Communication method and device for perception

Abstract

The embodiment of the invention relates to a communication method, equipment, a system, a chip, a medium and a program product. The communication method comprises the following steps: a terminal device in an idle state or an inactive state receives indication information used for indicating a perception capability requirement; and initiating connection establishment or connection recovery based on determining that the terminal device meets the perception capability requirement. In this way, the terminal equipment in the idle state or the inactive state can participate in the sensing process, so that the success rate of the sensing task is improved, and poor sensing performance caused by insufficient number of the terminal equipment in the connected state is avoided.

Description

Technical Field

[0001] The present disclosure relates to the field of communications, and more particularly, to a communication method, an apparatus, a system, a computer-readable storage medium, and a computer program product for sensing. Background Art

[0002] Integrated sensing and communication (ISAC) technology is a key technology in the next generation of wireless communication networks. It aims to use various propagation characteristics of wireless signals to realize sensing functions such as positioning, detection, imaging and identification of targets to obtain information about the surrounding physical environment. The sensing signal is emitted by the network element (for example, base station or terminal device) participating in the sensing process, and after being reflected by the target in the environment, it is received by the same network element or another network element participating in the sensing process. The device that receives the reflected signal of the sensing signal extracts the characteristics of the target in the environment (for example, location, speed, etc.) based on the reflected signal. Based on whether the network elements participating in the sensing process are different and whether the transmitting and receiving network elements are the same device, there are many basic forms of sensing modes involved in the wireless air interface. For the sensing mode with the participation of terminal devices, selecting a terminal device with sensing capabilities is an important process to realize the wireless sensing process. However, various aspects of the integrated sensing technology of communication still need further research and improvement to optimize its performance. Summary of the invention

[0003] Example embodiments of the present disclosure provide a method that can optimize perception performance and relate to a communication method, an apparatus, a system, a computer-readable storage medium, and a computer program product.

[0004] In a first aspect, an embodiment of the present disclosure provides a method, and optionally, the execution subject of the method may be a terminal device, or a device (such as a processor, a chip, or a chip system, etc.) applied in the terminal device, or a logic module or software that can realize all or part of the functions of the terminal device. The method includes: a terminal device in an idle state or an inactive state receives indication information for indicating a perception capability requirement; and based on determining that the terminal device meets the perception capability requirement, or when the terminal device meets the perception capability requirement, initiating connection establishment or connection recovery. In this way, terminal devices that meet the perception capability requirements and are in an idle state or an inactive state can participate in the perception process, thereby improving the success rate of the perception task and avoiding poor perception performance due to an insufficient number of terminal devices in a connected state.

[0005] In some embodiments, the method further includes: sending the sensing capability information of the terminal device in response to receiving a connection establishment message or a connection recovery message. In this way, the sensing capability information can be reported in response to receiving a connection establishment message or a connection recovery message, so that the network device can learn the sensing capability of the terminal device in an idle state or an inactive state, so as to select the terminal device participating in the sensing process. Reporting the sensing capability information in response to receiving a connection establishment message or a connection recovery message can reduce the signaling overhead for sensing capability reporting and reduce latency.

[0006] In some embodiments, the method further includes: in response to receiving a first request message for requesting the perception capability information, sending the perception capability information of the terminal device. In this way, the perception capability information can be reported based on the instruction from the network device, so that the network device can select the terminal device from the terminal devices that meet the perception capability requirements according to the actual situation to report the perception capability information. In this way, the communication resources required for reporting the perception capability information can be reduced.

[0007] In some embodiments, the sensing capability requirement includes at least one of the following: sensing type, sensing range, sensing resolution, or sensing accuracy. Based on the specific sensing capability requirement, it can be ensured that the terminal device establishing or restoring the connection can perform the sensing task with a high success rate, thereby improving the sensing performance.

[0008] In some embodiments, the indication information is included in the paging message. In this way, the terminal device can determine whether it meets the sensing capability requirements when it is in an idle state or an inactive state, thereby avoiding the terminal device that does not meet the sensing capability requirements from establishing or restoring a connection, and reducing signaling overhead.

[0009] In some embodiments, the method further comprises sending information related to the location of the terminal device. In this way, the network device can select the terminal device participating in the sensing process based on the location information of the terminal device, thereby improving the sensing performance.

[0010] In some embodiments, the method includes: receiving configuration information and state transition information related to the perception process, the state transition information is used to indicate that the terminal device is transitioned from a connected state to an idle state or an inactive state; based on the state transition information, transitioning from the connected state to the idle state or the inactive state; and after transitioning to the idle state or the inactive state, performing the perception process based on the configuration information. In this way, the terminal device can be released to the idle state or the inactive state to perform the perception process, thereby reducing the signaling overhead and power consumption caused by the connected state.

[0011] In the second aspect, an embodiment of the present disclosure provides a method, which can be applied to an access network device, or can be a device (such as a processor, a chip, or a chip system, etc.) applied to the access network device, or can be a logic module or software that can realize all or part of the functions of the access network device. The method includes: sending indication information for indicating the perception capability requirement to a terminal device in an idle state or an inactive state; and receiving a connection establishment request message or a connection recovery request message from the terminal device. In this way, it can be determined that the terminal device requesting to establish or restore a connection meets the perception capability requirements, so that the terminal device in an idle state or an inactive state can be selected to participate in the perception process, thereby improving the success rate of the perception task and avoiding poor perception performance due to an insufficient number of terminal devices in a connected state.

[0012] In some embodiments, the method further includes: receiving the sensing capability information of the terminal device from the terminal device based on sending a connection establishment message or a connection recovery message to the terminal device. In this way, the sensing capability of the terminal device in the idle state or the inactive state can be obtained when the terminal device in the idle state or the inactive state meets the sensing capability requirements, so as to select the terminal device participating in the sensing process. Receiving the sensing capability information in response to sending the connection establishment message or the connection recovery message can reduce the signaling overhead for sensing capability reporting and reduce the delay.

[0013] In some embodiments, the method further includes: receiving the sensing capability information of the terminal device from the terminal device based on sending a first request message for requesting the sensing capability information to the terminal device. In this way, the network device can select the terminal device from the terminal devices that meet the sensing capability requirements according to the actual situation to report the sensing capability information. As a result, the communication resources required for reporting the sensing capability information can be reduced.

[0014] In some embodiments, the sensing capability requirement includes at least one of the following: sensing type, sensing range, sensing resolution, or sensing accuracy. By providing specific sensing capability requirements, it can be ensured that the terminal device establishing or restoring the connection can perform the sensing task with a high success rate, thereby improving the sensing performance.

[0015] In some embodiments, the indication information is included in the paging message. In this way, the terminal device can determine whether it meets the sensing capability requirements when it is in an idle state or an inactive state, thereby avoiding the terminal device that does not meet the sensing capability requirements from establishing or restoring a connection, and reducing signaling overhead.

[0016] In some embodiments, the indication information is first indication information, and the method further includes: receiving second indication information for indicating a perception capability requirement from a core network device, wherein the first indication information is determined based on the second indication information. In this way, it can be determined that the terminal device requesting to establish or restore a connection meets the perception capability requirement from the core network device, and thus, the terminal device in an idle state or an inactive state can be enabled to participate in the perception process.

[0017] In some embodiments, the method further includes: sending the perception capability information of the terminal device to the core network device. Thus, the core network device can select the terminal device participating in the perception process based on the perception capability information of the terminal device in the idle state or the inactive state, thereby improving the success rate of the perception task and avoiding poor perception performance due to insufficient number of terminal devices in the connected state.

[0018] In some embodiments, the method further includes: receiving information related to the location of the terminal device from the terminal device; and sending information related to the location of the terminal device to the core network device. In this way, the core network device can select a terminal device to participate in the perception process based on the location information of the terminal device, thereby improving the perception performance.

[0019] In some embodiments, the method further comprises: receiving an indication of at least one terminal device for performing the perception process from the core network device, the at least one terminal device comprising the terminal device. In this way, a terminal device in an idle state or an inactive state can be made to participate in the perception process.

[0020] In some embodiments, the method further includes: sending configuration information and state transition information related to the perception process to the terminal device, the state transition information being used to instruct the terminal device to transition from a connected state to an idle state or an inactive state. In this way, the terminal device can be released to an idle state or an inactive state to perform the perception process, thereby reducing signaling overhead and power consumption caused by the connected state.

[0021] In a third aspect, an embodiment of the present disclosure provides a method, which can be applied to a core network device, or can be an apparatus (such as a processor, a chip, or a chip system, etc.) applied to a core network device, or can be a logic module or software that can implement all or part of the core network device functions. . The method includes: sending a second indication information or a second request message, wherein the second indication information is used to indicate the perception capability requirement, and the second request message is used for at least one access network device to determine a terminal device for performing a perception process; and receiving a response message to the second indication information or the second request message. In this way, terminal devices in an idle state or an inactive state can participate in the perception process, thereby improving the success rate of the perception task and avoiding poor perception performance due to an insufficient number of terminal devices in a connected state.

[0022] In some embodiments, the method further includes: determining at least one access network device for performing a sensing process; determining a first group of terminal devices, the first group of terminal devices being connected to the at least one access network device and being capable of performing a sensing process; wherein the second indication information is sent based on determining that the number of the first group of terminal devices is lower than a threshold number. In this way, when the number of terminal devices in a connected state is insufficient, terminal devices in an idle state or an inactive state can be selected to participate in the sensing process.

[0023] In some embodiments, the second indication information is used to request at least one of the following: sensing capability information of a terminal device in an idle state or an inactive state, or information related to the location of the terminal device, the sensing capability requirement includes at least one of the following: sensing type, sensing range, sensing resolution, or sensing accuracy, and the response message to the second indication information includes at least one of the following: sensing capability information, information related to the location of the terminal device, or an indication of at least one access network device. In this way, a terminal device in an idle state or an inactive state can be enabled to participate in the sensing process.

[0024] In some embodiments, the method further comprises: determining at least one terminal device for performing the sensing process based on the sensing capability information, the at least one terminal device being associated with at least one access network device; and sending an indication of the at least one terminal device. In this way, a terminal device in an idle state or an inactive state can be enabled to participate in the sensing process.

[0025] In some embodiments, the method further includes: determining at least one access network device for performing the perception process, wherein the second request message is used by the at least one access network device to determine the terminal device for performing the perception process. In this way, the access network device can select a terminal device in an idle state or an inactive state to participate in the perception process.

[0026] In a fourth aspect, an embodiment of the present disclosure provides a communication device, which is used to execute a unit or module of a method in the first aspect, the second aspect, the third aspect, or any embodiment thereof.

[0027] In a fifth aspect, an embodiment of the present disclosure provides a communication device, comprising a processor, wherein the processor is configured to execute a method as in the first aspect, the second aspect, the third aspect, or any embodiment thereof.

[0028] In some embodiments, the communication device further includes a memory coupled to the processor.

[0029] In a sixth aspect, an embodiment of the present disclosure provides a computer-readable storage medium storing instructions which, when executed by a device, cause the device to execute a method as in the first aspect, the second aspect, the third aspect, or any of its embodiments.

[0030] In a seventh aspect, an embodiment of the present disclosure provides a computer program product, which includes instructions, and when the instructions are executed by a device, the device causes the device to perform a method as in the first aspect, the second aspect, the third aspect, or any embodiment thereof.

[0031] In an eighth aspect, an embodiment of the present disclosure provides a communication system, comprising: a communication device for executing a method as in the first aspect or any one of its embodiments, and a communication device for executing a method as in the second aspect or any one of its embodiments.

[0032] In some embodiments, the communication system further comprises a communication device for executing the method as in the third aspect or any one of its embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Several implementations of the present application are shown here in an exemplary and non-limiting manner. In the accompanying drawings:

[0034] Figure 1A to Figure 1B Schematic diagrams showing different scenarios in which some embodiments of the present disclosure may be applied;

[0035] Figure 1C A schematic diagram showing a perception process to which some embodiments of the present disclosure may be applied;

[0036] Figure 2 A schematic signaling diagram showing a communication process according to some embodiments of the present disclosure;

[0037] FIG. 3A to FIG. 3D A schematic signaling diagram showing a communication process of terminal device selection based on a core network device according to some embodiments of the present disclosure;

[0038] FIG. 4A to FIG. 4C A schematic signaling diagram showing a communication process based on terminal device selection of an access network device according to some embodiments of the present disclosure;

[0039] FIG. 5A to FIG. 5B A schematic signaling diagram showing a communication process for reporting perception measurement data according to some embodiments of the present disclosure;

[0040] Figure 6 A schematic flow chart of a method implemented at a terminal device according to some embodiments of the present disclosure is shown;

[0041] Figure 7 A schematic flow chart of a method implemented at an access network device according to some embodiments of the present disclosure is shown;

[0042] Figure 8 A schematic flow chart showing a method implemented at a core network device according to some embodiments of the present disclosure is shown;

[0043] Fig. 9 A schematic diagram of the main components of an example device of a possible implementation method of the embodiments of the present disclosure; and

[0044] Fig.10 A simplified block diagram of an example device for one possible implementation of the disclosed embodiments.

[0045] In the various drawings, the same or similar reference numerals represent the same or similar elements. DETAILED DESCRIPTION

[0046] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments described herein, which are instead provided for a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0047] In the description of the embodiments of the present disclosure, the term "including" and similar terms should be understood as open inclusion, that is, "including but not limited to". The term "based on" should be understood as "based at least in part on". The term "one embodiment" or "the embodiment" should be understood as "at least one embodiment". The terms "first", "second", etc. may refer to different or identical objects. The term "and / or" means at least one of the two items associated therewith. For example, "A and / or B" means A, B, or A and B. Other explicit and implicit definitions may also be included below.

[0048] The embodiments of the present disclosure may be applied to a fourth generation (4G) communication system, such as a long term evolution (LTE) communication system, or to a fifth generation (5G) communication system, such as a 5G new radio (NR) communication system, or to various communication systems evolved after 5G, such as a sixth generation (6G) communication system. The embodiments of the present disclosure may also be applied to a Bluetooth system, a wireless fidelity (WiFi) system, a long range radio (LoRa) system, or a vehicle networking system. The embodiments of the present disclosure may also be applied to a satellite communication system, wherein the satellite communication system may be integrated with the above-mentioned communication system.

[0049] In the present disclosure, the term "core network device" or "core network element" may be a functional block located in the next generation core network (NGC). NGC may include, but is not limited to, any of the following: access and mobility management function (AMF), user plane function (UPF), gateway mobile location center (GMLC), user data management (UDM), location management function (LMF) and location retrieval function (LRF). AMF mainly performs functions such as mobility management or access authentication / authorization. In addition, AMF can receive non-access stratum (NAS) signaling of terminal devices and related signaling of access network devices (e.g., next generation (NG) 2 interface signaling at the base station granularity interacting with AMF). NGC may also include units or modules for performing perception processes (e.g., initiating perception tasks, determining perception configurations, and evaluating perception measurement data).

[0050] In the present disclosure, the term "access network device" refers to a network-side entity or node that can be used to communicate with a terminal device, such as an access network device. The access network device may be a device deployed in a wireless access network to provide wireless communication functions for a mobile terminal. For example, the access network device may be a base station (BS), an evolved NodeB (eNodeB), a next generation NodeB (gNB) in a 5G mobile communication system, a transmission reception point (TRP), a base station of subsequent evolution of 3GPP, an access node in a WiFi system, a wireless relay node, a wireless backhaul node, etc. It may also be an access network device in an open access network (open RAN, O-RAN or ORAN), a cloud radio access network (cloud radio access network, CRAN), or a communication network of two or more of the above networks. The access network device may include one or more transmission and reception points of co-site or non-co-site. In some deployments of the access network device, the access network device may include a centralized unit (CU), a distributed unit (DU), or a CU and a DU. In some other deployments of access network equipment, CU can also be divided into CU-control plane (CP) and CU-user plan (UP), etc. In some other deployments of access equipment, the access network equipment can also be a module or unit that completes some functions of the base station, for example, it can be a centralized unit (CU), a distributed unit (DU), or a radio unit (RU). The CU here completes the functions of the radio resource control protocol and the packet data convergence layer protocol (PDCP) of the base station, and can also complete the function of the service data adaptation protocol (SDAP); the DU completes the functions of the radio link control layer and the medium access control (MAC) layer of the base station, and can also complete the functions of part of the physical layer or all of the physical layer. For the specific description of the above-mentioned various protocol layers, please refer to the relevant technical specifications of the third generation partnership project (3GPP). CU and DU can be set separately, or they can also be included in the same network element, such as the baseband unit (BBU).The RU may be included in a radio frequency device or a radio frequency unit, for example, in a remote radio unit (RRU), an active antenna unit (AAU) or a remote radio head (RRH). In different systems, CU, DU or RU may also have different names, but those skilled in the art may understand their meanings. For example, in an ORAN system, CU may also be referred to as O-CU (open CU), DU may also be referred to as O-DU, and RU may also be referred to as O-RU. Any of the CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. The ORAN architecture includes a near-realtime RAN intelligence controller (near-RT RIC), CU, and DU. DU implements the functions of the physical (PHY) layer, the media access control (MAC) layer, and the radio link control (RLC) layer, CU implements the functions of the radio resource control (RRC) and the packet data convergence protocol (PDCP) layer, and the near real-time RIC implements the functions of the application layer (applayer). In the ORAN architecture, the AI ​​function is implemented in the near real-time RIC. Near real-time RIC may include functions such as wireless connection management, mobility management, QOS management, interference management, and training models for artificial intelligence. CU and DU can be connected via the F1 interface, and near real-time RIC and CU can be connected via the E2 interface. This application does not limit the specific deployment method of the access network device. Some functions of the wireless access network device can be implemented through multiple network function entities. These network function entities can be network elements in hardware devices, or they can be software functions running on dedicated hardware, or they can be virtualized functions instantiated on a platform (e.g., a cloud platform). For another example, in vehicle to everything (V2X) technology, the access network device may be a road side unit (RSU). Multiple access network devices in a communication system may be base stations of the same type or different types. A base station may communicate with a terminal device or communicate with the terminal device through a relay station. The access network device in the present disclosure may also be a device with a sensing function, which may transmit a sensing signal or receive and process a reflected signal from a target in the environment.In an embodiment of the present disclosure, the communication device for implementing the function of the access network device may be an access network device, or an access network device having some functions of a base station, or a device capable of supporting the access network device to implement the function, such as a chip system, which may be installed in the access network device.

[0051] In the present disclosure, the term "terminal device" refers to a user-side device with wireless transceiver functions, which can be a fixed device, a mobile device, a handheld device (such as a mobile phone), a wearable device, a vehicle-mounted device, or a wireless device built into the above device (such as a communication module, a modem, or a chip system, etc.). The terminal device is used to connect people, objects, machines, etc., and can be widely used in various scenarios, such as: cellular communication, device-to-device (D2D) communication, V2X communication, machine-to-machine / machine-type communication (M2M / MTC) communication, Internet of Things (IoT), virtual reality (VR), augmented reality (AR), industrial control, self driving, remote medical, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, drones, robots and other scenarios. Exemplarily, the terminal device may be a handheld terminal in cellular communication, a communication device in D2D, an IoT device in MTC, a surveillance camera in smart transportation and smart city, or a communication device on a drone, etc. The terminal device may sometimes be referred to as user equipment (UE), user terminal, user device, user unit, user station, terminal, access terminal, access station, UE station, remote station, mobile device or wireless communication device, etc.

[0052] In the present disclosure, the term "target" can be any tangible object in the environment that can reflect electromagnetic waves, such as mountains, forests, or buildings, and can also include movable objects such as vehicles, drones, pedestrians, and terminal devices. The target can also be called a perceived target, a detected target, a perceived object, a detected object, or a perceived device, etc., which is not limited in the embodiments of the present application.

[0053] In this disclosure, the term "perception" refers to the detection of parameters of a target in a physical environment, such as the position of a target, the speed of a target, etc. It can be understood that a radar detection system detects a target by emitting electromagnetic waves and analyzing the reflected signals from the object. Perception can also be called detection.

[0054] In the present disclosure, the term "sensing signal" refers to a signal that senses (or detects) a sensed target (or referred to as a target object). The sensing signal is also called a detection signal, a linear frequency modulation signal, a radar signal, a radar sensing signal, a radar detection signal, an environmental sensing signal, etc. The sensing signal can be a pulse signal or a signal in a wireless communication system.

[0055] In the present disclosure, the term "communication signal" refers to a signal for communication transmitted between communication devices, for example, including a signal transmitted between a network device and a terminal device. The communication signal may be, for example, a signal carried on a physical downlink shared channel (PDSCH).

[0056] In this disclosure, the term "downlink" refers to transmission from a network device to a terminal device.

[0057] In this disclosure, the term "uplink" refers to transmission from a terminal device to a network device.

[0058] For the perception mode with terminal device participation, the selection of terminal devices with perception capabilities is an important technical step in implementing the wireless perception process. When selecting terminal devices with perception capabilities, the connection status of the terminal devices may need to be considered. Usually, terminal devices that are in a connected state and have perception capabilities are selected to participate in the perception process. However, when the terminal devices in a connected state cannot meet the requirements of perception measurement, the probability of failure of the perception task execution is high.

[0059] Some embodiments of the present disclosure provide a method for selecting a terminal device to participate in a perception process, supporting a terminal device in an idle state or an inactive state to determine whether it meets the perception capability requirements, and responding if it meets the perception capability requirements, so that a network device can select a terminal device in an idle state or an inactive state and that meets the perception capability requirements to participate in the perception process. In this way, the success rate of the perception task can be improved, and poor perception performance caused by an insufficient number of terminal devices in a connected state can be avoided.

[0060] Figure 1AA schematic diagram of a scenario 100A in which some embodiments of the present disclosure can be applied is shown. Scenario A may involve a terminal device 110 and an access network device 120. The terminal device 110 may be an entity for receiving or transmitting communication signals and perception signals, and mainly implements the functions of wireless communication and wireless perception with the access network device 120. The access network device 120 may be an entity on the network side for transmitting or receiving communication signals and perception signals, and mainly implements the functions of wireless communication and wireless perception with the terminal device 110. In some cases, scenario A may also involve a core network device 130. The core network device 130 may include, for example, a perception function network element or an AMF, and the core network device 130 may communicate with the access network device 120 or communicate with the terminal device 110 through the access network device 120.

[0061] In scenario 100A, the access network device 120 transmits a perception signal, which is reflected by a target 140 in the environment, and the terminal device 110 receives the reflected signal, thereby sensing the position, speed and other information of the target 140. It should be noted that when the access network device 120 sends a perception signal for sensing, the perception signal carries the communication data or communication reference signal sequence that the access network device 120 wants to transmit to the terminal device 110. Figure 1A In the example, the target 140 in the environment is a different device from the terminal device 110.

[0062] In some cases, the sensing process may be initiated by the terminal device 110 or another terminal device. The core network device 130 may assist in the execution of the sensing process. In some cases, the sensing process may be initiated by the core network device 130, which may provide configuration related to the sensing process and receive the results of the sensing measurement.

[0063] Figure 1B A schematic diagram of a scenario 100B in which some embodiments of the present disclosure can be applied is shown. In scenario 100B, the terminal device 110 transmits a perception signal, the perception signal encounters a target 140 in the environment and is reflected, and the access network device 120 receives the reflected signal, thereby perceiving information such as the position and speed of the target 140. It should be noted that when the terminal device 110 sends a perception signal for perception, the perception signal carries the communication data or communication reference signal sequence that the terminal device 110 is to transmit to the access network device 120. In some cases, the perception process may be initiated by the terminal device 110 or another terminal device. The core network device 130 may assist in the execution of the perception process. In some cases, the perception process may be initiated by the core network device 130, and the core network device 130 may provide configurations related to the perception process and receive the results of the perception measurement.

[0064] It is important to understand that Figure 1A and Figure 1B The scenarios, number of devices and connections therebetween shown are for illustrative purposes only and do not imply any limitation. The embodiments of the present disclosure may also be applied to other possible scenarios, as long as there is sending and receiving of perception signals in the scenario and there are terminal devices participating in the perception process. For example, the embodiments of the present disclosure may also be applied to scenarios where terminal devices send and receive by themselves, that is, the device that sends the perception signal and receives the reflected signal of the perception signal after being reflected by a target in the environment is the same terminal device. In another example, the embodiments of the present disclosure may also be applied to scenarios where terminal device A sends and terminal device B receives, that is, the devices that send the perception signal and receive the reflected signal of the perception signal after being reflected by a target in the environment are different terminal devices. The embodiments of the present disclosure may also be applied to 5G NR systems or other communication systems, as long as there are entities with the ability to send perception signals and entities with the ability to receive the perception signals in the communication system.

[0065] Figure 1C Schematic diagram showing a perception process 100C in which some embodiments of the present disclosure may be applied. The perception process 110C may be applied to Figure 1A and Figure 1B For ease of understanding, reference will be made to the scenario shown in Figure 1A to Figure 1B To describe Figure 1C For example, the perception process 100C may involve the access network device 120 , the terminal device 110 , and the core network device 130 .

[0066] The sensing process 110C may be initiated by the core network device 130 or the service terminal device 110. The sensing process generally includes three steps: sensing capability reporting, sensing measurement configuration, and sensing measurement reporting.

[0067] In the perception process 110C, the perception capability reporting step 141 can be executed first to report the perception modes supported by the terminal device 110 and / or the access network device 120 and the capabilities related to perception signal processing to the core network device 130 and / or the access network device 120, thereby helping the core network device 130 / access network device 120 to determine the use of appropriate perception modes and perception resources.

[0068] Subsequently, the perception measurement configuration steps 142 and 143 may be performed, so that after the terminal device 110 and the access network device 120 receive the perception demand sent by the core network device 130, the allocation of the perception resources may be determined according to the perception demand. In the perception measurement configuration step, the access network device 120, as a network element that must participate in the perception process, is responsible for the allocation of air interface resources, so this process exists in the interaction process between the core network device 130 and the access network device 120 and the access network device 120 and the terminal device 110.

[0069] After the perception measurement is performed, the perception measurement reporting step 144 may be performed to report the perception measurement results collected by the terminal device 110 and / or the access network device 120 to the core network device 130 or the service terminal device 110. In different perception modes, the network element that reports the perception measurement results may be the terminal device 110 or the access network device 120.

[0070] It is important to understand that Figure 1C The perception process shown in FIG. 1 is for illustrative purposes only and does not imply any limitation. The embodiments of the present disclosure may also be applied to other possible perception processes.

[0071] Figure 2 FIG. 2 is a schematic signaling diagram of a communication process 200 according to some embodiments of the present disclosure. The communication process 200 may be applied to Figure 1A and Figure 1B The communication process 200 may be applied to the scenario shown in FIG. Figure 1C For ease of understanding, reference will be made to the perception process shown or other possible perception processes. Figure 1A to Figure 1B To describe Figure 2 For example, the communication process 200 may involve the access network device 120, the terminal device 110 and the core network device 130. It should be understood that the communication process 200 may also include additional blocks not shown and / or omit some of the blocks shown, and the scope of the present disclosure is not limited thereto.

[0072] refer to Figure 2 , the core network device 130 sends 202 indication information 204 or a request message 206 to the access network device 120. The indication information 204 is used to indicate the perception capability requirement. The request message 206 is used by at least one access network device to determine a terminal device for performing a perception process. The at least one access network device may include one or more access network devices. For ease of understanding, in the following, the steps or signaling related to at least one access network device in the communication process 200 are described by taking the access network device 120 as an example.

[0073] The access network device 120 receives 208 the indication information 204 or the request message 206 from the core network device 130, and sends 210 the indication information 212 for indicating the perception capability requirement to the terminal device 110 in the idle state or the inactive state. The indication information 212 is determined according to the received indication information 204 or the request message 206. It can be understood that the access network device 120 can send the indication information 212 to multiple terminal devices in the idle state or the inactive state. For ease of understanding, hereinafter, the steps or signaling related to the terminal device in the idle state or the inactive state in the communication process 200 are described by taking the terminal device 110 as an example.

[0074] The terminal device 110 in an idle state or an inactive state receives 214 indication information 212 indicating a sensing capability requirement. Based on the indication information 212, the terminal device 110 in an idle state or an inactive state determines 216 whether it meets the sensing capability requirement. If the terminal device 110 in an idle state or an inactive state meets the sensing capability requirement, the terminal device 110 initiates connection establishment or connection recovery. For example, the terminal device 110 may send 218 a connection establishment request message 220 or a connection recovery request message 222 to the access network device 120.

[0075] In one example, if the terminal device 110 is in an idle state, then if the terminal device 110 meets the perception capability requirements, the terminal device 110 may send 218 a connection establishment request message 220 (e.g., an RRCSetupRequest message) to the access network device 120. As a response to the connection establishment request message 220, the access network device 120 may send a connection establishment message (e.g., an RRCSetup message) to the terminal device 110. As a response to the connection establishment message, the terminal device 110 may send a connection establishment completion message (e.g., an RRCSetupComplete message) to the access network device 120. Thus, the terminal device 110 may transition from the idle state to the connected state.

[0076] In another example, if the terminal device 110 is in an inactive state, then if the terminal device 110 meets the perception capability requirements, the terminal device 110 can send 218 a connection recovery request message 222 (e.g., an RRCResumeRequest message) to the access network device 120. As a response to the connection recovery request message 220, the access network device 120 can send a connection recovery message (e.g., an RRCResume message) to the terminal device 110. As a response to the connection recovery message, the terminal device 110 can send a connection recovery completion message (e.g., an RRCResumeComplete message) to the access network device 120. As a result, the terminal device 110 can be converted from an inactive state to a connected state.

[0077] The access network device 120 receives 224 a connection establishment request message 220 or a connection restoration request message 222 from the terminal device 110. The access network device 120 may send 226 a response message 228 to the indication information 204 or the request message 206 to the core network device 130. Accordingly, the core network device 130 receives 230 a response message 228 to the indication information 204 or the request message 206 from the access network device 120.

[0078] In some embodiments, the core network device 130 may determine at least one access network device for performing a perception process. The core network device 130 may determine a first group of terminal devices, which are connected to at least one access network device and can be used to perform a perception process. If the number of the first group of terminal devices is lower than a threshold number, the core network device 130 sends an indication message 204 to the at least one access network device determined to perform the perception process, so that the at least one access network device determines the terminal device for performing the perception process. The indication message 204 is used to request at least one of the following: perception capability information of a terminal device in an idle state or an inactive state, or information related to the location of a terminal device in an idle state or an inactive state.

[0079] The access network device 120 determines the indication information 212 according to the indication information 204 received from the core network device 130. In some examples, the perception capability requirement indicated by the indication information 204 may include at least one of the following: perception type, perception range, perception resolution, or perception accuracy. Accordingly, the perception capability requirement indicated by the indication information 212 may include at least one of the following: perception type, perception range, perception resolution, or perception accuracy. In some embodiments, the indication information 212 may be the same information as the indication information 204. In another example, the indication information 212 may be information generated based on the indication information 204.

[0080] In some examples, the indication information 212 for indicating the perception capability requirement may be included in the paging message. In other words, the access network device 120 may send the indication information 212 to the terminal device in the idle state or the inactive state through the paging message. If the perception capability requirement indicated by the indication information 212 is met, the terminal device 110 initiates connection establishment or connection recovery. Thus, the terminal device 110 can be converted from the idle state or the inactive state to the connected state. In some example implementations, the access network device 120 may send the indication information 212 to the terminal device 110 through a unicast paging message. For example, the indication of the terminal device 110 may be used as an identifier of the unicast paging message, and the unicast paging message may include the indication of the terminal device 110 and the indication information 212 for indicating the perception capability requirement. In another example implementation, the access network device 120 may send the indication information 212 to the terminal device in the idle state or the inactive state through a multicast paging message. For example, as an identifier of the multicast paging message, the multicast paging message may include indication information 212 for indicating the sensing capability requirement, such as identification of the sensing type and sensing mode.

[0081] In some embodiments, in response to receiving a connection establishment message or a connection recovery message, the terminal device 110 may send the sensing capability information of the terminal device 110 to the access network device 120. In one example, the sensing capability information may be included in a connection establishment completion message or a connection recovery completion message. In another example, the sensing capability information may be included in a message different from the connection establishment completion message or the connection recovery completion message.

[0082] In some embodiments, when the terminal device 110 meets the perception capability requirements and initiates connection establishment or connection recovery, the access network device 120 may send a request message to the terminal device 110 for requesting perception capability information, and the terminal device 110 may send perception capability information to the access network device 120 in response to receiving the request message requesting perception capability information.

[0083] The access network device 120 may send the sensing capability information of the terminal device 110 to the core network device 130. The sensing capability information of the terminal device 110 may be included in the response message 228 to the indication information 204. In some examples, the response message 228 to the indication information 204 may also include the indication of the access network device 120.

[0084] In some embodiments, the terminal device 110 may also send information related to the location of the terminal device 110 to the access network device 120. Accordingly, the access network device 120 may send information related to the location of the terminal device 110 to the core network device 130. The response message 228 to the indication information 204 may also include information related to the location of the terminal device 110.

[0085] As a response message 228 to the indication information 204, the core network device 130 may receive the sensing capability information of the terminal device in an idle state or an inactive state and meeting the sensing capability requirement from the at least one access network device. Thus, the core network device 130 may determine at least one terminal device associated with the at least one access network device for performing the sensing process. As an example, the at least one terminal device determined for performing the sensing process may include the terminal device 110.

[0086] In some embodiments, core network device 130 may send an indication of at least one terminal device for performing the perception process to at least one access network device for performing the perception process. In one example, core network device 130 may send an indication of a terminal device associated with access network device 120 among at least one terminal device for performing the perception process to access network device 120. Access network device 120 may send configuration information related to the perception process to the terminal device associated with access network device 120 for performing the perception process. For example, configuration information

[0087] For example, the terminal device 110 may receive configuration information related to the perception process from the access network device 120, and perform the perception process. In one example, the terminal device 110 may remain in a connected state to perform the perception process. In another example, the terminal device 110 may be restored to an idle state or an inactive state to perform the perception process. For example, the terminal device 110 may receive state transition information from the access network device 120, and the state transition information is used to indicate that the terminal device 110 is converted from a connected state to an idle state or an inactive state. As an example, the state transition information may be indicated by a connection release message (e.g., an RRCRelease message or an RRCRelease message with a suspend configuration (RRCRelease with suspend configuration)). The configuration information related to the perception process may be included in the connection release message. Alternatively, the configuration information related to the perception process may be included in other messages, such as a system information block (SIB). The configuration information related to the perception process may include time-frequency domain resources for sending and receiving perception signals. In some embodiments, the core network device 130 may determine whether the terminal device 110 maintains the current connected state to perform the perception process or returns to an idle state or an inactive state to perform the perception process.

[0088] In some embodiments, the core network device 130 may determine at least one access network device for performing a perception process, and send a request message 206 to the at least one access network device determined to perform a perception process. Based on the request message 206, the access network device 120 may determine a first group of terminal devices connected to the access network device 120 and capable of performing a perception process. If the number of the first group of terminal devices is lower than the threshold number, the access network device 120 may send an indication message 212 to the terminal devices in an idle state or an inactive state. The perception capability requirement indicated by the indication message 212 may include at least one of the following: a perception type, a perception range, a perception resolution, or a perception accuracy. In some examples, the indication message 212 may be determined based on the request message 206. In another example, the indication message 212 may be determined by the access network device 120 based on the first group of terminal devices and the perception process to be performed.

[0089] In some examples, the indication information 212 may be included in a paging message. In other words, the access network device 120 may send the indication information 212 to a terminal device in an idle state or an inactive state via a paging message. In some example implementations, the access network device 120 may send the indication information 212 to the terminal device 110 via a unicast paging message. For example, the indication of the terminal device 110 may serve as an identifier of the unicast paging message, and the unicast paging message may include the indication of the terminal device 110 and the indication information 212 for indicating the perception capability requirement. In another example implementation, the access network device 120 may send the indication information 212 to the terminal device in an idle state or an inactive state via a multicast paging message. For example, the multicast paging message may include the indication information 212 for indicating the perception capability requirement as the identifier of the multicast paging message.

[0090] If the sensing capability requirement indicated by the indication information 212 is met, the terminal device 110 initiates connection establishment or connection recovery. For example, in response to receiving a connection establishment message or a connection recovery message, the terminal device 110 may send sensing capability information of the terminal device 110 to the access network device 120. In one example, the sensing capability information may be included in a connection establishment completion message or a connection recovery completion message. In another example, the sensing capability information may be included in a message different from the connection establishment completion message or the connection recovery completion message.

[0091] In some embodiments, when the terminal device 110 meets the perception capability requirements and initiates connection establishment or connection recovery, the access network device 120 may send a request message to the terminal device 110 for requesting perception capability information, and the terminal device 110 may send perception capability information to the access network device 120 in response to receiving the request message requesting perception capability information.

[0092] The access network device 120 may send the sensing capability information of the terminal device 110 to the core network device 130. The sensing capability information of the terminal device 110 may be included in the response message 228 for the indication information 204. In some examples, the response message 228 for the indication information 204 may also include the indication of the access network device 120. Based on the sensing capability information of the terminal devices that are in an idle state or an inactive state and meet the sensing capability requirements, the access network device 120 may determine at least one terminal device for performing the sensing process, and send a response message 228 for the request message 206 to the core network device 130. The access network device 120 may send configuration information related to the sensing process to the terminal device associated with the access network device 120 for performing the sensing process.

[0093] For example, the terminal device 110 may receive configuration information related to the perception process from the access network device 120, and perform the perception process. In one example, the terminal device 110 may remain in a connected state to perform the perception process. In another example, the terminal device 110 may be restored to an idle state or an inactive state to perform the perception process. For example, the terminal device 110 may receive state transition information from the access network device 120, and the state transition information is used to indicate that the terminal device 110 is converted from a connected state to an idle state or an inactive state. As an example, the state transition information may be indicated by a connection release message. The configuration information related to the perception process may be included in the connection release message. Alternatively, the configuration information related to the perception process may be included in other messages (e.g., SIBs).

[0094] In this way, if the number of connected terminal devices with perception capabilities is insufficient to support the execution of the perception process, terminal devices in an idle or inactive state can be selected to participate in the perception process. The perception measurement process does not require the establishment of an RRC connection, and terminal devices in an idle or inactive state can also perform perception measurements. If a terminal device in an idle or inactive state is selected to participate in the perception process, the terminal device can perform the perception process in a connected state, an idle state, or an inactive state. After completing the perception measurement configuration of the terminal device, it is necessary to confirm which terminal devices are selected to perform perception measurements in an idle or inactive state. Keeping the terminal device in an idle or inactive state for perception measurements can reduce network connection pressure.

[0095] The perception process requires perception measurement, that is, extracting the characteristics of the target in the environment based on the reflected signal. For the perception scenario where the terminal device receives the reflected signal (for example, Figure 1A In the scenario 100A shown in the figure, after obtaining the measurement result, the terminal device needs to report the perception measurement result. In some perception scenarios, the perception measurement result needs to be calculated on the terminal device side, which causes the terminal device to bear a large calculation pressure. If the perception measurement result is reported after each perception measurement, a large amount of perception measurement data needs to be reported. Some embodiments of the present disclosure relate to schemes related to reporting perception measurement data. In some embodiments, the scheme related to reporting perception measurement data can be executed after the communication process 200. That is, the terminal device selected by the communication process 200 can report the perception measurement data using the scheme related to reporting perception measurement data according to some embodiments of the present disclosure. In another embodiment, the scheme related to reporting perception measurement data can be executed independently of the communication process 200. That is, the scheme related to reporting perception measurement data according to some embodiments of the present disclosure can be applied to a terminal device selection process different from the communication process 200.

[0096] In some embodiments, the core network device 130 may send perception reporting configuration information to the access network device 120 for performing the perception process, and the perception reporting configuration information is used to indicate the condition for reporting the perception measurement data of the perception process by at least one terminal device for performing the perception process, and the condition is associated with channel state information (CSI). For example, the perception reporting configuration information may include a threshold, and the condition includes that the change in CSI is higher than the threshold. The access network device 120 may send the perception reporting configuration information to the terminal device. The perception reporting configuration information sent to the terminal device may be the same as the perception reporting configuration information sent by the core network device 130 to the access network device 120, or may be generated based on the perception reporting configuration information sent by the core network device 130 to the access network device 120.

[0097] The terminal device may perform a perception process to obtain CSI. When the CSI satisfies the condition indicated in the perception reporting configuration information, the perception measurement data of the perception process is sent to the access network device. For example, when the change amount of the CSI is higher than a threshold, the terminal device may report the perception measurement data of the perception process to the access network device 120. The access network device 120 may forward the perception measurement data to the core network device 130.

[0098] In this way, by configuring the CSI change threshold for the terminal device so that the terminal device reports the perception measurement data when the measured CSI change value is greater than the CSI change threshold, the amount of reported data and the calculation pressure of the terminal device can be reduced.

[0099] In some embodiments, the core network device 130 may send CSI reporting configuration information and perception reporting configuration information to the access network device 120 for performing the perception process, the CSI reporting configuration information being used to configure at least one terminal device for performing the perception process to report CSI information related to CSI, and the perception reporting configuration information being used to indicate a condition for at least one terminal device to report the perception measurement data of the perception process, the condition being associated with CSI. For example, the CSI reporting configuration information may include a reporting period, and the CSI information may include a change in the CSI, the perception reporting configuration information may include a threshold, and the condition may include that the change in the CSI is higher than the threshold. The terminal device may perform the perception process to obtain the CSI. The terminal device may send the CSI information to the access network device 120 based on the CSI reporting configuration information (e.g., the reporting period). The access network device 120 may determine whether the CSI information received from the terminal device meets the condition for reporting the perception measurement data of the perception process based on the perception reporting configuration information. If the CSI information does not meet the conditions for reporting the sensing measurement data of the sensing process, the access network device 120 may send a request message to the terminal device to request the sensing measurement data of the sensing process. Based on the request message, the terminal device may send the sensing measurement data of the sensing process to the access network device 120.

[0100] In this way, by configuring the CSI reporting period for the terminal device so that the terminal device periodically reports the perceived CSI change value, the access network device (e.g., base station) can select the user terminal device whose perceived CSI change value is greater than the CSI change threshold to report the perceived measurement data. Thus, the amount of reported data and the computing pressure of the terminal device can be reduced.

[0101] FIG. 3A to FIG. 3D Schematic signaling diagrams of communication processes 300A to 300D based on terminal device selection of a core network device according to some embodiments of the present disclosure are shown. The communication processes 300A to 300D may be applied to Figure 1A and Figure 1B For illustration purposes, FIG. 3A to FIG. 3D Reference Figure 1A and Figure 1B For description, the communication process 300A to 300D may involve accessing a connected UE 211, an idle or inactive UE 210, a gNB 220, an AMF 231, and a sensing function (SF 232). The connected UE 211 and the idle or inactive UE 210 may be Figure 1A and Figure 1BA specific example of the terminal device 110 in the embodiment of the present invention is used to receive or transmit communication signals and perception signals to realize the functions of wireless communication and wireless perception with the gNB 220. The gNB 220 may be Figure 1A and Figure 1B AMF 231 and SF 232 may be a specific example of the access network device 120 in FIG. Figure 1A and Figure 1B SF 232 is a core network element for implementing the sensing function. It should be understood that SF 232 is only illustrative and not intended to be limiting. SF 232 can also be implemented by other core network elements. Communication processes 300A to 300D can be regarded as Figure 2 The communication process 200 is shown as a specific example. It should be understood that the communication processes 300A to 300D may also include additional blocks not shown and / or omit some of the blocks shown, and the scope of the present disclosure is not limited in this regard.

[0102] like Figure 3A As shown, at 301, the connected UE 211 and the gNB 220 can report the sensing capability to the SF 232. Specifically, when the SF 232 receives the sensing service request, it first needs to determine the gNB that can participate in the sensing process. When determining the gNB that can participate in the sensing process, the SF 232 needs to first send a sensing capability request message to the gNB (e.g., gNB 220), and then the gNB can report its sensing capability to the SF 232 after receiving the sensing capability request message, including sensing resolution, sensing accuracy, sensing range and other information. Thus, the SF 232 can know the sensing capability of the gNB 220 and all connected UEs 211. The SF232 can determine the gNB (e.g., gNB220) used to perform the sensing task based on the sensing area, the sensing capability of the gNB and other information.

[0103] At 302, SF 232 may send a UE location information acquisition request to AMF 231, and the UE location information acquisition request may carry information of a gNB (e.g., a gNB ID list) to obtain location information of a connected UE 211 under a gNB for performing a sensing task. Specifically, the gNB identifier (ID) list may be information of the gNB determined to perform the sensing task.

[0104] At 303, AMF 231 may send UE location information to SF 232, and the UE location information may carry a gNB ID list.

[0105] At 304, SF 232 may select connected UE 211 participating in the sensing process based on information such as sensing area, UE location information, UE sensing capability, and network status, and determine whether the number of connected UEs selected to participate in the sensing process can meet the sensing task.

[0106] If the number of connected UEs selected to participate in the sensing process cannot meet the sensing task, the communication process 300B is continued after the communication process 300A.

[0107] like Figure 3B As shown, at 305, if the number of connected UEs whose sensing capabilities meet the capability requirements of this sensing task is insufficient, SF 232 may send a request message to AMF 231 to request the idle or inactive UE 210 under the gNB to report capability information and location information. The request message may carry indication information and a gNB ID list. Specifically, the gNBID list may be information of the gNB determined to perform the sensing task. The indication information may be used to page an idle or inactive UE with sensing capabilities. The indication information may include a requirement that the UE has sensing capabilities. For example, a bit in the indication information may have a value of 0 or 1, which may indicate that the UE is not required to have sensing capabilities and that the UE is required to have sensing capabilities, respectively. Additionally or alternatively, the indication information may include at least one of the following capability requirements: the sensing type supported by the UE, the sensing range supported by the UE, the sensing resolution, and the sensing accuracy, etc. The sensing type may include a base station sending a signal to a terminal device (for example Figure 1A The sensing mode shown), the terminal device sends and receives the base station (for example Figure 1BThe perception mode shown), terminal device sending and terminal device receiving (including terminal device sending and receiving by itself, or terminal device A sending and terminal device B receiving), and other perception modes. For example, the perception type requirement can be indicated by a bit in the indication information. In an example, the perception type requirement can be indicated by the value of three bits, for example, 000 indicates that the terminal device is required to support the perception mode of "base station sending and terminal device receiving", 001 indicates that the terminal device is required to support the perception mode of "terminal device sending and base station receiving", 010 indicates that the terminal device is required to support the perception mode of "terminal device sending and base station receiving", 011 indicates that the terminal device is required to support the perception mode of "terminal device sending and terminal device B receiving", 100 indicates that the terminal device is required to support the perception modes of "base station sending and terminal device receiving" and "terminal device sending and base station receiving", 101 indicates that the terminal device is required to support the perception modes of "base station sending and terminal device receiving" and "terminal device sending and base station receiving", ... In another example, the perception type requirement can be indicated by bit mapping. For example, the values ​​of 0 or 1 of the four bits respectively indicate whether the terminal device is required to support the perception modes of "base station sends and terminal device receives", "terminal device sends and base station receives", "terminal device sends and receives by itself", and "terminal device A sends and terminal device B receives". The perception resolution can be the minimum distance (usually in meters) at which the UE can perceive and distinguish two targets. The perception range supported by the UE may include perception range values ​​or intervals in meters, centimeters, etc. The perception accuracy can be a number from 0 to 1. Exemplarily, the indication information can be used to paging all idle or inactive UEs with perception capabilities. In another example, the indication information can be used to paging all idle or inactive UEs that support base station sending and terminal device receiving and have a perception range greater than 10 meters.

[0108] In 306, AMF 231 may initiate paging (eg, unicast paging or group paging), and the paging message may carry the above indication information.

[0109] In 307, gNB 220 may perform paging (e.g., unicast paging or group paging), and the paging message may carry the above indication information.

[0110] In 308, after receiving the paging message, the idle or inactive UE 210 can determine whether the perception identifier stored in itself matches the indication information. Specifically, the perception identifier can be an identifier containing the perception capability of the UE, and the identifier containing the perception capability of the UE can be used to match the perception capability in the indication information. In another example, the perception identifier can be information such as the perception service, user ID, whether the perception capability is present, etc., for matching with the indication information. The present disclosure is not limited here.

[0111] In 309, the idle or inactive UE 210 that meets the indication information requirements can send an RRCSetupRequest message or an RRCResumeRequest message to the gNB 220 to request to reestablish or restore the RRC connection.

[0112] In 310, after receiving a request from an idle or inactive UE 210 to reestablish or resume an RRC connection, the gNB 220 may respond with an RRCSetup or RRCResume message.

[0113] In 311, after receiving the response from gNB 220, the idle or inactive UE 210 can send an RRCSetup message or a ResumeComplete message, whereby the idle or inactive UE 210 completes the reconstruction or restoration of the RRC connection.

[0114] In 312, the UE that resumes the RRC connection may send a response message, which may carry its own sensing capability information. In some examples, the sensing capability information of the idle or inactive UE that meets the indication information requirements may also be included in the RRCSetupRequest message or RRCResumeRequest message in step 309 or the RRCSetup message or ResumeComplete message in step 311. Alternatively, the sensing capability information of the UE that resumes the RRC connection may also be sent in response to a request from gNB 220.

[0115] In 313, gNB 220 may send a response message to AMF 231, which may carry the perception capability information and location information of the UE that restored the RRC connection, and carry indication information of gNB 220 (e.g., gNB ID).

[0116] In 314, the AMF 231 may send a response message to the SF 232, which may carry the sensing capability information and location information of the UE that resumes the RRC connection, and carry indication information of the associated gNB, such as a gNB ID list. In one example, the gNB ID in the gNB ID list is associated with the sensing capability information and / or location information of the UE to indicate which gNB's network coverage the UE corresponding to the reported sensing capability information and / or location information is within.

[0117] In 315, after receiving the sensing capability information of the UE that is restoring the RRC connection, the SF 232 may select an idle or inactive UE to participate in the sensing process by combining the sensing area, UE location information, UE sensing capability, and network status. As an example, the SF 232 may select an idle or inactive UE 210 to participate in the sensing process.

[0118] SF 232 may decide whether the UE that resumes the RRC connection remains in the connected state to perform the sensing task or resumes to the idle state or the inactive state to perform the sensing task.

[0119] If SF 232 decides to restore the RRC connection of the UE to perform the sensing task in the connected state, the communication process 300C is continued after the communication process 300B. Figure 3C As shown, at 316, SF 232 sends selection result information to AMF 231 and carries the gNB ID list.

[0120] At 317, AMF 231 sends selection result information to the gNB 220 indicated in the gNB ID list.

[0121] At 318, gNB 220 sends the perception configuration information to UE 211 indicated in the selection result information. The perception configuration information may include information on resources such as time domain, frequency domain, spatial domain, and code domain used to send the perception signal. The UE that receives the message remains in the connected state and performs the perception task based on the perception configuration information. It can be understood that Figure 3C The connected UE 211 may include the connected UE selected in the communication process 300A and the UE that resumes the RRC connection selected in the communication process 300B.

[0122] If SF 232 decides to restore the RRC connection of the UE in the idle state or inactive state to perform the sensing task, the communication process 300D is continued after the communication process 300B. Figure 3D As shown, at 319, SF 232 sends selection result information to AMF 231 and carries the gNB ID list.

[0123] At 320, AMF 231 sends selection result information to the gNB 220 indicated in the gNB ID list.

[0124] At 321, the gNB 220 sends an RRCRelease message or an RRCRelease message with a suspension configuration to the UE 210 that resumes the RRC connection indicated in the selection result information to release the RRC connection, and the message may also carry the perception configuration information. The perception configuration information may include information on resources such as the time domain, frequency domain, spatial domain, and code domain used to send the perception signal. After receiving the message, the UE 210 that resumes the RRC connection may be released to an idle state or an inactive state and perform a perception task based on the perception configuration information.

[0125] Therefore, SF can select the UE to be sensed. SF first selects the connected UE to participate in the sensing process. The connected UE reports its sensing capability to SF. SF can select the connected UE to participate in the sensing process based on the sensing area, UE location information and UE sensing capability. When selecting the connected UE to participate in the sensing process, SF can request the location information of the connected UE under the gNB participating in the sensing task from AMF, and accurately select the connected UE that can participate in the sensing process based on the location information of the connected UE, the sensing area and the sensing capability of the connected UE.

[0126] When the number of connected UEs that meet the perception requirements does not meet the current perception task, SF can request AMF to initiate a paging message to wake up the idle or inactive UE0 to enter the connected state to report the perception capability and participate in the perception process. Specifically, SF sends a request message to AMF, carrying indication information. After receiving the above request information, AMF initiates unicast paging or multicast paging, and the paging message contains indication information. The indication information is used to page idle or inactive UEs with perception capabilities. The indication information may include UE perception capability requirements such as the perception type supported by the UE, the perception range of the UE, and the perception accuracy of the UE, so that the idle or inactive UEs that meet the indication information requirements respond to the paging message and participate in the perception process.

[0127] In this way, after receiving the sensing task, the core network device can select the connected UE that meets the sensing requirements, and when the number of connected UEs that meet the sensing requirements is insufficient, it can activate and select idle or inactive UEs to participate in the sensing process through paging. This can avoid the situation where the sensing task cannot be performed when the number of connected UEs is insufficient, and improve the success rate of the sensing task execution.

[0128] FIG. 4A to FIG. 4C Schematic signaling diagrams of communication processes 400A to 400C based on terminal device selection of an access network device according to some embodiments of the present disclosure are shown. The communication processes 400A to 400C may be applied to Figure 1A and Figure 1B For illustration purposes, FIG. 4A to FIG. 4C Reference Figure 1A and Figure 1B For description, the communication process 400A to 400C may involve accessing a connected UE 211, an idle or inactive UE 210, a gNB 220, an AMF 231, and a SF 232. The connected UE 211 and the idle or inactive UE 210 may be Figure 1A and Figure 1B A specific example of the terminal device 110 in the embodiment of the present invention is used to receive or transmit communication signals and perception signals to realize the functions of wireless communication and wireless perception with the gNB 220. The gNB 220 may be Figure 1A and Figure 1B AMF 231 and SF 232 may be a specific example of the access network device 120 in FIG. Figure 1A and Figure 1B SF 232 is a core network element for implementing the sensing function. It should be understood that SF 232 is only illustrative and not intended to be limiting. SF 232 can also be implemented by other core network elements. Communication processes 400A to 400C can be regarded as Figure 2 A specific example of the communication process 200 is shown. It should be understood that the communication processes 400A to 400C may also include additional blocks not shown and / or omit some of the blocks shown, and the scope of the present disclosure is not limited in this regard.

[0129] like Figure 4A As shown, at 401, gNB 220 reports the sensing capability to SF 232. Specifically, when SF 232 receives the sensing service request, it first needs to determine the gNB that can participate in the sensing process. When determining the gNB that can participate in the sensing process, SF 232 needs to first send a sensing capability request message to the gNB (e.g., gNB 220), and then the gNB can report its sensing capability to SF 232 after receiving the sensing capability request message, including sensing resolution, sensing accuracy, sensing range and other information. As a result, SF 232 can learn the sensing capabilities of gNB 220 and all connected UEs 211. SF 232 can determine the gNB (e.g., gNB 220) used to perform the sensing task based on the sensing area, the sensing capability of the gNB and other information.

[0130] At 402, SF 232 sends a request message to AMF 231 to request a UE for requesting to perform a sensing task, and the request message may carry a gNB ID list. Specifically, the gNB ID list may be information of the gNB determined to perform the sensing task.

[0131] At 403, AMF 231 sends a request message to gNB 220.

[0132] At 404, gNB 220 sends a perception capability request to connected UE 211, requesting connected UE 211 to report its own perception capability.

[0133] At 405, the connected UE 211 reports the perception capability information to the gNB 220.

[0134] At 406, gNB 220 selects connected UE 211 to participate in the sensing process based on information such as the sensing area, the sensing type supported by the UE, the sensing range of the UE, the sensing accuracy of the UE, the sensing capability of the UE, and the network status, and determines whether the number of connected UEs selected to participate in the sensing process can meet the sensing task.

[0135] At 407, if the number of connected UEs selected to participate in the sensing process cannot meet the sensing task, the gNB 220 pages the UE (e.g., unicast paging or group paging), and the paging message may carry indication information for paging idle or inactive UEs with sensing capabilities. Specifically, the indication information is used to paging idle or inactive UEs 210 with sensing capabilities. The indication information may include a requirement for the UE to have sensing capabilities. For example, a bit in the indication information has a value of 0 or 1, which may indicate that the UE is not required to have sensing capabilities and that the UE is required to have sensing capabilities, respectively. Additionally or alternatively, the indication information may include at least one of the following capability requirements: the sensing type supported by the UE, the sensing range supported by the UE, the sensing resolution, and the sensing accuracy. The sensing type may include base station sending and terminal equipment receiving (e.g. Figure 1A The sensing mode shown), the terminal device sends and receives the base station (for example Figure 1BThe perception mode shown), terminal device sending and terminal device receiving (including terminal device sending and receiving by itself, or terminal device A sending and terminal device B receiving), and other perception modes. For example, the perception type requirement can be indicated by a bit in the indication information. In an example, the perception type requirement can be indicated by the value of three bits, for example, 000 indicates that the terminal device is required to support the perception mode of "base station sending and terminal device receiving", 001 indicates that the terminal device is required to support the perception mode of "terminal device sending and base station receiving", 010 indicates that the terminal device is required to support the perception mode of "terminal device sending and base station receiving", 011 indicates that the terminal device is required to support the perception mode of "terminal device sending and terminal device B receiving", 100 indicates that the terminal device is required to support the perception modes of "base station sending and terminal device receiving" and "terminal device sending and base station receiving", 101 indicates that the terminal device is required to support the perception modes of "base station sending and terminal device receiving" and "terminal device sending and base station receiving", ... In another example, the perception type requirement can be indicated by bit mapping. For example, the values ​​of 0 or 1 of the four bits respectively indicate whether the terminal device is required to support the perception modes of "base station sends and terminal device receives", "terminal device sends and base station receives", "terminal device sends and receives by itself", and "terminal device A sends and terminal device B receives". The perception resolution can be the minimum distance (usually in meters) at which the UE can perceive and distinguish two targets. The perception range supported by the UE may include perception range values ​​or intervals in meters, centimeters, etc. The perception accuracy can be a number from 0 to 1. Exemplarily, the indication information can be used to paging all idle or inactive UEs with perception capabilities. In another example, the indication information can be used to paging all idle or inactive UEs that support base station sending and terminal device receiving and have a perception range greater than 10 meters.

[0136] At 408, after receiving the paging message, the idle or inactive UE 210 can determine whether the perception identifier stored in itself matches the indication information. Specifically, the perception identifier can be an identifier containing the perception capability of the UE, and the identifier containing the perception capability of the UE can be used to match the perception capability in the indication information. In another example, the perception identifier can be information such as a perception service, a user ID, whether the perception capability is present, etc., for matching with the indication information. The present disclosure is not limited here.

[0137] In 409, the idle or inactive UE 210 that meets the indication information requirements can send an RRCSetupRequest message or an RRCResumeRequest message to the gNB 220 to request to reestablish or restore the RRC connection.

[0138] In 410, after receiving a request from an idle or inactive UE 210 to reestablish or resume an RRC connection, the gNB 220 may respond with an RRCSetup or RRCResume message.

[0139] In 411, after receiving the response from gNB 220, the idle or inactive UE 210 may send an RRCSetup message or a ResumeComplete message, whereby the idle or inactive UE 210 completes the reestablishment or restoration of the RRC connection.

[0140] In 412, gNB 220 may send a sensing capability request to the UE to resume the RRC connection.

[0141] At 413, the UE resuming the RRC connection may report the sensing capability information to the gNB 220. In some examples, the sensing capability information of the idle or inactive UE that meets the indication information requirements may also be included in the RRCSetupRequest message or the RRCResumeRequest message in step 409 or the RRCSetup message or the ResumeComplete message in step 411. Alternatively, the sensing capability information of the UE resuming the RRC connection may also be sent in response to receiving the RRCSetup message or the ResumeComplete message.

[0142] At 414, after receiving the sensing capability information of the UE to resume the RRC connection, the gNB 220 may select an idle or inactive UE to participate in the sensing process based on the sensing area, the sensing type supported by the UE, the sensing range of the UE, the sensing accuracy of the UE, the UE sensing capability, and the network status. As an example, the gNB 220 may select an idle or inactive UE 210 to participate in the sensing process.

[0143] At 415, gNB 220 sends a response message to AMF 231, indicating that the UE selection is executed.

[0144] At 416, AMF 231 sends a response message to SF 232, indicating that the UE selection is completed.

[0145] gNB 220 can decide whether the UE that restores the RRC connection remains in the connected state to perform the sensing task or returns to the idle state or inactive state to perform the sensing task.

[0146] If gNB 220 decides to restore the RRC-connected UE to perform the sensing task in the connected state, communication process 400B is continued after communication process 400A. Figure 4BAs shown, at 417, gNB 220 sends perception configuration information to connected UE 211. The perception configuration information may include information on resources such as time domain, frequency domain, spatial domain, and code domain used to send perception signals. The UE that receives the message remains in the connected state and performs the perception task based on the perception configuration information. It can be understood that Figure 3C The connected state UE 211 may include the connected state UE selected in step 406 and the UE that resumes the RRC connection selected in step 414 .

[0147] If gNB 220 decides to restore the RRC-connected UE to perform the sensing task in the idle state or the inactive state, the communication process 400C is continued after the communication process 400A. Figure 4C As shown, at 418, gNB 220 sends an RRCRelease message or an RRCRelease message with a suspension configuration to the UE 210 selected in step 414 to restore the RRC connection for releasing the RRC connection, and the message may also carry the perception configuration information. The perception configuration information may include information on resources such as time domain, frequency domain, spatial domain, and code domain used to send the perception signal. After receiving the message, the UE 210 that restores the RRC connection may be released to an idle state or an inactive state and perform a perception task based on the perception configuration information.

[0148] Thus, the gNB can select the UE to be sensed. The gNB first selects the connected UE to participate in the sensing process. The gNB requests the connected UE to report its sensing capability. The gNB can select the connected UE to participate in the sensing process based on the sensing area, the sensing type supported by the UE, the sensing range of the UE, the sensing accuracy of the UE and the sensing capability of the UE. When the number of connected UEs that meet the sensing requirements does not meet the sensing task, the gNB can initiate a paging message to wake up the idle or inactive UE to enter the connected state to report the sensing capability and participate in the sensing process.

[0149] In this way, after receiving the request message from the core network device, the access network device can select a connected UE that meets the perception requirements, and when the number of connected UEs that meet the perception requirements is insufficient, it can activate and select idle or inactive UEs to participate in the perception process through paging. This can avoid the situation where the perception task cannot be performed when the number of connected UEs is insufficient, and improve the success rate of the perception task execution.

[0150] Figure 5A FIG. 5 is a schematic signaling diagram of a communication process 500A for reporting sensory measurement data according to some embodiments of the present disclosure. The communication process 500A may be applied to Figure 1A and Figure 1B For illustration purposes, Figure 5A Reference Figure 1A and Figure 1B , the communication process 500A may involve accessing UE 510, gNB 520, AMF / UPF 531, and SF 532. UE 510 may be Figure 1A and Figure 1B A specific example of the terminal device 110 in the embodiment of the present invention is used to receive or transmit communication signals and perception signals to realize the functions of wireless communication and wireless perception with the gNB 520. The gNB 520 may be Figure 1A and Figure 1B AMF / UPF 531 and SF 532 may be Figure 1A and Figure 1B SF 532 is a core network element for implementing the sensing function. It should be understood that SF 532 is only illustrative and not intended to be limiting. SF 532 may also be implemented by other core network elements. It should be understood that the communication process 500A may also include additional blocks not shown and / or omit some of the blocks shown, and the scope of the present disclosure is not limited thereto.

[0151] like Figure 5A As shown, at 501, SF 532 may send perception measurement configuration information to gNB 520 via AMF / UPF 531, and the perception measurement configuration information may include CSI reporting period and CSI change threshold. Specifically, CSI may reflect information such as channel gain and phase. Due to the movement and occlusion of the target, the CSI phase at different times may change to varying degrees. In addition, when the environment remains unchanged, the amplitude and phase of CSI should be stable or change less. The CSI reporting period may stipulate that UE 510 can only perform CSI reporting operations after reaching this period each time. The change value of the perceived CSI is the change value of the CSI phase measured by UE 510 in one or more perception measurement processes. Exemplarily, the change value of CSI may be the change value of the CSI phase quotient or CSI phase difference measured by UE510 in one or more perception measurement processes.

[0152] At 502, the gNB 520 may send a CSI reporting period configuration request to the UE 510, and the reporting period configuration request may include the CSI reporting period.

[0153] At 503, after the configuration is completed, UE 510 can send a configuration completion message to gNB 520.

[0154] At 504, during the CSI reporting period, the UE 510 and the gNB 520 may perform perception measurements on the target.

[0155] At 505, when the CSI reporting period is reached, the UE 510 may report the perceived CSI change value within the CSI reporting period.

[0156] At 506, the gNB 520 may compare the received perceived CSI change value with the CSI change threshold to determine whether the perceived measurement data needs to be reported.

[0157] At 507, the gNB 520 may send a perception measurement data reporting request to the UE 510 whose CSI change value exceeds the CSI reporting threshold.

[0158] At 508, the UE 510 that receives the perception measurement data reporting request may report the perception measurement results to the gNB 520.

[0159] At 509, the gNB 520 may report the perception measurement results to the SF 532 via the AMF / UPF 531.

[0160] In this way, the access network device can configure the CSI reporting period for the terminal device, and the terminal device can send the perceived CSI change value within the reporting period to the access network device after reaching the reporting period. The access network device compares the received perceived CSI change value with the CSI change threshold, and requests the terminal device whose CSI change value exceeds the CSI reporting threshold to send the perceived measurement data. By periodically reporting the CSI change value by the terminal device, and the access network device judging whether the terminal device should report the perceived measurement data based on the CSI reporting threshold, the amount of data reported and the reporting frequency of the perceived measurement data can be reduced.

[0161] Figure 5B A schematic signaling diagram of a communication process 500B for reporting sensory measurement data according to some embodiments of the present disclosure is shown. The communication process 500B may be applied to Figure 1A and Figure 1B For illustration purposes, Figure 5B Reference Figure 1A and Figure 1B 5B may involve accessing UE 510, gNB 520, AMF / UPF 531, and SF 532. UE 510 may be Figure 1A and Figure 1B A specific example of the terminal device 110 in the embodiment of the present invention is used to receive or transmit communication signals and perception signals to realize the functions of wireless communication and wireless perception with the gNB 520. The gNB 520 may be Figure 1A and Figure 1B AMF / UPF 531 and SF 532 may be Figure 1A and Figure 1B SF 532 is a core network element for implementing the sensing function. It should be understood that SF 532 is only illustrative and not intended to be limiting. SF 532 may also be implemented by other core network elements. It should be understood that the communication process 500B may also include additional blocks not shown and / or omit some of the blocks shown, and the scope of the present disclosure is not limited thereto.

[0162] like Figure 5B As shown, at 511, SF 532 may send perception measurement configuration information to gNB 520 via AMF / UPF 531, and the perception measurement configuration information may include a CSI change threshold. Specifically, CSI may reflect information such as channel gain and phase. Due to the movement and occlusion of the target, the CSI phase at different times may change to varying degrees. In addition, when the environment remains unchanged, the amplitude and phase of CSI should be stable or change less. The CSI reporting period may stipulate that UE510 can only perform CSI reporting operations after reaching this period each time. The change value of the perceived CSI is the change value of the CSI phase measured by UE 510 in one or more perception measurement processes. Exemplarily, the change value of CSI may be the change value of the CSI phase quotient or CSI phase difference measured by UE 510 in one or more perception measurement processes.

[0163] At 512, the gNB 520 may send a CSI reporting period configuration request to the UE 510, and the reporting period configuration request may include a CSI change threshold.

[0164] At 513, after the configuration is completed, UE 510 can send a configuration completion message to gNB 520.

[0165] At 514, UE 510 and gNB 520 may perform perception measurements of the target.

[0166] At 515, UE 510 may compare the measured perceived CSI change value with the CSI change threshold to determine whether to report the perceived measurement data. If the CSI change value is greater than the CSI change threshold, the perceived measurement data is reported, otherwise it is not reported.

[0167] At 516, the UE 510 whose measured CSI change value is greater than the CSI change threshold reports the perception measurement result to the gNB 520.

[0168] At 517, gNB 520 reports the perception measurement results to SF 532 via AMF / UPF 531.

[0169] In this way, the access network device can configure the CSI change threshold for the terminal device, and the terminal device compares the perceived CSI change value measured each time with the CSI change threshold. If the CSI change value is greater than the CSI change threshold, the perceived measurement data is reported, otherwise it is not reported. By having the terminal device determine whether the terminal device should report the perceived measurement data based on the CSI reporting threshold, the amount of data reported and the reporting frequency of the perceived measurement data can be reduced.

[0170] Some embodiments of the present disclosure relate to a communication process for reporting sensing measurement data. Figure 1A In the scenario 100A shown in the figure), the core network device can send a perception measurement configuration to the access network device. On the one hand, according to some embodiments of the present disclosure, the amount of data reported for perception measurement can be reduced. If the CSI between the current moment and the previous moment has basically not changed or has changed slightly, it can be regarded that the perception target has not moved or is blocked, and there is no need to report the perception measurement data. For example, when continuously sensing the position of the target, if the target moves slowly, the frequency of data reporting can be reduced, thereby reducing the amount of data reporting. On the other hand, according to some embodiments of the present disclosure, the processing delay and calculation pressure of the terminal device can be reduced. Since the terminal device needs to perform a lot of calculations when generating the perception measurement data results, by reducing the reporting frequency of the perception measurement data, the calculation of the perception measurement data results for each perception measurement can be avoided, thereby reducing the processing delay and calculation pressure of the terminal device. For example, it can avoid the terminal device calculating the distance-Doppler velocity spectrum for the CSI of each perception measurement, thereby reducing the processing delay and calculation pressure of the terminal device.

[0171] Figure 6 FIG. 6 is a schematic flow chart of a method 600 implemented at a terminal device according to some embodiments of the present disclosure. In a possible implementation, the method 600 may be implemented by Figure 1A and Figure 1B In other possible implementations, the method 600 may also be implemented by a terminal device 110 independently of Figure 1A and Figure 1B As an example, the following will be implemented by other electronic devices of the electronic device shown in Figure 1A and Figure 1B The method 600 is described by taking the terminal device 110 in FIG. 1 as an example.

[0172] At 620 , the terminal device 110 in an idle state or an inactive state receives indication information for indicating a sensing capability requirement.

[0173] At 640 , based on the determination that the sensing capability requirement is met, the terminal device 110 in the idle state or the inactive state initiates connection establishment or connection recovery.

[0174] In some embodiments, in response to receiving a connection establishment message or a connection recovery message, the terminal device 110 sends the perception capability information of the terminal device 110 .

[0175] In some embodiments, in response to receiving a first request message for requesting sensing capability information, the terminal device 110 sends the sensing capability information of the terminal device 110 .

[0176] In some embodiments, the perception capability requirement includes at least one of the following: perception type, perception range, perception resolution, or perception accuracy.

[0177] In some embodiments, the indication information is included in a paging message.

[0178] In some embodiments, terminal device 110 sends information related to the location of terminal device 110.

[0179] In some embodiments, the terminal device 110 receives configuration information related to the perception process; and based on the configuration information, performs the perception process.

[0180] In some embodiments, the terminal device 110 receives configuration information and state transition information related to the perception process, the state transition information is used to indicate that the terminal device transitions from a connected state to an idle state or an inactive state; based on the state transition information, transitions from a connected state to an idle state or an inactive state; and after transitioning to the idle state or the inactive state, performs the perception process based on the configuration information.

[0181] In some embodiments, the terminal device 110 receives channel state information (CSI) reporting configuration information, the CSI reporting configuration information is used to configure the terminal device to report CSI information related to the CSI; performs a perception process to obtain CSI information; based on the CSI reporting configuration information, sends CSI information to an access network device; receives a request message, the request message is used to request perception data of the perception process; and sends perception data.

[0182] In some embodiments, the sending of CSI information is used by the access network device to determine whether the perception data needs to be reported.

[0183] In some embodiments, the CSI reporting configuration information includes a reporting period.

[0184] In some embodiments, the CSI information includes a change in the CSI.

[0185] In some embodiments, the terminal device 110 receives perception reporting configuration information from an access network device, where the perception reporting configuration information is used to indicate conditions for reporting perception data of a perception process by the terminal device, where the conditions are associated with the CSI; performs the perception process to obtain the CSI; and based on determining that the CSI satisfies the conditions, sends the perception data of the perception process to the access network device.

[0186] In some embodiments, the sensing reporting configuration information includes a threshold, and the condition includes that a change in the CSI is higher than the threshold.

[0187] Figure 7 FIG. 7 is a schematic flow chart of a method 700 implemented at a terminal device according to some embodiments of the present disclosure. In a possible implementation, the method 700 may be implemented by Figure 1A and Figure 1B In other possible implementations, the method 700 may also be implemented by an access network device 120 independent of Figure 1A and Figure 1B As an example, the following will be implemented by other electronic devices of the electronic device shown in Figure 1A and Figure 1B The method 700 is described by taking the access network device 120 in FIG. 1 as an example.

[0188] At 720 , the access network device 120 sends indication information for indicating a sensing capability requirement to the terminal device in an idle state or an inactive state.

[0189] At 740 , the access network device 120 receives a connection establishment request message or a connection recovery request message from the terminal device.

[0190] In some embodiments, based on sending a connection establishment message or a connection recovery message to the terminal device, the access network device 120 receives the perception capability information of the terminal device from the terminal device.

[0191] In some embodiments, based on sending a first request message for requesting the sensing capability information to the terminal device, the access network device 120 receives the sensing capability information of the terminal device from the terminal device.

[0192] In some embodiments, the perception capability requirement includes at least one of the following: perception type, perception range, perception resolution, or perception accuracy.

[0193] In some embodiments, the indication information is included in a paging message.

[0194] In some embodiments, the indication information is first indication information, and the access network device 120 receives second indication information for indicating the perception capability requirement from the core network device, wherein the first indication information is determined according to the second indication information.

[0195] In some embodiments, the access network device 120 sends the sensing capability information to the core network device.

[0196] In some embodiments, the access network device 120 receives information related to the location of the terminal device from the terminal device in a connected state; and sends information related to the location of the terminal device to the core network device.

[0197] In some embodiments, the access network device 120 receives an indication of at least one terminal device for performing a sensing process from the core network device, the at least one terminal device comprising a terminal device.

[0198] In some embodiments, the access network device 120 receives a request message from a core network device, the request message being used to request the access network device to determine a terminal device for performing a perception process; and based on the request message, determines a first group of terminal devices, the first group of terminal devices being in a connected state and capable of being used to perform the perception process, wherein the indication information is sent based on determining that the number of terminal devices in the first group is lower than a threshold number.

[0199] In some embodiments, the access network device 120 determines at least one terminal device for performing a perception process based on the perception capability information, the at least one terminal device including a terminal device in a connected state; and sends a response message to the core network device in response to a request message for requesting the access network device to determine a terminal device for performing the perception process.

[0200] In some embodiments, the access network device 120 sends configuration information related to the sensing process to the terminal device.

[0201] In some embodiments, the access network device 120 sends configuration information and state transition information related to the perception process to the terminal device in the connected state, and the state transition information is used to indicate that the terminal device switches from the connected state to the idle state or the inactive state.

[0202] In some embodiments, the access network device 120 receives channel state information (CSI) reporting configuration information and perception reporting configuration information from the core network device, the CSI reporting configuration information is used to configure at least one terminal device used to perform a perception process to report CSI information related to the CSI, and the perception reporting configuration information is used to indicate a condition for at least one terminal device to report perception data of the perception process, and the condition is associated with the CSI; sends the CSI reporting configuration information to at least one terminal device; receives CSI information from at least one terminal device; based on determining that the CSI satisfies the condition, sends a request message to at least one terminal device, the request message is used to request the perception data of the perception process; and receives perception data from at least one terminal device.

[0203] In some embodiments, the CSI reporting configuration information includes a reporting period, and the CSI information includes a change amount of the CSI, the perception reporting configuration information includes a threshold, and the condition includes that the change amount of the CSI is higher than the threshold.

[0204] In some embodiments, the access network device 120 receives the perception reporting configuration information from the core network device, where the perception reporting configuration information is used to indicate a condition for reporting the perception data of the perception process by at least one terminal device used to perform the perception process, where the condition is associated with the CSI;

[0205] Sending perception reporting configuration information to at least one terminal device; and receiving perception data from at least one terminal device.

[0206] In some embodiments, the access network device 120 senses that the reporting configuration information includes a threshold, and the condition includes that a change in the CSI is higher than the threshold.

[0207] Figure 8 FIG. 8 is a schematic flow chart of a method 800 implemented at a terminal device according to some embodiments of the present disclosure. In a possible implementation, the method 800 may be implemented by Figure 1A and Figure 1B In other possible implementations, the method 800 may also be implemented by a core network device 130 in a separate Figure 1A and Figure 1B As an example, the following will be implemented by other electronic devices of the electronic device shown in Figure 1A and Figure 1B The method 800 is described by taking the core network device 130 in FIG. 8 as an example.

[0208] At 820 , the core network device 130 sends indication information or a request message, wherein the indication information is used to indicate a sensing capability requirement, and the request message is used for at least one access network device to determine a terminal device for performing a sensing process.

[0209] At 840 , the core network device 130 receives a response message to the indication information or the request message.

[0210] In some embodiments, the core network device 130 determines at least one access network device for performing a perception process; determines a first group of terminal devices, which are connected to at least one access network device and can be used to perform the perception process; wherein the indication information is sent based on determining that the number of terminal devices in the first group is lower than a threshold number.

[0211] In some embodiments, the indication information is used to request at least one of the following: sensing capability information of a terminal device in an idle state or an inactive state, or information related to a location of the terminal device, wherein the sensing capability requirement includes at least one of the following: sensing type, sensing range, sensing resolution, or sensing accuracy. The response message to the indication information includes at least one of the following: sensing capability information, information related to the location of the terminal device, or an indication of at least one access network device.

[0212] In some embodiments, the core network device 130 determines at least one terminal device for performing a perception process based on the perception capability information, wherein the at least one terminal device is associated with at least one access network device; and sends an indication of the at least one terminal device and an indication of the at least one access network device.

[0213] In some embodiments, the core network device 130 determines at least one access network device for performing the perception process, wherein the request message is used by the at least one access network device to determine a terminal device for performing the perception process.

[0214] In some embodiments, the core network device 130 sends perception reporting configuration information to the access network device, the perception reporting configuration information being used to indicate a condition for reporting perception data of a perception process by at least one terminal device for performing the perception process, the condition being associated with channel state information (CSI). In some embodiments, the perception reporting configuration information includes a threshold, and the condition includes a change in the CSI being higher than the threshold.

[0215] In some embodiments, the core network device 130 sends CSI reporting configuration information to the access network device, and the CSI reporting configuration information is used to configure at least one terminal device to report CSI information related to CSI. In some embodiments, the CSI reporting configuration information includes a reporting period, and the CSI information includes a change in CSI.

[0216] Fig. 9 The following is a schematic diagram of the structure of possible communication devices (also called communication equipment) provided for embodiments of the present disclosure. These communication devices can implement the functions of the terminal device or network device in the above method embodiments, and thus can also achieve the beneficial effects possessed by the above method embodiments. In the embodiments of the present disclosure, the communication device can be Figure 1A to Figure 2 The terminal device 110, access network device 120 or core network device 130.

[0217] like Fig. 9 As shown, the communication device 900 includes a processing unit 910, a receiving unit 920, and a sending unit 930. The communication device 900 can be used to implement the above-mentioned FIG. Figure 8The functions of a terminal device, an access network device or a core network device in any of the method embodiments shown in .

[0218] When the communication device 900 is used to implement Figure 1A to Figure 2 When the function of the terminal device is: the receiving unit 920 is used to receive indication information for indicating the perception capability requirements, and the processing unit is used to initiate connection establishment or connection recovery based on determining that the perception capability requirements are met.

[0219] When the communication device 900 is used to implement Figure 1A to Figure 2 When the function of the access network device is used: the sending unit 930 is used to send indication information for indicating the perception capability requirement to the terminal device in the idle state or the inactive state, and the receiving unit 920 is used to receive a connection establishment request message or a connection recovery request message from the terminal device.

[0220] When the communication device 900 is used to implement Figure 1A to Figure 2 When the function of the core network device in the access network is implemented: the sending unit 930 is used to send an indication information or a request message, wherein the indication information is used to indicate the perception capability requirement, and the request message is used by at least one access network device to determine a terminal device for performing the perception process; the receiving unit 920 is used to receive a response message to the indication information or the request message.

[0221] For more detailed description of the processing unit 910, the receiving unit 920, and the sending unit 930, please refer to Figures 2 to 8 The relevant description is shown in the embodiment.

[0222] In some embodiments, the processing unit may be a processor, the sending unit may be a transmitter, and the receiving unit may be a receiver.

[0223] Fig.10 A simplified block diagram of a possible communication apparatus (also referred to as a communication device) provided for an embodiment of the present disclosure. Fig.10 As shown, the communication device 1000 includes a processor 1010 and an interface circuit 1020. The processor 1010 and the interface circuit 1020 are coupled to each other. It is understood that the interface circuit 1020 can be a transceiver or an input-output interface. Optionally, the communication device 1000 may also include a memory 1030 for storing instructions executed by the processor 1010 or storing input data required by the processor 1010 to execute instructions or storing data generated after the processor 1010 executes instructions.

[0224] When the communication device 1000 is used to implement the method in the above method embodiment, the processor 1010 is used to execute the function of the above processing unit 910, and the interface circuit 1020 is used to execute the functions of the above receiving unit 920 and the sending unit 930.

[0225] It is understood that the processor in the embodiments of the present disclosure may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0226] The present disclosure provides a communication system. The communication system may include the above Fig. 9 The communication device involved in the embodiment shown is as follows Figure 1A to Figure 2 The terminal device 110, access network device 120 or core network device 130 or a module (such as a chip) thereof in the communication system. Figure 1A Hezhi Figure 2 The terminal device 110, the access network device 120 or the core network device 130 or its module (such as a chip) in FIG. 1 to FIG. Figure 8 Any of the communication methods shown in .

[0227] The present disclosure also provides a circuit which can be coupled to a memory and can be used to execute the method described in any of the above method embodiments. Figure 1A to Figure 2 The process related to the terminal device 110, the access network device 120 or the core network device 130 or its module (such as chip) in the chip system. The chip system may include the chip, and may also include other components such as a memory or a transceiver.

[0228] It should be understood that the processor mentioned in the embodiments of the present disclosure may be a CPU, or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0229] It should also be understood that the memory mentioned in the embodiments of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (doubledatarate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM), and direct rambus RAM (DR RAM).

[0230] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, the memory (storage module) is integrated in the processor.

[0231] It should be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0232] It should be understood that in the various embodiments of the present disclosure, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present disclosure.

[0233] Those of ordinary skill in the art will appreciate that the modules and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this disclosure.

[0234] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and modules described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0235] In the several embodiments provided in the present disclosure, it should be understood that the disclosed communication methods and devices can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the module is only a logical function division. There may be other division methods in actual implementation, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0236] The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0237] In addition, each functional module in each embodiment of the present disclosure may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module.

[0238] If the function is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present disclosure can be essentially or the part that makes the contribution or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method of each embodiment of the present disclosure. The aforementioned computer-readable storage medium can be any available medium that can be accessed by a computer. By way of example but not limitation, computer-readable media may include random access memory (RAM), read-only memory (ROM), electrically erasable programmable read only memory (EEPROM), compact disc read-only memory (CD-ROM), universal serial bus flash disk, mobile hard disk, or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer.

[0239] As used herein, the term "including" and similar terms should be understood as open inclusion, i.e., "including but not limited to". The term "based on" should be understood as "based at least in part on". The term "one embodiment" or "the embodiment" should be understood as "at least one embodiment". The terms "first", "second", etc. can refer to different or identical objects, and are only used to distinguish the objects referred to, without implying a specific spatial order, temporal order, order of importance, etc. of the objects referred to. In some embodiments, values, processes, selected items, determined items, equipment, devices, means, components, assemblies, etc. are referred to as "best", "lowest", "highest", "minimum", "maximum", etc. It should be understood that such descriptions are intended to indicate that a selection can be made among many available functional options, and such selections do not need to be better, lower, higher, smaller, larger or otherwise preferred than other options in other aspects or all aspects. As used herein, the term "determine" can cover a variety of actions. For example, "determine" can include calculation, calculation, processing, export, investigation, search (e.g., search in a table, database or another data structure), ascertainment, etc. Additionally, "determining" may include receiving (eg, receiving information), accessing (eg, accessing data in a memory), etc. Furthermore, "determining" may include resolving, selecting, choosing, establishing, etc.

[0240] The above is only a specific implementation of the present application, but the protection scope of the embodiments of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the embodiments of the present application, which should be included in the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application shall be based on the protection scope of the claims.

Claims

1. A method comprising: The terminal device in an idle state or an inactive state receives indication information for indicating a sensing capability requirement; as well as Based on determining that the terminal device meets the perception capability requirement, connection establishment or connection recovery is initiated.

2. The method according to claim 1, further comprising: In response to receiving a connection establishment message or a connection recovery message, sending the sensing capability information of the terminal device; or In response to receiving a first request message for requesting the perception capability information, sending the perception capability information of the terminal device.

3. The method according to claim 1 or 2, wherein the perception capability requirement comprises at least one of the following: perception type, perception range, perception resolution or perception accuracy. 4 . The method according to claim 1 , wherein the indication information is included in a paging message.

5. The method according to any one of claims 1 to 4, further comprising: Sending information related to the location of the terminal device.

6. The method according to any one of claims 1 to 5, further comprising: Receiving configuration information and state transition information related to the sensing process, wherein the state transition information is used to indicate that the terminal device switches from a connected state to an idle state or an inactive state; Based on the state transition information, transition from the connected state to the idle state or the inactive state; as well as After the transition to the idle state or the inactive state, the sensing process is performed based on the configuration information.

7. A method comprising: The access network device sends indication information for indicating a sensing capability requirement to a terminal device in an idle state or an inactive state; as well as A connection establishment request message or a connection recovery request message is received from the terminal device.

8. The method according to claim 7, further comprising: Based on sending a connection establishment message or a connection recovery message to the terminal device, receiving the sensing capability information of the terminal device from the terminal device; or Based on sending a first request message for requesting the sensing capability information to the terminal device, the sensing capability information of the terminal device is received from the terminal device.

9. The method according to claim 7 or 8, wherein the perception capability requirement comprises at least one of the following: perception type, perception range, perception resolution or perception accuracy.

10. The method according to any one of claims 7 to 9, wherein the indication information is included in a paging message.

11. The method according to any one of claims 7 to 10, wherein the indication information is first indication information, and the method further comprises: Second indication information for indicating the perception capability requirement is received from a core network device, wherein the first indication information is determined according to the second indication information.

12. The method according to any one of claims 7 to 11, further comprising: Send the perception capability information of the terminal device to the core network device.

13. The method according to claim 11 or 12, further comprising: receiving information related to the location of the terminal device from the terminal device; as well as Send information related to the location of the terminal device to the core network device.

14. The method according to any one of claims 11 to 13, further comprising: An indication of at least one terminal device for performing a sensing process is received from the core network device, the at least one terminal device including the terminal device.

15. The method according to claim 14, further comprising: Configuration information and state transition information related to the perception process are sent to the terminal device, where the state transition information is used to instruct the terminal device to transition from the connected state to an idle state or an inactive state.

16. A method comprising: Sending second indication information or a second request message, wherein the second indication information is used to indicate a perception capability requirement, and the second request message is used by at least one access network device to determine a terminal device for performing the perception process; as well as Receive a response message to the second indication information or the second request message.

17. The method according to claim 16, further comprising: determining the at least one access network device for performing the sensing process; Determine a first group of terminal devices, which are connected to the at least one access network device and can be used to perform the sensing process; The second indication information is sent based on determining that the number of terminal devices in the first group is lower than a threshold number.

18. The method according to claim 16 or 17, wherein the second indication information is used to request at least one of the following: sensing capability information of a terminal device in an idle state or an inactive state, or information related to the location of the terminal device, The sensing capability requirement includes at least one of the following: sensing type, sensing range, sensing resolution or sensing accuracy, and The response message to the second indication information includes at least one of the following: the perception capability information, information related to the location of the terminal device, or an indication of the at least one access network device.

19. The method according to claim 18, further comprising: Based on the sensing capability information, determining at least one terminal device for performing the sensing process, the at least one terminal device being associated with the at least one access network device; as well as An indication of the at least one terminal device is sent.

20. The method of claim 16, further comprising: Determine the at least one access network device used to perform the perception process, wherein the second request message is used by the at least one access network device to determine the terminal device used to perform the perception process.

21. A communication device, comprising: A unit or module for executing the method according to any one of claims 1 to 6, or a unit or module for executing the method according to any one of claims 7 to 15, or a unit or module for executing the method according to any one of claims 16 to 20.

22. A communication device, comprising: A processor configured to execute the method according to any one of claims 1 to 6, or configured to execute the method according to any one of claims 7 to 15, or configured to execute the method according to any one of claims 16 to 20.

23. A computer-readable storage medium storing instructions, which, when executed by a device, causes the device to perform a method according to any one of claims 1 to 6, or causes the device to perform a method according to any one of claims 7 to 15, or causes the device to perform a method according to any one of claims 16 to 20.

24. A computer program product, comprising instructions, which, when executed by a device, cause the device to perform the method according to any one of claims 1 to 6, or cause the device to perform the method according to any one of claims 7 to 15, or cause the device to perform the method according to any one of claims 16 to 20.

25. A communication system comprising: A communication device for executing the method according to any one of claims 1 to 6, and A communication device for performing the method according to any one of claims 7 to 15.

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