the antenna array will not be activated.

[0216] ●Optionally, the BS can configure the number M of mask patterns and the corresponding mask patterns, and can also set a default mask pattern.

[0217] ●Optionally, the UE determines the corresponding M codebooks based on the M mask patterns configured by the BS.

[0218] ● Optionally, the UE selects the optimal codeword and its corresponding codebook index from a set of M codebooks. The optimal codeword is reported via the PMI, and the codebook index is reported via a newly defined bit field.

[0219] ●Optionally, the BS determines the mask pattern and codewords for its transmission channel and signal based on feedback from the UE.

[0220] For example, assuming there are 8 antennas, the mask pattern of the antenna array is predefined. The mask pattern design diagram of the antenna array is shown in Figure 2D, with a total of 4 mask patterns.

[0221] Optionally, the BS configures four mask patterns and their corresponding mask patterns, and can set a default mask pattern, such as mask pattern 1, which activates all antennas. The UE determines four codebooks based on the four mask patterns configured by the BS. The UE selects the optimal codeword and its corresponding codebook index from the set of four codebooks. The optimal codeword is reported via PMI, and its corresponding codebook index is reported via a newly defined 2-bit bit field. For example, 00 represents mask pattern 1, 01 represents mask pattern 2, 10 represents mask pattern 3, and 11 represents mask pattern 4, corresponding to antennas 0, 2, 4, and 6 at the center of the antenna array being inactive, respectively. The BS determines the mask pattern and codeword for its transmission channel and signal based on the UE's feedback.

[0222] In some embodiments, when the antenna array is a UPA, the following scheme is performed.

[0223] ● Optionally, two-dimensional mask patterns for the horizontal and vertical antenna arrays can be predefined, or mask patterns for the horizontal and vertical antenna arrays can be predefined separately.

[0224] ●Optionally, the BS can configure the number M of horizontal dimension mask patterns and their corresponding mask patterns, the number N of vertical dimension mask patterns and their corresponding mask patterns, or configure the number K of two-dimensional mask patterns in both the horizontal and vertical dimensions and their corresponding mask patterns, and can also set a default mask pattern.

[0225] ●Optionally, the UE determines the corresponding MN or K codebooks based on the MN or K mask patterns configured by the BS.

[0226] ● Optionally, the UE selects the optimal codeword and its codebook index from a set of MN or K codebooks. The optimal codeword is reported via PMI, and the codebook index is reported via a newly defined bit field.

[0227] ■ Independent Reporting: Independently report the mask patterns in both the horizontal and vertical dimensions.

[0228] ■ Joint Reporting: Jointly report two-dimensional mask patterns in both horizontal and vertical dimensions.

[0229] ●Optionally, the BS determines the mask pattern and codewords for its transmission channel and signal based on feedback from the UE.

[0230] For example, assuming the number of antennas is 8*8, predefine two-dimensional mask patterns for the horizontal and vertical antenna arrays (e.g., the 6 mask patterns shown in Figure 2B), or predefine mask patterns for the horizontal and vertical antenna arrays respectively (e.g., using 2D mask patterns, the combination of horizontal mask pattern 2 and vertical mask pattern 1 is mask pattern 2 in Figure 2B).

[0231] For example, the BS configures four mask patterns and their corresponding patterns, and can set a default mask pattern, such as mask pattern 1, which activates all antennas. The UE determines four codebooks based on the four mask patterns configured by the BS. The UE selects the optimal codeword and its corresponding codebook index from the four codebooks. The optimal codeword is reported via PMI, and its codebook index is reported via a newly defined bit field. The BS determines the mask pattern and codeword for its transmission channel and signal based on the UE's feedback.

[0232] Independent Reporting: Independently report the mask patterns for the horizontal and vertical dimensions. The first bit field is 1 bit corresponding to the horizontal dimension, and the second bit field is 1 bit corresponding to the vertical dimension. For example, 0 represents mask pattern 1, and 1 represents mask pattern 2.

[0233] Joint Reporting: Jointly report the two-dimensional mask patterns in both the horizontal and vertical dimensions. This bit field is 2 bits, for example, 00 represents mask pattern 1, 01 represents mask pattern 2, 10 represents mask pattern 3, and 11 represents mask pattern 4.

[0234] For example, assuming the number of antennas is 8*5, predefine two-dimensional mask patterns for the horizontal and vertical antenna arrays (e.g., the four mask patterns in Figure 2C), or predefine mask patterns for the horizontal and vertical antenna arrays respectively.

[0235] It should be noted that the precoding vector corresponding to the location of an inactive antenna in the mask pattern has an element of 0.

[0236] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0237] This disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0238] 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.

[0239] 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).

[0240] Figure 7A is a schematic diagram of the codebook determination device proposed in an embodiment of this disclosure. As shown in Figure 7A, the codebook determination device 7100 may include at least one of a transceiver module 7101 and a processing module 7102. The transceiver module 7101 is used to receive at least one mask pattern sent by a network device; the processing module 7102 is used to generate at least one first codebook based on the at least one mask pattern, wherein the first codebook is used to pre-encode data. Optionally, the transceiver module 7101 is used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal in any of the above methods (e.g., step S2101, but not limited thereto), which will not be described in detail here. Optionally, the processing module is used to perform at least one of the other steps performed by the terminal in any of the above methods, which will not be described in detail here.

[0241] Optionally, the processing module 7102 is used to perform at least one of the communication steps, such as the processing performed by the terminal in any of the above methods, which will not be described in detail here.

[0242] Figure 7B is a schematic diagram of the codebook determination device proposed in an embodiment of this disclosure. As shown in Figure 7B, the codebook determination device 7200 may include at least one of a transceiver module 7201 and a processing module 7202. The transceiver module 7201 is used to send at least one mask pattern to the terminal; the at least one mask pattern is used to generate at least one first codebook, which is used to pre-encode data. Optionally, the transceiver module 7201 is used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal in any of the above methods (e.g., step S2101, but not limited thereto), which will not be described in detail here. Optionally, the processing module is used to perform at least one of the other steps performed by the terminal in any of the above methods, which will not be described in detail here.

[0243] Optionally, the processing module 7202 is used to perform at least one of the communication steps, such as the processing performed by the terminal in any of the above methods, which will not be described in detail here.

[0244] 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.

[0245] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module. Optionally, the processing module may be interchangeable with a processor.

[0246] Figure 8A is a schematic diagram of the structure of the communication device 8100 proposed in an embodiment of this disclosure. The communication device 8100 can be a network device (e.g., access network device, core network device, etc.), a terminal, a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 8100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0247] As shown in Figure 8A, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control codebook determination devices (e.g., base stations, baseband chips, terminals, terminal chips, DUs or CUs, etc.), execute programs, and process program data. The communication device 8100 is used to execute any of the above methods.

[0248] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 may also be located outside the communication device 8100.

[0249] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceivers 8103 perform at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2102, S2103, S2104, but not limited thereto).

[0250] In some embodiments, a transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.

[0251] In some embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuit 8104 is connected to the memory 8102, and the interface circuit 8104 can be used to receive signals from the memory 8102 or other devices, and can be used to send signals to the memory 8102 or other devices. For example, the interface circuit 8104 can read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0252] The communication device 8100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 8100 described in this disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG8A. The communication device may be a standalone device or may be part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal, smart terminal, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (8) others, etc.

[0253] Figure 8B is a schematic diagram of the structure of chip 8200 according to an embodiment of this disclosure. For cases where the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of chip 8200 shown in Figure 8B, but it is not limited thereto.

[0254] Chip 8200 includes one or more processors 8201, which are used to perform any of the above methods.

[0255] In some embodiments, chip 8200 further includes one or more interface circuits 8202. Optionally, the interface circuit 8202 is connected to memory 8203, and the interface circuit 8202 can be used to receive signals from memory 8203 or other devices, and the interface circuit 8202 can be used to send signals to memory 8203 or other devices. For example, the interface circuit 8202 can read instructions stored in memory 8203 and send the instructions to processor 8201.

[0256] In some embodiments, the interface circuit 8202 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 8201 performs at least one of the other steps.

[0257] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.

[0258] In some embodiments, chip 8200 further includes one or more memories 8203 for storing instructions. Optionally, all or part of the memories 8203 may be located outside of chip 8200.

[0259] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device 8100, cause the communication device 8100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0260] This disclosure also provides a program product that, when executed by the communication device 8100, causes the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0261] 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. A codebook determination method, characterized by, The method is performed by a terminal, and the method comprises: receiving at least one mask pattern sent by a network device; generating at least one first codebook based on the at least one mask pattern, the first codebook being used for precoding data.

2. The method of claim 1, wherein, The generation of the at least one codebook based on the at least one mask pattern comprises: for each mask pattern in the at least one mask pattern, determining a first codebook based on a product of the mask pattern and each layer vector of a code word included in a second codebook.

3. The method of claim 2, wherein, The second codebook is determined based on at least one of an angle domain parameter, a distance domain parameter or an antenna array parameter.

4. The method of claim 3, wherein, The second codebook is determined based on at least one of a quantized angle domain parameter, a quantized distance domain parameter or an antenna array parameter.

5. The method according to any one of claims 1 to 4, characterized in that, The mask pattern corresponds to an antenna array of the network device, an antenna array element corresponding to a first value of the mask pattern is in an active state, and an antenna array element corresponding to a second value of the mask pattern is in an inactive state.

6. The method according to any one of claims 1 to 5, characterized in that, The antenna array of the network device is a uniform linear array (ULA), and the mask pattern is a first column vector, the first column vector being used for indicating an antenna array element in a horizontal dimension or an antenna array element in a vertical dimension of the antenna array.

7. The method according to any one of claims 1 to 5, characterized in that, The antenna array of the network device is a uniform planar array (UPA), and the mask pattern is a second column vector, the second column vector being determined based on a third column vector and a fourth column vector, the third column vector being used for indicating an antenna array element in a horizontal dimension of the antenna array, and the fourth column vector being used for indicating an antenna array element in a vertical dimension of the antenna array.

8. The method according to any one of claims 1 to 7, characterized in that, The method further comprises: selecting a first code word for precoding from the at least one first codebook, the first code word belonging to one of the at least one first codebook.

9. The method of claim 8, wherein, The method further comprises: sending indication information, the indication information being used for indicating a mask pattern used for generating the first codebook to which the first code word belongs.

10. The method of claim 9, wherein, The antenna array is a uniform planar array (UPA), and the indication information indicates a mask pattern in a vertical dimension and a mask pattern in a horizontal dimension; or, The indication information comprises a first information field and a second information field, the first information field being used for indicating a mask pattern in a vertical dimension, and the second information field being used for indicating a mask pattern in a horizontal dimension.

11. The method of claim 9, wherein, The antenna array is a uniform linear array (ULA), and the indication information indicates a mask pattern in a vertical dimension or a mask pattern in a horizontal dimension.

12. A codebook determination method, characterized by, The method is performed by a network device, and the method comprises: sending at least one mask pattern to a terminal; the at least one mask pattern being used for generating at least one first codebook, the first codebook being used for precoding data.

13. The method of claim 12, wherein, The first codebook is determined based on a product of each mask pattern in the at least one mask pattern and each layer vector of a code word included in a second codebook.

14. The method of claim 13, wherein, The second codebook is determined based on at least one of an angle domain parameter, a distance domain parameter or an antenna array parameter.

15. The method of claim 14, wherein, The second codebook is determined based on at least one of a quantized angle domain parameter, a quantized distance domain parameter or an antenna array parameter.

16. The method according to any one of claims 12 to 15, characterized in that, The mask pattern corresponds to an antenna array of the network device, an antenna array element corresponding to a first value of the mask pattern is in an active state, and an antenna array element corresponding to a second value of the mask pattern is in an inactive state.

17. The method of any one of claims 12 to 16, wherein, The antenna array of the network device is a uniform linear array (ULA), and the mask pattern is a first column vector, the first column vector being used to indicate an antenna array element in a horizontal dimension or an antenna array element in a vertical dimension of the antenna array.

18. The method of any one of claims 12 to 16, wherein, The antenna array of the network device is a uniform planar array (UPA), and the mask pattern is a second column vector, the second column vector being determined based on a third column vector and a fourth column vector, the third column vector being used to indicate an antenna array element in a horizontal dimension of the antenna array, and the fourth column vector being used to indicate an antenna array element in a vertical dimension of the antenna array.

19. The method of any one of claims 12 to 18, wherein, The method further includes: selecting a first code word for precoding from the at least one first codebook, the first code word belonging to one of the at least one first codebook.

20. The method of claim 19, wherein, The method further includes: receiving indication information, the indication information being used to indicate a mask pattern used to generate a first codebook to which the first code word belongs.

21. The method of claim 20, wherein, The antenna array is a uniform planar array (UPA), and the indication information indicates a mask pattern in a vertical dimension and a mask pattern in a horizontal dimension; or The indication information includes a first information field and a second information field, the first information field being used to indicate a mask pattern in a vertical dimension, and the second information field being used to indicate a mask pattern in a horizontal dimension.

22. A codebook determination apparatus, characterized by comprising: The apparatus includes: a transceiver module configured to receive at least one mask pattern sent by a network device; a processing module configured to generate at least one first codebook based on the at least one mask pattern, the first codebook being used to precode data.

23. A codebook determination apparatus, characterized by, The apparatus includes: a transceiver module configured to send at least one mask pattern to a terminal; the at least one mask pattern being used to generate at least one first codebook, the first codebook being used to precode data.

24. A terminal, characterized by The terminal includes: one or more processors; wherein the processor is configured to perform the codebook determination method of any one of claims 1 to 11.

25. A network device, comprising: The network device includes: one or more processors; wherein the processor is configured to perform the codebook determination method of any one of claims 12 to 21.

26. A communication system, characterized by The communication system includes a terminal and a network device, wherein the terminal is configured to perform the codebook determination method of any one of claims 1 to 11, and the network device is configured to perform the codebook determination method of any one of claims 12 to 21.

27. A storage medium, the storage medium storing instructions, wherein, The instructions, when executed on a communication device, cause the communication device to perform the codebook determination method of any one of claims 1 to 21.

28. A computer program product, characterised in that, The computer program product, when executed on a communication device, causes the communication device to perform the codebook determination method of any one of claims 1 to 21.

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