Sensing method and corresponding apparatus

Abstract

The embodiments of the present application relate to a sensing method, which can be applied to a communication system of integrated sensing and communication (ISAC). The method comprises: on the basis of a sensing measurement report reported by a sensing node, a central node may determine a sensing link mode for sensing a sensing object and then, on the basis of the sensing link mode, instruct the sensing node to sense the sensing object. Compared with a manner of blindly configuring a transmitting end or receiving end of a sensing object, the present application can reduce the sensing failure rate, and improve the sensing success rate and sensing quality.

Description

A sensing method and corresponding device

[0001] This application claims priority to Chinese Patent Application No. 202411981256.5, filed with the State Intellectual Property Office of China on December 26, 2024, entitled "A Sensing Method and Corresponding Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, specifically to a sensing method and corresponding device. Background Technology

[0003] With the development and advancement of communication technology, future cellular networks will not only enable the interconnection of people and things, but also allow network devices and terminal devices to possess sensing capabilities. This enabling technology, which allows communication and sensing functions to coexist, cooperate, and benefit each other, is called integrated sensing and communication (ISAC).

[0004] During the sensing process, either one sensing node senses the target, meaning this single node both sends a sensing signal and receives an echo signal to complete the sensing of the target; or two sensing nodes sense the target, meaning one sensing node sends a sensing signal and the other receives an echo signal to complete the sensing of the target.

[0005] Currently, the one or two sensing nodes used to sense the target are usually blindly configured as the central node or sensing function network element, which leads to a high sensing failure rate. Summary of the Invention

[0006] This application provides a sensing method for reducing the sensing failure rate and improving sensing quality. This application also provides corresponding apparatus, computer-readable storage media, and computer program products.

[0007] The first aspect of this application provides a sensing method applied to a first communication device or a device within the first communication device. The first communication device may be a network device or a terminal device, and the network device may include an access network device or a core network device. The device within the first communication device may be a component (e.g., a processor, circuit, chip, or chip system) responsible for communication and / or sensing functions within the network device or terminal device, or it may be a logic module or software capable of implementing all or part of the functions of the device within the first communication device. Wherein, if the component responsible for communication and / or sensing functions is a chip, the chip may be a modem chip, also known as a baseband chip, or a system-on-a-chip (SoC) chip containing a modem core, or a system-in-package (SIP) chip. The method includes: acquiring a first sensing measurement report and / or a second sensing measurement report; wherein the first sensing measurement report indicates that the sensing target is located in the transmission coverage area and / or reception coverage area of ​​a second communication device, and the second sensing measurement report indicates that the sensing target is located in the reception coverage area and / or transmission coverage area of ​​a third communication device; determining a first sensing link mode based on the first sensing measurement report and / or the second sensing measurement report; wherein the first sensing link mode instructs the second communication device and / or the third communication device to sense the sensing target.

[0008] In this application, the first communication device can be a central node, a sensing function (SF) network element, a sensing management function (SMF) network element, a transmitting node, or a receiving node, etc. The central node can configure sensing parameters for the transmitting end of the sensing signal, configure sensing parameters for the receiving end of the sensing signal, and / or summarize the sensing results. The central node can be a network device or a terminal device; of course, it can also be other types of devices. The SF network element or SMF network element can be a node used for sensing function management, and its function and form can be the same as or similar to the central node. A transmitting node refers to a node used to transmit sensing signals, also called a transmitter, and a receiving node refers to a node used to receive the echo signal of the sensing signal, also called a receiver. The transmitting node and receiving node can be access network equipment or terminal equipment.

[0009] In this application, the second communication device can be an access network device or a terminal device; the third communication device can also be an access network device or a terminal device.

[0010] In this application, the perceived target can be a stationary target (such as a building) or a moving target (such as a car, a pedestrian, etc.).

[0011] In this application, the transmission coverage area refers to the area covered by the transmission beam, and the reception coverage area refers to the area covered by the reception beam.

[0012] In this application, the first sensing link mode used to instruct the second communication device and / or the third communication device to sense the sensing target can also be described as: the first sensing link mode is a mode in which the second communication device and / or the third communication device senses the sensing target; or, in the first sensing link mode, the sensing target can be sensed by the second communication device and / or the third communication device.

[0013] In this application, the first sensing link mode can be any of the following modes: a single-base sensing mode in which the access network device sends a sensing signal and receives an echo signal; a single-base sensing mode in which the terminal device sends a sensing signal and receives an echo signal; a dual-base sensing mode in which the first access network device sends a sensing signal and the second access network device receives an echo signal; a dual-base sensing mode in which the first terminal device sends a sensing signal and the second terminal device receives an echo signal; a dual-base sensing mode in which the access network device sends a sensing signal and the terminal device receives an echo signal; and a dual-base sensing mode in which the terminal device sends a sensing signal and the access network device receives an echo signal.

[0014] In the first aspect described above, the first communication device or the apparatus within the first communication device can determine a first sensing link mode based on a first sensing measurement report and / or a second sensing measurement report. In this first sensing link mode, the sensed target will be located within the transmission coverage area of ​​the transmitter and the reception coverage area of ​​the receiver in the first sensing link mode. Compared to blindly configuring the transmitter or receiver of the sensed target, this reduces the sensing failure rate, increases the sensing success rate, and improves the sensing quality.

[0015] In one possible implementation, obtaining a first perception measurement report and / or a second perception measurement report includes: receiving a first perception measurement report from a second communication device, and / or receiving a second perception measurement report from a third communication device.

[0016] The method further includes: sending first mode information to a second communication device and / or sending second mode information to a third communication device, wherein the first mode information and / or the second mode information are used to indicate a first sensing link mode.

[0017] In this possible implementation, the first communication device can indicate the first sensing link mode by sending first mode information to the second and / or third communication device, thereby reducing air interface overhead.

[0018] In one possible implementation, the first sensing measurement report includes first indication information and / or second indication information for indicating a sensing trigger event; wherein the first indication information is used to indicate a sensing trigger event where the sensing target is located in the transmission coverage area of ​​the second communication device, and the second indication information is used to indicate a sensing trigger event where the sensing target is located in the reception coverage area of ​​the second communication device; or, the second sensing measurement report includes third indication information and / or fourth indication information for indicating a sensing trigger event; wherein the third indication information is used to indicate a sensing trigger event where the sensing target is located in the transmission coverage area of ​​the third communication device, and the fourth indication information is used to indicate a sensing trigger event where the sensing target is located in the reception coverage area of ​​the third communication device.

[0019] In this application, the sensing trigger event indicated by the first indication information in the first sensing measurement report may include: an event in which the sensing target enters the transmission coverage area of ​​the second communication device, or an event in which the sensing target remains within the transmission coverage area of ​​the second communication device; that is, the first indication information can indicate a sensing trigger event in which the sensing target is located within the transmission coverage area of ​​the second communication device. The first indication information can be indicated by one bit or multiple bits. Taking one bit as an example, if the value of the first indication information is 1, it is used to indicate a sensing trigger event in which the sensing target is located within the transmission coverage area of ​​the second communication device. Of course, the first indication information can also be used to indicate a sensing trigger event in which the sensing target is located within the transmission coverage area of ​​the second communication device by setting the value to 0.

[0020] In this application, the sensing trigger event indicated by the second indication information in the first sensing measurement report may include: an event in which the sensing target enters the receiving coverage area of ​​the second communication device, or an event in which the sensing target remains within the receiving coverage area of ​​the second communication device; that is, the second indication information can indicate a sensing trigger event in which the sensing target is located within the receiving coverage area of ​​the second communication device. If the second indication information is indicated by 1 bit, a value of 1 can be used to indicate a sensing trigger event in which the sensing target is located within the receiving coverage area of ​​the second communication device. Of course, a value of 0 can also be used to indicate a sensing trigger event in which the sensing target is located within the receiving coverage area of ​​the second communication device.

[0021] In this application, the sensing trigger event indicated by the third indication information in the second sensing measurement report may include: an event where the sensing target enters the transmission coverage area of ​​the third communication device, or an event where the sensing target remains within the transmission coverage area of ​​the third communication device; that is, the third indication information can indicate a sensing trigger event where the sensing target is located within the transmission coverage area of ​​the third communication device. If the third indication information is indicated by one bit, a value of 1 can be used to indicate a sensing trigger event where the sensing target is located within the transmission coverage area of ​​the third communication device. Of course, a value of 0 can also be used to indicate a sensing trigger event where the sensing target is located within the transmission coverage area of ​​the third communication device.

[0022] In this application, the sensing trigger event indicated by the fourth indication information in the second sensing measurement report may include: an event where the sensing target enters the receiving coverage area of ​​the third communication device, or an event where the sensing target remains within the receiving coverage area of ​​the third communication device; that is, the fourth indication information can indicate a sensing trigger event where the sensing target is within the receiving coverage area of ​​the third communication device. If the fourth indication information is indicated by 1 bit, a value of 1 can be used to indicate a sensing trigger event where the sensing target is within the receiving coverage area of ​​the third communication device. Of course, a value of 0 can also be used to indicate a sensing trigger event where the sensing target is within the receiving coverage area of ​​the third communication device.

[0023] In this possible implementation, different sensing trigger events can be indicated in the form of first indication information, second indication information, third indication information or fourth indication information, which can reduce the transmission overhead of the first sensing measurement report and / or the second sensing measurement report.

[0024] In one possible implementation, the second communication device is a first network device, and the third communication device is either a second network device or a terminal device. Based on the first sensing measurement report and / or the second sensing measurement report, the first sensing link mode is determined, including:

[0025] The first sensing link mode corresponding to the first indication information and the second indication information is determined from the correspondence between the sensing trigger event and the sensing link mode. The first sensing link mode is the sensing link mode in which the first network device acts as both the transmitter and receiver; or,

[0026] The first sensing link mode corresponding to the first indication information and the fourth indication information is determined from the correspondence between the sensing trigger event and the sensing link mode. The first sensing link mode is a sensing link mode in which the first network device acts as the transmitter and the second network device or terminal device acts as the receiver.

[0027] In this application, both the first network device and the second network device are access network devices.

[0028] In this application, the first sensing link mode can be a single-base sensing mode in which the access network device sends a sensing signal and receives an echo signal; a dual-base sensing mode in which the first access network device sends a sensing signal and the second access network device receives an echo signal; or a dual-base sensing mode in which the access network device sends a sensing signal and the terminal device receives an echo signal.

[0029] In this possible implementation, the first sensing link mode can be determined by the correspondence between sensing trigger events and sensing link modes, which can improve the speed and accuracy of determining the first sensing link mode.

[0030] In one possible implementation, the correspondence between perception trigger events and perception link modes includes:

[0031] In this application, the correspondence between perception trigger events and perception link modes can be represented in the form of a table. This table can be a part of the correspondence. In addition, in this application, the correspondence between perception trigger events and perception link modes is not limited to the form of a table, and the correspondence can also be represented in other forms.

[0032] In this possible implementation, the correspondence between sensing trigger events and sensing link modes is given in tabular form, which can improve the speed and accuracy of determining the sensing link mode.

[0033] In one possible implementation, the third communication device is the first terminal device, and the second communication device is either the second terminal device or a network device. Based on the first sensing measurement report and / or the second sensing measurement report, the first sensing link mode is determined, including:

[0034] The first sensing link mode corresponding to the third and fourth indication information is determined from the correspondence between the sensing trigger event and the sensing link mode. The first sensing link mode is the sensing link mode in which the first terminal device acts as both the transmitter and receiver; or,

[0035] The first sensing link mode corresponding to the third indication information and the second indication information is determined from the correspondence between the sensing trigger event and the sensing link mode. The first sensing link mode is a sensing link mode in which the first terminal device acts as the transmitter and the second terminal device or network device acts as the receiver.

[0036] In this application, the first sensing link mode can be a single-base sensing mode in which the terminal device sends a sensing signal and receives an echo signal; a dual-base sensing mode in which the first terminal device sends a sensing signal and the second terminal device receives an echo signal; or a dual-base sensing mode in which the terminal device sends a sensing signal and the access network device receives an echo signal.

[0037] In this possible implementation, the first sensing link mode can be determined by the correspondence between sensing trigger events and sensing link modes, which can improve the speed and accuracy of determining the first sensing link mode.

[0038] In one possible implementation, the correspondence between perception trigger events and perception link modes includes:

[0039] In this possible implementation, the correspondence between sensing trigger events and sensing link modes is given in tabular form, which can improve the speed and accuracy of determining the sensing link mode.

[0040] In one possible implementation, the first sensing measurement report includes fifth indication information for indicating a sensing trigger event; wherein the fifth indication information is used to indicate a sensing trigger event where the sensing target is located in the transmission coverage area of ​​the second communication device and / or a sensing trigger event in the reception coverage area of ​​the second communication device; or, the second sensing measurement report includes sixth indication information for indicating a sensing trigger event; wherein the sixth indication information is used to indicate a sensing trigger event where the sensing target is located in the transmission coverage area of ​​the third communication device and / or a sensing trigger event in the reception coverage area of ​​the third communication device.

[0041] In this application, the fifth indication information can be used to indicate sensing trigger events where the sensing target is located within the transmission coverage area of ​​the second communication device and / or within the reception coverage area of ​​the second communication device. For example, the fifth indication information can be represented by 2 bits. A value of "00" indicates a sensing trigger event where the sensing target is not within the transmission coverage area of ​​the second communication device and is within the reception coverage area of ​​the second communication device; a value of "01" indicates a sensing trigger event where the sensing target is not within the transmission coverage area of ​​the second communication device but is within the reception coverage area; a value of "10" indicates a sensing trigger event where the sensing target is within the transmission coverage area of ​​the second communication device but not within the reception coverage area; and a value of "11" indicates a sensing trigger event where the sensing target is within both the transmission and reception coverage areas of the second communication device. The sixth indication information can be understood by referring to the fifth indication information. Of course, this is merely an example and is not limited to the 2-bit indication method listed here.

[0042] In this possible implementation, two sensor-triggered events can be indicated by a single instruction, which can improve the efficiency of indicating sensor-triggered events.

[0043] In one possible implementation, the method further includes: sending first mode measurement configuration information to a second communication device and / or sending second mode measurement configuration information to a third communication device; wherein the first mode measurement configuration information is used to indicate whether the second communication device has failed to measure the first sensing link mode, wherein the failure of the first sensing link mode is used to indicate that the detection of the sensing target in the transmission coverage area and / or reception coverage area of ​​the second communication device has failed; or, the second mode measurement configuration information is used to indicate whether the third communication device has failed to measure the first sensing link mode, wherein the failure of the first sensing link mode is used to indicate that the detection of the sensing target in the transmission coverage area and / or reception coverage area of ​​the third communication device has failed.

[0044] In this application, the first mode measurement configuration information or the second mode measurement configuration information may be the configuration information of the mode failure detection reference signal (MFD-RS). The second communication device or the third communication device may detect the MFD-RS. If the detected MFD-RS meets the failure condition, the detection failure may be confirmed. The failure condition may be that the reference signal received power (RSRP) of the MFD-RS is less than a certain threshold.

[0045] In this application, "detection failure" refers to the failure to detect a sensed target in the transmission coverage area and / or the reception coverage area and the failure to detect a target within a certain threshold (e.g., the number of times the target is not detected within a specified time exceeds a set maximum value). Detection failure may occur when the sensed target has moved out of the transmission coverage area and / or the reception coverage area, or when the sensed target has not moved out of the transmission coverage area and / or the reception coverage area, but the sensed target is obscured, making it undetectable.

[0046] In this possible implementation, the first communication device can instruct the second communication device and / or the third communication device to continue detecting the target by using the first mode measurement configuration information and / or using the second mode measurement configuration information. In this way, if a detection failure occurs during the sensing process, the sensing link mode can be switched in a timely manner to reduce the probability of sensing failure.

[0047] In one possible implementation, the failure to detect the sensed target in the transmission coverage area and / or reception coverage area of ​​the second communication device includes at least one of the following: the sensed target is not detected within the coverage area of ​​the transmission angle and / or reception angle of the second communication device; the sensed target is not detected within the distance coverage area of ​​the second communication device; or, the sensing performance parameters of the sensing link corresponding to the first sensing link mode do not meet the sensing requirements for the sensed target. Alternatively, the failure to detect the sensed target in the transmission coverage area and / or reception coverage area of ​​the third communication device includes at least one of the following: the sensed target is not detected within the coverage area of ​​the transmission angle and / or reception angle of the third communication device; the sensed target is not detected within the distance coverage area of ​​the third communication device; or, the sensing performance parameters of the sensing link corresponding to the first sensing link mode do not meet the sensing requirements for the sensed target.

[0048] In this application, the sensing performance parameters may include the signal-to-interference plus noise ratio (SINR), RSRP, resolution, or ambiguity. A failure of the sensing performance parameters to meet the sensing requirements for the target may be due to SINR being less than the corresponding threshold, RSRP being less than the corresponding threshold, or resolution or ambiguity not meeting the corresponding requirements.

[0049] This possible implementation provides several possible scenarios that could lead to detection failure, which can improve the accuracy of target detection.

[0050] In one possible implementation, the method further includes: receiving a first mode failure indication from a second communication device and / or receiving a second mode failure indication from a third communication device, wherein the first mode failure indication and / or the second mode failure indication are used to indicate a first sensing link mode failure; and switching from the first sensing link mode to the second sensing link mode according to the first mode failure indication and / or the second mode failure indication, wherein the transmission coverage of the transmitter and the reception coverage of the receiver corresponding to the second sensing link mode both cover the sensing target.

[0051] In this possible implementation, switching from the first sensing link mode to the second sensing link mode in a timely manner after the first sensing link mode fails can improve the success rate of sensing.

[0052] In one possible implementation, the second sensing link mode is determined based on a third sensing measurement report and / or a fourth sensing measurement report. The third sensing measurement report indicates that the sensing target is located in the transmission coverage area and / or reception coverage area of ​​the fourth communication device, and the fourth sensing measurement report indicates that the sensing target is located in the reception coverage area and / or transmission coverage area of ​​the fifth communication device.

[0053] In this possible implementation, the first communication device determines the second sensing link mode through continuously measured sensing measurement reports, which can improve the accuracy of the second sensing link mode and thus improve the success rate of sensing.

[0054] A second aspect of this application provides a sensing method applied to a second communication device or a device within the second communication device. The second communication device can be a network device or a terminal device, and the network device may include an access network device or a core network device. The device within the second communication device can be a component (e.g., a processor, circuit, chip, or chip system) responsible for communication and / or sensing functions within the network device or terminal device, or it can be a logic module or software capable of implementing all or part of the functions of the device within the second communication device. Wherein, if the component responsible for communication and / or sensing functions is a chip, the chip can be a modem chip (also known as a baseband chip), or a system-on-a-chip (SoC) chip containing a modem core, or a system-in-package (SIP) chip. The method includes: acquiring a first sensing link mode, the first sensing link mode being determined based on a first sensing measurement report; wherein the first sensing measurement report is used to indicate that the sensing target is located within the transmission coverage area and / or reception coverage area of ​​the second communication device; and sensing the sensing target according to the first sensing link mode.

[0055] In this second aspect, the second communication device or the apparatus within the second communication device can perform sensing based on the first sensing link mode. This is because, in the first sensing link mode, the sensing target is located within the transmission coverage area of ​​the transmitting end and the reception coverage area of ​​the receiving end of the corresponding sensing link. Compared to blindly configuring the transmitting or receiving end of the sensing target, this reduces the sensing failure rate, increases the sensing success rate, and improves the sensing quality.

[0056] In one possible implementation, the method further includes: sending a first sensing measurement report to a first communication device;

[0057] Obtaining the first sensing link mode includes: receiving first mode information sent by a first communication device, wherein the first mode information is used to indicate the first sensing link mode.

[0058] In this possible implementation, the first sensing link mode can be determined based on the received first mode information, which can reduce air interface overhead.

[0059] In one possible implementation, the first sensing measurement report includes first indication information and / or second indication information for indicating a sensing trigger event; wherein the first indication information is used to indicate a sensing trigger event where the sensing target is located in the transmission coverage area of ​​the second communication device, and the second indication information is used to indicate a sensing trigger event where the sensing target is located in the reception coverage area of ​​the second communication device.

[0060] In this possible implementation, different sensing trigger events can be indicated by first or second indication information, which can reduce the transmission overhead of the first sensing measurement report.

[0061] In one possible implementation, the first sensing measurement report includes fifth indication information for indicating a sensing trigger event; wherein the fifth indication information is used to indicate a sensing trigger event where the sensing target is located in the transmission coverage area of ​​the second communication device and / or a sensing trigger event in the reception coverage area of ​​the second communication device.

[0062] In this possible implementation, two sensor-triggered events can be indicated by a single instruction, which can improve the efficiency of indicating sensor-triggered events.

[0063] In one possible implementation, the method further includes: receiving first mode measurement configuration information from a first communication device; measuring whether a first sensing link mode has failed based on the first mode measurement configuration information; wherein the failure of the first sensing link mode is used to indicate that the detection of the sensing target in the transmission coverage area and / or reception coverage area of ​​the second communication device has failed.

[0064] In this possible implementation, the second communication device can continue to detect the target through mode measurement configuration information. In this way, if a detection failure occurs during the sensing process, the sensing link mode can be switched in time to reduce the probability of sensing failure.

[0065] In one possible implementation, the failure to detect the sensed target in the transmission coverage area and / or reception coverage area of ​​the second communication device includes at least one of the following: the sensed target cannot be detected within the coverage area of ​​the transmission angle and / or reception angle of the second communication device; the sensed target cannot be detected within the distance coverage area of ​​the second communication device; or, the sensing performance parameters of the sensing link corresponding to the first sensing link mode do not meet the sensing requirements for the sensed target.

[0066] This possible implementation provides several possible scenarios that could lead to detection failure, which can improve the accuracy of target detection.

[0067] In one possible implementation, the method further includes: sending a first mode failure indication to a first communication device, the first mode failure indication being used to indicate a first sensing link mode failure.

[0068] In this possible implementation, when the failure of the first sensing link mode is detected, the failure of the first sensing link mode can be indicated by the first mode failure indicator, which can reduce air interface overhead.

[0069] A third aspect of this application provides a communication device, comprising: a transceiver unit and a processing unit; wherein,

[0070] A transceiver unit, or a processing unit, is configured to acquire a first sensing measurement report and / or a second sensing measurement report; wherein the first sensing measurement report indicates that the sensing target is located in the transmission coverage area and / or reception coverage area of ​​the second communication device, and the second sensing measurement report indicates that the sensing target is located in the reception coverage area and / or transmission coverage area of ​​the third communication device;

[0071] The processing unit is configured to determine a first sensing link mode based on a first sensing measurement report and / or a second sensing measurement report; wherein the first sensing link mode is used to instruct a second communication device and / or a third communication device to sense the sensing target.

[0072] In one possible implementation, the transceiver unit is configured to receive a first sensing measurement report from a second communication device and / or receive a second sensing measurement report from a third communication device; and to send first mode information to the second communication device and / or the third communication device, the first mode information being used to indicate a first sensing link mode.

[0073] In one possible implementation, the first sensing measurement report includes first indication information and / or second indication information for indicating a sensing trigger event; wherein the first indication information is used to indicate a sensing trigger event where the sensing target is located in the transmission coverage area of ​​the second communication device, and the second indication information is used to indicate a sensing trigger event where the sensing target is located in the reception coverage area of ​​the second communication device; or, the second sensing measurement report includes third indication information and / or fourth indication information for indicating a sensing trigger event; wherein the third indication information is used to indicate a sensing trigger event where the sensing target is located in the transmission coverage area of ​​the third communication device, and the fourth indication information is used to indicate a sensing trigger event where the sensing target is located in the reception coverage area of ​​the third communication device.

[0074] In one possible implementation, the second communication device is the first network device, and the third communication device is either the second network device or a terminal device.

[0075] The processing unit is configured to determine, from the correspondence between the first indication information and the second indication information, the first perception link mode being a perception link mode in which the first network device acts as both the transmitter and receiver, based on the correspondence between the perception trigger event and the perception link mode; or, to determine, from the correspondence between the first indication information and the fourth indication information, the first perception link mode being a perception link mode in which the first network device acts as the transmitter and the second network device or terminal device acts as the receiver, based on the correspondence between the perception trigger event and the perception link mode.

[0076] In one possible implementation, the correspondence between perception trigger events and perception link modes includes:

[0077] In one possible implementation, the third communication device is the first terminal device, and the second communication device is either a second terminal device or a network device.

[0078] The processing unit is configured to determine, from the correspondence between the sensing trigger event and the sensing link mode, the first sensing link mode corresponding to the third indication information and the fourth indication information, wherein the first sensing link mode is a sensing link mode in which the first terminal device acts as the transmitter and the receiver; or, from the correspondence between the sensing trigger event and the sensing link mode, the first sensing link mode corresponding to the third indication information and the second indication information, wherein the first sensing link mode is a sensing link mode in which the first terminal device acts as the transmitter and the second terminal device or network device acts as the receiver.

[0079] In one possible implementation, the correspondence between perception trigger events and perception link modes includes:

[0080] In one possible implementation, the first sensing measurement report includes fifth indication information for indicating a sensing trigger event; wherein the fifth indication information is used to indicate a sensing trigger event where the sensing target is located in the transmission coverage area of ​​the second communication device and / or a sensing trigger event in the reception coverage area of ​​the second communication device; or, the second sensing measurement report includes sixth indication information for indicating a sensing trigger event; wherein the sixth indication information is used to indicate a sensing trigger event where the sensing target is located in the transmission coverage area of ​​the third communication device and / or a sensing trigger event in the reception coverage area of ​​the third communication device.

[0081] In one possible implementation, the transceiver unit is further configured to send first mode measurement configuration information to a second communication device and / or send second mode measurement configuration information to a third communication device; wherein the first mode measurement configuration information is used to indicate whether the second communication device has failed to measure the first sensing link mode, wherein the failure of the first sensing link mode is used to indicate that the detection of the sensing target in the transmission coverage area and / or reception coverage area of ​​the second communication device has failed; or, the second mode measurement configuration information is used to indicate whether the third communication device has failed to measure the first sensing link mode, wherein the failure of the first sensing link mode is used to indicate that the detection of the sensing target in the transmission coverage area and / or reception coverage area of ​​the third communication device has failed.

[0082] In one possible implementation, the failure to detect the sensed target in the transmission coverage area and / or reception coverage area of ​​the second communication device includes at least one of the following: the sensed target is not detected within the coverage area of ​​the transmission angle and / or reception angle of the second communication device; the sensed target is not detected within the distance coverage area of ​​the second communication device; or, the sensing performance parameters of the sensing link corresponding to the first sensing link mode do not meet the sensing requirements for the sensed target. Alternatively, the failure to detect the sensed target in the transmission coverage area and / or reception coverage area of ​​the third communication device includes at least one of the following: the sensed target is not detected within the coverage area of ​​the transmission angle and / or reception angle of the third communication device; the sensed target is not detected within the distance coverage area of ​​the third communication device; or, the sensing performance parameters of the sensing link corresponding to the first sensing link mode do not meet the sensing requirements for the sensed target.

[0083] In one possible implementation, the transceiver unit is further configured to receive a first mode failure indication from a second communication device and / or receive a second mode failure indication from a third communication device, wherein the first mode failure indication and / or the second mode failure indication are used to indicate that the first sensing link mode has failed; and switch from the first sensing link mode to the second sensing link mode according to the first mode failure indication and / or the second mode failure indication, wherein the transmission coverage range of the transmitter and the reception coverage range of the receiver corresponding to the second sensing link mode both cover the sensing target.

[0084] In one possible implementation, the second sensing link mode is determined based on a third sensing measurement report and / or a fourth sensing measurement report. The third sensing measurement report indicates that the sensing target is located in the transmission coverage area and / or reception coverage area of ​​the fourth communication device, and the fourth sensing measurement report indicates that the sensing target is located in the reception coverage area and / or transmission coverage area of ​​the fifth communication device.

[0085] A fourth aspect of this application provides a communication device, comprising: a transceiver unit and a processing unit; wherein,

[0086] A transceiver unit / processing unit is used to acquire a first sensing link mode, which is determined based on a first sensing measurement report; wherein the first sensing measurement report is used to indicate that the sensing target is located in the transmission coverage area and / or reception coverage area of ​​the second communication device.

[0087] The processing unit is used to perceive the target according to the first perception link mode.

[0088] In one possible implementation, the transceiver unit is configured to send a first sensing measurement report to a first communication device and receive first mode information sent by the first communication device, the first mode information being used to indicate a first sensing link mode.

[0089] In one possible implementation, the first sensing measurement report includes first indication information and / or second indication information for indicating a sensing trigger event; wherein the first indication information is used to indicate a sensing trigger event where the sensing target is located in the transmission coverage area of ​​the second communication device, and the second indication information is used to indicate a sensing trigger event where the sensing target is located in the reception coverage area of ​​the second communication device.

[0090] In one possible implementation, the first sensing measurement report includes fifth indication information for indicating a sensing trigger event; wherein the fifth indication information is used to indicate a sensing trigger event where the sensing target is located in the transmission coverage area of ​​the second communication device and / or a sensing trigger event in the reception coverage area of ​​the second communication device.

[0091] In one possible implementation, the transceiver unit is further configured to receive first mode measurement configuration information from the first communication device; measure whether the first sensing link mode has failed based on the first mode measurement configuration information; wherein, the failure of the first sensing link mode is used to indicate the failure of detection of the sensing target in the transmission coverage area and / or reception coverage area of ​​the second communication device.

[0092] In one possible implementation, the failure to detect the sensed target in the transmission coverage area and / or reception coverage area of ​​the second communication device includes at least one of the following: the sensed target cannot be detected within the coverage area of ​​the transmission angle and / or reception angle of the second communication device; the sensed target cannot be detected within the distance coverage area of ​​the second communication device; or, the sensing performance parameters of the sensing link corresponding to the first sensing link mode do not meet the sensing requirements for the sensed target.

[0093] In one possible implementation, the transceiver unit is further configured to send a first mode failure indication to the first communication device, the first mode failure indication being used to indicate a first sensing link mode failure.

[0094] A fifth aspect of this application provides a communication device comprising one or more processors. The processor is configured to invoke and execute a computer program stored in a memory, such that the processor implements an implementation as described in the first aspect or any of the implementations in the first aspect.

[0095] Optionally, the communication device also includes a transceiver; the processor is also used to control the transceiver to send and receive signals.

[0096] Optionally, the communication device includes a memory in which a computer program is stored.

[0097] Optionally, the communication device further includes a communication interface for communicating with modules outside the communication device.

[0098] The communication device described in the fifth aspect above can be a device or a chip (system) within a device. In some possible designs, when the communication device is a chip system, it can be composed of chips or may include chips and other discrete components.

[0099] A sixth aspect of this application provides a communication device comprising one or more processors. The processor is configured to invoke and execute a computer program stored in a memory, such that the processor implements as described in the second aspect or any of the implementations in the second aspect.

[0100] Optionally, the communication device also includes a transceiver; the processor is also used to control the transceiver to send and receive signals.

[0101] Optionally, the communication device includes a memory in which a computer program is stored.

[0102] Optionally, the communication device further includes a communication interface for communicating with modules outside the communication device.

[0103] The communication device described in the sixth aspect above can be a device or a chip (system) within a device. In some possible designs, when the communication device is a chip system, it can be composed of chips or may include chips and other discrete components.

[0104] The seventh aspect of this application provides a communication device, which may be a first communication device or a device in the first communication device, or a module or unit (e.g., a chip, a chip system, or a circuit) in the first communication device or a device in the first communication device that performs the methods / operations / steps / actions described in the first aspect or any implementation of the first aspect.

[0105] The eighth aspect of this application provides a communication device, which can be a second communication device / device in a second communication device, or a module or unit (e.g., a chip, a chip system, or a circuit) in a second communication device / device in a second communication device that performs the methods / operations / steps / actions described in the second aspect or any implementation thereof.

[0106] The ninth aspect of this application provides a computer-readable storage medium including computer instructions that, when executed on a computer, cause the computer to perform an implementation as described in the first aspect or any of the first aspects.

[0107] The tenth aspect of this application provides a computer-readable storage medium including computer instructions that, when executed on a computer, cause the computer to perform an implementation as described in the second aspect or any of the second aspects.

[0108] The eleventh aspect of this application provides a computer program product including instructions that, when run on a computer, cause the computer to perform an implementation as described in the first aspect or any of the first aspects.

[0109] The twelfth aspect of this application provides a computer program product including instructions that, when run on a computer, cause the computer to perform an implementation as described in the second aspect or any of the second aspects.

[0110] The thirteenth aspect of this application provides a chip device including a processor for calling a program stored in a memory, such that the processor executes the first aspect or any implementation thereof.

[0111] Optionally, the memory may be located inside or outside the chip device.

[0112] The fourteenth aspect of this application provides a chip device including a processor for calling a program stored in a memory, such that the processor executes the second aspect or any implementation thereof described above.

[0113] Optionally, the memory may be located inside or outside the chip device.

[0114] The fifteenth aspect of this application provides a communication system, which includes a first communication device / means in the first communication device and a second communication device / means in the second communication device. The first communication device / means in the first communication device is used to perform the first aspect or any implementation thereof, and the second communication device / means in the second communication device is used to perform the second aspect or any implementation thereof.

[0115] The technical effects of the second, third, or fourth aspects, or any possible implementation of the second, third, or fourth aspects, and the fifth to fifteenth aspects, can be found in the first aspect or the technical effects of different possible implementations of the first aspect, and will not be repeated here. Attached Figure Description

[0116] Figure 1A is a schematic diagram of an example of a perception scenario provided in an embodiment of this application;

[0117] Figure 1B is another example schematic diagram of the perception scenario provided in the embodiments of this application;

[0118] Figures 1C to 1H are schematic diagrams of several different sensing link modes;

[0119] Figure 2 is a schematic diagram of an embodiment of the communication method provided in this application;

[0120] Figure 3 is a schematic diagram of another embodiment of the communication method provided in this application;

[0121] Figures 4A to 4E are schematic diagrams of scenarios where the sensing link mode detection fails according to the embodiments of this application;

[0122] Figure 5 is a schematic diagram of the sensing link management provided in an embodiment of this application;

[0123] Figure 6 is a schematic diagram of another embodiment of the communication method provided in this application;

[0124] Figure 7 is a schematic diagram of another embodiment of the communication method provided in this application;

[0125] Figure 8 is a schematic diagram of another embodiment of the communication method provided in this application;

[0126] Figures 9 to 13 are schematic diagrams of the communication device provided in the embodiments of this application. Detailed Implementation

[0127] The embodiments of this application are described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. As those skilled in the art will understand, with the development of technology and the emergence of new scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0128] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0129] This application provides a sensing method to reduce the sensing failure rate and improve sensing quality. This application also provides corresponding apparatus, computer-readable storage media, and computer program products. These are described in detail below.

[0130] The technical solutions of this application can be applied to various communication systems, such as: satellite communication, 5th generation (5G) systems or new radio (NR), long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, universal mobile telecommunication systems (UMTS), vehicle to everything (V2X) communication systems, and future communication networks or systems after 5G networks, etc.

[0131] In addition to having stronger communication capabilities, the aforementioned communication system can also have sensing capabilities. It can be a communication system with integrated sensing and communication (ISAC). An integrated sensing and communication system means that the communication system can communicate through communication signals (which can also be described as communication channels) and perform sensing and measurement through sensing signals (which can also be described as sensing channels).

[0132] In this application, "perception" refers to using the transmission, reflection, and scattering of radio waves (radio frequency signals) to sense the surrounding environment and detect targets. For example, in vehicle-to-everything (V2X) systems, sensing signals are used to detect other vehicles or objects around vehicles; in imaging systems, sensing signals are used to image target points (buildings, vehicles, and other tangible objects) in the environment. Of course, the communication system in this application can also be an industrial automation system or other communication systems that require sensing.

[0133] The communication system described in this application can be a communication system based on orthogonal frequency division multiplexing (OFDM) and / or time division multiplexing (TDM), or a communication system or communication and sensing system based on frequency modulated continuous waveform (FMCW).

[0134] For ease of understanding, the technical terms involved in the embodiments of this application are briefly introduced below:

[0135] 1. Sensing Node: A communication device used for sensing, which may include a transmitter (Tx), a receiver (Rx), or a transceiver integrated communication device.

[0136] 2. Transmitter: A communication device that transmits communication signals and / or sensing signals (SS), also known as a transmitting node or transmitting device.

[0137] 3. Receiver: A communication device that receives the echo signal of communication signals and / or sensing signals; it may also be called a receiving node or receiving device.

[0138] 4. Sensing Signal: This refers to the radio frequency signal used to sense the environment or target. SS can be a sensing reference signal (SERS), a positioning reference signal (PRS), or a sounding reference signal (SRS), etc. Sensing signals can be transmitted in the form of beams.

[0139] 5. Echo signal (ES): refers to the signal after the sensing signal has been transmitted, reflected or scattered. The sensing result can be determined by measuring the echo signal, which can be received by beamforming.

[0140] 6. Beam: A beam is a communication resource. A beam can be wide, narrow, or other types of beams. The technology used to form a beam can be beamforming technology or other techniques. Beamforming technology can specifically be digital beamforming technology, analog beamforming technology, and hybrid digital or analog beamforming technology. Different beams can be considered different resources. The beam used to transmit signals can be called the transmission beam (Tx beam), and the beam used to receive signals can be called the reception beam (Rx beam). The transmission beam refers to the distribution of signal strength in different directions in space after the signal is transmitted through the antenna, and the reception beam refers to the distribution of signal strength in different directions in space of the wireless signal received from the antenna.

[0141] 7. Central node: refers to the communication device that configures sensing parameters for the transmitting end or receiving end of the sensing signal, and / or the communication device that summarizes the sensing results.

[0142] 8. The terms "system" and "network" in the embodiments of this application can be used interchangeably. "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone, 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 of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, "at least one of A, B, and C" includes A, B, C, AB, AC, BC, or ABC. And, unless otherwise specified, the ordinal numbers such as "first" and "second" mentioned in the embodiments of this application are used to distinguish multiple objects and are not used to limit the order, sequence, priority, or importance of multiple objects.

[0143] 9. In the embodiments of this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which may include sending directly via the air interface or sending indirectly via the air interface from other units or modules. "Receive information from YY" can be understood as the source of the information being YY, which may include receiving directly from YY via the air interface or receiving indirectly from YY via the air interface from other units or modules. "Send" can also be understood as the "output" of the chip interface, and "receive" can also be understood as the "input" of the chip interface.

[0144] In other words, sending and receiving can occur between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via buses, wiring, or interfaces.

[0145] It is understandable that information may undergo necessary processing, such as encoding and modulation, between the source and destination, but the destination can understand the valid information from the source. Similar statements in this application can be interpreted in a similar way and will not be elaborated further.

[0146] 10. In the embodiments of this application, "instruction" may include direct instruction and indirect instruction, as well as explicit instruction and implicit instruction. The information indicated by a certain piece of information (hereinafter referred to as instruction information) is called the information to be instructed. In the specific implementation process, there are many ways to indicate the information to be instructed, such as, but not limited to, directly indicating the information to be instructed, such as the information to be instructed itself or its index. It can also indirectly indicate the information to be instructed by indicating other information, where there is an association between the other information and the information to be instructed; or it can only indicate a part of the information to be instructed, while the other parts of the information to be instructed are known or pre-agreed upon. For example, the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol predefined) arrangement order of various information, thereby reducing the instruction overhead to a certain extent. This application does not limit the specific method of instruction. It is understood that for the sender of the instruction information, the instruction information can be used to indicate the information to be instructed; for the receiver of the instruction information, the instruction information can be used to determine the information to be instructed.

[0147] In this application, unless otherwise specified, the same or similar parts between the various embodiments can be referred to each other. In the various embodiments of this application, and the various methods / designs / implementations within each embodiment, unless otherwise specified or logically conflicting, the terminology and / or descriptions between different embodiments and between the various methods / designs / implementations within each embodiment are consistent and can be mutually referenced. The technical features in different embodiments and the various methods / designs / implementations within each embodiment can be combined to form new embodiments, methods, or implementations based on their inherent logical relationships. The following descriptions of the embodiments of this application do not constitute a limitation on the scope of protection of this application.

[0148] The sensing method provided in this application can be applied to either a single sensing scenario or a joint sensing scenario. A single sensing scenario refers to a scenario where a single sensing node obtains the required sensing result after sensing. A joint sensing scenario refers to a scenario where multiple sensing nodes sense the same sensing area, and then each sensing node sends its own determined sensing result to a central node, which then fuses the multiple sensing results to reduce sensing uncertainty and improve sensing performance.

[0149] The individual or joint sensing scenarios involved in the embodiments of this application can be single-base sensing scenarios, dual-base sensing scenarios, or hybrid single-base and dual-base sensing scenarios. A dual-base sensing scenario refers to a sensing scenario where the transmitter of the sensing signal and the receiver of the echo signal are not the same communication device. A single-base sensing scenario refers to a sensing scenario where the transmitter of the sensing signal and the receiver of the echo signal belong to the same communication device; a single-base sensing scenario can also be called a self-sensing scenario. A hybrid dual-base and single-base sensing scenario refers to a sensing scenario in which the participating communication devices include both integrated transceiver communication devices and separate transceiver communication devices.

[0150] The dual-base sensing scenario can be understood by referring to Figure 1A. As shown in Figure 1A, this dual-base sensing scenario includes two transmitters, four receivers, and multiple target objects. The two transmitters are transmitter Tx101 and transmitter Tx102; the four receivers are receivers Rx103, receiver Rx104, receiver Rx105, and receiver Rx106. This dual-base sensing scenario also includes a central node 107; the target objects can be various types of buildings or other objects. The central node 107 can configure resources for the transmitters or receivers based on information from at least one sensing direction and the first sensing performance requirements corresponding to each sensing direction.

[0151] The transmitter Tx101 transmits a sensing signal SS1, and the echo signal ES1 generated by SS1 after passing through the building is received by the receiver Rx103.

[0152] Transmitter Tx102 transmits SS2, and ES2 generated by SS2 passing through a building is received by receiver Rx103; Transmitter Tx102 transmits SS3, and ES3 generated by SS3 passing through a building is received by receiver Rx104; Transmitter Tx102 transmits SS4, and ES4 generated by SS4 passing through a building is received by receiver Rx105; ES5 generated by SS4 passing through a building is received by receiver Rx106.

[0153] It should be noted that SS2, SS3, and SS4 can be sensing signals emitted from the same transmitting beam. However, sensing signals within the range of this transmitting beam will produce echo signals in different directions when encountering buildings at different locations, such as ES2, ES3, ES4, and ES5. Echo signals in different directions can be received by different receiving terminals. Of course, SS2, SS3, and SS4 can also be sensing signals in different beams of the transmitting terminal Tx102.

[0154] In a dual-base sensing scenario, echo signals generated by sensing signals transmitted from the same transmitter can be received by different receivers. For example, ES2 is received by receiver Rx103, ES3 by receiver Rx104, ES4 by receiver Rx105, and ES5 by receiver Rx106. Echo signals generated by sensing signals transmitted from different transmitters can also be received by the same receiver, such as ES1 and ES2 being received by receiver Rx103. Of course, echo signals generated by sensing signals transmitted from the same transmitter can also be received by only one receiver. This application does not limit the correspondence between transmitters and receivers; it is related to the number of transmitters or receivers within a certain area. In either case, the receiver can determine the sensing result based on its received echo signals. Alternatively, the receiver can send relevant data from the received echo signals to other communication devices for them to determine the sensing result.

[0155] The single-base sensing scenario can be understood with reference to Figure 1B. As shown in Figure 1B, the single-base sensing scenario may include a central node 107, sensing nodes 108, and multiple target objects. The sensing node 108 includes a transmitter of sensing signals and a receiver of echo signals. The central node 107 can configure resources for the sensing node 108 based on information from at least one sensing direction and information on the first sensing performance requirements corresponding to each sensing direction.

[0156] It should be noted that the single-base sensing scenario can include multiple sensing nodes, not limited to the one shown in Figure 1B. When there are multiple sensing nodes, the central node 107 can also summarize the sensing results of multiple sensing nodes.

[0157] When sensing node 108 measures targets in the environment, it can emit one or more beams. The sensing signals SS on the one or more beams can detect targets at different locations. The sensing node then receives the corresponding echo signals ES, and can determine the sensing result based on the ES. Of course, sensing node 108 can also send relevant data from the received echo signals to other communication devices, which can then determine the sensing result.

[0158] In the scenarios described in Figures 1A and 1B above, the central node 107 can also be called a sensing function (SF) network element or a sensing management function (SMF) network element, etc.

[0159] In the scenarios described in Figures 1A and 1B above, the receiver, transmitter, and sensing node can all be terminal devices or network devices, and the central node can also be a terminal device or a network device. The receiver, transmitter, sensing node, and central node shown in Figures 1A and 1B are not limited to their specific forms.

[0160] In addition, the hybrid single-base and dual-base sensing scenario refers to a scenario that includes both the sensing process of the transmitter and receiver as shown in Figure 1A, and the sensing process of the sensing node as shown in Figure 1B.

[0161] The above-mentioned single-base sensing scenario and dual-base sensing scenario may involve multiple sensing links. The following describes the multiple sensing links in this application with reference to Figures 1C to 1H.

[0162] As shown in Figure 1C, this is a single-base sensing link where the access network device sends sensing signals and receives echo signals.

[0163] As shown in Figure 1D, this is a single-base sensing link where the terminal device sends sensing signals and receives echo signals.

[0164] As shown in Figure 1E, a dual-base sensing link is formed where the first access network device sends sensing signals and the second access network device receives echo signals.

[0165] As shown in Figure 1F, a dual-base sensing link is formed where the first terminal device sends a sensing signal and the second terminal device receives the echo signal.

[0166] As shown in Figure 1G, this is a dual-base sensing link where the access network device sends sensing signals and the terminal device receives echo signals.

[0167] As shown in Figure 1H, a dual-base sensing link is formed where the terminal device sends a sensing signal and the access network device receives the echo signal.

[0168] Each sensing link shown in Figures 1C to 1H can be understood as a sensing link mode. Therefore, in the single-base sensing scenario and dual-base sensing scenario described above, there can be six sensing link modes as shown in Figures 1C to 1H. In this application, the sensing link mode can also be simply referred to as the sensing mode.

[0169] The terminal equipment and network equipment of this application are described below.

[0170] Terminal equipment: can be a wireless terminal device capable of receiving network device scheduling and instruction information. The wireless terminal device can be a device that provides voice and / or data connectivity to the user, or a handheld device with wireless connectivity, or other processing device connected to a wireless modem.

[0171] Terminal devices can communicate with one or more core networks or the Internet via a radio access network (RAN). Terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones), computers, and data cards. For example, they can be portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the RAN. Examples include personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), tablets, and computers with wireless transceiver capabilities. Wireless terminal equipment can also be called subscriber unit, subscriber station, mobile station (MS), remote station, access point (AP), remote terminal, access terminal, user terminal, user agent, subscriber station (SS), customer premises equipment (CPE), terminal, user equipment (UE), mobile terminal (MT), etc.

[0172] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices or smart wearable devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets, smart helmets, and smart jewelry for vital sign detection.

[0173] Terminal devices can also be drones, robots, terminals in device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in telemedicine or telehealth services, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, etc.

[0174] Furthermore, terminal devices can also be terminal devices in future communication systems beyond the fifth generation (5G) (such as 5G Advanced communication systems) or in future evolved public land mobile networks (PLMNs). For example, 5G Advanced networks can further expand the form and function of 5G communication terminals; 5G Advanced terminals include, but are not limited to, vehicles, cellular network terminals (integrating satellite terminal functions), drones, and Internet of Things (IoT) devices.

[0175] In this embodiment, the terminal device can also obtain artificial intelligence (AI) services provided by the network device. Optionally, the terminal device can also have AI processing capabilities.

[0176] In this embodiment of the application, the terminal device may also have a sensing function, and the terminal device may sense the sensing target by transmitting sensing signals or receiving echo signals.

[0177] Network equipment: This can be any device within a wireless network. For example, a network device can be a RAN node (or device) that connects terminal devices to the wireless network, and can also be called a base station. Currently, some examples of RAN equipment include: base station (BS), evolved NodeB (eNodeB), gNB (gNodeB) in 5G communication systems, transmission reception point (TRP), evolved Node B (eNB), radio network controller (RNC), Node B (NB), home base station (e.g., home evolved Node B, or home Node B, HNB), base band unit (BBU) or wireless fidelity (Wi-Fi) access point (AP), terminals that function as base stations in device-to-device (D2D) communication, satellites, drones, unmanned spacecraft, communication balloons, and other non-ground equipment. In addition, in one network architecture, network devices may include central unit (CU) nodes, distributed unit (DU) nodes, or RAN devices that include both CU and DU nodes.

[0178] Optionally, the RAN node can also be a macro base station, micro base station, indoor station, relay node, donor node, or a radio controller in a cloud radio access network (CRAN) scenario. The RAN node can also be a server, wearable device, vehicle, or in-vehicle equipment. For example, the access network equipment in vehicle-to-everything (V2X) technology can be a roadside unit (RSU).

[0179] In another possible scenario, multiple RAN nodes collaborate to assist the terminal in achieving wireless access, with different RAN nodes each implementing some of the base station's functions. For example, RAN nodes can be CUs, DUs, CUs (control plane, CP), CUs (user plane, UP), or radio units (RUs). CUs and DUs can be configured separately or included in the same network element, such as a baseband unit (BBU). RUs can be included in radio equipment or radio units, such as remote radio units (RRUs), active antenna units (AAUs), radio heads (RHs), or remote radio heads (RRHs).

[0180] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an open access network (open RAN, O-RAN, or ORAN) system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software modules and hardware modules.

[0181] Communication between access network devices and terminal devices follows a specific protocol layer structure. This protocol layer may include a control plane protocol layer and a user plane protocol layer. The control plane protocol layer may include at least one of the following: radio resource control (RRC) layer, packet data convergence protocol (PDCP) layer, radio link control (RLC) layer, media access control (MAC) layer, or physical (PHY) layer, etc. The user plane protocol layer may include at least one of the following: service data adaptation protocol (SDAP) layer, PDCP layer, RLC layer, MAC layer, or physical layer, etc.

[0182] The correspondence between network elements and their achievable protocol layer functions in the ORAN system can be found in Table 1 below.

[0183] Table 1

[0184] Network devices can be other devices that provide wireless communication functions for terminal devices. The embodiments of this application do not limit the specific technology or device form used in the network device. For ease of description, the embodiments of this application are not limited.

[0185] Network equipment may also include core network equipment, such as the Mobility Management Entity (MME), Home Subscriber Server (HSS), Serving Gateway (S-GW), Policy and Charging Rules Function (PCRF), and Public Data Network Gateway (PDN gateway or P-GW) in 4th generation (4G) networks; and access and mobility management function (AMF), user plane function (UPF), or session management function (SMF) in 5G networks. Furthermore, this core network equipment may also include other core network equipment in 5G networks and next-generation networks of 5G networks.

[0186] In this embodiment of the application, the network device can also be a network node with AI capabilities, which can provide AI services to terminal devices or other network devices. For example, it can be an AI node, computing power node, RAN node with AI capabilities, core network element with AI capabilities, etc. on the network side (access network or core network).

[0187] In this embodiment of the application, the network device can also be a network node with sensing capabilities, which can provide sensing services for terminal devices or other network devices. The network node can sense the sensing target by transmitting sensing signals or receiving echo signals.

[0188] The sensing method provided in this application embodiment is described below from the perspective of a first communication device and a second communication device. The first communication device can refer to the device itself, i.e., the first communication device; it can also be a component within the device responsible for communication and / or sensing functions (e.g., a processor, circuit, chip, or chip system); or it can be a logic module or software capable of implementing all or part of the functions of the first communication device, i.e., a device within the first communication device. If the component responsible for communication and / or sensing functions is a chip, this chip can be a modem chip, also known as a baseband chip, or a system-on-a-chip (SoC) chip containing a modem core, or a system-in-package (SIP) chip. The device can be a network device or a terminal device, and the network device can include access network equipment or core network equipment. The second communication device can refer to the device itself, i.e., the second communication device. The second communication device can also be a component within a device responsible for communication and / or sensing functions (e.g., a processor, circuit, chip, or chip system), or it can be a logic module or software capable of implementing all or part of the functions of the second communication device, i.e., a device within the second communication equipment. Wherein, if the component responsible for communication and / or sensing functions is a chip, this chip can be a modem chip (also known as a baseband chip), or a system-on-a-chip (SoC) chip containing a modem core, or a system-in-package (SIP) chip. The device can be an access network device or a terminal device.

[0189] The first communication device can be a central node, an SF network element / SMF network element, a transmitting node (transmitter), or a receiving node (receiver), etc. The second communication device can be a device corresponding to the transmitting node (transmitter), a device corresponding to the receiving node (receiver), or a sensing node.

[0190] As shown in Figure 2, the sensing method provided in this application embodiment includes:

[0191] S201. The first communication device acquires a first sensing measurement report and / or a second sensing measurement report.

[0192] The first sensing measurement report is used to indicate that the sensing target is located in the transmission coverage area and / or reception coverage area of ​​the second communication device, and the second sensing measurement report is used to indicate that the sensing target is located in the reception coverage area and / or transmission coverage area of ​​the third communication device.

[0193] In this application, the second communication device can be an access network device or a terminal device; the third communication device can also be an access network device or a terminal device.

[0194] In this application, the perceived target can be a stationary target (such as a building) or a moving target (such as a car, a pedestrian, etc.).

[0195] In this application, the transmission coverage area refers to the area covered by the transmission beam, and the reception coverage area refers to the area covered by the reception beam.

[0196] S202. The first communication device determines a first sensing link mode based on the first sensing measurement report and / or the second sensing measurement report; wherein the first sensing link mode is used to instruct the second communication device and / or the third communication device to sense the sensing target.

[0197] In this application, the first sensing link mode used to instruct the second communication device and / or the third communication device to sense the sensing target can also be described as: the first sensing link mode is a mode in which the second communication device and / or the third communication device senses the sensing target; or, in the first sensing link mode, the sensing target can be sensed by the second communication device and / or the third communication device.

[0198] In this application, the first sensing link mode can be any of the following modes: a single-base sensing mode in which the access network device sends a sensing signal and receives an echo signal; a single-base sensing mode in which the terminal device sends a sensing signal and receives an echo signal; a dual-base sensing mode in which the first access network device sends a sensing signal and the second access network device receives an echo signal; a dual-base sensing mode in which the first terminal device sends a sensing signal and the second terminal device receives an echo signal; a dual-base sensing mode in which the access network device sends a sensing signal and the terminal device receives an echo signal; and a dual-base sensing mode in which the terminal device sends a sensing signal and the access network device receives an echo signal. The first sensing link mode can be any one of these modes.

[0199] For an understanding of the sensing link mode, please refer to the introduction in Figures 1C to 1H above.

[0200] In the solution provided in this application embodiment, the first communication device or the apparatus within the first communication device can determine the first sensing link mode based on the first sensing measurement report and / or the second sensing measurement report. Thus, in the first sensing link mode, the sensing target will be located within the transmission coverage area of ​​the transmitting end and the reception coverage area of ​​the receiving end of the corresponding first sensing link mode. Compared to blindly configuring the transmitting or receiving end of the sensing target, this reduces the sensing failure rate, increases the sensing success rate, and improves the sensing quality.

[0201] As shown in Figure 3, the sensing method provided in this application embodiment includes:

[0202] S301a. The second communication device sends a first sensing measurement report to the first communication device. Correspondingly, the first communication device receives the first sensing measurement report from the second communication device.

[0203] S301b. The third communication device sends a second sensing measurement report to the first communication device. Correspondingly, the first communication device receives the second sensing measurement report from the third communication device.

[0204] S302. The first communication device determines a first sensing link mode based on the first sensing measurement report and / or the second sensing measurement report; wherein the first sensing link mode is used to instruct the second communication device and / or the third communication device to sense the sensing target.

[0205] S303a. The first communication device sends first mode information to the second communication device. Correspondingly, the second communication device receives the first mode information sent from the first communication device.

[0206] The first mode information is used to indicate the first sensing link mode. This first mode information can be carried by at least one of the following: radio resource control (RRC) messages, downlink control information (DCI), uplink control information (UCI), medium access control element (MAC CE), or other Xn interface messages.

[0207] S303b. The first communication device sends second mode information to the third communication device. Correspondingly, the third communication device receives the second mode information sent from the first communication device.

[0208] The second mode information is used to indicate the first sensing link mode. This second mode information can also be carried by at least one of the following: RRC message, DCI, UCI, MAC CE, or other Xn interface messages.

[0209] S304a. The second communication device senses the target.

[0210] The sensing process can involve the second communication device sending sensing signals and / or receiving echo signals. If the first sensing link mode indicates that the second communication device is performing single-base sensing, then the second communication device both sends sensing signals and receives echo signals. If the first sensing link mode indicates that the second communication device is the transmitter in dual-base sensing, then the second communication device sends sensing signals. If the first sensing link mode indicates that the second communication device is the receiver in dual-base sensing, then the second communication device receives echo signals.

[0211] S304b. The third communication device senses the target.

[0212] The sensing process can involve a third communication device sending sensing signals and / or receiving echo signals. If the first sensing link mode indicates that the third communication device is performing single-base sensing, then the third communication device both sends sensing signals and receives echo signals; if the first sensing link mode indicates that the third communication device is the transmitter in dual-base sensing, then the third communication device sends sensing signals; if the first sensing link mode indicates that the third communication device is the receiver in dual-base sensing, then the third communication device receives echo signals.

[0213] As mentioned above, S301a and S301b can be executed, or both can be executed. If S301a is executed, then S303a and S304a will also be executed; if S301b is executed, then S303b and S304b will also be executed.

[0214] Alternatively, S305a or S306a may be included after S303a, and S305b or S306b may be included after S303b.

[0215] S305a. The second communication device sends a first configuration completion response to the first communication device. Correspondingly, the first communication device receives the first configuration completion response from the second communication device.

[0216] The first configuration completion response is used to indicate that the second communication device has completed the sensing configuration based on the first sensing link mode and can perform sensing.

[0217] S305b. The third communication device sends a second configuration completion response to the first communication device. Correspondingly, the first communication device receives the second configuration completion response from the third communication device.

[0218] The second configuration completion response is used to indicate that the third communication device has completed the sensing configuration based on the first sensing link mode and can perform sensing.

[0219] S306a. The first communication device sends a first sensing measurement activation message to the second communication device. Correspondingly, the second communication device receives the first sensing measurement activation message.

[0220] The first sensing measurement activation message can be sent by the first communication device as needed. The second communication device will execute S304a only after receiving the first sensing measurement activation message. If the first sensing measurement activation message is not received, the second communication device may not execute S304a.

[0221] S306b. The first communication device sends a second sensing measurement activation message to the third communication device. Correspondingly, the third communication device receives the second sensing measurement activation message.

[0222] The third communication device will execute S304b only after receiving the second sensing measurement activation message. If the second sensing measurement activation message is not received, the third communication device may not execute S304b.

[0223] The solution provided in this application embodiment allows the first communication device to indicate the first sensing link mode by sending first mode information to the second communication device and / or sending second mode information to the third communication device, thereby reducing air interface overhead.

[0224] In the communication method described in Figure 2 or Figure 3 above, the first sensing measurement report may include first indication information and / or second indication information for indicating a sensing trigger event; wherein the first indication information is used to indicate a sensing trigger event in which the sensing target is located in the transmission coverage area of ​​the second communication device, and the second indication information is used to indicate a sensing trigger event in which the sensing target is located in the reception coverage area of ​​the second communication device; or, the second sensing measurement report may include third indication information and / or fourth indication information for indicating a sensing trigger event; wherein the third indication information is used to indicate a sensing trigger event in which the sensing target is located in the transmission coverage area of ​​the third communication device, and the fourth indication information is used to indicate a sensing trigger event in which the sensing target is located in the reception coverage area of ​​the third communication device.

[0225] In this application, the sensing trigger event indicated by the first indication information in the first sensing measurement report may include: an event in which the sensing target enters the transmission coverage area of ​​the second communication device, or an event in which the sensing target remains within the transmission coverage area of ​​the second communication device; that is, the first indication information can indicate a sensing trigger event in which the sensing target is located within the transmission coverage area of ​​the second communication device. The first indication information can be indicated by one bit or multiple bits. Taking one bit as an example, if the value of the first indication information is 1, it is used to indicate a sensing trigger event in which the sensing target is located within the transmission coverage area of ​​the second communication device. Of course, the first indication information can also be used to indicate a sensing trigger event in which the sensing target is located within the transmission coverage area of ​​the second communication device by setting the value to 0.

[0226] In this application, the sensing trigger event indicated by the second indication information in the first sensing measurement report may include: an event in which the sensing target enters the receiving coverage area of ​​the second communication device, or an event in which the sensing target remains within the receiving coverage area of ​​the second communication device; that is, the second indication information can indicate a sensing trigger event in which the sensing target is located within the receiving coverage area of ​​the second communication device. If the second indication information is indicated by 1 bit, a value of 1 can be used to indicate a sensing trigger event in which the sensing target is located within the receiving coverage area of ​​the second communication device. Of course, a value of 0 can also be used to indicate a sensing trigger event in which the sensing target is located within the receiving coverage area of ​​the second communication device.

[0227] In this application, the sensing trigger event indicated by the third indication information in the second sensing measurement report may include: an event where the sensing target enters the transmission coverage area of ​​the third communication device, or an event where the sensing target remains within the transmission coverage area of ​​the third communication device; that is, the third indication information can indicate a sensing trigger event where the sensing target is located within the transmission coverage area of ​​the third communication device. If the third indication information is indicated by one bit, a value of 1 can be used to indicate a sensing trigger event where the sensing target is located within the transmission coverage area of ​​the third communication device. Of course, a value of 0 can also be used to indicate a sensing trigger event where the sensing target is located within the transmission coverage area of ​​the third communication device.

[0228] In this application, the sensing trigger event indicated by the fourth indication information in the second sensing measurement report may include: an event where the sensing target enters the receiving coverage area of ​​the third communication device, or an event where the sensing target remains within the receiving coverage area of ​​the third communication device; that is, the fourth indication information can indicate a sensing trigger event where the sensing target is within the receiving coverage area of ​​the third communication device. If the fourth indication information is indicated by 1 bit, a value of 1 can be used to indicate a sensing trigger event where the sensing target is within the receiving coverage area of ​​the third communication device. Of course, a value of 0 can also be used to indicate a sensing trigger event where the sensing target is within the receiving coverage area of ​​the third communication device.

[0229] In this application, different perception trigger events are indicated by first indication information, second indication information, third indication information or fourth indication information, which can reduce the transmission overhead of the first perception measurement report and / or the second perception measurement report.

[0230] The aforementioned first sensing link mode can be determined by the first communication device or a device within the first communication device through the correspondence between sensing trigger events and sensing link modes. This correspondence between sensing trigger events and sensing link modes can be understood by referring to Table 2. As shown in Table 2:

[0231] Table 2: Correspondence between Perception Triggering Events and Perception Link Modes

[0232] Table 2 can also be simplified to the form of Table 3, as shown in Table 3:

[0233] Table 3:

[0234] In Table 3, S-A1-1 can be understood as the first instruction information, S-A1-2 as the second instruction information, S-A2-1 as the third instruction information, and S-A2-2 as the fourth instruction information.

[0235] In Table 2 or Table 3 above, the correspondence between sensing trigger events and sensing link modes is represented in tabular form. This table can be a part or all of the correspondence. Furthermore, in this application, the correspondence between sensing trigger events and sensing link modes is not limited to a tabular form; other forms can also be used to represent this correspondence.

[0236] As can be seen from Table 2 or Table 3 above, if the second communication device is the first network device and the third communication device is the second network device or a terminal device, then S202 or S302 may include:

[0237] The first sensing link mode corresponding to the first indication information and the second indication information is determined from the correspondence between the sensing trigger event and the sensing link mode. The first sensing link mode is the sensing link mode in which the first network device acts as both the transmitter and receiver; or,

[0238] The first sensing link mode corresponding to the first indication information and the fourth indication information is determined from the correspondence between the sensing trigger event and the sensing link mode. The first sensing link mode is a sensing link mode in which the first network device acts as the transmitter and the second network device or terminal device acts as the receiver.

[0239] In this application, both the first network device and the second network device are access network devices.

[0240] In this application, the first sensing link mode can be a single-base sensing mode where the access network device sends a sensing signal and receives an echo signal; a dual-base sensing mode where the first access network device sends a sensing signal and the second access network device receives the echo signal; or a dual-base sensing mode where the access network device sends a sensing signal and the terminal device receives the echo signal. These are the several scenarios shown in Table 4.

[0241] Table 4:

[0242] If represented in the form shown in Table 3, the first sensing link mode in this case can be mode 0, mode 2, or mode 4, i.e., the sensing link modes shown in Figure 1C, Figure 1E, or Figure 1G.

[0243] As can be seen from Table 2 or Table 3 above, the third communication device is the first terminal device, and the second communication device is the second terminal device or network device. S202 or S302 may include:

[0244] The first sensing link mode corresponding to the third and fourth indication information is determined from the correspondence between the sensing trigger event and the sensing link mode. The first sensing link mode is the sensing link mode in which the first terminal device acts as both the transmitter and receiver; or,

[0245] The first sensing link mode corresponding to the third indication information and the second indication information is determined from the correspondence between the sensing trigger event and the sensing link mode. The first sensing link mode is a sensing link mode in which the first terminal device acts as the transmitter and the second terminal device or network device acts as the receiver.

[0246] In this application, the first sensing link mode can be a single-base sensing mode where the terminal device sends a sensing signal and receives an echo signal; a dual-base sensing mode where the first terminal device sends a sensing signal and the second terminal device receives the echo signal; or a dual-base sensing mode where the terminal device sends a sensing signal and the access network device receives the echo signal. These are the several scenarios shown in Table 5.

[0247] Table 5:

[0248] If represented in the form shown in Table 3, the first sensing link mode in this case can be mode1, mode3, or mode5, i.e., the sensing link modes shown in Figure 1D, Figure 1F, or Figure 1H.

[0249] The above-described scheme presents the correspondence between sensing trigger events and sensing link modes in tabular form, which can improve the speed and accuracy of determining sensing link modes.

[0250] The aforementioned scheme uses two indication messages to indicate whether the target is within the transmission coverage area and whether it is within the reception coverage area, respectively. However, in this application, a single indication message can be used to indicate whether the target is within both the transmission and / or reception coverage areas. This approach could be as follows:

[0251] The first sensing measurement report includes fifth indication information for indicating a sensing trigger event; wherein the fifth indication information is used to indicate a sensing trigger event where the sensing target is located in the transmission coverage area of ​​the second communication device and / or a sensing trigger event in the reception coverage area of ​​the second communication device; or, the second sensing measurement report includes sixth indication information for indicating a sensing trigger event; wherein the sixth indication information is used to indicate a sensing trigger event where the sensing target is located in the transmission coverage area of ​​the third communication device and / or a sensing trigger event in the reception coverage area of ​​the third communication device.

[0252] In this application, the fifth indication information can be used to indicate sensing trigger events where the sensing target is located within the transmission coverage area of ​​the second communication device and / or within the reception coverage area of ​​the second communication device. For example, the fifth indication information can be represented by 2 bits. A value of "00" indicates a sensing trigger event where the sensing target is not within the transmission coverage area of ​​the second communication device and is within the reception coverage area of ​​the second communication device; a value of "01" indicates a sensing trigger event where the sensing target is not within the transmission coverage area of ​​the second communication device but is within the reception coverage area; a value of "10" indicates a sensing trigger event where the sensing target is within the transmission coverage area of ​​the second communication device but not within the reception coverage area; and a value of "11" indicates a sensing trigger event where the sensing target is within both the transmission and reception coverage areas of the second communication device. The sixth indication information can be understood by referring to the fifth indication information. Of course, this is merely an example and is not limited to the 2-bit indication method listed here.

[0253] The present application provides a method to indicate two sensor-triggered events using a single indication message, which can improve the efficiency of indicating sensor-triggered events.

[0254] Optionally, the solution provided in the embodiments of this application may further include S307a and / or S307b, wherein S307a may be executed simultaneously with S303a or after S303a; similarly, S307b may be executed simultaneously with S303b or after S303b.

[0255] S307a. The first communication device sends first mode measurement configuration information to the second communication device.

[0256] The first mode measurement configuration information is used to indicate whether the second communication device has failed to measure the first sensing link mode; the failure of the first sensing link mode is used to indicate that the detection of the sensing target in the transmission coverage area and / or reception coverage area of ​​the second communication device has failed.

[0257] S307b. The first communication device sends the second mode measurement configuration information to the third communication device.

[0258] The second mode measurement configuration information is used to indicate whether the third communication device has failed to measure the first sensing link mode; the failure of the first sensing link mode is used to indicate the failure of detection of the sensing target in the transmission coverage area and / or reception coverage area of ​​the third communication device.

[0259] In this application, the first mode measurement configuration information or the second mode measurement configuration information may be the configuration information of the mode failure detection reference signal (MFD-RS). The second communication device or the third communication device may detect the MFD-RS. If the detected MFD-RS meets the failure condition, the detection failure may be confirmed. The failure condition may be that the reference signal received power (RSRP) of the MFD-RS is less than a certain threshold.

[0260] In this application, "detection failure" refers to the failure to detect a sensed target in the transmission coverage area and / or the reception coverage area and the failure to detect a target within a certain threshold (e.g., the number of times the target is not detected within a specified time exceeds a set maximum value). Detection failure may occur when the sensed target has moved out of the transmission coverage area and / or the reception coverage area, or when the sensed target has not moved out of the transmission coverage area and / or the reception coverage area, but the sensed target is obscured, making it undetectable.

[0261] Figures 4A to 4C illustrate scenarios where the detected target moves out of the transmit and / or receive coverage areas. The detected target is a drone, base station 1 provides transmit coverage, and base station 2 provides receive coverage. In the scenario shown in Figure 4A, the drone moves out of both the transmit and receive coverage areas, causing both base station 1 and base station 2 to fail to detect it. In the scenario shown in Figure 4B, the drone moves out of the receive coverage area but remains within the transmit coverage area, resulting in successful detection by base station 1 and failure by base station 2. In the scenario shown in Figure 4C, the drone moves out of the transmit coverage area but remains within the receive coverage area, again resulting in failure by base station 1 and successful detection by base station 2.

[0262] Additionally, in the scenario shown in Figure 4D, the drone is actually still transmitting and receiving within the coverage area, but the drone is blocked by buildings, so base station 1 and / or base station 2 cannot detect the drone, and base station 1 and / or base station 2 will also fail to detect it.

[0263] In this embodiment, the failure to detect a sensing target in the transmission coverage area and / or reception coverage area of ​​the second communication device includes at least one of the following: the sensing target cannot be detected within the coverage range of the transmission angle and / or reception angle of the second communication device; the sensing target cannot be detected within the distance coverage range of the second communication device; or, the sensing performance parameters of the sensing link corresponding to the first sensing link mode do not meet the sensing requirements for the sensing target; or, the failure to detect a sensing target in the transmission coverage area and / or reception coverage area of ​​the third communication device includes at least one of the following: the sensing target cannot be detected within the coverage range of the transmission angle and / or reception angle of the third communication device; the sensing target cannot be detected within the distance coverage range of the third communication device; or, the sensing performance parameters of the sensing link corresponding to the first sensing link mode do not meet the sensing requirements for the sensing target.

[0264] Regarding the failure to detect a sensing target within the coverage area of ​​the transmission angle and / or reception angle of the second / third communication device, combined with the above-mentioned modes 0 to 5, the following definitions of detection failure may be included:

[0265] Mode 0: The angle between the departure direction of the sensed target and the center line of the BS's field of view is greater than a given threshold and / or the angle between the arrival direction of the sensed target and the center line of the BS node's field of view is greater than a given threshold. This situation indicates that the BS cannot detect the sensed target within the coverage area of ​​the transmission angle by transmitting a sensed signal, and / or cannot detect the sensed target within the coverage area of ​​the reception angle by receiving an echo signal.

[0266] Mode 1: The angle between the departure direction of the sensed target and the center line of the UE's field of view is greater than a given threshold and / or the angle between the arrival direction of the sensed target and the center line of the UE's field of view is greater than a given threshold. This situation indicates that the UE cannot detect the sensed target within the coverage area of ​​the transmission angle by transmitting a sensed signal, and / or cannot detect the sensed target within the coverage area of ​​the reception angle by receiving an echo signal.

[0267] Mode 2: The angle between the departure direction of the sensed target and the center line of the BS1 field of view is greater than a given threshold and / or the angle between the arrival direction of the sensed target and the center line of the BS2 field of view is greater than a given threshold. This indicates that BS1 cannot detect the sensed target within the coverage area of ​​the transmission angle by transmitting a sensed signal, and / or BS2 cannot detect the sensed target within the coverage area of ​​the reception angle by receiving an echo signal.

[0268] Mode 3: The angle between the departure direction of the perceived target and the center line of the UE1 field of view is greater than a given threshold and / or the angle between the arrival direction of the perceived target and the center line of the UE2 field of view is greater than a given threshold. This situation indicates that UE1 cannot detect the perceived target within the coverage area of ​​the transmission angle by transmitting the sensing signal, and / or UE2 cannot detect the perceived target within the coverage area of ​​the reception angle by receiving the echo signal.

[0269] Mode 4: The angle between the departure direction of the perceived target and the center line of the BS's field of view is greater than a given threshold and / or the angle between the arrival direction of the perceived target and the center line of the UE's field of view is greater than a given threshold. This situation indicates that the BS cannot detect the perceived target within the coverage area of ​​the transmission angle by transmitting the sensing signal, and / or the UE cannot detect the perceived target within the coverage area of ​​the reception angle by receiving the echo signal.

[0270] Mode 5: The angle between the departure direction of the perceived target and the center line of the UE's field of view is greater than a given threshold and / or the angle between the arrival direction of the perceived target and the center line of the BS's field of view is greater than a given threshold. This situation indicates that the UE cannot detect the perceived target within the coverage area of ​​the transmission angle by transmitting the sensing signal, and / or the BS cannot detect the perceived target within the coverage area of ​​the reception angle by receiving the echo signal.

[0271] The field-of-view centerline and the included angle in the definitions of several detection failures related to the transmission angle and / or reception angle can be understood by referring to Figure 4E. As shown in Figure 4E, if the given threshold for the angle is set to θ, the angle between the departure direction of the sensed signal and the field-of-view centerline is represented by α. If α > θ, it indicates a detection failure.

[0272] In this application, the sensing performance parameters may include the signal-to-interference plus noise ratio (SINR), RSRP, resolution, or ambiguity. A failure of the sensing performance parameters to meet the sensing requirements for the target may be due to SINR being less than the corresponding threshold, RSRP being less than the corresponding threshold, or resolution or ambiguity not meeting the corresponding requirements.

[0273] This application provides various possible scenarios that could lead to detection failure, thereby improving the accuracy of target detection.

[0274] Optionally, if S307a is executed as described above, the communication method further includes S308a; if S307b is executed as described above, the communication method further includes S308b.

[0275] S308a. The second communication device sends a third sensing measurement report to the first communication device. Correspondingly, the first communication device receives the third sensing measurement report.

[0276] The third sensing measurement report may include a first mode failure indication, which is used to indicate that the first sensing link mode has failed.

[0277] S308b. The third communication device sends a fourth sensing measurement report to the first communication device. Correspondingly, the first communication device receives the fourth sensing measurement report.

[0278] The third sensing measurement report may include a second mode failure indication, which is used to indicate that the first sensing link mode has failed.

[0279] S309. The first communication device determines the second sensing link mode based on the third sensing measurement report and / or the fourth sensing measurement report, and switches from the first sensing link mode to the second sensing link mode.

[0280] The second sensing link mode corresponds to a transmitting end with a transmitting coverage range and a receiving end with a receiving coverage range that both cover the sensing target.

[0281] In this application, the fourth communication device may be the second or the third communication device, and the fifth communication device may be the second or the third communication device.

[0282] When switching from the first sensing link mode to the second sensing link mode, if no new communication equipment is added for sensing, the system can switch from bistatic sensing to monostatic sensing, using either the second or third communication equipment that can provide both transmission and reception coverage for sensing; alternatively, the roles of the second and third communication equipment can be interchanged, converting the original transmitter into a receiver and vice versa, while maintaining bistatic sensing. If a new communication equipment is added for sensing, it can be used for sensing.

[0283] Based on the foregoing description of the sensing link mode, this application can manage the sensing link. The sensing link management process provided in the embodiments of this application can be understood with reference to Figure 5.

[0284] As shown in Figure 5, the sensing link management includes sensing link measurement and reporting 501, sensing link mode selection 502, sensing link maintenance 503, and sensing link mode failure 504.

[0285] Among them, the sensing link measurement and reporting 501 refers to the process of measuring whether the sensing target is in the transmission coverage area and / or the reception coverage area, such as the second communication device reporting the first sensing measurement report and the third communication device reporting the third sensing measurement report.

[0286] The sensing link mode selection 502 refers to the process by which the first communication device determines the first sensing link mode, as in the process of S302 above. This sensing link mode selection process can be to select the first sensing link mode from the candidate pool. The candidate pool in Figure 5 shows 6 sensing link modes, where "black dot" represents BS and "white dot" represents UE. In the dual-base sensing link mode, the one at the top represents the transmitting end and the one at the bottom represents the receiving end.

[0287] The "Perception Link Maintenance 503" error means maintaining the currently used perception link mode, such as maintaining the first perception link mode.

[0288] A 504 error message indicates a failure in the detection of the first sensing link mode. For details on detection failures, please refer to Figures 4A to 4D. After a sensing link mode failure, sensing must either cease or the sensing link mode must be switched, such as from the first sensing link mode to the second sensing link mode.

[0289] As shown in Figure 6, the communication method provided in this application embodiment is introduced with the first communication device as the central node, SF and SMF network elements, the second communication device as the BS, the third communication device as the UE, and the sensing target as a moving target UAV.

[0290] As shown in Figure 6, the communication method provided in this application embodiment includes:

[0291] S601. The UE performs initial access and establishes a communication link with the central node / SF network element / SMF network element.

[0292] S602a. The central node / SF network element / SMF network element sends the first sensing measurement configuration to the BS. Correspondingly, the BS receives the first sensing measurement configuration.

[0293] The first sensing measurement configuration may include a sensing target for sensing measurement, which can be indicated by the sensing range, such as by two-dimensional or three-dimensional geographic coordinate information.

[0294] S602b. The central node / SF network element / SMF network element sends the second sensing measurement configuration to the UE. Correspondingly, the UE receives the second sensing measurement configuration.

[0295] The second sensing measurement configuration may also include a sensing target for sensing measurement, which can be indicated by the sensing range, such as by two-dimensional or three-dimensional geographic coordinate information.

[0296] S603a.BS sends the first sensing measurement report to the central node / SF network element / SMF network element. Correspondingly, the central node / SF network element / SMF network element receives the first sensing measurement report.

[0297] S603b. The UE sends a second sensing measurement report to the central node / SF network element / SMF network element. Correspondingly, the central node / SF network element / SMF network element receives the second sensing measurement report.

[0298] S604. The central node / SF network element / SMF network element determines the first sensing link mode based on the first sensing measurement report and the second sensing measurement report.

[0299] The first sensing link mode is used to instruct the BS and UE to sense the sensing target.

[0300] As shown in Figure 6, the transmitter of the first sensing link mode is the UE, and the receiver is the BS, which is the mode5 introduced earlier.

[0301] S605a. The central node / SF network element / SMF network element sends the first mode information to the BS. Correspondingly, the BS receives the first mode information.

[0302] The first mode information can indicate mode5.

[0303] S605b. The central node / SF network element / SMF network element sends the second mode information to the UE. Correspondingly, the UE receives the second mode information.

[0304] The second mode information can indicate mode 5.

[0305] S606a. The central node / SF network element / SMF network element sends the first mode measurement configuration information to the BS. Correspondingly, the BS receives the first mode measurement configuration information.

[0306] S606b. The central node / SF network element / SMF network element sends the second-mode measurement configuration information to the UE. Correspondingly, the UE receives the second-mode measurement configuration information.

[0307] S607.UE sends sensing signals.

[0308] This sensing signal is used to sense the target (drone). Simultaneously, the UE also detects the target based on the mode measurement configuration information to confirm whether the target is still within the transmission coverage area.

[0309] S608.BS receives echo signals.

[0310] The echo signal is used to sense drones. Simultaneously, the BS also detects the sensed target based on the pattern measurement configuration information to confirm whether the target is still within the receiving coverage area.

[0311] S609a.BS transmits a third-party sensing measurement report to the central node / SF network element / SMF network element. Correspondingly, the central node / SF network element / SMF network element receives the third-party sensing measurement report.

[0312] S609b. The UE transmits the fourth sensing measurement report to the central node / SF network element / SMF network element. Correspondingly, the central node / SF network element / SMF network element receives the fourth sensing measurement report.

[0313] S610. The central node / SF network element / SMF network element determines the second sensing link mode based on the third sensing measurement report and the fourth sensing measurement report, and switches from the first sensing link mode to the second sensing link mode.

[0314] The target shown in Figure 6 is a drone. The drone has moved and moved out of the UE's transmission coverage area, so the first sensing link mode can no longer meet the sensing requirements.

[0315] In the scenario shown in Figure 6, the second sensing link mode is a single-base sensing mode that provides transmit and receive coverage for the BS, namely mode0 as described above.

[0316] S611. The central node / SF network element / SMF network element sends third-mode information to the BS. Correspondingly, the BS receives the third-mode information.

[0317] The third mode information can indicate mode0.

[0318] The S612.BS transmits sensing signals and receives echo signals to sense the target.

[0319] It should be noted that the perception process shown in Figure 6 may also include S305a, S305b, S306a, and S305b from Figure 3. Furthermore, after S612, the processes S609a and S610 can be repeated until the perception process ends. If repeated detection is not required, the processes S606a and S606b, as well as S609a and S610, can be omitted.

[0320] In the sensing scheme described in Figure 6 above, the central node / SF network element / SMF network element can determine the first sensing link mode based on the first sensing measurement report and / or the second sensing measurement report. In this way, in the first sensing link mode, the sensed target will be located in the transmission coverage area of ​​the transmitter and the reception coverage area of ​​the receiver in the corresponding first sensing link mode. Compared to blindly configuring the transmitter or receiver of the sensed target, this reduces the sensing failure rate, increases the sensing success rate, and improves the sensing quality.

[0321] As shown in Figure 7, the communication method provided in this application embodiment is introduced with the first communication device as the central node, SF and SMF network elements, the second communication device as the UE, and the sensing target as a stationary target (building).

[0322] As shown in Figure 7, the communication method provided in this application embodiment includes:

[0323] S701. The UE performs initial access and establishes a communication link with the central node / SF network element / SMF network element.

[0324] S702. The central node / SF network element / SMF network element sends the first sensing measurement configuration to the UE. Correspondingly, the UE receives the first sensing measurement configuration.

[0325] S703. The UE sends the first perception measurement report to the central node / SF network element / SMF network element. Correspondingly, the central node / SF network element / SMF network element receives the first perception measurement report.

[0326] S704. The central node / SF network element / SMF network element determines the first sensing link mode based on the first sensing measurement report.

[0327] As shown in Figure 7, the transmitter and receiver of the first sensing link mode are both UEs, which is the mode1 mentioned earlier.

[0328] S705. The central node / SF network element / SMF network element sends the first mode information to the UE. Correspondingly, the UE receives the first mode information.

[0329] The first mode information can indicate mode1.

[0330] S706. The central node / SF network element / SMF network element sends mode measurement configuration information to the UE. Correspondingly, the UE receives the mode measurement configuration information.

[0331] S707.UE transmits sensing signals and receives echo signals to sense the target.

[0332] This sensing signal is used to sense the target (building). Simultaneously, the UE also detects the target based on the mode measurement configuration information to confirm whether the target is still within the transmission coverage area.

[0333] The echo signal is used to sense buildings. Simultaneously, the UE also detects the sensed target based on the mode measurement configuration information to confirm whether the target is still within the coverage area.

[0334] Because the UE can move, its transmit and receive coverage areas may not be able to cover buildings as the UE moves, resulting in detection failure.

[0335] For an understanding of the switching of the perception link mode after detection failure, please refer to the corresponding descriptions in Figure 3 or Figure 6.

[0336] As shown in Figure 8, the communication method provided in this application embodiment is introduced with the first communication device as the first BS, which integrates the functions of the central node, SF, and SMF network elements, and the second communication device as the second BS, and the sensing target as a stationary target (building).

[0337] As shown in Figure 8, the communication method provided in this application embodiment includes:

[0338] S801. The first BS sends the first sensing measurement configuration to the second BS. Correspondingly, the second BS receives the first sensing measurement configuration.

[0339] S802. The second BS sends a first sensing measurement report to the first BS. Correspondingly, the first BS receives the first sensing measurement report.

[0340] S803. The first BS obtains the second sensing measurement report.

[0341] The second perception measurement report is determined by the first BS based on its own measurements of the building.

[0342] S804. The first BS determines the first sensing link mode based on the first sensing measurement report and the second sensing measurement report.

[0343] S805. The first BS sends first mode information to the second BS. Correspondingly, the second BS receives the first mode information.

[0344] S806. The first BS sends mode measurement configuration information to the second BS. Correspondingly, the second BS receives the mode measurement configuration information.

[0345] S807. The second BS sends a sensing signal to sense the building.

[0346] This sensing signal is used to sense the target (building). Simultaneously, the second BS also detects the target based on pattern measurement configuration information to confirm whether the target is still within the transmission coverage area.

[0347] S808. The first BS receives echo signals to sense buildings.

[0348] The echo signal is used to sense buildings. Simultaneously, the first BS also detects the sensed target based on mode measurement configuration information to confirm whether the target is still within the receiving coverage area.

[0349] Alternatively, the above S806 can be omitted.

[0350] For an understanding of the switching of the perception link mode after detection failure, please refer to the corresponding descriptions in Figure 3 or Figure 6.

[0351] Figures 6 to 8 above illustrate several examples of perception scenarios. In fact, there can be many types of perception scenarios. The perception in different scenarios can be understood by referring to the previous perception process. They will not be described in detail in this application.

[0352] The communication system and communication method in the embodiments of this application have been described above. The communication device provided in the embodiments of this application will be described below.

[0353] Please refer to Figure 9. This application embodiment provides a communication device 900, which can realize the functions of the first or second communication device in the above method embodiments, and therefore can also achieve the beneficial effects of the above method embodiments. In this application embodiment, the communication device 900 can be a first or second communication device, or it can be an integrated circuit or component inside the first or second communication device, such as a chip, baseband chip, modem chip, SoC chip (e.g., an SoC chip containing a modem core), SIP chip, communication module, chip system, processor, etc.

[0354] It should be noted that the transceiver unit 902 may include a transmitting unit and a receiving unit, which are used to perform transmitting and receiving respectively.

[0355] In one possible implementation, when the device 900 is used to execute the method performed by the first communication device in FIG2 and related embodiments, the device 900 includes a processing unit 901 and a transceiver unit 902; the processing unit 901 is used to acquire a first perception measurement report and / or a second perception measurement report, and determine a first perception link mode based on the first perception measurement report and / or the second perception measurement report; wherein the first perception link mode is used to instruct the second communication device and / or the third communication device to perceive the perception target. Alternatively, when the device 900 is used to execute FIG3, the transceiver unit 902 is used to receive a first perception measurement report from the second communication device, and / or receive a second perception measurement report from the third communication device; and send first mode information to the second communication device and / or the third communication device, the first mode information being used to indicate the first perception link mode.

[0356] In one possible implementation, when the device 900 is used to execute the method performed by the second communication device in FIG3 and related embodiments, the device 900 includes a processing unit 901 and a transceiver unit 902; the transceiver unit 902 is used to send a first sensing measurement report and receive first mode information sent by the first communication device, the first mode information being used to indicate a first sensing link mode. The processing unit 901 is used to sense the sensing target according to the first sensing link mode.

[0357] In one possible design, when the communication device 900 is a terminal device or a communication module within a terminal, the function of the processing unit 901 can be implemented by one or more processors. Specifically, the processor may include a modem chip, a SoC chip (such as a SoC chip containing a modem core), or a SIP chip. The function of the transceiver unit 902 can be implemented by transceiver circuitry.

[0358] In one possible design, when the communication device 900 is a circuit or chip responsible for communication functions in a terminal device, such as a modem chip, a SoC chip, or a SoC chip or SIP chip containing a modem core, the function of the processing unit 901 can be implemented by a circuit system in the aforementioned chip that includes one or more processors or processor cores. The function of the transceiver unit 902 can be implemented by the interface circuitry or data transceiver circuitry on the aforementioned chip.

[0359] It should be noted that the information execution process of the unit of the above-mentioned communication device 900 can be specifically described in the method embodiment shown above in this application, and will not be repeated here.

[0360] Please refer to Figure 10, which is another schematic structural diagram of the communication device 1000 provided in this application. The communication device 1000 includes a logic circuit 1001 and an input / output interface 1002. The communication device 1000 can be a chip or an integrated circuit.

[0361] In Figure 9, the transceiver unit 902 can be a communication interface, which can be the input / output interface 1002 in Figure 10. The input / output interface 1002 can include an input interface and an output interface. Alternatively, the communication interface can also be a transceiver circuit, which can include an input interface circuit and an output interface circuit.

[0362] In one possible implementation, when the device 1000 is used to execute the method performed by the first communication device in FIG2 and related embodiments, the logic circuit 1001 is used to acquire a first perception measurement report and / or a second perception measurement report, and determine a first perception link mode based on the first perception measurement report and / or the second perception measurement report; wherein, the first perception link mode is used to instruct the second communication device and / or the third communication device to perceive the perception target; or, when the device 1000 is used to execute FIG3, the input / output interface 1002 is used to receive the first perception measurement report from the second communication device, and / or receive the second perception measurement report from the third communication device; and send first mode information to the second communication device and / or the third communication device, the first mode information being used to indicate the first perception link mode.

[0363] In one possible implementation, when the device 1000 is used to execute the method performed by the second communication device in FIG3 and related embodiments, the input / output interface 1002 is used to send a first sensing measurement report; receive first mode information sent by the first communication device, the first mode information being used to indicate a first sensing link mode; and the logic circuit 1001 is used to sense the sensing target according to the first sensing link mode.

[0364] The logic circuit 1001 and the input / output interface 1002 can also perform other steps performed by the first or second communication device in any embodiment and achieve corresponding beneficial effects, which will not be elaborated here.

[0365] In one possible implementation, the processing unit 901 shown in FIG9 can be the logic circuit 1001 in FIG10.

[0366] Optionally, the logic circuit 1001 can be a processing device, the functions of which can be partially or entirely implemented in software.

[0367] Optionally, the processing apparatus may include a memory and a processor, wherein the memory is used to store a computer program, and the processor reads and executes the computer program stored in the memory to perform the corresponding processing and / or steps in any of the method embodiments.

[0368] Optionally, the processing device may consist of only a processor. A memory for storing computer programs is located outside the processing device, and the processor is connected to the memory via circuitry / wires to read and execute the computer programs stored in the memory. The memory and processor may be integrated together or physically independent of each other.

[0369] Optionally, the processing device may be one or more chips, or one or more integrated circuits. For example, the processing device may be one or more field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), system-on-chips (SoCs), central processing units (CPUs), network processors (NPs), digital signal processors (DSPs), microcontroller units (MCUs), programmable logic controllers (PLDs), or other integrated chips, or any combination of the above chips or processors.

[0370] Please refer to Figure 11, which shows the communication device 1100 involved in the above embodiments provided in the embodiments of this application. Specifically, the communication device 1100 can be the communication device as a terminal device in the above embodiments. The example shown in Figure 11 is that the terminal device is implemented through the terminal device (or the components in the terminal device).

[0371] The present invention provides a possible logical structure diagram of the communication device 1100, which may include, but is not limited to, at least one processor 1101 and a communication port 1102.

[0372] In Figure 9, the transceiver unit 902 can be a communication interface, which can be the communication port 1102 in Figure 11. The communication port 1102 can include an input interface and an output interface. Alternatively, the communication port 1102 can also be a transceiver circuit, which can include an input interface circuit and an output interface circuit.

[0373] Further optionally, the device may also include at least one of a memory 1103 and a bus 1104. In the embodiments of this application, the at least one processor 1101 is used to control the operation of the communication device 1100.

[0374] Furthermore, the processor 1101 can be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, etc. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0375] It should be noted that the communication device 1100 shown in Figure 11 can be used to implement the steps implemented by the terminal device in the aforementioned method embodiment and achieve the corresponding technical effects of the terminal device. The specific implementation of the terminal device shown in Figure 11 can be referred to the description of the first communication device or the second communication device in the aforementioned method embodiment, and will not be repeated here.

[0376] Please refer to Figure 12, which is a schematic diagram of the structure of the communication device 1200 involved in the above embodiments provided in the embodiments of this application. The communication device 1200 can specifically be a communication device as a network device in the above embodiments. The example shown in Figure 12 is that the network device is implemented through a network device (or a component in the network device). The structure of the communication device can refer to the structure shown in Figure 12.

[0377] The communication device 1200 includes at least one processor 1211 and at least one network interface 1214. Optionally, the communication device further includes at least one memory 1212, at least one transceiver 1213, and one or more antennas 1215. The processor 1211, memory 1212, transceiver 1213, and network interface 1214 are connected, for example, via a bus. In this embodiment, the connection may include various interfaces, transmission lines, or buses, etc., and this embodiment is not limited thereto. The antenna 1215 is connected to the transceiver 1213. The network interface 1214 enables the communication device to communicate with other communication devices through a communication link. For example, the network interface 1214 may include a network interface between the communication device and core network equipment, such as an S1 interface; the network interface may also include a network interface between the communication device and other communication devices (e.g., other network devices or core network equipment), such as an X2 or Xn interface.

[0378] In Figure 9, the transceiver unit 902 can be a communication interface, which can be the network interface 1214 in Figure 12. The network interface 1214 can include an input interface and an output interface. Alternatively, the network interface 1214 can also be a transceiver circuit, which can include an input interface circuit and an output interface circuit.

[0379] The processor 1211 is primarily used to process communication protocols and communication data, control the entire communication device, execute software programs, and process data from these programs, for example, to support the actions described in the embodiments of the communication device. The communication device may include a baseband processor and a central processing unit (CPU). The baseband processor is primarily used to process communication protocols and communication data, while the CPU is primarily used to control the entire terminal device, execute software programs, and process data from these programs. The processor 1211 in Figure 12 can integrate the functions of both a baseband processor and a CPU. Those skilled in the art will understand that the baseband processor and CPU can also be independent processors interconnected via technologies such as buses. Those skilled in the art will understand that a terminal device may include multiple baseband processors to adapt to different network standards, and multiple CPUs to enhance its processing capabilities. Various components of the terminal device can be connected via various buses. The baseband processor can also be described as a baseband processing circuit or a baseband processing chip. The CPU can also be described as a central processing circuit or a central processing chip. The function of processing communication protocols and communication data can be built into the processor or stored in memory as a software program, which is then executed by the processor to implement the baseband processing function.

[0380] The memory is primarily used to store software programs and data. The memory 1212 can exist independently or be connected to the processor 1211. Optionally, the memory 1212 can be integrated with the processor 1211, for example, integrated within a single chip. The memory 1212 can store program code that executes the technical solutions of the embodiments of this application, and its execution is controlled by the processor 1211. The various types of computer program code being executed can also be considered as drivers for the processor 1211.

[0381] Figure 12 shows only one memory and one processor. In actual terminal devices, there may be multiple processors and multiple memories. Memory can also be called storage medium or storage device, etc. Memory can be a storage element on the same chip as the processor, i.e., an on-chip storage element, or it can be a separate storage element; this application does not limit this.

[0382] Transceiver 1213 can be used to support the reception or transmission of radio frequency signals between a communication device and a terminal. Transceiver 1213 can be connected to antenna 1215. Transceiver 1213 includes a transmitter Tx and a receiver Rx. Specifically, one or more antennas 1215 can receive radio frequency signals. The receiver Rx of transceiver 1213 is used to receive the radio frequency signals from the antennas, convert the radio frequency signals into digital baseband signals or digital intermediate frequency signals, and provide the digital baseband signals or digital intermediate frequency signals to processor 1211 so that processor 1211 can perform further processing on the digital baseband signals or digital intermediate frequency signals, such as demodulation and decoding. In addition, the transmitter Tx in transceiver 1213 is also used to receive the modulated digital baseband signals or digital intermediate frequency signals from processor 1211, convert the modulated digital baseband signals or digital intermediate frequency signals into radio frequency signals, and transmit the radio frequency signals through one or more antennas 1215. Specifically, the receiver Rx can selectively perform one or more stages of downmixing and analog-to-digital conversion on the radio frequency signal to obtain a digital baseband signal or a digital intermediate frequency (IF) signal. The order of these downmixing and IF conversion processes is adjustable. The transmitter Tx can selectively perform one or more stages of upmixing and digital-to-analog conversion on the modulated digital baseband signal or digital IF signal to obtain a radio frequency signal. The order of these upmixing and IF conversion processes is also adjustable. The digital baseband signal and the digital IF signal can be collectively referred to as digital signals.

[0383] The transceiver 1213 can also be called a transceiver unit, transceiver, transceiver device, etc. Optionally, the device in the transceiver unit that performs the receiving function can be regarded as the receiving unit, and the device in the transceiver unit that performs the transmitting function can be regarded as the transmitting unit. That is, the transceiver unit includes a receiving unit and a transmitting unit. The receiving unit can also be called a receiver, input port, receiving circuit, etc., and the transmitting unit can be called a transmitter, transmitter, or transmitting circuit, etc.

[0384] It should be noted that the communication device 1200 shown in Figure 12 can be used to implement the steps implemented by the network device in the aforementioned method embodiment and achieve the corresponding technical effects of the network device. The specific implementation of the communication device 1200 shown in Figure 12 can be referred to the description of the first communication device or the second communication device in the aforementioned method embodiment, and will not be repeated here.

[0385] Please refer to Figure 13, which is a schematic diagram of the structure of the communication device involved in the above embodiments provided in the embodiments of this application.

[0386] It is understood that the communication device 1300 includes, for example, modules, units, elements, circuits, or interfaces, which are appropriately configured together to execute the technical solutions provided in this application. The communication device 1300 may be the terminal device or network device described above, or a component (e.g., a chip) within these devices, used to implement the methods described in the following method embodiments. The communication device 1300 includes one or more processors 1301. The processor 1301 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (e.g., RAN node, terminal, or chip), execute software programs, and process data from the software programs.

[0387] Optionally, in one design, processor 1301 may include program 1303 (sometimes also referred to as code or instructions), which may be executed on processor 1301 to cause communication device 1300 to perform the methods described in the embodiments below. In yet another possible design, communication device 1300 includes circuitry (not shown in FIG13).

[0388] Optionally, the communication device 1300 may include one or more memories 1302 storing a program 1304 (sometimes referred to as code or instructions), which can be run on the processor 1301 to cause the communication device 1300 to perform the methods described in the above method embodiments.

[0389] Optionally, the processor 1301 and / or memory 1302 may include AI modules 1307 and 1308, which are used to implement AI-related functions. The AI ​​modules can be implemented through software, hardware, or a combination of both. For example, the AI ​​module may include a radio intelligence control (RIC) module. For example, the AI ​​module may be a near real-time RIC or a non-real-time RIC.

[0390] Optionally, the processor 1301 and / or memory 1302 may include sensing modules 1309 and 1310, which are used to implement communication or sensing-related functions. The sensing modules may be implemented through software, hardware, or a combination of both.

[0391] Optionally, the AI ​​module and the synesthesia module mentioned above can be separate modules or composite modules, and this application does not limit them in this regard.

[0392] Optionally, the processor 1301 and / or memory 1302 may also store data. The processor and memory may be configured separately or integrated together.

[0393] Optionally, the communication device 1300 may further include a transceiver 1305 and / or an antenna 1306. The processor 1301, sometimes referred to as a processing unit, controls the communication device (e.g., a RAN node or terminal). The transceiver 1305, sometimes referred to as a transceiver unit, transceiver, transceiver circuit, or transceiver, is used to realize the transmission and reception functions of the communication device through the antenna 1306.

[0394] In Figure 9, the processing unit 901 can be a processor 1301. The transceiver unit 902 shown in Figure 9 can be a communication interface, which can be the transceiver 1305 in Figure 13. The transceiver 1305 can include an input interface and an output interface. Alternatively, the transceiver 1305 can also be a transceiver circuit, which can include an input interface circuit and an output interface circuit.

[0395] This application also provides a computer-readable storage medium for storing one or more computer-executable instructions. When the computer-executable instructions are executed by a processor, the processor performs the method described in the possible implementations of the first or second communication device in the foregoing embodiments.

[0396] This application also provides a computer program product (or computer program) that, when executed by a processor, executes the method described above for the possible implementation of the first or second communication device.

[0397] This application also provides a chip system including at least one processor for supporting a communication device in implementing the functions involved in the possible implementations of the communication device described above. Optionally, the chip system further includes an interface circuit that provides program instructions and / or data to the at least one processor. In one possible design, the chip system may further include a memory for storing the program instructions and data necessary for the communication device. The chip system may be composed of chips or may include chips and other discrete devices, wherein the communication device may specifically be the first communication device or the second communication device in the aforementioned method embodiments.

[0398] This application also provides a communication system, which includes the first communication device in any of the above embodiments.

[0399] Optionally, the communication system may also include a second communication device.

[0400] In the embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, indirect coupling or communication connection between devices or units, and may be electrical, mechanical, or other forms. Whether a function is implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0401] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0402] 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. 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 computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

Claims

1. A sensing method, characterized in that, The method is applied to a first communication device or a device within the first communication device, and the method includes: Obtain a first sensing measurement report and / or a second sensing measurement report; wherein the first sensing measurement report is used to indicate that the sensing target is located in the transmission coverage area and / or reception coverage area of ​​the second communication device, and the second sensing measurement report is used to indicate that the sensing target is located in the reception coverage area and / or transmission coverage area of ​​the third communication device; Based on the first perception measurement report and / or the second perception measurement report, a first perception link mode is determined; wherein, the first perception link mode is used to instruct the second communication device and / or the third communication device to perceive the perception target.

2. The method according to claim 1, characterized in that, The acquisition of the first perception measurement report and / or the second perception measurement report includes: Receive the first perception measurement report from the second communication device, and / or receive the second perception measurement report from the third communication device; The method further includes: Sending first mode information to the second communication device and / or sending second mode information to the third communication device, wherein the first mode information and / or the second mode information are used to indicate the first sensing link mode.

3. The method according to claim 1 or 2, characterized in that, The first sensing measurement report includes first indication information and / or second indication information for indicating a sensing trigger event; wherein the first indication information is used to indicate a sensing trigger event where the sensing target is located within the transmission coverage area of ​​the second communication device, and the second indication information is used to indicate a sensing trigger event where the sensing target is located within the reception coverage area of ​​the second communication device; or... The second sensing measurement report includes third and / or fourth indication information for indicating a sensing trigger event; wherein the third indication information is used to indicate a sensing trigger event in which the sensing target is located in the transmission coverage area of ​​the third communication device, and the fourth indication information is used to indicate a sensing trigger event in which the sensing target is located in the reception coverage area of ​​the third communication device.

4. The method according to claim 3, characterized in that, The second communication device is a first network device, and the third communication device is a second network device or a terminal device. The step of determining the first sensing link mode based on the first sensing measurement report and / or the second sensing measurement report includes: The first sensing link mode corresponding to the first indication information and the second indication information is determined from the correspondence between the sensing trigger event and the sensing link mode. The first sensing link mode is the sensing link mode in which the first network device acts as both the transmitter and receiver; or, The first sensing link mode corresponding to the first indication information and the fourth indication information is determined from the correspondence between the sensing trigger event and the sensing link mode. The first sensing link mode is a sensing link mode in which the first network device acts as the transmitter and the second network device or the terminal device acts as the receiver.

5. The method according to claim 4, characterized in that, The correspondence between the perception trigger events and the perception link modes includes:

6. The method according to claim 3, characterized in that, The third communication device is the first terminal device, and the second communication device is either the second terminal device or a network device. The step of determining the first sensing link mode based on the first sensing measurement report and / or the second sensing measurement report includes: The first sensing link mode corresponding to the third indication information and the fourth indication information is determined from the correspondence between the sensing trigger event and the sensing link mode. The first sensing link mode is the sensing link mode in which the first terminal device acts as both the transmitter and receiver; or, The first sensing link mode corresponding to the third indication information and the second indication information is determined from the correspondence between the sensing trigger event and the sensing link mode. The first sensing link mode is a sensing link mode in which the first terminal device acts as the transmitter and the second terminal device or the network device acts as the receiver.

7. The method according to claim 6, characterized in that, The correspondence between the perception trigger events and the perception link modes includes:

8. The method according to claim 1 or 2, characterized in that, The first sensing measurement report includes fifth indication information for indicating a sensing trigger event; wherein the fifth indication information is used to indicate a sensing trigger event where the sensing target is located within the transmission coverage area of ​​the second communication device and / or a sensing trigger event within the reception coverage area of ​​the second communication device; or, The second sensing measurement report includes a sixth indication information for indicating a sensing trigger event; wherein, the sixth indication information is used to indicate a sensing trigger event where the sensing target is located in the transmission coverage area of ​​the third communication device and / or a sensing trigger event in the reception coverage area of ​​the third communication device.

9. The method according to any one of claims 1-8, characterized in that, The method further includes: Sending first mode measurement configuration information to the second communication device and / or sending second mode measurement configuration information to the third communication device; wherein, the first mode measurement configuration information is used to instruct the second communication device whether the first sensing link mode has failed; wherein, the failure of the first sensing link mode is used to indicate the failure of detection of the sensing target in the transmission coverage area and / or reception coverage area of ​​the second communication device; or, the second mode measurement configuration information is used to instruct the third communication device whether the first sensing link mode has failed, wherein, the failure of the first sensing link mode is used to indicate the failure of detection of the sensing target in the transmission coverage area and / or reception coverage area of ​​the third communication device.

10. The method according to claim 9, characterized in that, The failure to detect the sensed target in the transmission coverage area and / or reception coverage area of ​​the second communication device includes at least one of the following: The target cannot be detected within the coverage area of ​​the transmission angle and / or reception angle of the second communication device; the target cannot be detected within the distance coverage area of ​​the second communication device; or, the sensing performance parameters of the sensing link corresponding to the first sensing link mode do not meet the sensing requirements for the target; or... The failure to detect the sensing target in the transmission and / or reception coverage area of ​​the third communication device includes at least one of the following: The target cannot be detected within the coverage area of ​​the transmission angle and / or reception angle of the third communication device; the target cannot be detected within the distance coverage area of ​​the third communication device; or, the sensing performance parameters of the sensing link corresponding to the first sensing link mode do not meet the sensing requirements for the target.

11. The method according to claim 9 or 10, characterized in that, The method further includes: Receive a first mode failure indication from the second communication device and / or receive a second mode failure indication from the third communication device, wherein the first mode failure indication and / or the second mode failure indication are used to indicate that the first sensing link mode has failed; Based on the first mode failure indication and / or the second mode failure indication, the system switches from the first sensing link mode to the second sensing link mode, wherein the transmission coverage of the transmitter and the reception coverage of the receiver corresponding to the second sensing link mode both cover the sensing target.

12. The method according to claim 11, characterized in that, The second sensing link mode is determined based on a third sensing measurement report and / or a fourth sensing measurement report. The third sensing measurement report indicates that the sensing target is located in the transmission coverage area and / or reception coverage area of ​​a fourth communication device, and the fourth sensing measurement report indicates that the sensing target is located in the reception coverage area and / or transmission coverage area of ​​a fifth communication device.

13. A sensing method, characterized in that, The method is applied to a second communication device or a device within the second communication device, and the method includes: A first sensing link mode is obtained, which is determined based on a first sensing measurement report; wherein the first sensing measurement report is used to indicate that the sensing target is located in the transmission coverage area and / or reception coverage area of ​​the second communication device; The target is perceived according to the first perception link mode.

14. The method according to claim 13, characterized in that, The method further includes: Send the first sensing measurement report to the first communication device; The acquisition of the first sensing link mode includes: Receive first mode information sent by the first communication device, the first mode information being used to indicate the first sensing link mode.

15. The method according to claim 13 or 14, characterized in that, The first sensing measurement report includes first indication information and / or second indication information for indicating a sensing trigger event; wherein, the first indication information is used to indicate a sensing trigger event in which the sensing target is located in the transmission coverage area of ​​the second communication device, and the second indication information is used to indicate a sensing trigger event in which the sensing target is located in the reception coverage area of ​​the second communication device.

16. The method according to claim 13 or 14, characterized in that, The first sensing measurement report includes fifth indication information for indicating sensing trigger events; wherein the fifth indication information is used to indicate sensing trigger events where the sensing target is located in the transmission coverage area of ​​the second communication device and / or sensing trigger events in the reception coverage area of ​​the second communication device.

17. The method according to any one of claims 13-16, characterized in that, The method further includes: Receive first mode measurement configuration information from the first communication device; The first sensing link mode is measured to determine whether it has failed based on the first mode measurement configuration information; wherein, the failure of the first sensing link mode is used to indicate the failure of detection of the sensing target in the transmission coverage area and / or reception coverage area of ​​the second communication device.

18. The method according to claim 17, characterized in that, Detection failure in the transmission and / or reception coverage areas of the second communication device includes at least one of the following: The target cannot be detected within the coverage area of ​​the transmission angle and / or reception angle of the second communication device; the target cannot be detected within the distance coverage area of ​​the second communication device; or, the sensing performance parameters of the sensing link corresponding to the first sensing link mode do not meet the sensing requirements for the target.

19. The method according to claim 17 or 18, characterized in that, The method further includes: Send a mode failure indication to the first communication device, the mode failure indication being used to indicate that the first sensing link mode has failed.

20. A communication device, characterized in that, It includes a module for performing the method as described in any one of claims 1 to 12, or includes a module for performing the method as described in any one of claims 13 to 19.

21. A communication device, characterized in that, It includes at least one processor, said at least one processor being configured to perform the method as described in any one of claims 1 to 12, or said at least one processor being configured to perform the method as described in any one of claims 13 to 19.

22. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program or instructions that, when executed by a communication device, implement the method as described in any one of claims 1 to 12, or the method as described in any one of claims 13 to 19.

23. A computer program product, characterized in that, It includes a computer program or instructions that, when executed by a computer, implement the method as described in any one of claims 1 to 12, or implement the method as described in any one of claims 13 to 19.

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