Beam control method, device and electronic device for smart surface device

Abstract

The present application discloses a beam control method, device and electronic device for a smart surface device, which belongs to the field of mobile communications. The beam control method for a smart surface device in an embodiment of the present application includes: a network side device obtains first channel information of an active unit of the smart surface device; the first channel information is channel information between the network side device and the active unit; obtains second channel information of the active unit; the second channel information is channel information between a terminal and the active unit; according to the first channel information and the second channel information, determines control information of a unit array of the smart surface device; wherein the unit array includes active units and passive units of the smart surface device.

Description

Technical Field

[0001] The present application belongs to the field of mobile communication technology, and specifically relates to a beam control method, device and electronic equipment for a smart surface device. Background Art

[0002] Special wireless auxiliary devices in the wireless environment (such as relay devices, backscatter, new devices / large smart surfaces, satellites) have the function of changing their own electromagnetic parameters, affecting the channel conditions between communication devices; the signal-to-noise and interference ratio (SINR) or channel response changes with the electromagnetic parameters and hardware characteristics of these special devices, causing the channel response to be updated accordingly.

[0003] On the other hand, large-scale smart surface devices are composed of a large number of passive units and are unable to send relevant reference signals, which makes it difficult for base stations and terminals to directly obtain the channel information corresponding to each surface unit of the large-scale smart surface devices, and thus it is impossible to accurately control the beam control of the smart surface devices. Summary of the invention

[0004] The embodiments of the present application provide a beam control method, device and electronic device for a smart surface device, which can solve the problem of being unable to accurately control the beam of the smart surface device.

[0005] In a first aspect, a beam control method for a smart surface device is provided, which is applied to a network side device, and the method includes:

[0006] The network side device obtains first channel information of the active unit of the smart surface device; wherein the first channel information is the channel information between the network side device and the active unit;

[0007] The network side device obtains second channel information of the active unit of the smart surface device; wherein the second channel information is channel information between the terminal and the active unit;

[0008] The network-side device determines control information of a unit array of the smart surface device according to the first channel information and the second channel information; wherein the unit array includes active units and passive units of the smart surface device.

[0009] In a second aspect, a beam control device of a smart surface device is provided, comprising:

[0010] A first measurement module, configured to obtain first channel information of an active unit of a smart surface device; wherein the first channel information is channel information between the network side device and the active unit;

[0011] A second measurement module, used for the network side device to obtain second channel information of the active unit of the smart surface device; wherein the second channel information is channel information between the terminal and the active unit;

[0012] A control module is used for the network side device to determine control information of the unit array of the smart surface device according to the first channel information and the second channel information; wherein the unit array includes active units and passive units of the smart surface device.

[0013] In a third aspect, a beam control method for a smart surface device is provided, which is applied to a terminal, and the method includes:

[0014] In case the active unit of the smart surface device supports signal transmission, the terminal obtains a second reference signal transmitted by the active unit;

[0015] In case the active unit of the smart surface device supports receiving signals, the terminal sends a fourth reference signal to the active unit;

[0016] Among them, the second reference signal or the fourth reference signal is used to obtain second channel information of the active unit, the second channel information is the channel information between the terminal and the active unit, the second channel information is used to determine the control information of the unit array of the smart surface device with the first channel information, the unit array includes the active unit and the passive unit of the smart surface device, and the first channel information is the channel information between the network side device and the active unit.

[0017] In a fourth aspect, a beam control device of a smart surface device is provided, comprising:

[0018] A first acquisition module, configured to acquire a second reference signal sent by the active unit of the smart surface device if the active unit supports sending a signal;

[0019] A second acquisition module is configured to send a fourth reference signal to the active unit if the active unit of the smart surface device supports receiving signals;

[0020] Among them, the second reference signal or the fourth reference signal is used to obtain second channel information of the active unit, the second channel information is the channel information between the terminal and the active unit, the second channel information is used to determine the control information of the unit array of the smart surface device with the first channel information, the unit array includes the active unit and the passive unit of the smart surface device, and the first channel information is the channel information between the network side device and the active unit.

[0021] In a fifth aspect, a beam control method for a smart surface device is provided, which is applied to the smart surface device, and the method includes:

[0022] The smart surface device performs channel measurement through the active unit and the network measuring device; wherein the channel measurement between the active unit and the network side device is used to obtain the first channel information of the active unit, and the first channel information is the channel information between the network side device and the active unit;

[0023] The smart surface device performs channel measurement with the terminal through the active unit; wherein the channel measurement between the active unit and the terminal is used to obtain second channel information, and the second channel information is the channel information between the terminal and the active unit;

[0024] The smart surface device obtains control information of a unit array; wherein the control information is obtained based on the first channel information and the second channel information, and the unit array includes active units and passive units of the smart surface device.

[0025] In a sixth aspect, a beam control device of a smart surface device is provided, comprising:

[0026] A first communication module, configured to perform channel measurement between an active unit and a network measuring device; wherein the channel measurement between the active unit and the network side device is used to obtain first channel information of the active unit, and the first channel information is channel information between the network side device and the active unit;

[0027] A second communication module, configured to perform channel measurement with a terminal through an active unit; wherein the channel measurement between the active unit and the terminal is used to obtain second channel information, and the second channel information is channel information between the terminal and the active unit;

[0028] An execution module is used to obtain control information of a unit array; wherein the control information is obtained based on the first channel information and the second channel information, and the unit array includes active units and passive units of the smart surface device.

[0029] In the seventh aspect, a network side device is provided, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect.

[0030] In an eighth aspect, a terminal is provided, comprising a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the third aspect.

[0031] In the ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the third aspect are implemented, or the steps of the method described in the fifth aspect are implemented.

[0032] On the tenth aspect, a chip is provided, which includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect, or the steps of the method described in the third aspect, or the steps of the method described in the fifth aspect.

[0033] In the eleventh aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a non-volatile storage medium, and the program / program product is executed by at least one processor to implement the steps of the method described in the first aspect, or the steps of the method described in the third aspect, or the steps of the method described in the fifth aspect.

[0034] In an embodiment of the present application, first channel information and second channel information of an active unit of a smart surface device are obtained through a network side device, and then control information of a unit array of the smart surface device is determined based on the first channel information and the second channel information, thereby improving the efficiency of channel measurement, achieving accurate beam control of the smart surface device, and supporting the generation of complex forwarding beams for smart surface devices with multiple terminals and multiple base stations. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic diagram showing the structure of a wireless communication system to which the embodiments of the present application can be applied;

[0036] Figure 2 A schematic flow chart of a beam control method for a smart surface device according to an embodiment of the present application is shown;

[0037] Figure 3 A schematic flow chart showing another beam control method for a smart surface device according to an embodiment of the present application is shown;

[0038] Figure 4 A schematic diagram showing a channel estimation method for a passive unit in a beam control method for a smart surface device implemented in the present application is shown;

[0039] Figure 5 A schematic flow chart showing another beam control method for a smart surface device according to an embodiment of the present application is shown;

[0040] Figure 6 A schematic diagram showing the structure of a beam control device of a smart surface device according to an embodiment of the present application is shown;

[0041] Figure 7 A schematic flow chart showing another beam control method for a smart surface device according to an embodiment of the present application is shown;

[0042] Figure 8 A schematic diagram showing the structure of another beam control device of an intelligent surface device according to an embodiment of the present application is shown;

[0043] Fig. 9 A schematic flow chart showing another beam control method for a smart surface device according to an embodiment of the present application is shown;

[0044] Fig.10 A schematic diagram showing the structure of another beam control device of an intelligent surface device according to an embodiment of the present application is shown;

[0045] Fig.11 A schematic diagram of the structure of a communication device provided in an embodiment of the present application is shown;

[0046] Fig.12 A schematic diagram of the structure of a terminal for implementing an embodiment of the present application;

[0047] Fig.13 A schematic diagram of the structure of a network-side device for implementing an embodiment of the present application. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0049] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally represents that the objects associated with each other are in an "or" relationship.

[0050] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following descriptions, but these technologies can also be applied to applications other than NR system applications, such as the 6th generation (6 th Generation, 6G) communication system.

[0051] Figure 1The following is a schematic diagram showing the structure of a wireless communication system applicable to the embodiment of the present application. The wireless communication system includes a terminal 11, a network side device 12 and a smart surface device 13. The terminal 11 may also be referred to as a terminal device or a user terminal (User Equipment, UE). The terminal 11 may be a mobile phone, a tablet computer (Tablet Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device (Wearable Device) or a vehicle-mounted device (VUE), a pedestrian terminal (PUE) and other terminal side devices. The wearable device includes: a smart watch, a bracelet, a headset, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may be a base station or a core network, wherein the base station may be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting receiving point (Transmitting Receiving Point, TRP) or other appropriate terms in the field, as long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary, it should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited. The intelligent surface device 13 may be a large intelligent surface (Large Intelligent Surfaces, LIS) or a reconfigurable intelligent surface (Reconfigurable Intelligent Surfaces, RIS), and RIS is taken as an example in the following embodiments. RIS can dynamically / semi-statically change its own electromagnetic properties, affecting the reflection / refraction behavior of electromagnetic waves incident on RIS. RIS realizes beam scanning / beam forming and other functions by manipulating the reflected / refracted waves of electromagnetic waves. RIS working principle and equipment structure: RIS consists of an artificial surface at the front end and a control module at the back end.The artificial surface at the front end is composed of densely arranged artificial device units; the device characteristics of the device unit are affected by the control signal / bias voltage of the device, and different control signals / bias voltages correspond to different reflection coefficients / refractive coefficients; changes in the reflection coefficient / refractive coefficient will affect the phase and / or intensity of the reflection signal / refractive signal; at the microscopic level, each device unit causes an independent reflection / refractive signal, and at the macroscopic level, these signals are superimposed together to achieve the manipulation of electromagnetic waves. The control signal / bias voltage is provided by the control module at the back end.

[0052] The beam control method of the smart surface device provided by the embodiment of the present application is described in detail below through some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0053] Figure 2 A schematic diagram of a beam control method for a smart surface device according to an embodiment of the present application is shown. Figure 2 As shown, the method can be executed by a network side device, in other words, the method can be executed by software or hardware installed in the network side device. The method can be executed by the following steps.

[0054] Step S201: The network side device obtains first channel information of an active unit of a smart surface device; wherein the first channel information is channel information between the network side device and the active unit.

[0055] The smart surface device of the embodiment of the present application includes a unit array composed of device units, which may specifically include active units and passive units. The number and position of the active units in the unit array can be set according to actual needs, and a sparse arrangement can be adopted.

[0056] Step S202: The network side device obtains second channel information of the active unit of the smart surface device; wherein the second channel information is channel information between the terminal and the active unit.

[0057] Step S203: The network-side device determines control information of a unit array of the smart surface device according to the first channel information and the second channel information; wherein the unit array includes active units and passive units of the smart surface device.

[0058] For a smart surface device including active units and passive units, the beam control method of the embodiment of the present application is divided into two stages: the first stage is a channel measurement stage based on the active unit and the second stage is a beam control stage of the smart surface device. In the first stage, according to the function of sending and receiving information possessed by the active unit of the smart surface device, channel measurement is performed based on the active unit, and the channel information of each active unit in the smart surface device can be obtained, including the first channel information between the active unit and the network side device and the second channel information between the active unit and the terminal. In the second stage, beamforming is performed on the smart surface device based on the obtained channel information to obtain control information of the unit array of the smart surface device. The control information may include the working status of each unit in the unit array.

[0059] The control information can be used to determine the configuration of the simulated forwarding beam of the smart surface device. Then, the channel measurement between the base station and the terminal can be performed to determine the beamforming configuration of the base station and the terminal.

[0060] The step S201 and step S202 are not sequentially performed and can be performed simultaneously or separately according to their respective corresponding measurement cycles. The embodiment of the present application is only illustrated by taking the example of step S201 being performed first and step S202 being performed later.

[0061] In one implementation, since the position between the network side device and the RIS device is relatively fixed and the channel changes slowly, the first measurement period for obtaining the first channel information can be relatively long, and the second measurement period for obtaining the second channel information can be relatively short, which can depend on the moving speed of the terminal and the change of the environment. For example, the second measurement period can refer to the channel state information (CSI) measurement period configuration of the terminal, which can be equal to an integer multiple of the CSI measurement period. In the first measurement period, multiple second measurement periods can be included, and measurements can be performed on terminals in multiple different directions.

[0062] Therefore, an embodiment of the present application provides a beam control method for a smart surface device, which obtains first channel information and second channel information of an active unit of the smart surface device through a network side device, and then determines control information of a unit array of the smart surface device based on the first channel information and the second channel information, thereby improving the efficiency of channel measurement, achieving accurate beam control of the smart surface device, and supporting the generation of complex forwarding beams for smart surface devices with multiple terminals and multiple base stations.

[0063] Figure 3 A schematic flow chart of another beam control method for a smart surface device according to an embodiment of the present application is shown as follows: Figure 3As shown, the method can be executed by a network-side device, in other words, the method can be executed by software or hardware installed in the network-side device. The active unit of the smart surface device can be of various types, and can be an active unit with a function of sending and / or receiving signals. In the case where the active unit supports sending signals, that is, the active unit is an active unit with a function of sending signals, or an active unit that supports the functions of sending and receiving signals, the method can be executed by the following steps.

[0064] Step S301: Receive a first reference signal sent by the active unit.

[0065] Step S302: Obtain first channel information of the active unit by measuring the channel of the first reference signal.

[0066] In one implementation, when the active unit supports signal transmission, the active unit may transmit a first reference signal to the network side device. The network side device performs channel measurement according to the received first reference signal to obtain first channel information of the active unit.

[0067] The parameters of the first reference signal may be configured by the network side device.

[0068] Step S303, receiving second channel information sent by the terminal; wherein the second channel information is obtained by the terminal through channel measurement of a second reference signal, and the second reference signal is sent to the terminal by the active unit.

[0069] In one implementation, when the active unit supports sending signals, the active unit can send a second reference signal to the terminal, and the terminal performs channel measurement based on the received second reference signal to obtain second channel information of the active unit and send it to the network side device.

[0070] The parameters of the second reference signal can also be configured by the network side device, and the configured parameters can be notified to the terminal at the same time, and can be carried by downlink control information (Downlink Control Information, DCI), medium access control control element (Medium Access Control Control Element, MAC CE) or radio resource control (Radio Resource Control, RRC) and other information.

[0071] The configuration parameters of the first reference signal and the second reference signal configured by the network side device may specifically include time-frequency resources of the reference signal, reference signal sequence and port, precoding and other parameters.

[0072] The first reference signal and the second reference signal may be various types of reference signals. In one implementation, the reference signal includes at least one of the following types:

[0073] Synchronization Signal and PBCH block (SSB);

[0074] Channel State Information Reference Signal (CSI-RS);

[0075] Demodulation Reference Signal (DMRS); the DMRS may be a DMRS of a physical downlink shared channel (PDSCH), a physical downlink control channel (PDCCH), or a physical uplink shared channel (PUSCH), i.e., DMRS for PDSCH, DMRS for PDCCH, or DMRS for PUSCH;

[0076] Position Reference Signal (PRS);

[0077] Sounding Reference Signal (SRS);

[0078] Physical Random Access Channel Reference Signal (PRACH) reference signal;

[0079] Side link reference signal;

[0080] The dedicated reference signal used for smart surface device channel measurement may include a dedicated first reference signal and / or a dedicated second reference signal.

[0081] The first reference signal sent by the network side device and the second parameter signals sent by different terminals can be distinguished through different ports. In one implementation, the reference signals are distinguished in at least one of the following ways:

[0082] Time division multiplexing; for example, each reference signal can be sent on a different OFDM symbol;

[0083] Frequency division multiplexing; for example, each reference signal can be sent on different frequency domain resources on the same OFDM symbol;

[0084] Code division multiplexing; for example, using different sequences to generate each reference signal;

[0085] Space division multiplexing or beam scanning; the active unit can send the first reference signal and / or the second reference signal by beam scanning or beam training, and the network measurement equipment and the terminal respectively use the beam with the best signal quality as the communication beam through channel measurement to obtain the first channel information and the second channel information.

[0086] Optionally, the first reference signal and the second reference signal have the same frequency bandwidth.

[0087] Step S304: Obtain third channel information and fourth channel information of the passive unit of the smart surface device according to the first channel information and the second channel information; wherein the third channel information is the channel information between the network side device and the passive unit, and the fourth channel information is the channel information between the terminal and the passive unit.

[0088] In one implementation, the network side device may perform channel estimation on the passive units in the RIS device through the first channel information and the second channel information of the active units of the RIS device to obtain the third channel information and the fourth channel information of each passive unit.

[0089] A variety of estimation methods may be used to obtain the third channel information and the fourth channel information of the passive unit. In one embodiment, the third channel information and the fourth channel information of the passive unit of the smart surface device are obtained by an interpolation algorithm based on the first channel information and the second channel information. The interpolation algorithm is specifically exemplified as follows:

[0090] like Figure 4 As shown in the figure, the network side device 410, the terminal 420 and the RIS device 430 are included, wherein the RIS device 430 includes an active unit 431 and a passive unit 432 represented by different patterns. Through channel measurement, the channel information of the active units i and j are obtained respectively, including the first channel information H of the active unit i B,i and the second channel information H i,U , and the first channel information H of active unit j B,j and the second channel information H j,U According to H B,i , H i,U , H B,j and H j,U By performing channel estimation on the passive unit k located between the active units i and j, the third channel information H of the passive unit k can be obtained.B,k and the fourth channel information H k,U Specifically, it can be obtained by an interpolation algorithm. For example, H can be obtained by a linear interpolation algorithm. B,k =1 / 2(H B,i +H B,j ) and H k,U =1 / 2(H i,U +H j,U There are many interpolation algorithms, such as Wiener filtering, nonlinear interpolation, etc., which are not specifically limited here.

[0091] Likewise Figure 4 As shown, if the smart surface uses beam scanning to perform channel estimation, the first channel information represents the energy intensity of each beam received by the network device from the smart surface active unit, and the second channel information represents the energy intensity of each beam received by the terminal device from the smart surface active unit. The network device selects the beam corresponding to one or more measurement results with the strongest energy as the beam from the network device to the smart surface based on the first channel information; and selects the beam corresponding to one or more measurement results with the strongest energy as the beam from the terminal device to the smart surface based on the second channel information. According to the beam codebook of the smart surface active unit, the relative phase relationship between the channels of each active unit is determined, that is, H B,i With H B,j The phase difference between i,U With H j,U The phase difference between them can be further determined in the cascade channel, from the network device to the smart surface active unit and then to the terminal device. B,i *H i,U With H B,j *H j,U The phase difference between the two channels can also be determined by the interpolation algorithm. The phase difference between the cascade channels from the network device to the smart surface passive unit and then to the terminal device can be used to calculate the control information of the smart surface.

[0092] In one embodiment, the first channel information and the second channel information may specifically be the correlation between the channels of each active unit, for example, the channel measurement result of the active unit obtained by beam scanning or beam training. Similarly, the third channel information and the fourth channel information of the passive unit estimated by using an interpolation algorithm may also be the correlation between the channels of each passive unit.

[0093] In one implementation, after the RIS device accesses the cell, that is, completes the synchronization process and maintains time and frequency synchronization with the network side device, the method further includes:

[0094] Obtain device parameters reported by the smart surface device, where the device parameters include at least one of the following:

[0095] Device type; the device type may include: a pure passive RIS device including only passive units, a pure active RIS device including only active units, and an active-passive hybrid RIS device including both active units and passive units;

[0096] Equipment size;

[0097] Type of active unit;

[0098] Location of active units;

[0099] The number of active units;

[0100] The capabilities of the active unit, including supporting only receive signals, only transmit signals, or both receive and transmit signals;

[0101] The capability of the passive unit includes the type of the passive unit, such as phase control type and amplitude control type, etc., and may also include the quantization accuracy of the control parameters of the passive unit, such as the bit length of the control information that controls the state of the passive unit. For example, the passive unit is a phase-controlled RIS unit, and the state of the RIS unit is controlled by 1 bit of control information. The system may consider that control information '0' corresponds to the phase of the reflected signal being continuous with the phase of the incident signal, and control information '1' corresponds to the phase of the reflected signal being 180° different from the phase of the incident signal; or consider that the phase of the reflected signal corresponding to control information '0' is 180° different from the phase of the reflected signal corresponding to control information '1'.

[0102] Step S305: Obtain control information of the unit array of the smart surface device according to the third channel information and the fourth channel information.

[0103] In one implementation, the network side device obtains control information of the unit array of the RIS device based on the channel information of each device unit, including the channel information of the active unit and the passive unit, or only based on the channel information of the passive unit, to obtain a target forwarding beam in the RIS device. The target forwarding beam can be a single beam pointing to a certain terminal or a certain group of terminals, or can be a beam in multiple directions pointing to multiple terminals or multiple groups of terminals in multiple different directions.

[0104] In one embodiment, after step S305, the method further includes:

[0105] The control information of the unit array is sent to the smart surface device, wherein the control information includes: the working state of each passive unit of the smart surface device. The control information can be carried in DCI, MAC CE or RRC.

[0106] In one embodiment, after determining the initial beam of the RIS device according to the obtained control information of the unit array, the beam of the RIS device can also be fine-tuned. The network side device configures several finer beams for the RIS device in the control information sent, and the finer beam refers to a beam with different beam phases or different beam directions, which can be obtained by appropriate correction on the basis of the initial beam. The network side device can also configure the time parameters for beam fine-tuning for the RIS device, including multiple time units, each time unit corresponding to one of the above-mentioned finer beams. For beam fine-tuning, the network side device can configure the configuration information of the corresponding beam measurement for the terminal, including reference signal time-frequency resources, port number, etc. The reference signal is sent by the network side device or the terminal, and the terminal or the network side device receives the reference signal and performs beam measurement, and determines the appropriate finer beam according to the measurement result.

[0107] In another embodiment, the network side device may send a parameter requirement to the smart surface device, wherein the parameter requirement is used to enable the smart surface device to determine the working state of each passive unit of the smart surface device;

[0108] The parameter requirements include at least one of the following:

[0109] Beam direction;

[0110] A channel measurement result between the base station and the terminal;

[0111] Power and phase relationships of multiple beams.

[0112] The smart surface device can obtain control information of the unit array of the RIS device based on the received parameter requirements and the channel information of each device unit, including the channel information of the active unit and the passive unit, or only based on the channel information of the passive unit to obtain the target forwarding beam in the RIS device.

[0113] In one embodiment, after step S305, the method further includes:

[0114] The network side device determines the beamforming parameters of the network side device and / or the terminal through channel measurement, and the channel measurement can be performed according to the protocol process.

[0115] Therefore, the embodiment of the present application provides a beam control method for a smart surface device, in which the active unit sends a first reference signal and a second reference signal to the network side device and the terminal when the active unit supports sending signals, and obtains the first channel information and the second channel information of the active unit through channel measurement, and performs channel estimation on the third channel information and the fourth channel information of the passive unit according to the first channel information and the second channel information of the active unit, and then obtains the control information of the unit array of the smart surface device according to the channel information of each unit. The embodiment of the present application uses the active unit to perform segmented channel estimation, avoids the complex channel estimation method for the cascade channel of the network side device-smart surface device-terminal, improves the efficiency of channel measurement, realizes accurate beam control of the smart surface device, and can support the generation of complex smart surface device forwarding beams of multiple terminals and multiple base stations.

[0116] Figure 5 A schematic flow chart of another beam control method for a smart surface device according to an embodiment of the present application is shown as follows: Figure 5 As shown, the method can be executed by a network side device, in other words, the method can be executed by software or hardware installed in the network side device. In the case where the active unit supports receiving signals, that is, the active unit is an active unit with a signal receiving function, or an active unit supporting the functions of sending and receiving signals, the method can be executed by the following steps.

[0117] Step S501, sending a third reference signal to the active unit;

[0118] Step S502: Acquire first channel information sent by the active unit; wherein the first channel information is obtained by the active unit through channel measurement of the third reference signal.

[0119] In one implementation, when the active unit supports receiving signals, the network side device may send a third reference signal to the active unit, and the active unit performs channel measurement on the received third reference signal to obtain first channel information of the active unit.

[0120] The parameters of the third reference signal may be configured by the network side device.

[0121] In one implementation, after obtaining the first channel information of the active unit, the RIS device may send the first channel information to the network side device through the active unit.

[0122] Step S503, obtaining second channel information sent by the active unit; wherein the second channel information is obtained by the active unit by performing channel measurement on a fourth reference signal, and the fourth reference signal is sent by the terminal to the active unit.

[0123] In one implementation, when the active unit supports receiving signals, the terminal may send a fourth reference signal to the active unit, and the active unit performs channel measurement on the received fourth reference signal to obtain second channel information of the active unit.

[0124] The parameters of the fourth reference signal may be configured by the network side device, and the configured parameters may be notified to the terminal at the same time.

[0125] The configuration parameters of the third reference signal and the fourth reference signal configured by the network side device may specifically include time-frequency resources of the reference signal, reference signal sequence and port, precoding and other parameters.

[0126] In one implementation, after obtaining the second channel information of the active unit, the RIS device may send the second channel information to the network side device through the active unit.

[0127] The third reference signal and the fourth reference signal may be of the same type as the first reference signal and the second reference signal in the above embodiment and may be sent in the same manner, and the repeated parts will not be repeated here.

[0128] In one embodiment, the fourth reference signal may be SSB, CSI-RS, DMRS for PDSCH, DMRS for PDCCH, PRS, or a dedicated reference signal for smart surface device channel measurement.

[0129] In one implementation, the third reference signal may be an SRS, a PRACH reference signal, a DMRS for PUSCH, a side link reference signal, or a dedicated reference signal for channel measurement of a smart surface device.

[0130] In one implementation, there may be multipath effects in the wireless environment, that is, objects in the environment reflect or refract the reference signal transmitted by the network side device or terminal, and the active unit may receive the same reference signal with different transmission delays and different amplitudes from different propagation paths. However, since the channel responses of different propagation paths vary randomly, the effects of non-direct paths can be offset by multiple measurements and averaging, and only the reference signal of the direct path or the path with a stronger signal is retained for channel measurement to obtain the measurement result, that is, the first channel information and the second channel information.

[0131] Step S504: The smart surface device obtains third channel information and fourth channel information of the passive unit of the smart surface device based on the first channel information and the second channel information; wherein the third channel information is the channel information between the network side device and the passive unit, and the fourth channel information is the channel information between the terminal and the passive unit.

[0132] In one implementation, the RIS device may perform channel estimation on the passive units in the RIS device according to the first channel information and the second channel information of the active units, so as to obtain the third channel information and the fourth channel information of each passive unit.

[0133] A variety of estimation methods may be used to obtain the third channel information and the fourth channel information of the passive unit. In one embodiment, the third channel information and the fourth channel information of the passive unit of the smart surface device are obtained by an interpolation algorithm based on the first channel information and the second channel information. The interpolation algorithm may be linear interpolation, Wiener filtering, nonlinear interpolation, etc., which are not specifically limited here.

[0134] In one implementation, after the RIS device performs channel measurement through the active unit to obtain the first channel information and the second channel information, the method further includes:

[0135] The first channel information and / or the second channel information are reported to the network side device. The network side device obtains the third channel information and the fourth channel information of the passive unit of the smart surface device according to the received first channel information and the second channel information, and performs the following steps: Figure 3 The method embodiments of steps S304 and S305 in the above embodiment can achieve the same technical effect, and the repeated parts will not be repeated here.

[0136] The first channel information and / or the second channel information reported by the RIS device may be in various forms. In one implementation, at least one of the following forms may be used:

[0137] Directly report the first channel information and / or second channel information of all active units;

[0138] Report the relative ratio of channel information between active units, for example, report the first channel information H of active unit o B,o and H B,o The first channel information H of active unit i B,i The ratio and phase difference of the active unit o are reported to the second channel information H U,o and H U,o The second channel information H of active unit i U,iThe ratio and phase difference of the active unit o is shown in FIG. 1 , wherein the active unit o is a reference unit of the active unit set, and its position in the smart surface is determined by the smart surface or jointly determined by the network device and the smart surface.

[0139] Report the relative ratio between each channel information, for example, H B,i With H U,i The ratio between

[0140] Reporting the direction information of the reference signal, for example, the angle-of-arrival (AOA) and AOZ information of the third reference signal sent by the network side device, the AOA and AOZ information of the fourth reference signal sent by the terminal, and the signal strength at the corresponding angle;

[0141] Reported through other channel information compression algorithms.

[0142] In one implementation, after the RIS device accesses the cell, the method further includes:

[0143] The device parameters of the RIS device reported, the device parameters including at least one of the following:

[0144] Type of device;

[0145] Equipment size;

[0146] Type of active unit;

[0147] Location of active units;

[0148] The number of active units;

[0149] Capabilities of active units;

[0150] Capabilities of passive units.

[0151] Step S505: The smart surface device obtains control information of the unit array of the smart surface device according to the third channel information and the fourth channel information.

[0152] In one implementation, the network side device may send a parameter requirement to the smart surface device, wherein the parameter requirement is used to enable the smart surface device to determine the working state of each passive unit of the smart surface device;

[0153] The parameter requirements include at least one of the following:

[0154] Beam direction;

[0155] A channel measurement result between the base station and the terminal;

[0156] Power and phase relationships of multiple beams.

[0157] The smart surface device can obtain control information of the unit array of the RIS device based on the received parameter requirements and the channel information of each device unit, including the channel information of the active unit and the passive unit, or only based on the channel information of the passive unit to obtain the target forwarding beam in the RIS device.

[0158] In one embodiment, after the RIS device determines the initial beam of the RIS device according to the obtained control information of the unit array, it can also fine-tune the beam of the RIS device. The network-side device configures several finer beams for the RIS device in the control information sent, and the finer beam refers to a beam with different beam phases or different beam directions, which can be obtained by appropriate correction on the basis of the initial beam. The network-side device can also configure the time parameters for beam fine-tuning for the RIS device, including multiple time units, each time unit corresponding to one of the above-mentioned finer beams. For beam fine-tuning, the network-side device can configure the configuration information of the corresponding beam measurement for the terminal, including reference signal time-frequency resources, port number, etc. The reference signal is sent by the network-side device or the terminal, and the terminal or the network-side device receives the reference signal and performs beam measurement, and determines the appropriate finer beam according to the measurement result.

[0159] In one embodiment, after step S505, the method further includes:

[0160] The network side device determines the beamforming parameters of the network side device and / or the terminal through channel measurement, and the channel measurement can be performed according to the protocol process.

[0161] Therefore, the embodiment of the present application provides a beam control method for a smart surface device, in which, when the active unit supports receiving signals, the network side device and the terminal respectively send a third reference signal and a fourth reference signal to the active unit, and after channel measurement, the first channel information and the second channel information of the active unit are respectively obtained, and the RIS device performs channel estimation on the third channel information and the fourth channel information of the passive unit according to the first channel information and the second channel information of the active unit, and then obtains the control information of the unit array of the smart surface device according to the channel information of each unit. The embodiment of the present application avoids the complex channel estimation method for the cascade channel of the network side device-smart surface device-terminal by using the active unit for segmented channel estimation, improves the efficiency of channel measurement, realizes accurate beam control of the smart surface device, and can support the generation of complex smart surface device forwarding beams of multiple terminals and multiple base stations.

[0162] It should be noted that the beam control method of the smart surface device provided in the embodiment of the present application can be executed by a beam control device of the smart surface device, or a control module in the beam control device of the smart surface device for executing the beam control method of the smart surface device. In the embodiment of the present application, the beam control device of the smart surface device executing the beam control method of the smart surface device is taken as an example to illustrate the beam control device of the smart surface device provided in the embodiment of the present application.

[0163] Based on the above embodiment, in another implementation manner, the beam control method of the smart surface device provided in the embodiment of the present application may include the following steps.

[0164] Step 1: Perform channel measurement between the network side device and the RIS device, and obtain first channel information according to the channel measurement result.

[0165] In one implementation, a first reference signal is sent to an active unit via a network side device, and the active unit performs channel measurement on the received first reference signal to obtain first channel information.

[0166] In another implementation, the active unit sends a third reference signal to the network side device, and the network side device performs channel measurement based on the third reference signal to obtain the first channel information. The third reference signal can be sent in a time division multiplexing, frequency division multiplexing, or code division multiplexing manner.

[0167] In another implementation, the active unit sends a reference signal in the form of beam scanning, and the network side device measures the beams sent by each active unit to determine that the beam with the best signal quality is the beam corresponding to the first channel information.

[0168] Step 2: The network side device sends control information to the RIS device so that the RIS device can obtain the working status of each unit in the unit array. The control information can be carried in DCI, MAC CE or RRC.

[0169] In one implementation, the control information may be a plurality of optional configuration information of passive units in a unit array of the RIS device, respectively corresponding to a plurality of beam directions of a forwarding signal of the RIS device.

[0170] In another embodiment, the control information may be the beam directions of the forwarding signals of the multiple RIS devices and the beams of the RIS active units (corresponding to the beams obtained after the active units are beam scanned in step 1). The control module of the RIS device generates the configuration information of the passive units in the unit array of the RIS device according to the channel information obtained through channel measurement in step 1 or the beam information of the RIS active units configured by the network side device, combined with the beam directions of the forwarding signals of the RIS device configured by the network side device.

[0171] In one implementation, the first channel information from the network side device to each active unit or the relative information between channels can be determined based on the channel measurement result of step 1 or the codebook of beam scanning. The third channel information from the network side device to each passive unit or the relative information between channels can be determined by an interpolation algorithm. The phase or relative phase requirement required by the passive unit in the unit array can be calculated based on the beam direction of the forwarding signal of the RIS device configured by the network side device. The working state of each passive unit can be determined based on the above information.

[0172] Step 3: The RIS device forwards the beam scan.

[0173] The network side device sends control information to configure the working time period of the beams for forwarding signals of multiple RIS devices.

[0174] The network side device sends multiple reference signals corresponding to the working time periods of the beams of the configured multiple RIS devices forwarding signals.

[0175] The terminal receives multiple reference signals according to the configuration information of the network side device to measure the signal quality, and feeds back the measurement result to the network side device and / or the RIS device.

[0176] The network side device receives the measurement result of the terminal, determines the beam direction of the RIS device, and configures the determination result to the RIS device.

[0177] The beam control of the smart surface device provided in the embodiment of the present application can be achieved as follows: Figure 3-5 The method embodiments shown in the figure have the same technical effects, and the repeated parts will not be described in detail here.

[0178] Figure 6 A schematic diagram of the structure of a beam control device of a smart surface device according to an embodiment of the present application is shown. Figure 6 As shown, the device includes: a first measuring module 601, a second measuring module 602 and a control module 603.

[0179] The first measurement module 601 is used to obtain the first channel information of the active unit of the smart surface device; wherein the first channel information is the channel information between the network side device and the active unit; the second measurement module 602 is used by the network side device to obtain the second channel information of the active unit of the smart surface device; wherein the second channel information is the channel information between the terminal and the active unit; the control module 603 is used by the network side device to determine the control information of the unit array of the smart surface device according to the first channel information and the second channel information; wherein the unit array includes the active unit and the passive unit of the smart surface device.

[0180] Therefore, an embodiment of the present application provides a beam control device for a smart surface device, which obtains first channel information and second channel information of an active unit of the smart surface device, and then determines control information of a unit array of the smart surface device according to the first channel information and the second channel information, thereby improving the efficiency of channel measurement, achieving accurate beam control of the smart surface device, and supporting the generation of complex forwarding beams for smart surface devices with multiple terminals and multiple base stations.

[0181] Based on the above embodiment, further, the control module is used for:

[0182] According to the first channel information and the second channel information, third channel information and fourth channel information of the passive unit of the smart surface device are obtained; wherein the third channel information is the channel information between the network side device and the passive unit, and the fourth channel information is the channel information between the terminal and the passive unit;

[0183] Control information of the unit array of the smart surface device is obtained according to the third channel information and the fourth channel information.

[0184] Further, in the case that the active unit supports sending a signal, the first measurement module is used to:

[0185] receiving a first reference signal sent by the active unit;

[0186] The first channel information of the active unit is obtained by measuring the channel of the first reference signal.

[0187] Further, in the case that the active unit supports sending a signal, the second measurement module is used to:

[0188] Receive second channel information sent by the terminal; wherein the second channel information is obtained by the terminal through channel measurement of a second reference signal, and the second reference signal is sent to the terminal by the active unit.

[0189] Furthermore, the control module is used to obtain third channel information and fourth channel information of the passive unit of the smart surface device through an interpolation algorithm according to the first channel information and the second channel information.

[0190] Furthermore, the control module is further configured to obtain device parameters reported by the smart surface device, wherein the device parameters include at least one of the following:

[0191] Type of device;

[0192] Equipment size;

[0193] Type of active unit;

[0194] Location of active units;

[0195] The number of active units;

[0196] Capabilities of active units;

[0197] Capabilities of passive units.

[0198] Furthermore, the control module is further used to send control information of the unit array to the smart surface device, wherein the control information includes: a working state of each passive unit of the smart surface device.

[0199] Further, the control module is further used to send a parameter requirement to the smart surface device, wherein the parameter requirement is used to enable the smart surface device to determine the working state of each passive unit of the smart surface device;

[0200] The parameter requirements include at least one of the following:

[0201] Beam direction;

[0202] A channel measurement result between the base station and the terminal;

[0203] Power and phase relationships of multiple beams.

[0204] Furthermore, the control module is also used to determine the beamforming parameters of the network side device and / or the terminal through channel measurement.

[0205] Furthermore, the reference signal includes at least one of the following types:

[0206] Synchronous signal block;

[0207] Channel state information reference signal;

[0208] Demodulation reference signal;

[0209] Positioning reference signal;

[0210] detecting a reference signal;

[0211] Physical random access channel reference signal;

[0212] A secondary link reference signal;

[0213] Dedicated reference signal for channel measurements in smart surface devices.

[0214] Furthermore, the reference signal is provided in at least one of the following ways:

[0215] Time division multiplexing;

[0216] Frequency division multiplexing;

[0217] Code division multiplexing;

[0218] Wave speed scan.

[0219] Therefore, the embodiment of the present application provides a beam control device for a smart surface device. When the active unit supports sending signals, the active unit sends a first reference signal and a second reference signal to the network side device and the terminal. After channel measurement, the first channel information and the second channel information of the active unit are respectively obtained, and the third channel information and the fourth channel information of the passive unit are channel estimated according to the first channel information and the second channel information of the active unit, and then the control information of the unit array of the smart surface device is obtained according to the channel information of each unit. The embodiment of the present application uses the active unit to perform segmented channel estimation, avoids the complex channel estimation method for the cascade channel of the network side device-smart surface device-terminal, improves the efficiency of channel measurement, realizes accurate beam control of the smart surface device, and can support the generation of complex smart surface device forwarding beams of multiple terminals and multiple base stations.

[0220] Based on the above embodiment, further, in the case that the active unit supports receiving signals, the first measurement module is used to:

[0221] sending a third reference signal to the active unit;

[0222] Acquire first channel information sent by the active unit; wherein the first channel information is obtained by the active unit through channel measurement of the third reference signal.

[0223] Further, in the case that the active unit supports receiving signals, the second measurement module is used to:

[0224] Acquire second channel information sent by the active unit; wherein the second channel information is obtained by the active unit through channel measurement of a fourth reference signal, and the fourth reference signal is sent by the terminal to the active unit.

[0225] Therefore, the embodiment of the present application provides a beam control device for a smart surface device. When the active unit supports receiving signals, the network side device and the terminal respectively send a third reference signal and a fourth reference signal to the active unit. After channel measurement, the first channel information and the second channel information of the active unit are respectively obtained, and the RIS device performs channel estimation on the third channel information and the fourth channel information of the passive unit according to the first channel information and the second channel information of the active unit, and then obtains the control information of the unit array of the smart surface device according to the channel information of each unit. The embodiment of the present application uses the active unit to perform segmented channel estimation, avoids the complex channel estimation method for the cascade channel of the network side device-smart surface device-terminal, improves the efficiency of channel measurement, realizes accurate beam control of the smart surface device, and can support the generation of complex smart surface device forwarding beams of multiple terminals and multiple base stations.

[0226] The beam control device of the smart surface device in the embodiment of the present application can be a device, a device or electronic device with an operating system, or a component, an integrated circuit, or a chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal can include but is not limited to the types of terminals 11 listed above, and the non-mobile terminal can be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiment of the present application.

[0227] The beam control device of the smart surface device provided in the embodiment of the present application can achieve Figures 2 to 5 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0228] Figure 7 A schematic flow chart of another beam control method for a smart surface device according to an embodiment of the present application is shown as follows: Figure 7 As shown, the method can be executed by a terminal, in other words, the method can be executed by software or hardware installed in the terminal. The method can be executed by the following steps.

[0229] Step S701: When an active unit of the smart surface device supports sending signals, the terminal obtains a second reference signal sent by the active unit;

[0230] Step S702: When the active unit of the smart surface device supports receiving signals, the terminal sends a fourth reference signal to the active unit;

[0231] Among them, the second reference signal or the fourth reference signal is used to obtain second channel information of the active unit, the second channel information is the channel information between the terminal and the active unit, the second channel information is used to determine the control information of the unit array of the smart surface device with the first channel information, the unit array includes the active unit and the passive unit of the smart surface device, and the first channel information is the channel information between the network side device and the active unit.

[0232] Further, after acquiring the second reference signal sent by the active unit, the method further includes:

[0233] Channel measurement is performed on the second reference signal to obtain the second channel information and send the second channel information to the network device.

[0234] Furthermore, the method also includes:

[0235] Acquire parameters of the second reference signal or the fourth reference signal configured by a network-side device.

[0236] Furthermore, the reference signal includes at least one of the following types:

[0237] Channel state information reference signal;

[0238] Demodulation reference signal;

[0239] Positioning reference signal;

[0240] detecting a reference signal;

[0241] Physical random access channel reference signal;

[0242] A secondary link reference signal;

[0243] Dedicated reference signal for channel measurements in smart surface devices.

[0244] Furthermore, the reference signal is provided in at least one of the following ways:

[0245] Time division multiplexing;

[0246] Frequency Division Multiplexing

[0247] Code division multiplexing;

[0248] Wave speed scan.

[0249] The beam control method of the smart surface device provided in the embodiment of the present application can achieve Figures 2 to 5 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0250] Therefore, an embodiment of the present application provides a beam control method for a smart surface device, which performs channel measurement based on the active unit of the smart surface device supporting sending and / or receiving signals, obtains second channel information between the active unit and the terminal, and then determines control information of the unit array of the smart surface device in combination with the first channel information, thereby improving the efficiency of channel measurement, realizing accurate beam control of the smart surface device, and can support the generation of complex smart surface device forwarding beams with multiple terminals and multiple base stations.

[0251] It should be noted that the beam control method of the smart surface device provided in the embodiment of the present application can be executed by a beam control device of the smart surface device, or a control module in the beam control device of the smart surface device for executing the beam control method of the smart surface device. In the embodiment of the present application, the beam control device of the smart surface device executing the beam control method of the smart surface device is taken as an example to illustrate the beam control device of the smart surface device provided in the embodiment of the present application.

[0252] Figure 8 A schematic diagram showing the structure of another beam control device of an intelligent surface device according to an embodiment of the present application is shown. Figure 8 As shown, the device includes: a first acquisition module 801 and a second acquisition module 802.

[0253] The first acquisition module 801 is used to acquire a second reference signal sent by the active unit of the smart surface device when the active unit supports sending signals; the second acquisition module 802 is used to send a fourth reference signal to the active unit when the active unit of the smart surface device supports receiving signals; wherein the second reference signal or the fourth reference signal is used to obtain second channel information of the active unit, the second channel information is the channel information between the terminal and the active unit, the second channel information is used to determine control information of the unit array of the smart surface device with the first channel information, the unit array includes active units and passive units of the smart surface device, and the first channel information is the channel information between the network side device and the active unit.

[0254] Furthermore, the first acquisition module is also used to perform channel measurement on the second reference signal, obtain the second channel information and send it to the network device.

[0255] Furthermore, the first acquisition module or the second acquisition module is further used to acquire parameters of the second reference signal or the fourth reference signal configured by the network side device.

[0256] Furthermore, the reference signal includes at least one of the following types:

[0257] Channel state information reference signal;

[0258] Demodulation reference signal;

[0259] Positioning reference signal;

[0260] detecting a reference signal;

[0261] Physical random access channel reference signal;

[0262] A secondary link reference signal;

[0263] Dedicated reference signal for channel measurements in smart surface devices.

[0264] Furthermore, the reference signal is provided in at least one of the following ways:

[0265] Time division multiplexing;

[0266] Frequency Division Multiplexing

[0267] Code division multiplexing;

[0268] Wave speed scan.

[0269] Therefore, an embodiment of the present application provides a beam control device for a smart surface device, which performs channel measurement based on the active unit of the smart surface device supporting sending and / or receiving signals, obtains second channel information between the active unit and the terminal, and then determines control information of the unit array of the smart surface device in combination with the first channel information, thereby improving the efficiency of channel measurement, realizing accurate beam control of the smart surface device, and can support the generation of complex smart surface device forwarding beams with multiple terminals and multiple base stations.

[0270] The beam control device of the smart surface device in the embodiment of the present application can be a device, a device or electronic device with an operating system, or a component, an integrated circuit, or a chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal can include but is not limited to the types of terminals 11 listed above, and the non-mobile terminal can be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiment of the present application.

[0271] The beam control device of the smart surface device provided in the embodiment of the present application can achieve Figure 7 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0272] Fig. 9A schematic flow chart of another beam control method for a smart surface device according to an embodiment of the present application is shown as follows: Fig. 9 As shown, the method can be performed by a smart surface device. The method can be performed by the following steps.

[0273] Step S901: The smart surface device performs channel measurement with the network device through the active unit; wherein the channel measurement between the active unit and the network device is used to obtain first channel information of the active unit, and the first channel information is the channel information between the network device and the active unit;

[0274] Step S902: the smart surface device performs channel measurement with the terminal through the active unit; wherein the channel measurement between the active unit and the terminal is used to obtain second channel information, and the second channel information is the channel information between the terminal and the active unit;

[0275] Step S903: The smart surface device obtains control information of a unit array; wherein the control information is obtained based on the first channel information and the second channel information, and the unit array includes active units and passive units of the smart surface device.

[0276] The beam control method provided in the embodiment of the present application can be implemented as follows: Figure 2 The method embodiments of each step shown in the figure achieve the same technical effect, and the repeated parts will not be repeated here.

[0277] Therefore, an embodiment of the present application provides a beam control method for a smart surface device, which obtains first channel information and second channel information by performing channel measurement on an active unit of the smart surface device, and then determines control information of a unit array of the smart surface device based on the first channel information and the second channel information, thereby improving the efficiency of channel measurement, achieving accurate beam control of the smart surface device, and supporting the generation of complex forwarding beams for smart surface devices with multiple terminals and multiple base stations.

[0278] Based on the above embodiment, in one implementation manner, when the active unit supports sending a signal, the step S901 includes:

[0279] A first reference signal is sent to a network side device, so that the network side device obtains first channel information by performing channel measurement on the first reference signal.

[0280] In one implementation, when the active unit supports sending a signal, step S902 includes:

[0281] A second reference signal is sent to the terminal, so that the terminal obtains second channel information by performing channel measurement on the second reference signal.

[0282] In one implementation, step S903 includes:

[0283] Receive control information of the unit array sent by the network side device.

[0284] In one embodiment, the method further comprises:

[0285] The device parameters of the smart surface device reported to the network side device include at least one of the following:

[0286] Type of device;

[0287] Equipment size;

[0288] Type of active unit;

[0289] Location of active units;

[0290] The number of active units;

[0291] Capabilities of active units;

[0292] Capabilities of passive units.

[0293] In one implementation, the reference signal includes at least one of the following types:

[0294] Synchronous signal block;

[0295] Channel state information reference signal;

[0296] Demodulation reference signal;

[0297] Positioning reference signal;

[0298] detecting a reference signal;

[0299] Physical random access channel reference signal;

[0300] A secondary link reference signal;

[0301] Dedicated reference signal for channel measurements in smart surface devices.

[0302] In one implementation, the reference signal is provided in at least one of the following ways:

[0303] Time division multiplexing;

[0304] Frequency division multiplexing;

[0305] Code division multiplexing;

[0306] Wave speed scan.

[0307] The beam control method provided in the embodiment of the present application can be implemented as follows: Figure 3 and Figure 4The method embodiments of each step shown in the figure achieve the same technical effect, and the repeated parts will not be repeated here.

[0308] Therefore, the embodiment of the present application provides a beam control method for a smart surface device, in which the active unit sends a first reference signal and a second reference signal to the network side device and the terminal when the active unit supports sending signals, and obtains the first channel information and the second channel information of the active unit through channel measurement, and performs channel estimation on the third channel information and the fourth channel information of the passive unit according to the first channel information and the second channel information of the active unit, and then obtains the control information of the unit array of the smart surface device according to the channel information of each unit. The embodiment of the present application uses the active unit to perform segmented channel estimation, avoids the complex channel estimation method for the cascade channel of the network side device-smart surface device-terminal, improves the efficiency of channel measurement, realizes accurate beam control of the smart surface device, and can support the generation of complex smart surface device forwarding beams of multiple terminals and multiple base stations.

[0309] Based on the above embodiment, in one implementation manner, when the active unit supports receiving signals, step S901 includes:

[0310] A third reference signal sent by a network-side device is received, and first channel information is obtained by performing channel measurement on the third reference signal.

[0311] In one implementation, when the active unit supports receiving signals, step S902 includes:

[0312] A fourth reference signal sent by the terminal is received, and second channel information is obtained by performing channel measurement on the fourth reference signal.

[0313] In one embodiment, the method further comprises:

[0314] Report the first channel information and / or the second channel information to the network side device.

[0315] In one implementation, step S903 includes:

[0316] Obtaining third channel information and fourth channel information of the passive unit of the smart surface device according to the first channel information and the second channel information;

[0317] According to the third channel information and the fourth channel information, control information of the unit array of the smart surface device is obtained; wherein the control information includes: the working status of each passive unit of the smart surface device.

[0318] In one embodiment, obtaining third channel information and fourth channel information of the passive unit of the smart surface device according to the first channel information and the second channel information includes:

[0319] According to the first channel information and the second channel information, third channel information and fourth channel information of the passive unit of the smart surface device are obtained through an interpolation algorithm.

[0320] In one embodiment, the method further comprises:

[0321] receiving a parameter requirement sent by the network-side device, wherein the parameter requirement is used to enable the smart surface device to determine the working state of each passive unit of the smart surface device;

[0322] The parameter requirements include at least one of the following:

[0323] Beam direction;

[0324] A channel measurement result between the base station and the terminal;

[0325] Power and phase relationships of multiple beams.

[0326] In one embodiment, the method further comprises:

[0327] The device parameters of the smart surface device reported to the network side device include at least one of the following:

[0328] Type of device;

[0329] Equipment size;

[0330] Type of active unit;

[0331] Location of active units;

[0332] The number of active units;

[0333] Capabilities of active units;

[0334] Capabilities of passive units.

[0335] In one implementation, the reference signal includes at least one of the following types:

[0336] Synchronous signal block;

[0337] Channel state information reference signal;

[0338] Demodulation reference signal;

[0339] Positioning reference signal;

[0340] detecting a reference signal;

[0341] Physical random access channel reference signal;

[0342] A secondary link reference signal;

[0343] Dedicated reference signal for channel measurements in smart surface devices.

[0344] In one implementation, the reference signal is provided in at least one of the following ways:

[0345] Time division multiplexing;

[0346] Frequency division multiplexing;

[0347] Code division multiplexing;

[0348] Wave speed scan.

[0349] The beam control method of the embodiment of the present application can be implemented as follows: Figure 5 The method embodiments of each step shown in the figure achieve the same technical effect, and the repeated parts will not be repeated here.

[0350] Therefore, the embodiment of the present application provides a beam control method for a smart surface device, in which, when the active unit supports receiving signals, the network side device and the terminal respectively send a third reference signal and a fourth reference signal to the active unit, and after channel measurement, the first channel information and the second channel information of the active unit are respectively obtained, and the RIS device performs channel estimation on the third channel information and the fourth channel information of the passive unit according to the first channel information and the second channel information of the active unit, and then obtains the control information of the unit array of the smart surface device according to the channel information of each unit. The embodiment of the present application avoids the complex channel estimation method for the cascade channel of the network side device-smart surface device-terminal by using the active unit for segmented channel estimation, improves the efficiency of channel measurement, realizes accurate beam control of the smart surface device, and can support the generation of complex smart surface device forwarding beams of multiple terminals and multiple base stations.

[0351] Fig.10 A schematic diagram showing the structure of another beam control device of an intelligent surface device according to an embodiment of the present application is shown. Fig.10 As shown, the device includes: a first communication module 1001, a second communication module 1002 and an execution module 1003.

[0352] The first communication module 1001 is used to perform channel measurement through an active unit and a network measurement device; wherein the channel measurement between the active unit and the network side device is used to obtain first channel information of the active unit, and the first channel information is the channel information between the network side device and the active unit; the second communication module 1002 is used to perform channel measurement through an active unit and a terminal; wherein the channel measurement between the active unit and the terminal is used to obtain second channel information, and the second channel information is the channel information between the terminal and the active unit; the execution module 1003 is used to obtain control information of a unit array; wherein the control information is obtained based on the first channel information and the second channel information, and the unit array includes active units and passive units of the smart surface device.

[0353] Therefore, an embodiment of the present application provides a beam control device for an intelligent surface device, which obtains first channel information and second channel information through channel measurement by an active unit, and then determines control information of a unit array of the intelligent surface device based on the first channel information and the second channel information, thereby improving the efficiency of channel measurement, achieving accurate beam control of the intelligent surface device, and supporting the generation of complex forwarding beams for intelligent surface devices with multiple terminals and multiple base stations.

[0354] Based on the above embodiment, further, the first communication module is used to send a first reference signal to the network side device, so that the network side device obtains first channel information by performing channel measurement on the first reference signal.

[0355] In one implementation, when the active unit supports sending signals, the second communication module is used to send a second reference signal to the terminal, so that the terminal obtains second channel information by performing channel measurement on the second reference signal.

[0356] In one implementation, the execution module is used to receive control information of the unit array sent by a network-side device.

[0357] In one embodiment, the execution module is further configured to report device parameters of the smart surface device to the network side device, wherein the device parameters include at least one of the following:

[0358] Type of device;

[0359] Equipment size;

[0360] Type of active unit;

[0361] Location of active units;

[0362] The number of active units;

[0363] Capabilities of active units;

[0364] Capabilities of passive units.

[0365] In one implementation, the reference signal includes at least one of the following types:

[0366] Synchronous signal block;

[0367] Channel state information reference signal;

[0368] Demodulation reference signal;

[0369] Positioning reference signal;

[0370] detecting a reference signal;

[0371] Physical random access channel reference signal;

[0372] A secondary link reference signal;

[0373] Dedicated reference signal for channel measurements in smart surface devices.

[0374] In one implementation, the reference signal is provided in at least one of the following ways:

[0375] Time division multiplexing;

[0376] Frequency division multiplexing;

[0377] Code division multiplexing;

[0378] Wave speed scan.

[0379] Therefore, the embodiment of the present application provides a beam control device for a smart surface device. When the active unit supports sending signals, the active unit sends a first reference signal and a second reference signal to the network side device and the terminal. After channel measurement, the first channel information and the second channel information of the active unit are respectively obtained, and the third channel information and the fourth channel information of the passive unit are channel estimated according to the first channel information and the second channel information of the active unit, and then the control information of the unit array of the smart surface device is obtained according to the channel information of each unit. The embodiment of the present application uses the active unit to perform segmented channel estimation, avoids the complex channel estimation method for the cascade channel of the network side device-smart surface device-terminal, improves the efficiency of channel measurement, realizes accurate beam control of the smart surface device, and can support the generation of complex smart surface device forwarding beams of multiple terminals and multiple base stations.

[0380] Based on the above embodiment, further, in the case that the active unit supports receiving signals, the first communication module is used to receive a third reference signal sent by a network side device, and obtain first channel information by performing channel measurement on the third reference signal.

[0381] In one implementation, when the active unit supports receiving signals, the second communication module is configured to receive a fourth reference signal sent by a terminal, and obtain second channel information by performing channel measurement on the fourth reference signal.

[0382] In one implementation, the execution module is further configured to report the first channel information and / or the second channel information to the network side device.

[0383] In one embodiment, the execution module is used to obtain third channel information and fourth channel information of the passive unit of the smart surface device according to the first channel information and the second channel information;

[0384] According to the third channel information and the fourth channel information, control information of the unit array of the smart surface device is obtained; wherein the control information includes: the working status of each passive unit of the smart surface device.

[0385] In one implementation, the execution module is used to obtain third channel information and fourth channel information of the passive unit of the smart surface device through an interpolation algorithm according to the first channel information and the second channel information.

[0386] In one embodiment, the execution module is further used to receive a parameter requirement sent by the network-side device, wherein the parameter requirement is used to enable the smart surface device to determine the working state of each passive unit of the smart surface device;

[0387] The parameter requirements include at least one of the following:

[0388] Beam direction;

[0389] A channel measurement result between the base station and the terminal;

[0390] Power and phase relationships of multiple beams.

[0391] In one embodiment, the execution module is further configured to report device parameters of the smart surface device to the network side device, wherein the device parameters include at least one of the following:

[0392] Type of device;

[0393] Equipment size;

[0394] Type of active unit;

[0395] Location of active units;

[0396] The number of active units;

[0397] Capabilities of active units;

[0398] Capabilities of passive units.

[0399] In one implementation, the reference signal includes at least one of the following types:

[0400] Synchronous signal block;

[0401] Channel state information reference signal;

[0402] Demodulation reference signal;

[0403] Positioning reference signal;

[0404] detecting a reference signal;

[0405] Physical random access channel reference signal;

[0406] A secondary link reference signal;

[0407] Dedicated reference signal for channel measurements in smart surface devices.

[0408] In one implementation, the reference signal is provided in at least one of the following ways:

[0409] Time division multiplexing;

[0410] Frequency division multiplexing;

[0411] Code division multiplexing;

[0412] Wave speed scan.

[0413] Therefore, the embodiment of the present application provides a beam control device for a smart surface device. When the active unit supports receiving signals, the network side device and the terminal respectively send a third reference signal and a fourth reference signal to the active unit. After channel measurement, the first channel information and the second channel information of the active unit are respectively obtained, and the RIS device performs channel estimation on the third channel information and the fourth channel information of the passive unit according to the first channel information and the second channel information of the active unit, and then obtains the control information of the unit array of the smart surface device according to the channel information of each unit. The embodiment of the present application uses the active unit to perform segmented channel estimation, avoids the complex channel estimation method for the cascade channel of the network side device-smart surface device-terminal, improves the efficiency of channel measurement, realizes accurate beam control of the smart surface device, and can support the generation of complex smart surface device forwarding beams of multiple terminals and multiple base stations.

[0414] The beam control device of the smart surface device in the embodiment of the present application can be a device, a device with an operating system or an electronic device, which is not specifically limited in the embodiment of the present application.

[0415] The beam control device of the smart surface device provided in the embodiment of the present application can achieve Fig. 9 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0416] Optional, such as Fig.11 As shown, the embodiment of the present application further provides a communication device 1100, including a processor 1101, a memory 1102, and a program or instruction stored in the memory 1102 and executable on the processor 1101. For example, when the communication device 1100 is a terminal, the program or instruction is executed by the processor 1101 to implement the various processes of the embodiment of the beam control method of the above-mentioned smart surface device, and can achieve the same technical effect. When the communication device 1100 is a network-side device, the program or instruction is executed by the processor 1101 to implement the various processes of the embodiment of the beam control method of the above-mentioned smart surface device, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0417] The embodiment of the present application also provides a network side device, including a processor and a communication interface, wherein the processor is used to determine the control information of the unit array of the smart surface device according to the first channel information and the second channel information, and the communication interface is used to obtain the first channel information of the active unit of the smart surface device, and is also used to obtain the second channel information of the active unit of the smart surface device. This network side device embodiment corresponds to the above-mentioned network side device method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this network side device embodiment, and can achieve the same technical effect.

[0418] Specifically, the embodiment of the present application also provides a network side device. Fig.12 As shown, the network device 1200 includes: an antenna 121, a radio frequency device 122, and a baseband device 123. The antenna 121 is connected to the radio frequency device 122. In the uplink direction, the radio frequency device 122 receives information through the antenna 121 and sends the received information to the baseband device 123 for processing. In the downlink direction, the baseband device 123 processes the information to be sent and sends it to the radio frequency device 122, and the radio frequency device 122 processes the received information and sends it out through the antenna 121.

[0419] The frequency band processing device may be located in the baseband device 123 . The method executed by the network-side device in the above embodiment may be implemented in the baseband device 123 . The baseband device 123 includes a processor 124 and a memory 125 .

[0420] The baseband device 123 may include, for example, at least one baseband board on which a plurality of chips are arranged. Fig.12As shown, one of the chips is, for example, a processor 124, which is connected to a memory 125 to call a program in the memory 125 to execute the network device operations shown in the above method embodiment.

[0421] The baseband device 123 may further include a network interface 126 for exchanging information with the radio frequency device 122 . The interface may be, for example, a common public radio interface (CPRI).

[0422] Specifically, the network side device of the embodiment of the present invention further includes: instructions or programs stored in the memory 125 and executable on the processor 124, and the processor 124 calls the instructions or programs in the memory 125 to execute Figure 6 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0423] The embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the communication interface is used to obtain a second reference signal sent by the active unit of the smart surface device when the active unit supports sending signals, and is used to send a fourth reference signal to the active unit when the active unit of the smart surface device supports receiving signals. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Fig.13 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0424] The terminal 1300 includes but is not limited to: a radio frequency unit 1301, a network module 1302, an audio output unit 1303, an input unit 1304, a sensor 1305, a display unit 1306, a user input unit 1307, an interface unit 1308, a memory 1309, and at least some of the components of a processor 1310.

[0425] Those skilled in the art will appreciate that the terminal 1300 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 1310 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Fig.13 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0426] It should be understood that in the embodiment of the present application, the input unit 1304 may include a graphics processor (Graphics Processing Unit, GPU) 13041 and a microphone 13042, and the graphics processor 13041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 1306 may include a display panel 13061, and the display panel 13061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1307 includes a touch panel 13071 and other input devices 13072. The touch panel 13071 is also called a touch screen. The touch panel 13071 may include two parts: a touch detection device and a touch controller. Other input devices 13072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0427] In the embodiment of the present application, the radio frequency unit 1301 receives downlink data from the network side device and sends it to the processor 1310 for processing; in addition, the uplink data is sent to the network side device. Generally, the radio frequency unit 1301 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0428] The memory 1309 can be used to store software programs or instructions and various data. The memory 1309 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 1309 may include a high-speed random access memory, and may also include a non-transient memory, wherein the non-transient memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. For example, at least one disk storage device, a flash memory device, or other non-transient solid-state storage device.

[0429] The processor 1310 may include one or more processing units; optionally, the processor 1310 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and application programs or instructions, and the modem processor mainly processes wireless communications, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 1310.

[0430] The radio frequency unit 1301 is used to obtain a second reference signal sent by the active unit when the active unit of the smart surface device supports sending a signal;

[0431] The radio frequency unit 1301 is further configured to send a fourth reference signal to the active unit when the active unit of the smart surface device supports receiving signals.

[0432] Further, the processor 1310 is configured to perform channel measurement on the second reference signal to obtain the second channel information.

[0433] The radio frequency unit 1301 is further configured to send the second channel information to the network device.

[0434] Furthermore, the radio frequency unit 1301 is further configured to obtain parameters of the second reference signal or the fourth reference signal configured by a network side device.

[0435] Furthermore, the reference signal includes at least one of the following types:

[0436] Channel state information reference signal;

[0437] Demodulation reference signal;

[0438] Positioning reference signal;

[0439] detecting a reference signal;

[0440] Physical random access channel reference signal;

[0441] A secondary link reference signal;

[0442] Dedicated reference signal for channel measurements in smart surface devices.

[0443] Furthermore, the reference signal is provided in at least one of the following ways:

[0444] Time division multiplexing;

[0445] Frequency Division Multiplexing

[0446] Code division multiplexing;

[0447] Wave speed scan.

[0448] Therefore, the embodiments of the present application improve the efficiency of channel measurement, achieve accurate beam control of smart surface devices, and support the generation of complex smart surface device forwarding beams with multiple terminals and multiple base stations.

[0449] An embodiment of the present application further provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the beam control method embodiment of the above-mentioned smart surface device is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0450] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0451] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned beam control method embodiment of the smart surface device, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0452] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0453] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0454] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0455] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A beam control method for a smart surface device, characterized in that: include: The network side device obtains first channel information of the active unit of the smart surface device; wherein the first channel information is the channel information between the network side device and the active unit; The network side device obtains second channel information of the active unit of the smart surface device; wherein the second channel information is channel information between the terminal and the active unit; The network side device determines control information of a unit array of the smart surface device according to the first channel information and the second channel information; wherein the unit array includes active units and passive units of the smart surface device; The step of determining the control information of the unit array of the smart surface device according to the first channel information and the second channel information includes: According to the first channel information and the second channel information, the third channel information and the fourth channel information of the passive unit of the smart surface device are obtained by an interpolation algorithm; wherein the third channel information is the channel information between the network side device and the passive unit, and the fourth channel information is the channel information between the terminal and the passive unit; Control information of the unit array of the smart surface device is obtained according to the third channel information and the fourth channel information.

2. The method according to claim 1, characterized in that: In the case that the active unit supports sending a signal, obtaining first channel information of the active unit of the smart surface device comprises: receiving a first reference signal sent by the active unit; The first channel information of the active unit is obtained by measuring the channel of the first reference signal.

3. The method according to claim 1, characterized in that In the case that the active unit supports sending signals, the obtaining second channel information of the active unit of the smart surface device comprises: Receive second channel information sent by the terminal; wherein the second channel information is obtained by the terminal through channel measurement of a second reference signal, and the second reference signal is sent to the terminal by the active unit.

4. The method according to claim 1, characterized in that: In a case where the active unit supports receiving signals, obtaining first channel information of the active unit of the smart surface device includes: sending a third reference signal to the active unit; Acquire first channel information sent by the active unit; wherein the first channel information is obtained by the active unit through channel measurement of the third reference signal.

5. The method according to claim 1, characterized in that In the case that the active unit supports receiving signals, obtaining second channel information of the active unit of the smart surface device includes: Acquire second channel information sent by the active unit; wherein the second channel information is obtained by the active unit through channel measurement of a fourth reference signal, and the fourth reference signal is sent by the terminal to the active unit.

6. The method according to claim 1, characterized in that Before the network-side device obtains the first channel information and / or the second channel information of the active unit of the smart surface device, the method further includes: Obtain device parameters reported by the smart surface device, where the device parameters include at least one of the following: Type of device; Equipment size; Type of active unit; Location of active units; The number of active units; Capabilities of active units; Capabilities of passive units.

7. The method according to claim 1, characterized in that After determining the control information of the unit array of the smart surface device, the method further includes: The control information of the unit array is sent to the smart surface device, wherein the control information includes: the working status of each passive unit of the smart surface device.

8. The method according to claim 1, characterized in that The method further comprises: sending a parameter requirement to the smart surface device, wherein the parameter requirement is used to enable the smart surface device to determine the working state of each passive unit of the smart surface device; The parameter requirements include at least one of the following: Beam direction; The channel measurement result between the network side device and the terminal; Power and phase relationships of multiple beams.

9. The method according to claim 1, characterized in that: After determining the control information of the unit array of the smart surface device, the method further includes: The beamforming parameters of the network side device and / or the terminal are determined through channel measurement.

10. The method according to any one of claims 2 to 5, characterized in that: The first reference signal, the second reference signal, the third reference signal or the fourth reference signal includes at least one of the following: Synchronous signal block; Channel state information reference signal; Demodulation reference signal; Positioning reference signal; detecting a reference signal; Physical random access channel reference signal; A secondary link reference signal; Dedicated reference signal for channel measurements in smart surface devices.

11. The method according to any one of claims 2 to 5, characterized in that: The first reference signal, the second reference signal, the third reference signal or the fourth reference signal adopts at least one of the following methods: Time division multiplexing; Frequency division multiplexing; Code division multiplexing; Wave speed scan.

12. A beam control device for a smart surface device, characterized in that: include: A first measurement module, configured to obtain first channel information of an active unit of a smart surface device; wherein the first channel information is channel information between a network side device and the active unit; A second measurement module, used for the network side device to obtain second channel information of the active unit of the smart surface device; wherein the second channel information is channel information between the terminal and the active unit; A control module, configured for the network side device to determine control information of a unit array of the smart surface device according to the first channel information and the second channel information; wherein the unit array includes active units and passive units of the smart surface device; Wherein, the control module is used to: obtain third channel information and fourth channel information of the passive unit of the smart surface device through an interpolation algorithm according to the first channel information and the second channel information; wherein the third channel information is the channel information between the network side device and the passive unit, and the fourth channel information is the channel information between the terminal and the passive unit; and obtain control information of the unit array of the smart surface device according to the third channel information and the fourth channel information.

13. A beam control method for a smart surface device, characterized in that: include: In case the active unit of the smart surface device supports signal transmission, the terminal obtains a second reference signal transmitted by the active unit; In case the active unit of the smart surface device supports receiving signals, the terminal sends a fourth reference signal to the active unit; The second reference signal or the fourth reference signal is used to obtain second channel information of the active unit, the second channel information is channel information between the terminal and the active unit, the second channel information is used to determine control information of the unit array of the smart surface device with the first channel information, the unit array includes the active unit and the passive unit of the smart surface device, and the first channel information is channel information between the network side device and the active unit; The second channel information is used to determine the control information of the unit array of the smart surface device together with the first channel information, including: obtaining the third channel information and the fourth channel information of the passive unit of the smart surface device through an interpolation algorithm according to the first channel information and the second channel information; wherein the third channel information is the channel information between the network side device and the passive unit, and the fourth channel information is the channel information between the terminal and the passive unit; and obtaining the control information of the unit array of the smart surface device according to the third channel information and the fourth channel information.

14. The method according to claim 13, characterized in that After acquiring the second reference signal sent by the active unit, the method further includes: Channel measurement is performed on the second reference signal to obtain the second channel information and send the second channel information to the network side device.

15. The method according to claim 13, characterized in that The method further comprises: Acquire parameters of the second reference signal or the fourth reference signal configured by a network-side device.

16. The method according to claim 13, characterized in that The second reference signal or the fourth reference signal includes at least one of the following: Channel state information reference signal; Demodulation reference signal; Positioning reference signal; detecting a reference signal; Physical random access channel reference signal; A secondary link reference signal; Dedicated reference signal for channel measurements in smart surface devices.

17. The method according to claim 13, characterized in that The second reference signal or the fourth reference signal adopts at least one of the following methods: Time division multiplexing; Frequency Division Multiplexing Code division multiplexing; Wave speed scan.

18. A beam control device for a smart surface device, characterized in that: include: A first acquisition module, configured to acquire a second reference signal sent by the active unit of the smart surface device if the active unit supports sending a signal; A second acquisition module is configured to send a fourth reference signal to the active unit if the active unit of the smart surface device supports receiving signals; The second reference signal or the fourth reference signal is used to obtain second channel information of the active unit, the second channel information is channel information between the terminal and the active unit, the second channel information is used to determine control information of the unit array of the smart surface device with the first channel information, the unit array includes the active unit and the passive unit of the smart surface device, and the first channel information is channel information between the network side device and the active unit; The second channel information is used to determine the control information of the unit array of the smart surface device together with the first channel information, including: obtaining the third channel information and the fourth channel information of the passive unit of the smart surface device through an interpolation algorithm according to the first channel information and the second channel information; wherein the third channel information is the channel information between the network side device and the passive unit, and the fourth channel information is the channel information between the terminal and the passive unit; and obtaining the control information of the unit array of the smart surface device according to the third channel information and the fourth channel information.

19. A beam control method for a smart surface device, characterized in that: include: The smart surface device performs channel measurement through the active unit and the network measuring device; wherein the channel measurement between the active unit and the network side device is used to obtain the first channel information of the active unit, and the first channel information is the channel information between the network side device and the active unit; The smart surface device performs channel measurement with the terminal through the active unit; wherein the channel measurement between the active unit and the terminal is used to obtain second channel information, and the second channel information is the channel information between the terminal and the active unit; The smart surface device obtains control information of a unit array; wherein the control information is obtained based on the first channel information and the second channel information, and the unit array includes active units and passive units of the smart surface device; The control information is obtained based on the first channel information and the second channel information, including: the control information is obtained based on the third channel information and the fourth channel information; the third channel information is the channel information between the network side device and the passive unit, and the fourth channel information is the channel information between the terminal and the passive unit; the third channel information and the fourth channel information are obtained through an interpolation algorithm based on the first channel information and the second channel information.

20. The method according to claim 19, characterized in that In the case that the active unit supports sending a signal, the performing channel measurement through the active unit and the network measuring device includes: A first reference signal is sent to a network side device, so that the network side device obtains first channel information by performing channel measurement on the first reference signal.

21. The method according to claim 19, characterized in that In a case where the active unit supports sending a signal, the performing channel measurement with the terminal through the active unit includes: A second reference signal is sent to the terminal, so that the terminal obtains second channel information by performing channel measurement on the second reference signal.

22. The method according to claim 19, characterized in that In the case where the active unit supports receiving signals, the performing channel measurement through the active unit and the network measuring device includes: A third reference signal sent by a network-side device is received, and first channel information is obtained by performing channel measurement on the third reference signal.

23. The method according to claim 19, characterized in that In a case where the active unit supports receiving a signal, the performing channel measurement with the terminal through the active unit includes: A fourth reference signal sent by the terminal is received, and second channel information is obtained by performing channel measurement on the fourth reference signal.

24. The method according to claim 22 or 23, characterized in that The method further comprises: Report the first channel information and / or the second channel information to the network side device.

25. The method according to claim 24, characterized in that The obtaining of the control information of the cell array includes: Receive control information of the unit array sent by the network side device.

26. The method according to claim 19, characterized in that The obtaining of control information of the cell array includes: Obtaining third channel information and fourth channel information of the passive unit of the smart surface device according to the first channel information and the second channel information; According to the third channel information and the fourth channel information, control information of the unit array of the smart surface device is obtained; wherein the control information includes: the working status of each passive unit of the smart surface device.

27. The method according to claim 26, characterized in that The obtaining, according to the first channel information and the second channel information, the third channel information and the fourth channel information of the passive unit of the smart surface device comprises: According to the first channel information and the second channel information, the third channel information and the fourth channel information of the passive unit of the smart surface device are obtained by an interpolation algorithm.

28. The method according to claim 19, characterized in that The method further comprises: receiving a parameter requirement sent by the network side device, wherein the parameter requirement is used to enable the smart surface device to determine the working state of each passive unit of the smart surface device; The parameter requirements include at least one of the following: Beam direction; The channel measurement result between the network side device and the terminal; Power and phase relationships of multiple beams.

29. The method according to claim 19, characterized in that The method further comprises: The device parameters of the smart surface device reported to the network side device include at least one of the following: Type of device; Equipment size; Type of active unit; Location of active units; The number of active units; Capabilities of active units; Capabilities of passive units.

30. The method according to any one of claims 20 to 23, characterized in that The first reference signal, the second reference signal, the third reference signal or the fourth reference signal includes at least one of the following: Synchronous signal block; Channel state information reference signal; Demodulation reference signal; Positioning reference signal; detecting a reference signal; Physical random access channel reference signal; A secondary link reference signal; Dedicated reference signal for channel measurements in smart surface devices.

31. The method according to any one of claims 20 to 23, characterized in that The first reference signal, the second reference signal, the third reference signal or the fourth reference signal adopts at least one of the following methods: Time division multiplexing; Frequency division multiplexing; Code division multiplexing; Wave speed scan.

32. A beam control device for a smart surface device, characterized in that: include: A first communication module, configured to perform channel measurement between an active unit and a network measuring device; wherein the channel measurement between the active unit and the network side device is used to obtain first channel information of the active unit, and the first channel information is channel information between the network side device and the active unit; A second communication module, configured to perform channel measurement with a terminal through an active unit; wherein the channel measurement between the active unit and the terminal is used to obtain second channel information, and the second channel information is channel information between the terminal and the active unit; An execution module, configured to obtain control information of a unit array; wherein the control information is obtained based on the first channel information and the second channel information, and the unit array includes active units and passive units of the smart surface device; The control information is obtained based on the first channel information and the second channel information, including: the control information is obtained based on the third channel information and the fourth channel information; the third channel information is the channel information between the network side device and the passive unit, and the fourth channel information is the channel information between the terminal and the passive unit; the third channel information and the fourth channel information are obtained through an interpolation algorithm based on the first channel information and the second channel information.

33. A terminal, characterized in that: The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein when the program or instruction is executed by the processor, the steps of the beam control method of the smart surface device according to any one of claims 13 to 17 are implemented.

34. A network side device, characterized in that: The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein when the program or instruction is executed by the processor, the steps of the beam control method of the smart surface device according to any one of claims 1 to 11 are implemented.

35. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the beam control method of the smart surface device according to any one of claims 1 to 11, or implements the beam control method of the smart surface device according to any one of claims 13 to 17, or implements the steps of the beam control method of the smart surface device according to any one of claims 19 to 31.

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