Communication method and device

Abstract

A communication method and device are used for realizing grating lobe suppression so as to improve communication performance. The method can be realized through the following steps: a communication device obtains a first excitation coefficient and a second excitation coefficient; the communication device receives or sends signals through a communication unit of a first mode and a communication unit of a second mode of an antenna, the antenna comprises the communication unit of the first mode and the communication unit of the second mode, the first mode adopts a first excitation coefficient, and the second mode adopts a second excitation coefficient. Wherein the first excitation coefficient and the second excitation coefficient can be determined based on the configured beam scanning angle, the excitation coefficient configured for the first mode, and the excitation coefficient configured for the second mode.

Description

Communication method and device Technical Field

[0001] The present application relates to the field of mobile communication technologies, and in particular to a communication method and device. Background Art

[0002] The large-scale development of low Earth orbit (LEO) satellite communications requires high-gain and multi-beam antennas. High gain requires antenna arrays typically exceeding 1,000 elements. To meet scanning angle requirements, the spacing between elements must be less than half the wavelength of the carrier signal. A large number of elements leads to a dramatic increase in the number of RF channels, which in turn increases overall system power consumption. The industry is adopting a strategy of increasing the spacing between array elements while reducing the number of elements. For example, by setting the spacing between antenna elements to 1 wavelength, the number of antenna channels can be reduced by half compared to a traditional half-wavelength arrangement, thereby reducing power consumption.

[0003] However, increasing the spacing between unit arrays will lead to the generation of grating lobes, resulting in a decrease in communication performance.

[0004] Summary of the Invention

[0005] The present application provides a communication method and apparatus for achieving grating lobe suppression to improve communication performance.

[0006] In a first aspect, a communication method is provided. The method can be implemented by a communication device. The communication device can be a network device, a terminal device, a component in a network device, or a component in a terminal device. The components in this application may include, for example, at least one of a chip, a chip system, a processor, a transceiver, a processing unit, or a transceiver unit. Taking the execution subject as an example, the method can be implemented by the following steps: the communication device obtains a first excitation coefficient and a second excitation coefficient; the communication device receives or transmits a signal via a first-mode communication unit and a second-mode communication unit of an antenna, wherein the antenna includes a first-mode communication unit and a second-mode communication unit, the first mode uses a first excitation coefficient, and the second mode uses a second excitation coefficient. The first excitation coefficient and the second excitation coefficient can be determined based on the configured beam scanning angle, the excitation coefficient configured for the first mode, and the excitation coefficient configured for the second mode.

[0007] Based on the method described in the first aspect above, the communication unit in the first mode and the communication unit in the second mode of the communication device can respectively adopt the first excitation coefficient and the second excitation coefficient, and the communication device can receive or transmit signals through the communication unit in the first mode and the communication unit in the second mode. Since the first excitation coefficient and the second excitation coefficient are determined based on the beam scanning angle, the excitation coefficient configured for the first mode, and the excitation coefficient configured for the second mode, they can be used to suppress grating lobes, thereby improving communication performance.

[0008] In one possible implementation, the grating lobe position of the signal is nulled.

[0009] Based on this implementation, the first excitation coefficient and the second excitation coefficient can generate a null at the grating lobe position to achieve grating lobe suppression, thereby improving communication performance.

[0010] In a possible implementation, the first mode is a main mode, and the second mode is a high-order mode.

[0011] In a possible implementation, the communication device may further obtain configuration information, where the configuration information includes an excitation coefficient configured for the first mode and an excitation coefficient configured for the second mode; or, the configuration information includes the first excitation coefficient and the second excitation coefficient.

[0012] In one possible implementation, the communication device may send a first signal according to a configured beam scanning angle through a communication unit of a first mode and a communication unit of a second mode, wherein the communication unit of the first mode adopts the excitation coefficient configured in the first mode, and the communication unit of the second mode adopts the excitation coefficient configured in the second mode, and the first signal is used to determine the transmission channel matrix corresponding to the antenna, and the transmission channel matrix is ​​used to determine the first excitation coefficient and the second excitation coefficient.

[0013] Based on this implementation, a communication device can transmit a first signal via a communication unit in a first mode and a communication unit in a second mode. When transmitting the first signal, the communication unit in the first mode and the communication unit in the second mode each use configured excitation coefficients. The first excitation coefficient and the second excitation coefficient can be determined based on a transmission channel matrix corresponding to the first signal, thereby achieving reasonable determination of the first excitation coefficient and the second excitation coefficient.

[0014] In one possible implementation, the configured beam scanning angle includes a configured azimuth angle and a configured off-axis angle, the first excitation coefficient includes a first amplitude value and a first phase value, and the second excitation coefficient includes a second amplitude value and a second phase value; the configured azimuth angle is 0 degrees, the configured off-axis angle is 45 degrees, the first amplitude value is 0.9 times the second first amplitude value, and the phase difference between the first phase value and the second phase value is 76 degrees; or, the configured azimuth angle is 45 degrees, the configured off-axis angle is 45 degrees, the second amplitude value is 0.95 times the first amplitude value, and the phase difference between the first phase value and the second phase value is 49 degrees; or, the configured azimuth angle is 90 degrees, the configured off-axis angle is 45 degrees, the second amplitude value is 0.89 times the first amplitude value, and the phase difference between the first phase value and the second phase value is 83 degrees.

[0015] In a possible implementation, the amplitude of the communication unit in the first mode in the broadside direction is the maximum value, and the amplitude of the communication unit in the second mode in the broadside direction is the minimum value.

[0016] In a possible implementation, the communication unit in the first mode and the communication unit in the second mode are circularly polarized antennas.

[0017] In one possible implementation, the center-to-center distance between any two communication elements in the antenna is greater than 0.5 wavelengths, where the wavelength corresponds to the antenna's operating frequency. For example, setting the center-to-center distance between any two adjacent communication elements to 0.8 wavelengths can reduce the number of element arrays and channels by 37.5%, saving power.

[0018] In a second aspect, a communication device is provided. The device can implement the method described in the first aspect and any possible design thereof, and has the functions of the communication device described above.

[0019] In an optional implementation, the device may include a module that performs the method / operation / step / action described in the first aspect, and the module may be a hardware circuit, or software, or a combination of a hardware circuit and software. In an optional implementation, the device includes a processing unit (sometimes also referred to as a processing module) and a transceiver unit (sometimes also referred to as a transceiver module, a communication module, etc.). The transceiver unit is capable of implementing a sending function and a receiving function. When the transceiver unit implements the sending function, it may be referred to as a sending unit (sometimes also referred to as a sending module). When the transceiver unit implements the receiving function, it may be referred to as a receiving unit (sometimes also referred to as a receiving module). The sending unit and the receiving unit may be the same functional module, which is called a transceiver unit, and the functional module is capable of implementing a sending function and a receiving function; or, the sending unit and the receiving unit may be different functional modules, and the transceiver unit is a general term for these functional modules.

[0020] Exemplarily, when the device is used to execute the method described in the first aspect, the device may include a communication unit and a processing unit.

[0021] In a third aspect, an embodiment of the present application also provides a communication device, comprising a processor for executing a computer program (or computer executable instructions) stored in a memory, so that when the computer program (or computer executable instructions) is executed, the device executes the method in the first aspect and its various possible implementations.

[0022] In one possible implementation, the processor and memory are integrated;

[0023] In another possible implementation, the memory is located outside the communication device.

[0024] The communication device also includes a communication interface, which is used for the communication device to communicate with other devices, such as sending or receiving data and / or signals. Exemplarily, the communication interface can be a transceiver, circuit, bus, module or other type of communication interface.

[0025] In a fourth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium is used to store a computer program or instruction, which, when executed, enables the method shown in the first aspect and any possible implementation thereof to be implemented.

[0026] In a fifth aspect, a computer program product comprising instructions is provided, which, when executed on a computer, enables the method shown in the first aspect and any possible implementation thereof to be implemented.

[0027] In a sixth aspect, an embodiment of the present application further provides a communication device for executing the method in the above-mentioned first aspect and its various possible implementations.

[0028] In the seventh aspect, a chip system is provided, which includes a logic circuit (or it can be understood that the chip system includes a processor, and the processor may include a logic circuit, etc.), and may also include an input and output interface. The input and output interface can be used to input messages, and may also be used to output messages. The input and output interfaces may be the same interface, that is, the same interface can implement both the sending function and the receiving function; or, the input and output interfaces include an input interface and an output interface, the input interface is used to implement the receiving function, that is, for receiving messages; the output interface is used to implement the sending function, that is, for sending messages. The logic circuit can be used to perform operations other than the sending and receiving functions in the method shown in the first aspect and any possible implementation thereof; the logic circuit can also be used to transmit messages to the input and output interface, or receive messages from other communication devices from the input and output interface. The chip system can be used to implement the method shown in the first aspect and any possible implementation thereof. The chip system can be composed of a chip, or it can include a chip and other discrete devices.

[0029] Optionally, the chip system may further include a memory, which may be used to store instructions, and the logic circuit may call the instructions stored in the memory to implement corresponding functions.

[0030] In an eighth aspect, a communication system is provided, which may include a first communication device and a second communication device, wherein the first communication device may use the method shown in the first aspect to send signals, and the second communication device may use the method shown in the first scanning aspect to receive signals.

[0031] The technical effects brought about by the above second to eighth aspects can be found in the description of the above first aspect and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] FIG1 is a schematic diagram of the architecture of a wireless communication system provided in an embodiment of the present application;

[0033] FIG2 is a schematic diagram of the architecture of another wireless communication system provided in an embodiment of the present application;

[0034] FIG3 is a schematic diagram of the architecture of another wireless communication system provided in an embodiment of the present application;

[0035] FIG4 is a schematic structural diagram of an active phased array antenna provided in an embodiment of the present application;

[0036] FIG5 is a flow chart of a communication method provided in an embodiment of the present application;

[0037] FIG6 is a schematic structural diagram of an array antenna provided in an embodiment of the present application;

[0038] FIG7 is a schematic structural diagram of a unit array provided in an embodiment of the present application;

[0039] FIG8 is a schematic structural diagram of an antenna channel provided in an embodiment of the present application;

[0040] FIG9 is a schematic diagram of the positions of a signal main lobe and a grating lobe provided in an embodiment of the present application;

[0041] FIG10 is a flow chart of a method for determining an excitation coefficient according to an embodiment of the present application;

[0042] FIG11 is a schematic diagram of a receiving antenna position provided in an embodiment of the present application;

[0043] FIG12 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0044] FIG13 is a schematic structural diagram of another communication device provided in an embodiment of the present application;

[0045] FIG14 is a schematic structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0046] The present application provides a communication method and apparatus. The method and apparatus are based on the same inventive concept. Since the method and apparatus solve similar problems, the implementation of the apparatus and method can refer to each other, and the repetitive parts will not be repeated.

[0047] In the description of this application, words such as "first" and "second" are used solely for descriptive purposes and should not be construed as indicating or implying relative importance or order. It should be noted that this application does not limit the order of appearance of "first," "second," etc. For example, "second" may appear before "first," and this is not a limitation in this application.

[0048] In the description of this application, "at least one (kind)" refers to one (kind) or more (kinds), and more (kinds) refers to two (kinds) or more than two (kinds). "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, c can be single or multiple. In the description of this application, " / " means "or", for example, a / b means a or b.

[0049] Figure 1 is a schematic diagram of the architecture of a communication system 1000 used in an embodiment of the present application. As shown in Figure 1 , the communication system includes a radio access network 100 and a core network (CN) 200. Optionally, the communication system 1000 may also include the Internet 300. The radio access network 100 may include at least one radio access network device (such as 110a and 110b in Figure 1 ) and at least one terminal (such as 120a-120j in Figure 1 ). The terminal is connected to the radio access network device wirelessly, and the radio access network device is connected to the core network device wirelessly or by wire. The core network device and the radio access network device may be independent and distinct physical devices, or the functions of the core network device and the logical functions of the radio access network device may be integrated into the same physical device, or a single physical device may integrate some of the functions of the core network device and some of the functions of the radio access network device. Terminals and radio access network devices may be connected to each other by wired or wireless means. FIG1 is only a schematic diagram. The communication system may further include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG1 .

[0050] Radio access network equipment is the access device that terminals use to wirelessly access a communication system. Radio access network equipment can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in fifth-generation (5G) mobile communication systems, a next-generation base station in sixth-generation (6G) mobile communication systems, a base station in future mobile communication systems, a WiFi system, a long-range radio (LoRa) system, or an access node in an Internet of Vehicles system. Radio access network equipment can also be a module or unit that performs some of the functions of a base station, for example, a centralized unit (CU) or a distributed unit (DU). The CU here completes the functions of the radio resource control protocol and the packet data convergence protocol (PDCP) of the base station, and can also complete the functions of the service data adaptation protocol (SDAP); the DU completes the functions of the radio link control layer and the medium access control (MAC) layer of the base station, and can also complete the functions of part of the physical layer or all of the physical layer. For the specific description of each of the above protocol layers, please refer to the relevant technical specifications of the 3rd Generation Partnership Project (3GPP). The wireless access network device can be a macro base station (such as 110a in Figure 1), a micro base station or an indoor station (such as 110b in Figure 1), or a relay node or a donor node, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the wireless access network device. For the convenience of description, the network device is used as the abbreviation of the wireless access network device, and the base station is used as an example of the wireless access network device.

[0051] A terminal is a device with wireless transceiver capabilities that can send signals to a base station or receive signals from a base station. A terminal may also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city, etc. A terminal can be a mobile phone, tablet computer, computer with wireless transceiver capabilities, wearable device, vehicle, airplane, ship, robot, robotic arm, smart home device, etc. The embodiments of this application do not limit the specific technology and specific device form adopted by the terminal.

[0052] Base stations and terminals can be fixed or mobile. They can be deployed on land, indoors or outdoors, handheld or vehicle-mounted; on water; or on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of base stations and terminals.

[0053] The roles of base stations and terminals can be relative. For example, the helicopter or drone 120i in Figure 1 can be configured as a mobile base station. To terminals 120j accessing the wireless access network 100 via 120i, terminal 120i is a base station. However, to base station 110a, 120i is a terminal, meaning that communication between 110a and 120i occurs via a wireless air interface protocol. Of course, communication between 110a and 120i can also occur via a base station-to-base station interface protocol. In this case, 120i is also a base station relative to 110a. Therefore, base stations and terminals can be collectively referred to as communication devices. 110a and 110b in Figure 1 can be referred to as communication devices with base station functionality, while 120a-120j in Figure 1 can be referred to as communication devices with terminal functionality.

[0054] Communication between base stations and terminals, between base stations, and between terminals can be carried out through authorized spectrum, unauthorized spectrum, or both; communication can be carried out through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0055] In the embodiments of the present application, the functions of the base station may also be performed by a module (such as a chip) in the base station, or by a control subsystem that includes the base station functions. The control subsystem that includes the base station functions here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, and smart city. The functions of the terminal may also be performed by a module (such as a chip or modem) in the terminal, or by a device that includes the terminal functions.

[0056] In this application, a base station sends downlink signals or downlink information to a terminal, and the downlink information is carried on a downlink channel; the terminal sends uplink signals or uplink information to the base station, and the uplink information is carried on an uplink channel. In order to communicate with the base station, the terminal needs to establish a wireless connection with the cell controlled by the base station. The cell with which the terminal has established a wireless connection is called the serving cell of the terminal. When the terminal communicates with the serving cell, it will also be subject to interference from signals in neighboring cells.

[0057] The present application can also be applied to non-terrestrial networks (NTN) communications. NTN is an important component of the fifth generation (5G) and future wireless communication networks. It is defined as a network or network segment that uses transmission equipment such as airborne or spaceborne aircraft as relay nodes or base stations. Compared with traditional terrestrial networks, the biggest feature of non-terrestrial networks is that base stations are deployed in the air or in space, or base stations transmit signals to terminal devices through non-terrestrial equipment in the air or in space.

[0058] Satellites can be categorized by their altitude, or the height of their orbit, into geostationary Earth orbit (GEO), medium Earth orbit (MEO), and low Earth orbit (LEO). GEO is a geostationary Earth orbit, in which satellites remain stationary relative to Earth. The GEO orbital altitude is typically 35,786 kilometers (km). LEO and MEO are collectively referred to as non-geostationary orbits (NGSO). Satellites in these orbits move at high speeds relative to Earth. LEO's orbital altitude is typically 160 to 2,000 km, while MEO's is 2,000 to 35,786 km. NGSOs are further categorized into geostationary cells (earth moving cells) and geostationary cells (earth fixed cells), depending on whether the satellite's beam moves with it. For an earth moving cell, the cell moves relative to the ground, and the satellite's beam follows the satellite's movement. For an earth fixed cell, the cell remains fixed relative to the ground for a certain period of time. The satellite antenna uses its beamforming capability to keep the beam fixed to a specific area on the ground for a certain period of time. For example, a LEO satellite at an orbital altitude of 600 km can move at speeds of up to 7 kilometers per second (km / s). For a cell with a diameter of 100 km, the satellite's service time is only a few minutes.

[0059] In NTN communications, NTN equipment can operate in two modes: transparent and regenerative. Based on the NTN equipment's operating mode, NTN communication architectures can be categorized into two types: First, a transparent forwarding architecture, in which NTN equipment can act as relays or amplifiers, performing RF filtering and amplification, regenerating physical layer signals. NTN equipment can be responsible for Layer 1 (L1) relaying, performing physical layer forwarding, and is invisible to higher layers. Second, a regenerative architecture, in which NTN equipment performs the processing functions of access network equipment. For example, satellites operating in regenerative mode can be categorized as regenerative satellites without inter-satellite links (ISLs) between satellites; regenerative satellites with ISLs, in which satellites have interfaces for direct data exchange, where the ISLs are Xn ports; or regenerative satellites with the processing functions of distributed units (DUs) of access network equipment, in which case the satellites act as DUs.

[0060] For example, Figure 2 shows a schematic diagram of an NTN scenario applicable to embodiments of the present application. This NTN scenario can be an application scenario of a transparent forwarding architecture. In the scenario shown in Figure 2, a terminal device can communicate with the 5G core network through the access network, and then connect to the data network (DN) through the 5G CN. Satellites and NTN gateways can serve as relay devices between the terminal device and the access network device, or as remote radio units (RRUs) of the access network device.

[0061] For example, Figure 3 illustrates another NTN scenario applicable to embodiments of the present application. This NTN scenario can be an application scenario of a regenerative architecture. In the scenario shown in Figure 3, a satellite can serve as an access network device, forming an access network with an NTN gateway and communicating with the core network through the NTN gateway. Furthermore, the satellite can provide wireless access services to terminal devices. Figure 3 exemplifies a regenerative satellite architecture without intersatellite links.

[0062] It should be noted that Figures 2 and 3 only illustrate one satellite and one NTN gateway. In actual use, an architecture with multiple satellites and / or multiple NTN gateways may be adopted as needed. Each satellite may provide services to one or more terminal devices, each NTN gateway may correspond to one or more satellites, and each satellite may correspond to one or more NTN gateways, although this embodiment of the present application does not specifically limit this. It should be understood that Figures 2 and 3 are merely examples of NTN scenarios, which may also include other specific scenarios, and this application does not limit this.

[0063] It can be understood that in the NTN network, access network equipment can be deployed on satellites or other non-terrestrial equipment, or on the ground.

[0064] In this application, the NTN network supports communication between UEs and non-terrestrial devices, where the non-terrestrial devices can be aircraft or satellites with the processing functions of access network devices in a regeneration architecture, or can be deployed in the air or in the atmosphere as relay nodes or amplifiers with the processing functions of access network devices in a transparent forwarding architecture. In the architecture shown in Figure 2 or Figure 3, the non-terrestrial devices can include satellites (or aircraft, etc.).

[0065] Currently, in LEO satellite communication scenarios, onboard antennas generally have more than 1,000 element arrays. In order to meet the antenna scanning angle requirements, the spacing between the antenna element arrays is less than half a wavelength. Unless otherwise specified, the spacing in this application refers to the center spacing between the arrays. However, a large number of element arrays and a small array spacing will lead to a sharp increase in the number of RF channels, thereby increasing the power consumption of the entire system. The current means of reducing power consumption is to reduce the spacing between antenna element arrays, for example, using a spacing of 1 wavelength or other spacing greater than half a wavelength between element arrays. Increasing the spacing between element arrays will produce grating lobes.

[0066] Furthermore, the size of the transmitter and receiver (TR) components of current active phased array antennas approaches one wavelength of the antenna. As shown in Figure 4, the size constraints of the TR groups make it impossible to design a design where the spacing between each element is less than half a wavelength. In other words, d2 > d1 in Figure 4. Consequently, the center-to-center spacing between two element arrays with an edge spacing of d2 may exceed half a wavelength of the antenna, increasing the spacing between element arrays and thus generating grating lobes.

[0067] As you can understand, the presence of grating lobes not only reduces the antenna's beam scanning range and beam pointing accuracy, but also interferes with other systems. Furthermore, since the energy of grating lobes is often comparable to that of the main lobe, this is equivalent to a 3dB reduction in the main lobe energy. Therefore, the presence of grating lobes can degrade antenna communication performance.

[0068] For example, to suppress grating lobes and improve antenna communication performance, an embodiment of the present application provides a communication method. The method is described below in conjunction with FIG5 . FIG5 , for example, illustrates the method using a communication device as the execution subject. The communication device may be deployed in a network device, a terminal device, a non-terrestrial device, or other communication device. The communication device may be deployed with an antenna, and the spacing between multiple element arrays of the antenna may be greater than or equal to half a wavelength. For example, the spacing between the element arrays of the antenna is 0.8λ. Compared to a configuration of 0.5λ, the number of element arrays and channels can be reduced by 37.5%, thereby saving power consumption. Here, λ = c / f, where c is the speed of light and f is the operating frequency of the antenna. Alternatively, the communication device may be deployed with a large-pitch array antenna. As shown in FIG5 , the communication device may be used to receive signals from other communication devices or to send signals to other communication devices. In a downlink communication process, the communication device may be a network device, and the other communication device may be a terminal device; in an uplink communication process, the communication device may be a terminal device, and the other communication device may be a network device.

[0069] As shown in FIG5 , the communication method provided in the embodiment of the present application may include the following steps:

[0070] S101: The communication device obtains a first excitation coefficient and a second excitation coefficient.

[0071] The first excitation coefficient and the second excitation coefficient correspond to the first mode and the second mode, respectively. The communication device can configure the first excitation coefficient to the communication unit of the first mode of the antenna, that is, the first mode uses the first excitation coefficient. The communication device can also configure the second excitation coefficient to the communication unit of the second mode of the antenna, that is, the second mode uses the second excitation coefficient.

[0072] It is understood that the antenna in this application may include a first mode communication unit and a second mode communication unit. As shown in FIG6 , the antenna may include multiple unit arrays, each of which may include a first mode communication unit and a second mode communication unit.

[0073] Optionally, each communication unit is a radiator. The radiator in the communication unit of the first mode and the radiator in the communication unit of the second mode have different feeding points. As shown in FIG7 , the radiators of the first mode and the second mode have different feeding points, which are represented as port 1 and port 2 in FIG7 . For example, taking the first mode as the main mode and the second mode as the high-order mode, the main mode is located above the high-order mode or in the same plane. Optionally, the radiator of the second mode is located above the radiator of the first mode.

[0074] As shown in FIG8 , at least one of port 1 and port 2 can be connected to a multifunctional device having an amplitude modulation function and / or a phase modulation function. For example, the device having the amplitude modulation function is an amplitude modulator, and the device having the phase modulation function is a phase modulator. As shown in FIG8 , port 2 can be connected to a phase modulator and an amplitude modulator to adjust the amplitude and / or phase of the signal of port 2 so that the signal of port 1 and the signal of port 2 have a certain amplitude difference and / or phase difference. Optionally, in actual applications, port 1 and port 2 can also be connected to different amplitude modulators and / or phase modulators, respectively. As an example, port 1 can be used to excite the radiator of the second mode to operate in a high-order mode, such as the transverse magnetic (TM) 21 mode, and port 2 can be used to excite the radiator of the first mode to operate in the main mode, such as TM10 or TM01.

[0075] Further optionally, the direction of the maximum amplitude of the communication unit in the first mode is different from the direction of the maximum amplitude of the communication unit in the second mode. Still taking Figure 7 as an example, the direction of the maximum amplitude of the communication unit in the second mode is 0°, which is consistent with the broadside direction of the antenna; the maximum amplitude of the communication unit in the first mode is approximately 40°, which is inconsistent with the broadside direction. Alternatively, the amplitude of the communication unit in the first mode is 0 in the broadside direction. For example, as shown in Figure 7, the amplitude of the communication unit in the first mode is 0 in the 0° direction. The broadside direction refers to the direction perpendicular to the array plane.

[0076] In this application, the dominant mode refers to the mode with the longest cutoff wavelength. Modes other than the dominant mode are called higher-order modes. If the wave propagates along the Z axis, TMxy means the number of half-wavelengths of the communication unit on the X axis is x, and the number of half-wavelengths on the Y axis is y. The antennas described in this application are also called hybrid-mode antennas.

[0077] It can be understood that the first excitation coefficient and the second excitation coefficient include an amplitude value coefficient and a phase value coefficient, respectively. In this application, for the convenience of description, the amplitude value included in the first excitation coefficient may be referred to as the first amplitude value, the phase value included in the first excitation coefficient may be referred to as the first phase value, the amplitude value included in the second excitation coefficient may be referred to as the second amplitude value, and the phase value included in the second excitation coefficient may be referred to as the second phase value. The first amplitude value and the first phase value can be used to excite the communication unit in the first mode, and the second amplitude value and the second phase value can be used to excite the communication unit in the second mode.

[0078] The first excitation coefficient and the second excitation coefficient are determined based on the following factors:

[0079] (1) Configured beam scanning angle.

[0080] The configured beam scanning angle includes the configured azimuth angle and the configured off-axis angle. In the present application, the angle can be expressed as (a, b), where a represents the azimuth angle and b represents the off-axis angle. For example, for a single-mode large-spacing array antenna (i.e., all communication units use a large-spacing array antenna of the same mode), when the antenna scanning angle is (0°, 45°), as shown in FIG9 , it can be obtained through simulation or calculation that a grating lobe with the same energy as the main lobe (0°, 45°) will be generated in the direction of (0°, -45°). That is to say, when the configured azimuth angle is 0° and the configured off-axis angle is 45°, the single-mode large-spacing array antenna may generate grating lobes at the 0° azimuth angle and the 45° off-axis angle position. Therefore, it can be seen that the grating lobe angle is related to the configured beam scanning angle.

[0081] (2) Excitation coefficient configured for the first mode.

[0082] The excitation coefficient configured for the first mode refers to the excitation coefficient referred to by the antenna control unit for the communication unit of the first mode. In the present application, the excitation coefficient may include an amplitude value and a phase value, so that the communication unit of the first mode can send and / or receive signals through the configured amplitude value and phase value. It can be understood that the excitation coefficient and the first excitation coefficient can be different. It can also be understood that the first excitation coefficient is an excitation coefficient adjusted based on the excitation coefficient configured for the first mode, wherein the purpose of the adjustment is to generate a null at the grating lobe position.

[0083] (3) Excitation coefficient configured for the second mode.

[0084] The excitation coefficients configured for the second mode refer to the excitation coefficients that the antenna control unit specifies for the communication unit in the second mode. The communication unit in the second mode can transmit and / or receive signals using the configured amplitude and phase values. Similar to the relationship between the first excitation coefficients and the excitation coefficients configured for the first mode, the second excitation coefficients can be understood as excitation coefficients adjusted based on the excitation coefficients configured for the second mode, where the purpose of the adjustment is to produce a null at the grating lobe position.

[0085] It can be understood that for a hybrid mode antenna, the excitation coefficient of the first mode configuration, the excitation coefficient of the second mode configuration, and the configured beam scanning angle are all influencing factors of the grating lobe position. Therefore, at least one of the excitation coefficient of the first mode configuration, the excitation coefficient of the second mode configuration, and the configured beam scanning angle is used as the basis for determining the first excitation coefficient and the second excitation coefficient, so that the first excitation coefficient and the second excitation coefficient can be used to generate nulls to suppress the grating lobes.

[0086] It can also be said that the first amplitude value, the first phase value, the second amplitude value, and the second phase value are determined according to the configured beam scanning angle, the excitation coefficient configured for the first mode, and the excitation coefficient configured for the second mode.

[0087] Optionally, in S101, the communication device may obtain configuration information of the first excitation coefficient and the second excitation coefficient, and thus obtain the first excitation coefficient and the second excitation coefficient according to the configuration information. For example, the configuration information may be set during antenna testing or factory delivery.

[0088] As a possible implementation method, the first excitation coefficient and the second excitation coefficient can be configured at the antenna port. Still taking Figure 8 as an example, port 1 and port 2 correspond to the communication units of the first mode and the second mode, respectively. Therefore, the amplitude modulator and / or phase modulator corresponding to port 2 can be changed to realize the setting of the first excitation coefficient of the communication unit of the first mode and the communication of the second mode. For example, the excitation coefficients configured for port 1 and port 2 are both expressed as (B0, β0), then the excitation coefficients configured for the communication unit of the first mode and the communication unit of the second mode are both (B0, β0). At this time, the amplitude modulator and phase modulator corresponding to port 2 may not produce amplitude difference and phase difference. In this example, B0 represents the amplitude parameter, which is used to configure the amplitude modulator, and β0 represents the phase parameter, which is used to configure the phase modulator.

[0089] Alternatively, the excitation coefficients may be configured for the communication unit in the first mode and for the communication unit in the second mode. For example, the excitation coefficients configured for the ports are expressed as (B10, β10; B20, β20), where B10 and β10 correspond to the communication unit in the first mode, and B20 and β20 correspond to the communication unit in the second mode. In this example, the amplitude modulator corresponding to port 2 shown in FIG8 can generate an amplitude difference of (B20-B10), and the phase modulator can generate a phase difference of (β20-β10). If port 1 and port 2 correspond to an amplitude modulator and a phase modulator, respectively, the amplitude modulator and phase modulator corresponding to port 1 are configured using (B10, β10), and the amplitude modulator and phase modulator corresponding to port 2 are configured using (B20, β20).

[0090] As an example, the communication unit of the first mode and / or the communication unit of the second mode can be a circularly polarized antenna. For example, the communication unit of the first mode can be a circularly polarized microstrip antenna that combines TM10 and TM01. The communication unit of the second mode can be a circular circularly polarized microstrip antenna with a TMn1 mode, or a circular circularly polarized microstrip antenna with a TM2m mode, where n = 2, 3, 4, ..., and m = 1, 2, 3, ....

[0091] As a possible implementation method, the action of the communication device obtaining the first excitation coefficient and the second excitation coefficient in S101 can be understood as the communication device obtaining the configuration information of the first excitation coefficient and the second excitation coefficient respectively; or, it can be understood as the communication device configuring the first excitation coefficient and the second excitation coefficient; or, it can be understood as the communication device activating or adopting a communication unit of a first mode configured with the first excitation coefficient, and activating or adopting a communication unit of a second mode configured with the second excitation coefficient.

[0092] S102: The communication device receives or sends a signal via the first mode communication unit and the second mode communication unit of the antenna.

[0093] In S102, when transmitting or receiving a signal via the antenna, the first mode uses the first excitation coefficient, and the second mode uses the second excitation coefficient. It will be appreciated that, in this application, the first excitation coefficient and the second excitation coefficient can be used to generate a null at the grating lobe position to suppress the grating lobe, thereby improving signal quality. The null is caused by the first excitation coefficient and the second excitation coefficient.

[0094] The following describes the method for determining the first excitation coefficient and the second excitation coefficient in conjunction with the process shown in Figure 10. The process for determining the first excitation coefficient and the second excitation coefficient shown in Figure 10 can be performed by a communication device or other device used to configure the antenna excitation coefficients of a communication device. This process can be performed before the antenna or communication device leaves the factory. In other words, the first excitation coefficient and the second excitation coefficient can be set at the factory, so there is no need to additionally set the first excitation coefficient and the second excitation coefficient after the communication device or communication device leaves the factory. Furthermore, it is not ruled out that this process can be performed after the antenna or communication device leaves the factory.

[0095] In FIG10 , a communication device and an excitation coefficient determination device are used as the execution entities for explanation. The excitation coefficient determination device can obtain the received signal of the first signal and determine the first excitation coefficient and the second excitation coefficient. FIG10 specifically illustrates the case where a receiving antenna is deployed in the excitation coefficient determination device. For example, the excitation coefficient determination device can be an antenna testing device or apparatus, etc. In actual applications, the excitation coefficient determination device and the receiving antenna can also be set separately. In addition, the communication device and the excitation coefficient determination device can also be set as one body. For example, the network device can deploy antennas of a first mode communication unit and a second mode communication unit. The network device can determine the first excitation coefficient and the second excitation coefficient and configure the first mode communication unit and the second mode communication unit accordingly.

[0096] Exemplarily, the process may include the following steps:

[0097] S201: The communication device transmits a first signal to the receiving antenna through the first mode communication unit and the second mode communication unit of the antenna according to the configured beam scanning angle. In the following, to distinguish it from the receiving antenna, the antenna in the communication device is called the transmitting antenna.

[0098] When transmitting a first signal, a communication unit of a first-mode transmitting antenna uses the excitation coefficients configured in the first mode, and a communication unit of a second-mode transmitting antenna uses the excitation coefficients configured in the second mode. The first signal is used to determine a transmission channel matrix corresponding to the antenna, and the transmission channel matrix is ​​used to determine the first excitation coefficient and the second excitation coefficient.

[0099] Optionally, the communication device may obtain configuration information, including excitation coefficients configured for the first mode and excitation coefficients configured for the second mode. For example, the configuration information may be determined based on the user's location information or access information. It is understood that the configuration information indicates the excitation coefficients of the antenna before adjustment.

[0100] In S201, the receiving antenna may include a first receiving antenna and a second receiving antenna, which are respectively arranged at a main lobe position and a grating lobe position, wherein the main lobe position and the grating lobe position are determined according to a configured beam scanning angle.

[0101] For example, as shown in Figure 9, when the antenna scanning angle is (0°, 45°), the main lobe and grating lobe directions are (0°, 45°) and (0°, -45°), respectively. Therefore, as shown in Figure 11, the first receiving antenna and the second receiving antenna in this example are set at the 45° direction and the -45° direction, respectively. In each unit array, when the second-mode communication unit is located above the first-mode communication unit, and the feeding port of the first-mode communication unit is port 1 and the feeding port of the second-mode communication unit is port 2, it can be considered that port 1 and port 2 are located at different heights.

[0102] S202: The excitation coefficient determination device determines the channel matrix H corresponding to the first signal according to the signal received by the receiving antenna through testing or simulation software.

[0103] Among them, H satisfies: H=[S tr ] T *[S tr ].

[0104] Among them, [S tr ] represents a transmission coefficient matrix between a transmitting antenna and a receiving antenna of a communication device. The transmitting antenna may correspond to multiple antenna ports, each antenna port corresponds to at least one unit array, and each unit array includes a communication unit of a first mode and a communication unit of a second mode. The subscript t represents a transmitting antenna, and the subscript r represents a receiving antenna. [A] T It is understood that, as shown in FIG8 , each antenna port corresponds to a channel.

[0105] For example, S tr It can be obtained by calculation or simulation. For example, S tr It can be determined based on the energy of the signal received by each receiving antenna and the signal energy of the transmitted signal.

[0106] S203: The excitation coefficient determining device determines a first excitation coefficient and a second excitation coefficient according to the channel matrix H corresponding to the first signal.

[0107] Exemplarily, the first excitation coefficient and the second excitation coefficient may be determined according to an eigenvalue solution process of the matrix Tarray.

[0108] Wherein, the matrix Tarray satisfies: Tarray=W*H.

[0109] Where W is the gain ratio parameter between the main lobe energy and the grating lobe energy. For example, if the grating lobe energy is reduced by 20 dB to achieve nulling, W can indicate that the gain ratio between the main lobe energy and the grating lobe energy is 100:1. For example, W is a binary matrix with two elements of 100 and 1, respectively.

[0110] H is the transmission matrix between the transmitting antenna and the receiving antenna. As described above, H can be calculated based on S tr get.

[0111] For example, the eigenvectors of the matrix Tarray can be determined by performing SVD decomposition on the matrix Tarray. The result of the SVD decomposition can represent the adjustment value of the excitation coefficient corresponding to each antenna port of the antenna, expressed as (Ai1, αi1; Ai2, αi2), i = 0, 2, ..., P, and P is the total number of antenna ports. Ai1 represents the amplitude adjustment value of the communication unit of the first mode corresponding to the i-th antenna port, αi1 represents the phase adjustment value of the communication unit of the first mode corresponding to the i-th antenna port, Ai2 represents the amplitude adjustment value of the communication unit of the second mode corresponding to the i-th antenna port, and αi2 represents the phase adjustment value of the communication unit of the second mode corresponding to the i-th antenna port. The i-th communication unit of the first mode is arranged to overlap with the i-th communication unit of the second mode.

[0112] Assuming that the excitation coefficient configured for the i-th antenna port when sending the first signal is expressed as (B0, β0), the adjusted excitation coefficient of the port is expressed as (B0*Ai1, β0+αi1; B0*Ai2, β0+αi2). It can be understood that (B0, β0) can be considered as the excitation coefficient configured for the i-th antenna port when sending the first signal, and (B0*Ai1, β0+αi1; B0*Ai2, β0+αi2) can be considered as the excitation coefficient used to generate a null at the grating lobe position. Among them, the first excitation coefficient is (B0*Ai1, β0+αi1), and the first excitation coefficient corresponding to the communication unit that can be configured in the first mode is (B0*Ai2, β0+αi2).

[0113] It is understood that the first amplitude value and the second amplitude value can have multiple combinations. This application only stipulates that the first amplitude value and the second amplitude value satisfy a certain proportional relationship, and does not limit the specific values ​​of the first amplitude value and the second amplitude value. For example, for the i-th antenna port, the first amplitude value and the second amplitude value are respectively calculated as (B0*Ai1) and (B0*Ai2), and the difference between the first amplitude value and the second amplitude value is (Ai1 / Ai2) times.

[0114] In addition, the first phase value and the second phase value can have multiple combinations. This application only limits the first phase value and the second phase value to a certain phase difference relationship, and does not limit the specific values ​​of the first phase value and the second phase value. For example, the first phase value and the second phase value are respectively calculated as (β0+αi1) and (β0+αi2), and the difference between the first phase value and the second phase value is (αi1-αi2) degrees.

[0115] The following examples illustrate some possible combinations of the first excitation coefficient and the second excitation coefficient. Optionally, the combination of the first excitation coefficient and the second excitation coefficient can be determined according to the method shown in FIG13 .

[0116] As an example, when the configured beam scanning angle is (0°, 45°), the first amplitude value is 0.9 times the second amplitude value, and the phase difference between the first phase value and the second phase value is 76 degrees. For example, the first amplitude value is 0.9, the second amplitude value is 1, the first phase value is 76 degrees, and the second phase value is 0 degrees. The units of the amplitude values ​​in this application can be watts (W), milliwatts (mW), or kilowatts (kW), etc., without specific limitation.

[0117] As another example, when the configured beam scanning angle is (45°, 45°), the second amplitude value is 0.95 times the first amplitude value, and the phase difference between the first phase value and the second phase value is 49 degrees. For example, if the first amplitude value is 1 and the second amplitude value is 0.95, the first phase value is 68.5 degrees, and the second phase value is 19.5 degrees.

[0118] As another example, when the configured beam scanning angle is (90°, 45°), the second amplitude value is 0.89 times the first amplitude value, and the phase difference between the first phase value and the second phase value is 83 degrees. For example, if the first amplitude value is 1 and the second amplitude value is 0.95, the first phase value is 154 degrees, and the second phase value is 71 degrees.

[0119] S204: The excitation coefficient determination device sends configuration information to the communication device, which is used to indicate the first excitation coefficient and the second excitation coefficient.

[0120] It can be understood that if the excitation coefficient determination device and the communication device are integrated, or the two are the same device or apparatus, then S204 does not need to be performed.

[0121] Based on the method shown in FIG10 , the first excitation coefficient and the second excitation coefficient can be reasonably determined.

[0122] It is understandable that in order to implement the functions in the above embodiments, the embodiments of the present application also provide a communication device. The communication device may include hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should readily appreciate that, in combination with the units and method steps of each example described in the embodiments disclosed in this application, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in hardware or in a manner driven by computer software depends on the specific application scenario and design constraints of the technical solution.

[0123] Figures 12 to 14 are schematic diagrams of the structure of a possible communication device provided by an embodiment of the present application. This communication device can be used to implement the corresponding functions of the above-mentioned method embodiment, thereby also achieving the beneficial effects of the above-mentioned method embodiment. In one possible implementation, the communication device can be a network device or terminal device as shown in Figure 1. For relevant details and effects, please refer to the description of the above-mentioned embodiment.

[0124] As shown in FIG12 , the communication device 1200 includes a processing unit 1210 and a transceiver unit 1220 , wherein the transceiver unit 1220 may also be a transceiver unit or an input / output interface, etc. The communication device 1200 may be used to implement the functions of the communication device in the method embodiments shown in FIG5 and / or FIG10 .

[0125] For example, when implementing the method embodiment shown in Figure 5, the processing unit 1210 may be used to obtain the first excitation coefficient and the second excitation coefficient. The transceiver unit 1220 may be used to receive or send signals through the first mode communication unit and the second mode communication unit of the antenna.

[0126] Optionally, the transceiver unit 1220 may be further configured to obtain configuration information, which may include an excitation coefficient configured for the first mode and an excitation coefficient configured for the second mode, or include the first excitation coefficient and the second excitation coefficient.

[0127] Optionally, the transceiver unit 1220 can also be used to send a first signal according to the configured beam scanning angle, wherein the communication unit of the first mode adopts the excitation coefficient configured for the first mode, and the communication unit of the second mode adopts the excitation coefficient configured for the second mode, and the first signal is used to determine the transmission channel matrix corresponding to the antenna, and the transmission channel matrix is ​​used to determine the first excitation coefficient and the second excitation coefficient.

[0128] The description of the above technical terms can refer to the description of the method embodiment part, and will not be elaborated here.

[0129] It is understood that the division of modules in the embodiments of the present application is illustrative and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional modules in the various embodiments of the present application may be integrated into a single processor, or may exist physically separately, or two or more modules may be integrated into a single module. The aforementioned integrated modules may be implemented in the form of hardware or software functional modules.

[0130] As shown in Figure 13, a communication device 1300 provided in an embodiment of the present application is used to implement the communication method provided in the present application. The communication device 1300 can be a communication device that applies the communication method, or a component in a communication device, or a device that can be used in conjunction with a communication device. The communication device 1300 can be a signal transmitting end or a receiving end. Specifically, the communication device 1300 can be a chip system or a chip. In the embodiment of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices. The communication device 1300 includes at least one processor 1320 for implementing the communication method provided in the embodiment of the present application. The communication device 1300 can also include an input / output interface 1310, and the output interface can also be referred to as an input / output interface. In the embodiment of the present application, the input / output interface 1310 can be used to communicate with other devices via a transmission medium, and its functions may include sending and / or receiving. For example, when the communication device 1300 is a chip, it transmits to other chips or devices via the input / output interface 1310. The processor 1320 can be used to implement the method shown in the above method embodiment.

[0131] Exemplarily, the processor 1320 may be used to execute actions executed by the processing unit 1210 , and the input / output interface 1310 may be used to execute actions executed by the transceiver unit 1220 , which will not be described in detail.

[0132] Optionally, the communication device 1300 may further include at least one memory 1330 for storing program instructions and / or data. The memory 1330 is coupled to the processor 1320. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units, or modules, which can be electrical, mechanical, or other forms, and is used for information exchange between devices, units, or modules. The processor 1320 may operate in conjunction with the memory 1330. The processor 1320 may execute program instructions stored in the memory 1330. At least one of the at least one memory may be integrated with the processor.

[0133] In an embodiment of the present application, the memory 1330 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), or may be a volatile memory (volatile memory), such as a random-access memory (RAM). A memory is any other medium that can be used to carry or store a desired program code in the form of an instruction or data structure and can be accessed by a computer, but is not limited thereto. The memory in the embodiment of the present application may also be a circuit or any other device that can implement a storage function, for storing program instructions and / or data.

[0134] In the embodiments of the present application, the processor 1320 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of the present application may be directly implemented as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

[0135] As shown in Figure 14, a communication device 1400 provided in an embodiment of the present application is used to implement the communication method provided in the present application. The communication device 1400 can be a communication device that applies the communication method shown in the embodiment of the present application, or it can be a component in a communication device, or it can be a device that can be used in combination with a communication device. The communication device 1400 can be a signal transmitting end or a receiving end. Among them, the communication device 1400 can be a chip system or a chip. In the embodiment of the present application, the chip system can be composed of a chip, or it can include a chip and other discrete devices. Part or all of the communication methods provided in the above embodiments can be implemented by hardware or by software. When implemented by hardware, the communication device 1400 may include: an input interface circuit 1401, a logic circuit 1402, and an output interface circuit 1403.

[0136] Optionally, taking the device being used to implement the function of the receiving end as an example, the input interface circuit 1401 can be used to execute the above-mentioned receiving action performed by the transceiver unit 1220, the output interface circuit 1403 can be used to execute the above-mentioned sending action performed by the transceiver unit 1220, and the logic circuit 1402 can be used to execute the above-mentioned action performed by the processing unit 1210, which will not be repeated.

[0137] Optionally, the communication device 1400 may be a chip or an integrated circuit in specific implementation.

[0138] Part or all of the operations and functions performed by the communication device described in the above method embodiments of the present application can be completed using a chip or an integrated circuit.

[0139] An embodiment of the present application provides a computer-readable storage medium storing a computer program, wherein the computer program includes instructions for executing the above method embodiment.

[0140] An embodiment of the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute the above method embodiment.

[0141] Embodiments of the present application provide a communication system. Specifically, the communication system may include a communication device for implementing the method shown in Figures 5 and / or 10, as well as other communication devices used in conjunction with the communication device. For details, please refer to the relevant descriptions in the above method embodiments, which will not be repeated here. Optionally, the communication system may include the structure shown in Figure 1.

[0142] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0143] The present application is described with reference to the flow chart and / or block diagram of the method, device (system), and computer program product according to the embodiment of the present application. It should be understood that each flow process and / or box in the flow chart and / or block diagram and the combination of the flow process and / or box in the flow chart and / or block diagram can be realized by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processing machine or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for realizing the function specified in one flow chart flow or multiple flows and / or one box or multiple boxes of the block diagram.

[0144] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0145] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

Claims

1. A communication method, characterized in that: include: Obtaining a first excitation coefficient and a second excitation coefficient; Receive or send a signal through a first mode communication unit and a second mode communication unit of the antenna, wherein the antenna includes the first mode communication unit and the second mode communication unit, the first mode uses a first excitation coefficient, and the second mode uses a second excitation coefficient; The first excitation coefficient and the second excitation coefficient are determined based on the following factors: Configured beam scanning angle; an excitation coefficient configured for the first mode; The excitation coefficients configured for the second mode.

2. The method according to claim 1, characterized in that The grating lobe position of the signal is nulled.

3. The method according to claim 1 or 2, characterized in that The first mode is a main mode, and the second mode is a high-order mode.

4. The method according to any one of claims 1 to 3, characterized in that: The method further comprises: acquiring configuration information, where the configuration information includes an excitation coefficient configured for the first mode and an excitation coefficient configured for the second mode; or, The obtaining of the first excitation coefficient and the second excitation coefficient comprises: Acquire configuration information, where the configuration information includes the first excitation coefficient and the second excitation coefficient.

5. The method according to any one of claims 1 to 4, characterized in that: The method further comprises: A first signal is sent according to the configured beam scanning angle through the communication unit of the first mode and the communication unit of the second mode, wherein the communication unit of the first mode adopts the excitation coefficient configured in the first mode, and the communication unit of the second mode adopts the excitation coefficient configured in the second mode, and the first signal is used to determine the transmission channel matrix corresponding to the antenna, and the transmission channel matrix is ​​used to determine the first excitation coefficient and the second excitation coefficient.

6. The method according to any one of claims 1 to 5, characterized in that: The configured beam scanning angle includes a configured azimuth angle and a configured off-axis angle, the first excitation coefficient includes a first amplitude value and a first phase value, and the second excitation coefficient includes a second amplitude value and a second phase value; The azimuth angle of the configuration is 0 degrees, the off-axis angle of the configuration is 45 degrees, the first amplitude value is 0.9 times the second amplitude value, and the phase difference between the first phase value and the second phase value is 76 degrees; or, The azimuth angle of the configuration is 45 degrees, the off-axis angle of the configuration is 45 degrees, the second amplitude value is 0.95 times the first amplitude value, and the phase difference between the first phase value and the second phase value is 49 degrees; or, The azimuth angle of the configuration is 90 degrees, the off-axis angle of the configuration is 45 degrees, the second amplitude value is 0.89 times the first amplitude value, and the phase difference between the first phase value and the second phase value is 83 degrees.

7. The method according to any one of claims 1 to 6, characterized in that: The amplitude of the communication unit of the first mode in the broadside direction is the maximum value, and the amplitude of the communication unit of the second mode in the broadside direction is the minimum value.

8. The method according to any one of claims 1 to 7, characterized in that: The communication unit of the first mode and the communication unit of the second mode are circularly polarized antennas.

9. The method according to any one of claims 1 to 8, characterized in that: The center distance between any two communication units in the antenna is greater than 0.5 times the wavelength, and the wavelength corresponds to the working frequency of the antenna.

10. A communication device, characterized in that: including a processing unit and a transceiver unit; The processing unit is used to obtain a first excitation coefficient and a second excitation coefficient; The transceiver unit is used to receive or send signals through the communication unit of the first mode and the communication unit of the second mode of the antenna; The first mode adopts a first excitation coefficient, the second mode adopts a second excitation coefficient, and the first excitation coefficient and the second excitation coefficient are determined based on the following factors: Configured beam scanning angle; an excitation coefficient configured for the first mode; The excitation coefficients configured for the second mode.

11. The device according to claim 10, characterized in that The grating lobe position of the signal is nulled.

12. The device according to claim 10 or 11, characterized in that The first mode is a main mode, and the second mode is a high-order mode.

13. The device according to any one of claims 10 to 12, characterized in that: The transceiver unit is also used for: receiving configuration information, wherein the configuration information includes an excitation coefficient configured for the first mode and an excitation coefficient configured for the second mode; or, The transceiver unit is specifically used for: The configuration information includes the first excitation coefficient and the second excitation coefficient.

14. The device according to any one of claims 10 to 13, characterized in that: The transceiver unit is also used for: Sending a first signal according to the configured beam scanning angle; Among them, the communication unit of the first mode adopts the excitation coefficient configured in the first mode, and the communication unit of the second mode adopts the excitation coefficient configured in the second mode. The first signal is used to determine the transmission channel matrix corresponding to the antenna, and the transmission channel matrix is ​​used to determine the first excitation coefficient and the second excitation coefficient.

15. The device according to any one of claims 10 to 14, characterized in that: The configured beam scanning angle includes a configured azimuth angle and a configured off-axis angle, the first excitation coefficient includes a first amplitude value and a first phase value, and the second excitation coefficient includes a second amplitude value and a second phase value; The azimuth angle of the configuration is 0 degrees, the off-axis angle of the configuration is 45 degrees, the first amplitude value is 0.9 times the second amplitude value, and the phase difference between the first phase value and the second phase value is 76 degrees; or, The azimuth angle of the configuration is 45 degrees, the off-axis angle of the configuration is 45 degrees, the second amplitude value is 0.95 times the first amplitude value, and the phase difference between the first phase value and the second phase value is 49 degrees; or, The azimuth angle of the configuration is 90 degrees, the off-axis angle of the configuration is 45 degrees, the second amplitude value is 0.89 times the first amplitude value, and the phase difference between the first phase value and the second phase value is 83 degrees.

16. The device according to any one of claims 10 to 15, characterized in that: The amplitude of the communication unit of the first mode in the broadside direction is the maximum value, and the amplitude of the communication unit of the second mode in the broadside direction is the minimum value.

17. The device according to any one of claims 10 to 16, characterized in that: The communication unit of the first mode and the communication unit of the second mode are circularly polarized antennas.

18. The device according to any one of claims 10 to 17, characterized in that: The center distance between any two communication units in the antenna is greater than 0.5 times the wavelength, and the wavelength corresponds to the working frequency of the antenna.

19. A computer-readable storage medium, characterized in that: The method comprises computer program instructions. When the computer program instructions are executed by a computer, the computer performs the method according to any one of claims 1 to 9.

20. A communication device, characterized in that: The system comprises a processor configured to execute a computer program or instruction to implement the method according to any one of claims 1 to 9.

21. The device according to claim 20, characterized in that The device further comprises a memory and / or a transceiver, wherein the memory is used to store the computer program or instructions, and the transceiver is used for the device to communicate.

22. A communication device, characterized in that: The method comprises modules for executing the method as claimed in any one of claims 1 to 9.

23. A computer-readable storage medium, characterized in that: The storage medium stores a computer program or instruction. When the computer program or instruction is executed by the communication device, the method according to any one of claims 1 to 9 is implemented.

24. A computer program product, characterized in that The method comprises a computer program or an instruction, which, when executed by a computer, enables the computer to implement the method according to any one of claims 1 to 9.

25. A chip, characterized in that: The chip is coupled to a memory, and the chip reads a computer program stored in the memory to execute the method according to any one of claims 1 to 9.

26. A communication device, characterized in that: Used to perform the method according to any one of claims 1 to 9.

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