Communication method and device, storage medium, program product and communication equipment

Abstract

Disclosed in an embodiment of the present invention are a communication method and apparatus, a storage medium, a program product, and a communication device, the method comprising: a first node receiving first information sent by a second node, the first information comprising channel polarization information respectively corresponding to one or more first beams emitted by the first node; wherein each first wave beam has two polarization directions, and the channel polarization information is used for adjusting the transmitting power of the corresponding first wave beam in the two polarization directions; and the one or more first beams are reflected by the sensing target and then received by the second node.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wireless communication, and in particular to a communication method, device, storage medium, program product and communication equipment. BACKGROUND

[0002] Communication and sensing integration is one of the key technologies of the sixth generation mobile communication technology (6G, 6th generation wireless systems). As a new type of fusion technology, communication and sensing functions can share the same set of software and hardware and spectrum resources, which can improve the utilization of spectrum and resources. Communication and sensing integration mainly targets target measurement of non-network objects, breaking through the limitation of existing networks that can only measure the location of network terminals, enabling cellular networks to support a variety of new functions and services.

[0003] In cooperative sensing, several base stations form a cooperative sensing cluster to participate in sensing. Usually, one base station acts as a transmitting node to send sensing signals to space, and the remaining base stations act as receiving nodes to receive signals reflected by the target. After further signal processing on the received signals, the transmitting and receiving base stations and the server complete the sensing process by interacting with the signal processing results to determine the sensing target information.

[0004] In existing antenna architectures, two streams of information can be carried by two polarization directions, but this multi-stream information cannot improve the sensing accuracy, and the power of the two polarization directions cannot be independently controlled. In addition, since the channel generated by the reflection of the sensing target has polarization characteristics, it is currently impossible to maximize the use of antenna polarization characteristics for sensing. SUMMARY

[0005] To solve the existing technical problems, the embodiments of the present application provide a communication method, device, storage medium, program product and communication equipment.

[0006] To achieve the above purpose, the technical scheme of the embodiments of the present application is as follows:

[0007] In a first aspect, the embodiments of the present application provide a communication method, comprising:

[0008] The first node receives first information sent by the second node, the first information comprising channel polarization information corresponding to each of one or more first beams transmitted by the first node; wherein each first beam has two polarization directions, and the channel polarization information is used to adjust the transmission power of the corresponding first beam in the two polarization directions; and the one or more first beams are reflected by a sensing target and received by the second node.

[0009] In the solution above, before the first node receives the first information sent by the second node, the method further includes: the first node transmits each first beam according to the first power corresponding to the first polarization direction and the second power corresponding to the second polarization direction.

[0010] In the solution above, the method further includes: the first node sends second information to the second node, the second information including the first power and the second power corresponding to each first beam.

[0011] In the solution above, the method further includes: the first node adjusts the first power and the second power of each first beam according to the first information.

[0012] In the solution above, the first node adjusts the first power and the second power of each first beam according to the first information includes: the first node determines a first ratio according to the channel polarization information corresponding to each first beam, the first ratio representing a ratio of a channel gain corresponding to the first polarization direction to a channel gain corresponding to the second polarization direction of the first beam; and determines the adjusted first power and the adjusted second power according to the total transmission power of each first beam and the first ratio.

[0013] In the solution above, the method further includes: the first node retransmits each first beam according to the adjusted first power and the adjusted second power.

[0014] In the solution above, the channel polarization information includes at least one of: a channel gain corresponding to the first polarization direction and a channel gain corresponding to the second polarization direction of the first beam; and a ratio of the channel gain corresponding to the first polarization direction to the channel gain corresponding to the second polarization direction of the first beam.

[0015] In the solution above, the first beam includes at least one of: a synchronization signal block (SSB), a channel state information reference signal (CSI-RS), a demodulation reference signal (DMRS), and a positioning reference signal (PRS).

[0016] In a second aspect, an embodiment of the present application further provides a communication method, including:

[0017] The second node sends first information to the first node, where the first information includes channel polarization information corresponding to one or more first beams transmitted by the first node; each first beam has two polarization directions, and the channel polarization information is used by the first node to adjust the transmission power of the corresponding first beam in the two polarization directions; the one or more first beams are received by the second node after being reflected by the sensing target.

[0018] In the above scheme, before the second node sends the first information to the first node, the method also includes: the second node receives the second information sent by the first node, the second information including the first power and the second power corresponding to each first beam transmitted by the first node; the first power is the transmission beam of the corresponding first beam in the first polarization direction, and the second power is the transmission power of the corresponding first beam in the second polarization direction.

[0019] In the above scheme, the method also includes: the second node transmits each second beam according to the third power corresponding to the first polarization direction and the fourth power corresponding to the second polarization direction of each second beam, and the second beam is used to receive the first beam reflected by the sensed target.

[0020] In the above scheme, the method also includes: the second node obtains the fifth power and sixth power corresponding to each first beam; the fifth power is the receiving power of the first beam received through the corresponding second beam in the first polarization direction, and the sixth power is the receiving power of the first beam received through the corresponding second beam in the second polarization direction; the first information is determined based on the second information, the fifth power and sixth power of each first beam, and the third power and fourth power of the corresponding second beam.

[0021] In the above scheme, the channel polarization information includes at least one of the following: the channel gain of the first beam corresponding to the first polarization direction and the channel gain corresponding to the second polarization direction; and the ratio of the channel gain of the first beam corresponding to the first polarization direction to the channel gain corresponding to the second polarization direction.

[0022] In the above solution, the first beam includes at least one of the following: SSB, CSI-RS, DMRS, and PRS.

[0023] In a third aspect, the embodiments of the present application further provide a communication device, comprising a first communication unit configured to receive first information sent by a second node, wherein the first information comprises channel polarization information corresponding to one or more first beams transmitted by a first node, each first beam has two polarization directions, and the channel polarization information is used to adjust the transmission power of the corresponding first beam in the two polarization directions; and the one or more first beams are reflected by a target to be perceived and then received by the second node.

[0024] In a fourth aspect, the embodiments of the present application further provide a communication device, comprising a second communication unit configured to send first information to a first node, wherein the first information comprises channel polarization information corresponding to one or more first beams transmitted by the first node, each first beam has two polarization directions, and the channel polarization information is used to adjust the transmission power of the corresponding first beam in the two polarization directions; and the one or more first beams are reflected by a target to be perceived and then received by the second node.

[0025] In a fifth aspect, the embodiments of the present application further provide a computer readable storage medium, which stores a computer program, and the program is executed by a processor to implement the steps of the method in the first aspect or the second aspect.

[0026] In a sixth aspect, the embodiments of the present application further provide a computer program product, which comprises a computer program, and the computer program is executed by a processor to implement the steps of the method in the first aspect or the second aspect.

[0027] In a seventh aspect, the embodiments of the present application further provide a communication device, which comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the program to implement the steps of the method in the first aspect or the second aspect.

[0028] The communication method, device, storage medium, program product and communication device provided by the embodiments of the present application can receive the first information fed back by the second node, the first information comprises channel polarization information corresponding to one or more first beams transmitted by the first node, so that the first node adjusts the transmission power of each first beam in two polarization directions, which can adjust the power distribution of the transmission node in the two polarization directions in cooperative perception, and improve the channel gain and perception accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 Flowchart of the communication method of the embodiments of the present application Figure One ;

[0030] Figure 2A schematic diagram for cooperative sensing of the first node and the second node of the embodiment of the present application;

[0031] Figure 3A A schematic diagram for adjusting the first power and the second power of the embodiment of the present application;

[0032] Figure 3B Another schematic diagram for adjusting the first power and the second power of the embodiment of the present application;

[0033] Figure 4 A flowchart of the communication method of the embodiment of the present application Figure Two ;

[0034] Figure 5 An exemplary flowchart of the communication method of the embodiment of the present application applied to cooperative sensing;

[0035] Figure 6 A schematic diagram of the composition structure of the communication device of the embodiment of the present application Figure One ;

[0036] Figure 7 A schematic diagram of the composition structure of the communication device of the embodiment of the present application Figure Two ;

[0037] Figure 8 A schematic diagram of the structure of the communication device of the embodiment of the present application. DETAILED DESCRIPTION

[0038] The present application will be further described below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0039] In the description of the present application, it should be noted that the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance. These terms are only used to distinguish one element (or threshold, application, or instruction, or operation) from another element (or threshold, application, or instruction, or operation). For example, the first operation can be referred to as the second operation, and the second operation can also be referred to as the first operation, without departing from the scope of the present application, and the first operation and the second operation are both operations, but they are not the same operation.

[0040] The term "and / or" in the embodiments of the present application means any and all possible combinations of the associated listed items. It should also be noted that the term "comprising / comprising" as used in the present specification specifies the presence of stated features, integers, steps, operations, elements, and / or components but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0041] The steps in the embodiments of the present application do not necessarily have to be processed in the described order of steps, and the steps in the embodiments can be selectively rearranged, deleted, or added as required. The step description in the embodiments of the present application is only an optional sequence combination, and does not represent all sequence combinations of the embodiments of the present application. The sequence of steps in the embodiments cannot be considered as a limitation of the present application.

[0042] The embodiments of the present application provide a communication method. Figure 1 The flowchart of the communication method of the embodiments of the present application is shown in Figure One As shown in Figure 1 The method comprises the following steps:

[0043] In step 101, the first node receives first information sent by the second node, wherein the first information comprises channel polarization information corresponding to one or more first beams respectively transmitted by the first node; each first beam has two polarization directions, and the channel polarization information is used to adjust the transmission power of the corresponding first beam in the two polarization directions respectively; and the one or more first beams are reflected by a sensing target and received by the second node.

[0044] In the present embodiment, the first node is a transmission node of the first beam, or can also be referred to as a transmission device, a transmission apparatus, a transmission end, a transmission node, a transmission device, a transmission apparatus, a transmission end, etc., and the second node is used to receive the echo beam of the first beam after the sensing target is transmitted. The second node can also be referred to as a receiving node, a receiving device, a receiving apparatus, a receiving end, etc., or can be referred to as a cooperative node, a cooperative node, etc. in cooperative sensing or cooperative sensing.

[0045] In some embodiments, the first node and the second node can each be an access network device, such as a base station, an evolved node B (eNB), a home base station, an access point (AP) in a Wireless Fidelity (WiFi) system, a wireless relay node, a wireless backhaul node, a transmission point (TP), a transmission and reception point (TRP), and the like, and can also be a next generation base station (gNB) in a New Radio (NR) system, or a component or a partial device constituting a base station, and the like. It should be understood that the specific technology and specific device form adopted by the first node and the second node in each embodiment of the present application is not limited.

[0046] In each embodiment of the present application, the sensing target can include an object / entity, a region, and the like to be sensed. Figure 2 A schematic diagram of the first node and the second node for cooperative sensing is shown in FIG. 1, wherein a sensing signal (i.e., a first beam) transmitted by the first node is reflected by a target and the echo signal is received by the second node. Figure 2

[0047] In some embodiments, the method can further include that the first node receives a first request transmitted by an upper layer network, and the first request is used to request the first node to perform cooperative sensing or collaborative sensing to form a cooperative cluster with the second node. The first request can include parameter information required by a corresponding sensing service, such as angle information, distance information, Doppler frequency, and the like of the sensing target. The upper layer network can be a server, a core network device (such as a network function for sensing and / or positioning), an access network device, and the like.

[0048] In some embodiments, the first node receiving the first information transmitted by the second node can include that the first node receives one or more first information respectively transmitted by one or more second nodes, and each first information can include channel polarization information obtained by a corresponding second node. It can be understood that the second information transmitted by each second node only includes channel polarization information corresponding to one or more first beams respectively received by the second node.

[0049] In this embodiment, each first beam has two polarization directions. For example, the two polarization directions are perpendicular to each other, and the first node can transmit the first beam through a dual-polarized antenna, which includes two types of antennas with perpendicular polarization directions, and the first node can transmit the first beam through the two types of antennas with perpendicular polarization directions at the same angle (or direction).In some embodiments, the method can further include that the first node receives a first request transmitted by an upper layer network, and the first request is used to request the first node to perform cooperative sensing or collaborative sensing to form a cooperative cluster with the second node. The first request can include parameter information required by a corresponding sensing service, such as angle information, distance information, Doppler frequency, and the like of the sensing target. The upper layer network can be a server, a core network device (such as a network function for sensing and / or positioning), an access network device, and the like.

[0050] As an example, the first beam can include at least one of a synchronization signal block (SSB), a channel-state-information reference signal (CSI-RS), a demodulation reference signal (DMRS), and a positioning reference signal (PRS). Figure 2 The sensing signal in the embodiment can be one or more of an SSB, a CSI-RS, a DMRS, and a PRS.

[0051] In some embodiments, the two polarization directions can include a first polarization direction and a second polarization direction perpendicular to each other. For example, if the first polarization direction is a horizontal polarization direction, the second polarization direction can be a vertical polarization direction. Horizontal polarization refers to the electromagnetic wave radiated by the antenna in the maximum radiation direction, and the electric field strength vector is parallel to the ground. Vertical polarization refers to the electromagnetic wave radiated by the antenna in the maximum radiation direction, and the electric field strength vector is perpendicular to the ground. Alternatively, the first polarization direction can be a +45° polarization direction, and the second polarization direction can be a -45° polarization direction.

[0052] In some embodiments, the channel polarization information can represent the channel gain of the echo signal received by the second node in the two polarization directions, respectively. Thus, the first node can redistribute the transmission power of each first beam in the two polarization directions according to the channel gain corresponding to the two polarization directions.

[0053] The communication method of the embodiment can feed back the channel polarization information corresponding to each first beam to the first node, and the first node can adjust the transmission power of each first beam in the two polarization directions according to the channel polarization information corresponding to each first beam. The power distribution of the transmission node in the two polarization directions of the antenna in the cooperative sensing can be adjusted, and the channel gain and sensing accuracy can be improved.

[0054] In some embodiments, the channel polarization information can include at least one of the following: the channel gain corresponding to the first polarization direction and the channel gain corresponding to the second polarization direction of the first beam; and the ratio of the channel gain corresponding to the first polarization direction to the channel gain corresponding to the second polarization direction of the first beam.

[0055] In this embodiment, the first information can include the channel gain of each first beam corresponding to the first polarization direction and the channel gain of each first beam corresponding to the second polarization direction received by the second node, and / or the ratio of the channel gain of each first beam corresponding to the first polarization direction to the channel gain of each first beam corresponding to the second polarization direction.

[0056] In some embodiments, the first node transmits each first beam by referring to the respective reference signal with the reference signal number being {CSI-RS1, CSI-RS2, CSI-RS3, CSI-RS4}, as shown in the following table. Figure 2 As shown, the second node receives the echo signal after the reflection of the sensing target, and extracts the reference signal number covering the sensing target, for example {Target 1: CSI-RS2, Target 2: CSI-RS4}, after the background noise and clutter elimination of the signal, and obtains the corresponding channel polarization information, for example, the channel gain of CSI-RS2 corresponding to the horizontal polarization direction is H 21 , and the channel gain corresponding to the vertical polarization direction is H 22 , the channel gain of CSI-RS4 corresponding to the horizontal polarization direction is H 41 , and the channel gain corresponding to the vertical polarization direction is H 42 Therefore, the first information sent by the second node to the first node can include {CSI-RS2: H 21 & H 22 , CSI-RS4: H 41 & H 42} and / or {CSI-RS2: H 21 / H 22 , CSI-RS4: H 41 / H 42}.

[0057] In an optional embodiment of the present application, before the first node receives the first information sent by the second node, the method can further include: the first node transmits each first beam according to the first power corresponding to the first polarization direction and the second power corresponding to the second polarization direction.

[0058] In this embodiment, the first node can transmit the first beam by the antenna with two polarization directions in the same transmission direction, and the transmission direction corresponding to different first beams can be different, wherein the transmission power of the first polarization direction is the first power, and the transmission power of the second polarization direction is the second power. For example, the antenna with two polarization directions carries two independent and orthogonal signals, and both of the two signals are transmitted in the same direction to form a beam for sensing, wherein one of the two signals is, for example, the horizontal polarization direction, and the corresponding transmission power is P T‖, for example, P T‖ = 0.5P T , another stream signal is vertically polarized, and the corresponding transmission power is P T⊥ , which also accounts for half of the total beam transmission power, i.e., P T⊥ = 0.5P T , P T represents the total beam transmission power.

[0059] As an optional implementation, the method can further include that the first node sends second information to the second node, the second information including the first power and the second power corresponding to each first beam. In this embodiment, the first node sends the first power corresponding to the first polarization direction and the second power corresponding to the second polarization direction of each first beam to the second node, so that the second node can determine the channel gain of the received echo signal in the two polarization directions according to the first power and the second power, and further feeds back the first information to the first node.

[0060] In some embodiments, the method can further include that the first node adjusts the first power and the second power of each first beam according to the first information.

[0061] In this embodiment, the first node can reallocate the first power corresponding to the first polarization direction and the second power corresponding to the second polarization direction of each first beam according to the channel polarization information corresponding to each first beam. For example, the power sum of the first power and the second power before adjustment is the same as the power sum of the first power and the second power after adjustment.

[0062] The communication method of this embodiment can adjust the transmission power of each first beam in the two polarization directions by the channel polarization information corresponding to each first beam, which can adjust the power distribution of the transmission node in the two polarization directions of the antenna in cooperative sensing, and improve the channel gain and sensing accuracy.

[0063] As an optional implementation, the first node adjusts the first power and the second power of each first beam according to the first information, which can include that the first node determines a first ratio according to the channel polarization information corresponding to each first beam, the first ratio representing the ratio of the channel gain corresponding to the first polarization direction to the channel gain corresponding to the second polarization direction of the first beam; and determines the adjusted first power and the adjusted second power according to the total transmission power of each first beam and the first ratio. In this embodiment, the first node can adjust the transmission power of the two polarization directions of each first beam covering the sensing target according to the first information fed back by the second node.

[0064] For example, with respect to any one first beam, the first power corresponding to the first polarization direction is P T1 , the second power corresponding to the second polarization direction is P T2 , and the total power of the first beam is P T = P T1 + P T2 ; according to the first information fed back by the second node, the first node can determine the first ratio of the channel gain corresponding to the first polarization direction to the channel gain corresponding to the second polarization direction, i.e., H1 / H2, and then the adjusted first power can be P T H1 / (H1+H2), and the adjusted second power can be P T H2 / (H1+H2).

[0065] In some embodiments, the first node can adjust the first power and the second power based on a conventional multi-antenna radio frequency architecture, Figure 3A As a schematic diagram for adjusting the first power and the second power according to an embodiment of the present application, the first node can realize the distribution control of the first power and the second power corresponding to the two polarization directions by adjusting the output power of the power amplifiers of the two radio frequency chains, as shown in FIG. 2A. Figure 3A For example, with respect to the channel gain of the horizontal polarization direction being H || and the channel gain of the vertical polarization direction being H ⊥ , the output power of the power amplifier corresponding to the horizontal polarization can be adjusted to P T H || / (H || +H ⊥ ), and P T represents the total power, and the output power of the power amplifier corresponding to the vertical polarization can be adjusted to P T H ⊥ / (H || +H ⊥ ); or the first node can also adjust the first power and the second power based on a new multi-antenna radio frequency architecture of reduced radio frequency chain, Figure 3B As another schematic diagram for adjusting the first power and the second power according to an embodiment of the present application, the first node can adjust the power ratio of the antennas corresponding to the two polarization directions by using an adjustable load network under the premise that the total power is fixed, as shown in FIG. 2B. Figure 3B For example, the power ratio of the antennas corresponding to the horizontal polarization direction and the vertical polarization direction can be H || / H ⊥ , and the adjusted first power corresponding to the horizontal polarization direction and the adjusted second power corresponding to the vertical polarization direction can be as shown in FIG. 2B. Figure 3Bas shown.

[0066] The communication method of the embodiment of the application can maximize the utilization of the antenna polarization characteristics for sensing and improve the channel gain and sensing accuracy by re-distributing the transmission power of each first beam in the first polarization direction and the second polarization direction according to the ratio of the channel gain corresponding to the first polarization direction to the channel gain corresponding to the second polarization direction.

[0067] In an optional embodiment of the application, the method can further include: re-transmitting, by the first node, each first beam after power adjustment according to the adjusted first power and the adjusted second power. In this embodiment, the first node re-transmits each first beam after power adjustment, the second node can continue to perform the sensing task according to each first beam after power adjustment, and re-sends new first information to the first node, and the above process is repeated until the corresponding sensing service meets the termination condition.

[0068] As an example, the termination condition corresponding to the sensing service can include at least one of the following: cancellation of the requirement corresponding to the sensing service, the sensing service exceeding the expected time, saturation of the node resource, completion of the sensing service, and the like.

[0069] The embodiment of the application also provides a communication method. Figure 4 The flowchart of the communication method of the embodiment of the application is shown in Figure Two As shown, the method includes: Figure 4 The method includes:

[0070] In step 201, the second node sends first information to the first node, the first information including channel polarization information corresponding to each of one or more first beams transmitted by the first node; each first beam has two polarization directions, and the channel polarization information is used by the first node to adjust the transmission power of the corresponding first beam in the two polarization directions; the one or more first beams are reflected by a sensing target and received by the second node.

[0071] The detailed description of step 201 in this embodiment can refer to the detailed description of step 101 in the foregoing embodiments, and will not be described here to save space.

[0072] In an optional embodiment of the application, before the second node sends the first information to the first node, the method can further include: receiving, by the second node, second information sent by the first node, the second information including first power and second power corresponding to each first beam transmitted by the first node; the first power is the transmission power of the corresponding first beam in the first polarization direction, and the second power is the transmission power of the corresponding first beam in the second polarization direction.

[0073] Exemplarily, the first beams can include at least one of the following: SSB, CSI-RS, DMRS, PRS.

[0074] In an optional embodiment of the present application, the method can further include: the second node transmitting each second beam according to a third power corresponding to the first polarization direction and a fourth power corresponding to the second polarization direction, the second beam being used for receiving the first beam reflected by the perceived target.

[0075] In the embodiment, the second beam is a receiving beam of the first beam transmitted by the second node and used for receiving the first beam reflected by the perceived target. Exemplarily, the second beam is, for example, an omnidirectional dual-polarized beam, wherein the third power of the second beam corresponding to the horizontal polarization direction is P R|| , and the fourth power of the second beam corresponding to the vertical polarization direction is P R⊥ .

[0076] In some embodiments, the method can further include: the second node obtaining a fifth power and a sixth power corresponding to each first beam; the fifth power being a receiving power of the first beam in the first polarization direction received through the corresponding second beam, and the sixth power being a receiving power of the first beam in the second polarization direction received through the corresponding second beam; and determining the first information according to the second information, the fifth power and the sixth power of each first beam, and the third power and the fourth power of the corresponding second beam.

[0077] Exemplarily, the second node can determine the fifth power of the received beam in the first polarization direction, for example, the receiving power P || in the horizontal polarization direction, and can determine the sixth power of the received beam in the second polarization direction, for example, the receiving power P ⊥ in the vertical polarization direction, by receiving the corresponding reflected first beam through the second beam, so as to obtain the channel gain of the corresponding first beam in the first polarization direction, for example, the channel gain H || = P || / (P T|| P R|| ) in the horizontal polarization direction, and the channel gain of the corresponding first beam in the second polarization direction, for example, the channel gain H ⊥ = P ⊥ / (P T⊥ P R⊥ ).

[0078] In some embodiments, the channel polarization information can include at least one of: channel gains corresponding to a first polarization direction and channel gains corresponding to a second polarization direction for the first beams; and a ratio of the channel gain corresponding to the first polarization direction to the channel gain corresponding to the second polarization direction for the first beams. For example, the first information can include channel gains H || corresponding to a horizontal polarization direction and channel gains H ⊥ corresponding to a vertical polarization direction for each first beam, and / or a ratio H || / H ⊥ of the channel gain corresponding to the horizontal polarization direction to the channel gain corresponding to the vertical polarization direction for each first beam.

[0079] The communication scheme of the embodiments of the present application will be described in detail below in combination with specific application scenarios.

[0080] This example takes the cooperative sensing of node A and node B as an example. After the sensing service is triggered, the upper layer network specifies node A and node B to form a sensing cooperative cluster, obtains the sensing parameters of the service requirement and issues them to node A and node B. The sensing parameters of the service requirement are, for example, an angle. In this example, the sensing area range of the service requirement is the communication coverage area of node A. The upper layer network can specify node A as a transmitting node (i.e., a first node) and simultaneously request node B to be a receiving node (i.e., a second node). After receiving the sensing service scheduling request, node B performs clock synchronization and carrier synchronization with node A. Figure 5 An exemplary flowchart of the communication method of the embodiments of the present application applied to cooperative sensing is shown in FIG. 1, which can include the following steps. Figure 5

[0081] Step 301: The first node transmits each first beam according to a first power corresponding to a first polarization direction and a second power corresponding to a second polarization direction for each first beam. For example, node A uses reference signals with reference signal numbers {CSI-RS1, CSI-RS2, CSI-RS3, CSI-RS4} to transmit sensing beams (i.e., first beams) to scan a sensing area. For each sensing beam, two polarization antennas can be used to transmit two streams of mutually orthogonal independent signals with the same polarization power P T|| = 0.5P T , P T⊥ = 0.5P T , where P T is the total transmission power, P T|| represents the transmission power corresponding to the horizontal polarization direction, and P T⊥ represents the transmission power corresponding to the vertical polarization direction. It should be noted that the directions of the sensing beams transmitted by the two polarization directions are the same in this example. ​

[0082] Step 302, the first node sends second information to the second node, the second information including first power and second power corresponding to each first beam. In this example, node A can send the transmit power P T|| and the transmit power P T⊥ of the horizontal polarization direction corresponding to each sensing beam to node B.

[0083] Step 303, the second node obtains fifth power and sixth power corresponding to each first beam; the fifth power is the received power of the first beam in the first polarization direction through the corresponding second beam, and the sixth power is the received power of the first beam in the second polarization direction through the corresponding second beam; according to the second information, the fifth power and the sixth power of each first beam, and the third power and the fourth power of the corresponding second beam, the first information is determined.

[0084] In this example, node B can use two polarized antennas to send an omnidirectional beam (i.e. the second beam) to receive the signal reflected by the sensing target, and the power corresponding to the two polarization directions of the omnidirectional beam is the same, i.e. the power corresponding to the horizontal polarization direction is P R|| = 0.5P R , and the power corresponding to the vertical polarization direction is P R⊥ = 0.5P R , wherein P R is the total power of the received beam transmitted by node B. Further, node B can perform background noise and clutter elimination on the received signal, extract the reference signal number covering the sensing target, refer to Figure 2 , for example {target 1: CSI-RS2, target 2: CSI-RS4}, the angle measurement result {target 1: 20°, target 2: -15°} and the corresponding channel polarization gain {CSI-RS2: H || = 1.0 & H ⊥ = 0.4, CSI-RS4: H || = 0.2 & H ⊥ = 0.8}.

[0085] Step 304, the second node sends the first information to the first node, the first information including the channel polarization information corresponding to each of one or more first beams transmitted by the first node. For example, node B can send to node A.

[0086] Step 305: The first node adjusts the first power and the second power of each first beam according to the first information. In this example, node A can allocate power to the two polarization direction beams of each reference signal covering the sensing target according to the information fed back by node B. For example, for the reference signal CSI-RS2, Power allocation is performed on the beams in the two polarization directions. For the reference signal CSI-RS4, the power allocation can be performed as follows: Power is allocated to the beams in the two polarization directions, wherein the beams in the two receiving angle directions corresponding to the reference signal CSI-RS2 and the reference signal CSI-RS4 can be sent simultaneously or in a time-division manner.

[0087] Step 306: The first node retransmits each first beam based on the adjusted first power and the adjusted second power. In this example, node A sends the newly configured reference signal beam, and node B retransmits the receive beam to receive the echo beam after it is reflected by the target. After removing background noise and clutter from the signal, the sensing parameters and channel polarization gain are updated.

[0088] Therefore, the above steps 303 to 306 can be repeated until the perception service meets the termination conditions and the perception is ended. The termination conditions corresponding to the perception service may include: cancellation of service demand, service exceeding expected time, node resource saturation, completion of perception service, etc.

[0089] Figure 6 Schematic diagram of the structure of the communication device according to an embodiment of the present invention Figure One ,like Figure 6 As shown, the communication device 400 includes a first communication unit 401, which is used to receive first information sent by the second node, where the first information includes channel polarization information corresponding to one or more first beams transmitted by the first node; wherein each first beam has two polarization directions, and the channel polarization information is used to adjust the transmission power of the corresponding first beam in the two polarization directions respectively; the one or more first beams are received by the second node after being reflected by the sensing target.

[0090] In an optional embodiment of the present invention, the communication device 400 further includes a first transmitting unit, configured to transmit each first beam according to a first power corresponding to the first polarization direction and a second power corresponding to the second polarization direction.

[0091] In an optional embodiment of the present invention, the first communication unit 401 is further configured to send second information to the second node, where the second information includes the first power and the second power corresponding to each first beam.

[0092] In an optional embodiment of the present application, the communication apparatus 400 further comprises a first processing unit configured to adjust the first power and the second power of each first beam according to the first information.

[0093] In an optional embodiment of the present application, the first processing unit is configured to determine a first ratio according to the channel polarization information corresponding to each first beam, the first ratio representing a ratio of a channel gain corresponding to the first polarization direction to a channel gain corresponding to the second polarization direction; and determine the adjusted first power and the adjusted second power according to the total transmission power of each first beam and the first ratio.

[0094] In an optional embodiment of the present application, the first transmitting unit is configured to retransmit each first beam according to the adjusted first power and the adjusted second power.

[0095] In an optional embodiment of the present application, the channel polarization information comprises at least one of: a channel gain corresponding to the first polarization direction and a channel gain corresponding to the second polarization direction of each first beam; and a ratio of a channel gain corresponding to the first polarization direction to a channel gain corresponding to the second polarization direction of each first beam.

[0096] In an optional embodiment of the present application, the first beam comprises at least one of: SSB, CSI-RS, DMRS, and PRS.

[0097] In the embodiments of the present application, the first processing unit in the communication apparatus 400 can be implemented by a central processing unit (CPU), a digital signal processor (DSP), a microcontroller unit (MCU), or a field-programmable gate array (FPGA) in the first node in actual application; and the first communication unit 401 in the communication apparatus 400 can be implemented by a communication module (including a basic communication suite, an operating system, a communication module, a standardized interface, and a protocol) and a transceiving antenna in actual application.

[0098] The embodiments of the present application further provide a communication apparatus. Figure 7 The composition structure of the communication apparatus in the embodiments of the present application is shown in FIG. 1. Figure Two As shown in FIG. 1, the communication apparatus 400 comprises a first communication unit 401, a first processing unit 402, and a first transmitting unit 403. Figure 7As shown, the communication apparatus 500 comprises a second communication unit 501 configured to send first information to a first node, the first information comprising channel polarization information corresponding to one or more first beams transmitted by the first node, wherein each first beam has two polarization directions, and the channel polarization information is used by the first node to adjust the transmission power of the corresponding first beam in the two polarization directions respectively, and the one or more first beams are reflected by a target and received by a second node.

[0099] In an optional embodiment of the present application, the second communication unit 501 is further configured to receive second information sent by the first node, the second information comprising first power and second power corresponding to each first beam transmitted by the first node, wherein the first power is the transmission power of the corresponding first beam in a first polarization direction, and the second power is the transmission power of the corresponding first beam in a second polarization direction.

[0100] In an optional embodiment of the present application, the communication apparatus 500 further comprises a second transmission unit configured to transmit each second beam according to third power corresponding to a first polarization direction and fourth power corresponding to a second polarization direction, wherein the second beam is used to receive the first beam reflected by a target.

[0101] In an optional embodiment of the present application, the communication apparatus 500 further comprises a second processing unit configured to obtain fifth power and sixth power corresponding to each first beam, wherein the fifth power is the reception power of the first beam in the first polarization direction received by the corresponding second beam, and the sixth power is the reception power of the first beam in the second polarization direction received by the corresponding second beam, and the first information is determined according to the second information, the fifth power and the sixth power of each first beam, and the third power and the fourth power of the corresponding second beam.

[0102] In an optional embodiment of the present application, the channel polarization information comprises at least one of the following: channel gain corresponding to a first polarization direction and channel gain corresponding to a second polarization direction of the first beam; and a ratio of the channel gain corresponding to the first polarization direction to the channel gain corresponding to the second polarization direction of the first beam.

[0103] In an optional embodiment of the present application, the first beam comprises at least one of the following: SSB, CSI-RS, DMRS, and PRS.

[0104] In the embodiment of the present application, the second processing unit in the communication device 500 can be implemented by a CPU, a DSP, a MCU or a FPGA in the second node in actual application; and the second communication unit 501 in the communication device 500 can be implemented by a communication module (including a basic communication suite, an operating system, a communication module, a standardized interface and a protocol, etc.) and a transceiving antenna in actual application.

[0105] It should be noted that the communication device provided by the above embodiment is only taken as an example for the division of the above program modules when performing communication, and in actual application, the above processing can be completed by different program modules according to needs, that is, the internal structure of the device is divided into different program modules to complete all or part of the above-described processing. In addition, the communication device and the communication method provided by the above embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be described here.

[0106] The embodiment of the present application further provides a communication device. Figure 8 The structure diagram of the communication device of the embodiment of the present application is shown, and the communication device 600 can be the first node or the second node in the foregoing embodiment. Figure 8 The communication device 600 shown includes at least one processor 601, a memory 602 and at least one network interface 603. Each component in the communication device 600 is coupled together through a bus system 604. It can be understood that the bus system 604 is used to realize the connection communication between the components. The bus system 604 includes a data bus, a power supply bus, a control bus and a state signal bus in addition. However, in order to clearly illustrate, all kinds of buses are marked as the bus system 604 in the figure. Figure 8 The communication device 600 further includes a communication device 605, a communication device 606 and a communication device 607.

[0107] It can be appreciated that the memory 602 can be a volatile memory or a nonvolatile memory, and can also include both volatile and nonvolatile memory. Among them, the nonvolatile memory can be a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a ferromagnetic random access memory (FRAM), a Flash Memory, a magnetic surface memory, an optical disc, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a Random Access Memory (RAM) used as an external cache. By way of example but not limitation, many forms of RAM can be used, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), 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), SyncLink Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM).The memory 602 described in the embodiments of the present application is intended to include, but is not limited to, these and any other suitable type of memory.

[0108] The memory 602 in the embodiments of the present application is used to store various types of data to support the operation of the communication device 600. Examples of these data include: any computer programs used to operate on the communication device 600, such as programs of the communication method of the embodiments of the present application, etc.

[0109] The method disclosed in the embodiments of the present application can be applied in the processor 601 or implemented by the processor 601. The processor 601 can be an integrated circuit chip having a processing capability of signals. In the implementation process, each step of the above method can be completed by the integrated logic circuit of hardware in the processor 601 or the instructions in the form of software. The processor 601 described above can be a general processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The processor 601 can implement or execute the disclosed methods, steps and logic block diagrams in the embodiments of the present application. The general processor can be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiments of the present application, the hardware decoding processor can be directly embodied to execute the above-mentioned method, or the combination of hardware and software modules in the decoding processor can be executed. The software module can be located in the storage medium, which is located in the memory 602. The processor 601 reads the information in the memory 602 and combines the hardware to complete the steps of the above-mentioned method.

[0110] In the exemplary embodiments, the communication device 600 can be implemented by one or more application specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), FPGAs, general-purpose processors, controllers, MCUs, microprocessors (Microprocessors), or other electronic elements, for executing the above-mentioned method.

[0111] In the example embodiment, the embodiment of the present application further provides a computer readable storage medium, such as the memory 602 including a computer program executable by the processor 601 of the communication device 600 to complete the steps of the foregoing method. The computer readable storage medium can be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disc, or CD-ROM; or various devices including one or any combination of the above memories, such as mobile phones, computers, tablet devices, personal digital assistants, and the like.

[0112] In the example embodiment, the embodiment of the present application further provides a computer program product including a computer program executable by the processor 601 of the communication device 600 to complete the steps of any of the foregoing methods.

[0113] The methods disclosed in the several method embodiments provided by the present application can be combined arbitrarily without conflict to obtain new method embodiments.

[0114] The features disclosed in the several product embodiments provided by the present application can be combined arbitrarily without conflict to obtain new product embodiments.

[0115] The features disclosed in the several method or device embodiments provided by the present application can be combined arbitrarily without conflict to obtain new method embodiments or device embodiments.

[0116] In the several embodiments provided by the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the various components shown or discussed can be indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0117] The units described above as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e. can be located in one place or distributed on multiple network units; some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0118] In addition, each function unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be a single unit, or two or more units can be integrated in one unit; the integrated unit can be realized in the form of hardware or in the form of hardware plus software function unit.

[0119] Those skilled in the art can understand that all or part of the steps of the above-mentioned method embodiments can be completed by program instruction related hardware, and the foregoing program can be stored in a computer readable storage medium, and the program executes the steps of the above-mentioned method embodiments when executed; and the foregoing storage medium includes a mobile storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various storage medium capable of storing program codes.

[0120] Alternatively, the integrated unit of the present application can be stored in a computer readable storage medium if it is realized in the form of a software function module and sold or used as an independent product. Based on this understanding, the technical solutions of the embodiments of the present application can be embodied in the form of a software product, which is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in the embodiments of the present application. The foregoing storage medium includes a mobile storage device, a ROM, a RAM, a magnetic disk or an optical disk, and various storage medium capable of storing program codes.

[0121] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method characterized by comprising: The method comprises: The first node receives first information sent by the second node, the first information comprising channel polarization information corresponding to each of one or more first beams transmitted by the first node; wherein each first beam has two polarization directions, and the channel polarization information is used to adjust the transmission power of the corresponding first beam in the two polarization directions respectively; and the one or more first beams are reflected by a perceived target and received by the second node.

2. The method of claim 1, wherein, Before the first node receives the first information sent by the second node, the method further comprises: The first node transmits each first beam according to a first power corresponding to a first polarization direction and a second power corresponding to a second polarization direction of the first beam.

3. The method of claim 2, wherein, The method further comprises: The first node sends second information to the second node, the second information comprising the first power and the second power corresponding to each first beam.

4. The method of claim 2, wherein, The method further comprises: The first node adjusts the first power and the second power of each first beam according to the first information.

5. The method of claim 4, wherein, The first node adjusts the first power and the second power of each first beam according to the first information, comprising: The first node determines a first ratio according to the channel polarization information corresponding to each first beam, the first ratio representing the ratio of the channel gain corresponding to the first polarization direction to the channel gain corresponding to the second polarization direction of the first beam; According to the total transmission power of each first beam and the first ratio, the adjusted first power and the adjusted second power are determined.

6. The method of claim 5, wherein, The method further comprises: The first node retransmits each first beam according to the adjusted first power and the adjusted second power.

7. The method according to any one of claims 1 to 6, characterized in that, The channel polarization information comprises at least one of the following: The channel gain corresponding to the first polarization direction and the channel gain corresponding to the second polarization direction of the first beam; The ratio of the channel gain corresponding to the first polarization direction to the channel gain corresponding to the second polarization direction of the first beam.

8. The method according to any one of claims 1 to 6, characterized in that, The first beam comprises at least one of the following: a synchronization signal block (SSB), a channel state information reference signal (CSI-RS), a demodulation reference signal (DMRS), and a positioning reference signal (PRS).

9. A communication method characterized by comprising: The method comprises: The second node sends first information to the first node, the first information comprising channel polarization information corresponding to each of one or more first beams transmitted by the first node; wherein each first beam has two polarization directions, and the channel polarization information is used by the first node to adjust the transmission power of the corresponding first beam in the two polarization directions respectively; and the one or more first beams are reflected by a perceived target and received by the second node.

10. The method of claim 9, wherein, Before the second node sends the first information to the first node, the method further comprises: The second node receives second information sent by the first node, the second information comprising the first power and the second power corresponding to each first beam transmitted by the first node; the first power is the transmission power of the corresponding first beam in the first polarization direction, and the second power is the transmission power of the corresponding first beam in the second polarization direction.

11. The method of claim 10, wherein, The method further comprises: The second node transmits each second beam according to a third power corresponding to a first polarization direction and a fourth power corresponding to a second polarization direction of the second beam, the second beam being used to receive the first beam reflected by the perceived target.

12. The method of claim 11, wherein, The method further comprises: The second node obtains a fifth power and a sixth power corresponding to each first beam; the fifth power is a reception power of the first beam in a first polarization direction received through the corresponding second beam, and the sixth power is a reception power of the first beam in a second polarization direction received through the corresponding second beam; According to the second information, the fifth power and the sixth power of each first beam, and the third power and the fourth power of the corresponding second beam, the first information is determined.

13. The method according to any one of claims 9 to 12, characterized in that, The channel polarization information at least includes at least one of: The first beam corresponds to a channel gain in a first polarization direction and a channel gain in a second polarization direction; The first beam corresponds to a ratio of a channel gain in the first polarization direction to a channel gain in the second polarization direction.

14. The method according to any one of claims 9 to 12, characterized in that, The first beam at least includes at least one of: SSB, CSI-RS, DMRS, PRS.

15. A communications device, characterized by The device comprises a first communication unit configured to receive first information transmitted by a second node, the first information comprising channel polarization information corresponding to each of one or more first beams transmitted by a first node; wherein each first beam has two polarization directions, and the channel polarization information is used to adjust the transmission power of the corresponding first beam in the two polarization directions respectively; and the one or more first beams are received by the second node after being reflected by a perceived target.

16. A communications device, characterized by The device comprises a second communication unit configured to transmit first information to a first node, the first information comprising channel polarization information corresponding to each of one or more first beams transmitted by the first node; wherein each first beam has two polarization directions, and the channel polarization information is used to adjust the transmission power of the corresponding first beam in the two polarization directions respectively; and the one or more first beams are received by the second node after being reflected by a perceived target.

17. A computer readable storage medium having stored thereon a computer program, characterized in that, The program is executed by the processor to implement the steps of the method of any one of claims 1 to 8; or the program is executed by the processor to implement the steps of the method of any one of claims 9 to 14.

18. A computer program product comprising a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the method of any one of claims 1 to 8; or the computer program is executed by the processor to implement the steps of the method of any one of claims 9 to 14.

19. A communication device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein, The processor executes the program to implement the steps of the method of any one of claims 1 to 8; or the processor executes the program to implement the steps of the method of any one of claims 9 to 14.

Images