Communication method and device, storage medium and program product

Abstract

The embodiment of the invention provides a communication method and device, a storage medium and a program product, relates to the technical field of communication, and can synchronize the change of a communication environment between nodes and improve the communication quality. The method is applied to a first node, and comprises the following steps: acquiring a shielding condition of a direct link between the first node and a second node; and based on the shielding condition, using the target beam to communicate with the second node.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and particularly relates to a communication method, device, storage medium and program product. BACKGROUND

[0002] In recent years, with the development of communication technology, the service interaction between communication nodes (such as base stations, terminals, etc.) is more and more frequent, and the requirements for the communication quality (such as signal-to-noise ratio, coverage range, etc.) of the service interaction are also higher and higher.

[0003] However, with the movement of the terminal, the communication environment between the terminal and the base station also changes. Therefore, how to synchronize the change of the communication environment between the nodes and improve the communication quality has become a technical problem to be solved. SUMMARY

[0004] The embodiments of the present disclosure provide a communication method, device, storage medium and program product, which can synchronize the change of the communication environment between the nodes and improve the communication quality.

[0005] In one aspect, a communication method is provided, which is applied to a first node and includes: obtaining an occlusion condition of a direct link between the first node and a second node; and performing communication with the second node using a target beam based on the occlusion condition.

[0006] In another aspect, a communication method is provided, which is applied to a second node and includes: receiving a channel state information reference signal (CSI-RS) sent by a first node; and sending channel state information of a direct link to the first node according to the CSI-RS, the channel state information being used to determine an occlusion condition of the direct link, and the channel state information including a channel measurement result of the CSI-RS.

[0007] In another aspect, a communication device is provided, which is applied to a first node and includes an obtaining module and a processing module.

[0008] The obtaining module is configured to obtain an occlusion condition of a direct link between the first node and a second node; and the processing module is configured to perform communication with the second node using a target beam based on the occlusion condition.

[0009] In another aspect, a communication device is provided, which is applied to a second node and includes a receiving module and a sending module.

[0010] The receiving module is configured to receive a channel state information reference signal (CSI-RS) sent by a first node; and the sending module is configured to send channel state information of a direct link to the first node according to the CSI-RS, the channel state information being used to determine an occlusion condition of the direct link, and the channel state information including a channel measurement result of the CSI-RS.

[0011] In yet another aspect, a communication apparatus is provided, including a memory and a processor. The memory and the processor are coupled. The memory is configured to store a computer program. The processor implements the communication method of any of the above embodiments when executing the computer program.

[0012] In yet another aspect, a computer readable storage medium is provided, and the computer readable storage medium stores computer program instructions. The computer program instructions are executed by a processor to implement the communication method of any of the above embodiments.

[0013] In yet another aspect, a computer program product is provided, and the computer program product includes computer program instructions. The computer program instructions are executed to implement the communication method of any of the above embodiments.

[0014] The embodiments of the present disclosure disclose that the first node can select a suitable beam based on the occlusion of the direct link between the first node and the second node to ensure normal communication between the first node and the second node, thereby synchronizing the change of the communication environment between the nodes and improving the communication quality. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present disclosure, the following will briefly introduce the drawings needed to be used in some embodiments of the present disclosure. Obviously, the drawings described in the following are only some of the drawings of the present disclosure, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0016] Figure 1 A propagation example schematic diagram of a self-healing beam provided by some embodiments of the present disclosure;

[0017] Figure 2 A propagation example schematic diagram of a Gauss beam provided by some embodiments of the present disclosure;

[0018] Figure 3 A propagation example schematic diagram of a Bessel beam provided by some embodiments of the present disclosure;

[0019] Figure 4 A communication system schematic diagram provided by some embodiments of the present disclosure;

[0020] Figure 5 A flowchart schematic diagram of a communication method provided by some embodiments of the present disclosure;

[0021] Figure 6 An internal structure schematic diagram of a preset neural network model provided by some embodiments of the present disclosure;

[0022] Figure 7 Another internal structure schematic diagram of a preset neural network model provided by some embodiments of the present disclosure;

[0023] Figure 8 Another flowchart of a communication method provided by some embodiments of the present disclosure

[0024] Figure 9 Another flowchart of a communication method provided by some embodiments of the present disclosure

[0025] Figure 10 Structure diagram of a communication device provided by some embodiments of the present disclosure Figure 1 ;

[0026] Figure 11 Structure diagram of a communication device provided by some embodiments of the present disclosure Figure 2 ;

[0027] Figure 12 Structure diagram of a communication device provided by some embodiments of the present disclosure Figure 3 . DETAILED DESCRIPTION

[0028] The technical solutions in the present disclosure will be described clearly and completely below with reference to the drawings in the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present disclosure, but not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present disclosure.

[0029] It should be noted that in the present disclosure, the words “exemplary” or “for example” are used to mean serving as an example, instance, or illustration. Any embodiment or design scheme described as “exemplary” or “for example” in the present disclosure should not be interpreted as being more preferred or advantageous than other embodiments or design schemes. In fact, the use of the words “exemplary” or “for example” is intended to present related concepts in a specific way.

[0030] Hereinafter, the terms “first” and “second” are used only for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with “first” and “second” can explicitly or implicitly include one or more of the features.

[0031] In the description of the present disclosure, unless otherwise specified, “ / ” means “or”, for example, A / B can mean A or B. “And / or” in this document is only a description of the association between the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, “at least one” means one or more, and “multiple” means two or more.

[0032] In recent years, with the development of communication technology, the service interactions between communication nodes (such as base stations and terminals) have become more and more frequent, and the requirements for the communication quality (such as signal-to-noise ratio and coverage) of service interactions have also become higher and higher.

[0033] However, as the terminal moves, the communication environment between the terminal and the base station also changes.

[0034] Therefore, beam failure detection and recovery are crucial for ensuring high-quality wireless communication services in current wireless communication systems. In the current standard, beam failure detection and recovery are initiated and detected by the user equipment (UE), which notifies the base station to perform beam recovery by indicating the optimal candidate beam. This process effectively solves some beam failure and recovery problems, but it is insufficient in situations involving obstruction. Because the UE initiates the beam recovery process, its transmit power is lower than that of the base station. Therefore, situations may arise where the UE detects the optimal candidate beam, but the uplink cannot be detected by the base station. Thus, it is necessary to utilize the base station to initiate downlink beam recovery to enhance the network's beam recovery capability.

[0035] However, during communication between the base station and the target user, the direct link is often blocked, causing a decrease in the target user's communication throughput. To improve the communication quality and increase the communication throughput of the target user, the base station can switch the beam used for communication with the target user to a special self-healing beam (i.e., a self-healing beam).

[0036] It should be noted that a self-healing beam is a special type of beam, typically possessing both diffraction-free and self-healing properties. The self-healing property refers to the ability of the beam to maintain its main lobe waveform even when blocked by an obstacle of a certain size, behind which the obstacle lies the beam.

[0037] For example, such as Figure 1 The diagram illustrates a propagation example of a self-healing beam. When the direct link between the base station and the user equipment (UE) is blocked, the self-healing beam transmitted by the base station can still maintain its main lobe waveform and be transmitted to the UE even after being blocked by the obstacle, thus achieving special beam recovery service. In other words, when the direct link is blocked, the base station can use a special beam (i.e., a self-healing beam) to communicate with the UE.

[0038] Therefore, self-healing beams can be used in communications to restore the communication link between the base station and the UE after the line of sight (LoS) is blocked. Common self-healing beams include Bessel beams (an idealized beam that theoretically does not spread or diverge), Gauss beams (a type of laser beam), and Airy beams (a beam that maintains a certain focus intensity behind the center focal point).

[0039] As shown in the examples of FIGS. 1 and 2, the Gauss beam and the Bessel beam can both maintain the focus on the propagation path after passing through two obstacles. Figure 2 and Figure 3 As shown in the examples of FIGS. 1 and 2, the Gauss beam and the Bessel beam can both maintain the focus on the propagation path after passing through two obstacles.

[0040] However, in the above technical solutions, the self-healing beam can solve the problem of the direct link between nodes being blocked, but as the communication environment changes, the direct link between nodes may recover to the unblocked state, at which time the use of the self-healing beam will increase the communication cost between nodes. That is, for the selection switching between the normal beam (such as the discrete fourier transform (DFT) beam) and the self-healing beam, it may not match the communication environment between nodes.

[0041] Therefore, how to synchronize the change of the communication environment between nodes and improve the communication quality has become a technical problem to be solved.

[0042] Based on this, to solve the above technical problems, the embodiments of the present disclosure provide a communication method applied to the scene of beam switching management. The first node can select a suitable beam based on the blocking situation of the direct link between the first node and the second node to ensure normal communication with the second node, thereby synchronizing the change of the communication environment between nodes and improving the communication quality.

[0043] That is, the embodiments of the present disclosure propose a feedback method for indicating the base station to switch from the DFT beam to the self-healing beam, or to switch from the self-healing beam to the DFT beam.

[0044] The network architecture of the mobile communication network (including but not limited to 2G, 3G, 4G, 5G and future mobile communication network (such as 5th generation mobile communication technology Advanced (5G-A), 6th generation mobile communication technology (6G))) in the embodiments of the present disclosure can at least include a first communication node and a second communication node. It should be understood that in the present example, the first communication node can be a terminal side device (including but not limited to a terminal), and the second communication node can be a network (NW) side device (including but not limited to a base station). In device-to-device communication, both the first communication node and the second communication node can be a base station or a terminal. The first communication node and the second communication node can be referred to as the first node and the second node, respectively.

[0045] As shown in an example, Figure 4 As shown in an example,

[0046] The first node 401 can determine the blocking condition of the direct link between the first node 401 and the second node 402 based on the sensing measurement between the first node 401 and the second node 402 and / or the channel state reported by the second node 402, and select a self-healing beam or a non-self-healing beam (i.e., a normal beam) to communicate with the second node 402 based on the blocking condition.

[0047] Optionally, the first node 401 can be a base station, or other network entities (such as a terminal, a UE, a relay device, a small station) with a beam management function.

[0048] It should be noted that the second node 402 can be a mobile device or a terminal device (such as a terminal).

[0049] A base station (BS) can be a base station in LTE, Long Term Evolution Advanced (LTEA) or an evolved Node B (eNB or eNodeB), a base station device (gNB) in a 5G network, or a base station in a future communication system. Base stations can include various macro base stations, micro base stations, femtocell base stations, wireless remote extensions, reconfigurable intelligent surfaces (RISS), routers, relay stations, transmission and reception points (TRPs), receivers, access points, wireless fidelity (Wi-Fi) devices, and other network-side equipment. A base station can sometimes also be referred to as a reader / writer used for communication with terminals.

[0050] A terminal can be a device with wireless transceiver capabilities. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, virtual reality (VR) terminals, augmented reality (AR) terminals, wireless terminals in industrial control, wireless terminals in self-driving vehicles, wireless terminals in remote medical care, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, and so on. The embodiments of this disclosure do not limit the application scenarios. A terminal may also be referred to as a user, user equipment (UE), A-IoT device, access terminal, UE unit, UE station, mobile station, mobile station, remote station, transmitter, remote terminal, mobile device, UE terminal, wireless communication device, UE agent, or UE device, etc., and the embodiments of this disclosure do not limit this to these terms.

[0051] It should be noted that, Figure 4 This is just an example framework diagram. Figure 4 The number of devices included and the names of each device are unlimited, except for... Figure 4 In addition to the devices shown, the communication system may also include other devices, such as core network equipment.

[0052] The application scenarios of the embodiments disclosed herein are not limited. The system architecture and business scenarios described in the embodiments of this disclosure are for the purpose of more clearly illustrating the technical solutions of the embodiments of this disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of this disclosure. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of this disclosure are also applicable to similar technical problems.

[0053] Figure 5 A flowchart of a communication method is shown, such as... Figure 5 As shown, this communication method is applied to the first node and includes:

[0054] S501, Obtain the occlusion status of the direct link between the first node and the second node.

[0055] It should be noted that as the communication environment changes, nodes may be blocked by various obstacles, which can cause the direct link between nodes to be obstructed.

[0056] As one possible approach, for the obstruction of direct links between nodes, trajectory determination can be performed through sensing measurements. Alternatively, trajectory determination can be performed by referencing channel conditions. Another option is to combine sensing measurements with channel conditions for a comprehensive trajectory determination.

[0057] The following describes, with reference to specific embodiments, the methods for determining the occlusion of direct links between nodes (method 1, method 2, and method 3).

[0058] Method 1, taking perception measurement as an example, allows the first node to acquire its own perception measurement information and, based on this information, obtain the state information of the second node and the state information of obstacles between them. Then, the first node can determine the movement trajectories of the second node and the obstacles based on these trajectories, and determine the occlusion status of the direct-fire link based on these trajectories.

[0059] The sensing measurement information may include the state information of the sensed object within the sensing range of the first node, and the state information may include at least one of the following: position information, velocity information, and size information.

[0060] Method 2, taking the reference channel state as an example, allows the first node to obtain the channel state information of the direct link, and based on this, to obtain the state information of the second node and the state information of the obstacles between the first and second nodes. Then, the first node can determine the movement trajectories of the second node and the obstacles based on these trajectories, and determine the occlusion status of the direct link based on these trajectories.

[0061] Method 3, taking the combination of sensing measurement and channel state as an example, allows the first node to acquire the channel state information of the direct link and its own sensing measurement information. Based on these, the first node acquires the state information of the second node and the state information of obstacles between them. Then, the first node can determine the movement trajectories of the second node and obstacles based on these trajectories, and determine the occlusion status of the direct link based on these trajectories.

[0062] The first node can first determine the state information of the second node and the obstacle based on the channel state information, then correct the state information of the second node and the obstacle based on the sensing measurement information, and then determine the motion trajectory of the second node and the obstacle based on the corrected state information of the second node and the obstacle, so as to determine the occlusion of the direct link.

[0063] Similarly, the first node can first determine the state information of the second node and the obstacle based on the sensing measurement information, then correct the state information of the second node and the obstacle based on the channel state information, and then determine the motion trajectory of the second node and the obstacle based on the corrected state information of the second node and the obstacle, so as to determine the occlusion of the direct link.

[0064] Understandably, using multiple trajectory determination methods to judge the occlusion status of direct-light links can adapt to different scenario requirements and improve the accuracy of direct-light link occlusion judgment.

[0065] It should be noted that, in the embodiments of this disclosure, the motion trajectory determined by the first node in the above-mentioned methods one, two and three methods may include the future positional change trend of the second node and the obstacle, so as to predict in advance the occlusion of the direct link between the first node and the second node, that is, to determine whether there are / already exist obstacles in the channel that would block the direct link between the nodes.

[0066] Optionally, the first node can determine the obstruction status of the direct link between nodes using methods other than trajectory judgment. The first node can obtain the channel state information of the direct link and, based on this information, obtain the reference signal received power (RSRP) information of the corresponding channel. Then, the first node can determine the obstruction status of the direct link based on the RSRP information.

[0067] In the process of the first node determining the occlusion status of the direct link based on the RSRP information, the first node can determine the occlusion status of the direct link based on the RSRP change trend and absolute value.

[0068] It should be noted that, in the embodiments of this disclosure, the channel state information may include the channel measurement results of the channel state information-reference signal (CSI-RS) sent by the second node to the first node, or the channel state information may include the channel measurement results of the sounding reference signal (SRS) sent by the first node to the second node.

[0069] The channel measurement results may include at least one of the following (1)-(11):

[0070] (1) Channel matrix;

[0071] (2) The conjugate transpose of the channel matrix;

[0072] (3) The product of the channel matrix and the conjugate transpose of the channel matrix;

[0073] (4) The product of the conjugate transpose of the channel matrix and the channel matrix;

[0074] (5) All singular values ​​of the channel matrix and their corresponding singular vectors;

[0075] (6) The first N singular values ​​of the channel matrix arranged in descending order and their corresponding singular vectors;

[0076] (7) All singular vectors of the channel matrix;

[0077] (8) The singular vectors corresponding to the first N singular values ​​of the channel matrix arranged in descending order;

[0078] (9) All singular values ​​of the channel matrix;

[0079] (10) The first N singular values ​​of the channel matrix arranged in descending order;

[0080] (11) The sum of squares of all singular values ​​of the channel matrix.

[0081] In other words, by analyzing certain characteristics or trends in the channel matrix, the obstruction of direct links between nodes can be determined.

[0082] S502. Based on the obstruction situation, use the target beam to communicate with the second node.

[0083] In this configuration, the first node can communicate with the second node using a self-healing beam even when the direct beam link is blocked; or...

[0084] The first node can communicate with the second node using a non-self-healing beam, provided that the direct beam link is not blocked.

[0085] In other words, the base station (i.e., the first node) can add the self-healing beam to the candidate beam list after determining that the current link will be or has been significantly blocked, and perform beam management / beam switching / beam recovery in accordance with the current protocol.

[0086] As one possible implementation, when the first node determines that the direct link is blocked, the first node can obtain a first distance value between the first node and the second node, a second distance value between the first node and the obstacle, and a third distance value between the second node and the obstacle. Based on the first, second, and third distance values, the first node determines a target self-healing beam from multiple preset self-healing beams. Then, the first node can use the target self-healing beam to communicate with the second node.

[0087] In other words, when using self-healing beams, a suitable self-healing beam can be matched from multiple self-healing beams by considering the distance between reference nodes and the distance between obstacles between nodes and the two end nodes, so as to achieve communication transmission between nodes.

[0088] Understandably, the first node can select an appropriate beam based on whether the direct link between it and the second node is blocked, so as to ensure normal communication with the second node, thereby synchronizing the changes in the communication environment between the nodes and improving the communication quality.

[0089] In some embodiments, the channel state information may further include first indication information for indicating whether to use a self-healing beam, the first indication information being determined by the second node based on channel measurements from the CSI-RS transmitted by the first node. During the first node's management of the target beam's handover, the first node may use the target beam to communicate with the second node based on the first indication information in the channel state information.

[0090] In the case where the second node determines that the direct link is blocked based on the channel measurement results of the CSI-RS sent by the first node, the first indication information is used to indicate the use of the self-healing beam. Then, the first node can respond to the first indication information in the channel state information and use the self-healing beam to communicate with the second node.

[0091] Alternatively, if the second node determines that the direct link is not blocked based on the channel measurement results of the CSI-RS sent by the first node, and the first indication information is used to indicate that the self-healing beam is not used, then the first node can respond to the first indication information in the channel state information and use a non-self-healing beam to communicate with the second node.

[0092] In other words, the base station (i.e., the first node) and the UE (i.e., the second node) agree on an additional bit (the first indication information) after explicitly feeding back the channel matrix information (i.e., the channel state information) through the protocol. This bit is used to instruct the UE to determine whether it needs to be changed to a special beam.

[0093] It should be noted that the second node can know the location information of the first node in advance, and determine the obstruction status of the direct link based on the location information of the first node and the channel measurement results of the CSI-RS sent by the first node. The process of determining the obstruction status of the direct link can be referred to the above description of the first node's acquisition of the obstruction status of the direct link.

[0094] In other words, the UE (i.e., the second node) determines that the current link will experience or has already experienced significant obstruction. The UE reports the relevant information to the base station (i.e., the first node). After receiving the information, the base station adds the self-healing beam to the candidate beam list and performs beam management / beam switching / beam recovery according to the current protocol. In this way, by having the second node act as a proxy for the first node in determining the obstruction status of the direct link, the computational load on the first node can be reduced.

[0095] In some embodiments, during the process of the first node acquiring channel state information, the first node may receive channel state information sent by the second node. The channel state information is sent by the second node when it is determined by the second node that the direct link is blocked based on the channel measurement results of the CSI-RS sent by the first node.

[0096] In other words, when the second node determines that the direct link is blocked, it reports the channel status information to the first node so that the first node can review the blocking status of the direct link and manage the switching of the target beam.

[0097] Optionally, the first node may send a second indication message to the second node and receive channel state information sent by the second node in response to the second indication message. The second indication message is used to request the acquisition of channel measurement results for the CSI of the direct link.

[0098] It should be noted that the timing of the first node sending the second indication information to the second node may include any one of the following (1)-(6):

[0099] (1) Randomly send a second instruction message to the second node;

[0100] (2) Send a second instruction message to the second node based on a preset period;

[0101] (3) Send a second instruction message to the second node within a preset time period based on a preset cycle;

[0102] (4) In response to receiving a measurement request from the second node, send a second indication message to the second node;

[0103] (5) In response to receiving a measurement request from the second node, send a second indication message to the second node based on a preset period;

[0104] (6) In response to receiving a measurement request from the second node, send a second indication message to the second node within a preset time period based on a preset cycle.

[0105] In addition, the second indication information can be carried in the CSI-RS header sent by the first node to the second node, or the second indication information can be carried in the downlink control information (DCI) sent by the first node to the second node.

[0106] In the case of the CSI-RS header carrying second indication information, the request information for the local node to send the channel measurement results to the peer node can be carried together by the communication status information reference signal, so that the peer node can determine whether the link between the nodes is blocked based on the measurement results of the communication status information reference signal carrying the request information, and / or report the channel measurement results of the communication status information reference signal carrying the request information to the local node.

[0107] In other words, the base station (i.e., the first node) and the UE (i.e., the second node) agree through a protocol that the base station inserts a special CSI-RS (or DCI) into the CSI-RS (or DCI) it transmits during beam management. After the UE detects this CSI-RS (or DCI), it explicitly feeds back the channel measurement information of that signal. The insertion of the special CSI-RS (or DCI) can be in several ways: periodic, semi-persistent (triggered by the base station or UE), and aperiodic (triggered by the base station or UE).

[0108] For example, taking CSI-RS as an example, the notification method for a special CSI-RS can be:

[0109] (1) Base station trigger: The base station sends out control information (ExplictFeedbackCtr) (i.e., the second indication information) to the CSI-RS sequence header. The UE determines the feedback measurement method for the CSI-RS by detecting the control information.

[0110] (2) UE triggering: The measurement parameters reported by the UE contain control information. The base station determines whether to trigger a special CSI-RS and the resource location of the special CSI-RS preferred by the UE by detecting the control information.

[0111] It should be noted that the base station and UE can agree on the time-frequency domain resource location for explicit feedback (i.e., channel state information) through the protocol. This reporting can be achieved through the payload of the physical uplink control channel format x.

[0112] Optionally, if the base station and the UE are already in a special CSI-RS measurement process of periodic / semi-persistent / aperiodic, and the base station has received at least one measurement feedback result, then the explicit feedback of channel information can also be carried out in the following way:

[0113] The UE provides feedback on the difference or ratio between the current measurement and the previous measurement, according to the feedback method agreed upon by the base station and the UE.

[0114] Alternatively, feedback can be provided on the difference or ratio between this measurement and the first measurement.

[0115] It should be noted that the base station and UE agree on the precision of the explicit feedback channel information matrix through the protocol. The agreement can be made in the following ways:

[0116] (1) Define the feedback precision for all special CSI-RS, which is the number of bits occupied by each digit in the quantity to be fed back;

[0117] (2) The feedback precision of the first special CSI-RS and the feedback precision of all subsequent special CSI-RS are agreed upon. The number of bits occupied by each number in the feedback of the first special CSI-RS is more than the number of bits occupied by each number in the feedback of subsequent special CSI-RS.

[0118] (3) The feedback accuracy of each special CSI-RS is agreed upon, and the feedback accuracy of each special CSI-RS is different.

[0119] In summary, based on the explicit feedback beam management process between the base station and the UE, once a stable link has been established, the base station can periodically send CSI-RS and synchronization signal blocks (SSBs) for beam management. The UE periodically measures CSI-RS / SSBs to assess the link quality. Furthermore, if the communication link between the base station and the UE may be blocked by obstacles during communication, the self-healing beam will be switched to continue communication.

[0120] In some embodiments, after the first node and the second node communicate using a self-healing beam, the first node can determine the obstruction status of the direct link between the first node and the second node through the SRS reported by the second node. If the direct link is restored to be unobstructed, the first node can switch to a non-self-healing beam to communicate with the second node, thereby reducing communication costs.

[0121] For example, after the base station determines that the direct link is unobstructed, it can determine a set of candidate normal beams based on the most recent explicit feedback result of the UE's special CSI-RS. This beam set may not include self-healing beams. Next, the base station notifies the UE to end the special CSI-RS measurement feedback and instructs the UE to measure the RSRP of the candidate beam set and provide specified feedback information. Afterward, the UE measures the RSRP of the candidate beam set, selects an optimal beam, and sends its specified feedback information back to the base station. Based on the UE's feedback information, the base station switches to the optimal beam and establishes a connection with the UE.

[0122] Optionally, after the UE determines that the direct link is unobstructed, the UE feeds back the information to the base station. The base station can determine a set of candidate normal beams based on the most recent explicit feedback result of the UE's special CSI-RS. This beam set may not include self-healing beams. Next, the base station notifies the UE to end the special CSI-RS measurement feedback and instructs the UE to measure the RSRP of the candidate beam set and feed back the specified feedback information. Afterwards, the UE measures the RSRP of the candidate beam set, selects an optimal beam, and feeds back its specified feedback information to the base station. Based on the UE's feedback information, the base station switches to the optimal beam and establishes a connection with the UE.

[0123] In other words, the determination of the obstruction status of the direct link after communication using self-healing beams can be made by either the first node or the second node.

[0124] In some embodiments, to support adaptive self-healing beam switching, the base station (i.e., the first node) can also employ an online trained / inference neural network to determine whether the current link requires self-healing beam switching (i.e., to obtain the occlusion status of the direct link). The first node can obtain the channel state information of the direct link and determine the occlusion status of the direct link by inputting the channel state information into a trained preset neural network model.

[0125] For example, such as Figure 6 As shown, it illustrates the internal structure of a pre-defined neural network model, including an input layer, a neural network layer (or hidden layer), and an output layer.

[0126] It should be noted that the input data of this neural network (i.e., the preset neural network model) can come from the measurement results of CSI-RS or other reference signals (such as DCI). These reference signals constitute the artificial intelligence (AI) reference signal set, and the network architecture can adopt traditional neural networks, convolutional neural networks, or Transformers, etc.

[0127] Furthermore, in the embodiments of this application, the channel state information may include not only information related to the channel matrix (i.e., the channel measurement results shown in (1)-(11) above), but may also include at least one of the following: channel quality indicator (CQI), precoding matrix indicator (PMI), channel state information resource indicator (CRI), SSB resource indicator (RI), layer indicator (LI), rank indicator (RI), L1-RSRP, etc.

[0128] In other words, the input to the neural network can be at least one measurement result of the reference signal in the AI ​​reference signal set. Taking CSI-RS as an example, the measurement result can be: CQI, PMI, CRI, SSBRI, LI, RI, L1-RSRP, or explicit feedback parameters (i.e., the channel measurement results shown in (1)-(11) above). Alternatively, the input to the neural network can also be a time series of at least one measurement result of the reference signal in the AI ​​reference signal set, which is one of the measurement results listed above.

[0129] Furthermore, the output of this neural network is two real numbers x and y in the interval [0,1]. x represents the probability of needing to switch to the self-healing beam (i.e., the degree to which the direct link is blocked), and y represents the probability of needing to switch to the normal beam (i.e., the degree to which the direct link is not blocked).

[0130] As one possible implementation, the preset neural network model may include a first neural network model and multiple second neural network models, with the first neural network model being fully connected to the multiple second neural network models, and each second neural network model corresponding to a parameter in the channel state information.

[0131] In this way, during the process of the first node determining the occlusion status of the direct link by inputting channel state information into the trained preset neural network model, the first node can obtain multiple output results by inputting channel state information into multiple trained second neural network models, and determine the occlusion status of the direct link by inputting multiple output results into the trained first neural network model.

[0132] In other words, by using a multi-layer fully connected neural network structure, each parameter corresponds to an independent sub-neural network model. Then, a fully connected sub-neural network model processes the output results of the neural network models corresponding to all parameters, thereby obtaining the occlusion judgment result of the direct link between nodes.

[0133] For example, such as Figure 7 The diagram illustrates the internal structure of another pre-defined neural network model, including an input layer, hidden layers, a new input layer, a new hidden layer, and a new output layer. This network uses the output layers of several fully connected neural networks as new input layers. Based on these new input layers, the new hidden layers and the new output layer, a new fully connected neural network is formed, and the number of new hidden layers is at least zero. Furthermore, the diagram only illustrates the fully connected characteristics of the new input, new hidden, and new output layers using five edge examples; the connections of the remaining edges are not shown in the diagram.

[0134] It should be noted that a base station can also use the outputs of multiple neural networks with different input types described above as an input layer of a new neural network, such as... Figure 7 As shown, the new input layer consists of the outputs of N sub-fully connected neural networks (i.e., the second neural network model). Each sub-fully connected neural network accepts a measurement result or its time-domain sequence of the same or different reference signal in the AI ​​reference signal as input, and different sub-fully connected neural networks accept different measurement results.

[0135] Furthermore, the new neural network has at least 0 layers, and the output layer outputs two real numbers x and y in the interval [0,1]. x represents the probability of switching to the self-healing beam, and y represents the probability of switching to the normal beam. If a sub-fully connected neural network has no input parameters, then it outputs x = y = 0.

[0136] In other words, this disclosure proposes a self-healing beam switching and management method based on a neural network. The neural network accepts the measurement results of a set of reference signals as input and outputs the probability of using a special beam and the probability of using a normal beam, respectively.

[0137] This disclosure also provides a communication method applied to a second node, such as... Figure 8 As shown, the communication method may include:

[0138] S801, Receive the channel state information reference signal sent by the first node.

[0139] S802. Based on the channel state information reference signal, send the channel state information of the direct link to the first node.

[0140] Among them, channel state information is used to determine the obstruction status of the direct link, and the channel state information may include the channel measurement results of CSI-RS.

[0141] In one possible implementation, during the process of the second node sending the channel state information of the direct link to the first node based on the channel state information reference signal, the second node may send the channel state information of the direct link to the first node in response to receiving the second indication information from the first node.

[0142] It should be noted that the process of the second node receiving the second indication information from the first node can be referred to the description of the timing of the first node sending the second indication information carried in the CSI-RS header in the above embodiment, which will not be repeated here.

[0143] Optionally, during the process of the second node sending the channel state information of the direct link to the first node based on the channel state information reference signal, the second node may send the channel state information of the direct link to the first node based on the obstruction status of the direct link.

[0144] For the obstruction of direct links between nodes, trajectory determination can be performed by referencing channel conditions. Alternatively, a comprehensive trajectory determination can be made by combining sensing measurements with channel conditions. Another option is to directly determine obstruction by referencing the channel's RSRP (Responsive RSRP). Yet another option is to use a trained, pre-defined neural network model for obstruction determination.

[0145] The following describes, with reference to specific embodiments, the methods (method A, method B, method C and method D) by which the second node can send channel state information of the direct link to the first node based on the obstruction of the direct link.

[0146] Method A, taking the reference channel state as an example, allows the second node to acquire the channel measurement results from CSI-RS. Based on these results, the second node obtains its own state information, as well as the state information of the obstacle between the first and second nodes. Next, the second node can determine the movement trajectories of itself and the obstacle based on these trajectories, and determine the obstruction status of the direct link. Subsequently, the second node can send the channel state information of the direct link to the first node even if the direct link is obstructed.

[0147] Method B, taking the combination of sensing measurement and channel state as an example, allows the second node to acquire the channel measurement results from CSI-RS and the sensing measurement information from the first node. Based on these, the second node obtains its own state information, as well as the state information of obstacles between the first and second nodes. Next, the second node can determine the movement trajectories of itself and the obstacles based on these trajectories, and determine the obstruction status of the direct link. Subsequently, even if the direct link is obstructed, the second node can send the channel state information of the direct link to the first node.

[0148] Method C, taking the method of directly determining obstruction using the RSRP of the reference channel as an example, allows the second node to obtain the channel measurement results of CSI-RS and, based on these results, acquire the Reference Signal Received Power (RSRP) information for the channel corresponding to the direct link. Then, the second node can determine the obstruction status of the direct link based on the reference signal received power information and, if the direct link is obstructed, send the channel state information of the direct link to the first node.

[0149] Method C, taking the method of using a trained preset neural network model for occlusion judgment as an example, allows the second node to obtain the channel measurement results of CSI-RS and input them into the trained preset neural network model to determine the occlusion status of the direct link. Then, if the direct link is occluded, the second node can send the channel state information of the direct link to the first node.

[0150] It should be noted that the process of the second node using the trained preset neural network model to determine occlusion can be referred to the description of the first node using the trained preset neural network model to determine occlusion in the above embodiment, and will not be repeated here.

[0151] In some embodiments, such as Figure 9 As shown, it illustrates the interaction process between the first node and the second node in the communication method provided in this embodiment of the disclosure, including:

[0152] S901, The first node sends a channel state information reference signal to the second node.

[0153] S902, the second node receives the channel state information reference signal sent by the first node.

[0154] S903. The second node sends the channel state information of the direct link to the first node based on the channel state information reference signal.

[0155] S904. The first node receives the channel status information sent by the second node.

[0156] S905, The first node obtains the occlusion status of the direct link between the first node and the second node.

[0157] S906. The first node communicates with the second node using the target beam based on the obstruction situation.

[0158] The communication method provided in the embodiments of this disclosure will be described below with reference to specific examples.

[0159] For example, consider the process of switching from a normal beam to a self-healing beam.

[0160] After receiving at least two (or at least one) special CSI-RS measurement results from the UE, the base station uses these results to determine whether the current link will be / has already been significantly blocked.

[0161] It should be noted that there are several ways a base station can determine whether the current link will be or has already been blocked:

[0162] (1) The base station obtains the location information and / or speed information of obstacles and / or UEs in the channel through at least two special CSI-RS measurement results, and determines whether there are / already obstacles blocking the direct link in the channel based on the current location information and / or speed information of obstacles and / or UEs.

[0163] (2) The base station obtains the location information and / or speed information of obstacles and / or UEs in the channel by using at least two special CSI-RS measurement results and requesting the perception measurement results of other sensing devices on the coverage area of ​​the base station from the core network. Based on the current location information and / or speed information of obstacles and / or UEs, it determines whether there are / already exist obstacles in the channel that block the direct link.

[0164] (3) The base station obtains the corresponding channel RSRP information through at least two special CSI-RS measurement results, and judges whether there is / already an obstacle blocking the direct link in the channel based on the RSRP change trend and absolute size;

[0165] (4) The base station inputs the measurement results of at least two special CSI-RS measurements into a trained neural network. The neural network determines whether the direct link will be blocked. The base station determines whether there is / already an obstacle blocking the direct link in the channel based on the judgment result of the neural network.

[0166] Furthermore, after determining that the current link will experience or has already experienced significant obstruction, the base station will add the self-healing beam to the candidate beam list and perform beam management / beam switching / beam recovery in accordance with the methods agreed upon in the current protocol.

[0167] In addition, the UE can know the location information of the base station in advance, and the UE can determine that the current link will / has been blocked in the following ways:

[0168] (1) The UE measures at least two special CSI-RS measurement results, obtains the location information and / or speed information of obstacles in the channel, and determines whether there are / already exist obstacles blocking the direct link in the channel based on the current obstacle and / or UE location information and / or speed information;

[0169] (2) The UE measures at least two special CSI-RS measurement results and requests other sensing devices from the core network to measure the sensing results of the coverage area of ​​the serving base station, obtains the location information and / or speed information of obstacles in the channel, and determines whether there are / already exist obstacles blocking the direct link in the channel based on the current obstacle and / or UE location information and / or speed information.

[0170] (3) The UE measures at least two special CSI-RS measurement results, obtains the corresponding channel RSRP information, and judges whether there is / already an obstacle blocking the direct link in the channel based on the RSRP change trend and absolute size;

[0171] (4) The UE measures at least two special CSI-RS measurement results and inputs the measurement results into a trained neural network. The neural network determines whether the direct link will be blocked. The UE determines whether there is / already an obstacle blocking the direct link in the channel based on the judgment result of the neural network.

[0172] When the UE determines that the current link will be or has been significantly obstructed, the UE reports the relevant information to the base station. After receiving the information, the base station adds the self-healing beam to the candidate beam list and performs beam management / beam switching / beam recovery in accordance with the current protocol.

[0173] For example, consider the process of switching from a self-healing beam to a normal beam.

[0174] After the base station and UE establish a self-healing beam connection, the base station can determine whether the current link will be unobstructed or is no longer obstructed in the following ways:

[0175] (1) The base station measures at least two SRS and measures the uplink channel matrix. The base station obtains the location information and / or speed information of obstacles in the channel from the at least two uplink channel matrices. Based on the current obstacle and / or UE location information and / or speed information, it determines whether there are obstacles in the channel that block the direct link.

[0176] (2) The base station measures at least two SRS and measures the uplink channel matrix. The base station obtains the location information and / or velocity information of obstacles in the channel from the at least two uplink channel matrices, and requests the sensing measurement results of other sensing devices on the coverage area of ​​the base station from the core network. It obtains the location information and / or velocity information of obstacles and / or UEs in the channel, and judges whether there are / already exist obstacles blocking the direct link in the channel based on the current location information and / or velocity information of obstacles and / or UEs.

[0177] (3) The base station measures at least two SRSs and determines whether there are obstacles blocking the direct link in the channel based on the RSRP of the measured SRSs;

[0178] (4) The base station measures at least two SRS and measures the uplink channel matrix. The measurement results are input into a trained neural network. The neural network determines whether the direct link will be blocked. The base station determines whether there is / already an obstacle blocking the direct link in the channel based on the judgment result of the neural network.

[0179] Furthermore, once the base station determines that the direct link is unobstructed, it can determine a set of candidate normal beams based on the most recent specific CSI-RS explicit feedback result of the UE. This set of beams may not include self-healing beams.

[0180] In addition, the base station notifies the UE to end the special CSI-RS measurement feedback, and instructs the UE to measure the RSRP of the candidate beam set and provide specified feedback information; then, the UE measures the RSRP of the candidate beam set, selects an optimal beam, and provides its specified feedback information to the base station; the base station switches to the optimal beam and establishes a connection with the UE based on the UE's feedback information.

[0181] Optionally, the UE may know the location information of the base station in advance, and the UE may determine that the current link will not / is no longer blocked in the following ways:

[0182] (1) The UE measures at least two special CSI-RS measurement results, obtains the location information and / or speed information of obstacles in the channel, and determines whether there are obstacles in the channel that will not / have already been blocked from directly hitting the link based on the current obstacle and / or UE location information and / or speed information.

[0183] (2) The UE measures at least two special CSI-RS measurement results and requests other sensing devices from the core network to measure the sensing results of the coverage area of ​​the serving base station, obtains the location information and / or speed information of obstacles in the channel, and determines whether there are obstacles in the channel that will not / have been blocked from directly hitting the link based on the current obstacle and / or UE location information and / or speed information.

[0184] (3) The UE measures at least two special CSI-RS measurement results, obtains the corresponding channel RSRP information, and determines whether there are obstacles in the channel that will not / have already been blocked from directly hitting the link based on the RSRP change trend and absolute size;

[0185] (4) The UE measures at least two special CSI-RS measurement results and inputs the measurement results into a trained neural network. The neural network determines whether the direct link will be blocked. The UE determines whether there are obstacles in the channel that will not / are no longer blocked from the direct link based on the judgment result of the neural network.

[0186] Furthermore, when the UE determines that the direct link is not blocked, the UE will feed back the information to the base station. The base station can determine a set of candidate normal beams based on the most recent specific CSI-RS explicit feedback result of the UE. This set of beams may not include self-healing beams.

[0187] In addition, the base station notifies the UE to end the special CSI-RS measurement feedback, and instructs the UE to measure the RSRP of the candidate beam set and provide specified feedback information; then, the UE measures the RSRP of the candidate beam set, selects an optimal beam, and provides its specified feedback information to the base station; the base station switches to the optimal beam and establishes a connection with the UE based on the UE's feedback information.

[0188] In other words, this disclosure proposes a self-healing beam management and switching method based on display feedback, which can realize automatic switching of the self-healing beam when the direct link is blocked and automatic switching back to the normal beam after the blockage disappears. This switching can be triggered by the UE or by the base station.

[0189] For example, consider adaptive self-healing beam switching based on environment awareness.

[0190] Among these, the base station uses self-healing beams to serve the target UE based on environmental perception results, including:

[0191] The base station periodically initiates sensing requests to detect obstacles within its coverage area; the respondent of these sensing requests can be the base station itself, other base stations, or UEs connected to the sensing network.

[0192] The obstacle perception measurement results shall include at least one of the following: obstacle position, obstacle velocity vector, and obstacle size;

[0193] UE perception measurement results should include at least one of the following: UE location, UE speed;

[0194] Afterwards, the base station calculates the motion trajectory of the obstacle and the UE based on the obstacle and UE perception measurement results, determines whether the obstacle will interfere with the UE communication beam, and selects a set of parameters from the self-healing beam configuration parameter set based on the perception measurement results and the judgment results for communication with the UE;

[0195] It should be noted that the self-healing beam configuration parameter set contains multiple different sets of self-healing beam configuration parameters. Each set of self-healing beam configuration parameters contains at least one of the following parameters: distance from the base station to the obstacle, distance from the base station to the UE, and distance from the UE to the obstacle.

[0196] In other words, the embodiments of this disclosure propose a perception-assisted self-healing beam management method, and the base station can select a suitable self-healing beam configuration parameter to communicate with the UE based on the actual situation, namely the distance from the base station to the obstacle, the distance from the base station to the UE, and the distance from the UE to the obstacle.

[0197] It is understood that, in order to achieve the above-mentioned functions, the communication device includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should readily recognize that, based on the algorithmic steps of the examples described in conjunction with the embodiments of this disclosure, this disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware 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 disclosure.

[0198] This disclosure embodiment can divide the communication device into functional modules according to the above method embodiment. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one functional module. The integrated module can be implemented in hardware or software. It should be noted that the module division in this disclosure embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods. The following description uses the example of dividing each functional module according to each function.

[0199] Figure 10 This is a schematic diagram of the structure of a communication device provided in an embodiment of this disclosure. Figure 1 The communication device can be applied to the first node and perform the above. Figure 5 The communication method shown, and Figure 9 The example shown is for the first node in the communication method. Figure 10 As shown, the communication device 1000 includes: an acquisition module 1001 and a processing module 1002.

[0200] The acquisition module 1001 is used to acquire the occlusion status of the direct link between the first node and the second node; the processing module 1002 is used to communicate with the second node using the target beam based on the occlusion status.

[0201] In some embodiments, the processing module 1002 is specifically used to communicate with the second node using a self-healing beam when the direct link is blocked; or, the processing module 1002 is further used to communicate with the second node using a non-self-healing beam when the direct link is not blocked.

[0202] In some embodiments, the acquisition module 1001 is specifically used to acquire the perception measurement information of the first node, the perception measurement information including the state information of the perceived object within the perception range of the first node; the acquisition module 1001 is also used to acquire the state information of the second node and the state information of the obstacle between the first node and the second node based on the perception measurement information, the state information including at least one of the following: position information, speed information, size information; the processing module 1002 is also used to determine the motion trajectory of the second node and the obstacle based on the state information of the second node and the state information of the obstacle; the processing module 1002 is also used to determine the occlusion status of the direct link based on the motion trajectory.

[0203] In some embodiments, the acquisition module 1001 is specifically used to acquire channel state information of the direct link; the acquisition module 1001 is also used to acquire state information of the second node and state information of the obstacle between the first node and the second node based on the channel state information; the processing module 1002 is also used to determine the motion trajectory of the second node and the obstacle based on the state information of the second node and the state information of the obstacle; the processing module 1002 is also used to determine the occlusion status of the direct link based on the motion trajectory.

[0204] In some embodiments, the acquisition module 1001 is specifically used to acquire channel state information of the direct link and sensing measurement information of the first node; the acquisition module 1001 is also used to acquire state information of the second node and state information of the obstacle between the first node and the second node based on the channel state information and the sensing measurement information; the processing module 1002 is also used to determine the motion trajectory of the second node and the obstacle based on the state information of the second node and the state information of the obstacle; the processing module 1002 is also used to determine the occlusion status of the direct link based on the motion trajectory.

[0205] In some embodiments, the acquisition module 1001 is specifically used to acquire channel state information of the direct link; the acquisition module 1001 is also used to acquire reference signal received power (RSRP) information of the channel corresponding to the direct link based on the channel state information; the processing module 1002 is also used to determine the obstruction status of the direct link based on the reference signal received power information.

[0206] In some embodiments, the acquisition module 1001 is specifically used to acquire channel state information of the direct link; the processing module 1002 is further used to determine the occlusion status of the direct link by inputting the channel state information into a trained preset neural network model.

[0207] In some embodiments, the preset neural network model includes a first neural network model and multiple second neural network models, and the first neural network model is fully connected to the multiple second neural network models. Each second neural network model corresponds to a parameter in the channel state information. The processing module 1002 is specifically used to obtain multiple output results by inputting the channel state information into the trained multiple second neural network models. The processing module 1002 is also used to determine the occlusion status of the direct link by inputting the multiple output results into the trained first neural network model.

[0208] In some embodiments, the channel state information includes the channel measurement results of the channel state information reference signal (CSI-RS) sent by the second node to the first node, or the channel state information includes the channel measurement results of the sounding reference signal (SRS) sent by the first node to the second node.

[0209] In some embodiments, the channel measurement results include at least one of the following:

[0210] Channel matrix;

[0211] The conjugate transpose of the channel matrix;

[0212] The product of the channel matrix and the conjugate transpose of the channel matrix;

[0213] The product of the conjugate transpose of the channel matrix and the channel matrix;

[0214] All singular values ​​and corresponding singular vectors of the channel matrix;

[0215] The first N singular values ​​of the channel matrix arranged in descending order, and their corresponding singular vectors;

[0216] All singular vectors of the channel matrix;

[0217] The singular vectors corresponding to the first N singular values ​​of the channel matrix arranged in descending order;

[0218] All singular values ​​of the channel matrix;

[0219] The first N singular values ​​of the channel matrix, arranged in descending order;

[0220] The sum of squares of all singular values ​​of the channel matrix.

[0221] In some embodiments, the channel state information further includes: first indication information for indicating whether to use a self-healing beam, the first indication information being determined by the second node based on channel measurement results of CSI-RS sent by the first node; the processing module 1002 is further configured to communicate with the second node using a target beam based on the first indication information in the channel state information.

[0222] In some embodiments, the acquisition module 1001 is specifically used to receive channel state information sent by the second node. The channel state information is sent by the second node when it is determined that the direct link is blocked based on the channel measurement results of the CSI-RS sent by the first node.

[0223] In some embodiments, the communication device 1000 further includes a transmitting module 1003. The transmitting module 1003 is configured to transmit second indication information to the second node, the second indication information being used to request the acquisition of channel measurement results of the CSI-RS of the direct link; the acquisition module 1001 is specifically configured to receive channel status information transmitted by the second node in response to the second indication information.

[0224] In some embodiments, the second indication information sent to the second node is any one of the following:

[0225] Randomly send a second instruction message to the second node;

[0226] Send a second instruction message to the second node based on a preset cycle;

[0227] Send a second instruction message to the second node within a preset time period based on a preset cycle;

[0228] In response to receiving a measurement request from the second node, send a second indication message to the second node;

[0229] In response to receiving a measurement request from the second node, a second indication message is sent to the second node based on a preset period;

[0230] In response to receiving a measurement request from the second node, a second indication message is sent to the second node within a preset time period based on a preset cycle.

[0231] In some embodiments, the second indication information is carried in the CSI-RS header sent by the first node to the second node, or the second indication information is carried in the downlink control information (DCI) sent by the first node to the second node.

[0232] In some embodiments, the processing module 1002 is specifically configured to, when the direct link is blocked, acquire a first distance value between the first node and the second node, a second distance value between the first node and the obstacle, and a third distance value between the second node and the obstacle; the processing module 1002 is further configured to, based on the first distance value, the second distance value, and the third distance value, determine a target self-healing beam from a plurality of preset self-healing beams; the processing module 1002 is further configured to, using the target self-healing beam, communicate with the second node.

[0233] Figure 11 This is a schematic diagram of the structure of a communication device provided in an embodiment of this disclosure. Figure 2 The communication device can be applied to the second node and perform the above. Figure 8 The communication method shown, and Figure 9 The embodiment corresponding to the second node in the communication method shown. For example... Figure 11 As shown, the communication device 1100 includes: a receiving module 1101 and a transmitting module 1102.

[0234] The receiving module 1101 is used to receive the Channel State Information Reference Signal (CSI-RS) sent by the first node; the transmitting module 1102 is used to send the channel state information of the direct link to the first node according to the CSI-RS. The channel state information is used to determine the obstruction status of the direct link and includes the channel measurement results of the CSI-RS.

[0235] In some embodiments, the sending module 1102 is specifically used to send channel state information of the direct link to the first node in response to receiving second indication information from the first node, wherein the second indication information is used to request the acquisition of the channel measurement results of the CSI-RS of the direct link.

[0236] In some embodiments, the communication device 1100 further includes a processing module 1103. The processing module 1103 is configured to acquire channel measurement results from CSI-RS; the processing module 1103 is also configured to acquire, based on the channel measurement results from CSI-RS, the status information of the second node and the status information of the obstacle between the first node and the second node, the status information including at least one of the following: position information, speed information, and size information; the processing module 1103 is also configured to determine the motion trajectory of the second node and the obstacle based on the status information of the second node and the status information of the obstacle; the processing module 1103 is also configured to determine the obstruction status of the direct link based on the motion trajectory; the sending module 1102 is specifically configured to send the channel status information of the direct link to the first node when the direct link is obstructed.

[0237] In some embodiments, the processing module 1103 is further configured to acquire the channel measurement results of CSI-RS and the sensing measurement information of the first node; the processing module 1103 is further configured to acquire the status information of the second node and the status information of the obstacle between the first node and the second node based on the channel measurement results of CSI-RS and the sensing measurement information; the processing module 1103 is further configured to determine the motion trajectory of the second node and the obstacle based on the status information of the second node and the status information of the obstacle; the processing module 1103 is further configured to determine the obstruction status of the direct link based on the motion trajectory; the sending module 1102 is specifically configured to send the channel status information of the direct link to the first node when the direct link is obstructed.

[0238] In some embodiments, the processing module 1103 is further configured to acquire the channel measurement results of CSI-RS; the processing module 1103 is further configured to acquire the reference signal received power (RSRP) information of the channel corresponding to the direct link based on the channel measurement results of CSI-RS; the processing module 1103 is further configured to determine the obstruction status of the direct link based on the reference signal received power information; and the transmitting module 1102 is specifically configured to transmit the channel status information of the direct link to the first node when the direct link is obstructed.

[0239] In some embodiments, the processing module 1103 is further configured to acquire the channel measurement results of CSI-RS; the processing module 1103 is further configured to determine the obstruction status of the direct link by inputting the channel measurement results of CSI-RS into a trained preset neural network model; the sending module 1102 is specifically configured to send the channel status information of the direct link to the first node when the direct link is obstructed.

[0240] In some embodiments, the channel measurement results include at least one of the following:

[0241] Channel matrix;

[0242] The conjugate transpose of the channel matrix;

[0243] The product of the channel matrix and the conjugate transpose of the channel matrix;

[0244] The product of the conjugate transpose of the channel matrix and the channel matrix;

[0245] All singular values ​​and corresponding singular vectors of the channel matrix;

[0246] The first N singular values ​​of the channel matrix arranged in descending order, and their corresponding singular vectors;

[0247] All singular vectors of the channel matrix;

[0248] The singular vectors corresponding to the first N singular values ​​of the channel matrix arranged in descending order;

[0249] All singular values ​​of the channel matrix;

[0250] The first N singular values ​​of the channel matrix, arranged in descending order;

[0251] The sum of squares of all singular values ​​of the channel matrix;

[0252] The first indication information used to indicate whether to use a self-healing beam.

[0253] In some embodiments, if the second node determines that the direct link is blocked, the first indication information indicates the use of a self-healing beam; or...

[0254] If the second node determines that the direct link is not blocked, the first indication information indicates the use of a non-self-healing beam.

[0255] In implementing the functionality of the integrated modules described above using hardware, this disclosure provides another possible structure for the communication device involved in the above embodiments. For example... Figure 12 As shown, the communication device 1200 includes: a processor 1202 and a bus 1204. Optionally, the communication device may also include a memory 1201; alternatively, the communication device may also include a communication interface 1203.

[0256] Processor 1202 may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with embodiments of this disclosure. Processor 1202 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with embodiments of this disclosure. Processor 1202 may also be a combination of functions implementing computational capabilities, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0257] The communication interface 1203 is used to connect with other devices via a communication network. This communication network can be Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0258] The memory 1201 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), disk storage medium or other magnetic storage device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto.

[0259] As one possible implementation, the memory 1201 can exist independently of the processor 1202. The memory 1201 can be connected to the processor 1202 via a bus 1204 and is used to store instructions or program code. When the processor 1202 calls and executes the instructions or program code stored in the memory 1201, it can implement the communication method provided in the embodiments of this disclosure.

[0260] In another possible implementation, the memory 1201 can also be integrated with the processor 1202.

[0261] Bus 1204 can be an extended industry standard architecture (EISA) bus, etc. Bus 1204 can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 12 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.

[0262] Some embodiments of this disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium) storing computer program instructions that, when executed on a computer, cause the computer to perform the communication method as described in any of the above embodiments.

[0263] Exemplary examples of computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), optical discs (e.g., compact disks (CDs), digital versatile disks (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROMs), cards, sticks, or key drives, etc.). The various computer-readable storage media described in this disclosure may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0264] This disclosure provides a computer program product containing instructions that, when run on a computer, cause the computer to perform the communication method described in any of the above embodiments.

[0265] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A communication method, characterized in that, Applied to the first node, including: Obtain the occlusion status of the direct link between the first node and the second node; Based on the aforementioned obstruction, the target beam is used to communicate with the second node.

2. The method according to claim 1, characterized in that, The step of communicating with the second node using the target beam based on the occlusion situation includes: In the event that the direct beam link is blocked, a self-healing beam is used to communicate with the second node; or... When the direct link is not blocked, a non-self-healing beam is used to communicate with the second node.

3. The method according to claim 1, characterized in that, The step of obtaining the occlusion status of the direct link between the first node and the second node includes: Obtain the perception measurement information of the first node, the perception measurement information including the state information of the perceived object within the perception range of the first node; Based on the perception measurement information, the state information of the second node and the state information of the obstacle between the first node and the second node are obtained. The state information includes at least one of the following: position information, velocity information, and size information. Based on the state information of the second node and the state information of the obstacle, determine the movement trajectories of the second node and the obstacle; Based on the motion trajectory, the occlusion status of the direct-fire link is determined.

4. The method according to claim 1, characterized in that, The step of obtaining the occlusion status of the direct link between the first node and the second node includes: Obtain the channel state information of the direct-fire link; Based on the channel state information, obtain the state information of the second node and the state information of the obstacle between the first node and the second node; Based on the state information of the second node and the state information of the obstacle, determine the movement trajectories of the second node and the obstacle; Based on the motion trajectory, the occlusion status of the direct-fire link is determined.

5. The method according to claim 1, characterized in that, The step of obtaining the occlusion status of the direct link between the first node and the second node includes: Obtain the channel state information of the direct-fire link and the sensing measurement information of the first node; Based on the channel state information and the sensing measurement information, obtain the state information of the second node and the state information of the obstacle between the first node and the second node; Based on the state information of the second node and the state information of the obstacle, determine the movement trajectories of the second node and the obstacle; Based on the motion trajectory, the occlusion status of the direct-fire link is determined.

6. The method according to claim 1, characterized in that, The step of obtaining the occlusion status of the direct link between the first node and the second node includes: Obtain the channel state information of the direct-fire link; Based on the channel state information, obtain the reference signal received power (RSRP) information of the channel corresponding to the direct-fire link; The obstruction status of the direct-fire link is determined based on the received power information of the reference signal.

7. The method according to claim 1, characterized in that, The step of obtaining the occlusion status of the direct link between the first node and the second node includes: Obtain the channel state information of the direct-fire link; The occlusion status of the direct-view link is determined by inputting the channel state information into a trained preset neural network model.

8. The method according to claim 7, characterized in that, The preset neural network model includes a first neural network model and multiple second neural network models, and the first neural network model is fully connected to the multiple second neural network models. Each second neural network model corresponds to a parameter in the channel state information. The step of determining the occlusion status of the direct-view link by inputting the channel state information into a trained preset neural network model includes: By inputting the channel state information into the trained multiple second neural network models, multiple output results are obtained; By inputting the multiple output results into the trained first neural network model, the occlusion status of the direct-fire link is determined.

9. The method according to any one of claims 4-8, characterized in that, The channel state information includes the channel measurement results of the Channel State Information Reference Signal (CSI-RS) sent by the second node to the first node, or the channel state information includes the channel measurement results of the Sounding Reference Signal (SRS) sent by the first node to the second node.

10. The method according to claim 9, characterized in that, The channel measurement results include at least one of the following: Channel matrix; The conjugate transpose of the channel matrix; The product of the channel matrix and the conjugate transpose of the channel matrix; The product of the conjugate transpose of the channel matrix and the channel matrix; All singular values ​​and corresponding singular vectors of the channel matrix; The first N singular values ​​of the channel matrix arranged in descending order, and their corresponding singular vectors; All singular vectors of the channel matrix; The singular vectors corresponding to the first N singular values ​​of the channel matrix arranged in descending order; All singular values ​​of the channel matrix; The first N singular values ​​of the channel matrix, arranged in descending order; The sum of squares of all singular values ​​of the channel matrix.

11. The method according to claim 9, characterized in that, The channel state information further includes: first indication information for indicating whether the self-healing beam is used, the first indication information being determined by the second node based on channel measurement results from the CSI-RS transmitted by the first node; the method further includes: Based on the first indication information in the channel state information, the target beam is used to communicate with the second node.

12. The method according to claim 9, characterized in that, Obtaining the channel state information of the direct-fire link includes: The second node receives the channel state information sent by the second node, which is sent by the second node after determining that the direct link is blocked based on the channel measurement results of the CSI-RS sent by the first node.

13. The method according to claim 9, characterized in that, Obtaining the channel state information of the direct-fire link includes: Send a second indication message to the second node, the second indication message being used to request the acquisition of the CSI-RS channel measurement results of the direct link; Receive the channel state information sent by the second node in response to the second indication information.

14. The method according to claim 13, characterized in that, The second instruction information sent to the second node is any one of the following: The second indication information is sent randomly to the second node; The second indication information is sent to the second node based on a preset period; The second indication information is sent to the second node within a preset time period based on the preset cycle; In response to receiving the measurement request from the second node, the second indication information is sent to the second node; In response to receiving a measurement request from the second node, the second indication information is sent to the second node based on the preset period; In response to receiving a measurement request from the second node, the second indication information is sent to the second node within the preset time period based on the preset cycle.

15. The method according to claim 13, characterized in that, The second indication information is carried in the CSI-RS header sent by the first node to the second node, or the second indication information is carried in the downlink control information (DCI) sent by the first node to the second node.

16. The method according to claim 2, characterized in that, The step of communicating with the second node using a self-healing beam when the direct beam link is blocked includes: When the direct link is blocked, obtain the first distance value between the first node and the second node, the second distance value between the first node and the obstacle, and the third distance value between the second node and the obstacle; Based on the first distance value, the second distance value, and the third distance value, a target self-healing beam is determined from a plurality of preset self-healing beams; The target self-healing beam is used to communicate with the second node.

17. A communication method, characterized in that, Applied to the second node, including: Receive the Channel State Information Reference Signal (CSI-RS) sent by the first node; According to the CSI-RS, the channel state information of the direct link is sent to the first node. The channel state information is used to determine the obstruction status of the direct link, and the channel state information includes the channel measurement results of the CSI-RS.

18. The method according to claim 17, characterized in that, The step of sending the channel state information of the direct link to the first node according to the CSI-RS includes: In response to receiving a second indication message from the first node, the channel state information of the direct link is sent to the first node, wherein the second indication message is used to request the acquisition of the CSI-RS channel measurement results of the direct link.

19. The method according to claim 17, characterized in that, The step of sending the channel state information of the direct link to the first node according to the CSI-RS includes: Obtain the channel measurement results of the CSI-RS; Based on the channel measurement results of the CSI-RS, the status information of the second node and the status information of the obstacle between the first node and the second node are obtained. The status information includes at least one of the following: position information, velocity information, and size information. Based on the state information of the second node and the state information of the obstacle, determine the movement trajectories of the second node and the obstacle; Based on the motion trajectory, determine the occlusion status of the direct-fire link; When the direct link is blocked, the channel state information of the direct link is sent to the first node.

20. The method according to claim 17, characterized in that, The step of sending the channel state information of the direct link to the first node according to the CSI-RS includes: Obtain the channel measurement results of the CSI-RS and the sensing measurement information of the first node; Based on the channel measurement results of the CSI-RS and the sensing measurement information, the status information of the second node and the status information of the obstacles between the first node and the second node are obtained. Based on the state information of the second node and the state information of the obstacle, determine the movement trajectories of the second node and the obstacle; Based on the motion trajectory, determine the occlusion status of the direct-fire link; When the direct link is blocked, the channel state information of the direct link is sent to the first node.

21. The method according to claim 17, characterized in that, The step of sending the channel state information of the direct link to the first node according to the CSI-RS includes: Obtain the channel measurement results of the CSI-RS; Based on the channel measurement results of the CSI-RS, obtain the reference signal received power (RSRP) information of the channel corresponding to the direct link; Based on the received power information of the reference signal, determine the obstruction status of the direct-fire link; When the direct link is blocked, the channel state information of the direct link is sent to the first node.

22. The method according to claim 17, characterized in that, The step of sending the channel state information of the direct link to the first node according to the CSI-RS includes: Obtain the channel measurement results of the CSI-RS; The occlusion status of the direct link is determined by inputting the channel measurement results of the CSI-RS into a trained preset neural network model; When the direct link is blocked, the channel state information of the direct link is sent to the first node.

23. The method according to claim 17, characterized in that, The channel measurement results include at least one of the following: Channel matrix; The conjugate transpose of the channel matrix; The product of the channel matrix and the conjugate transpose of the channel matrix; The product of the conjugate transpose of the channel matrix and the channel matrix; All singular values ​​and corresponding singular vectors of the channel matrix; The first N singular values ​​of the channel matrix arranged in descending order, and their corresponding singular vectors; All singular vectors of the channel matrix; The singular vectors corresponding to the first N singular values ​​of the channel matrix arranged in descending order; All singular values ​​of the channel matrix; The first N singular values ​​of the channel matrix, arranged in descending order; The sum of squares of all singular values ​​of the channel matrix; First indication information used to indicate whether the self-healing beam is used.

24. The method according to claim 23, characterized in that, If the second node determines that the direct-fire link is blocked, the first indication information indicates the use of a self-healing beam; or... If the second node determines that the direct link is not blocked, the first indication information indicates the use of a non-self-healing beam.

25. A communication device, characterized in that, include: Memory and processor; Memory and processor are coupled; The memory is used to store instructions that can be executed by the processor; When the processor executes the instructions, it performs the method as described in any one of claims 1-24.

26. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed on a computer, cause the computer to perform the method as described in any one of claims 1-24.

27. A computer program product, characterized in that, The computer program product includes computer program instructions that, when executed, implement the method as described in any one of claims 1-24.

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