Communication method, apparatus and system

Abstract

A communication method, apparatus and system, which relate to the field of communications and can avoid the exposure of target privacy. The method may comprise: a first node sending first information to a second node, wherein the first information is used for indicating a first transmission resource on which the second node sends a first signal; the second node sending the first signal on the first transmission resource indicated by the first information, wherein the first signal is used for the first node obtaining channel information; the first node sending second information to a third node, wherein the second information is used for indicating a second transmission resource on which the third node sends a second signal, and the second transmission resource partially overlaps the first transmission resource; and the third node sending the second signal on the second transmission resource indicated by the second information, wherein the second signal is not used for the first node obtaining the channel information. The solution of the present application can be widely applied to fields such as communication technology, artificial intelligence, Internet of vehicles and smart home networking.

Description

A communication method, apparatus, and system

[0001] The present application claims priority to the Chinese patent application No. 202411260154.4, filed on September 9, 2024, and entitled "A communication method, apparatus, and system", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication, and in particular to a communication method, apparatus, and system. BACKGROUND

[0003] Wireless sensing technology refers to sensing and inferring the surrounding environment by analyzing the sensing signal "modulated" by the sensed target (or target), and then determining the related information of the target (such as an object, an animal, or a person), such as the distance, direction, speed, motion, behavior, etc. of the target.

[0004] Among them, the wireless signal, such as the preamble signal, can be used as the above-mentioned sensing signal. If the structure of the wireless signal is public, it may cause the problem of target privacy exposure. For example, an attacker can easily obtain the sensing signal, and then based on the sensing signal, can achieve channel estimation, obtain channel information, and infer the related information of the target based on the channel state, so as to expose the target to the attacker.

[0005] Therefore, how to avoid the problem of target privacy exposure needs to be solved urgently. SUMMARY

[0006] The embodiments of the present application provide a communication method, apparatus, and system, which can avoid the exposure of target privacy.

[0007] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0008] In a first aspect, the present application provides a communication method, which can be executed by a first node, such as a first management node. In the case where it is not specially stated, the "first node" in the present application can refer to the first node itself, or a component (such as a processor, a radio frequency unit, a chip, or a chip system, etc.) in the first node, or a logic module or software capable of realizing all or part of the functions of the first node. The method comprises: the first node sends first information and second information; wherein the first information is used to indicate the first transmission resource of the first node to send the first signal, and the second information is used to indicate the second transmission resource of the third node to send the second signal; the second transmission resource and the first transmission resource partially overlap; the first signal is used for the first node to obtain channel information, and the second signal is not used for the first node to obtain channel information.

[0009] In the method of the first aspect, when the second node transmits the signal (referred to as the first signal) for channel estimation on the transmission resource (which can be referred to as the first transmission resource), the second node can transmit another signal (which can be referred to as the second signal) on another transmission resource (which can be referred to as the second transmission resource) that partially overlaps with the transmission resource, that is, the second signal interferes with the transmission of the first signal, so that after the attacker receives the first signal and the second signal superimposed together after being transmitted through the channel, because the transmission resources overlap together, the attacker cannot distinguish which transmission resource transmits the first signal, which transmission resource transmits the second signal, and which transmission resource transmits the superimposed signal of the first signal and the second signal, so the attacker cannot analyze the received signal, or in other words, even if the attacker obtains the transmission resource, analyzes the signal transmitted through the transmission resource, and obtains the channel information corresponding to each signal based on the analysis result, because the attacker cannot obtain the correspondence between different signals and channel information, the attacker cannot obtain the relevant information of the target, and cannot obtain the privacy of the target by eavesdropping the signal.

[0010] In a possible design, the first node receives the first signal on the resource on which the first transmission resource and the second transmission resource do not completely overlap. Based on this possible design, the first node can obtain the signal transmitted through the channel by the first signal, rather than obtaining the superimposed signal of the first signal and the second signal transmitted through the channel, so as to achieve the purpose of obtaining the channel information by the first node according to the first signal.

[0011] In a possible design, the first information is further used to indicate the first signal, and / or the second information is further used to indicate the second signal. Based on this possible design, the first node can transmit the indicated first signal, reducing the time delay and processing resource of the second node for generating the first signal, and / or the first node can transmit the indicated second signal, reducing the time delay and processing resource of the third node for generating the second signal.

[0012] In a second aspect, the present application provides a communication method, which can be executed by a second node, such as a first terminal node. In the case of no special description, the "second node" in the present application can refer to the second node itself, or a component (such as a processor, a radio frequency unit, a chip, or a chip system) in the second node, or a logic module or software capable of realizing all or part of the function of the second node. The method comprises: the second node receives first information, the first information is used to indicate a first transmission resource of the second node for transmitting a first signal, the first signal is transmitted on the first transmission resource indicated by the first information, and the first signal is used for the first node to obtain channel information; the first transmission resource partially overlaps with a second transmission resource, and the second transmission resource is used for a third node to transmit a second signal, and the second signal is not used for the first node to obtain channel information.

[0013] Based on the method of the second aspect, when the second node transmits the signal (referred to as the first signal) for channel estimation on the transmission resource (which can be referred to as the first transmission resource), the second node can transmit another signal (which can be referred to as the second signal) on another transmission resource (which can be referred to as the second transmission resource) that partially overlaps with the transmission resource, that is, the transmission of the first signal is interfered by the second signal, so that after the attacker receives the first signal and the second signal superimposed together after being transmitted through the channel, the transmission resources overlap together, so that the attacker cannot distinguish which transmission resource transmits the first signal, which transmission resource transmits the second signal, and which transmission resource transmits the superimposed signal of the first signal and the second signal, so as to be unable to analyze the received signal, or in other words, even if the attacker knows the transmission resource, analyzes the signal transmitted through the transmission resource, and obtains the channel information corresponding to each signal based on the analysis result, but since the attacker cannot know the correspondence between different signals and channel information, the attacker cannot know the relevant information of the target, and cannot obtain the privacy of the target by eavesdropping the signal.

[0014] In a third aspect, the present application provides a communication method, which can be executed by a third node, such as a second terminal node. In the absence of special description, the "third node" in the present application can refer to the third node itself, a component (such as a processor, a radio frequency unit, a chip, or a chip system) in the third node, or a logic module or software capable of realizing all or part of the functions of the third node. The method comprises: the third node receives second information, the second information being used to indicate a second transmission resource in which the third node transmits a second signal, the second signal being not used for a first node to obtain channel information, the second transmission resource partially overlapping with a first transmission resource, the first transmission resource being used for a second node to transmit a first signal, the first signal being used for the first node to obtain channel information.

[0015] Based on the method of the third aspect, when the second node transmits the signal (referred to as the first signal) for channel estimation on the transmission resource (which can be referred to as the first transmission resource), the second node can transmit another signal (which can be referred to as the second signal) on another transmission resource (which can be referred to as the second transmission resource) that partially overlaps with the transmission resource, that is, the transmission of the first signal is interfered by the second signal, so that after the attacker receives the first signal and the second signal superimposed together after being transmitted through the channel, the transmission resources are superimposed together, so that the attacker cannot distinguish which transmission resource transmits the first signal, which transmission resource transmits the second signal, and which transmission resource transmits the superimposed signal of the first signal and the second signal, so as to be unable to analyze the received signal, or in other words, even if the attacker knows the transmission resource, analyzes the signal transmitted through the transmission resource, and performs channel estimation based on the analysis result to obtain the channel information corresponding to each signal, but since the attacker cannot know the correspondence between different signals and channel information, the attacker cannot know the relevant information of the target, and cannot obtain the privacy of the target by eavesdropping the signal.

[0016] In a fourth aspect, the present application provides a communication method, which can be executed by a first node, such as a first management node. In the absence of special description, the "first node" in the present application can refer to the first node itself, a component (such as a processor, a radio frequency unit, a chip, or a chip system) in the first node, or a logic module or software capable of realizing all or part of the functions of the first node. The method comprises: the first node receives third information, sends fourth information, and sends a first signal on a first transmission resource, wherein the third information is used to indicate the first transmission resource of the first node for sending the first signal, the fourth information is used to indicate the second transmission resource of the third node for sending a second signal, the first transmission resource and the second transmission resource partially overlap, the first signal is used for the second node to obtain channel information, and the second signal is not used for the second node to obtain channel information.

[0017] In a possible design, the first node transmits a signal (may be referred to as a first signal) for channel estimation on a transmission resource (may be referred to as a first transmission resource), and transmits another signal (may be referred to as a second signal) on another transmission resource (may be referred to as a second transmission resource) partially overlapping with the first transmission resource, i.e., interferes with the transmission of the first signal by the second signal, so that the attacker cannot distinguish which transmission resource transmits the first signal, which transmission resource transmits the second signal, and which transmission resource transmits the superimposed signal of the first signal and the second signal after receiving the first signal and the second signal superimposed together after being transmitted through the channel, and thus cannot analyze the received signal, or in other words, even if the attacker knows the transmission resource, analyzes the signal transmitted through the transmission resource based on the analysis result, and performs channel estimation based on the analysis result to obtain channel information corresponding to each signal, but the attacker cannot obtain the corresponding relationship between different signals and channel information, and thus cannot obtain the relevant information of the target, and cannot obtain the privacy of the target by eavesdropping the signal.

[0018] In a possible design, the first node receives first request information from the second node, where the first request information is used to trigger the first node to send the fourth information. Based on this possible design, the first node can send the fourth information according to the first request information.

[0019] In a possible design, the fourth information is included in the first request information, and the fourth information is used to indicate the second transmission resource in which the third node transmits the second signal. Based on this possible design, the second node can obtain the fourth information through the first request information, and indirectly obtain the second transmission resource in which the second signal is transmitted.

[0020] In a possible design, the third information is further used to indicate the first signal, and / or the fourth information is further used to indicate the second signal. Based on this possible design, the first node can transmit the indicated first signal, reducing the time delay and processing resource of the first node for generating the first signal.

[0021] In a fifth aspect, the present application provides a communication method, which can be performed by a second node, such as a first terminal node, and in the case where no special description is given, the "second node" in the present application can refer to the second node itself, a component (such as a processor, a radio frequency unit, a chip, or a chip system, etc.) in the second node, or a logic module or software capable of realizing all or part of the functions of the second node. The method comprises: the second node sending third information, the third information being used to indicate a first transmission resource in which a first node transmits a first signal, the first signal being used for the second node to obtain channel information, and the first transmission resource and a second transmission resource not completely overlapping, the second transmission resource being used for a third node to transmit a second signal, the second signal not being used for the second node to obtain channel information.

[0022] Based on the method of the fifth aspect, when the first node transmits a signal (referred to as a first signal) for channel estimation on a transmission resource (which can be referred to as a first transmission resource), the first node can transmit another signal (which can be referred to as a second signal) on another transmission resource (which can be referred to as a second transmission resource) that partially overlaps with the transmission resource, that is, the first signal is interfered by the second signal in transmission, so that after an attacker receives the first signal and the second signal that are superimposed together after transmission through a channel, the attacker cannot distinguish which transmission resource transmits the first signal, which transmission resource transmits the second signal, and which transmission resource transmits the superimposed signal of the first signal and the second signal due to the overlapping of the transmission resources, so the attacker cannot analyze the received signal, or in other words, even if the attacker obtains the signal transmitted through the transmission resource based on the analysis result and performs channel estimation to obtain the channel information corresponding to each signal, the attacker cannot obtain the relevant information of the target due to the inability to obtain the correspondence between different signals and channel information, and cannot obtain the privacy of the target by eavesdropping the signal. In a possible design, the third information is further used to indicate the first signal. Based on this possible design, the first node can transmit the indicated first signal, reducing the time delay and processing resources of the first node in generating the first signal.

[0023] In a possible design, the second node sends first request information to the first node, the first request information being used to trigger the first node to send fourth information, the fourth information being used to indicate a second transmission resource in which the third node transmits the second signal.

[0024] Based on this possible design, the first node can send the fourth information according to the first request information.

[0025] In a possible design, the first request information includes fourth information, where the fourth information is used to indicate the second transmission resource in which the third node transmits the second signal. Based on this possible design, the second node can obtain the fourth information through the first request information, and indirectly obtain the second transmission resource in which the second signal is transmitted.

[0026] In a possible design, the fourth information is further used to indicate the second signal. Based on this possible design, the third node can transmit the second signal indicated by the fourth information, so that the latency and processing resource of the third node for generating the second signal are reduced.

[0027] In a sixth aspect, this application provides a communication method, which can be executed by a third node, such as a second terminal node. In the case where no special description is made, the "third node" in this application can refer to the third node itself, a component (for example, a processor, a radio frequency unit, a chip, or a chip system) in the third node, or a logic module or software capable of realizing all or part of the functions of the third node. The method includes: the third node receives fourth information, the fourth information is used to indicate a second transmission resource in which the third node transmits a second signal, and the third node transmits the second signal on the second transmission resource. The second transmission resource partially overlaps with a first transmission resource, the first transmission resource is used for a first node to transmit a first signal, the first signal is used for a second node to obtain channel information, and the second signal is not used for the second node to obtain the channel information.

[0028] Based on the method in the sixth aspect, when the first node transmits a signal (referred to as a first signal) used for channel estimation on a transmission resource (which can be referred to as a first transmission resource), the first node can transmit another signal (which can be referred to as a second signal) on another transmission resource (which can be referred to as a second transmission resource) that partially overlaps with the first transmission resource, that is, the first signal is interfered by the second signal, so that after an attacker receives the first signal and the second signal that are superimposed together after being transmitted through a channel, the attacker cannot distinguish which transmission resource transmits the first signal, which transmission resource transmits the second signal, and which transmission resource transmits a superimposed signal of the first signal and the second signal, because the transmission resources are superimposed together. Therefore, the attacker cannot analyze the received signal, or even if the attacker obtains the signal transmitted through the transmission resource based on the analysis result and performs channel estimation to obtain channel information corresponding to each signal, the attacker cannot obtain relevant information of the target because the attacker cannot obtain the correspondence between different signals and channel information, and cannot obtain the privacy of the target by eavesdropping the signal.

[0029] In a possible design, the fourth information is further used to indicate the second signal. Based on this possible design, the third node can transmit the second signal indicated by the fourth information, so that the latency and processing resource of the third node for generating the second signal are reduced.

[0030] In a seventh aspect, the present application provides a communication method, which can be performed by a first node, such as a first management node. In the present application, the first node can refer to the first node itself, a component (such as a processor, a radio frequency unit, a chip, or a chip system) in the first node, or a logic module or software capable of realizing all or part of the functions of the first node. The method comprises: the first node sending fifth information and sixth information, and sending a first signal on a first transmission resource, the fifth information being used to indicate a second transmission resource on which a second node sends a second signal, and the sixth information being used to indicate a third transmission resource on which a third node receives the first signal; the first transmission resource and the second transmission resource partially overlap, and the first signal is used for the third node to obtain channel information, and the second signal is not used for the third node to obtain channel information.

[0031] Based on the method of the seventh aspect, when the first node transmits a signal (referred to as a first signal) for channel estimation on a transmission resource (which can be referred to as a first transmission resource), the first node can transmit another signal (which can be referred to as a second signal) on another transmission resource (which can be referred to as a second transmission resource) that partially overlaps with the transmission resource, that is, the first signal is interfered by the second signal during transmission, so that after the first signal and the second signal superimposed together are transmitted through the channel, the attacker cannot distinguish which transmission resource transmits the first signal, which transmission resource transmits the second signal, and which transmission resource transmits the superimposed signal of the first signal and the second signal, because the transmission resources overlap together, so the attacker cannot analyze the received signal, or even if the attacker knows the transmission resource, analyzes the signal transmitted through the transmission resource based on the analysis result, and obtains the channel information corresponding to each signal based on the analysis result, but the attacker cannot obtain the relevant information of the target because the attacker cannot obtain the correspondence between different signals and channel information, and cannot obtain the privacy of the target by eavesdropping the signal. In a possible design, the third transmission resource is a resource that does not completely overlap with the first transmission resource and the second transmission resource. Based on this possible design, the third node can obtain the signal transmitted through the channel by the first signal, rather than the superimposed signal of the first signal and the second signal transmitted through the channel, so as to achieve the purpose of obtaining the channel information by the third node according to the first signal.

[0032] In a possible design, the first node receives seventh information from the third node, the seventh information being used to indicate the channel information between the first node and the third node, which is obtained by the third node according to the first signal.

[0033] Based on this possible design, the first node can obtain the channel information between the first node and the third node.

[0034] In a possible design, the first node receives eighth information from the third node, where the eighth information is used to indicate the transmission resource corresponding to the channel information between the first node and the third node.

[0035] Based on this possible design, the first node can explicitly determine the transmission resource corresponding to the channel information between the first node and the third node, and facilitate the first node to perform the sensing task related to the channel information.

[0036] In a possible design, the fifth information is further used to indicate the second signal; and / or, the sixth information is further used to indicate the first signal. Based on this possible design, the second node can send the second signal indicated by the fifth information, thereby reducing the time delay and processing resource of the second node for generating the second signal; and / or, the third node can obtain the first signal, thereby implementing obtaining the channel information according to the first signal.

[0037] In an eighth aspect, the present application provides a communication method, which can be executed by a second node, such as a first terminal node. In the case of no special description, the "second node" in the present application can refer to the second node itself, or a component (such as a processor, a radio frequency unit, a chip, or a chip system) in the second node, or a logic module or software capable of realizing all or part of the function of the second node. The method comprises: the second node receives fifth information, the fifth information is used to indicate a second transmission resource in which the second node sends a second signal, the second node sends the second signal on the second transmission resource indicated by the fifth information, the second signal is not used by the third node to obtain channel information, the second transmission resource and the first transmission resource partially overlap, the first transmission resource is used by the first node to send a first signal, and the first signal is used by the third node to obtain the channel information.

[0038] Based on the method in the eighth aspect, when the first node transmits a signal (referred to as a first signal) used for channel estimation on a transmission resource (which can be referred to as a first transmission resource), the first node can transmit another signal (which can be referred to as a second signal) on another transmission resource (which can be referred to as a second transmission resource) partially overlapping with the first transmission resource, that is, the first signal is interfered by the second signal through the second signal, so that after the attacker receives the first signal and the second signal superimposed together after being transmitted through the channel, the transmission resources overlap together, so that the attacker cannot distinguish which transmission resource transmits the first signal, which transmission resource transmits the second signal, and which transmission resource transmits the superimposed signal of the first signal and the second signal, and thus cannot analyze the received signal, or in other words, even if the attacker knows the transmission resource, analyzes the signal transmitted through the transmission resource based on the analysis result, and obtains the channel information corresponding to each signal based on the analysis result, but the attacker cannot know the correspondence between different signals and the channel information, and thus cannot know the relevant information of the target, and cannot obtain the privacy of the target by eavesdropping the signal.

[0039] In a possible design, the fifth information is further used for indicating the second signal. Based on this possible design, the second node can transmit the second signal indicated by the fifth information, reducing the time delay and processing resource of the second node for generating the second signal.

[0040] In a ninth aspect, the present application provides a communication method, which can be executed by a third node, such as a second terminal node. In the case where no special description is given, the "third node" in the present application can refer to the third node itself, a component (such as a processor, a radio frequency unit, a chip, or a chip system) in the third node, or a logic module or software capable of realizing all or part of the functions of the third node. The method comprises: receiving, by the third node, sixth information, the sixth information being used for indicating a third transmission resource for receiving, by the third node, a first signal, receiving, by the third node, the first signal on the third transmission resource, the first signal being transmitted by a first node on a first transmission resource, the first transmission resource and the second transmission resource being partially overlapped, the second transmission resource being used for transmitting, by a second node, a second signal, the first signal being used for obtaining, by the third node, channel information, and the second signal not being used for obtaining, by the third node, the channel information.

[0041] Based on the method in the ninth aspect, when the first node transmits a signal (referred to as the first signal) for channel estimation on a transmission resource (which can be referred to as the first transmission resource), the first node can transmit another signal (which can be referred to as the second signal) on another transmission resource (which can be referred to as the second transmission resource) partially overlapped with the transmission resource, that is, the transmission of the first signal is interfered by the second signal, so that after the attacker receives the first signal and the second signal superimposed together after being transmitted through the channel, the transmission resources are overlapped together, so that the attacker cannot distinguish which transmission resource transmits the first signal, which transmission resource transmits the second signal, and which transmission resource transmits the superimposed signal of the first signal and the second signal, and thus cannot analyze the received signal, or in other words, even if the attacker knows the transmission resource, analyzes the signal transmitted through the transmission resource based on the analysis result, and obtains the channel information corresponding to each signal based on the analysis result, the attacker cannot obtain the relevant information of the target because the attacker cannot know the correspondence between different signals and channel information, and thus cannot obtain the privacy of the target by eavesdropping the signal.

[0042] In a possible design, the sixth information is further used for indicating the first signal. Based on this possible design, the third node can obtain the first signal to obtain the channel information according to the first signal.

[0043] In a possible design, the third transmission resource is a resource that does not completely overlap with the first transmission resource and the second transmission resource. Based on this possible design, the third node can obtain the signal transmitted by the first signal via the channel, instead of obtaining the superimposed signal of the first signal and the second signal transmitted via the channel, so as to achieve the purpose of obtaining the channel information according to the first signal.

[0044] In a possible design, the third node sends seventh information to the first node, where the seventh information is used to indicate the channel information between the first node and the third node, and the channel information is obtained by the third node according to the first signal.

[0045] Based on this possible design, the first node can obtain the channel information between the first node and the third node.

[0046] In a possible design, the third node sends eighth information to the first node, where the eighth information is used to indicate the transmission resource corresponding to the channel information between the first node and the third node.

[0047] Based on this possible design, the first node can explicitly determine the transmission resource corresponding to the channel information between the first node and the third node, and thus facilitate the first node to perform the sensing task related to the channel information.

[0048] In a tenth aspect, the present application provides a communication method, which can be performed by a first node, such as a first management node. In the case where no special description is given, the "first node" in the present application can refer to the first node itself, or can refer to a component (for example, a processor, a radio frequency unit, a chip, or a chip system) in the first node, or can refer to a logic module or software that can realize all or part of the function of the first node. The method comprises the following steps: the first node sends ninth information, where the ninth information is used to indicate a first transmission resource in which the first node sends a first signal, and the first node sends the first signal in the first transmission resource, the first transmission resource and a second transmission resource partially overlap, the second transmission resource is used for a second node to send a second signal, the first signal is used for the second node to obtain channel information, and the second signal is not used for the second node to obtain the channel information.

[0049] Based on the method described in the tenth aspect, when the first node transmits a signal (referred to as the first signal) for channel estimation on a transmission resource (which may be called the first transmission resource), it can transmit another signal (referred to as the second signal) on another transmission resource (which may be called the second transmission resource) that partially overlaps with the first transmission resource. That is, the second signal interferes with the transmission of the first signal. This prevents the attacker from distinguishing which transmission resources transmit the first signal, which transmit the second signal, and which transmit a superposition of the first and second signals after channel transmission, due to the overlapping transmission resources. Therefore, the attacker cannot analyze the received signal. In other words, even if the attacker knows the transmission resources, analyzes the signals transmitted through the transmission resources, and performs channel estimation based on the analysis results to obtain the channel information corresponding to each signal, the attacker cannot know the correspondence between different signals and channel information, and thus cannot obtain relevant information about the target, and cannot obtain the target's privacy by eavesdropping on the signal. In one possible design, the ninth information is also used to indicate the first signal. Based on this possible design, the second node can obtain the first signal to obtain channel information based on the first signal.

[0050] In one possible design, the first node can also send or receive a tenth message, which is used to indicate the second transmission resource. The second node can obtain the second transmission resource in various ways.

[0051] In one possible design, the tenth information can also be used to indicate a second signal. Based on this possible design, the second node can send a second signal indicated by the tenth information, reducing the latency and processing resources required for the second node to generate the second signal.

[0052] In one possible design, the first node can also receive eleventh information from the second node, which is used to indicate the channel information between the first node and the second node, and the channel information is obtained by the second node based on the first signal.

[0053] Based on this possible design, the first node can obtain the channel information between the first node and the second node.

[0054] In one possible design, the first node can also receive a twelfth message from the second node, which is used to indicate the transmission resources corresponding to the channel information.

[0055] Based on this possible design, the first node can clearly identify the transmission resources corresponding to the channel information between the first node and the second node, which facilitates the first node to perform sensing tasks related to the channel information.

[0056] In a eleventh aspect, the present application provides a communication method, which can be executed by a second node, such as a first terminal node, and in the case where no special description is given, the "second node" in the present application can refer to the second node itself, a component (such as a processor, a radio frequency unit, a chip, or a chip system, etc.) in the second node, or a logic module or software capable of realizing all or part of the functions of the second node. The method comprises: receiving, by the second node, ninth information, the ninth information being used to indicate that the first node transmits a first signal on a first transmission resource and transmits a second signal on a second transmission resource, the second transmission resource and the first transmission resource partially overlap, the first signal is used for the second node to obtain channel information, and the second signal is not used for the second node to obtain channel information.

[0057] Based on the method of the eleventh aspect, when the first node transmits a signal (referred to as a first signal) for channel estimation on a transmission resource (which can be referred to as a first transmission resource), the first node can transmit another signal (which can be referred to as a second signal) on another transmission resource (which can be referred to as a second transmission resource) that partially overlaps with the transmission resource, that is, the transmission of the first signal is interfered by the second signal, so that after the attacker receives the first signal and the second signal that are superimposed together after being transmitted through the channel, the transmission resources overlap together, so that the attacker cannot distinguish which transmission resource transmits the first signal, which transmission resource transmits the second signal, and which transmission resource transmits the superimposed signal of the first signal and the second signal, and thus cannot analyze the received signal, or in other words, even if the attacker knows the transmission resource, analyzes the signal transmitted through the transmission resource based on the analysis result, and obtains the channel information corresponding to each signal based on the analysis result, the attacker cannot obtain the relevant information of the target because the attacker cannot know the correspondence between different signals and channel information, and thus cannot obtain the privacy of the target by eavesdropping the signal.

[0058] In a possible design, the ninth information is further used to indicate the first signal. Based on this possible design, the second node can obtain the first signal to obtain the channel information according to the first signal.

[0059] In a possible design, the second node can further receive tenth information or transmit the tenth information, the tenth information being used to indicate the second transmission resource. Based on this possible design, the second node can obtain the second transmission resource in multiple ways.

[0060] In a possible design, the tenth information is further used to indicate the second signal. Based on this possible design, the second node can transmit the second signal indicated by the tenth information, which reduces the time delay and processing resources of the second node for generating the second signal.

[0061] In a possible design, the second node can further send, to the first node, eleventh information used to indicate channel information between the first node and the second node, which is obtained by the second node according to the first signal.

[0062] Based on this possible design, the first node can obtain the channel information between the first node and the second node.

[0063] In a possible design, the second node can further send twelfth information used to indicate a transmission resource corresponding to the channel information between the first node and the second node.

[0064] Based on this possible design, the first node can explicitly obtain the transmission resource corresponding to the channel information between the first node and the second node, and thus can perform a sensing task related to the channel information.

[0065] In a possible design, the second node can further receive the first signal on a resource that is not completely overlapped with the first transmission resource.

[0066] Based on this possible design, the second node can obtain a signal transmitted by the first signal through the channel, instead of obtaining a superimposed signal of the first signal and the second signal transmitted through the channel, so as to achieve the purpose of obtaining the channel information according to the first signal.

[0067] In a twelfth aspect, the present application provides a communication method, which can be performed by a first node, such as a first management node. In the case of no special description, the "first node" in the present application can refer to the first node itself, a component (for example, a processor, a radio frequency unit, a chip, or a chip system) in the first node, or a logic module or software capable of realizing all or part of the functions of the first node. The method comprises the following steps: the first node receives thirteenth information used to indicate a first transmission resource used by the first node to send a first signal, sends the first signal on the first transmission resource, the first transmission resource is partially overlapped with a second transmission resource, the second transmission resource is used by a second node to send a second signal, the first signal is used by the second node to obtain channel information, and the second signal is not used by the second node to obtain the channel information.

[0068] In a possible design, the thirteenth information is further used to indicate the first signal. Based on this possible design, the second node can obtain the first signal, so as to obtain the channel information according to the first signal.

[0069] In a possible design, the thirteenth information is further used to indicate the first signal. Based on this possible design, the second node can obtain the first signal, so as to obtain the channel information according to the first signal.

[0070] In a possible design, the first node can further send or receive the fourteenth information, where the fourteenth information is used to indicate the second transmission resource. Based on this possible design, the second node can obtain the second transmission resource in multiple manners.

[0071] In a possible design, the fourteenth information is further used to indicate the second signal. Based on this possible design, the second node can send the second signal indicated by the fourteenth information, thereby reducing the time delay and processing resource of the second node for generating the second signal.

[0072] In a possible design, the first node can further receive the fifteenth information from the second node, where the fifteenth information is used to indicate the channel information between the first node and the second node, and the channel information is obtained by the second node according to the first signal.

[0073] Based on this possible design, the first node can obtain the channel information between the first node and the second node.

[0074] In a possible design, the first node can further receive the sixteenth information from the second node, where the sixteenth information is used to indicate the transmission resource corresponding to the channel information between the first node and the second node.

[0075] Based on this possible design, the first node can explicitly obtain the transmission resource corresponding to the channel information between the first node and the second node, thereby facilitating the first node to perform the sensing task related to the channel information.

[0076] In a thirteenth aspect, the present application provides a communication method, which can be performed by a second node, such as a first terminal node, and in the case where no special description is given, the "second node" in the present application can refer to the second node itself, a component (such as a processor, a radio frequency unit, a chip, or a chip system, etc.) in the second node, or a logic module or software capable of realizing all or part of the functions of the second node. The method comprises: the second node sending thirteenth information, the thirteenth information being used for a first transmission resource in which a first node transmits a first signal, and a second signal being transmitted on a second transmission resource, the second transmission resource and the first transmission resource partially overlapping, the first signal being used for the second node to obtain channel information, and the second signal not being used for the second node to obtain channel information.

[0077] Based on the method of the thirteenth aspect, when the first node transmits a signal (referred to as a first signal) for channel estimation on a transmission resource (which can be referred to as a first transmission resource), the first node can transmit another signal (which can be referred to as a second signal) on another transmission resource (which can be referred to as a second transmission resource) that partially overlaps with the transmission resource, that is, the transmission of the first signal is interfered by the second signal, so that after the attacker receives the first signal and the second signal that are superimposed together after being transmitted through the channel, the transmission resources overlap together, so that the attacker cannot distinguish which transmission resources transmit the first signal, which transmission resources transmit the second signal, and which transmission resources transmit the superimposed signal of the first signal and the second signal, and thus cannot analyze the received signal, or in other words, even if the attacker knows the transmission resources, analyzes the signal transmitted through the transmission resources, and obtains the channel information corresponding to each signal based on the analysis result, the attacker cannot obtain the relevant information of the target because the attacker cannot know the correspondence between different signals and channel information, and thus cannot obtain the privacy of the target by eavesdropping the signal.

[0078] In a possible design, the thirteenth information is further used for indicating the first signal. Based on this possible design, the second node can obtain the first signal to obtain the channel information according to the first signal.

[0079] In a possible design, the second node can further receive or send fourteenth information, the fourteenth information being used for indicating the second transmission resource. Based on this possible design, the second node can obtain the second transmission resource in multiple ways.

[0080] In a possible design, the fourteenth information is further used for indicating the second signal. Based on this possible design, the second node can send the second signal indicated by the fourteenth information, reducing the time delay and processing resources of the second node for generating the second signal.

[0081] In a possible design, the second node can further send, to the first node, fifteenth information used to indicate channel information between the first node and the second node, which is obtained by the second node according to the first signal.

[0082] Based on this possible design, the first node can obtain the channel information between the first node and the second node.

[0083] In a possible design, the second node can further send sixteenth information used to indicate a transmission resource corresponding to the channel information between the first node and the second node.

[0084] Based on this possible design, the first node can explicitly determine the transmission resource corresponding to the channel information between the first node and the second node, and thus facilitate the first node to perform a sensing task related to the channel information.

[0085] In a possible design, the second node can further receive the first signal on a resource that is not completely overlapped with the first transmission resource.

[0086] Based on this possible design, the second node can obtain a signal transmitted by the first signal through the channel, rather than an overlapped signal of the first signal and the second signal transmitted through the channel, to achieve the purpose of obtaining the channel information according to the first signal.

[0087] With reference to any of the preceding aspects, in a possible design, the first transmission resource includes transmission resources in multiple dimensions, and the second transmission resource includes transmission resources in multiple dimensions, and the partial overlap between the second transmission resource and the first transmission resource includes: the transmission resources in the multiple dimensions of the first transmission resource and the transmission resources in the multiple dimensions of the second transmission resource are partially overlapped; or, the transmission resources in some of the multiple dimensions of the first transmission resource and the transmission resources in some of the multiple dimensions of the second transmission resource are overlapped.

[0088] Based on this possible design, for different communication systems or different communication scenarios, the partial overlap between the first transmission resource and the second transmission resource can correspond to different resource overlaps, thereby improving the applicability of the present application.

[0089] With reference to any of the preceding aspects, in a possible design, the first transmission resource is a first time-frequency resource, and the second transmission resource is a second time-frequency resource; or, the first transmission resource is a first time-domain resource, and the second transmission resource is a second time-domain resource; or, the first transmission resource is a first frequency-domain resource, and the second transmission resource is a second frequency-domain resource.

[0090] Based on this possible design, for different communication systems or different communication scenarios, the first transmission resource and the second transmission resource can correspond to different resources, thereby improving the applicability of the present application.

[0091] In a possible design of any of the preceding aspects, the first signal is generated in the same manner as or in a different manner from the second signal.

[0092] Based on this possible design, the first signal and the second signal can be generated in the same manner or in different manners for different communication systems or different communication scenarios, which improves the applicability of the present application.

[0093] In a possible design of any of the preceding aspects, the first transmission resource includes a plurality of transmission units, and the first signal transmitted on the plurality of transmission units is variable. The first signal transmitted on the plurality of transmission units being variable includes one or more of the following: the content of the first signal transmitted on the plurality of transmission units is variable, the transmission power of the first signal transmitted on the plurality of transmission units is variable, and the transmission antenna of the first signal transmitted on the plurality of transmission units is variable.

[0094] Based on this possible design, each node can dynamically / flexibly change the configuration of transmitting the first signal each time, for example, the second node of the first aspect can dynamically / flexibly change the configuration of transmitting the first signal each time, and the configuration of transmitting the first signal can be the content of the first signal, the transmission antenna of the first signal, the transmission power, and the like. In this way, an attacker cannot obtain the transmission rule / characteristic of the first signal, and thus cannot analyze the received signal, thereby improving the target privacy.

[0095] In a possible design of any of the preceding aspects, the second transmission resource includes a plurality of transmission units, and the second signal transmitted on the plurality of transmission units is variable. The second signal transmitted on the plurality of transmission units being variable includes one or more of the following: the content of the second signal transmitted on the plurality of transmission units is variable, the transmission power of the second signal transmitted on the plurality of transmission units is variable, and the transmission antenna of the second signal transmitted on the plurality of transmission units is variable.

[0096] Based on this possible design, each node can dynamically / flexibly change the configuration of transmitting the second signal each time, for example, the second node of the second aspect can dynamically / flexibly change the configuration of transmitting the second signal each time, and the configuration of transmitting the second signal can be the content of the second signal, the transmission antenna of the second signal, the transmission power, and the like. In this way, an attacker cannot obtain the transmission rule / characteristic of the second signal, and thus cannot analyze the received signal, thereby improving the target privacy.

[0097] In a possible design of any of the preceding aspects, the second signal is a random signal.

[0098] In a fourteenth aspect, the present application provides a communication device for implementing transmission of a star flash signal, which can be applied to the first node, such as the first management node, of the first aspect or the fourth aspect or the seventh aspect or the tenth aspect or the twelfth aspect to implement the functions performed by the first node. The communication device can be the first node, a chip or a chip system or a system on chip, etc. of the first node. The communication device can perform the functions performed by the first node through hardware or perform corresponding software through hardware. The hardware or software includes one or more modules corresponding to the above functions.

[0099] For example, a module for sending first information, and a module for sending second information. The first information is used to indicate a first transmission resource of the second node for sending a first signal, and the second information is used to indicate a second transmission resource of the third node for sending a second signal. The second transmission resource partially overlaps with the first transmission resource. The first signal is used for the first node to obtain channel information, and the second signal is not used for the first node to obtain channel information.

[0100] Or for example, a module for receiving third information, a module for sending fourth information, and a module for sending a first signal on a first transmission resource. The third information is used to indicate a first transmission resource of the first node for sending a first signal, and the fourth information is used to indicate a second transmission resource of the third node for sending a second signal. The second transmission resource partially overlaps with the first transmission resource. The first signal is used for the second node to obtain channel information, and the second signal is not used for the second node to obtain channel information.

[0101] Or for example, a module for sending fifth information, a module for sending sixth information, and a module for sending a first signal on a first transmission resource. The fifth information is used to indicate a second transmission resource of the second node for sending a second signal, and the sixth information is used to indicate a third transmission resource of the third node for receiving the first signal. The second transmission resource partially overlaps with the first transmission resource. The first signal is used for the third node to obtain channel information, and the second signal is not used for the third node to obtain channel information.

[0102] Or for example, a module for sending ninth information, and a module for sending a first signal on a first transmission resource. The ninth information is used to indicate a first transmission resource of the first node for sending a first signal. The second transmission resource partially overlaps with the first transmission resource. The second transmission resource is used for the second node to send a second signal. The first signal is used for the second node to obtain channel information, and the second signal is not used for the second node to obtain channel information.

[0103] Or as: a module for receiving thirteenth information; a module for sending the first signal on the first transmission resource. Wherein the thirteenth information is used to indicate the first transmission resource of the first node sending the first signal, the second transmission resource and the first transmission resource partially overlap, the second transmission resource is used for the second node to send the second signal, the first signal is used for the second node to obtain channel information, and the second signal is not used for the second node to obtain channel information.

[0104] In the fifteenth aspect, the present application provides a communication device for realizing the transmission of the star flash signal. The communication device can be applied to the second node of the second aspect or the fifth aspect or the eighth aspect or the eleventh aspect or the thirteenth aspect, such as the first terminal node, to realize the functions performed by the second node. The communication device can be the second node, a chip or a chip system or a system on chip, etc. of the second node. The communication device can perform the functions performed by the second node through hardware, or can be realized through corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

[0105] Or as: a module for receiving first information; a module for sending the first signal on the first transmission resource. Wherein the first information is used to indicate the first transmission resource of the second node sending the first signal, the second transmission resource and the first transmission resource partially overlap, the second transmission resource is used for the third node to transmit the second signal, the first signal is used for the first node to obtain channel information, and the second signal is not used for the first node to obtain channel information.

[0106] Or as: a module for sending third information; a module for receiving the first signal on the resource that the first transmission resource and the second transmission resource do not completely overlap. Wherein the third information is used to indicate the first transmission resource of the first node sending the first signal, the second transmission resource and the first transmission resource partially overlap, the second transmission resource is used for the third node to send the second signal, the first signal is used for the second node to obtain channel information, and the second signal is not used for the second node to obtain channel information.

[0107] Or as: a module for receiving fifth information; a module for sending the second signal on the second transmission resource. Wherein the fifth information is used to indicate the second transmission resource of the second node sending the second signal, the second transmission resource and the first transmission resource partially overlap, the first transmission resource is used for the first node to send the first signal, the first signal is used for the third node to obtain channel information, and the second signal is not used for the third node to obtain channel information.

[0108] Or as: a module for receiving ninth information; a module for sending a second signal on a second transmission resource. Wherein the ninth information is used to indicate a first transmission resource in which the first node sends a first signal, the second transmission resource and the first transmission resource partially overlap, the first signal is used for the second node to obtain channel information, and the second signal is not used for the second node to obtain channel information.

[0109] Or as: a module for sending thirteenth information; a module for sending a second signal on a second transmission resource. Wherein the thirteenth information is used to indicate a first transmission resource in which the first node sends a first signal, the second transmission resource and the first transmission resource partially overlap, the first signal is used for the second node to obtain channel information, and the second signal is not used for the second node to obtain channel information.

[0110] In a sixteenth aspect, the present application provides a communication device for implementing transmission of a star flash signal. The communication device can be applied to the third node, such as the second terminal node, of the third aspect or the sixth aspect or the ninth aspect to implement the functions performed by the third node. The communication device can be the third node, a chip or a chip system or a system on chip, etc. of the third node. The communication device can perform the functions performed by the third node through hardware, or perform corresponding software through hardware. The hardware or software includes one or more modules corresponding to the above functions.

[0111] Or as: a module for receiving second information; a module for sending a second signal on a second transmission resource. Wherein the second information is used to indicate a second transmission resource in which the third node sends a second signal, the second transmission resource and the first transmission resource partially overlap, the first transmission resource is used for the second node to transmit a first signal, the first signal is used for the first node to obtain channel information, and the second signal is not used for the first node to obtain channel information.

[0112] Or as: a module for receiving fourth information; a module for sending a second signal on a second transmission resource. Wherein the fourth information is used to indicate a second transmission resource in which the third node sends a second signal, the second transmission resource and the first transmission resource partially overlap, the first transmission resource is used for the first node to send a first signal, the first signal is used for the second node to obtain channel information, and the second signal is not used for the second node to obtain channel information.

[0113] Or as: a module for receiving sixth information; a module for receiving a first signal on a third transmission resource. Wherein the sixth information is used to indicate a third transmission resource in which the third node receives a first signal, the first signal is transmitted by the first node on a first transmission resource, the first transmission resource and the second transmission resource partially overlap; the second transmission resource is used for the second node to transmit a second signal, the first signal is used for the third node to obtain channel information, and the second signal is not used for the third node to obtain channel information.

[0114] In a seventeenth aspect, an embodiment of the present application provides a communication apparatus, comprising one or more processors; and the one or more processors are configured to execute computer programs or instructions, and when the one or more processors execute the computer programs or instructions, the communication method according to any one of the first aspect to the thirteenth aspect is performed.

[0115] In a possible design, the communication apparatus further comprises one or more memories coupled to the one or more processors, and the one or more memories are configured to store the computer programs or instructions. In a possible implementation, the memory is located outside the communication apparatus. In another possible implementation, the memory is located inside the communication apparatus. In an embodiment of the present application, the processor and the memory can also be integrated into one device, that is, the processor and the memory can also be integrated together. In a possible implementation, the communication apparatus further comprises a transceiver, and the transceiver is configured to receive information and / or send information.

[0116] In a possible design, the communication apparatus further comprises one or more communication interfaces coupled to the one or more processors, and the one or more communication interfaces are configured to communicate with other modules outside the communication apparatus.

[0117] In an eighteenth aspect, an embodiment of the present application provides a communication apparatus, comprising an interface circuit and a logic circuit; the interface circuit is configured to input and / or output information; and the logic circuit is configured to perform the communication method according to any one of the first aspect to the thirteenth aspect, process and / or generate information according to the information.

[0118] In a nineteenth aspect, an embodiment of the present application provides a computer readable storage medium, which stores computer programs or instructions, and when the computer programs or instructions are executed on a computer, the communication method according to any one of the first aspect to the thirteenth aspect is performed.

[0119] In a twentieth aspect, an embodiment of the present application provides a computer program product comprising computer programs or instructions, and when the computer program product is executed on a computer, the communication method according to any one of the first aspect to the thirteenth aspect is performed.

[0120] In a twenty-first aspect, an embodiment of the present application provides a computer program, and when the computer program is executed on a computer, the communication method according to any one of the first aspect to the thirteenth aspect is performed.

[0121] In a twenty-second aspect, an embodiment of the present application provides a chip, comprising: a processor, the processor being coupled with a memory, the memory being configured to store programs or instructions, when the programs or instructions are executed by the processor, causing the communication method as any one of the first aspect to the thirteenth aspect to be executed.

[0122] In a twenty-third aspect, an embodiment of the present application provides a communication system, which can comprise a communication apparatus configured to execute the method as the first aspect or any possible design of the first aspect, a communication apparatus configured to execute the method as the second aspect or any possible design of the second aspect, and a communication apparatus configured to execute the method as the third aspect or any possible design of the third aspect; or the communication system can comprise a communication apparatus configured to execute the method as the fourth aspect or any possible design of the fourth aspect, a communication apparatus configured to execute the method as the fifth aspect or any possible design of the fifth aspect, and a communication apparatus configured to execute the method as the sixth aspect or any possible design of the sixth aspect; or the communication system can comprise a communication apparatus configured to execute the method as the seventh aspect or any possible design of the seventh aspect, a communication apparatus configured to execute the method as the eighth aspect or any possible design of the eighth aspect, and a communication apparatus configured to execute the method as the ninth aspect or any possible design of the ninth aspect; or the communication system can comprise a communication apparatus configured to execute the method as the tenth aspect or any possible design of the tenth aspect, a communication apparatus configured to execute the method as the eleventh aspect or any possible design of the eleventh aspect; or the communication system can comprise a communication apparatus configured to execute the method as the twelfth aspect or any possible design of the twelfth aspect, and a communication apparatus configured to execute the method as the thirteenth aspect or any possible design of the thirteenth aspect.

[0123] The technical effects brought by any one of the fourteenth aspect to the twenty-third aspect can refer to the technical effects brought by any one of the first aspect to the thirteenth aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0124] FIG. 1 is a schematic diagram of a sensing scenario according to an embodiment of the present application;

[0125] FIG. 2 is a schematic diagram of a sensing scenario according to an embodiment of the present application;

[0126] FIG. 3 is a schematic diagram of an architecture of a communication system according to an embodiment of the present application;

[0127] FIG. 4 is a schematic diagram of an architecture of another communication system according to an embodiment of the present application;

[0128] FIG. 5 is a schematic diagram of a flow of a communication method according to an embodiment of the present application;

[0129] FIG. 6 is a schematic diagram of a first transmission resource and a second transmission resource according to an embodiment of the present application;

[0130] FIG. 7 is a schematic diagram of a first transmission resource and a second transmission resource according to an embodiment of the present application;

[0131] FIG. 8 is a schematic diagram of a first transmission resource and a second transmission resource according to an embodiment of the present application;

[0132] FIG. 9 is a schematic diagram of a first transmission resource and a second transmission resource according to an embodiment of the present application;

[0133] FIG. 10 is a flowchart of a communication method according to an embodiment of the present application;

[0134] FIG. 11 is a flowchart of a communication method according to an embodiment of the present application;

[0135] FIG. 12 is a schematic diagram of a first transmission resource and a second transmission resource according to an embodiment of the present application;

[0136] FIG. 13 is a flowchart of a communication method according to an embodiment of the present application;

[0137] FIG. 14 is a schematic diagram of a first transmission resource and a second transmission resource according to an embodiment of the present application;

[0138] FIG. 15 is a flowchart of a communication method according to an embodiment of the present application;

[0139] FIG. 16 is a schematic diagram of a chip according to an embodiment of the present application;

[0140] FIG. 17 is a schematic diagram of another chip according to an embodiment of the present application;

[0141] FIG. 18 is a schematic diagram of yet another chip according to an embodiment of the present application;

[0142] FIG. 19 is a schematic diagram of yet another chip according to an embodiment of the present application;

[0143] FIG. 20 is a schematic diagram of a chip module framework according to an embodiment of the present application;

[0144] FIG. 21 is a schematic diagram of another chip module framework according to an embodiment of the present application;

[0145] FIG. 22 is a schematic diagram of a software static policy framework according to an embodiment of the present application;

[0146] FIG. 23 is a schematic diagram of another software static policy framework according to an embodiment of the present application;

[0147] FIG. 24 is a schematic diagram of a hardware arbitration time division (PTA) strategy according to an embodiment of the present application;

[0148] FIG. 25 is a schematic diagram of a structure of a communication apparatus according to an embodiment of the present application;

[0149] FIG. 26 is a schematic diagram of a structure of a communication apparatus according to an embodiment of the present application;

[0150] FIG. 27 is a schematic diagram of a structure of a communication apparatus according to an embodiment of the present application;

[0151] FIG. 28 is a schematic diagram of a structure of a communication apparatus according to an embodiment of the present application. DETAILED DESCRIPTION

[0152] Before introducing embodiments of the present application, some technical terms related to the embodiments of the present application are explained. It should be noted that the following explanations are provided to make the embodiments of the present application more easily understood, and should not be regarded as limiting the scope of protection claimed by the embodiments of the present application.

[0153] In the evolution of the fifth generation (5G) communication technology to future communication technology, integrated sensing and communication (ISAC) technology, also known as sensing and communication integration technology, is considered one of the key technologies that can expand the business capabilities of mobile communication networks. The sensing and communication integration technology supports both communication technology and wireless sensing technology, and its core idea is to add sensing capabilities on the mobile communication network to build the ability to detect, track and image targets, so that the two capabilities of communication and sensing are integrated in one network, achieving harmonious coexistence, and even mutual benefit.

[0154] Among them, wireless sensing technology refers to inferring and sensing the surrounding environment by analyzing the sensing signals "modulated" by various obstacles, and then determining the characteristics of the target (such as objects, animals, people), including the distance, direction, speed, motion, behavior, etc. of the target.

[0155] Among them, the sensing signal refers to the signal used to sense (or detect) the target. The sensing signal is also called a probing signal, a linear frequency modulation signal, a radar signal, a radar sensing signal, a radar probing signal, an environmental sensing signal, etc. The sensing signal can be a pulse signal or a signal in a wireless communication system.

[0156] The target can be various tangible objects in the environment that can reflect electromagnetic waves, such as landforms, forests, buildings, and the like, and can also include vehicles, unmanned aerial vehicles, pedestrians, terminal devices, and the like. In this application, the target can also be referred to as a perceived target, a target object, a detected target, a perceived object, a detected object, or a perceived device, and the like, and the embodiments of the present application are not limited.

[0157] In the case of transmitting a sensing signal at the sending end, the open wireless signal refers to a signal known to each device in the wireless communication system, such as a protocol predefined preamble signal. The receiving end can perform signal estimation based on the received "modulated" sensing signal and the sensing signal that has not been transmitted through the channel to obtain the channel information between the sending end and the receiving end. Analyzing the channel information can obtain the location, trajectory, and the like of the target within the sensing range of the sending end. However, since the sensing signal is open, the aforementioned privacy information of the target is easily obtained by the attacker, causing the problem of target privacy information leakage.

[0158] For example, FIG. 1 is a sensing scenario provided by an embodiment of the present application, as shown in FIG. 1, the sensing scenario shown in FIG. 1 includes a terminal node, a management node, a target, and an attacker. Taking the sensing signal as a protocol predefined preamble signal as an example, the terminal node in FIG. 1 transmits the preamble signal, and the management node in FIG. 1 can receive the preamble signal transmitted through the channel. Channel estimation is performed based on the preamble signal transmitted through the channel and the preamble signal that has not been transmitted through the channel (i.e., the protocol predefined preamble signal), and the channel information between the terminal node and the management node is obtained. Further analysis of the channel information can obtain the location, trajectory, and the like of the target in FIG. 1. In addition, since the preamble signal is open, the attacker in FIG. 1 can also perform channel estimation based on the received preamble signal transmitted through the channel and the preamble signal that has not been transmitted through the channel, thereby obtaining the location, trajectory, and the like of the target in FIG. 1, causing the problem of target privacy information leakage in FIG. 1.

[0159] The preamble signal is mainly used for synchronization, channel estimation, signal detection, and the like in wireless communication. The preamble signal is a special signal sequence transmitted in the wireless communication system, and is usually located at the beginning of the data packet.

[0160] In an example, the sending end transmits a variable sensing signal, and the variable sensing signal is unknown to the attacker, to solve the problem of target privacy information leakage. For example, the sending end transmits different sensing signals at different times, so that the attacker cannot obtain inaccurate channel information between the sending end and the receiving end by analyzing the received sensing signal transmitted through the channel at different times, thereby solving the problem of target privacy leakage.

[0161] For example, the sensing range of the transmitting end includes target A, which is a stationary object. The transmitting end scrambles the sensing signal so that it can send different sensing signals at different times. Since the sensing signals are different at different times, the sensing signals received by the attacker through the channel at different times are also different. By processing the sensing signals received at different times, the attacker can easily misjudge that there are moving objects in the current environment and obtain the wrong information that target A is in motion, thereby solving the problem of privacy leakage of target A.

[0162] However, attackers can use multi-antenna joint processing to eliminate the sensing signals sent by the transmitter as much as possible. This allows attackers to obtain the target's location, trajectory, and other private information based on the results of multi-antenna joint processing, even without acquiring the sensing signals sent by the transmitter that are not transmitted through the channel. This results in the exposure of the target's private information.

[0163] Signals transmitted through a channel are usually affected by the transmission channel and noise. Therefore, the influence of noise on the channel estimation result needs to be considered during the channel estimation process. However, the focus of this application is not to optimize the channel estimation result, but to avoid the exposure of target privacy. In order to better reflect the core of the embodiments of this application, the influence of noise on channel estimation can be ignored in the embodiments of this application.

[0164] For example, Figure 2 illustrates a sensing scenario provided in an embodiment of this application. As shown in Figure 2, the sensing scenario includes a terminal node, a management node, a target, and an attacker A. The management node and the terminal node are each equipped with one antenna, while the attacker is equipped with antenna 1 and antenna 2. The terminal node in Figure 2 transmits a sensing signal X for sensing the target. T And the perceived signal X T As time changes, at time T1, the terminal node in Figure 2 sends a sensing signal X1, and at time T1, attacker A's antenna 1 in Figure 2 can receive the signal via the channel. Transmitted sensing signal Y 11 Sensing signals Channel For the channel between the terminal node and antenna 1, at time T1, attacker A's antenna 2 in Figure 2 can receive signals via the channel. Transmitted sensing signal Y 12 Channel For the channel between the terminal node and antenna 2, sense the signal. The attacker receives Y at time T1 11 and Y 12 Division can yield Divide by The attacker, based on the value, Divide by The value of the target can obtain the behavior and other privacy information of the target, causing the privacy information of the target to be exposed.

[0165] To avoid the problem of target privacy exposure, an embodiment of the present application provides a communication method, in which, when a node transmits a signal (referred to as a first signal) for channel estimation on a transmission resource (referred to as a first transmission resource), the node can transmit another signal (referred to as a second signal) on another transmission resource (referred to as a second transmission resource) partially overlapping with the transmission resource, that is, the transmission of the first signal is interfered by the second signal, so that, after the first signal and the second signal superimposed together after being transmitted through the channel, the attacker cannot distinguish which transmission resource transmits the first signal, which transmission resource transmits the second signal, and which transmission resource transmits the superimposed signal of the first signal and the second signal due to the overlapping of the transmission resources together, so the attacker cannot analyze the received signal, or in other words, even if the attacker knows the transmission resource, analyzes the signal transmitted through the transmission resource, and performs channel estimation based on the analysis result to obtain the channel information corresponding to each signal, but since the attacker cannot know the correspondence between different signals and channel information, the attacker cannot know the relevant information of the target, and cannot obtain the privacy of the target by eavesdropping the signal.

[0166] Among them, the present application can be applied to different communication systems, such as can be applied to a communication system including two nodes, can also be applied to a communication system including three nodes or more nodes, without limitation, the implementation of the present application is different for different system architectures, the specific implementation can be referred to the following communication method.

[0167] The technical solutions of the embodiments of the present application can be applied to various communication systems, which can be a third generation partnership project (3GPP) communication system, for example, a long term evolution (LTE) system, a 4th generation (4G) system, a 5th generation (5G) system, a system of mixed networking of LTE and 5G, a communication and sensing integrated system, a non-terrestrial network (NTN), a device-to-device (D2D) communication system, a vehicle to everything (V2X) communication system, a machine-type communication (MTC) system, an internet of things (IoT) system, or other future communication systems. The communication system can also be a non-3GPP communication system, which is not limited.

[0168] The present application supports a spark link / nearlink protocol, or the present application supports an IEEE protocol, such as an IEEE 802.11be / WiFi7 / EHT (extremely high throughput) protocol, an IEEE 802.11bn / WiFi 8 / UHR (ultra high reliability) protocol, an IEEE IMMW (Integrated mmWave) protocol, an IEEE 802.15.4ab / UWB (ultra wideband) protocol, and an IEEE 802.11bf / Sensing protocol.

[0169] The technical solutions of the embodiments of the present application can also be applied to a wireless short-range communication system and a wireless communication system supporting longer distance transmission (such as 1-18 km, more than 18 km) (such as a future spark wireless communication system). The wireless short-range communication system can include a wireless short-range communication technology (such as spark 1.0 technology) with advantages of ultra-low latency, ultra-high reliability, precise synchronization, etc., and is suitable for applications in scenarios such as intelligent vehicles, smart homes, intelligent terminals, and intelligent manufacturing. For example, applications in the intelligent vehicle scenario include immersive in-vehicle sound field & noise reduction, wireless interactive screen projection, and 360-degree panoramic view, which can achieve immersive interactive experience and improve vehicle safety.

[0170] The wireless communication system supporting longer distance transmission (such as 1-18 km) mainly includes future Starlink wireless communication systems, such as Starlink 2.0 wireless communication system, Starlink 3.0 wireless communication system, etc. The wireless communication system is not only suitable for communication scenarios with low delay requirement, such as the above vehicle-mounted communication, industrial control, etc., but also can be applied to communication scenarios with no high delay requirement.

[0171] Among them, the communication system applicable to the present application is only an example, and the communication system applicable to the present application is not limited thereto. The communication system provided by the present application does not cause any limitation on the scheme of the present application. It is uniformly explained here that the following will not be described in detail.

[0172] FIG. 3 is a schematic diagram of a communication system architecture provided by an embodiment of the present application. As shown in FIG. 3, the communication system can include a first node, a second node, and a third node. The first node, the second node, and the third node in FIG. 3 can correspond to different devices under different communication systems.

[0173] For example, under the Starlink system, the first node in FIG. 3 can be a perception initiation node, the second node in FIG. 3 can be a first perception response node, and the third node in FIG. 3 can be a second perception response node. The perception initiation node is a device for performing a perception task, and the perception initiation node can be a management node (G node for short) or a terminal node (T node for short). The perception response node is a device for performing a perception task in cooperation with the perception initiation node, and the perception response node can be a management node or a terminal node. For example, the first node in FIG. 3 can be a management node, the second node in FIG. 3 can be a first terminal node, and the third node in FIG. 3 can be a second terminal node.

[0174] For example, under the Starlink system, the first node in FIG. 3 can be a first perception response node, the second node in FIG. 3 can be a perception initiation node, and the third node in FIG. 3 can be a second perception response node. For example, the first node in FIG. 3 can be a management node, the second node in FIG. 3 can be a first terminal node, and the third node in FIG. 3 can be a second terminal node.

[0175] For example, in a wireless fidelity (WiFi) system, the first node in FIG. 3 can be an access point (AP), the second node in FIG. 3 can be a first station (STA), and the third node in FIG. 3 can be a second STA; or the first node in FIG. 3 can be a first AP, the second node in FIG. 3 can be a STA, and the third node in FIG. 3 can be a second AP. The AP can refer to a device for a WLAN user terminal to access a network, and the STA can refer to a terminal device in a WLAN, such as a network card of a notebook computer or a wireless module of a mobile phone.

[0176] FIG. 4 is a schematic diagram of another communication system architecture provided by an embodiment of the present application. As shown in FIG. 4, the communication system can include a first node and a second node. The first node and the second node in FIG. 4 can correspond to different devices in different communication systems.

[0177] For example, in a star flash system, the first node in FIG. 4 can be a sensing initiating node, and the second node in FIG. 4 can be a sensing responding node. For example, the first node in FIG. 4 can be a management node, and the second node in FIG. 4 can be a terminal node; or the first node in FIG. 4 can be a terminal node, and the second node in FIG. 4 can be a management node.

[0178] For example, in a star flash system, the first node in FIG. 4 can be a sensing initiating node, and the second node in FIG. 4 can be a sensing responding node. For example, the first node in FIG. 4 can be a management node, and the second node in FIG. 4 can be a terminal node; or the first node in FIG. 4 can be a terminal node, and the second node in FIG. 4 can be a management node.

[0179] For example, in a WiFi system, the first node in FIG. 4 can be an AP, and the second node in FIG. 4 can be a STA; or the first node in FIG. 4 can be a STA, and the second node in FIG. 4 can be an AP.

[0180] The management node can be a node in a wireless short-range communication system that has a resource scheduling function and sends resource management information and / or data scheduling information.

[0181] Exemplarily, the management node (G node) is located at the network side of the above communication system, and is used to help the terminal node to realize wireless access, and is a device with wireless transceiving function or a chip or chip system which can be arranged in the device. The management node includes but is not limited to: a network device, an access network device, an access network node, a radio access network (RAN) node, a RAN entity or an access node, a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP or transmission point, TP), a next generation NodeB (gNB), a next generation base station in a future mobile communication system, a base station in a future mobile communication system, or an access node (AP) in a wireless fidelity (Wi-Fi) system, etc. The management node can be a macro base station, a micro base station or an indoor station, a relay node or a donor node, an open radio access network (ORAN), or a wireless controller in a centralized radio access network (CRAN) scenario. The management node can also be one or a group (including multiple antenna panels) of antenna panels of a base station in the 5th generation (5G), or can also be a network node constituting a gNB, a TRP or a TP or a transmission measurement function (TMF), such as a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), a road side unit (RSU) with base station function. Optionally, the management node can also be a server, a wearable device, a vehicle or a vehicle-mounted device, etc. For example, the management node in vehicle to everything (V2X) technology can be an RSU. Optionally, the management node can also be a control unit in unmanned driving, a central controller in a smart factory or a smart home, a handheld or automatic control remote sensing of a flight device, etc. Optionally, the management node can also be a control device such as a central control or a control panel, such as a controller of an unmanned aerial vehicle, a control unit in industrial control.All or part of the functions of the management node in the present application can also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform, such as a cloud platform. The management node in the present application can also be a logical node, a logical module or software capable of implementing all or part of the functions of the management node.

[0182] The form of the management node in the embodiments of the present application is not limited, and the device for implementing the functions of the management node can be the management node; or can be a device capable of supporting the management node to implement the functions, such as a chip system. The device can be installed in the management node or used in matching with the management node.

[0183] The terminal node described above can be a node that receives control information such as resource management information and / or data scheduling information transmitted by the management node in the wireless short-range communication system, and performs data transmission or data reception according to the control information such as the resource management information and / or the data scheduling information. For ease of description, the short-range protocol in the wireless short-range communication system is referred to as the StarFlash protocol in the present disclosure.

[0184] Exemplarily, a terminal node (T-node) is an apparatus, device, module, chip or chip system with transceiving function, which can also be referred to as a terminal device, a user equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station (MS), a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device. The terminal node in the embodiments of the present application can be a mobile phone, a cellular phone, a smart phone, a Pad, a mouse, a remote controller, a stylus, a set-top box, a router, a camera, a screen, a smart screen, a wireless data card, a personal digital assistant (PDA), a wireless modem, a handset, a laptop computer, a smart watch, a smart bracelet, a wireless earphone, an electronic conference whiteboard, a machine type communication (MTC) terminal, a computer with wireless transceiving function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a smart home device (e.g., a refrigerator, a television, an air conditioner, a washing machine, an electric rice cooker, a table lamp, an electric meter, etc.), a smart robot, a mechanical arm, a workshop device, a wireless terminal in a self-driving vehicle, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical treatment, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, a vehicle-mounted terminal, a vehicle-mounted screen, a vehicle-mounted audio, a vehicle key, a road side unit (RSU) with terminal function, etc., a flight device (e.g., a smart robot, a hot air balloon, a drone, an airplane), etc. The terminal node of the present application can also be a vehicle-mounted module, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit built in a vehicle as one or more components or units. The terminal node can also be other devices with terminal function, for example, the terminal node can also be a device in device-to-device (D2D) communication that assumes a terminal function.

[0185] The embodiments of the present application do not limit the device form of the terminal, and the device for implementing the function of the terminal node can be the terminal node; or can be a device capable of supporting the terminal node to implement the function, such as a chip system. The device can be installed in the terminal node or used in matching with the terminal node. In the embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices.

[0186] In the star flash protocol corresponding to the star flash technology, there is uplink transmission and downlink transmission between the G node and the T node. The uplink transmission is implemented through a T link, and the T link is a link between the T node and the G node, and can also be referred to as an uplink; the downlink transmission is implemented through a G link, and the G link is a link between the G node and the T node, and can also be referred to as a downlink.

[0187] In the embodiments of the present application, the communication device has the capability of wireless communication, and can be configured with multiple antennas, which can include at least one transmitting antenna for transmitting signals and at least one receiving antenna for receiving signals. In addition, each communication device additionally includes a transmitter chain and a receiver chain, and those skilled in the art can understand that they can include multiple components (such as processors, modulators, multiplexers, demodulators, demultiplexers, or antennas, etc.) related to signal transmission and reception. The communication device can be a network device or a terminal device, which is not limited.

[0188] It should be pointed out that the scheme in the embodiments of the present application can also be applied to other communication systems, and the corresponding names can also be replaced by the names of corresponding functions in other communication systems.

[0189] It should be noted that the system described in the embodiments of the present application is for more clearly illustrating the technical solutions of the embodiments of the present application, and does not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, with the evolution of network architecture and the appearance of new business scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0190] The communication method provided by the embodiments of the present application will be described below by taking the interaction between communication devices in the communication system shown in FIG. 3 or FIG. 4 as an example. It should be noted that in the following embodiments of the present application, the names of messages between communication devices, the names of parameters, or the names of information, etc. are only examples, and in other embodiments, they can also be other names, and the method provided by the present application is not limited thereto.

[0191] It can be understood that, in the embodiments of the present application, each communication device can perform some or all of the steps in the embodiments of the present application, and these steps or operations are only examples, and the embodiments of the present application can also perform other operations or variations of various operations. In addition, each step can be performed in a different order from the embodiments of the present application, and it is possible that not all operations in the embodiments of the present application are performed.

[0192] It can be understood that, in the embodiments of the present application, each communication device can perform some or all of the steps in the embodiments of the present application, and these steps or operations are only examples, and the embodiments of the present application can also perform other operations or variations of various operations. In addition, each step can be performed in a different order from the embodiments of the present application, and it is possible that not all operations in the embodiments of the present application are performed.

[0193] In the embodiments of the present application, the number of nodes for sending the second signal is not limited. For example, one or more nodes for sending the second signal can exist in the following embodiments one to five. Taking embodiment one as an example, as a possible implementation, one node for sending the second signal, i.e., the third node, exists in the communication system shown in FIG. 3; as another possible implementation, in addition to the third node, other nodes for sending the second signal exist in the communication system shown in FIG. 3.

[0194] Optionally, when multiple nodes for sending the second signal exist, the second signals sent by the multiple nodes for sending the second signal can be the same or different, which is not limited.

[0195] The communication method provided by the embodiments of the present application will be described below in combination with the communication system shown in FIG. 3.

[0196] Embodiment one:

[0197] The communication method provided by the embodiments of the present application will be described below in combination with the communication system shown in FIG. 3.

[0198] S501: The first node sends first information to the second node, and the second node receives the first information from the first node.

[0199] The first information can be used to indicate a first transmission resource for sending a first signal, and the first signal can be used to obtain channel information.

[0200] For example, in the corresponding embodiment of FIG. 5, the first information can be used to indicate a first transmission resource in which the second node transmits a first signal. The first signal can be used for the first node to obtain channel information, which is used to characterize a state of a channel between the second node and the first node. In this application, the type of the channel information is not limited, for example, the channel information can be channel state information (CSI), or channel frequency response (CFR), or channel impulse response (CIR), etc.

[0201] Optionally, the channel information obtained based on the first signal can be used for target awareness, at this time, the first signal can be replaced by a description of an awareness signal, which can be a reference signal. Specifically, the awareness signal can refer to the above-mentioned related description, which is not repeated here.

[0202] In this application, the first transmission resource in which the first signal is transmitted can be understood as the first transmission resource in which the first signal is transmitted, or the first transmission resource used to carry the first signal, or the first transmission resource used to transmit the first signal, etc., which is not limited. Optionally, the first transmission resource can include time domain resource, frequency domain resource or space domain resource, etc.

[0203] In this application, the first information can directly indicate the first transmission resource, or indirectly indicate the first transmission resource. In the case of the first information, taking the first transmission resource as the first time-frequency resource as an example, the frequency point, the radio frame index can be contained in the first information to directly indicate the first transmission resource; or the index of the frequency band, the starting time of the time slot, etc. can be contained in the first information to indirectly indicate the first transmission resource.

[0204] Optionally, in order to perform channel estimation to obtain the channel information corresponding to the first signal, the first node also needs to obtain the first signal and indicate the first signal to the second node, so that the second node transmits the first signal through the first transmission resource based on the indication of the first node, so that after the first node receives the signal transmitted through the channel after the first signal, the channel estimation is performed based on the received signal and the first signal to obtain the channel information H.

[0205] In an example, the first node can indicate the first signal to the second node by the first information. That is, the first information can also be used to indicate the first signal, so that the first node can obtain the first signal and further obtain the channel information of the channel experienced by the first signal according to the first signal. In this application, the first information can directly or indirectly indicate the first signal. In the case of directly indicating the first signal, the first information can contain the first signal or contain the bit sequence corresponding to the first signal; in the case of indirectly indicating the first signal, the first information can contain the generation mode of the first signal, or the first information can contain the index of the reference signal, the reference signal indicated by the index of the reference signal is the first signal, and the index of the reference signal is used to indicate the reference signal in the reference signal resource pool, and the reference signal in the reference signal resource pool is predefined by the protocol or determined by the first node and the second node in advance.

[0206] In another example, the first node can indicate the first signal to the second node by other information different from the first information, such as first indication information. Specifically, the way in which the first node indicates the first signal to the second node by the other information is the same as the way in which the first node indicates the first signal to the second node by the first information, which will not be described herein.

[0207] In this application, the signaling / message carrying information is not limited. Taking the first information as an example, the first information can be contained in a radio frame, or contained in control information, or contained in high-layer signaling. In this application, the radio frame can be a perception measurement request frame or a perception measurement response frame. The control information can be downlink control information (DCI) or link control information sent by a node. The high-layer signaling can be radio resource control (RRC) signaling. When the signaling is the signaling in the starlink system, the signaling can specifically refer to the high-layer signaling. Or the signaling can be the signaling of the basic application layer of the starlink system, the signaling of the basic service layer, the signaling of the data link layer, the control signaling, or the signaling transmitted by the layer above the physical layer. In some implementation modes, the signaling of the starlink system is an extended resource control signaling, such as XRC signaling.

[0208] S502: The first node sends second information to the third node, and the third node receives the second information from the first node.

[0209] The second information can be used to indicate the second transmission resource for sending the second signal, and the second signal can not be used to obtain the channel information.

[0210] For example, in the corresponding embodiment of FIG. 5, the second information is used to indicate the second transmission resource in which the third node transmits the second signal, and the second signal can not be used for the first node to obtain the channel information.

[0211] Optionally, the second signal is not used to obtain the channel information, and in this case, the second signal can be alternatively described as a random signal.

[0212] Optionally, the second signal can be a randomly generated signal, for example, the second signal can be a signal generated by a Zadoff-Chu sequence (ZC sequence for short), and the root value u of the ZC sequence is randomly changed; or the second signal can be a signal generated by a pseudo-random sequence, and the pseudo-random sequence can be a Gold sequence or a maximum length linear feedback shift register sequence (m sequence for short); or the second signal can be a signal modulated by a random bit stream.

[0213] Optionally, the generation manner of the second signal and the generation manner of the first signal can be different. For example, the second signal can be a signal generated by a ZC sequence, and the first signal can be a signal generated by a pseudo-random sequence; or the second signal can be a signal generated by a ZC sequence, and the first signal can be any signal in a protocol predefined reference signal resource pool.

[0214] Optionally, the generation manner of the second signal and the generation manner of the first signal can be the same. For example, the first signal can be a signal generated by a first ZC sequence, and the second signal can be a signal generated by a second ZC sequence, and the root value u1 of the first ZC sequence and the root value u2 of the second ZC sequence can be different; or the second signal can be a signal in a protocol predefined reference signal resource pool, and the second signal can be another signal in the protocol predefined reference signal resource pool.

[0215] In this application, any node (such as the third node) transmits the second signal in order to interfere with the attacker to obtain the information of the channel experienced by the first signal, so that the attacker cannot obtain the privacy information of the target, and therefore the second signal can be alternatively described as an interference signal or a random signal, and the three can be arbitrarily replaced. In this case, the subsequent embodiments will not be described again. In addition, the second signal / interference signal / random signal can also have other names, and the name thereof is not limited in this application.

[0216] In this application, the second information can directly indicate a specific second transmission resource, or can indirectly indicate the second transmission resource, and the related description can refer to the description of the first information indicating the first transmission resource, which will not be described again here.

[0217] In an example, the plurality of information in the present application can be carried in one signaling / message. For example, the first information and the second information in the first embodiment can be carried in one signaling / message. For example, the first information and the second information can be carried in the signaling / message sent by the first node to the two nodes.

[0218] In another example, the plurality of information in the present application can be carried in different signaling / messages. For example, the first information and the second information in the first embodiment can be carried in different signaling / messages. For example, the first information can be carried in the sensing measurement request frame, and the second information can be carried in the DCI.

[0219] Optionally, the first node can allocate the second signal to the third node, so that the third node transmits the second signal allocated by the first node. Therefore, the third node needs to obtain the second signal allocated by the first node.

[0220] In an example, the first node can indicate the second signal to the third node through the second information. That is, the second information can also be used to indicate the second signal, so that the third node obtains the second signal allocated by the first node. In the present application, the second information can directly or indirectly indicate the second signal. In the case of directly indicating the second signal, the second information can contain the second signal. In the case of indirectly indicating the first signal, the second information can contain the generation mode of the second signal, or the second information can contain the index of the random signal or the index of the interference signal. The random signal indicated by the index of the random signal or the interference signal indicated by the index of the interference signal is the second signal. The index of the random signal / interference signal is used to indicate the signal in the random signal resource pool or the interference signal resource pool. The signal in the random signal resource pool or the interference signal resource pool is predefined by the protocol or determined by the first node and the second node in advance.

[0221] In another example, the first node can indicate the second signal to the third node through other information different from the first information, such as second indication information. Specifically, the way in which the first node indicates the second signal to the third node through the other information is the same as the way in which the first node indicates the second signal to the third node through the second information, which will not be described herein.

[0222] In the present application, the second transmission resource for transmitting the second signal can be understood as the second transmission resource for transmitting the second signal, or the second transmission resource for carrying the second signal, or the second transmission resource for transmitting / transmitting the second signal, etc., which will not be limited. Optionally, the second transmission resource can include time domain resource, frequency domain resource, or space domain resource, etc.

[0223] In the present application, the second transmission resource and the first transmission resource partially overlap.

[0224] Optionally, in this application, the transmission resource (such as the first transmission resource, the second transmission resource, the third transmission resource) can include one or more of the time domain resource, the frequency domain resource, and the space domain resource. The space domain resource can be understood as a space resource for transmitting a signal. In wireless communication, the space resource can be divided by using the space division multiplexing (SDM) technology. For example, the space can be divided into different channels by using the space division multiplexing technology, so that different channels can be used to transmit multiple signals in the same time period and in the same frequency band. The time domain resource can be understood as a time resource for transmitting a signal. In wireless communication, the time resource can be represented in units of frames, subframes, time slots, symbols, and the like. The frequency domain resource can be understood as a frequency resource for transmitting a signal. For example, a subcarrier is a basic unit of the frequency domain resource.

[0225] Optionally, the transmission resource can include transmission resources in Y dimensions, where Y is an integer greater than 1, i.e., the transmission resource can include transmission resources in multiple dimensions. For example, the transmission resources in Y dimensions can be transmission resources in at least two of the following dimensions: the space dimension (i.e., the space domain resource), the time dimension (i.e., the time domain resource), and the frequency dimension (i.e., the frequency domain resource). For example, the transmission resource can include the space domain resource, the time domain resource, and the frequency domain resource, or the transmission resource can include any two of the space domain resource, the time domain resource, and the frequency domain resource.

[0226] Optionally, in the case where the transmission resource includes transmission resources in multiple dimensions, the second transmission resource and the first transmission resource partially overlap can include any of the following:

[0227] (1) The first transmission resource and the second transmission resource partially overlap in the transmission resources in multiple dimensions. This can be understood as the transmission resources in any dimension of the first transmission resource and the second transmission resource both partially overlap. There are the following ways:

[0228] Optionally, in the case where the transmission resource includes transmission resources in multiple dimensions, the second transmission resource and the first transmission resource partially overlap can include any of the following:

[0229] For example, the transmission resources in multiple dimensions can include the time domain resource and the frequency domain resource. The first transmission resource can include the first time domain resource and the first frequency domain resource. The second transmission resource can include the second time domain resource and the second frequency domain resource. The second time domain resource can be a part of the first time domain resource, and the second frequency domain resource can be a part of the first frequency domain resource.

[0230] Manner two: the transmission resource of the second transmission resource in any dimension of the multiple dimensions and the transmission resource of the first transmission resource in any dimension of the multiple dimensions both exist partial overlap.

[0231] For example, the transmission resource in multiple dimensions can be transmission resource including time domain resource and frequency domain resource, the first transmission resource can include first time domain resource and first frequency domain resource, and the second transmission resource can include second time domain resource and second frequency domain resource, wherein the second time domain resource and the first time domain resource exist partial overlap resource, and the second frequency domain resource and the first frequency domain resource exist partial overlap resource.

[0232] For example, FIG. 6 is a schematic diagram of the first transmission resource and the second transmission resource provided by the embodiment of the application, as shown in (a) of FIG. 6, the second transmission resource is part of the first transmission resource, and the overlap resource of the second transmission resource and the first transmission resource is the second transmission resource; as shown in (b) of FIG. 6, the time domain resource in the second transmission resource and the time domain resource in the first transmission resource exist partial overlap resource, the overlap resource is t2-t3, and the frequency domain resource in the second transmission resource and the frequency domain resource in the first transmission resource exist partial overlap resource, the overlap resource is f1-f2.

[0233] (2) The transmission resource of the first transmission resource in part of the multiple dimensions and the transmission resource of the second transmission resource in part of the multiple dimensions overlap, and there are the following manners:

[0234] Manner one: the transmission resource of the first transmission resource and the second transmission resource in part of the multiple dimensions exists partial overlap, and the transmission resource of the first transmission resource and the second transmission resource in another part of the multiple dimensions completely overlaps.

[0235] For example, FIG. 7 is a schematic diagram of the first transmission resource and the second transmission resource provided by the embodiment of the application, as shown in (a) of FIG. 7, the frequency domain resource in the second transmission resource and the frequency domain resource in the first transmission resource are both f1-f2, that is, the frequency domain resource in the second transmission resource and the frequency domain resource in the first transmission resource completely overlaps, the time domain resource in the second transmission resource is t2-t3, the time domain resource in the first transmission resource is t1-t3, t1<t2<t3, and the time domain resource in the second transmission resource and the time domain resource in the first transmission resource exist partial overlap, the overlap resource is t2-t3.

[0236] As shown in (b) of FIG. 7, the time domain resource in the second transmission resource and the time domain resource in the first transmission resource are both t1-t2, that is, the time domain resource in the second transmission resource and the time resource in the first transmission resource completely overlap, the frequency domain resource in the second transmission resource is f1-f2, the frequency domain resource in the first transmission resource is f1-f3, f1<f2<f3, and the frequency domain resource in the second transmission resource and the frequency domain resource in the first transmission resource partially overlap, and the overlapping resource is f1-f2.

[0237] Mode two: the transmission resources of the first transmission resource and the second transmission resource completely overlap in a part of the multiple dimensions, and the transmission resources of the first transmission resource and the second transmission resource do not overlap in another part of the multiple dimensions.

[0238] For example, FIG. 8 is a schematic diagram of the first transmission resource and the second transmission resource provided by an embodiment of the present application, as shown in (a) of FIG. 8, the frequency domain resource in the second transmission resource and the frequency domain resource in the first transmission resource are both f1-f2, that is, the frequency domain resource in the second transmission resource and the frequency domain resource in the first transmission resource completely overlap, the time domain resource in the second transmission resource is t3-t4, the time domain resource in the first transmission resource is t1-t2, t1<t2<t3<t4, and the time domain resource in the second transmission resource and the time domain resource in the first transmission resource do not overlap.

[0239] As shown in (b) of FIG. 8, the time domain resource in the second transmission resource and the time domain resource in the first transmission resource are both t1-t2, that is, the time domain resource in the second transmission resource and the time resource in the first transmission resource completely overlap, the frequency domain resource in the second transmission resource is f3-f4, the frequency domain resource in the first transmission resource is f1-f2, f1<f2<f3<f4, and the frequency domain resource in the second transmission resource and the frequency domain resource in the first transmission resource do not overlap.

[0240] Mode three: the transmission resources of the first transmission resource and the second transmission resource partially overlap in a part of the multiple dimensions, and the transmission resources of the first transmission resource and the second transmission resource do not overlap in another part of the multiple dimensions.

[0241] For example, FIG. 9 is a schematic diagram of a first transmission resource and a second transmission resource provided by the embodiment of the present application. As shown in (a) of FIG. 9, the frequency domain resource in the second transmission resource is f1-f2, the frequency domain resource in the first transmission resource is f1-f3, f1<f2<f3, that is, the frequency domain resource in the second transmission resource and the frequency domain resource in the first transmission resource partially overlap, and the overlapping resource is f1-f2; the time domain resource in the second transmission resource is t3-t4, the time domain resource in the first transmission resource is t1-t2, t1<t2<t3<t4, and the time domain resource in the second transmission resource and the time domain resource in the first transmission resource do not overlap.

[0242] As shown in (b) of FIG. 9, the time domain resource in the second transmission resource is t1-t2, the time domain resource in the first transmission resource is t1-t3, t1<t2<t3, that is, the time domain resource in the second transmission resource and the time domain resource in the first transmission resource partially overlap, and the overlapping resource is t1-t2; the frequency domain resource in the second transmission resource is f3-f4, the frequency domain resource in the first transmission resource is f1-f2, t1<t2<t3<t4, and the frequency domain resource in the second transmission resource and the frequency domain resource in the first transmission resource do not overlap.

[0243] In summary, taking the transmission resource in two dimensions as an example, the transmission resource includes the time domain resource and the frequency domain resource, which can be referred to as time-frequency resource, and the first transmission resource and the second transmission resource partially overlap, which can include any of the following:

[0244] (1) The first transmission resource is a first time-frequency resource, the second transmission resource is a second time-frequency resource, and the first time-frequency resource and the second time-frequency resource partially overlap. For example, the second time-frequency resource is part of the first time-frequency resource, or there is partially overlapping resource in the second time-frequency resource and the first time-frequency resource.

[0245] (2) The first transmission resource is a first time domain resource, the second transmission resource is a second time domain resource, and the first time domain resource and the second time domain resource partially overlap. For other transmission first signal resources other than the first time domain resource, such as the first frequency domain resource and the first space domain resource, and for other transmission second signal resources other than the second time domain resource, such as the second frequency domain resource and the second space domain resource, they can be the same or different.

[0246] (3) The first transmission resource is a first frequency domain resource, the second transmission resource is a second frequency domain resource, and the first frequency domain resource and the second frequency domain resource partially overlap. For other transmission first signal resources other than the first frequency domain resource, such as the first time domain resource and the first space domain resource, and for other transmission second signal resources other than the second frequency domain resource, such as the second time domain resource and the second space domain resource, they can be the same or different.

[0247] S503: The second node transmits the first signal on the first transmission resource.

[0248] The first transmission resource and the first signal are described above and will not be repeated here.

[0249] Optionally, in order to improve privacy, each node can dynamically / flexibly change the configuration of each time of signal transmission, for example, the second node can dynamically / flexibly change the configuration of each time of transmitting the first signal, the configuration of transmitting the first signal can be the content of transmitting the first signal, the antenna for transmitting the first signal, the transmission power, etc., and the third node can dynamically / flexibly change the configuration of each time of transmitting the second signal, in this way, the attacker cannot know the signal transmission rule / characteristic, and thus cannot analyze the received signal, so as to improve the target privacy.

[0250] Optionally, each transmission resource (such as the first transmission resource and the second transmission resource) can include a plurality of transmission units, the plurality of transmission units correspond to resources used for multiple times of signal transmission, and each transmission unit in the plurality of transmission units can correspond to resources used for each time of signal transmission.

[0251] In the case where the transmission resource (such as the first transmission resource and the second transmission resource) includes a plurality of transmission units, the resources occupied by each transmission unit in the plurality of transmission units can be the same or different, and the resources occupied by the transmission unit can refer to the resource mapping position, which can be replaced by the time-frequency resource position mapped to.

[0252] In the case where the transmission resource (such as the first transmission resource and the second transmission resource) includes a plurality of transmission units, the signals transmitted on the plurality of transmission units are variable, and the signals transmitted on the plurality of transmission units being variable can include one or more of the following: the content of the signals transmitted on the plurality of transmission units is variable, the transmission power of the signals transmitted on the plurality of transmission units is variable, and the transmission antenna of the signals transmitted on the plurality of transmission units is variable.

[0253] In an example, the first transmission resource includes a plurality of transmission units, and the first signals transmitted on the plurality of transmission units are variable, and the first signals transmitted on the plurality of transmission units being variable includes one or more of the following: the content of the first signals transmitted on the plurality of transmission units is variable, the transmission power of the first signals transmitted on the plurality of transmission units is variable, and the transmission antenna of the first signals transmitted on the plurality of transmission units is variable.

[0254] In another example, the second transmission resource includes a plurality of transmission units, and the second signal transmitted on the plurality of transmission units is variable. The second signal transmitted on the plurality of transmission units is variable in one or more of the following aspects: the content of the second signal transmitted on the plurality of transmission units is variable, the transmission power of the second signal transmitted on the plurality of transmission units is variable, and the sending antenna of the second signal transmitted on the plurality of transmission units is variable.

[0255] In the case where the content of the signal transmitted on the plurality of transmission units is variable, it can be understood that the content of the signal transmitted on the plurality of transmission units can be different or the same.

[0256] For example, the first transmission resource includes a plurality of transmission units, and the content of the first signal transmitted on the plurality of transmission units can be different. For example, the content of the first signal transmitted on the current transmission unit is a ZC sequence corresponding to a root value u1, and the content of the first signal transmitted on the previous transmission unit adjacent to the current transmission unit is a ZC sequence corresponding to a root value u0. The content of the first signal transmitted on the plurality of transmission units included in the first transmission resource can be the same. For example, the content of the first signal transmitted on the current transmission unit and the content of the first signal transmitted on the previous transmission unit adjacent to the current transmission unit are both ZC sequences corresponding to a root value u0.

[0257] Optionally, in some possible embodiments, the root value u of the ZC sequence can be generated according to key information or a random seed (or random number). The key information can be key information between a node (for example, the second node in the first embodiment) that transmits the first signal and a node (for example, the first node in the first embodiment) that receives the first signal. The random seed can be generated by the second node according to the key information. In this embodiment, the first node and the second node can agree on a plurality of groups of key information or random seeds in advance. According to the key information or the random seed, the second node can determine that the first signal used for sensing needs to be replaced. The generation manner of the second signal and the generation manner of the first signal can be the same or different, which is not limited.

[0258] In the case where the transmission power of the signal transmitted on the plurality of transmission units is variable, it can be understood that the transmission power of the signal transmitted on the plurality of transmission units can be the same or different.

[0259] For example, the first transmission resource includes a plurality of transmission units, and the first signal transmitted by the plurality of transmission units can have different transmission powers. For example, the first signal transmitted by the current transmission unit has a transmission power of P1, and the first signal transmitted by the previous transmission unit adjacent to the current transmission unit has a transmission power of P2. The first signal transmitted by the plurality of transmission units included in the first transmission resource can have the same transmission power. For example, the first signal transmitted by the current transmission unit and the first signal transmitted by the previous transmission unit adjacent to the current transmission unit both have a transmission power of P1.

[0260] In the embodiment, the transmission antennas of the signals transmitted by the plurality of transmission units are variable. It can be understood that the transmission antennas of the signals transmitted by the plurality of transmission units can be the same or different.

[0261] For example, the first transmission resource includes a plurality of transmission units, and the first signal transmitted by the plurality of transmission units can have different transmission powers. For example, the first signal transmitted by the current transmission unit has a transmission power of P1, and the first signal transmitted by the previous transmission unit adjacent to the current transmission unit has a transmission power of P2. The first signal transmitted by the plurality of transmission units included in the first transmission resource can have the same transmission power. For example, the first signal transmitted by the current transmission unit and the first signal transmitted by the previous transmission unit adjacent to the current transmission unit both have a transmission power of P1.

[0262] In the embodiment, the transmission antennas of the signals transmitted by the plurality of transmission units are variable. It can be understood that the transmission antennas of the signals transmitted by the plurality of transmission units can be the same or different.

[0263] S504: The third node transmits the second signal on the second transmission resource.

[0264] In the embodiment, the transmission antennas of the signals transmitted by the plurality of transmission units are variable. It can be understood that the transmission antennas of the signals transmitted by the plurality of transmission units can be the same or different.

[0265] It should be understood that the process shown in FIG. 5 is an example of transmitting the first signal and the second signal once.

[0266] It should be noted that the steps S501-S504 are only used to exemplarily describe the flow of the communication method. The execution sequence between the step S501 and the step S502 is not limited. For example, the step S501 can be executed before the step S502; or the step S501 can be executed after the step S502; or the step S501 can be executed simultaneously with the step S502. The execution sequence between the step S503 and the step S504 is not limited. For example, the step S503 can be executed before the step S504; or the step S503 can be executed after the step S504; or the step S503 can be executed simultaneously with the step S504.

[0267] Further optionally, the method shown in FIG. 5 further includes:

[0268] S505: The first node receives the first signal transmitted through the channel.

[0269] Optionally, the first node can receive the first signal transmitted through the channel on the resource which is not completely overlapped between the first transmission resource and the second transmission resource, wherein the resource which is not completely overlapped can be the resource which is not completely overlapped between the two transmission resources. In the case that each of the two transmission resources includes transmission resources in multiple dimensions, the resource which is not completely overlapped between the first transmission resource and the second transmission resource can be the resource which is not overlapped between the two transmission resources in any dimension of the multiple dimensions.

[0270] For example, FIG. 6 is a schematic diagram of a first transmission resource and a second transmission resource provided by an embodiment of the present application. As shown in (a) of FIG. 6, the second transmission resource is part of the first transmission resource, and the resource which is not completely overlapped between the first transmission resource and the second transmission resource can be any of the following: (1) the resource which is not completely overlapped between the first transmission resource and the second transmission resource, i.e., the time domain resource of t1-t2 and the frequency domain resource of f1-f2; (2) the resource which is not overlapped between the time domain resource of the first transmission resource and the time domain resource of the second transmission resource, i.e., the time domain resource of t1-t2; (3) the resource which is not overlapped between the frequency domain resource of the first transmission resource and the frequency domain resource of the second transmission resource, i.e., the frequency domain resource of f2-f3.

[0271] S506: The first node obtains the first channel information according to the first signal.

[0272] As a possible implementation, the first node can perform channel estimation according to the first signal and the signal transmitted through the channel by the first signal to obtain the first channel information, wherein the first channel information is the channel information of the channel experienced by the first signal, or the channel information between the first node and the second node.

[0273] The embodiment corresponding to FIG. 5 is taken as an example, in which the first node indicates the first transmission resource for sending the first signal to the second node and the second transmission resource for sending the second signal to the third node, the second node sends the first signal on the first transmission resource, the third node sends the second signal on the second transmission resource, and the first node receives the first signal and obtains the first channel information according to the first signal. The communication method provided by the present application is introduced. Alternatively, the second node can indicate the first transmission resource for sending the first signal to the first node, and the first node can indicate the second transmission resource for sending the second signal to the third node. The first node sends the first signal on the first transmission resource, the third node sends the second signal on the second transmission resource, and the second node receives the first signal and obtains the first channel information according to the first signal. Specifically, the implementation is described below with reference to the embodiment corresponding to FIG. 10.

[0274] Embodiment two:

[0275] FIG. 10 is a flowchart of another communication method provided by the present application. As shown in FIG. 10, the method can include the following steps:

[0276] S1001: The second node sends third information to the first node, and the first node receives the third information from the second node.

[0277] The third information can be used to indicate the first transmission resource for sending the first signal. Although the third information has a similar indication function as the first information, it is also used to indicate the first transmission resource for sending the first signal, but it is different from the embodiment one in that the first information is used to indicate the first transmission resource for sending the first signal by the second node, and the third information is used to indicate the first transmission resource for sending the first signal by the first node, and the indication objects are different.

[0278] The indication mode of the third information and the signaling format carrying the third information can refer to the indication mode of the first information and the signaling format carrying the first information in the above-mentioned embodiment one, and will not be described herein.

[0279] Optionally, the second node can indicate the first signal to the first node. Specifically, the indication mode of the first signal can refer to the indication mode of the first signal in the above-mentioned embodiment one, such as being indicated by the third information or being indicated by other information, which will not be described herein.

[0280] S1002: The second node sends first request information to the first node, and the first node receives the first request information from the second node.

[0281] The first request information is used to trigger the first node to send the fourth information.

[0282] The fourth information can be used to indicate the second transmission resource in which the third node transmits the second signal. Although the fourth information and the second information have the same indication effect and indication object, both of which are used to indicate the second transmission resource in which the third node transmits the second signal, different from the embodiment one, the second transmission resource indicated by the fourth information can be the second transmission resource allocated by the second node or the second transmission resource allocated by the first node, while the second transmission resource indicated by the second information in the embodiment one is the second transmission resource allocated by the first node, and the allocation object corresponding to the second transmission resource indicated by the two information can be different.

[0283] In an example, the first request information can contain the fourth information. For example, in the case that the second transmission resource in which the third node transmits the second signal is configured by the sensing initiator, i.e., the second node, or the second signal is configured by the second node, the first request information can contain the fourth information. The fourth information can be sent to the third node via the first node, so that the third node can transmit the second signal on the second transmission resource configured by the sensing initiator, i.e., the second signal configured by the sensing node.

[0284] In another example, the first request information can not contain the fourth information. For example, in the case that the second transmission resource in which the third node transmits the second signal is configured by the first node, or the second signal is configured by the first node, the first request information can not contain the fourth information.

[0285] The indication manner of the fourth information and the signaling format carrying the fourth information can refer to the indication manner of the second information and the signaling format carrying the second information in the above-described embodiment one, and will not be described herein.

[0286] Optionally, the first node can indicate the second signal to the third node. Specifically, the indication manner of the second signal can refer to the indication manner of the second signal in the above-described embodiment one, such as being indicated by the fourth information or being indicated by other information, and will not be described herein.

[0287] S1002 is an optional operation. In the case that the first node triggers the fourth information to be sent to the third node, S1002 is performed, so that the third node can receive the fourth information from the first node. In the case that the first node actively sends the fourth information to the third node, S1002 is not performed. For example, the first node periodically sends the fourth information, and the third node can periodically receive the fourth information from the first node.

[0288] S1003: The first node sends the fourth information to the third node, and the third node receives the fourth information from the first node.

[0289] The fourth information can refer to the related description in S1002 and will not be described herein.

[0290] S1004: The first node transmits the first signal to the second node on the first transmission resource.

[0291] The third information and the first signal can be found in the description of S1001, and will not be described here.

[0292] S1005: The third node transmits the second signal on the second transmission resource.

[0293] The fourth information and the second signal can be found in the description of S1002, and will not be described here.

[0294] The second transmission resource and the first transmission resource partially overlap, and the description thereof can be found in the description of the partial overlap of the second transmission resource and the first transmission resource in FIG. 5, and will not be described here.

[0295] S1006: The second node receives the first signal on the resource on which the first transmission resource and the second transmission resource do not completely overlap.

[0296] The second node receives the first signal on the resource on which the first transmission resource and the second transmission resource do not completely overlap, and the description thereof can be found in the description of the first node receiving the first signal transmitted through the channel in S505, and will not be described here.

[0297] It should be noted that the above steps S1001-S1005 only exemplarily describe the flow of the communication method. The execution sequence between step S1001 and step S1003 is not limited. For example, step S1001 can be executed before step S1003; or step S1001 can be executed after step S1003; or step S1001 can be executed simultaneously with step S1003. The execution sequence between step S1004 and step S1005 is not limited. For example, step S1004 can be executed before step S1005; or step S1004 can be executed after step S1005; or step S1004 can be executed simultaneously with step S1005.

[0298] Further optionally, the method shown in FIG. 10 further includes:

[0299] S1006: The second node obtains the first channel information according to the first signal.

[0300] As a possible implementation, the second node can perform channel estimation to obtain the first channel information according to the first signal and the first signal transmitted through the channel.

[0301] The above Figure 5 corresponds to the embodiment in which the first node indicates to the second node a first transmission resource for sending the first signal, and indicates to the third node a second transmission resource for sending the second signal, the second node sends the first signal on the first transmission resource, the third node sends the second signal on the second transmission resource, and the first node receives the first signal and obtains the first channel information according to the first signal. As an example, the communication method provided by the present application is introduced, which can be replaced by the first node indicating to the second node a second transmission resource for sending the second signal, and indicating to the third node a third transmission resource for receiving the first signal, the first node sending the first signal on the first transmission resource, the second node sending the second signal on the second transmission resource, and the third node receiving the first signal on the third transmission resource and obtaining the first channel information according to the first signal. Specifically, the implementation is described below with reference to the embodiment corresponding to Figure 11.

[0302] Embodiment three:

[0303] Figure 11 is a flow chart of another communication method provided by the present application, as shown in Figure 11, the method can include the following steps:

[0304] S1101: The first node sends fifth information to the second node, and the second node receives the fifth information from the first node.

[0305] The fifth information can be used to indicate the second transmission resource for sending the second signal. Although the fifth information has a similar indication function as the second information, it is also used to indicate the second transmission resource for sending the second signal, but it is different from the embodiment one in that the fifth information is used to indicate the second transmission resource for the second node to send the second signal, and the second information is used to indicate the second transmission resource for the third node to send the second signal, and the indication objects are different.

[0306] The indication mode of the fifth information and the signaling format carrying the fifth information can refer to the indication mode of the second information and the signaling format carrying the second information in the above embodiment one, which will not be described here.

[0307] Optionally, the first node can indicate the second signal to the second node. Specifically, the indication mode of the second signal can refer to the indication mode of the second signal in the above embodiment one, such as indicating by the fifth information, or indicating by other information, which will not be described here.

[0308] S1102: The first node sends sixth information to the third node, and the third node receives the sixth information from the first node.

[0309] The sixth information can be used to indicate the third transmission resource for the third node to receive the first signal. The first signal can refer to the above description, which will not be described here.

[0310] In the embodiment shown in FIG. 11, the first node allocates a second transmission resource for the second node to transmit the second signal, and the first node knows the first transmission resource in which the first node transmits the first signal, and the first transmission resource and the second transmission resource partially overlap, therefore, in order for the third node to obtain the channel information of the channel experienced by the "pure" first signal, the first node can allocate a third transmission resource for the third node to receive the first signal.

[0311] In this application, the third transmission resource for receiving the first signal can be understood as part of the first transmission resource in which the first signal is transmitted, or part of the first transmission resource in which the first signal is carried, or part of the first transmission resource in which the first signal is sent / transmitted, etc., without limitation. Optionally, the third transmission resource can include time domain resources, frequency domain resources, or space domain resources, etc.

[0312] Optionally, the third transmission resource can be a resource that is not completely overlapped with the first transmission resource and the second transmission resource, and the third node can receive the "pure" first signal on the non-overlapped resource in the not completely overlapped resource.

[0313] In this application, the sixth information can directly indicate the third transmission resource, or indirectly indicate the third transmission resource. In the case of the sixth information, taking the third transmission resource as a third time-frequency resource, the sixth information can include frequency points, radio frame indexes to directly indicate the third transmission resource; or the sixth information can include indexes of frequency bands, starting times of time slots, etc. to indirectly indicate the third transmission resource.

[0314] Optionally, in order to perform channel estimation to obtain the channel information corresponding to the first signal, the third node also needs to obtain the first signal, so that after the third node receives the signal after the first signal is transmitted through the channel, the third node performs channel estimation based on the received signal and the first signal to obtain the channel information.

[0315] Optionally, the first node can indicate the first signal to the third node. Specifically, the way of indicating the first signal can refer to the indication way of the first signal in the above embodiment one, such as can be indicated by the sixth information, or can be indicated by other information, which is not described herein.

[0316] For example, FIG. 12 is a schematic diagram of a first transmission resource and a second transmission resource according to an embodiment of the present application. As shown in FIG. 12, the first transmission resource for transmitting the first signal is a first frequency, time t1 to time t8, the second transmission resource for transmitting the second signal is the first frequency, time t2 to time t4, and time t6 to time t8, the frequency domain resource in the first transmission resource and the second transmission resource is the first frequency, and the third transmission resource can be the non-overlapping resource in the first transmission resource and the second transmission resource, which is the first frequency, time t1, and time t5.

[0317] S1103: The first node transmits the first signal on the first transmission resource.

[0318] The first transmission resource and the second transmission resource partially overlap, and details are described above and will not be repeated here.

[0319] S1104: The second node transmits the second signal on the second transmission resource.

[0320] S1105: The third node receives the first signal transmitted through the channel on the third transmission resource.

[0321] The third transmission resource is described in S1102 and will not be repeated here.

[0322] It should be noted that the above steps S1101-S1105 only exemplarily describe the flow of the communication method. The execution order between step S1101 and step S1102 is not limited. For example, step S1101 can be executed before step S1102; or step S1101 can be executed after step S1102; or step S1101 can be executed simultaneously with step S1102. The execution order between step S1103 and step S1104 is not limited. For example, step S1103 can be executed before step S1104; or step S1103 can be executed after step S1104; or step S1103 can be executed simultaneously with step S1104.

[0323] Further optionally, the method shown in FIG. 11 further includes:

[0324] S1106: The third node transmits seventh information to the first node, and the first node receives the seventh information from the third node.

[0325] The seventh information is used to indicate the channel information between the first node and the third node, which can be obtained by the third node according to the first signal.

[0326] As a possible implementation, the third node can perform channel estimation according to the first signal and the signal after channel transmission of the first signal received on the third transmission resource to obtain first channel information, the first channel information being channel information of a channel experienced by the first signal or channel information between the first node and the third node.

[0327] S1106 is an optional operation. The first node in Embodiment Three can be a sensing initiation node or a sensing response node. In the case where the first node is a sensing initiation node, the third node needs to send the first channel information obtained according to the first signal to the first node, and S1106 is performed, so that the first node performing the sensing task can obtain the first channel information, thereby realizing target sensing and obtaining relevant information of the target. In the case where the first node is a sensing response node, the first node is not a node performing the sensing task, and therefore the third node can not send the first channel information to the first node, and S1106 is not performed.

[0328] S1107: The third node sends eighth information to the first node, and the first node receives the eighth information from the third node.

[0329] The eighth information is used to indicate a transmission resource corresponding to the channel information between the first node and the third node. The channel information between the first node and the third node can be channel information of a channel experienced by the first signal, i.e., the first channel information. Therefore, the eighth information used to indicate a transmission resource corresponding to the channel information between the first node and the third node can be alternatively described as the eighth information used to indicate a transmission resource corresponding to the first channel information.

[0330] S1107 is an optional operation. The first node sends the sixth information to the third node to indicate the third transmission resource on which the third node receives the first signal. In one possible implementation, the third node receives the first signal on all resources of the third transmission resource, and therefore the transmission resource on which the third node receives the first signal is known to the first node. The transmission resource corresponding to the first channel information obtained by the third node according to the received first signal is also known to the first node, and therefore the third node can not send the transmission resource corresponding to the first channel information to the first node, i.e., S1107 is not performed. In another possible implementation, the third node receives the first signal on part of the resources of the third transmission resource, and therefore the transmission resource on which the third node receives the first signal is unknown to the first node. The transmission resource corresponding to the first channel information obtained by the third node according to the received first signal is also unknown to the first node, and therefore the third node needs to send the transmission resource corresponding to the first channel information to the first node, i.e., S1107 is performed.

[0331] The above embodiment one to embodiment three are combined with the communication system shown in FIG. 3 to describe the communication method provided by the embodiments of the present application. The following describes the communication method provided by the embodiments of the present application combined with the communication system shown in FIG. 4. The difference between the communication system shown in FIG. 4 and the communication system shown in FIG. 3 is that the communication system shown in FIG. 4 includes two nodes, such as a first node and a second node. One of the two nodes is used to send the first signal, and the other node is used to send the second signal and receive the first signal to obtain the channel information between the two nodes. In the following embodiment four and embodiment five, the first node is the node used to send the first signal, and the second node is the node used to send the second signal and receive the first signal. Alternatively, the first node can also be the node used to send the second signal and receive the first signal, and the second node can also be the node used to send the first signal. Here, the description is unified, and the following will not be described again.

[0332] Embodiment four:

[0333] The following describes the communication method provided by the embodiments of the present application in the communication system shown in FIG. 4, in which the communication system includes the first node and the second node.

[0334] FIG. 13 is a flowchart of another communication method provided by the embodiments of the present application. As shown in FIG. 13, the method can include the following steps:

[0335] S1301: The first node sends the ninth information to the second node, and the second node receives the ninth information from the first node.

[0336] The ninth information is used to indicate the first transmission resource used to send the first signal. Although the ninth information has a similar indication function as the first information and is also used to indicate the first transmission resource used to send the first signal, the difference from the embodiment one is that the first information is used to indicate the first transmission resource used to send the first signal by the second node, and the ninth information is used to indicate the first transmission resource used to send the first signal by the first node, and the indication objects are different.

[0337] In addition, in the embodiment one, the first node is the node used to receive the first signal, the second node is the node used to send the first signal, and the first information is sent by the node used to receive the first signal to the node used to send the first signal. In the embodiment four, the first node is the node used to send the first signal, the second node is the node used to receive the first signal, and the ninth information is sent by the node used to send the first signal to the node used to receive the first signal. The flow directions of the indication information are different.

[0338] The indication manner of the ninth information and the signaling format carrying the ninth information can refer to the indication manner of the first information and the signaling format carrying the first information in the above embodiment one, and will not be described again.

[0339] Optionally, the first node can indicate the first signal to the second node. Specifically, the indication of the first signal can be implemented by referring to the indication of the first signal in Embodiment I, for example, the indication can be implemented by the ninth information or other information, which will not be described herein.

[0340] S1302: The second node transmits the second signal on the second transmission resource.

[0341] The second signal can not be used by the second node to obtain the channel information, which can be referred to the above description and will not be described herein.

[0342] The second transmission resource and the first transmission resource partially overlap, which can be referred to the above description and will not be described herein.

[0343] The second transmission resource can be determined by the second node itself or by other nodes such as the first node.

[0344] In an example, the second transmission resource is determined by the second node according to the first transmission resource, and the second node can transmit the tenth information to the first node, the tenth information being used to indicate the second transmission resource on which the second node transmits the second signal, so that the first node can not transmit any information to the second node when the second node transmits the second signal.

[0345] For example, the first node is a management node, and the second node is a terminal node, the terminal node being a node performing a sensing task, the terminal node requests the management node to transmit the first signal used to obtain the channel information, the management node allocates the first transmission resource used to transmit the first signal, and indicates the first transmission resource to the terminal node by the ninth information, the terminal node receives the ninth information, selects part of the resource in the first transmission resource indicated by the ninth information as the second transmission resource to transmit the second signal, and indicates the second transmission resource on which the second signal is transmitted to the management node by the tenth information, so that the management node can not transmit other downlink information to the terminal node when the terminal node transmits the second signal, or facilitate the management node to schedule other nodes in the domain.

[0346] In another example, the second transmission resource is determined by the first node, and the second node can receive the tenth information from the first node, the tenth information being used to indicate the second transmission resource on which the second node transmits the second signal, so that the second node can transmit the second signal on the second transmission resource allocated by the first node.

[0347] For example, the first node is a management node, the second node is a terminal node, the terminal node is a node performing a sensing task, the terminal node requests the management node to send a first signal for obtaining channel information, the management node allocates a first transmission resource for the management node to send the first signal, and indicates the first transmission resource to the terminal node through ninth information; in addition, the terminal node is to avoid target privacy exposure, and the terminal node further requests the management node to allocate a second transmission resource for the terminal node, and the management node indicates the second transmission resource to the terminal node through tenth information, and the terminal node receives the tenth information and sends a second signal on the second transmission resource indicated by the tenth information.

[0348] The tenth information can be used to indicate the second transmission resource for sending the second signal. Although the tenth information and the second information have similar indication functions, both of which are used to indicate the second transmission resource for sending the second signal, different from the first embodiment, the tenth information indicates the second transmission resource for the second node to send the second signal, while the second information in the first embodiment indicates the second transmission resource for the third node to send the second signal, and the indication objects are different.

[0349] In addition, in the first embodiment, the first node is a node receiving the first signal, the third node is a node sending the second signal, and the second information is sent by the node receiving the first signal to the node sending the second signal; while in the fourth embodiment, the first node is a node sending the first signal, the second node is a node sending the second signal and receiving the first signal, and the flow directions of the two indication information can be the same or different.

[0350] The indication manner of the tenth information and the signaling format carrying the tenth information can refer to the indication manner of the second information and the signaling format carrying the second information in the first embodiment, which will not be described herein.

[0351] S1303: The first node sends the first signal on the first transmission resource.

[0352] The first transmission resource and the first signal are described above and will not be described herein.

[0353] Optionally, the method shown in FIG. 13 further includes:

[0354] S1304: The second node receives the signal transmitted by the first signal through the channel.

[0355] The second node can receive the first signal transmitted through the channel on the resource that is not completely overlapped with the first transmission resource and the second transmission resource, and the resource that is not completely overlapped with the first transmission resource and the second transmission resource is described above and will not be described herein.

[0356] An example, FIG. 14 is a schematic diagram of a first transmission resource and a second transmission resource provided by the embodiments of the present application, as shown in FIG. 14, the first transmission resource for transmitting the first signal is the first frequency, time t1 and time t5, the second transmission resource for transmitting the second signal is the first frequency, time t2 to time t4 and time t6 to time t8, the frequency domain resource in the first transmission resource and the second transmission resource is the first frequency, at this time, the non-overlapping resource in the first transmission resource and the second transmission resource is the first frequency, time t1 and time t5, and the second node receives the first signal transmitted through the channel at the first frequency, time t1 and time t5.

[0357] Another example, the first transmission resource and the second transmission resource are shown in FIG. 12, the first transmission resource for transmitting the first signal is the first frequency, time t1 to time t8, the second transmission resource for transmitting the second signal is the first frequency, time t2 to time t4 and time t6 to time t8, the frequency domain resource in the first transmission resource and the second transmission resource is the first frequency, at this time, the non-overlapping resource in the first transmission resource and the second transmission resource is the first frequency, time t1 and time t5.

[0358] S1305: The second node obtains the first channel information according to the first signal.

[0359] As a possible implementation, the second node can perform channel estimation according to the first signal and the signal transmitted through the channel of the first signal to obtain the first channel information.

[0360] S1306: The second node sends the eleventh information to the first node, and the first node receives the eleventh information from the second node.

[0361] The eleventh information is used to indicate the channel information between the first node and the second node, and the channel information between the first node and the second node is also the channel information of the channel experienced by the first signal, that is, the first channel information, which can be obtained by the second node according to the first signal, and the obtaining method is shown in S1305.

[0362] S1306 is an optional operation, the first node in embodiment four can be a sensing initiation node or a sensing response node, in the case of the first node being a sensing initiation node, the second node needs to send the channel information obtained according to the first signal, that is, the first channel information, to the first node, and perform S1306, so that the first node performing the sensing task can obtain the first channel information, thereby realizing the target sensing and obtaining the related information of the target; in the case of the first node being a sensing response node, the first node is not the node performing the sensing task, therefore, the second node can not send the first channel information to the first node, and S1306 is not performed.

[0363] S1307: The second node sends twelfth information to the first node, and the first node receives the twelfth information from the second node.

[0364] The twelfth information is used to indicate the transmission resource corresponding to the channel information between the first node and the second node. The channel information between the first node and the second node can be the first channel information, and thus the twelfth information used to indicate the transmission resource corresponding to the channel information between the first node and the third node can be alternatively described as the twelfth information used to indicate the transmission resource corresponding to the first channel information.

[0365] S1307 is an optional operation. The first transmission resource and the second transmission resource can both be determined by the first node, or the first transmission resource is determined by the first node and the second transmission resource is determined by the second node. In the case that the first transmission resource and the second transmission resource are both determined by the first node, the resource for the second node to receive the first signal is known to the first node, and the transmission resource corresponding to the first channel information obtained by the second node according to the received first signal is also known to the first node. Thus, the second node can not send the transmission resource corresponding to the first channel information to the first node, i.e., S1307 is not performed; in the case that the first transmission resource is determined by the first node and the second transmission resource is determined by the second node, the resource that is not completely overlapped between the first transmission resource and the second transmission resource is unknown to the first node, i.e., the transmission resource for the second node to receive the first signal is unknown to the first node, and the transmission resource corresponding to the first channel information obtained by the second node according to the received first signal is also unknown to the first node. Thus, the second node needs to send the transmission resource corresponding to the first channel information to the first node, i.e., S1307 is performed.

[0366] The above-described embodiment corresponding to FIG. 13 takes the first node indicating the first transmission resource for sending the first signal to the second node as an example to introduce the communication method provided by the present application. Alternatively, the second node can indicate the first transmission resource for sending the first signal to the first node, and the specific implementation is described below with reference to the embodiment corresponding to FIG. 15.

[0367] Embodiment Five

[0368] FIG. 15 is a flowchart of another communication method provided by the present application. As shown in FIG. 15, the method can include the following steps:

[0369] S1501: The second node sends thirteenth information to the first node, and the first node receives the thirteenth information from the second node.

[0370] The thirteenth information is used for indicating the first transmission resource for sending the first signal. The thirteenth information is similar to the first information in indicating the first transmission resource for sending the first signal, but different from the first information in the first embodiment, the first information is used for indicating the first transmission resource for sending the first signal by the second node, and the thirteenth information is used for indicating the first transmission resource for sending the first signal by the first node, and the indicating object is different.

[0371] The indication manner of the thirteenth information and the signaling format carrying the thirteenth information can refer to the indication manner of the first information and the signaling format carrying the first information in the above first embodiment, and details are not described herein.

[0372] Optionally, the second node can indicate the first signal to the first node. Specifically, the indication manner of the first signal can refer to the indication manner of the first signal in the above first embodiment, for example, the ninth information can be used for indication, or other information can be used for indication, and details are not described herein.

[0373] S1502: The second node sends the second signal on the second transmission resource.

[0374] The second transmission resource and the first transmission resource partially overlap, and details are described above and are not described herein.

[0375] The second transmission resource can be obtained by the fourteenth information, and the fourteenth information is used for indicating the second transmission resource for sending the second signal by the second node.

[0376] The related description of S1502 can refer to the related description of S1302, and the difference between S1502 and S1302 is that, in S1302, the tenth information is used for indicating the second transmission resource for sending the second signal by the second node, and in S1502, the fourteenth information is used for indicating the second transmission resource for sending the second signal by the second node, and the name of the indicating information is different.

[0377] The indication manner of the fourteenth information and the signaling format carrying the fourteenth information can refer to the indication manner of the second information and the signaling format carrying the second information in the above first embodiment, and details are not described herein.

[0378] In an example, the first node is a sensing initiator, the second node is a sensing responder, the sensing initiator is a node performing a sensing task, the sensing initiator requests the sensing responder to send a first signal for obtaining channel information, the sensing responder determines a first transmission resource for sending the first signal according to its own transmission resource, and indicates the first transmission resource to the sensing initiator through the thirteenth information, the sensing initiator receives the thirteenth information, and sends the first signal on the first transmission resource indicated by the thirteenth information; to avoid target privacy exposure, the sensing initiator can also allocate a second transmission resource to the sensing responder, and indicate the second transmission resource to the sensing responder through the fourteenth information, the sensing responder receives the fourteenth information, and sends a second signal on the second transmission resource indicated by the fourteenth information.

[0379] In another example, the first node is a management node, and the second node is a terminal node, the terminal node is a node performing a sensing task, to avoid target privacy exposure, the terminal node determines a first transmission resource for sending a first signal and a second transmission resource for sending a second signal according to its own transmission resource; further, the terminal node requests the management node to send the first signal on the first transmission resource through the thirteenth information, and indicates the second transmission resource to the management node through the fourteenth information, so that the management node can not send other downlink information to the terminal node when the terminal node sends the second signal, or facilitate the management node to schedule other nodes in the domain.

[0380] S1503: The first node sends the first signal on the first transmission resource.

[0381] The first node sends the first signal on the first transmission resource indicated by the thirteenth information, and the first transmission resource and the first signal are described above and will not be repeated here.

[0382] Optionally, the method shown in FIG. 15 further includes:

[0383] S1504: The second node receives a signal transmitted by the first signal through a channel.

[0384] S1505: The second node obtains first channel information according to the first signal.

[0385] S1504-S1505 can refer to S1304-S1305, and will not be repeated here.

[0386] S1506: The second node sends fifteenth information to the first node, and the first node receives the fifteenth information from the second node.

[0387] The related description of S1506 can be referred to the related description of S1306, and a difference between S1506 and S1306 is that, in S1306, the eleventh information is used to indicate the channel information between the first node and the second node, and in S1506, the fifteenth information is used to indicate the channel information between the first node and the second node, and the names of the indication information are different.

[0388] S1507: The second node sends sixteenth information to the first node, and the first node receives the sixteenth information from the second node.

[0389] The related description of S1507 can be referred to the related description of S1307, and a difference between S1507 and S1307 is that, in S1307, the twelfth information is used to indicate the transmission resource corresponding to the channel information between the first node and the second node, and in S1507, the sixteenth information is used to indicate the transmission resource corresponding to the channel information between the first node and the second node, and the names of the indication information are different.

[0390] In a possible implementation, in the communication method shown in FIG. 13 or FIG. 15, when the second node is a sensing initiator node, the second node sends a second signal on a second transmission resource. Since the second signal is not used to obtain channel information, the first node does not need to receive the second signal, and therefore the second node can not indicate the second transmission resource to the first node.

[0391] Based on the description of the communication method provided by the embodiments of the present application, in a possible implementation, the scheme provided by the embodiments of the present application is applicable to at least one of Bluetooth (BT) communication, sparklink or nearlink communication, Wi-Fi communication, and the like. In the embodiments of the present application, BT and Bluetooth Low Energy (BLE) can be used to refer to each other. Wherein, the sparklink can include at least one of the following: sparklink low energy (SLE), sparklink basic (SLB), or sparklink position (SLP). In the embodiments of the present application, the sparklink can be used to refer to the sparklink low energy (SLE), the sparklink basic (SLB), or the sparklink position (SLP).

[0392] Some embodiments of the scheme provided by the present application are introduced below.

[0393] Embodiment one:

[0394] Bluetooth (BT), Wi-Fi and SparkLink (or NearLink) can use 2.4GHz or 5GHz frequency band, have similarities, and some modules can be multiplexed, so that the chip cost, area and power consumption can be saved. Chip resources can be highly multiplexed, and multiple chips can be quickly iterated.

[0395] Wi-Fi and SLB can share a set of radio frequency architecture and path. As shown in FIG. 16, it is a chip architecture schematic diagram provided by an embodiment of the present application. As shown in FIG. 16, through design, central processing unit (CPU), radio frequency (RF) unit, analog baseband (ABB) unit or Modem resource sharing, media access control (MAC) layer part module multiplexing can be realized, so as to save chip area, reduce chip cost and power consumption.

[0396] As shown in FIG. 17, it is another chip architecture schematic diagram provided by an embodiment of the present application. As shown in FIG. 17, the MAC units of BT, SLB and wireless fidelity (Wi-Fi) are respectively independently realized, and the RF units and Modem units of each mode are all shared.

[0397] As shown in FIG. 18, it is still another chip architecture schematic diagram provided by an embodiment of the present application. As shown in FIG. 18, the MAC units of BT, SLB and Wi-Fi are respectively independently realized, the Modems of BT, SLB and Wi-Fi are also respectively independently realized, and the RF units of each mode are all shared.

[0398] As shown in FIG. 19, it is still another chip architecture schematic diagram provided by an embodiment of the present application. As shown in FIG. 19, the MAC units of BT, SLB and Wi-Fi are respectively independently realized, the Modems of some modes such as Wi-Fi and SLB are shared, the Modems of other modes such as BT are independently realized, and the RF units of each mode are all shared.

[0399] Embodiment two:

[0400] The star flash chip can adopt 14 / 28 / 40nm process, use chip size package (CSP), ball grid array (BGA), quad flat no-lead (QFN) and the like packaging, and adopt built-in or external flash memory. According to the application scene, at least one of the power management unit (PMU), clock management unit (CMU), active optical network (AON), wireless local area network (WLAN) or BT, star flash, global navigation satellite system (GNSS), application (APP), audio and the like subsystems can be selected to be placed on a chip to realize area minimization, function maximization, and also improve performance and reliability.

[0401] The embodiment of the present application provides a design mode of a chip, and star flash subsystems and other subsystems are integrated on a chip. According to different products, the subsystems of the chip can be tailored and combined, and different subsystems are connected through a bus.

[0402] As shown in FIG. 20, it is a chip module framework schematic diagram provided by the embodiment of the present application. As shown in FIG. 20, for the product which needs a BT or GNSS function module and needs to be connected with a Wi-Fi and star flash device, the Wi-Fi and SLB can be divided into different systems, and at least one of a BT system, a SLE system, a GNSS system, an always on system, a PMU, a CMU, a flash memory, an APP system and an audio system is combined on a chip. Different subsystems are connected through a bus.

[0403] As shown in FIG. 21, another chip module framework provided by the embodiment of the present application is shown. As shown in FIG. 21, in some embodiments, in order to save area and cost, Wi-Fi and SLB can be combined on one subsystem, and then combined with at least one of BT System, SLE System, GNSS System, Always On System, PMU, CMU, Flash memory, APP System, Audio System, etc. on one chip, and different subsystems are connected through a bus.

[0404] Embodiment three:

[0405] Wi-Fi / SLB 2.4G band is in 2412-2472MHz, and BT / BLE / SLE band is in 2402-2480MHz, which can interfere with each other. SLB and Wi-Fi in the same core can be allocated time slots through software scheduling, and SLB and Wi-Fi / BT / BLE / SLE on different cores lack unified scheduling.

[0406] The embodiment of the present application provides a communication coexistence scheme of SLB / Wi-Fi / SLE / BT / BLE, according to whether SLB and Wi-Fi / SLE / BT / BLE share an antenna, the coexistence scenario is divided into different antenna coexistence (using different antennas) and same antenna coexistence (using the same antenna), and different coexistence strategies are given.

[0407] Among them, for different antenna coexistence, if it is SLB and Wi-Fi coexistence, it can be ensured that the receiving and transmitting frequency points of SLB and Wi-Fi are different (i.e. frequency division multiplexing). Software can process from code division multiplexing, service cycle, interval (i.e. time division multiplexing); if it is SLB and SLE / BT / BLE coexistence, in the case that isolation degree cannot meet the requirements, it is necessary to avoid the channel where SLE / BT / BLE is located (i.e. channel avoidance), reduce the influence of SLE / BT / BLE, and at the same time, the mechanism of aggregation scheduling can be increased, and SLE / BT / BLE data packets are aggregated and concentrated (i.e. aggregation scheduling), to reduce the probability of being interfered by SLE / BT / BLE.

[0408] If it is co-antenna coexistence, a software static strategy or a hardware arbitration time division strategy (such as packet traffic arbitration (PTA)) can be adopted, and it can also be implemented through frequency division multiplexing, code division multiplexing, and time division multiplexing. Among them, the software static strategy has the advantages of small hardware demand, small software modification amount, and no dynamic radio frequency (RF) switching (such as RF recovery operation). The PTA strategy has the advantages of faster service state switching and smaller switching time granularity. Among them, the packet traffic arbitration PTA can also be referred to as data packet flow arbitration.

[0409] Taking SLB and SLE / BT / BLE coexistence as an example, as shown in FIG. 22, a framework schematic diagram of a software static strategy provided by an embodiment of the present application is shown. As can be seen from FIG. 22, the software static strategy can include: after SLB is started, the host (HOST) is configured through software to inform SLE / BT / BLE to exit the current radio frequency path. In this scenario, SLE / BT / BLE can check the SLB start flag, and software can set switching from the current radio frequency path to another radio frequency path. The chip needs to support software setting switching.

[0410] Taking SLB and Wi-Fi coexistence as an example, as shown in FIG. 23, another framework schematic diagram of a software static strategy provided by an embodiment of the present application is shown. As can be seen from FIG. 23, the software static strategy can include: after SLB is started, the host (HOST) is configured through software to inform Wi-Fi to exit the current radio frequency path. In this scenario, Wi-Fi can check the SLB start flag, and software can set switching from the current radio frequency path to another radio frequency path. The chip needs to support software setting switching.

[0411] As shown in FIG. 24, an exemplary schematic diagram of a hardware arbitration time allocation (PTA) strategy provided by the embodiments of the present application is shown. The PTA can use an arbitrator to determine whether one or more of the SLB / Wi-Fi / SLE / BT / BLE uses the radio frequency RF and the RF occupancy. For example, if the SLB needs to use the RF, the SLB can request access to the arbitrator, and the arbitrator can determine whether the SLB is allowed to occupy the RF according to the access request of the SLB, the access strategy, and the actual occupancy. The architecture of the PTA can adopt a two-line architecture, a three-line architecture, a four-line architecture, and the like, which can be designed and configured according to the business situation. As shown in FIG. 24, the hardware arbitration time allocation (PTA) strategy includes time allocation for any combination of transmission (TX) and reception (RX) of each party in the SLB / Wi-Fi / SLE / BT / BLE. The PTA module can deliver the occupancy of the radio frequency channel to each party, and use different level signals to represent that the radio frequency channel is occupied by one or more of the SLB / Wi-Fi / SLE / BT / BLE, and the corresponding processing is performed by the software or hardware through the level signal. Different businesses can also set different PTA priorities, and the business with high priority can preempt the air interface resources.

[0412] The above describes the scheme provided by the embodiments of the present application mainly from the perspective of interaction between devices. It can be understood that each device, such as the first node, the second node, the third node, and the like, contains a corresponding hardware structure and / or software module for executing each function in order to implement the above functions. Those skilled in the art should easily realize that the algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0413] The embodiments of the present application can group the functional modules of the first node, the second node, the third node, and the like according to the above method examples. For example, each functional module can be grouped according to each function, or two or more functions can be integrated into one processing module. The integrated module can be implemented in the form of hardware or in the form of a software functional module. It should be noted that the grouping of modules in the embodiments of the present application is illustrative, and is only a logical grouping. Actual implementation can have another grouping manner.

[0414] FIG. 25 shows a structural diagram of a communication apparatus 2500, which can be used to perform the functions of the first node involved in the above-described embodiments. As an implementation manner, the communication apparatus 2500 shown in FIG. 25 includes a transceiver 2501.

[0415] In an example, the transceiver 2501 is configured to transmit first information and transmit second information; the first information is used to indicate a first transmission resource in which a second node transmits a first signal, and the second information is used to indicate a second transmission resource in which a third node transmits a second signal; the second transmission resource partially overlaps with the first transmission resource; the first signal is used for the first node to obtain channel information, and the second signal is not used for the first node to obtain channel information. For example, the transceiver 2501 can enable the communication apparatus 2500 to perform S501-S502.

[0416] In another example, the transceiver 2501 is configured to receive third information, transmit fourth information, and transmit the first signal on the first transmission resource; the third information is used to indicate the first transmission resource in which the first node transmits the first signal, and the fourth information is used to indicate a second transmission resource in which a third node transmits a second signal; the first transmission resource partially overlaps with the second transmission resource; the first signal is used for the second node to obtain channel information, and the second signal is not used for the second node to obtain channel information. For example, the transceiver 2501 can enable the communication apparatus 2500 to perform S1001, S1003-S1004.

[0417] In another example, the transceiver 2501 is configured to transmit fifth information and transmit sixth information, and transmit the first signal on the first transmission resource; the fifth information is used to indicate a second transmission resource in which a second node transmits a second signal; the sixth information is used to indicate a third transmission resource in which a third node receives the first signal; the first transmission resource partially overlaps with the second transmission resource; the first signal is used for the second node to obtain channel information, and the second signal is not used for the second node to obtain channel information. For example, the transceiver 2501 can enable the communication apparatus 2500 to perform S1101-S1103.

[0418] In another example, the transceiver 2501 is configured to transmit ninth information, the ninth information being used to indicate a first transmission resource in which a first node transmits a first signal; and transmit the first signal on the first transmission resource; the first transmission resource partially overlaps with a second transmission resource in which a second node transmits a second signal; wherein the first signal is used for the second node to obtain channel information, and the second signal is not used for the second node to obtain channel information. For example, the transceiver 2501 can enable the communication apparatus 2500 to perform S1301, S1303.

[0419] In another example, the transceiver 2501 is configured to receive thirteenth information, the thirteenth information being used to indicate a first transmission resource used by the first node to transmit a first signal; and transmit the first signal on the first transmission resource; the first transmission resource partially overlaps with a second transmission resource, the second transmission resource being used by the second node to transmit a second signal; and the first signal is used by the second node to obtain the channel information, and the second signal is not used by the second node to obtain the channel information. For example, the transceiver 2501 can enable the communication device 2500 to perform S1501 and S1503.

[0420] The descriptions of the first signal, the second signal, the first transmission resource, the second transmission resource, the third transmission resource, the first information, the second information, the third information, the fourth information, the fifth information, the sixth information, the ninth information, and the thirteenth information can be referred to the descriptions of the above method embodiments.

[0421] Specifically, all the related contents of the steps performed by the first node in the method embodiments shown in FIG. 5, FIG. 10, FIG. 11, FIG. 13, and FIG. 15 can be referred to the descriptions of the corresponding functional modules, which will not be repeated here. The communication device 2500 is configured to perform the functions of the first node in the communication method shown in FIG. 5, FIG. 10, FIG. 11, FIG. 13, and FIG. 15, and thus can achieve the same effects as the above communication method.

[0422] FIG. 26 shows a structural diagram of a communication device 2600, which can be configured to perform the functions of the second node in the above embodiments. As an implementation manner, the communication device 2600 shown in FIG. 26 includes a transceiver 2601.

[0423] In one example, the transceiver 2601 is configured to receive first information, the first information being used to indicate a first transmission resource used by the second node to transmit a first signal; the first signal is used by the first node to obtain channel information; and transmit the first signal on the first transmission resource indicated by the first information, the first transmission resource partially overlaps with a second transmission resource, the second transmission resource being used by the third node to transmit a second signal, and the second signal is not used by the first node to obtain the channel information. For example, the transceiver 2601 can enable the communication device 2600 to perform S501 and S503.

[0424] In another example, the transceiver 2601 is configured to transmit third information, the third information being used by a first node to indicate a first transmission resource used for transmitting a first signal; the first transmission resource partially overlaps with a second transmission resource; the second transmission resource is used for a third node to transmit a second signal; and the first signal is received on a resource which does not completely overlap with the second transmission resource, wherein the first signal is used by a second node to obtain channel information, and the second signal is not used by the second node to obtain the channel information. For example, the transceiver 2601 can enable the communication apparatus 2600 to perform S1001 and S1006.

[0425] In another example, the transceiver 2601 is configured to receive fifth information, the fifth information being used by a second node to indicate a second transmission resource used for transmitting a second signal; the second transmission resource partially overlaps with a first transmission resource; the first transmission resource is used for a first node to transmit a first signal; the first signal is used by a third node to obtain channel information; and the second signal is transmitted on the second transmission resource indicated by the fifth information, wherein the second signal is not used by the third node to obtain the channel information. For example, the transceiver 2601 can enable the communication apparatus 2600 to perform S1101 and S1104.

[0426] In another example, the transceiver 2601 is configured to receive ninth information, the ninth information being used by a first node to indicate a first transmission resource used for transmitting a first signal; and transmit a second signal on a second transmission resource, the second transmission resource partially overlaps with the first transmission resource, the first signal is used by a second node to obtain channel information, and the second signal is not used by the second node to obtain the channel information. For example, the transceiver 2601 can enable the communication apparatus 2600 to perform S1301 and S1302.

[0427] In another example, the transceiver 2601 is configured to transmit thirteenth information, the thirteenth information being used by a first node to indicate a first transmission resource used for transmitting a first signal; and transmit a second signal on a second transmission resource, the second transmission resource partially overlaps with the first transmission resource, the first signal is used by a second node to obtain channel information, and the second signal is not used by the second node to obtain the channel information. For example, the transceiver 2601 can enable the communication apparatus 2600 to perform S1501 and S1502.

[0428] The descriptions of the first signal, the second signal, the first transmission resource, the second transmission resource, the third transmission resource, the first information, the third information, the fifth information, the ninth information, and the thirteenth information can refer to the descriptions in the above method embodiments.

[0429] Specifically, all the related content of the steps involved by the second node in the method embodiments shown in FIG. 5, FIG. 10, FIG. 11, FIG. 13, FIG. 15 can be referred to the function description of the corresponding function module, which will not be repeated here. The communication apparatus 2600 is configured to perform the functions of the second node in the communication method shown in FIG. 5, FIG. 10, FIG. 11, FIG. 13, FIG. 15, and thus the same effects as the above-mentioned communication method can be achieved.

[0430] FIG. 27 shows a structural diagram of a communication apparatus 2700, which can be configured to perform the functions of the third node involved in the above-mentioned embodiments. As an implementation manner, the communication apparatus 2700 shown in FIG. 27 includes a transceiver 2701.

[0431] In an example, the transceiver 2701 is configured to receive second information, the second information being used to indicate a second transmission resource in which the third node transmits a second signal; the second signal is not used by the first node to obtain channel information; and transmit the second signal on the second transmission resource indicated by the second information; the second transmission resource partially overlaps with a first transmission resource, the first transmission resource being used by the second node to transmit a first signal, the first signal being used by the first node to obtain channel information. For example, the transceiver 2701 can enable the communication apparatus 2700 to perform S502, S504.

[0432] In another example, the transceiver 2701 is configured to receive fourth information, the fourth information being used to indicate a second transmission resource in which the third node transmits a second signal; the second transmission resource partially overlaps with a first transmission resource; the first transmission resource is used by the first node to transmit a first signal; the first signal is used by the second node to obtain channel information; and transmit the second signal on the second transmission resource; the second signal is not used by the second node to obtain channel information. For example, the transceiver 2701 can enable the communication apparatus 2700 to perform S1003, S1005.

[0433] In another example, the transceiver 2701 is configured to receive fourth information, the fourth information being used to indicate a second transmission resource in which the third node transmits a second signal; the second transmission resource partially overlaps with a first transmission resource; the first transmission resource is used by the first node to transmit a first signal; the first signal is used by the second node to obtain channel information; and transmit the second signal on the second transmission resource; the second signal is not used by the second node to obtain channel information. For example, the transceiver 2701 can enable the communication apparatus 2700 to perform S1003, S1005.

[0434] The related descriptions of the first signal, the second signal, the first transmission resource, the second transmission resource, the third transmission resource, the second information, the fourth information, and the sixth information can be referred to the above-mentioned method embodiments.

[0435] Specifically, all the related content of the steps involved by the third node in the method embodiments shown in FIG. 5, FIG. 10, FIG. 11, FIG. 13, FIG. 15 can be cited to the function description of the corresponding function module, which will not be repeated here. The communication device 2700 is used to execute the functions of the third node in the communication method shown in FIG. 5, FIG. 10, FIG. 11, FIG. 13, FIG. 15, so as to achieve the same effect as the above-mentioned communication method.

[0436] The processing unit mentioned above can be a processing module, or a processor or a controller. It can implement or execute various exemplary logical blocks, modules and circuits described in combination with the disclosure of the present application. The processor can also be a combination of computing functions, such as one or more microprocessor combinations, DSP and microprocessor combinations, etc. The transceiver unit can be a communication module, or a transceiver circuit or a communication interface, etc. Any of the above-mentioned communication devices can also include a storage unit for storing the program code and data of any communication device. The storage unit can be a storage module or a memory. When the processing module is a processor, the communication module is a communication interface, and the storage module is a memory, the communication device 2500, the communication device 2600 and the communication device 2700 involved in the embodiments of the present application can be a communication device 2800 as shown in FIG. 28. For example, the first node, the second node and the third node mentioned above can adopt the constituent structure shown in FIG. 28 or include the components shown in FIG. 28. FIG. 28 is a constituent diagram of a communication device 2800 provided by an embodiment of the present application. As shown in FIG. 28, the communication device 2800 can include a processor 2801, and optionally, a communication line 2802 and a communication interface 2803.

[0437] Further, the communication device 2800 can also include a memory 2804. The processor 2801, the memory 2804 and the communication interface 2803 can be connected through the communication line 2802.

[0438] The processor 2801 can be a central processing unit (CPU), a general processor network processor (NP), a digital signal processor (DSP), a microprocessor, a microcontroller, a programmable logic device (PLD) or any combination thereof. The processor 2801 can also be other communication devices with processing functions, such as circuits, devices or software modules, etc.

[0439] The communication line 2802 is used to transmit information between the components included in the communication device 2800.

[0440] The communication interface 2803 is configured to communicate with other devices or other communication networks. The other communication networks can be an Ethernet, a radio access network (RAN), a wireless local area network (WLAN), or the like. The communication interface 2803 can be a radio frequency module, a transceiver, or any communication device capable of communication. In this embodiment of this application, the communication interface 2803 is taken as a radio frequency module for example, and the radio frequency module can include an antenna, a radio frequency circuit, and the like. The radio frequency circuit can include a radio frequency integrated chip, a power amplifier, and the like.

[0441] The memory 2804 is configured to store instructions. The instructions can be a computer program.

[0442] The memory 2804 can be a read-only memory (ROM) or other types of static storage devices that can store static information and / or instructions, or can be a random access memory (RAM) or other types of dynamic storage devices that can store information and / or instructions, or can be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, a magneto-optical disk, a magnetic disk storage medium, or other magnetic storage devices, optical disk storage including a compact disk, a laser disk, an optical disk, a digital versatile disk, a Blu-ray disk, and the like.

[0443] It should be noted that the memory 2804 can exist independently of the processor 2801, or can be integrated with the processor 2801. The memory 2804 can be configured to store instructions or program codes or some data, and the like. The memory 2804 can be located in the communication device 2800, or can be located outside the communication device 2800, without limitation. The processor 2801 is configured to execute the instructions stored in the memory 2804, so as to implement the communication method provided by the embodiments of this application.

[0444] In an example, the processor 2801 can include one or more CPUs, such as CPU0 and CPU1 in FIG. 28.

[0445] As an optional implementation, the communication device 2800 includes a plurality of processors, for example, in addition to the processor 2801 in FIG. 28, the processor 2807 can also be included.

[0446] As an optional implementation, the communication apparatus 2800 further includes an output device 2805 and an input device 2806. The input device 2806 is a keyboard, a mouse, a microphone, or a joystick, etc., and the output device 2805 is a display screen, a speaker, or the like.

[0447] It should be noted that the communication apparatus 2800 can be a desktop computer, a laptop computer, a network server, a mobile phone, a tablet computer, a wireless terminal, an embedded device, a chip system, or a device having a similar structure to that shown in FIG. 28. In addition, the constituent structures shown in FIG. 28 do not constitute a limitation on the communication apparatus, which can include more or fewer components than those shown in FIG. 28, or combine certain components, or have a different arrangement of components.

[0448] In the embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices.

[0449] The embodiments of the present application further provide a computer-readable storage medium. All or part of the processes of the above-described method embodiments can be instructed by a computer program to relevant hardware, and the program can be stored in the above computer-readable storage medium. When the program is executed, the processes of the above-described method embodiments can be included. The computer-readable storage medium can be the communication apparatus of any of the preceding embodiments, such as an internal storage unit including a data transmission end and / or a data receiving end, for example, a hard disk or a memory of the first node or the second node. The above computer-readable storage medium can also be an external storage device of the above communication apparatus, for example, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the above first node or the second node. Further, the above computer-readable storage medium can include both the internal storage unit and the external storage device of the above communication apparatus. The above computer-readable storage medium is used to store the above computer program and other programs and data required by the above communication apparatus. The above computer-readable storage medium can also be used to temporarily store data that has been output or will be output.

[0450] It should be understood that, in the technical solutions of the present application, the collection, storage, use, processing, transmission, provision, and disclosure of user personal information are in compliance with relevant legal provisions and do not violate public order and good customs. For example, the processing of user personal information in the technical solutions of the present application is performed with the authorization of the user, and the same description is not repeated below.

[0451] It should be noted that the terms "first", "second", and the like in the description, claims and drawings of the application are intended to distinguish between similar objects, but are not intended to describe a particular sequential order. Moreover, the terms "comprises", "comprising", and the like are intended to cover both the inclusive and the exclusive case. For example, a process, method, system, product, or apparatus that comprises a list of steps or units is not limited to the listed steps or units, but can optionally further comprise additional steps or units not listed, or can optionally further comprise other steps or units inherent to the process, method, system, product, or apparatus.

[0452] It should be understood that in the present application, "at least one" refers to one or more, "multiple" refers to two or more, "at least two" refers to two or three and more, and "and / or" is used to describe the association relationship of the associated objects, which means that there can be three relationships, for example, "A and / or B" can represent three cases: only A, only B, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects. "At least one of the following" or the like means any combination of these items, including any combination of single or multiple items. For example, at least one of a, b or c can mean a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0453] It should be understood that in the embodiments of the present application, "B corresponding to A" means that B is associated with A. For example, B can be determined according to A. It should also be understood that determining B according to A does not mean that B is determined only according to A, but B can also be determined according to A and / or other information. In addition, "connection" appearing in the embodiments of the present application means direct connection or indirect connection and various connection modes to achieve communication between devices, which is not limited by the embodiments of the present application.

[0454] The "transmit" (transmit / transmission) appearing in the embodiments of the present application means bidirectional transmission, including sending and / or receiving actions, unless otherwise specified. Specifically, "transmit" in the embodiments of the present application includes data sending, data receiving, or data sending and data receiving. Or, the data transmission here includes uplink and / or downlink data transmission. The data can include channels and / or signals, uplink data transmission is uplink channel and / or uplink signal transmission, and downlink data transmission is downlink channel and / or downlink signal transmission. The "network" and "system" appearing in the embodiments of the present application represent the same concept, and the communication system is a communication network.

[0455] Those skilled in the art can clearly understand the communication device and method disclosed in the above embodiments from the description of the embodiments. For the convenience and brevity of description, only the grouping of the above functional modules is exemplified, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is grouped into different functional modules to complete all or part of the functions described above.

[0456] In several embodiments provided in the present application, it should be understood that the disclosed communication device and method can be implemented in other ways. For example, the above-described communication device embodiments are only illustrative, for example, the grouping of the modules or units is only a logical function grouping, and actual implementation can have another grouping manner, for example, a plurality of units or components can be combined or integrated into another device, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed units can be indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0457] The units described as separate components can or can not be physically separated, and the components displayed as units can be one physical unit or multiple physical units, that is, they can be located in one place or distributed to multiple different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0458] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0459] The integrated unit, if realized in the form of a software functional unit and sold or used as an independent product, can be stored in a readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application essentially or say the part that makes contributions to the prior art or all or part of the technical solutions can be embodied in the form of a software product, which is stored in a storage medium, including a plurality of instructions for causing an apparatus, such as a single-chip microcomputer, a chip, or a processor, to execute all or part of the steps of the method described in the embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk or an optical disk, and various storage program codes.

[0460] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any changes or replacements that are easily thought of by those skilled in the art within the technical scope of the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method characterized by comprising: The method is applied to a first node, and the method comprises: sending first information and sending second information; wherein the first information is used to indicate a first transmission resource of a first signal sent by a second node, and the second information is used to indicate a second transmission resource of a second signal sent by a third node; the second transmission resource and the first transmission resource partially overlap; the first signal is used for the first node to obtain channel information, and the second signal is not used for the first node to obtain channel information.

2. The method of claim 1, wherein, The method further comprises: receiving the first signal on a resource that does not completely overlap the first transmission resource and the second transmission resource.

3. The method of claim 1 or 2, wherein the first information is further used to indicate the first signal; and / or the second information is further used to indicate the second signal.

4. The method according to any one of claims 1 to 3, characterized in that, The first transmission resource comprises transmission resources in multiple dimensions, the second transmission resource comprises transmission resources in multiple dimensions, and the second transmission resource and the first transmission resource partially overlap, which comprises: the first transmission resource and the second transmission resource partially overlap in the transmission resources in the multiple dimensions; or the first transmission resource and the second transmission resource overlap in the transmission resources in part of the multiple dimensions.

5. The method of any one of claims 1-4, wherein the first transmission resource is a first time-frequency resource, and the second transmission resource is a second time-frequency resource; or the first transmission resource is a first time-domain resource, and the second transmission resource is a second time-domain resource; or the first transmission resource is a first frequency-domain resource, and the second transmission resource is a second frequency-domain resource.

6. The method of any one of claims 1-5, wherein the first signal is generated in the same way or in a different way from the second signal.

7. The method of any one of claims 1-6, wherein the first transmission resource comprises a plurality of transmission units, and the first signal transmitted on the plurality of transmission units is variable; the first signal transmitted on the plurality of transmission units is variable, which comprises one or more of the following: a content of the first signal transmitted on the plurality of transmission units is variable, a transmission power of the first signal transmitted on the plurality of transmission units is variable, a transmission antenna of the first signal transmitted on the plurality of transmission units is variable.

8. The method of any one of claims 1-7, wherein the second transmission resource comprises a plurality of transmission units, and the second signal transmitted on the plurality of transmission units is variable; the second signal transmitted on the plurality of transmission units is variable, which comprises one or more of the following: a content of the second signal transmitted on the plurality of transmission units is variable, a transmission power of the second signal transmitted on the plurality of transmission units is variable, a transmission antenna of the second signal transmitted on the plurality of transmission units is variable.

9. The method according to any one of claims 1 to 8, characterized in that, The second signal is a random signal.

10. A communication method characterized by comprising: The method applied to a second node comprises: receiving first information, the first information being used for indicating a first transmission resource in which the second node transmits a first signal; the first signal being used for a first node to obtain channel information; transmitting the first signal on the first transmission resource indicated by the first information, the first transmission resource partially overlapping with a second transmission resource, the second transmission resource being used for a third node to transmit a second signal, the second signal not being used for the first node to obtain channel information.

11. The method of claim 10, wherein, The first information is further used for indicating the first signal.

12. The method according to claim 10 or 11, characterized in that, The second signal is a random signal.

13. The method according to any one of claims 10-12, characterized in that, The first transmission resource comprises transmission resources in multiple dimensions, the second transmission resource comprises transmission resources in multiple dimensions, and the second transmission resource partially overlapping with the first transmission resource comprises: the transmission resources of the first transmission resource in the multiple dimensions partially overlapping with the transmission resources of the second transmission resource in the multiple dimensions; or the transmission resources of the first transmission resource in part of the multiple dimensions overlapping with the transmission resources of the second transmission resource in part of the multiple dimensions.

14. The method according to any one of claims 10-13, wherein: the first transmission resource is a first time-frequency resource; and the second transmission resource is a second time-frequency resource; or the first transmission resource is a first time-domain resource; and the second transmission resource is a second time-domain resource; or the first transmission resource is a first frequency-domain resource; and the second transmission resource is a second frequency-domain resource.

15. The method according to any one of claims 10-14, wherein: a generation manner of the first signal is the same as or different from a generation manner of the second signal.

16. The method according to any one of claims 10-15, wherein: the first transmission resource comprises a plurality of transmission units, and the first signal transmitted on the plurality of transmission units is variable; and the first signal transmitted on the plurality of transmission units is variable in one or more of the following aspects: a content of the first signal transmitted on the plurality of transmission units is variable, a transmission power of the first signal transmitted on the plurality of transmission units is variable, a transmission antenna of the first signal transmitted on the plurality of transmission units is variable.

17. A method of communication, comprising: The method applied to a third node comprises: receiving second information, the second information being used for indicating a second transmission resource in which the third node transmits a second signal; the second signal not being used for a first node to obtain channel information; transmitting the second signal on the second transmission resource indicated by the second information; the second transmission resource partially overlapping with a first transmission resource, the first transmission resource being used for a second node to transmit a first signal, the first signal being used for the first node to obtain channel information.

18. The method of claim 17, wherein, The second information is further used for indicating the second signal.

19. The method of claim 17 or 18, wherein, The second signal is a random signal.

20. The method according to any one of claims 17-19, characterized by, The first transmission resource comprises transmission resources in multiple dimensions, the second transmission resource comprises transmission resources in multiple dimensions, and the second transmission resource partially overlapping with the first transmission resource comprises: The first transmission resource partially overlaps with the second transmission resource in one or more of the plurality of dimensions. The first transmission resource partially overlaps with the second transmission resource in one or more of the plurality of dimensions.

21. The method of any of claims 17-20, wherein The first transmission resource is a first time-frequency resource; and the second transmission resource is a second time-frequency resource. The first transmission resource is a first time-frequency resource; and the second transmission resource is a second time-frequency resource. The first transmission resource is a first time-frequency resource; and the second transmission resource is a second time-frequency resource.

22. The method of any of claims 17-21, wherein The first signal is generated in a same manner as or in a different manner from the second signal.

23. The method of any of claims 17-22, wherein The second transmission resource comprises a plurality of transmission units, and the second signal transmitted on the plurality of transmission units is variable. The second signal transmitted on the plurality of transmission units is variable in one or more of the following aspects: The content of the second signal transmitted on the plurality of transmission units is variable. The transmission power of the second signal transmitted on the plurality of transmission units is variable. The transmission antenna of the second signal transmitted on the plurality of transmission units is variable.

24. A communications device, characterized by The communication device comprises a module or unit for performing the method of any of claims 1-9, or the communication device comprises a module or unit for performing the method of any of claims 10-16, or the communication device comprises a module or unit for performing the method of any of claims 17-23.

25. A communications device, characterized by The communication device comprises a processor configured to support the communication device to perform the method of any of claims 1-9, or the processor configured to support the communication device to perform the method of any of claims 10-16, or the processor configured to support the communication device to perform the method of any of claims 17-23.

26. A chip, characterized by The chip comprises a processor coupled to a memory, the memory configured to store a program or instructions, when the program or instructions are executed by the processor, the chip is caused to perform the method of any of claims 1-9, or the chip is caused to perform the method of any of claims 10-16, or the chip is caused to perform the method of any of claims 17-23.

27. A communication system, characterized by The communication system comprises the communication device for performing the method of any of claims 1-9, the communication device for performing the method of any of claims 10-16, and the communication device for performing the method of any of claims 17-23.

28. 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 of any one of claims 1-9, or cause the computer to perform the method of any one of claims 10-16, or cause the computer to perform the method of any one of claims 17-23.

29. A computer program product, characterised in that, The computer program product comprises computer instructions that, when executed on a computer, cause the computer to perform the method of any one of claims 1-9, or cause the computer to perform the method of any one of claims 10-16, or cause the computer to perform the method of any one of claims 17-23.

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