Communication method and communication apparatus

Abstract

This application provides a communication method and a communication apparatus. The method includes: a first apparatus sending sensing information to a second apparatus, the sensing information being based on the first apparatus's sensing acquisition of a sensing target, and the sensing information being used for sensing services of the sensing target after cell handover. In this method, the sensing information sent by the first apparatus to the second apparatus can be used in the sensing services of the sensing target after cell handover, correspondingly assisting in the sensing of the sensing target in the new cell and helping to improve the sensing accuracy of the sensing target after cell handover.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically to communication methods and communication apparatus in the field of communications. Background Technology

[0002] With the development of communication technology, integrating sensing services into communication systems has become a new development direction. For example, in early communication systems, positioning was the only sensing service that mobile communication systems could provide. If general sensing services other than positioning are integrated into the communication system, it can become a completely new function and open up new services, such as high-precision positioning, environment reconstruction, gesture and action recognition, etc. However, how the sensing target will be affected by cell handover is still unclear. Summary of the Invention

[0003] This application provides a communication method and a communication device that can exchange sensing information obtained based on the sensing of the sensing target when the sensing target is undergoing cell handover, which helps to improve the sensing accuracy of the sensing target after cell handover.

[0004] Firstly, a communication method is provided, which can be applied to a first device.

[0005] The first device can be an access network device, a component or device applied to the access network device (such as a processor, chip, or chip system), or a logic module or software that can realize all or part of the functions of the access network device.

[0006] The method may include: a first device sending sensing information to a second device, the sensing information being acquired by the first device based on the sensing of the sensing target, and the sensing information being used for the sensing services of the sensing target after the sensing target undergoes cell handover.

[0007] In the above scheme, the sensing information sent by the first device to the second device can be used in the sensing service of the sensing target after the sensing target undergoes cell handover. Correspondingly, it can assist in the sensing of the sensing target in the new cell and help improve the sensing accuracy of the sensing target after cell handover.

[0008] In some possible implementations, the sensing information may include the size information of the sensing target.

[0009] Size information helps to accurately determine the size of the sensed target after cell handover.

[0010] In some possible implementations, the sensing information may include the type of sensing of the target by the first device.

[0011] Based on the perception type, it is beneficial for the second device to make a response that conforms to the perception type when perceiving the target.

[0012] In some possible implementations, the sensing information may include sensing aid information, which can be used to image the sensing target.

[0013] Based on the sensing assistance information, it is helpful to assist in imaging the sensing target after the sensing target undergoes cell handover.

[0014] In some possible implementations, the sensing auxiliary information may include at least one of the following: the direction of motion of the sensing target; the speed of motion of the sensing target; the observation time of the sensing target; and the imaging perspective of the sensing target.

[0015] Based on the content of the sensing auxiliary information, it helps to improve the efficiency of sensing the sensing target after the sensing target undergoes cell handover.

[0016] In some possible implementations, the perceived information can correspond to the ID of the perceived target.

[0017] Based on the ID of the perceived target, the second device can clarify the correspondence between the perceived information and the perceived target.

[0018] In some possible implementations, before the first device sends sensing information to the second device, the method may further include: the first device receiving a first request from the second device, the first request being used to request sensing information.

[0019] Based on the first request, the first device can determine the timing for sending sensing information.

[0020] In some possible implementations, the first request can carry the cell handover request corresponding to the sensing target.

[0021] By carrying the first request in the cell handover request corresponding to the sensing target, the first device can receive the first request in a timely manner.

[0022] In some possible implementations, before the first device sends sensing information to the second device, the method may further include: the first device receiving a second request from the sensing target, the second request being used to request the first device to send sensing information to the second device.

[0023] The second request helps the first device determine the timing for sending sensing information.

[0024] In some possible implementations, the perceived information can be used by a second device to perform perception fusion of the perceived target.

[0025] Perceptual fusion based on perceived information helps improve the accuracy of perception results.

[0026] Secondly, a communication method is provided, which should be usable in a second device.

[0027] The second device can be an access network device, a component or device applied to the access network device (such as a processor, chip, or chip system), or a logic module or software that can realize all or part of the functions of the access network device.

[0028] Alternatively, the second device can be an SF network element of the core network, a component or device applied to the SF network element (such as a processor, chip, or chip system), or a logic module or software that can realize all or part of the functions of the SF network element.

[0029] The method may include: a second device receiving sensing information sent by a first device, the sensing information being acquired based on the first device's sensing of a sensing target, and the sensing information being used for sensing services of the sensing target after cell handover.

[0030] In the above scheme, the sensing information sent by the first device to the second device can be used in the sensing service of the sensing target after the sensing target undergoes cell handover. Correspondingly, it can assist in the sensing of the sensing target in the new cell and help improve the sensing accuracy of the sensing target after cell handover.

[0031] In some possible implementations, the sensing information may include the size information of the sensing target.

[0032] Size information helps to accurately determine the size of the sensed target after cell handover.

[0033] In some possible implementations, the sensing information may include the type of sensing of the target by the first device.

[0034] Based on the perception type, it is beneficial for the second device to make a response that conforms to the perception type when perceiving the target.

[0035] In some possible implementations, if the sensing type is low-latency sensing, the method may further include: the second device sending the coordinates and orientation of the second device to the sensing target.

[0036] Based on this, the latency of sensing the target after cell handover can be reduced.

[0037] In some possible implementations, the sensing information may include sensing aid information, which can be used to image the sensing target.

[0038] Based on the sensing assistance information, it is helpful to assist in imaging the sensing target after the sensing target undergoes cell handover.

[0039] In some possible implementations, the sensing auxiliary information may include at least one of the following: the direction of motion of the sensing target; the speed of motion of the sensing target; the observation time of the sensing target; and the imaging perspective of the sensing target.

[0040] Based on the content of the sensing auxiliary information, it helps to improve the efficiency of sensing the sensing target after the sensing target undergoes cell handover.

[0041] In some possible implementations, the perceived information can correspond to the ID of the perceived target.

[0042] Based on the ID of the perceived target, the second device can clarify the correspondence between the perceived information and the perceived target.

[0043] In some possible implementations, before the second device receives the sensing information sent by the first device, the method may further include: the second device sending a first request to the first device, the first request being used to request the first device to send sensing information.

[0044] Based on the first request, the first device can determine the timing for sending sensing information.

[0045] In some possible implementations, the first request can carry the cell handover request corresponding to the sensing target.

[0046] By carrying the first request in the cell handover request corresponding to the sensing target, the first device can receive the first request in a timely manner.

[0047] In some possible implementations, the perceived information can be used by a second device to perform perception fusion of the perceived target.

[0048] The second request helps the first device determine the timing for sending sensing information.

[0049] In some possible implementations, the method may further include: the second device sending the perception fusion result of the perceived target to the SF network element, wherein the perception fusion result can be obtained by the second device based on the perception information and the perception measurement result of the second device on the perceived target.

[0050] Based on this, it helps SF network elements obtain the fusion sensing information and the sensing fusion results after the second device obtains the sensing measurement results of the sensing target.

[0051] Thirdly, a communication device is provided, which is a first device. The communication device includes modules, units, or means corresponding to the implementation method. These modules, units, or means can be implemented in hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the functions.

[0052] In some possible implementations, the communication device may include a processing module and a transceiver module. The processing module can be used to implement the processing functions in any of the above aspects and their possible implementations. The transceiver module, also referred to as a transceiver unit, is used to implement the sending and / or receiving functions in any of the above aspects and their possible implementations. The transceiver module may consist of transceiver circuitry, a transceiver, a transceiver unit, or a communication interface.

[0053] In some possible implementations, the communication device may include a transceiver module. The transceiver module can be used to send sensing information to a second device. This sensing information can be based on the sensing information acquired by the first device regarding the sensing target, and can be used for sensing services of the sensing target after cell handover.

[0054] In some possible implementations, the sensing information may include the size information of the sensing target.

[0055] In some possible implementations, the sensing information may include the type of sensing of the target by the first device.

[0056] In some possible implementations, the sensing information may include sensing aid information, which can be used to image the sensing target.

[0057] In some possible implementations, the sensing auxiliary information may include at least one of the following: the direction of motion of the sensing target; the speed of motion of the sensing target; the observation time of the sensing target; and the imaging perspective of the sensing target.

[0058] In some possible implementations, the perceived information can correspond to the ID of the perceived target.

[0059] In some possible implementations, before sending the sensing information to the second device, the transceiver module may also be used to receive a first request from the second device, which may be used to request the sensing information.

[0060] In some possible implementations, the first request can carry the cell handover request corresponding to the sensing target.

[0061] In some possible implementations, before sending the sensing information to the second device, the transceiver module may also be used to receive a second request from the sensing target, which may be used to request the first device to send the sensing information to the second device.

[0062] In some possible implementations, the perceived information can be used by a second device to perform perception fusion of the perceived target.

[0063] Fourthly, a communication device is provided, which is a second device. This communication device includes modules, units, or means corresponding to the implementation method. These modules, units, or means can be implemented in hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the functions.

[0064] In some possible implementations, the communication device may include a processing module and a transceiver module. The processing module can be used to implement the processing functions in any of the above aspects and their possible implementations. The transceiver module, also referred to as a transceiver unit, is used to implement the sending and / or receiving functions in any of the above aspects and their possible implementations. The transceiver module may consist of transceiver circuitry, a transceiver, a transceiver unit, or a communication interface.

[0065] In some possible implementations, the communication device may include a transceiver module. The transceiver module can be used to receive sensing information sent by the first device. The sensing information can be based on the first device's sensing acquisition of the sensing target, and the sensing information can be used for sensing services of the sensing target after cell handover.

[0066] In some possible implementations, the sensing information may include the size information of the sensing target.

[0067] In some possible implementations, the sensing information may include the type of sensing of the target by the first device.

[0068] In some possible implementations, if the sensing type is low-latency sensing, the transceiver module can also be used to send the coordinates and orientation of the second device to the sensing target.

[0069] In some possible implementations, the sensing information may include sensing aid information, which can be used to image the sensing target.

[0070] In some possible implementations, the sensing auxiliary information may include at least one of the following: the direction of motion of the sensing target; the speed of motion of the sensing target; the observation time of the sensing target; and the imaging perspective of the sensing target.

[0071] In some possible implementations, the perceived information can correspond to the ID of the perceived target.

[0072] In some possible implementations, before receiving the sensing information sent by the first device, the transceiver module may also be used to send a first request to the first device, which may be used to request the first device to send sensing information.

[0073] In some possible implementations, the first request can carry the cell handover request corresponding to the sensing target.

[0074] In some possible implementations, the perceived information can be used by a second device to perform perception fusion of the perceived target.

[0075] In some possible implementations, the transceiver module can also be used to send the perception fusion result of the perceived target to the SF network element. The perception fusion result can be obtained by the second device based on the perception information and the perception measurement result of the second device on the perceived target.

[0076] Fifthly, a communication device is provided, which may include at least one unit or module that can be used to perform the methods described in any of the foregoing aspects.

[0077] In a sixth aspect, a communication device is provided, which may include at least one processor coupled to at least one memory, the at least one memory being used to store computer programs or instructions, which, when executed by the at least one processor, cause the communication device to implement the methods of any of the above aspects.

[0078] In some possible implementations, the communication device also includes the at least one memory. Optionally, the memory and processor are integrated together.

[0079] In some possible implementations, the communication device is a chip or chip system.

[0080] In a seventh aspect, a computer-readable storage medium is provided that stores a computer program or instructions that, when executed on a computer, cause the methods described in any of the preceding aspects to be performed.

[0081] Eighthly, a computer program product is provided, comprising a computer program or instructions that, when executed on a computer, cause the methods described in any of the preceding aspects to be performed.

[0082] In a ninth aspect, a communication system is provided, comprising a first means (such as an access network device) for performing the method of the first aspect and / or a second means (such as an access network device or an SF network element of a core network) for performing the method of the second aspect.

[0083] It is understood that the beneficial effects of the third to ninth aspects mentioned above can be found in the relevant descriptions of the first or second aspects mentioned above, and will not be repeated here. Attached Figure Description

[0084] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0085] Figure 1 This is a schematic diagram of the structure of a communication system provided in an embodiment of this application.

[0086] Figure 2 This is a schematic diagram of another communication system provided in an embodiment of this application.

[0087] Figure 3 This is an example diagram of the RAN chip architecture provided in the embodiments of this application.

[0088] Figure 4 This is an example diagram of the access network device architecture provided in the embodiments of this application.

[0089] Figure 5 This is an example diagram of a perception network architecture provided in an embodiment of this application.

[0090] Figure 6 This is an example diagram of another perceptual network architecture provided in the embodiments of this application.

[0091] Figure 7 This is an example diagram of a sensing process provided in an embodiment of this application.

[0092] Figure 8 This is an example diagram of another sensing process provided in an embodiment of this application.

[0093] Figure 9 This is an example diagram of another sensing process provided in the embodiments of this application.

[0094] Figure 10 This is an example diagram of ISAR imaging provided in the embodiments of this application.

[0095] Figure 11 This is a flowchart illustrating a communication method provided in an embodiment of this application.

[0096] Figure 12 This is a flowchart illustrating another communication method provided in an embodiment of this application.

[0097] Figure 13 This is a flowchart illustrating another communication method provided in an embodiment of this application.

[0098] Figure 14 This is a flowchart illustrating another communication method provided in an embodiment of this application.

[0099] Figure 15 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application.

[0100] Figure 16 This is a schematic diagram of another communication device provided in an embodiment of this application.

[0101] Figure 17 This is a schematic diagram of the structure of another communication device provided in the embodiments of this application. Detailed Implementation

[0102] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings.

[0103] It should be understood that the methods, situations, categories, and classifications of embodiments in this application are merely for descriptive convenience and should not constitute any particular limitation. Various methods, categories, situations, and features in embodiments can be combined without contradiction. It should also be understood that the terms "first," "second," "third," and "fourth" in the embodiments of this application are merely for distinction and should not constitute any limitation on this application. Furthermore, it should be understood that in the various embodiments of this application, the sequence number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0104] In this application embodiment, the number of nouns, unless otherwise specified, refers to "singular nouns or plural nouns," that is, "one or more." "At least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. For example, A / B means: A or B. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c means: a, or b, or c, or a and b, or a and c, or b and c, or a and b and c, where a, b, or c can be single or multiple.

[0105] Furthermore, the terms "comprising" and "having," and any variations thereof, used in the description of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include other steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0106] It should be noted that in the embodiments of this application, the words "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design scheme described as "exemplarily" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of the words "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0107] The methods and apparatus provided in this application are based on the same or similar technical concepts. Since the methods and apparatus solve problems in similar ways, the implementation of the apparatus and methods can refer to each other, and repeated parts will not be described again.

[0108] The technical solutions of this application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Universal Mobile Telecommunication System (UMTS), 5th Generation (5G) system, or New Radio (NR) system, or future communication systems, etc.

[0109] To facilitate understanding of the embodiments of this application, firstly, in conjunction with Figure 1 This describes a communication system applicable to embodiments of this application. For example... Figure 1 As shown, the communication system 1000 includes a radio access network (RAN) 100 and a core network (CN) 200. The radio access network 100 may include at least one RAN node (e.g., Figure 1 110a and 110b, collectively referred to as 110, may also include at least one terminal (such as...). Figure 1 120a to 120j, collectively referred to as 120, are included in the radio access network 100. Other RAN nodes may also be included in the radio access network 100, such as radio relay equipment and / or radio backhaul equipment. Figure 1(Not shown in the image). Terminal 120 can connect to RAN node 110 wirelessly, and RAN node 110 can connect to core network 200 wirelessly or via wired connection. The core network equipment in core network 200 and RAN node 110 in radio access network 100 can be different physical devices, or they can be the same physical device integrating core network logical functions and radio access network logical functions.

[0110] The radio access network 100 can be a cellular system related to the 3rd generation partnership project (3GPP), such as 4G, 5G mobile communication systems, non-terrestrial networks (NTN) systems, or future-oriented evolution systems. For example, if the radio access network 100 is an NTN system, then the radio access network 100 can be in transparent mode or regenerative mode, and the radio access network 100 can be an earth fixed cell scheme or an earth moving cell scheme.

[0111] The wireless access network 100 can also be an open access network (open RAN, O-RAN or ORAN), a cloud radio access network (CRAN), or a wireless fidelity (WiFi) system, or a communication system that integrates two or more of the above systems.

[0112] Terminal 120 can also be referred to as terminal equipment, user equipment (UE), station, access terminal, user unit, user station, mobile station (MS), mobile station (MS), remote station, remote terminal, mobile terminal (MT), user terminal, terminal (or terminal device), wireless communication equipment, user agent, or user device, etc., or a device used to provide voice or data connectivity to users. It can also be an Internet of Things (IoT) device. For example, terminal equipment includes handheld devices with wireless connectivity, vehicle-mounted devices, etc., which are not limited in this application embodiment. This application embodiment does not limit the device form of the terminal.

[0113] In some implementations, the terminal may be a mobile phone, cellular phone, smartphone, wireless data card, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA) computer, tablet computer, wireless modem, handset with wireless communication capabilities, laptop computer, computing device or other processing device connected to a wireless modem, large screen, in-vehicle device (e.g., car, bicycle, electric vehicle, airplane, ship, train, high-speed rail, etc.), wearable device (e.g., smartwatch, smart bracelet, pedometer, smart glasses, etc.), machine type communication (MTC) terminal device, Internet of Things (IoT) terminal device, tag, terminal device in a 5G network, or terminal device in a future evolved public land mobile network (PLMN), etc., and this application does not limit the scope of the terminal.

[0114] In some implementations, the terminal can also be a tablet computer, laptop computer, computer with wireless transceiver capabilities, handheld computer, mobile internet device (MID), virtual reality (VR) device, augmented reality (AR) device, point of sale (POS) machine, customer-premises equipment (CPE), light UE, reduced capability UE (REDCAP UE), industrial control, wireless terminal in telemedicine, smart home device (e.g., refrigerator, television, air conditioner, electricity meter, etc.), smart robot, robotic arm, ship, workshop equipment, self-driving, wireless terminal in autonomous driving, wireless terminal in remote medical surgery, smart grid, smart furniture, smart office, smart wearable, wireless terminal in smart transportation, wireless terminal in transportation safety, wireless terminal in smart city, smart home. Wireless terminals in the home, flying equipment (e.g., intelligent robots, hot air balloons, drones, helicopters, airplanes), etc. Terminals can also be vehicle devices, such as complete vehicle units, vehicle modules, vehicle chips, on-board units (OBUs), or telematics boxes (T-BOXs). Terminals can also be other devices with terminal functions; for example, a terminal can act as a terminal in device-to-device (D2D) communication.

[0115] In some implementations, the terminal can be used to act as a base station. Alternatively, the terminal can act as a scheduling entity to provide sidelink signals between terminal devices in vehicle-to-everything (V2X) or D2D systems, for example, cellular phones and cars can communicate using sidelink signals, or cellular phones and smart home devices can communicate using sidelink signals without relaying communication signals through a base station.

[0116] RAN node 110, sometimes also referred to as access network equipment, RAN entity, or access node, constitutes part of the communication system and assists terminals in achieving wireless access. Multiple RAN nodes 110 in the communication system 1000 can be of the same type or different types. In some scenarios, the roles of RAN node 110 and terminal 120 are relative, for example... Figure 1 Network element 120i can be a helicopter or a drone, and it can be configured as a mobile base station. For terminals 120j that access the radio access network 100 through network element 120i, network element 120i is a base station; however, for base station 110a, network element 120i is a terminal. RAN node 110 and terminal 120 are sometimes referred to as communication devices, for example... Figure 1 Network elements 110a and 110b can be understood as communication devices with base station functions, while network elements 120a-120j can be understood as communication devices with terminal functions.

[0117] Communication between access network devices and terminal devices follows a specific protocol layer structure. This protocol layer may include a control plane protocol layer and a user plane protocol layer. The control plane protocol layer may include at least one of the following: radio resource control (RRC) layer, packet data convergence protocol (PDCP) layer, radio link control (RLC) layer, media access control (MAC) layer, or physical (PHY) layer, etc. The user plane protocol layer may include at least one of the following: service data adaptation protocol (SDAP) layer, PDCP layer, RLC layer, MAC layer, or physical layer, etc.

[0118] In some implementations, the RAN node 110 in this application embodiment can be a base station (BS), a Node B, an evolved Node B (eNodeB), a next-generation Node B (gNB) in a 5G mobile communication system, a transmission reception point (TRP), a transmission measurement function (TMF), an access point (AP), network equipment (such as a satellite) in an NTN system, one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G mobile communication system, a base station in a future mobile communication system or an access point (AP) in a WiFi system, a radio controller, relay station, access point, vehicle-mounted equipment, wearable device, network equipment in other future evolved communication systems, etc. The RAN node can be a macro base station (such as... Figure 1 110a), micro base stations or indoor stations (such as Figure 1 In CRAN scenarios, RAN nodes can be 110b), relay nodes or master nodes, or wireless controllers. Optionally, RAN nodes can also be servers, wearable devices, vehicles, or in-vehicle equipment. For example, in vehicle-to-everything (V2X) technology, the access network equipment can be a roadside unit (RSU).

[0119] In some implementations, multiple RAN nodes can collaborate to assist terminal devices in achieving wireless access, with different RAN nodes each implementing some of the base station's functions. For example, a RAN node can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. CUs and DUs can be set up separately or included in the same network element, such as a baseband unit (BBU). RUs can be included in radio frequency equipment or radio frequency units, such as remote radio units (RRUs), active antenna units (AAUs), or remote radio heads (RRHs).

[0120] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meanings. For example, in an O-RAN system, CU can also be called an open CU (O-CU), DU can also be called an open DU (O-DU), CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software modules and hardware modules. It should be understood that this application does not limit the specific technology or specific device form used in the network equipment.

[0121] As an example, taking O-RAN as an example, the architecture of CU, DU, and RU can be as follows: Figure 2 As shown. Figure 2 An example diagram of an O-RAN system is shown. An O-RAN system may also include... Figure 2 Other components besides those shown.

[0122] like Figure 2 As shown, the access network equipment (RAN, such as an eNB, gNB, or next-generation access network equipment) communicates with the core network (CN) via a backhaul link, and communicates with the user equipment (UE) via an air interface. This is equivalent to the BBU in the access network equipment communicating with the core network via a backhaul link, and the RU in the access network equipment communicating with at least one UE via an air interface. The BBU communicates with at least one RU via a fronthaul link; the BBU and RU may or may not be co-located. Optionally, the BBU may include at least one core network unit (CU) and at least one user unit (DU), which can communicate via at least one midhaul link.

[0123] There is an interface between the DU and RU. Depending on the functions and / or the splitting method of the DU and RU, the interface between the DU and RU can be a common public radio interface (CPRI) or an enhanced common public radio interface (eCPRI).

[0124] In some implementations, the CU of an O-RAN system can be split into CU-CP (i.e., O-CU-CP) and CU-UP (i.e., O-CU-UP). CU-CP is a logical node carrying the RRC layer and the PDCP control plane (PDCP-C) layer, and can be used to implement the CU's control plane functions. CU-CP can interact with network elements in the core network used to implement control plane functions. These network elements in the core network can be access and mobility function (AMF) network elements, such as the AMF network elements in a 5G system. AMF network elements can be used to manage mobility in the mobile network, such as terminal device location updates, terminal device registration, terminal device handover, access stratum (AS) security control, access authentication, access authorization, and non-access stratum (NAS) signaling security. CU-UP is a logical node carrying the SDAP layer and the PDCP user plane (PDCP-U) layer, and is used to implement the CU's user plane functions. CU-UP can interact with network elements in the core network used to implement user plane functions. These network elements, such as the user plane function (UPF) network elements in a 5G system, are responsible for forwarding and receiving data in terminal devices.

[0125] The above CU and DU configurations are merely examples; the functions of the CU and DU can be configured as needed. For instance, the CU or DU can be configured to have more protocol layer functions, or only some protocol layer processing functions. For example, some RLC layer functions and protocol layer functions above the RLC layer can be placed in the CU, while the remaining RLC layer functions and protocol layer functions below the RLC layer can be placed in the DU. Furthermore, the functions of the CU or DU can be divided according to service type or other system requirements, such as by latency. Functions that require low latency can be placed in the DU, while functions that do not require low latency can be placed in the CU.

[0126] As another example, Figure 3This diagram illustrates a common RAN chip architecture, divided into CU, DU, and RU. The CU can perform upper-layer (Layer 2, L2) and Layer 3 (Layer 3, L3) functions. The midhaul and backhaul interfaces carry traffic between the CU and DU, and between the CU and the core network. The DU performs Layer 1 (L1) and some Layer 2 functions, while the RU performs L1 computation and radio frequency (RF) digital functions. The fronthaul and backhaul interfaces carry traffic between the RU and DU, and between the CU and DU. An integrated DU can include the functions of both the DU and RU.

[0127] CU / DU hardware may include a chassis platform, motherboard, peripherals, and cooling system. The motherboard may contain processing units, memory, internal input / output (I / O) interfaces, and external connection ports. Its hardware accelerator is designed with interfaces, and hardware functional components include: storage for software, hardware, and system debugging interfaces, and a single-board management controller.

[0128] DU systems are typically implemented using multi-core processors and one or more hardware accelerators. Parts of the DU protocol stack can be implemented in software running on the multi-core processor, while computationally intensive L1 and L2 functions can be offloaded to a field-programmable gate array (FPGA) / graphics processing unit (GPU)-based hardware accelerator; or all L1 functions can be offloaded to an FPGA / GPU-based hardware accelerator, while other protocol stack components are implemented in software running on the processor; or the entire protocol stack can be implemented in software running on the processor. The hardware accelerator supports interconnection with x86 or non-x86 processors. Similarly, the accelerator has a multi-channel peripheral component interconnect express (PCIe) interface pointing to the central processing unit (CPU) and external connections via gigabit Ethernet (GbE) connectivity.

[0129] The RU comprises three parts: the O-RAN processing unit (OPU), which receives Common Public Radio Interface (eCPRI) frames from the O-RAN fronthaul and performs fronthaul interface operations, the lowest level L1 (coding, scrambling, modulation, layer mapping, precoding), synchronization, beamforming, and resource unit mapping. The OPU can be implemented as a CPU, FPGA, or application-specific integrated circuit (ASIC). The O-RU's digital processing unit (DPU) performs synchronization, digital downconversion (DDC) in the uplink (UL), digital upconversion (DUC) in the downlink (DL), peak-to-average power ratio (CFR) reduction, and digital pre-distortion (DPD). It improves power amplifier efficiency by reducing the peak-to-average power ratio (PAPR) / adjacent channel leakage ratio (ACLR) of the RF front-end; the DPU can be implemented as an FPGA or ASIC. The O-RU's RF processing unit includes a transceiver module, up / down converters, power amplifiers (PA), low-noise amplifiers (LNA), and transmission (Tx) / reception (Rx) filters. All conversions between the analog and digital domains (digital-to-analog converters (DACs) and analog-to-digital converters (ADCs)) (e.g., RF sampling, frequency conversion using RF in up-conversion and down-conversion, and mixing of intermediate frequency (IF) and local oscillator (LO)) are performed within the transceiver module. Note that physical and logical partitions within the RF processing unit do not require specific boundaries.

[0130] For example, Figure 4 A schematic diagram of the architecture of an access network device is shown. The access network device includes one or more functional modules for signal processing. For example... Figure 4As shown, taking physical layer functions as an example, access network equipment includes one or more of the following functions: coding, rate matching, scrambling, modulation, layer mapping, precoding, resource element (RE) mapping, digital beamforming (BF), inverse fast Fourier transform (IFFT) / adding cyclic prefix (CP), decoding, rate matching de-matching, descrambling, demodulation, inverse discrete Fourier transformation (IDFT), channel equalization (or channel estimation), RE de-mapping, digital BF, fast Fourier transform (FFT) / CP removal, digital to analog (DA) conversion, analog BF, analog to digital (AD) conversion, or analog BF.

[0131] In some implementations, the access network device can be fixed or mobile, and this application does not limit this. For example, a helicopter or drone can be configured as a mobile network device, and one or more cells can move according to the location of the mobile network device. In other examples, a helicopter or drone can be configured as a device to communicate with another network device.

[0132] In some implementations, the access network device can be deployed on land or in the air, and this application does not limit this. For example, the access network device can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on water; and it can also be deployed in the air on airplanes, balloons, and satellites.

[0133] Core network equipment can refer to devices within the Network Component (CN) that provide service support to terminals. For example, core network equipment can be an AMF entity, a Session Management Function (SMF) entity, a UPF entity, an Application Function (AF) entity, a Network Exposure Function (NEF) entity, a Policy Control Function (PCF) entity, a Unified Data Management (UDM) entity, a Unified Data Repository (UDR) entity, and so on.

[0134] The AMF (Access Management Function) entity is responsible for terminal access management and mobility management, such as user location updates, user network registration, and user handover. The SMF (Service Management Function) entity is responsible for session management, including session establishment, modification, and release. Specific functions include assigning Internet Protocol (IP) addresses to users and selecting a UPF (User Plane Function) to provide packet forwarding. The UPF entity is a user plane functional entity primarily responsible for connecting to external networks. The PCF (Programmable Component Function) entity provides policies to the AMF and SMF, such as Quality of Service (QoS) policies and slice selection policies. The UDM (User Module Function) entity stores user data, such as subscription information and authentication / authorization information. The AF (Action Controller) entity provides services to the 3GPP network, such as influencing service routing and interacting with the PCF for policy control. The NEF (Network Function) entity can expose the capabilities of various network functions (NFs) and is responsible for converting internal and external information. The UPF entity is primarily responsible for processing user packets, such as forwarding and billing.

[0135] It should be noted that in this application, an entity can also be referred to as a network element or a functional entity. For example, an AMF entity can also be referred to as an AMF network element or an AMF functional entity, and an SMF entity can also be referred to as an SMF network element or an SMF functional entity, etc.

[0136] In this embodiment, the terminal device or network device may include a hardware layer, an operating system layer running on top of the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a CPU, a memory management unit (MMU), and memory (also called main memory). The operating system can be any one or more computer operating systems that implement business processing through processes. The application layer includes applications such as browsers, address books, word processing software, and instant messaging software. Furthermore, this embodiment does not specifically limit the specific structure of the execution entity of the method provided in this embodiment, as long as it can communicate according to the method provided in this embodiment by running a program that records the code of the method provided in this embodiment.

[0137] Furthermore, various aspects or features of this application can be implemented as methods, apparatus, or articles of manufacture using standard programming and / or engineering techniques. The term "article of manufacture" as used herein encompasses a computer program accessible from any computer-readable device, carrier, or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), optical discs (e.g., compact discs (CDs), digital versatile discs (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROMs), cards, sticks, or key drives, etc.). Additionally, the various storage media described herein may represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0138] It should be understood that the above communication system is illustrated using a 5G system as an example. Of course, this application can also be applied to other 3rd generation partnership project (3GPP) communication systems, such as future wireless communication systems. The embodiments of this application are not limited in this respect.

[0139] It should be understood that all or part of the functions of the communication device in this application can also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (e.g., a cloud platform).

[0140] It should be understood that the system architecture described in the embodiments of this application is for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and does not constitute a limitation on the technical solutions provided in the embodiments of this application. Those skilled in the art will know that with the evolution of network architecture, the embodiments of this application can also be applied to similar technical problems.

[0141] With the rapid development of wireless communication technology, base stations, as core components of networks, are constantly expanding their functions and application scenarios. In recent years, the technology of using base stations for environmental sensing has gradually attracted attention. This technology is based on the interaction between the base station and its surrounding environment, and can achieve the perception and monitoring of the surrounding environment by collecting and analyzing the signals received by the base station.

[0142] In the field of environmental sensing, traditional methods typically rely on specialized sensors and equipment, such as cameras, radar, and infrared detectors. However, these methods have several drawbacks, including high cost, difficult deployment, and susceptibility to weather conditions. In contrast, utilizing base stations for environmental sensing offers numerous advantages.

[0143] First, base stations have extensive coverage. As the infrastructure of wireless communication networks, base stations typically cover an entire city or a specific area. This means that using base stations for environmental sensing can enable real-time monitoring of large areas, providing valuable data support for urban planning, traffic management, disaster early warning, and other fields.

[0144] Secondly, base stations are characterized by continuous online operation. They need to provide communication services to users 24 hours a day, so they are always operational. This enables real-time, continuous data collection and analysis using base stations for environmental sensing, allowing for the timely detection and handling of environmental problems.

[0145] Furthermore, utilizing base stations for environmental sensing can reduce costs. Since base stations are already widely deployed in cities, there's no need to install a large number of additional sensors and equipment. Simply upgrading and modifying existing base stations is sufficient to achieve environmental sensing and monitoring. This not only saves significant investment costs but also avoids redundant construction and resource waste.

[0146] Research on integrated sensing and communication (ISAC) applications and potential needs based on 5G-enhanced air interfaces has been initiated within 3GPP. Future applications of ISAC in communication systems may include ultra-high precision positioning, simultaneous imaging, map building, and human sensory enhancement. In simultaneous imaging, map building, and positioning applications, these three sensing capabilities can mutually reinforce each other. For example, imaging can capture images of the surrounding environment, positioning can obtain the locations of surrounding objects, and these images and locations can then be used to build a map, which in turn improves location reasoning capabilities.

[0147] ISAC leverages advanced algorithms, edge computing, and artificial intelligence (AI) technologies to generate super-resolution, high-recognition images and maps. Vehicles, base stations, and other elements within these maps form a vast network, effectively utilizing sensors to significantly expand the imaging range. Furthermore, imaging results can be easily fused and shared across the entire network via cloud services, significantly improving imaging performance. This super-resolution, high-precision sensing capability supports 3D indoor imaging and mapping, enabling applications such as indoor scene reconstruction, spatial positioning, and indoor navigation, while providing the latest environmental information to the network and terminals. Object surfaces reflect signals like mirrors; precise map information can be used to determine multipath reflection points and reconstruct images of non-line-of-sight objects using mirroring techniques. Therefore, after environmental reconstruction, the geometric prior information of the scene allows for the localization and imaging of non-line-of-sight targets, enabling more accurate target location detection.

[0148] For a long time, wireless sensing has been an independently developed technology with little overlap with the development of mobile communication systems. Sensing services are provided by various specialized sensing devices, such as ordinary radar, lidar, computed tomography (CT), and magnetic resonance imaging (MRI). In 5G and earlier communication systems, positioning was the only sensing service that mobile communication systems could provide. Integrating general sensing technologies beyond positioning into communication systems can become a completely new function and open up entirely new services, such as high-precision positioning, environmental reconstruction, and gesture and action recognition. This includes reconstructing the target area environment using methods such as lasers, radar, and base stations—that is, reconstructing the real physical environment through sensing. For example, based on measurement information, methods such as scattering polygons can be used to reconstruct the environment between the UE and the base station, characterizing scattering objects such as walls and furniture within that area.

[0149] As an example, a perceptual network architecture can be as follows: Figure 5 As shown in the diagram, this architecture considers adding a sensing function (SF) network element. An SF can be a device or component that provides sensing functionality to the network within the core network. An SF can also be called a sensing management function (SMF), or other names. An SF and a location management function (LMF) can be co-located, meaning sensing and positioning are handled by the same network element. The LMF is a core network element in the 5G core network (5GC) that provides control plane positioning. It is used to calculate and feedback location information in the 5G network, providing functions such as positioning process management, terminal capability acquisition, auxiliary data provision, and terminal location estimation. Specifically, it provides the following functions:

[0150] • Supports UE location calculation.

[0151] • Obtain downlink location measurements or location estimates from the UE.

[0152] • Obtain uplink location measurements from the next-generation (NG) RAN.

[0153] In this architecture, the SF can reuse the interfaces between the LMF and 5GC network elements such as AMF, NEF, UDM, network data analytics function (NWDAF), and policy control function (PCF) for perception interaction. Perception control signaling between the LMF (including the SF) and the RAN or UE can be transmitted through the AMF. Perception measurement data acquired by the RAN / UE can be transmitted to the LMF (including the SF) via the control plane, using the reused LTE positioning protocol (LPP) or NR positioning protocol annex (NRPPa) for transmission, or it can be transmitted via the user plane, using UPF forwarding or direct transmission to the LMF (including the SF).

[0154] The newly added SF network element in this architecture can be deployed independently or co-located with 5GC network elements (such as AMF or LMF) according to sensing requirements. This network element can implement basic sensing functions, such as sensing authorization, sensing control, sensing measurement data processing, and result output. If the sensing function is co-located with the LMF, the LMF and the gateway mobile location center (GMLC) need to be functionally enhanced to support the basic sensing functions. The GMLC is the first network element in the operator's network to process sensing requests, performing privacy checks or authorization functions, routing sensing requests to the AMF, and performing LMF selection, etc.

[0155] The sensing network element sets up interfaces and interacts with 5GC network elements such as AMF, NEF, UDM, NWDAF, PCF, LMF, and UPF. The specific definitions are as follows:

[0156] • NS1: A new NS1 interface has been added between the sensing network element and the AMF (Awareness and Control Frame). This interface can transmit sensing control signaling. For scenarios where sensing measurement data is uploaded from the control plane, this interface can also transmit sensing measurement data.

[0157] • NS2: A new NS2 interface is added between the sensing network element and NEF. This interface can transmit signaling messages between the sensing network element relayed through NEF and the service-side AF, and at the same time open the sensing results to the AF.

[0158] • NS3: A new NS3 interface is added between the sensing network element and the UDM. Through this interface, authentication or authorization can be achieved, and UE sensing subscription information, service AMF information or other information can be obtained.

[0159] •NS4: A new NS4 interface has been added between the sensing network element and the NWDAF. Through this interface, the sensing network element and the NWDAF can jointly complete AI processing related to sensing services.

[0160] • NS5: A new NS5 interface is added between the sensing network element and the PCF. Through this interface, the sensing network element can transmit information such as the sensing requirements, QoS requirements or sensing results of the sensing service to the PCF. The PCF then makes decisions to generate policy control and charging (PCC) policies related to the sensing service.

[0161] • NS6: A new NS6 interface is added between the sensing network element and the LMF. Through this interface, the sensing network element can obtain location-related information, such as the sensing area, the RAN information of the sensing target, and the location information of the sensed UE.

[0162] • NS7: The sensing network element and user plane function have added the NS7 interface. Sensing measurement data can be directly transmitted from (R)AN to the sensing network element via the user plane function, or it can be indirectly forwarded to the sensing network element via UPF. If the sensing is performed by (R)AN and forwarded via UPF, the UPF needs to be modified to support data transmission at the (R)AN granularity.

[0163] In addition to the newly added interfaces mentioned above, existing interfaces (such as N1, N2, N5, N8, N33, etc.) must support the transmission of information related to sensing services, such as authentication information, sensing service type, sensing service quality requirements, sensing measurement data, and sensing results.

[0164] If the sensing function is shared with the LMF, a new interface needs to be added between the LMF and GMLC to transmit sensing service-related information. Interfaces related to the LMF and GMLC (such as the NL1 interface between AMF and LMF, the NL2 interface between AMF and GMLC, the NL5 interface between NEF and GMLC, and the NL6 interface between UDM and GMLC) also need to support the transmission of sensing service-related information. A new NL9 interface needs to be added between the LMF and GMLC. Specific details are as follows:

[0165] • N33: This is the interface between AF and NEF. Through this interface, information such as the type of sensing business, business requirements, and sensing results can be transmitted.

[0166] •NL5: This is the interface between NEF and GMLC. Through this interface, information such as the type of sensing service, service requirements, and sensing results can be transmitted.

[0167] •NL6: This is the interface between GMLC and UDM, through which privacy inspection data can be transmitted;

[0168] •NL2: This is the interface between NEF and AMF, through which information such as the perceived service type, service requirements, and perceived results can be transmitted.

[0169] •NL1: This is the interface between AMF and LMF, through which the sensing service type, service requirements, sensing results, etc. can be transmitted;

[0170] • New interface NL9: This is the interface between GMLC and LMF, through which sensing service types, service requirements, sensing results, etc. can be transmitted.

[0171] As another example, a perceptual network architecture can be like... Figure 6 As shown.

[0172] In this architecture, the sensing function is relatively independent of the existing 5GC, and sensing network elements do not need to interact with the 5GC or only perform minimal interaction. For scenarios where sensing needs exist only in a specific area or where there is only a sensing requirement, this architecture can provide sensing services without requiring 5GC control or only requiring some network elements to participate in control. Furthermore, localized deployment in the SF (Secure, Foundry) system ensures that sensing measurement data or results do not leave the campus, thus meeting enterprises' needs for the security and privacy of sensing measurement data or results, and reducing sensing latency. This architecture is simple, flexible, efficient, has few transmission nodes, is easy to deploy, and can optionally support UE-related sensing requirements, considering implementation schemes for functions such as authorization, mobility management, and billing as needed.

[0173] In this architecture, the SF directly connects to the RAN node, and both sensing control plane signaling messages and sensing measurement data are transmitted via the newly defined interface NS1. When the UE participates in sensing, control plane signaling messages are forwarded to the SF through the AMF, and sensing measurement data is transmitted via NS1. In addition, the SF may also have interfaces with 5GC network elements AMF, NEF, or NWDAF to ensure that the AF must provide sensing service requirements to the SF through core network functions.

[0174] • NS1: An NS1 interface is added between the sensing network element and the (R)AN. This interface can transmit sensing control signaling or sensing measurement data. In one deployment implementation, the sensing function can also be deployed at the base station.

[0175] • NS2: A new NS2 interface may be added between the sensing network element and the AMF. This interface receives sensing service requests from the UE or transmits signaling messages between the sensing network element and other core network elements, such as interaction messages with the UDM.

[0176] • NS3: A new NS3 interface may be added between the sensing network element and the NEF. This interface can transmit signaling messages that the sensing network element interacts with the service-side AF through the NEF, and at the same time open the sensing results to the AF. The interaction between the sensing function and the AF may not go through the NEF. In actual deployment, NS2 and NS3 will be selected. That is, the AF sends sensing service requests to the SF indirectly or directly to the SF (without NEF) through NS2 (NEF); or, the AF sends sensing service requests to the SF through N33 (NEF) and NS2 (AMF).

[0177] •NS4: A new NS4 interface may be added between the sensing network element and the NWDAF. Through this interface, the sensing network element can work with the NWDAF to perform intelligent analysis and prediction and generate sensing results.

[0178] For example, the base station-based sensing process can be as follows: Figure 7 As shown, the sensing area of ​​a base station can be divided into line-of-sight (LOS) and non-line-of-sight (NLOS) areas. Due to obstruction by obstacles, the base station cannot effectively sense targets in the NLOS area. Therefore, using a base station for sensing may result in limited coverage, such as... Figure 8 As shown, the base station can only effectively perceive and detect strongly reflective targets within the visible area.

[0179] like Figure 9 As shown, a terminal can be introduced to assist the base station in sensing. In terminal-assisted base station sensing, the reference signal sent by the terminal is received at the base station after passing through the sensing target. This sensing mode is called bi-static sensing or end-to-end network cooperative sensing.

[0180] In ISAC, a commonly used imaging technique is inverse synthetic aperture radar (ISAR) imaging. The principle of ISAR imaging is based on the relative motion of the target. By transmitting radar signals and receiving reflected echoes, the phase and frequency changes (Doppler effect) of the signals are analyzed to extract the target's motion information. Echo data from multiple time points are synthesized into a large aperture and processed. Finally, the processed information is converted into a high-resolution two-dimensional / three-dimensional image. ISAR imaging can obtain the size information of the target. This technology is widely used in military surveillance, marine exploration, and aerospace. The result of ISAR imaging is a two-dimensional high-resolution image, where the image corresponds to the target's range-Doppler spectrum. This image does not match the actual target size and requires calibration to estimate the equivalent rotational speed and obtain size information. For example, the basic process of ISAR imaging can be described as follows: Figure 10 As shown.

[0181] In communication systems, terminals may typically perform cell handovers, switching from one cell to another. However, in sensing services, how cell handovers by the sensing target affect the sensing service remains unclear.

[0182] To address one or more of the aforementioned technical problems, this application proposes a communication method and a communication apparatus. In this method, sensing information sent from a first apparatus to a second apparatus can be used in sensing services for the sensing target after cell handover, thereby assisting in sensing the target in the new cell and helping to improve the sensing accuracy of the target after cell handover.

[0183] The following describes an embodiment of the communication method of this application with reference to the accompanying drawings.

[0184] Figure 11 A communication method 1100 provided in an embodiment of this application is illustrated. The communication method 1100 can be applied to a first device and a second device.

[0185] The first device can be an access network device, which can be an entity in the network used to transmit or receive signals, such as a gNB. Alternatively, the first device can also be a component or device of the access network device (e.g., a processor, chip, or chip system). Furthermore, the first device can also be a logic module or software capable of implementing all or part of the functions of the access network device, such as an RRC signaling interaction module (for sending and receiving RRC signaling), a MAC signaling interaction module (for sending and receiving MAC-CE signaling), or a PHY signaling and data interaction module (for sending and receiving uplink / downlink control signaling and uplink / downlink data), etc.

[0186] The second device can be an access network device, a component or device applied to the access network device (such as a processor, chip, or chip system), or a logic module or software that can realize all or part of the functions of the access network device.

[0187] Alternatively, the second device can be an SF network element of the core network, a component or device applied to the SF network element (such as a processor, chip, or chip system), or a logic module or software that can realize all or part of the functions of the SF network element.

[0188] It should be noted that the number of the first device and the second device in communication method 1100 is not limited.

[0189] like Figure 11 As shown, the communication method 1100 may include step S1110.

[0190] In step S1110, the first device sends sensing information to the second device. Correspondingly, the second device receives the sensing information sent by the first device (or in other words, the second device receives sensing information from the first device).

[0191] The sensing information can be acquired based on the sensing of the sensing target by the first device, and the sensing information can be used for the sensing services of the sensing target after the sensing target undergoes cell handover.

[0192] For example, the first device may be the source base station in the source cell before the sensing target performs cell handover. Alternatively, the first device may be a base station other than the source base station in the source cell before the sensing target performs cell handover.

[0193] For example, if the second device is an access network device, the second device may be a target base station in the target cell after the sensing target performs cell handover, or a base station other than the target base station in the target cell after the sensing target performs cell handover.

[0194] As an example, the first device can be the source base station in the source cell before the target cell handover, and the second device can be the target base station in the target cell after the target cell handover. Accordingly, the source base station in the source cell can send sensing information to the target base station in the target cell.

[0195] As another example, the first device can be a base station other than the source base station in the source cell before the target cell handover, and the second device can be the target base station in the target cell after the target cell handover. Accordingly, the base station other than the source base station in the source cell can send sensing information to the target base station in the target cell.

[0196] As another example, the first device can be a base station other than the source base station in the source cell before the target cell handover, and the second device can be a base station other than the target base station in the target cell after the target cell handover. The base station other than the source base station in the source cell can send sensing information to the base station other than the target base station in the target cell.

[0197] As another example, the first device can be the source base station in the source cell before the target cell handover, and the second device can be an SF network element in the core network. Accordingly, the source base station in the source cell can send sensing information to the SF network element in the core network.

[0198] As another example, the first device can be a base station other than the source base station in the source cell before the target cell handover, and the second device can be an SF network element in the core network. Accordingly, the base station other than the source base station in the source cell can send sensing information to the SF network element in the core network.

[0199] Optionally, the first device can detect the target before the target undergoes cell handover.

[0200] For example, the source base station in the source cell of the target cell before the target cell handover, or a base station other than the source base station, can detect the target before the target cell handover.

[0201] The first device does not limit the sensing mode of the sensing target. For example, the sensing mode can be one of the following: base station transmits and receives independently; terminal transmits and base station receives; base station A transmits and base station B receives.

[0202] Optionally, the first device's perception of the target can refer to the first device receiving a sensing signal from the target and performing a sensing measurement. It should be noted that the sensing signal in this application refers to the signal involved in sensing services.

[0203] For example, in a base station self-transmitting and self-receiving sensing mode, the base station (equivalent to the first device) can send sensing signals to the sensing target and receive sensing signals from the sensing target to perform sensing measurements.

[0204] For example, in the sensing mode where the terminal transmits and the base station receives, the terminal can send a sensing signal to the sensing target, and then the base station (equivalent to the first device) can receive the sensing signal from the sensing target to perform sensing measurements.

[0205] For example, in a sensing mode where base station A transmits and base station B receives, base station A can send a sensing signal to the sensing target, and then base station B (equivalent to the first device) can receive the sensing signal from the sensing target to perform sensing measurements.

[0206] Optionally, the sensing information can be acquired based on the sensing measurement of the sensing signal received from the sensing target by the first device. For example, the sensing information may include the sensing measurement result of the sensing signal received from the sensing target by the first device, which may also be referred to as the sensing measurement quantity.

[0207] The sensing services of a sensing target can refer to the services involved in sensing the sensing target. For example, the sensing services of a sensing target may include receiving sensing signals from the sensing target to perform sensing measurements, and / or performing corresponding analysis based on the sensing measurement results of the sensing target.

[0208] Optionally, after the target cell is switched, the second device can participate in the target's sensing services.

[0209] Accordingly, the second device can use the sensing information sent by the first device in the sensing services of the sensing target.

[0210] Optionally, the second device participating in the sensing service of the sensing target may refer to the second device receiving sensing signals from the sensing target and performing sensing measurements.

[0211] For example, a target base station in the target cell after the target undergoes cell handover, or a base station outside the target base station, can receive sensing signals from the target for sensing measurement.

[0212] And / or, the second device participating in the sensing operation of the sensing target can also refer to the second device performing corresponding analysis based on the sensing measurement results of the sensing target.

[0213] For example, the second device is an access network device. The second device can receive sensing signals from the sensing target to perform sensing measurements and analyze the sensing measurement results accordingly.

[0214] For example, the second device is the SF network element of the core network, which can perform corresponding analysis based on the sensing measurement results of the sensing target.

[0215] Optionally, the sensing information can be used for corresponding analysis in sensing services after the sensing target undergoes cell handover.

[0216] As an example, the second device is an access network device. After the target cell undergoes handover, the second device can receive sensing signals from the target and perform sensing measurements. Accordingly, the second device can combine its own sensing measurement results of the target with the sensing information sent by the first device to perform corresponding analysis.

[0217] As another example, the second device is an SF network element in the core network. After the target cell undergoes handover, other devices receiving sensing signals from the target and performing sensing measurements can send the sensing measurement results to the SF network element. Accordingly, the SF network element in the core network can perform corresponding analysis by combining the sensing information sent by the first device with the sensing measurement results sent by other devices.

[0218] Optionally, the first device may send sensing information to the second device after the sensing target performs a cell handover.

[0219] Optionally, if the second device is an access network device, the first device can send sensing information to the second device via the Xn interface.

[0220] Optionally, if the second device is an access network device, the first device may send sensing information to the second device during the context transmission of cell handover.

[0221] Optionally, the first device may send sensing information to the second device via New Radio Sensing Protocol a (NRSPA) signaling.

[0222] There is no limitation on when a sensed target can perform cell handover. For example, a sensed target can perform cell handover after moving to a new cell.

[0223] The type of the perceived target is not limited. For example, the perceived target can be a moving target, such as a vehicle.

[0224] The number of sensing targets is not limited. For example, there can be one or more sensing targets.

[0225] In some possible implementations, the sensing information may include the size information of the sensing target.

[0226] Size information is crucial for sensing targets, as it determines their actual physical size. For example, the size information of a target can include its length, width, and height.

[0227] Optionally, the size information of the perceived target can be obtained through imaging methods, such as ISAR imaging.

[0228] Accordingly, the second device can perceive the target based on its size information. For example, the second device can further determine more accurate size information based on the target's size information.

[0229] Therefore, based on size information, it is helpful to accurately determine the size of the sensed target after cell handover.

[0230] In some possible implementations, the sensing information may include the type of sensing of the target by the first device.

[0231] Optionally, the sensing type may include low-latency sensing, high-precision sensing, etc. Among them, low-latency sensing has requirements on the latency of sensing, while high-precision sensing has requirements on the accuracy of sensing.

[0232] Optionally, the sensing type may remain unchanged as the sensing target undergoes cell handover.

[0233] For example, if the sensing type of the target before cell handover is low-latency sensing, the sensing type after cell handover can also be low-latency sensing.

[0234] In low-latency sensing, base stations can typically send their own coordinates, orientation, and sensing measurements directly to the sensing target without sending them to the SF network elements in the core network, thereby reducing latency.

[0235] Accordingly, if the sensing type in the sensing information is low-latency sensing, and if the second device can receive the sensing signal from the sensing target and perform sensing measurements after the sensing target performs cell handover, the second device can directly send the coordinates and orientation of the second device and the sensing measurement quantity to the sensing target when it learns that the sensing type is low-latency sensing, so as to reduce latency.

[0236] Therefore, based on the perception type, it is beneficial for the second device to make a response that conforms to the perception type when perceiving the target.

[0237] In some possible implementations, the sensing information may include sensing aid information, which can be used to image the sensing target.

[0238] Alternatively, imaging of the perceived target can refer to using imaging techniques to image the perceived target during perception. For example, the imaging technique could be ISAR imaging technology.

[0239] Accordingly, after the target cell is switched, the imaging technology used in sensing can be used to image the target based on sensing auxiliary information.

[0240] Optionally, the sensing assistance information can be based on the imaging of the sensing target by the first device before the cell handover. For example, the sensing assistance information can be information obtained by the first device performing ISAR imaging on the sensing target before the cell handover.

[0241] Optionally, the imaging technology used in sensing can be the same before and after the target cell handover. For example, the imaging technology used in sensing can be ISAR imaging technology both before and after the target cell handover.

[0242] The content of the sensing auxiliary information is not limited. For example, the sensing auxiliary information may include the results of imaging the sensing target before the sensing target undergoes cell handover.

[0243] Therefore, based on the sensing assistance information, it is helpful to assist in imaging the sensing target after the sensing target undergoes cell handover.

[0244] In some possible implementations, the sensing auxiliary information may include at least one of the following: the direction of motion of the sensing target; the speed of motion of the sensing target; the observation time of the sensing target; and the imaging perspective of the sensing target.

[0245] For example, the direction of motion of the perceived target can refer to the direction of movement, travel, or operation of the perceived target.

[0246] For example, the speed of motion of the perceived target can refer to the speed of movement, travel, or operation of the perceived target.

[0247] For example, the observation time of the perceived target can refer to the time during which the first device perceives the perceived target.

[0248] For example, the imaging view of the perceived target can refer to the view when the first device images the perceived target.

[0249] As an example, if the sensing auxiliary information includes the direction of motion of the sensed target, the direction of motion of the sensed target can be quickly determined in the sensing of the sensed target after the sensed target undergoes cell handover.

[0250] As another example, if the sensing auxiliary information includes the direction of motion of the sensing target and the speed of motion of the sensing target, the motion trajectory of the sensing target can be quickly determined in the sensing of the sensing target after the sensing target undergoes cell handover.

[0251] Perception assistance information may also include one or more of the above-mentioned contents, and this application does not limit it.

[0252] Based on the content of the sensing auxiliary information, it helps to improve the efficiency of sensing the sensing target after the sensing target undergoes cell handover.

[0253] In some possible implementations, the perceived information can correspond to the identification (ID) of the perceived target.

[0254] In other words, the sensing information sent from the first device to the second device can be bound to the ID of the sensing target, and different IDs can correspond to different sensing information.

[0255] Optionally, the ID of the perceived target may refer to the ID assigned to the perceived target by the first device during the sensing process.

[0256] Optionally, the perceived information may also include the ID of the perceived target.

[0257] Accordingly, the second device can confirm the correspondence between the perceived information and the perceived target based on the ID of the perceived target.

[0258] Therefore, based on the ID of the perceived target, the second device can clarify the correspondence between the perceived information and the perceived target.

[0259] In some possible implementations, prior to step S1110, the method may further include: the first device receiving a first request from the second device. The first request may be used to request sensing information.

[0260] Accordingly, the first device can send sensing information based on the first request from the second device.

[0261] Optionally, the second device may send a first request to the first device when the sensed target performs a cell handover.

[0262] Optionally, the first request may include the ID of the perceived target.

[0263] In other words, the second device can request sensing information of a specific sensing target from the first device through the first request.

[0264] Based on the first request, the first device can determine the timing for sending sensing information.

[0265] In some possible implementations, the first request can carry the cell handover request corresponding to the sensing target.

[0266] For example, the first device is the source base station in the source cell before the sensing target performs cell handover, and the second device is the target base station in the target cell after the sensing target performs cell handover. Accordingly, the second device may include the first request in sending the cell handover request of the sensing target to the first device.

[0267] Accordingly, the first device can determine the timing for sending sensing information at the same time as receiving the cell handover request corresponding to the sensing target.

[0268] Accordingly, the first device can include sensing information in the cell handover response.

[0269] By carrying the first request in the cell handover request corresponding to the sensing target, the first device can receive the first request in a timely manner.

[0270] Alternatively, in some other possible implementations, prior to step S1110, the method may further include: the first device receiving a second request from the sensing target. The second request may be used to request the first device to send sensing information to the second device.

[0271] Accordingly, the first device can send sensing information to the second device based on the request of the sensing target.

[0272] For example, the first device is a base station other than the source base station in the source cell before the target performs cell handover. The first device is unaware that the target is performing cell handover, so the target can send a second request to the first device to clarify the timing of sending the sensing information.

[0273] Optionally, the sensing target may send a second request to the first device after a cell handover.

[0274] Optionally, the second request may include the ID of the perceived target.

[0275] In other words, the sensing target can request the first device to send its sensing information to the second device through a second request.

[0276] The second request helps the first device determine the timing for sending sensing information.

[0277] Alternatively, in some possible implementations, the first device can determine on its own whether to send sensing information without a request from the second device or the sensing target.

[0278] Accordingly, the second device does not need to send a first request to the first device, and the sensing target does not need to send a second request to the first device.

[0279] For example, the first device is the source base station in the source cell before the target cell handover. The first device can know that the target cell handover has occurred, so the first device can send sensing information after the target cell handover.

[0280] The fact that the first device can independently determine the transmission of sensing information helps to save on the instruction overhead of the second device and the sensing target.

[0281] In some possible implementations, the perceived information can be used by a second device to perform perception fusion of the perceived target.

[0282] Perceptual fusion of a perceived target can refer to the fusion processing based on the perceptual measurement results of the perceived target to obtain the perceptual fusion result of the perceived target.

[0283] As an example, if the second device can receive sensing signals from the sensing target and perform sensing measurements after the target undergoes cell handover, the second device can fuse its own sensing measurement results with the sensing information sent by the first device to obtain a sensing fusion result. In other words, the sensing fusion is equivalent to occurring in the access network, or sensing fusion being performed within the access network.

[0284] As another example, if the second device is an SF network element in the core network, the second device can fuse the sensing information sent by the first device and the sensing target's sensing measurement results after cell handover to obtain a sensing fusion result. In other words, the sensing fusion is equivalent to happening in the core network, or in other words, sensing fusion is performed in the core network.

[0285] Perceptual fusion based on perceived information helps improve the accuracy of perception results.

[0286] In some possible implementations, the communication method 1100 may further include: the second device sending the perception fusion result of the perceived target to the SF network element, wherein the perception fusion result can be obtained by the second device based on the perception information and the perception measurement result of the second device on the perceived target.

[0287] In other words, after fusing the sensing information and the sensing measurement results, the second device can send the sensing fusion result to the SF network element.

[0288] Based on this, it helps SF network elements obtain the fusion sensing information and the sensing fusion results after the second device obtains the sensing measurement results of the sensing target.

[0289] The following is combined Figures 12-14 Method 1100 is illustrated by example. For instance, the following example uses a base station self-transmitting and self-receiving sensing mode. Before the target cell handover, the source RAN self-transmits and self-receives sensing signals to sense the target; after the target cell handover, the target RAN self-transmits and self-receives sensing signals to sense the target.

[0290] Figure 12 The method shown takes perception fusion in the core network as an example, with the first device being the source RAN before cell handover for the perception target, and the second device being an SF network element. Here, SF can include F-control plane (control, C) and F-user plane (user, U).

[0291] like Figure 12 As shown, the method may include steps S1210-S1260.

[0292] In step S1210, the source RAN and SF exchange capability information through UE capability information transfer or TRP configuration.

[0293] In step S1220, the SF-C sends a sensing measurement request to the source RAN to request the source RAN to configure a sensing signal (also known as a sensing reference signal) for the sensing target. Optionally, the SF-C's sensing measurement request can be sent to the source RAN via the AMF.

[0294] In step S1230, the source RAN automatically transmits and receives sensing signals to acquire sensing measurement data (also referred to as sensing measurement quantities or sensing measurement results). Furthermore, the source RAN can perform ISAR imaging on the sensing target to obtain auxiliary information from the ISAR imaging (including the target's direction of motion, velocity, observation time, and imaging angle).

[0295] Typically, during sensing measurements and / or ISAR imaging, the source RAN can report sensing measurements and auxiliary information from ISAR imaging to the SF for sensing fusion (not shown in the figure). However, during sensing measurements and / or ISAR imaging, the sensing measurements and auxiliary information from ISAR imaging usually change over time, so the source RAN can continuously report them.

[0296] In step S1240, when a cell handover occurs at the target, the source RAN reports the target's sensing information to the SF-C. This sensing information may include the target's size information, sensing auxiliary information (including direction of motion, speed of motion, observation time, imaging angle, etc.), and its corresponding ID. It should be noted that the sensing information reported by the source RAN here can be more accurate than the information reported by the source RAN during sensing measurements and / or ISAR imaging.

[0297] For example, the source RAN can determine to send sensing information after determining that the sensing target has been switched to the target cell.

[0298] When the sensing target switches to the target cell, the target RAN can send and receive sensing signals to the sensing target for sensing measurement (not shown in the figure).

[0299] In step S1250, the target RAN reports the size of the perceived target and other sensing information, as well as the corresponding perceived target ID and other sensing data, to the SF-C.

[0300] In step S1260, SF performs fusion processing on the sensing information reported by the source RAN and the sensing data reported by the target RAN to obtain the sensing result.

[0301] based on Figure 12 The method shown allows SF to fuse sensing information reported by the source base station and sensing data reported by the target base station when the sensing target is undergoing cell handover, which helps to improve the sensing accuracy of the sensing target.

[0302] Figure 13 The method shown takes the perception fusion in the access network as an example, with the first device being the source RAN before cell handover for the perception target, and the second device being the target RAN after cell handover for the perception target.

[0303] like Figure 13 As shown, the method may include steps S1310-S1370.

[0304] In step S1310, the source RAN and SF exchange capability information through UE capability information transmission or TRP configuration.

[0305] In step S1320, the SF-C sends a sensing measurement request to the source RAN to request the source RAN to configure a sensing signal (also known as a sensing reference signal) for the sensing target. Optionally, the SF-C's sensing measurement request can be sent to the source RAN via the AMF.

[0306] In step S1330, the source RAN automatically transmits and receives sensing signals to acquire sensing measurement data (also referred to as sensing measurement quantities or sensing measurement results). Furthermore, the source RAN can perform ISAR imaging on the sensing target to obtain auxiliary information from the ISAR imaging (including the target's direction of motion, velocity, observation time, and imaging angle).

[0307] Typically, during sensing measurements and / or ISAR imaging, the source RAN can report sensing measurements and auxiliary information from ISAR imaging to the SF for sensing fusion (not shown in the figure). However, during sensing measurements and / or ISAR imaging, the sensing measurements and auxiliary information from ISAR imaging usually change over time, so the source RAN can continuously report them.

[0308] In step S1340, when a cell handover occurs at the target sensing location, the target RAN sends a sensing context request to the source RAN to request the context information of the target sensing location. This sensing context request is equivalent to the first request described above.

[0309] In step S1350, the source RAN sends a sensing context response to the target RAN to indicate sensing information. The sensing information may include the size information of the sensing target, the corresponding sensing target ID and sensing type, as well as auxiliary information for ISAR imaging (including the sensing target's direction of motion, velocity, observation time, imaging angle, etc.).

[0310] When the target sensing unit switches to the target cell, the target RAN can send and receive sensing signals to the target sensing unit for sensing measurements (not shown in the figure). Furthermore, the target RAN can perform sensing fusion by combining the sensing measurement results with the sensing information sent by the source RAN. Additionally, for low-latency sensing types, the target RAN can send the sensing measurements, along with its own coordinates and orientation, to the target sensing unit to reduce latency.

[0311] In step S1360, the target RAN reports the fused sensing data (equivalent to the sensing fusion result) to the SF-C.

[0312] In step S1370, SF processes the sensing data to obtain the sensing results.

[0313] based on Figure 13 The method shown allows the source and target base stations to exchange target ID, size information, and ISAR imaging auxiliary information when a cell handover occurs. This helps the target base station perform ISAR imaging, improving the accuracy of target perception. Furthermore, the source and target base stations can exchange perception types. For low-latency perception, this facilitates timely transmission of perception measurements and target base station coordinates (directly sending these to the sensing terminal), thereby reducing perception latency.

[0314] Figure 14 The method shown is in Figure 13 Based on the method shown, additional implementation details of the RAN chip's internal structure have been added. The architecture of the RAN chip can be found in the preceding text. Figure 3 . Figure 14 The method shown takes perception fusion in the access network as an example. The first device is the source RAN before cell handover for the perception target, and the second device is the target RAN after cell handover for the perception target. The perception target is the UE. It is worth noting that the source RAN and the target RAN are in Figure 14 Zhonghe showcased RAN.

[0315] like Figure 14 As shown, the method may include steps S1410-S1480.

[0316] Steps S1410-S1460 are the relevant steps before the source RAN or target RAN performs sensing measurements on the UE. The interaction with the LMF / SF is mainly performed by the RU in the RAN, and the interaction with the UE is mainly performed by the CU in the RAN. The sensing configuration information transfer involves the entire RAN, which will not be described in detail here.

[0317] Steps S1470-S1480 constitute the sensing procedure of the source RAN or target RAN for the UE, involving RU, CU, and DU. The reporting of sensing measurement results to LMF / SF is mainly completed by RU.

[0318] When a UE undergoes cell handover, the source RAN can send sensing information (not shown in the figure) to the target RAN. For example, the DUs in the source RAN and target RAN can exchange sensing information via the eCPRI interface. The sensing information may include the size information of the sensing target, the corresponding sensing target ID and sensing type, as well as auxiliary information for ISAR imaging (including the sensing target's direction of motion, speed, observation time, and imaging angle).

[0319] The target RAN can combine the sensing information sent by the source RAN with its own sensing measurement results to perform sensing fusion and obtain the sensing result (not shown in the figure).

[0320] It is worth noting that, Figure 14 The DU in the RAN shown can also be an integrated DU, that is, the DU can include the functions of the DU and RU mentioned above.

[0321] based on Figure 14 The method shown allows DUs in different RANs to exchange target ID and size information via the eCPRI interface when a cell handover occurs, as well as ISAR imaging auxiliary information and sensing type. This helps improve sensing accuracy and reduce sensing latency.

[0322] In addition, Figure 2 Under the open RAN architecture shown, if convergence is performed in the access network, different base stations can exchange sensing information when the sensing target undergoes cell handover. The sensing information can include the size information of the sensing target, the corresponding sensing target ID and sensing type, as well as auxiliary information for ISAR imaging (including the sensing target's direction of motion, speed, observation time, and imaging angle).

[0323] For example, sensing information can be exchanged through the baseband unit (BBU) in the access network equipment (RAN). Within the BBU, the control unit (CU) sends the sensing information to the distributed unit (DU) via a midhaul link, and the DU then sends the sensing information to the radio frequency unit (RU) via a fronthaul link. The sensing information can be transmitted at layer 3. The DU and RU can cooperate to implement the functions of the PHY layer. One DU can be connected to one or more RUs. The functions of the DU and RU can be configured in various ways according to the design. The DU and RU can be co-located or not.

[0324] Access network equipment can exchange ISAR imaging auxiliary information, as well as the size information, corresponding target ID, and sensing type of the sensed target, through the midhaul and fronthaul links. This can help new cells perform ISAR imaging and improve sensing accuracy. At the same time, exchanging sensing types (low latency) can help new cells transmit sensed measurements and base station coordinates and orientation (directly sending sensed measurements and base station coordinates and orientation to the sensing terminal), reducing sensing latency.

[0325] The above combination Figures 11 to 14 This document describes in detail the communication method provided in the embodiments of this application. The following section, in conjunction with... Figures 15 to 17 This application provides a detailed description of the communication device provided in the embodiments of this application.

[0326] Figure 15A schematic block diagram of a communication device 1500 provided in an embodiment of this application is shown. This device 1500 can be used to execute the communication method 1100 described above. The device 1500 can correspond to the first device described in the communication method 1100, or it can correspond to a module or component of the first device. The device 1500 may include at least one unit or module for executing as described in any one of the communication methods 1100 above. Furthermore, each module or unit in the device 1500 can be used to execute the various actions or processes performed by the first device in the method 1100.

[0327] like Figure 12 As shown, the communication device 1500 may include a transceiver module 1510. The transceiver module 1510 can be used to send sensing information to a second device. The sensing information can be based on the sensing acquisition of the sensing target by the first device. The sensing information can be used for sensing services of the sensing target after the sensing target undergoes cell handover.

[0328] In some possible implementations, the sensing information may include the size information of the sensing target.

[0329] In some possible implementations, the sensing information may include the type of sensing of the target by the first device.

[0330] In some possible implementations, the sensing information may include sensing aid information, which can be used to image the sensing target.

[0331] In some possible implementations, the sensing auxiliary information may include at least one of the following: the direction of motion of the sensing target; the speed of motion of the sensing target; the observation time of the sensing target; and the imaging perspective of the sensing target.

[0332] In some possible implementations, the perceived information can correspond to the ID of the perceived target.

[0333] In some possible implementations, before sending the sensing information to the second device, the transceiver module 1510 may also be used to receive a first request from the second device, which may be used to request the sensing information.

[0334] In some possible implementations, the first request can carry the cell handover request corresponding to the sensing target.

[0335] In some possible implementations, before sending the sensing information to the second device, the transceiver module 1510 may also be used to receive a second request from the sensing target, which may be used to request the first device to send the sensing information to the second device.

[0336] In some possible implementations, the perceived information can be used by a second device to perform perception fusion of the perceived target.

[0337] It should be understood that the transceiver module 1510 can be used to perform the various actions or processes performed by the first device in the above-described communication method 1100.

[0338] It should be understood that the specific process of each module in device 1500 performing the above-mentioned corresponding steps is described in the previous description of communication method 1100, and will not be repeated here.

[0339] Figure 16 A schematic block diagram of another communication device 1600 provided in an embodiment of this application is shown. This device 1600 can be used to execute the communication method 1100 described above. This device 1600 can correspond to the second device described in the communication method 1100, or it can correspond to a module or component of the second device. The device 1600 may include at least one unit or module for executing as described in any one of the communication methods 1100 above. Furthermore, each module or unit in the device 1600 can be used to execute the respective actions or processes performed by the second device in the communication method 1100.

[0340] like Figure 16 As shown, the communication device 1600 may include a transceiver module 1610. The transceiver module 1610 can be used to receive sensing information sent by the first device. The sensing information can be based on the sensing acquisition of the sensing target by the first device, and the sensing information can be used for sensing services of the sensing target after the sensing target undergoes cell handover.

[0341] In some possible implementations, the sensing information may include the size information of the sensing target.

[0342] In some possible implementations, the sensing information may include the type of sensing of the target by the first device.

[0343] In some possible implementations, if the sensing type is low-latency sensing, the transceiver module 1610 can also be used to send the coordinates and orientation of the second device to the sensing target.

[0344] In some possible implementations, the sensing information may include sensing aid information, which can be used to image the sensing target.

[0345] In some possible implementations, the sensing auxiliary information may include at least one of the following: the direction of motion of the sensing target; the speed of motion of the sensing target; the observation time of the sensing target; and the imaging perspective of the sensing target.

[0346] In some possible implementations, the perceived information can correspond to the ID of the perceived target.

[0347] In some possible implementations, before receiving the sensing information sent by the first device, the transceiver module 1610 may also be used to send a first request to the first device, which may be used to request the first device to send sensing information.

[0348] In some possible implementations, the first request can carry the cell handover request corresponding to the sensing target.

[0349] In some possible implementations, the perceived information can be used by a second device to perform perception fusion of the perceived target.

[0350] In some possible implementations, the transceiver module 1610 can also be used to send the perception fusion result of the perceived target to the SF network element. The perception fusion result can be obtained by the second device based on the perception information and the perception measurement result of the second device on the perceived target.

[0351] It should be understood that the transceiver module 1610 can be used to perform the various actions or processes performed by the second device in the above-described communication method 1100.

[0352] It should be understood that the specific process of each module in device 1600 performing the above-mentioned corresponding steps is described in the previous description of communication method 1100, and will not be repeated here.

[0353] It should be understood that the "units" in communication devices 1500 and 1600 can be implemented in hardware, software, or by hardware executing corresponding software. For example, a "unit" can refer to an ASIC, electronic circuitry, a processor (e.g., a shared processor, a dedicated processor, or a group processor) and memory for executing one or more software or firmware programs, combined logic circuitry, and / or other suitable components supporting the described functions. Furthermore, a transmitting unit can be replaced by a transmitter, a receiving unit by a receiver, and other units such as a determining unit or an acquiring unit can be replaced by a processor or processing circuitry, each performing the transmitting and receiving operations and related processing operations in its respective method embodiment.

[0354] Figure 17 This illustration shows a schematic block diagram of another communication device 1700 provided in an embodiment of this application. The device 1700 may be a terminal device or an access network device, or it may be a chip, chip system, or processor that supports the terminal device or access network device in implementing the above-described methods. This device can be used to implement the methods described in the above-described method embodiments; for details, please refer to the descriptions in the above-described method embodiments.

[0355] The device 1700 may include at least one processor 1710, which may also be referred to as a processing unit or processing module, and can implement certain control functions. The processor 1710 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, while the central processing unit can be used to control communication devices (such as base stations, baseband chips, user chips, DUs or CUs, etc.), execute software programs, and process data from the software programs.

[0356] In an alternative design, the processor 1710 may also store instructions and / or data that can be executed by the processor 1710 to cause the device 1700 to perform the methods described in the above method embodiments.

[0357] In another alternative design, the device 1700 may include a communication interface 1720 for implementing receiving and transmitting functions. For example, the communication interface 1720 may be a transceiver circuit, interface, interface circuit, or transceiver. The transceiver circuit, interface, interface circuit, or transceiver for implementing receiving and transmitting functions may be separate or integrated. The aforementioned transceiver circuit, interface, interface circuit, or transceiver may be used for reading and writing code / data, or it may be used for transmitting or relaying signals. Optionally, the communication unit in the communication device 1700 may be the communication interface 1720.

[0358] Optionally, the device 1700 may include one or more memories 1730, which may store instructions that can be executed on the processor 1710, causing the device 1700 to perform the methods described in the above method embodiments. Optionally, the memory 1730 may also store data. Optionally, the processor 1710 may also store instructions and / or data. The processor 1710 and the memory 1730 may be provided separately or integrated together.

[0359] Those skilled in the art will understand that, for ease of explanation, Figure 17 Only one memory and processor are shown. In actual terminal devices or access network devices, multiple processors and memories may exist. Memory may also be called storage medium or storage device, etc., and this application embodiment does not limit this.

[0360] For example, a processor may include a baseband processor and a central processing unit (CPU). The baseband processor is mainly used to process communication protocols and communication data, while the CPU is mainly used to control the entire terminal device or access network device, execute software programs, and process the data of the software programs. Figure 17The processor integrates the functions of a baseband processor and a central processing unit (CPU). Those skilled in the art will understand that the baseband processor and CPU can also be independent processors interconnected via technologies such as buses. It will also be understood that terminal devices or access network devices can include multiple baseband processors to adapt to different network standards, and multiple CPUs to enhance their processing capabilities. The various components of the terminal device or access network device can be connected via various buses. The baseband processor can also be described as a baseband processing circuit or a baseband processing chip. The CPU can also be described as a central processing circuit or a central processing chip. The function of processing communication protocols and communication data can be built into the processor or stored as a software program in a storage unit, with the processor executing the software program to implement the baseband processing function.

[0361] It should be understood that, in one possible design, the steps in the method embodiments provided in this application can be implemented by integrated logic circuits in the processor's hardware or by instructions in software form. The steps of the methods disclosed in the embodiments of this application can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software modules can reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method. To avoid repetition, detailed descriptions are not provided here.

[0362] It should be noted that the processor in the embodiments of this application can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiments can be completed by the integrated logic circuitry in the processor's hardware or by instructions in software form. The processor can be a general-purpose processor, a digital signal processor (DSP), an ASIC, an FPGA, or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied as execution by a hardware decoding processor, or as a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory; the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above methods.

[0363] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), EPROM, electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0364] This application also provides a computer-readable storage medium storing a computer program or instructions that, when executed on a computer, cause the methods described in any of the foregoing aspects to be performed.

[0365] This application also provides a computer program product comprising a computer program or instructions that, when executed on a computer, cause the methods described in any of the foregoing aspects to be performed.

[0366] This application also provides a communication device, including a processor and an interface for sending and / or receiving signals, causing the processor to perform various steps or processes in any of the above methods.

[0367] This application also provides a communication system, which includes a first means (such as an access network device) for performing the method in the first aspect and / or a second means (such as an access network device or an SF network element of the core network) for performing the method in the second aspect.

[0368] The above-described device and method embodiments are completely corresponding, with corresponding modules or units performing corresponding steps. For example, a communication unit or communication interface performs the receiving or sending steps in the method embodiment, while other steps besides sending and receiving can be performed by a processing unit or processor.

[0369] In the embodiments of this application, the terms and English abbreviations are exemplary examples given for ease of description and should not be construed as limiting the application in any way. This application does not preclude the possibility of defining other terms that can achieve the same or similar functions in existing or future agreements.

[0370] As used in this specification, the terms "component," "module," "system," etc., are used to refer to computer-related entities, hardware, firmware, combinations of hardware and software, software, or software in execution. For example, a component can be, but is not limited to, a process running on a processor, a processor, an object, an executable file, an execution thread, a program, and / or a computer. As illustrated, applications running on computing devices and computing devices can both be components. One or more components may reside in a process and / or an execution thread, and components may be located on a single computer and / or distributed among two or more computers. Furthermore, these components can be executed from various computer-readable storage media on which various data structures are stored. Components can communicate, for example, via local and / or remote processes based on signals having one or more data packets (e.g., data from two components interacting with another component between a local system, a distributed system, and / or a network, such as the Internet interacting with other systems via signals).

[0371] Those skilled in the art will recognize that the various illustrative logical blocks and steps described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this application.

[0372] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be based on the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0373] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0374] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0375] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0376] In the above embodiments, the functions of each functional unit can be implemented 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 instructions (programs). When the computer program instructions (programs) are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) 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 media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state disks, SSDs).

[0377] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0378] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method, characterized in that, include: The first device sends sensing information to the second device. The sensing information is based on the sensing acquisition of the sensing target by the first device. The sensing information is used for the sensing services of the sensing target after the sensing target undergoes cell handover.

2. The method according to claim 1, characterized in that, The sensing information includes the size information of the sensing target.

3. The method according to claim 1 or 2, characterized in that, The sensing information includes the sensing type of the first device for the sensing target.

4. The method according to any one of claims 1-3, characterized in that, The sensing information includes sensing assistance information, which is used for imaging the sensing target.

5. The method according to claim 4, characterized in that, The perception assistance information includes at least one of the following: The direction of motion of the sensed target; The speed of the sensed target; The observation time of the perceived target; The imaging perspective of the perceived target.

6. The method according to any one of claims 1-5, characterized in that, The perceived information corresponds to the identity identifier (ID) of the perceived target.

7. The method according to any one of claims 1-6, characterized in that, Before the first device sends sensing information to the second device, the method further includes: The first device receives a first request from the second device, the first request being used to request the sensing information.

8. The method according to claim 7, characterized in that, The first request carries the cell handover request corresponding to the sensing target.

9. The method according to any one of claims 1-6, characterized in that, Before the first device sends sensing information to the second device, the method further includes: The first device receives a second request from the sensing target, the second request being used to request the first device to send the sensing information to the second device.

10. The method according to any one of claims 1-9, characterized in that, The perceived information is used by the second device to perform perception fusion of the perceived target.

11. A communication method, characterized in that, include: The second device receives sensing information sent by the first device. The sensing information is based on the sensing acquisition of the sensing target by the first device. The sensing information is used for the sensing services of the sensing target after the sensing target undergoes cell handover.

12. The method according to claim 11, characterized in that, The sensing information includes the size information of the sensing target.

13. The method according to claim 11 or 12, characterized in that, The sensing information includes the sensing type of the first device for the sensing target.

14. The method according to claim 13, characterized in that, If the sensing type is low-latency sensing, the method further includes: The second device sends its coordinates and orientation to the sensing target.

15. The method according to any one of claims 11-14, characterized in that, The sensing information includes sensing assistance information, which is used for imaging the sensing target.

16. The method according to claim 15, characterized in that, The perception assistance information includes at least one of the following: The direction of motion of the sensed target; The speed of the sensed target; The observation time of the perceived target; The imaging perspective of the perceived target.

17. The method according to any one of claims 11-16, characterized in that, The perceived information corresponds to the identity identifier (ID) of the perceived target.

18. The method according to any one of claims 11-17, characterized in that, Before the second device receives the sensing information sent by the first device, the method further includes: The second device sends a first request to the first device, the first request being used to request the first device to send the sensing information.

19. The method according to claim 18, characterized in that, The first request carries the cell handover request corresponding to the sensing target.

20. The method according to any one of claims 11-19, characterized in that, The perceived information is used by the second device to perform perception fusion of the perceived target.

21. The method according to claim 20, characterized in that, The method further includes: The second device sends the perception fusion result of the perceived target to the SF network element of the perception function. The perception fusion result is obtained by the second device based on the perception information and the perception measurement result of the second device on the perceived target.

22. A communication device, characterized in that, It includes at least one unit or module for performing the method as described in any one of claims 1-10 or 11-21.

23. A communication device, characterized in that, The communication device includes at least one processor coupled to at least one memory for storing a computer program or instructions, which, when executed by the at least one processor, cause the communication device to implement the method as described in any one of claims 1-10 or 11-21.

24. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program or instructions that, when executed on a computer, cause the method as described in any one of claims 1-10 or 11-21 to be performed.

25. A computer program product, characterized in that, The computer program product includes a computer program or instructions that, when run on a computer, cause the method as described in any one of claims 1-10 or 11-21 to be performed.

26. A communication system, characterized in that, It includes a first means for performing the method as described in any one of claims 1-10 and / or a second means for performing the method as described in any one of claims 11-21.

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