Method and device for transmitting perception reference signal, equipment and storage medium

Abstract

The invention provides a method and device for transmitting a sensing reference signal, equipment and a storage medium. The method for transmitting the perception reference signal is executed by a first node and comprises the following steps: determining transmission power adjustment information; adjusting the transmitting power according to the transmitting power adjustment information; and sending the sensing reference signal according to the adjusted transmitting power. According to the method for transmitting the sensing reference signal, when the sensing reference signal is transmitted in different types of modes, more reasonable transmitting power is used, so that the transmission efficiency and the transmission effectiveness are improved.

Description

Method, apparatus, device and storage medium for transmitting sensing reference signal TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and particularly relates to a method, apparatus, device and storage medium for transmitting sensing reference signal. BACKGROUND

[0002] Integrated sensing and communication (ISAC) technology is a new type of communication technology, which can integrate sensing capability into a communication system, so that the communication system can provide sensing as a service together with communication to users. The ISAC technology can be applied in various communication scenarios and improved versions thereof, for example, in the 5th generation mobile communication technology (5G) or the 6th generation mobile communication technology (6G). Among them, two types of modes can be included, the first type is mono-static, in which the same node transmits and receives sensing reference signals, and the second type is bi-static, in which different nodes transmit and receive sensing reference signals.

[0003] SUMMARY

[0004] How to better transmit sensing reference signals in different modes is a problem to be solved, so it is necessary to provide a new method for transmitting sensing reference signals to adapt to different types of modes.

[0005] Embodiments of the present disclosure provide a method, apparatus, device and storage medium for transmitting sensing reference signals.

[0006] In a first aspect, embodiments of the present disclosure provide a method for transmitting sensing reference signals, executed by a first node, comprising:

[0007] determining transmission power adjustment information;

[0008] adjusting the transmission power according to the transmission power adjustment information;

[0009] transmitting the sensing reference signals according to the adjusted transmission power.

[0010] In a second aspect, embodiments of the present disclosure provide a method for receiving sensing reference signals, executed by a second node, comprising:

[0011] receiving the sensing reference signals;

[0012] measure one or more path received powers of the perception reference signal, the one or more paths including at least one path reflected by the perceived target SO.

[0013] In a third aspect, the embodiments of the present disclosure provide a method for transmitting and receiving a perception reference signal, implemented by a third node, comprising:

[0014] receiving a perception reference signal;

[0015] measuring one or more path received powers of the perception reference signal, the one or more paths including at least one path reflected by the perceived target SO;

[0016] determining transmission power adjustment information;

[0017] adjusting transmission power according to the transmission power adjustment information;

[0018] transmitting a perception reference signal according to the adjusted transmission power.

[0019] In a fourth aspect, the embodiments of the present disclosure provide a management method, implemented by a perception function entity, comprising:

[0020] transmitting a transmission power adjustment command to a first node or a third node, wherein the transmission power adjustment command is used for the first node to adjust transmission power for transmitting a perception reference signal.

[0021] In a fifth aspect, the embodiments of the present disclosure provide a first node, comprising:

[0022] a processing module configured to determine transmission power adjustment information and adjust transmission power according to the transmission power adjustment information;

[0023] a transceiver configured to transmit a first perception reference signal according to the adjusted transmission power.

[0024] In a sixth aspect, the embodiments of the present disclosure provide a second node, comprising:

[0025] a transceiver configured to receive a perception reference signal;

[0026] a processing module configured to measure one or more path received powers of the perception reference signal, the one or more paths including at least one path reflected by the perceived target SO.

[0027] In a seventh aspect, the embodiments of the present disclosure provide a third node, comprising:

[0028] The processing module is configured to determine transmit power adjustment information, and to adjust transmit power according to the transmit power adjustment information, and to measure one or more path received powers of the sensing reference signal, the one or more paths including at least one path reflected by the sensed target SO.

[0029] The transceiving module is configured to receive the sensing reference signal, and to transmit the sensing reference signal to the measured target SO according to the adjusted transmit power.

[0030] In an eighth aspect, an embodiment of the present disclosure provides a sensing function entity SF, comprising:

[0031] The transceiving module is configured to transmit a transmit power adjustment command to the first node or the third node, wherein the transmit power adjustment command is used for the first node to adjust transmit power for transmitting the sensing reference signal.

[0032] In a ninth aspect, an embodiment of the present disclosure provides a first node, comprising:

[0033] one or more processors;

[0034] The first node is configured to implement the method of the first aspect.

[0035] In a tenth aspect, an embodiment of the present disclosure provides a second node, comprising:

[0036] one or more processors;

[0037] The first node is configured to implement the method of the second aspect.

[0038] In an eleventh aspect, an embodiment of the present disclosure provides a third node, comprising:

[0039] one or more processors;

[0040] The first node is configured to implement the method of the third aspect.

[0041] In a twelfth aspect, an embodiment of the present disclosure provides a sensing function entity, comprising:

[0042] one or more processors;

[0043] The first node is configured to implement the method of the fourth aspect.

[0044] In a thirteenth aspect, an embodiment of the present disclosure provides a communication system, comprising a terminal and a network device, wherein:

[0045] The terminal comprises the first node, and the network device comprises the second node.

[0046] Alternatively, the terminal comprises the second node, and the network device comprises the first node.

[0047] Alternatively, the terminal comprises the third node.

[0048] Alternatively, the network device comprises the third node.

[0049] In a fourteenth aspect, an embodiment of the present disclosure provides a storage medium, the storage medium storing instructions, wherein,

[0050] When the instructions run on the communication device, the communication device is caused to perform the method according to any one of the first aspect to the fourth aspect.

[0051] In a fifteenth aspect, an embodiment of the present disclosure provides a program product, wherein,

[0052] When the program product is executed by the communication device, the communication device is caused to perform the method according to any one of the first aspect to the fourth aspect.

[0053] In the embodiment of the present disclosure, when the perception reference signal is transmitted in different types of modes, more reasonable transmission power is used, so that the transmission efficiency and transmission effectiveness are improved. BRIEF DESCRIPTION OF DRAWINGS

[0054] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following describes the drawings required for the embodiments, and the following drawings are only some embodiments of the present disclosure, and do not specifically limit the protection scope of the present disclosure.

[0055] FIG. 1a is one exemplary schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure;

[0056] FIG. 1b is one exemplary schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure;

[0057] FIG. 1c is one exemplary schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure;

[0058] FIG. 2a is one exemplary schematic diagram of a method of transmitting a perception reference signal according to an embodiment of the present disclosure;

[0059] FIG. 2b is one exemplary schematic diagram of a method of transmitting a perception reference signal according to an embodiment of the present disclosure;

[0060] FIG. 2c is one exemplary schematic diagram of a method of transmitting a perception reference signal according to an embodiment of the present disclosure;

[0061] FIG. 3a is one exemplary schematic diagram of a method of transmitting a perception reference signal according to an embodiment of the present disclosure;

[0062] FIG. 3b is an exemplary schematic diagram of a method of transmitting a sensing reference signal, according to an embodiment of the present disclosure;

[0063] FIG. 4a is an exemplary schematic diagram of a method of transmitting a sensing reference signal, according to an embodiment of the present disclosure;

[0064] FIG. 4b is an exemplary schematic diagram of a method of transmitting a sensing reference signal, according to an embodiment of the present disclosure;

[0065] FIG. 4c is an exemplary schematic diagram of a method of transmitting a sensing reference signal, according to an embodiment of the present disclosure;

[0066] FIG. 5a is an exemplary schematic diagram of a method of transmitting a sensing reference signal, according to an embodiment of the present disclosure;

[0067] FIG. 5b is an exemplary schematic diagram of a method of transmitting a sensing reference signal, according to an embodiment of the present disclosure;

[0068] FIG. 6a is an exemplary schematic diagram of a method of transmitting a sensing reference signal, according to an embodiment of the present disclosure;

[0069] FIG. 6b is an exemplary schematic diagram of a method of transmitting a sensing reference signal, according to an embodiment of the present disclosure;

[0070] FIG. 6c is an exemplary schematic diagram of a method of transmitting a sensing reference signal, according to an embodiment of the present disclosure;

[0071] FIG. 6d is an exemplary schematic diagram of a method of transmitting a sensing reference signal, according to an embodiment of the present disclosure;

[0072] FIG. 7a is an exemplary schematic diagram of a method of transmitting a sensing reference signal, according to an embodiment of the present disclosure;

[0073] FIG. 7b is an exemplary schematic diagram of a method of transmitting a sensing reference signal, according to an embodiment of the present disclosure;

[0074] FIG. 7c is an exemplary schematic diagram of a method of transmitting a sensing reference signal, according to an embodiment of the present disclosure;

[0075] FIG. 8 is an exemplary schematic diagram of a method of transmitting a sensing reference signal, according to an embodiment of the present disclosure;

[0076] FIG. 9a is a structural schematic diagram of a first node, according to an embodiment of the present disclosure;

[0077] FIG. 9b is a structural schematic diagram of a second node according to an embodiment of the present disclosure;

[0078] FIG. 9c is a structural schematic diagram of a third node according to an embodiment of the present disclosure;

[0079] FIG. 9d is a structural schematic diagram of an SF according to an embodiment of the present disclosure;

[0080] FIG. 10a is one of the schematic diagrams of a communication device according to an embodiment of the present disclosure;

[0081] FIG. 10b is another of the schematic diagrams of a communication device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0082] Embodiments of the present disclosure provide a method, apparatus, device and storage medium for transmitting a sensing reference signal.

[0083] In a first aspect, embodiments of the present disclosure provide a method for transmitting a sensing reference signal, performed by a first node, comprising:

[0084] determining transmission power adjustment information;

[0085] adjusting transmission power according to the transmission power adjustment information;

[0086] transmitting the sensing reference signal according to the adjusted transmission power.

[0087] In the above embodiments, by adjusting the transmission power of the sensing reference signal, a more reasonable transmission power is used when the sensing reference signal is transmitted in different types of modes, thereby improving transmission efficiency and transmission effectiveness.

[0088] In combination with the embodiments of the first aspect, in some embodiments, the determining transmission power adjustment information comprises:

[0089] receiving a transmission power adjustment command sent by an SF or a second node;

[0090] determining the transmission power adjustment information according to the transmission power adjustment command.

[0091] In the above embodiments, the transmission power of the sensing reference signal is adjusted according to the transmission power adjustment command, so as to achieve the adjustment required by the command sender and improve the coordination between constituent devices.

[0092] In combination with the embodiments of the first aspect, in some embodiments, the determining transmission power adjustment information comprises:

[0093] receiving a reference signal sent by a second node;

[0094] determine the power loss according to the reference signal;

[0095] determine the transmission power adjustment information according to the power loss.

[0096] In the above embodiment, the transmission power of the sensing reference signal is adjusted according to the reference signal, and the adjustment function is realized in response to the second node sending the reference signal, thereby improving the coordination between the constituent devices.

[0097] In combination with the embodiment of the first aspect, in some embodiments, the following two beam directions have a corresponding relationship:

[0098] a beam direction of the reference signal;

[0099] a beam direction of the sensing reference signal sent by the first node.

[0100] In the above embodiment, the reference signal having a corresponding relationship with the sensing reference signal sent by the first node is used, so that the adjustment of the transmission power is related to the historically transmitted sensing reference signal, and the adjustment effect is more reasonable.

[0101] In combination with the embodiment of the first aspect, in some embodiments, the determining the power loss according to the reference signal comprises:

[0102] determining the power loss according to the received power of at least one path of the reference signal.

[0103] In the above embodiment, the transmission power of the sensing reference signal is adjusted according to the received power of all paths of the reference signal, the adjustment function is realized in response to the second node sending the reference signal, thereby improving the coordination between the constituent devices; and the transmission power of the sensing reference signal is adjusted according to the received power of part of the paths of the reference signal, thereby saving the processing power consumption of the first node.

[0104] In combination with the embodiment of the first aspect, in some embodiments, the at least one path corresponds to a path of the SO reflection.

[0105] In the above embodiment, the transmission power of the sensing reference signal is adjusted according to the received power of part of the paths (corresponding to the path of the SO reflection) of the reference signal, so that the main cause of the power loss can be better considered, and the adjustment is more suitable for the reflection operation of the SO.

[0106] In combination with the embodiment of the first aspect, in some embodiments, the method further comprises:

[0107] receiving first indication information sent by the SF or the second node, the first indication information being used to indicate at least one path in the reference signal.

[0108] In the above embodiments, in response to the indication of the second node, the path expected to be used by the second node is determined and used, and the coordination between the constituent devices is improved.

[0109] In a second aspect, the embodiments of the present disclosure provide a method for receiving a sensing reference signal, executed by a second node, comprising:

[0110] receiving the sensing reference signal;

[0111] measuring one or more path received powers of the sensing reference signal, the one or more paths at least including at least one path reflected by a sensing target SO.

[0112] In the above embodiments, the path received power of the sensing reference signal is measured, which provides a precondition for adjusting the transmission power of the first node, and the coordination between the constituent devices is improved.

[0113] In combination with the embodiments of the second aspect, in some embodiments, the method further comprises:

[0114] sending reporting information to a sensing function entity SF, the reporting information being used to indicate the one or more path received powers of the sensing reference signal.

[0115] In the above embodiments, the SF is informed of the path received power of the sensing reference signal, so that the SF determines a reasonable transmission power adjustment command accordingly.

[0116] In combination with the embodiments of the second aspect, in some embodiments, the method further comprises:

[0117] receiving second indication information sent by the SF, the second indication information being used to indicate at least one path of the sensing reference signal, the at least one path being a path reflected by the SO, or the at least one path being a path meeting a first condition;

[0118] sending, to the SF, a path received power of the at least one path in the sensing reference signal.

[0119] In the above embodiments, in response to the indication of the SF, the SF is provided with the path received power of the path required by the SF, so that the SF determines a reasonable transmission power adjustment command accordingly.

[0120] In combination with the embodiments of the second aspect, in some embodiments, the method further comprises:

[0121] receiving third indication information sent by the SF, the third indication information being used to indicate the first condition, or being used to indicate the first condition and a first quantity;

[0122] transmit, to the SF, a path received power of a path in the sensing reference signal that meets the first condition, or transmit, to the SF, a path received power of a path in the sensing reference signal that meets the first condition and is no more than the first number of paths.

[0123] In the above embodiments, in response to the indication of the SF, the selection condition of the selected path is learned, and the path received power of the path required by the SF is provided to the SF according to the selection condition, so that the SF determines a reasonable transmit power adjustment command accordingly.

[0124] In combination with the embodiments of the second aspect, in some embodiments, the third indication information includes a time delay threshold parameter, and the first condition is that the time delay of the path is less than the time delay threshold parameter; or

[0125] the third indication information includes a time delay range parameter, and the first condition is that the time delay of the path is within the time delay range parameter; or

[0126] the third indication information includes an angle of arrival range parameter, and the first condition is that the angle of arrival of the path is within the angle of arrival range parameter;

[0127] the third indication information includes an index threshold parameter, and the first condition is that the index of the path is less than the threshold parameter, or

[0128] the third indication information includes an index range parameter, and the first condition is that the index of the path is within the index range.

[0129] In the above embodiments, in response to the indication of the SF, the selection condition of the selected path is learned, and the path received power of the path required by the SF is provided to the SF according to the selection condition, so that the SF determines a reasonable transmit power adjustment command accordingly.

[0130] In combination with the embodiments of the second aspect, in some embodiments, the method further includes:

[0131] determining at least one path, the at least one path being a path reflected by the SO, or the at least one path being a path meeting the first condition;

[0132] determining and transmitting, to the first node or the SF, a transmit power adjustment command according to the path received power of the at least one path, the transmit power adjustment command being used for the first node to adjust a transmit power for transmitting the sensing reference signal.

[0133] In the above embodiments, the second node determines the transmit power adjustment command by itself, saving the processing power consumption of the SF.

[0134] In combination with the embodiments of the second aspect, in some embodiments, the method further includes:

[0135] A reference signal is sent to the first node, and the reference signal is used by the first node to determine the power loss of the reference signal.

[0136] In conjunction with the embodiments of the first aspect, in some embodiments, the following two beam directions have a corresponding relationship:

[0137] The beam direction of the reference signal;

[0138] The beam direction of the sensing reference signal sent by the first node.

[0139] Thirdly, embodiments of this disclosure provide a method for transmitting and receiving sensing reference signals, performed by a third node, including:

[0140] Receive sensing reference signals;

[0141] Measure the received power of one or more paths of the sensing reference signal, wherein the one or more paths include at least one path reflected by the sensing target SO;

[0142] Determine the transmit power adjustment information;

[0143] Adjust the transmission power according to the transmission power adjustment information;

[0144] Based on the adjusted transmission power, a sensing reference signal is sent.

[0145] In conjunction with embodiments of the third aspect, in some embodiments, determining the transmit power adjustment information includes:

[0146] The transmit power adjustment information is determined based on at least one path received power of the sensing reference signal.

[0147] In conjunction with embodiments of the third aspect, in some embodiments, a reporting information is sent to the sensing functional entity SF, the reporting information being used to indicate the one or more path received power of the sensing reference signal.

[0148] In conjunction with the embodiments of the third aspect, in some embodiments, the method further includes:

[0149] The SF sends a second indication information, which is used to indicate at least one path in the received sensing reference signal, the at least one path being the path reflected by the SO, or the at least one path being a path that meets a first condition;

[0150] The path received power of at least one path in the sensing reference signal is sent to the SF.

[0151] In conjunction with the embodiments of the third aspect, in some embodiments, the method further includes:

[0152] receive third indication information sent by the SF, the third indication information being used for indicating the first condition, or being used for indicating the first condition and the first quantity;

[0153] send, to the SF, path received power of paths in the sensing reference signal that meet the first condition, or send, to the SF, path received power of paths in the sensing reference signal that meet the first condition and are not more than the first quantity.

[0154] With reference to the third aspect, in some embodiments, the determining the transmission power adjustment information comprises:

[0155] receive a transmission power adjustment command sent by a sensing function entity (SF);

[0156] determine the transmission power adjustment information according to the transmission power adjustment command.

[0157] In a fourth aspect, the embodiments of the present disclosure provide a management method, executed by a sensing function entity (SF), comprising:

[0158] send, to a first node or a third node, a transmission power adjustment command, wherein the transmission power adjustment command is used for the first node to adjust transmission power for sending a sensing reference signal.

[0159] With reference to the fourth aspect, in some embodiments, the method further comprises:

[0160] receive reporting information sent by a second node or a third node, the reporting information being used for indicating one or more path received powers of the sensing reference signal.

[0161] With reference to the fourth aspect, in some embodiments, the method further comprises:

[0162] determine the transmission power adjustment command according to the path received power of the sensing reference signal.

[0163] With reference to the fourth aspect, in some embodiments, the determining the transmission power adjustment command according to the path received power of the sensing reference signal comprises:

[0164] determine at least one path of the sensing reference signal, the at least one path being a path reflected by the SO, or the at least one path being a path meeting a first condition;

[0165] determine the transmission power adjustment command and the sensing reference signal adjustment command according to path received power of the at least one path of the sensing reference signal.

[0166] With reference to the fourth aspect, in some embodiments, the method further comprises:

[0167] sending third indication information to the second node or the third node, the first indication information being used for indicating at least one path of the sensing reference signal, the at least one path being a path of the SO reflection, or the at least one path being a path meeting the first condition.

[0168] In combination with the embodiments of the fourth aspect, in some embodiments, the method further includes:

[0169] sending fourth indication information to the second node or the third node, the fourth indication information being used for indicating the first condition, or being used for indicating the first condition and the first number.

[0170] In combination with the embodiments of the fourth aspect, in some embodiments, the method further includes:

[0171] sending first indication information to the second node or the third node, the first indication information being used for indicating at least one path in the reference signal sent by the second node or the third node.

[0172] In combination with the embodiments of the fourth aspect, in some embodiments, the at least one path corresponds to a path of the SO reflection.

[0173] In the fifth aspect, the embodiments of the present disclosure provide a first node, including:

[0174] a processing module, configured to determine transmission power adjustment information, and adjust the transmission power according to the transmission power adjustment information.

[0175] a transceiver module, configured to send a first sensing reference signal according to the adjusted transmission power.

[0176] In the sixth aspect, the embodiments of the present disclosure provide a second node, including:

[0177] a transceiver module, configured to receive a sensing reference signal.

[0178] a processing module, configured to measure one or more path received powers of the sensing reference signal, the one or more paths at least including at least one path of a sensed target SO reflection.

[0179] In the seventh aspect, the embodiments of the present disclosure provide a third node, including:

[0180] a processing module, configured to determine transmission power adjustment information, and adjust the transmission power according to the transmission power adjustment information, and measure one or more path received powers of the sensing reference signal, the one or more paths at least including at least one path of a sensed target SO reflection.

[0181] The transceiver module is configured to receive the sensing reference signal, and transmit the sensing reference signal to the target SO according to the adjusted transmit power.

[0182] In an eighth aspect, an embodiment of the present disclosure provides a sensing function entity, comprising:

[0183] The transceiver module is configured to transmit a transmit power adjustment command to the first node or the third node, wherein the transmit power adjustment command is used for the first node to adjust the transmit power for transmitting the sensing reference signal.

[0184] In a ninth aspect, an embodiment of the present disclosure provides a first node, comprising:

[0185] one or more processors;

[0186] The first node is configured to implement the method of the first aspect.

[0187] In a tenth aspect, an embodiment of the present disclosure provides a second node, comprising:

[0188] one or more processors;

[0189] The first node is configured to implement the method of the second aspect.

[0190] In an eleventh aspect, an embodiment of the present disclosure provides a third node, comprising:

[0191] one or more processors;

[0192] The first node is configured to implement the method of the third aspect.

[0193] In a twelfth aspect, an embodiment of the present disclosure provides a sensing function entity, comprising:

[0194] one or more processors;

[0195] The first node is configured to implement the method of the fourth aspect.

[0196] In a thirteenth aspect, an embodiment of the present disclosure provides a communication system, comprising a terminal and a network device, wherein:

[0197] The terminal comprises the first node, and the network device comprises the second node.

[0198] Alternatively, the terminal comprises the second node, and the network device comprises the first node.

[0199] Alternatively, the terminal comprises the third node.

[0200] Alternatively, the network device comprises the third node.

[0201] In a fourteenth aspect, the embodiments of the present disclosure provide a storage medium, which stores instructions, wherein,

[0202] When the instructions run on the communication device, the communication device is caused to perform the method according to any one of the first aspect to the fourth aspect.

[0203] In a fifteenth aspect, the embodiments of the present disclosure provide a program product, which stores instructions, wherein,

[0204] When the program product is executed by a communication device, the communication device is caused to perform the method according to any one of the first aspect to the fourth aspect.

[0205] In a sixteenth aspect, the embodiments of the present disclosure provide a computer program, which, when running on a computer, causes the computer to perform the method according to any one of the first aspect to the fourth aspect.

[0206] In a seventeenth aspect, the embodiments of the present disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the method described in the optional implementation of any one of the first aspect to the fourth aspect.

[0207] It can be understood that the terminal, the network device, the communication system, the storage medium, the program product, the computer program, the chip or the chip system are all used to perform the method proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved are referred to the beneficial effects in the corresponding method, which will not be described here.

[0208] The embodiments of the present disclosure propose a transmission method and device for transmitting a sensing reference signal, a network device, a communication system, a storage medium, a program product, a computer program, a chip or a chip system. In some embodiments, the transmission method and the information processing method, the communication method, and other terms can be replaced with each other, and the device for transmitting a sensing reference signal and the information processing device, the communication device, and other terms can be replaced with each other.

[0209] The embodiments of the present disclosure are not exhaustive, but only illustrate some embodiments, and are not specific limitations on the protection scope of the present disclosure. In the case of no contradiction, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily, for example, the scheme after removing some steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be exchanged arbitrarily, in addition, the optional implementation in an embodiment can be combined arbitrarily; in addition, the embodiments can be combined arbitrarily, for example, the steps of different embodiments or parts of the steps can be combined arbitrarily, an embodiment can be combined with the optional implementation of other embodiments.

[0210] In the embodiments of the present disclosure, the terms and / or descriptions among the embodiments are consistent and can be referred to each other if there is no special description and logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0211] The terms used in the embodiments of the present disclosure are only for the purpose of describing particular embodiments and are not used as limitations of the present disclosure.

[0212] In the embodiments of the present disclosure, unless otherwise specified and logically conflicted, the elements expressed in singular form, such as "one", "one kind", "the", "the above", "the", "the above", "this" and the like, can represent "one and only one", and can also represent "one or more", "at least one" and the like. For example, in the case of using articles such as "a", "an", "the" and the like in English, the noun after the article can be understood as singular expression, and can also be understood as plural expression.

[0213] In the embodiments of the present disclosure, "plurality" refers to two or more.

[0214] In some embodiments, the terms "at least one of", "one or more", "a plurality of", "multiple" and the like can be replaced with each other.

[0215] In some embodiments, the writing manner of "at least one of A, B", "A and / or B", "A in one case and B in another case", "A in response to one case and B in response to another case" and the like can include the following technical solutions according to the case: A in some embodiments (A is executed regardless of B); B in some embodiments (B is executed regardless of A); A and B are selectively executed in some embodiments (A and B are selected from A and B); A and B are executed in some embodiments (A and B are executed). When there are more branches such as A, B, C, the above is similar.

[0216] In some embodiments, the writing manner of "A or B" and the like can include the following technical solutions according to the case: A in some embodiments (A is executed regardless of B); B in some embodiments (B is executed regardless of A); A and B are selectively executed in some embodiments (A and B are selected from A and B). When there are more branches such as A, B, C, the above is similar.

[0217] The prefix words of "first", "second" and the like in the embodiments of the present disclosure are merely used to distinguish different description objects, and do not constitute limitation on the position, order, priority, quantity or content of the description objects. The description objects are described in the claims or embodiments, and should not be construed as redundant limitation because of the use of the prefix words. For example, the description object is "field", and the ordinal words before "field" in "first field" and "second field" do not limit the position or order between "fields", and "first" and "second" do not limit whether the "fields" modified thereby are in the same message or not, nor limit the order of "first field" and "second field". For another example, the description object is "level", and the ordinal words before "level" in "first level" and "second level" do not limit the priority between "levels". For another example, the quantity of the description object is not limited by the ordinal words, and can be one or more. For example, "first device", wherein the quantity of "device" can be one or more. In addition, the objects modified by different prefix words can be the same or different, for example, the description object is "device", and "first device" and "second device" can be the same device or different devices, and the types thereof can be the same or different. For another example, the description object is "information", and "first information" and "second information" can be the same information or different information, and the contents thereof can be the same or different.

[0218] In some embodiments, "including A", "containing A", "for indicating A", "carrying A" can be interpreted as directly carrying A, or indirectly indicating A.

[0219] In some embodiments, the terms of "in response to", "in response to determining", "in the case of", "when", "when", "if", "if" and the like can be replaced with each other.

[0220] In some embodiments, the terms of "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not lower than", "above" and the like can be replaced with each other, and the terms of "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", "below" and the like can be replaced with each other.

[0221] In some embodiments, the apparatuses and devices can be interpreted as entities, and also as virtual, whose names are not limited to the names described in the embodiments, and in some cases can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", and the like.

[0222] In some embodiments, "network" can be interpreted as an apparatus included in the network, such as an access network device, a core network device, and the like.

[0223] In some embodiments, "access network device (AN device)" can also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments can also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", and the like.

[0224] In some embodiments, a "terminal" or "terminal device" can be referred to as a "user equipment," "user terminal," "mobile station," "mobile terminal," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," and / or the like.

[0225] In some embodiments, data, information, and / or the like can be obtained in compliance with laws and regulations of the country in which the data, information, and / or the like is obtained.

[0226] In some embodiments, data, information, and / or the like can be obtained with the consent of a user.

[0227] Further, each element, each row, or each column in a table of an embodiment of the present disclosure can be implemented as an independent embodiment, and a combination of any element, any row, or any column can be implemented as an independent embodiment.

[0228] In the design process of the ISAC system, the service requirements of communication and sensing need to be considered at the same time. The following will be described in combination with FIG. 1a. FIG. 1a is a schematic diagram of a system structure using ISCA technology, which involves the following six modes:

[0229] The first mode: base station self-transmission and self-reception mode, which can also be referred to as transmission point (TRP) monostatic mode. In this mode, the base station transmits a sensing reference signal (SRS), and after the sensing reference signal passes through the environment (which can include objects in addition to air), the base station receives and measures the sensing reference signal after scattering and / or reflection.

[0230] The second mode: inter-base station transmission and reception mode, which can also be referred to as TRP-TRP bi-static mode. In this mode, base station A transmits a sensing reference signal, and after the sensing reference signal passes through the environment (which can include objects in addition to air), base station B receives and measures the sensing reference signal after scattering and / or reflection.

[0231] The third mode: terminal-to-base station reception mode, which can also be referred to as UE-TRP bi-static mode. In this mode, the terminal transmits a sensing reference signal, and after the sensing reference signal passes through the environment (which can include objects in addition to air), the base station receives and measures the sensing reference signal after scattering and / or reflection.

[0232] The fourth mode: base station-to-terminal reception mode, which can also be referred to as TRP-UE bi-static mode. In this mode, the base station transmits a sensing reference signal, and after the sensing reference signal passes through the environment (which can include objects in addition to air), the terminal receives and measures the sensing reference signal after scattering and / or reflection.

[0233] The fifth mode: terminal self-transmission and self-reception mode, which can also be referred to as UE monostatic mode. In this mode, the terminal transmits a sensing reference signal, and after the sensing reference signal passes through the environment (which can include objects in addition to air), the terminal receives and measures the sensing reference signal after scattering and / or reflection.

[0234] The sixth mode: inter-terminal transmission and reception mode, which can also be referred to as UE-UE bi-static mode. In this mode, terminal A transmits a sensing reference signal, and after the sensing reference signal passes through the environment (which can include objects in addition to air), terminal B receives and measures the sensing reference signal after scattering and / or reflection.

[0235] In a sensing system, the target to be detected is generally not a network device or a terminal, and does not have the function of receiving and processing signals or transmitting signals, but can reflect or scatter signals after the signals arrive. The network device or terminal needs to determine the position of the target to be detected through the signals reflected by the target to be detected, or the changes in the existing signals in the sensing environment caused by the target to be detected entering the wireless sensing network. The changes can be at least one of the following:

[0236] Blocking the existing Line-of-Sight (LOS) path between the transmitter and the receiver, wherein the LOS path refers to a path through which signals can directly propagate from the transmitter to the receiver without obstacles;

[0237] Blocking the existing NLOS path reflected by the known environmental target to the receiver;

[0238] Adding a new NLOS path.

[0239] The following embodiments of the present disclosure can be applied to the communication system shown in FIGS. 1b and 1c, or part of the subjects, but are not limited thereto.

[0240] The subjects shown in FIGS. 1b and 1c are examples, and the communication system can include all or part of the subjects in FIGS. 1b and 1c, or other subjects other than those in FIGS. 1b and 1c. The number and form of each subject is arbitrary, and the connection relationship between the subjects is exemplary. The subjects can be connected or not connected, and the connection can be in any way, can be direct connection or indirect connection, can be wired connection or wireless connection.

[0241] The communication system shown in FIG. 1b includes:

[0242] A sensing function (SF), or an SF entity;

[0243] A sensing TX node (STN) for transmitting a sensing reference signal; which can be referred to as a first node;

[0244] A sensing RX node (SRN), which can be referred to as a second node, for receiving a reflected or scattered sensing reference signal. The reflected or scattered sensing reference signal is reflected or scattered by at least one target, which can include the target to be detected.

[0245] The communication system shown in FIG. 1b includes a terminal and a network device, wherein:

[0246] The terminal includes the STN, and the network device includes the SRN; or,

[0247] The terminal comprises an SRN, and the network device comprises an STN.

[0248] The communication system shown in FIG. 1c comprises:

[0249] A sensing function (SF), or an SF entity;

[0250] A sensing TRX node, which can be referred to as a third node, is configured to transmit a sensing reference signal and to receive a reflected or scattered sensing reference signal. The reflected or scattered sensing reference signal is reflected or scattered by at least one target, which can include a target under test.

[0251] The communication system shown in FIG. 1c comprises a terminal and a network device, wherein the sensing TRX node is located in the terminal or the sensing TRX node is located in the network device.

[0252] Embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-Wide Band (UWB), Bluetooth (Bluetooth (registered trademark)), Public Land Mobile Network (PLMN) network, Device-to-Device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Vehicle-to-Everything (V2X), system using other communication processing methods, next-generation system expanded based on them, and the like. In addition, a plurality of systems can be combined (for example, combination of LTE or LTE-A and 5G, and the like).

[0253] The interaction of the sensing reference signal transmission method is described below through a plurality of embodiments.

[0254] FIGS. 2a, 2b, and 2c correspond to embodiments in which the first node STN and the second node SRN are located in different terminals or network devices, and the SRN does not need to transmit a reference signal;

[0255] Fig. 3a and Fig. 3b correspond to the embodiments in which the first node STN and the second node SRN are located in different terminals or network devices, and the SRN needs to send a reference signal;

[0256] Fig. 4a, Fig. 4b and Fig. 4c correspond to the embodiments in which the STN and the SRN are located in the same terminal or the same network device (the functions of the STN and the SRN are collectively referred to as a third node), and are irrelevant to the reference signal.

[0257] Fig. 2a is an interaction diagram illustrating a sensing reference signal transmission method according to an embodiment of the present disclosure. As shown in Fig. 2a, the present disclosure relates to a sensing reference signal transmission method, which comprises:

[0258] In step S2101, the STN sends a sensing reference signal.

[0259] In some embodiments, the sensing reference signal sent by the STN is reflected or scattered by the measured target.

[0260] In some embodiments, the sensing reference signal sent by the STN is attenuated due to transmission in the environment.

[0261] In some embodiments, the STN sends the sensing reference signal using an initial power.

[0262] In some embodiments, the initial power is a predetermined value configured by the SF.

[0263] In an example, since the SF knows the location, surrounding environment, detection range, etc. of the STN, the initial power within a reasonable range can be obtained according to these information.

[0264] In some embodiments, the initial power is agreed by a protocol.

[0265] In some embodiments, the initial power is the maximum transmission power of the STN for sending the sensing reference signal.

[0266] In step S2102, the SRN receives the sensing reference signal.

[0267] In some embodiments, the sensing reference signal received by the SRN is the information after being reflected or scattered by the measured target.

[0268] In some embodiments, the sensing reference signal received by the SRN is the sensing reference signal after being attenuated due to transmission in the environment.

[0269] In step S2103, the SRN measures the received power of the sensing reference signal.

[0270] In some embodiments, the SRN measures the received power of one or more paths of the sensing reference signal.

[0271] In an example, the sensing reference signal includes M paths, and the SRN measures M path received powers, each of which corresponds to one path.

[0272] In an example, the received power of the i-th path is P Rx-iPath .

[0273] In some embodiments, the one or more paths include at least one path reflected by the sensing target SO.

[0274] In some embodiments, the one or more path received powers of the sensing reference signal measured by the SRN include at least the path received power of at least one path reflected by the sensing target SO.

[0275] In step S2104, the SRN sends the reporting information to the SF.

[0276] In some embodiments, the reporting information includes one or more path received powers of the sensing reference signal measured by the SRN.

[0277] In some embodiments, the reporting information is used to indicate the one or more path received powers of the sensing reference signal.

[0278] In an example, the sensing reference signal includes M paths, and the SRN measures M path received powers, each of which corresponds to one path, and the reporting information includes the M path received powers measured by the SRN.

[0279] In some embodiments, the one or more paths include at least one path reflected by the sensing target SO.

[0280] In some embodiments, the path received powers included in the reporting information include at least the path received power of at least one path reflected by the sensing target SO.

[0281] In step S2105, the SF determines a transmit power adjustment command.

[0282] In some embodiments, the SF determines the transmit power adjustment command according to the reporting information.

[0283] In some embodiments, the transmit power adjustment command includes transmit power adjustment information.

[0284] In some embodiments, the transmit power adjustment information includes at least one of:

[0285] information for indicating an increase in transmit power;

[0286] information for indicating a decrease in transmit power;

[0287] information for indicating maintenance of the transmit power.

[0288] In some embodiments, when the transmission power adjustment information includes information for indicating to increase the transmission power, it further includes information for indicating the power increment.

[0289] In an example, the information for indicating the power increment is a specific power increment value.

[0290] In another example, the information for indicating the power increment is code information, and different code information corresponds to different power increment values.

[0291] In some embodiments, when the transmission power adjustment information includes information for indicating to decrease the transmission power, it further includes information for indicating the power decrement.

[0292] In an example, the information for indicating the power decrement is a specific power decrement value.

[0293] In another example, the information for indicating the power decrement is code information, and different code information corresponds to different power decrement values.

[0294] In some embodiments, when the transmission power adjustment information includes information for indicating to maintain the transmission power, it includes information for indicating that the power increment or decrement is 0, or does not include other information.

[0295] In some embodiments, the transmission power adjustment command can be replaced by the transmission power adjustment information, i.e., the transmission power adjustment command and the transmission power adjustment information are the same information.

[0296] In step S2106, the SF sends the transmission power adjustment command to the STN.

[0297] In step S2107, the STN adjusts the transmission power.

[0298] In some embodiments, the STN adjusts the transmission power according to the transmission power adjustment command.

[0299] In some embodiments, when the transmission power adjustment command includes the transmission power adjustment information, the STN adjusts the transmission power according to the transmission power adjustment command.

[0300] In an example, the STN adjusts the transmission power according to the transmission power adjustment information included in the transmission power adjustment command.

[0301] In some embodiments, when the transmission power adjustment command can be replaced by the transmission power adjustment information, i.e., the transmission power adjustment command and the transmission power adjustment information are the same information, the STN adjusts the transmission power according to the transmission power adjustment information.

[0302] Step S2108. The STN transmits the sensing reference signal according to the adjusted transmit power.

[0303] The method according to embodiments of the present disclosure can include at least one of steps S2101-S2108.

[0304] In some embodiments, any two of steps S2101-S2108 can exchange order.

[0305] In some embodiments, any of steps S2101-S2108 can be omitted.

[0306] FIG. 2b is an interaction diagram illustrating a sensing reference signal transmission method according to embodiments of the present disclosure. As shown in FIG. 2b, the present disclosure relates to a sensing reference signal transmission method, which includes:

[0307] Step S2201. The STN transmits the sensing reference signal.

[0308] In some embodiments, the implementation of step S2201 can refer to the implementation of step S2101, which will not be repeated here.

[0309] Step S2202. The SRN receives the sensing reference signal.

[0310] In some embodiments, the implementation of step S2202 can refer to the implementation of step S2102, which will not be repeated here.

[0311] Step S2203. The SRN measures the received power of the sensing reference signal.

[0312] In some embodiments, the implementation of step S2203 can refer to the implementation of step S2103, which will not be repeated here.

[0313] Step S2204. The SF transmits indication information to the SRN.

[0314] In some embodiments, the SF transmits second indication information to the SRN, where the second indication information is used to indicate at least one path of the sensing reference signal.

[0315] In some embodiments, the at least one path is a path reflected by the measured target SO.

[0316] In some embodiments, the at least one path is a path meeting a first condition.

[0317] In some embodiments, the first condition is that the time delay of the path is less than a time delay threshold parameter; or

[0318] The first condition is that the time delay of the path is within a time delay range parameter;

[0319] The first condition is that the angle of arrival of the path is within an angle of arrival range parameter;

[0320] The first condition is that the index of the path is less than a threshold value, or,

[0321] The first condition is that the index of the path is within an index range.

[0322] The path is indexed according to the time at which the path is received at the receiving end.

[0323] In some embodiments, the SF sends third indication information to the SRN, wherein the third indication information is used to indicate the first condition, or, is used to indicate the first condition and the first number.

[0324] In some embodiments, the third indication information includes a delay threshold parameter, and the first condition is that the delay of the path is less than the delay threshold parameter.

[0325] Or, the third indication information includes a delay range parameter, and the first condition is that the delay of the path is within the delay range parameter.

[0326] Or, the third indication information includes an angle of arrival range parameter, and the first condition is that the angle of arrival of the path is within the angle of arrival range parameter.

[0327] The delay is inversely proportional to the power, and using the delay of the path that is less than the delay threshold parameter is conducive to signal measurement and processing.

[0328] Using the delay of the path that is within the delay range parameter, and the angle of arrival of the path that is within the angle of arrival range parameter is suitable for a scenario in which the SF has already obtained the approximate position of the SO, for example, the SF has previously positioned the SO, and the approximate position of the SO can be inferred through some known information.

[0329] Step S2205, the SRN sends at least one path received power to the SF.

[0330] In some embodiments, the SRN sends the single-path received power of at least one path in the sensing reference signal to the SF.

[0331] In some embodiments, the SRN sends the path received power of the path meeting the first condition in the sensing reference signal to the SF.

[0332] In some embodiments, the SRN sends the path received power of the path meeting the first condition and not exceeding the first number in the sensing reference signal to the SF.

[0333] Step S2206, the SF determines a transmission power adjustment command.

[0334] In some embodiments, the SF determines the transmit power adjustment command according to the at least one path received power.

[0335] In some embodiments, the information of the transmit power adjustment command can refer to the implementation of step S2105, which will not be repeated here.

[0336] Step S2207, the SF sends the transmit power adjustment command to the STN.

[0337] In some embodiments, the implementation of step S2207 can refer to the implementation of step S2106, which will not be repeated here.

[0338] Step S2208, the STN adjusts the transmit power of the sensing reference signal.

[0339] In some embodiments, the implementation of step S2208 can refer to the implementation of step S2107, which will not be repeated here.

[0340] Step S2209, the STN transmits the sensing reference signal according to the adjusted transmit power.

[0341] The method related to the embodiments of the present disclosure can include at least one of steps S2201 to S2209.

[0342] In some embodiments, any two steps of steps S2201 to S2209 can exchange the order.

[0343] In some embodiments, any step of steps S2201 to S2209 can be omitted.

[0344] FIG. 2c is an interaction schematic diagram of a sensing reference signal transmission method according to an embodiment of the present disclosure. As shown in FIG. 2c, the embodiments of the present disclosure relate to a sensing reference signal transmission method, and the above method comprises:

[0345] Step S2301, the STN transmits the sensing reference signal.

[0346] In some embodiments, the implementation of step S2301 can refer to the implementation of step S2101, which will not be repeated here.

[0347] Step S2302, the SRN receives the sensing reference signal.

[0348] In some embodiments, the implementation of step S2302 can refer to the implementation of step S2102, which will not be repeated here.

[0349] Step S2303, the SRN measures the received power of the sensing reference signal.

[0350] In some embodiments, the implementation of step S2303 can refer to the implementation of step S2103, which will not be repeated here.

[0351] Step S2304, the SRN determines the transmit power adjustment command.

[0352] In some embodiments, the SRN measures one or more path received powers of the sensing reference signal.

[0353] In an example, when the sensing reference signal includes M paths, the SRN measures M path received powers, each of which corresponds to one path.

[0354] In some embodiments, the one or more paths at least include at least one path reflected by the sensing target SO.

[0355] In some embodiments, the SF determines the transmit power adjustment command according to the measured received power of the sensing reference signal.

[0356] In some embodiments, the SRN determines at least one path, which is a path reflected by the SO, or which meets the first condition.

[0357] In some embodiments, the SF measures the path received power of the at least one path of the sensing reference signal to determine the transmit power adjustment command.

[0358] In some embodiments, the information of the transmit power adjustment command can refer to the implementation of step S2105, which will not be repeated here.

[0359] Step S2305, the SRN sends the transmit power adjustment command to the SF.

[0360] Step S2306, the SF sends the transmit power adjustment command to the STN.

[0361] Step S2307, the SRN sends the transmit power adjustment command to the STN.

[0362] Step S2308, the STN adjusts the transmit power of the sensing reference signal.

[0363] In some embodiments, steps S2305 and S2306 can be omitted. The STN adjusts the transmit power of the sensing reference signal according to the transmit power adjustment command received from the SRN.

[0364] In some embodiments, step S2307 can be omitted. The STN adjusts the transmit power of the sensing reference signal according to the transmit power adjustment command received from the SF.

[0365] In some embodiments, the STN adjusts the transmission power of the sensing reference signal according to the transmission power adjustment command received from the SRN and the transmission power adjustment command received from the SF.

[0366] At step S2309, the STN transmits the sensing reference signal according to the adjusted transmission power.

[0367] The method related to the embodiments of the present disclosure can include at least one of steps S2301-S2309.

[0368] In some embodiments, the order of any two of steps S2301-S2309 can be exchanged.

[0369] In some embodiments, any of steps S2301-S2309 can be omitted.

[0370] FIG. 3a is an interaction diagram illustrating a sensing reference signal transmission method according to an embodiment of the present disclosure. As shown in FIG. 3a, the embodiments of the present disclosure relate to a sensing reference signal transmission method, and the method includes:

[0371] At step S3101, the STN transmits a sensing reference signal.

[0372] In some embodiments, the implementation of step S3101 can refer to the implementation of step S2101, which will not be described here.

[0373] At step S3102, the SRN receives the sensing reference signal.

[0374] In some embodiments, the implementation of step S3102 can refer to the implementation of step S2102, which will not be described here.

[0375] At step S3103, the SRN transmits a reference signal to the STN.

[0376] In some embodiments, for different STN / SRN combinations, the reference signal can be:

[0377] (1) When the STN is located in a base station and the SRN is located in a terminal, the uplink pilot transmitted by the terminal.

[0378] (2) When the STN is located in a terminal and the SRN is located in a base station, the downlink pilot transmitted by the BS.

[0379] (3) When the STN and the SRN are located in different terminals (terminal A and terminal B), the uplink pilot transmitted by terminal B.

[0380] Wherein, the terminal A needs to obtain the time-frequency position information of the uplink pilot of the terminal B (if the terminal A and the terminal B are in the same cell, the terminal A needs to know the TA information of the terminal B; if the terminal A and the terminal B are not in the same cell, the terminal A needs to know the synchronization time interval of the base station where the terminal B is located and the base station where the terminal A is located, and needs to know the TA information of the terminal B) to accurately receive the uplink pilot.

[0381] (4) The STN and the SRN are located in different base stations (base station A and base station B) to send downlink pilots.

[0382] Wherein, the base station A needs to obtain the time-frequency position information of the downlink pilot of the base station B to accurately receive the uplink pilot. The base station A and the base station B need to be synchronized, or know the synchronization time interval between them.

[0383] In some embodiments, the reference signal is used by the first node to determine the power loss of the reference signal.

[0384] In some embodiments, the reference signal can be referred to as a reference signal.

[0385] In some embodiments, the following two beam directions have a corresponding relationship:

[0386] The beam direction of the reference signal;

[0387] The beam direction of the sensing reference signal sent by the STN.

[0388] Alternatively, it is described as:

[0389] The beam direction of the reference signal, and the beam direction of the sensing reference signal sent by the STN, have a corresponding relationship.

[0390] In some embodiments, the corresponding relationship is configured by the SF for the STN and / or the SRN.

[0391] In some embodiments, the configuration manner can be to configure the corresponding relationship between a pair of information, which is the sensing reference signal and the reference signal.

[0392] Step S3104, the SF or the SRN sends indication information to the STN.

[0393] In some embodiments, the indication information can be referred to as first indication information, which is used to indicate at least one path in the reference signal.

[0394] Step S3105, the STN determines the power loss.

[0395] In some embodiments, the STN determines the power loss according to the reference signal.

[0396] In some embodiments, the STN determines the power loss according to the received power of the at least one path of the reference signal.

[0397] In some embodiments, the STN determines the at least one path of the reference signal according to the indication information, and determines the power loss according to the received power of the at least one path of the reference signal.

[0398] In some embodiments, the at least one path corresponds to the path of the SO reflection.

[0399] In some embodiments, the power loss of a path can be understood as the transmission power minus the received power of the path, and the power loss of multiple paths can be understood as the transmission power minus the sum of the received power of the multiple paths.

[0400] Step S3106, the STN adjusts the transmission power of the sensing reference signal.

[0401] In some embodiments, the STN adjusts the transmission power of the sensing reference signal according to the power loss.

[0402] In some embodiments, the STN determines the transmission power adjustment information according to the power loss, and adjusts the transmission power of the sensing reference signal according to the transmission power adjustment information.

[0403] Step S3107, the STN transmits the sensing reference signal according to the adjusted transmission power.

[0404] The method related to the embodiments of the present disclosure can include at least one of steps S3101-S3107.

[0405] In some embodiments, any two steps of steps S3101-S3109 can exchange the order.

[0406] In some embodiments, any step of steps S3101-S3109 can be omitted.

[0407] FIG. 3b is an interaction schematic diagram of a sensing reference signal transmission method according to an embodiment of the present disclosure. As shown in FIG. 3b, the embodiments of the present disclosure relate to a sensing reference signal transmission method, and the above method comprises:

[0408] Step S3201, the STN transmits the sensing reference signal.

[0409] In some embodiments, the implementation of step S3201 can refer to the implementation of step S2101, which will not be described here.

[0410] Step S3202, the SRN receives the sensing reference signal.

[0411] In some embodiments, the implementation of step S3202 can refer to the implementation of step S2102, which will not be repeated here.

[0412] In step S3203, the STN sends the reference signal to the STN.

[0413] In some embodiments, the implementation of step S3203 can refer to the implementation of step S3103, which will not be repeated here.

[0414] In step S3204, the SF or the SRN sends the indication information to the STN.

[0415] In some embodiments, the indication information can be referred to as first indication information, which is used to indicate at least one path in the reference signal.

[0416] In step S3205, the STN determines the power loss.

[0417] In some embodiments, the implementation of step S3205 can refer to the implementation of step S3105, which will not be repeated here.

[0418] In step S3206, the SF sends the transmission power adjustment command to the STN.

[0419] In step S3207, the STN adjusts the transmission power of the sensing reference signal.

[0420] In some embodiments, the STN adjusts the transmission power of the sensing reference signal according to the power loss and the transmission power adjustment command.

[0421] In some embodiments, the STN determines the transmission power adjustment information according to the power loss and the transmission power adjustment command, and adjusts the transmission power of the sensing reference signal according to the transmission power adjustment information.

[0422] In step S3208, the STN sends the sensing reference signal according to the adjusted transmission power.

[0423] The method related to the embodiments of the present disclosure can include at least one of steps S3201 to S3208.

[0424] In some embodiments, any two steps of steps S3201 to S3208 can exchange the order.

[0425] In some embodiments, any step of steps S3201 to S3208 can be omitted.

[0426] FIG. 4a is an interaction schematic diagram of a sensing reference signal transmission method according to an embodiment of the present disclosure. As shown in FIG. 4a, the embodiments of the present disclosure relate to a sensing reference signal transmission method, and the above method comprises:

[0427] Step S4101: The third node transmits the sensing reference signal.

[0428] In some embodiments, the implementation of step S4101 can refer to the implementation of step S2101, which will not be repeated here.

[0429] Step S4102: The third node receives the sensing reference signal.

[0430] In some embodiments, the implementation of step S4102 can refer to the implementation of step S2102, which will not be repeated here.

[0431] Step S4103: The third node measures the received power.

[0432] In some embodiments, the implementation of step S4103 can refer to the implementation of step S2103, which will not be repeated here.

[0433] Step S4104: The third node sends the reporting information to the SF.

[0434] In some embodiments, the implementation of step S4104 can refer to the implementation of step S2104, which will not be repeated here.

[0435] Step S4105: The SF determines the transmission power adjustment command.

[0436] In some embodiments, the implementation of step S4105 can refer to the implementation of step S2105, which will not be repeated here.

[0437] Step S4106: The SF sends the transmission power adjustment command to the third node.

[0438] In some embodiments, the implementation of step S4106 can refer to the implementation of step S2106, which will not be repeated here.

[0439] Step S4107: The third node adjusts the transmission power.

[0440] In some embodiments, the implementation of step S4107 can refer to the implementation of step S2107, which will not be repeated here.

[0441] Step S4108: The third node transmits the sensing reference signal according to the adjusted transmission power.

[0442] The method related to the embodiments of the present disclosure can include at least one of steps S4101-S4108.

[0443] In some embodiments, any two of steps S4101-S4108 can exchange order.

[0444] In some embodiments, any of steps S4101-S4108 can be omitted.

[0445] FIG. 4b is an interaction schematic diagram of a sensing reference signal transmission method according to an embodiment of the present disclosure. As shown in FIG. 4b, the embodiment of the present disclosure relates to a sensing reference signal transmission method, and the method comprises:

[0446] Step S4201: The third node transmits a sensing reference signal.

[0447] In some embodiments, the implementation of step S4201 can refer to the implementation of step S2101, which will not be repeated here.

[0448] Step S4202: The third node receives a sensing reference signal.

[0449] In some embodiments, the implementation of step S4202 can refer to the implementation of step S2102, which will not be repeated here.

[0450] Step S4203: The third node measures a received power.

[0451] In some embodiments, the implementation of step S4203 can refer to the implementation of step S2103, which will not be repeated here.

[0452] Step S4204: The SF transmits indication information to the third node.

[0453] In some embodiments, the implementation of step S4204 can refer to the implementation of step S2204, which will not be repeated here.

[0454] Step S4205: The third node transmits at least one path received power to the SF.

[0455] In some embodiments, the implementation of step S4205 can refer to the implementation of step S2205, which will not be repeated here.

[0456] Step S4206: The SF determines a transmit power adjustment command.

[0457] In some embodiments, the implementation of step S4206 can refer to the implementation of step S2206, which will not be repeated here.

[0458] Step S4207: The SF transmits the transmit power adjustment command to the third node.

[0459] In some embodiments, the implementation of step S4207 can refer to the implementation of step S2207, which will not be repeated here.

[0460] Step S4208, the third node adjusts the transmission power.

[0461] In some embodiments, the implementation of step S4208 can refer to the implementation of step S2208, which will not be repeated here.

[0462] Step S4209, the third node transmits the sensing reference signal according to the adjusted transmission power.

[0463] The method related to the embodiments of the present disclosure can include at least one of steps S4201-S4209.

[0464] In some embodiments, any two steps of steps S4201-S4209 can exchange the order.

[0465] In some embodiments, any step of steps S4201-S4209 can be omitted.

[0466] FIG. 4c is an interaction schematic diagram of a sensing reference signal transmission method according to an embodiment of the present disclosure. As shown in FIG. 4c, the embodiments of the present disclosure relate to a sensing reference signal transmission method, and the above method comprises:

[0467] Step S4301, the third node transmits the sensing reference signal.

[0468] In some embodiments, the implementation of step S4301 can refer to the implementation of step S2101, which will not be repeated here.

[0469] Step S4302, the third node receives the sensing reference signal.

[0470] In some embodiments, the implementation of step S4302 can refer to the implementation of step S2102, which will not be repeated here.

[0471] Step S4303, the third node measures the received power.

[0472] In some embodiments, the implementation of step S4303 can refer to the implementation of step S2103, which will not be repeated here.

[0473] Step S4304, the third node determines the transmission power adjustment information.

[0474] In some embodiments, the implementation of step S4304 can refer to the implementation of step S2304, which will not be repeated here.

[0475] The third node adjusts the transmission power, in step S4305.

[0476] In some embodiments, the implementation of step S4305 can refer to the implementation of step S2308, which will not be repeated here.

[0477] The third node transmits the sensing reference signal according to the adjusted transmission power, in step S4306.

[0478] The method according to the embodiments of the present disclosure can include at least one of steps S4301-S4306.

[0479] In some embodiments, any two of steps S4301-S4306 can exchange the order.

[0480] In some embodiments, any of steps S4301-S4306 can be omitted.

[0481] FIG. 5a is a schematic diagram of a method for adjusting the transmission power of a sensing reference signal, according to an embodiment of the present disclosure, performed by an STN. As shown in FIG. 5a, the above method includes:

[0482] The STN transmits a sensing reference signal, in step S5101.

[0483] In some embodiments, the implementation of step S5101 can refer to the implementation of step S2101, which will not be repeated here.

[0484] The STN receives a transmission power adjustment command transmitted by the SF and / or the SRN, in step S5102.

[0485] In some embodiments, the implementation of step S5102 can refer to the implementation of step S2106, which will not be repeated here.

[0486] The STN adjusts the transmission power, in step S5103.

[0487] In some embodiments, the implementation of step S5103 can refer to the implementation of steps S2107, S2208, S2308, which will not be repeated here.

[0488] The STN transmits the sensing reference signal according to the adjusted transmission power, in step S5104.

[0489] The method according to the embodiments of the present disclosure can include at least one of steps S5101-S5104.

[0490] In some embodiments, any two of steps S5101-S5104 can exchange the order.

[0491] In some embodiments, any of steps S5101-S5104 can be omitted.

[0492] FIG. 5b is a schematic diagram illustrating a method of receiving a sensing reference signal, performed by an STN, according to embodiments of the present disclosure. As shown in FIG. 5b, the method includes:

[0493] In step S5201, the STN transmits a sensing reference signal.

[0494] In some embodiments, implementations of step S5201 can refer to implementations of step S2101, which are not repeated here.

[0495] In step S5202, the STN receives a reference signal transmitted by the SRN.

[0496] In some embodiments, implementations of step S5202 can refer to implementations of step S3103, which are not repeated here.

[0497] In step S5203, the STN receives indication information transmitted by the SF or the SRN.

[0498] In some embodiments, implementations of step S5203 can refer to implementations of step S3104, which are not repeated here.

[0499] In step S5204, the STN determines power loss.

[0500] In some embodiments, implementations of step S5204 can refer to implementations of step S3105, which are not repeated here.

[0501] In step S5205, the STN receives a transmission power adjustment command transmitted by the SF.

[0502] In some embodiments, implementations of step S5205 can refer to implementations of step S3206, which are not repeated here.

[0503] In step S5206, the STN adjusts transmission power.

[0504] In some embodiments, implementations of step S5206 can refer to implementations of steps S3106 and S3207, which are not repeated here.

[0505] In step S5207, the STN transmits a sensing reference signal according to the adjusted transmission power.

[0506] The method according to embodiments of the present disclosure can include at least one of steps S5201-S5207.

[0507] In some embodiments, any two of steps S5201-S5207 can exchange order.

[0508] In some embodiments, any of steps S5201-S5207 can be omitted.

[0509] FIG. 6a is a schematic diagram illustrating a method of receiving a sensing reference signal, performed by an SRN, according to embodiments of the present disclosure. As shown in FIG. 6a, the above method comprises:

[0510] Step S6101: The SRN receives a sensing reference signal.

[0511] In some embodiments, the implementation of step S6101 can refer to the implementation of step S2101, which will not be described here.

[0512] Step S6102: The SRN measures the received power.

[0513] In some embodiments, the implementation of step S6102 can refer to the implementation of step S2102, which will not be described here.

[0514] Step S6103: The SRN sends the reporting information to the SF.

[0515] In some embodiments, the implementation of step S6103 can refer to the implementation of step S2104, which will not be described here.

[0516] FIG. 6b is a schematic diagram illustrating a method of receiving a sensing reference signal, performed by an SRN, according to embodiments of the present disclosure. As shown in FIG. 6b, the above method comprises:

[0517] Step S6201: The SRN receives a sensing reference signal.

[0518] In some embodiments, the implementation of step S6201 can refer to the implementation of step S2101, which will not be described here.

[0519] Step S6202: The SRN measures the received power.

[0520] In some embodiments, the implementation of step S6202 can refer to the implementation of step S2102, which will not be described here.

[0521] Step S6203: The SRN receives the indication information sent by the SF.

[0522] In some embodiments, the implementation of step S6203 can refer to the implementation of step S2204, which will not be described here.

[0523] Step S6204: The SRN sends at least one path received power to the SF.

[0524] In some embodiments, the implementation of step S6204 can refer to the implementation of step S2205, which will not be described here.

[0525] FIG. 6c is a schematic diagram of a method of receiving a sensing reference signal, performed by an SRN, according to embodiments of the present disclosure. As shown in FIG. 6c, the above method comprises:

[0526] Step S6301: The SRN receives a sensing reference signal.

[0527] In some embodiments, the implementation of step S6301 can refer to the implementation of step S2101, which will not be described here.

[0528] Step S6302: The SRN measures a received power.

[0529] In some embodiments, the implementation of step S6202 can refer to the implementation of step S2102, which will not be described here.

[0530] Step S6303: The SRN determines a transmit power adjustment command.

[0531] In some embodiments, the implementation of step S6303 can refer to the implementation of step S2304, which will not be described here.

[0532] Step S6304: The SRN sends the transmit power adjustment command to the SF or the STN.

[0533] In some embodiments, the implementation of step S6304 can refer to the implementation of steps S2305, S2307, which will not be described here.

[0534] FIG. 6d is a schematic diagram of a method of receiving a sensing reference signal, performed by an SRN, according to embodiments of the present disclosure. As shown in FIG. 6d, the above method comprises:

[0535] Step S6401: The SRN receives a sensing reference signal.

[0536] In some embodiments, the implementation of step S6301 can refer to the implementation of step S2101, which will not be described here.

[0537] Step S6402: The SRN measures a received power.

[0538] In some embodiments, the implementation of step S6202 can refer to the implementation of step S2102, which will not be described here.

[0539] Step S6403. The SRN sends a reference signal to the STN.

[0540] In some embodiments, the implementation of step S6403 can refer to the implementation of step S3103, which will not be described here.

[0541] Step S6404. The SRN sends indication information to the STN.

[0542] In some embodiments, the implementation of step S6404 can refer to the implementation of step S3104, which will not be described here.

[0543] FIG. 7a is a schematic diagram of a method of receiving a sensing reference signal, corresponding to FIG. 4a, according to an embodiment of the present disclosure, performed by a third node. As shown in FIG. 7a, the above method comprises:

[0544] Step S7101. The third node transmits a sensing reference signal.

[0545] In some embodiments, the implementation of step S7101 can refer to the implementation of step S2101, which will not be described here.

[0546] Step S7102. The third node receives a sensing reference signal.

[0547] In some embodiments, the implementation of step S7102 can refer to the implementation of step S2102, which will not be described here.

[0548] Step S7103. The third node measures the received power.

[0549] In some embodiments, the implementation of step S7103 can refer to the implementation of step S2103, which will not be described here.

[0550] Step S7104. The third node sends reporting information to the SF.

[0551] In some embodiments, the implementation of step S7103 can refer to the implementation of step S4104, which will not be described here.

[0552] Step S7105. The third node receives a transmit power adjustment command sent by the SF.

[0553] In some embodiments, the implementation of step S7105 can refer to the implementation of step S3206, which will not be described here.

[0554] Step S7106. The third node adjusts the transmit power.

[0555] In some embodiments, the implementation of step S7106 can refer to the implementation of steps S2107, S2208, S2308, which will not be repeated here.

[0556] Step S7107. The third node transmits the sensing reference signal according to the adjusted transmission power.

[0557] The method related to the embodiments of the present disclosure can include at least one of steps S7101-S7107.

[0558] In some embodiments, any two steps of steps S7101-S7107 can exchange the order.

[0559] In some embodiments, any step of steps S7101-S7107 can be omitted.

[0560] FIG. 7b is a schematic diagram of a method of receiving a sensing reference signal, corresponding to FIG. 4b, according to an embodiment of the present disclosure, executed by a third node. As shown in FIG. 7b, the above method includes:

[0561] Step S7201. The third node transmits the sensing reference signal.

[0562] In some embodiments, the implementation of step S7201 can refer to the implementation of step S2101, which will not be repeated here.

[0563] Step S7202. The third node receives the sensing reference signal.

[0564] In some embodiments, the implementation of step S7202 can refer to the implementation of step S2102, which will not be repeated here.

[0565] Step S7203. The third node measures the received power.

[0566] In some embodiments, the implementation of step S7203 can refer to the implementation of step S2103, which will not be repeated here.

[0567] Step S7204. The third node receives the indication information transmitted by the SF.

[0568] In some embodiments, the implementation of step S7204 can refer to the implementation of step S2204, which will not be repeated here.

[0569] Step S7205. The third node transmits at least one path received power to the SF.

[0570] In some embodiments, the implementation of step S7205 can refer to the implementation of step S2205, which will not be repeated here.

[0571] Step S7206, the third node receives the transmit power adjustment command sent by the SF.

[0572] In some embodiments, the implementation of step S7206 can refer to the implementation of step S2207, which will not be repeated here.

[0573] Step S7207, the third node adjusts the transmit power.

[0574] In some embodiments, the implementation of step S7207 can refer to the implementation of step S2208, which will not be repeated here.

[0575] Step S7208, the third node sends the sensing reference signal according to the adjusted transmit power.

[0576] In some embodiments, the implementation of step S7208 can refer to the implementation of step S2209, which will not be repeated here.

[0577] The method related to the embodiments of the present disclosure can include at least one of steps S7201-S7208.

[0578] In some embodiments, any two steps of steps S7201-S7208 can exchange order.

[0579] In some embodiments, any step of steps S7201-S7208 can be omitted.

[0580] FIG. 7c is a schematic diagram of a method of receiving a sensing reference signal, corresponding to FIG. 4c, performed by a third node, according to an embodiment of the present disclosure. The content is the same as that of FIG. 4c, which will not be repeated here.

[0581] FIG. 8 is a schematic diagram of a method of receiving a sensing reference signal, corresponding to FIG. 8, performed by an SF, according to an embodiment of the present disclosure. As shown in FIG. 8, the above-mentioned method includes:

[0582] Step S8101, the SF receives the report information sent by the SRN or the third node.

[0583] In some embodiments, the implementation of step S8101 can refer to the implementation of steps S2104, S4104, which will not be repeated here.

[0584] Step S8102, the SF sends indication information to the SRN.

[0585] In some embodiments, the implementation of step S8102 can refer to the implementation of step S2204, which will not be repeated here.

[0586] Step S8103: The SF receives at least one path received power sent by the SRN or the third node.

[0587] In some embodiments, the implementation of step S8103 can refer to the implementation of step S2205 or S4205, which will not be repeated here.

[0588] Step S8104: The SF determines a transmission power adjustment command.

[0589] In some embodiments, the implementation of step S8104 can refer to the implementation of step S2105, which will not be repeated here.

[0590] Step S8105: The SF receives a transmission power adjustment command sent by the SRN.

[0591] In some embodiments, the implementation of step S8105 can refer to the implementation of step S2305, which will not be repeated here.

[0592] Step S8106: The SF sends the transmission power adjustment command to the STN.

[0593] The method according to the embodiments of the present disclosure can include at least one of steps S8101-S8106.

[0594] In some embodiments, any two of steps S8101-S8106 can exchange the order.

[0595] In some embodiments, any of steps S8101-S8106 can be omitted.

[0596] The embodiments of the present disclosure provide a method for adjusting the transmission power of a sensing reference signal. Without relying on other reference signals, the STN determines the sensing RS transmission power in the following manner:

[0597] Step 1: Determine the initial transmission power.

[0598] The initial transmission power of the sensing RS is a predetermined value, which can be configured by the SF or defined by the protocol.

[0599] A more reasonable way is to configure it by the SF, because the network knows the location of the Tx, the surrounding environment, the detection range, etc., and can obtain a reasonable range of initial power values based on this information.

[0600] The initial transmission power can also be defined by the protocol. For example, the protocol defines the maximum value of the sensing RS transmission power, and the initial power can be the maximum value. If no subsequent power adjustment is performed, the initial transmission power can be used for transmission at all times, i.e., no power control is performed.

[0601] Step 1, adjust the transmit power.

[0602] SRN receives the reflected Sensing RS, measures the received power of each path of the received signal (received power of the i-th path P Rx-iPath In theory, the power adjustment value of STN should be determined according to one or more paths reflected by SO. The possible cases are as follows:

[0603] (a) SRN reports the measured received power of multiple paths to the processing node, such as SF, and SF determines which one or more paths correspond to the reflected path of SO, and determines whether to increase, decrease or maintain the transmit power of Sensing RS according to the received power of these paths. SF can send a power adjustment command to STN to increase, decrease or maintain the transmit power of Sensing RS. SF can also indicate the value of the transmit power of Sensing RS sent by STN.

[0604] SF can indicate which path's received power should be reported by SRN. And configure the number of paths reporting path power.

[0605] For example:

[0606] (1) One or more paths with path delay less than a first delay threshold. For the path with too large delay, the power is generally too low, which is not conducive to signal measurement and processing by Rx Node, SF, etc.

[0607] (2) One or more paths with path delay in a second delay range. This case generally corresponds to the case where SF has obtained the approximate position of SO (for example, SF has previously positioned SO, and the approximate position of SO can be inferred through some known information). SF can configure the second delay range for SRN.

[0608] (3) One or more paths with angle of arrival (AOA) in a first AOA range. This case generally corresponds to the case where SF has obtained the approximate position of SO (for example, SF has previously positioned SO, and the approximate position of SO can be inferred through some known information), and SF can configure the first AOA range for SRN.

[0609] (b) If SRN can determine by itself which one or more paths of SO are reflected, it can also not report SF, and determine by itself whether to increase, decrease or maintain the transmit power of Sensing RS according to the received power of the one or more paths.

[0610] The above power control mode is applicable to mono-static (STN and SRN are the same node) and bi-static (STN and SRN are not the same node). Mode (b) is not applicable to bi-static.

[0611] The embodiment of the present disclosure provides a method for adjusting the transmission power of a sensing reference signal. For the Bi-static Mode, a power control scheme can be considered according to a reference signal (referred to as a power loss reference signal, PL-RS) to obtain the power loss of each path. The STN determines the sensing RS transmission power in the following manner:

[0612] Step 1: The STN needs to receive a reference signal transmitted by the SRN, which is used to estimate the power loss of multiple paths. The power loss of a certain path can be understood as the transmission power minus the received power of the path, and the power loss of multiple paths can be understood as the transmission power minus the sum of the received powers of the multiple paths.

[0613] Step 2: The STN determines the transmission power of the sensing RS according to the estimated power loss.

[0614] For different STN / SRN combinations, the PL-RS can be:

[0615] a) STN / SRN = BS / UE: uplink pilot transmitted by the UE.

[0616] b) STN / SRN = UE / BS: downlink pilot transmitted by the BS.

[0617] c) STN / SRN = UE A / UE B: uplink pilot transmitted by the UE B. The UE A needs to obtain the time-frequency position information of the uplink pilot of the UE B (if the UE A / B is in the same cell, the UE A needs to know the TA information of the UE B; if the UE A / B is not in the same cell, the UE A needs to know the synchronization time gap between the base station where the UE B is located and the base station where the UE A is located, and needs to know the TA information of the UE B) to accurately receive the uplink pilot.

[0618] d) STN / SRN = BS A / BS B: downlink pilot transmitted by the BS B. The BS A needs to obtain the time-frequency position information of the downlink pilot of the BS B to accurately receive the uplink pilot. The BS A and the BS B need to be synchronized, or the synchronization time gap between them needs to be known.

[0619] 2. In all the above cases, the beam direction of the PL-RS transmitted by the SRN needs to have a corresponding relationship with the beam direction of the sensing RS transmitted by the STX. The SF can configure the STX with the corresponding relationship between the sensing RS and the PL-RS (e.g. configure a PL-RS / sensing RS pair). The STX determines, according to the corresponding relationship, which PL-RS should be measured to obtain the power loss estimate when transmitting a certain configured sensing RS.

[0620] 3. The STX obtains the power loss estimate according to the received power of one or more paths in the PL-RS, and determines the transmit power of the sensing RS according to the power loss. In theory, the one or more paths should correspond to the one or more paths reflected by the SO to the STN, and the greater the power loss, the greater the transmit power of the sensing RS should be. The SF can indicate to the STN which one or more paths the one or more paths correspond to, and the indication can be as shown in mono-static 2-(a).

[0621] In step 2, when the STN determines the transmit power according to the power loss, the STN can further determine the transmit power of the sensing RS according to a power adjustment command from the SRN / SF. The SRN / SF can generate the power adjustment command according to the received power of the sensing RS or the power of part of the paths in the sensing RS.

[0622] Embodiments of the present disclosure further propose apparatuses for implementing any of the above methods, for example, an apparatus comprising units or modules for implementing the steps performed by a terminal in any of the above methods. For another example, another apparatus is proposed, comprising units or modules for implementing the steps performed by a network device (e.g. an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0623] It should be understood that the division of each unit or module in the above apparatus is only a logical function division, and all or part of them can be integrated into a physical entity or physically separated in actual implementation. In addition, the units or modules in the apparatus can be implemented in the form of processor calling software: for example, the apparatus includes a processor, the processor is connected with a memory, the memory stores instructions, and the processor calls the instructions stored in the memory to realize the functions of any of the above methods or the units or modules of the above apparatus, wherein the processor is a general processor such as a central processing unit (CPU) or a microprocessor, and the memory is a memory in the apparatus or a memory outside the apparatus. Alternatively, the units or modules in the apparatus can be implemented in the form of hardware circuit, and the functions of part or all of the units or modules can be realized by the design of the hardware circuit. The above hardware circuit can be understood as one or more processors; for example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of part or all of the units or modules are realized by the design of the logical relationship between the elements in the circuit; for another example, in another implementation, the above hardware circuit is a programmable logic device (PLD), and a field programmable gate array (FPGA) is taken as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of part or all of the units or modules. All units or modules of the above apparatus can be all implemented in the form of processor calling software, or all implemented in the form of hardware circuit, or part implemented in the form of processor calling software and the remaining part implemented in the form of hardware circuit.

[0624] In the embodiments of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), and the like. In another implementation, the processor can implement certain functions through a logical relationship of hardware circuit, and the logical relationship of the hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads a configuration document to implement the configuration of the hardware circuit. It can be understood that the processor loads instructions to implement the functions of the above part or all units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), and the like.

[0625] FIG. 9a is a structural schematic diagram of a first node according to an embodiment of the present disclosure. As shown in FIG. 9a, the first node 9100 can include at least one of a transceiver module 9101, a processing module 9102, and the like. In some embodiments, the transceiver module 9101 is configured to determine transmit power adjustment information, and adjust a transmit power according to the transmit power adjustment information. The processing module 9102 is configured to transmit a first sensing reference signal according to the adjusted transmit power.

[0626] Optionally, the transceiver module 9101 is configured to perform at least one of the communication steps, such as transmitting and / or receiving, performed by the first node in any of the above methods, details of which are not described herein. Optionally, the processing module 9102 is configured to perform at least one of the other steps performed by the first node in any of the above methods, details of which are not described herein.

[0627] FIG. 9b is a structural diagram of the first node according to an embodiment of the present disclosure. As shown in FIG. 9b, the second node 9200 can include at least one of a transceiver module 9201, a processing module 9202, etc. In some embodiments, the transceiver module 9201 is configured to receive the sensing reference signal, and transmit the sensing reference signal to the target SO according to the adjusted transmit power; the processing module 9202 is configured to determine the transmit power adjustment information, and adjust the transmit power according to the transmit power adjustment information, and measure one or more path received powers of the sensing reference signal, the one or more paths including at least one path reflected by the target SO.

[0628] Optionally, the transceiver module 9201 described above is configured to perform at least one of the communication steps, such as transmission and / or reception, performed by the second node in any of the methods described above, details of which are not described herein again. Optionally, the processing module 9202 described above is configured to perform at least one of the other steps performed by the second node in any of the methods described above, details of which are not described herein again.

[0629] FIG. 9c is a structural diagram of the first node according to an embodiment of the present disclosure. As shown in FIG. 9c, the third node 9300 can include at least one of a transceiver module 9301, a processing module 9302, etc. In some embodiments, the transceiver module 9301 is configured to receive the sensing reference signal, and transmit the sensing reference signal to the target SO according to the adjusted transmit power; the processing module 9302 is configured to determine the transmit power adjustment information, and adjust the transmit power according to the transmit power adjustment information, and measure one or more path received powers of the sensing reference signal, the one or more paths including at least one path reflected by the target SO.

[0630] Optionally, the transceiver module 9101 described above is configured to perform at least one of the communication steps, such as transmission and / or reception, performed by the third node in any of the methods described above, details of which are not described herein again. Optionally, the processing module 9102 described above is configured to perform at least one of the other steps performed by the third node in any of the methods described above, details of which are not described herein again.

[0631] FIG. 9d is a structural diagram of the first node according to an embodiment of the present disclosure. As shown in FIG. 9d, the SF 9400 can include a transceiver module 9401. In some embodiments, the transceiver module 9401 is configured to transmit a transmit power adjustment command to the first node or the third node, where the transmit power adjustment command is used by the first node to adjust the transmit power for transmitting the sensing reference signal.

[0632] Optionally, the transceiver module 9401 described above is configured to perform at least one of the communication steps, such as transmission and / or reception, performed by the SF in any of the methods described above, details of which are not described herein again.

[0633] In some embodiments, the transceiving module can include a transmitting module and / or a receiving module, which can be separate or integrated together. Optionally, the transceiving module can be mutually replaced with a transceiver.

[0634] In some embodiments, the processing module can be one module or include multiple sub-modules. Optionally, the multiple sub-modules perform all or part of the steps required to be performed by the processing module. Optionally, the processing module can be mutually replaced with a processor.

[0635] FIG. 10a is one of the schematic diagrams of a communication device 10100 according to embodiments of the present disclosure. The communication device 10100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor supporting the network device to implement any of the above methods, or a chip, a chip system, or a processor supporting the terminal to implement any of the above methods. The communication device 10100 can be used to implement the methods described in the above method embodiments, and specific reference can be made to the descriptions in the above method embodiments.

[0636] As shown in FIG. 10a, the communication device 10100 includes one or more processors 10101. The processor 10101 can be a general purpose processor or a special purpose processor, etc., such as 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., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process data of the programs. Optionally, the communication device 10100 is configured to execute any of the above methods. Optionally, the one or more processors 10101 are configured to invoke instructions to cause the communication device 10100 to execute any of the above methods.

[0637] In some embodiments, the communication device 10100 further includes one or more transceivers 10102. When the communication device 10100 includes one or more transceivers 10102, the transceiver 10102 performs at least one of the communication steps such as transmitting and / or receiving in the above methods, and the processor 10101 performs at least one of the other steps. In optional embodiments, the transceiver can include a receiver and / or a transmitter, which can be separate or integrated together. Optionally, the terms of transceiver, transceiving unit, transceiver, transceiving circuit, interface circuit, interface, etc. can be mutually replaced, and the terms of transmitter, transmitting unit, transmitter, transmitting circuit, etc. can be mutually replaced, and the terms of receiver, receiving unit, receiver, receiving circuit, etc. can be mutually replaced.

[0638] In some embodiments, the communication device 10100 also includes one or more memories 10103 for storing data. Optionally, all or a portion of the memory 10103 can also reside in the communication device 10100. In some embodiments, the communication device 10100 can include one or more interface circuits 10104. Optionally, the interface circuit 10104 can be used to receive data from the memory 10103 or from another device or system, or to send data to the memory 10103 or to another device or system. For example, the interface circuit 10104 can receive data in packets, each packet having a header and a payload.

[0639] The communication device 10100 described in the above embodiments can be a network device or a terminal, but the scope of the communication device 10100 described in the present disclosure is not limited thereto, and the structure of the communication device 10100 can not be limited by FIG. 10a. The communication device can be a standalone device or can be part of a larger device. For example, the communication device can be: (1) a standalone integrated circuit (IC), or a chip, or a chip system or subsystem; (2) a set of one or more ICs, which can optionally include a storage component for storing data, programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, a smart terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) other devices, etc.

[0640] FIG. 10b is a schematic diagram of the communication device 10100 according to an embodiment of the present disclosure. For the case where the communication device 10100 is a chip or a chip system, the structure of the chip 10200 can be as shown in FIG. 10b, but is not limited thereto.

[0641] The chip 10200 includes one or more processors 10201. The chip 10200 is configured to perform any of the above methods.

[0642] In some embodiments, chip 10200 also includes one or more interface circuits 10202. Optionally, the interface circuits, interface, transceiver pins, etc. can be replaced by one another. In some embodiments, chip 10200 also includes one or more memories 10203 for storing data. Optionally, all or some of the memories 10203 can be external to chip 10200. Optionally, interface circuits 10202 are connected with the memories 10203, and the interface circuits 10202 can be configured to receive data from the memories 10203 or other devices, and the interface circuits 10202 can be configured to send data to the memories 10203 or other devices. For example, the interface circuits 10202 can read data stored in the memories 10203 and send the data to the processor 10201.

[0643] In some embodiments, the interface circuits 10202 perform at least one of the communication steps of sending and / or receiving in the above-described methods. The interface circuits 10202 performing the communication steps of sending and / or receiving in the above-described methods, for example, means that the interface circuits 10202 perform data interaction between the processor 10201, the chip 10200, the memories 10203, or the transceiver devices. In some embodiments, the processor 10201 performs at least one of the other steps.

[0644] The modules and / or devices described in each of the embodiments of the virtual device, the physical device, the chip, etc. can be combined or separated according to circumstances. Optionally, part or all of the steps can also be performed by multiple modules and / or devices in cooperation, which is not limited here.

[0645] The disclosure also proposes a storage medium, and the above-mentioned storage medium stores instructions, when the above-mentioned instructions run on the communication device 10100, the communication device 10100 performs any one of the above methods. Optionally, the above-mentioned storage medium is an electronic storage medium. Optionally, the above-mentioned storage medium is a computer-readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices. Optionally, the above-mentioned storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a transitory storage medium.

[0646] The disclosure also proposes a program product, and the above-mentioned program product is executed by the communication device 7100, so that the communication device 7100 performs any one of the above methods. Optionally, the above-mentioned program product is a computer program product.

[0647] The disclosure also proposes a computer program, when it runs on a computer, so that the computer performs any one of the above methods. Industrial applicability

[0648] The perception reference signal is transmitted in different types of modes, and reasonable transmission power is used, so that the transmission efficiency and transmission effectiveness are improved.

Claims

1. A method for transmitting a sensing reference signal, performed by a first node, comprising: determining transmit power adjustment information; adjusting a transmit power according to the transmit power adjustment information; and transmitting a sensing reference signal according to the adjusted transmit power. The determining the transmit power adjustment information comprises: receiving a transmit power adjustment command sent by a sensing function entity (SF) or a second node; and determining the transmit power adjustment information according to the transmit power adjustment command. The determining the transmit power adjustment information comprises: receiving a reference signal sent by a second node; determining a power loss according to the reference signal; and determining the transmit power adjustment information according to the power loss. The reference signal and the sensing reference signal have a corresponding relationship in terms of beam direction. The determining the power loss according to the reference signal comprises: determining the power loss according to a received power of at least one path of the reference signal. 6.The method of claim 5, wherein the at least one path corresponds to a path of the SO reflection. The method further comprises: receiving first indication information sent by the SF or the second node, the first indication information being used to indicate at least one path in the reference signal. 8.A method for receiving a sensing reference signal, performed by a second node, comprising: receiving a sensing reference signal; and measuring one or more path received powers of the sensing reference signal, the one or more paths at least including at least one path of a sensing target (SO) reflection. The method further comprises: sending reporting information to a sensing function entity (SF), the reporting information being used to indicate the one or more path received powers of the sensing reference signal.

2. The method of claim 1, wherein, The method further comprises: receiving second indication information sent by the SF, the second indication information being used to indicate at least one path of the sensing reference signal, the at least one path being a path of the SO reflection, or the at least one path being a path satisfying a first condition; and sending a path received power of the at least one path in the sensing reference signal to the SF. The method further comprises: receiving third indication information sent by the SF, the third indication information being used to indicate the first condition, or being used to indicate the first condition and a first number; and sending a path received power of a path satisfying the first condition in the sensing reference signal to the SF, or sending a path received power of a path satisfying the first condition and not exceeding the first number in the sensing reference signal to the SF. 12.The method of claim 11, wherein the third indication information comprises a time delay threshold parameter, and the first condition is that a time delay of a path is less than the time delay threshold parameter; or the third indication information comprises a time delay range parameter, and the first condition is that a time delay of a path is within the time delay range parameter; or the third indication information comprises an angle of arrival range parameter, and the first condition is that an angle of arrival of a path is within the angle of arrival range parameter; or the third indication information comprises an index threshold parameter, and the first condition is that an index of a path is less than the index threshold parameter; or 3. The method of claim 1, wherein, ​ ​ ​ ​ 4. The method of claim 3, wherein, ​ ​ ​ 5. The method of claim 3, wherein, ​ ​ ​ ​ 7. The method of claim 5, wherein, ​ ​ ​ ​ ​ 9. The method of claim 8, wherein, ​ ​ 10. The method of claim 9, wherein, ​ ​ ​ 11. The method of claim 9, wherein, ​ ​ ​ ​ ​ ​ ​ ​ The third indication information includes an index range parameter, and the first condition is that the index of the path is within the index range.

13. The method of claim 8, wherein, The method further includes: determining at least one path, the at least one path being a path reflected by the SO, or the at least one path being a path meeting a first condition; determining, according to path reception power of the at least one path, a transmission power adjustment command for the first node to adjust a transmission power for transmitting a sensing reference signal, and sending the transmission power adjustment command to the first node or the SF.

14. The method of claim 8, wherein, The method further includes: sending a reference signal to the first node, the reference signal being used by the first node to determine power loss of the reference signal.

15. The method of claim 14, wherein, The following two beam directions have a corresponding relationship: a beam direction of the reference signal; and a beam direction of a sensing reference signal transmitted by the first node.

16. A method for transmitting and receiving a sensing reference signal, performed by a third node, comprising: receiving a sensing reference signal; measuring one or more path reception powers of the sensing reference signal, the one or more paths including at least one path reflected by a sensing target SO; determining transmission power adjustment information; adjusting a transmission power according to the transmission power adjustment information; transmitting the sensing reference signal according to the adjusted transmission power.

17. The method of claim 16, wherein, The determination of the transmission power adjustment information includes: determining the transmission power adjustment information according to at least one path reception power of the sensing reference signal.

18. The method of claim 16 or 17, wherein, sending reporting information to a sensing function entity SF, the reporting information being used to indicate the one or more path reception powers of the sensing reference signal.

19. The method of any one of claims 16 to 18, wherein, The method further includes: receiving second indication information sent by the SF, the second indication information being used to indicate at least one path in the received sensing reference signal, the at least one path being a path reflected by the SO, or the at least one path being a path meeting a first condition; sending, to the SF, path reception power of the at least one path in the sensing reference signal.

20. The method of any one of claims 16 to 18, wherein, The method further includes: receiving third indication information sent by the SF, the third indication information being used to indicate a first condition, or being used to indicate a first condition and a first number; sending, to the SF, path reception power of a path meeting the first condition in the sensing reference signal, or sending, to the SF, path reception power of a path meeting the first condition and not exceeding the first number in the sensing reference signal.

21. The method of claim 16, wherein, The determination of the transmission power adjustment information includes: receiving a transmission power adjustment command sent by a sensing function entity SF; determining the transmission power adjustment information according to the transmission power adjustment command.

22. A management method, performed by a sensing function entity SF, comprising: sending a transmission power adjustment command to a first node or a third node, wherein the transmission power adjustment command is used by the first node to adjust a transmission power for transmitting a sensing reference signal.

23. The method of claim 22, wherein, The method further includes: receiving reporting information sent by a second node or a third node, the reporting information being used to indicate one or more path reception powers of the sensing reference signal.

24. The method of claim 23, wherein, The method further includes: determine the transmit power adjustment command according to the path received power of the sensing reference signal.

25. The method of claim 24, wherein, The determining the transmit power adjustment command according to the received power of the sensing reference signal comprises: determining at least one path of the sensing reference signal, the at least one path being a path reflected by the SO, or the at least one path being a path satisfying a first condition; determining the transmit power adjustment command and the sensing reference signal adjustment command according to the path received power of the at least one path of the sensing reference signal.

26. The method of claim 24, wherein, The method further comprises: sending, to a second node or a third node, third indication information, the first indication information being used to indicate at least one path of the sensing reference signal, the at least one path being a path reflected by the SO, or the at least one path being a path satisfying a first condition.

27. The method of claim 24, wherein, The method further comprises: sending, to a second node or a third node, fourth indication information, the fourth indication information being used to indicate the first condition, or being used to indicate the first condition and a first number.

28. The method of claim 24, wherein, The method further comprises: sending, to a second node or a third node, first indication information, the first indication information being used to indicate at least one path in a reference signal sent by the second node or the third node.

29. The method of claim 28, wherein, The at least one path corresponds to a path reflected by the SO. 30.A first node, comprising: a processing module configured to determine transmit power adjustment information, and adjust transmit power according to the transmit power adjustment information; a transceiver module configured to transmit a first sensing reference signal according to the adjusted transmit power. 31.A second node, comprising: a transceiver module configured to receive a sensing reference signal; a processing module configured to measure one or more path received powers of the sensing reference signal, the one or more paths at least including at least one path reflected by a sensed target SO. 32.A third node, comprising: a processing module configured to determine transmit power adjustment information; and further configured to adjust transmit power according to the transmit power adjustment information; and further configured to measure one or more path received powers of the sensing reference signal, the one or more paths at least including at least one path reflected by a sensed target SO. a transceiver module configured to receive a sensing reference signal; and further configured to transmit the sensing reference signal to a measured target SO according to the adjusted transmit power. 33.A sensing function entity (SF), comprising: a transceiver module configured to transmit a transmit power adjustment command to a first node or a third node, wherein the transmit power adjustment command is used for the first node to adjust transmit power used for transmitting a sensing reference signal. 34.A first node, comprising: one or more processors; wherein the first node is configured to implement the method of any one of claims 1 to 7. 35.A second node, comprising: one or more processors; wherein the first node is configured to implement the method of any one of claims 8 to 15. 36.A third node, comprising: one or more processors; wherein the first node is configured to implement the method of any one of claims 16 to 21. 37.A sensing function entity (SF), comprising: one or more processors; The first node is configured to implement the method of any one of claims 22-29.

38. A communication system comprising a terminal and a network device, wherein, the terminal comprises the first node of claim 34, and the network device comprises the second node of claim 35; or, the terminal comprises the second node of claim 35, and the network device comprises the first node of claim 34; or, the terminal comprises the third node of claim 36; or, the network device comprises the third node of claim 36.

39. A storage medium having stored instructions, wherein, when the instructions are run on a communication device, the communication device is caused to perform the method of any one of claims 1-7, or the method of any one of claims 8-15, or the method of any one of claims 16-21, or the method of any one of claims 22-29.

40. A program product, wherein, when the program product is executed by a communication device, the communication device is caused to perform the method of any one of claims 1-7, or the method of any one of claims 8-15, or the method of any one of claims 16-21, or the method of any one of claims 22-29. ​

Images