Communication method, terminal, device and storage medium

Abstract

The present disclosure relates to a communication method, a terminal, a device, and a storage medium. The method comprises: receiving first information sent by a network device, and entering a radio resource control (RRC) connected state from an RRC idle state or an RRC inactive state, wherein the terminal is a terminal that expects to participate in or has participated in a sensing task. In the method of the present disclosure, after receiving the first information from the network device, the terminal can be waken up or respond in a timely manner, helping to improve the efficiency of ISAC communication.

Description

Communication Method, Terminal, Device and Storage Medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular, to a communication method, a terminal, a device, and a storage medium. Background Art

[0002] Integrated Sensing And Communication (ISAC) technology can utilize sensing technology in a communication system to obtain information about a sensing target or a reflector. In ISAC, a transmitting device can transmit radio waves, and a receiving device receives the radio waves. Based on the changes in the radio waves caused by being blocked by the sensing target or the reflector during transmission, relevant information about the sensing target or the reflector is determined.

[0003] Summary of the Invention

[0004] In ISAC technology, a terminal is used as a receiving end or a transmitting end, but the terminal may or may not be in a state where it can perform ISAC tasks.

[0005] Embodiments of the present disclosure provide a communication method, a terminal, a device, and a storage medium.

[0006] In a first aspect, an embodiment of the present disclosure provides a communication method, which is executed by a terminal. The method includes:

[0007] Receiving first information sent by a network device and entering the Radio Resource Control (RRC) connected state from the RRC idle state or the RRC inactive state; wherein, the terminal is a terminal that expects to participate in or is participating in a sensing task.

[0008] In a second aspect, an embodiment of the present disclosure provides a communication method, which is executed by a network device. The method includes:

[0009] Sending first information to a terminal, the first information being used to cause the terminal to enter the RRC connected state from the RRC idle state or the RRC inactive state, and the terminal is a terminal that expects to participate in or is participating in a sensing task.

[0010] In a third aspect, an embodiment of the present disclosure provides a terminal, including:

[0011] A transceiver module, configured to receive first information sent by a network device;

[0012] A processing module, configured to enter the RRC connected state from the RRC idle state or the RRC inactive state; wherein, the terminal is a terminal that expects to participate in or is participating in a sensing task.

[0013] In a fourth aspect, an embodiment of the present disclosure provides a network device, including:

[0014] A transceiver module, configured to send a first message to a terminal, where the first message is used to cause the terminal to enter the RRC connected state from the RRC idle state or the RRC inactive state, and the terminal is a terminal that expects to participate in or participates in a sensing task.

[0015] In a fifth aspect, an embodiment of the present disclosure provides a communication device, including:

[0016] One or more processors;

[0017] Wherein, the communication device is configured to implement the method described in the first aspect.

[0018] In a sixth aspect, an embodiment of the present disclosure provides a communication device, including:

[0019] One or more processors;

[0020] Wherein, the communication device is configured to implement the method described in the second aspect

[0021] In a seventh aspect, an embodiment of the present disclosure provides a communication system, including a terminal and a network device, wherein,

[0022] The terminal is configured to implement the method described in the first aspect;

[0023] The network device is configured to implement the method described in the second aspect.

[0024] In an eighth aspect, an embodiment of the present disclosure provides a storage medium, where the storage medium stores instructions, wherein,

[0025] When the instructions run on a communication device, the communication device is caused to execute the method described in the first aspect or the second aspect.

[0026] In a ninth aspect, an embodiment of the present disclosure provides a program product, wherein,

[0027] When the program product is executed by a communication device, the communication device is caused to execute the method described in the first aspect or the second aspect.

[0028] In the embodiments of the present disclosure, after receiving the first message from the network device, the terminal can be woken up from the RRC idle state or the inactive state in a timely manner, facilitating a timely response to the network device in the RRC connected state, which is conducive to improving the efficiency of ISAC communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following introduces the drawings required for the description of the embodiments. The following drawings are only some embodiments of the present disclosure and do not specifically limit the protection scope of the present disclosure.

[0030] FIG. 1a to FIG. 1b are an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0031] FIG. 2a to FIG. 2c are an exemplary interaction schematic diagram of a method provided according to an embodiment of the present disclosure;

[0032] FIG. 3a is a schematic structural diagram of a terminal shown according to an embodiment of the present disclosure;

[0033] FIG. 3b is a schematic structural diagram of a network device shown according to an embodiment of the present disclosure;

[0034] FIG. 4a is a schematic diagram of a communication device shown according to an embodiment of the present disclosure;

[0035] FIG. 4b is a schematic diagram of a communication device shown according to an embodiment of the present disclosure. DETAILED IMPLEMENTATION MANNER

[0036] Embodiments of the present disclosure provide a communication method, a terminal, a device, and a storage medium.

[0037] In a first aspect, embodiments of the present disclosure provide a communication method, which is executed by a terminal, and the method includes:

[0038] Receiving first information sent by a network device, and entering the RRC connected state from the Radio Resource Control (RRC) idle state or the RRC inactive state; wherein, the terminal is a terminal that expects to participate in or participates in a sensing task.

[0039] In the above embodiment, after receiving the first information from the network device, the terminal can be woken up from the RRC idle state or the inactive state in time, facilitating timely response to the network device in the RRC connected state, which is beneficial to improving the efficiency of ISAC communication.

[0040] Combined with the embodiment of the first aspect, in some embodiments, the first information includes at least one of the following:

[0041] A terminal identifier corresponding to the terminal;

[0042] A paging reason corresponding to the sensing task;

[0043] wherein, the terminal is a terminal participating in the sensing task.

[0044] Combined with the embodiment of the first aspect, in some embodiments, the method further includes:

[0045] Determining whether to preferentially process the sensing task according to the first information.

[0046] Combined with the embodiment of the first aspect, in some embodiments, the first information includes:

[0047] The identifier corresponding to the sensing task;

[0048] Among them, the terminal has participated in the sensing task before receiving the first information;

[0049] The method further includes: after entering the RRC connected state, resuming participation in the sensing task.

[0050] Combined with the embodiments of the first aspect, in some embodiments, the first information includes at least one of the following:

[0051] The task information of the sensing task;

[0052] The terminal information corresponding to the terminal expecting to participate in the sensing task.

[0053] Combined with the embodiments of the first aspect, in some embodiments, the task information of the sensing task includes at least one of the following:

[0054] The sensing mode of the sensing task;

[0055] The sensing role required by the sensing task;

[0056] The category of the sensing task;

[0057] The identifier corresponding to the sensing task;

[0058] The area information corresponding to the sensing task.

[0059] Combined with the embodiments of the first aspect, in some embodiments, the terminal information includes at least one of the following:

[0060] Terminal type;

[0061] The capabilities related to the sensing task.

[0062] Combined with the embodiments of the first aspect, in some embodiments, the method further includes:

[0063] After entering the RRC connected state, sending a second information to the network device, and the second information is used to indicate the terminal capabilities of the terminal.

[0064] Combined with the embodiments of the first aspect, in some embodiments, the terminal capabilities are used to indicate at least one of the following capabilities related to the sensing task:

[0065] Supported sensing mode;

[0066] Supported sensing role;

[0067] Supported sensing service.

[0068] Combined with the embodiments of the first aspect, in some embodiments, the terminal capabilities include at least one of the following:

[0069] The power of the terminal;

[0070] The time when the terminal supports participating in the sensing task;

[0071] The computing power of the terminal;

[0072] The trajectory information of the terminal.

[0073] Combined with the embodiments of the first aspect, in some embodiments, the method further includes:

[0074] Receiving the third information sent by the network device, where the third information is used to indicate that the terminal participates in the sensing task.

[0075] Combined with the embodiments of the first aspect, in some embodiments, the first information is sent through one of the following:

[0076] Paging message;

[0077] Paging Downlink Control Information (DCI);

[0078] System Information (SI).

[0079] In a second aspect, an embodiment of the present disclosure provides a communication method, which is executed by a network device, and the method includes:

[0080] Sending first information to the terminal, where the first information is used to cause the terminal to enter the RRC connected state from the RRC idle state or the RRC inactive state, and the terminal is a terminal that expects to participate in or participates in the sensing task.

[0081] Combined with the embodiments of the second aspect, in some embodiments, the first information includes at least one of the following:

[0082] The terminal identifier corresponding to the terminal;

[0083] The paging cause corresponding to the sensing task;

[0084] Wherein, the terminal is the terminal participating in the sensing task.

[0085] Combined with the embodiments of the second aspect, in some embodiments, the first information includes:

[0086] The task identifier of the sensing task; <00​​​​​

[0089] Task information of the sensing task

[0090] Terminal information corresponding to the terminal expecting to participate in the sensing task

[0091] Combined with the embodiments of the second aspect, in some embodiments, the task information of the sensing task includes at least one of the following:

[0092] Sensing mode of the sensing task

[0093] Sensing role required by the sensing task

[0094] Category of the sensing task

[0095] Identifier corresponding to the sensing task

[0096] Region information corresponding to the sensing task

[0097] Combined with the embodiments of the second aspect, in some embodiments, the terminal information includes at least one of the following:

[0098] Terminal type

[0099] Abilities related to the sensing task

[0100] Combined with the embodiments of the second aspect, in some embodiments, the method further includes:

[0101] Receiving a second message sent by the terminal, where the second message is used to indicate the terminal capabilities

[0102] Combined with the embodiments of the second aspect, in some embodiments, the terminal capabilities are used to indicate at least one of the following abilities related to the sensing task:

[0103] Supported sensing mode

[0104] Supported sensing role

[0105] Supported sensing service

[0106] Combined with the embodiments of the second aspect, in some embodiments, the terminal capabilities include at least one of the following:

[0107] Battery power of the terminal

[0108] Time when the terminal supports participating in the sensing task

[0109] Computing power of the terminal

[0110] Trajectory information of the terminal

[0111] Combined with the embodiments of the second aspect, in some embodiments, the method further includes:

[0112] A third message is sent to the terminal, which is used to instruct the terminal to participate in the sensing task.

[0113] In conjunction with the embodiments of the second aspect, in some embodiments, the first information is sent via one of the following:

[0114] Paging messages;

[0115] Paging Downlink Control Information (DCI);

[0116] System information.

[0117] Thirdly, embodiments of this disclosure provide a terminal, including:

[0118] The transceiver module is used to receive the first information sent by the network device;

[0119] The processing module is used to enter the RRC connected state from the RRC idle state or the RRC inactive state by the radio resource control; wherein, the terminal is a terminal that expects to participate in or participates in the sensing task.

[0120] Fourthly, embodiments of this disclosure provide a network device, including:

[0121] The transceiver module is used to send first information to the terminal, which is used to cause the terminal to enter the RRC connected state from the Radio Resource Control (RRC) idle state or the RRC inactive state. The terminal is a terminal that expects to participate in or participates in a sensing task.

[0122] Fifthly, embodiments of this disclosure provide a communication device, including:

[0123] One or more processors;

[0124] The communication device is configured to implement the method described in the first aspect.

[0125] Sixthly, embodiments of this disclosure provide a communication device, including:

[0126] One or more processors;

[0127] The communication device is configured to implement the method described in the second aspect.

[0128] In a seventh aspect, embodiments of this disclosure provide a communication system, including a terminal and a network device, wherein,

[0129] The terminal is configured to implement the method as described in the first aspect;

[0130] The network device is configured to implement the method as described in the second aspect.

[0131] Eighthly, embodiments of this disclosure provide a storage medium storing instructions, wherein...

[0132] When the instructions are executed on the communication device, the communication device causes the communication device to perform the method as described in the first aspect or the second aspect.

[0133] Ninthly, embodiments of this disclosure provide a program product, wherein,

[0134] When the program product is executed by a communication device, the communication device performs the method as described in the first aspect or the second aspect.

[0135] In a tenth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in alternative implementations of the first and second aspects.

[0136] Eleventhly, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described according to optional implementations of the first and second aspects above.

[0137] It is understood that the aforementioned terminals, network devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0138] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0139] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0140] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0141] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0142] In the embodiments disclosed herein, "multiple" refers to two or more.

[0143] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0144] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0145] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0146] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0147] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0148] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0149] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0150] In some embodiments, the apparatus and device may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "body", etc.

[0151] In some embodiments, "network" can be interpreted as devices included in a network, such as access network devices, core network devices, etc.

[0152] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)," "base station (BS)," "radio base station," or "fixed station." In some embodiments, it may also be understood as "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," or "bandwidth part (BWP)."

[0153] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," etc.

[0154] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0155] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0156] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0157] Figures 1a and 1b are schematic diagrams illustrating the architecture of a communication system 100 according to embodiments of the present disclosure.

[0158] As shown in Figure 1a, the communication system 100 includes a terminal 101 and a network device 102.

[0159] In some embodiments, terminal 101 includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0160] In some embodiments, network device 102 may include at least one of access network device, core network device, and sensing function node. The sensing function node may be a sensing function control (SF-C) node, which may be a separate node or a functional entity located within the core network device; this disclosure does not limit the specific type of SF-C node.

[0161] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, a base station in a 5G communication system, an evolved NodeB (eNB), a next-generation eNB (ng-eNB), a next-generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open RAN, a cloud RAN, a base station in other communication systems, and an access node in a wireless fidelity (WiFi) system.

[0162] The access network equipment can be composed of a central unit (CU) and a distributed unit (DU). The CU can also be called a control unit. The CU-DU structure can separate the protocol layer of the access network equipment. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU, which is centrally controlled by the CU. However, this is not the only option.

[0163] In some embodiments, the aforementioned core network equipment may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of the Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC). Alternatively, core network equipment may refer to network elements with specific functions, such as Access Management Function (AMF), Service Management Function (SMF), Sensing Function (SF), or Sensing Network Function (SNF).

[0164] As shown in Figure 1b, in the ISAC communication system, communication system 100 includes a transmitting device 1101, a receiving device 1102, and a reflector (or sensing target) 1103. The transmitting device 1101 is the wireless signal transmitter, used to transmit radio waves or sensing reference signals. The receiving device 1102 is the wireless signal receiver, used to receive radio waves or sensing reference signals. During the transmission of radio waves or sensing reference signals, the transmission may be blocked by objects (such as the reflector 1103), resulting in wireless transmission effects such as reflection, diffraction, transmission, phase change, Doppler shift, and signal strength change. The receiving device 1102 receives radio waves and compares the transmitted and received signals, or records the historical changes in the received signal, thereby obtaining relevant information about the reflector 1103, such as its coordinates, velocity, signal strength, or behavioral patterns.

[0165] In some embodiments, terminal 101 can be used as a receiving device 1102 of ISAC, and network device 102 can be used as a transmitting device 1101 of ISAC; or, terminal 101 can be used as a transmitting device 1101 of ISAC, and network device 102 can be used as a receiving device 1102 of ISAC.

[0166] In some embodiments, the transmitting device 1101 and the receiving device 1102 may be the same device or different devices.

[0167] In some embodiments, when the transmitting device 1101 and the receiving device 1102 are co-located, this sensing method or mode can be referred to as mono-static sensing. When the transmitting device 1101 and the receiving device 1102 are not co-located, this sensing method or mode can be referred to as bi-static sensing.

[0168] In single-station sensing, the transmitting device 1101 and the receiving device 1102 can be the same device, as shown in the sensing methods or modes (1) and (5) below or in Table 1-1. In dual-station sensing, the transmitting device 1101 and the receiving device 1102 can be different devices, as shown in the sensing methods or modes (2), (3), (4), and (6) in Table 1-1.

[0169] Mode (1): Base station transmits and receives signals, such as base station A transmitting wireless signals or radio waves and base station A receiving wireless signals.

[0170] Mode (2): Base station A sends and base station B receives. For example, base station A sends a wireless signal and base station B receives the wireless signal.

[0171] Mode (3): Base station sends, terminal receives. For example, base station A sends a wireless signal, and terminal A receives the wireless signal.

[0172] Mode (4): Terminal sends, base station receives. For example, terminal A sends a wireless signal and base station A receives the wireless signal.

[0173] Mode (5): Terminal self-transmission and self-reception, such as terminal A sending wireless signals and terminal A receiving wireless signals.

[0174] Mode (6): Terminal A sends and Terminal B receives. For example, Terminal A sends a wireless signal and Terminal B receives the wireless signal.

[0175] Table 1-1

[0176] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0177] It is understood that the communication system described in the embodiments of this disclosure is for the purpose of more clearly illustrating the technical solutions of the embodiments of this disclosure, and does not constitute a limitation on the technical solutions provided in the embodiments of this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this disclosure are also applicable to similar technical problems.

[0178] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1a or FIG1b, or to a part thereof, but are not limited thereto.

[0179] The entities shown in Figure 1a or Figure 1b are illustrative. The communication system may include all or some of the entities in Figure 1a or Figure 1b, or it may include other entities besides those in Figure 1a. The number and form of each entity are arbitrary. The connection relationship between the entities is illustrative. The entities may not be connected to each other or may be connected in any way. The connection may be direct or indirect, wired or wireless.

[0180] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication processing methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0181] Sensing technologies encompass a variety of types, such as lidar, millimeter-wave radar, cameras, sonar detection, infrared detection, and cellular network sensing. Camera-based sensing technologies include any of the following: visual cameras and time-of-flight (TOF) cameras. Cellular network sensing can be based on 4G (e.g., LTE), 5G (e.g., NR), or 6G cellular network technologies. This cellular network sensing technology includes any of the following: communication base station sensing and communication terminal sensing.

[0182] Depending on the type of sensing device, the information that can be obtained about the reflector or target object includes at least one of the following:

[0183] Coordinate information, such as coordinates relative to the wireless signal receiver (e.g., distance, horizontal angle, and vertical angle).

[0184] Speed ​​information, such as the speed and direction of movement relative to the wireless signal receiver.

[0185] Signal strength.

[0186] Behavioral pattern information, such as movement information like running, walking, approaching, falling, and swinging.

[0187] Weather information, such as rain, snow, etc.

[0188] Traffic information, such as congestion and accidents.

[0189] In ISAC technology, a terminal can participate in sensing tasks as a receiver (such as a receiving device) or a sender (such as a sending device) of ISAC communication. However, the terminal may be in an RRC idle state (RRC_IDLE) or an RRC inactive state (RRC_INACTIVE) and cannot participate in sensing tasks.

[0190] To facilitate the establishment of awareness tasks on the network side, network devices need to employ appropriate methods to page terminals into RRC connection mode. Furthermore, how to page suitable terminals into RRC connection mode to establish awareness tasks is also a problem that needs to be solved.

[0191] Figure 2a is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2a, the present disclosure relates to a communication method, which includes:

[0192] In step S2101, network device 102 sends the first information.

[0193] In some embodiments, the first information is used to determine the terminal participating in the sensing task, or the first information includes information for indicating the terminal participating in the sensing task.

[0194] Optionally, the first information may directly instruct one or more terminals participating in the sensing task.

[0195] Optionally, the first information may implicitly indicate one or more terminals participating in the sensing task, such as indicating the conditions or parameters that the terminals participating in the sensing task need to meet.

[0196] Optionally, the name of the first information is for illustrative purposes; for example, it may also be called instruction information.

[0197] In some embodiments, the first information is sent via one of the following:

[0198] Paging message;

[0199] Paging DCI (Downlink Control Information);

[0200] System information.

[0201] For example, network device 102 sends a paging message, which carries the first information. Alternatively, network device 102 sends a paging DCI, carrying the first information through the short message field of the paging DCI. Or, network device 102 sends a system information block SIB1, carrying the first information through the system information block SIB1.

[0202] In one example, when sending the first information via paging (paging message or paging DCI), sensing-related paging can use the same signaling and the same paging occasion (PO) as legacy paging. Alternatively, sensing-specific paging or a dedicated search space can be initiated on a sensing-specific PO. Both of these methods can be seen in the following Information Element (IE):

[0203] It is worth noting that regular paging can wake up a terminal to enter the RRC connection state to start a certain service through paging messages, or paging a terminal participating in a certain service to return to the RRC connection state; or in Multicast Broadcast Service (MBS), paging messages can be used to paging a terminal participating in this MBS service to enter the RRC connection state.

[0204] In some embodiments, the first information includes at least one of the following:

[0205] Perceive task information;

[0206] The terminal information expected to be used by terminals participating in the sensing task, or the terminal information that terminals capable of participating in the sensing task should meet or conform to.

[0207] Optionally, the first information may be a sensing indicator, which indicates relevant information or conditions for the sensing task, thereby implicitly indicating or identifying terminals that can participate in the sensing task.

[0208] Optionally, the task information for the perception task includes at least one of the following:

[0209] Perceptual patterns for perceptual tasks;

[0210] A perceptive role that perceives the needs of a task;

[0211] The category of the perception task;

[0212] The identifier corresponding to the perception task;

[0213] Perceive the area information corresponding to the task.

[0214] The sensing mode can be any one or more of the modes shown in Table 1-1. For example, the sensing mode can be terminal self-transmission and self-reception, base station transmission and terminal reception, or terminal transmission and base station reception, etc.

[0215] The perception role can refer to the receiving or transmitting device in IASC communication, or the receiving end or the transmitting end.

[0216] The categories of perception tasks can be divided into: high-precision map building, road monitoring, intrusion detection, vehicle perception (e.g., smart parking, obstacle vision assistance, autonomous driving), non-human perception (e.g., unmanned aerial vehicle monitoring, unmanned aerial vehicle flight management, flight intrusion detection), home intrusion detection, elderly health monitoring, etc. Alternatively, perception tasks can be categorized into different types such as distance perception, speed perception, and angle perception.

[0217] The identifier corresponding to the perception task can include a task identifier (task id) or a service identifier (service id).

[0218] The area information corresponding to the sensing task can indicate whether the sensing area is a relative area or a fixed area. This area information helps the terminal determine whether it is suitable to participate in the sensing task. For example, if the terminal determines, based on historical trajectory information, that it is temporarily present in the area, it will not participate in the sensing task.

[0219] Network device 102 sends out first information to indicate the task information of the sensing task, so that different terminals can determine whether they support the first information indication or the corresponding sensing task after receiving the first information.

[0220] Optionally, the terminal information includes at least one of the following:

[0221] Terminal type;

[0222] Abilities related to perception tasks.

[0223] The terminal type can be a roadside unit, a commercial terminal, a vehicle, a drone, a camera device, etc. Alternatively, the terminal type can refer to terminals with different user consent, terminals registered for different services, or authorized terminals. For example, the terminal type indicates a terminal providing sensing services, or a terminal that has registered for sensing services, or a terminal authorized to provide sensing services. The terms "terminal type" and "user consent" are interchangeable.

[0224] Among them, user consent can be divided into the following dimensions: (1) consent to participate in perception tasks, which can be any perception task, any role (receiver or sender), etc.; (2) consent to participate in a certain type of perception task; (3) consent to participate in a specific perception subtask of the perception task, such as being associated with a specific service identifier (service id), that is, not all perception tasks are participated in.

[0225] Capabilities related to the sensing task can, for example, instruct network device 102 to require or expect sensing capabilities from terminals participating in the sensing task. For instance, requiring a specific dimension agreed upon by the user.

[0226] Network device 102 can send out first information to indicate the terminal information required for the terminals participating in the sensing task. For example, if the first information indicates that the terminal type is "vehicle," it means that the terminal required by network device 102 in this sensing task is of the vehicle type. Thus, after receiving the first information, different terminals can determine whether their own type is compatible.

[0227] In some embodiments, network device 102 may send the first information on different cells.

[0228] In some embodiments, network device 102 may broadcast the first information.

[0229] In some embodiments, the sensing task may be initiated by the network device 102 or a terminal, requiring terminal participation. The network side can instruct the relevant terminal to enter the RRC connection state through the first information. Alternatively, the sensing task may be initiated by a third party targeting a specific area. The third party may be an application layer other than the network device or terminal, such as Operation, Maintenance and Management (OAM). For example, when a risk is detected (e.g., information about stones on the road), the sensing result can be sent to a nearby terminal. In this case, the network side needs to page the terminal to enter the RRC connection state to send the sensing result to the terminal. Alternatively, the sensing result can be sent to the terminal via Mobile Termination Small Data Transmission (MT SDT).

[0230] In some embodiments, one or more terminals in the RRC idle state or RRC inactive state can listen to the first information. The first information can be used to wake up some or all of the terminals in the RRC idle state or RRC inactive state, causing these terminals to switch to the RRC connected state, as described in step S2102.

[0231] In step S2102, terminal 101 enters the RRC connected state from the RRC idle state or the RRC inactive state.

[0232] In some embodiments, in this step, the terminal that transitions from the RRC idle state or the RRC inactive state to the RRC connected state can be any terminal that received the first information mentioned above; or, the terminal that transitions from the RRC idle state or the RRC inactive state to the RRC connected state is a terminal that meets certain conditions or network instructions.

[0233] Optionally, the terminal 101 in this step is either a terminal that expects to participate in the sensing task or a terminal that participates in the sensing task. Here, expecting to participate in the sensing task can be understood as the terminal 101 being able to or supporting participation in the sensing task.

[0234] Optionally, in some embodiments of this disclosure, the process of transitioning from an RRC idle state or an RRC inactive state to an RRC connected state is described as a wake-up.

[0235] In some embodiments, the content indicated by the network device 102 in the first information includes relevant information about the sensing task that requires terminal participation (such as the task information of the aforementioned sensing task), and relevant information that the terminal that can participate in the sensing task can satisfy (such as the terminal information corresponding to the aforementioned terminal participating in the sensing task).

[0236] In some embodiments, after receiving the first information, the terminal 101, which is in the RRC idle state or the RRC inactive state, can determine whether it should enter the RRC connected state. For example, the terminal 101 can determine whether it supports or is able to participate in the sensing task indicated in the first information, and / or determine whether it meets or conforms to the terminal information indicated in the first information, based on the content indicated in the first information, and then determine whether to enter the RRC connected state.

[0237] For example, when terminal 101 is able to participate in the sensing task indicated in the first information, and / or satisfies the terminal information indicated in the first information, it executes step S2102, that is, it enters the RRC connected state from the RRC idle state or the RRC inactive state.

[0238] In one example, terminal 101 in this step is a terminal that meets one or more of the following criteria: supports awareness functions, supports awareness mode, can assume the awareness role required by network devices, and has signed user consent or service agreements. Terminal 101 can enter RRC connected state and wait for selection by the network side. The granularity of user consent and service agreements is the same or similar.

[0239] In another example, if a terminal determines, based on the first information, that it is not suitable for the sensing task indicated in the first information, it will not participate in the sensing task and will not need to enter the RRC connection state. For example, in conjunction with the aforementioned embodiments, if a terminal determines, based on historical trajectory information, that it is temporarily located in the area indicated by the area information corresponding to the sensing task, it will not participate in the sensing task, and the terminal in this example may not need to execute step S2102.

[0240] In some embodiments, there may be one or more terminals 101 entering the RRC connection state in this step. For example, multiple terminals 101 may enter the RRC connection state after receiving the first information and supporting the sensing task in the first information or conforming to the terminal information in the first information.

[0241] In step S2103, terminal 101 sends the second information to the network device.

[0242] In some embodiments, terminal 101 may send second information after entering the RRC connection state.

[0243] Optionally, when there are multiple terminals 101 in the connected state, in conjunction with the description of the foregoing embodiments, the multiple terminals 101 can each send their own corresponding second information.

[0244] In some embodiments, the second information is used to indicate the terminal's terminal capabilities.

[0245] In some embodiments, the second information may be capability information or indication information, etc.

[0246] In some embodiments, terminal capabilities may include sensing capabilities related to perception.

[0247] For example, terminal capabilities are used to indicate at least one of the following capabilities related to perception tasks:

[0248] Supported perception modes;

[0249] Supported perception roles;

[0250] Supported perception services.

[0251] Among them, the sensing modes supported by the terminal can be one or more of those in Table 1-1. The sensing role supported by the terminal can be as a receiving device or a transmitting device in ISAC communication, or as a receiving end or a sending end in ISAC communication. The sensing services supported by the terminal can refer to user consent related to sensing, such as (1) consent to participate in sensing tasks, which can be any sensing task, any role (receiving end or sending end), etc.; (2) consent to participate in a certain type of sensing task; (3) consent to participate in a specific sensing sub-task of the sensing task, such as being associated with a specific service identifier, i.e., not participating in all sensing tasks.

[0252] In some embodiments, terminal capabilities may include the aforementioned sensing capabilities, and may also include other terminal capabilities, such as processing power or battery life. For example, terminal capabilities may include at least one of the following:

[0253] The terminal's battery level;

[0254] The time that the terminal can participate in sensing tasks;

[0255] The computing power of the terminal;

[0256] The trajectory information of the terminal.

[0257] Here, battery level can be the terminal's current remaining power, and the time available for participating in the sensing task can be the period or duration during which the terminal can participate in the sensing task; optionally, battery level and the time available for participating in the sensing task can, to some extent, represent the terminal's battery life. The terminal's trajectory information can be the terminal's historical trajectory information before receiving the first information.

[0258] In some embodiments, the capability information reported by the terminal is used to assist the network side in selecting terminals to participate in the sensing task.

[0259] In some embodiments, the order of steps S2103 is for illustrative purposes only. For example, before receiving the first information, terminal 101 may also send the second information to report its capabilities to network device 102 to assist the network side in selecting a terminal. In this case, network device 102 may send the first information as described in step S2101; or, in step S2101, it may send the first information to a terminal with sensing capabilities based on the acquired terminal capabilities.

[0260] In some embodiments, the second information can be used by the network device 102 to learn the capabilities of the terminal, facilitating scheduling based on the terminal's capabilities in subsequent sensing tasks or other tasks. For example, if the terminal 101 reports its battery level or the duration it can participate in a sensing task based on the second information, after the terminal 101 participates in the sensing task, the network device 102 can replace the terminal participating in the sensing task after an appropriate duration or suspend the sensing task after an appropriate duration.

[0261] In some embodiments, step S2103 can also be performed separately; for example, the method includes step S2103.

[0262] In step S2104, network device 102 determines the terminals participating in the sensing task.

[0263] In some embodiments, network device 102 makes a decision or selects terminals that participate in the sensing task based on the terminals that send the second information described above.

[0264] For example, based on the second information, network device 102 selects terminals that support the sensing task and have sufficient battery life to participate in the sensing task.

[0265] In step S2105, network device 102 sends third information to terminal 101.

[0266] In some embodiments, based on the selection or filtering in step S2104, network device 102 sends third information to the selected terminal 101.

[0267] In some embodiments, the third information is used to instruct the terminal to participate in a sensing task.

[0268] In some embodiments, the terminal 101 that receives the third information can participate in the sensing task, acting as a sensing receiver or transmitter, communicating with the network device 102 and determining relevant information about the reflector or sensing target.

[0269] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", and "field" can be used interchangeably.

[0270] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or autonomous implementation, among other meanings.

[0271] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transmit,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0272] In some embodiments, the terms “radio”, “wireless”, “radio access network (RAN)”, “access network (AN)”, and “RAN-based” can be used interchangeably.

[0273] In some embodiments, terms such as “moment,” “point in time,” “time,” and “time location” can be used interchangeably, as can terms such as “duration,” “segment,” “time window,” “window,” and “time.”

[0274] In some embodiments, the terms "component carrier (CC)," "cell," "frequency carrier," and "carrier frequency" can be used interchangeably.

[0275] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0276] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (boolean), or by a comparison of numerical values ​​(e.g., a comparison with a predetermined value), but is not limited thereto.

[0277] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the receiver to respond to the sent content.

[0278] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG2a.

[0279] In this embodiment of the disclosure, based on the instructions of the network device, a terminal in the RRC idle state or RRC inactive state can be paged to enter the RRC connected state. The network device can select suitable terminals to participate in the sensing task based on the terminal capabilities, thereby assisting the network side in establishing the sensing task and reducing the impact on other unsuitable terminals (such as terminals that do not meet the sensing requirements can still remain in the RRC idle state or RRC inactive state).

[0280] Figure 2b is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2b, the present disclosure relates to a communication method, which includes:

[0281] In step S2201, terminal 101 sends second information to network device 102.

[0282] In some embodiments, the implementation of step S2201 can be referred to the implementation of step S2103 in FIG2a, and will not be repeated here.

[0283] In some embodiments, the order of steps S2201 can be adjusted. For example, step S2201 can be executed after step S2202, that is, terminal 101 sends the second information after receiving the first information.

[0284] In some embodiments, step S2201 can be performed alone.

[0285] In step S2202, network device 102 sends first information to terminal 101.

[0286] In some embodiments, the implementation of step S2202 may refer to the implementation of step S2101 in FIG2a, or may refer in part to the implementation of step S2101. For example, the content of the first information in step S2202 may differ from the content of the first information in step S2101.

[0287] In some embodiments, the first information includes at least one of the following:

[0288] The terminal identifier corresponding to the terminal;

[0289] The paging cause corresponding to the perception task;

[0290] In this context, the terminal refers to the terminal participating in the sensing task. Specifically, the network device 102, knowing the identifier of the terminal, sends first information to the identified target terminal to instruct the target terminal to enter the RRC connection state and participate in the sensing task in a timely manner.

[0291] Optionally, the terminal identifier can be a 5G-S-Temporary Mobile Station Identifier (TMSI), S-TMSI, or an Inactive Radio Network Temporary Identity (I-RNTI), etc.

[0292] Optionally, the paging reason can be used to indicate a sensing task or the indication information corresponding to a sensing task. For example, an existing paging reason can be expanded to include a range of values, which can then be used to indicate a paging initiated due to a sensing task or sensing purpose.

[0293] Optionally, the first information is carried in a paging message, which may include a terminal identifier; or, the paging message may include both the terminal identifier and the paging reason.

[0294] Understandably, in regular paging, a paging message can be used to wake up a terminal and enter the RRC connection state to start a certain service, such as directly paging a terminal. The 5G-S Temporary Mobile Station Identifier (TMSI) is used to identify the specific paging target terminal, and the terminal participating in a certain service is paging back to the RRC connection state. For example, in Multicast Broadcast Service (MBS), the Temporary Mobile Group Identity (TMGI) is used as a paging identifier to paging terminals participating in this MBS service to enter the RRC connection state.

[0295] In some embodiments, when terminal 101 reports its capabilities, such as sending second information, network device 102 may determine whether to send first information based on the terminal's capability information.

[0296] For example, if the second information of terminal 101 indicates that terminal 101's capabilities are suitable for participating in the sensing task, network device 102 can send first information carrying the terminal identifier of terminal 101. As another example, if the second information of terminal 101 indicates that terminal 101's battery life is insufficient, network device 102 may not send the first information corresponding to terminal 101; or it may still send the first information carrying the terminal identifier of terminal 101, and after participating in the sensing task of adapting to battery life, network device 102 will promptly search for or identify other suitable terminals and send first information carrying the terminal identifiers of those other suitable terminals.

[0297] In some embodiments, terminal 101 receives first information.

[0298] In step S2203, terminal 101 enters the RRC connected state from the RRC idle state or the RRC inactive state.

[0299] In some embodiments, after receiving the first information, the terminal 101 can be promptly woken up and enter the RRC connection state.

[0300] In step S2204, terminal 101 determines whether to prioritize processing the perception task based on the first information.

[0301] In some embodiments, terminal 101 can determine the reason for being paged based on first information, such as the paging reason in the paging message. When the paging reason is a sensing task, terminal 101 can prioritize processing the sensing task. Alternatively, terminal 101 can determine whether to prioritize processing the sensing task based on its own implementation and current state.

[0302] In some embodiments, if terminal 101 determines that it is in a priority sensing task, it can participate in the sensing task in a timely manner to assist the sensing behavior of the network side.

[0303] In some embodiments, the second information can be used by the network device 102 to learn the capabilities of the terminal, facilitating scheduling based on the terminal's capabilities in subsequent sensing tasks or other tasks. For example, if the terminal 101 reports its battery level or the duration it can participate in a sensing task based on the second information, after the terminal 101 participates in the sensing task, the network device 102 can replace the terminal participating in the sensing task after an appropriate duration or suspend the sensing task after an appropriate duration.

[0304] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG2b.

[0305] In this embodiment of the disclosure, the network device can instruct or page the terminal that has been identified as the target so that the corresponding terminal can be woken up in time and enter the RRC connection state, thereby assisting the network side in establishing a sensing task in a timely manner, while reducing the impact on other terminals.

[0306] Figure 2c is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2c, this embodiment of the present disclosure relates to a communication method, which includes:

[0307] In step S2301, network device 102 sends the first information.

[0308] In some embodiments, the implementation of step S2301 may refer to the implementation of step S2101 in FIG2a, or may refer in part to the implementation of step S2101. For example, the content of the first information in step S2301 may differ from the content of the first information in step S2101.

[0309] In some embodiments, the first information includes: an identifier corresponding to the sensing task; wherein the terminal has participated in the sensing task before receiving the first information.

[0310] Optionally, the representation corresponding to the perception task can be a task identifier or a service identifier.

[0311] Optionally, the first information can be sent via a paging message.

[0312] In this embodiment, terminal 101 has participated in a sensing task, such as an intrusion detection sensing task, before entering the RRC idle state or RRC inactive state. After one or more sensing tasks, it enters the RRC idle state or RRC inactive state. If network device 102 needs terminal 101 to perform the same sensing task again, it can page the terminal by sending a first message.

[0313] In one example, if network device 102 needs to change the configuration information of a sensing task, it can enter the RRC connection state by sending a first message to page terminal 101, carrying the task identifier of the sensing task in the first message. After receiving the first message, the terminal participating in the sensing task needs to enter the RRC connection state.

[0314] In step S2302, terminal 101 sends second information to network device 102.

[0315] In some embodiments, the implementation of step S2301 can be referred to the implementation of step S2103 in FIG2a, and will not be repeated here.

[0316] In some embodiments, the second information can be used by the network device 102 to learn the capabilities of the terminal, facilitating scheduling based on the terminal's capabilities in subsequent sensing tasks or other tasks. For example, if the terminal 101 reports its battery level or the duration it can participate in a sensing task based on the second information, after the terminal 101 resumes participation in the sensing task, the network device 102 can replace the terminal participating in the sensing task after an appropriate duration or suspend the sensing task after an appropriate duration.

[0317] In some embodiments, the order of steps S2302 is for illustrative purposes only. For example, they may be performed before step S2301 or after step S2303. Alternatively, step S2302 may be performed independently.

[0318] In step S2303, terminal 101 enters the RRC connected state from the RRC idle state or the RRC inactive state.

[0319] In some embodiments, after receiving the first information, the terminal 101 determines that the task identifier in the first information corresponds to a perception task it has participated in, and can enter the RRC connection state.

[0320] Step S2304: Terminal 101 resumes participation in the perception task.

[0321] In some embodiments, after entering the RRC connection state, the terminal 101 can assist the network side in performing sensing tasks and perform sensing tasks that it has already participated in.

[0322] In some embodiments, other optional implementations may be described before or after the specification corresponding to FIG2c.

[0323] In this embodiment of the present disclosure, the network device can page the terminal that has participated in the sensing task so that the corresponding terminal can be woken up in time and enter the RRC connection state to continue to assist the network side in establishing the sensing task, while reducing the impact on other terminals.

[0324] The method provided in this disclosure allows a valid RRC_IDLE / INACTIVE UE to be paged into the RRC connected state, assisting the network side in establishing a sensing task and reducing the impact on other UEs.

[0325] In this embodiment, for sensing tasks initiated by the network side or other terminal nodes that require terminal participation, such as terminal self-transmission and self-reception, base station transmission and terminal reception, or terminal transmission and base station reception, the network side needs to page the terminal into the RRC_CONNECTED state. Alternatively, for sensing tasks initiated by a third party targeting a specific area, such as risk identification (e.g., information like stones on the road), the sensing results can be sent to nearby UEs. In this case, the UE needs to be paged into a connected state to send the sensing results. Alternatively, the sensing results can be sent to the UE via MT SDT.

[0326] At this point: For the UE (Car) participating in sensing, during the sensing task triggered by the network side, the following example can be referenced:

[0327] Example 1: Paging for UEs without a definite target

[0328] In this embodiment, the UE needs to be paged into the RRC connection state before the network side can select nodes to participate in the sensing task. For example, the paging message carries indication information, such as sensing indication, and / or sensing mode, and / or role information in the sensing mode, and / or the type of sensing task, and / or terminal type, and / or service id or task id, and / or sensing area information (relative area or fixed area), etc.

[0329] At this time, the UE that supports perception and perception mode, can carry the role of UE, and has signed (User consent) / service (the granularity of service is similar to that of user consent) enters the RRC connection state and waits for the network side to select.

[0330] User consent can be divided into several dimensions: (1) consent to participate in perception tasks, which can be any perception task, any role (receiver or sender), etc. (2) consent to participate in a certain type of perception task, (3) participate in a specific perception task at the same time, such as being associated with a specific service ID, not participating in all perception tasks.

[0331] Perception tasks can be categorized as follows: high-precision map building, road monitoring, intrusion detection, vehicle perception (e.g., smart parking, obstacle vision assistance, autonomous driving), non-human perception (e.g., unmanned aerial vehicle monitoring, unmanned aerial vehicle flight management, flight intrusion detection), home intrusion detection, elderly health monitoring, etc.

[0332] The sensing area information is used to help determine whether the UE is suitable to participate in sensing. For example, if the UE is temporarily present in the area based on historical trajectory information, it will not participate in the sensing task.

[0333] Terminal types can include: roadside units, commercial terminals, vehicles, drones, camera devices, etc.

[0334] In this context, "User consent" can be replaced with terminal type, UE providing sensing service, UE registered for such service, or authorized UE, etc.

[0335] In this embodiment, sensing paging and legacy paging can be a single signaling message from the same Product Object (PO). Alternatively, dedicated sensing paging or a dedicated searchspace can be initiated on a sensing-specific PO, as described in the IE example above.

[0336] In this embodiment, the indication information of the sensing mode can be carried in:

[0337] Option 1: paging message;

[0338] Option 2: Short message field in paging DCI;

[0339] Option 3: In system broadcast messages, such as SIB1.

[0340] In this embodiment, after the UE enters RRC_CONNECTED, it can further report the UE's sensing capabilities (e.g., sensing mode, and / or role in sensing mode) and the user consent for participating in sensing. It can also report other UE information, such as remaining UE battery information, time information for participating in sensing, UE computing power information, and UE historical trajectory information, to assist the network side in deciding whether to select the UE to participate in sensing.

[0341] In this embodiment, the UE can determine whether to enter the RRC connection state to participate in sensing based on the auxiliary information carried in the paging message.

[0342] Example 2: Determining the paging of the target UE

[0343] For paging initiated by a identified target UE, the paging message instructs the target UE to enter the RRC connected state to participate in the sensing task. For example, the paging message carries the UE's identifier, such as S-TMSI or I-RNTI, along with indication information indicating the sensing task target. This indication information can be new and can be an extension of the existing pagingCause. For instance, the pagingCause value can indicate a paging initiated for a sensing purpose. The UE can determine whether to prioritize the sensing task based on the paging cause.

[0344] In this embodiment, the UE can determine whether to process the perception task with high priority based on the paging cause.

[0345] Example 3: Wake-up of a user who has already participated in the perception task and temporarily entered RRC_IDLE / INACTIVE

[0346] In this embodiment, if a UE that has participated in a sensing task enters RRC_IDLE / INACTIVE, and the sensing task it is participating in is, for example, an intrusion detection sensing task, the network side can page the UE to enter the RRC connected state if it wants to change the configuration information of the sensing task. At this time, the paging message can carry the sensing task ID. After receiving the paging message, the UE participating in the sensing task ID will enter the RRC connected state.

[0347] In this embodiment, the UE can be woken up and task execution can be resumed based on the perceived task ID.

[0348] This disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0349] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0350] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0351] Figure 3a is a schematic diagram of the terminal structure proposed in an embodiment of this disclosure. As shown in Figure 3a, the terminal 3100 may include at least one of a transceiver module 3101, a processing module 3102, etc. In some embodiments, the transceiver module 3101 is used to receive first information sent by a network device, and the processing module 3102 is used to enter the RRC connected state from the Radio Resource Control (RRC) idle state or the RRC inactive state; wherein, the terminal is a terminal that expects to participate in or participates in a sensing task.

[0352] Optionally, the transceiver module 3101 is used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal 101 in any of the above methods, which will not be described in detail here. Optionally, the processing module 3102 is used to perform at least one of the other steps performed by the terminal 101 in any of the above methods, which will not be described in detail here.

[0353] Figure 3b is a schematic diagram of the network device proposed in an embodiment of this disclosure. As shown in Figure 3b, the network device 3200 may include at least one of a transceiver module 3201, a processing module 3202, etc. In some embodiments, the transceiver module 3201 is used to send first information to a terminal, the first information being used to cause the terminal to enter an RRC connected state from a Radio Resource Control (RRC) idle state or an RRC inactive state, wherein the terminal is a terminal that expects to participate in or participates in a sensing task.

[0354] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0355] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module. Optionally, the processing module may be interchangeable with a processor.

[0356] Figure 4a is a schematic diagram of the structure of the communication device 4100 proposed in an embodiment of this disclosure. The communication device 4100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 4100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0357] As shown in Figure 4a, the communication device 4100 includes one or more processors 4101. The processor 4101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 4100 can be used to execute any of the above methods. Optionally, one or more processors 4101 can be used to invoke instructions to cause the communication device 4100 to execute any of the above methods.

[0358] In some embodiments, the communication device 4100 further includes one or more transceivers 4102. When the communication device 4100 includes one or more transceivers 4102, the transceiver 4102 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 4101 performs at least one of the other steps. In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., can be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0359] In some embodiments, the communication device 4100 further includes one or more memories 4103 for storing data. Optionally, all or part of the memories 4103 may be located outside the communication device 4100. In optional embodiments, the communication device 4100 may include one or more interface circuits 4104. Optionally, the interface circuits 4104 are connected to the memories 4103 and can be used to receive data from the memories 4103 or other devices, and can be used to send data to the memories 4103 or other devices. For example, the interface circuits 4104 can read data stored in the memories 4103 and send the data to the processor 4101.

[0360] The communication device 4100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 4100 described in this disclosure is not limited thereto, and the structure of the communication device 4100 may not be limited by FIG4a. The communication device may be a standalone device or may be part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0361] Figure 4b is a schematic diagram of the structure of chip 4200 according to an embodiment of this disclosure. For cases where the communication device 4100 can be a chip or a chip system, please refer to the schematic diagram of chip 4200 shown in Figure 4b, but it is not limited thereto.

[0362] Chip 4200 includes one or more processors 4201. Chip 4200 is used to perform any of the above methods.

[0363] In some embodiments, chip 4200 further includes one or more interface circuits 4202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 4200 further includes one or more memories 4203 for storing data. Optionally, all or part of the memories 4203 may be located outside chip 4200. Optionally, interface circuit 4202 is connected to memory 4203, and interface circuit 4202 can be used to receive data from memory 4203 or other devices, and interface circuit 4202 can be used to send data to memory 4203 or other devices. For example, interface circuit 4202 can read data stored in memory 4203 and send the data to processor 4201.

[0364] In some embodiments, the interface circuit 4202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method. For example, the interface circuit 4202 performing the communication steps, such as sending and / or receiving, in the above-described method means that the interface circuit 4202 performs data interaction between the processor 4201, the chip 4200, the memory 4203, or the transceiver device. In some embodiments, the processor 4201 performs at least one of the other steps.

[0365] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0366] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 4100, cause the communication device 4100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0367] This disclosure also provides a program product that, when executed by the communication device 4100, causes the communication device 4100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0368] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods. Industrial applicability

[0369] After receiving the first information from the network device, the terminal can be promptly woken up by the RRC idle state or inactive state, which facilitates timely response to the network device in the RRC connected state and helps improve the efficiency of ISAC communication.

Claims

1. A communication method, executed by a terminal, the method comprising: Upon receiving the first information sent by the network device, the terminal enters the RRC connected state from the RRC idle state or the RRC inactive state by the Radio Resource Control (RRC); wherein, the terminal is a terminal that expects to participate in or participates in the sensing task.

2. The method of claim 1, wherein, The first information includes at least one of the following: The terminal identifier corresponding to the terminal; The paging reason corresponding to the aforementioned sensing task; The terminal mentioned above refers to the terminal that participates in the sensing task.

3. The method of claim 2, wherein, The method further includes: Based on the first information, determine whether to prioritize processing the perception task.

4. The method of claim 1, wherein, The first information includes: The identifier corresponding to the perception task; The terminal had already participated in the sensing task before receiving the first information; The method further includes: resuming participation in the sensing task after entering the RRC connection state.

5. The method of claim 1, wherein, The first information includes at least one of the following: The task information of the sensing task; The terminal information corresponding to the terminal expected to participate in the perception task.

6. The method of claim 5, wherein, The task information for the perception task includes at least one of the following: The perception mode of the perception task; The perception role required for the perception task; The categories of the perception tasks; The identifier corresponding to the perception task; The area information corresponding to the perception task.

7. The method of claim 5 or 6, wherein, The terminal information includes at least one of the following: Terminal type; Capabilities related to the perception task.

8. The method of any one of claims 1 to 7, wherein, The method further includes: Send a second message to the network device, the second message being used to indicate the terminal's terminal capabilities.

9. The method of claim 8, wherein, The terminal capability is used to indicate at least one of the following capabilities related to the perception task: Supported perception modes; Supported perception roles; Supported perception services.

10. The method as claimed in claim 8 or 9, wherein, The terminal capabilities include at least one of the following: The terminal's battery level; The terminal supports the time it can participate in the sensing task. The computing power of the terminal; The trajectory information of the terminal.

11. The method of any one of claims 1 or 8 to 10, wherein, The method further includes: The terminal receives third information sent by the network device, the third information being used to instruct the terminal to participate in the sensing task.

12. The method of any one of claims 1 to 11, wherein, The first information is sent via one of the following: Paging messages; Paging Downlink Control Information (DCI); System information.

13. A communication method performed by a network device, the method comprising: Send first information to the terminal, the first information being used to cause the terminal to enter the RRC connected state from the Radio Resource Control (RRC) idle state or the RRC inactive state, the terminal being a terminal that expects to participate in or participates in a sensing task.

14. The method of claim 13, wherein, The first information includes at least one of the following: The terminal identifier corresponding to the terminal; The paging reason corresponding to the aforementioned sensing task; The terminal mentioned above refers to the terminal that participates in the sensing task.

15. The method of claim 13, wherein, The first information includes: The task identifier of the sensing task; The terminal had already participated in the sensing task before receiving the first information.

16. The method of claim 13, wherein, The first information includes at least one of the following: The task information of the sensing task; The terminal information corresponding to the terminal expected to participate in the perception task.

17. The method of claim 16, wherein, The task information for the perception task includes at least one of the following: The perception mode of the perception task; The perception role required for the perception task; The categories of the perception tasks; The identifier corresponding to the perception task; The area information corresponding to the perception task.

18. The method of claim 16 or 17, wherein, The terminal information includes at least one of the following: Terminal type; Capabilities related to the perception task.

19. The method of any one of claims 13 to 18, wherein, The method further includes: The terminal receives second information sent by the terminal, the second information being used to indicate the terminal's capabilities.

20. The method of claim 19, wherein, The terminal capability is used to indicate at least one of the following capabilities related to the perception task: Supported perception modes; Supported perception roles; Supported perception services.

21. The method of claim 19 or 20, wherein, The terminal capabilities include at least one of the following: The terminal's battery level; The terminal supports the time it can participate in the sensing task. The computing power of the terminal; The trajectory information of the terminal.

22. The method of any one of claims 13 or 19 to 21, wherein, The method further includes: A third message is sent to the terminal, the third message being used to instruct the terminal to participate in the sensing task.

23. The method of any one of claims 13 to 22, wherein, The first information is sent via one of the following: Paging messages; Paging Downlink Control Information (DCI); System information.

24. A communications device, comprising: The communication device is used to perform the communication method according to any one of claims 1-12.

25. A communications device, comprising: The communication device is used to perform the communication method according to any one of claims 13-23.

26. A storage medium storing instructions, wherein, When the instructions are executed on the communication device, the communication device performs the method as described in any one of claims 1 to 12 or claims 13 to 23.

27. A program product, wherein, When the program product is executed by a communication device, the communication device performs the method as described in any one of claims 1 to 12 or claims 13 to 23.

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