Beam measurement method and device for three-dimensional antenna array

Abstract

The invention discloses a beam measurement method and device for a three-dimensional antenna array. The method comprises the following steps: sending reference signals corresponding to N reference signal resources; the reference signal is used for beam measurement; the N reference signal resources are in one-to-one correspondence with the N beams; n is an integer greater than 1; first indication information is received, the first indication information is used for indicating first reference signal resources, and the N reference signal resources comprise the first reference signal resources; sending reference signals corresponding to the M reference signal resources based on the first indication information; the M reference signal resources are in one-to-one correspondence with the M beams; m is a positive integer; and receiving second indication information, the second indication information being used for indicating a second reference signal resource, the second reference signal resource being one of the first reference signal resource and the M reference signal resources. In the method, the first indication information can be used for the second round of beam measurement, reference signal resources for beam measurement of the three-dimensional antenna array can be reduced, and the measurement overhead is reduced.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communication technology, and in particular to a beam measurement method and device for a three-dimensional antenna array. Background Art

[0002] In order to reduce the hardware complexity, cost overhead, and power consumption of the MIMO system and improve the cost performance of the system, the MIMO system often uses a hybrid beamforming (HBF) method that combines analog beam domain and digital port. Under the HBF method, an RF channel can drive multiple antenna units through a phase shifting network. The phase shifting network is composed of multiple analog phase shifters. The signal of each transmitting antenna unit changes its signal through the analog phase shifter. When the HBF method is used for link transmission, in order to obtain the best transmission performance, the full-space analog beam polling method is usually used for beam measurement. When there are many beams to be measured, more reference signal resources are required for beam measurement, and the measurement overhead is large.

[0003] In order to improve the system capacity and spectrum efficiency of the MIMO system, the MIMO system can also use a three-dimensional antenna array, wherein the three-dimensional antenna array refers to a three-dimensional array formed by arranging antenna units outside the plane in addition to arranging antenna units on the plane. The three-dimensional antenna array can deploy more antenna units than the two-dimensional antenna array under the same antenna array area. The current beam measurement methods (such as the above-mentioned full-space simulated beam polling) are all applied to planar two-dimensional antenna arrays. If the current beam measurement method is used to perform beam measurement of a three-dimensional antenna array, a large number of reference signal resources are required for beam measurement, and the measurement overhead is large. Summary of the invention

[0004] The embodiments of the present application disclose a beam measurement method and device for a stereo antenna array, which can reduce reference signal resources used for beam measurement of the stereo antenna array and reduce measurement overhead.

[0005] The present application is introduced below from different aspects. It should be understood that the implementation methods and beneficial effects of the following different aspects can be referenced to each other.

[0006] In a first aspect, the present application discloses a beam measurement method for a three-dimensional antenna array, which can be executed by a network device or a module (for example, a chip) in the network device, and the method may include: sending reference signals corresponding to N reference signal resources; the reference signal is used for beam measurement; the N reference signal resources correspond one-to-one to the N beams; N is an integer greater than 1; receiving first indication information, the first indication information is used to indicate a first reference signal resource, and the N reference signal resources include the first reference signal resource; based on the first indication information, sending reference signals corresponding to M reference signal resources; the M reference signal resources correspond one-to-one to the M beams; M is a positive integer; receiving second indication information, the second indication information is used to indicate a second reference signal resource, and the second reference signal resource is one of the first reference signal resource and the M reference signal resources.

[0007] In the embodiment of the present application, the reference signals corresponding to the M reference signal resources may be first sent based on the first indication information determined by the first round of beam measurement, and then the second reference signal resource may be determined from the first reference signal resource and the M reference signal resources. In this method, since the first indication information is the measurement result of the first round of beam measurement, the M beams of the second round of beam measurement are determined based on the measurement result of the first round of beam measurement, which can reduce the number of reference signals used in the beam measurement of the stereo antenna array and reduce the overhead of the reference signal resources.

[0008] With reference to the first aspect, in a possible implementation manner, the N reference signal resources and the M reference signal resources are different reference signal resources.

[0009] In combination with the first aspect, in a possible implementation manner, the first characteristics of the N beams are the same; the second characteristics of the N beams are different; the first characteristics of the M beams are different; and the second characteristics of the M beams are the same.

[0010] In an embodiment of the present application, since the beam measurement is divided into two rounds, the characteristics of one dimension of the beam (such as the first characteristic) can be measured in the first round, and the characteristics of another dimension of the beam (such as the second characteristic) can be measured in the second round of beam measurement. Then, the first indication information can indicate the characteristic result of a certain dimension of the beam measured in the first round. Then, using the first indication information for selecting the beam in the second round of beam measurement can reduce the number of beams for beam measurement, that is, reduce the overhead of reference signal resources used for beam measurement.

[0011] In a possible implementation manner, the second characteristic of the M beams is one of the second characteristics of the N beams.

[0012] In an embodiment of the present application, the second characteristic of the beam corresponding to the first reference signal resource is one of the second characteristics of N beams, that is, a second characteristic is determined through the first round of measurement of the N beams, namely, the second characteristic corresponding to the first reference signal resource; then, in the second round of measurement, it is only necessary to measure the beam that is different from the first characteristic of the beam corresponding to the first reference signal resource and has the same second characteristic as the beam corresponding to the first reference signal resource, and there is no need to measure the beam that does not have the second characteristic, which can reduce the overhead of reference signal resources used for beam measurement.

[0013] In combination with the first aspect, in a possible implementation manner, the first feature is beam pointing, and the second feature is beam shape.

[0014] In the embodiment of the present application, since the stereo antenna array can bring different dimensional features to the beam, namely, beam pointing and beam shape; the beam measurement is divided into two rounds, then in the first round, the feature of one dimension of the beam (namely, beam pointing) can be measured to determine the target beam pointing; in the second round, the target beam pointing is fixed, and the feature of another dimension of the beam (namely, beam shape) is measured to determine the target beam shape. This method can make it unnecessary to measure beams with non-target beam pointing and different beam shapes in the second round of measurement, which can reduce the number of reference signals measured and reduce the overhead of reference signal resources.

[0015] In combination with the first aspect, in a possible implementation manner, the first feature is a beam shape, and the second feature is a beam pointing direction.

[0016] In the embodiment of the present application, since the stereo antenna array can bring different dimensional features to the beam, namely, beam pointing and beam shape; the beam measurement is divided into two rounds, the feature of one dimension of the beam (namely, beam shape) can be measured in the first round to determine the target beam shape; and then in the second round, the target beam shape is fixed, and the feature of another dimension of the beam (namely, beam pointing) is measured to determine the target beam pointing. This method can make it unnecessary to measure beams with non-target beam shapes and different beam pointings in the second round of measurement, which can reduce the number of reference signals measured and reduce the overhead of reference signal resources.

[0017] In combination with the first aspect, in a possible implementation manner, the first reference signal resource is determined based on signal qualities of reference signals corresponding to the N reference signal resources.

[0018] Exemplarily, the signal quality may be indicators such as reference signal received power (RSRP), reference signal energy, and signal-to-noise ratio.

[0019] In combination with the first aspect, in a possible implementation manner, the second reference signal resource is determined based on signal qualities of reference signals corresponding to the M reference signal resources and a reference signal corresponding to the first reference signal resource.

[0020] In combination with the first aspect, in a possible implementation, the reference signal is any one of a channel state information reference signal CSI-RS, a synchronization signal, and a physical broadcast channel block SSB.

[0021] In combination with the first aspect, in a possible implementation manner, the first indication information is a resource number of a first reference signal resource; and the second indication information is a resource number of a second reference signal resource.

[0022] In a second aspect, the present application discloses a beam measurement method for a stereo antenna array, which can be performed by a terminal device or a module (e.g., a chip) in the terminal device. The method may include: a beam measurement method for a stereo antenna array, characterized in that the method includes:

[0023] receiving reference signals corresponding to N reference signal resources; the reference signals are used for beam measurement; the N reference signal resources correspond one to one to the N beams; N is an integer greater than 1;

[0024] Sending first indication information, where the first indication information is used to indicate a first reference signal resource, and the N reference signal resources include the first reference signal resource;

[0025] receiving reference signals corresponding to M reference signal resources; the M reference signal resources correspond one-to-one to the M beams; M is a positive integer;

[0026] Second indication information is sent, where the second indication information is used to indicate a second reference signal resource, where the second reference signal resource is one of the first reference signal resource and the M reference signal resources.

[0027] In combination with the second aspect, in a possible implementation manner, the N reference signal resources and the M reference signal resources are different reference signal resources.

[0028] In combination with the second aspect, in a possible implementation manner, the first characteristics of the N beams are the same; the second characteristics of the N beams are different; the first characteristics of the M beams are different; and the second characteristics of the M beams are the same.

[0029] In combination with the second aspect, in a possible implementation manner, the first feature is beam pointing, and the second feature is beam shape.

[0030] In combination with the second aspect, in a possible implementation manner, the first feature is a beam shape, and the second feature is a beam pointing direction.

[0031] In combination with the second aspect, in a possible implementation manner, the first reference signal resource is determined based on signal qualities of reference signals corresponding to the N reference signal resources.

[0032] In combination with the second aspect, in a possible implementation manner, the second reference signal resource is determined based on signal qualities of a reference signal corresponding to the M reference signal resources and a reference signal corresponding to the first reference signal resource.

[0033] In combination with the second aspect, in a possible implementation, the reference signal is any one of a channel state information reference signal CSI-RS, a synchronization signal, and a physical broadcast channel block SSB.

[0034] In combination with the second aspect, in a possible implementation manner, the first indication information is a resource number of a first reference signal resource; and the second indication information is a resource number of a second reference signal resource.

[0035] In a third aspect, the present application provides a communication device, which may be a network device or a chip / circuit therein. The communication device is used to execute the method in the first aspect or any possible implementation of the first aspect. The communication device includes a unit having a function of executing the method in the first aspect or any possible implementation of the first aspect.

[0036] In a fourth aspect, the present application provides a communication device, which may be a terminal device or a chip / circuit therein. The communication device is used to execute the method in the second aspect or any possible implementation of the second aspect. The communication device includes a unit having a method for executing the second aspect or any possible implementation of the second aspect.

[0037] In the third aspect or the fourth aspect, the communication device may include a receiving unit and a sending unit. For a specific description of the receiving unit and the sending unit, reference may also be made to the device embodiment shown below. The beneficial effects of the third aspect to the fourth aspect may refer to the relevant description of the first aspect to the second aspect, which will not be repeated here.

[0038] In a fifth aspect, the present application provides a communication device, which may include a processor and an interface circuit, and the processor is connected to the interface circuit. Wherein, the interface circuit is used to interact (or send and receive or input and output) information or data, and the processor is used to run program instructions so that the communication device executes the method described in any possible implementation of the first aspect, the second aspect, or any aspect thereof. Wherein, the interface circuit may be a communication interface, or a transceiver. The transceiver may be a radio frequency module in a communication device, or a combination of a radio frequency module and an antenna, or an input and output interface of a chip or circuit.

[0039] In a sixth aspect, the present application provides a readable storage medium having program instructions stored thereon, which, when executed on a computer, enables the computer to execute the method described in any possible implementation of the first aspect, the second aspect, or any of the aspects therebetween.

[0040] In a seventh aspect, the present application provides a program product comprising program instructions, which, when executed, enables the method described in the first aspect, the second aspect, or any possible implementation of any of the aspects to be executed.

[0041] In an eighth aspect, the present application provides a device, which can be implemented in the form of a chip or in the form of a device, and the device includes a processor. The processor is used to read and execute a program stored in a memory to execute the information interaction method provided by one or more of the above-mentioned first aspect or the above-mentioned second aspect, or one or more of any possible implementation methods of any aspect. Optionally, the device also includes a memory, which is connected to the processor through a circuit. Further optionally, the device also includes a communication interface, and the processor is connected to the communication interface. The communication interface is used to receive information to be processed, the processor obtains the information from the communication interface, processes the information, and outputs the processing results through the communication interface. The communication interface can be an input and output interface.

[0042] In a possible implementation, the processor and memory may be physically independent units, or the memory may be integrated with the processor.

[0043] In a ninth aspect, the present application provides a communication system, which includes a network device and a terminal device; the network device is used to execute the method described in the above-mentioned first aspect or any possible implementation of the first aspect, and the terminal device is used to execute the method described in the above-mentioned second aspect or any possible implementation of the second aspect.

[0044] The technical effects achieved in the above-mentioned aspects can be referred to each other or to the beneficial effects in the method embodiments shown below, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a schematic diagram of a HBF method provided in an embodiment of the present application;

[0046] Figure 2 is a schematic diagram of a beam measurement provided in an embodiment of the present application;

[0047] Figure 3 is a schematic diagram of a three-dimensional antenna array provided in an embodiment of the present application;

[0048] Figure 4A is a schematic diagram of a network architecture of a communication system provided in an embodiment of the present application;

[0049] Figure 4B is a schematic diagram of a network architecture of another communication system provided in an embodiment of the present application;

[0050] Figure 5 It is a flow chart of a beam measurement method of a three-dimensional antenna array provided in an embodiment of the present application;

[0051] Figure 6 It is a flowchart of another beam measurement method of a three-dimensional antenna array provided in an embodiment of the present application;

[0052] Figure 7 It is a flowchart of another beam measurement method of a three-dimensional antenna array provided in an embodiment of the present application;

[0053] Figure 8 is a schematic diagram of a structure of a communication device provided in an embodiment of the present application;

[0054] Fig. 9 is another structural schematic diagram of a communication device provided in an embodiment of the present application;

[0055] Fig.10 This is another structural diagram of the communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0057] In the description of the present application, the words "first", "second", etc. are only used to distinguish different objects, and do not limit the quantity and execution order, and the words "first", "second", etc. do not necessarily limit them to be different. For example, the first information and the second information, the first PDC type and the second PDC type, etc. are only used to distinguish different information, and do not limit their order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0058] In the description of this application, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, "at least one (item)", "the following one (item) or more (items)" or similar expressions refer to any combination of these items, including any combination of single items (items) or plural items (items). For example, at least one item (item) of a, b, or c can mean: a, b, c; a and b; a and c; b and c; or a, b and c. Among them, a, b, c can be single or multiple.

[0059] In the description of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described in this application as "exemplary", "for example" or "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary", "for example" or "for example" is intended to present related concepts in a concrete way.

[0060] It can be understood that in the description of this application, "when", "if" and "if" all mean that the device will perform corresponding processing under certain objective circumstances, and do not limit the time, nor do they require that the device must have a judgment action when it is implemented, nor do they mean that there are other limitations. Among them, the device performs corresponding processing under certain objective circumstances, including: the corresponding processing can be performed when the objective situation is met; or the corresponding processing can be performed only when the objective situation and other situations are met.

[0061] The term “simultaneously” in the present application may be understood as at the same time point, within a period of time, or within the same cycle, and may be understood in conjunction with the context.

[0062] Elements used in the singular herein are intended to mean "one or more" rather than "one and only one" unless specifically stated otherwise.

[0063] Additionally, the terms "system" and "network" are often used interchangeably herein.

[0064] It can be understood that in each embodiment of the present application, "A corresponds to B", "A corresponds to B", "B corresponding to A" or similar expressions indicate that B is associated with A, and B can be determined according to A. Determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0065] In order to facilitate understanding of the technical solutions of the embodiments of the present application, a brief introduction to the relevant technologies and terms of the present application is first given.

[0066] 1. Hybrid Beamforming (HBF)

[0067] Figure 1 Schematic diagram of a HBF method provided in an embodiment of the present application. Figure 1 As shown in the figure, under the HBF method, one RF channel can drive multiple antenna units through a phase shifting network. The phase shifting network is composed of multiple analog phase shifters (referred to as phase shifters), and the signal of each transmitting antenna unit changes the phase of its signal through the phase shifter. Compared with the Digital Beamforming (DBF) method, HBF can maintain similar spectral efficiency and can drive a large number of antenna units through a small number of RF channels, thereby reducing the number of RF channels required by the MIMO system, reducing hardware costs, and improving the cost performance of the MIMO system.

[0068] When link transmission is carried out through HBF, in order to obtain the best transmission performance, it is usually necessary to use a beam scanning measurement method to search for the best transmission beam, where the transmission beam refers to the analog beam in HBF. Usually, the base station can perform beam scanning by using different analog beams to send reference signals, and the user equipment (User Equipment, UE) selects the optimal beam to indicate to the base station based on the measurement results. Specifically, the base station can use polling to perform transmission beam measurement. For example, the base station configures M reference signal resources, corresponding to M analog beams, that is, for each reference signal, a different analog beam is used to send the reference signal, where M is an integer greater than 1; at the same time, the base station notifies the UE that there are M reference signals corresponding to transmission beam measurements in different directions. The UE uses the same receiving beam to receive and measure the reference signals corresponding to all M reference signal resources. The UE measures and compares the quality of the M beams and selects the most suitable transmission beam to report to the base station.

[0069] Figure 2 It is a schematic diagram of a beam measurement provided in an embodiment of the present application. Figure 2 The example shows that the base station sends four simulated beams to the UE, where the simulated beams are represented by gray ellipses; then, after receiving the four simulated beams, the UE performs beam measurement, determines the optimal beam, and sends indication information indicating the optimal beam to the base station. It can be seen that if the above-mentioned full-space simulated beam polling method is used to perform simulated beam measurement, when there are many simulated beams to be measured, the reference signal resources required for beam measurement and the measurement overhead are large.

[0070] In this application, the simulated beam in HBF may also be referred to as beam.

[0071] 2. Stereo Antenna Array

[0072] The three-dimensional antenna array in this application refers to an antenna array in which antenna units are arranged outside the plane in addition to the antenna units deployed on the plane. The three-dimensional antenna array includes K layers of antenna units arranged along a first direction, and the planes where the antenna units of each layer in the K layers of antenna units are located are different planes. The number of antenna units in at least one layer of antenna units in the K layers of antenna units is greater than 2, and K is an integer greater than 1. Among them, the first direction can also be called the depth direction. It should be understood that the three-dimensional antenna array can also be called a three-dimensional array or a three-dimensional antenna array, etc., and this application does not limit the name of the three-dimensional antenna array.

[0073] Next, through Figure 3 A three-dimensional antenna array is introduced by way of example.

[0074] like Figure 3 As shown, the three-dimensional antenna array includes K layers of antenna units arranged along a first direction, and each layer of antenna units includes Y rows and X columns of antenna units, wherein Y and X are both integers not less than 2, and K is an integer greater than 1; the number of antenna units in different layers of the K layers of antenna units may be the same or different; the present application does not limit the type of antenna units of the three-dimensional antenna array, Figure 3 The antenna units are represented by × in the figure for the convenience of description only.

[0075] In this application, the first direction may be referred to as a depth dimension, the arrangement direction of the Y rows may be referred to as a vertical dimension, and the arrangement direction of the X columns may be referred to as a horizontal dimension. Figure 3 As shown, the three-dimensional antenna array arranges X columns of antenna units in the horizontal dimension, Y rows of antenna units in the horizontal dimension, and K layers of antenna units in the depth dimension, forming a three-dimensional array with X*Y*K antenna units.

[0076] It should be understood that Figure 3 It is only an example of a specific form of a three-dimensional array and does not constitute a limitation on the three-dimensional array of the present application.

[0077] A three-dimensional antenna array can deploy more antenna units than a two-dimensional antenna array under the same antenna array area. Current beam measurement methods (such as the above-mentioned full-space simulated beam polling) are all applied to planar two-dimensional antenna arrays. If the current beam measurement method is used to perform beam measurement of a three-dimensional antenna array, more reference signal resources are required for beam measurement, and the measurement overhead is relatively large.

[0078] In view of this, the present application provides a beam measurement method for a stereo antenna array. The method can perform two measurements. The second round of measurement is performed based on the first indication information determined in the first round of measurement, which can reduce the reference signal resources used for beam measurement and reduce measurement overhead.

[0079] The inventor of the present application has found that a three-dimensional antenna array can be used to generate beams with correlations. By using the correlations of the beams, the number of beams to be measured can be reduced, and the reference signal resource overhead can be reduced. It should be noted that the beams of the current two-dimensional antenna array are not correlated, and the measurement of the beams is also performed independently for each beam, the number of beams to be measured is large, and the reference signal resource overhead is large.

[0080] The present application can use HBF technology for a three-dimensional antenna array, that is, under the HBF method, a radio frequency channel can drive multiple antenna units of a three-dimensional antenna array through a phase shifting network. The phase shifting network includes a phase shifter in the depth dimension (referred to as the first phase shifter), and a phase shifter in the horizontal and / or vertical dimension (referred to as the second phase shifter); the first phase shifter connects part or all of the antenna units in at least two layers of antenna units in the three-dimensional antenna array, and the second phase shifter connects part or all of the antenna units in the same layer of antenna units in the three-dimensional antenna array; the value of the first phase shifter affects the shape of the channel-level directional pattern, and the value of the second phase shifter affects the direction of the channel-level directional pattern.

[0081] The present application can also adjust the beam shape of the beam through the first phase shifter, and adjust the beam pointing of the beam through the second phase shifter; the beam shape and beam pointing are used as the characteristics of the beam in two dimensions; since the beam measurement is divided into two rounds, the characteristics of one dimension of the beam (such as the first characteristic) can be measured in the first round, and then the characteristics of another dimension of the beam (such as the second characteristic) can be measured in the second round of beam measurement. Then, the first indication information can indicate the characteristic result of a certain dimension of the beam measured in the first round. Then, using the first indication information for the selection of the beam in the second round of beam measurement can reduce the number of beams for beam measurement, that is, reduce the overhead of reference signal resources used for beam measurement.

[0082] In order to better understand the beam measurement method and related devices of a three-dimensional antenna array proposed in the present application, the network architecture applied in the embodiment of the present application is first described below.

[0083] The technical solution of the embodiment of the present application can be applied to various communication systems, which include at least one communication device including a three-dimensional antenna array.

[0084] Exemplarily, the communication system can be: a global system for mobile communications (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) system, a general packet radio service (GPRS), an LTE system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, a universal mobile telecommunications system (UMTS) system, an enhanced data rate for GSM evolution (EDGE) system, and a worldwide interoperability for microwave access (WiMAX) system. The technical solution of the embodiment of the present application can also be applied to other communication systems, such as a public land mobile network (PLMN) system, an advanced long-term evolution (LTE advanced, LTE-A) system, a fifth generation mobile communication (5G) system, a new radio (NR) system, a machine to machine communication (M2M) system, or other communication systems that will evolve in the future, etc., which are not limited by the embodiment of the present application. The technical solution provided by the embodiment of the present application can also be applied to other communication systems, in which there are entities that can send control information and send (and / or receive) transmission blocks, and in which there are other entities that can receive control information and receive (and / or send) transmission blocks.

[0085] See also Figure 4A , Figure 4A It is a schematic diagram of a network architecture of a communication system provided in an embodiment of the present application.

[0086] like Figure 4A As shown, the network device and the terminal devices 1 to 6 form a communication system, wherein the network device includes a three-dimensional antenna array.

[0087] In this communication system, the network device sends downlink data to one or more terminal devices among terminal devices 1 to 6, and terminal devices 1 to 6 can also send uplink data to the network device. In addition, aggregate transmission can be performed between terminal devices, for example Figure 4A Terminal devices 4 to 6 shown in FIG. Figure 4A At least one of the network device and the terminal device includes the antenna system provided by the present application.

[0088] The terminal device in the embodiment of the present application is an entity on the user side for receiving or transmitting signals, such as user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolved public land mobile communication network (PLMN), etc., and the embodiment of the present application is not limited to this.

[0089] As an example but not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and fully or partially independent of smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.

[0090] In addition, in the embodiment of the present application, the terminal device can also be a terminal in the Internet of Things (IoT) system. IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network of human-machine interconnection and object-to-object interconnection. In the embodiment of the present application, IOT technology can achieve massive connections, deep coverage, and terminal power saving through, for example, narrow band (NB) technology.

[0091] In addition, in the embodiments of the present application, the terminal device may also include sensors such as smart printers, train detectors, gas stations, etc., and its main functions include collecting data (partial terminal devices), receiving control information and downlink data from network devices, and sending electromagnetic waves to transmit uplink data to network devices.

[0092] The network device in the embodiment of the present application is an entity for transmitting or receiving signals, and can be a device for communicating with a terminal device. The network device can be a base station (base transceiver station, BTS) in a global system for mobile communications (GSM) system or code division multiple access (CDMA), or a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (evolved NodeB, eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay station, access point, vehicle-mounted device, wearable device, and a network device in a 5G network or a network device in a future evolved PLMN network, etc., and the embodiments of the present application are not limited.

[0093] The network device in the embodiment of the present application may be a device in a wireless network, such as a radio access network (RAN) node that connects a terminal device to a wireless network. At present, some examples of RAN nodes are: base station, next-generation base station gNB, transmission reception point (TRP), evolved Node B (evolved Node B, eNB), home base station, baseband unit (BBU), or access point (AP) in a WiFi system. In a network structure, the network device may include a centralized unit (CU) node, a distributed unit (DU) node, or a RAN device including a CU node and a DU node.

[0094] See also Figure 4B , Figure 4B 1 is a schematic diagram of a network architecture of another communication system provided in an embodiment of the present application. The communication system includes a base station and a user equipment (UE), wherein the base station includes a three-dimensional antenna array.

[0095] Among them, the base station and the UE may both include a radio resource control (Radio Resource Control, RRC) signaling interaction module, a media access control (Media Access Control, MAC) signaling interaction module and a physical layer (Physical Layer, PHY) signaling and data interaction module, wherein the RRC signaling interaction module is a module used by the base station and the UE to send and receive RRC signaling; the MAC signaling interaction module is a module used by the base station and the UE to send and receive Media Access Control-Control Element (Media Access Control-Control Element, MAC-CE) signaling; the PHY signaling and data interaction module is a module used by the base station and the UE to send and receive uplink / downlink control signaling and uplink / downlink data, and can be specifically used to send and receive downlink control signaling through a physical downlink control channel (Physical Downlink Control Channel, PDCCH), send and receive the above-mentioned line control signaling through a physical uplink control channel (Physical Uplink Control Channel, PUCCH), send and receive downlink data through a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH), and send and receive downlink data through a physical uplink shared channel (Physical Uplink Shared Channel, PDSCH). Uplink Shared Channel, PUSCH) sends and receives uplink data.

[0096] In an embodiment of the present application, a terminal device or a network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also called main memory). The operating system can be any one or more computer operating systems that implement business processing through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer includes applications such as a browser, an address book, a word processing software, and an instant messaging software. In addition, the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided in the embodiment of the present application, as long as it can communicate according to the method provided in the embodiment of the present application by running a program that records the code of the method provided in the embodiment of the present application, for example, the execution subject of the method provided in the embodiment of the present application can be a terminal device or a network device, or a functional module in a terminal device or a network device that can call a program and execute a program.

[0097] In addition, various aspects or features of the present application can be implemented as methods, devices or products using standard programming and / or engineering techniques. The term "product" used in this application covers computer programs that can be accessed from any computer-readable device, carrier or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks or tapes, etc.), optical disks (e.g., compact discs (CDs), digital versatile discs (DVDs), etc.), smart cards and flash memory devices (e.g., erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.). In addition, the various storage media described herein may represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing and / or carrying instructions and / or data.

[0098] It should be noted that Figure 4A The number and type of terminal devices included in the network architecture shown are only examples, and the embodiments of the present application are not limited thereto. For example, more or fewer terminal devices that communicate with the network device may also be included, but for the sake of simplicity, they are not described one by one in the drawings. Figure 4A In the network architecture shown, although network devices and terminal devices are shown, the application scenario may not be limited to network devices and terminal devices. For example, it may also include core network nodes or devices for carrying virtualized network functions, etc. These are obvious to those skilled in the art and will not be elaborated here.

[0099] In combination with the above network architecture, a beam measurement method for a three-dimensional antenna array provided in an embodiment of the present application is described below.

[0100] See also Figure 5 , Figure 5 It is a flow chart of a beam measurement method of a stereo antenna array provided in an embodiment of the present application. The functions performed by the terminal device in the embodiment of the present application can also be performed by a module (e.g., a chip) in the terminal device, and the functions performed by the network device in the present application can also be performed by a module (e.g., a chip) in the network device.

[0101] like Figure 5 As shown, the beam measurement method of the three-dimensional antenna array may include the following steps:

[0102] Step S501: The network device sends a reference signal corresponding to N reference signal resources to the terminal device; the reference signal is used for beam measurement; the N reference signal resources correspond one-to-one to the N beams; N is an integer greater than 1.

[0103] Correspondingly, the terminal device receives reference signals corresponding to N reference signal resources from the network device.

[0104] In one implementation, the first characteristics of the N beams are the same, and the second characteristics of the N beams are different. For example, the first characteristic is beam pointing, and the second characteristic is beam shape; for another example, the first characteristic is beam shape, and the second characteristic is beam pointing.

[0105] Exemplarily, the reference signal may be any one of a channel state information reference signal (CSI-RS), a synchronization signal and a physical broadcast channel block (SSB).

[0106] Step S502: the terminal device sends first indication information to the network device, where the first indication information is used to indicate a first reference signal resource, and the N reference signal resources include the first reference signal resource.

[0107] Correspondingly, the network device receives the first indication information from the terminal device.

[0108] Optionally, the first reference signal resource can be determined based on the signal quality of the reference signal corresponding to the N reference signal resources. For example, the terminal device receives the reference signals corresponding to the N reference signal resources respectively, and determines the reference signal resource of a reference signal with the best signal quality among the N reference signals as the first reference signal resource. For example, the terminal device can determine the corresponding indicator for measuring signal quality based on the received reference signal, such as reference signal received power (RSRP), signal-to-noise ratio (SNR), etc., and select the reference signal resource corresponding to the reference signal with the strongest RSRP or the highest SNR among the N reference signals as the first reference signal resource. The embodiment of the present application does not limit the method for performing beam measurement and determining the first reference signal resource for the terminal device.

[0109] Exemplarily, the first indication information may be a resource number of the first reference signal resource.

[0110] Step S503: the network device sends a reference signal corresponding to M reference signal resources based on the first indication information; the M reference signal resources correspond one-to-one to the M beams; and M is a positive integer.

[0111] Correspondingly, the terminal device receives the reference signal corresponding to the M reference signal resources from the network device.

[0112] Among them, the N reference signal resources and the M reference signal resources are different reference signal resources.

[0113] In one implementation, the first characteristics of the N beams are the same; the second characteristics of the N beams are different; the first characteristics of the M beams are different; and the second characteristics of the M beams are the same. For example, the first characteristic is the beam pointing, and the second characteristic is the beam shape; for another example, the first characteristic is the beam shape, and the second characteristic is the beam pointing.

[0114] Exemplarily, the network device may send a reference signal through a phase shifting network and a stereo antenna array, wherein the phase shifting network includes a phase shifter in the depth dimension (referred to as the first phase shifter), and a phase shifter in the horizontal and / or vertical dimension (referred to as the second phase shifter); the first phase shifter connects part or all of the antenna units in at least two layers of antenna units in the stereo antenna array, and the second phase shifter connects part or all of the antenna units in the same layer of antenna units in the stereo antenna array. Then, the network device may adjust the beam shape of the simulated beam through the first phase shifter, and adjust the beam pointing of the simulated beam through the second phase shifter. For example, the network device adjusts the beam shape of N beams to a first beam shape through the first phase shifter, and adjusts the beam pointing of the N beams to N different beam pointings through the second phase shifter; adjusts the beam pointing of M beams to a first beam pointing through the second phase shifter, and adjusts the beam shape of M beams to M different beam shapes through the first phase shifter.

[0115] The first beam pointing may be determined based on the first indication information. For example, if the beam indication of the beam corresponding to the first reference signal resource indicated by the first indication information is the first beam pointing, the network device may determine the beam pointing of the M beams based on the first beam pointing.

[0116] Optionally, the second characteristic of the M beams is one of the second characteristics of the N beams.

[0117] Step S504: the terminal device sends second indication information to the network device, where the second indication information is used to indicate a second reference signal resource, where the second reference signal resource is one of the first reference signal resource and the M reference signal resources.

[0118] Correspondingly, the network device receives the second indication information from the terminal device.

[0119] Optionally, the second reference signal resource may be determined based on the signal quality of the reference signal corresponding to the M reference signal resources and the reference signal corresponding to the first reference signal resource. For example, the reference signal corresponding to the M reference signal resources is used for the terminal device to perform beam measurement, and the reference signal resource of the reference signal with the best signal quality resource among the M reference signals and the first reference signal is determined as the second reference signal resource. The embodiment of the present application does not limit the method for the terminal device to perform beam measurement and determine the second reference signal resource.

[0120] Exemplarily, the second indication information may be a resource number of the second reference signal resource.

[0121] In some embodiments, after obtaining the second indication information, the network device may use the beam corresponding to the second reference signal resource as the optimal simulated beam for subsequent data transmission.

[0122] above Figure 5 The method embodiment shown includes many possible implementation schemes. Figure 6 to Figure 7 Some of the implementation schemes are illustrated with examples. It should be noted that: Figure 6 to Figure 7 For related concepts, operations or logical relationships that are not explained, please refer to Figure 5 The corresponding description in the illustrated embodiment.

[0123] Figure 6 It is a flow chart of another beam measurement method for a three-dimensional antenna array provided in an embodiment of the present application.

[0124] The embodiment of the present application takes the network device as a base station and the terminal device as a UE as an example to introduce in detail the beam measurement method of the stereo antenna array provided by the present application. The embodiment of the present application adopts the method of first polling the beam pointing and then polling the beam shape to complete the measurement of the simulated beam. The function performed by the UE in the embodiment of the present application can also be performed by a module (for example, a chip) in the UE, and the function performed by the base station in the present application can also be performed by a module (for example, a chip) in the base station.

[0125] Figure 6 In the embodiment shown, N1 reference signals may be the above Figure 5 The reference signals corresponding to the N reference signal resources in the embodiment shown; M1-1 reference signals can be the above Figure 5 The reference signals corresponding to the M reference signal resources in the embodiment shown; M1+N1-1 reference signal resources are the above Figure 5 N reference signal resources and M reference signal resources in the illustrated embodiment.

[0126] like Figure 6As shown, the beam measurement method of the three-dimensional antenna array may include some or all of the following steps:

[0127] S601: When the number of beam shapes of simulated beams is M1 and the beam pointing is N1, the base station configures M1+N1-1 reference signal resources, and the M1+N1-1 reference signal resources are used for beam measurement.

[0128] Wherein, M1 and N1 are both integers greater than 1; M1+N1-1 reference signal resources are different reference signal resources. Exemplarily, the reference signal resources include time domain resources and frequency domain resources.

[0129] Optionally, the process of configuring reference signal resources by the base station may include: sending configuration information of the reference signal resources to the terminal device, including resource number, reference signal period information, time and frequency resource mapping information, etc.

[0130] In one implementation, the base station can predefine a set of two-dimensional beam numbering methods, and the beam numbered (m, n) is a simulated beam determined according to the mth beam shape and the nth beam pointing, where m is the beam shape index, n is the beam pointing index, the value range of m is 1,…,M1 or 0,…,M1-1, and the value range of n is 1,…,N1 or 0,…,N1-1.

[0131] S602: The base station determines a first beam shape from M1 beam shapes.

[0132] Optionally, the first beam shape may be randomly selected by the base station from M1 beam shapes, or a beam shape with the largest beam width may be selected from the M1 beam shapes, so as to better select the optimal beam pointing direction.

[0133] S603: The base station sends reference signals on N1 reference signal resources, the N1 reference signals correspond to N1 beams one-to-one, the beam shapes of the N1 beams are all the first beam shapes, and the beam pointings of the N1 beams are respectively the above-mentioned N1 beam pointings.

[0134] That is to say, the beam pointing directions of the N1 beams are all different, and the beam pointing directions of the N1 beams correspond one-to-one to the above-mentioned N1 beam pointing directions.

[0135] In one implementation, the base station can send a reference signal through a phase shift network and a three-dimensional antenna array, wherein the phase shift network includes a phase shifter in the depth dimension (referred to as the first phase shifter), and a phase shifter in the horizontal and / or vertical dimension (referred to as the second phase shifter); the first phase shifter connects part or all of the antenna units in at least two layers of antenna units in the three-dimensional antenna array, and the second phase shifter connects part or all of the antenna units in the same layer of antenna units in the three-dimensional antenna array; the first phase shifter is used to adjust the beam shape of the simulated beam, and the second phase shifter is used to adjust the beam pointing of the simulated beam. Then, the base station can first fix the value of the first phase shifter, that is, fix the beam shape; then generate N1 beams on N1 reference signal resources using N1 different values ​​of the second phase shifter to send the reference signal, wherein the value of the first phase shifter is used to adjust the beam shape of the beam to the first beam shape, and the values ​​of the N1 second phase shifters are respectively used to adjust the beam pointing of the beam to N1 beam pointings.

[0136] S604: The UE performs beam measurement based on N1 reference signals, and determines a first reference signal from the N1 reference signals. The beam pointing direction of the beam corresponding to the first reference signal is the first beam pointing direction.

[0137] It should be understood that since the first reference signal uniquely corresponds to one beam among N1 beams and also uniquely corresponds to one reference signal resource among N1 reference signal resources, the first reference signal is determined from the N1 reference signals, that is, the beam corresponding to the first reference signal is determined from the N1 beams, the beam pointing corresponding to the first reference signal (that is, the first beam pointing) is determined from the N1 beam pointings, and the first reference signal resource corresponding to the first reference signal is determined from the N1 reference signal resources.

[0138] S605: The UE reports first indication information to the base station, where the first indication information is used to indicate the first beam direction.

[0139] Optionally, the first indication information may be a resource number of a first reference signal resource corresponding to the first reference signal. Although the first indication information directly indicates the first reference signal resource corresponding to the first reference signal, since the beam pointing of the first reference signal is the first beam pointing, it also indicates the first beam pointing. For example, the UE receives N1 reference signals respectively, determines the first reference signal from the N1 reference signals, and uses the resource number of the first reference signal resource corresponding to the first reference signal as the first indication information.

[0140] Optionally, the first indication information may be a beam pointing index n* of the first beam pointing, that is, the first indication information directly indicates the first beam pointing. For example, N1 reference signals are used for the terminal device to perform beam measurement, and the terminal device can determine the first reference signal from the N1 reference signals; and the beam pointing index n* of the beam corresponding to the first reference signal is used as the first indication information.

[0141] Optionally, the first indication information may be a serial number of the first reference signal, that is, the first indication information directly indicates the first reference signal. Since the beam pointing direction of the first reference signal is the first beam pointing direction, the first beam pointing direction is indicated.

[0142] It should be understood that the first indication information is used to indicate the first beam pointing. Since the first beam pointing is the beam pointing of the beam corresponding to the first reference signal, and the first reference signal corresponds to the first reference signal resource, the first indication information can also be considered to be used to indicate the first reference signal resource.

[0143] S606: The base station determines the first beam direction based on the first indication information.

[0144] In one implementation, the first indication information may be the resource number of the first reference signal resource corresponding to the first reference signal. Then, the base station determines the first reference signal resource based on the resource number of the first reference signal resource, and then determines the beam corresponding to the first reference signal resource, and determines the beam direction of the beam as the first beam direction.

[0145] In another implementation, the first indication information may be a beam pointing index n*, and the base station may determine the first beam pointing based on the beam pointing index n*.

[0146] S607: The base station sends reference signals on the remaining M1-1 configured reference signal resources, the M1-1 reference signals correspond one-to-one to the M1-1 beams, the beam pointing directions of the M1-1 beams are all the first beam pointing directions, and the beam shapes of the M1-1 beams correspond one-to-one to the remaining M1-1 beam shapes except the first beam shape.

[0147] In one implementation, the base station can send a reference signal through a phase shift network and a three-dimensional antenna array, wherein the phase shift network includes the above-mentioned first phase shifter) and the above-mentioned second phase shifter; the first phase shifter connects part or all of the antenna units in at least two layers of antenna units in the three-dimensional antenna array, and the second phase shifter connects part or all of the antenna units in the same layer of antenna units in the three-dimensional antenna array; the first phase shifter is used to adjust the beam shape of the simulated beam, and the second phase shifter is used to adjust the beam pointing of the simulated beam. Then, the base station can first fix the value of the second phase shifter, that is, fix the beam pointing to the first beam pointing; then use M1-1 different values ​​of the first phase shifter on M1-1 reference signal resources to generate M1-1 beams with different beam shapes but the same beam pointing to send the reference signal. Among them, the value of the second phase shifter is used to adjust the beam pointing of the beam to the first beam pointing, and the values ​​of the M1-1 first phase shifters are respectively used to adjust the beam shape of the beam to M1-1 beam shapes.

[0148] S608: The UE performs beam measurement based on the M1-1 reference signals, and determines a second reference signal from the M1-1 reference signals and the first reference signal, and the beam shape of the second reference signal is the second beam shape.

[0149] S609: The UE reports second indication information to the base station, where the second indication information is used to indicate a second beam shape.

[0150] Optionally, the second indication information may be the resource number of the second reference signal resource corresponding to the second reference signal; since the second indication information directly indicates the second reference signal resource corresponding to the second reference signal, and since the beam shape of the second reference signal is the second beam shape, it also indicates the second beam shape.

[0151] Optionally, the second indication information may be a beam shape index m* of the second beam shape, that is, the second indication information directly indicates the second beam shape.

[0152] Optionally, the second indication information may be the number of the second reference signal, that is, the second indication information directly indicates the second reference signal. Since the beam shape of the second reference signal is the second beam shape, the second beam shape is indicated.

[0153] It should be understood that the second indication information is used to indicate the second beam shape. Since the second beam shape is the beam shape of the beam corresponding to the second reference signal, and the second reference signal corresponds to the second reference signal resource, the second indication information can also be considered to be used to indicate the second reference signal resource.

[0154] S610: The base station determines a target beam according to the first indication information and the second indication information, where the target beam is the beam corresponding to the second reference signal.

[0155] In one implementation, the base station can uniquely determine the optimal simulated beam according to the beam shape index m* and the beam pointing index n* fed back by the UE, that is, the simulated beam numbered (m*, n*).

[0156] In some other embodiments of the present application, the above step S601 may be: when the number of beam shapes of the simulated beam is M1 and the beam pointing is N1, the base station configures M1+N1 reference signal resources, and the M1+N1 reference signal resources are used for beam measurement; the above step S607 may be: the base station sends reference signals on the remaining M1 reference signal resources that have been configured, the M1 reference signals correspond one-to-one to the M1 beams, the beam pointings of the M1 beams are all the first beam pointings, and the beam shapes of the M1 beams correspond one-to-one to the M1 beam shapes; the above step S608 may be: the UE performs beam measurement based on the M1 reference signals, determines the second reference signal from the M1 reference signals, and the beam shape of the second reference signal is the second beam shape. Compared with this embodiment, Figure 6 In the embodiment shown, although one more reference signal resource is configured, in this method, the network device does not need to eliminate the beam shape of the measured beam (i.e., the first beam shape) from the M1 beam shapes, and the terminal device does not need to retain the result of the last measurement, which can reduce the processing process of the network device and the terminal device and improve the processing speed.

[0157] See also Figure 7 , Figure 7 It is a flow chart of another beam measurement method for a three-dimensional antenna array provided in an embodiment of the present application.

[0158] The embodiment of the present application takes the network device as a base station and the terminal device as a UE as an example to introduce in detail the beam measurement method of the stereo antenna array provided by the present application. The embodiment of the present application adopts the method of first polling the beam shape and then polling the beam pointing to complete the measurement of the simulated beam. The function performed by the UE in the embodiment of the present application can also be performed by a module (e.g., a chip) in the UE, and the function performed by the base station in the present application can also be performed by a module (e.g., a chip) in the base station.

[0159] Figure 7 In the embodiment shown, N1 reference signals may be the above Figure 5 The reference signals corresponding to the N reference signal resources in the embodiment shown; M1-1 reference signals can be the above Figure 5 The reference signals corresponding to the M reference signal resources in the embodiment shown; M1+N1-1 reference signal resources are the above Figure 5 N reference signal resources and M reference signal resources in the illustrated embodiment.

[0160] like Figure 7 As shown, the beam measurement method of the three-dimensional antenna array may include some or all of the following steps:

[0161] S701: When the number of beam shapes of the simulated beam is M1 and the beam pointing is N1, the base station configures M1+N1-1 reference signal resources, and the M1+N1-1 reference signal resources are used for beam measurement.

[0162] Wherein, M1 and N1 are both integers greater than 1; M1+N1-1 reference signal resources are different reference signal resources. Exemplarily, the reference signal resources include time domain resources and frequency domain resources.

[0163] Optionally, the process of configuring reference signal resources by the base station may include: sending configuration information of the reference signal resources to the terminal device, including resource number, reference signal period information, time and frequency resource mapping information, etc.

[0164] In one implementation, the base station can predefine a set of two-dimensional beam numbering methods, and the beam numbered (m, n) is a simulated beam determined according to the mth beam shape and the nth beam pointing, where m is the beam shape index, n is the beam pointing index, the value range of m is 1,…,M1 or 0,…,M1-1, and the value range of n is 1,…,N1 or 0,…,N1-1.

[0165] S702: The base station determines a first beam pointing from N1 beam pointings.

[0166] The present application does not limit the method for determining the direction of the first beam.

[0167] S703: The base station sends reference signals on M1 reference signal resources. The M1 reference signals correspond to M1 beams one-to-one. The beam pointing directions of the M1 beams are all first beam pointing directions. The beam shapes of the M1 beams are respectively the above-mentioned M1 beam shapes.

[0168] That is to say, the beam shapes of the M1 beams are all different, and the beam shapes of the M1 beams correspond one-to-one to the above-mentioned M1 beam shapes.

[0169] In one implementation, the base station can send a reference signal through a phase shift network and a three-dimensional antenna array, wherein the phase shift network includes a phase shifter in the depth dimension (referred to as the first phase shifter), and a phase shifter in the horizontal and / or vertical dimension (referred to as the second phase shifter); the first phase shifter connects part or all of the antenna units in at least two layers of antenna units in the three-dimensional antenna array, and the second phase shifter connects part or all of the antenna units in the same layer of antenna units in the three-dimensional antenna array; the first phase shifter is used to adjust the beam shape of the simulated beam, and the second phase shifter is used to adjust the beam pointing of the simulated beam. Then, the base station can first fix the value of the second phase shifter, that is, fix the beam pointing; then generate M1 beams on M1 reference signal resources using M1 different values ​​of the second phase shifter to send the reference signal. Among them, the value of the second phase shifter is used to adjust the beam pointing of the beam to the first beam pointing, and the values ​​of the M1 first phase shifters are respectively used to adjust the beam shape of the beam to the above-mentioned M1 beam shapes.

[0170] S704: The UE performs beam measurement based on M1 reference signals, and determines a first reference signal from the M1 reference signals, and the beam shape of the beam corresponding to the first reference signal is the first beam shape.

[0171] It should be understood that determining the first reference signal from M1 reference signals means determining the beam corresponding to the first reference signal from M1 beams, that is, determining the beam shape corresponding to the first reference signal, i.e. the first beam shape, from M1 beam shapes.

[0172] S705: The UE reports first indication information to the base station, where the first indication information is used to indicate a first beam shape.

[0173] Optionally, the first indication information may be a resource number of a first reference signal resource corresponding to the first reference signal; since the first indication information directly indicates the first reference signal resource corresponding to the first reference signal, and since the beam shape of the first reference signal is the first beam shape, the first beam shape is indicated. For example, the UE performs beam measurement based on N1 reference signals and determines the first reference signal from the N1 reference signals; the resource number of the first reference signal resource corresponding to the first reference signal is used as the first indication information.

[0174] Optionally, the first indication information may be a beam shape index m* of the first beam shape, that is, the first indication information directly indicates the first beam shape. For example, the UE performs beam measurement based on N1 reference signals, determines the first reference signal from the N1 reference signals, and uses the beam shape index m* of the beam corresponding to the first reference signal as the first indication information.

[0175] Optionally, the first indication information may be the number of the first reference signal, that is, the first indication information directly indicates the first reference signal. Since the beam shape of the first reference signal is the first beam shape, the first beam shape is also indicated.

[0176] It should be understood that the first indication information is used to indicate the first beam shape. Since the first beam shape is the beam shape of the beam of the first reference signal, and the first reference signal corresponds to the first reference signal resource, the first indication information can also be considered to be used to indicate the first reference signal resource.

[0177] S706: The base station determines a first beam shape based on the first indication information.

[0178] In one implementation, the first indication information may be the resource number of the first reference signal resource corresponding to the first reference signal. Then, the base station determines the first reference signal resource based on the resource number of the first reference signal resource, and then determines the beam corresponding to the first reference signal resource, and determines the beam shape of the beam to be the first beam shape.

[0179] In another implementation, the first indication information may be a beam shape index m*, and the base station determines the first beam shape based on the beam shape index m*.

[0180] S707: The base station sends reference signals on the remaining N1-1 configured reference signal resources, the N1-1 reference signals correspond one-to-one to the N1-1 beams, the beam shapes of the N1-1 beams are all the first beam shapes, and the beam pointings of the N1-1 beams correspond one-to-one to the remaining N1-1 beam pointings among the N1 beam pointings except the first beam pointing.

[0181] In one implementation, the base station can send a reference signal through a phase shift network and a three-dimensional antenna array, wherein the phase shift network includes the above-mentioned first phase shifter) and the above-mentioned second phase shifter; the first phase shifter connects part or all of the antenna units in at least two layers of antenna units in the three-dimensional antenna array, and the second phase shifter connects part or all of the antenna units in the same layer of antenna units in the three-dimensional antenna array; the first phase shifter is used to adjust the beam shape of the simulated beam, and the second phase shifter is used to adjust the beam pointing of the simulated beam. Then, the base station can first fix the value of the first phase shifter, that is, fix the beam shape to the first beam shape; then use N1-1 different values ​​of the second phase shifter on N1-1 reference signal resources to generate N1-1 beams with different beam pointings to send the reference signal. Among them, the value of the first phase shifter is used to adjust the beam shape of the beam to the first beam shape, and the values ​​of the N1-1 first phase shifters are respectively used to adjust the beam pointing of the beam to N1-1 beam shapes.

[0182] S708: The UE performs beam measurement based on N1-1 reference signals, determines a second reference signal from the N1-1 reference signals and the first reference signal, and the beam pointing of the second reference signal is the second beam pointing.

[0183] S709: The UE reports second indication information to the base station, where the second indication information is used to indicate the second beam direction.

[0184] Optionally, the second indication information may be the resource number of the second reference signal resource corresponding to the second reference signal; since the second indication information directly indicates the second reference signal resource corresponding to the second reference signal, and since the beam pointing of the second reference signal is the second beam pointing, it also indicates the second beam pointing.

[0185] Optionally, the second indication information may be a beam pointing index n* of the second beam pointing, that is, the second indication information directly indicates the second beam pointing.

[0186] Optionally, the second indication information may be the number of the second reference signal, that is, the second indication information directly indicates the second reference signal. Since the beam pointing of the second reference signal is the second beam pointing, the second beam pointing is also indicated.

[0187] It should be understood that the second indication information is used to indicate the second beam pointing. Since the second beam pointing is the beam pointing of the beam corresponding to the second reference signal, and the second reference signal corresponds to the second reference signal resource, the second indication information can also be considered to be used to indicate the second reference signal resource.

[0188] S710: The base station determines a target beam according to the first indication information and the second indication information, where the target beam is the beam corresponding to the second reference signal.

[0189] In one implementation, the base station can uniquely determine the optimal simulated beam according to the beam shape index m* and the beam pointing index n* fed back by the UE, that is, the simulated beam numbered (m*, n*).

[0190] In some other embodiments of the present application, the above step S701 may be: when the number of beam shapes of the simulated beam is M1 and the beam pointing is N1, the base station configures M1+N1 reference signal resources, and the M1+N1 reference signal resources are used for beam measurement; the above step S707 may be: the base station sends reference signals on the remaining N1 configured reference signal resources, the N1 reference signals correspond one-to-one to the N1 beams, the beam shapes of the N1 beams are all the first beam shapes, and the beam pointings of the N1 beams correspond one-to-one to the N1 beam pointings; the above step S708 may be: the UE performs beam measurement based on the N1 reference signals, determines the second reference signal from the N1 reference signals, and the beam pointing of the second reference signal is the second beam pointing. Compared with this embodiment, Figure 7 In the embodiment shown, although one more reference signal resource is configured, in this method, the network device does not need to eliminate the beam pointing of the measured beam (i.e., the first beam pointing) among the M1 beam pointings, and the terminal device does not need to retain the result of the last measurement, which can reduce the processing process of the network device and the terminal device and improve the processing speed.

[0191] It can be understood that this embodiment divides the beam designed by the base station into several beam groups according to the beam generation method (assuming that there is M1 group, M1 is an integer greater than 1), each beam group contains N1 beams (N1 is an integer greater than 1), and the N1 beams in each beam group have the same first phase shifter value, different beam groups correspond to different first phase shifter values, and different beam groups are generated by the same second phase shifter value method. It can be understood that the total M1*N1 beams can be uniquely determined by the two dimensions of depth and vertical-horizontal (vertical-horizontal is regarded as one dimension here), and the M1*N1 beams correspond to specific first phase shifter values ​​and second phase shifter values. The embodiment of the present application can first fix the first dimension, determine the optimal beam pointing direction of another dimension, and then fix the optimal beam pointing direction of this dimension, determine the optimal directional pattern shape of the first dimension, and thus determine the optimal beam, and complete the measurement and selection of the beam. This method only requires measuring M1+N1 beams. Compared with independently measuring M1*N1 beams, it can reduce the number of measured beams and reduce reference signal resource overhead.

[0192] The above content elaborates on the method provided by the present application. In order to facilitate the implementation of the above scheme of the embodiment of the present application, the embodiment of the present application also provides corresponding devices or equipment.

[0193] The present application divides the functional modules of the network device and the terminal device according to the above method embodiment. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. The following will be combined with Figures 8 to 10 The communication device according to the embodiment of the present application is described in detail.

[0194] See also Figure 8 , Figure 8 is a schematic diagram of a structure of a communication device provided in an embodiment of the present application. Figure 8 As shown, the communication device may include a receiving unit 10 and a sending unit 20 .

[0195] In some embodiments of the present application, the communication device may be the network device shown above or a chip or circuit disposed in the network device, that is, the communication device may be used to execute the steps or functions executed by the network device in the above method embodiments.

[0196] In one design, the sending unit 20 is used to: send reference signals corresponding to N reference signal resources; the reference signals are used for beam measurement; the N reference signal resources correspond one-to-one to the N beams; N is an integer greater than 1; the receiving unit 10 is used to: receive first indication information, the first indication information is used to indicate a first reference signal resource, and the N reference signal resources include the first reference signal resource; the sending unit 20 is used to: based on the first indication information, send reference signals corresponding to M reference signal resources; the M reference signal resources correspond one-to-one to the M beams; M is a positive integer; the receiving unit 10 is used to: receive second indication information, the second indication information is used to indicate a second reference signal resource, the second reference signal resource is one of the first reference signal resource and the M reference signal resources.

[0197] In a possible implementation, the N reference signal resources and the M reference signal resources are different reference signal resources.

[0198] In a possible implementation, the first characteristics of the N beams are the same; the second characteristics of the N beams are different; the first characteristics of the M beams are different; and the second characteristics of the M beams are the same.

[0199] Exemplarily, the first characteristic is beam pointing, and the second characteristic is beam shape.

[0200] Exemplarily, the first characteristic is beam shape, and the second characteristic is beam pointing.

[0201] Exemplarily, the first reference signal resource is determined based on signal quality of reference signals corresponding to the N reference signal resources.

[0202] Exemplarily, the second reference signal resource is determined based on signal qualities of a reference signal corresponding to the M reference signal resources and a reference signal corresponding to the first reference signal resource.

[0203] Exemplarily, the reference signal is any one of a channel state information reference signal CSI-RS, a synchronization signal and a physical broadcast channel block SSB.

[0204] Exemplarily, the first indication information is the resource number of the first reference signal resource; and the second indication information is the resource number of the second reference signal resource.

[0205] In the embodiment of the present application, the description of the first indication information, the second indication information, etc. can refer to the above Figures 5 to 7 The introduction in the illustrated method embodiment will not be described in detail here.

[0206] It is understood that the specific description of the receiving unit 10 and the sending unit 20 shown in the embodiment of the present application is only an example. For the specific functions or execution steps of the receiving unit 10 and the sending unit 20, reference can be made to the above Figures 5 to 7 The method embodiment shown is not described in detail here. In addition, the technical effects of the embodiment of the present application can be found in the aforementioned Figures 5 to 7 For the sake of brevity, the technical effects in the illustrated method embodiment are not described in detail here.

[0207] Reuse Figure 8 In some other embodiments of the present application, the communication device may be the terminal device shown above or a chip or circuit disposed in the terminal device. That is, the communication device may be used to execute the steps or functions executed by the terminal device in the above method embodiment.

[0208] In one design, the receiving unit 10 is used to: receive reference signals corresponding to N reference signal resources; the reference signals are used for beam measurement; the N reference signal resources correspond to the N beams one-to-one; N is an integer greater than 1;

[0209] The sending unit 20 is used to: send first indication information, where the first indication information is used to indicate a first reference signal resource, and the N reference signal resources include the first reference signal resource;

[0210] The receiving unit 10 is used to: receive reference signals corresponding to M reference signal resources; the M reference signal resources correspond to the M beams one by one; and M is a positive integer;

[0211] The sending unit 20 is used to send second indication information, where the second indication information is used to indicate a second reference signal resource, and the second reference signal resource is one of the first reference signal resource and the M reference signal resources.

[0212] In a possible implementation, the N reference signal resources and the M reference signal resources are different reference signal resources.

[0213] In a possible implementation, the first characteristics of the N beams are the same; the second characteristics of the N beams are different; the first characteristics of the M beams are different; and the second characteristics of the M beams are the same.

[0214] Exemplarily, the first characteristic is beam pointing, and the second characteristic is beam shape.

[0215] Exemplarily, the first characteristic is beam shape, and the second characteristic is beam pointing.

[0216] Exemplarily, the first reference signal resource is determined based on signal quality of reference signals corresponding to the N reference signal resources.

[0217] Exemplarily, the second reference signal resource is determined based on signal qualities of a reference signal corresponding to the M reference signal resources and a reference signal corresponding to the first reference signal resource.

[0218] Exemplarily, the reference signal is any one of a channel state information reference signal CSI-RS, a synchronization signal and a physical broadcast channel block SSB.

[0219] Exemplarily, the first indication information is the resource number of the first reference signal resource; and the second indication information is the resource number of the second reference signal resource.

[0220] It is understood that the specific description of the receiving unit 10 and the sending unit 20 shown in the embodiment of the present application is only an example. For the specific functions or execution steps of the receiving unit 10 and the sending unit 20, reference can be made to the above Figures 5 to 7 The method embodiment shown is not described in detail here. In addition, the technical effects of the embodiment of the present application can be found in the aforementioned Figures 5 to 7 For the sake of brevity, the technical effects in the illustrated method embodiment are not described in detail here.

[0221] The above describes the network device and terminal device of the embodiment of the present application. The following describes possible product forms of the network device and terminal device. Figure 8 Any form of product with the functions of the network device or terminal device described above falls within the protection scope of the embodiments of the present application. It should also be understood that the following description is only an example and does not limit the product form of the communication device of the embodiments of the present application to this.

[0222] In one possible implementation, Figure 8 The communication device shown may also include a processing unit, which may be one or more processors; the sending unit 20 and the receiving unit 10 are integrated into one device, such as a transceiver, or the sending unit 20 may be a transmitter and the receiving unit 10 may be a receiver. In the embodiment of the present application, the processor and the transceiver may be coupled, etc., and the embodiment of the present application does not limit the connection mode between the processor and the transceiver. In the process of executing the above method, the process of sending information in the above method can be understood as the process of outputting the above information by the processor. When outputting the above information, the processor outputs the above information to the transceiver so that it is transmitted by the transceiver. After the above information is output by the processor, it may also need to be processed in other ways before it reaches the transceiver. Similarly, the process of receiving information in the above method can be understood as the process of the processor receiving the input information. When the processor receives the input information, the transceiver receives the above information and inputs it into the processor. Furthermore, after the transceiver receives the above information, the above information may need to be processed in other ways before it is input into the processor.

[0223] See also Fig. 9 , Fig. 9 is another structural diagram of the communication device provided in the embodiment of the present application. Fig. 9 As shown, the communication device provided in the embodiment of the present application can be used to implement the method described in the above method embodiment, and the description in the above method embodiment can be referred to. The communication device can be a network device, or a terminal device, or a chip therein. Exemplarily, the communication device includes one or more processors 1001 and a transceiver 1002. The communication device may further include a memory 1003. In one implementation, the communication device also includes an input and output device ( Fig. 9 not indicated).

[0224] The processor 1001 is mainly used to process the communication protocol and communication data, and to control the entire communication device, execute the software program, and process the data of the software program. The memory 1003 is mainly used to store the software program and data. The transceiver 1002 may include a control circuit and an antenna. The control circuit is mainly used to convert the baseband signal and the radio frequency signal and process the radio frequency signal. The antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. The input and output devices, such as a touch screen, a display screen, a keyboard, etc., are mainly used to receive data input by the user and output data to the user.

[0225] When the communication device is turned on, the processor 1001 can read the software program in the memory 1003, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor 1001 performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and then sends the radio frequency signal outward in the form of electromagnetic waves through the antenna. When data is sent to the communication device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 1001. The processor 1001 converts the baseband signal into data and processes the data.

[0226] In another implementation, the RF circuit and antenna may be arranged independently of the processor performing baseband processing. For example, in a distributed scenario, the RF circuit and antenna may be arranged remotely from the communication device.

[0227] The processor 1001 , the transceiver 1002 , and the memory 1003 may be connected via a communication bus.

[0228] Exemplarily, when the communication device is used to perform the above Figure 5 When the network device performs the steps, methods or functions in the embodiment shown, the transceiver 1002 can be used to perform Figure 5 Steps S501 and S503 in, and / or other processes for the technology described herein.

[0229] Exemplarily, when the communication device is used to perform the above Figure 5 When the terminal device executes the steps, methods or functions in the embodiment shown, the transceiver 1002 can be used to execute Figure 5 Steps S502 and S504 in, and / or other processes for the technology described herein.

[0230] In any of the above implementations, the processor 1001 may include a transceiver for implementing the receiving and sending functions. For example, the transceiver may be a transceiver circuit, or an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated. The above transceiver circuit, interface, or interface circuit may be used for reading and writing code / data, or the above transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.

[0231] In any of the above implementations, the processor 1001 may store instructions, which may be computer programs. The computer programs run on the processor 1001, and may enable the communication device to perform the method described in the above method embodiment. The computer program may be fixed in the processor 1001, in which case the processor 1001 may be implemented by hardware.

[0232] In one implementation, the communication device may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiment. The processor and transceiver described in the present application can be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit (RFIC), a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-channel metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0233] It is understandable that the communication device shown in the embodiment of the present application may also have Fig. 9 The embodiments of the present application do not limit the number of components and the like. The methods executed by the processor and transceiver shown above are only examples, and the specific steps executed by the processor and transceiver can refer to the introduction of the above method embodiments.

[0234] In another possible implementation, Fig. 9 The communication device shown may further include a processing unit, which may be one or more logic circuits, and the sending unit 20 and the receiving unit 10 may be input / output interfaces, or may be called communication interfaces, or interface circuits, or interfaces, etc. Alternatively, the sending unit 20 and the receiving unit 10 may also be a sending unit and a receiving unit, the sending unit may be an output interface, the receiving unit may be an input interface, and the sending unit and the receiving unit may be integrated into one unit, such as an input / output interface.

[0235] See also Fig.10 , Fig.10 is another structural diagram of a communication device provided in an embodiment of the present application. Fig.10 As shown, Fig.10 The communication device shown includes a logic circuit 901 and an interface 902. That is, the above-mentioned processing unit can be implemented by the logic circuit 901, and the sending unit 20 and the receiving unit 10 can be implemented by the interface 902. Among them, the logic circuit 901 can be a chip, a processing circuit, an integrated circuit or a system on chip (SoC) chip, etc., and the interface 902 can be a communication interface, an input and output interface, a pin, etc. For example, Fig.10 The above communication device is taken as an example of a chip, and the chip includes a logic circuit 901 and an interface 902 .

[0236] In the embodiment of the present application, the logic circuit and the interface may also be coupled to each other. The embodiment of the present application does not limit the specific connection method between the logic circuit and the interface.

[0237] Exemplarily, when the communication device is used to perform the above Figure 5 When the network device executes the steps, methods or functions in the method embodiment shown, the logic circuit 901 is used to determine the reference signals corresponding to N reference signal resources and the reference signals corresponding to M reference signal resources; the interface 902 is used for the reference signals corresponding to the N reference signal resources; the interface 902 is used for the reference signals corresponding to the M reference signal resources.

[0238] Exemplarily, when the communication device is used to perform the above Figure 5 When the terminal device executes the steps, methods or functions in the method embodiment shown, the logic circuit 901 is used to determine the first indication information and the second indication information; the interface 902 is used to send the first indication information and the second indication information.

[0239] In the embodiment of the present application, the description of the first indication information and the second indication information etc. can refer to the above Figure 5The description of the method embodiment shown in the figure will not be described in detail here. It is understood that the specific description of the logic circuit 901 and the interface 902 can also be referred to. Fig. 9 The description of the processing unit, sending unit and receiving unit shown will not be repeated here.

[0240] It can be understood that the communication device shown in the embodiment of the present application can implement the method provided in the embodiment of the present application in the form of hardware, or can implement the method provided in the embodiment of the present application in the form of software, etc., and the embodiment of the present application is not limited to this.

[0241] for Fig.10 The specific implementation methods of the various embodiments shown can also refer to the above embodiments, which will not be described in detail here.

[0242] The embodiment of the present application also provides a communication system, which includes a network device and a terminal device, and the network device and the terminal device can be used to execute any of the above method embodiments ( Figures 5 to 7 ) in the method.

[0243] In addition, the present application also provides a computer program, which is used to implement the operations and / or processing performed by the network device in the method provided by the present application.

[0244] The present application also provides a computer program, which is used to implement the operations and / or processing performed by a terminal device in the method provided by the present application.

[0245] The present application also provides a computer-readable storage medium, in which computer codes are stored. When the computer codes are executed on a computer, the computer executes the operations and / or processes performed by the network device in the method provided in the present application.

[0246] The present application also provides a computer-readable storage medium, in which computer codes are stored. When the computer codes are executed on a computer, the computer executes the operations and / or processes performed by the terminal device in the method provided in the present application.

[0247] The present application also provides a computer program product, which includes a computer code or a computer program. When the computer code or the computer program runs on a computer, the operations and / or processing performed by the network device in the method provided by the present application are executed.

[0248] The present application also provides a computer program product, which includes a computer code or a computer program. When the computer code or the computer program runs on a computer, the operations and / or processing performed by the terminal device in the method provided by the present application are executed.

[0249] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, or it can be an electrical, mechanical or other form of connection.

[0250] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the technical effects of the solutions provided in the embodiments of the present application.

[0251] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0252] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or partly contributed to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a readable storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned readable storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.

[0253] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A beam measurement method for a three-dimensional antenna array, characterized in that: The method comprises: Sending reference signals corresponding to N reference signal resources; the reference signals are used for beam measurement; the N reference signal resources correspond one-to-one to the N beams; N is an integer greater than 1; receiving first indication information, where the first indication information is used to indicate a first reference signal resource, and the N reference signal resources include the first reference signal resource; Based on the first indication information, send reference signals corresponding to M reference signal resources; the M reference signal resources correspond to the M beams one-to-one; and M is a positive integer; Second indication information is received, where the second indication information is used to indicate a second reference signal resource, where the second reference signal resource is one of the first reference signal resource and the M reference signal resources.

2. The method according to claim 1, characterized in that The N reference signal resources and the M reference signal resources are different reference signal resources.

3. The method according to claim 1 or 2, characterized in that: The first characteristics of the N beams are the same; the second characteristics of the N beams are different; the first characteristics of the M beams are different; and the second characteristics of the M beams are the same.

4. The method according to claim 3, characterized in that The first characteristic is beam pointing, and the second characteristic is beam shape.

5. The method according to claim 3, characterized in that: The first characteristic is beam shape and the second characteristic is beam pointing.

6. The method according to any one of claims 1 to 5, characterized in that: The first reference signal resource is determined based on signal qualities of reference signals corresponding to the N reference signal resources.

7. The method according to any one of claims 1 to 6, characterized in that: The second reference signal resource is determined based on signal qualities of reference signals corresponding to the M reference signal resources and a reference signal corresponding to the first reference signal resource.

8. The method according to any one of claims 1 to 7, characterized in that: The reference signal is any one of a channel state information reference signal CSI-RS, a synchronization signal and a physical broadcast channel block SSB.

9. The method according to any one of claims 1 to 8, characterized in that: The first indication information is a resource number of the first reference signal resource; the second indication information is a resource number of the second reference signal resource.

10. A beam measurement method for a three-dimensional antenna array, characterized in that: The method comprises: receiving reference signals corresponding to N reference signal resources; the reference signals are used for beam measurement; the N reference signal resources correspond one-to-one to the N beams; N is an integer greater than 1; Sending first indication information, where the first indication information is used to indicate a first reference signal resource, and the N reference signal resources include the first reference signal resource; receiving reference signals corresponding to M reference signal resources; the M reference signal resources correspond one-to-one to the M beams; and M is a positive integer; Second indication information is sent, where the second indication information is used to indicate a second reference signal resource, where the second reference signal resource is one of the first reference signal resource and the M reference signal resources.

11. The method according to claim 10, characterized in that The N reference signal resources and the M reference signal resources are different reference signal resources.

12. The method according to claim 10 or 11, characterized in that: The first characteristics of the N beams are the same; the second characteristics of the N beams are different; the first characteristics of the M beams are different; and the second characteristics of the M beams are the same.

13. The method according to claim 12, characterized in that The first characteristic is beam pointing, and the second characteristic is beam shape.

14. The method according to claim 12, characterized in that The first characteristic is beam shape and the second characteristic is beam pointing.

15. The method according to any one of claims 10 to 14, characterized in that: The first reference signal resource is determined based on signal qualities of reference signals corresponding to the N reference signal resources.

16. The method according to any one of claims 10 to 15, characterized in that: The second reference signal resource is determined based on signal qualities of reference signals corresponding to the M reference signal resources and a reference signal corresponding to the first reference signal resource.

17. The method according to any one of claims 10 to 16, characterized in that: The reference signal is any one of a channel state information reference signal CSI-RS, a synchronization signal and a physical broadcast channel block SSB.

18. The method according to any one of claims 10 to 17, characterized in that: The first indication information is a resource number of the first reference signal resource; the second indication information is a resource number of the second reference signal resource.

19. A communication device, characterized in that: The method comprises a module or a unit for executing the method according to any one of claims 1 to 18.

20. A communication device, characterized in that: It comprises a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices and transmit them to the processor or send signals from the processor to other communication devices, and the processor is used to implement the method as described in any one of claims 1 to 18 through a logic circuit or executing code instructions.

21. A readable storage medium, characterized in that: The device is used to store a program, wherein the program is executed by one or more processors so that a device including the one or more processors performs the method according to any one of claims 1 to 18.

22. A communication system, characterized in that: include: A network device for executing the method described in any one of claims 1 to 9, and a terminal device for executing the method described in any one of claims 10 to 18.

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