Communication method, device and system

Abstract

A communication method, apparatus and system, relating to the field of communications, can avoid exposure of target privacy, the method may comprise: a first node sending first information to a second node, the first information being used for indicating the second node to send a first transmission resource of a first signal, the second node sends a first signal on a first transmission resource indicated by the first information, the first signal is used for the first node to obtain channel information, the first node sends second information to a third node, the second information is used for indicating the third node to send a second transmission resource of the second signal, and the second transmission resource and the first transmission resource are partially overlapped; and the third node sends a second signal on a second transmission resource indicated by the second information, wherein the second signal is not used for the first node to obtain the channel information. The scheme of the invention can be widely applied to the fields of communication technology, artificial intelligence, Internet of Vehicles, smart home networking and the like.

Description

Technical Field

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

[0002] Wireless sensing technology refers to the process of analyzing the sensing signals "modulated" by the target (or object) to perceive and infer the surrounding environment, thereby determining relevant information about the target (such as objects, animals, or people), such as the target's distance, location, speed, movement, and behavior.

[0003] Among them, wireless signals, such as preamble signals, can be used as the aforementioned sensing signals. If the structure of the wireless signal is public, it may cause the problem of target privacy exposure. For example, attackers can easily obtain the sensing signal and then use it to perform channel estimation, obtain channel information, and infer relevant information about the target based on the channel state, thus exposing the target to attackers.

[0004] Therefore, the issue of how to avoid exposing the privacy of the target needs to be addressed urgently. Summary of the Invention

[0005] This application provides a communication method, apparatus, and system that can avoid the exposure of target privacy.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] Firstly, this application provides a communication method that can be executed by a first node, such as a first management node. Unless otherwise specified, "first node" in this application can refer to the first node itself, a component within the first node (e.g., a processor, radio frequency unit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the first node. The method includes: the first node sending first information and sending second information; wherein the first information is used to instruct a second node to send a first transmission resource for a first signal, and the second information is used to instruct a third node to send a second transmission resource for a second signal; the second transmission resource and the first transmission resource partially overlap; the first signal is used by the first node to obtain channel information, and the second signal is not used by the first node to obtain channel information.

[0008] Based on the method described in the first aspect, when the second 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 transmission of the first signal is interfered with by the second signal. This makes it impossible for the attacker to distinguish which transmission resources transmit the first signal, which transmit the second signal, and which transmit the superposition of the first and second signals after being transmitted through the channel, because the transmission resources overlap. 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 therefore cannot know the relevant information of the target, and cannot obtain the target's privacy by eavesdropping on the signal.

[0009] In one possible design, the first node receives the first signal on resources where the first and second transmission resources do not completely overlap. Based on this possible design, the first node can acquire the signal transmitted via the channel, rather than the superimposed signal of the first and second signals transmitted via the channel, thereby achieving the goal of the first node obtaining channel information based on the first signal.

[0010] In one 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 send the indicated first signal, reducing the latency and processing resources required for the second node to generate the first signal; and / or, the first node can send the indicated second signal, reducing the latency and processing resources required for the third node to generate the second signal.

[0011] Secondly, this application provides a communication method that can be executed by a second node, such as a first terminal node. Unless otherwise specified, the term "second node" in this application can refer to the second node itself, a component within the second node (e.g., a processor, radio frequency unit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the second node. The method includes: the second node receiving first information, the first information indicating a first transmission resource for the second node to transmit a first signal; transmitting the first signal on the first transmission resource indicated by the first information; the first signal being used by the first node to obtain channel information; the first transmission resource partially overlapping with a second transmission resource; the second transmission resource being used by a third node to transmit a second signal; and the second signal not being used by the first node to obtain channel information.

[0012] Based on the method described in the second aspect, when the second 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 transmission of the first signal is interfered with by the second signal. This makes it impossible for the attacker to distinguish which transmission resources transmit the first signal, which transmit the second signal, and which transmit the superposition of the first and second signals after being transmitted through the channel, because the transmission resources overlap. 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 therefore cannot know the relevant information of the target, and cannot obtain the target's privacy by eavesdropping on the signal.

[0013] Thirdly, this application provides a communication method that can be executed by a third node, such as a second terminal node. Unless otherwise specified, "third node" in this application can refer to the third node itself, a component within the third node (e.g., a processor, radio frequency unit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the third node. The method includes: the third node receiving second information, the second information indicating a second transmission resource for the third node to transmit a second signal; transmitting the second signal on the second transmission resource indicated by the second information; the second signal not being used by a first node to obtain channel information; the second transmission resource partially overlapping with a first transmission resource; the first transmission resource being used by the second node to transmit a first signal; and the first signal being used by the first node to obtain channel information.

[0014] Based on the method described in the third aspect, when the second 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 transmission of the first signal is interfered with by the second signal. This makes it impossible for the attacker to distinguish which transmission resources transmit the first signal, which transmit the second signal, and which transmit the superposition of the first and second signals after being transmitted through the channel, because the transmission resources overlap. 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 therefore cannot know the relevant information of the target, and cannot obtain the target's privacy by eavesdropping on the signal.

[0015] Fourthly, this application provides a communication method that can be executed by a first node, such as a first management node. Unless otherwise specified, "first node" in this application can refer to the first node itself, a component within the first node (e.g., a processor, radio frequency unit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the first node. The method includes: the first node receiving third information, sending fourth information, and sending a first signal on a first transmission resource. The third information is used to indicate the first transmission resource from which the first node sends the first signal, and the fourth information is used to indicate the second transmission resource from which the third node sends a second signal. The first and second transmission resources partially overlap. 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 channel information.

[0016] Based on the method described in the fourth 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 transmission of the first signal is interfered with by the second signal. This makes it impossible for the attacker to distinguish which transmission resources transmit the first signal, which transmit the second signal, and which transmit the superposition of the first and second signals after being transmitted through the channel, because the transmission resources overlap. Therefore, the attacker cannot parse the received signal. In other words, even if the attacker knows the transmission resources, parses the signals transmitted through the transmission resources, and performs channel estimation based on the parsing results to obtain the channel information corresponding to each signal, the attacker cannot know the correspondence between different signals and channel information, and therefore cannot know the relevant information of the target, and cannot obtain the target's privacy by eavesdropping on the signal.

[0017] In one possible design, the first node receives a first request message from the second node, which triggers the first node to send a fourth message. Based on this possible design, the first node can send the fourth message according to the first request message.

[0018] In one possible design, the first request information includes fourth information, which is used to instruct the third node on the second transmission resource for sending the second signal. Based on this possible design, the second node can obtain the fourth information through the first request information, and thus indirectly obtain the second transmission resource for sending the second signal.

[0019] In one possible design, the third information is also used to indicate the first signal; and / or, the fourth information is also used to indicate the second signal. Based on this possible design, the first node can send the indicated first signal, reducing the latency and processing resources required for the first node to generate the first signal.

[0020] Fifthly, this application provides a communication method that can be executed by a second node, such as a first terminal node. Unless otherwise specified, "second node" in this application can refer to the second node itself, a component within the second node (e.g., a processor, radio frequency unit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the second node. The method includes: the second node sending third information, the third information being used to instruct the first node to send a first signal on a first transmission resource; receiving the first signal on a resource where the first and second transmission resources do not completely overlap; the first and second transmission resources partially overlapping; the second transmission resource being used by the third node to send a second signal; the first signal being used by the second node to obtain channel information; and the second signal not being used by the second node to obtain channel information.

[0021] Based on the method described in the fifth 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 third information is also used to indicate the first signal. Based on this possible design, the first node can send the indicating first signal, reducing the latency and processing resources required for the first node to generate the first signal.

[0022] In one possible design, the second node sends a first request message to the first node, which triggers the first node to send a fourth message. The fourth message instructs the third node to send a second transmission resource for the second signal.

[0023] Based on this possible design, the first node can send the fourth information according to the first request information.

[0024] In one possible design, the first request information includes fourth information, which is used to instruct the third node to send the second transmission resource for the second signal. Based on this possible design, the second node can obtain the fourth information through the first request information, and thus indirectly obtain the second transmission resource for sending the second signal.

[0025] In one possible design, the fourth information is also used to indicate the second signal. Based on this possible design, the third node can send the second signal indicated by the fourth information, reducing the latency and processing resources required for the third node to generate the second signal.

[0026] Sixthly, this application provides a communication method that can be executed by a third node, such as a second terminal node. Unless otherwise specified, "third node" in this application can refer to the third node itself, a component within the third node (e.g., a processor, radio frequency unit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the third node. The method includes: the third node receiving fourth information, the fourth information being used to instruct the third node to transmit a second signal on a second transmission resource; transmitting the second signal on the second transmission resource; the second transmission resource partially overlapping with a first transmission resource; the first transmission resource being used by the first node to transmit a first signal; the first signal being used by the second node to obtain channel information; and the second signal not being used by the second node to obtain channel information.

[0027] Based on the method described in the sixth 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 transmission of the first signal is interfered with by the second signal. This makes it impossible for the attacker to distinguish which transmission resources transmit the first signal, which transmit the second signal, and which transmit the superposition of the first and second signals after being transmitted through the channel, because the transmission resources overlap. 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 therefore cannot know the relevant information of the target, and cannot obtain the target's privacy by eavesdropping on the signal.

[0028] In one possible design, the fourth information is also used to indicate the second signal. Based on this possible design, the third node can send the second signal indicated by the fourth information, reducing the latency and processing resources required for the third node to generate the second signal.

[0029] Seventhly, this application provides a communication method that can be executed by a first node, such as a first management node. Unless otherwise specified, "first node" in this application can refer to the first node itself, a component within the first node (e.g., a processor, radio frequency unit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the first node. The method includes: the first node sending fifth information and sixth information; sending a first signal on a first transmission resource; the fifth information instructing a second node to send a second signal on a second transmission resource; and the sixth information instructing a third node to receive the first signal on a third transmission resource; the first and second transmission resources partially overlap; the first signal is used by the third node to obtain channel information, and the second signal is not used by the third node to obtain channel information.

[0030] Based on the method described in the seventh 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 third transmission resource is a resource where the first and second transmission resources do not completely overlap. Based on this possible design, the third node can obtain the signal transmitted through the channel from the first signal, rather than the superimposed signal of the first and second signals transmitted through the channel, so as to achieve the purpose of the third node obtaining channel information based on the first signal.

[0031] In one possible design, the first node receives seventh information from the third node, which indicates the channel information between the first and third nodes, and this channel information is obtained by the third node based on the first signal.

[0032] Based on this possible design, the first node can obtain the channel information between the first node and the third node.

[0033] In one possible design, the first node receives eighth information from the third node, which is used to indicate the transmission resources corresponding to the channel information between the first node and the third node.

[0034] 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 third node, which facilitates the first node to perform sensing tasks related to the channel information.

[0035] In one possible design, the fifth information is also used to indicate the second signal; and / or, the sixth information is also used to indicate the first signal. Based on this possible design, the second node can send the second signal indicated by the fifth information, reducing the latency and processing resources required for the second node to generate the second signal; and / or, the third node can obtain the first signal to obtain channel information based on the first signal.

[0036] Eighthly, this application provides a communication method that can be executed by a second node, such as a first terminal node. Unless otherwise specified, "second node" in this application can refer to the second node itself, a component within the second node (e.g., a processor, radio frequency unit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the second node. The method includes: the second node receiving fifth information, the fifth information indicating a second transmission resource for the second node to transmit a second signal; transmitting the second signal on the second transmission resource indicated by the fifth information; the second signal not being used by a third node to obtain channel information; the second transmission resource partially overlapping with a first transmission resource; the first transmission resource being used by the first node to transmit a first signal; and the first signal being used by the third node to obtain channel information.

[0037] Based on the method described in the eighth 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 transmission of the first signal is interfered with by the second signal, so that after the attacker receives the first signal and the second signal superimposed after being transmitted through the channel, the attacker cannot distinguish which transmission resources transmit the first signal, which transmit the second signal, and which transmit the superimposed signal of the first and second signals because the transmission resources overlap. Therefore, the attacker cannot parse the received signal. In other words, even if the attacker knows the transmission resources, parses the signals transmitted through the transmission resources, and performs channel estimation based on the parsing results to obtain the channel information corresponding to each signal, the attacker cannot know the correspondence between different signals and channel information, and therefore cannot know the relevant information of the target, and cannot obtain the target's privacy by eavesdropping on the signal.

[0038] In one possible design, the fifth piece of information is also used to indicate the second signal. Based on this possible design, the second node can send the second signal indicated by the fifth piece of information, reducing the latency and processing resources required for the second node to generate the second signal.

[0039] Ninthly, this application provides a communication method that can be executed by a third node, such as a second terminal node. Unless otherwise specified, "third node" in this application can refer to the third node itself, a component within the third node (e.g., a processor, radio frequency unit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the third node. The method includes: the third node receiving sixth information, the sixth information indicating a third transmission resource for receiving a first signal; receiving the first signal on the third transmission resource; the first signal being transmitted by the first node on the first transmission resource; the first transmission resource partially overlapping with the second transmission resource; the second transmission resource being used by the second node to transmit a second signal; the first signal being used by the third node to obtain channel information; and the second signal not being used by the third node to obtain channel information.

[0040] Based on the method described 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 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 transmission of the first signal is interfered with by the second signal, so that after the attacker receives the first signal and the second signal superimposed after being transmitted through the channel, the attacker cannot distinguish which transmission resources transmit the first signal, which transmit the second signal, and which transmit the superimposed signal of the first and second signals because the transmission resources overlap. Therefore, the attacker cannot parse the received signal. In other words, even if the attacker knows the transmission resources, parses the signals transmitted through the transmission resources, and performs channel estimation based on the parsing results to obtain the channel information corresponding to each signal, the attacker cannot know the correspondence between different signals and channel information, and therefore cannot know the relevant information of the target, and cannot obtain the target's privacy by eavesdropping on the signal.

[0041] In one possible design, the sixth piece of information is also used to indicate the first signal. Based on this possible design, the third node can acquire the first signal to obtain channel information based on the first signal.

[0042] In one possible design, the third transmission resource is a resource where the first and second transmission resources do not completely overlap. Based on this possible design, the third node can acquire the signal transmitted by the first signal through the channel, rather than acquiring the superimposed signal of the first and second signals transmitted through the channel, thereby achieving the purpose of the third node obtaining channel information based on the first signal.

[0043] In one possible design, the third node sends a seventh message to the first node. The seventh message indicates the channel information between the first and third nodes, which is obtained by the third node based on the first signal.

[0044] Based on this possible design, the first node can obtain the channel information between the first node and the third node.

[0045] In one possible design, the third node sends an eighth message to the first node, which indicates the transmission resources corresponding to the channel information between the first and third nodes.

[0046] 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 third node, which facilitates the first node to perform sensing tasks related to the channel information.

[0047] Tenthly, this application provides a communication method that can be executed by a first node, such as a first management node. Unless otherwise specified, "first node" in this application can refer to the first node itself, a component within the first node (e.g., a processor, radio frequency unit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the first node. The method includes: the first node sending ninth information, the ninth information being used to instruct the first node to send a first signal on a first transmission resource; sending the first signal on the first transmission resource; the first transmission resource and a second transmission resource partially overlapping; the second transmission resource being used by the second node to send a second signal; the first signal being used by the second node to obtain channel information; and the second signal not being used by the second node to obtain channel information.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] Based on this possible design, the first node can obtain the channel information between the first node and the second node.

[0053] 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.

[0054] 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.

[0055] Eleventhly, this application provides a communication method that can be executed by a second node, such as a first terminal node. Unless otherwise specified, "second node" in this application can refer to the second node itself, a component within the second node (e.g., a processor, radio frequency unit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the second node. The method includes: the second node receiving ninth information, the ninth information being used to instruct the first node to transmit a first signal on a first transmission resource; transmitting a second signal on a second transmission resource, the second transmission resource and the first transmission resource partially overlapping; the first signal being used by the second node to obtain channel information; and the second signal not being used by the second node to obtain channel information.

[0056] Based on the method described in the eleventh 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 transmission of the first signal is interfered with by the second signal. This makes it impossible for the attacker to distinguish which transmission resources transmit the first signal, which transmit the second signal, and which transmit the superposition of the first and second signals after being transmitted through the channel, because the transmission resources overlap. 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 therefore cannot know the relevant information of the target, and cannot obtain the target's privacy by eavesdropping on the signal.

[0057] In one possible design, the ninth piece of information is also used to indicate the first signal. Based on this possible design, the second node can acquire the first signal to obtain channel information based on the first signal.

[0058] In one possible design, the second node can also receive or send a tenth message, which is used to indicate the second transmission resource. Based on this possible design, the second node can acquire the second transmission resource in multiple ways.

[0059] In one possible design, the tenth information is also used to indicate the second signal. Based on this possible design, the second node can send the second signal indicated by the tenth information, reducing the latency and processing resources required for the second node to generate the second signal.

[0060] In one possible design, the second node can also send an eleventh message to the first node. The eleventh message is used to indicate the channel information between the first node and the second node, which is obtained by the second node based on the first signal.

[0061] Based on this possible design, the first node can obtain the channel information between the first node and the second node.

[0062] In one possible design, the second node can also send a twelfth message, which is used to indicate the transmission resources corresponding to the channel information between the first node and the second node.

[0063] 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.

[0064] In one possible design, the second node can also receive the first signal on resources where the second transmission resource does not completely overlap with the first transmission resource.

[0065] Based on this possible design, the second node can obtain the signal transmitted through the channel from the first signal, rather than the superimposed signal of the first and second signals transmitted through the channel, so as to achieve the purpose of the second node obtaining channel information based on the first signal.

[0066] In a twelfth aspect, this application provides a communication method that can be executed by a first node, such as a first management node. Unless otherwise specified, "first node" in this application can refer to the first node itself, a component within the first node (e.g., a processor, radio frequency unit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the first node. The method includes: the first node receiving thirteenth information, the thirteenth information being used to instruct the first node to transmit a first signal on a first transmission resource; transmitting the first signal on the first transmission resource; the first transmission resource and a second transmission resource partially overlapping; the second transmission resource being used by the second node to transmit a second signal; the first signal being used by the second node to obtain channel information; and the second signal not being used by the second node to obtain channel information.

[0067] Based on the method described in the twelfth 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 transmission of the first signal is interfered with by the second signal, so that after the attacker receives the first signal and the second signal superimposed after being transmitted through the channel, the attacker cannot distinguish which transmission resources transmit the first signal, which transmit the second signal, and which transmit the superimposed signal of the first and second signals because the transmission resources overlap. Therefore, the attacker cannot parse the received signal. In other words, even if the attacker knows the transmission resources, parses the signals transmitted through the transmission resources, and performs channel estimation based on the parsing results to obtain the channel information corresponding to each signal, the attacker cannot know the correspondence between different signals and channel information, and therefore cannot know the relevant information of the target, and cannot obtain the target's privacy by eavesdropping on the signal.

[0068] In one possible design, the thirteenth piece of information is also used to indicate the first signal. Based on this possible design, the second node can acquire the first signal to obtain channel information based on the first signal.

[0069] In one possible design, the first node can also send or receive a fourteenth message, which indicates the second transmission resource. Based on this possible design, the second node can obtain the second transmission resource in multiple ways.

[0070] In one possible design, the fourteenth piece of 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 fourteenth piece of information, reducing the latency and processing resources required for the second node to generate the second signal.

[0071] In one possible design, the first node can also receive a fifteenth message from the second node, which indicates the channel information between the first and second nodes, obtained by the second node based on the first signal.

[0072] Based on this possible design, the first node can obtain the channel information between the first node and the second node.

[0073] In one possible design, the first node can also receive a sixteenth message from the second node, which indicates the transmission resources corresponding to the channel information between the first node and the second node.

[0074] 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.

[0075] In a thirteenth aspect, this application provides a communication method that can be executed by a second node, such as a first terminal node. Unless otherwise specified, "second node" in this application can refer to the second node itself, a component within the second node (e.g., a processor, radio frequency unit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the second node. The method includes: the second node transmitting thirteenth information, the thirteenth information being used by the first node to transmit a first signal on a first transmission resource; transmitting a second signal on a second transmission resource, the second transmission resource and the first transmission resource partially overlapping; the first signal being used by the second node to obtain channel information; and the second signal not being used by the second node to obtain channel information.

[0076] Based on the method described in aspect thirteen, 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 transmission of the first signal is interfered with by the second signal, so that after the attacker receives the first signal and the second signal superimposed after being transmitted through the channel, the attacker cannot distinguish which transmission resources transmit the first signal, which transmit the second signal, and which transmit the superimposed signal of the first and second signals because the transmission resources overlap. Therefore, the attacker cannot parse the received signal. In other words, even if the attacker knows the transmission resources, parses the signals transmitted through the transmission resources, and performs channel estimation based on the parsing results to obtain the channel information corresponding to each signal, the attacker cannot know the correspondence between different signals and channel information, and therefore cannot know the relevant information of the target, and cannot obtain the target's privacy by eavesdropping on the signal.

[0077] In one possible design, the thirteenth piece of information is also used to indicate the first signal. Based on this possible design, the second node can acquire the first signal to obtain channel information based on the first signal.

[0078] In one possible design, the second node can also receive or send a fourteenth message, which indicates the second transmission resource. Based on this possible design, the second node can obtain the second transmission resource in multiple ways.

[0079] In one possible design, the fourteenth information is also used to indicate a second signal. Based on this possible design, the second node can send the second signal indicated by the fourteenth information, reducing the latency and processing resources required for the second node to generate the second signal.

[0080] In one possible design, the second node can also send a fifteenth message to the first node. The fifteenth message is used to indicate the channel information between the first node and the second node, which is obtained by the second node based on the first signal.

[0081] Based on this possible design, the first node can obtain the channel information between the first node and the second node.

[0082] In one possible design, the second node can also send a sixteenth message, which is used to indicate the transmission resources corresponding to the channel information between the first node and the second node.

[0083] 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.

[0084] In one possible design, the second node can also receive the first signal on resources where the second transmission resource does not completely overlap with the first transmission resource.

[0085] Based on this possible design, the second node can obtain the signal transmitted through the channel from the first signal, rather than the superimposed signal of the first and second signals transmitted through the channel, so as to achieve the purpose of the second node obtaining channel information based on the first signal.

[0086] In combination with any of the above aspects, in one possible design, the first transmission resource includes transmission resources in multiple dimensions, 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 first transmission resource and the second transmission resource partially overlap in multiple dimensions; or, the first transmission resource and the second transmission resource overlap in some dimensions of multiple dimensions.

[0087] Based on this possible design, for different communication systems or different communication scenarios, the partial overlap of the first transmission resource and the second transmission resource can correspond to different resource overlaps, thereby improving the applicability of this application.

[0088] In combination with any of the above aspects, in one 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.

[0089] Based on this possible design, the first transmission resource and the second transmission resource can correspond to different resources for different communication systems or different communication scenarios, thereby improving the applicability of this application.

[0090] Combining any of the above aspects, in one possible design, the first signal is generated in the same way as the second signal or in a different way.

[0091] Based on this possible design, the first signal and the second signal can be generated in the same or different ways for different communication systems or different communication scenarios, which improves the applicability of this application.

[0092] In combination with any of the above aspects, in one possible design, the first transmission resource includes multiple transmission units, and the first signal transmitted on the multiple transmission units is variable; the first signal transmitted on the multiple transmission units being variable includes one or more of the following: the content of the first signal transmitted on the multiple transmission units is variable, the transmission power of the first signal transmitted on the multiple transmission units is variable, and the transmitting antenna of the first signal transmitted on the multiple transmission units is variable.

[0093] Based on this possible design, each node can dynamically / flexibly change the configuration of each first signal transmission. For example, the second node in the first aspect mentioned above can dynamically / flexibly change the configuration of each first signal transmission. The configuration of the first signal transmission can include the content of the first signal, the antenna for transmitting the first signal, the transmission power, etc. In this way, attackers cannot know the transmission pattern / characteristics of the first signal, and thus cannot analyze the received signal, thereby improving the privacy of the target.

[0094] In combination with any of the above aspects, in one possible design, the second transmission resource includes multiple transmission units, and the second signal transmitted on the multiple transmission units is variable; the variable nature of the second signal transmitted on the multiple transmission units includes one or more of the following: the content of the second signal transmitted on the multiple transmission units is variable, the transmission power of the second signal transmitted on the multiple transmission units is variable, and the transmitting antenna of the second signal transmitted on the multiple transmission units is variable.

[0095] Based on this possible design, each node can dynamically / flexibly change the configuration of the second signal sent each time. For example, the second node in the second aspect mentioned above can dynamically / flexibly change the configuration of the second signal sent each time. The configuration of the second signal sent can be the content of the second signal sent, the antenna for sending the second signal, the transmission power, etc. In this way, attackers cannot know the sending pattern / sending characteristics of the second signal, and thus cannot parse the received signal, thereby improving the privacy of the target.

[0096] Combining any of the above aspects, in one possible design, the second signal is a random signal.

[0097] In a fourteenth aspect, this application provides a communication device for transmitting starburst signals. The communication device can be applied to a first node, such as a first management node, in the first, fourth, seventh, tenth, or twelfth aspects described above, to implement the functions performed by the first node. The communication device can be the first node itself, or a chip, chip system, or system-on-a-chip (SoC) of the first node. The communication device can execute the functions performed by the first node through hardware or through corresponding software. The hardware or software includes one or more modules corresponding to the aforementioned functions.

[0098] For example: a module for sending first information; a module for sending second information. The first information is used to instruct a second node to send a first transmission resource, and the second information is used to instruct a third node to send a second transmission resource. The second transmission resource and the first transmission resource partially overlap. The first signal is used by the first node to obtain channel information, while the second signal is not used by the first node to obtain channel information.

[0099] Alternatively, 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 instruct the first node to send the first signal on a first transmission resource, the fourth information is used to instruct the third node to send a second signal on a second transmission resource, the second transmission resource and the first transmission resource partially overlap, 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 channel information.

[0100] Alternatively, 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 instruct the second node to send the second signal on a second transmission resource, the sixth information is used to instruct the third node to receive the first signal on a third transmission resource, the second transmission resource and the first transmission resource partially overlap, the first signal is used by the third node to obtain channel information, and the second signal is not used by the third node to obtain channel information.

[0101] Alternatively, for example: a module for sending a ninth message; a module for sending a first signal on a first transmission resource. The ninth message is used to instruct the first node to send the first signal on the first transmission resource. The second transmission resource partially overlaps with the first transmission resource. The second transmission resource is used by the 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 channel information.

[0102] Alternatively, for example: a module for receiving thirteenth information; a module for transmitting a first signal on a first transmission resource. The thirteenth information is used to instruct the first node to transmit the first signal on the first transmission resource. The second transmission resource partially overlaps with the first transmission resource. The second transmission resource is used by the second node to transmit 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 channel information.

[0103] In a fifteenth aspect, this application provides a communication device for transmitting starburst signals. The communication device can be applied to a second node, such as a first terminal node, in accordance with the second, fifth, eighth, eleventh, or thirteenth aspects described above, to implement the functions performed by the second node. The communication device can be the second node itself, or it can be a chip, chip system, or system-on-a-chip (SoC) of the second node. The communication device can execute the functions performed by the second node through hardware or through corresponding software. The hardware or software includes one or more modules corresponding to the aforementioned functions.

[0104] For example: a module for receiving first information; a module for transmitting a first signal on a first transmission resource. The first information is used to instruct a second node to transmit the first signal on the first transmission resource. The second transmission resource partially overlaps with the first transmission resource. The second transmission resource is used by a third node to transmit a second signal. The first signal is used by the first node to obtain channel information, and the second signal is not used by the first node to obtain channel information.

[0105] Alternatively, for example: a module for sending third information; a module for receiving a first signal on resources where the first and second transmission resources do not completely overlap. The third information is used to instruct the first node to send the first signal on the first transmission resource, the second transmission resource partially overlaps with the first transmission resource, the second transmission resource is used by the third 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 channel information.

[0106] Alternatively, for example: a module for receiving fifth information; a module for transmitting a second signal on a second transmission resource. The fifth information is used to instruct the second node to transmit the second signal on the second transmission resource. The second transmission resource partially overlaps with the first transmission resource. The first transmission resource is used by the first node to transmit the first signal, and the first signal is used by the third node to obtain channel information. The second signal is not used by the third node to obtain channel information.

[0107] Alternatively, for example: a module for receiving the ninth information; a module for transmitting the second signal on the second transmission resource. The ninth information is used to instruct the first node to transmit the first signal on the first transmission resource. The second transmission resource partially overlaps with the first transmission resource. The first signal is used by the second node to obtain channel information, while the second signal is not used by the second node to obtain channel information.

[0108] Alternatively, for example: a module for sending a thirteenth message; a module for sending a second signal on a second transmission resource. The thirteenth message is used to instruct the first node to send a first signal on a first transmission resource, the second transmission resource partially overlaps with the first transmission resource, 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 channel information.

[0109] In a sixteenth aspect, this application provides a communication device for transmitting starburst signals. The communication device can be applied to a third node, such as a second terminal node, in the third, sixth, or ninth aspects described above to implement the functions performed by the third node. The communication device can be the third node itself, or a chip, chip system, or system-on-a-chip (SoC) of the third node. The communication device can execute the functions performed by the third node through hardware or through corresponding software. The hardware or software includes one or more modules corresponding to the aforementioned functions.

[0110] For example: a module for receiving second information; a module for transmitting a second signal on a second transmission resource. The second information is used to instruct the third node to transmit the second signal on a second transmission resource. The second transmission resource partially overlaps with the first transmission resource. The first transmission resource is used by the second node to transmit the first signal. The first signal is used by the first node to obtain channel information, while the second signal is not used by the first node to obtain channel information.

[0111] Alternatively, for example: a module for receiving fourth information; a module for transmitting a second signal on a second transmission resource. The fourth information is used to instruct the third node to transmit the second signal on the second transmission resource. The second transmission resource partially overlaps with the first transmission resource. The first transmission resource is used by the first node to transmit the first signal, and the first signal is used by the second node to obtain channel information. The second signal is not used by the second node to obtain channel information.

[0112] Alternatively, for example: a module for receiving sixth information; a module for receiving a first signal on a third transmission resource. The sixth information is used to instruct the third node on the third transmission resource to receive the first signal. The first signal is transmitted by the first node on the first transmission resource, and the first and second transmission resources partially overlap. The second transmission resource is used by the second node to transmit a second signal, and the first signal is used by the third node to obtain channel information; the second signal is not used by the third node to obtain channel information.

[0113] In a seventeenth aspect, embodiments of this application provide a communication device including one or more processors; the one or more processors are configured to run computer programs or instructions, such that when the one or more processors execute the computer instructions or instructions, the communication method described in any one of the first to thirteenth aspects is performed.

[0114] In one possible design, the communication device further includes one or more memories coupled to one or more processors, the memories used to store the aforementioned computer programs or instructions. In one possible implementation, the memories are located outside the communication device. In another possible implementation, the memories are located inside the communication device. In embodiments of this application, the processor and memory may also be integrated into a single device, i.e., the processor and memory may be integrated together. In one possible implementation, the communication device further includes a transceiver for receiving and / or transmitting information.

[0115] In one possible design, the communication device further includes one or more communication interfaces coupled to one or more processors, and the communication interfaces are used to communicate with other modules outside the communication device.

[0116] In an eighteenth aspect, embodiments of this application provide a communication device, which includes an interface circuit and a logic circuit; the interface circuit is used to input and / or output information; the logic circuit is used to perform the communication method as described in any one of the first to thirteenth aspects, and to process and / or generate information based on the information.

[0117] In a nineteenth aspect, embodiments of this application provide a computer-readable storage medium storing computer instructions or programs that, when executed on a computer, cause the communication method described in any one of the first to thirteenth aspects to be performed.

[0118] In a twentieth aspect, embodiments of this application provide a computer program product containing computer instructions that, when run on a computer, causes the communication method described in any one of the first to thirteenth aspects to be executed.

[0119] In a twentieth aspect, embodiments of this application provide a computer program that, when run on a computer, causes the communication method described in any one of the first to thirteenth aspects to be executed.

[0120] In a twentieth aspect, embodiments of this application provide a chip, including: a processor coupled to a memory, the memory being used to store programs or instructions, wherein when the program or instructions are executed by the processor, a communication method as described in any one of the first to thirteenth aspects is executed.

[0121] In a twentieth aspect, embodiments of this application provide a communication system, which may include communication means for performing the method described in the first aspect or any possible design of the first aspect, communication means for performing the method described in the second aspect or any possible design of the second aspect, and communication means for performing the method described in the third aspect or any possible design of the third aspect; or, the communication system may include communication means for performing the method described in the fourth aspect or any possible design of the fourth aspect, communication means for performing the method described in the fifth aspect or any possible design of the fifth aspect, and communication means for performing the method described in the sixth aspect or any possible design of the sixth aspect; or the communication system may include means for performing The communication system may include a communication device for performing the method described in the seventh aspect or any possible design of the seventh aspect, a communication device for performing the method described in the eighth aspect or any possible design of the eighth aspect, and a communication device for performing the method described in the ninth aspect or any possible design of the ninth aspect; or, the communication system may include a communication device for performing the method described in the tenth aspect or any possible design of the tenth aspect, a communication device for performing the method described in the eleventh aspect or any possible design of the eleventh aspect; or, the communication system may include a communication device for performing the method described in the twelfth aspect or any possible design of the twelfth aspect, a communication device for performing the method described in the thirteenth aspect or any possible design of the thirteenth aspect.

[0122] The technical effects of any of the design methods in aspects fourteen through twenty-three can be found in the technical effects of any of the aspects one through thirteen mentioned above, and will not be elaborated upon further. Attached Figure Description

[0123] Figure 1 A schematic diagram of a sensing scene provided in an embodiment of this application;

[0124] Figure 2 A schematic diagram of a sensing scene provided in an embodiment of this application;

[0125] Figure 3 This application provides a schematic diagram of the architecture of a communication system.

[0126] Figure 4 This is a schematic diagram of the architecture of another communication system provided in an embodiment of this application;

[0127] Figure 5 A flowchart illustrating a communication method provided in an embodiment of this application;

[0128] Figure 6 A schematic diagram of a first transmission resource and a second transmission resource provided in an embodiment of this application;

[0129] Figure 7 A schematic diagram of a first transmission resource and a second transmission resource provided in an embodiment of this application;

[0130] Figure 8 A schematic diagram of a first transmission resource and a second transmission resource provided in an embodiment of this application;

[0131] Figure 9 A schematic diagram of a first transmission resource and a second transmission resource provided in an embodiment of this application;

[0132] Figure 10 A flowchart illustrating a communication method provided in an embodiment of this application;

[0133] Figure 11 A flowchart illustrating a communication method provided in an embodiment of this application;

[0134] Figure 12 A schematic diagram of a first transmission resource and a second transmission resource provided in an embodiment of this application;

[0135] Figure 13 A flowchart illustrating a communication method provided in an embodiment of this application;

[0136] Figure 14 A schematic diagram of a first transmission resource and a second transmission resource provided in an embodiment of this application;

[0137] Figure 15 A flowchart illustrating a communication method provided in an embodiment of this application;

[0138] Figure 16 This is a schematic diagram of the structure of a chip provided in an embodiment of this application;

[0139] Figure 17 This is a schematic diagram of another chip structure provided in an embodiment of this application;

[0140] Figure 18 This is a schematic diagram of the structure of another chip provided in an embodiment of this application;

[0141] Figure 19 This is a schematic diagram of the structure of another chip provided in an embodiment of this application;

[0142] Figure 20 A schematic diagram of a chip module framework provided in an embodiment of this application;

[0143] Figure 21 This is a schematic diagram of another chip module framework provided in an embodiment of this application;

[0144] Figure 22 A schematic diagram illustrating the framework of a software static strategy provided in an embodiment of this application;

[0145] Figure 23 A schematic diagram illustrating the framework of another software static strategy provided in an embodiment of this application;

[0146] Figure 24 A schematic diagram illustrating the framework of a hardware arbitration time-division (PTA) strategy provided in an embodiment of this application;

[0147] Figure 25 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0148] Figure 26 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0149] Figure 27 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0150] Figure 28 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application. Detailed Implementation

[0151] Before introducing the embodiments of this application, some technical terms involved in the embodiments of this application will be explained. It should be noted that the following explanations are for the purpose of making the embodiments of this application easier to understand, and should not be regarded as a limitation on the scope of protection claimed by the embodiments of this application.

[0152] In the evolution from fifth-generation (5G) communication technology to future communication technologies, integrated sensing and communication (ISAC) technology, also known as integrated sensing technology, is considered one of the key technologies for expanding the service capabilities of mobile communication networks. ISAC technology supports both communication and wireless sensing technologies. Its core idea is to add sensing capabilities to the mobile communication network, building the ability to detect, track, and image targets, thereby integrating communication and sensing capabilities into a single network, achieving harmonious coexistence and even mutual benefit.

[0153] Wireless sensing technology refers to inferring and perceiving the surrounding environment by analyzing sensing signals "modulated" by various obstacles, thereby determining the characteristics of targets (such as objects, animals, and people). These characteristics include the target's distance, orientation, speed, movement, and behavior.

[0154] Among them, sensing signals refer to signals used to sense (or detect) targets. Sensing signals are also called detection signals, linear frequency modulated signals, radar signals, radar sensing signals, radar detection signals, environmental sensing signals, etc. Sensing signals can be pulse signals or signals from wireless communication systems.

[0155] The target can be any tangible object in the environment that can reflect electromagnetic waves, such as mountains, forests, or buildings, and can also include mobile objects such as vehicles, drones, pedestrians, and terminal devices. In this application, the target can also be referred to as a sensed target, target object, detected target, sensed object, detected object, or sensed device, etc., and the embodiments of this application are not limited thereto.

[0156] When the sensing signal transmitted by the transmitting end is a publicly available wireless signal—meaning a signal known to all devices in the wireless communication system, such as a preamble signal predefined by the protocol—the receiving end can estimate the signal based on the received "modulated" sensing signal and the sensing signal not transmitted through the channel to obtain channel information between the transmitting and receiving ends. Analyzing this channel information can reveal privacy information such as the location and trajectory of targets within the sensing range of the transmitting end. However, because the sensing signal is publicly available, the aforementioned privacy information of the target is easily obtained by attackers, leading to the leakage of target privacy information.

[0157] For example, Figure 1 A sensing scenario provided in the embodiments of this application, such as Figure 1 As shown, Figure 1 The perception scenario shown includes terminal nodes, management nodes, targets, and attackers. Taking the perception signal as a preamble signal predefined by the protocol as an example... Figure 1 The terminal node in the process sends a preamble signal. Figure 1 The management node can receive the preamble signal transmitted through the channel. Based on the preamble signal transmitted through the channel and the preamble signal not transmitted through the channel (i.e., the preamble signal predefined by the protocol), it performs channel estimation to obtain the channel information between the terminal node and the management node. Further analysis of this channel information can yield... Figure 1 The location, trajectory, and other private information of the target are protected. Furthermore, because the preamble signal is publicly available, it allows for the collection of sensitive information. Figure 1 Attackers can also perform channel estimation based on the received preamble signal after it has been transmitted through the channel and the preamble signal before it has been transmitted through the channel, thereby obtaining... Figure 1The location, trajectory, and other private information of the target are compromised. Figure 1 The issue of privacy information leakage among Chinese citizens.

[0158] In wireless communication, preambles are primarily used for synchronization, channel estimation, and signal detection. A preamble is a special sequence of signals transmitted in a wireless communication system, typically located at the beginning of a data packet.

[0159] In one example, the sender addresses the issue of target privacy leakage by transmitting variable sensing signals that are unknown to the attacker. For instance, the sender transmits different sensing signals at different times, preventing the attacker from obtaining inaccurate channel information between the sender and receiver by analyzing the sensing signals received at different times after transmission through the channel, thus resolving the target privacy leakage problem.

[0160] 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.

[0161] 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.

[0162] 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.

[0163] For example, Figure 2 A sensing scenario provided in the embodiments of this application, such as Figure 2 As shown, Figure 2 The perception scenario shown 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. Figure 2 The terminal node in the process sends a sensing signal X for sensing the target.T And the perceived signal X T It changes over time, at time T1 Figure 2 The terminal node in the process sends a sensing signal X1 at time T1. Figure 2 Attacker A's antenna 1 can receive signals via the channel. Transmitted sensing signal Y 11 Sensing signals Channel For the channel between the terminal node and antenna 1, at time T1 Figure 2 Attacker A's antenna 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 will receive Y at time T1 11 and Y 12 Division can yield Divide by The attacker, based on the value, Divide by The value can reveal the target's behavior and other private information, thus exposing the target's private information.

[0164] To avoid exposing the target's privacy, this application provides a communication method. In this method, 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), it can also transmit another signal (referred to as a second signal) on another transmission resource (referred to as a second transmission resource) that partially overlaps with the first transmission resource. That is, the transmission of the first signal is interfered with by the second signal. This is so that when an attacker receives the first signal and the second signal superimposed after being transmitted through the channel, the overlapping transmission resources make it impossible for the attacker to distinguish which transmission resources transmit the first signal, which transmit the second signal, and which transmit a superposition of the first and second signals. Therefore, the attacker cannot parse the received signal. In other words, even if the attacker knows the transmission resources, parses the signals transmitted through the transmission resources, and performs channel estimation based on the parsing results to obtain the channel information corresponding to each signal, the attacker cannot know the correspondence between different signals and channel information, and therefore cannot obtain the target's relevant information, and cannot obtain the target's privacy by eavesdropping on the signal.

[0165] This application can be applied to different communication systems, such as communication systems with two nodes or communication systems with three or more nodes, without limitation. The implementation of this application varies for different system architectures, and the specific implementation can be found in the following communication method.

[0166] The technical solutions of this application embodiment can be used in various communication systems, including 3GPP communication systems such as Long Term Evolution (LTE), 4th Generation (4G), 5th Generation (5G), LTE and 5G hybrid networking systems, integrated communication and sensing systems, non-terrestrial networks (NTN), device-to-device (D2D) communication systems, vehicle-to-everything (V2X) communication systems, machine-type communication (MTC) systems, Internet of Things (IoT) systems, or other future communication systems. The communication system can also be a non-3GPP communication system; there is no limitation.

[0167] This application supports the Spark Link / NearLink protocol, or it supports IEEE protocols such as IEEE 802.11be / WiFi 7 / EHT (extremely high throughput), IEEE 802.11bn / WiFi 8 / UHR (ultra high reliability), IEEE IMMW (Integrated mmWave), IEEE 802.15.4ab / UWB (ultra wideband), and IEEE 802.11bf / Sensing.

[0168] The technical solutions of this application embodiment can also be applied to short-range wireless communication systems and wireless communication systems that support longer-distance transmission (e.g., 1-18km, over 18km) (e.g., the future StarSpark wireless communication system). The short-range wireless communication system can include short-range wireless communication technologies (e.g., StarSpark 1.0 technology), which have advantages such as ultra-low latency, ultra-high reliability, and precise synchronization, making them suitable for applications in smart cars, smart homes, smart terminals, and smart manufacturing. For example, applications in smart car scenarios include: immersive in-vehicle sound field & noise reduction, wireless interactive screen projection, and 360-degree panoramic surround view, which can achieve an immersive interactive experience and improve vehicle safety.

[0169] Wireless communication systems that support longer transmission distances (e.g., 1–18 km) mainly include future StarSpark wireless communication systems, such as StarSpark 2.0 and StarSpark 3.0 wireless communication systems. They are not only suitable for communication scenarios with low latency requirements, such as the aforementioned vehicle communication and industrial control scenarios, but also for communication scenarios with low latency requirements.

[0170] The communication systems described above are merely illustrative examples, and are not limited to those described herein. The communication systems provided in this application do not impose any limitations on the solutions described herein. This will be explained uniformly here and will not be repeated below.

[0171] Figure 3 A schematic diagram of a communication system architecture provided in this application embodiment, such as... Figure 3 As shown, the communication system may include a first node, a second node, and a third node. Under different communication systems... Figure 3 The first, second, and third nodes in the process can correspond to different devices.

[0172] For example, under the Star Flash system, Figure 3 The first node in the process can be the sensing initiation node. Figure 3 The second node in the process can be the first sensing and response node. Figure 3 The third node can be the second sensing response node. The sensing initiating node is the device that executes the sensing task; it can be a grant node (G node) or a terminal node (T node). The sensing response node is the device that collaborates with the sensing initiating node to execute the sensing task; it can be a grant node or a terminal node. For example, Figure 3 The first node in the list can be the management node. Figure 3 The second node can be the first terminal node. Figure 3 The third node in the process can be the second terminal node.

[0173] For example, under the Star Flash system, Figure 3 The first node in the process can be the first sensing and response node. Figure 3 The second node in the process can be the sensing initiation node. Figure 3 The third node in the process can be the second sensing and response node. For example, Figure 3 The first node in the list can be the management node. Figure 3 The second node can be the first terminal node. Figure 3 The third node in the process can be the second terminal node.

[0174] For example, in a wireless fidelity (WiFi) system, Figure 3The first node in the list can be an access point (AP). Figure 3 The second node can be the first station (STA). Figure 3 The third node in the network can be the second station; or, Figure 3 The first node in the process can be the first access point. Figure 3 The second node can be a site. Figure 3 The third node in the network can be a second access point. An access point can refer to a device used by a wireless local area network (WLAN) user terminal to access the network, and a site can refer to a terminal device in the WLAN, such as a laptop's network card or a mobile phone's wireless module.

[0175] Figure 4 This is a schematic diagram of another communication system architecture provided in an embodiment of this application, such as... Figure 4 As shown, the communication system may include a first node and a second node. Under different communication systems... Figure 4 The first and second nodes in the process can correspond to different devices.

[0176] For example, under the Star Flash system, Figure 4 The first node in the process can be the sensing initiation node. Figure 4 The second node in the process can be a sensing and response node. For example, Figure 4 The first node in the list can be the management node. Figure 4 The second node in the list can be a terminal node; or, Figure 4 The first node in the list can be a terminal node. Figure 4 The second node can be a management node.

[0177] For example, under the Star Flash system, Figure 4 The first node in the process can be a sensing and response node. Figure 4 The second node in the process can be the sensing initiation node. For example, Figure 4 The first node in the list can be the management node. Figure 4 The second node in the list can be a terminal node; or, Figure 4 The first node in the list can be a terminal node. Figure 4 The second node can be a management node.

[0178] For example, in a WiFi system, Figure 4 The first node in the list can be an access point. Figure 4 The second node in the list can be a site; or, Figure 4 The first node in the list can be a site. Figure 4 The second node can be an access point.

[0179] The aforementioned management node can be a node in a wireless short-range communication system that has resource scheduling functions and sends control information such as resource management information and / or data scheduling information.

[0180] For example, the management node (G node) is located on the network side of the aforementioned communication system, used to help terminal nodes achieve wireless access, and is a device with wireless transceiver capabilities or a chip or chip system that can be set in the device. This management node includes, but is not limited to: network devices, access network devices, access network nodes, radio access network (RAN) nodes, RAN entities or access nodes, base stations, evolved NodeBs (eNodeBs), access points (APs), transmission reception points (TRPs or transmission points (TPs), next-generation NodeBs (gNBs), next-generation base stations in future mobile communication systems, base stations in future mobile communication systems, or access points (APs) in wireless fidelity (Wi-Fi) systems. The management node can be a macro base station, micro base station or indoor station, relay node or 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 of antenna panels (including multiple antenna panels) of a 5G base station, or it can be a network node constituting a gNB, TRP, TP, or transmission measurement function (TMF), such as a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), a radio unit (RU), or a roadside unit (RSU) with base station functionality. Optionally, the management node can also be a server, wearable device, vehicle, or in-vehicle equipment. 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 autonomous driving, a central controller in a smart factory / smart home, or a handheld or automatic control remote sensor for flight equipment. Optionally, the management node can also be a control device such as a central control or control panel, such as a drone controller or a control unit in industrial control.All or part of the functions of the management node in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (such as a cloud platform). The management node in this application can also be a logical node, logical module, or software capable of implementing all or part of the management node functions.

[0181] In this application embodiment, the form of the management node is not limited. The device used to implement the function of the management node can be the management node itself; it can also be a device that supports the management node in implementing this function, such as a chip system. The device can be installed in the management node or used in conjunction with the management node.

[0182] The aforementioned terminal node can be a node in a wireless short-range communication system that receives control information such as resource management information and / or data scheduling information sent by the management node, and performs data transmission or reception based on such control information. For ease of description, the short-range protocol in the wireless short-range communication system is referred to as the Star Flash protocol in this disclosure.

[0183] For example, a terminal node (T node) is a device, equipment, module, chip, or chip system with transceiver functions. The terminal node may also be referred to as terminal equipment, user equipment (UE), access terminal, subscriber unit, user station, mobile station (MS), mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, or user equipment. The terminal nodes in the embodiments of this application can be mobile phones, cellular phones, smartphones, tablets, mice, remote controls, styluses, set-top boxes, routers, cameras, screens, smart screens, wireless data cards, personal digital assistant computers (PDAs), wireless modems, handsets, laptop computers, smartwatches, smart bracelets, wireless headphones, electronic whiteboards, machine-type communication (MTC) terminals, computers with wireless transceiver capabilities, virtual reality (VR) terminals, augmented reality (AR) terminals, smart home devices (e.g., refrigerators, televisions, air conditioners, washing machines, rice cookers, table lamps, electricity meters, etc.), smart robots, robotic arms, workshop equipment, wireless terminals in autonomous driving, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical care, wireless terminals in smart grids, and transportation security. Wireless terminals in various applications include those related to safety, smart cities, smart homes, in-vehicle terminals, in-vehicle screens, in-vehicle audio systems, car keys, roadside units (RSUs) with terminal functions, and flying equipment (e.g., intelligent robots, hot air balloons, drones, airplanes). The terminal node in this application can also be an in-vehicle module, in-vehicle component, in-vehicle chip, or in-vehicle unit integrated into a vehicle as one or more components or units. The terminal node can also be other devices with terminal functions; for example, it can be a device that performs terminal functions in device-to-device (D2D) communication.

[0184] The embodiments of this application do not limit the device form of the terminal. The device used to implement the function of the terminal node can be the terminal node itself; it can also be a device that supports the terminal node in implementing the function, such as a chip system. The device can be installed in the terminal node or used in conjunction with the terminal node. In the embodiments of this application, the chip system can be composed of chips or can include chips and other discrete devices.

[0185] In the StarScan protocol corresponding to StarScan technology, there are uplink and downlink transmissions between the aforementioned G node and T node. Uplink transmission is achieved through the T link, which is the link between the T node and the G node, and can also be called the uplink. Downlink transmission is achieved through the G link, which is the link between the G node and the T node, and can also be called the downlink.

[0186] In this embodiment, the communication device has wireless communication capabilities and can be configured with multiple antennas. These multiple antennas may include at least one transmitting antenna for transmitting signals and at least one receiving antenna for receiving signals. Additionally, each communication device also includes a transmitter chain and a receiver chain. Those skilled in the art will understand that these chains may include multiple components related to signal transmission and reception (e.g., processors, modulators, multiplexers, demodulators, demultiplexers, or antennas). The communication device can be a network device or a terminal device, and there is no limitation thereto.

[0187] It should be noted that the solutions in the embodiments of this application can also be applied to other communication systems, and the corresponding names can be replaced by the names of the corresponding functions in other communication systems.

[0188] It should be noted that the system described in the embodiments of this application is for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and does not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0189] The following is combined with Figure 3 or Figure 4 The communication system shown is illustrated using the interaction between communication devices as an example to describe the communication method provided in the embodiments of this application. It should be noted that in the following embodiments of this application, the message names, parameter names, or information names between communication devices are merely examples, and may be other names in other embodiments. The method provided in this application does not specifically limit these names.

[0190] It is understood that in the embodiments of this application, each communication device may execute some or all of the steps in the embodiments of this application. These steps or operations are merely examples, and the embodiments of this application may also execute other operations or variations thereof. Furthermore, the steps may be executed in different orders as presented in the embodiments of this application, and it is not necessary to execute all the operations in the embodiments of this application.

[0191] It is understood that this application uses a communication device as an example to illustrate the interaction, but this application does not limit the execution subject of the interaction. For example, the method executed by the communication device in this application can also be executed by a module (e.g., a chip, chip system, or processor) applied to the communication device, or it can be implemented by a logic node, logic module, or software that can implement all or part of the functions of the communication device.

[0192] In this application embodiment, the number of nodes sending the second signal is not limited. For example, in embodiments one to five below, there may be one or more nodes for sending the second signal. Taking embodiment one as an example, as a possible implementation, Figure 3 The communication system shown has a third node, which is used to send the second signal; as another possible implementation, Figure 3 In the communication system shown, there are other nodes besides the third node that send a second signal.

[0193] Optionally, when there are multiple nodes sending a second signal, the second signals sent by the multiple nodes can be the same or different, without restriction.

[0194] The following is combined with Figure 3 The communication system shown illustrates a communication method provided in an embodiment of this application.

[0195] Example 1:

[0196] The following is based on Figure 3 In the communication system shown, the system includes a first node, a second node, and a third node. The first node is a sensing initiating node, such as a management node; the second node is a first sensing response node, such as a first terminal node; and the third node is a second sensing response node, such as a second terminal node. This example illustrates a communication method provided in this application. Figure 5 As shown, the method may include:

[0197] S501: The first node sends the first information to the second node, and the second node receives the first information from the first node.

[0198] The first information can be used to indicate the first transmission resource for sending the first signal, and the first signal can be used to obtain channel information.

[0199] For example in Figure 5 In a corresponding embodiment, the first information can be used to instruct the second node to send a first transmission resource. The first signal can be used by the first node to obtain channel information, which characterizes the state of the channel between the second node and the first node. In this application, the type of channel information is not limited; for example, the channel information can be channel state information (CSI), channel frequency response (CFR), or channel impulse response (CIR), etc.

[0200] Optionally, the channel information obtained based on the first signal can be used for target sensing. In this case, the first signal can be described as a sensing signal, which can be a reference signal. Specifically, the sensing signal can be found in the relevant descriptions above, and will not be repeated here.

[0201] In this application, the first transmission resource for transmitting the first signal can be understood as a first transmission resource for transmitting the first signal, or a first transmission resource for carrying the first signal, or a first transmission resource for transmitting / transmitting the first signal, etc., and is not limited thereto. Optionally, the first transmission resource may include time-domain resources, frequency-domain resources, or spatial-domain resources, etc.

[0202] In this application, the first information can directly indicate the first transmission resource or indirectly indicate the first transmission resource. Taking the first transmission resource as an example (where the first transmission resource is a first time-frequency resource), the first information can include a frequency point and a radio frame index to directly indicate the first transmission resource; or, the first information can include a frequency band index, the start time of a time slot, etc., to indirectly indicate the first transmission resource.

[0203] Optionally, in order to perform channel estimation and obtain the channel information corresponding to the first signal, the first node also needs to acquire the first signal and indicate the first signal to the second node, so that the second node can send the first signal through the first transmission resource based on the instruction of the first node, so that after the first node receives the signal after the first signal is transmitted through the channel, it can perform channel estimation based on the received signal and the first signal to obtain the channel information H.

[0204] In one example, the first node can indicate a first signal to the second node through first information. That is, the first information can also be used to indicate the first signal, enabling the first node to obtain the first signal and further obtain channel information of the channel traversed by the first signal. In this application, the first information can directly or indirectly indicate the first signal. When the first information directly indicates the first signal, the first information may contain the first signal or a bit sequence corresponding to the first signal; when the first information indirectly indicates the first signal, the first information may contain the generation method of the first signal, or the first information may contain an index of a reference signal, where the reference signal indicated by the index is the first signal. The index of the reference signal is used to indicate reference signals in the reference signal resource pool, where the reference signals are predefined by the protocol or pre-negotiated and determined by the first node and the second node.

[0205] In another example, the first node can indicate the first signal to the second node using information other than the first information, such as the first indication information. Specifically, the way the first node indicates the first signal to the second node using other information is the same as the way the first node indicates the first signal to the second node using the first information described above, and will not be repeated here.

[0206] In this application, the signaling / message carrying information is not limited. Taking the first information as an example, the first information can be included in a radio frame, or in control information, or in higher-layer signaling. In this application, the radio frame can be a sensing measurement request frame or a sensing measurement response frame. The control information can be downlink control information (DCI) or link control information sent by the G node, etc. The higher-layer signaling can be radio resource control (RRC) signaling. When the higher-layer signaling is signaling in the StarSignal system, it can specifically refer to higher-layer signaling. Alternatively, the signaling can be signaling at the basic application layer, basic service layer, data link layer, or control layer of the StarSignal system, or it can be signaling transmitted at layers above the physical layer. In some implementations, the signaling of the StarSignal system is extended resource control signaling, such as XRC signaling.

[0207] S502: The first node sends the second information to the third node, and the third node receives the second information from the first node.

[0208] The second information can be used to indicate the second transmission resource for sending the second signal, and the second signal may not be used to obtain channel information.

[0209] For example in Figure 5In a corresponding embodiment, the second information is used to instruct the third node to send the second signal to the second transmission resource, and the second signal may not be used by the first node to obtain channel information.

[0210] Optionally, the second signal is not used to obtain channel information; in this case, the second signal can be described as a random signal.

[0211] 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 (referred to as a ZC sequence), and the root value u of the ZC sequence changes randomly; or the second signal can be a signal generated by a pseudo-random sequence, which can be a Gold sequence or a longest linear feedback shift register sequence (referred to as an m sequence); or the second signal can be a signal modulated by a random bit stream.

[0212] Optionally, the second signal can be generated in a different way than the first signal. For example, the second signal can be generated by a ZC sequence, and the first signal can be generated by a pseudo-random sequence; or, the second signal can be generated by a ZC sequence, and the first signal can be any signal in the reference signal resource pool predefined by the protocol.

[0213] Optionally, the second signal can be generated in the same way as the first signal. For example, the first signal can be generated from a first ZC sequence, and the second signal can be generated from a second ZC sequence, wherein 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 one signal in a predefined reference signal resource pool of the protocol, and the second signal can be another signal in a predefined reference signal resource pool of the protocol.

[0214] In this application, any node (such as a third node) sends a second signal to interfere with the attacker's acquisition of information about the channel traversed by the first signal, thereby preventing the attacker from obtaining the target's privacy information. Therefore, the second signal can be alternatively described as an interference signal or a random signal, and these three terms can be arbitrarily interchanged. This is a unified description here, and subsequent embodiments will not elaborate further. In addition, the second signal / interference signal / random signal may have other names, and this application does not specifically limit their names.

[0215] In this application, the second information can directly indicate a specific second transmission resource or indirectly indicate a second transmission resource. The relevant description can be referred to the description of the first information indicating the first transmission resource, and will not be repeated here.

[0216] In one example, multiple pieces of information in this application can be carried in a single signaling / message. Taking the second and first pieces of information in Embodiment 1 as an example, the first and second pieces of information can be carried in a single signaling / message. For example, the first and second pieces of information can be carried in a signaling / message sent simultaneously by the first node to two nodes.

[0217] In another example, multiple pieces of information in this application can be carried in different signaling / messages. Taking the second information and the first information in Embodiment 1 as an example, the first information can be carried in the sensing measurement request frame, and the second information can be carried in the DCI.

[0218] Optionally, the first node can allocate a second signal to the third node, so that the third node can send the second signal allocated by the first node. Therefore, the third node needs to obtain the second signal allocated by the first node.

[0219] In one example, the first node can indicate a second signal to the third node through the second information. That is, the second information can also be used to indicate a second signal, so that the third node obtains the second signal allocated by the first node. In this application, the second information can directly or indirectly indicate the second signal. When the second information directly indicates the second signal, the second information can contain the second signal; when the second information indirectly indicates the first signal, the second information can contain the generation method of the second signal, or the second information can contain an index of a random signal or an index of an 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 in advance by the first node and the second node.

[0220] In another example, the first node can indicate a second signal to the third node using information other than the first information, such as second indication information. Specifically, the way the first node indicates a second signal to the third node using other information is the same as the way the first node indicates a second signal to the third node using second information described above, and will not be repeated here.

[0221] In this application, the second transmission resource for transmitting the second signal can be understood as a second transmission resource for transmitting the second signal, or a second transmission resource for carrying the second signal, or a second transmission resource for transmitting / transmitting the second signal, etc., and is not limited thereto. Optionally, the second transmission resource may include time-domain resources, frequency-domain resources, or spatial-domain resources, etc.

[0222] In this application, the second transmission resource and the first transmission resource partially overlap.

[0223] Optionally, in this application, transmission resources (such as first transmission resources, second transmission resources, and third transmission resources) may include one or more of time-domain resources, frequency-domain resources, and spatial resources. Spatial resources can be understood as spatial resources used for signal transmission. In wireless communication, spatial resources can be divided using space division multiplexing (SDM) technology. For example, SDM technology can be used to divide space into different channels, allowing multiple signals to be transmitted using different channels within the same time period and frequency band. Time-domain resources can be understood as time resources used for signal transmission. In wireless communication, time resources can be represented by time units such as frames, subframes, time slots, and symbols. Frequency-domain resources can be understood as frequency resources used for signal transmission; for example, subcarriers are the basic unit of frequency-domain resources.

[0224] Optionally, the transmission resources may include transmission resources in Y dimensions, where Y is an integer greater than 1, meaning the transmission resources may include transmission resources in multiple dimensions. For example, the transmission resources in Y dimensions may be transmission resources in at least two of the following dimensions: spatial dimension (spatial domain resources), time dimension (time domain resources), and frequency dimension (frequency domain resources). For instance, it may be a transmission resource including spatial domain resources, time domain resources, and frequency domain resources, or it may be a transmission resource including any two of the following three resources: spatial domain resources, time domain resources, and frequency domain resources.

[0225] Optionally, when the transmission resources include transmission resources across multiple dimensions, the partial overlap between the second and first transmission resources may include any of the following:

[0226] (1) The transmission resources of the first transmission resource and the transmission resources of the second transmission resource in multiple dimensions partially overlap. This can be understood as the transmission resources of the first transmission resource and the second transmission resource partially overlapping in any of the multiple dimensions. This can be achieved in the following ways:

[0227] Method 1: The transmission resources of the second transmission resource in any of the multiple dimensions are all part of the transmission resources of the first transmission resource in any of the multiple dimensions.

[0228] For example, transmission resources in multiple dimensions can include time-domain resources and frequency-domain resources. The first transmission resource can include a first time-domain resource and a first frequency-domain resource, and the second transmission resource can include a second time-domain resource and a 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.

[0229] Method 2: There is partial overlap between the transmission resources of the second transmission resource in any dimension of multiple dimensions and the transmission resources of the first transmission resource in any dimension of multiple dimensions.

[0230] For example, the transmission resources in multiple dimensions can be transmission resources including time domain resources and frequency domain resources. The first transmission resource can include a first time domain resource and a first frequency domain resource, and the second transmission resource can include a second time domain resource and a second frequency domain resource. Among them, there are partial overlapping resources between the second time domain resource and the first time domain resource, and there are partial overlapping resources between the second frequency domain resource and the first frequency domain resource.

[0231] Exemplarily, Figure 6 is a schematic diagram of a first transmission resource and a second transmission resource provided in an embodiment of the present application. As Figure 6 shown in (a) of, the second transmission resource is part of the first transmission resource, and the overlapping resource between the second transmission resource and the first transmission resource is the second transmission resource; as Figure 6 shown in (b) of, there are partial overlapping resources between the time domain resources in the second transmission resource and the time domain resources in the first transmission resource, and this overlapping resource is t2 - t3. There are partial overlapping resources between the frequency domain resources in the second transmission resource and the frequency domain resources in the first transmission resource, and this overlapping resource is f1 - f2.

[0232] (2) There is overlap between the transmission resources of the first transmission resource in some dimensions of multiple dimensions and the transmission resources of the second transmission resource in some dimensions of multiple dimensions. There are the following ways: <00​​​​​​​​​​​​As shown in (b), the time-domain resources in the second transmission resource and the time-domain resources in the first transmission resource are both t1 - t2, that is, the time-domain resources in the second transmission resource and the time-domain resources in the first transmission resource completely overlap. The frequency-domain resources in the second transmission resource are f1 - f2, and the frequency-domain resources in the first transmission resource are f1 - f3, where f1 < f2 < f3. There is a partial overlap between the frequency-domain resources in the second transmission resource and the frequency-domain resources in the first transmission resource, and this overlapping resource is f1 - f2.

[0236] Method 2: The transmission resources of the first transmission resource and the second transmission resource completely overlap in some dimensions among multiple dimensions, and the transmission resources of the first transmission resource and the second transmission resource do not overlap in other dimensions among multiple dimensions.

[0237] Exemplarily, Figure 8 is a schematic diagram of a first transmission resource and a second transmission resource provided by an embodiment of the present application. As Figure 8 shown in (a), the frequency-domain resources in the second transmission resource and the frequency-domain resources in the first transmission resource are both f1 - f2, that is, the frequency-domain resources in the second transmission resource and the frequency-domain resources in the first transmission resource completely overlap. The time-domain resources in the second transmission resource are t3 - t4, and the time-domain resources in the first transmission resource are t1 - t2, where t1 < t2 < t3 < t4. The time-domain resources in the second transmission resource and the time-domain resources in the first transmission resource do not overlap.

[0238] As Figure 8 shown in (b), the time-domain resources in the second transmission resource and the time-domain resources in the first transmission resource are both t1 - t2, that is, the time-domain resources in the second transmission resource and the time-domain resources in the first transmission resource completely overlap. The frequency-domain resources in the second transmission resource are f3 - f4, and the frequency-domain resources in the first transmission resource are f1 - f2, where f1 < f2 < f3 < f4. The frequency-domain resources in the second transmission resource and the frequency-domain resources in the first transmission resource do not overlap.

[0239] Method 3: The transmission resources of the first transmission resource and the second transmission resource have a partial overlap in some dimensions among multiple dimensions, and the transmission resources of the first transmission resource and the second transmission resource do not overlap in other dimensions among multiple dimensions.

[0240] Exemplarily, Figure 9 is a schematic diagram of a first transmission resource and a second transmission resource provided by an embodiment of the present application. As Figure 9As shown in (a), the frequency-domain resources in the second transmission resource are f1 - f2, and the frequency-domain resources in the first transmission resource are f1 - f3, where f1 < f2 < f3. That is, there is partial overlap between the frequency-domain resources in the second transmission resource and the first transmission resource, and the overlapping resources are f1 - f2; the time-domain resources in the second transmission resource are t3 - t4, and the time-domain resources in the first transmission resource are t1 - t2, where t1 < t2 < t3 < t4. The time-domain resources in the second transmission resource and the first transmission resource do not overlap.

[0241] As Figure 9 shown in (b), the time-domain resources in the second transmission resource are t1 - t2, and the time-domain resources in the first transmission resource are t1 - t3, where t1 < t2 < t3. That is, there is partial overlap between the time-domain resources in the second transmission resource and the first transmission resource, and the overlapping resources are t1 - t2; the frequency-domain resources in the second transmission resource are f3 - f4, and the frequency-domain resources in the first transmission resource are f1 - f2, where t1 < t2 < t3 < t4. The frequency-domain resources in the second transmission resource and the first transmission resource do not overlap.

[0242] In summary, taking the transmission resources in two dimensions, which include time-domain resources and frequency-domain resources, as an example, the time-domain resources and frequency-domain resources can be simply referred to as time-frequency resources. The partial overlap between the first transmission resource and the second transmission resource can include any of the following:

[0243] (1) The first transmission resource is the first time-frequency resource, and the second transmission resource is the second time-frequency resource. 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 are partial overlapping resources between the second time-frequency resource and the first time-frequency resource.

[0244] (2) The first transmission resource is the first time-domain resource, and the second transmission resource is the second time-domain resource. The first time-domain resource and the second time-domain resource partially overlap. For the resources for transmitting the first signal other than the first time-domain resource, such as the first frequency-domain resource and the first spatial-domain resource, and the resources for transmitting the second signal other than the second time-domain resource, such as the second frequency-domain resource and the second spatial-domain resource, they can be the same or different.

[0245] (3) The first transmission resource is the first frequency-domain resource, and the second transmission resource is the second frequency-domain resource. The first frequency-domain resource and the second frequency-domain resource partially overlap. For the resources for transmitting the first signal other than the first frequency-domain resource, such as the first time-domain resource and the first spatial-domain resource, and the resources for transmitting the second signal other than the second frequency-domain resource, such as the second time-domain resource and the second spatial-domain resource, they can be the same or different.

[0246] S503: The second node sends the first signal on the first transmission resource.

[0247] The first transmission resource and the first signal are described in the above-mentioned relevant descriptions and will not be repeated here.

[0248] Optionally, to improve privacy, each node can dynamically / flexibly change the configuration of each signal transmission. For example, the second node can dynamically / flexibly change the configuration of each first signal transmission. The configuration of the first signal transmission can include the content of the first signal, the antenna for transmitting the first signal, the transmission power, etc. The third node can dynamically / flexibly change the configuration of each second signal transmission. In this way, attackers cannot know the transmission pattern / characteristics of each signal, and therefore cannot analyze the received signals, thereby improving the privacy of the target.

[0249] Optionally, each transmission resource (such as the first transmission resource and the second transmission resource) may include multiple transmission units, which correspond to the resources used for multiple signal transmissions. Each transmission unit in the multiple transmission units may correspond to the resources used for each signal transmission in the multiple signal transmissions.

[0250] When the transmission resources (such as the first transmission resource and the second transmission resource) include multiple transmission units, the resources occupied by each transmission unit in the multiple transmission units may be the same or different. The resources occupied by the transmission unit may refer to the resource mapping position, and the resource mapping position may be replaced by the time-frequency resource position mapped to.

[0251] When a transmission resource (such as a first transmission resource or a second transmission resource) includes multiple transmission units, the signals transmitted on the multiple transmission units are variable. The variable nature of the signals transmitted on the multiple transmission units may include one or more of the following: the content of the signals transmitted on the multiple transmission units is variable, the transmission power of the signals transmitted on the multiple transmission units is variable, and the transmitting antenna of the signals transmitted on the multiple transmission units is variable.

[0252] In one example, the first transmission resource includes multiple transmission units, and the first signal transmitted on the multiple transmission units is variable; the first signal transmitted on the multiple transmission units being variable includes one or more of the following: the content of the first signal transmitted on the multiple transmission units is variable, the transmission power of the first signal transmitted on the multiple transmission units is variable, and the transmitting antenna of the first signal transmitted on the multiple transmission units is variable.

[0253] In another example, the second transmission resource includes multiple transmission units, and the second signal transmitted on the multiple transmission units is variable; the variable nature of the second signal transmitted on the multiple transmission units includes one or more of the following: the content of the second signal transmitted on the multiple transmission units is variable, the transmission power of the second signal transmitted on the multiple transmission units is variable, and the transmitting antenna of the second signal transmitted on the multiple transmission units is variable.

[0254] The content of the signals transmitted on multiple transmission units is variable, which can be understood as the content of the signals transmitted on multiple transmission units being different or the same.

[0255] Taking the first transmission resource as an example, the contents of the first signals transmitted on the multiple transmission units included in the first transmission resource can be different. For example, the contents of the first signal transmitted on the current transmission unit are the ZC sequence corresponding to the root value u1, and the contents of the first signal transmitted on the previous transmission unit adjacent to the current transmission unit are the ZC sequence corresponding to the root value u0. The contents of the first signals transmitted on the multiple transmission units included in the first transmission resource can be the same. For example, the contents of the first signal transmitted on the current transmission unit and the contents of the first signal transmitted on the previous transmission unit adjacent to the current transmission unit are both the ZC sequence corresponding to the root value u0.

[0256] Optionally, in some possible embodiments, the root value u of the ZC sequence can be generated based on key information or a random seed (or random number). The key information can be the key information between the node sending the first signal (such as the second node in Embodiment 1) and the node receiving the first signal (such as the first node in Embodiment 1). The random seed can be generated by the second node based on the key information. In this embodiment, the first node and the second node can negotiate multiple sets of key information or random seeds in advance. Based on the key information or random seed, the second node can determine that the first signal used for sensing needs to be replaced. The generation method of the second signal can be the same as or different from the generation method of the first signal; there is no limitation on this.

[0257] The transmission power of the signals transmitted on multiple transmission units is variable; that is, the transmission power of the signals transmitted on multiple transmission units can be the same or different.

[0258] Taking the first transmission resource as an example, the transmission power of the first signal transmitted on the multiple transmission units included in the first transmission resource can be different. For example, the transmission power of the first signal transmitted on the current transmission unit is P1, and the transmission power of the first signal transmitted on the previous transmission unit adjacent to the current transmission unit is P2. The transmission power of the first signal transmitted on the multiple transmission units included in the first transmission resource can be the same. For example, the transmission power of the first signal transmitted on the current transmission unit and the transmission power of the first signal transmitted on the previous transmission unit adjacent to the current transmission unit are both P1.

[0259] Among them, the transmitting antennas of the signals transmitted on multiple transmission units are variable, which can be understood as the transmitting antennas of the signals transmitted on multiple transmission units being the same or different.

[0260] Taking the first transmission resource as an example, the transmitting antennas of the first signals transmitted on the multiple transmission units included in the first transmission resource can be different. For example, the transmitting antenna of the first signal transmitted on the current transmission unit is antenna 1, and the transmitting antenna of the first signal transmitted on the previous transmission unit adjacent to the current transmission unit is antenna 2. The transmitting antennas of the first signals transmitted on the multiple transmission units included in the first transmission resource can be the same. For example, the transmitting antenna of the first signal transmitted on the current transmission unit and the transmitting antenna of the first signal transmitted on the previous transmission unit adjacent to the current transmission unit are both antenna 1.

[0261] The first signal sent by the second node on the first transmission resource is used by the first node to obtain channel information. Therefore, the first node needs to receive the first signal from the second node. However, considering that the first transmission resource for sending the first signal and the second transmission resource for sending the second signal partially overlap, if the first node receives the signal on the resource where the first and second transmission resources overlap, what it receives is the superimposed signal of the first and second signals after transmission through the channel. The first node cannot obtain channel information based on this superimposed signal. Therefore, the first node needs to receive the first signal on the resource in the first transmission resource where the first signal is sent but the second signal is not sent, so as to obtain channel information based on the first signal.

[0262] S504: The third node sends a second signal on the second transmission resource.

[0263] The second transmission resource and the second signal are described in the above-mentioned relevant descriptions and will not be repeated here.

[0264] It should be understood that in this application Figure 5 The process shown in the example can be a process of sending a first signal and a second signal at a time.

[0265] It should be noted that steps S501-S504 described above are merely illustrative descriptions of the communication method flow. The execution order of steps S501 and S502 is not limited. For example, step S501 may be executed before step S502; or, step S501 may be executed after step S502; or, step S501 may be executed simultaneously with step S502. Similarly, the execution order of steps S503 and S504 is not limited. For example, step S503 may be executed before step S504; or, step S503 may be executed after step S504; or, step S503 may be executed simultaneously with step S504.

[0266] Further optional, Figure 5 The method shown also includes:

[0267] S505: The first node receives the first signal transmitted through the channel.

[0268] Optionally, the first node may receive the first signal transmitted via the channel on resources where the first and second transmission resources do not completely overlap, wherein the partially overlapping resources may be resources that do not overlap at all among the two transmission resources. When each of the two transmission resources includes transmission resources in multiple dimensions, the partially overlapping resources of the first and second transmission resources may be resources that do not overlap in any of the multiple dimensions.

[0269] For example, Figure 6 A schematic diagram of a first transmission resource and a second transmission resource provided in an embodiment of this application is shown below. Figure 6 As shown in (a), the second transmission resource is a part of the first transmission resource. The resources in which the first transmission resource and the second transmission resource do not completely overlap can be any of the following: (1) resources in the first transmission resource and the second transmission resource that do not overlap at all, namely the time domain resources of t1-t2 and the frequency domain resources of f1-f2; (2) resources in the time domain of the first transmission resource and the time domain resources of the second transmission resource that do not overlap, namely the time domain resources of t1-t2; (3) resources in the frequency domain of the first transmission resource and the frequency domain resources of the second transmission resource that do not overlap, namely the frequency domain resources of f2-f3.

[0270] S506: The first node obtains the first channel information based on the first signal.

[0271] As one possible implementation, the first node can perform channel estimation based on the first signal and the signal transmitted through the channel to obtain the first channel information. The first channel information is the channel information of the channel through which the first signal passes, or the channel information between the first node and the second node.

[0272] The above Figure 5 In a corresponding embodiment, the communication method provided in this application is described as follows: a first node instructs a second node to send a first transmission resource for transmitting a first signal, and a third node to send a second transmission resource for transmitting a second signal; the second node sends the first signal on the first transmission resource, and the third node sends the second signal on the second transmission resource; the first node receives the first signal and obtains the first channel information based on the first signal. Alternatively, the second node may instruct the first node to send a first transmission resource for transmitting a first signal, and the first node may instruct the third node to send a second transmission resource for transmitting a second signal; the first node sends the first signal on the first transmission resource, and the third node sends the second signal on the second transmission resource; the second node receives the first signal and obtains the first channel information based on the first signal. Specifically, this implementation is described below. Figure 10 As described in the corresponding embodiment.

[0273] Example 2:

[0274] Figure 10 A flowchart illustrating another communication method provided for implementation of this application, such as... Figure 10 As shown, the method may include the following steps:

[0275] S1001: The second node sends a third message to the first node, and the first node receives the third message from the second node.

[0276] The third information can be used to indicate the first transmission resource for sending the first signal. Although the third information has a similar indicative function to the first information, and is also used to indicate the first transmission resource for sending the first signal, the difference from Embodiment 1 is that the first information is used to indicate the first transmission resource for the second node to send the first signal, while the third information is used to indicate the first transmission resource for the first node to send the first signal; the objects of indication are different.

[0277] The indication method of the third information and the signaling format carrying the third information can be referred to the indication method of the first information and the signaling format carrying the first information in the above embodiment 1, and will not be repeated here.

[0278] Optionally, the second node can indicate the first signal to the first node. Specifically, the method of indicating the first signal can refer to the method of indicating the first signal in Embodiment 1 above. For example, it can be indicated by third information or by other information, which will not be elaborated further.

[0279] S1002: The second node sends a first request message to the first node, and the first node receives the first request message from the second node.

[0280] The first request information is used to trigger the first node to send the fourth information.

[0281] The fourth piece of information can be used to instruct the third node to send the second signal using the second transmission resource. Although the fourth piece of information and the second piece of information have the same instructive function and instructive object, both being used to instruct the third node to send the second signal using the second transmission resource, the difference from Embodiment 1 is that the second transmission resource indicated by the fourth piece of information can be the second transmission resource allocated by the second node or the second transmission resource allocated by the first node, while in Embodiment 1, the second transmission resource indicated by the second piece of information is the second transmission resource allocated by the first node. The allocation objects corresponding to the second transmission resources indicated in the two pieces of information can be different.

[0282] In one example, the first request information may include fourth information. For instance, if the second transmission resource for the third node to send the second signal and / or the second signal is configured by the sensing initiator, i.e., the second node, the first request information may include fourth information. The fourth information may be sent to the third node via the first node, so that the third node can send the second signal on the second transmission resource configured by the sensing initiator node. The second signal may be the second signal configured by the sensing node.

[0283] In another example, the first request information may not include the fourth information. For instance, if the second transmission resource for sending the second signal by the third node and / or the second signal is configured by the first node, the first request information may not include the fourth information.

[0284] The indication method of the fourth information and the signaling format carrying the fourth information can be referred to the indication method of the second information and the signaling format carrying the second information in the above embodiment one, and will not be repeated.

[0285] Optionally, the first node can indicate the second signal to the third node. Specifically, the method of indicating the second signal can refer to the method of indicating the second signal in Embodiment 1 above. For example, it can be indicated by the fourth information or by other information, which will not be elaborated further.

[0286] S1002 is an optional operation. When the first node sends the fourth information to the third node in a triggered manner, S1002 is executed so that the third node can receive the fourth information from the first node. When the first node actively sends the fourth information to the third node, S1002 is not executed. For example, the first node sends the fourth information periodically, and the third node can periodically receive the fourth information from the first node.

[0287] S1003: The first node sends the fourth message to the third node, and the third node receives the fourth message from the first node.

[0288] The fourth piece of information can be found in the relevant description in S1002, and will not be repeated here.

[0289] S1004: The first node sends a first signal to the second node on the first transmission resource.

[0290] The third information and the first signal can be found in the relevant description in S1001, and will not be repeated here.

[0291] S1005: The third node sends a second signal on the second transmission resource.

[0292] The fourth information and the second signal can be found in the relevant description in S1002, and will not be repeated here.

[0293] The second transmission resource and the first transmission resource partially overlap; a related description can be found in [link to relevant documentation]. Figure 5 The description of the partial overlap between the second and first transmission resources is omitted here.

[0294] S1006: The second node receives the first signal on a resource where the first and second transmission resources do not completely overlap.

[0295] The second node receives the first signal on resources where the first and second transmission resources do not completely overlap. This can be found in the description of the first node receiving the first signal transmitted through the channel in S505, which will not be repeated here.

[0296] It should be noted that steps S1001-S1005 described above are merely illustrative descriptions of the communication method flow. The execution order of steps S1001 and S1003 is not limited. For example, step S1001 may be executed before step S1003; or, step S1001 may be executed after step S1003; or, step S1001 may be executed simultaneously with step S1003. Similarly, the execution order of steps S1004 and S1005 is not limited. For example, step S1004 may be executed before step S1005; or, step S1004 may be executed after step S1005; or, step S1004 may be executed simultaneously with step S1005.

[0297] Further optional, Figure 10 The method shown also includes:

[0298] S1006: The second node obtains the first channel information based on the first signal.

[0299] As one possible implementation, the second node can perform channel estimation based on the first signal and the first signal transmitted through the channel to obtain the first channel information.

[0300] The above Figure 5In a corresponding embodiment, the communication method provided in this application is described as follows: a first node instructs a second node to send a first signal using a first transmission resource, and a third node to send a second signal using a second transmission resource; the second node sends the first signal on the first transmission resource, and the third node sends the second signal on the second transmission resource; the first node receives the first signal and obtains first channel information based on the first signal. Alternatively, the first node instructs a second node to send a second signal using a second transmission resource, and a third node to receive the first signal using a third transmission resource; the first node sends the first signal on the first transmission resource, the second node sends the second signal on the second transmission resource, and the third node receives the first signal on the third transmission resource and obtains first channel information based on the first signal. Specifically, this implementation refers to the following... Figure 11 As described in the corresponding embodiment.

[0301] Example 3:

[0302] Figure 11 A flowchart illustrating another communication method provided for implementation of this application, such as... Figure 11 As shown, the method may include the following steps:

[0303] S1101: The first node sends the fifth message to the second node, and the second node receives the fifth message from the first node.

[0304] The fifth piece of information can be used to indicate the second transmission resource for sending the second signal. Although the fifth piece of information has a similar indicative function to the second piece of information, and is also used to indicate the second transmission resource for sending the second signal, the difference from Embodiment 1 is that the fifth piece of information is used to indicate the second transmission resource for the second node to send the second signal, while the second piece of information is used to indicate the second transmission resource for the third node to send the second signal; the objects of indication are different.

[0305] The indication method of the fifth information and the signaling format carrying the fifth information can be referred to the indication method of the second information and the signaling format carrying the second information in the above embodiment one, and will not be repeated.

[0306] Optionally, the first node can indicate a second signal to the second node. Specifically, the method of indicating the second signal can refer to the method of indicating the second signal in Embodiment 1 above. For example, it can be indicated by the fifth information, or it can be indicated by other information, which will not be elaborated further.

[0307] S1102: The first node sends the sixth message to the third node, and the third node receives the sixth message from the first node.

[0308] The sixth piece of information can be used to instruct the third node to receive the third transmission resource of the first signal. The first signal can be found in the relevant description above, and will not be repeated here.

[0309] Figure 11 In the illustrated embodiment, 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 for itself to send the first signal. 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 through which the "clean" first signal passes, the first node can allocate a third transmission resource for the third node to receive the first signal.

[0310] In this application, the third transmission resource for receiving the first signal can be understood as a portion of the first transmission resource for transmitting the first signal, or a portion of the first transmission resource used to carry the first signal, or a portion of the first transmission resource used to send / transmit the first signal, etc., and is not limited thereto. Optionally, the third transmission resource may include time-domain resources, frequency-domain resources, or spatial-domain resources, etc.

[0311] Optionally, the third transmission resource can be a resource that does not completely overlap with the first and second transmission resources, and the third node can receive the "clean" first signal on the non-overlapping resources among the non-overlapping resources.

[0312] 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 as an example, the sixth information can include the frequency point and the radio frame index to directly indicate the third transmission resource; or, the sixth information can include the frequency band index, the start time of the time slot, etc., to indirectly indicate the third transmission resource.

[0313] Optionally, in order to perform channel estimation and obtain the channel information corresponding to the first signal, the third node also needs to acquire the first signal, so that after the third node receives the signal after the first signal is transmitted through the channel, it can perform channel estimation based on the received signal and the first signal to obtain the channel information.

[0314] Optionally, the first node can indicate the first signal to the third node. Specifically, the method of indicating the first signal can refer to the method of indicating the first signal in Embodiment 1 above. For example, it can be indicated by the sixth information or by other information, which will not be elaborated further.

[0315] For example, Figure 12 A schematic diagram of a first transmission resource and a second transmission resource provided in an embodiment of this application is shown below. Figure 12As shown, the first transmission resource used to transmit the first signal is the first frequency, from time t1 to time t8. The second transmission resource used to transmit the second signal is the first frequency, from time t2 to time t4, and from time t6 to time t8. The frequency domain resources in the first and second transmission resources are both the first frequency. At this time, the third transmission resource can be a resource that does not completely overlap with the first and second transmission resources. The third transmission resource is the first frequency, time t1, and time t5.

[0316] S1103: The first node sends a first signal on the first transmission resource.

[0317] The first and second transmission resources partially overlap, as detailed above, and will not be repeated here.

[0318] S1104: The second node sends a second signal on the second transmission resource.

[0319] S1105: The third node receives the first signal transmitted via the channel on the third transmission resource.

[0320] The third transmission resource is described in S1102 and will not be repeated here.

[0321] It should be noted that steps S1101-S1105 described above are merely illustrative descriptions of the communication method flow. The execution order of steps S1101 and S1102 is not limited. For example, step S1101 may be executed before step S1102; or, step S1101 may be executed after step S1102; or, step S1101 may be executed simultaneously with step S1102. Similarly, the execution order of steps S1103 and S1104 is not limited. For example, step S1103 may be executed before step S1104; or, step S1103 may be executed after step S1104; or, step S1103 may be executed simultaneously with step S1104.

[0322] Further optional, Figure 11 The method shown also includes:

[0323] S1106: The third node sends the seventh message to the first node, and the first node receives the seventh message from the third node.

[0324] 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 based on the first signal.

[0325] As one possible implementation, the third node can perform channel estimation based on the first signal and the signal after the first signal received on the third transmission resource has been transmitted through the channel to obtain the first channel information. The first channel information is the channel information of the channel through which the first signal passes, or the channel information between the first node and the third node.

[0326] S1106 is an optional operation. In Embodiment 3, the first node can be a sensing initiating node or a sensing responding node. When the first node is a sensing initiating node, the third node needs to send the channel information obtained from the first signal, i.e., the first channel information, to the first node and execute S1106 so that the first node performing the sensing task can obtain the first channel information, thereby realizing target sensing and obtaining relevant information about the target. When the first node is a sensing responding node, the first node is not the node performing the sensing task, so the third node can choose not to send the first channel information to the first node and not execute S1106.

[0327] S1107: The third node sends the eighth message to the first node, and the first node receives the eighth message from the third node.

[0328] The eighth piece of information is used to indicate the transmission resources 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 the channel information of the channel traversed by the first signal, i.e., the first channel information. Therefore, the eighth piece of information indicating the transmission resources corresponding to the channel information between the first node and the third node can be alternatively described as the eighth piece of information indicating the transmission resources corresponding to the first channel information.

[0329] S1107 is an optional operation. The first node sends sixth information to the third node to instruct the third node to receive the third transmission resource of the first signal. In one possible implementation, the third node receives the first signal on all resources of the third transmission resource. Therefore, the transmission resource on which the third node receives the first signal is known to the first node, and the transmission resource corresponding to the first channel information obtained by the third node based on the received first signal is also known to the first node. Therefore, the third node may not send the transmission resource corresponding to the first channel information to the first node, i.e., S1107 is not executed. In another possible implementation, the third node receives the first signal on a portion of the resources of the third transmission resource. Therefore, the transmission resource on which the third node receives the first signal is unknown to the first node, and the transmission resource corresponding to the first channel information obtained by the third node based on the received first signal is also unknown to the first node. Therefore, the third node needs to send the transmission resource corresponding to the first channel information to the first node, i.e., S1107 is executed.

[0330] The above embodiments one to three are combined Figure 3The communication system shown illustrates the communication method provided in the embodiments of this application. The following description, in conjunction with... Figure 4 The communication system shown illustrates the communication method provided in the embodiments of this application. Figure 4 The communication system shown is compared to Figure 3 The communication system shown differs in that, Figure 4 The communication system shown includes two nodes, such as a first node and a second node. One node is used to transmit a first signal, and the other node is used to transmit a second signal and receive the first signal to obtain channel information between the two nodes. In the following embodiments four and five, the first node is the node that transmits the first signal, and the second node is the node that transmits the second signal and receives the first signal. Alternatively, the first node can also be the node that transmits the second signal and receives the first signal, and the second node can also be the node that transmits the first signal. This is a consistent explanation and will not be elaborated further below.

[0331] Example 4:

[0332] The following is based on Figure 4 The communication system shown includes a first node and a second node, which will be used to illustrate the communication method provided in this application.

[0333] Figure 13 A flowchart illustrating another communication method provided for implementation of this application, such as... Figure 13 As shown, the method may include the following steps:

[0334] S1301: The first node sends the ninth message to the second node, and the second node receives the ninth message from the first node.

[0335] The ninth piece of information is used to indicate the first transmission resource for sending the first signal. Although the ninth piece of information has a similar indicative function to the first piece of information, and is also used to indicate the first transmission resource for sending the first signal, the difference from Embodiment 1 is that the first piece of information is used to indicate the first transmission resource for the second node to send the first signal, while the ninth piece of information is used to indicate the first transmission resource for the first node to send the first signal; the objects of indication are different.

[0336] In addition, in Embodiment 1, the first node is the node that receives the first signal, the second node is the node that sends the first signal, and the first information is sent from the node that receives the first signal to the node that sends the first signal; while in Embodiment 4, the first node is the node that sends the first signal, the second node is the node that receives the first signal, and the ninth information is sent from the node that sends the first signal to the node that receives the first signal, indicating that the flow of the information is different.

[0337] The indication method of the ninth information and the signaling format carrying the ninth information can be referred to the indication method of the first information and the signaling format carrying the first information in the above embodiment one, and will not be repeated.

[0338] Optionally, the first node can indicate the first signal to the second node. Specifically, the method of indicating the first signal can refer to the method of indicating the first signal in Embodiment 1 above. For example, it can be indicated by the ninth information, or it can be indicated by other information, which will not be elaborated further.

[0339] S1302: The second node sends a second signal on the second transmission resource.

[0340] The second signal may not be used by the second node to obtain channel information. The second signal can be found in the relevant description above and will not be repeated here.

[0341] The second transmission resource and the first transmission resource partially overlap, as described above, and will not be repeated here.

[0342] The second transmission resource can be determined by the second node itself, or it can be determined by other nodes such as the first node.

[0343] In one example, the second transmission resource is determined by the second node based on the first transmission resource. The second node can send tenth information to the first node. The tenth information is used to instruct the second node to send the second transmission resource for the second signal. In this way, the first node can choose not to send any information to the second node when the second node sends the second signal.

[0344] For example, the first node is a management node, and the second node is a terminal node. The terminal node is a node that performs a sensing task. The terminal node requests the management node to send a first signal to obtain channel information. The management node allocates a first transmission resource for itself to send the first signal and indicates the first transmission resource to the terminal node through the ninth information. The terminal node receives the ninth information, selects a portion of the first transmission resource indicated by the ninth information as a second transmission resource to transmit the second signal, and indicates the second transmission resource for sending the second signal to the management node through the tenth information. This allows the management node to not send other downlink information to the terminal node when the terminal node sends the second signal, or facilitates the management node to schedule other nodes in the domain.

[0345] In another example, the second transmission resource is determined by the first node. The second node can receive tenth information from the first node, which is used to instruct the second node to send the second signal on the second transmission resource. Thus, the second node can send the second signal on the second transmission resource allocated to it by the first node.

[0346] For example, the first node is a management node, and the second node is a terminal node. The terminal node is the node that performs the sensing task. The terminal node requests the management node to send a first signal to obtain channel information. The management node allocates a first transmission resource for itself to send the first signal and instructs the terminal node on the first transmission resource through the ninth information. In addition, in order to avoid the exposure of target privacy, the terminal node also requests the management node to allocate a second transmission resource for it. The management node instructs the terminal node on the second transmission resource through the tenth information. The terminal node receives the tenth information and sends a second signal on the second transmission resource indicated by the tenth information.

[0347] The tenth piece of information can be used to indicate the second transmission resource for sending the second signal. Although the tenth piece of information and the second piece of information have similar indicative functions, both being used to indicate the second transmission resource for sending the second signal, the difference from Embodiment 1 is that the tenth piece of information indicates the second transmission resource for the second node to send the second signal, while in Embodiment 1 the second information indicates the second transmission resource for the third node to send the second signal; the objects of indication are different.

[0348] In addition, in Embodiment 1, the first node is the node that receives the first signal, and the third node is the node that sends the second signal. The second information is sent from the node that receives the first signal to the node that sends the second signal. In Embodiment 4, the first node is the node that sends the first signal, and the second node is the node that sends the second signal and receives the first signal. The flow directions of the two indication information can be the same or different.

[0349] The indication method of the tenth information and the signaling format carrying the tenth information can be referred to the indication method of the second information and the signaling format carrying the second information in the above embodiment one, and will not be repeated.

[0350] S1303: The first node sends the first signal on the first transmission resource.

[0351] The first transmission resource and the first signal are described above and will not be repeated here.

[0352] Optional, Figure 13 The method shown also includes:

[0353] S1304: The second node receives the signal transmitted by the first signal through the channel.

[0354] The second node can receive the first signal transmitted via the channel on resources where the first and second transmission resources do not completely overlap. The resources where the first and second transmission resources do not completely overlap are described above and will not be repeated here.

[0355] An example, Figure 14A schematic diagram of a first transmission resource and a second transmission resource provided in an embodiment of this application is shown below. Figure 14 As shown, 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 both the first and second transmission resources is the first frequency. At this time, the resources in the first and second transmission resources that do not completely overlap are the first frequency, time t1, and time t5. The second node receives the first signal transmitted through the channel at the first frequency, time t1, and time t5.

[0356] Another example is that the first transmission resource and the second transmission resource are as follows: Figure 12 As shown, the first transmission resource used to transmit the first signal is the first frequency, from time t1 to time t8, and the second transmission resource used to transmit the second signal is the first frequency, from time t2 to time t4, and from time t6 to time t8. The frequency domain resources in the first and second transmission resources are both the first frequency. At this time, the resources in the first and second transmission resources that do not completely overlap are the first frequency, time t1, and time t5.

[0357] S1305: The second node obtains the first channel information based on the first signal.

[0358] As one possible implementation, the second node can perform channel estimation based on the first signal and the signal transmitted through the channel to obtain the first channel information.

[0359] S1306: The second node sends the eleventh message to the first node, and the first node receives the eleventh message from the second node.

[0360] Among them, the eleventh information is used to indicate the channel information between the first node and the second node. The channel information between the first node and the second node is also the channel information of the channel through which the first signal passes, i.e., the first channel information. The first channel information can be obtained by the second node based on the first signal. See S1305 for the method of obtaining it.

[0361] S1306 is an optional operation. In Embodiment 4, the first node can be a sensing initiating node or a sensing responding node. When the first node is a sensing initiating node, the second node needs to send the channel information obtained based on the first signal, i.e., the first channel information, to the first node and execute S1306 so that the first node performing the sensing task can obtain the first channel information, thereby realizing target sensing and obtaining relevant information about the target. When the first node is a sensing responding node, the first node is not the node performing the sensing task, so the second node can choose not to send the first channel information to the first node and not execute S1306.

[0362] S1307: The second node sends the twelfth message to the first node, and the first node receives the twelfth message from the second node.

[0363] The twelfth piece of information is used to indicate the transmission resources 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. Therefore, the twelfth piece of information indicating the transmission resources corresponding to the channel information between the first node and the third node can be alternatively described as the twelfth piece of information indicating the transmission resources corresponding to the first channel information.

[0364] S1307 is an optional operation. Both the first and second transmission resources can be determined by the first node, or the first transmission resource can be determined by the first node, and the second transmission resource by the second node. When both the first and second transmission resources are determined by the first node, the resources for the second node to receive the first signal are known to the first node, and the transmission resources corresponding to the first channel information obtained by the second node based on the received first signal are also known to the first node. Therefore, the second node may not send the transmission resources corresponding to the first channel information to the first node, i.e., S1307 is not executed. When both the first and second transmission resources are determined by the first node, the resources where the first and second transmission resources do not completely overlap are unknown to the first node. That is, the transmission resources for the second node to receive the first signal are unknown to the first node, and the transmission resources corresponding to the first channel information obtained by the second node based on the received first signal are also unknown to the first node. Therefore, the second node needs to send the transmission resources corresponding to the first channel information to the first node, i.e., S1307 is executed.

[0365] The above Figure 13 In a corresponding embodiment, the communication method provided in this application is described using the example of a first node indicating a first transmission resource for sending a first signal to a second node. Alternatively, the second node can indicate a first transmission resource for sending a first signal to the first node. Specifically, this implementation refers to the following... Figure 15 As described in the corresponding embodiment.

[0366] Example 5:

[0367] Figure 15 A flowchart illustrating another communication method provided for implementation of this application, such as... Figure 15 As shown, the method may include the following steps:

[0368] S1501: The second node sends the thirteenth message to the first node, and the first node receives the thirteenth message from the second node.

[0369] The thirteenth piece of information is used to indicate the first transmission resource for sending the first signal. Although the thirteenth piece of information has a similar indicative function to the first information, and is also used to indicate the first transmission resource for sending the first signal, the difference from Embodiment 1 is that the first information is used to indicate the first transmission resource for the second node to send the first signal, while the thirteenth piece of information is used to indicate the first transmission resource for the first node to send the first signal; the objects of indication are different.

[0370] The indication method of the thirteenth information and the signaling format carrying the thirteenth information can be referred to the indication method of the first information and the signaling format carrying the first information in the above embodiment one, and will not be repeated.

[0371] Optionally, the second node can indicate the first signal to the first node. Specifically, the method of indicating the first signal can refer to the method of indicating the first signal in the first embodiment above. For example, it can be indicated by the ninth information, or it can be indicated by other information, which will not be elaborated further.

[0372] S1502: The second node sends a second signal on the second transmission resource.

[0373] The second transmission resource and the first transmission resource partially overlap, as described above, and will not be repeated here.

[0374] The second transmission resource can be obtained through the fourteenth information, which is used to instruct the second node to send the second signal using the second transmission resource.

[0375] The description of S1502 can be referred to the description of S1302. The difference between S1502 and S1302 is that the tenth information in S1302 is used to indicate the second transmission resource for the second node to send the second signal, while the fourteenth information in S1502 is used to indicate the second transmission resource for the second node to send the second signal. The names of the indication information are different.

[0376] The indication method of the fourteenth information and the signaling format carrying the fourteenth information can be referred to the indication method of the second information and the signaling format carrying the second information in the above embodiment one, and will not be repeated.

[0377] In one example, the first node is a sensing initiating node, and the second node is a sensing responding node. The sensing initiating node is the node that performs the sensing task. The sensing initiating node requests the sensing responding node to send a first signal to obtain channel information. The sensing responding node determines a first transmission resource for sending the first signal based on its own transmission resources and indicates the first transmission resource to the sensing initiating node through a thirteenth message. The sensing initiating node receives the thirteenth message and sends the first signal on the first transmission resource indicated by the thirteenth message. To avoid exposing the target's privacy, the sensing initiating node can also allocate a second transmission resource for the sensing responding node and indicate the second transmission resource to the sensing responding node through a fourteenth message. The sensing responding node receives the fourteenth message and sends a second signal on the second transmission resource indicated by the fourteenth message.

[0378] In another example, the first node is a management node, and the second node is a terminal node. The terminal node is the node that performs the sensing task. To avoid exposing the target's privacy, the terminal node determines the first transmission resource for sending the first signal and the second transmission resource for sending the second signal based on its own transmission resources. Furthermore, the terminal node requests the management node to send the first signal on the first transmission resource through the thirteenth information, and the terminal node instructs the management node on the second transmission resource through the fourteenth information. This allows the management node to not send other downlink information to the terminal node when the terminal node sends the second signal, or to facilitate the management node in scheduling other nodes in the domain.

[0379] S1503: The first node sends a first signal on the first transmission resource.

[0380] The first node sends a first signal on the first transmission resource indicated by the thirteenth information. The first transmission resource and the first signal are described in the above-mentioned relevant descriptions and will not be repeated here.

[0381] Optional, Figure 15 The method shown also includes:

[0382] S1504: The second node receives the signal transmitted by the first signal through the channel.

[0383] S1505: The second node obtains the first channel information based on the first signal.

[0384] For S1504-S1505, please refer to S1304-S1305, which will not be repeated here.

[0385] S1506: The second node sends the fifteenth message to the first node, and the first node receives the fifteenth message from the second node.

[0386] The description of S1506 can be referred to the description of S1306. The difference between S1506 and S1306 is that the eleventh information in S1306 is used to indicate the channel information between the first node and the second node, while the fifteenth information in S1506 is used to indicate the channel information between the first node and the second node. The names of the indicating information are different.

[0387] S1507: The second node sends the sixteenth message to the first node, and the first node receives the sixteenth message from the second node.

[0388] The description of S1507 can be referred to the description of S1307. The difference between S1507 and S1307 is that the twelfth information in S1307 is used to indicate the transmission resources corresponding to the channel information between the first node and the second node, while the sixteenth information in S1507 is used to indicate the transmission resources corresponding to the channel information between the first node and the second node. The names of the indication information are different.

[0389] One possible implementation, Figure 13 or Figure 15 In the communication method shown, when the second node is the sensing initiating node, the second node sends a second signal on the 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. Therefore, the second node may not indicate the second transmission resource to the first node.

[0390] Based on the above description of the communication method provided in the embodiments of this application, in one possible implementation, the solution provided in the embodiments of this application is applicable to at least one of wireless communication methods such as Bluetooth (BT) communication, Sparklink (or Nearlink) communication, and Wi-Fi communication. In the embodiments of this application, BT and Bluetooth Low Energy (BLE) can refer to each other. Sparklink can include at least one of the following: Sparklink Low Energy (SLE), Sparklink Basic (SLB), or Sparklink Position (SLP). In the embodiments of this application, Sparklink and Sparklink Low Energy (SLE), Sparklink Basic (SLB), or Sparklink Position (SLP) can refer to each other.

[0391] The following describes some embodiments of the solution provided in this application.

[0392] Example 1:

[0393] Bluetooth (BT), Wi-Fi, and SparkLink (or NearLink) can all use the 2.4GHz or 5GHz frequency bands and have similarities. Some modules can be reused, thus saving chip cost, area, and power consumption. Chip resources can be highly reused, allowing for rapid iteration of multiple chips.

[0394] Wi-Fi and SLB can share a single RF architecture and path. For example... Figure 16 The diagram shown is a schematic representation of a chip architecture provided in an embodiment of this application. Figure 16 It is known that through design, resources such as central processing unit (CPU), radio frequency (RF) unit, analog baseband (ABB) unit, or modem can be shared, and some modules of media access control (MAC) layer can be reused, thereby saving chip area and reducing chip cost and power consumption.

[0395] like Figure 17 The diagram shown is a schematic representation of another chip architecture provided in an embodiment of this application. Figure 17 It is known that the MAC units of BT, SLB and Wireless Fidelity (Wi-Fi) are implemented independently, while the RF units and Modem units of each mode are all shared.

[0396] like Figure 18 The diagram shown is a schematic representation of another chip architecture provided in an embodiment of this application. Figure 18 It can be seen that the MAC units of BT, SLB and Wi-Fi are implemented independently, and the Modems of BT, SLB and Wi-Fi are also implemented independently, while the RF units of each mode are all shared.

[0397] like Figure 19 The diagram shown is a schematic representation of another chip architecture provided in an embodiment of this application. Figure 19 It can be seen that the MAC units of BT, SLB and Wi-Fi are implemented independently. Some modes, such as Wi-Fi and SLB, share the same modem, while other modes, such as BT, have their modems implemented independently. All modes share the same RF.

[0398] Example 2:

[0399] The StarSpark chip can be manufactured using 14 / 28 / 40nm processes and packaged in chip-size packages (CSP), ball grid arrays (BGA), and quad flat no-lead (QFN) formats, employing either internal or external flash memory. Depending on the application scenario, at least one of the following subsystems can be integrated onto a single chip: power management unit (PMU), clock management unit (CMU), active optical network (AON), wireless local area network (WLAN), or BT, StarSpark, global navigation satellite system (GNSS), application (APP), and audio. This minimizes area, maximizes functionality, and improves performance and reliability.

[0400] This application provides a chip design approach where the stroboscopic subsystem is integrated with other subsystems onto a single chip. Depending on the product, the chip's subsystems can be tailored and combined, and the different subsystems are connected via a bus.

[0401] like Figure 20 The diagram shown is a schematic representation of a chip module framework provided in an embodiment of this application. Figure 20 It is understood that for products requiring BT or GNSS functional modules, and simultaneously needing to connect to Wi-Fi and satellite flash devices, Wi-Fi and SLB can be separated into different systems, and then combined with at least one of the following on a single chip: BT System, SLE System, GNSS System, Always On System, PMU, CMU, Flash memory, APP System, and Audio System. Different subsystems are connected via a bus.

[0402] like Figure 21 As shown, this is a schematic diagram of another chip module framework provided in an embodiment of this application. Figure 21It is known that, in some embodiments, in order to save area and cost, Wi-Fi and SLB can be combined into one subsystem, and then combined with at least one of the following on a chip: BT System, SLE System, GNSS System, Always On System, PMU, CMU, Flash memory, APP System, AudioSystem, etc., with different subsystems connected to each other via a bus.

[0403] Example 3:

[0404] The Wi-Fi / SLB 2.4GHz band operates in the 2412–2472MHz range, while the BT / BLE / SLE band operates in the 2402–2480MHz range, which may cause mutual interference. Within the same core, SLB and Wi-Fi can allocate service time slots through software scheduling; however, there is a lack of unified scheduling for SLB and Wi-Fi / BT / BLE / SLE on different cores.

[0405] This application provides a communication coexistence scheme for SLB / Wi-Fi / SLE / BT / BLE. Based on whether SLB and Wi-Fi / SLE / BT / BLE share an antenna, the coexistence scenario is divided into coexistence with different antennas (using different antennas) and coexistence with the same antenna (using the same antenna), and different coexistence strategies are given.

[0406] For the coexistence of different antennas, if SLB and Wi-Fi coexist, it can be ensured that the transmit and receive frequencies of SLB and Wi-Fi are different (i.e., frequency division multiplexing). The software can handle this from the aspects of code division multiplexing, service cycle, and interval (i.e., frequency division multiplexing). If SLB and SLE / BT / BLE coexist, and the isolation requirement cannot be met, it is necessary to avoid the channels where SLE / BT / BLE is located (i.e., channel avoidance) to reduce the impact of SLE / BT / BLE. At the same time, an aggregation scheduling mechanism can be added to aggregate and centrally send SLE / BT / BLE data packets (i.e., aggregation scheduling) to reduce the probability of interference from SLE / BT / BLE.

[0407] For shared antenna coexistence, software static strategies or hardware arbitration time-division strategies (such as packet traffic arbitration, PTA) can be used. Frequency division multiplexing, code division multiplexing, and time division multiplexing can also be employed. The advantages of software static strategies are: low hardware requirements, minimal software modifications, and no dynamic radio frequency (RF) switching (such as RF recovery). The advantages of PTA strategies are: faster service state switching and finer granularity of switching time. Packet traffic arbitration (PTA) can also be called data packet traffic arbitration.

[0408] Taking the coexistence of SLB and SLE / BT / BLE as an example, such as Figure 22 The diagram shown is a framework illustration of a software static strategy provided in an embodiment of this application. Figure 22 As can be seen, the software static strategy can include: after SLB starts, the software configures the host to notify SLE / BT / BLE to exit the current RF path. In this scenario, SLE / BT / BLE can check the SLB startup flag, and the software can be configured to switch from the current RF path to another RF path. The chip needs to support software-configured switching.

[0409] Taking the coexistence of SLB and Wi-Fi as an example, such as Figure 23 The diagram shown illustrates a framework for another software static strategy provided in an embodiment of this application. Figure 23 As can be seen, the software static strategy can include: after SLB starts, the software configures the host to notify Wi-Fi to exit the current RF path. In this scenario, Wi-Fi can check the SLB startup flag, and the software can be configured to switch from the current RF path to another RF path. The chip needs to support software-configured switching.

[0410] For example, such as Figure 24 The diagram shown illustrates a hardware arbitration time-division (PTA) strategy framework provided in an embodiment of this application. The PTA can use an arbitrator to determine whether one or more of the following—SLB / Wi-Fi / SLE / BT / BLE—use radio frequency (RF) and the RF occupancy status. For example, if the SLB needs to use RF, it can request access from the arbitrator. The arbitrator can then decide whether the SLB is allowed to use RF based on its access request, access policy, and actual occupancy status. The PTA architecture can be a two-line, three-line, or four-line architecture, etc., and can be designed and configured according to business requirements. Figure 24 As can be seen, the hardware arbitration time division (PTA) strategy includes time division of any combination of transmit (TX) and receive (RX) signals from each party in SLB / Wi-Fi / SLE / BT / BLE. The PTA module can transmit the occupancy status of the RF channel to each party, using different level signals to indicate that the RF channel is occupied by one or more of SLB / Wi-Fi / SLE / BT / BLE. This level signal is used to notify the software or hardware to perform the corresponding processing. Different services can also be assigned different PTA priorities, with higher-priority services able to preempt air interface resources.

[0411] The foregoing mainly describes the solutions provided in the embodiments of this application from the perspective of interaction between various devices. It is understood that each device, such as the first node, second node, third node, etc., includes corresponding hardware structures and / or software modules to perform the aforementioned functions. Those skilled in the art should readily recognize that, in conjunction with the algorithm steps of the examples described in the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0412] This application embodiment can group the first node, second node, third node, etc., into functional modules according to the above method example. For example, each functional group can be assigned to a separate functional module, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. It should be noted that the grouping of modules in this application embodiment is illustrative and only represents one logical functional grouping; other grouping methods may be used in actual implementation.

[0413] Figure 25 A structural diagram of a communication device 2500 is shown, which can be used to perform the functions of the first node involved in the above embodiments. As one possible implementation, Figure 25 The communication device 2500 shown includes a transceiver unit 2501.

[0414] In one example, transceiver unit 2501 is used to send first information and second information; the first information is used to instruct a second node to send a first transmission resource for a first signal, and the second information is used to instruct a third node to send a second transmission resource for a second signal; the second transmission resource and the first transmission resource partially overlap; the first signal is used by the first node to obtain channel information, and the second signal is not used by the first node to obtain channel information. For example, transceiver unit 2501 may support communication device 2500 to execute S501-S502.

[0415] In another example, transceiver unit 2501 is used to receive third information, send fourth information, and transmit a first signal on a first transmission resource; the third information is used to indicate the first transmission resource for the first node to transmit the first signal, and the fourth information is used to indicate the second transmission resource for the third node to transmit the second signal, the first transmission resource and the second transmission resource partially overlap; 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 channel information. For example, transceiver unit 2501 can support communication device 2500 to execute S1001, S1003-S1004.

[0416] In another example, transceiver unit 2501 is used to send fifth information and sixth information; to send a first signal on a first transmission resource; the fifth information is used to instruct a second node to send a second signal on a second transmission resource; the sixth information is used to instruct a third transmission resource for a third node to receive the first signal; the first transmission resource and the second transmission resource partially overlap; 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 channel information. For example, transceiver unit 2501 may support communication device 2500 to execute S1101-S1103.

[0417] In another example, transceiver unit 2501 is used to send ninth information, which instructs the first node to send a first signal on a first transmission resource; the first transmission resource and the second transmission resource partially overlap, and the second transmission resource is used by the second node to send a second signal; wherein 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 channel information. For example, transceiver unit 2501 may support communication device 2500 to execute S1301 and S1303.

[0418] In another example, transceiver unit 2501 is used to receive thirteenth information, which instructs the first node to send a first signal on a first transmission resource; the first transmission resource and the second transmission resource partially overlap, and the second transmission resource is used by the second node to send a second signal; wherein 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 channel information. For example, transceiver unit 2501 may support communication device 2500 to execute S1501 and S1503.

[0419] The descriptions of the first signal, second signal, first transmission resource, second transmission resource, third transmission resource, first information, second information, third information, fourth information, fifth information, sixth information, ninth information, and thirteenth information can be referred to the above method embodiments.

[0420] Specifically, the above Figure 5 , Figure 10 , Figure 11 , Figure 13 , Figure 15 All relevant content of each step involved in the first node in the method embodiment shown can be referenced from the functional description of the corresponding functional module, and will not be repeated here. The communication device 2500 is used to execute Figure 5 , Figure 10 , Figure 11 , Figure 13 , Figure 15 The first node in the communication method shown can achieve the same effect as the communication method described above.

[0421] Figure 26 A structural diagram of a communication device 2600 is shown, which can be used to perform the functions of the second node involved in the above embodiments. As one possible implementation, Figure 26 The communication device 2600 shown includes a transceiver unit 2601.

[0422] In one example, transceiver unit 2601 is configured to receive first information, which instructs a second node to transmit a first signal using a first transmission resource; 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, wherein the first transmission resource partially overlaps with a second transmission resource, the second transmission resource is used by a third node to transmit a second signal, and the second signal is not used by the first node to obtain channel information. For example, transceiver unit 2601 may support communication device 2600 in executing S501 and S503.

[0423] In another example, transceiver unit 2601 is used to transmit third information, which instructs the first node to transmit a first signal using a first transmission resource; the first transmission resource and the second transmission resource partially overlap; the second transmission resource is used by the third node to transmit a second signal; and the first signal is received on resources where the first and second transmission resources do not completely overlap; wherein 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 channel information. For example, transceiver unit 2601 may support communication device 2600 in executing S1001 and S1006.

[0424] In another example, transceiver unit 2601 is used to receive fifth information; the fifth information is used to instruct the second node to send a second signal on a second transmission resource; 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; the first signal is used by the third node to obtain channel information; the second signal is sent on the second transmission resource indicated by the fifth information; the second signal is not used by the third node to obtain channel information. For example, transceiver unit 2601 may support communication device 2600 to execute S1101 and S1104.

[0425] In another example, transceiver unit 2601 is used to receive ninth information, which instructs the first node to send a first signal on a first transmission resource; and to send a second signal on a second transmission resource, wherein the second transmission resource and the first transmission resource partially overlap. The first signal is used by the second node to obtain channel information, while the second signal is not used by the second node to obtain channel information. For example, transceiver unit 2601 may support communication device 2600 in executing S1301 and S1302.

[0426] In another example, transceiver unit 2601 is used to send thirteenth information, which is used by the first node to send a first signal on a first transmission resource; and to send a second signal on a second transmission resource; the second transmission resource and the first transmission resource partially overlap, 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 channel information. For example, transceiver unit 2601 can support communication device 2600 to execute S1501 and S1502.

[0427] 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 be referred to in the above method embodiments.

[0428] Specifically, the above Figure 5 , Figure 10 , Figure 11 , Figure 13 , Figure 15 All relevant content regarding the steps involved in the second node in the illustrated method embodiment can be referenced from the functional descriptions of the corresponding functional modules, and will not be repeated here. The communication device 2600 is used to execute... Figure 5 , Figure 10 , Figure 11 , Figure 13 , Figure 15 The second node in the communication method shown can achieve the same effect as the communication method described above.

[0429] Figure 27 A structural diagram of a communication device 2700 is shown, which can be used to perform the functions of the third node involved in the above embodiments. As one possible implementation, Figure 27 The communication device 2700 shown includes a transceiver unit 2701.

[0430] In one example, transceiver unit 2701 is configured to receive second information, which instructs a third node to transmit a second signal using second transmission resources; the second signal is not used by the first node to obtain channel information; the second signal is transmitted on the second transmission resources indicated by the second information; the second transmission resources partially overlap with the first transmission resources, and the first transmission resources are used by the second node to transmit the first signal, while the first signal is used by the first node to obtain channel information. For example, transceiver unit 2701 may support communication device 2700 in executing S502 and S504.

[0431] In another example, transceiver unit 2701 is used to receive fourth information, which instructs a third node to send a second signal using a second transmission resource; the second transmission resource partially overlaps with a first transmission resource; the first transmission resource is used by the first node to send a first signal; the first signal is used by the second node to obtain channel information; a second signal is sent on the second transmission resource; the second signal is not used by the second node to obtain channel information. For example, transceiver unit 2701 may support communication device 2700 in executing S1003 and S1005.

[0432] In another example, transceiver unit 2701 is used to receive sixth information, which is used to instruct the third node to receive the third transmission resource of the first signal; receive the first signal on the third transmission resource; transmit the first signal on the first transmission resource; the first transmission resource and the second transmission resource partially overlap; the second transmission resource is used by the second node to transmit the second signal; wherein the first signal is used by the third node to obtain channel information, and the second signal is not used by the third node to obtain channel information.

[0433] The 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 in the above method embodiments.

[0434] Specifically, the above Figure 5 , Figure 10 , Figure 11 , Figure 13 , Figure 15 All relevant content regarding the steps involved in the third node in the illustrated method embodiment can be referenced from the functional descriptions of the corresponding functional modules, and will not be repeated here. The communication device 2700 is used to execute... Figure 5 , Figure 10 , Figure 11 , Figure 13 , Figure 15 The third node in the communication method shown can achieve the same effect as the communication method described above.

[0435] The aforementioned processing unit can be a processing module, a processor, or a controller. It can implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. A processor can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc. A transceiver unit can be a communication module, a transceiver circuit, or a communication interface, etc. Any of the aforementioned 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 devices 2500, 2600, and 2700 involved in the embodiments of this application can be... Figure 28 The communication device 2800 shown. For example, the first node, second node, and third node mentioned above can be adopted. Figure 28 The shown composition or includes Figure 28 The components shown. Figure 28 This is a schematic diagram of the composition of a communication device 2800 provided in an embodiment of this application, as shown below. Figure 28 As shown, the communication device 2800 may include a processor 2801, and optionally, may also include a communication line 2802 and a communication interface 2803.

[0436] Furthermore, the communication device 2800 may also include a memory 2804. The processor 2801, the memory 2804, and the communication interface 2803 can be connected via a communication line 2802.

[0437] The processor 2801 can be a central processing unit (CPU), a 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 capabilities, such as circuits, devices, or software modules.

[0438] Communication line 2802 is used to transmit information between the components included in communication device 2800.

[0439] Communication interface 2803 is used for communication with other devices or other communication networks. These other communication networks can be Ethernet, radio access network (RAN), wireless local area network (WLAN), etc. Communication interface 2803 can be a radio frequency module, transceiver, or any communication device capable of communication. This application embodiment uses a radio frequency module as an example to illustrate communication interface 2803. The radio frequency module can include an antenna, radio frequency circuitry, etc., and the radio frequency circuitry can include a radio frequency integrated chip, power amplifier, etc.

[0440] The memory 2804 is used to store instructions. These instructions can be computer programs.

[0441] The memory 2804 can be a read-only memory (ROM) or other type of static storage device that can store static information and / or instructions; it can also be a random access memory (RAM) or other type of dynamic storage device that can store information and / or instructions; it can also be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage, magnetic disk storage media or other magnetic storage devices. Optical disc storage includes compressed optical discs, laser discs, optical discs, universal digital discs, Blu-ray discs, etc.

[0442] It should be noted that the memory 2804 can exist independently of the processor 2801, or it can be integrated with the processor 2801. The memory 2804 can be used to store instructions, program code, or some data, etc. The memory 2804 can be located inside or outside the communication device 2800, without limitation. The processor 2801 is used to execute the instructions stored in the memory 2804 to implement the communication method provided in the following embodiments of this application.

[0443] In one example, processor 2801 may include one or more CPUs, for example Figure 28 CPU0 and CPU1 in the CPU.

[0444] As an optional implementation, the communication device 2800 includes multiple processors, for example, besides Figure 28 In addition to processor 2801, it may also include processor 2807.

[0445] As an optional implementation, the communication device 2800 also includes an output device 2805 and an input device 2806. The input device 2806 is a keyboard, mouse, microphone, or joystick, etc., and the output device 2805 is a display screen, speaker, etc.

[0446] It should be noted that the communication device 2800 can be a desktop computer, laptop computer, network server, mobile phone, tablet computer, wireless terminal, embedded device, chip system, or something else. Figure 28 Equipment with a similar structure. Furthermore... Figure 28 The structural composition shown does not constitute a limitation on the communication device, except... Figure 28 In addition to the components shown, the communication device may include more or fewer components than illustrated, or combine certain components, or have different component arrangements.

[0447] In this embodiment of the application, the chip system may be composed of chips or may include chips and other discrete devices.

[0448] This application also provides a computer-readable storage medium. All or part of the processes in the above method embodiments can be implemented by a computer program instructing related hardware. This program can be stored in the computer-readable storage medium, and when executed, it can include the processes of the above method embodiments. The computer-readable storage medium can be a communication device of any of the foregoing embodiments, such as an internal storage unit including a data transmission end and / or a data receiving end, such as a hard disk or memory of the first node or the second node. The computer-readable storage medium can also be an external storage device of the communication device, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the first node or the second node. Further, the computer-readable storage medium can include both the internal storage unit and the external storage device of the communication device. The computer-readable storage medium is used to store the computer program and other programs and data required by the communication device. The computer-readable storage medium can also be used to temporarily store data that has been output or will be output.

[0449] It should be understood that the collection, storage, use, processing, transmission, provision, and disclosure of user personal information involved in the technical solution of this application all comply with relevant laws and regulations and do not violate public order and good morals. For example, in the technical solution of this application, the processing of user personal information is carried out with the user's authorization; this will not be repeated below.

[0450] It should be noted that the terms "first" and "second," etc., in the specification, claims, and drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0451] It should be understood that in this application, "at least one (item)" means one or more, "more than one" means two or more, "at least two (items)" means two or three or more, and "and / or" is used to describe the relationship between related objects, indicating that there can be three relationships. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) 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.

[0452] It should be understood that in the embodiments of this application, "B corresponding to A" means that B is associated with A. For example, B can be determined based on A. It should also be understood that determining B based on A does not mean that B is determined solely based on A; B can also be determined based on A and / or other information. Furthermore, the term "connection" in the embodiments of this application refers to various connection methods, such as direct connection or indirect connection, to achieve communication between devices, and the embodiments of this application do not impose any limitations on this.

[0453] Unless otherwise specified, the term "transmission" in the embodiments of this application refers to bidirectional transmission, encompassing the actions of sending and / or receiving. Specifically, "transmission" in the embodiments of this application includes sending data, receiving data, or both sending and receiving data. In other words, data transmission here includes uplink and / or downlink data transmission. Data may include channels and / or signals; uplink data transmission refers to uplink channel and / or uplink signal transmission, and downlink data transmission refers to downlink channel and / or downlink signal transmission. The terms "network" and "system" in the embodiments of this application refer to the same concept; a communication system is a communication network.

[0454] Through the above description of the embodiments, those skilled in the art can clearly understand that, for the sake of convenience and brevity, only the grouping of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0455] In the several embodiments provided in this application, it should be understood that the disclosed communication devices and methods can be implemented in other ways. For example, the communication device embodiments described above are merely illustrative. For instance, the grouping of modules or units is only a logical functional grouping, and in actual implementation, there may be other grouping methods. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between devices or units, and may be electrical, mechanical, or other forms.

[0456] The units described as separate components may or may not be physically separate. A component shown as a unit can be one or more physical units; that is, it can be located in one place or distributed in multiple different locations. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0457] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0458] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solutions of the embodiments of this application, essentially, or the parts that contribute to the prior art, or all or part of the technical solutions, can be embodied in the form of a software product. This software product is stored in a storage medium and includes several instructions to cause a device, such as a microcontroller, chip, or processor, to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media for storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0459] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the 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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