Communication method and apparatus

Abstract

This application provides a communication method and apparatus. The method includes: receiving first indication information, the first indication information including access backhaul integrated IAB sensing mode information, the IAB sensing mode information being used to indicate the IAB sensing mode; sending first information, the first information including the IAB sensing mode information. This application utilizes a flag bit designed to indicate the IAB sensing mode, and proposes a method for sensing and measuring between network devices with IAB functionality under different IAB sensing modes via an IAB link. This enables bi-base sensing between network devices with IAB functionality, facilitating collaborative sensing between these devices. Simultaneously, it allows the network to flexibly select network devices with IAB functionality and IAB sensing methods providing sensing services on the IAB link, improving the user experience.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a communication method and apparatus. Background Technology

[0002] Sensing technology refers to the technology of collecting and processing environmental information through sensors or other devices, enabling systems to understand, analyze, and respond to the external environment. The wide range of applications of sensing technology covers multiple fields, such as autonomous driving and smart cities. With the continuous development of communication technology, sensing technology is increasingly merging with mobile communication systems, enabling these systems to provide sensing services to users.

[0003] Common sensing modes can be broadly categorized into single-base sensing and dual-base sensing. Single-base sensing, also known as self-transmitting and self-receiving sensing, involves the transmitter and receiver being in the same location. Dual-base sensing, on the other hand, involves self-transmitting and other-receiving sensing, where the transmitter and receiver are in different locations. In dual-base sensing, both the transmitter and receiver are network devices with Integrated Access and Backhaul (IAB) links. Defining dual-base sensing between network devices with IAB functionality is a technical problem currently being addressed by those skilled in the art. Summary of the Invention

[0004] This application proposes a communication method and apparatus, designs a flag bit for indicating IAB sensing mode, and proposes a method for sensing and measuring between network devices with IAB functionality under different IAB sensing modes through an IAB link. This realizes bi-base sensing between network devices with IAB functionality, which is beneficial for collaborative sensing between network devices with IAB functionality. At the same time, it enables the network to flexibly select network devices with IAB functionality and IAB sensing methods that provide sensing services on the IAB link, thereby improving the user experience.

[0005] In a first aspect, embodiments of this application provide a communication method applicable to a first node. This method can be executed by the first node, by components within the first node (e.g., processors, chips, circuits, or chip systems), or by a logic module or software capable of implementing all or part of the functions of the first node. The method includes: receiving first indication information, the first indication information including access backhaul integrated IAB sensing mode information, the IAB sensing mode information being used to indicate an IAB sensing mode; and sending first information, the first information including the IAB sensing mode information.

[0006] For example, the first indication information may further include at least one of the following: identification information of a first node, or identification information of a second node, wherein the node identification information included in the first indication information is used to indicate the node that needs to participate in the IAB sensing service, or the node that the first network element schedules to participate in the IAB sensing service. Wherein, when the IAB sensing mode information in the first indication information indicates that the IAB sensing mode is IAB-side dual-base sensing, the first indication information may further include identification information of a third node, which is used to indicate the node that needs to participate in the IAB sensing service.

[0007] For example, the IAB sensing mode includes the sensing mode between nodes with IAB functionality. Optionally, this IAB sensing mode information may be referred to as an IAB sensing mode indicator or a sensing mode indicator flag.

[0008] In the above method, the first node sends first information to other nodes according to the IAB sensing mode indicated by the IAB sensing mode information, thereby notifying other nodes to cooperate in completing IAB sensing measurement, and thus realizing bi-base sensing among network devices with IAB function, which is beneficial to collaborative sensing among network devices with IAB function.

[0009] In one possible implementation, the method further includes: receiving first sensing mode type information, the first sensing mode type information being used to indicate network device-to-network device bipolar sensing; and determining, based on the first sensing mode type information, that the IAB sensing mode information is available.

[0010] Optionally, the perception mode type information can be called a perception mode indicator or a perception mode indicator flag.

[0011] Optionally, determining that IAB sensing mode information is available can be replaced by describing it as determining that IAB sensing mode information is enabled, or it can also be described as determining that IAB sensing mode information is valid, or it can also be described as enabling IAB sensing mode information.

[0012] In the above method, the constraint relationship between the sensing mode type information and the IAB sensing mode information is used to determine that the current sensing mode is network device to network device bi-base sensing through the first sensing mode type information, and then the IAB sensing mode information is enabled. Conversely, when it is determined that the current sensing mode is not network device to network device bi-base sensing, the IAB sensing mode information cannot be enabled, which is beneficial for the subsequent network devices to normally realize bi-base sensing through the IAB link.

[0013] In another possible implementation, the first information also includes the first perception mode type information.

[0014] In the above method, the first node determines the preconditions for executing subsequent steps by including the first sensing mode type information in the first information. That is, only when the sensing mode is network device to network device bi-base sensing can the subsequent bi-base sensing between network devices with IAB function be defined, which is conducive to ensuring the normal operation of subsequent bi-base sensing.

[0015] In another possible implementation, when the IAB sensing mode information is in the first state, the IAB sensing mode information indicates that the IAB sensing mode is IAB downlink bibase sensing.

[0016] In the above method, it is defined that when the IAB sensing mode information is in the first state, the IAB sensing mode indicates that the IAB sensing mode is IAB downlink bi-base sensing, thus improving the IAB sensing process.

[0017] In another possible implementation, the first information further includes resource configuration information of the sensing measurement signal, and the method further includes: sending the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal.

[0018] The above method provides a method for configuring and transmitting IAB sensing measurement signals when the IAB sensing mode is IAB downlink bibase sensing, which improves the IAB sensing process and realizes bibase sensing between network devices with IAB function. This enables the network to flexibly select network devices with IAB function and IAB sensing methods that provide sensing services on the IAB link.

[0019] In another possible implementation, when the IAB sensing mode information is in the second state, the IAB sensing mode information indicates that the IAB sensing mode is IAB uplink bibase sensing.

[0020] In the above method, it is defined that when the IAB sensing mode information is in the second state, the IAB sensing mode indicates that the IAB sensing mode is IAB uplink bi-base sensing, thus improving the IAB sensing process.

[0021] In another possible implementation, the first information further includes resource configuration information of the sensing measurement signal, and the method further includes: receiving the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal; and performing sensing measurement based on the IAB sensing measurement signal to determine the IAB sensing result.

[0022] The above method provides a method for configuring, receiving, and measuring IAB sensing measurement signals when the IAB sensing mode is IAB uplink bibase sensing. This improves the IAB sensing process and enables bibase sensing between network devices with IAB functionality. This allows the network to flexibly select network devices with IAB functionality and IAB sensing methods that provide sensing services on the IAB link.

[0023] In another possible implementation, when the IAB sensing mode information is in the third state, the IAB sensing mode information indicates that the IAB sensing mode is IAB lateral bibase sensing.

[0024] In the above method, it is defined that when the IAB sensing mode information is in the third state, the IAB sensing mode indicates that the IAB sensing mode is IAB side-mounted bipolar sensing, thus improving the IAB sensing process.

[0025] Secondly, embodiments of this application provide a communication method that can be applied to a second node. This method can be executed by the second node, by components in the second node (e.g., processors, chips, circuits, or chip systems), or by logic modules or software capable of implementing all or part of the functions of the second node. The method includes: receiving first information, the first information including access backhaul integrated IAB sensing mode information, the IAB sensing mode information being used to indicate the IAB sensing mode.

[0026] For example, the IAB sensing mode includes the sensing mode between nodes with IAB functionality. Optionally, this IAB sensing mode information may be referred to as an IAB sensing mode indicator or a sensing mode indicator flag.

[0027] In the above method, the second node performs different steps to complete the IAB sensing measurement according to the IAB sensing mode indicated by the IAB sensing mode information in the received first information, thereby realizing bi-base sensing between network devices with IAB function, which is beneficial to collaborative sensing between network devices with IAB function.

[0028] In one possible implementation, the first information further includes first sensing mode type information, which is used to indicate bi-base sensing from network device to network device.

[0029] Optionally, the perception mode type information can be called a perception mode indicator or a perception mode indicator flag.

[0030] In the above method, the constraint relationship between the perception mode type information and the IAB perception mode information is used to determine that the current perception mode is network device to network device bi-base perception through the first perception type information, and then the IAB perception mode information is enabled. Conversely, when it is determined that the current perception mode is not network device to network device bi-base perception, the IAB perception mode information cannot be enabled, which is beneficial for the subsequent network devices to normally realize bi-base perception through the IAB link.

[0031] In another possible implementation, when the IAB sensing mode information is in the first state, the IAB sensing mode information indicates that the IAB sensing mode is IAB downlink bibase sensing.

[0032] In the above method, it is defined that when the IAB sensing mode information is in the first state, the IAB sensing mode indicates that the IAB sensing mode is IAB downlink bi-base sensing, thus improving the IAB sensing process.

[0033] In another possible implementation, the first information further includes resource configuration information of the sensing measurement signal, and the method further includes: receiving the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal; and performing sensing measurement based on the IAB sensing measurement signal to determine the IAB sensing result.

[0034] The above method provides a method for configuring, receiving, and measuring IAB sensing measurement signals when the IAB sensing mode is IAB downlink bibase sensing. This improves the IAB sensing process and enables bibase sensing between network devices with IAB functionality. This allows the network to flexibly select network devices with IAB functionality and IAB sensing methods that provide sensing services on the IAB link.

[0035] In another possible implementation, when the IAB sensing mode information is in the second state, the IAB sensing mode information indicates that the IAB sensing mode is IAB uplink bibase sensing.

[0036] In the above method, it is defined that when the IAB sensing mode information is in the second state, the IAB sensing mode indicates that the IAB sensing mode is IAB uplink bi-base sensing, thus improving the IAB sensing process.

[0037] In another possible implementation, the first information further includes resource configuration information of the sensing measurement signal, and the method further includes: sending the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal.

[0038] The above method provides a method for configuring and transmitting IAB sensing measurement signals when the IAB sensing mode is IAB uplink bibase sensing, which improves the IAB sensing process and realizes bibase sensing between network devices with IAB function. This enables the network to flexibly select network devices with IAB function and IAB sensing methods that provide sensing services on the IAB link.

[0039] In another possible implementation, when the IAB sensing mode information is in the third state, the IAB sensing mode information indicates that the IAB sensing mode is IAB lateral bibase sensing.

[0040] In the above method, it is defined that when the IAB sensing mode information is in the third state, the IAB sensing mode indicates that the IAB sensing mode is IAB side-mounted bipolar sensing, thus improving the IAB sensing process.

[0041] In another possible implementation, the method further includes: sending second information, which includes at least one of the following: the IAB sensing mode information, the first sensing mode type information, or resource configuration information of the sensing measurement signal.

[0042] In the above method, when the IAB sensing mode is IAB side-by-side bi-base sensing, the second node sends the second information, which is beneficial for subsequent nodes to perform IAB sensing based on the second information.

[0043] In another possible implementation, the method further includes: sending the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal.

[0044] The above method provides a method for transmitting IAB sensing measurement signals when the IAB sensing mode is IAB-side bibase sensing, which improves the IAB sensing process and realizes bibase sensing between network devices with IAB function, enabling the network to flexibly select network devices with IAB function and IAB sensing methods that provide sensing services on the IAB link.

[0045] In another possible implementation, the method further includes: receiving the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal; and performing sensing measurement based on the IAB sensing measurement signal to determine the IAB sensing result.

[0046] The above method provides a method for receiving and measuring IAB sensing measurement signals when the IAB sensing mode is IAB-side bibase sensing, which improves the IAB sensing process and realizes bibase sensing between network devices with IAB function. This enables the network to flexibly select network devices with IAB function and IAB sensing methods that provide sensing services on the IAB link.

[0047] Thirdly, embodiments of this application provide a communication method that can be applied to a first network element. This method can be executed by the first network element, by components within the first network element (e.g., processors, chips, circuits, or chip systems), or by a logic module or software capable of implementing all or part of the functions of the first network element. The method includes: determining integrated access backhaul (IAB) sensing mode information, the IAB sensing mode information being used to indicate the IAB sensing mode; and sending first indication information, the first indication information including the IAB sensing mode information.

[0048] For example, the IAB sensing mode includes the sensing mode between nodes with IAB functionality. Optionally, this IAB sensing mode information may be referred to as an IAB sensing mode indicator or a sensing mode indicator flag.

[0049] For example, the first indication information may further include at least one of the following: identification information of a first node, or identification information of a second node, wherein the node identification information included in the first indication information is used to indicate the node that needs to participate in the IAB sensing service, or the node that the first network element schedules to participate in the IAB sensing service. Wherein, when the IAB sensing mode information in the first indication information indicates that the IAB sensing mode is IAB-side dual-base sensing, the first indication information may further include identification information of a third node, which is used to indicate the node that needs to participate in the IAB sensing service.

[0050] In the above method, the first network element determines the IAB sensing mode and sends the IAB sensing mode information through the first instruction information, notifying the network devices with IAB function of the sensing mode that need to be completed collaboratively, which is conducive to realizing bi-base sensing between network devices with IAB function.

[0051] Fourthly, embodiments of this application provide a communication method applicable to a third node. This method can be executed by the third node, by components within the third node (e.g., processors, chips, circuits, or chip systems), or by a logic module or software capable of implementing all or part of the functions of the third node. The method includes: receiving second information, which includes at least one of the following: access backhaul integrated IAB sensing mode information, first sensing mode type information, or resource configuration information for sensing measurement signals. The IAB sensing mode information is used to indicate the IAB sensing mode, and the first sensing mode type information is used to indicate bi-base sensing from network device to network device.

[0052] For example, the IAB sensing mode includes the sensing mode between nodes with IAB functionality. Optionally, this IAB sensing mode information may be referred to as an IAB sensing mode indicator or a sensing mode indicator flag.

[0053] Optionally, the perception mode type information can be called a perception mode indicator or a perception mode indicator flag.

[0054] In the above method, the third node performs corresponding steps to complete the IAB sensing measurement based on the IAB sensing mode indicated by the IAB sensing mode information, namely the resource configuration information of IAB-side bibase sensing and sensing measurement signals, thereby realizing bibase sensing between network devices with IAB function, which is beneficial to collaborative sensing between network devices with IAB function.

[0055] In one possible implementation, the method further includes: receiving the IAB sensing measurement signal based on resource configuration information of the sensing measurement signal; and performing sensing measurement based on the IAB sensing measurement signal to determine the IAB sensing result.

[0056] The above method provides a method for receiving and measuring IAB sensing measurement signals when the IAB sensing mode is IAB-side bibase sensing, which improves the IAB sensing process and realizes bibase sensing between network devices with IAB function. This enables the network to flexibly select network devices with IAB function and IAB sensing methods that provide sensing services on the IAB link.

[0057] In another possible implementation, the method further includes: sending the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal.

[0058] The above method provides a method for transmitting IAB sensing measurement signals when the IAB sensing mode is IAB-side bibase sensing. This method is beneficial for the subsequent second node to perform sensing measurements based on the IAB sensing measurement signals to determine the IAB sensing results, thus improving the IAB sensing process. Furthermore, it enables bibase sensing between network devices with IAB functionality, allowing the network to flexibly select network devices with IAB functionality and IAB sensing methods that provide sensing services on the IAB link.

[0059] Fifthly, embodiments of this application provide a communication device, which may be a first node, a component of the first node (e.g., a processor, chip, circuit, or chip system), or a logic module or software capable of implementing all or part of the functions of the first node.

[0060] In one possible implementation, the communication device may include modules, units, or means that correspond one-to-one with the methods / operations / steps / actions described in the first aspect. These modules, units, or means may be hardware circuits, software, or a combination of hardware circuits and software.

[0061] In one possible implementation, the communication device includes: a processing unit and a transceiver unit, the transceiver unit being configured to receive first indication information, the first indication information including access backhaul integrated IAB sensing mode information, the IAB sensing mode information being used to indicate an IAB sensing mode; the transceiver unit being configured to send first information, the first information including the IAB sensing mode information.

[0062] In one possible implementation, the transceiver unit is further configured to receive first sensing mode type information, which is used to indicate network device-to-network device bipolar sensing; the processing unit is further configured to determine the availability of the IAB sensing mode information based on the first sensing mode type information.

[0063] In another possible implementation, the first information also includes the first perception mode type information.

[0064] In another possible implementation, when the IAB sensing mode information is in the first state, the IAB sensing mode information indicates that the IAB sensing mode is IAB downlink bibase sensing.

[0065] In another possible implementation, the first information also includes the first sensing mode type information and the resource configuration information of the sensing measurement signal. The transceiver unit is further configured to send the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal.

[0066] In another possible implementation, when the IAB sensing mode information is in the second state, the IAB sensing mode information indicates that the IAB sensing mode is IAB uplink bibase sensing.

[0067] In another possible implementation, the first information further includes resource configuration information of the sensing measurement signal. The transceiver unit is further configured to receive the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal. The processing unit is further configured to perform sensing measurement based on the IAB sensing measurement signal to determine the IAB sensing result.

[0068] In another possible implementation, when the IAB sensing mode information is in the third state, the IAB sensing mode information indicates that the IAB sensing mode is IAB lateral bibase sensing.

[0069] For the technical effects of the fifth aspect or possible implementation, please refer to the introduction of the technical effects of the first aspect or corresponding implementation.

[0070] Sixthly, embodiments of this application provide a communication device, which can be a second node, a component in the second node (e.g., a processor, chip, circuit, or chip system), or a logic module or software capable of implementing all or part of the functions of the second node.

[0071] In one possible implementation, the communication device may include modules, units, or means that correspond one-to-one with the methods / operations / steps / actions described in the second aspect. These modules, units, or means may be hardware circuits, software, or a combination of hardware circuits and software.

[0072] In one possible implementation, the communication device includes a processing unit and a transceiver unit, the transceiver unit being configured to receive first information, the first information including access backhaul integrated IAB sensing mode information, the IAB sensing mode information being used to indicate the IAB sensing mode.

[0073] In one possible implementation, the first information further includes first sensing mode type information, which is used to indicate bi-base sensing from network device to network device.

[0074] In another possible implementation, when the IAB sensing mode information is in the first state, the IAB sensing mode information indicates that the IAB sensing mode is IAB downlink bibase sensing.

[0075] In another possible implementation, the first information further includes resource configuration information of the sensing measurement signal. The transceiver unit is further configured to receive the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal. The processing unit is further configured to perform sensing measurement based on the IAB sensing measurement signal to determine the IAB sensing result.

[0076] In another possible implementation, when the IAB sensing mode information is in the second state, the IAB sensing mode information indicates that the IAB sensing mode is IAB uplink bibase sensing.

[0077] In another possible implementation, the first information also includes resource configuration information for the sensing measurement signal, and the transceiver unit is further configured to send the IAB sensing measurement signal based on the resource configuration information for the sensing measurement signal.

[0078] In another possible implementation, when the IAB sensing mode information is in the third state, the IAB sensing mode information indicates that the IAB sensing mode is IAB lateral bibase sensing.

[0079] In another possible implementation, the transceiver unit is also configured to transmit second information, which includes at least one of the following: the IAB sensing mode information, the first sensing mode type information, or resource configuration information of the sensing measurement signal.

[0080] In another possible implementation, the transceiver unit is also used to send the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal.

[0081] In another possible implementation, the transceiver unit is further configured to receive the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal; the processing unit is further configured to perform sensing measurement based on the IAB sensing measurement signal to determine the IAB sensing result.

[0082] For the technical effects of the sixth aspect or possible implementation, please refer to the introduction of the technical effects of the second aspect or corresponding implementation.

[0083] In a seventh aspect, embodiments of this application provide a communication device, which may be a first network element, a component within the first network element (e.g., a processor, chip, circuit, or chip system), or a logic module or software capable of implementing all or part of the functions of the first network element.

[0084] In one possible implementation, the communication device may include modules, units, or means that correspond one-to-one with the methods / operations / steps / actions described in the third aspect. These modules, units, or means may be hardware circuits, software, or a combination of hardware circuits and software.

[0085] In one possible implementation, the communication device includes: a processing unit and a transceiver unit; the processing unit is configured to determine access backhaul integrated IAB sensing mode information, the IAB sensing mode information being used to indicate the IAB sensing mode; the transceiver unit is configured to send first indication information, the first indication information including the IAB sensing mode information.

[0086] For the technical effects of the seventh aspect or possible implementation, please refer to the introduction of the technical effects of the third aspect or corresponding implementation.

[0087] Eighthly, embodiments of this application provide a communication device, which may be a third node, a component of the third node (e.g., a processor, chip, circuit, or chip system), or a logic module or software capable of implementing all or part of the functions of the third node.

[0088] In one possible implementation, the communication device may include modules, units, or means that correspond one-to-one with the methods / operations / steps / actions described in the fourth aspect. These modules, units, or means may be hardware circuits, software, or a combination of hardware circuits and software.

[0089] In one possible implementation, the communication device includes a processing unit and a transceiver unit, the transceiver unit being configured to receive second information, the second information including at least one of the following: integrated access backhaul (IAB) sensing mode information, first sensing mode type information, or resource configuration information of sensing measurement signals, the IAB sensing mode information being used to indicate an IAB sensing mode, and the first sensing mode type information being used to indicate bi-base sensing from network device to network device.

[0090] In one possible implementation, the transceiver unit is further configured to receive the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal; the processing unit is further configured to perform sensing measurement based on the IAB sensing measurement signal to determine the IAB sensing result.

[0091] In another possible implementation, the transceiver unit is also used to send the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal.

[0092] For the technical effects of the eighth aspect or possible implementation, please refer to the introduction of the technical effects of the fourth aspect or corresponding implementation.

[0093] Ninthly, embodiments of this application provide a communication device including at least one processor, which invokes a computer program or instructions stored in a memory to execute the method described in the first aspect or a possible implementation thereof.

[0094] In one possible implementation, the communication device also includes a memory and a communication interface. Optionally, the memory and processor are integrated together.

[0095] In one possible implementation, the memory is located outside the communication device.

[0096] In a tenth aspect, embodiments of this application provide a communication device including at least one processor that invokes a computer program or instructions stored in a memory to execute the method described in the second aspect or a possible implementation thereof.

[0097] In one possible implementation, the communication device also includes a memory and a communication interface. Optionally, the memory and processor are integrated together.

[0098] In one possible implementation, the memory is located outside the communication device.

[0099] Eleventhly, embodiments of this application provide a communication device, which includes at least one processor that invokes computer programs or instructions stored in a memory to execute the method described in the third aspect or a possible implementation thereof.

[0100] In one possible implementation, the communication device also includes a memory and a communication interface. Optionally, the memory and processor are integrated together.

[0101] In one possible implementation, the memory is located outside the communication device.

[0102] In a twelfth aspect, embodiments of this application provide a communication device including at least one processor that invokes a computer program or instructions stored in a memory to execute the method described in the fourth aspect or a possible implementation thereof.

[0103] In one possible implementation, the communication device also includes a memory and a communication interface. Optionally, the memory and processor are integrated together.

[0104] In one possible implementation, the memory is located outside the communication device.

[0105] In a thirteenth aspect, embodiments of this application provide a chip device including at least one processor for executing computer programs or instructions to implement any of the above aspects or possible implementations of any of the above aspects.

[0106] In one possible implementation, the input of the chip device corresponds to the receiving operation in any of the above-mentioned aspects or possible implementations, and the output of the chip device corresponds to the transmitting operation in any of the above-mentioned aspects or possible implementations.

[0107] Optionally, the processor is coupled to the memory via an interface.

[0108] Optionally, the chip device may also include a memory in which computer programs or instructions are stored.

[0109] In a fourteenth aspect, embodiments of this application provide a computer-readable storage medium storing a computer program or instructions that, when executed on a processor, implement the methods described above.

[0110] In a fifteenth aspect, embodiments of this application provide a computer program product that includes a computer program or instructions that, when executed on a processor, implement the methods described above.

[0111] In a sixteenth aspect, embodiments of this application provide a communication system comprising: the apparatus of the ninth aspect, the apparatus of the tenth aspect, the apparatus of the eleventh aspect, and the apparatus of the twelfth aspect. Attached Figure Description

[0112] Figure 1 This is a schematic diagram of the architecture of a communication system provided in an embodiment of this application;

[0113] Figure 2 This is a schematic diagram of an IAB architecture in the NR protocol;

[0114] Figure 3 This is a schematic diagram of an integrated communication and sensing scenario.

[0115] Figure 4 It is a schematic diagram of the format and content of the perception mode indication;

[0116] Figure 5 This is a schematic diagram of three types of sensing measurements involving IAB nodes provided in the embodiments of this application;

[0117] Figure 6 This is a flowchart of a communication method provided in an embodiment of this application;

[0118] Figure 7 This is a schematic diagram of an IAB sensing mode information format and content provided in an embodiment of this application;

[0119] Figure 8 This is a schematic diagram illustrating the sensing measurement using the three IAB sensing modes provided in the embodiments of this application;

[0120] Figure 9 This is a schematic diagram illustrating the constraint relationship between the perception mode type information and the IAB perception mode information provided in the embodiments of this application;

[0121] Figure 10 This is a flowchart of yet another communication method provided in the embodiments of this application;

[0122] Figure 11 This is a flowchart of yet another communication method provided in the embodiments of this application;

[0123] Figure 12 This is a flowchart of yet another communication method provided in the embodiments of this application;

[0124] Figure 13This is a flowchart of yet another communication method provided in the embodiments of this application;

[0125] Figure 14 This is a flowchart of yet another communication method provided in the embodiments of this application;

[0126] Figure 15 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0127] Figure 16 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application. Detailed Implementation

[0128] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0129] References to "one embodiment" or "some embodiments" as described in this application mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0130] In the description of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Furthermore, "at least one" means one or more, and "multiple" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent: a, b, c; a and b; a and c; b and c; or a and b and c. Where a, b, and c can be single or multiple.

[0131] It is understood that in this application, "instruction" can include direct instruction, indirect instruction, explicit instruction, and implicit instruction. When describing a certain instruction information to indicate A, it can be understood that the instruction information carries A, directly indicates A, or indirectly indicates A.

[0132] In this application, the information indicated by the instruction information is called the information to be instructed. In specific implementations, there are many ways to instruct the information to be instructed, such as, but not limited to, directly instructing the information to be instructed, such as the information to be instructed itself or its index; indirectly instructing the information to be instructed by instructing other information, where there is a relationship between the other information and the information to be instructed; or instructing only a part of the information to be instructed, while the other parts are known or pre-agreed upon. For example, the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol-defined) arrangement of various pieces of information, thereby reducing instruction overhead to some extent.

[0133] The information to be instructed can be sent as a whole or divided into multiple sub-information messages, and the sending period and / or timing of these sub-information messages can be the same or different. This application does not limit the specific sending method. The sending period and / or timing of these sub-information messages can be predefined, for example, according to a protocol, or configured by the transmitting device by sending configuration information to the receiving device.

[0134] It is understood that "send" and "receive" in this application refer to the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which can include direct transmission via the air interface or indirect transmission via the air interface from other units or modules. "Receive information from YY" can be understood as the source of the information being YY, which can include direct reception from YY via the air interface or indirect reception from YY via the air interface from other units or modules. "Send" can also be understood as the "output" of the chip interface, and "receive" can also be understood as the "input" of the chip interface.

[0135] In other words, sending and receiving can occur between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via buses, wiring, or interfaces.

[0136] It is understandable that information may undergo necessary processing, such as encoding and modulation, between the source and destination, but the destination can understand the valid information from the source. Similar statements in this application can be interpreted in a similar way and will not be elaborated further.

[0137] The communication method provided in this application can be applied to cellular communication systems related to the 3rd Generation Partnership Project (3GPP), such as 4th generation (4G) communication systems, such as Long Term Evolution (LTE) communication systems, and also to 5th generation (5G) communication systems, such as 5G New Radio (NR) communication systems, or to various future communication systems and future communication networks. The method provided in this application can also be applied to Bluetooth systems, Wireless Fidelity (WiFi) systems, LoRa systems, or vehicle-to-everything (V2X) systems, communication systems supporting the integration of multiple wireless technologies, and device-to-device (D2D) systems. The method provided in this application can also be applied to satellite communication systems, wherein the satellite communication system can be integrated with the above-mentioned communication systems. The wireless communication systems involved in this application also include, but are not limited to: narrowband internet of things (NB-IoT) systems, global system for mobile communications (GSM), enhanced data rate for GSM evolution (EDGE), wideband code division multiple access (WCDMA) systems, code division multiple access 2000 (CDMA2000) systems, or time division-synchronization code division multiple access (TD-SCDMA) systems.

[0138] Please see Figure 1 , Figure 1 This is a schematic diagram of the architecture of a communication system provided in an embodiment of this application, to Figure 1The application scenario used in this application is illustrated using the communication system architecture shown. The communication system includes a first network element, a first node, and a second node. The first network element has sensing capabilities; exemplarily, it can be a sensing management function (SeMF) network element. The SeMF is a higher-level network element, primarily responsible for higher-level management functions related to sensing services, similar in role to the location management function (LMF) network element in 5G positioning services. The SeMF can take various forms, including a higher-level network element on the core network side, a network element mounted on the radio access network (RAN) side, or a sensing-specific function management module with a physical entity. The first node is a network device supporting integrated access and backhaul (IAB) functionality. This network device can be any of the network devices described below, and any such network device has IAB functionality. The first node can connect to the core network via non-IAB devices (devices without IAB functionality) such as fiber optic cables. This first node is the provider of the backhaul service, and communication is ultimately relayed to it via wireless IAB backhaul. The second node is a network device that supports access via New Radio (NR) and IAB functionality. This network device can be any of the network devices described below, and any such network device has IAB functionality. The second node can be approximated as a relay unit that establishes a wireless IAB connection with the provider. Optionally, the network device with IAB functionality can be called an IAB node; that is, the first node can also be called IAB node 1, and the second node can also be called IAB node 2. IAB nodes include IAB-donor and IAB-node. Optionally, the first node can be an IAB-donor, which can also be called a gNodeB-donor. Optionally, the second node can be an IAB-node.

[0139] Optionally, the communication system may further include a third node, which is a network device supporting NR access and IAB functionality. This network device can be any of the network devices described below, and any such network device has IAB functionality. Optionally, the third node may also be an IAB-node. The specific functions of the third node are the same as those of the second node. Optionally, the third node may also be referred to as IAB node 3.

[0140] Optionally, the communication system may further include terminal device 1 and terminal device 2, wherein terminal device 1 can interact with the first node to complete sensing and measurement, and terminal device 2 can interact with the second node to complete sensing and measurement. For details, please refer to the relevant descriptions in subsequent embodiments. Terminal device 1 and terminal device 2 can be any of the terminal devices described below.

[0141] For example, taking the first node as IAB-donor, the second node as IAB-node1, and the third node as IAB-node2 as an example, please refer to [link to relevant documentation]. Figure 2 , Figure 2 This is a schematic diagram of an IAB architecture in the NR protocol. The IAB-donor communicates with the 5G core network (5GC) and base stations (next generation NodeBs, gNodeBs) in the 5G system via wired transmission links. Specifically, this wired communication can be achieved through the NG interface. The IAB-donor communicates with IAB-nodes, and between different IAB-nodes, via wireless backhaul links. Specifically, this wireless communication can be achieved through the Uu interface. The IAB-donor can be divided into two parts: IAB-donor-CU and IAB-donor-DU; the IAB-node can be divided into two parts: IAB-node-MT and IAB-node-DU. The IAB-donor-CU provides connections for the IAB-donor-DU and IAB-node-DU. For example, the IAB-donor-CU can provide connections for the IAB-donor-DU, the IAB-node-DU in IAB-node1, and the IAB-node-DU in IAB-node2 through the F1 interface. The IAB-donor-DU provides access to the IAB-node-MT or terminal devices. For example, the IAB-donor-DU can provide a connection to the IAB-node-MT in IAB-node1 via the Uu interface. The IAB-node-DU provides access to terminal devices or downstream terminal devices, providing coverage gaps. For example, the IAB-node-DU in IAB-node1 can provide a connection to the IAB-node-MT in IAB-node2 via the Uu interface. The IAB-node-MT connects to the wireless transmission backhaul link as a terminal device.

[0142] The network element in this application embodiment can also be replaced by entity, network entity, device, communication device, communication module, node, communication node, etc. In this application embodiment, the network element is used as an example for description.

[0143] The product forms involved in this application mainly fall into two categories: first, adding a sensing module device with a physical entity to existing network equipment (such as a base station); and second, adding new sensing algorithms and solutions and implementing software modifications. For devices with existing sensing functions, or devices that have completed integrated sensing and communication upgrades, the first hardware modification is unnecessary; only the second software modification is required. For software modifications, it is necessary to... Figure 1 New sensing algorithms are added to the first node, second node, third node, first network element, terminal device 1 and terminal device 2 in the system, and new messages, signaling, flag bits or data are added to the transmitted air interface data because of the provision of sensing services. For example, a flag bit is designed to indicate the IAB sensing mode, i.e. IAB sensing mode information. This content may occupy part of the transmit and receive resources. At the same time, the sensing information obtained through sensing measurement may also occupy part of the storage resources.

[0144] The apparatus provided in this application embodiment can be applied to a first network element, a first node, a second node, or a third node. It is understood that... Figure 1 This application only illustrates one possible communication system architecture that can be applied to an embodiment of the present application. In other possible scenarios, the communication system architecture may also include other devices.

[0145] (1) Terminal equipment, also known as user equipment (UE), mobile station (MS), mobile terminal (MT), etc., is a device that provides voice or data connectivity to a user. Specifically, it includes devices that provide voice connectivity to a user, devices that provide data connectivity to a user, or devices that provide both voice and data connectivity to a user. For example, it may include handheld devices with wireless connectivity or processing devices connected to a wireless modem. This terminal equipment can communicate with the core network via the radio access network (RAN), exchange voice or data with the RAN, or interact with the RAN for both voice and data. Currently, terminal devices can include: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices (such as smartwatches, smart bracelets, pedometers, etc.), in-vehicle devices (such as cars, bicycles, electric vehicles, airplanes, ships, trains, high-speed trains, etc.), virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, smart home devices (such as refrigerators, televisions, air conditioners, electricity meters, etc.), intelligent robots, workshop equipment, wireless terminals in autonomous driving, wireless terminals in remote surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, or wireless terminals in smart homes, and flying equipment (such as intelligent robots, hot air balloons, drones, airplanes), etc. Terminal devices can also be other devices with terminal functions; for example, a terminal device can also be a device that performs terminal functions in D2D communication.Terminal equipment can also include vehicle-to-everything (V2X) terminal equipment, machine-to-machine / machine-type communications (M2M / MTC) terminal equipment, internet of things (IoT) terminal equipment, light UE, reduced capability UE (REDCAP UE), subscriber unit, subscriber station, mobile station, remote station, access point (AP), remote terminal, access terminal, user terminal, user agent, or user device, unmanned aerial vehicle (UAV) equipment, etc. For example, it can include roadside units (RSUs). It can also include mobile phones (or "cellular" phones), computers with mobile terminal devices, portable, pocket-sized, handheld, and computer-embedded mobile devices, etc. Examples include personal communication service (PCS) telephones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, and personal digital assistants (PDAs). Terminal devices may also include limited devices, such as those with low power consumption, limited storage capacity, or limited computing power. Examples include information sensing devices such as barcode scanners, radio frequency identification (RFID), sensors, global positioning systems (GPS), and laser scanners. In this application, terminal devices with wireless transceiver capabilities and chips that can be installed in the aforementioned terminal devices are collectively referred to as terminal devices.

[0146] It should be noted that the terminal device may be a device or apparatus with a chip, or a device or apparatus with integrated circuitry, or a chip, module or control unit in the device or apparatus shown above. This application does not limit the specific device.

[0147] (2) A network device is a device deployed in a radio access network to provide wireless communication functions for terminal devices. A network device may also be called an access network (RAN) entity, access node, network node, or communication device, etc.

[0148] Specifically, the network equipment can be access network equipment for cellular systems related to the 3rd Generation Partnership Project (3GPP), such as 5G mobile communication systems. The network equipment can also be access network equipment in open RAN (O-RAN or ORAN) or cloud radio access network (CRAN). Alternatively, the network equipment can be access network equipment in a communication system formed by the integration of two or more of the above communication systems.

[0149] Network equipment includes, but is not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home-evolved Node B, or home Node B, HNB), baseband unit (BBU), access point (AP) in wireless fidelity (Wi-Fi) systems, macro base station, micro base station, wireless relay node, donor node, radio controller in CRAN scenarios, wireless backhaul node, transmission point (TP), or transmission and receiving point (TRP). Network equipment can also be access network equipment in 5G mobile communication systems. For example, antenna panels (including multiple antenna panels) of a next-generation NodeB (gNB), TRP, or TP in a new radio (NR) system, or a base station (BS) in a 5G mobile communication system. Alternatively, network equipment can also be network nodes constituting a gNB or transmission point. Examples include centralized units (CUs), distributed units (DUs), CU-control planes (CPs), CU-user planes (UPs), or radio units (RUs). CUs and DUs can be separate or included in the same network element, such as a BBU. RUs can be included in radio equipment or radio units, such as remote radio units (RRUs), active antenna units (AAUs), or remote radio heads (RRHs). Alternatively, network equipment can also be servers, wearable devices, vehicles, or in-vehicle equipment. For example, in V2X technology, network devices can be roadside units (RSUs).

[0150] It should be noted that CU (or CU-CP and CU-UP), DU, or RU may have different names in different systems, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called an open centralized unit (O-CU) or an open CU, DU can also be called an open distributed unit (O-DU), centralized unit control plane (CU-CP) can also be called an open centralized unit control plane (O-CU-CP) or an open CU-CP, centralized unit user plane (CU-UP) can also be called an open centralized unit user plane (O-CU-UP) or an open CU-UP, and RU can also be called an open radio unit (O-RU). This application does not impose any specific limitations. Any of the units CU, CU-CP, CU-UP, DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules.

[0151] In some deployments, the CU and DU implement some of the functions of the gNB. For example, the CU implements the functions of the radio resource control (RRC) and packet data convergence protocol (PDCP) layers, while the DU implements the functions of the radio link control (RLC), media access control (MAC), and physical (PHY) layers. Since RRC layer information ultimately becomes PHY layer information, or is derived from PHY layer information, in this architecture, higher-layer signaling, such as RRC or PDCP layer signaling, can also be considered as being sent by the DU, or by the DU+RU. It is understood that network devices can be CU nodes, DU nodes, or devices including both CU and DU nodes. Furthermore, the CU can be classified as a network device in the access network (RAN) or a network device in the core network (CN); no restrictions are placed here.

[0152] Optionally, the network device can also be a roadside unit (RSU). When an RSU is used as a network device, it is equivalent to a small roadside base station and can perform all the functions of a base station.

[0153] It should be noted that the network device can be the device or apparatus shown above, or a component (e.g., a chip), module, or unit in the device or apparatus shown above; this application does not limit the specifics.

[0154] The following is combined Figure 1 The communication system shown herein will be described in detail with reference to the communication method provided in the embodiments of this application.

[0155] To better understand the solutions provided in the embodiments of this application, some terms, concepts or processes involved in the embodiments of this application will be introduced below.

[0156] (1) Monostatic sensing: self-spontaneous sensing, that is, the device that sends the sensing signal and the device that receives the sensing signal reflected by the sensing target are the same device.

[0157] (2) Base station monostatic sensing: monostatic sensing of the same base station transmitting and receiving sensing measurement signals.

[0158] (3) User Equipment Monostatic: Monostatic sensing transmitted and received by the same user equipment.

[0159] (4) Bistatic sensing: spontaneous and received sensing, that is, the device that sends the sensing signal and the device that receives the sensing signal reflected by the sensing target are different devices.

[0160] (5) Base station to base station bistatic sensing: The base station sends sensing measurement signals and the base station receives sensing measurement signals in bistatic sensing.

[0161] (6) Base station to user equipment bistatic sensing (BS-UE Bistatic): The base station sends sensing measurement signals and the user equipment receives the sensing measurement signals in bistatic sensing.

[0162] (7) User Equipment to Base Station Bistatic (UE-BS Bistatic): The user equipment sends sensing measurement signals and the base station receives the sensing measurement signals in a bistatic process.

[0163] (8) User Equipment to User Equipment Bistatic Sensing (UE-UE Bistatic): The user equipment sends sensing measurement signals and the user equipment receives sensing measurement signals in bistatic sensing.

[0164] (9) Cooperative sensing: Multiple devices perceive the same target and determine the target's state.

[0165] With the advancement of next-generation mobile communication systems, namely the 6th generation (6G) communication systems, the Internet of Things (IoT), artificial intelligence (AI), big data, and automation technologies are reshaping traditional industries and giving rise to intelligent applications such as smart cities and autonomous driving. As a crucial infrastructure supporting these emerging applications, mobile communication systems are gradually evolving into a unified infrastructure of integrated sensing and communication (ISAC), one of the key potential technologies for 6G mobile communication systems. ISAC requires existing base stations to have sensing capabilities, enabling mobile communication systems to provide sensing services to users. See also... Figure 3 , Figure 3 This is a schematic diagram of an integrated communication and sensing scenario, which includes multiple network devices (such as network device 1 and network device 2), multiple terminal devices (such as terminal device 1, terminal device 2, and terminal device 3), and roadside units (RSUs). This integrated communication and sensing scenario enables collaborative sensing measurement and transmission among multiple sensing nodes. Sensing measurement involves perceiving the environment and target objects around the nodes, while transmission involves transmitting results, data, and measurement signals related to the sensing service. For example, in this scenario, network device 1 can collaborate with network device 2 or terminal device 3 to perform sensing measurement of the surrounding environment (i.e., sensing target 1 and sensing target 2). Network device 1 can also transmit data with network device 2, terminal device 1, terminal device 2, terminal device 3, or roadside units. For example, sensing target 1 and sensing target 2 are exemplified as vehicles; the implementation form of the sensing targets is not limited. This integrated sensing scenario may also include a Sensing Management Function (SeMF) network element. In this integrated sensing scenario, network devices are responsible for both communication and sensing functions, and are also partially responsible for the centralized storage, management, distribution, and computation of target object information; terminal devices and RSUs are mainly responsible for assisting network devices in providing sensing services and undertaking some sensing computation and storage work; SeMF network elements are mainly used to be responsible for high-level management functions related to sensing services.

[0166] In current collaborative sensing schemes, there are two main categories of passive sensing modes: monostatic sensing and bistatic sensing. Monostatic sensing is self-transmitting and self-receiving sensing, where the transmitter and receiver are in the same location; for example, the device sending the sensing signal and the device receiving the sensing signal reflected from the sensing target are the same device. Bistatic sensing is self-transmitting and other-receiving sensing, where the transmitter and receiver are in different locations; for example, the device sending the sensing signal and the device receiving the sensing signal reflected from the sensing target are different devices.

[0167] Network devices and terminal devices are commonly used for receiving and transmitting sensing and measurement signals. There are two common types of single-base sensing: network device-based single-base sensing (e.g., BS Monostatic) and terminal device-based single-base sensing (e.g., UE Monostatic). There are four common types of dual-base sensing: network device-to-network device dual-base sensing (e.g., BS-BS Bistatic), network device-to-terminal device dual-base sensing (e.g., BS-UE Bistatic), terminal device-to-network device dual-base sensing (e.g., UE-BS Bistatic), and terminal device-to-terminal device dual-base sensing (e.g., UE-UE Bistatic).

[0168] In existing technologies, these six sensing modes are indicated by a sensing mode indicator (sensingStaticType), see [link to relevant documentation]. Figure 4 , Figure 4 This is a schematic diagram of the format and content of the sensing mode indication. In the communication system, the backhaul transmission between network devices (such as base stations) with IAB functionality can adopt IAB technology. That is, when sensingStaticType=1, in the bi-base sensing mode from network device to network device, both the transmitting and receiving devices of the sensing measurement signal can be regarded as IAB nodes. At this time, the sensing measurement involves the sensing measurement between IAB nodes. When sensingStaticType is any other value {0,2,3,4,5}, the transmission of the sensing measurement signal no longer involves the transmission and reception of measurement signals between IAB nodes.

[0169] Based on this, these six sensing modes can be classified into three categories according to whether the sensing measurement signals are transmitted between IAB nodes. Please refer to [link to relevant documentation]. Figure 5 , Figure 5This is a schematic diagram of three types of sensing measurements involving IAB nodes. The three sensing modes are as follows: (i) The sensing measurement process occurs between IAB nodes (IAB-donor and IAB-node), including the case where the sensing mode is {1}, i.e., sensingStaticType = 1; (ii) The sensing measurement process is directed by the IAB-donor and completed by the IAB-node, including the five cases where the sensing mode is {0,2,3,4,5} and the network device involved in the sensing mode is the IAB-node; (iii) The sensing measurement process is directly completed by the IAB-donor, including the five cases where the sensing mode is {0,2,3,4,5} and the network device involved in the sensing mode is the IAB-donor. In the first type of sensing mode, the configuration signaling interaction and measurement process of the sensing and measurement signals occur entirely between IAB nodes. In the second type of sensing mode, the transmission of configuration signaling for the sensing and measurement signals occurs between the IAB-donor and the IAB-node, while the transmission of the sensing and measurement signals is independent of the IAB protocol. In the third type of sensing mode, both the transmission of configuration signaling for the sensing and measurement signals and the transmission of the sensing and measurement signals are independent of the IAB protocol. Therefore, the first type of sensing mode can also be called the "IAB sensing" mode, while the second and third types of sensing modes can be called the "non-IAB sensing mode with IAB node participation".

[0170] Currently, existing technologies propose a bistatic sensing method for bistatic sensing modes, utilizing radio frequency (RF) sensing and object tracking between a base station (BS) and / or user equipment (UE) with a single reference signal. This method designs bistatic sensing measurement and beam management schemes for the uplink and downlink between the BS and UE. However, in bistatic sensing, where both the transmitter and receiver are network devices with integrated access backhaul (IAB) links, defining bistatic sensing between network devices with IAB functionality is a technical problem being addressed by those skilled in the art. To solve the above problem, embodiments of this application propose the following solution.

[0171] Please see Figure 6 , Figure 6 This is a flowchart of a communication method provided in an embodiment of this application, which includes, but is not limited to, the following steps:

[0172] Step S601: The first network element determines the access backhaul integrated IAB sensing mode information.

[0173] The IAB sensing mode information is used to indicate the IAB sensing mode, which includes the sensing mode between nodes with IAB functionality. Optionally, this IAB sensing mode information can be called an IAB sensing mode indicator or a sensing mode indicator flag.

[0174] The IAB sensing mode information has three states: a first state, a second state, and a third state. When the IAB sensing mode information is in the first state, it indicates that the IAB sensing mode is IAB downlink bistatic sensing (IAB-DL Bistatic). In this case, the transmitting node for the sensing measurement signal is the first node (e.g., IAB-donor), and the receiving node is the second or third node (e.g., IAB-node). When the IAB sensing mode information is in the second state, it indicates that the IAB sensing mode is IAB uplink bistatic sensing (IAB-UL Bistatic). In this case, the transmitting node for the sensing measurement signal is the second or third node (e.g., IAB-node), and the receiving node is the first node (e.g., IAB-donor). When the IAB sensing mode information is in the third state, it indicates that the IAB sensing mode is IAB sidelink bistatic sensing (IAB-SL Bistatic). In the IAB sensing mode (bistatic), when the IAB sensing mode is IAB-side bistatic sensing, both the transmitting and receiving nodes of the sensing measurement signal are the second or third node (e.g., IAB-node). Specifically, the second node can transmit the sensing measurement signal, and correspondingly, the third node can receive the sensing measurement signal; or the third node can transmit the sensing measurement signal, and correspondingly, the second node can receive the sensing measurement signal, but the configuration information of the sensing measurement signal comes from the first node (e.g., IAB-donor). Optionally, the first state can be described as a first value; the second state can be described as a second value; and the third state can be described as a third value. Optionally, the first state can also be described as a first mode; the second state can also be described as a second mode; and the third state can also be described as a third mode.

[0175] In one example, when the IAB sensing mode information occupies 2 bits, there are three selectable values: 0, 1, and 2, corresponding to IABsensingMode = 0, IABsensingMode = 1, and IABsensingMode = 2. Here, 0 represents bit 00, 1 represents bit 01, and 2 represents bit 10. The first state corresponds to IABsensingMode = 0, the second state to IABsensingMode = 1, and the third state to IABsensingMode = 3. The data format and content of the IAB sensing mode information, i.e., IABsensingMode, are as follows: Figure 7 As shown, IABsensingMode=0 indicates that the IAB sensing mode is IAB downlink bibase sensing, IABsensingMode=1 indicates that the IAB sensing mode is IAB uplink bibase sensing, and IABsensingMode=2 indicates that the IAB sensing mode is IAB lateral bibase sensing.

[0176] It is important to note that the "IAB uplink," "IAB downlink," and "IAB sidelink" mentioned above are not the traditional uplink, downlink, and sidelink transactions between network devices (such as BS) and terminal devices (such as UE). The "IAB uplink," "IAB downlink," and "IAB sidelink" transactions mentioned above are unrelated to terminal devices; they occur between network devices with IAB functionality, i.e., IAB nodes (e.g., the first node and the second node).

[0177] In one example, with the first node being the IAB-donor and the second and third nodes being IAB-nodes, please refer to [link / reference needed]. Figure 8 , Figure 8 This is a schematic diagram illustrating the sensing and measurement using the three IAB sensing modes provided in the embodiments of this application, as shown below. Figure 8 As shown in (a), when the IAB sensing mode is IAB downlink bi-base sensing, the transmitting node of the sensing measurement signal is the IAB-donor, and the receiving node of the sensing measurement signal is the IAB-node. The IAB-donor sends configuration signaling for the sensing measurement signal to the IAB-node. This configuration signaling includes resource configuration information for the sensing measurement signal. Subsequently, the IAB-donor sends the IAB sensing measurement signal based on the resource configuration information. This sensing measurement signal is reflected by the sensing target and received by the IAB-node. Finally, the IAB-node determines the IAB sensing result based on this sensing measurement signal. Figure 8As shown in (b), when the IAB sensing mode is IAB uplink bi-base sensing, the transmitting node of the sensing measurement signal is the IAB-node, and the receiving node of the sensing measurement signal is the IAB-donor. The IAB-donor sends configuration signaling for the sensing measurement signal to the IAB-node. This configuration signaling includes resource configuration information for the sensing measurement signal. Subsequently, the IAB-node sends the IAB sensing measurement signal based on the resource configuration information. This sensing measurement signal is reflected by the sensing target and received by the IAB-donor. Finally, the IAB-donor determines the IAB sensing result based on this sensing measurement signal. Figure 8 As shown in (c), when the IAB sensing mode is IAB-side bi-base sensing, both the transmitting node and the receiving node of the sensing measurement signal are IAB-nodes. Taking IAB-node1 as the transmitting node and IAB-node2 as the receiving node as an example, the IAB-donor sends the configuration signaling of the sensing measurement signal to IAB-node1. This configuration signaling includes the resource configuration information of the sensing measurement signal. After receiving the configuration signaling, IAB-node1 sends the configuration signaling of the sensing measurement signal to IAB-node2. Subsequently, IAB-node1 sends the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal. This sensing measurement signal is reflected by the sensing target and received by IAB-node2. Finally, IAB-node2 determines the IAB sensing result based on the sensing measurement signal.

[0178] The above method defines the IAB perception mode indicated by the IAB perception mode information when the IAB perception mode information is in the first state, the second state, and the third state, thus improving the IAB perception process.

[0179] Step S602: The first network element sends the first instruction information.

[0180] For example, the first network element sends first indication information to the first node, and correspondingly, the first node receives the first indication information from the first network element, wherein the first indication information includes IAB sensing mode information.

[0181] For example, when the first node is an IAB-donor, the IAB-donor includes IAB-donor-CU and IAB-donor-DU. The first node receives first indication information from the first network element, which may refer to the IAB-donor-CU within the IAB-donor receiving the first indication information. Optionally, this first indication information can be sent and received via the NG interface between the first network element and the first node.

[0182] For example, the first indication information may further include at least one of the following: identification information of a first node or identification information of a second node. The node identification information included in the first indication information is used to indicate the nodes that need to participate in the IAB sensing service, or the nodes that the first network element schedules to participate in the IAB sensing service. For example, if the first indication information includes the identification information of the first node and the identification information of the second node, it indicates that the nodes that the first network element schedules to participate in the IAB sensing service include the first node and the second node. Wherein, when the IAB sensing mode information in the first indication information indicates that the IAB sensing mode is IAB-side dual-base sensing, the first indication information may further include the identification information of a third node, which is used to indicate the nodes that need to participate in the IAB sensing service.

[0183] The above process can be understood as follows: when the IAB sensing mode is IAB uplink bibase sensing or IAB downlink bibase sensing, the first indication information includes the identification information of at least two nodes, indicating that at least two IAB nodes (e.g., the first node and the second node) participate in IAB sensing measurement; when the IAB sensing mode is IAB side-by-side bibase sensing, the first indication information includes the identification information of at least three nodes, indicating that at least three IAB nodes (e.g., the first node, the second node, and the third node) participate in IAB sensing measurement.

[0184] In the above method, the first network element determines the IAB sensing mode and sends the IAB sensing mode information through the first instruction information to notify the network devices with IAB function of the sensing mode that need to be completed collaboratively, which is conducive to realizing bi-base sensing between network devices with IAB function.

[0185] Step S603: The first node sends the first message.

[0186] For example, the first node sends first information to the second node, and correspondingly, the second node receives the first information from the first node. This first information includes IAB (Information and Technology Absorption Regulator) sensing mode information.

[0187] For example, when the first node is an IAB-donor, the IAB-donor includes IAB-donor-CU and IAB-donor-DU. The first node sending first information to the second node can refer to the IAB-donor-DU within the IAB-donor sending the first information. Optionally, this first information can be sent and received via the air interface between the first and second nodes.

[0188] In one possible implementation, the method further includes: a first node receiving first sensing mode type information; and the first node determining that IAB sensing mode information is available based on the first sensing mode type information.

[0189] The first sensing mode type (sensingStaticType) information is used to indicate bi-base sensing between network devices. Optionally, the sensing mode type information can be called a sensing mode indicator or a sensing mode indicator flag.

[0190] Optionally, determining that IAB sensing mode information is available can be replaced by describing it as determining that IAB sensing mode information is enabled, or it can also be described as determining that IAB sensing mode information is valid, or it can also be described as enabling IAB sensing mode information.

[0191] For example, the first sensing mode type information is used to indicate network device-to-network device bistatic sensing, referring to the above. Figure 4 According to the relevant description, the first sensing mode type information can be sensingStaticType = 1. Correspondingly, the availability of IAB sensing mode information is determined based on this first sensing mode type information. This can be understood as follows: IAB links are used for sensing measurements only when sensingStaticType = 1, i.e., the sensing mode is network device-to-network device bistatic sensing (such as BS-BSBistatic). In this case, IAB sensing mode information (IABsensingMode) is enabled. That is, when sensingStaticType is 0, 2, 3, 4, or 5, i.e., the sensing mode is other, IAB links cannot be used for sensing measurements, and IAB sensing mode type information cannot be enabled.

[0192] The above process can be understood as follows: there is a constraint relationship between the perception mode type information and the IAB perception mode information, such as... Figure 9 As shown, IAB sensing mode information is enabled only when the received sensing mode type information is sensingStaticType=1, that is, the sensing mode type information is the first sensing mode type information. In this case, the first information sent by the first node to the second node includes the IAB sensing mode information. When the received sensing mode information is sensingStaticType={0, 2, 3, 4, 5}, that is, the sensing mode type information is not the first sensing mode type information, such as the second sensing mode type information, IAB sensing mode information is not enabled. In this case, the first information sent by the first node to the second node does not include the IAB sensing mode information.

[0193] In the above method, the constraint relationship between the sensing mode type information and the IAB sensing mode information is used to determine that the current sensing mode is network device to network device bi-base sensing through the first sensing mode type information, and then the IAB sensing mode information is enabled. Conversely, when it is determined that the current sensing mode is not network device to network device bi-base sensing, the IAB sensing mode information cannot be enabled, which is beneficial for the subsequent network devices to normally realize bi-base sensing through the IAB link.

[0194] For example, the first information may also include the first perception mode type information.

[0195] In the above method, the first node determines the preconditions for executing subsequent steps by including the first sensing mode type information in the first information. That is, only when the sensing mode is network device to network device bi-base sensing can the subsequent bi-base sensing between network devices with IAB function be defined, which is conducive to ensuring the normal operation of subsequent bi-base sensing.

[0196] Optionally, the first information may further include resource configuration information for the sensed measurement signal, which indicates the signal characteristics of the sensed measurement signal, including at least one of the following: time-domain resources of the sensed measurement signal, frequency-domain resources of the sensed measurement signal, number of antenna ports, or periodicity of the sensed measurement signal. Optionally, the resource configuration information for the sensed measurement signal may also be referred to as IAB sensing resource configuration information (IABsensingResourceConfig).

[0197] The above describes how the first node sends first information to the second node after receiving the first indication information and the first perception mode type information. Both the first indication information and the first information include IAB perception mode information, which has three states. The following describes how the first node, the second node, and / or the third node perform different operations based on these three different states of the IAB perception mode information, specifically in the following three cases:

[0198] Case 1: The IAB sensing mode information is in the first state, indicating that the IAB sensing mode is IAB downlink dual-base sensing.

[0199] The first piece of information also includes: resource configuration information for sensing and measuring signals.

[0200] The method also includes:

[0201] The first node sends IAB sensing and measurement signals to the second node based on the resource configuration information of the sensing and measurement signals.

[0202] Accordingly, the second node receives the IAB sensing measurement signal from the first node based on the resource configuration information of the sensing measurement signal, and the second node performs sensing measurement based on the IAB sensing measurement signal to determine the IAB sensing result.

[0203] For example, when the first node is an IAB-donor and the second node is an IAB-node, the IAB-donor includes IAB-donor-CU and IAB-donor-DU, and the IAB-node includes IAB-node-MT and IAB-node-DU. The first node sends IAB sensing measurement signals to the second node based on resource configuration information of the sensing measurement signals; this can refer to the IAB-donor-DU in the IAB-donor sending the IAB sensing measurement signals. The second node receives the IAB sensing measurement signals from the first node based on resource configuration information of the sensing measurement signals; this can refer to the IAB-node-MT in the IAB-node receiving the IAB sensing measurement signals. Optionally, the IAB sensing measurement signals can be sent and received via the air interface between the first and second nodes.

[0204] For example, the first node sends an IAB sensing measurement signal to the second node, including: the first node sends the IAB sensing measurement signal to the sensing target, and the IAB sensing measurement signal is received by the second node after being reflected by the sensing target; correspondingly, the second node receives the IAB sensing measurement signal from the first node, including: the second node receives the IAB sensing measurement signal sent by the first node after being reflected by the sensing target.

[0205] For example, the first node sends the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal, including: the first node sends the IAB sensing measurement signal based on the time domain resources, frequency domain resources and the number of antenna ports in the resource configuration information of the sensing measurement signal; correspondingly, the second node receives the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal, including: the second node receives the IAB sensing measurement signal based on the time domain resources, frequency domain resources and the number of antenna ports in the resource configuration information of the sensing measurement signal.

[0206] For example, the second node determines the IAB sensing result based on the IAB sensing measurement signal by performing sensing measurement, including: the second node processes the IAB sensing measurement signal to obtain measurement quantities related to the sensing service (such as multipath delay information, departure angle information, arrival angle information, power information, signal-to-noise ratio information, Doppler information, etc.), and further processes the measurement quantities based on the bi-base sensing reconstruction algorithm to obtain the IAB sensing result (such as the scattering point position, velocity, target type, etc. of the sensing target).

[0207] In one example, assuming the first node is IAB-donor 1 and the second node is IAB-node 1, and the first sensing mode type information is sensingStaticType = 1 (meaning IAB sensing mode information is available), this IAB sensing mode information indicates that the IAB sensing mode is IAB downlink bistatic sensing, i.e., IABsensingMode = 0. In this case, IAB-donor 1 determines the sensing mode as network device-to-network device bistatic sensing based on sensingStaticType = 1. Under this premise, IAB-donor 1 determines the IAB sensing mode as IAB downlink bistatic sensing based on IABsensingMode = 0. Then, IAB-donor 1 determines the resource configuration information of the sensing measurement signal and sends first information to IAB-node 1 based on this resource configuration information. This first information includes the first sensing mode type information (sensingStaticType = 1), the IAB sensing mode information (IABsensingMode = 0), and the resource configuration information of the sensing measurement signal. IAB-donor 1 then sends information to IAB-node 1 based on the resource configuration information of the sensing measurement signal. 1. Send IAB sensing measurement signal. Correspondingly, after receiving the IAB sensing measurement signal, IAB-node 1 performs sensing measurement based on the IAB sensing measurement signal to determine the IAB sensing result.

[0208] The above method provides a method for configuring, transmitting, and measuring IAB sensing measurement signals when the IAB sensing mode is IAB downlink bibase sensing. This improves the IAB sensing process and enables bibase sensing between network devices with IAB functionality. This allows the network to flexibly select network devices with IAB functionality and IAB sensing methods that provide sensing services on the IAB link.

[0209] Scenario 2: The IAB sensing mode information is in the second state, assuming that the IAB sensing mode is IAB uplink dual-base sensing:

[0210] The first piece of information also includes: resource configuration information for sensing and measuring signals.

[0211] The method also includes:

[0212] The second node sends IAB sensing and measurement signals to the first node based on the resource configuration information of the sensing and measurement signals.

[0213] Accordingly, the first node receives the IAB sensing measurement signal from the second node based on the resource configuration information of the sensing measurement signal, and the first node performs sensing measurement based on the IAB sensing measurement signal to determine the IAB sensing result.

[0214] For example, when the first node is an IAB-donor and the second node is an IAB-node, the IAB-donor includes IAB-donor-CU and IAB-donor-DU, and the IAB-node includes IAB-node-MT and IAB-node-DU. The second node sends IAB sensing measurement signals to the first node based on resource configuration information of the sensing measurement signals; this can refer to IAB-node-MT in the IAB-node sending the IAB sensing measurement signals. The first node receives the IAB sensing measurement signals from the second node based on resource configuration information of the sensing measurement signals; this can refer to IAB-donor-DU in the IAB-donor receiving the IAB sensing measurement signals. Optionally, the IAB sensing measurement signals can be sent and received via the air interface between the first and second nodes.

[0215] For example, the second node sends an IAB sensing measurement signal to the first node, including: the second node sends the IAB sensing measurement signal to the sensing target, and the IAB sensing measurement signal is received by the first node after being reflected by the sensing target; correspondingly, the first node receives the IAB sensing measurement signal from the second node, including: the first node receives the IAB sensing measurement signal sent by the second node after being reflected by the sensing target.

[0216] For example, the second node sends the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal, including: the second node sends the IAB sensing measurement signal based on the time domain resources, frequency domain resources and the number of antenna ports in the resource configuration information of the sensing measurement signal; correspondingly, the first node receives the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal, including: the first node receives the IAB sensing measurement signal based on the time domain resources, frequency domain resources and the number of antenna ports in the resource configuration information of the sensing measurement signal.

[0217] For example, the first node determines the IAB sensing result based on the IAB sensing measurement signal by performing sensing measurement, including: the first node processes the IAB sensing measurement signal to obtain measurement quantities related to the sensing service (such as multipath delay information, departure angle information, arrival angle information, power information, signal-to-noise ratio information, Doppler information, etc.), and further processes the measurement quantities based on the bi-base sensing reconstruction algorithm to obtain the IAB sensing result (such as the scattering point position, velocity, target type, etc. of the sensing target).

[0218] In one example, assuming the first node is IAB-donor 1 and the second node is IAB-node 1, and the first sensing mode type information is sensingStaticType = 1, meaning IAB sensing mode information is available, this IAB sensing mode information indicates that the IAB sensing mode is IAB uplink bistatic sensing, i.e., IABsensingMode = 1. At this time, IAB-donor 1 determines the sensing mode as network device-to-network device bistatic sensing based on sensingStaticType = 1. Under this premise, IAB-donor 1 determines the IAB sensing mode as IAB uplink bistatic sensing based on IABsensingMode = 1. Then, IAB-donor 1 determines the resource configuration information of the sensing measurement signal and sends first information to IAB-node 1 based on the resource configuration information of the sensing measurement signal. This first information includes the first sensing mode type information (sensingStaticType = 1), the IAB sensing mode information (IABsensingMode = 1), and the resource configuration information of the sensing measurement signal. IAB-node 1 then sends information to IAB-donor 1 based on the resource configuration information of the sensing measurement signal. 1. Sends IAB sensing measurement signal. Correspondingly, after receiving the IAB sensing measurement signal, IAB-donor 1 performs sensing measurement based on the IAB sensing measurement signal to determine the IAB sensing result.

[0219] The above method provides a method for configuring, transmitting, and measuring IAB sensing measurement signals when the IAB sensing mode is IAB uplink bibase sensing. This improves the IAB sensing process and enables bibase sensing between network devices with IAB functionality. This allows the network to flexibly select network devices with IAB functionality and IAB sensing methods that provide sensing services on the IAB link.

[0220] Case 3: The IAB sensing mode information is in the third state, indicating that the IAB sensing mode is IAB lateral bipolar sensing.

[0221] The first information can be a first request message, which is used to notify the second node to perform IAB-side dual-base sensing.

[0222] The method further includes: after receiving the first information, the second node sends the second information to the third node, and correspondingly, the third node receives the second information from the second node. The second information includes at least one of the following: IAB sensing mode information, first sensing mode type information, or resource configuration information of the sensing measurement signal.

[0223] For example, when both the second and third nodes are IAB-nodes, each IAB-node includes IAB-node-MT and IAB-node-DU. The second node is IAB-node 1, and the third node is IAB-node 2. Sending second information from the second node to the third node can refer to IAB-node-DU in IAB-node 1 sending the second information, and the third node receiving the second information from the second node can refer to IAB-node-MT in IAB-node 2 receiving the second information. Optionally, the second information can be sent and received via the air interface between the second and third nodes.

[0224] In the above method, when the IAB sensing mode is IAB side-by-side bi-base sensing, the second node sends the second information, which is beneficial for subsequent nodes to perform IAB sensing based on the second information.

[0225] After the second node sends the second message, the operations performed by the second and third nodes are specifically described in two cases: Case 3a and Case 3b.

[0226] Case 3a: The method further includes: the second node sending the IAB sensing measurement signal to the third node based on the resource configuration information of the sensing measurement signal; correspondingly, the third node receiving the IAB sensing measurement signal from the second node based on the resource configuration information of the sensing measurement signal; and the third node performing sensing measurement based on the IAB sensing measurement signal to determine the IAB sensing result.

[0227] For example, when both the second and third nodes are IAB-nodes, each IAB-node includes IAB-node-MT and IAB-node-DU. The second node is IAB-node 1, and the third node is IAB-node 2. The second node sends the IAB sensing measurement signal to the third node based on the resource configuration information of the sensing measurement signal; this could mean that IAB-node-DU in IAB-node 1 sends the IAB sensing measurement signal. The third node receives the IAB sensing measurement signal from the second node based on the resource configuration information of the sensing measurement signal; this could mean that IAB-node-MT in IAB-node 2 receives the IAB sensing measurement signal. Optionally, the IAB sensing measurement signal can be sent and received via the air interface between the second and third nodes.

[0228] For example, the second node sends an IAB sensing measurement signal to the third node, including: the second node sends the IAB sensing measurement signal to the sensing target, and the IAB sensing measurement signal is received by the third node after being reflected by the sensing target; correspondingly, the third node receives the IAB sensing measurement signal from the second node, including: the third node receives the IAB sensing measurement signal sent by the second node after being reflected by the sensing target.

[0229] For example, the second node sends the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal, including: the second node sends the IAB sensing measurement signal based on the time domain resources, frequency domain resources and the number of antenna ports in the resource configuration information of the sensing measurement signal; correspondingly, the third node receives the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal, including: the third node receives the IAB sensing measurement signal based on the time domain resources, frequency domain resources and the number of antenna ports in the resource configuration information of the sensing measurement signal.

[0230] For example, the third node determines the IAB sensing result based on the IAB sensing measurement signal, including: the third node processes the IAB sensing measurement signal to obtain measurement quantities related to the sensing service (such as multipath delay information, departure angle information, arrival angle information, power information, signal-to-noise ratio information, Doppler information, etc.), and further processes the measurement quantities based on the bi-base sensing reconstruction algorithm to obtain the IAB sensing result (such as the scattering point position, velocity, target type, etc. of the sensing target).

[0231] In one example, for case 3a, assuming the first node is IAB-donor 1, the second node is IAB-node 1, and the third node is IAB-node 2, the first sensing mode type information is sensingStaticType = 1, meaning the IAB sensing mode information is available. This IAB sensing mode information indicates that the IAB sensing mode is IAB side-to-side bistatic sensing, i.e., IABsensingMode = 2. In this case, IAB-donor 1 determines the sensing mode as network device-to-network device bistatic sensing based on sensingStaticType = 1. Under this premise, IAB-donor 1 determines the IAB sensing mode as IAB side-to-side bistatic sensing based on IABsensingMode = 2. Therefore, IAB-donor 1 directly sends the first information to IAB-node 1. This first information includes the first sensing mode type information (sensingStaticType = 1) and the IAB sensing mode information (IABsensingMode = 0). 1. Based on the first sensing mode type information and IAB sensing mode information, determine the resource configuration information of the sensing measurement signal, and send second information to IAB-node 2 based on the resource configuration information of the sensing measurement signal. The second information includes the first sensing mode type information (sensingStaticType=1), IAB sensing mode information (IABsensingMode=2), and the resource configuration information of the sensing measurement signal. IAB-node 1 sends the IAB sensing measurement signal to IAB-donor 2 based on the resource configuration information of the sensing measurement signal. Correspondingly, after receiving the IAB sensing measurement signal, IAB-node 2 performs sensing measurement based on the IAB sensing measurement signal to determine the IAB sensing result.

[0232] Case 3b: The method further includes: the third node sending an IAB sensing measurement signal to the second node based on the resource configuration information of the sensing measurement signal; correspondingly, the second node receiving the IAB sensing measurement signal from the third node based on the resource configuration information of the sensing measurement signal; and the second node performing sensing measurement based on the IAB sensing measurement signal to determine the IAB sensing result.

[0233] For example, when both the second node and the third node are IAB-nodes, an IAB-node includes IAB-node-MT and IAB-node-DU. The second node is IAB-node 1, and the third node is IAB-node 2. The third node sends the IAB sensing measurement signal to the second node based on the resource configuration information of the sensing measurement signal. This can refer to IAB-node-MT in IAB-node 2 sending the IAB sensing measurement signal. The second node receives the IAB sensing measurement signal from the third node based on the resource configuration information of the sensing measurement signal. This can refer to IAB-node-DU in IAB-node 1 receiving the IAB sensing measurement signal. Optionally, the IAB sensing measurement signal can be sent and received through the air interface between the second node and the third node.

[0234] For example, the third node sends an IAB sensing measurement signal to the second node, including: the third node sends the IAB sensing measurement signal to the sensing target, and the IAB sensing measurement signal is received by the second node after being reflected by the sensing target; correspondingly, the second node receives the IAB sensing measurement signal from the third node, including: the second node receives the IAB sensing measurement signal sent by the third node after being reflected by the sensing target.

[0235] For example, the third node sends the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal, including: the third node sends the IAB sensing measurement signal based on the time domain resources, frequency domain resources and the number of antenna ports in the resource configuration information of the sensing measurement signal; correspondingly, the second node receives the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal, including: the second node receives the IAB sensing measurement signal based on the time domain resources, frequency domain resources and the number of antenna ports in the resource configuration information of the sensing measurement signal.

[0236] For example, the second node determines the IAB sensing result based on the IAB sensing measurement signal by performing sensing measurement, including: the second node processes the IAB sensing measurement signal to obtain measurement quantities related to the sensing service (such as multipath delay information, departure angle information, arrival angle information, power information, signal-to-noise ratio information, Doppler information, etc.), and further processes the measurement quantities based on the bi-base sensing reconstruction algorithm to obtain the IAB sensing result (such as the scattering point position, velocity, target type, etc. of the sensing target).

[0237] In one example, regarding scenario 3b, assuming the first node is IAB-donor 1, the second node is IAB-node 1, and the third node is IAB-node 2, the first sensing mode type information is sensingStaticType = 1, meaning IAB sensing mode information is available. This IAB sensing mode information indicates that the IAB sensing mode is IAB side-to-side bistatic sensing, i.e., IABsensingMode = 2. In this case, IAB-donor 1 determines the sensing mode as network device-to-network device bistatic sensing based on sensingStaticType = 1. Under this premise, IAB-donor 1 determines the IAB sensing mode as IAB side-to-side bistatic sensing based on IABsensingMode = 2. Therefore, IAB-donor 1 directly sends the first information to IAB-node 1. This first information includes the first sensing mode type information (sensingStaticType = 1) and the IAB sensing mode information (IABsensingMode = 0). 1. Based on the first sensing mode type information and IAB sensing mode information, determine the resource configuration information of the sensing measurement signal, and send second information to IAB-node 2 based on the resource configuration information of the sensing measurement signal. The second information includes the first sensing mode type information (sensingStaticType=1), IAB sensing mode information (IABsensingMode=2), and the resource configuration information of the sensing measurement signal. IAB-donor 2 sends the IAB sensing measurement signal to IAB-donor 1 based on the resource configuration information of the sensing measurement signal. Correspondingly, after receiving the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal, IAB-node 1 performs sensing measurement based on the IAB sensing measurement signal to determine the IAB sensing result.

[0238] It should be noted that in cases 1 and 2, the configuration process of the resource configuration information of the sensing and measurement signal can be completed by the first node, that is, the first node determines the resource configuration information of the sensing and measurement signal. In cases 3a and 3b, the configuration process of the resource configuration information of the sensing and measurement signal can be completed by the second node, that is, the second node determines the resource configuration information of the sensing and measurement signal.

[0239] The above method provides two methods for configuring, transmitting, and measuring IAB sensing measurement signals when the IAB sensing mode is IAB-side bibase sensing. This improves the IAB sensing process and enables bibase sensing between network devices with IAB functionality. It allows the network to flexibly select network devices with IAB functionality and IAB sensing methods that provide sensing services on the IAB link.

[0240] exist Figure 6 In the described method, the first network element determines the IAB sensing mode information and sends it to the first node through the first indication information. The first node sends first information including different content to other nodes according to the IAB sensing mode indicated by the IAB sensing mode information, thereby notifying other nodes to perform different steps to collaboratively complete the IAB sensing measurement, thereby realizing bi-base sensing among network devices with IAB functionality. This is beneficial for collaborative sensing among network devices with IAB functionality. At the same time, for different IAB sensing modes, various methods for configuring, sending and measuring sensing measurement signals are provided, enabling the network to flexibly select network devices with IAB functionality and IAB sensing methods that provide sensing services on the IAB link.

[0241] Please see Figure 10 , Figure 10 This is a flowchart of another communication method provided in an embodiment of this application. The communication system includes a first network element, a first node, and a second node. Figure 10 The embodiment described above uses a first network element as the core network element, a first node as an IAB-donor, and a second node as an IAB-node. The IAB-donor includes IAB-donor-CU and IAB-donor-DU, and the IAB-node includes IAB-node-MT and IAB-node-DU. The method includes, but is not limited to, the following steps:

[0242] Step S1001: The core network element sends the first instruction information.

[0243] For example, the core network element sends first indication information to the IAB-donor-CU in the IAB-donor, and correspondingly, the IAB-donor-CU in the IAB-donor receives the first indication information from the core network element. This first indication information includes IAB sensing mode information, which is a first state indicating that the IAB sensing mode is IAB downlink dual-base sensing. For details, please refer to the description of the IAB sensing mode information in step S601.

[0244] For example, the first indication information also includes the identification information of the first node and the identification information of the second node. For details, please refer to the relevant description of the first indication information in step S602.

[0245] Step S1002: The IAB-donor determines the resource configuration information for the sensing measurement signal.

[0246] The resource configuration information of the sensing and measurement signal is used to indicate the signal characteristics of the sensing and measurement signal, including at least one of the following: the time-domain resources of the sensing and measurement signal, the frequency-domain resources of the sensing and measurement signal, the number of antenna ports, or the periodicity of the sensing and measurement signal. For details, please refer to the relevant description of the resource configuration information of the sensing and measurement signal in step S603.

[0247] In one possible implementation, the method further includes: the IAB-donor receiving first sensing mode type information; and the IAB-donor determining that IAB sensing mode information is available based on the first sensing mode type information.

[0248] The first sensing mode type information is used to indicate network device-to-network device bi-base sensing. For details, please refer to the description of the first sensing mode type information in step S603.

[0249] Step S1003: The IAB-donor-DU in the IAB-donor sends the first message.

[0250] For example, the IAB-donor-DU in the IAB-donor sends first information to the IAB-node-MT in the IAB-node. Correspondingly, the IAB-node-MT in the IAB-node receives the first information from the IAB-donor-DU in the IAB-donor. This first information includes: IAB sensing mode information. Optionally, the first information may also include at least one of the following: first sensing mode type information or resource configuration information for sensing measurement signals. For details, please refer to the relevant description in step S603.

[0251] Step S1004: The IAB-donor-DU in the IAB-donor sends the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal.

[0252] For example, the IAB-donor-DU in the IAB-donor sends the IAB sensing measurement signal to the IAB-node-MT in the IAB-node based on the resource configuration information of the sensing measurement signal. Correspondingly, the IAB-node-MT in the IAB-node receives the IAB sensing measurement signal from the IAB-donor-DU in the IAB-donor based on the resource configuration information of the sensing measurement signal. For details, please refer to the relevant description in Case 1 of step S603.

[0253] Step S1005: The IAB-node-MT in the IAB-node performs sensing measurements based on the IAB sensing measurement signals to determine the IAB sensing results.

[0254] For details, please refer to the relevant description in Case 1 of step S603.

[0255] exist Figure 10 In the described method, the core network element, i.e., the first network element, determines the IAB sensing mode information and sends it to the IAB-donor, i.e., the first node, through the first indication information. The IAB-donor, according to the IAB sensing mode indicated by the IAB sensing mode information, sends the first information to the IAB-node, i.e., the second node, thereby notifying the second node to perform the corresponding steps to collaboratively complete the IAB sensing measurement, thus realizing bi-base sensing among network devices with IAB functionality. This is beneficial for collaborative sensing among network devices with IAB functionality. At the same time, it provides the configuration, transmission, and measurement methods for sensing measurement signals when the IAB sensing mode is IAB downlink bi-base sensing, enabling the network to flexibly select network devices with IAB functionality and IAB sensing methods that provide sensing services on the IAB link.

[0256] Please see Figure 11 , Figure 11 This is a flowchart of another communication method provided in an embodiment of this application. The communication system includes a first network element, a first node, and a second node. Figure 11 The embodiment described above uses a first network element as the core network element, a first node as an IAB-donor, and a second node as an IAB-node. The IAB-donor includes IAB-donor-CU and IAB-donor-DU, and the IAB-node includes IAB-node-MT and IAB-node-DU. The method includes, but is not limited to, the following steps:

[0257] Step S1101: The core network element sends the first instruction information.

[0258] For example, the core network element sends first indication information to the IAB-donor-CU in the IAB-donor, and correspondingly, the IAB-donor-CU in the IAB-donor receives the first indication information from the core network element. This first indication information includes IAB sensing mode information, which is a second state, indicating that the IAB sensing mode is IAB uplink dual-base sensing. For details, please refer to the description of the IAB sensing mode information in step S601.

[0259] For example, the first indication information also includes the identification information of the first node and the identification information of the second node. For details, please refer to the relevant description of the first indication information in step S602.

[0260] Step S1102: The IAB-donor determines the resource configuration information for the sensing measurement signal.

[0261] The resource configuration information of the sensing and measurement signal is used to indicate the signal characteristics of the sensing and measurement signal, including at least one of the following: the time-domain resources of the sensing and measurement signal, the frequency-domain resources of the sensing and measurement signal, the number of antenna ports, or the periodicity of the sensing and measurement signal. For details, please refer to the relevant description of the resource configuration information of the sensing and measurement signal in step S603.

[0262] In one possible implementation, the method further includes: the IAB-donor receiving first sensing mode type information; and the IAB-donor determining that IAB sensing mode information is available based on the first sensing mode type information.

[0263] The first sensing mode type information is used to indicate network device-to-network device bi-base sensing. For details, please refer to the description of the first sensing mode type information in step S603.

[0264] Step S1103: The IAB-donor-DU in the IAB-donor sends the first message.

[0265] For example, the IAB-donor-DU in the IAB-donor sends first information to the IAB-node-MT in the IAB-node, and correspondingly, the IAB-node-MT in the IAB-node receives the first information from the IAB-donor-DU in the IAB-donor. The first information includes: IAB sensing mode information; optionally, the first information may also include at least one of the following: first sensing mode type information or resource configuration information of the sensing measurement signal. For details, please refer to the relevant description in step S603.

[0266] Step S1104: The IAB-node-MT in the IAB-node sends the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal.

[0267] For example, the IAB-node-MT in the IAB-node sends the IAB sensing measurement signal to the IAB-donor-DU in the IAB-donor based on the resource configuration information of the sensing measurement signal. Correspondingly, the IAB-donor-DU in the IAB-donor receives the IAB sensing measurement signal from the IAB-node-MT in the IAB-node based on the resource configuration information of the sensing measurement signal. For details, please refer to the relevant description in Case 2 of step S603.

[0268] Step S1105: The IAB-donor-DU in the IAB-donor performs sensing measurements based on the IAB sensing measurement signal to determine the IAB sensing result.

[0269] For details, please refer to the relevant description in case 2 of step S603.

[0270] exist Figure 11 In the described method, the core network element, i.e., the first network element, determines the IAB sensing mode information and sends it to the IAB-donor, i.e., the first node, through the first indication information. The IAB-donor, according to the IAB sensing mode indicated by the IAB sensing mode information, sends the first information to the IAB-node, i.e., the second node, thereby notifying the second node to perform the corresponding steps to collaboratively complete the IAB sensing measurement, thus realizing bi-base sensing among network devices with IAB functionality. This is beneficial for collaborative sensing among network devices with IAB functionality. At the same time, it provides the configuration, transmission, and measurement methods for sensing measurement signals when the IAB sensing mode is IAB uplink bi-base sensing, enabling the network to flexibly select network devices with IAB functionality and IAB sensing methods that provide sensing services on the IAB link.

[0271] Please see Figure 12 , Figure 12 This is a flowchart of another communication method provided in an embodiment of this application. The communication system includes a first network element, a first node, a second node, and a third node. Figure 12 The embodiment described above uses a first network element as the core network element, a first node as an IAB-donor, a second node as IAB-node 1, and a third node as IAB-node 2. The IAB-donor includes IAB-donor-CU and IAB-donor-DU, and both IAB-node 1 and IAB-node 2 include IAB-node-MT and IAB-node-DU. The method includes, but is not limited to, the following steps:

[0272] Step S1201: The core network element sends the first instruction information.

[0273] For example, the core network element sends first indication information to the IAB-donor-CU in the IAB-donor, and correspondingly, the IAB-donor-CU in the IAB-donor receives the first indication information from the core network element. This first indication information includes IAB sensing mode information, which is a third state, indicating that the IAB sensing mode is IAB-side dual-base sensing. For details, please refer to the description of the IAB sensing mode information in step S601.

[0274] For example, the first indication information also includes the identification information of the first node, the identification information of the second node, and the identification information of the third node. For details, please refer to the relevant description of the first indication information in step S602.

[0275] Step S1202: The IAB-donor-DU in the IAB-donor sends the first message.

[0276] For example, the IAB-donor-DU in the IAB-donor sends first information to the IAB-node-DU in IAB-node 1, and correspondingly, the IAB-node-DU in IAB-node 1 receives the first information from the IAB-donor-DU in the IAB-donor. This first information includes IAB sensing mode information. For details, please refer to the relevant description in step S603.

[0277] In one possible implementation, the method further includes: the IAB-donor receiving first sensing mode type information; and the IAB-donor determining that IAB sensing mode information is available based on the first sensing mode type information.

[0278] The first sensing mode type information is used to indicate bi-base sensing between network devices. For example, the first information may also include the first sensing mode type information. See step S603 for a detailed description of the first sensing mode type information.

[0279] Step S1203: IAB-node 1 determines the resource configuration information for sensing measurement signals.

[0280] The resource configuration information of the sensing and measurement signal is used to indicate the signal characteristics of the sensing and measurement signal, including at least one of the following: the time-domain resources of the sensing and measurement signal, the frequency-domain resources of the sensing and measurement signal, the number of antenna ports, or the periodicity of the sensing and measurement signal. For details, please refer to the relevant description of the resource configuration information of the sensing and measurement signal in step S603.

[0281] Step S1204: IAB-node-DU in IAB-node 1 sends the second information.

[0282] For example, the IAB-node-DU in IAB-node 1 sends second information to the IAB-node-MT in IAB-node 2, and correspondingly, the IAB-node-MT in IAB-node 2 receives the second information from the IAB-node-DU in IAB-node 1. The first information includes IAB sensing mode information. Optionally, the second information may also include at least one of the following: first sensing mode type information or resource configuration information of the sensing measurement signal. See the relevant description in step S603 for details.

[0283] Step S1205A: The IAB-node-DU in IAB-node 1 sends the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal.

[0284] For example, the IAB-node-DU in IAB-node 1 sends the IAB sensing measurement signal to the IAB-node-MT in IAB-node 2 based on the resource configuration information of the sensing measurement signal. Correspondingly, the IAB-node-MT in IAB-node 2 receives the IAB sensing measurement signal from the IAB-node-DU in IAB-node 1 based on the resource configuration information of the sensing measurement signal. For details, please refer to the relevant description in case 3a of step S603.

[0285] Step S1206A: The IAB-node-MT in IAB-node 2 performs sensing measurements based on the IAB sensing measurement signals to determine the IAB sensing results.

[0286] For details, please refer to the relevant description in case 3a of step S603.

[0287] Step S1205B: The IAB-node-MT in IAB-node 2 sends the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal.

[0288] For example, the IAB-node-MT in IAB-node 2 sends IAB sensing measurement signals to the IAB-node-DU in IAB-node 1 based on the resource configuration information of the sensing measurement signals. Correspondingly, the IAB-node-DU in IAB-node 1 receives the IAB sensing measurement signals from the IAB-node-MT in IAB-node 2 based on the resource configuration information of the sensing measurement signals. For details, please refer to the relevant description in case 3b of step S603.

[0289] Step S1206B: The IAB-node-DU in IAB-node 1 performs sensing measurements based on the IAB sensing measurement signals to determine the IAB sensing results.

[0290] For details, please refer to the relevant description in case 3b of step S603.

[0291] In the above description, steps S1205A and S1206A are one implementation method, in which the second node (i.e., IAB-node1) sends a sensing measurement signal, and the third node (i.e., IAB-node2) receives the sensing measurement signal and performs sensing measurement based on the sensing measurement signal to obtain the IAB sensing result; steps S1205B and S1206B are another implementation method, in which the third node (i.e., IAB-node2) sends a sensing measurement signal, and the second node (i.e., IAB-node1) receives the sensing measurement signal and performs sensing measurement based on the sensing measurement signal to obtain the IAB sensing result.

[0292] exist Figure 12 In the described method, the core network element, i.e., the first network element, determines the IAB sensing mode information and sends it to the IAB-donor, i.e., the first node, through the first indication information. The IAB-donor, according to the IAB sensing mode indicated by the IAB sensing mode information, sends the first information to IAB-node 1, i.e., the second node. After receiving the first information, IAB-node 1 sends the second information to IAB-node 2, i.e., the third node, thereby enabling the third node to perform the corresponding steps to cooperate with the second node to complete the IAB sensing measurement, thus realizing bi-base sensing between network devices with IAB functionality. This is beneficial for collaborative sensing between network devices with IAB functionality. At the same time, it provides the configuration, transmission, and measurement methods for sensing measurement signals when the IAB sensing mode is IAB-side bi-base sensing, enabling the network to flexibly select network devices with IAB functionality and IAB sensing methods that provide sensing services on the IAB link.

[0293] above Figure 6 , Figure 10 , Figure 11 as well as Figure 12 The first type of sensing mode has been described, where the configuration signaling interaction for sensing measurements and the sensing measurement process occur entirely between IAB nodes. The second type of sensing mode will be described below, where the transmission of configuration signaling for sensing measurement signals occurs between the IAB-donor and IAB-node, while the transmission of sensing measurement signals is independent of the IAB protocol. Figure 13 As shown, the details are as follows:

[0294] Please see Figure 13 , Figure 13This is a flowchart of another communication method provided in an embodiment of this application. The communication system includes a first network element, a first node, a second node, and a terminal device. Figure 13 The embodiment described above uses a first network element as the core network element, a first node as an IAB-donor, and a second node as an IAB-node. The IAB-donor includes IAB-donor-CU and IAB-donor-DU, and the IAB-node includes IAB-node-MT and IAB-node-DU. The method includes, but is not limited to, the following steps:

[0295] Step S1301: The core network element sends the first instruction information.

[0296] For example, the core network element sends first indication information to the IAB-donor-CU in the IAB-donor, and correspondingly, the IAB-donor-CU in the IAB-donor receives the first indication information from the core network element. This first indication information includes IAB perception mode information, which is used to indicate the IAB perception mode. For details, please refer to the description of the IAB perception mode information in step S601.

[0297] Step S1302: The IAB-donor determines the resource configuration information for the sensing measurement signal.

[0298] The resource configuration information of the sensing and measurement signal is used to indicate the signal characteristics of the sensing and measurement signal, including at least one of the following: the time domain resources of the sensing and measurement signal, the frequency domain resources of the sensing and measurement signal, the number of antenna ports, or the periodicity of the sensing and measurement signal.

[0299] In one possible implementation, the method further includes: the IAB-donor receiving second sensing mode type information; and the IAB-donor determining that the IAB sensing mode information is unavailable based on the second sensing mode type information.

[0300] The second sensing mode type information (sensingStaticType) is used to indicate sensing modes other than network device-to-network device bistatic sensing. Specifically, the second sensing mode type information indicates one of the following: terminal device single-base sensing, network device single-base sensing, network device-to-terminal device bistatic sensing, terminal device-to-terminal device bistatic sensing, or terminal device-to-network device bistatic sensing. Optionally, the sensing mode type information can be called a sensing mode indicator or a sensing mode indicator flag.

[0301] Optionally, determining that IAB perception mode information is unavailable can be replaced with describing that IAB perception mode information is not enabled, or it can also be described as determining that IAB perception mode information is invalid, or it can also be described as not enabling IAB perception mode information.

[0302] For example, the second sensing mode type information is used to indicate sensing modes other than network device-to-network device bistatic sensing, referring to the above. Figure 4 The relevant description states that when the second sensing mode type information indicates single-base sensing of a network device, such as single-base sensing of a base station, the second sensing mode type information can be sensingStaticType = 0; when the second sensing mode type information indicates single-base sensing of a terminal device, such as single-base sensing of a user equipment, the second sensing mode type information can be sensingStaticType = 4; when the second sensing mode type information indicates dual-base sensing from a network device to a terminal device, such as dual-base sensing from a base station to a user equipment, the second sensing mode type information can be sensingStaticType = 2; when the second sensing mode type information indicates dual-base sensing from a network device to a terminal device, such as dual-base sensing from a base station to a user equipment, the second sensing mode type information can be sensingStaticType = 2. The first sensing mode type information indicates that the IAB sensing mode information is unavailable. This means that when the second sensing mode type information indicates terminal-to-terminal bistatic sensing (e.g., user equipment-to-base station bistatic sensing), the second sensing mode type information can be sensingStaticType=3. When the second sensing mode type information indicates terminal-to-terminal bistatic sensing (e.g., user equipment-to-user equipment bistatic sensing), the second sensing mode type information can be sensingStaticType=5. Correspondingly, based on this first sensing mode type information, it is determined that the IAB sensing mode information is unavailable. This can be understood as follows: IAB links are used for sensing measurements only when sensingStaticType=1, i.e., the sensing mode is website-to-website bistatic sensing (e.g., BS-BS Bistatic). In this case, IAB sensing mode information (IABsensingMode) is enabled. That is, when sensingStaticType is 0, 2, 3, 4, or 5, i.e., the sensing mode is other, IAB links cannot be used for sensing measurements, and IAB sensing mode type information cannot be enabled.

[0303] The above process can be understood as follows: there is a constraint relationship between the perception mode type information and the IAB perception mode information, such as... Figure 9As shown, IAB sensing mode information is enabled only when the received sensing mode type information is sensingStaticType=1, that is, the sensing mode type information is the first sensing mode type information. In this case, the first information sent by the first node (IAB-donor) to the second node (IAB-node) includes the IAB sensing mode information. When the received sensing mode information is sensingStaticType={0, 2, 3, 4, 5}, that is, the sensing mode type information is not the first sensing mode type information, such as the second sensing mode type information, IAB sensing mode information is not enabled. In this case, the first information sent by the first node (IAB-donor) to the second node (IAB-node) does not include the IAB sensing mode information.

[0304] Step S1303: The IAB-donor-DU in the IAB-donor sends the first message.

[0305] For example, the IAB-donor-DU in the IAB-donor sends first information to the IAB-node-DU in the IAB-node, and correspondingly, the IAB-node-DU in the IAB-node receives the first information from the IAB-donor-DU in the IAB-donor. This first information includes the second sensing mode type information and resource configuration information for the sensing measurement signal.

[0306] Step S1304A: The IAB-node-DU in the IAB-node performs sensing measurements based on the resource configuration information of the sensing measurement signals to determine the IAB sensing results.

[0307] In one example, the IAB-node-DU in the IAB-node sends IAB sensing measurement signals based on resource configuration information of the sensing measurement signals, and then receives IAB sensing measurement signals reflected by the sensing target to determine the IAB sensing results.

[0308] Step S1304B: The IAB-node-DU in the IAB-node and the terminal device perform sensing measurements based on the resource configuration information of the sensing measurement signals to determine the IAB sensing results.

[0309] In one example, the IAB-node-DU in the IAB-node sends an IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal. This IAB sensing measurement signal is reflected by the sensing target and received by the terminal device. The terminal device then determines the IAB sensing result based on the received IAB sensing measurement signal reflected by the sensing target.

[0310] In another example, the terminal device sends an IAB sensing measurement signal based on resource configuration information of the sensing measurement signal. This IAB sensing measurement signal is reflected by the sensing target and received by the IAB-node-DU in the IAB-node. Subsequently, the IAB-node-DU in the IAB-node determines the IAB sensing result based on the received IAB sensing measurement signal reflected by the sensing target.

[0311] In the above description, step S1304A is one implementation method, in which the second node (i.e., IAB-node) performs single-base sensing, and determines the IAB sensing result by sending and receiving sensing measurement signals. Step S1304B is another implementation method, in which the second node (i.e., IAB-node) and the terminal device perform dual-base sensing, with one side sending sensing measurement signals and the other side receiving sensing measurement signals and obtaining the IAB sensing result based on the sensing measurement signals.

[0312] exist Figure 13 In the described method, the IAB-donor determines that the perception mode is not bi-basic perception between network devices based on the IAB perception mode information sent by the core network element (i.e., the first network element) and the received second perception mode type information. Then, it instructs the IAB-node (i.e., the second node) to perform the corresponding steps, providing a method for implementing the second type of perception mode and realizing "non-IAB perception with the participation of IAB nodes" between network devices.

[0313] above Figure 13 The second type of sensing mode has been described, where the transmission of measurement signal configuration signaling occurs through interaction between the IAB-donor and IAB-node, while the transmission of the measurement signal itself is independent of the IAB protocol. The third type of sensing mode will be described below, where the transmission of both the configuration signaling for sensing measurement signals and the transmission of the sensing measurement signals themselves are independent of the IAB protocol. Figure 14 As shown, the details are as follows:

[0314] Please see Figure 14 , Figure 14 This is a flowchart of another communication method provided in an embodiment of this application. The communication system includes a first network element, a first node, and a terminal device. Figure 14 The embodiment described above takes the first network element as the core network element and the first node as the IAB-donor, wherein the IAB-donor includes IAB-donor-CU and IAB-donor-DU as examples. The method includes, but is not limited to, the following steps:

[0315] Step S1401: The core network element sends the first instruction information.

[0316] For example, the core network element sends first indication information to the IAB-donor-CU in the IAB-donor, and correspondingly, the IAB-donor-CU in the IAB-donor receives the first indication information from the core network element. This first indication information includes IAB perception mode information, which is used to indicate the IAB perception mode. For details, please refer to the description of the IAB perception mode information in step S601.

[0317] For example, the first indication information also includes the identification information of the first node. For details, please refer to the relevant description of the first indication information in step S602.

[0318] Step S1402: The IAB-donor determines the resource configuration information for the sensing measurement signal.

[0319] The resource configuration information of the sensing and measurement signal is used to indicate the signal characteristics of the sensing and measurement signal, including at least one of the following: the time domain resources of the sensing and measurement signal, the frequency domain resources of the sensing and measurement signal, the number of antenna ports, or the periodicity of the sensing and measurement signal.

[0320] In one possible implementation, the method further includes: the IAB-donor receiving second sensing mode type information; and the IAB-donor determining that the IAB sensing mode information is unavailable based on the second sensing mode type information.

[0321] The second sensing mode type information (sensingStaticType) is used to indicate sensing modes other than network device-to-network device bistatic sensing. Specifically, the second sensing mode type information indicates one of the following: terminal device single-base sensing, network device single-base sensing, network device-to-terminal device bistatic sensing, terminal device-to-terminal device bistatic sensing, or terminal device-to-network device bistatic sensing. For details, please refer to the relevant description in step S1302; it will not be repeated here.

[0322] Step S1403A: The IAB-donor-DU in the IAB-donor performs sensing measurements based on the resource configuration information of the sensing measurement signal to determine the IAB sensing result.

[0323] In one example, the IAB-donor-DU in the IAB-donor sends the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal, and then receives the IAB sensing measurement signal reflected by the sensing target to determine the IAB sensing result.

[0324] Step S1403B: The IAB-donor-DU in the IAB-donor and the terminal device perform sensing measurements based on the resource configuration information of the sensing measurement signals to determine the IAB sensing results.

[0325] In one example, the IAB-donor-DU in the IAB-donor sends an IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal. This IAB sensing measurement signal is reflected by the sensing target and received by the terminal device. The terminal device then determines the IAB sensing result based on the received IAB sensing measurement signal reflected by the sensing target.

[0326] In another example, the terminal device sends an IAB sensing measurement signal based on resource configuration information of the sensing measurement signal. This IAB sensing measurement signal is reflected by the sensing target and received by the IAB-donor-DU in the IAB-donor. Subsequently, the IAB-donor-DU in the IAB-donor determines the IAB sensing result based on the received IAB sensing measurement signal reflected by the sensing target.

[0327] In the above description, step S1403A is one implementation method, in which the first node (i.e., IAB-donor) performs single-base sensing, and determines the IAB sensing result by sending and receiving sensing measurement signals. Step S1403B is another implementation method, in which the first node (i.e., IAB-donor) and the terminal device perform dual-base sensing, with one side sending sensing measurement signals and the other side receiving sensing measurement signals and obtaining the IAB sensing result based on the sensing measurement signals.

[0328] exist Figure 14 In the described method, the IAB-donor determines that the perception mode is not bi-basic perception between network devices based on the IAB perception mode information sent by the core network element (i.e., the first network element) and the received second perception mode type information, and directly executes the corresponding steps, providing a method for implementing the third type of perception mode, and realizing "non-IAB perception with IAB node participation" between network devices.

[0329] The methods of the embodiments of this application have been described in detail above, and the apparatus of the embodiments of this application is provided below.

[0330] Please see Figure 15 , Figure 15This is a schematic diagram of the structure of a communication device 1500 provided in an embodiment of this application. The communication device 1500 may include modules, units, or means that correspond one-to-one with the methods / operations / steps / actions performed by the terminal device or network device in the above method embodiments. The modules, units, or means may be hardware circuits, software, or a combination of hardware circuits and software.

[0331] In one possible implementation, the communication device 1500 may include a processing unit 1501 and a transceiver unit 1502, the specific details of which are as follows:

[0332] The processing unit 1501 is used for data processing. The transceiver unit 1502 can implement corresponding communication functions. The transceiver unit 1502 can also be called a communication interface or a communication module.

[0333] Optionally, the communication device 1500 may further include a storage unit, which can be used to store instructions and / or data. The processing unit 1501 can read the instructions and / or data in the storage module to enable the implementation of the aforementioned method embodiments.

[0334] Optionally, the transceiver unit 1502 may include a sending unit and a receiving unit. The sending unit is used to perform the sending operation in the above method embodiments. The receiving unit is used to perform the receiving operation in the above method embodiments.

[0335] It should be noted that the communication device 1500 may include a transmitting unit but not a receiving unit. Alternatively, the communication device 1500 may include a receiving unit but not a transmitting unit. Specifically, it depends on whether the above-described scheme executed by the communication device 1500 includes both transmitting and receiving actions.

[0336] Optionally, the communication device 1500 is used to perform the above. Figure 6 , Figure 10 , Figure 11 and Figure 12 The action performed by the first node in the illustrated embodiment. See the above for details. Figure 6 , Figure 10 , Figure 11 and Figure 12 The relevant descriptions in the illustrated embodiments will not be elaborated here. For example, the communication device 1500 is used to execute the following scheme: the transceiver unit 1502 is used to receive first indication information, the first indication information including access backhaul integrated IAB sensing mode information, the IAB sensing mode information being used to indicate the IAB sensing mode; the transceiver unit 1502 is used to send first information, the first information including the IAB sensing mode information.

[0337] In one possible implementation, the transceiver unit 1502 is further configured to receive first sensing mode type information, which is used to indicate network device-to-network device bibase sensing; the processing unit 1501 is further configured to determine the availability of the IAB sensing mode information based on the first sensing mode type information.

[0338] In another possible implementation, the first information also includes the first perception mode type information.

[0339] In another possible implementation, when the IAB sensing mode information is in the first state, the IAB sensing mode information indicates that the IAB sensing mode is IAB downlink bibase sensing.

[0340] In another possible implementation, the first information also includes the first sensing mode type information and the resource configuration information of the sensing measurement signal. The transceiver unit 1502 is further configured to send the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal.

[0341] In another possible implementation, when the IAB sensing mode information is in the second state, the IAB sensing mode information indicates that the IAB sensing mode is IAB uplink bibase sensing.

[0342] In another possible implementation, the first information also includes resource configuration information of the sensing measurement signal. The transceiver unit 1502 is further configured to receive the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal. The processing unit 1501 is further configured to perform sensing measurement based on the IAB sensing measurement signal to determine the IAB sensing result.

[0343] In another possible implementation, when the IAB sensing mode information is in the third state, the IAB sensing mode information indicates that the IAB sensing mode is IAB lateral bibase sensing.

[0344] It should be noted that the implementation and beneficial effects of each module can be found by referring to [the relevant documentation / reference]. Figure 6 , Figure 10 , Figure 11 and Figure 12 The corresponding description of the method embodiments shown.

[0345] Optionally, the communication device 1500 is used to perform the above. Figure 6 , Figure 10 , Figure 11 and Figure 12 The action performed by the second node in the illustrated embodiment. See the above for details. Figure 6 , Figure 10 , Figure 11 and Figure 12The relevant descriptions in the illustrated embodiments will not be elaborated here. For example, the communication device 1500 is used to execute the following scheme: the transceiver unit 1502 is used to receive first information, the first information including access backhaul integrated IAB sensing mode information, the IAB sensing mode information being used to indicate the IAB sensing mode.

[0346] In one possible implementation, the first information further includes first sensing mode type information, which is used to indicate bi-base sensing from network device to network device.

[0347] In another possible implementation, when the IAB sensing mode information is in the first state, the IAB sensing mode information indicates that the IAB sensing mode is IAB downlink bibase sensing.

[0348] In another possible implementation, the first information also includes resource configuration information of the sensing measurement signal. The transceiver unit 1502 is further configured to receive the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal. The processing unit 1501 is further configured to perform sensing measurement based on the IAB sensing measurement signal to determine the IAB sensing result.

[0349] In another possible implementation, when the IAB sensing mode information is in the second state, the IAB sensing mode information indicates that the IAB sensing mode is IAB uplink bibase sensing.

[0350] In another possible implementation, the first information also includes resource configuration information for the sensing measurement signal, and the transceiver unit 1502 is further configured to send the IAB sensing measurement signal based on the resource configuration information for the sensing measurement signal.

[0351] In another possible implementation, when the IAB sensing mode information is in the third state, the IAB sensing mode information indicates that the IAB sensing mode is IAB lateral bibase sensing.

[0352] In another possible implementation, the transceiver unit 1502 is further configured to transmit second information, which includes at least one of the following: the IAB sensing mode information, the first sensing mode type information, or resource configuration information of the sensing measurement signal.

[0353] In another possible implementation, the transceiver unit 1502 is also used to send the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal.

[0354] In another possible implementation, the transceiver unit 1502 is further configured to receive the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal; the processing unit 1501 is further configured to perform sensing measurement based on the IAB sensing measurement signal to determine the IAB sensing result.

[0355] It should be noted that the implementation and beneficial effects of each module can be found by referring to [the relevant documentation / reference]. Figure 6 , Figure 10 , Figure 11 and Figure 12 The corresponding description of the method embodiments shown.

[0356] Optionally, the communication device 1500 is used to perform the above. Figure 6 , Figure 10 , Figure 11 and Figure 12 The actions performed by the first network element in the illustrated embodiment are shown above. For details, please refer to the above. Figure 6 , Figure 10 , Figure 11 and Figure 12 The relevant descriptions in the illustrated embodiments will not be elaborated here. For example, the communication device 1500 is used to execute the following scheme: the processing unit 1501 is used to determine the access backhaul integrated IAB sensing mode information, which is used to indicate the IAB sensing mode; the transceiver unit 1502 is used to send first indication information, which includes the IAB sensing mode information.

[0357] It should be noted that the implementation and beneficial effects of each module can be found by referring to [the relevant documentation / reference]. Figure 6 , Figure 10 , Figure 11 and Figure 12 The corresponding description of the method embodiments shown.

[0358] Optionally, the communication device 1500 is used to perform the above. Figure 6 , Figure 10 , Figure 11 and Figure 12 The action performed by the third node in the illustrated embodiment. See the above for details. Figure 6 , Figure 10 , Figure 11 and Figure 12The relevant descriptions in the illustrated embodiments will not be elaborated here. For example, the communication device 1500 is used to execute the following scheme: the transceiver unit 1502 is used to receive second information, the second information including at least one of the following: access backhaul integrated IAB sensing mode information, first sensing mode type information, or resource configuration information of sensing measurement signals, the IAB sensing mode information being used to indicate the IAB sensing mode, and the first sensing mode type information being used to indicate network device-to-network device bi-base sensing.

[0359] In one possible implementation, the transceiver unit 1502 is further configured to receive the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal; the processing unit 1501 is further configured to perform sensing measurement based on the IAB sensing measurement signal to determine the IAB sensing result.

[0360] In another possible implementation, the transceiver unit 1502 is also used to send the IAB sensing measurement signal based on the resource configuration information of the sensing measurement signal.

[0361] It should be noted that the implementation and beneficial effects of each module can be found by referring to [the relevant documentation / reference]. Figure 6 , Figure 10 , Figure 11 and Figure 12 The corresponding description of the method embodiments shown is provided below. The module division in the embodiments of this application is illustrative and is merely a logical functional division; other division methods may be used in actual implementation.

[0362] The processing unit 1501 in the above embodiments can be implemented by at least one processor or processor-related circuitry. The transceiver unit 1502 can be implemented by a transceiver or transceiver-related circuitry. The transceiver unit 1502 can also be referred to as a communication module or communication interface. The storage module can be implemented by at least one memory.

[0363] Please see Figure 16 , Figure 16 This is a structural schematic diagram of a communication device 1600 provided in an embodiment of this application. The communication device 1600 may include modules, units, or means that correspond one-to-one with the methods / operations / steps / actions performed by the first node, second node, first network element, or third node in the above method embodiments. The modules, units, or means may be hardware circuits, software, or a combination of hardware circuits and software.

[0364] The communication device 1600 includes at least one processor 1601. Optionally, it also includes a communication interface 1603 and a memory 1602. The processor 1601, memory 1602, and communication interface 1603 are interconnected via a bus 1604. Optionally, the processor 1601 and memory 1602 can be integrated together.

[0365] The memory 1602 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or compact disc read-only memory (CD-ROM), and is used for related computer programs and data. The communication interface 1603 is used for receiving and sending data.

[0366] Processor 1601 can be one or more central processing units (CPUs). When processor 1601 is a CPU, the CPU can be a single-core CPU or a multi-core CPU.

[0367] The processor 1601 in the communication device 1600 is used to read computer programs or instructions stored in the memory 1602 to implement the functions of the aforementioned processing unit, and the communication interface 1603 in the communication device 1600 is used to implement the functions of the aforementioned transceiver unit.

[0368] This application also provides a chip device including at least one processor, which is used to call a computer program or instructions stored in a memory to cause the processor to execute the method provided in the above embodiments.

[0369] In one possible implementation, the input of the chip device corresponds to the receiving operation in any of the above embodiments, and the output of the chip device corresponds to the sending operation in any of the above embodiments.

[0370] Optionally, the processor is coupled to the memory via an interface.

[0371] Optionally, the chip device may also include a memory storing computer program instructions.

[0372] This application also provides a computer-readable storage medium storing a computer program or instructions that, when executed on a processor, implement the method described in the above method embodiments, which is executed by a first node, a second node, a first network element, or a third node.

[0373] This application also provides a computer program product, which includes a computer program or instructions. When the computer program or instructions are run on a processor, they implement the method executed by the first node, the second node, the first network element, or the third node in the above method embodiments.

[0374] This application also provides a communication system, which includes a first node, a second node, a first network element, and a third node as described in the above embodiments. The first node is used to perform some or all of the operations performed by the first node in the above method embodiments; the second node is used to perform some or all of the operations performed by the second node in the above method embodiments; the first network element is used to perform some or all of the operations performed by the first network element in the above method embodiments; and the third node is used to perform some or all of the operations performed by the third node in the above method embodiments.

[0375] It is understood that the processor in the embodiments of this application may be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. A general-purpose processor may be a microprocessor or any conventional processor.

[0376] The method steps in the embodiments of this application can be implemented in hardware or by a processor executing software instructions. The software instructions can consist of corresponding software modules, which can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disks, portable hard disks, CD-ROMs, or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and storage medium can reside in an ASIC. Alternatively, the ASIC can reside in a base station or terminal. Of course, the processor and storage medium can also exist as discrete components in the base station or terminal.

[0377] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of this application are performed entirely or partially. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user equipment, or other programmable device. The computer program or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; it can also be an optical medium, such as a digital video optical disc; or it can be a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or non-volatile storage medium, or may include both types of storage media.

[0378] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0379] In the description of this application, terms such as "first", "second", "S601" or "S602" are used only for the purpose of distinguishing descriptions and for the convenience of context. Different sequence numbers do not have specific technical meanings themselves and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying the order of execution of operations. The order of execution of each process should be determined by its function and internal logic.

Claims

1. A communication method, characterized in that, include: Receive first indication information, the first indication information including access backhaul integrated IAB sensing mode information, the IAB sensing mode information being used to indicate the IAB sensing mode; Send first information, which includes the IAB sensing mode information.

2. The method according to claim 1, characterized in that, The method further includes: Receive first sensing mode type information, which is used to indicate bi-base sensing from network device to network device; The availability of the IAB sensing mode information is determined based on the first sensing mode type information.

3. The method according to claim 2, characterized in that, The first information also includes the first perception mode type information.

4. The method according to claim 2 or 3, characterized in that, When the IAB sensing mode information is in the first state, the IAB sensing mode information indicates that the IAB sensing mode is IAB downlink bibase sensing.

5. The method according to claim 4, characterized in that, The first information also includes resource configuration information for sensing and measuring signals, and the method further includes: Based on the resource configuration information of the sensing and measurement signals, IAB sensing and measurement signals are sent.

6. The method according to claim 2 or 3, characterized in that, When the IAB sensing mode information is in the second state, the IAB sensing mode information indicates that the IAB sensing mode is IAB uplink bibase sensing.

7. The method according to claim 6, characterized in that, The first information also includes resource configuration information for sensing and measuring signals, and the method further includes: The resource configuration information based on the sensing and measurement signals is received from the IAB sensing and measurement signals; The IAB sensing result is determined by performing sensing measurements based on the IAB sensing measurement signals.

8. The method according to claim 2 or 3, characterized in that, When the IAB sensing mode information is in the third state, the IAB sensing mode information indicates that the IAB sensing mode is IAB side-mounted bipolar sensing.

9. A communication method, characterized in that, include: Receive first information, the first information including access backhaul integrated IAB sensing mode information, the IAB sensing mode information being used to indicate the IAB sensing mode.

10. The method according to claim 9, characterized in that, The first information also includes first sensing mode type information, which is used to indicate bi-base sensing from network device to network device.

11. The method according to claim 9 or 10, characterized in that, When the IAB sensing mode information is in the first state, the IAB sensing mode information indicates that the IAB sensing mode is IAB downlink bibase sensing.

12. The method according to claim 11, characterized in that, The first information also includes resource configuration information for sensing and measuring signals, and the method further includes: The resource configuration information based on the sensing and measurement signals is received from the IAB sensing and measurement signals; The IAB sensing result is determined by performing sensing measurements based on the IAB sensing measurement signals.

13. The method according to claim 9 or 10, characterized in that, When the IAB sensing mode information is in the second state, the IAB sensing mode information indicates that the IAB sensing mode is IAB uplink bibase sensing.

14. The method according to claim 13, characterized in that, The first information also includes resource configuration information for sensing and measuring signals, and the method further includes: Based on the resource configuration information of the sensing and measurement signals, IAB sensing and measurement signals are sent.

15. The method according to claim 9 or 10, characterized in that, When the IAB sensing mode information is in the third state, the IAB sensing mode information indicates that the IAB sensing mode is IAB side-mounted bipolar sensing.

16. The method according to claim 15, characterized in that, The method further includes: Send a second message, which includes at least one of the following: the IAB sensing mode information, the first sensing mode type information, or the resource configuration information of the sensing measurement signal.

17. The method according to claim 16, characterized in that, The method further includes: Based on the resource configuration information of the sensing and measurement signals, IAB sensing and measurement signals are sent.

18. The method according to claim 16, characterized in that, The method further includes: The resource configuration information based on the sensing and measurement signals is received from the IAB sensing and measurement signals; The IAB sensing result is determined by performing sensing measurements based on the IAB sensing measurement signals.

19. A communication method, characterized in that, include: Determine the access backhaul integrated IAB sensing mode information, the IAB sensing mode information being used to indicate the IAB sensing mode; Send a first instruction message, which includes the IAB sensing mode information.

20. A communication device, characterized in that, The apparatus includes a transceiver unit and a processing unit, wherein the processing unit is configured to perform the processing operation in the method as described in any one of claims 1-19, and the transceiver unit is configured to perform the transceiver operation in the method as described in any one of claims 1-19.

21. A communication device, characterized in that, The apparatus includes at least one processor that invokes a computer program or instructions stored in a memory to perform the method as described in any one of claims 1-19.

22. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program or instructions that, when executed on a processor, implement the method as described in any one of claims 1-19.

23. A computer program product, characterized in that, The computer program product includes a computer program or instructions that, when run on a computer, implement the method as described in any one of claims 1-19.

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