A communication method, apparatus, and system

Abstract

The application provides a communication method, device and system, and relates to the technical field of communication. In the method, polarization information of electromagnetic waves is introduced into a communication system, and whether the communication devices (such as network devices or terminals) support the interaction of the capability information of transmitting and / or receiving polarized signals, and then the communication devices can be based on whether the communication devices support the capability information of transmitting and / or receiving polarized signals, so as to help the communication devices to accurately control the antenna electromagnetic wave polarization transmission, so that the appropriate polarized signals can be used to perceive the target, help to improve the accuracy of perception, and promote the target identification technology of perception to gradually cross from “visible” to “clear” and “clearly distinguishable”.

Description

Technical Field

[0001] This application relates to the field of communications, and more particularly to a communication method, apparatus, and system. Background Technology

[0002] Communication-sensing integration is a key technology in next-generation wireless communication networks, with its core objective being to merge wireless communication and sensing functions into a single system. By utilizing the propagation characteristics of wireless signals, this technology enables precise positioning, detection, imaging, and identification of sensing targets, thereby acquiring information related to those targets. This not only helps to unlock communication capabilities but also significantly enhances the user experience.

[0003] In existing communication sensing methods, network devices can instruct terminals to transmit signals through specific antenna ports. However, in certain high-performance wireless sensing scenarios, such as applications requiring target identification or significantly improved detection coverage, precise control of the polarization of antenna electromagnetic wave transmission becomes crucial. This precise control is essential for achieving high-precision sensing results. However, based on currently known communication sensing methods, it is difficult to obtain the required precise sensing results.

[0004] Therefore, how to achieve precise control over the polarization of antenna electromagnetic wave transmission in an integrated communication and sensing system has become an urgent technical problem to be solved. Summary of the Invention

[0005] This application provides a communication method, apparatus, and system aimed at improving the accuracy of sensing.

[0006] In a first aspect, a communication method is provided, which can be executed by a first communication device. For example, it can be executed by the entire first communication device itself, or by a component (such as a processor, chip, chip system, etc.) configured in the first communication device, or by a logic module or software capable of implementing all or part of the functions of the first communication device. This application does not limit the scope of the method.

[0007] The first communication device may be, for example, a network device, including but not limited to: an evolved node B (eNB) in a long term evolution (LTE) system, a next-generation node B (gNB) in a 5th generation (5G) mobile communication system, a satellite in a non-terrestrial network (NTN), or a base station in a future mobile communication system, etc. This application does not limit the specific type of network device. The first communication device may also be a terminal, including but not limited to: a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) device, or an augmented reality (AR) device, etc. This application does not limit the specific type of terminal.

[0008] For example, the method includes: acquiring first information, the first information being used to indicate whether a second communication device has a first capability and / or a second capability, the first capability being the ability to transmit a signal having a first polarization characteristic, and the second capability being the ability to receive a signal having a second polarization characteristic; and performing sensing based on the first information.

[0009] Based on the above technical solution, by introducing the polarization information (or properties) of electromagnetic waves into the communication system, the first communication device can obtain information on whether the second communication device supports the ability to send and / or receive polarized signals, thereby helping the first communication device to accurately control the polarization transmission of electromagnetic waves by the antenna, and thus helping to improve the accuracy of sensing.

[0010] In conjunction with the first aspect, in some possible implementations, the method further includes: sending second information, the second information being used to indicate whether the first communication device possesses the first capability and / or the second capability.

[0011] By sending a second message to inform other communication devices of their own capabilities regarding polarization signals, interoperability between communication devices can be achieved, enabling both parties to fully utilize their respective capabilities during communication sensing, which helps improve the accuracy of communication sensing.

[0012] In conjunction with the first aspect, in some possible implementations, sensing based on the first information includes: determining a target communication device based on the first information and sensing requirements, the target communication device including the first communication device and / or the second communication device; and sensing based on the target communication device.

[0013] The process of determining a sensing strategy that meets sensing requirements based on the capabilities of the communication device helps to obtain more accurate sensing results.

[0014] In conjunction with the first aspect, in some possible implementations, where the target communication device includes the second communication device, sensing based on the target communication device includes: sending a first request to request the second communication device to send a signal having a third polarization feature, the third polarization feature being a subset of the first polarization feature; receiving a first echo signal generated based on the third polarization feature; and performing sensing analysis based on the features of the first echo signal and the third polarization feature to obtain a sensing result.

[0015] By requesting a second communication device to send a signal with specific polarization characteristics and receiving the echo signal, accurate perception and analysis of the target can be achieved, thereby helping to improve the accuracy and reliability of the perception results.

[0016] In conjunction with the first aspect, in some possible implementations, when the target communication device includes the second communication device, sensing based on the target communication device includes: transmitting a signal having a fourth polarization feature, the fourth polarization feature being a subset of the second polarization feature; receiving feature information of a second echo signal from the second communication device, the second echo signal being generated based on the signal having the fourth polarization feature; and performing sensing analysis based on the fourth polarization feature and the feature information of the second echo signal to obtain a sensing result.

[0017] By sending signals with specific polarization characteristics and receiving echo signal characteristic information from a second communication device, accurate perception and analysis of the target can be achieved, thereby helping to improve the accuracy and reliability of the perception results.

[0018] In conjunction with the first aspect, in some possible implementations, when the target communication device includes the second communication device, sensing based on the target communication device includes: transmitting a signal having a fourth polarization feature, the fourth polarization feature being a subset of the second polarization feature; and receiving a sensing result from the second communication device, the sensing result being obtained based on the fourth polarization feature and a feature of a second echo signal, the second echo signal being generated based on the signal having the fourth polarization feature.

[0019] The first communication device sends a signal with specific polarization characteristics. The second communication device receives the echo signal, performs sensing analysis to obtain the sensing result, and then feeds the sensing result back to the first communication device, which can reduce the power consumption of the first communication device.

[0020] In conjunction with the first aspect, in some possible implementations, when the target communication device includes the first communication device, sensing based on the target communication device includes: transmitting a polarization signal; receiving an echo signal generated based on the polarization signal; and performing sensing analysis based on the characteristics of the polarization signal and the characteristics of the echo signal to obtain a sensing result.

[0021] The target communication device may include the first communication device, which can transmit polarization signals and receive echo signals. In this way, the first communication device can also sense the target even without the second communication device.

[0022] Secondly, a communication method is provided, which can be executed by a second communication device. For example, it can be executed by the second communication device itself, or by a component (such as a processor, chip, chip system, etc.) configured in the second communication device, or by a logic module or software capable of implementing all or part of the functions of the first communication device. This application does not limit this.

[0023] The second communication device may be, for example, a network device, including but not limited to: an eNB in ​​an LTE system, a gNB in ​​a 5G mobile communication system, a satellite in an NTN, or a base station in a future mobile communication system, etc. This application does not limit the specific type of network device. The second communication device may also be a terminal, including but not limited to: a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a VR device, or an AR device, etc. This application does not limit the specific type of terminal.

[0024] For example, the method includes: sending first information, the first information being used to indicate whether the second communication device has a first capability and / or a second capability, the first capability being the ability to transmit a signal having a first polarization characteristic, and the second capability being the ability to receive a signal having a second polarization characteristic.

[0025] Based on the above technical solution, by introducing the polarization information (or properties) of electromagnetic waves into the communication system, the second communication device can send information to the first communication device about whether the second communication device supports transmitting and / or receiving polarized signals. This helps the first communication device to accurately control the polarization transmission of electromagnetic waves by the antenna, thereby improving the accuracy of sensing.

[0026] In conjunction with the second aspect, in some possible implementations, the method further includes: receiving second information from the first communication device, the second information being used to indicate whether the first communication device possesses the first capability and / or the second capability.

[0027] By receiving the second information to obtain the first communication device's capability information regarding the polarization signal, capability interoperability between the communication devices can be achieved, enabling both parties to fully utilize their respective capabilities during sensing, which helps improve the accuracy of sensing.

[0028] In conjunction with the second aspect, in some possible implementations, the method further includes: receiving a first request for requesting the second communication device to send a signal having a third polarization feature, the third polarization feature being a subset of the first polarization feature.

[0029] By sending signals with specific polarization characteristics requested by other communication devices (such as the first communication device), the accuracy and reliability of the sensing results can be improved.

[0030] In conjunction with the second aspect, in some possible implementations, the method further includes: transmitting a signal having a third polarization feature, which is a subset of the first polarization feature.

[0031] The second communication device can send signals with specific polarization characteristics, thereby helping to improve the accuracy and reliability of the sensing results.

[0032] In conjunction with the second aspect, in some possible implementations, the method further includes: receiving a second echo signal generated based on the signal having a fourth polarization feature, the fourth polarization feature being a subset of the second polarization feature.

[0033] The second communication device can receive echo signals of signals with specific polarization characteristics, thereby helping to improve the accuracy and reliability of the sensing results.

[0034] In conjunction with the second aspect, in some possible implementations, the method further includes: sending characteristic information of the second echo signal to the first communication device.

[0035] By sending the characteristic information of the echo signal of a signal with specific polarization characteristics to the first communication device, the first communication device can achieve accurate perception and analysis of the target, thereby improving the accuracy and reliability of the perception results.

[0036] In conjunction with the second aspect, in some possible implementations, the method further includes: performing a perception analysis based on the characteristic information of the fourth polarization feature and the second echo signal to obtain a perception result; and sending the perception result to the first communication device.

[0037] The second communication device can receive echo signals of signals with specific polarization characteristics, perform sensing analysis to obtain sensing results, and then feed the sensing results back to the first communication device, which can reduce the power consumption of the first communication device.

[0038] In conjunction with the first and second aspects, in some possible implementations, the signal having the first polarization characteristic includes one or more of the following: a first linearly polarized signal, a first circularly polarized signal, or a first ellipticly polarized signal; and / or, the signal having the second polarization characteristic includes one or more of the following: a second linearly polarized signal, a second circularly polarized signal, or a second ellipticly polarized signal.

[0039] By defining different types of polarization signals (such as linear polarization, circular polarization, and elliptic polarization), we can flexibly adapt to different sensing needs and environmental conditions, which helps to accurately control the polarization of antenna electromagnetic wave transmission, improve the accuracy of sensing, and also help to improve the adaptability and reliability of sensing.

[0040] In conjunction with the first and second aspects, in some possible implementations, the first linearly polarized signal is a linearly polarized signal having a first angle and / or a first initial phase; or, the first circularly polarized signal is a circularly polarized signal having a second initial phase; or, the first elliptically polarized signal is an elliptically polarized signal having a third initial phase.

[0041] By further refining the characteristics that can transmit polarized signals (such as the polarization angle and / or initial phase of linearly polarized signals, the initial phase of circularly polarized signals and elliptically polarized signals, etc.), precise control of signal polarization characteristics can be achieved, thereby further improving the efficiency and accuracy of signal transmission.

[0042] In conjunction with the first and second aspects, in some possible implementations, the second linearly polarized signal is a linearly polarized signal having a second angle and / or a fourth initial phase; or, the second circularly polarized signal is a circularly polarized signal having a fifth initial phase; or, the second elliptically polarized signal is an elliptically polarized signal having a sixth initial phase.

[0043] By further refining the characteristics of the polarization signals that can be received (such as the polarization angle and / or initial phase of linearly polarized signals, the initial phase of circularly polarized signals and elliptically polarized signals), precise control of the signal polarization characteristics can be achieved, thereby further improving the efficiency and accuracy of signal transmission.

[0044] Thirdly, this application provides a communication device that enables the method described in the first aspect and any possible implementation thereof to be implemented, or enables the method described in the second aspect and any possible implementation thereof to be implemented. The device includes corresponding modules for performing the above-described methods. The modules included in the device can be implemented in software and / or hardware.

[0045] Fourthly, this application provides a communication device including a processor. The processor can be used to execute a computer program stored in a memory, causing the methods described in the first aspect and any possible implementation thereof to be implemented, or causing the methods described in the second aspect and any possible implementation thereof to be implemented.

[0046] Optionally, the device further includes a communication interface, to which the processor is coupled. The communication interface is used to receive signals from other communication devices besides the aforementioned device and transmit them to the processor, or to send signals from the processor to other communication devices besides the aforementioned device. Exemplarily, the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface.

[0047] Optionally, the device also includes a memory, to which the processor is coupled. The memory is used to store program instructions and data.

[0048] Fifthly, this application provides a computer-readable storage medium storing a computer program or instructions that, when executed by a computer, cause the methods in the first aspect and any possible implementation thereof to be executed, or cause the methods in the second aspect and any possible implementation thereof to be executed.

[0049] Sixthly, this application provides a computer program product comprising: a computer program (also referred to as code or instructions) that, when executed, causes the method in the first aspect and any possible implementation thereof to be executed, or causes the method in the second aspect and any possible implementation thereof to be executed.

[0050] Seventhly, this application provides a chip system including at least one processor for supporting the functions involved in implementing the first aspect and any possible implementation thereof, or for supporting the functions involved in implementing the second aspect and any possible implementation thereof. For example, receiving or processing data involved in the above methods.

[0051] In one possible design, the chip system described above also includes a memory for storing program instructions and data, which may be located inside or outside the processor.

[0052] The chip system can consist of chips or include chips and other discrete components.

[0053] Eighthly, this application provides a communication system comprising a first communication device and a second communication device, wherein the first communication device is used to implement the method in the first aspect and any possible implementation of the first aspect, or the second communication device is used to implement the method in the second aspect and any possible implementation of the second aspect.

[0054] It should be understood that the third to eighth aspects of this application correspond to the technical solutions of the first and second aspects of this application, and the beneficial effects achieved by each aspect and the corresponding feasible implementation are similar, and will not be repeated here. Attached Figure Description

[0055] Figure 1 This is a schematic diagram of the architecture of a communication system applicable to the methods provided in this application;

[0056] Figure 2 This is a schematic diagram of a scenario applicable to the method provided in this application;

[0057] Figures 3 to 8 This is a schematic diagram of various perception modes applicable to the methods provided in this application;

[0058] Figure 9 This is a schematic diagram illustrating the connection relationship between the terminal and the network device applicable to the method provided in this application;

[0059] Figure 10 This is a schematic flowchart of the communication method provided in the embodiments of this application;

[0060] Figure 11 This is a schematic diagram of linear polarization;

[0061] Figure 12 This is a schematic diagram of circular polarization;

[0062] Figure 13 This is a schematic diagram illustrating the transmission of a specific polarization signal on a specific time-domain resource as indicated by the first request.

[0063] Figure 14 This is a schematic block diagram of the communication device provided in the embodiments of this application;

[0064] Figure 15 This is another schematic block diagram of the communication device provided in the embodiments of this application. Detailed Implementation

[0065] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0066] To facilitate understanding of the method provided in this application, the following points will be explained first.

[0067] First, in this application, the term "system" can be used interchangeably with "network." This application will present various aspects, embodiments, or features in relation to a system that may include multiple devices, components, modules, etc. It should be understood and appreciated that individual systems may include additional devices, components, modules, etc., and / or may not include all devices, components, modules, etc. discussed in conjunction with the accompanying drawings. Furthermore, combinations of these approaches are also possible.

[0068] Second, in this application, the words "exemplarily," "for example," etc., are used to indicate that they are examples, illustrations, or descriptions. Any embodiment or design that is described as an "example" in this application should not be construed as being more preferred or advantageous than other embodiments or design options. Specifically, the use of the word "example" is intended to present the concept in a concrete manner.

[0069] Third, in this application, "instruction" can include direct and indirect instructions, as well as explicit and implicit instructions. The information indicated by a certain piece of information is called the information to be instructed. In the specific implementation process, there are many ways to instruct the information to be instructed, such as, but not limited to, directly instructing the information to be instructed, such as the information to be instructed itself or its index. It can also indirectly instruct the information to be instructed by instructing other information, where there is a relationship between the other information and the information to be instructed. It can also instruct only a part of the information to be instructed, while the other parts are known or pre-agreed upon. For example, the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol-defined) arrangement of various pieces of information, thereby reducing instruction overhead to some extent. At the same time, common parts of various pieces of information can be identified and uniformly indicated to reduce the instruction overhead caused by individually indicating the same information.

[0070] Furthermore, the specific indication method can also be any existing indication method, such as, but not limited to, the above-mentioned indication methods and their various combinations. Specific details of various indication methods can be found in existing technologies, and will not be repeated here. As can be seen from the above, for example, when multiple pieces of information of the same type need to be indicated, the indication methods for different pieces of information may differ. In the specific implementation process, the required indication method can be selected according to specific needs. This application embodiment does not limit the selected indication method; therefore, the indication methods involved in this application embodiment should be understood to cover various methods that enable the party to be indicated to obtain the information to be indicated.

[0071] Fourth, in this application, "predefined" can be understood as standard-defined, which can be implemented by pre-saving corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices). This application does not limit the specific implementation method. "Saving" can refer to saving in one or more memories. One or more memories can be separate settings or integrated into the encoder or decoder, processor, or communication device. One or more memories can also be partially separate settings and partially integrated into the decoder, processor, or communication device. The type of memory can be any form of storage medium, and this application does not limit this. "Configuration" refers to network device configuration, which can be changed through system information block (SIB) or radio resource control (RRC) signaling.

[0072] In addition, the term "predefined" in this application can be replaced with "definition", "predefined", "storage", "pre-storage", "pre-negotiation", "pre-firing", "curing", "pre-configuration" or "pre-configuration", etc.

[0073] Fifth, the “protocol” involved in the embodiments of this application may refer to standard protocols in the field of communication, such as LTE protocol, NR protocol and related protocols applied to future communication systems. The embodiments of this application do not limit this.

[0074] Sixth, in this application, descriptions such as "when," "in the circumstances," "if," and "if" all refer to the fact that the device (e.g., a network device or terminal) will take corresponding actions under certain objective circumstances. They are not time-limited, nor do they require the device (e.g., a network device or terminal) to perform a judgment action during implementation, nor do they imply any other limitations. Unless otherwise specified, "if" and "if" are interchangeable, as are "when" and "in the circumstances." "When" is interchangeable with "if" / "if."

[0075] Seventh, in this application, unless otherwise stated, " / " indicates that the objects before and after are in an "or" relationship. For example, A / B can represent A or B. The "and / or" in the embodiments of this application is merely a description of the relationship between the related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone, where A and B can be singular or plural. Furthermore, in the description of the embodiments of this application, unless otherwise stated, "multiple" refers to two or more. "At least one of the following" or similar expressions refer 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, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0076] Eighth, in this application, communication between different devices can refer to direct communication between different devices (i.e., without the need for relaying or forwarding by other devices), or communication between different devices through other devices (i.e., requiring relaying or forwarding by other devices), or communication between a functional unit within a device and other devices through another functional unit. "Sending" and "receiving" indicate the direction of signal transmission. For example, "sending information to a terminal" can be understood as the destination of the information being the terminal, which can include direct sending via the air interface, or indirect sending via the air interface by other units or modules. "Receiving configuration information from a network device" can be understood as the source of the configuration information being the network device, which can include direct reception from the network device via the air interface, or indirect reception from the network device via the air interface by other units or modules. "Sending" can also be understood as the "output" of the chip interface, and "receiving" can also be understood as the "input" of the chip interface.

[0077] In other words, sending and receiving can occur between devices, such as between network devices and terminals; or they can occur within a device, such as between components, modules, chips, software modules, or hardware modules within a device via a bus, wiring, or interface.

[0078] It is understandable that information may undergo necessary processing, such as encoding and modulation, before being sent from the source to the destination. Similarly, the destination, upon receiving information from the source, can also perform corresponding processing, such as decoding and demodulation, to interpret the valid information from the source. Similar expressions in this application can be understood in a similar way and will not be elaborated further.

[0079] Ninth, in this application, the number of nouns, unless otherwise specified, refers to "singular nouns or plural nouns," that is, "one or more." "At least one" means one or more, and "more than one" means two or more.

[0080] Tenth, the ordinal numbers such as "first" and "second" mentioned in this application are used to distinguish multiple objects, and are not used to limit the size, content, order, timing, priority, or importance of multiple objects. For example, "first information" and "second information" refer to two different pieces of information, and do not indicate a difference in the priority or importance of these two conditions.

[0081] Eleventh, in the embodiments of this application, the solutions in each embodiment can be used in a reasonable combination, and the explanations or descriptions of various terms, similar operations, or steps appearing in the embodiments can be referenced or explained to each other in the various embodiments, without limitation.

[0082] Twelfth, the technical solutions provided in this application can be applied to various communication systems, such as LTE communication systems, 5G mobile communication systems / NR communication systems, satellite communication systems, or future mobile communication systems, or other similar communication systems. Other similar communication systems may include wireless fidelity (Wi-Fi), vehicle-to-everything (V2X), internet of things (IoT) systems, Bluetooth systems, long-range radio (LoRa) systems, and so on.

[0083] To facilitate understanding of the communication method provided in this application, the technical terms involved in this application will be explained in detail below.

[0084] 1. Perception: Perception, also known as detection, refers to detecting parameters of a target (also called a target object, a sensing target, or a target) in the physical environment, such as the target's position and velocity. For example, a target can be detected by emitting electromagnetic waves and analyzing the echo signal reflected from the target.

[0085] 2. Sensing signal: also known as detection signal, environmental sensing signal, etc., which is the signal used to sense (or detect) the target.

[0086] The sensing signal can be a pulse signal or a signal from a wireless communication system. For example, the sensing signal can be an orthogonal frequency division multiplexing (OFDM) signal obtained by modulating a specific sequence on a subcarrier. This specific sequence can be any of the following sequences: Zadoff-Chu (ZC) sequence, pseudo-random sequence, predefined sequence, etc. The pseudo-random sequence includes any of the following sequences: longest linear feedback shift register sequence (m-sequence), Gold sequence, etc. The predefined sequence can be, for example, random data symbols, such as random data symbols modulated by quadrature phase shift keying (QPSK), quadrature amplitude modulation (QAM), etc.

[0087] 3. Communication signals: These are signals transmitted between communication devices for communication purposes, such as signals transmitted between network devices and terminals. Communication signals may include signals carried on the physical downlink shared channel (PDSCH) or the physical uplink shared channel (PUSCH).

[0088] 4. Echo Signal: The echo signal is the signal generated when the sensed signal is reflected by the target. The time delay of the echo signal relative to the sensed signal reflects the distance of the target relative to the transmitter. The Doppler shift of the echo signal relative to the sensed signal reflects the velocity of the target.

[0089] 5. Communication-sensing fusion signal: also known as syn-sensing fusion signal or syn-sensing signal, or syn-sensing integrated signal, etc., is a signal used for both communication and sensing. When used for communication, it can be understood that the signal carries the communication data or communication reference signal sequence that needs to be transmitted between communication devices.

[0090] 6. Target: can be any tangible object in the environment that can reflect electromagnetic waves, such as mountains, forests, or buildings, and can also include mobile objects such as vehicles, drones, pedestrians, and terminal devices. The target can also be referred to as the perceived target, the detected target, the perceived object, the detected object, the perceived device, the sensing target, or the target object, etc., and the embodiments of this application do not limit it.

[0091] 7. Antenna Polarization: Antenna polarization is determined by the polarization of electromagnetic waves. Antenna polarization refers to the oscillation direction and change pattern of the electric field vector when an antenna radiates electromagnetic waves. The direction of the electric field of a polarized electromagnetic wave is called the polarization direction. The plane formed by the polarization direction and the propagation direction of a polarized electromagnetic wave is called the polarization plane or polarization surface.

[0092] In this application, polarization can refer to the polarization of a plane electromagnetic wave. The polarization of a plane electromagnetic wave can include linear polarization, circular polarization, and elliptical polarization.

[0093] For a plane electromagnetic wave propagating along the z-direction, the electric field It can be decomposed into two components, Ex and Ey, and the electric field satisfy: in, and The unit vector representing the two orthogonal components of the electric field. The instantaneous quantity can satisfy: (For ease of description, this formula will be referred to as Formula 1), where, Represents electric field The instantaneous quantity, E x0 express Maximum amplitude in the direction, E y0 express The maximum amplitude in the direction, where ω represents the angular frequency. express Lagging behind in direction The phase difference in the direction, where t represents time.

[0094] Based on the above formula one, where the electric field The two components are: E x (z,t)=E x0 cos(ωt-kz) (the component in the x-direction; for ease of description, this formula is referred to as Formula 2). (The component in the y-direction, for ease of description, is referred to as Formula 3). Eliminating (ωt-kz) from Formulas 2 and 3, we obtain the following relationship between the two components: (For ease of description, this formula will be referred to as Formula 4), which is the electric field. The trajectory equation propagating in the z-direction, for different E x0 E y0 and The value of electric field There are different polarization modes.

[0095] 8. Linear polarization (LP): This is a type of polarization for electromagnetic waves. An electric field vector reciprocates along a single line, which is called a linearly polarized electromagnetic wave. In other words, in linear polarization, the electric field vector remains within a plane during propagation and oscillates along a fixed direction.

[0096] Electric field vectors parallel to the horizontal plane are called horizontal polarization, while those perpendicular to the horizontal plane are called vertical polarization. The plane formed by the electric field vector and the direction of propagation is called the polarization plane. The polarization plane of a vertically polarized wave is perpendicular to the horizontal plane; the polarization plane of a horizontally polarized wave is perpendicular to the plane of incidence, which is formed by the incident ray, the reflected ray, and the normal to the point of incidence.

[0097] In formula four above, when or At that time, the electric field The trajectory of a linearly polarized electromagnetic wave is the trajectory of that wave. For example, the trajectory of a linearly polarized electromagnetic wave can satisfy the following: (For ease of description, this formula will be referred to as Formula 5).

[0098] 9. Circular polarization (CP): This is a polarization method for electromagnetic waves. The magnitude of the electric field vector remains constant, and its endpoint moves in a circle; this is called a circularly polarized electromagnetic wave. That is, in circular polarization, the endpoint of the electric field vector rotates at a constant angular velocity in the direction of propagation, thus forming a circular trajectory in a plane perpendicular to the direction of propagation.

[0099] Circular polarization can include left-hand circular polarization (LHCP) and right-hand circular polarization (RHCP). The electric field vectors rotate in different directions in left-hand and right-hand circular polarization. For example, when the observer is facing the direction of the receiving wave, if the electric field vector rotates clockwise, it is right-hand circular polarization; if the electric field vector rotates counterclockwise, it is left-hand circular polarization.

[0100] In formula four above, when And, E x0 =E y0 At that time, the electric field The trajectory of a circularly polarized electromagnetic wave is the same as that of a circularly polarized electromagnetic wave. For example, the trajectory of a circularly polarized electromagnetic wave can satisfy the following: (For ease of description, this formula will be referred to as Formula Six), where,

[0101] 10. Elliptical polarization (EP): This is a polarization method for electromagnetic waves. The magnitude of the electric field vector changes with time, and the trajectory of its endpoint is an ellipse, hence the name elliptical polarized electromagnetic wave. That is, in elliptical polarization, the endpoint of the electric field vector traces an elliptical trajectory on a plane perpendicular to the wave's propagation direction. Elliptical polarization is a generalized form of linear and circular polarization; linear and circular polarization can be considered special cases of elliptical polarization.

[0102] In elliptic polarization, the magnitude and direction of the electric field vector change with time, causing it to form an ellipse in a plane perpendicular to the direction of propagation. The shape and orientation of the ellipse are influenced by two parameters: the axial ratio (the ratio of the axial lengths) and the direction of rotation (clockwise or counterclockwise).

[0103] Elliptical polarization can include left-hand elliptical polarization (LHEP) and right-hand elliptical polarization (RHEP). The electric field vectors in left-hand and right-hand elliptical polarization rotate in different directions. For example, when the observer is facing the direction of the receiving wave, if the electric field vector rotates clockwise, it is right-hand elliptical polarization; if the electric field vector rotates counterclockwise, it is left-hand elliptical polarization.

[0104] In Formula 4 above, when φ is any value, the electric field The trajectory equation is an ellipse equation, as detailed in Formula 4, and will not be elaborated here. Communication-sensing integration is a key technology in next-generation wireless communication networks, with its core objective being to integrate wireless communication and sensing functions into a single system. By utilizing the propagation characteristics of wireless signals, this technology enables precise positioning, detection, imaging, and identification of sensing targets, thereby acquiring information related to the sensing targets. This not only helps to unlock communication capabilities but also significantly enhances the user experience.

[0105] For example, a first communication device sends a sensing signal, and a second communication device (or the first communication device) receives the echo signal reflected by a target in the environment to perform sensing. The time delay of the echo signal relative to the transmitted sensing signal can reflect the distance of the target relative to the first communication device, and the Doppler shift of the echo signal relative to the sensing signal can reflect the target's moving speed.

[0106] In existing communication sensing methods, network devices can instruct terminals to transmit signals through specific antenna ports. However, in certain high-performance wireless sensing scenarios, such as applications requiring target identification or significantly improved detection coverage, precise control of the polarization of antenna electromagnetic wave transmission becomes crucial. This precise control is essential for achieving high-precision sensing results. However, based on currently known communication sensing methods, it is difficult to obtain the required precise sensing results.

[0107] Therefore, how to achieve precise control over the polarization of antenna electromagnetic wave transmission in an integrated communication and sensing system has become an urgent technical problem to be solved.

[0108] In current radar sensing (or detection) methods, when a target is irradiated by electromagnetic waves, the polarization state of the scattered wave (i.e., the echo) changes relative to the incident wave (i.e., the sensing wave). The specific mapping transformation relationship between the two is closely related to the target's attitude, size, structure, material, and other physical properties. Therefore, based on the change in polarization information of the echo relative to the sensing wave, the rich physical information contained in the target can be extracted, thereby improving the anti-interference, target detection, classification, and recognition performance of the sensing system.

[0109] To address the aforementioned technical issues, and considering that communication signals or sensing signals are also electromagnetic wave signals, the known radar sensing methods can be referenced to introduce the polarization information (or attributes) of electromagnetic waves into the communication system. Communication devices (such as network devices or terminals) can exchange information on their ability to transmit and / or receive polarized signals, thereby facilitating precise control of antenna electromagnetic wave polarization transmission by the communication devices. This, in turn, helps improve the accuracy of sensing and promotes the target recognition technology from "seeing" to "seeing clearly" and "distinguishing clearly."

[0110] Before describing the communication method provided in this application in detail, the communication system, scenario, and perception mode to which the method provided in this application is applicable will be described in detail below with reference to the accompanying drawings.

[0111] Figure 1 This is a schematic diagram of the architecture of a communication system applicable to the method provided in this application. Figure 1 A schematic diagram of a possible, non-limiting system architecture is shown.

[0112] like Figure 1 As shown, the communication system 100 includes a radio access network (RAN) 10 and a core network (CN) 20. Optionally, the communication system 100 also includes an Internet 30. RAN 10 includes at least one RAN node (e.g., Figure 1110a and 110b (collectively referred to as 110) and at least one terminal (such as Figure 1 RAN 10, denoted as RAN 10 (120a-120j), may also include other RAN nodes, such as wireless relay devices and / or wireless backhaul devices. Figure 1 (Not shown in the image). Terminal 120 is connected to RAN node 110 wirelessly. RAN node 110 is connected to core network 20 wirelessly or via wired connection. The core network equipment in core network 20 and RAN node 110 in RAN 10 can be different physical devices, or they can be the same physical device integrating core network logical functions and radio access network logical functions.

[0113] RAN 10 can be a cellular system related to the 3rd Generation Partnership Project (3GPP), such as 4G, 5G mobile communication systems, or future-oriented evolution systems. RAN 10 can also be an open access network (O-RAN or ORAN), a cloud radio access network (CRAN), or a wireless fidelity (Wi-Fi) system. RAN 10 can also be a communication system that integrates two or more of the above systems.

[0114] RAN node 110, sometimes also referred to as access network equipment, RAN entity, or access node, is part of the communication system and is used to help terminals achieve wireless access. Multiple RAN nodes 110 in communication system 100 can be of the same type or different types. In some scenarios, the roles of RAN node 110 and terminal 120 are relative, for example... Figure 1 Network element 120i can be a helicopter or a drone, and it can be configured as a mobile base station. For terminals 120j that access RAN 10 through network element 120i, network element 120i is a base station; however, for base station 110a, network element 120i is a terminal. RAN node 110 and terminal 120 are sometimes referred to as communication devices, for example... Figure 1 Network elements 110a and 110b can be understood as communication devices with base station functions, while network elements 120a-120j can be understood as communication devices with terminal functions.

[0115] In one possible scenario, a RAN node can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next-generation NodeB (gNB), a next-generation base station in a next-generation mobile communication system, a base station in a future mobile communication system, or an access node in a Wi-Fi system, etc. A RAN node can also be a macro base station (such as...) Figure 1 110a), micro base stations or indoor stations (such as Figure 1 In CRAN scenarios, RAN nodes can be 110b), relay nodes or donor nodes, or wireless controllers. Optionally, RAN nodes can also be servers, wearable devices, vehicles, or in-vehicle equipment. For example, in vehicle-to-everything (V2X) technology, the access network equipment can be a roadside unit (RSU).

[0116] In another possible scenario, multiple RAN nodes collaborate to assist the terminal in achieving wireless access, with different RAN nodes each implementing a portion of the base station's functions. For example, RAN nodes can be central units (CUs), distributed units (DUs), CU-control plane (CPs), CU-user plane (UPs), or radio units (RUs), etc. CUs and DUs can be set up separately or included in the same network element, such as a baseband unit (BBU). RUs can be included in radio frequency equipment or radio frequency units, such as remote radio units (RRUs), active antenna units (AAUs), or remote radio heads (RRHs).

[0117] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules.

[0118] A terminal can also be called 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 grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, etc. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc.

[0119] In this application embodiment, the terminal and network device can be hardware devices, or software functions running on dedicated hardware, or software functions running on general-purpose hardware, such as virtualization functions instantiated on a platform (e.g., cloud platform), or entities that include dedicated or general-purpose hardware devices and software functions. This application does not limit the specific form of the terminal and network device.

[0120] Figure 2 This is a schematic diagram of a scenario applicable to the method provided in this application.

[0121] like Figure 2 As shown, the communication method provided in this application can be applied to integrated communication and sensing scenarios. While communicating with each other, network devices and terminals in the communication network can also sense objects that lack communication capabilities. For example, while communicating with terminal 1, the network device can also sense object 1; similarly, while communicating with the network device, terminal 2 can also sense object 2; furthermore, the network device can also sense people.

[0122] Depending on the sender and receiver of the sensing signal, sensing modes can be categorized into two types: single-station sensing and dual-station sensing. Single-station sensing refers to the same device sending the sensing signal and the same device receiving the echo signal reflected from the sensing target. Dual-station sensing refers to different devices sending the sensing signal and receiving the echo signal reflected from the sensing target.

[0123] Figures 3 to 8 This is a schematic diagram of various perception modes applicable to the methods provided in this application.

[0124] Figure 3 This illustrates a sensing mode where the network device transmits sensing signals and receives echo signals reflected from the sensing target. This is a typical single-site sensing mode. For ease of description, this sensing mode will be simply referred to as the network device self-transmitting and self-receiving sensing mode.

[0125] Figure 4 This illustrates a sensing mode in which the terminal transmits sensing signals and receives echo signals reflected from the sensing target. This sensing mode is a typical single-site sensing mode. For ease of description, this sensing mode will be simply referred to as the terminal self-transmitting and self-receiving sensing mode.

[0126] Figure 5 The diagram illustrates a sensing mode where network device A transmits a sensing signal and network device B receives the echo signal reflected from the sensing target. This is a typical bi-station sensing mode. For ease of description, this sensing mode will be simply referred to as the network device A transmits and network device B receives sensing mode.

[0127] Figure 6 The diagram illustrates a sensing mode where terminal C transmits a sensing signal and terminal D receives the echo signal reflected from the sensing target. This sensing mode is a typical bi-station sensing mode. For ease of description, this sensing mode will be simply referred to as the terminal C transmits and terminal D receives sensing mode.

[0128] Figure 7 This illustrates a sensing mode where the network device transmits sensing signals and the terminal receives the echo signals reflected from the sensing target. This sensing mode is a typical bi-station sensing mode. For ease of description, this sensing mode will be simply referred to as the network device transmits and the terminal receives sensing mode.

[0129] Figure 8 This illustrates a sensing mode where the terminal transmits a sensing signal and the network device receives the echo signal reflected from the sensing target. This sensing mode is a typical bi-station sensing mode. For ease of description, this sensing mode will be simply referred to as the terminal transmits and the network device receives sensing mode.

[0130] The communication method provided in this application will now be described in detail with reference to the accompanying drawings.

[0131] The method is described below using the interaction between the first communication device and the second communication device as an example, and should not be construed as limiting this application in any way.

[0132] The first communication device may be a network device or a terminal, and the second communication device may also be a network device or a terminal; this application does not limit the scope of the application.

[0133] When the first communication device is a terminal, the first communication device can be the terminal itself, a communication module within the terminal, or a component within the terminal responsible for communication functions (such as circuits, chips (e.g., modem chips, also known as baseband chips, or system-on-chip (SoC) chips containing modem cores or system-in-package (SIP) chips), chip systems, or processors, etc.). This application does not limit this. A detailed description of the terminal can be found above. Figure 1 For the sake of brevity, the relevant descriptions in the text will not be repeated here. When the first communication device is a network device, the first communication device can be the network device itself, a communication module within the network device, or a component within the network device responsible for communication functions (e.g., circuits, chips (such as modem chips, also known as baseband chips, or SoC chips or SIP chips containing modem cores, chip systems, or processors, etc.), which this application does not limit. For a detailed description of network devices, please refer to the above text. Figure 1 For the sake of brevity, the relevant descriptions in the document will not be repeated here.

[0134] Not generally speaking, when the second communication device is a terminal, the second communication device can be the terminal itself, a communication module within the terminal, or a component within the terminal responsible for communication functions (such as circuits, chips (e.g., modem chips, also known as baseband chips, or SoC chips or SIPs containing modem cores), chip systems, or processors, etc.). This application does not limit this. For a detailed description of the terminal, please refer to the above. Figure 1 For the sake of brevity, the relevant descriptions in the text will not be repeated here. When the second communication device is a network device, the second communication device can be the network device itself, a communication module within the network device, or a component within the network device responsible for communication functions (such as circuits, chips (e.g., modem chips, also known as baseband chips, or SoC chips or SIP chips containing modem cores, chip systems, or processors, etc.), which this application does not limit. For a detailed description of network devices, please refer to the above text. Figure 1 For the sake of brevity, the relevant descriptions in the document will not be repeated here.

[0135] As an example and not a limitation, in the case where one of the first and second communication devices is a network device and the other is a terminal, such as Figure 9 As shown, the terminal and the network device can be connected via an air interface, or in other words, the terminal and the network device can communicate via an air interface. This application does not limit this.

[0136] The communication method provided in this application is described below.

[0137] Figure 10 This is a schematic flowchart of the communication method provided in the embodiments of this application. The various steps in method 1000 are described in detail below.

[0138] In step 1010, the first communication device acquires first information, which indicates whether the second communication device possesses a first capability and / or a second capability. The first capability is the ability to transmit signals with a first polarization characteristic, and the second capability is the ability to receive signals with a second polarization characteristic. Accordingly, the second communication device transmits the first information.

[0139] It is understood that the second communication device is a device other than the first communication device. In actual application scenarios, there may be one or more second communication devices.

[0140] For example, the first communication device can directly obtain the first information from the second communication device, for example, the second communication device sends the first information to the first communication device; or, the first communication device can also indirectly obtain the first information, for example, the second communication device sends the first information, the third communication device receives the first information, and the third communication device sends the first information to the first communication device.

[0141] It is understandable that, taking communication device 1, communication device 2, and communication device 3 as examples, if communication device 1 is the first communication device, then communication device 2 and communication device 3 can both be the second communication device. For example, if communication device 2 is the second communication device, then communication device 3 can be the third communication device. Similarly, without loss of generality, if communication device 3 is the second communication device, then communication device 2 can be the third communication device.

[0142] It is also understood that the first, second, and third communication devices can be communication devices located in the same cell or in different cells. For example, the first communication device can be a network device, and the second and third communication devices can be terminals within the signal coverage area of ​​the network device; or, for another example, the first and third communication devices can be network devices, and the second communication device can be a terminal within the signal coverage area of ​​the third communication device; or, for yet another example, the second and third communication devices can be network devices, and the first communication device can be a terminal within the signal coverage area of ​​the third communication device; or, for yet another example, the first, second, and third communication devices can all be network devices; or, for yet another example, the first, second, and third communication devices can all be terminals within the same cell.

[0143] As an example, the first information can be used to indicate whether the second communication device has a first capability, namely the ability to transmit a specific polarization signal (for ease of description, the specific polarization signal is referred to as a signal with a first polarization characteristic).

[0144] In another example, the first information can be used to indicate whether the second communication device has a second capability, namely the ability to receive a specific polarization signal (for ease of description, the specific polarization signal is referred to as a signal with a second polarization characteristic).

[0145] In another example, the first information can be used to indicate whether the second communication device has a first capability and whether the second communication device has a second capability.

[0146] It is understood that the first communication device can determine whether the second communication device has the capability to send and receive signals of a specific polarization through a single communication message, or through multiple communication messages; this application does not limit this. Correspondingly, the second communication device can inform other communication devices besides itself whether it has the capability to send and receive signals of a specific polarization through a single communication message, or through multiple communication messages; this application does not limit this.

[0147] In step 1020, the first communication device performs sensing based on the first information.

[0148] For example, after acquiring the first information of the second communication device (i.e., the ability information to receive and / or transmit polarized signals), the first communication device may store the first information of the one or more second communication devices and may perform sensing based on the first information.

[0149] In one possible implementation, sensing based on the first information includes: determining a target communication device based on the first information and sensing requirements, the target communication device including the first communication device and / or the second communication device; and sensing based on the target communication device.

[0150] As an example rather than a limitation, perception requirements may include one or more of the following: enhancing the ability to identify and classify perceived targets, and enhancing detection capabilities.

[0151] The following examples illustrate how to enhance the ability to identify and classify perceived targets and how to enhance detection capabilities.

[0152] Enhancing the ability to identify and classify perceived targets: Since objects of different shapes or materials have different reflection characteristics of polarized waves, for example, metal surfaces reflect horizontally polarized waves strongly, while natural objects (such as vegetation) reflect circularly polarized waves weakly. Therefore, given the material or shape of the perceived target, the accuracy and precision of target identification can be improved by analyzing the polarization characteristics of the echo signal (i.e., the characteristics of the echo signal). For example, it can be made clear which category the perceived target belongs to, such as vehicles, airplanes, or buildings.

[0153] For example, drones are mainly made of metal, plastic and composite materials, which have strong specular reflection characteristics, strong polarization retention and usually stable reflection. Birds, on the other hand, are made of feathers, tissues and skeletons. The interaction between electromagnetic waves and non-uniform media such as feathers is more complex, and polarization scattering will produce more depolarization. Therefore, the polarization characteristics of echo signals can be used to identify and distinguish low-altitude drones and birds.

[0154] Enhancing Detection Capabilities: For example, clutter such as rain, snow, and ocean waves often have specific polarization responses (e.g., circular polarization weakens raindrop reflection). By selecting an appropriate polarization mode, clutter can be effectively filtered, thus enhancing detection capabilities by suppressing environmental clutter. Another example is that some man-made interference signals may employ a single polarization mode. During target detection, the interference effect can be reduced by dynamically switching the polarization mode. Furthermore, by adjusting the polarization modes of transmission and reception, the intensity of the echo signal can be maximized (e.g., linear polarization can be used for elongated targets), thereby improving the detection capability for weakly detected targets (e.g., drones, stealth targets). Finally, by simultaneously using multiple polarization modes (e.g., horizontal polarization, vertical polarization, left-hand circular polarization, right-hand circular polarization, left-hand elliptical polarization, and right-hand elliptical polarization), multiple sets of data can be combined to improve the accuracy and precision of sensing, thus enhancing detection capabilities.

[0155] The process of determining a sensing strategy that meets sensing requirements based on the capabilities of the communication device helps to obtain more accurate sensing results.

[0156] In other words, the first communication device can determine the perception strategy for the target based on the perception requirements, the first information, and the information on the ability of the first communication device to transmit and / or receive signals with a specific polarization (for ease of description, this information is referred to as the second information). The perception strategy may include which communication devices (i.e., the target communication devices) are used to perceive the target, and which polarization electromagnetic waves are used for perception.

[0157] In one possible implementation, the signal having a first polarization characteristic includes one or more of the following: a first linearly polarized signal, a first circularly polarized signal, or a first ellipticly polarized signal; and / or, the signal having a second polarization characteristic includes one or more of the following: a second linearly polarized signal, a second circularly polarized signal, or a second ellipticly polarized signal.

[0158] For example, the polarization of electromagnetic waves can include linear polarization, circular polarization, and elliptic polarization.

[0159] It is understood that the first linear polarization signal can be the same as the second linear polarization signal, or it can be different from the second linear polarization signal; the first circular polarization signal can be the same as the second circular polarization signal, or it can be different from the second circular polarization signal; the first elliptic polarization signal can be the same as the second elliptic polarization signal, or it can be different from the second elliptic polarization signal. This application does not impose any limitations in this regard.

[0160] The following combination Figure 11 and Figure 12The concepts of linear polarization, circular polarization, and elliptic polarization are explained.

[0161] Figure 11 This is a schematic diagram of linear polarization.

[0162] As mentioned in the technical terminology section above, linear polarization is a type of polarization for electromagnetic waves. For example... Figure 1 As shown, in online polarization, the direction of the electric field vector is fixed, and the electric field vector remains in a plane (i.e., the polarization plane) during propagation, and the electric field vector oscillates within this polarization plane.

[0163] The polarization angle of linear polarization refers to the angle between the electric field vector and a reference direction. By adjusting the polarization angle, the oscillation direction of the electric field vector can be changed. With a horizontal plane as the reference, the polarization plane can be horizontal (i.e., parallel to the horizontal plane, or with an angle of 0 degrees), vertical (i.e., perpendicular to the horizontal plane, or with an angle of 90 degrees), or an angle between the polarization plane and the horizontal plane that is between 0 and 90 degrees.

[0164] For a more detailed description of linear polarization, please refer to the relevant description in the technical terminology section above. For the sake of brevity, it will not be repeated here.

[0165] Figure 12 This is a schematic diagram of circular polarization.

[0166] As mentioned in the technical terminology section above, circular polarization is another form of polarization for electromagnetic waves. For example... Figure 12 As shown, in circular polarization, the electric field vector moves along a circular trajectory in space.

[0167] For a more detailed description of circular polarization, please refer to the relevant description in the technical terminology section above. For the sake of brevity, it will not be repeated here.

[0168] Without loss of generality, as mentioned in the technical terminology section above, elliptic polarization is also a type of polarization for electromagnetic waves. In elliptic polarization, the magnitude and direction of the electric field vector change with time, causing it to form an ellipse in a plane perpendicular to the direction of propagation. Elliptic polarization is a generalized form of linear and circular polarization, which can be considered special cases of elliptic polarization. For a more detailed description of elliptic polarization, please refer to the relevant descriptions in the technical terminology section above; for the sake of brevity, they will not be repeated here.

[0169] By defining different types of polarization signals (such as linear polarization, circular polarization, and elliptic polarization), we can flexibly adapt to different sensing needs and environmental conditions, which helps to accurately control the polarization of antenna electromagnetic wave transmission, improve the accuracy of sensing, and also help to improve the adaptability and reliability of sensing.

[0170] In one possible implementation, the first linearly polarized signal is a linearly polarized signal having a first angle and / or a first initial phase; or, the first circularly polarized signal is a circularly polarized signal having a second initial phase; or, the first elliptically polarized signal is an elliptically polarized signal having a third initial phase.

[0171] As an example, in addition to informing other devices whether it has the capability to transmit linearly polarized signals, the second communication device can also inform the other devices of the linearly polarized signal with a specific polarization angle. That is, the second communication device informs other devices that it has the capability to transmit a linearly polarized signal with a first polarization angle. This is an example, not a limitation, and the first angle could be, for example, +45°, -45°, 0°, or 90°, etc., and this application does not limit this.

[0172] In another example, in addition to informing other devices whether the second communication device has the capability to transmit linearly polarized signals, the second communication device can also inform other devices of the capability to transmit linearly polarized signals with an initial phase of what value. That is, the second communication device informs other devices that it has the capability to transmit linearly polarized signals with an initial phase of the first initial phase.

[0173] In another example, in addition to informing other devices whether the second communication device has the capability to transmit linearly polarized signals, the second communication device can also inform other devices of the capability to transmit linearly polarized signals with a polarization angle and an initial phase.

[0174] Without loss of generality, in addition to informing other devices whether the second communication device has the capability to transmit circularly polarized signals, the second communication device can also inform other devices of the capability to transmit circularly polarized signals with an initial phase of what size. That is, the second communication device informs other devices that it has the capability to transmit circularly polarized signals with an initial phase of a second phase difference.

[0175] Without loss of generality, in addition to informing other devices whether the second communication device has the capability to transmit elliptical polarized signals, the second communication device can also inform other devices of the capability to transmit elliptical polarized signals with an initial phase of what size. That is, the second communication device informs other devices that it has the capability to transmit elliptical polarized signals with an initial phase of a third phase difference.

[0176] By further refining the characteristics that can transmit polarized signals (such as the polarization angle and / or initial phase of linearly polarized signals, the initial phase of circularly polarized signals and elliptically polarized signals), precise control of signal polarization characteristics can be achieved, thereby further improving the efficiency and accuracy of signal transmission.

[0177] In one possible implementation, the second linearly polarized signal is a linearly polarized signal having a second angle and / or a fourth initial phase; or, the second circularly polarized signal is a circularly polarized signal having a fifth initial phase; or, the second elliptically polarized signal is an elliptically polarized signal having a sixth initial phase.

[0178] As an example, in addition to informing other devices whether it has the capability to receive linearly polarized signals, the second communication device can also inform the other devices of the magnitude of the polarization angle of the linearly polarized signal it has the capability to receive. That is, the second communication device informs other devices that it has the capability to receive linearly polarized signals with a polarization angle of a second angle. As an example and not a limitation, the first angle could be, for example, +45°, -45°, 0°, or 90°, etc., and this application does not limit this.

[0179] In another example, in addition to informing other devices whether the second communication device has the ability to receive linearly polarized signals, the second communication device can also inform other devices what the initial phase of the linearly polarized signal is. That is, the second communication device informs other devices that it has the ability to receive linearly polarized signals with an initial phase of the fourth initial phase.

[0180] In another example, in addition to informing other devices whether the second communication device has the ability to receive linearly polarized signals, the second communication device can also inform other devices of the polarization angle and initial phase of the linearly polarized signal.

[0181] Without loss of generality, in addition to informing other devices whether the second communication device has the ability to receive circularly polarized signals, the second communication device can also inform other devices of the initial phase of the circularly polarized signal it has the ability to receive. That is, the second communication device informs other devices that it has the ability to receive circularly polarized signals with an initial phase of the fifth phase difference.

[0182] Without loss of generality, in addition to informing other devices whether the second communication device has the ability to receive elliptical polarized signals, the second communication device can also inform other devices of the initial phase of the elliptical polarized signal it has the ability to receive. That is, the second communication device informs other devices that it has the ability to receive elliptical polarized signals with an initial phase of the sixth phase difference.

[0183] By further refining the characteristics of the polarization signals that can be received (such as the polarization angle and / or initial phase of linearly polarized signals, the initial phase of circularly polarized signals and elliptically polarized signals), precise control of the signal polarization characteristics can be achieved, thereby further improving the efficiency and accuracy of signal transmission.

[0184] In practical applications, the first angle and the second angle may be the same or different; the first initial phase and the fourth initial phase may be the same or different; the second initial phase and the fifth initial phase may be the same or different; and the third initial phase and the sixth initial phase may be the same or different. This application does not impose any limitations on these aspects.

[0185] It is understandable that communication devices can exchange information about whether they have the ability to receive and / or transmit polarized signals, and also about whether they have the ability to adjust the polarization information of electromagnetic waves. For example, they can switch polarization modes, change the polarization angle and / or initial phase of linearly polarized signals, change the initial phase of circularly polarized signals, change the initial phase of elliptically polarized signals, etc.

[0186] The following describes in detail the sensing based on the target communication device.

[0187] It is understandable that in practical application scenarios, the target communication device may include one or more communication devices.

[0188] In one possible implementation A, when the target communication device includes the second communication device, the first communication device performs sensing based on the target communication device, including: the first communication device sending a first request, the first request being used to request the second communication device to send a signal having a third polarization feature, the third polarization feature being a subset of the first polarization feature; the first communication device receiving a first echo signal, the first echo signal being a signal generated based on the third polarization feature; and the first communication device performing sensing analysis based on the features of the first echo signal and the third polarization feature to obtain a sensing result. Correspondingly, the second communication device receives the first request; and the second communication device sends a signal having the third polarization feature based on the first request.

[0189] The third polarization feature is a subset of the first polarization feature. For example, the first polarization feature includes linear polarization, circular polarization, and elliptic polarization, and the third polarization feature includes one or more of linear polarization, circular polarization, and elliptic polarization. It is understood that if the third polarization feature includes all the features in the first polarization feature, the third polarization feature is the same as the first polarization feature.

[0190] In other words, when the target communication device includes the second communication device, it is applicable to, for example... Figures 5 to 8 Any of the sensing modes. For example, the second communication device transmits a polarization signal for sensing (e.g., a signal with a third polarization characteristic), and the first communication device receives an echo signal (e.g., a first echo signal) generated by the reflection of the polarization signal for sensing from the sensing target.

[0191] For example, the first communication device can send a first request to request or instruct the second communication device to send a polarization signal with a specific polarization characteristic (i.e., a third polarization characteristic) indicated by the first request. After the second communication device sends the polarization signal with the third polarization characteristic, the polarization signal is transmitted by the sensing target to generate a first echo signal. The first communication device can receive the first echo signal and perform sensing analysis based on the polarization characteristic of the first echo signal and the third polarization characteristic to obtain a sensing result.

[0192] The first communication device can achieve accurate perception and analysis of the target by requesting the second communication device to send a signal with specific polarization characteristics and receiving the echo signal, thereby helping to improve the accuracy and reliability of the perception results.

[0193] In one possible implementation, the first communication device may also, through a first request, instruct or request the second communication device on which time domain resource the polarization signal with the third polarization characteristic is transmitted.

[0194] As an example, not a limitation, one example is... Figure 13 As shown, the first communication device can also, through a first request, instruct or request the second communication device to transmit a linearly polarized signal with a polarization angle of +45° on the Y time slot of radio frame X, and a linearly polarized signal with a polarization angle of -45° on the Y time slot of radio frame X+K. For example, if N=3 (counting from symbol 0, i.e., the 4th symbol) and K=4, then N+K=3+4=7 (i.e., the 8th symbol). Here, X, Y, Z, and N are all positive integers.

[0195] In another example, the first communication device may also instruct or request the second communication device to transmit an ellipticized signal on the time slot Z symbol N of the radio frame X subframe Y, where the phase difference between the two ellipticized electric field components is M°, and M is a rational number.

[0196] In one possible implementation B, when the target communication device includes the second communication device, the first communication device performs sensing based on the target communication device, including: the first communication device transmitting a signal having a fourth polarization feature, which is a subset of the second polarization feature; the first communication device receiving feature information of a second echo signal generated based on the signal having the fourth polarization feature from the second communication device; and the first communication device performing sensing analysis based on the fourth polarization feature and the feature information of the second echo signal to obtain a sensing result. Correspondingly, the second communication device receives the second echo signal and transmits the feature information of the second echo signal to the first communication device.

[0197] In other words, when the target communication device includes the second communication device, it is applicable to, for example... Figures 5 to 8 Any of the sensing modes. For example, a first communication device transmits a polarization signal for sensing (e.g., a signal with a fourth polarization characteristic), and a second communication device receives an echo signal (e.g., a second echo signal) generated by the reflection of the polarization signal for sensing from the sensing target.

[0198] For example, the first communication device can transmit a signal with a fourth polarization characteristic, which generates a second echo signal upon transmission by the sensing target. The second communication device can receive the second echo signal and transmit characteristic information of the second echo signal to the first communication device. The first communication device receives the characteristic information of the second echo signal and can perform sensing analysis based on the fourth polarization characteristic and the characteristic information of the second echo signal to obtain a sensing result.

[0199] The first communication device can accurately perceive and analyze the target by sending signals with specific polarization characteristics and receiving echo signal characteristic information from the second communication device, thereby helping to improve the accuracy and reliability of the perception results.

[0200] In one possible implementation C, when the target communication device includes the second communication device, the first communication device performs sensing based on the target communication device, including: the first communication device transmitting a signal having a fourth polarization feature, which is a subset of the second polarization feature; the first communication device receiving a sensing result from the second communication device, the sensing result being obtained based on the fourth polarization feature and the characteristics of a second echo signal, the second echo signal being generated based on the signal having the fourth polarization feature. Correspondingly, the second communication device receives the second echo signal, performs sensing analysis based on the feature information of the fourth polarization feature and the second echo signal, obtains a sensing result, and transmits the sensing result to the first communication device.

[0201] In other words, when the target communication device includes the second communication device, it is applicable to, for example... Figures 5 to 8 Any of the sensing modes. For example, a first communication device transmits a polarization signal for sensing (e.g., a signal with a fourth polarization characteristic), and a second communication device receives an echo signal (e.g., a second echo signal) generated by the reflection of the polarization signal for sensing from the sensing target.

[0202] For example, the first communication device can transmit a signal having a fourth polarization characteristic, which generates a second echo signal upon transmission by the sensing target. The second communication device can receive the second echo signal, and can also perform sensing analysis based on the fourth polarization characteristic and the characteristic information of the second echo signal to obtain a sensing result, and send the sensing result to the first communication device.

[0203] The first communication device sends a signal with specific polarization characteristics. The second communication device receives the echo signal, performs sensing analysis to obtain the sensing result, and then feeds the sensing result back to the first communication device, which can reduce the power consumption of the first communication device.

[0204] Optionally, in methods B and C above, when the first communication device is a terminal and the second communication device is a network device, the first communication device may request the second communication device to send the signal with the fourth polarization feature on a certain time domain resource before sending the signal with the fourth polarization feature. The second communication device may schedule time domain resources for the first communication device to send the signal with the fourth polarization feature. Furthermore, the first communication device may send the signal with the fourth polarization feature on the corresponding time domain resource.

[0205] Optionally, in methods B and C above, when the first communication device is a network device and the second communication device is a terminal, the first communication device may inform the second communication device before sending a signal with fourth polarization characteristics that the first communication device will send a signal with fourth polarization characteristics on a certain time domain resource. Furthermore, the first communication device may send the signal with fourth polarization characteristics on the corresponding time domain resource.

[0206] In one possible implementation D, when the target communication device includes the first communication device, the first communication device performs sensing based on the target communication device, including: transmitting a polarization signal; receiving an echo signal generated based on the polarization signal; and performing sensing analysis based on the characteristics of the polarization signal and the characteristics of the echo signal to obtain a sensing result.

[0207] In other words, when the target communication device includes the first communication device, it is applicable to, for example... Figure 3 or Figure 4 Any of the sensing modes. For example, the first communication device transmits a polarization signal for sensing, and the first communication device receives an echo signal generated by the reflection of the polarization signal for sensing from the sensing target.

[0208] When the target communication device includes the first communication device, the first communication device can transmit polarization signals and receive echo signals, so that the first communication device can also sense the target even without the second communication device.

[0209] Optionally, the method 1000 further includes: a first communication device sending second information, the second information indicating whether the first communication device possesses the first capability and / or the second capability. Accordingly, a second communication device receives the second information.

[0210] The second information is similar to the first information. For a description of the second information, please refer to the description of the first information in step 1010 above. For the sake of brevity, it will not be repeated here.

[0211] The first communication device can transmit a second message to inform other communication devices of its own capabilities regarding polarization signals, thereby enabling capability interoperability between the communication devices. This allows both parties to fully utilize their respective capabilities when conducting communication sensing, which helps improve the accuracy of communication sensing.

[0212] It is understandable that the second communication device may also store second information from one or more of the first communication devices.

[0213] Based on the above technical solutions, firstly, by introducing the polarization information of electromagnetic waves into the communication system, communication devices (such as network devices or terminals) can exchange information on their ability to transmit and / or receive polarized signals. This facilitates precise control of the antenna's electromagnetic wave polarization transmission, thereby improving the accuracy of sensing and propelling target recognition technology from simply "seeing" to "seeing clearly" and "distinguishing precisely." Secondly, by further refining the characteristics of polarized signals (such as the polarization angle and / or initial phase of linearly polarized signals, and the initial phase of circularly and elliptically polarized signals), precise control of signal polarization characteristics can be achieved, further improving the efficiency and accuracy of signal transmission.

[0214] The communication method provided in the embodiments of this application has been described in detail above with reference to the accompanying drawings. The communication device provided in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0215] Figure 14 This is a schematic block diagram of a communication device provided in an embodiment of this application.

[0216] like Figure 14 As shown, the communication device 1400 may include a transceiver module 1410, which can implement corresponding communication functions. The transceiver module 1410 may also be referred to as an input / output interface or a communication unit. It should be understood that if the communication device 1400 is a component configured in a network device or terminal, such as a chip, the transceiver module 1410 may be an input / output interface.

[0217] Optionally, the transceiver module 1410 may include a transmitting module and a receiving module. The transmitting module can be used to perform the above-described... Figure 10 In any embodiment, the receiving module performs the transmitting operation of the first or second communication device. Figure 10 The receiving operation of the first communication device or the second communication device in any embodiment.

[0218] It should be understood that when the communication device 1400 is a component configured in a network device or terminal, such as a chip, the transmitting module can be an output interface, and the transmitting operation involved in the embodiments of this application can be performed by the output interface; the receiving module can be an input interface, and the receiving operation involved in the embodiments of this application can be performed by the input interface.

[0219] Optionally, the communication device 1400 may further include a processing module 1420, which can be used to perform processing operations.

[0220] Optionally, the communication device 1400 may further include a storage module for storing instructions and / or data, and the processing module 1420 may read the instructions and / or data from the storage module to enable the device to perform the above-described functions. Figure 10 Any embodiment.

[0221] In one possible design, the aforementioned communication device 1400 can be used to implement the above. Figure 10 In any embodiment, the function of the first communication device may vary, or the communication device 1400 may include functions for implementing the above. Figure 10 Any unit of any function or operation of the first communication device in any embodiment may be implemented wholly or partially by software, hardware, firmware or any combination thereof.

[0222] In another possible design, the aforementioned communication device 1400 can be used to implement the above. Figure 10 In any embodiment, the function of the second communication device may vary, or the communication device 1400 may include components for implementing the above-mentioned functions. Figure 10 Any function or operation of the second communication device in any embodiment may be implemented wholly or partially by software, hardware, firmware or any combination thereof.

[0223] For example, when the communication device 1400 is used to implement the function of the first communication device in the embodiment of the method 1000 described above, the transceiver module 1410 (specifically, a receiving module) can be used to perform... Figure 10 In step 1010, first information is obtained, which indicates whether the second communication device possesses a first capability and / or a second capability. The first capability is the ability to transmit signals with a first polarization characteristic, and the second capability is the ability to receive signals with a second polarization characteristic. The processing module 1420 can be used to execute... Figure 10 In step 1020, based on this first information, perception is performed.

[0224] Optionally, the signal having the first polarization characteristic includes one or more of the following: a first linearly polarized signal, a first circularly polarized signal, or a first ellipticly polarized signal; and / or, the signal having the second polarization characteristic includes one or more of the following: a second linearly polarized signal, a second circularly polarized signal, or a second ellipticly polarized signal.

[0225] Optionally, the first linear polarization signal is a linear polarization signal having a first angle and / or a first initial phase; or, the first circular polarization signal is a circular polarization signal having a second initial phase; or, the first elliptical polarization signal is an elliptical polarization signal having a third initial phase.

[0226] Optionally, the second linear polarization signal is a linear polarization signal having a second angle and / or a fourth initial phase; or, the second circular polarization signal is a circular polarization signal having a fifth initial phase; or, the second elliptical polarization signal is an elliptical polarization signal having a sixth initial phase.

[0227] Optionally, the transceiver module 1410 (specifically, a sending module) can also be used to send second information, which is used to indicate whether the first communication device has the first capability and / or the second capability.

[0228] Optionally, the processing module 1420 may be used to determine a target communication device based on the first information and the sensing requirements, the target communication device including the first communication device and / or the second communication device; and to perform sensing based on the target communication device.

[0229] Optionally, the transceiver module 1410 (specifically, a sending module) can also be used to send a first request, which requests the second communication device to send a signal with a third polarization feature, the third polarization feature being a subset of the first polarization feature; the transceiver module 1410 (specifically, a receiving module) can also be used to receive a first echo signal, which is generated based on the signal with the third polarization feature; the processing module 1420 can specifically be used to perform perception analysis based on the features of the first echo signal and the third polarization feature to obtain a perception result.

[0230] Optionally, the transceiver module 1410 (specifically, a transmitting module) can also be used to transmit a signal with a fourth polarization feature, which is a subset of the second polarization feature; the transceiver module 1410 (specifically, a receiving module) can also be used to receive feature information of a second echo signal from the second communication device, which is generated based on the signal with the fourth polarization feature; the processing module 1420 can specifically be used to perform perception analysis based on the fourth polarization feature and the feature information of the second echo signal to obtain a perception result.

[0231] Optionally, the transceiver module 1410 (specifically, a transmitting module) can also be used to transmit a signal having a fourth polarization feature, which is a subset of the second polarization feature; the transceiver module 1410 (specifically, a receiving module) can also be used to receive a sensing result from the second communication device, which is obtained based on the fourth polarization feature and the features of the second echo signal, which is generated based on the signal having the fourth polarization feature.

[0232] Optionally, the transceiver module 1410 (specifically, a transmitting module) can also be used to transmit a polarization signal; the transceiver module 1410 (specifically, a receiving module) can also be used to receive an echo signal, which is generated based on the polarization signal; the processing module 1420 can specifically be used to perform sensing analysis based on the characteristics of the polarization signal and the characteristics of the echo signal to obtain a sensing result.

[0233] For example, when the communication device 1400 is used to implement the function of the second communication device in the embodiment of the method 1000 described above, the transceiver module 1410 (specifically, a sending module) can be used to perform... Figure 10 In step 1010, first information is sent, which is used to indicate whether the second communication device has a first capability and / or a second capability. The first capability is the ability to transmit a signal with a first polarization characteristic, and the second capability is the ability to receive a signal with a second polarization characteristic.

[0234] Optionally, the signal having the first polarization characteristic includes one or more of the following: a first linearly polarized signal, a first circularly polarized signal, or a first ellipticly polarized signal; and / or, the signal having the second polarization characteristic includes one or more of the following: a second linearly polarized signal, a second circularly polarized signal, or a second ellipticly polarized signal.

[0235] Optionally, the first linear polarization signal is a linear polarization signal having a first angle and / or a first initial phase; or, the first circular polarization signal is a circular polarization signal having a second initial phase; or, the first elliptical polarization signal is an elliptical polarization signal having a third initial phase.

[0236] Optionally, the second linear polarization signal is a linear polarization signal having a second angle and / or a fourth initial phase; or, the second circular polarization signal is a circular polarization signal having a fifth initial phase; or, the second elliptical polarization signal is an elliptical polarization signal having a sixth initial phase.

[0237] Optionally, the transceiver module 1410 (specifically, a receiving module) can also be used to receive second information from the first communication device, the second information being used to indicate whether the first communication device has the first capability and / or the second capability.

[0238] Optionally, the transceiver module 1410 (specifically, a receiving module) can also be used to receive a first request, which requests the second communication device to send a signal with a third polarization feature, the third polarization feature being a subset of the first polarization feature.

[0239] Optionally, the transceiver module 1410 (specifically, the transmitting module) can also be used to transmit a signal having a third polarization feature, which is a subset of the first polarization feature.

[0240] Optionally, the transceiver module 1410 (specifically, a receiving module) can also be used to receive a second echo signal, which is generated based on the signal having a fourth polarization feature, the fourth polarization feature being a subset of the second polarization feature.

[0241] Optionally, the transceiver module 1410 (specifically, a transmitting module) can also be used to transmit the characteristic information of the second echo signal to the first communication device.

[0242] Optionally, the processing module 1420 can be used to perform perception analysis based on the fourth polarization feature and the feature information of the second echo signal to obtain the perception result; the transceiver module 1410 (specifically, the transmitting module) can also be used to send the perception result to the first communication device.

[0243] For a more detailed description of the transceiver module 1410 and the processing module 1420, please refer directly to the above. Figure 10 The relevant descriptions in any embodiment are directly obtained and will not be repeated here.

[0244] It should be noted that the transceiver module can also be called a transceiver unit, transceiver, transceiver machine, or transceiver device, etc. The processing module can also be called a processor, processing board, processing unit, or processing device, etc.

[0245] Optionally, the transceiver module is used to perform the sending and receiving operations of the first or second communication device in the above method. The device in the communication module that implements the receiving function can be regarded as the receiving module, and the device in the communication module that implements the sending function can be regarded as the sending module. That is, the transceiver module includes a receiving module and a sending module.

[0246] In another possible design, the aforementioned transceiver module and / or processing module can be implemented using virtual modules. For example, the processing module can be implemented using software functional modules or virtual devices, and the transceiver module can also be implemented using software functional modules or virtual devices. In another possible design, the processing module or transceiver module can also be implemented using physical devices. For example, if the device is implemented using a chip / chip circuit, the transceiver module can be an input / output circuit and / or a communication interface, performing input operations (corresponding to the aforementioned receiving operation) and output operations (corresponding to the aforementioned sending operation); the processing module is an integrated processor, microprocessor, or integrated circuit.

[0247] It should be understood that the module division in the embodiments of this application is illustrative and only represents a logical functional division. In actual implementation, there may be other division methods. Furthermore, the functional modules in the various embodiments of this application can be integrated into a single processor, exist as separate physical entities, or be integrated into a single module. The integrated modules described above can be implemented in hardware or as software functional modules.

[0248] Figure 15 This is another schematic block diagram of the communication device provided in the embodiments of this application. The device 1500 can be a chip system, or it can be a device configured with a chip system to implement the above-described method embodiments. In the embodiments of this application, the chip system can be composed of chips, or it can include chips and other discrete devices.

[0249] like Figure 15 As shown, the device 1500 may include a processor 1510, which can be used to execute computer programs or instructions in memory to achieve the above. Figure 15 The steps performed by the first communication device or the steps performed by the second communication device in any of the method embodiments shown.

[0250] Optionally, the device 1500 further includes a communication interface 1520. The communication interface 1520 can be used to communicate with other devices via a transmission medium, thereby enabling the device 1500 to communicate with other devices. The communication interface 1520 may be, for example, a transceiver, interface, bus, circuit, or a device capable of transmitting and receiving functions. The processor 1510 can use the communication interface 1520 to input and output data and to implement the above-mentioned functions. Figure 15The steps described in any of the illustrated embodiments. Specifically, the device 1500 can be used to implement the functions of the first communication device or the second communication device in the above method embodiments.

[0251] When device 1500 is used to achieve the above Figure 15 In any of the illustrated embodiments, the processor 1510 is used to implement the functions of the processing module 1420, and the communication interface 1520 is used to implement the functions of the transceiver module 1410.

[0252] Optionally, the device 1500 further includes at least one memory 1530 for storing program instructions and / or data. The memory 1530 is coupled to the processor 1510. The coupling in this embodiment is an indirect coupling or communication connection between devices, units, or modules, and can be electrical, mechanical, or other forms, used for information exchange between devices, units, or modules. The processor 1510 may operate in conjunction with the memory 1530. The processor 1510 may execute program instructions stored in the memory 1530. At least one of the at least one memory may be included in the processor.

[0253] It should be understood that the coupling in the embodiments of this application is an indirect coupling or communication connection between devices, units, or modules, which can be electrical, mechanical, or other forms, used for information interaction between devices, units, or modules. The processor 1510 may operate in conjunction with the memory 1530. The embodiments of this application do not limit the specific connection medium between the processor 1510, the communication interface 1520, and the memory 1530. The embodiments of this application... Figure 15 The processor 1510, communication interface 1520, and memory 1530 are connected via bus 1540. Bus 1540 is... Figure 15 The connections between other components are shown in bold lines only and are not intended to be limiting. The bus can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of illustration, Figure 15 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0254] It should be understood that when the aforementioned communication device 1500 is a chip applied to the first communication device, the chip implements the functions of the first communication device in the above method embodiments. The chip of the first communication device receives signals from other modules (such as radio frequency modules or antennas) in the first communication device, and these signals may be sent to the first communication device by the second communication device; or, the chip of the first communication device sends signals to other modules (such as radio frequency modules or antennas) in the first communication device, and these signals may be sent to the second communication device by the first communication device.

[0255] When the aforementioned communication device 1500 is a chip applied to a second communication device, the chip implements the functions of the second communication device in the above method embodiments. The chip of the second communication device receives signals from other modules (such as radio frequency modules or antennas) in the second communication device, and these signals may be sent from the first communication device to the second communication device; or, the chip of the second communication device sends signals to other modules (such as radio frequency modules or antennas) in the second communication device, and these signals may be sent from the second communication device to the first communication device.

[0256] It should be noted that when the communication device 1500 is a first communication device or a second communication device, the communication interface 1520 can be a transceiver, specifically including a transmitter and a receiver. The transmitter is used to send signals, and the receiver is used to receive signals. When the communication device 1500 is a chip applied to the first or second communication device, the communication interface 1520 can be an input / output circuit, a bus, a module, a pin, or other types of communication interface input / output circuit. The input circuit in the input / output circuit can be used for receiving, and the output interface can be used for sending.

[0257] This application also provides a chip system including at least one processor for implementing the above. Figure 10 The functions involved in the method performed by the first or second communication device in any of the illustrated embodiments include, for example, receiving or processing the data and / or information involved in the above method.

[0258] In one possible design, the chip system also includes a memory for storing program instructions and data, which may be located inside or outside the processor.

[0259] The chip system can consist of chips or include chips and other discrete components.

[0260] This application also provides a computer program product, which includes a computer program (also referred to as code or instructions) that, when executed, can perform the above-mentioned tasks. Figure 10 The method described in any of the illustrated embodiments.

[0261] This application also provides a computer-readable storage medium storing a computer program (also referred to as code or instructions). When the computer program is run, the above-described functions can be achieved. Figure 10 The method described in any of the illustrated embodiments.

[0262] This application also provides a communication system, which includes the first communication device and the second communication device as described above.

[0263] This application also provides a communication system, which includes a first communication device and a second communication device, wherein the first communication device is used to implement the above-mentioned... Figure 10 The function of the first communication device in any of the illustrated embodiments, or the function of the second communication device to implement the above. Figure 10 The function of the second communication device in any of the illustrated embodiments.

[0264] It should be understood that the processor in the embodiments of this application can be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method embodiments can be completed by the integrated logic circuitry in the processor's hardware or by instructions in software form. The processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory, and the processor reads the information in the memory and, in conjunction with its hardware, completes the steps of the above method.

[0265] It should also be understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0266] The terms "unit," "module," etc., used in this specification can be used to refer to computer-related entities, hardware, firmware, combinations of hardware and software, software, or software in execution. In the embodiments of this application, "unit" and "module" have the same meaning and can be used interchangeably.

[0267] Those skilled in the art will recognize that the various illustrative logical blocks and steps described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application. In the several embodiments provided in this application, it should be understood that the disclosed apparatus, devices, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the shown or discussed mutual couplings or direct couplings or communication connections may be through some interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0268] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0269] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0270] In the above embodiments, the functions of each functional unit can be implemented entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions (programs). When the computer program instructions (programs) are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs, DVDs), or semiconductor media (e.g., solid-state disks, SSDs), etc.

[0271] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the technology, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

Claims

1. A communication method, characterized in that, Applied to a first communication device, the method includes: Obtain first information, the first information being used to indicate whether the second communication device possesses a first capability and / or a second capability, the first capability being the ability to transmit a signal having a first polarization characteristic, and the second capability being the ability to receive a signal having a second polarization characteristic; Based on the first piece of information, perception is performed.

2. The method according to claim 1, characterized in that, The signal having the first polarization characteristic includes one or more of the following: a first linearly polarized signal, a first circularly polarized signal, or a first ellipticly polarized signal; and / or, The signal having the second polarization characteristic includes one or more of the following: a second linearly polarized signal, a second circularly polarized signal, or a second ellipticly polarized signal.

3. The method according to claim 2, characterized in that, The first linearly polarized signal is a linearly polarized signal having a first angle and / or a first initial phase; or, The first circularly polarized signal is a circularly polarized signal with a second initial phase; or, The first elliptic polarization signal is an elliptic polarization signal with a third initial phase.

4. The method according to claim 2 or 3, characterized in that, The second linearly polarized signal is a linearly polarized signal having a second angle and / or a fourth initial phase; or, The second circularly polarized signal is a circularly polarized signal with a fifth initial phase; or, The second elliptic polarization signal is an elliptic polarization signal with a sixth initial phase.

5. The method according to any one of claims 1 to 4, characterized in that, The method further includes: Send a second message, the second message being used to indicate whether the first communication device possesses the first capability and / or the second capability.

6. The method according to any one of claims 1 to 5, characterized in that, The perception based on the first information includes: Based on the first information and the perception requirement, a target communication device is determined, wherein the target communication device includes the first communication device and / or the second communication device; Sensing is performed based on the target communication device.

7. The method according to claim 6, characterized in that, When the target communication device includes the second communication device, the sensing based on the target communication device includes: Send a first request, the first request being used to request the second communication device to send a signal having a third polarization feature, the third polarization feature being a subset of the first polarization feature; Receive a first echo signal, which is generated based on the third polarization characteristic; Based on the characteristics of the first echo signal and the third polarization characteristics, a sensing analysis is performed to obtain the sensing results.

8. The method according to claim 6, characterized in that, When the target communication device includes the second communication device, the sensing based on the target communication device includes: Send a signal having a fourth polarization feature, which is a subset of the second polarization feature; Receive characteristic information of a second echo signal from the second communication device, wherein the second echo signal is generated based on the signal having the fourth polarization characteristic; Based on the fourth polarization feature and the feature information of the second echo signal, a perception analysis is performed to obtain the perception result.

9. The method according to claim 6, characterized in that, When the target communication device includes the second communication device, the sensing based on the target communication device includes: Send a signal having a fourth polarization feature, which is a subset of the second polarization feature; The sensing result is received from the second communication device. The sensing result is obtained based on the fourth polarization feature and the features of the second echo signal, which is generated based on the signal having the fourth polarization feature.

10. The method according to claim 6, characterized in that, When the target communication device includes the first communication device, the sensing based on the target communication device includes: Send polarization signal; Receive an echo signal, the echo signal being generated based on the polarization signal; Based on the characteristics of the polarization signal and the echo signal, a sensing analysis is performed to obtain the sensing results.

11. A communication method, characterized in that, Applied to a second communication device, the method includes: Send a first message, the first message being used to indicate whether the second communication device has a first capability and / or a second capability, the first capability being the ability to transmit a signal with a first polarization characteristic, and the second capability being the ability to receive a signal with a second polarization characteristic.

12. The method according to claim 11, characterized in that, The signal having the first polarization characteristic includes one or more of the following: a first linearly polarized signal, a first circularly polarized signal, or a first ellipticly polarized signal; and / or, The signal having the second polarization characteristic includes one or more of the following: a second linearly polarized signal, a second circularly polarized signal, or a second ellipticly polarized signal.

13. The method according to claim 12, characterized in that, The first linearly polarized signal is a linearly polarized signal having a first angle and / or a first initial phase; or, The first circularly polarized signal is a circularly polarized signal with a second initial phase; or, The first elliptic polarization signal is an elliptic polarization signal with a third initial phase.

14. The method according to claim 12 or 13, characterized in that, The second linearly polarized signal is a linearly polarized signal having a second angle and / or a fourth initial phase; or, The second circularly polarized signal is a circularly polarized signal with a fifth initial phase; or, The second elliptic polarization signal is an elliptic polarization signal with a sixth initial phase.

15. The method according to any one of claims 11 to 14, characterized in that, The method further includes: Receive second information from the first communication device, the second information being used to indicate whether the first communication device possesses the first capability and / or the second capability.

16. The method according to any one of claims 11 to 15, characterized in that, The method further includes: A first request is received, the first request being used to request the second communication device to send a signal having a third polarization feature, the third polarization feature being a subset of the first polarization feature.

17. The method according to any one of claims 11 to 16, characterized in that, The method further includes: A signal with a third polarization feature is transmitted, wherein the third polarization feature is a subset of the first polarization feature.

18. The method according to any one of claims 11 to 17, characterized in that, The method further includes: A second echo signal is received, which is generated based on the signal having a fourth polarization feature, which is a subset of the second polarization feature.

19. The method according to claim 18, characterized in that, The method further includes: The characteristic information of the second echo signal is sent to the first communication device.

20. The method according to claim 18, characterized in that, The method further includes: Based on the fourth polarization characteristic and the characteristic information of the second echo signal, a sensing analysis is performed to obtain the sensing result; The sensing results are sent to the first communication device.

21. A communication device, characterized in that, The processor includes a processor coupled to a memory for storing computer programs, and the processor for executing the computer programs stored in the memory. So that the communication device performs the method as described in any one of claims 1 to 10; or, So that the communication device performs the method as described in any one of claims 11 to 20.

22. A communication device, characterized in that, It includes a processor and a communication interface, wherein the processor is used to control the communication interface. To implement the method as described in any one of claims 1 to 10; or, To implement the method as described in any one of claims 11 to 20.

23. A chip system, characterized in that, The chip system is used in a communication device, and the chip system includes one or more processors, which are used to invoke computer instructions. So that the communication device performs the method as described in any one of claims 1 to 10, or, So that the communication device performs the method as described in any one of claims 11 to 20.

24. A communication system, characterized in that, Includes a first communication device and at least one second communication device. The first communication device is used to perform the method as described in any one of claims 1 to 10, and the second communication device is used to perform the method as described in any one of claims 11 to 20.

25. A computer-readable storage medium, characterized in that, The system stores instructions that, when executed, Cause the method as described in any one of claims 1 to 10 to be performed, or, This causes the method as described in any one of claims 11 to 20 to be performed.

26. A computer program product, characterized in that, The computer program product includes: a computer program, which, when run,... Cause the method as described in any one of claims 1 to 10 to be performed, or, This causes the method as described in any one of claims 11 to 20 to be performed.

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