Continuity processing method and apparatus for sensing service, device, and storage medium

Abstract

The present application relates to the technical field of communications, and discloses a continuity processing method and apparatus for a sensing service, a device, and a storage medium. The continuity processing method for a sensing service in embodiments of the present application comprises: when a UE hands over from a source base station to a target base station, the target base station receives sensing-related information from the source base station or an SF, determines sensing configuration information on the basis of the sensing-related information, and sends the sensing configuration information to the source base station, the SF, or the UE.

Description

Method, apparatus and device for processing continuity of sensing service and storage medium

[0001] Priority information

[0002] The present application claims priority to the Chinese patent application No. 202411327366.X, filed on September 23, 2024, and entitled "Method, apparatus and device for processing continuity of sensing service and storage medium", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present application belongs to the field of communication technology, and particularly relates to a method, apparatus and device for processing continuity of sensing service and storage medium. BACKGROUND

[0004] For a mobile communication system (including a related 5G system and a future mobile communication system (such as a 6G system) and the like), not only has a communication capability, but also has a sensing capability. Among them, the sensing capability can be understood as: one or more devices with sensing capability can realize detection, tracking, identification, imaging and the like on a target object, event or environment in which the device is located through transmission and reception of wireless signals.

[0005] The sensing mode of the sensing service usually includes the following two kinds: a base station transmits a sensing signal, a terminal receives the sensing signal and performs measurement, and reports sensing measurement data; a terminal transmits a sensing signal, a base station receives the sensing signal and performs measurement, and reports sensing measurement data. In the two sensing modes, the terminal can be mobile. When the terminal moves from the coverage range of a base station 1 to the coverage range of a base station 2, the terminal or the base station 2 exists a sensing signal reception failure, thereby causing the sensing service to be interrupted. SUMMARY

[0006] The embodiments of the present application provide a method, apparatus and device for processing continuity of sensing service and storage medium, which can ensure the continuity of the sensing service in the process of communication switching or sensing switching.

[0007] In a first aspect, a method for processing continuity of sensing service is provided, which is executed by a target base station, and the method comprises:

[0008] When a user equipment (UE) is switched from a source base station to a target base station, receiving sensing related information from the source base station or a sensing function (SF);

[0009] Determining sensing configuration information according to the sensing related information;

[0010] Sending the sensing configuration information to the source base station, the SF or the UE.

[0011] In a second aspect, a method for handling continuity of sensing service is provided, which is performed by a UE, and includes:

[0012] receiving, from a target base station or a sensing function (SF), sensing configuration information when the UE is handed over from a source base station to the target base station;

[0013] performing reception, measurement or transmission of sensing signals according to the sensing configuration information.

[0014] In a third aspect, a method for handling continuity of sensing service is provided, which is performed by a source base station, and includes:

[0015] sending, to a target base station, sensing-related information when a UE is handed over from the source base station to the target base station, or sending, to a sensing function (SF) or an access and mobility management function (AMF), handover information indicating that the UE is handed over.

[0016] In a fourth aspect, a method for handling continuity of sensing service is provided, which is performed by an AMF, and includes:

[0017] sending, to a sensing function (SF), handover information indicating that a UE is handed over when the UE is handed over from a source base station to a target base station.

[0018] In a fifth aspect, a method for handling continuity of sensing service is provided, which is performed by a SF, and includes:

[0019] receiving handover information sent by a source base station or an access and mobility management function (AMF), the handover information indicating that a user equipment (UE) is handed over;

[0020] requesting, from a target base station, sensing configuration information.

[0021] In a sixth aspect, an apparatus for handling continuity of sensing service is provided, and includes:

[0022] a receiving module configured to receive, from a source base station or a sensing function (SF), sensing-related information when a UE is handed over from the source base station to a target base station;

[0023] a processing module configured to determine sensing configuration information according to the sensing-related information;

[0024] a sending module configured to send the sensing configuration information to the source base station, the SF or the UE.

[0025] In a seventh aspect, an apparatus for handling continuity of sensing service is provided, and includes:

[0026] receiving, from a target base station or a sensing function (SF), sensing configuration information when a user equipment (UE) is handed over from a source base station to the target base station;

[0027] performing, by a processing module, reception, measurement or transmission of a sensing signal according to the sensing configuration information.

[0028] In an eighth aspect, a device for handling sensing service continuity is provided, the device comprising:

[0029] sending, to a target base station, sensing related information when a user equipment (UE) is handed over from a source base station to the target base station, or sending, to a sensing function (SF) or an access and mobility management function (AMF), handover information indicating that the UE is handed over.

[0030] In a ninth aspect, a device for handling sensing service continuity is provided, the device comprising:

[0031] sending, to a sensing function (SF), handover information indicating that a user equipment (UE) is handed over when the UE is handed over from a source base station to a target base station.

[0032] In a tenth aspect, a device for handling sensing service continuity is provided, the device comprising:

[0033] receiving, from a source base station or an access and mobility management function (AMF), handover information indicating that a user equipment (UE) is handed over;

[0034] requesting, by a processing module, sensing configuration information from a target base station.

[0035] In an eleventh aspect, a device for handling sensing service continuity is provided, the device being configured to perform the steps of the method of the first aspect, or implement the steps of the method of the second aspect, or implement the steps of the method of the third aspect, or implement the steps of the method of the fourth aspect, or implement the steps of the method of the fifth aspect.

[0036] In a twelfth aspect, a target base station is provided, the target base station comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement the steps of the method of the first aspect.

[0037] In a thirteenth aspect, a target base station is provided, comprising a processor and a communication interface, wherein the communication interface is configured to receive sensing-related information from a source base station or a sensing function (SF) when a user equipment (UE) is handed over from the source base station to the target base station, and the processor is configured to determine sensing configuration information according to the sensing-related information, and the communication interface is further configured to send the sensing configuration information to the source base station, the SF or the UE.

[0038] In a fourteenth aspect, a UE is provided, comprising a processor and a memory storing programs or instructions executable on the processor, which when executed by the processor implement the steps of the method according to the second aspect.

[0039] In a fifteenth aspect, a UE is provided, comprising a processor and a communication interface, wherein the communication interface is configured to receive sensing configuration information from a target base station or a sensing function (SF) when a user equipment (UE) is handed over from a source base station to the target base station, and the processor is configured to perform sensing signal reception, measurement or transmission according to the sensing configuration information.

[0040] In a sixteenth aspect, a source base station is provided, comprising a processor and a memory storing programs or instructions executable on the processor, which when executed by the processor implement the steps of the method according to the third aspect.

[0041] In a seventeenth aspect, a source base station is provided, comprising a processor and a communication interface, wherein the communication interface is configured to send sensing-related information to a target base station or send handover information to a sensing function (SF) or an access and mobility function (AMF) when a user equipment (UE) is handed over from the source base station to the target base station, and the handover information is configured to indicate that the UE is handed over to receive sensing configuration information.

[0042] In an eighteenth aspect, an AMF is provided, comprising a processor and a memory storing programs or instructions executable on the processor, which when executed by the processor implement the steps of the method according to the fourth aspect.

[0043] In a nineteenth aspect, an AMF is provided, comprising a processor and a communication interface, wherein the communication interface is configured to send handover information to a sensing function (SF) when a user equipment (UE) is handed over from a source base station to a target base station, and the handover information is configured to indicate that the UE is handed over.

[0044] In a twentieth aspect, a SF is provided, comprising a processor and a memory storing programs or instructions executable on the processor, which when executed by the processor implement the steps of the method according to the fifth aspect.

[0045] In a twenty-first aspect, an SF is provided, including a processor and a communication interface, wherein the communication interface is configured to receive switching information sent by a source base station or an access and mobility management function (AMF), and the processor is configured to request sensing configuration information from a target base station.

[0046] In a twenty-second aspect, a readable storage medium is provided, on which a program or instruction is stored, and the program or instruction is executed by a processor to implement the steps of the method in the first aspect, or implement the steps of the method in the second aspect, or implement the steps of the method in the third aspect, or implement the steps of the method in the fourth aspect, or implement the steps of the method in the fifth aspect.

[0047] In a twenty-third aspect, a wireless communication system is provided, including a target base station, a UE, a source base station, an AMF, and an SF, wherein the target base station is configured to implement the steps of the method in the first aspect, the UE is configured to implement the steps of the method in the second aspect, the source base station is configured to implement the steps of the method in the third aspect, the AMF is configured to implement the steps of the method in the fourth aspect, and the SF is configured to implement the steps of the method in the third aspect.

[0048] In a twenty-fourth aspect, a chip is provided, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to run a program or instruction to implement the steps of the method in the first aspect, or implement the steps of the method in the second aspect, or implement the steps of the method in the third aspect, or implement the steps of the method in the fourth aspect, or implement the steps of the method in the fifth aspect.

[0049] In a twenty-fifth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method in the first aspect, or implement the steps of the method in the second aspect, or implement the steps of the method in the third aspect, or implement the steps of the method in the fourth aspect, or implement the steps of the method in the fifth aspect.

[0050] In the embodiments of the present application, when a UE switches from a source base station to a target base station, the target base station receives sensing-related information from the source base station or an SF, determines sensing configuration information according to the sensing-related information, and sends the sensing configuration information to the source base station, the SF, or the UE. The target base station generates the sensing configuration information according to the sensing-related information and sends the sensing configuration information to the UE, so that the UE and the target base station can perform sensing-related operations based on the sensing configuration information, thereby ensuring the continuity of the sensing service after the UE switches from the source base station to the target base station. BRIEF DESCRIPTION OF DRAWINGS

[0051] Figure 1 shows a network architecture diagram of a sensing system to which embodiments of the present application can be applied;

[0052] Figure 2 is a signaling flow diagram of a sensing service;

[0053] Figure 3 is a diagram showing UE movement in a sensing mode one;

[0054] Figure 4 is a diagram showing UE movement in a sensing mode two;

[0055] Figure 5 is a flow diagram of a continuity processing method of a sensing service provided by an embodiment of the present application;

[0056] Figure 6 is a flow diagram of a continuity processing method of a sensing service provided by an embodiment of the present application;

[0057] Figure 7 is a flow diagram of a continuity processing method of a sensing service provided by an embodiment of the present application;

[0058] Figure 8 is a flow diagram of a continuity processing method of a sensing service provided by an embodiment of the present application;

[0059] Figure 9 is a flow diagram of a continuity processing method of a sensing service provided by an embodiment of the present application;

[0060] Figure 10 is a signaling flow diagram of a continuity processing method of a sensing service provided by an embodiment of the present application;

[0061] Figure 11 is a signaling flow diagram of a continuity processing method of a sensing service provided by an embodiment of the present application;

[0062] Figure 12 is a signaling flow diagram of a continuity processing method of a sensing service provided by an embodiment of the present application;

[0063] Figure 13 is another signaling flow diagram of a continuity processing method of a sensing service provided by an embodiment of the present application;

[0064] Figure 14 is a signaling flow diagram of a continuity processing method of a sensing service provided by an embodiment of the present application;

[0065] Figure 15 is another signaling flow diagram of a continuity processing method of a sensing service provided by an embodiment of the present application;

[0066] Figure 16 is a signaling flow diagram of a continuity processing method of a sensing service provided by an embodiment of the present application;

[0067] Figure 17 is a signaling flow diagram of a continuity processing method of a sensing service provided by an embodiment of the present application;

[0068] FIG. 18 is a signaling flow chart of a method for processing continuity of a sensing service according to an embodiment of the present application;

[0069] FIG. 19 is a signaling flow chart of a method for processing continuity of a sensing service according to another embodiment of the present application;

[0070] FIG. 20 is a signaling flow chart of a method for processing continuity of a sensing service according to another embodiment of the present application;

[0071] FIG. 21 is a signaling flow chart of a method for processing continuity of a sensing service according to another embodiment of the present application;

[0072] FIG. 22 is a signaling flow chart of a method for processing continuity of a sensing service according to another embodiment of the present application;

[0073] FIG. 23 is a signaling flow chart of a method for processing continuity of a sensing service according to another embodiment of the present application;

[0074] FIG. 24 is a schematic block diagram of a device for processing continuity of a sensing service according to an embodiment of the present application;

[0075] FIG. 25 is a schematic block diagram of a device for processing continuity of a sensing service according to another embodiment of the present application;

[0076] FIG. 26 is a schematic block diagram of a device for processing continuity of a sensing service according to another embodiment of the present application;

[0077] FIG. 27 is a schematic block diagram of a device for processing continuity of a sensing service according to another embodiment of the present application;

[0078] FIG. 28 is a schematic block diagram of a device for processing continuity of a sensing service according to another embodiment of the present application;

[0079] FIG. 29 is a schematic block diagram of a communication device according to an embodiment of the present application;

[0080] FIG. 30 is a schematic block diagram of a terminal according to an embodiment of the present application;

[0081] FIG. 31 is a schematic block diagram of a network-side device according to an embodiment of the present application. DETAILED DESCRIPTION

[0082] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0083] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0084] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0085] It is worth noting that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems.

[0086] Figure 1 shows a network architecture block diagram of a perception system to which the embodiments of the present application can be applied. The perception system includes a user equipment (UE) 11, a perception consumer device 12, an access network device 13 and a core network 14.

[0087] The UE 11 can be a terminal-side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a notebook computer, a Personal Digital Assistant (PDA), a palm computer, a netbook, an Ultra-mobile Personal Computer (UMPC), a Mobile Internet Device (MID), an Augmented Reality (AR) device, a Virtual Reality (VR) device, a robot, a Wearable Device, a flight vehicle, a Vehicle User Equipment (VUE), a shipboard device, a Pedestrian User Equipment (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game machine, a Personal Computer (PC), a teller machine, or a self-service machine. The Wearable Device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart anklet, a smart necklace, and the like), a smart wristband, smart clothing, and the like. The vehicle-mounted device can also be referred to as a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit. It should be noted that the specific type of the UE 11 is not limited in the embodiments of the present application.

[0088] The perception consumer device 12 is also referred to as a consumer UE, and is used to consume the perception service provided by the network side. The perception consumer device 12 can be various types of UEs mentioned above, a network management device, a third-party service function network element, and the like.

[0089] The access network device 13 can also be referred to as a radio access network (RAN) device, a radio access network function, or a radio access network unit. The access network device 12 can include a base station, a wireless local area network (WLAN) access point (AP), or a wireless fidelity (WiFi) node, etc. Among them, the base station can be referred to as a node B (NB), an evolved node B (eNB), a next generation node B (gNB), a new radio node B (NR node B), an access point, a relay base station (RBS), a serving base station (SBS), a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home node B (HNB), a home evolved node B, a transmit / receive point (TRP), or some other suitable terminology in the art, as long as the same technical effect is achieved. The base station is not limited to a specific technical term, and it should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0090] The core network 14 includes a plurality of core network devices, which can also be referred to as core network nodes, core network functions, or core network elements, etc., including but not limited to at least one of the following: a mobility management entity (MME), an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), a policy control function (PCF), a policy and charging rules function (PCRF), an edge application server discovery function (EASDF), a unified data management (UDM), a unified data repository (UDR), a home subscriber server (HSS), a centralized network configuration (CNC), a network repository function (NRF), a network exposure function (NEF), a local NEF (L-NEF), a binding support function (BSF), an application function (AF), a location management function (LMF), a gateway mobile location center (GMLC), a network data analytics function (NWDAF), etc. It should be noted that only the core network devices in the NR system are taken as examples for introduction in the embodiments of the present application, and the specific types of core network devices are not limited. If the names of the core network devices mentioned in the embodiments of the present application change in subsequent protocol versions (for example, 6G), they are also within the protection scope of the present application.

[0091] Sensing Function (SF) is a network element introduced to support sensing services. The SF can directly or indirectly interact with sensing devices (including sensing signal transmitting devices and sensing signal measuring devices) to exchange signaling and / or sensing service data corresponding to the sensing services. Optionally, the SF can also perform corresponding data processing or analysis on the acquired sensing service data (such as sensing measurement data), and provide sensing service processing results or sensing service analysis results to the sensing consumer device 12.

[0092] In the sensing system shown in FIG. 1, the SF network element is located in the core network 14. Optionally, the SF can also be located in the RAN measurement. Therefore, the SF network element can also be understood as a network node responsible for at least one function of sensing request processing, sensing resource scheduling, sensing information interaction, sensing data processing, etc. in the core network and / or RAN. The SF can be an independent network element independent of the existing network elements in the NR system, or can be integrated into the existing network elements in the NR system, for example, the SF can be a network element upgraded from the AMF or the Location Management Function (LMF) in the NR system.

[0093] Optionally, the core network device can be implemented by one or more functional modules in one device, or can be implemented by multiple devices together, and the embodiments of the present application do not make specific limitations thereto. It can be understood that the above-mentioned functional modules can be network elements in hardware devices, software functional modules running on special hardware, or virtualized functional modules instantiated on a platform (for example, a cloud platform).

[0094] In the embodiments of the present application, the sensing service is also referred to as a sensing service (Sensing service), and the two can be replaced with each other.

[0095] In the sensing system described in FIG. 1, only several core network devices associated with the SF sensing service are shown: AMF, AF, SF, and NEF. It can be understood that according to different sensing service scenarios, the network architecture of the sensing system provided in the present application can include but is not limited to that shown in FIG. 1, such as more or fewer network elements than FIG. 1, etc., which are not limited herein.

[0096] FIG. 2 is a signaling flow diagram of a sensing service. As shown in FIG. 2, the sensing service flow includes the following steps:

[0097] S101, the sensing consumer device sends an application layer message to the AF, and the application layer message includes an identity (ID) of the sensing consumer device and description information of the sensing service.

[0098] This step is an optional step. This step can also not be performed before S102a or S102b.

[0099] S102a, the AF sends a sensing service request message to the SF through the NEF.

[0100] The sensing service request message is used to request the SF to perform the sensing service, and the sensing service request message carries sensing service description information.

[0101] In this step, the AF can directly send the sensing service request message to the SF through the NEF, or first send the sensing service request message to the AMF through the NEF, and then send the sensing service request message to the SF by the AMF.

[0102] S102b, the sensing consumer device sends a sensing service request message to the SF.

[0103] Optionally, the sensing consumer device can also directly send the sensing service request message to the SF, which means that the sensing consumer device can directly send the sensing service request message to the SF without going through the AF, or first send the sensing service request message to the AMF, and then send the sensing service request message to the SF by the AMF.

[0104] S103, the SF sends sensing service related information to the AMF.

[0105] The sensing service related information can include a sensing service correlation ID, a sensing device ID, and sensing service configuration information, and optionally, sensing service description information.

[0106] S104, the AMF sends the sensing service related information to the sensing UE.

[0107] The sensing UE is a sensing measurement device, and the sensing base station is a sensing signal transmission device. For example, the AMF sends a downlink non-access stratum transport (DL NAS transport) message to the sensing UE, and the DL NAS transport message includes sensing service related information. Alternatively, the AMF sends an N2 transport message to the sensing base station, and the N2 transport message includes sensing service related information. After receiving the sensing service related information, the sensing base station sends a radio resource management (RRM) reconfiguration message to the sensing UE, and the RRM reconfiguration message includes sensing measurement control information, which includes information of a transmission resource of a sensing signal.

[0108] In S105, the sensing UE performs sensing measurement according to the sensing service related information to obtain sensing measurement data (also referred to as sensing measurement result).

[0109] In S106, the sensing UE sends an uplink (UL) NAS transport message to the AMF, and the UL NAS transport message includes a sensing data report.

[0110] The sensing data report includes sensing measurement data measured by the sensing UE.

[0111] In S107, the AMF sends the sensing data report to the SF.

[0112] In S108, the SF analyzes the sensing measurement data to obtain a sensing service analysis result.

[0113] Optionally, the SF can also not analyze the sensing measurement data, but directly send the sensing measurement data to the AF.

[0114] In S109, the SF sends the sensing measurement data and / or the sensing service analysis result to the AF.

[0115] The AF sends the sensing measurement data and / or the sensing service analysis result to a sensing consumption device.

[0116] The sensing mode (also referred to as Uu sensing mode) of the sensing service includes the following two modes: sensing mode one, a base station sends a sensing signal, and a UE measures (receives) the sensing signal; and sensing mode two, a UE sends a sensing signal, and a base station measures (receives) the sensing signal.

[0117] In the related art, the mobility of the UE is not considered, and the mobility of the UE can cause interruption of the sensing service.

[0118] FIG. 3 is a schematic diagram of UE moving in the perception mode one, as shown in FIG. 3, in the perception mode one, the UE acts as a perception signal measurement device, receives and measures the perception signal sent by the base station, and sends the perception measurement data to the SF. The perception effective range of the UE in the two cells is shown in the figure, the UE receives and measures the perception signal sent by the base station 1 in the cell 1, and sends the perception measurement data to the SF, the UE receives and measures the perception signal sent by the base station 2 in the cell 2, and sends the perception measurement data to the SF. When the UE moves from the base station 1 to the base station 2, the UE has a situation of failure in receiving the perception signal, thereby causing the interruption of the perception service and failing to meet the continuity of the perception service.

[0119] It should be noted that in the perception mode one, the size of the perception coverage area and the communication coverage area of the base station can be the same.

[0120] FIG. 4 is a schematic diagram of UE moving in the perception mode two, as shown in FIG. 4, in the perception mode two, the UE acts as a perception signal sending device, sends the perception signal to the base station, and the base station receives and measures the perception signal. When the UE is in the cell 1, the base station 1 receives and measures the perception signal sent by the UE, and the base station 1 sends the perception measurement data to the SF. When the UE moves from the base station 1 to the base station 2, the base station 2 has a situation of failure in receiving the perception signal, thereby causing the interruption of the perception service and failing to meet the continuity of the perception service.

[0121] The embodiment of the present application provides a continuity processing method of a perception service, which is used for guaranteeing the continuity of the perception service in a switching process. The switching process can be a communication switching or a perception switching. The communication switching refers to an existing cell switching, and the perception switching refers to switching from one perception coverage range to another perception coverage range.

[0122] In the related NR system, there are mainly two switching types in the communication switching: Xn switching and N2 switching.

[0123] In the Xn switching, the source base station sends a switching request to the target base station through an Xn interface, the target base station performs permission control and provides a new RRC configuration as part of the switching request confirmation. The AMF and the UPF are not relocated in the Xn switching process.

[0124] The N2 switching involves the signaling interaction between the AMF and the base station, and in the N2 switching process, the signaling is mainly transmitted through an N2 interface. The N2 switching involves the participation of the core network, and is suitable for a larger range of switching. The N2 switching does not require an available Xn interface between the source base station and the target base station, and can be used for migration within the same AMF or migration between different AMFs.

[0125] With reference to the accompanying drawings, the continuity processing method for perception service provided by the embodiments of the present application will be described in detail in combination with some embodiments and application scenarios.

[0126] Embodiment one

[0127] FIG. 5 is a flowchart of the continuity processing method for perception service provided by the embodiment one of the present application, and the execution subject of the embodiment is a target base station. As shown in FIG. 5, the method provided by the embodiment includes the following steps.

[0128] S201. When the UE switches from a source base station to a target base station, the target base station receives perception-related information from the source base station or an SF.

[0129] Optionally, the target base station receives the perception-related information from the source base station or the SF in a communication switching process or a perception switching process. Or, the target base station receives the perception-related information from the source base station or the SF in a process in which the UE switches from the source base station to the target base station, and the switching is a communication switching or a perception switching.

[0130] The target base station refers to a new base station to which the UE plans or decides to switch in a communication switching process or a perception switching process. The UE will trigger a communication switching or a perception switching due to a change in location in a moving process. After the communication switching or the perception switching is completed, the UE communicates with the target base station to implement a perception service. The source base station is a base station that performs a perception service with the UE before the communication switching or the perception switching, or the source base station is understood as a base station that currently performs a perception service with the UE.

[0131] The perception-related information is perception-related information of a first perception service. The first perception service is a perception service currently (or understood as in the source base station) executed by the UE. The number of the first perception service can be one or more. The first perception service can be detection of a target object, tracking of the target object, recognition of a specific event, or detection of an environmental temperature, detection of an environmental air pressure, etc.

[0132] Optionally, the perception-related information includes at least one of the following (1)-(12):

[0133] (1) Description information of the perception service.

[0134] (2) A first indication, the first indication is used to indicate the target base station to generate or provide perception configuration information.

[0135] (3) Perception capability information of the UE.

[0136] (4) Perception authorization information of the UE.

[0137] (5) Sensing mode, including a mode that the base station transmits a sensing signal and the UE receives and measures the sensing signal, or a mode that the UE transmits a sensing signal and the base station receives and measures the sensing signal.

[0138] (6) Sensing method.

[0139] (7) Sensing Quality of Service (QoS) information.

[0140] (8) Sensing association ID, which is used to identify the same sensing session or task.

[0141] (9) Address related information of the SF.

[0142] (10) Sensing related Data Detwork Name (DNN) and / or slice.

[0143] (11) UE ID.

[0144] (12) First sensing configuration information.

[0145] The description information of the sensing service is used to describe the sensing service. Optionally, the description information of the sensing service includes at least one of the following (1a)-(1f):

[0146] (1a) Sensing service type.

[0147] The type of the first sensing service is defined, which can be defined according to the sensing physical range and real-time requirement. For example, the type of the first sensing service includes but is not limited to: Type I, large sensing range and high real-time requirement (Delay Critical LSS); Type II, large sensing range and low real-time requirement; Type III, small sensing range and high real-time requirement; Type IV, small sensing range and low real-time requirement.

[0148] (1b) Sensing service purpose, such as sensing service for breathing monitoring, surrounding traffic environment monitoring, target tracking, target detection, etc.

[0149] (1c) Sensing service granularity, which can be per UE or per area. For example, the sensing service granularity indicates that the sensing service is for a single user or a user group, or indicates that the sensing service is for a target area.

[0150] (1d) Perception service time, which defines the time information of the execution of the perception service. It can be absolute time information (e.g., Monday, 13:00-19:00) or relative time information (e.g., within the next month). The time information can include a start time, an end time, or a duration, etc.

[0151] (1e) Reporting information of the perception data, which is used to define the conditions, reporting time, reporting format, reporting times, etc. of the reporting of the perception data.

[0152] For example, the reporting condition can be event-triggered or periodically triggered. If it is the former, the event description information (e.g., judging that the user is in a driving state) is further included in the reporting condition; if it is the latter, the reporting period information (e.g., every 5 minutes) is further included in the reporting condition.

[0153] The reporting time is used to indicate the time range in which the perception measurement data needs to be reported, and the reporting time can be consistent or inconsistent with the perception service time described above.

[0154] The reporting format is used to indicate the form in which the perception data is reported, such as indicating that it is reported in binary / text form, etc.

[0155] The reporting times is used to indicate whether it is one-time reporting or multiple times reporting, and the number of times of multiple times reporting.

[0156] (1f) QoS requirement of the perception service.

[0157] Optionally, the QoS of the perception service includes the quality parameters of one or more dimensions in Table 1 below:

[0158] Table 1

[0159] The perception capability information of the UE refers to the capability information of the UE that has or does not have in relation to the perception service. Optionally, the perception capability information of the UE includes at least one of the following: frequency band, frequency point, power, period, etc. supported by the UE for receiving, measuring, or transmitting the perception signal; and the perception method supported by the UE.

[0160] The perception authorization information of the UE is used to indicate that the UE is allowed to transmit or measure the perception signal, or the UE is allowed to execute a certain type of perception service.

[0161] The perception method is used to indicate the transmitting device and the receiving device (or the measuring device) of the perception signal, including but not limited to the perception mode one and the perception mode two described above.

[0162] The perception method refers to a calculation method or measurement method for calculating the perception measurement data using the perception signal. Exemplarily, the perception method includes at least one of the following:

[0163] DL-TDOA (Downlink Time Difference of Arrival) perception method: This method relates to how the perception device estimates the perception measurement data based on the signal measurement values received from multiple NR transmitter reference points (TRPs) and the geographic coordinates of the TRPs; it also includes the auxiliary data information exchanged between the SF and the perception device.

[0164] E-CID (Enhanced Cell-ID) perception method: The E-CID perception method uses the round-trip time (RTT) of the wireless signal and the angle of arrival (AoA) of the uplink signal to assist perception. By analyzing the time difference between the time preambles at the transmission and reception ends, the distance between the base station and the user equipment (UE) can be calculated, thereby improving the perception accuracy.

[0165] OTDOA (Observed Time Difference of Arrival) perception method: OTDOA is a network-assisted perception method that uses multiple reference signal transmission time differences to calculate the position movement or deformation of the perception object. This method requires time synchronization and calibration provided by the network, and determines the perception measurement data by measuring the time difference of signal arrival.

[0166] Multi-RTT (Round-Trip Time) perception method: This is a perception technology that uses signal round-trip time to calculate the distance by measuring the time from the sending end to the receiving end and back, and then to perceive the measurement quantity.

[0167] Perception QoS information is used to describe the QoS requirements of the QoS flow corresponding to the perception service, such as the accuracy of the perception, the priority of the QoS flow, the priority of resource allocation, the guaranteed bit rate, the packet loss rate, the delay threshold, etc.

[0168] The perception association ID is also called the association ID of the perception service, and is used to identify the same perception session or task. During the handover process, the SF can associate the perception measurement data under the source base station with the perception measurement data under the target base station or to the same perception service according to the perception association ID.

[0169] The address-related information of the SF can be an Internet Protocol (IP) address of the SF, a Fully Qualified Domain Name (FQDN) of the SF, and / or a port number (tunnel number).

[0170] The perception-related DNN and / or slice are used to establish a perception transmission channel between the base station and the SF, and the perception transmission channel is used for the base station to report perception data, or to report measurement data to the SF, or to be used for the SF to issue a perception task or a perception-related parameter to the base station.

[0171] The first perception configuration information is perception configuration information used by the UE in a cell where the source base station is located, or is pre-configured perception configuration information, and is used to describe how the UE receives, measures, or transmits a perception signal in a cell where the source base station or the target base station is located.

[0172] Optionally, the perception-related information is different in different perception modes. For example, in a first perception mode, i.e., the perception signal transmitting device is the target base station, and the perception signal receiving and measuring device is the UE, the perception-related information includes any one or more of the following (8)-(10) or the remaining. In a second perception mode, i.e., the perception signal transmitting device is the UE, and the perception signal receiving device is the target base station, the perception-related information includes at least one of the following (1)-(12).

[0173] Optionally, the perception-related information is different for different perception services, for example,

[0174] In an implementation manner, in a process in which the UE is handed over from the source base station to the target base station, the source base station can send the perception-related information of the first perception service to the target base station after determining to be handed over to the target base station.

[0175] In the Xn handover process, the source base station carries the perception-related information of the first perception service in a handover request and sends the handover request to the target base station.

[0176] In the N2 handover process, the source base station sends a handover request to the target base station through the AMF, and the handover process includes the perception-related information.

[0177] In another implementation manner, in a process in which the UE is handed over from the source base station to the target base station, the source base station or the AMF triggers the SF to generate the perception-related information and send the perception-related information to the target base station.

[0178] In the Xn handover process, after determining to be handed over to the target base station, the source base station notifies the SF that the UE has been handed over, and if the SF determines that the first perception service needs to maintain continuity, the SF generates the perception-related information and sends the perception-related information to the target base station.

[0179] In the N2 handover process, the SF is informed that the UE has undergone handover, and if the SF determines that the first awareness service needs to maintain continuity, the SF generates awareness-related information and sends the awareness-related information to the target base station.

[0180] S202, the target base station determines the awareness configuration information according to the awareness-related information.

[0181] Optionally, the awareness configuration information is used to describe how the UE receives, measures or transmits the awareness signal, or is used to describe the transmission configuration information of the awareness signal transmission device (UE or target base station) transmitting the awareness signal, or is used to describe how the awareness signal transmission device transmits the awareness signal, or is used to describe how the awareness signal receiving device receives the awareness signal.

[0182] Optionally, the awareness configuration information includes at least one of the following (13)-(16):

[0183] (13) Frequency domain resource information of transmission or reception of the awareness signal.

[0184] (14) Transmission power of the awareness signal.

[0185] (15) Transmission period or reception period of the awareness signal.

[0186] (16) Transmission frequency point or reception frequency point of the awareness signal.

[0187] (17) Transmission occasion or reception occasion of the awareness signal.

[0188] The frequency domain resource of the transmission or reception of the awareness signal includes but is not limited to the following resources: synchronization signal block (Synchronization Signal Block, SSB), channel state information (Channel State Information, CSI), positioning reference signal (Positioning Reference Signal, PRS) or cell-specific reference signal (Cell-specific Reference Signal, CRS).

[0189] When the awareness signal transmission device is the target base station, the awareness configuration information includes at least one of the following: description of the SSB, CSI, PRS or CRS of the target base station transmitting the awareness signal; power, period, frequency point and occasion of the target base station transmitting the awareness signal.

[0190] When the sensing signal sending device is a UE, the sensing configuration information includes at least one of the following: a description of an SSB, a CSI, a PRS, or a CRS sent by the UE to send the sensing signal; a power, a period, a frequency point, and an occasion at which the UE sends the sensing signal.

[0191] Optionally, when the first sensing configuration information is included in the sensing related information, the target base station determines the sensing configuration information according to the sensing related information, including: the target base station determines that the first sensing configuration information is the sensing configuration information used by itself, that is, the target base station regards the first sensing configuration information as the sensing configuration information generated by itself, which means that the sensing configuration information used by the UE before and after the handover is unchanged, and the first sensing configuration information is used.

[0192] S203, the target base station sends the sensing configuration information to the source base station, the SF, or the UE.

[0193] After the target base station generates the sensing configuration information, the target base station sends the sensing configuration information to the UE through the source base station or the SF.

[0194] Optionally, the target base station also sends a sensing association ID to the source base station, the SF, or the UE, and the sensing association ID is used to identify the same sensing session or task. The target base station can carry the sensing configuration information and the sensing association ID in one message.

[0195] After the UE obtains the sensing configuration information, the UE sends the sensing signal according to the sensing configuration information, or receives and measures the sensing signal. Correspondingly, the target base station receives, measures, or sends the sensing signal according to the sensing configuration information.

[0196] If the target base station receives and measures the sensing signal, the target base station also needs to send the measured sensing measurement data to the SF. Correspondingly, the target base station needs to establish a sensing transmission channel or session with the SF, and the sensing transmission channel or the sensing session is used to transmit the sensing measurement data.

[0197] When the UE sends the sensing signal, and the target base station receives and measures the sensing signal in the sensing mode, when the UE is handed over from the source base station to the target base station, the sensing transmission channel or the sensing session is established between the source base station and the SF before the handover, but the target base station does not establish the sensing transmission channel or the sensing session with the SF, therefore, the target base station needs to establish the sensing transmission channel or the sensing session with the SF.

[0198] Optionally, the target base station establishes the sensing transmission channel or the sensing session with the SF according to the sensing association ID, address related information of the SF, a sensing related DNN, and / or a slice.

[0199] Optionally, the target base station carries the sensing correlation ID, the DNN and / or the slice, and the address related information of the SF when initiating the sensing session establishment to the SF. The address related information of the SF includes the IP address, the FQDN and / or the port number (tunnel number) of the SF.

[0200] Optionally, the sensing transmission channel or the sensing session is established by the target base station according to the sensing related information and the SF after sending the handover request confirmation message to the source base station, or is established by the target base station according to the sensing related information and the SF after receiving the handover confirmation message sent by the UE. This embodiment does not limit the timing of establishing the sensing transmission channel or the sensing session.

[0201] In the method of this embodiment, the target base station receives the sensing related information from the source base station or the SF during the communication handover process or the sensing handover process, determines the sensing configuration information according to the sensing related information, and sends the sensing configuration information to the source base station, the SF or the UE. The target base station generates the sensing configuration information according to the sensing related information, and sends the sensing configuration information to the UE, so that the UE and the target base station can perform sensing related operations based on the sensing configuration information, thereby ensuring the continuity of the sensing service after the UE is switched from the source base station to the target base station.

[0202] Embodiment Two

[0203] FIG. 6 is a flowchart of the method for processing the continuity of the sensing service provided by Embodiment Two of the present application. This embodiment describes the method from the perspective of the UE. As shown in FIG. 6, the method provided by this embodiment includes the following steps.

[0204] S301. When the UE is switched from the source base station to the target base station, the UE receives the sensing configuration information from the target base station or the SF.

[0205] The sensing configuration information is provided by the target base station. During the communication handover process or the sensing handover process, the target base station can send the sensing configuration information to the UE through the source base station or the SF.

[0206] The sensing configuration information is used to describe how the UE receives, measures or sends the sensing signal. For example, the sensing configuration information includes at least one of the following information:

[0207] The frequency domain resource information of the sending or receiving of the sensing signal;

[0208] The sending power of the sensing signal;

[0209] The sending period or receiving period of the sensing signal;

[0210] The sending frequency point or receiving frequency point of the sensing signal;

[0211] a transmission occasion or a reception occasion of the sensing signal.

[0212] Optionally, the sensing configuration information is carried in a handover command.

[0213] S302, the UE performs reception, measurement or transmission of the sensing signal according to the sensing configuration information.

[0214] In the first sensing mode, the target base station transmits the sensing signal according to the sensing configuration information, and the UE receives and measures the sensing signal according to the sensing configuration information.

[0215] In the second sensing mode, the UE transmits the sensing signal according to the sensing configuration information, the target base station receives and measures the sensing signal according to the sensing configuration information, and sends the sensing measurement data to the SF.

[0216] Optionally, the UE can start to perform reception, measurement or transmission of the sensing signal after receiving the sensing configuration information, or the UE starts to perform reception, measurement or transmission of the sensing signal after the handover is completed.

[0217] In the embodiment, in the communication handover process or the sensing handover process, the UE receives the sensing configuration information, and performs reception, measurement or transmission of the sensing signal according to the sensing configuration information, the sensing configuration information is generated by the target base station, and the target base station provides the sensing configuration information to the UE, so that the UE and the target base station can perform sensing related operations based on the sensing configuration information, thereby ensuring the continuity of the sensing service after the UE is switched from the source base station to the target base station.

[0218] Embodiment Three

[0219] FIG. 7 is a flowchart of a method for processing the continuity of the sensing service provided by the third embodiment of the present application, and the method is described from the perspective of the source base station. As shown in FIG. 7, the method provided by the embodiment includes the following steps.

[0220] S401, when the UE is switched from the source base station to the target base station, the source base station sends sensing related information to the target base station, or sends handover information to the SF or the AMF, the handover information being used to indicate that the UE is switched.

[0221] The source base station receives the communication measurement report sent by the UE, and determines to perform communication handover on the UE according to the communication measurement report and a communication handover decision condition, or the source base station receives the sensing measurement report sent by the UE, and determines to perform sensing handover on the UE according to the sensing measurement report and a sensing handover decision condition.

[0222] The communication measurement report and the communication handover decision condition are the same as the measurement report and the cell handover decision condition of a related communication system (for example, an NR system), and will not be described herein. It can be understood that the perception measurement report and the perception handover decision condition used by the perception handover are different from the communication measurement report and the communication handover decision condition.

[0223] In an implementation manner, after the source base station determines to hand over the UE to the target base station, the source base station sends the perception-related information to the target base station. Based on different handover manners, the source base station can directly send the perception-related information to the target base station, or can send the perception-related information to the target base station through the AMF. The content of the perception-related information is described with reference to the description of the foregoing embodiments, and will not be described herein.

[0224] In another implementation manner, after the source base station determines to hand over the UE to the target base station, the source base station sends the handover information to the SF or the AMF. The handover information is used to indicate that the UE is handed over.

[0225] Optionally, the handover information includes at least one of the following: a UE ID, a target base station ID, and a perception association ID.

[0226] The source base station sends the handover information to the AMF, so that the AMF sends the handover information to the SF. After the SF receives the handover information sent by the source base station or the AMF, the SF sends the perception-related information to the target base station according to the handover information.

[0227] S402, the source base station receives the perception configuration information from the target base station or the SF, and sends the perception configuration information to the UE.

[0228] The perception configuration information is generated by the target base station. When the source base station receives the perception configuration information from the SF, the perception configuration information of the SF is also generated by the target base station and sent to the SF.

[0229] The perception configuration information is used to describe how the UE receives, measures, or sends the perception signal. The specific content of the perception configuration information is described with reference to the foregoing embodiments, and will not be described herein.

[0230] This step is an optional step. After the SF receives the perception configuration information sent by the target base station, the SF can also directly send the perception configuration information to the UE through the direct interface between the SF and the UE, without the need of forwarding through the source base station.

[0231] In this embodiment, the source base station determines to send the awareness-related information to the target base station when the UE switches from the source base station to the target base station, to request the awareness configuration information from the target base station, or the source base station sends the handover information to the SF or the AMF, the handover information is used to indicate that the UE switches, and the SF requests the awareness configuration information from the target base station based on the handover information. The UE and the target base station can perform the awareness-related operation based on the awareness configuration information, so as to ensure the continuity of the awareness service after the UE switches from the source base station to the target base station.

[0232] Embodiment Four

[0233] FIG. 8 is a flowchart of a method for processing the continuity of the awareness service according to Embodiment Four of the present application. This embodiment describes the method from the perspective of the AMF. As shown in FIG. 8, the method provided by this embodiment includes the following steps.

[0234] S501. When the UE switches from the source base station to the target base station, the AMF sends the handover information to the SF, and the handover information is used to indicate that the UE switches.

[0235] In the N2 handover process, the communication between the source base station and the target base station is coordinated through the AMF. In this embodiment, the AMF sends the handover information to the SF in the following two ways:

[0236] In a first implementation, the AMF receives the handover request sent by the source base station, the handover request carries the handover information, and the AMF determines that the UE switches based on the handover information, and then sends the handover information to the SF.

[0237] Optionally, the handover information includes at least one of the following: the UE ID, the target base station ID, and the awareness association ID. The awareness association ID is used to indicate that the AMF source base station performs the awareness service, and is also used to indicate that the AMF notifies the SF that the handover occurs.

[0238] Optionally, the handover request further includes address-related information of the SF, which is used by the AMF to determine to which SF to send the handover information.

[0239] In a second implementation, the AMF receives the handover event subscription of the SF, the handover event subscription is used to indicate that the SF is notified when the UE switches, and the handover event subscription includes the awareness association ID and the UE ID. Correspondingly, when the AMF determines that the UE switches from the source base station to the target base station, the AMF notifies the SF that the UE switches based on the handover event subscription, and the AMF can also provide the awareness association ID and the UE ID to the SF during the handover event notification, so as to enable the SF to determine to obtain the awareness configuration information of which awareness service of the UE.

[0240] In this embodiment, the AMF sends the handover information to the SF when the UE switches from the source base station to the target base station, the handover information is used to indicate that the UE switches, and the SF requests the awareness configuration information from the target base station through the handover information. The UE and the target base station can perform the awareness-related operation based on the awareness configuration information, thereby ensuring the continuity of the awareness service after the UE switches from the source base station to the target base station.

[0241] Embodiment five

[0242] FIG. 9 is a flowchart of a method for processing the continuity of the awareness service according to an embodiment of the present application. The embodiment describes the method from the perspective of the SF. As shown in FIG. 9, the method provided by the embodiment includes the following steps.

[0243] S601. The SF receives the handover information sent by the source base station or the AMF, and the handover information is used to indicate that the UE switches.

[0244] Optionally, the handover information includes at least one of the UE ID, the target base station ID, and the awareness association ID.

[0245] S602. The SF requests the awareness configuration information from the target base station.

[0246] The SF determines the awareness configuration information of which awareness service of the UE to obtain according to the awareness association ID and the UE ID in the handover information.

[0247] Optionally, the SF generates the awareness-related information according to the handover information, and sends the awareness-related information to the target base station to obtain the awareness configuration information. The specific content of the awareness-related information and the awareness configuration information is described in the foregoing embodiments, which will not be described here.

[0248] Optionally, before sending the awareness-related information to the target base station, the SF determines whether the awareness service corresponding to the awareness association ID needs to maintain continuity. When the SF determines that the awareness service needs to maintain continuity, the SF sends the awareness-related information to the target base station.

[0249] Optionally, the SF can determine whether the awareness service needs to maintain continuity based on the service attribute. The service attribute includes which service needs to maintain continuity and which service does not need to maintain continuity.

[0250] Alternatively, the SF determines whether the awareness service needs to maintain continuity according to the continuous awareness capability of the awareness service. The continuous awareness capability defines the support capability of the awareness service for continuous awareness, and is mainly divided into single awareness and continuous awareness. When the continuous awareness capability of the awareness service is continuous awareness, it is determined that the continuity needs to be maintained.

[0251] Alternatively, the AF explicitly indicates in the awareness service request message sent to the SF that the awareness service needs to maintain continuity.

[0252] S603, the SF receives the sensing configuration information sent by the target base station, and sends the sensing configuration to the source base station, the AMF, or the UE.

[0253] The target base station generates the sensing configuration information according to the sensing related information sent by the SF, sends the sensing configuration information to the SF, and the SF sends the sensing configuration information to the source base station, the AMF, or the UE. After the SF sends the sensing configuration information to the source base station or the AMF, the source base station or the AMF sends the sensing configuration information to the UE.

[0254] Optionally, the SF also receives the sensing measurement data sent by the UE or the target base station, which is measured based on the sensing configuration information generated by the target base station.

[0255] In this embodiment, the SF receives the handover information sent by the source base station or the AMF, the handover information is used to indicate that the user equipment UE is handed over, and the SF requests the sensing configuration information from the target base station based on the handover information. The UE and the target base station can perform sensing related operations based on the sensing configuration information, so as to ensure the continuity of the sensing service after the UE is handed over from the source base station to the target base station.

[0256] Embodiment six

[0257] On the basis of the above-mentioned embodiments, this embodiment six provides a sensing service continuity processing method. This embodiment is used to describe the signaling interaction between devices in the Xn handover process. This embodiment takes the base station sending the sensing signal and the UE receiving and measuring the sensing signal as an example, the target base station generates the sensing configuration information and sends it to the source base station, and the source base station sends the sensing configuration information to the UE.

[0258] FIG. 10 is a signaling flowchart of the sensing service continuity processing method provided by this embodiment six. As shown in FIG. 10, the method provided by this embodiment includes the following steps.

[0259] S701, the UE sends a measurement report to the source base station.

[0260] The measurement report can be a measurement report of communication handover or a measurement report of sensing handover.

[0261] S702, the source base station sends a handover request to the target base station, and the handover request includes sensing related information.

[0262] The source base station determines to hand over the UE to the target base station according to the measurement report, and sends a handover request to the target base station, and the handover request includes sensing related information. Optionally, the sensing related information includes at least one of the following information:

[0263] (1) description information of the sensing service;

[0264] (2) A first indication, the first indication is used to indicate the target base station to generate or provide the sensing configuration information.

[0265] (3) Sensing capability information of the UE.

[0266] (4) Sensing authorization information of the UE.

[0267] (5) Sensing mode.

[0268] (6) Sensing method.

[0269] (7) Sensing QoS information.

[0270] S703. The target base station sends a handover request acknowledgement message to the source base station, and the handover request acknowledgement message includes the sensing configuration information.

[0271] The target base station receives the handover request sent by the source base station, determines or generates the sensing configuration information according to the sensing related information in the handover request, and sends the sensing configuration information to the source base station in a handover request acknowledgement message (handover request ACK).

[0272] The sensing configuration information is used to describe how the target base station transmits the sensing signal, or how the UE receives and measures the sensing signal transmitted by the target base station. Optionally, the sensing configuration information includes at least one of the following:

[0273] (a) Frequency domain resource information of the sensing signal transmitted by the target base station, for example, description of SSB, CSI, PRS, CRS of the sensing signal transmitted by the target base station.

[0274] (b) Power, period, frequency point and occasion of the sensing signal transmitted by the target base station.

[0275] S704. The source base station sends a handover command to the UE, and the handover command includes the sensing configuration information.

[0276] The source base station receives the handover request acknowledgement message sent by the target base station, and sends a handover command (handover Command) to the UE according to the handover request acknowledgement message.

[0277] S705. The UE performs sensing measurement according to the sensing configuration information.

[0278] The target base station transmits the sensing signal according to the sensing configuration information, and the UE receives and measures the sensing signal transmitted by the target base station according to the sensing configuration information, for example, the UE determines the position and time of the sensing signal measurement based on the frequency point, period and other information provided by the sensing configuration information.

[0279] S706, performing a subsequent handover procedure, including switching the awareness session from the source base station to the target base station.

[0280] The subsequent handover procedure involves the UE, the source base station, the target base station, and a plurality of core network devices, as shown in the figure.

[0281] S707, the UE sends awareness measurement data to the SF.

[0282] Optionally, the SF can analyze the awareness measurement data to obtain awareness service analysis results.

[0283] S708, the SF sends the awareness measurement data and / or the awareness service analysis results to the AF.

[0284] The SF sends the awareness measurement data and / or the awareness service analysis results to the AF through the NEF, and the awareness consumer device can obtain the awareness measurement data and / or the awareness service analysis results from the AF.

[0285] Embodiment seven

[0286] On the basis of the above-mentioned embodiments, embodiment seven of the present application provides a continuity processing method for awareness service, which is used to describe the signaling interaction between devices in the X2 handover procedure, and takes the base station sending awareness signals and the UE receiving and measuring the awareness signals as an example for description. In the N2 handover procedure, the source base station sends awareness related information to the target base station through the AMF.

[0287] FIG. 11 is a signaling flowchart of the continuity processing method for awareness service provided by embodiment seven of the present application, as shown in FIG. 11, the method provided by the embodiment includes the following steps.

[0288] S801, the UE sends a measurement report to the source base station.

[0289] S802, the source base station sends a handover requirement to the AMF, and the handover requirement includes awareness related information.

[0290] The source base station determines to hand over the UE to the target base station according to the measurement report, and sends a handover requirement to the AMF, and the handover requirement includes awareness related information. Optionally, the awareness related information includes at least one of the following information:

[0291] (1) description information of the awareness service;

[0292] (2) a first indication, the first indication is used to indicate the target base station to generate or provide awareness configuration information.

[0293] (3) awareness capability information of the UE.

[0294] (4) awareness authorization information of the UE.

[0295] (5) Sensing mode.

[0296] (6) Sensing method.

[0297] (7) Sensing QoS information.

[0298] S803, the AMF sends a handover request to the target base station, the handover request including sensing-related information.

[0299] S804, the target base station sends a handover request acknowledgement message to the AMF, the handover request acknowledgement message including sensing configuration information.

[0300] The target base station receives the handover request sent by the AMF, determines or generates the sensing configuration information according to the sensing-related information in the handover request, and sends the sensing configuration information to the AMF in the handover request ACK.

[0301] The sensing configuration information is used to describe how the target base station transmits sensing signals, or how the UE receives and measures the sensing signals transmitted by the target base station. Optionally, the sensing configuration information includes at least one of the following:

[0302] (a) Frequency domain resource information of the sensing signals transmitted by the target base station, such as descriptions of SSB, CSI, PRS, and CRS of the sensing signals transmitted by the target base station.

[0303] (b) Power, period, frequency, and occasion of the sensing signals transmitted by the target base station.

[0304] S805, the AMF sends a handover command to the source base station, the handover command including the sensing configuration information.

[0305] The AMF receives the handover request ACK sent by the target base station, and sends a handover command to the UE according to the handover request ACK, the handover command including the sensing configuration information.

[0306] S806, the source base station sends a handover command to the UE, the handover command including the sensing configuration information.

[0307] S807, the UE performs sensing measurement according to the sensing configuration information.

[0308] The target base station transmits sensing signals according to the sensing configuration information, and the UE receives and measures the sensing signals transmitted by the target base station.

[0309] S808, a subsequent handover process is performed, including switching the sensing session from the source base station to the target base station.

[0310] S809, the UE sends the sensing measurement data to the SF.

[0311] Optionally, the SF can analyze the sensing measurement data to obtain a sensing service analysis result.

[0312] S810, the SF sends the sensing measurement data and / or the sensing service analysis result to the AF.

[0313] The SF sends the sensing measurement data and / or the sensing service analysis result to the AF through the NEF, and the sensing consumer device can obtain the sensing measurement data and / or the sensing service analysis result from the AF.

[0314] Embodiment eight

[0315] On the basis of the above-mentioned embodiments, the present embodiment ten provides a continuity processing method of a sensing service, and the present embodiment is used to describe the signaling interaction between devices in the Xn handover process. The difference between the present embodiment and the embodiment eight is that in the present embodiment, the source base station informs the SF that the UE has been handed over, and the SF judges whether to perform sensing continuity, and if so, requests the target base station for sensing measurement configuration, and sends it to the UE through the source base station.

[0316] FIG. 12 is a signaling flowchart of a continuity processing method of a sensing service provided by the present embodiment eight. As shown in FIG. 12, the method provided by the present embodiment includes the following steps.

[0317] S901, the UE sends a measurement report to the source base station.

[0318] S902, the source base station sends a handover request to the target base station.

[0319] S903, the target base station sends a handover request acknowledgement message to the source base station.

[0320] The handover process of S901-S903 is the same as that of the related art, and will not be described here.

[0321] S904, the source base station sends handover information to the SF.

[0322] After the source base station determines that the UE is handed over to the target base station, the source base station sends the handover information to the SF, and the handover information includes at least one of the following: UE ID, target base station ID and sensing association ID.

[0323] S905, the SF sends a sensing service control message (sensing service control) to the target base station, and the sensing service control message includes sensing related information.

[0324] After receiving the handover information sent by the source base station, the SF determines which sensing service to process according to the sensing association ID, and judges whether the sensing service corresponding to the sensing association ID needs to maintain continuity. The specific judgment method is described in Embodiment 5, which will not be repeated here.

[0325] If the SF determines that the sensing service needs to maintain continuity, the SF sends a sensing service control to the target base station, and the sensing service control includes sensing-related information, which includes at least one of the following information:

[0326] (1) Description information of the sensing service.

[0327] (2) A first indication, which is used to instruct the target base station to generate or provide sensing configuration information.

[0328] (3) Sensing capability information of the UE.

[0329] (4) Sensing authorization information of the UE.

[0330] (5) Sensing mode.

[0331] (6) Sensing method.

[0332] (7) Sensing QoS information.

[0333] (8) Sensing association ID, which is used to identify the same sensing session or task.

[0334] (9) UE ID.

[0335] S906, the target base station sends a sensing service control response to the SF, and the sensing service control response includes sensing configuration information.

[0336] After receiving the sensing service control sent by the SF, the target base station generates sensing configuration information according to the sensing-related information carried in the sensing service control, and sends the sensing configuration information to the SF in the sensing service control response.

[0337] The sensing configuration information is used to describe how the target base station transmits sensing signals, or how the UE receives and measures the sensing signals transmitted by the target base station. Optionally, the sensing configuration information includes at least one of the following:

[0338] (a) The target base station sends the frequency domain resource information of the sensing signal, for example, the target base station sends the description of SSB, CSI, PRS, CRS of the sensing signal.

[0339] (b) The target base station sends the power, period, frequency point and occasion of the sensing signal.

[0340] Optionally, the sensing service control response further includes a sensing association ID, so as to facilitate the SF to identify which sensing service the sensing configuration information belongs to the UE.

[0341] S907, the SF sends a handover response to the source base station, and the handover response includes the sensing configuration information.

[0342] S908, the source base station sends a handover command to the UE, and the handover command includes the sensing configuration information.

[0343] S909, the UE performs sensing measurement according to the sensing configuration information.

[0344] In an implementation manner, after receiving the handover command, the UE can use the sensing configuration information to receive and measure the sensing signal sent by the target base station.

[0345] In another implementation manner, after sending a handover confirm message to the target base station, the UE receives and measures the sensing signal sent by the target base station according to the sensing configuration information.

[0346] S910, a subsequent handover process is performed, including switching the sensing session from the source base station to the target base station.

[0347] S911, the UE sends the sensing measurement data to the SF.

[0348] Optionally, the SF can analyze the sensing measurement data to obtain sensing service analysis results.

[0349] S912, the SF sends the sensing measurement data and / or the sensing service analysis results to the AF.

[0350] The SF sends the sensing measurement data and / or the sensing service analysis results to the AF through the NEF, and the sensing consumer device can obtain the sensing measurement data and / or the sensing service analysis results from the AF.

[0351] Optionally, in other embodiments, after the SF obtains the perception configuration information, the SF can send the perception configuration information to the UE directly through an interface between the SF and the UE, without the source base station. Correspondingly, S907 and S908 can be replaced by the following steps shown in FIG. 13:

[0352] S907a, the SF sends the perception assistance data to the UE, wherein the perception assistance data includes the perception configuration information.

[0353] S907b, the SF sends a handover response to the source base station.

[0354] S908', the source base station sends a handover command to the UE.

[0355] Embodiment Nine

[0356] Based on the above embodiments, the present embodiment nine provides a method for processing the continuity of the perception service. The present embodiment is used to describe the signaling interaction between devices in the X2 handover process. The difference between the present embodiment and the embodiment seven is that, in the present embodiment, the AMF notifies the SF that the UE has undergone the handover. The SF judges whether the perception continuity needs to be performed. If the perception continuity needs to be performed, the SF requests the perception measurement configuration from the target base station and sends the UE through the AMF and the source base station.

[0357] FIG. 14 is a signaling flowchart of the method for processing the continuity of the perception service provided by the present embodiment nine. As shown in FIG. 14, the method provided by the present embodiment includes the following steps.

[0358] S1001, the UE sends a measurement report to the source base station.

[0359] S1002, the source base station sends a handover requirement to the AMF.

[0360] Optionally, the handover requirement includes a perception indication. The perception indication is used to indicate that the AMF source base station performs the perception service and is used to indicate that the AMF notifies the SF that the handover has occurred. Optionally, the perception indication is a perception association ID.

[0361] Optionally, the handover requirement further includes the related address information of the SF, for example, the IP address and the FQDN of the SF, which are used for the AMF to determine the SF.

[0362] S1003, the AMF sends a handover request to the target base station.

[0363] S1004, the target base station sends a handover request acknowledgement message to the AMF.

[0364] The steps S1001-S1004 are the same as the related N2 handover, which will not be described here.

[0365] S1005. The AMF sends switching information to the SF.

[0366] The AMF sends the switching information to the SF according to the switching request confirmation message sent by the target base station after determining that the UE switches to the target base station.

[0367] In this embodiment, the AMF sends the switching information to the target base station in the following two ways:

[0368] In a first implementation, the switching requirement sent by the source base station in S1002 includes a sensing indication, and the AMF sends the switching information to the target base station according to the sensing indication.

[0369] In a second implementation, the AMF receives a switching event subscription of the SF, the switching event subscription is used to indicate that the SF is notified when the UE switches, and the switching event subscription includes the sensing association ID and the UE ID. Correspondingly, when the AMF determines that the UE switches from the source base station to the target base station, the AMF sends the switching information to the SF according to the switching event subscription to notify the SF that the UE switches.

[0370] S1006. The SF sends a sensing service control message to the target base station, and the sensing service control message includes sensing related information.

[0371] After receiving the switching information sent by the AMF, the SF determines which sensing service to process according to the sensing association ID, and judges whether the sensing service corresponding to the sensing association ID needs to maintain continuity. For details, refer to the description of Embodiment 5, which will not be repeated here.

[0372] If the SF determines that the sensing service needs to maintain continuity, the SF sends a sensing service control message to the target base station, and the sensing service control message includes sensing related information, which includes at least one of the following information:

[0373] (1) Description information of the sensing service.

[0374] (2) A first indication, the first indication is used to indicate the target base station to generate or provide sensing configuration information.

[0375] (3) Sensing capability information of the UE.

[0376] (4) Sensing authorization information of the UE.

[0377] (5) Sensing mode.

[0378] (6) Sensing method.

[0379] (7) Sensing QoS information.

[0380] (8) a perception association ID, which is used to identify the same perception session or task.

[0381] (9) address related information of the SF.

[0382] (10) perception related DNN and / or slice.

[0383] (11) UE ID.

[0384] S1007, the target base station sends a perception service control response to the SF, wherein the perception service control response comprises perception configuration information.

[0385] After receiving the perception service control message sent by the SF, the target base station generates the perception configuration information according to the perception related information carried in the perception service control message, and sends the perception configuration information to the SF in a perception service control response.

[0386] The perception configuration information is used to describe how the target base station transmits the perception signal, or how the UE receives and measures the perception signal transmitted by the target base station. Optionally, the perception configuration information comprises at least one of the following:

[0387] (a) frequency domain resource information of the perception signal transmitted by the target base station, for example, description of SSB, CSI, PRS, CRS of the perception signal transmitted by the target base station.

[0388] (b) power, period, frequency and occasion of the perception signal transmitted by the target base station.

[0389] Optionally, the perception service control response further comprises a perception association ID, so that the SF identifies which perception service the perception configuration information belongs to.

[0390] S1008, the SF sends a handover response to the AMF, wherein the handover response comprises the perception configuration information.

[0391] S1009, the AMF sends a handover command to the source base station, wherein the handover command comprises the perception configuration information.

[0392] S1010, the source base station sends a handover command to the UE, wherein the handover command comprises the perception configuration information.

[0393] S1011, the UE performs perception measurement according to the perception configuration information.

[0394] In an implementation manner, after receiving the handover request sent by the source base station, the UE can use the perception configuration information to receive and measure the perception signal transmitted by the target base station.

[0395] In another implementation, the UE receives and measures the sensing signal sent by the target base station according to the sensing configuration information after sending the handover confirm to the target base station.

[0396] S1012, the UE sends the sensing measurement data to the SF.

[0397] Optionally, the SF can analyze the sensing measurement data to obtain sensing service analysis results.

[0398] S1013, the SF sends the sensing measurement data and / or the sensing service analysis results to the AF.

[0399] The SF sends the sensing measurement data and / or the sensing service analysis results to the AF through the NEF, and the sensing consumer device can obtain the sensing measurement data and / or the sensing service analysis results from the AF.

[0400] Optionally, in another embodiment, after obtaining the sensing configuration information, the SF can directly send the sensing configuration information to the UE through the interface between the SF and the UE, without the source base station. Correspondingly, S1008-S1010 can be replaced by the following steps shown in FIG. 15:

[0401] S1008a, the SF sends the sensing assistance data to the UE, wherein the sensing assistance data includes the sensing configuration information.

[0402] S1008b, the SF sends the handover response to the AMF.

[0403] S1009', the AMF sends the handover command to the source base station.

[0404] S1010', the source base station sends the handover command to the UE.

[0405] Embodiment Ten

[0406] On the basis of the above-mentioned embodiments, the present embodiment ten provides a sensing service continuity processing method. The difference between the present embodiment and the above-mentioned embodiments is that, in the present embodiment, the source base station sends its own sensing configuration information to the target base station during the handover process, and the target base station performs the sending of the sensing signal according to the sensing configuration information provided by the source base station. Correspondingly, the UE does not need to adjust the receiving and processing of the sensing signal.

[0407] FIG. 16 is a signaling flowchart of the sensing service continuity processing method provided by the present embodiment ten. As shown in FIG. 16, the method provided by the present embodiment includes the following steps.

[0408] S1101, the UE sends the measurement report to the source base station.

[0409] S1102, the source base station sends a handover request to the target base station, the handover request including the perception configuration information of the source base station.

[0410] S1103, the target base station sends a handover request acknowledgement message to the source base station.

[0411] S1104, the source base station sends a handover command to the UE.

[0412] S1105, the target base station performs perception measurement according to the perception configuration information.

[0413] In this embodiment, the target base station does not generate new perception configuration information, and the target base station sends the perception signal using the perception configuration information of the source base station, so the UE does not need to adjust the reception processing of the perception signal, that is, the UE performs perception measurement using the perception configuration information of the source base station.

[0414] It should be noted that the target base station can start sending the perception signal after receiving the perception configuration information sent by the source base station, and correspondingly, the UE receives the perception signal and measures.

[0415] S1106, a subsequent handover process is performed, including switching the perception session from the source base station to the target base station.

[0416] S1107, the UE sends the perception measurement data to the SF.

[0417] Optionally, the SF can analyze the perception measurement data to obtain perception service analysis results.

[0418] S1108, the SF sends the perception measurement data and / or the perception service analysis results to the AF.

[0419] The SF sends the perception measurement data and / or the perception service analysis results to the AF through the NEF, and the perception consumer device can obtain the perception measurement data and / or the perception service analysis results from the AF.

[0420] Embodiment eleven

[0421] On the basis of the above-mentioned embodiments, the present embodiment eleven provides a continuity processing method of a perception service, which is used to describe the signaling interaction between devices in the Xn handover process. In this embodiment, the UE sends the perception signal, and the base station receives and measures the perception signal. The target base station generates the perception configuration information according to the perception-related information sent by the source base station, and sends it to the source base station. The source base station sends the perception configuration information to the UE, and the UE performs the sending of the perception signal according to the perception configuration information.

[0422] FIG. 17 is a signaling flowchart of the continuity processing method of the perception service provided by the present embodiment eleven. As shown in FIG. 17, the method provided by the present embodiment includes the following steps.

[0423] S1201, the UE sends a measurement report to the source base station.

[0424] S1202, the source base station sends a handover request to the target base station, and the handover request includes sensing-related information.

[0425] Optionally, the sensing-related information includes at least one of the following information:

[0426] (1) description information of the sensing service.

[0427] (2) a first indication, the first indication is used to indicate the target base station to generate or provide sensing configuration information.

[0428] (3) sensing capability information of the UE.

[0429] (4) sensing authorization information of the UE.

[0430] (5) sensing mode.

[0431] (6) sensing method.

[0432] (7) sensing QoS information.

[0433] (8) sensing association ID, which is used to identify the same sensing session or task.

[0434] (9) address-related information of the SF, including but not limited to: IP address of the SF, FQDN and port number of the SF.

[0435] (10) sensing-related DNN and / or slice.

[0436] (11) UE ID.

[0437] S1203a, the target base station sends a handover request confirmation message (handover request ACK) to the source base station, and the handover request confirmation message includes sensing configuration information.

[0438] The target base station determines the sensing configuration information provided for the UE according to the sensing-related information sent by the source base station, and sends the sensing configuration information to the source base station in the handover request confirmation message.

[0439] The sensing configuration information is used to describe how the UE transmits the sensing signal, or how the target base station receives and measures the sensing signal transmitted by the UE. Optionally, the sensing configuration information includes at least one of the following:

[0440] (a) frequency domain resource information of the UE transmitting the sensing signal, such as description of SSB, CSI, PRS, CRS of the target base station transmitting the sensing signal.

[0441] (b) the power, period, frequency point and occasion of the sensing signal sent by the UE.

[0442] S1203b, the target base station establishes a sensing transmission channel with the SF.

[0443] This step is an optional step. If the target base station does not establish a sensing transmission channel in this step, the sensing transmission channel is established after step S1206.

[0444] After obtaining the sensing-related information, the target base station can establish a sensing transmission channel with the SF according to the sensing association ID, the address-related information of the SF, the DNN and / or slice related to sensing, and the SF confirms that the sensing transmission channel established by the target base station is associated with the same sensing task based on the sensing association ID.

[0445] S1204, the source base station sends a handover command to the UE, and the handover command includes sensing configuration information.

[0446] S1205, the target base station performs sensing measurement according to the sensing configuration information.

[0447] The UE sends a sensing signal according to the sensing configuration information, such as sending a sensing signal based on the frequency point, period and other information provided by the target base station, and the target base station receives and measures the sensing signal sent by the UE according to the sensing configuration information.

[0448] S1206, the UE sends a handover confirmation message (handover confirm) to the target base station.

[0449] Optionally, the target base station can establish a sensing transmission channel with the SF according to the sensing association ID, the address-related information of the SF, the DNN and / or slice related to sensing after receiving the handover confirmation message sent by the UE, and the SF confirms that the sensing transmission channel established by the target base station is associated with the same sensing task based on the sensing association ID.

[0450] S1207, the target base station reports sensing measurement data to the SF through the sensing transmission channel.

[0451] The target base station can directly report the sensing measurement data to the SF through the user plane, or report the sensing measurement data to the SF through the control plane (i.e. through the AMF). Specifically, the target base station sends the sensing measurement data to the AMF, carrying the sensing association ID, the SF IP and / or port number, and the AMF sends the sensing measurement data of the target base station to the SF based on the sensing association ID, the SF IP and / or port number.

[0452] Optionally, the SF can analyze the sensing measurement data to obtain sensing service analysis results.

[0453] S1208. The SF sends the perception measurement data and / or the perception service analysis result to the AF.

[0454] The SF sends the perception measurement data and / or the perception service analysis result to the AF through the NEF, and the perception consumer device can obtain the perception measurement data and / or the perception service analysis result from the AF.

[0455] Embodiment Twelve

[0456] On the basis of the above-mentioned embodiments, the embodiment twelve of the present application provides a continuity processing method of a perception service. The embodiment is used to describe the signaling interaction between devices in the N2 handover process. The embodiment takes the UE sending a perception signal and the base station receiving and measuring the perception signal as an example. The target base station generates perception configuration information according to the perception-related information sent by the source base station, and sends the perception configuration information to the source base station through the AMF. The source base station sends the perception configuration information to the UE. The UE performs the sending of the perception signal according to the perception configuration information.

[0457] FIG. 18 is a signaling flowchart of the continuity processing method of the perception service provided by the embodiment twelve of the present application. As shown in FIG. 18, the method provided by the embodiment includes the following steps.

[0458] S1301. The UE sends a measurement report to the source base station.

[0459] S1302. The source base station sends a handover requirement to the AMF. The handover requirement includes perception-related information.

[0460] Optionally, the perception-related information includes at least one of the following information:

[0461] (1) Description information of the perception service.

[0462] (2) A first indication. The first indication is used to indicate that the target base station generates or provides perception configuration information.

[0463] (3) Perception capability information of the UE.

[0464] (4) Perception authorization information of the UE.

[0465] (5) A perception mode.

[0466] (6) A perception method.

[0467] (7) Perception QoS information.

[0468] (8) A perception association ID. The perception association ID is used to identify the same perception session or task.

[0469] (9) Address related information of the SF, including but not limited to: IP address of the SF, FQDN and port number of the SF.

[0470] (10) DNN and / or slice related to sensing.

[0471] (11) UE ID.

[0472] S1303, the AMF sends a handover request to the target base station, and the handover request includes sensing related information.

[0473] The AMF carries the sensing related information sent by the source base station in the handover request and sends it to the target base station.

[0474] S1304a, the target base station sends a handover request ACK to the AMF, and the handover request ACK includes sensing configuration information.

[0475] The target base station generates sensing configuration information for the UE according to the sensing related information sent by the source base station, and carries the sensing configuration information in the handover request ACK and sends it to the AMF.

[0476] The sensing configuration information is used to describe how the UE transmits the sensing signal, or how the target base station receives and measures the sensing signal transmitted by the UE. Optionally, the sensing configuration information includes at least one of the following:

[0477] (a) Frequency domain resource information of the sensing signal transmitted by the UE, such as description of SSB, CSI, PRS, CRS of the sensing signal transmitted by the target base station.

[0478] (b) Power, period, frequency and occasion of the sensing signal transmitted by the UE.

[0479] S1304b, the target base station establishes a sensing transmission channel with the SF.

[0480] This step is an optional step. If the target base station does not establish a sensing transmission channel in this step, a sensing transmission channel is established in step S1308.

[0481] The target base station can establish a sensing transmission channel with the SF according to the sensing association ID, the address related information of the SF, the DNN and / or slice related to sensing after obtaining the sensing related information. The SF confirms that the sensing transmission channel established by the target base station is associated with the same sensing task based on the sensing association ID.

[0482] S1305, the AMF sends a handover command to the source base station, and the handover command includes sensing configuration information.

[0483] S1306, the source base station sends a handover command to the UE, and the handover command includes the sensing configuration information.

[0484] S1307, the target base station performs sensing measurement according to the sensing configuration information.

[0485] The UE sends a sensing signal according to the sensing configuration information, such as sending a sensing signal based on the frequency point, period, and other information provided by the target base station, and the target base station receives and measures the sensing signal sent by the UE according to the sensing configuration information.

[0486] S1308, a subsequent handover process is performed, including switching the sensing session from the source base station to the target base station.

[0487] Optionally, the target base station can establish a sensing transmission channel with the SF according to the sensing association ID, the address related information of the SF, and the sensing related DNN and / or slice after receiving the handover confirmation message sent by the UE, and the SF confirms that the sensing transmission channel established by the target base station is associated with the same sensing task based on the sensing association ID.

[0488] S1309, the target base station reports the sensing measurement data to the SF through the sensing transmission channel.

[0489] The target base station can directly report the sensing measurement data to the SF through the user plane, or report the sensing measurement data to the SF through the control plane (i.e. through the AMF). Specifically, the target base station sends the sensing measurement data to the AMF, carrying the sensing association ID, the SF IP and / or port number, and the AMF sends the sensing measurement data of the target base station to the SF based on the sensing association ID, the SF IP and / or port number.

[0490] Optionally, the SF can analyze the sensing measurement data to obtain sensing service analysis results.

[0491] S1310, the SF sends the sensing measurement data and / or the sensing service analysis results to the AF.

[0492] The SF sends the sensing measurement data and / or the sensing service analysis results to the AF through the NEF, and the sensing consumer device can obtain the sensing measurement data and / or the sensing service analysis results from the AF.

[0493] Embodiment thirteen

[0494] On the basis of the above-mentioned embodiments, the embodiment thirteen of the present application provides a method for processing continuity of sensing service, the embodiment is used for describing signaling interaction between devices in Xn handover process, the embodiment takes the UE sending sensing signals and the base station receiving and measuring the sensing signals as examples, and the embodiment is different from the embodiment eleven in that: in the Xn handover process, the source base station informs the SF that the UE has been handed over, the SF judges that the continuity of the sensing service needs to be kept, then requests the sensing configuration information of the UE from the target base station, and sends the sensing configuration information to the UE through the source base station, and the UE executes the sending of the sensing signals according to the sensing configuration information.

[0495] FIG. 19 is a signaling flow chart of the method for processing continuity of sensing service provided by the embodiment thirteen of the present application, as shown in FIG. 19, the method provided by the embodiment includes the following steps.

[0496] S1401, the UE sends a measurement report to the source base station.

[0497] S1402, the source base station sends a handover request to the target base station.

[0498] S1403, the target base station sends a handover request acknowledgement message to the source base station.

[0499] S1404, the source base station sends handover information to the SF.

[0500] Optionally, the handover information includes at least one of the following: UE ID, target base station ID and sensing association ID.

[0501] S1405, the SF sends a sensing service control message to the target base station, and the sensing service control message includes sensing related information.

[0502] After receiving the handover information, the SF confirms the sensing service of the UE according to the sensing association ID in the handover information, judges whether the continuity of the sensing service needs to be kept, if the SF determines that the continuity of the sensing service needs to be kept, generates the sensing related information, and sends the sensing related information to the target base station in the sensing service control message.

[0503] Optionally, the sensing related information includes at least one of the following information:

[0504] (1) description information of the sensing service.

[0505] (2) a first indication, the first indication is used for indicating the target base station to generate or provide sensing configuration information.

[0506] (3) sensing capability information of the UE.

[0507] (4) sensing authorization information of the UE.

[0508] (5) sensing mode.

[0509] (6) Sensing method.

[0510] (7) Sensing QoS information.

[0511] (8) Sensing association ID, which is used to identify the same sensing session or task.

[0512] (9) Address related information of SF, including but not limited to: IP address of SF, FQDN and port number of SF.

[0513] (10) Sensing related DNN and / or slice.

[0514] (11) UE ID.

[0515] S1406a, the target base station sends a sensing service control response message to the SF, and the sensing service control response message includes sensing configuration information.

[0516] The target base station generates sensing configuration information for the UE according to the sensing related information in the sensing service control message, and sends the sensing configuration information to the SF in the sensing service control response message.

[0517] The sensing configuration information is used to describe how the UE transmits the sensing signal, or how the target base station receives and measures the sensing signal transmitted by the UE. Optionally, the sensing configuration information includes at least one of the following:

[0518] (a) Frequency domain resource information of the UE transmitting the sensing signal, such as description of SSB, CSI, PRS, and CRS of the target base station transmitting the sensing signal.

[0519] (b) Power, period, frequency point and occasion of the UE transmitting the sensing signal.

[0520] S1406b, the target base station establishes a sensing transmission channel with the SF.

[0521] This step is an optional step. If the target base station does not establish a sensing transmission channel in this step, a sensing transmission channel is established in step S1410.

[0522] The target base station can establish a sensing transmission channel with the SF according to the sensing association ID, the address related information of the SF, the sensing related DNN and / or slice after obtaining the sensing related information. The SF associates the sensing transmission channel established by the target base station to the same sensing task based on the sensing association ID.

[0523] S1407, the SF sends a sensing response (handover response) to the source base station, and the sensing response includes sensing configuration information.

[0524] S1408, the source base station sends a handover command to the UE, and the handover command includes the sensing configuration information.

[0525] S1409, the target base station performs sensing measurement according to the sensing configuration information.

[0526] Specifically, the UE sends a sensing signal according to the sensing configuration information, such as sending a sensing signal based on the frequency point, period, and other information provided by the target base station. The target base station receives and measures the sensing signal according to the sensing configuration information.

[0527] S1410, a subsequent handover process is performed, including switching the sensing session from the source base station to the target base station.

[0528] Optionally, the target base station can establish a sensing transmission channel with the SF based on the sensing association ID, the address related information of the SF, and the sensing related DNN and / or slice after receiving the handover confirmation message sent by the UE. The SF confirms that the sensing transmission channel established by the target base station is associated with the same sensing task based on the sensing association ID.

[0529] S1411, the target base station reports the sensing measurement data to the SF through the sensing transmission channel.

[0530] The target base station can directly report the sensing measurement data to the SF through the user plane, or report the sensing measurement data to the SF through the control plane (i.e. through the AMF). Specifically, the target base station sends the sensing measurement data to the AMF, carrying the sensing association ID, the SF IP and / or port number, and the AMF sends the sensing measurement data of the target base station to the SF based on the sensing association ID, the SF IP and / or port number.

[0531] Optionally, the SF can analyze the sensing measurement data to obtain sensing service analysis results.

[0532] S1412, the SF sends the sensing measurement data and / or the sensing service analysis results to the AF.

[0533] The SF sends the sensing measurement data and / or the sensing service analysis results to the AF through the NEF, and the sensing consumer device can obtain the sensing measurement data and / or the sensing service analysis results from the AF.

[0534] Optionally, in another embodiment, after the SF obtains the sensing configuration information, it can be directly sent to the UE through the interface between the SF and the UE, without going through the source base station. Correspondingly, S1407 and S1408 can be replaced by the following steps shown in FIG. 20:

[0535] S1407a, the SF sends the perception assistance data to the UE, wherein the perception assistance data comprises the perception configuration information.

[0536] S1407b, the SF sends the handover response to the source base station.

[0537] S1408', the source base station sends the handover command to the UE.

[0538] Embodiment fourteen

[0539] On the basis of the above-mentioned embodiments, the embodiment fourteen of the present application provides a method for processing the continuity of the perception service, and the embodiment is used to describe the signaling interaction between the devices in the N2 handover process. The embodiment takes the UE sending the perception signal and the base station receiving and measuring the perception signal as an example. The difference between the embodiment and the embodiment twelve is that in the N2 handover process, the AMF notifies the SF that the UE has been handed over. The SF judges that the continuity of the perception service needs to be kept. Then, the SF requests the perception configuration information of the UE from the target base station. The SF sends the perception configuration information to the UE through the AMF and the source base station. The UE executes the sending of the perception signal according to the perception configuration information.

[0540] FIG. 21 is a signaling flowchart of the method for processing the continuity of the perception service provided by the embodiment fourteen of the present application. As shown in FIG. 21, the method provided by the embodiment includes the following steps.

[0541] S1501, the UE sends the measurement report to the source base station.

[0542] S1502, the source base station sends the handover demand to the AMF.

[0543] Optionally, the handover demand comprises the perception indication. The perception indication is used to indicate that the AMF source base station executes the perception service. The perception indication is also used to indicate that the AMF notifies the SF that the handover has occurred. Optionally, the perception indication is the perception association ID.

[0544] S1503, the AMF sends the handover request to the target base station.

[0545] S1504, the target base station sends the handover request confirmation message to the AMF.

[0546] S1505, the AMF sends the handover information to the SF.

[0547] The handover information is used to indicate that the SF UE has been handed over. Optionally, the handover information comprises at least one of the following: the UE ID, the target base station ID and the perception association ID.

[0548] If the awareness indication is included in the handover requirement at S1502, the AMF determines to send the handover information to the SF according to the awareness indication. If the awareness indication is not included in the handover requirement at S1502, the AMF can determine to send the handover information to the SF according to the handover event subscription of the SF.

[0549] S1506, the SF sends an awareness service control message to the target base station, and the awareness service control message includes the awareness related information.

[0550] The SF determines that the UE has performed handover according to the handover information, and the awareness service of the UE needs to maintain continuity, generates the awareness related information, and sends the awareness related information to the target base station in the awareness service control message to request the awareness configuration information of the awareness service from the target base station. Optionally, the awareness related information includes at least one of the following information:

[0551] (1) description information of the awareness service.

[0552] (2) a first indication, the first indication is used to indicate the target base station to generate or provide the awareness configuration information.

[0553] (3) awareness capability information of the UE.

[0554] (4) awareness authorization information of the UE.

[0555] (5) awareness mode.

[0556] (6) awareness method.

[0557] (7) awareness QoS information.

[0558] (8) awareness association ID, which is used to identify the same awareness session or task.

[0559] (9) address related information of the SF, including but not limited to: IP address, FQDN and port number of the SF.

[0560] (10) awareness related DNN and / or slice.

[0561] (11) UE ID.

[0562] S1507a, the target base station sends an awareness service control response to the SF, and the awareness service control response includes the awareness configuration information.

[0563] The target base station generates the awareness configuration information for the UE according to the awareness related information sent by the SF, and sends the awareness configuration information to the SF in the awareness service control response.

[0564] The perception configuration information is used to describe how the UE transmits the perception signal, or how the target base station receives and measures the perception signal transmitted by the UE. Optionally, the perception configuration information includes at least one of the following:

[0565] (a) Frequency domain resource information of the UE transmitting the perception signal, for example, description of SSB, CSI, PRS, and CRS of the target base station transmitting the perception signal.

[0566] (b) Power, period, frequency, and occasion of the UE transmitting the perception signal.

[0567] S1507b, the target base station establishes a perception transmission channel with the SF.

[0568] This step is an optional step. If the target base station does not establish a perception transmission channel in this step, a perception transmission channel is established in step S1512.

[0569] The target base station can establish a perception transmission channel with the SF based on the perception association ID, address-related information of the SF, and perception-related DNN and / or slice after obtaining the perception-related information. The SF confirms that the perception transmission channel established by the target base station is associated with the same perception task based on the perception association ID.

[0570] S1508, the SF sends a handover response to the AMF, and the handover response includes the perception configuration information.

[0571] S1509, the AMF sends a handover command to the source base station, and the handover command includes the perception configuration information.

[0572] S1510, the source base station sends a handover command to the UE, and the handover command includes the perception configuration information.

[0573] S1511, the target base station performs perception measurement according to the perception configuration information.

[0574] Specifically, the UE transmits the perception signal according to the perception configuration information, such as transmitting the perception signal based on the frequency, period, etc. information provided by the target base station. The target base station receives and measures the perception signal according to the perception configuration information.

[0575] S1512, perform subsequent handover process, including switching the perception session from the source base station to the target base station.

[0576] Optionally, the target base station can establish a perception transmission channel with the SF based on the perception association ID, address-related information of the SF, and perception-related DNN and / or slice after receiving the handover confirmation message (handover confirm) sent by the UE. The SF confirms that the perception transmission channel established by the target base station is associated with the same perception task based on the perception association ID.

[0577] S1513, the target base station reports the sensing measurement data to the SF through the sensing channel.

[0578] The target base station can directly report the sensing measurement data to the SF through the user plane, or report the sensing measurement data to the SF through the control plane (i.e., through the AMF). Specifically, the target base station sends the sensing measurement data to the AMF, carries the sensing association ID, the SF IP and / or the port number, the AMF sends the sensing measurement data of the target base station to the SF based on the sensing association ID, the SF IP and / or the port number.

[0579] Optionally, the SF can analyze the sensing measurement data to obtain a sensing service analysis result.

[0580] S1514, the SF sends the sensing measurement data and / or the sensing service analysis result to the AF.

[0581] The SF sends the sensing measurement data and / or the sensing service analysis result to the AF through the NEF, and the sensing consumer device can obtain the sensing measurement data and / or the sensing service analysis result from the AF.

[0582] Optionally, in another embodiment, after the SF obtains the sensing configuration information, the SF can directly send the sensing configuration information to the UE through the interface between the SF and the UE, without the source base station. Correspondingly, S1508 to S1510 can be replaced by the following steps shown in FIG. 22:

[0583] S1508a, the SF sends the sensing assistance data to the UE, and the sensing assistance data includes the sensing configuration information.

[0584] S1508b, the SF sends the handover response to the AMF.

[0585] S1509', the AMF sends the handover command to the source base station.

[0586] S1510', the source base station sends the handover command to the UE.

[0587] Embodiment fifteen

[0588] On the basis of the above-mentioned embodiments, the fifteenth embodiment of the present application provides a sensing service continuity processing method. The difference between the present embodiment and the above-mentioned embodiments is that in the present embodiment, the source base station sends its own sensing configuration information to the target base station during the handover process, and the target base station performs the reception and measurement of the sensing signal according to the sensing configuration information provided by the source base station. Correspondingly, the UE does not need to adjust the sending process of the sensing signal.

[0589] FIG. 23 is a signaling flowchart of a method for processing continuity of a sensing service according to an embodiment of the present application. As shown in FIG. 23, the method according to the embodiment includes the following steps.

[0590] S1601. The UE sends a measurement report to the source base station.

[0591] S1602. The source base station sends a handover request to the target base station, and the handover request includes the sensing configuration information of the source base station.

[0592] S1603a. The target base station sends a handover request acknowledgement message to the source base station.

[0593] S1603b. The target base station establishes a sensing transmission channel with the SF.

[0594] This step is an optional step. If the target base station does not establish the sensing transmission channel in this step, the sensing transmission channel is established after step S1606.

[0595] The target base station can establish the sensing transmission channel with the SF according to the sensing association ID, the address-related information of the SF, and the DNN and / or slice related to sensing. The SF confirms that the sensing transmission channel established by the target base station is associated to the same sensing task based on the sensing association ID.

[0596] S1604. The source base station sends a handover command to the UE.

[0597] S1605. The target base station performs sensing measurement according to the sensing configuration information of the source base station.

[0598] The source base station sends its own sensing configuration information to the target base station. The target base station takes the sensing configuration information of the source base station as its own sensing configuration information, and performs reception and measurement of sensing signals. Correspondingly, the UE sends sensing signals according to the sensing configuration information.

[0599] S1606. The UE sends a handover acknowledgement message to the target base station.

[0600] Optionally, the target base station can also establish the sensing transmission channel with the SF after receiving the handover acknowledgement message sent by the UE. The target base station can establish the sensing transmission channel with the SF according to the sensing association ID, the address-related information of the SF, and the DNN and / or slice related to sensing. The SF confirms that the sensing transmission channel established by the target base station is associated to the same sensing task based on the sensing association ID.

[0601] S1607. The target base station sends sensing measurement data to the SF.

[0602] The target base station can directly report the perception measurement data to the SF through a user plane, or report the perception measurement data to the SF through a control plane (i.e., through the AMF). Specifically, the target base station sends the perception measurement data to the AMF, carries the perception association ID, the SF IP and / or the port number, the AMF sends the perception measurement data of the target base station to the SF based on the perception association ID, the SF IP and / or the port number.

[0603] Optionally, the SF can analyze the perception measurement data to obtain a perception service analysis result.

[0604] S1608. The SF sends the perception measurement data and / or the perception service analysis result to the AF.

[0605] The SF sends the perception measurement data and / or the perception service analysis result to the AF through the NEF, and the perception consumer device can obtain the perception measurement data and / or the perception service analysis result from the AF.

[0606] The embodiment of the present application provides a perception service continuity processing method, and an execution subject can be a perception service continuity processing apparatus. In the embodiment of the present application, the perception service continuity processing method executed by the perception service continuity processing apparatus is taken as an example to illustrate the perception service continuity processing apparatus provided by the embodiment of the present application.

[0607] The embodiment of the present application provides a perception service continuity processing apparatus. As an example, the perception service continuity processing apparatus can be a communication device or a component in the communication device, for example, a chip. The communication device can be a UE, a target base station, a source base station, an AMF or an SF, etc. For example, the UE can include but is not limited to the types of UEs listed above, and the embodiment of the present application is not limited specifically.

[0608] The continuity processing apparatus of the sensing service comprises a receiving module, a sending module and a processing module. The receiving module, the sending module and the processing module can be implemented by software or by hardware. When implemented by hardware, the processing module can be implemented by a processor, which can include a general-purpose processor, a special-purpose processor, etc., such as a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), an artificial intelligent (AI) processor, a graphics processing unit (GPU), an application specific integrated circuit (ASIC), a network processor (NP), a field programmable gate array (FPGA) or other programmable logic devices, a gate circuit, a transistor, a discrete hardware component, etc. The receiving module and the sending module can be implemented by a communication interface, which can include one or more of a transceiver, a pin, a circuit, a bus, a radio frequency unit, etc.

[0609] Embodiment sixteen

[0610] Specifically, referring to FIG. 24, when the continuity processing apparatus of the sensing service is a target base station or a component in the target base station, the continuity processing apparatus of the sensing service 1600 comprises a receiving module 1601 configured to receive sensing-related information from a source base station or a sensing function (SF) when a user equipment (UE) is handed over from the source base station to the target base station; a processing module 1602 configured to determine sensing configuration information according to the sensing-related information; and a sending module 1603 configured to send the sensing configuration information to the source base station, the SF or the UE.

[0611] In some implementations, the sensing configuration information is used to describe how the UE receives, measures or sends a sensing signal.

[0612] In some implementations, the sensing configuration information comprises at least one of the following information:

[0613] frequency domain resource information of sending or receiving of the sensing signal;

[0614] sending power of the sensing signal;

[0615] sending period or receiving period of the sensing signal;

[0616] sending frequency point or receiving frequency point of the sensing signal;

[0617] A transmission occasion or a reception occasion of the sensing signal.

[0618] In some implementations, the receiving module 1601 is specifically configured to: receive, by the target base station, sensing-related information from a source base station or a SF during a communication switching process or a sensing switching process.

[0619] In some implementations, the processing module 1602 is further configured to: receive, measure, or transmit a sensing signal according to the sensing configuration information.

[0620] In some implementations, the sensing-related information includes at least one of:

[0621] description information of a sensing service;

[0622] a first indication, the first indication being used to indicate that the target base station generates sensing configuration information;

[0623] sensing capability information of a UE;

[0624] sensing authorization information of a UE;

[0625] a sensing mode, including a mode in which a base station transmits a sensing signal and a UE receives and measures the sensing signal, or a mode in which a UE transmits a sensing signal and a base station receives and measures the sensing signal;

[0626] a sensing method;

[0627] sensing QoS information;

[0628] a sensing association ID, the sensing association ID being used to identify a same sensing session or task.

[0629] address-related information of a SF;

[0630] a sensing-related data network name (DNN) and / or slice;

[0631] a UE ID;

[0632] first sensing configuration information.

[0633] In some implementations, when the first sensing configuration information is included in the sensing-related information, the processing module 1602 is specifically configured to: determine the first sensing configuration information as the sensing configuration information.

[0634] In some implementations, the sending module 1603 is specifically configured to: send, to the source base station, the SF, or the UE, the sensing configuration information and a sensing association ID, the sensing association ID being used to identify a same sensing session or task.

[0635] In some implementations, when the awareness mode is to send an awareness signal for the UE, the processing module 1602 is further configured to: establish an awareness transmission channel or session with the SF when the target base station receives and measures the awareness signal.

[0636] In some implementations, the processing module 1602 is specifically configured to: establish an awareness transmission channel or session with the SF according to the awareness association ID, address-related information of the SF, an awareness-related DNN and / or slice.

[0637] The awareness service continuity processing apparatus 1600 provided by the embodiments can implement each process performed by the target base station in the methods of embodiments one to fifteen and achieve the same technical effects. To avoid repetition, details are not described here.

[0638] Embodiment seventeen

[0639] Specifically, referring to FIG. 25, when the awareness service continuity processing apparatus is a UE or a component in the UE, the awareness service continuity processing apparatus 1700 includes a receiving module 1701 configured to receive awareness configuration information from a target base station or an awareness function (SF) when the UE switches from a source base station to the target base station; and a processing module 1702 configured to perform receiving, measuring or sending of an awareness signal according to the awareness configuration information.

[0640] In some implementations, the awareness configuration information is used to describe how the UE receives, measures or sends the awareness signal.

[0641] In some implementations, the awareness configuration information includes at least one of the following information:

[0642] frequency domain resource information of sending or receiving of the awareness signal;

[0643] sending power of the awareness signal;

[0644] sending period or receiving period of the awareness signal;

[0645] sending frequency point or receiving frequency point of the awareness signal;

[0646] sending time or receiving time of the awareness signal.

[0647] In some implementations, the awareness configuration information is carried in a handover command.

[0648] The awareness service continuity processing apparatus 1700 provided by the embodiments can implement each process performed by the UE in the methods of embodiments one to fifteen and achieve the same technical effects. To avoid repetition, details are not described here.

[0649] Embodiment eighteen

[0650] Specifically, referring to FIG. 26, when the continuity handling device for sensing service is a source base station or a component in the source base station, the continuity handling device for sensing service 1800 includes a sending module 1801 configured to send sensing-related information to a target base station when a UE switches from the source base station to the target base station, or send switching information to a sensing function SF or an AMF, the switching information being used to indicate that the UE switches.

[0651] In some implementations, the sensing-related information includes at least one of the following:

[0652] description information of a sensing service;

[0653] a first indication, the first indication being used to indicate that the target base station generates sensing configuration information;

[0654] sensing capability information of the UE;

[0655] sensing authorization information of the UE;

[0656] a sensing mode, including a mode in which a base station sends a sensing signal and a UE receives and measures the sensing signal, or a mode in which the UE sends a sensing signal and the base station receives and measures the sensing signal;

[0657] a sensing method;

[0658] sensing QoS information;

[0659] a sensing association ID, the sensing association ID being used to identify a same sensing session or task.

[0660] address-related information of the sensing function SF;

[0661] a sensing-related data network name DNN and / or slice;

[0662] a UE ID;

[0663] the first sensing configuration information.

[0664] In some implementations, the switching information includes at least one of the following:

[0665] a UE ID;

[0666] a target base station ID;

[0667] a sensing association ID.

[0668] In some implementations, the apparatus 1000 further includes a receiving module 1802 configured to receive, from the target base station or the SF, sensing configuration information; and the sending module 1801 is further configured to send the sensing configuration information to the UE.

[0669] The sensing service continuity processing apparatus 1800 provided by the embodiments of the present application can implement each process performed by the source base station in the methods of embodiments one to fifteen and achieve the same technical effects. To avoid repetition, details are not described herein.

[0670] Embodiment nineteen

[0671] Specifically, referring to FIG. 27, when the sensing service continuity processing apparatus is an AMF or a component in the AMF, the sensing service continuity processing apparatus 1900 includes a sending module 1901 configured to send, to a sensing function SF, handover information when a UE switches from a source base station to a target base station, the handover information being used to indicate that the UE has switched.

[0672] In some implementations, the handover information includes at least one of the following:

[0673] a UE ID;

[0674] a target base station ID;

[0675] a sensing association ID.

[0676] In some implementations, the apparatus 1900 further includes a receiving module 1902 configured to receive a handover event subscription of the SF, the handover event subscription being used to indicate that the SF is notified when a UE switches, and the handover event subscription includes a sensing association ID and a UE ID.

[0677] In some implementations, the apparatus 1900 further includes a receiving module 1902 configured to receive a handover request sent by the source base station, the handover request carrying the handover information.

[0678] The sensing service continuity processing apparatus 1900 provided by the embodiments of the present application can implement each process performed by the AMF in the methods of embodiments one to fifteen and achieve the same technical effects. To avoid repetition, details are not described herein.

[0679] Embodiment twenty

[0680] Specifically, referring to FIG. 28, when the continuity processing apparatus for sensing service is an SF or a component in the SF, the continuity processing apparatus for sensing service 2000 includes a receiving module 2001 configured to receive switching information sent by a source base station or an access and mobility management function (AMF), the switching information being used to indicate that a user equipment (UE) has switching; and a processing module 2002 configured to request a target base station for sensing configuration information.

[0681] In some implementations, the switching information includes at least one of the following:

[0682] a UE ID;

[0683] a target base station ID;

[0684] a sensing association ID.

[0685] In some implementations, the processing module 2002 is specifically configured to send sensing-related information to the target base station to obtain the sensing configuration information.

[0686] In some implementations, the processing module 2002 is specifically configured to determine that sensing service needs to maintain continuity, and then send the sensing-related information to the target base station.

[0687] In some implementations, the apparatus further includes a receiving module configured to receive sensing configuration information sent by a target base station, and send the sensing configuration to the source base station, the AMF, or the UE.

[0688] In some implementations, the sensing-related information includes at least one of the following:

[0689] description information of sensing service;

[0690] a first indication, the first indication being used to indicate that the target base station generates sensing configuration information;

[0691] sensing capability information of the UE;

[0692] sensing authorization information of the UE;

[0693] a sensing mode, including a mode in which a base station sends a sensing signal and a UE receives and measures the sensing signal, or a mode in which the UE sends a sensing signal and the base station receives and measures the sensing signal;

[0694] a sensing method;

[0695] sensing QoS information;

[0696] a sensing association ID, the sensing association ID being used to identify a same sensing session or task.

[0697] address-related information of the SF.

[0698] a data network name, DNN, and / or a slice related to perception;

[0699] a UE ID;

[0700] first perception configuration information.

[0701] The continuity processing apparatus 2000 for a perception service provided by the embodiments can implement each process performed by the SF in the methods of the first embodiment to the fifteenth embodiment, and achieve the same technical effects. To avoid repetition, details are not described herein.

[0702] As shown in FIG. 29, the embodiments of the present application further provide a communication device 2100, which includes a processor 2101 and a memory 2102, and the memory 2102 stores programs or instructions executable on the processor 2101. For example, when the communication device 2100 is a terminal, the programs or instructions are executed by the processor 2101 to implement each step performed by the UE in the method embodiments described above, and achieve the same technical effects. When the communication device 2100 is a network-side device, the programs or instructions are executed by the processor 2101 to implement each step performed by the source base station, the target base station, the AMF or the SF in the method embodiments described above, and achieve the same technical effects. To avoid repetition, details are not described herein.

[0703] The embodiments of the present application further provide a terminal, which includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run programs or instructions to implement the steps performed by the UE in the method embodiments shown in FIGS. 5-23. The terminal embodiments correspond to the terminal-side method embodiments described above, and each implementation process and implementation manner of the method embodiments can be applied to the terminal embodiments, and achieve the same technical effects. The terminal can be the continuity processing apparatus for a perception service shown in FIG. 25. Specifically, FIG. 30 is a schematic diagram of a hardware structure of a terminal according to an embodiment of the present application.

[0704] The terminal 2200 includes, but is not limited to, at least part of the following components: a radio frequency unit 2201, a network module 2202, an audio output unit 2203, an input unit 2204, a sensor 2205, a display unit 2206, a user input unit 2207, an interface unit 2208, a memory 2209, and a processor 2210, etc.

[0705] Those skilled in the art can understand that the terminal 2200 can further include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 2210 through a power management system, so that the power management system can realize the functions of managing charging, discharging, power consumption management and the like. The terminal structure shown in FIG. 30 does not constitute a limitation on the terminal, and the terminal can include more or fewer components than those shown, or combine certain components, or different component arrangements, which are not described here.

[0706] It should be understood that in the embodiments of the present application, the input unit 2204 can include a graphics processor 22041 and a microphone 22042, and the graphics processor 22041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 2206 can include a display panel 22061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 2207 includes at least one of a touch panel 22071 and other input devices 22072. The touch panel 22071 is also called a touch screen. The touch panel 22071 can include two parts of a touch detection device and a touch controller. The other input devices 22072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), trackballs, mice, joysticks, which are not described here.

[0707] In the embodiments of the present application, after the radio frequency unit 2201 receives the downlink data from the network side device, it can be transmitted to the processor 2210 for processing. In addition, the radio frequency unit 2201 can send uplink data to the network side device. Generally, the radio frequency unit 2201 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0708] The memory 2209 can be used to store software programs or instructions and various data. The memory 2209 can mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area can store an operating system, application programs or instructions required by at least one function (such as a sound playing function, an image playing function, etc.), and the like. In addition, the memory 2209 can include a volatile memory or a non-volatile memory. The non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM), a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch link DRAM (SLDRAM), and a Direct Rambus RAM (DRRAM). The memory 2209 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0709] The processor 2210 can include one or more processing units; optionally, the processor 2210 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and an application program, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 2210.

[0710] The radio frequency unit 2201 is configured to receive, from the target base station or a sensing function (SF), sensing configuration information when the UE switches from a source base station to a target base station.

[0711] The processor 2210 is configured to perform reception, measurement, or transmission of a sensing signal according to the sensing configuration information.

[0712] In the communication switching process or the sensing switching process, the target base station receives sensing-related information from the source base station or the SF, determines sensing configuration information according to the sensing-related information, and sends the sensing configuration information to the source base station, the SF or the UE. The target base station generates the sensing configuration information according to the sensing-related information, and sends the sensing configuration information to the UE, so that the UE and the target base station can perform sensing-related operations based on the sensing configuration information, thereby ensuring the continuity of the sensing service after the UE switches from the source base station to the target base station.

[0713] It can be understood that the implementation processes of the implementation modes mentioned in the embodiments can refer to the related descriptions of the method embodiments one to fifteen, and achieve the same or corresponding technical effects. To avoid repetition, they will not be described here again.

[0714] The embodiments of the present application also provide a network side device, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to realize the steps performed by the source base station, the target base station, the AMF or the SF in the method embodiments shown in FIGS. 5-23. The network side device embodiments correspond to the network side device method embodiments described above. The implementation processes and implementation modes of the above method embodiments can be applied to the network side device embodiments, and the same technical effects can be achieved.

[0715] Specifically, the embodiments of the present application also provide a network side device, which can be the sensing service continuity processing apparatus shown in FIGS. 24, 26, 27 or 28. As shown in FIG. 31, the network side device 2300 includes an antenna 231, a radio frequency device 232, a baseband device 233, a processor 234 and a memory 235. The antenna 231 is connected with the radio frequency device 232. In the uplink direction, the radio frequency device 232 receives information through the antenna 231, and sends the received information to the baseband device 233 for processing. In the downlink direction, the baseband device 233 processes the information to be sent, and sends it to the radio frequency device 232. The radio frequency device 232 processes the received information and sends it out through the antenna 231.

[0716] The method performed by the network side device in the above embodiments can be implemented in the baseband device 233, which includes a baseband processor.

[0717] The baseband device 233 may, for example, include at least one baseband board, which is provided with a plurality of chips, as shown in FIG. 31. One of the chips is, for example, a baseband processor, which is connected with the memory 235 through a bus interface to call programs in the memory 235 and perform the network device operations shown in the above method embodiments.

[0718] The network side device can further include a network interface 236, for example, a Common Public Radio Interface (CPRI).

[0719] Specifically, the network side device 2300 of the embodiments of the present application further includes instructions or programs stored on the memory 235 and executable on the processor 234, the processor 234 invokes the instructions or programs in the memory 235 to perform the method performed by each module shown in FIGS. 24, 26, 27 or 28, and achieves the same technical effect. To avoid repetition, it will not be described here.

[0720] The embodiments of the present application also provide a readable storage medium, the readable storage medium stores programs or instructions, the programs or instructions are executed by a processor to implement each process of the above-mentioned method embodiments of FIGS. 5-23, and can achieve the same technical effect. To avoid repetition, it will not be described here.

[0721] The processor is the processor in the terminal, the source base station, the target base station, the AMF or the SF in the above-mentioned embodiments. The readable storage medium includes a computer readable storage medium, such as a computer readable memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. In some examples, the readable storage medium can be a non-transitory readable storage medium.

[0722] The embodiments of the present application further provide a chip, the chip includes a processor and a communication interface, the communication interface and the processor are coupled, the processor is used to run programs or instructions to implement each process of the above-mentioned method embodiments of FIGS. 5-23, and can achieve the same technical effect. To avoid repetition, it will not be described here.

[0723] It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system chip, a system chip, a chip system or a system on chip, etc.

[0724] The embodiments of the present application further provide a computer program / program product, the computer program / program product is stored in a storage medium, the computer program / program product is executed by at least one processor to implement each process of the above-mentioned method embodiments of FIGS. 5-23, and can achieve the same technical effect. To avoid repetition, it will not be described here.

[0725] The embodiments of the present application further provide a communication system, including a terminal, a source base station, a target base station, an AMF and an SF, the terminal can be used to execute the steps of the awareness service continuity processing method as described above, and the source base station, the target base station, the AMF and the SF can be used to execute the steps of the awareness service continuity processing method as described above.

[0726] It should be noted that, in the present document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a", "comprising", or the like does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element. Furthermore, it is to be understood that the methods and apparatuses of the present application can be carried out by specific hardware, software, or a combination thereof, and that the scope of the application is not limited to the specific order of execution of the steps described in the examples. In addition, features described in relation to certain examples can be combined in other examples.

[0727] From the above description of the embodiments, it is clear that the above-mentioned method can be realized by means of a computer software product and a general hardware platform, of course, it can also be realized by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disc, optical disc, etc.), and includes a plurality of instructions for making the terminal or network side device execute the method described in each embodiment of the present application.

[0728] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, the above-mentioned specific embodiments are only illustrative, not restrictive, and those skilled in the art can make many forms of embodiments under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A method of handling continuity of a perception service, wherein, Comprising: When a user equipment (UE) is handed over from a source base station to a target base station, the target base station receives sensing related information from the source base station or a sensing function (SF); The target base station determines sensing configuration information according to the sensing related information; The target base station sends the sensing configuration information to the source base station, the SF or the UE.

2. The method of claim 1, wherein, The sensing configuration information is used to describe how the UE receives, measures or sends sensing signals; Or, the sensing related information comprises at least one of: Description information of a sensing service; A first indication, which is used to indicate that the target base station generates sensing configuration information; Sensing capability information of the UE; Sensing authorization information of the UE; A sensing mode, which comprises a mode that a base station sends sensing signals, a UE receives and measures sensing signals, or a mode that a UE sends sensing signals, a base station receives and measures sensing signals; A sensing method; Sensing QoS information; A sensing association ID, which is used to identify a same sensing session or task; Address related information of the SF; A sensing related data network name (DNN) and / or slice; A UE ID; First sensing configuration information.

3. The method of claim 1, wherein, The sensing configuration information comprises at least one of: Frequency domain resource information of sending or receiving of sensing signals; Sending power of sensing signals; Sending period or receiving period of sensing signals; Sending frequency point or receiving frequency point of sensing signals; Sending timing or receiving timing of sensing signals.

4. The method of claim 2, wherein, When the first sensing configuration information is comprised in the sensing related information, the target base station determines the sensing configuration information according to the sensing related information, comprising: The target base station determines the first sensing configuration information as the sensing configuration information.

5. The method of any one of claims 1-4, wherein, The target base station sends the sensing configuration information to the source base station, the SF or the UE, comprising: The target base station sends the sensing configuration information and a sensing association ID to the source base station, the SF or the UE, the sensing association ID being used to identify a same sensing session or task.

6. The method of any one of claims 1-4, wherein, When the sensing mode is that the UE sends sensing signals and the target base station receives and measures sensing signals, the method further comprises: The target base station establishes a sensing transmission channel or session with the SF.

7. The method of claim 6, wherein, The target base station establishes a sensing transmission channel or session with the SF, comprising: According to the sensing association ID, address related information of the SF, a sensing related DNN and / or slice, the SF establishes a sensing transmission channel or session.

8. A method of handling continuity of a sensing service, wherein, Comprising: When a user equipment (UE) is handed over from a source base station to a target base station, the UE receives sensing configuration information from the target base station or a sensing function (SF); The UE performs receiving, measuring or sending of sensing signals according to the sensing configuration information.

9. The method of claim 8, wherein, The sensing configuration information comprises at least one of: Frequency domain resource information of sending or receiving of sensing signals; Sending power of sensing signals; Sending period or receiving period of sensing signals; Sending frequency point or receiving frequency point of sensing signals; Sending timing or receiving timing of sensing signals.

10. The method of claim 8 or 9, wherein, The sensing configuration information is carried in a handover command.

11. A method of handling continuity of a sensing service, wherein, Comprising: The source base station sends awareness-related information to the target base station or sends handover information to a sensing function (SF) or an access and mobility management function (AMF), the handover information being used to indicate that the UE is handed over.

12. The method of claim 11, wherein, The awareness-related information includes at least one of the following: description information of an awareness service; a first indication, the first indication being used to indicate that the target base station generates awareness configuration information; awareness capability information of the UE; awareness authorization information of the UE; an awareness mode, including a mode in which a base station sends an awareness signal and a UE receives and measures the awareness signal, or a mode in which a UE sends an awareness signal and a base station receives and measures the awareness signal; an awareness method; awareness QoS information; an awareness association ID, the awareness association ID being used to identify a same awareness session or task; address-related information of the SF; an awareness-related data network name (DNN) and / or slice; a UE ID; first awareness configuration information.

13. The method of claim 11, wherein, The handover information includes at least one of the following: a UE ID; a target base station ID; an awareness association ID.

14. The method of any one of claims 11-13, wherein, The method further includes: The source base station receives awareness configuration information from the target base station or the SF and sends the awareness configuration information to the UE.

15. A method of handling continuity of a perception service, wherein, The method includes: When a user equipment (UE) is handed over from a source base station to a target base station, an access and mobility management function (AMF) sends handover information to a sensing function (SF), the handover information being used to indicate that the UE is handed over.

16. The method of claim 15, wherein, The handover information includes at least one of the following: a UE ID; a target base station ID; an awareness association ID.

17. The method of claim 15 or 16, wherein, The method further includes: The AMF receives a handover event subscription of the SF, the handover event subscription being used to indicate that the SF is notified when a UE is handed over, the handover event subscription including an awareness association ID and a UE ID.

18. The method of claim 15 or 16, wherein, The method further includes: The AMF receives a handover request sent by the source base station, the handover request carrying the handover information.

19. A method of handling continuity of a sensing service, wherein, The method includes: A sensing function (SF) receives handover information sent by a source base station or an access and mobility management function (AMF), the handover information being used to indicate that a user equipment (UE) is handed over; The SF requests awareness configuration information from a target base station.

20. The method of claim 19, wherein, The handover information includes at least one of the following: a UE ID; a target base station ID; an awareness association ID.

21. The method of claim 19 or 20, wherein, The SF requests awareness configuration information from a target base station, including: The SF sends awareness-related information to the target base station to obtain the awareness configuration information.

22. The method of any one of claims 19-21, wherein, The method further includes: The SF receives awareness configuration information sent by the target base station and sends the awareness configuration to the source base station, the AMF, or the UE.

23. A continuity handling apparatus for a perception service, wherein, The method includes: A receiving module is configured to receive awareness-related information from a source base station or a sensing function (SF) when a user equipment (UE) is handed over from the source base station to a target base station; A processing module is configured to determine awareness configuration information according to the awareness-related information; A sending module is configured to send the awareness configuration information to the source base station, the SF, or the UE.

24. The apparatus of claim 23, wherein, The awareness configuration information includes at least one of the following: frequency domain resource information of sending or receiving of an awareness signal; sending power of an awareness signal; A transmission period or a reception period of the sensing signal; A transmission frequency point or a reception frequency point of the sensing signal; A transmission timing or a reception timing of the sensing signal.

25. The apparatus of claim 23 or 24, wherein, The sensing-related information includes at least one of: Description information of a sensing service; A first indication, which is used to instruct the target base station to generate sensing configuration information; Sensing capability information of the UE; Sensing authorization information of the UE; A sensing mode, which includes a mode that the base station transmits the sensing signal and the UE receives and measures the sensing signal, or a mode that the UE transmits the sensing signal and the base station receives and measures the sensing signal; A sensing method; Sensing QoS information; A sensing association ID, which is used to identify a same sensing session or task; Address-related information of the SF; A sensing-related data network name (DNN) and / or slice; A UE ID; First sensing configuration information.

26. An apparatus for handling continuity of a perception service, wherein, Comprising: A receiving module, which is configured to receive sensing configuration information from a target base station or a sensing function (SF) when a user equipment (UE) is handed over from a source base station to the target base station; A processing module, which is configured to perform reception, measurement or transmission of a sensing signal according to the sensing configuration information.

27. An apparatus for handling continuity of a perception service, wherein, Comprising: A sending module, which is configured to send sensing-related information to the target base station or send handover information to the SF or an access and mobility management function (AMF) when the UE is handed over from the source base station to the target base station, the handover information being used to instruct the UE to perform handover.

28. The apparatus of claim 27, wherein, The handover information includes at least one of: A UE ID; A target base station ID; A sensing association ID.

29. An apparatus for handling continuity of a perception service, wherein, Comprising: A sending module, which is configured to send handover information to the SF when the UE is handed over from the source base station to the target base station, the handover information being used to instruct the UE to perform handover.

30. The apparatus of claim 29, wherein, Further comprising: A receiving module, which is configured to receive a handover event subscription of the SF, the handover event subscription being used to instruct the SF to be notified when the UE performs handover, and the handover event subscription including a sensing association ID and a UE ID.

31. The apparatus of claim 29 or 30, wherein, Further comprising: A receiving module, which is configured to receive a handover request sent by the source base station, the handover request carrying the handover information.

32. An apparatus for handling continuity of a perception service, wherein, Comprising: A receiving module, which is configured to receive handover information sent by a source base station or an access and mobility management function (AMF), the handover information being used to instruct a user equipment (UE) to perform handover; A processing module, which is configured to request sensing configuration information from a target base station.

33. The apparatus of claim 32, wherein, The processing module is specifically configured to: Send sensing-related information to the target base station to obtain the sensing configuration information.

34. A communications device, comprising: A processor and a memory, the memory stores programs or instructions that can be run on the processor, and the programs or instructions are executed by the processor to implement the steps of the method in any one of claims 1 to 7, or implement the steps of the method in any one of claims 8 to 10, or implement the steps of the method in any one of claims 11 to 14, or implement the steps of the method in any one of claims 15 to 18, or implement the steps of the method in any one of claims 19 to 22.

35. A readable storage medium, wherein, The program or instruction is stored on the readable storage medium, and when executed by the processor, the program or instruction implements the steps of the method according to any one of claims 1 to 7, or the steps of the method according to any one of claims 8 to 10, or the steps of the method according to any one of claims 11 to 14, or the steps of the method according to any one of claims 15 to 18, or the steps of the method according to any one of claims 19 to 22.

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