Communication method and device, communication device, communication system and storage medium

Abstract

The embodiment of the invention provides a communication method and device, a communication device, a communication system and a storage medium. The method comprises the steps that third equipment sends a first signal, and the first signal is at least used for triggering first equipment to send first information; receiving first information sent by the first device based on the first signal; and sending the first information.

Description

Communication method and device, communication device, communication system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to communication methods and devices, communication devices, communication systems, and storage media. Background Art

[0002] Internet of Things (IoT) devices are generally low-power devices, so they can maintain long-term operation based on their own batteries. However, battery life is limited. Once the battery life is exhausted, the IoT device will stop working, affecting the user experience.

[0003] Summary of the Invention

[0004] Embodiments of the present disclosure provide a communication method and device, a communication device, and a storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a communication method is provided, wherein the method includes:

[0006] The third device sends a first signal, wherein the first signal is at least used to trigger the first device to send first information;

[0007] receiving first information sent by the first device based on the first signal;

[0008] The first information is sent.

[0009] According to a second aspect of an embodiment of the present disclosure, a communication method is provided, wherein the method includes:

[0010] receiving fourth information from the second device, wherein the fourth information indicates that the third device is used as a reader of the first device;

[0011] Sending second information to a third device; wherein the second information at least indicates that the third device serves as a reader of the first device; wherein the reader is configured to send a first signal to the first terminal and receive the first information sent by the first device.

[0012] According to a third aspect of an embodiment of the present disclosure, a communication method is provided, wherein the method includes:

[0013] Send fourth information to the core network device; wherein the fourth information includes second information, and the second information at least instructs the third device to send a first signal to the first device and receive the first information sent by the first device.

[0014] According to a fourth aspect of an embodiment of the present disclosure, a communication method is provided, wherein the method includes:

[0015] receiving a first signal sent by a third device;

[0016] First information is sent to the third device based on the signal energy of the first signal.

[0017] According to a fifth aspect of an embodiment of the present disclosure, a communication method is provided, comprising:

[0018] The third device sends a first signal to the first device; wherein the first signal is at least used to trigger the first device to send the first information;

[0019] The first device receives the first signal and sends first information to the third device based on signal energy of the first signal;

[0020] The third device receives the first information and sends the first information to the core network device;

[0021] The core network device receives the first information and sends the first information to the second device.

[0022] According to a sixth aspect of an embodiment of the present disclosure, a third device is provided, comprising:

[0023] The transceiver module is configured to send a first signal, wherein the first signal is at least used to trigger a first device to send first information; receive first information sent by the first device based on the first signal; and send the first information.

[0024] According to a seventh aspect of an embodiment of the present disclosure, a core network device is provided, comprising:

[0025] The transceiver module is configured to receive fourth information from a second device; wherein the fourth information indicates that a third device is used as a reader of the first device; send second information to the third device; the second information at least indicates that the third device is used as a reader of the first device; and the reader is used to send a first signal to the first terminal and receive the first information sent by the first device.

[0026] According to an eighth aspect of the embodiments of the present disclosure, a second device is provided, comprising:

[0027] The transceiver module is configured to send fourth information to the core network device; wherein the fourth information includes second information, and the second information at least instructs the third device to send a first signal to the first terminal and receive the first information sent by the first device.

[0028] According to a ninth aspect of an embodiment of the present disclosure, a first device is provided, comprising:

[0029] The transceiver module is configured to receive a first signal sent by a third device; and send first information to the third device based on signal energy of the first signal.

[0030] According to the tenth aspect of an embodiment of the present disclosure, a communication system is provided, wherein the information indication system includes a third device, a core network device, a first device and a second device; the third device is configured to implement the method described in any one of the first aspects, the core network device is configured to implement the method described in any one of the second aspects, the second device is configured to execute the method described in any one of the third aspects, and the first device is configured to execute the method described in any one of the fourth aspects.

[0031] According to the eleventh aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the communication method provided by the first aspect, the second aspect, the third aspect, the fourth aspect or the fifth aspect.

[0032] The technical solution provided by the embodiments of the present disclosure enables a third device to act as an excitation device for the first device, causing the first device to transmit the first information to the network, thereby achieving communication of the first information. In this way, the first device can be a passive device, thereby reducing the problems of poor communication quality and poor user experience caused by limited battery life.

[0033] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention.

[0035] FIG1A is a schematic diagram showing an architecture of a communication system according to an exemplary embodiment;

[0036] FIG1B is a schematic diagram showing wireless communication based on a backscatter transmission mechanism according to an exemplary embodiment;

[0037] FIG1C is a schematic topology diagram illustrating wireless communication using a backscatter transmission mechanism according to an exemplary embodiment;

[0038] FIG1D is a schematic diagram showing wireless communication based on a backscatter transmission mechanism according to an exemplary embodiment;

[0039] FIG1E is a schematic topology diagram illustrating wireless communication using a backscatter transmission mechanism according to an exemplary embodiment;

[0040] FIG1F is a topological diagram illustrating wireless communication using a backscatter transmission mechanism according to an exemplary embodiment;

[0041] FIG1G is a schematic diagram of a device that performs wireless communication using three backscatter transmission mechanisms according to an exemplary embodiment;

[0042] FIG2 is a schematic flow chart showing a communication method according to an exemplary embodiment;

[0043] FIG3 is a flow chart showing a communication method according to an exemplary embodiment;

[0044] FIG4 is a flow chart showing a communication method according to an exemplary embodiment;

[0045] FIG5 is a flow chart showing a communication method according to an exemplary embodiment;

[0046] FIG6 is a schematic flow chart showing a communication method according to an exemplary embodiment;

[0047] FIG7 is a schematic flow chart showing a communication method according to an exemplary embodiment;

[0048] FIG8 is a schematic flow chart showing a communication method according to an exemplary embodiment;

[0049] FIG9A is a schematic structural diagram of a third device according to an exemplary embodiment;

[0050] FIG9B is a schematic structural diagram of a core network device according to an exemplary embodiment;

[0051] FIG9C is a schematic structural diagram of a second device according to an exemplary embodiment;

[0052] FIG9D is a schematic structural diagram of a first device according to an exemplary embodiment;

[0053] FIG10A is a schematic structural diagram of a UE according to an exemplary embodiment;

[0054] Fig. 10B is a schematic structural diagram of a communication device according to an exemplary embodiment. DETAILED DESCRIPTION

[0055] Embodiments of the present disclosure provide a communication method and apparatus, communication equipment, a communication system, and a storage medium.

[0056] In a first aspect, an embodiment of the present disclosure provides a communication method, the method comprising:

[0057] The third device sends a first signal, wherein the first signal is at least used to trigger the first device to send first information;

[0058] receiving first information sent by the first device based on the first signal;

[0059] The first information is sent.

[0060] In the above embodiment, since the third device can trigger (i.e., stimulate) the first device to send its own first information to the network through the first signal, the transmission of the first information of the first device without energy storage and / or limited energy storage is achieved, and the transmission of the first information of the first device without energy storage and / or limited energy storage can be achieved without adding other nodes. This has the characteristics of simple implementation and strong compatibility with related technologies.

[0061] In conjunction with some embodiments of the first aspect, in some embodiments, the method includes:

[0062] The third device sends a first signal, wherein the first signal is at least used to trigger the first device to send first information;

[0063] receiving first information sent by the first device based on the first signal;

[0064] The first information is sent.

[0065] In conjunction with some embodiments of the first aspect, in some embodiments, the third device may be, but is not limited to: a target access network device and a terminal device. The target access network device includes a base station.

[0066] With reference to some embodiments of the first aspect, in some embodiments, sending the first information includes:

[0067] sending the first information to the second device through a first channel between the third device and the second device;

[0068] or,

[0069] The first information is sent to the core network device through a second channel between the third device and the core network device, wherein the core network device is used to send the first information to the second device through a third channel; the third channel is a transmission channel between the core network device and the second device.

[0070] In the above embodiment, the third device sends the first information to the second device through the first channel, or uses the core network device as a forwarding node to send the first information to the second device, thereby realizing the transmission of the first information to the second device, standardizing the transmission method, and reducing transmission anomalies caused by unstandardized transmission methods.

[0071] In combination with some embodiments of the first aspect, in some embodiments, second information sent by a core network device is received, wherein the second information at least indicates that the third device serves as a reader of the first device; the reader is used to send the first signal to the first device and receive the first information sent by the first device.

[0072] In the above embodiment, the third device sends the first signal to the first device according to the second information sent by the core network device, thereby implementing the behavior specification of the core network device to the third device.

[0073] In conjunction with some embodiments of the first aspect, in some embodiments, the second information includes at least one of the following:

[0074] A task identifier, wherein the task identifier identifies a task to be executed by the first device;

[0075] Task information, wherein the task information describes the task to be performed;

[0076] first indication information, indicating that the first information is sent to the second device using the first channel, or indicating that the first information is sent to the second device using the second channel and the third channel;

[0077] The address information points to the second device.

[0078] In the above embodiment, the second information includes one or more of the above information, which standardizes the transmission behavior between the target access network and the first device, thereby reducing the problem of large network interference caused by non-standard behavior between the third device and the first device, and improving the quality of the overall network environment.

[0079] In conjunction with some embodiments of the first aspect, in some embodiments, the task information includes at least one of the following:

[0080] Configuration information, configuring the third device to send the first signal and / or receive the first information;

[0081] Time information, indicating a time range for the third device to send the first signal;

[0082] Area information, indicating an area in which the third device sends the first signal;

[0083] a data reporting type, indicating a type of the first information sent by the first device;

[0084] a device identifier of a first device, indicating the first device that sends the first information;

[0085] The device group identifier of the first device group indicates a device group including a plurality of first devices that send the first information.

[0086] In conjunction with some embodiments of the first aspect, in some embodiments, the configuration information includes at least one of the following:

[0087] Resource information, configuring time domain resources and / or frequency domain resources for the third device to send the first signal and / or receive the first information;

[0088] Coverage information, indicating the coverage level and / or minimum transmit power for sending the first signal by the third device;

[0089] Number of repetitions, indicating the maximum number of repetitions for the third device to send the first signal;

[0090] The repetition interval indicates the time interval between two consecutive transmissions of the first signal by the third device.

[0091] In the above embodiment, by sending task information, the information interaction between the third device and the first device is standardized, so that the communication behavior between the third device and the first device is standardized, and the phenomenon of communication environment deterioration caused by unstandardized communication behavior is reduced.

[0092] In combination with some embodiments of the first aspect, in some embodiments, the area information includes a cell identifier and / or a base station identifier.

[0093] In the above embodiment, the cell identifier and the base station identifier can facilitate the determination of the target core device and the first device receiving the first signal, and facilitate the determination of which third device communicates with which first device, and which third device communicates with the core network device.

[0094] In conjunction with some embodiments of the first aspect, in some embodiments, the task information further includes at least one of the following:

[0095] a first correspondence between the task identifier and the device identifier of the first device;

[0096] a second correspondence between the device identifier of the first device and the first channel;

[0097] a third correspondence between the task identifier and the first channel;

[0098] A fourth corresponding relationship between the task identifier and the second channel.

[0099] In the above embodiment, when it is determined that the acquisition of the second information used to determine the first time has failed, or when it is determined that the second information used to determine the first time cannot be used, or when it is determined that the second information used to determine the first time cannot be identified, when the terminal is about to leave the signal coverage range, the sixth information will be used to indicate to the first network element that the terminal is about to leave the signal coverage range, so that the first network element can be aware of the situation that the terminal is about to leave the signal coverage range and can perform operations corresponding to the situation.

[0100] With reference to some embodiments of the first aspect, in some embodiments, sending the first signal includes:

[0101] The third device sends the first signal carrying at least the task identifier.

[0102] In the above embodiment, the first signal carries a task identifier, which facilitates the subsequent first device to return the first information carrying the task identifier. In this way, after the first information carrying the task identifier is returned to the network side, it is convenient for each network device and / or the first device to identify the first information.

[0103] In combination with some embodiments of the first aspect, in some embodiments, the first information carries the task identifier.

[0104] In combination with some embodiments of the first aspect, in some embodiments, the first information includes a device identification of the first device.

[0105] In the above embodiment, in some cases, the first information returned by the first device may not carry the task identifier, but may carry its own device identifier, or may carry both the task identifier and the device identifier, so as to facilitate other devices to know which first device the first information comes from.

[0106] In combination with some embodiments of the first aspect, in some embodiments, the device identification includes a service code, wherein the service code indicates a type of service in which the first device participates.

[0107] In the above embodiment, the device identification includes the service code. In the case where the first information carries the device identification, the service type corresponding to the current first information is known.

[0108] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0109] Sending third information to the core network device; wherein the third information is used by the core network device to determine a third device that serves as a reader of the first device.

[0110] In the above embodiment, the target terminal sends the third information so that the network device can select a suitable reader for the first device, and the selected reader has the ability to serve as a reader and / or is authorized to serve as a reader.

[0111] In conjunction with some embodiments of the first aspect, in some embodiments, the third information indicates at least one of the following:

[0112] whether the third device supports acting as a reader;

[0113] Whether the third device agrees or desires to act as a reader.

[0114] In conjunction with some embodiments of the first aspect, in some embodiments, the method includes:

[0115] A first channel is established with the second device according to the address information.

[0116] In the above embodiment, the first information may be sent to the second device through the first channel, thereby enabling direct communication between the third device and the second device.

[0117] In a second aspect, an embodiment of the present disclosure provides a communication method, the method comprising:

[0118] receiving fourth information from the second device, wherein the fourth information indicates that the third device is used as a reader of the first device;

[0119] Sending second information to a third device; wherein the second information at least indicates that the third device serves as a reader of the first device; wherein the reader is configured to send a first signal to the first terminal and receive the first information sent by the first device.

[0120] In the above embodiment,

[0121] In a third aspect, an embodiment of the present disclosure provides a communication method, wherein the method includes:

[0122] Send fourth information to the core network device; wherein the fourth information includes second information, and the second information at least instructs the third device to send a first signal to the first device and receive the first information sent by the first device.

[0123] In the above embodiment, after receiving the third information, the terminal can determine the operation associated with the first time based on the first time included in the third information; or after receiving the sixth information, the terminal can perform the operation associated with the terminal about to leave the signal coverage range based on the indication of the sixth information.

[0124] In a fourth aspect, an embodiment of the present disclosure provides a communication method, wherein the method includes:

[0125] receiving a first signal sent by a third device;

[0126] First information is sent to the third device based on the signal energy of the first signal.

[0127] In a fifth aspect, an embodiment of the present disclosure provides a communication method, wherein the method includes:

[0128] The third device sends a first signal to the first device; wherein the first signal is at least used to trigger the first device to send the first information;

[0129] The first device receives the first signal and sends first information to the third device based on signal energy of the first signal;

[0130] The third device receives the first information and sends the first information to the core network device;

[0131] The core network device receives the first information and sends the first information to the second device.

[0132] In a sixth aspect, an embodiment of the present disclosure provides a third device, comprising:

[0133] The transceiver module is configured to send a first signal, wherein the first signal is at least used to trigger a first device to send first information; receive first information sent by the first device based on the first signal; and send the first information.

[0134] In a seventh aspect, an embodiment of the present disclosure provides a core network device, comprising:

[0135] The transceiver module is configured to receive fourth information from a second device; wherein the fourth information indicates that a third device is used as a reader of the first device; send second information to the third device; the second information at least indicates that the third device is used as a reader of the first device; and the reader is used to send a first signal to the first terminal and receive the first information sent by the first device.

[0136] In an eighth aspect, an embodiment of the present disclosure provides a second device, comprising:

[0137] The transceiver module is configured to send fourth information to the core network device; wherein the fourth information includes second information, and the second information at least instructs the third device to send a first signal to the first terminal and receive the first information sent by the first device.

[0138] In a ninth aspect, an embodiment of the present disclosure provides a first device, comprising:

[0139] The transceiver module is configured to receive a first signal sent by a third device; and send first information to the third device based on signal energy of the first signal.

[0140] In the tenth aspect, an embodiment of the present disclosure provides a communication system, wherein the information indication system includes a third device, a core network device, a first device, and a second device; the third device is configured to implement the method described in any one of the first aspects, the core network device is configured to implement the method described in the second aspect, the second device is configured to execute the method described in any one of the third aspects, and the first device is configured to execute the method described in any one of the fourth aspects.

[0141] In an eleventh aspect, an embodiment of the present disclosure provides a communication device, the communication device comprising:

[0142] one or more processors;

[0143] The processor is used to call instructions to enable the communication device to execute the communication method described in the optional implementation manner of the first aspect, the second aspect, the third aspect, the fourth aspect or the fifth aspect.

[0144] In the twelfth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, which, when the instructions are executed on a communication device, enable the communication device to execute the communication method described in the optional implementation of the first aspect, the second aspect, the third aspect, the fourth aspect or the fifth aspect.

[0145] In the thirteenth aspect, an embodiment of the present disclosure provides a program product, which, when executed by a communication device, enables the communication device to execute the communication method described in the optional implementation of the first aspect, the second aspect, the third aspect, the fourth aspect, or the fifth aspect.

[0146] In a fourteenth aspect, an embodiment of the present disclosure provides a computer program which, when executed on a computer, enables the computer to execute the communication method described in the optional implementation of the first aspect or the second aspect, the third aspect, the fourth aspect or the fifth aspect.

[0147] It is understandable that the third device, core network device, first device, second device, communication device, communication system, storage medium, program product, and computer program are all used to perform the methods provided in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0148] The present disclosure provides a communication method and device, a communication device, a communication system, and a storage medium. In some embodiments, the terms "communication method" and "information processing method" are interchangeable; the terms "information indicating device" and "information processing device" are interchangeable; and the terms "communication system" and "information processing system" are interchangeable.

[0149] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain 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 certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0150] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0151] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0152] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0153] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0154] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0155] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "in one case A, in another case B," or "in one case A, in another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, and C.

[0156] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0157] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0158] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0159] In some embodiments, terms such as "...", "determine...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0160] In some embodiments, terms such as "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 less than", and "above" can be replaced with each other, and terms such as "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" can be replaced with each other.

[0161] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0162] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0163] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "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", "bandwidth part (BWP)" and the like may be used interchangeably.

[0164] In some embodiments, the terms "terminal", "terminal device", "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. can be used interchangeably.

[0165] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0166] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0167] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0168] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0169] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0170] FIG1A is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0171] As shown in FIG1A , a communication system 100 includes a first device 101 , an access network device 102 , a core network device 103 , and a second device 104 .

[0172] In some embodiments, the first device 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0173] In some embodiments, the first device is also called User Equipment (UE).

[0174] In some embodiments, the access network device 102 can be, for example, a node or device that accesses the terminal to the wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (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 base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0175] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0176] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0177] In some embodiments, the core network device 103 may be a single device including the first network element 1031, or may be multiple devices or a group of devices, each including the first network element 1031. A network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0178] In some embodiments, the first network element 1031 is, for example, an access and mobility management function (AMF).

[0179] In some embodiments, the first network element 1031 is, for example, a Mobility Management Entity (MME).

[0180] In some embodiments, the first network element 1031 is used for access and mobility management, such as registration management, connection management, and mobility management, etc., but the name is not limited thereto.

[0181] In some embodiments, the first network element 1031 may be a network element independent of the core network device.

[0182] In some embodiments, the core network may further include a second network element, etc. The second network element may include: User Data Management (UDM), etc.

[0183] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0184] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1A , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0185] The embodiments of the present disclosure 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 (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (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 utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0186] In some cases, IoT devices are often powered by traditional batteries with limited lifespans, negatively impacting the user experience. The expected astronomical growth in the number of IoT network devices, coupled with the massive number of IoT devices, has pushed maintenance expenses, including labor and battery costs, to a whole new level. Billions of traditional batteries are discarded each year, with only a small fraction effectively recycled, negatively impacting the Earth's ecosystem. Maintaining IoT network operations and replacing batteries can be extremely challenging in extreme environmental conditions. Battery-free IoT communications have been proposed to improve network performance and sustainability, expanding their application scenarios. Furthermore, battery-free communications are more environmentally friendly and safer for children and the elderly. By eliminating traditional batteries, device size and cost can be significantly reduced, paving the way for a variety of new applications.

[0187] In some implementations, various Low Power Wide Area (LPWA) technologies, such as Machine Type Communication (MTC), Narrow Band Internet of Things (NB-IoT), and Reduced Capability (RedCap), have been developed to meet the growing demands of various vertical sectors. These LPWA technologies offer low cost, low power consumption, and large-scale connectivity, meeting the requirements of many applications. However, many use cases and applications remain unaddressed. First, battery-powered devices are not suitable, such as in extreme environmental conditions (e.g., high voltage, extremely high / low temperatures, and humid environments). Second, maintenance-free devices are required (e.g., devices without traditional batteries requiring replacement). Finally, ultra-low complexity, very small device size / form factor (e.g., mm thickness), and extended lifecycles are required. Ambient-powered IoT devices are promising technologies that can address these unmet needs. Ambient-powered IoT devices are IoT devices powered by energy harvesting, either without batteries or with limited energy storage capabilities (e.g., using capacitors). Energy is collected from radio waves, light, motion, heat, or any other suitable power source.

[0188] Energy obtained from the environment can drive data transmission and wireless communication of sensing nodes. The current mainstream low-power IoT communication chips (such as BLE, LoRa, NB-IoT) have a transmit and receive power consumption of tens or even hundreds of milliwatts, while the energy obtained by environmental energy harvesting is only at the microwatt level, which is unable to drive these types of nodes to work. Therefore, a new wireless communication technology is needed to reduce communication energy consumption to tens of microwatts or even less than ten microwatts. The current mainstream method uses backscatter communication technology. Backscatter Communications is one of the key technologies for building a green, energy-saving, low-cost, and flexibly deployable future Internet of Things, and is an important means to achieve "Intelligent Connection of Everything". The methods that can be used include backscatter transmission (Backscatter Communications) technology.

[0189] The first device 104 shown in FIG1A can be any device that performs wireless communication using a backscatter transmission mechanism.

[0190] As shown in Figure 1B, the backscatter transmission mechanism is a wireless communication mechanism that utilizes the principle of radio frequency signal backscattering with extremely low-power modulation and transmission technology. A reader sends a physical layer signal to an ambient IoT device. This physical layer signal can be a pulse signal or other AC signal. In some embodiments, this physical layer signal is used to provide energy for the ambient IoT device to transmit the signal. Therefore, this physical layer signal can be referred to as an excitation signal or trigger signal. For example, since a portion of the excitation signal is reflected when it reaches the ambient IoT device, the ambient IoT device can adjust the matching between the receiving antenna and the impedance according to the intended information to enhance the reflection of the incident excitation signal and modulate the acquired sensor data onto the reflected signal to complete the data transmission. This process is similar to a reflector. Compared to other communication technologies, backscatter transmission does not require complex radio frequency structures, reducing the use of components such as power amplifiers, high-precision crystal oscillators, duplexers, and high-precision filters. It also does not require complex baseband processing. Therefore, it can simplify the design of ambient IoT devices and significantly reduce the cost of ambient IoT device nodes. Ambient IoT devices are IoT devices that use environmental energy to operate. This environmental energy can include the aforementioned wireless signal energy, as well as other environmental capabilities such as geothermal energy and / or light energy.

[0191] Here, the device that sends a physical layer signal to the ambient IoT device and triggers the ambient IoT device to return a reflected signal can be called an anchor point of the ambient IoT device reader.

[0192] It is worth noting that an ambient IoT device is a device that uses the backscatter transmission mechanism for wireless communication. In specific implementations, other devices can also use the backscatter transmission mechanism for wireless communication.

[0193] The anchor point or reader of the ambient IoT device may be a network node of a wireless communication network, such as an access network device, a relay node (or intermediate node), or a terminal.

[0194] Backscatter transmission network topologies can include one of the following:

[0195] Topology 1: As shown in Figure 1C, uplink (UL) and downlink (DL) data transmission is carried out directly between ambient IoT devices and access network devices.

[0196] Topology 2: As shown in Figure 1D, DL and UL data transmission occurs indirectly between ambient IoT devices and access network equipment. Intermediate nodes (also called auxiliary nodes) provide forwarding services. These intermediate nodes can include relays, integrated access backhaul (IAB), user equipment (UE), and repeaters (RP).

[0197] Topology 3: As shown in Figure 1E, ambient IoT devices and access network devices directly transmit or receive data in the DL or UL. Auxiliary nodes are located on the UL or DL, responsible for receiving or sending UL or DL ​​data. Examples of auxiliary nodes include relays, integrated access backhaul (IAB) nodes, terminals, and network-controlled repeaters (NCRs).

[0198] Topology 4: As shown in Figure 1F, the ambient IoT device and the UE directly receive and transmit data on the downlink and uplink. The UE is responsible for collecting data and forwarding it to the network.

[0199] As shown in Figure 1G, devices that use the backscatter transmission mechanism for wireless communication can be divided into three types:

[0200] Device A: has no energy storage, cannot independently generate and / or amplify signals, and can only perform backscatter transmission.

[0201] Device B: Has energy storage, cannot generate signals independently, and can only perform backscatter transmission. The use of stored energy can include amplification of the backscattered signal.

[0202] Device C: has energy storage and can independently generate signals, that is, it has active radio frequency (RF) components for transmission.

[0203] In the embodiment of the present disclosure, considering the large number of terminals, and therefore considering the coverage range, the terminal may also be selected as an anchor point or reader for a device that communicates using the backscatter principle.

[0204] FIG2 is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2 , the present disclosure embodiment relates to a communication method for a communication system 100, the method comprising:

[0205] S2101: Send the third information.

[0206] In some embodiments, the third device sends third information to the core network device.

[0207] In some embodiments, the access network device sends the third information to the core network device. The third device at least includes the access network device.

[0208] In some embodiments, the third information is used by the core network device to determine a third device that serves as a reader of the first device. The reader of the first device may send a first signal to the first device and receive first information returned by the first device based on the first signal.

[0209] This reader may also be referred to as an anchor point.

[0210] Exemplarily, the third information may be used by the core network device to select a reader for the first device, or the third information may be used by the second device to select a reader for the first device.

[0211] As another example, when the third information is transmitted to the second device, the second device may select a reader of the first device. The second device may be a receiving device of the first information read by the reader.

[0212] Exemplarily, the third information indicates at least one of the following:

[0213] Whether the third device supports acting as a reader;

[0214] whether the third device agrees or desires to act as a reader;

[0215] The reader is used to send a first signal to the first device and receive first information returned by the first device.

[0216] That is, in some instances, the third information may include capability information indicating whether the third device supports acting as a reader.

[0217] In some embodiments, the third information may further include: indication information indicating whether the third device agrees or expects the third device to act as a reader.

[0218] In some cases, the third information of the third device may be pre-stored in the core network device through contract information, etc., so the third device does not need to report the third information.

[0219] In other cases, for example, the indication information is pre-stored in the core network device through subscription information, while the capability information needs to be reported by a third device. In some other embodiments, the third device only needs to report one of the capability information and the indication information.

[0220] In some embodiments, the third information may further include one of the following:

[0221] time information indicating a time at which the third device agrees or desires to act as a reader;

[0222] spatial information indicating a location area in which the third device agrees or desires to act as a reader;

[0223] Status information indicates the third device's status of agreeing or expecting to act as a reader. The third device status may be related to the load rate of the third device, whether the third device itself has business data to send, etc.

[0224] For example, the time information may indicate that the third device may act as a reader when its own traffic volume is generally relatively low.

[0225] For another example, the status information may indicate that the third device can act as a reader when it has no business data to send.

[0226] By sending the third information, the communication interference of the third device to itself when the third device acts as a reader of the first device is reduced, thereby ensuring the communication quality of the target access network device itself.

[0227] In some embodiments, the third information indicates at least one of the following:

[0228] Whether the fourth device supports acting as a reader;

[0229] whether the fourth device agrees or desires to act as a reader;

[0230] The reader is configured to send a first signal to the first device and receive first information returned by the first device. The fourth device includes the third device, which is a part of the fourth device.

[0231] That is, in some instances, the third information may include capability information indicating whether the fourth device supports acting as a reader.

[0232] In some embodiments, the third information may further include: indication information indicating whether the fourth device agrees or expects the fourth device to act as a reader.

[0233] In some cases, the third information of the fourth device may be pre-stored in the core network device through contract information, etc., so the fourth device does not need to report the third information.

[0234] In other cases, for example, the indication information is pre-stored in the core network device through subscription information, while the capability information needs to be reported by the fourth device. In some other embodiments, the fourth device only needs to report one of the capability information and the indication information.

[0235] In some embodiments, the third information may further include one of the following:

[0236] time information indicating a time at which the fourth device agrees or desires to act as a reader;

[0237] spatial information indicating a location area in which the fourth device agrees or desires to act as a reader;

[0238] Status information indicates the fourth device status of the fourth device agreeing or expecting to act as a reader. The fourth device status may be related to the load rate of the fourth device, whether the fourth device itself has business data to be sent, etc.

[0239] For example, the time information may indicate that the fourth device may act as a reader when its own traffic volume is generally relatively small.

[0240] For another example, the status information may indicate that the fourth device can act as a reader when it has no business data to send.

[0241] In some embodiments, the first device may be a wireless device that does not have a power supply module, a wireless device whose power supply capability of its power supply module is extremely weak, a wireless device that has a power supply module but the power supply module has lost its power supply capability, or any wireless device that supports backscatter communication.

[0242] In some embodiments, the first device may be any passive device, an ambient energy device, or an ambient IoT device.

[0243] Exemplarily, the first device may be device A, device B and / or device C shown in FIG. 1G .

[0244] The second device can be any endpoint that receives the first information. The endpoint is also the device corresponding to the receiving address of the first information, that is, the second device is the receiving device of the first information.

[0245] The second device may include but is not limited to a server or an application function (AF).

[0246] Exemplarily, the first device is an IoT device, and the second device may be an IoT server.

[0247] In some embodiments, the second device may be any network device located within the trust domain of the mobile communication network.

[0248] In some embodiments, the second device may be any network device located in the trust domain of the mobile communication network. Such a second device may be connected to the mobile communication network through a network open function or the like.

[0249] In some embodiments, the first signal at least triggers the first device to send the first information. That is, in some cases, the first signal can serve as a trigger signal for the first device to send the first information.

[0250] In some embodiments, the first signal is an excitation signal for the first device, and the first signal excites the first device to send the first information.

[0251] In some embodiments, the first signal provides energy for the first device to send the first information. Exemplarily, the first device receives the first signal and sends the first information based on the signal energy of the first signal.

[0252] In some embodiments, the first information may include data and / or signaling. For example, the first information may include pre-configured data on the first device and data and / or signaling written to the first device by a third device. For example, the third device may be various sensors. The pre-configured data herein may be any data written to the first device before the first device is put into use.

[0253] The first information may be carried by the reflected signal shown in FIG. 1B .

[0254] Exemplarily, the preset data of the first device includes but is not limited to one of the following:

[0255] a device identifier of the first device;

[0256] device type information of the first device;

[0257] The identification and / or target information of the target carrying the first device. For example, the target carrying the first device may include an object such as a courier. The pre-set data on the first device may include the identification of the target and / or information about the type of courier, the origin and destination of the courier, and / or security information.

[0258] In some embodiments, although the first device does not have its own power supply or only has a power supply module for temporary energy storage or a power supply module with limited power supply capacity, the first device has storage space and serves as an external storage device for a third device, allowing the third device to write data and / or signaling. In this way, even if the first device does not have pre-configured data, the first information in the first device is dynamically updated.

[0259] Illustratively, the third information includes at least one of the following:

[0260] capability information indicating whether the third device supports serving as a reader for the first device;

[0261] Indication information indicating whether the third device agrees or desires to serve as a reader of the first device.

[0262] In some embodiments, the third information further includes at least one of the following:

[0263] Proposed spatiotemporal information, indicating temporal information and / or spatial information that the third device agrees or expects to serve as a reader of the first device;

[0264] Bandwidth information, indicating radio frequency information used when the third device acts as a reader.

[0265] The third information includes at least one of the following:

[0266] capability information indicating whether the fourth device supports serving as a reader for the first device;

[0267] Indication information indicating whether the fourth device agrees or desires to serve as a reader of the first device.

[0268] In some embodiments, the fourth information further includes at least one of the following:

[0269] Proposed spatiotemporal information, indicating temporal information and / or spatial information that the fourth device agrees or desires to serve as a reader of the first device;

[0270] Bandwidth information, indicating radio frequency information used when the fourth device acts as a reader.

[0271] Of course, the above is just an example of the third information, and the specific implementation is not limited to the above example.

[0272] In some embodiments, the third information may further include:

[0273] whether the third device supports acting as a reader; and / or whether the third device agrees or desires to act as a reader;

[0274] The reader is used to send a first signal to the first device and receive first information returned by the first device.

[0275] In some embodiments, the third device forwards or transparently transmits the third information to the core network device.

[0276] In some embodiments, the core network device receives third information from a third device.

[0277] The core network device receiving the third information here may include but is not limited to the Access Management Function (AMF) and the like.

[0278] S2102: Send the fourth message.

[0279] In some embodiments, the second device sends fourth information.

[0280] In some embodiments, the second device sends fourth information to the core network device.

[0281] The second device may be a server or an application function.

[0282] In some embodiments, the fourth information, indicating that the third device is used as a reader of the first device, indicates that the third device is selected to send the first signal to the first device and receive the first information of the first device.

[0283] In some embodiments, the fourth information indicates that the fourth device is used as a reader of the first device, indicating that the fourth device is selected to send the first signal to the first device and receive the first information of the first device.

[0284] In some embodiments, the fourth information includes the second information. The second information may be used to instruct the third device to send a first signal to the first device and receive the first information sent by the first device.

[0285] In some embodiments, the second information includes at least one of the following:

[0286] A task identifier, wherein the task identifier identifies a task to be executed by the first device;

[0287] Task information, wherein the task information describes the task to be performed;

[0288] first indication information, indicating that the first information is sent to the second device using the first channel, or indicating that the first information is sent to the second device using the second channel and the third channel;

[0289] The address information points to the second device.

[0290] The task identifier may be a uniquely identifiable coding sequence and / or character string assigned to the second device.

[0291] A task identifier indicates a task to be performed by the first device, and the task may be related to the first information reporting of the first device.

[0292] The task information may indicate the service type, service identifier, data type and / or data volume of the first information to be uploaded by the first device, etc. involved in the task to be executed.

[0293] Address information includes but is not limited to Internet Protocol (IP) addresses.

[0294] In some embodiments, the address information may further include: an IP address and a port number, etc. In some embodiments, the method further includes:

[0295] A first channel is established with the second device according to the address information. The third device sends a channel establishment request to the designated address according to the designated address in the address information. The second device can establish the first channel after receiving the channel establishment request sent by the second device.

[0296] In some embodiments, the task information includes at least one of the following:

[0297] Configuration information, configuring the third device to send the first signal and / or receive the first information;

[0298] Time information, indicating a time range for the third device to send the first signal;

[0299] Area information, indicating an area in which the third device sends the first signal;

[0300] a data reporting type, indicating a type of the first information sent by the first device;

[0301] a device identifier of a first device, indicating the first device that sends the first information;

[0302] The device group identifier of the first device group indicates a device group including a plurality of first devices that send the first information.

[0303] The area information may include but is not limited to a cell identifier, a base station identifier and / or a tracking area (TA) identifier.

[0304] In some embodiments, the time information may indicate at least one of the following:

[0305] The time range in which the target terminal sends the first signal;

[0306] the start time and / or end time at which the target terminal sends the first signal;

[0307] The time interval between two consecutive first signal transmissions by the target terminal;

[0308] The duration of the first signal sent by the target terminal.

[0309] In some embodiments, the configuration information includes at least one of the following:

[0310] Resource information, configuring time domain resources and / or frequency domain resources for the third device to send the first signal and / or receive the first information;

[0311] Coverage information, indicating the coverage level and / or minimum transmit power for sending the first signal by the third device;

[0312] Number of repetitions, indicating the maximum number of repetitions for the third device to send the first signal;

[0313] The repetition interval indicates the time interval between two consecutive transmissions of the first signal by the third device.

[0314] The coverage level may be used by the target terminal to determine the maximum power and / or minimum power for sending the first signal, and / or the coverage range of the first signal.

[0315] In other embodiments, the task information may further include:

[0316] Device information, which identifies the first device that executes the task to be executed. For example, the device information may indicate the type of device and the functions supported by the device.

[0317] Configuration information may indicate configuration for wirelessly sending the first signal and receiving the first information. For example, the configuration information may involve configuration of wireless resources, power configuration, and / or transmission mode configuration;

[0318] Delay-sensitive information indicates whether the first information sent by the first device is delay-sensitive. If the first information is delay-sensitive, the third device must promptly send the first information received from the first device to the core network device or the second device. If the first information is not delay-sensitive, the third device may temporarily buffer the first information and wait until an appropriate time to send it to the core network device or the second device.

[0319] In some cases, the third device may not be able to complete the reporting of the first information by the first device by sending the first signal once, and this can be achieved by repeatedly sending the first signal multiple times. For example, the third device may send the first signal equal to the number of repetitions in one round of first signal transmission.

[0320] In some other embodiments, the repetition interval indicates a time interval and / or a frequency domain interval for repeatedly sending the first signal.

[0321] In short, the configuration information regulates the behavior of the third device sending the first signal, and can control the third device sending the first signal according to the current wireless environment and / or system capacity, thereby ensuring communication quality.

[0322] In some embodiments, the configuration information may also include:

[0323] The transmission mode, for example, indicates whether to transmit the first signal by frequency hopping, wherein the frequency hopping transmission includes: transmitting the first signal by frequency hopping within a time slot, and / or transmitting the first signal by frequency hopping across time slots.

[0324] A sending sequence, for example, indicating a sequence carried by a first signal sent by frequency hopping, wherein the sequence enables a non-first device to ignore the first signal after receiving the signal;

[0325] The indication information indicates whether the first signal carries the second information, for example, whether the first signal carries at least the task identifier in the second information and / or the device identifier of the first device.

[0326] In some embodiments, the task information further includes at least one of the following:

[0327] a first correspondence between the task identifier and the device identifier of the first device;

[0328] a second correspondence between the device identifier of the first device and the first channel;

[0329] a third correspondence between the task identifier and the first channel;

[0330] A fourth corresponding relationship between the task identifier and the second channel.

[0331] The first to fourth corresponding relationships herein are collectively referred to as corresponding relationships.

[0332] Two pieces of information with a corresponding relationship can serve as index information for finding each other.

[0333] For example, if there is a first correspondence between the task identifier and the device identifier of the first device, the network device or terminal device will store the task identifier and the device identifier of the first device accordingly. Subsequently, the task identifier can be found based on the device identifier, and the device identifier can also be found based on the task identifier.

[0334] The second correspondence between the device identification of the first device and the first channel can be represented by storing the device identification of the first device and the channel identification of the first channel in correspondence. In this way, the first channel can be determined based on the device identification of the first device, and the device identification of the first device can also be determined based on the first channel.

[0335] According to the third correspondence between the task identifier and the first channel, the network device and / or the terminal device will store the channel identifier and the task identifier of the first channel accordingly. In this way, the first channel can be determined according to the task identifier, and the second task identifier can also be determined according to the first channel.

[0336] According to the fourth correspondence between the task identifier and the second channel, the network device and / or the terminal device will store the channel identifier and the task identifier of the second channel accordingly. In this way, the second channel can be determined according to the task identifier, and the task identifier can also be determined according to the second channel.

[0337] In some embodiments, the core network device receives the fourth information, or the third device receives the fourth information.

[0338] In some embodiments, the fourth information further includes at least one of the following:

[0339] an Internet Protocol (IP) address of the second device;

[0340] The first indication information indicates that the first information is sent to the second device using the first channel, or indicates that the first information is sent to the second device using the second channel and the third channel; the first channel is a transmission channel between the third device and the second device; the second channel is a transmission channel between the third device and the core network device; the third channel is a transmission channel between the core network device and the second device.

[0341] In some embodiments, the fourth information may further indicate one of the following:

[0342] The second indication information indicates whether to use the third device as a reader of the first device.

[0343] The third indication information indicates whether to use network slicing or PDU session to send the first information to the second device.

[0344] S2103: Send the second information.

[0345] In some embodiments, the core network device sends the second information based on the fourth information.

[0346] In some embodiments, the core network device sends the second information to the third device based on the fourth information.

[0347] In some embodiments, the core network device may send the second information directly to the third device via NAS signaling based on the fourth information. The NAS signaling herein is also a NAS message.

[0348] In some embodiments, the second information is used to indicate that the third device serves as a reader of the first device.

[0349] In some embodiments, the core network device sends the second information to the third device via an IoT task setup request message (task setup request).

[0350] In some embodiments, the third device receives the second information.

[0351] In some embodiments, the core network device receives the third information based on NAS signaling and sends the third information to the third device.

[0352] In some embodiments, the core network device sends the third information to the third device via an initial context establishment request.

[0353] In some embodiments, upon receiving the second information, the third device may send feedback information about the second information to the core network device. This feedback information may be optional information and may be used to indicate that the third device has received the second information. Exemplarily, this feedback information may be an acknowledgment character (ACK) or a non-acknowledgment character (NACK).

[0354] In some embodiments, the third device receives the second information sent by the core network device.

[0355] The third device that receives the second information considers that it is not suitable to be the third device at present, and can send a rejection message to the core network device. After receiving the rejection message, the core network device can reselect the third device as the first device reader.

[0356] In some instances, the third device that receives the second information believes that it can currently serve as the third device and may send an acceptance message to the core network device. After receiving the acceptance message, the core network device may serve as the third device.

[0357] S2104: Send a first signal.

[0358] In some embodiments, the third device sends the first signal to the first device.

[0359] In some embodiments, after receiving the second information, the third device sends the first signal according to the second information.

[0360] Exemplarily, the first signal is sent within a specified time range according to the second information.

[0361] Also illustratively, the first signal is sent in a specified direction according to the second information.

[0362] In some embodiments, a transmission parameter for sending the first signal is determined based on the second information; wherein the transmission parameter includes but is not limited to at least one of the following:

[0363] a carrier frequency for transmitting the first signal;

[0364] transmit power of the first signal;

[0365] a transmission period of the first signal;

[0366] the number of repetitions of the first signal;

[0367] a beam used by the first signal;

[0368] The coverage level of the first signal.

[0369] Of course, the above transmission parameters can be determined according to the second information, or can be determined by the third device according to its current monitoring of the wireless environment.

[0370] In some other embodiments, the third device sends the first signal to the first device.

[0371] In some embodiments, the first device receives the first signal.

[0372] In some embodiments, the first signal may be a physical layer signal sent according to a preset sequence, and the physical layer signal may not carry any information content.

[0373] In other embodiments, the first signal may be a signal carrying information content. After receiving the first signal, the first device may decode the first signal to extract the information carried in the first signal.

[0374] In some embodiments, the first signal may carry at least part of the second information.

[0375] The second information may be used by the third device and / or the auxiliary node to send the first signal, and may also be used by the first device to send the first information.

[0376] In some embodiments, the first signal may carry at least one of the following information:

[0377] A task identifier, the task identifier identifying a task to be performed by the first device. For example, the task to be performed may at least include: reporting of first information;

[0378] Task information, which describes the task to be performed, for example, the corresponding business of the task to be performed, the task type, the specific content of the first information that the first device needs to report when performing the task, and / or the first device needs to report all or part of the first information stored in itself.

[0379] In some embodiments, the first signal may carry a device identifier of the first device to which the first information is to be transmitted. Thus, if there are multiple first devices and multiple first devices receive the first signal, only the first device whose device identifier is carried in the first signal will transmit the first information in response to the first signal.

[0380] Taking the first device mounted on the third device as an example, the task information may instruct the first device to send newly added first information relative to the last data reporting.

[0381] S2105: Send first information based on the first signal.

[0382] In some embodiments, the first device sends the first information based on a trigger or stimulus of the first signal.

[0383] In some other embodiments, the first device sends the first information based on signal energy of the first signal.

[0384] In some embodiments, the first device sends the first information to the sending device of the first signal based on the first signal.

[0385] Exemplarily, the first device can send the first information to the third device based on at least a portion of the signal quantity of the first signal.

[0386] Here, for the relevant description of the first device and / or the first information, please refer to the corresponding description of the aforementioned step S2101.

[0387] Step S2106: Send the first information.

[0388] In some embodiments, the third device sends the first information to the core network device.

[0389] In some other embodiments, the third device sends the first information to the second device.

[0390] The third device here can be various types of base stations, etc.

[0391] The core network device can be any device located at the core network terminal.

[0392] For example, the core network device may include but is not limited to a user plane function (UPF). The UPF is a user plane network element of the core network and can be used for data exchange between devices.

[0393] In some embodiments, including method 1: the third device sends the first information to the second device.

[0394] In some embodiments, including method 2: the third device sends the first information to the core network device.

[0395] In some embodiments, the second method further includes: the core network device sends the first information to the second device.

[0396] The second device may be a target end device that needs to receive the first information.

[0397] In some embodiments, the second device may be a server that receives the first information. For example, the second device may be an IoT server.

[0398] In some embodiments, the second device may be an application function (AF) deployed within the core network or outside the core network.

[0399] In some embodiments, the third device may send the first information based on a protocol data unit (PDU) session.

[0400] In some embodiments, the target access network may send the first information based on a tunnel.

[0401] In some embodiments, the target access network device may send the first information based on one or more tunnels.

[0402] In some implementations, the target access network may send the first information using network slicing.

[0403] In short, the first information will be forwarded or transparently transmitted to the second device directly or indirectly.

[0404] In the embodiment of the present disclosure, an intermediate device such as a target access network is used to transmit a first signal so that a passive device and / or a first device that can only generate a small amount of energy can successfully transmit the first information, thereby enabling a passive device and a first device whose power supply module can no longer be used to successfully communicate.

[0405] FIG3 is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3 , the present disclosure embodiment relates to a communication method for a third device, the method comprising:

[0406] S3101: Send third information; the third device here can refer to the third device shown in the embodiment shown in Figure 2.

[0407] The third information can be used by the core network device to select a reader for the first device. The reader can also be called an anchor device, etc. The information content of the third information here can be found in the embodiment shown in Figure 2 and will not be repeated here.

[0408] S3102: Receive second information;

[0409] In some embodiments, the third device receives the second information from the core network device.

[0410] After receiving the second information, the third device will locally store the second information.

[0411] The second information here can be used by the third device to send the first signal to the first device and receive the first information returned based on the first signal.

[0412] The information content of the second information can be found in the embodiment shown in FIG2 , and will not be repeated here.

[0413] S3103: Send a first signal.

[0414] In some embodiments, after receiving the second information, the third device enters a preparation state for wireless communication with the first device, and after entering the preparation state, sends the first signal according to the second information.

[0415] In some embodiments, the third device transmits the first signal directionally or non-directionally using the frequency, transmission power and / or coverage gain indicated by the second information according to the second information.

[0416] The first signal can be used as a trigger signal or an excitation signal for the first device to return the first information. For the description of the first device here, please refer to the embodiment shown in FIG2 .

[0417] In some embodiments, the first signal may carry part or all of the content in the second information. For example, the first information may carry the task identifier and / or task information in the second information.

[0418] S3104: Receive the first information.

[0419] In some embodiments, the first information is information sent by the first device based on at least a portion of signal energy of the first signal. The first information is information returned based on a backscatter communication mechanism.

[0420] In some embodiments, the first information is received based on resource information indicated by the second information.

[0421] In some embodiments, the first information is received on a radio bearer (RB) indicated by bearer information in the second information.

[0422] For the specific content of the first information, please refer to the embodiment shown in FIG2 .

[0423] In some embodiments, the first information may include a task identifier, and / or may not include a task identifier.

[0424] In other embodiments, the first information may carry a device identification of the first device.

[0425] In some embodiments, the device identification may include a service code, which may identify a service that the first device is capable of performing and / or a type of service in which the first device participates. Typically, the task identified by the task identification is related to the service identified by the service code in the device identification of the first device. The service type can be determined based on the service code, with different service codes corresponding to different service types.

[0426] S3105: Send the first message.

[0427] In some embodiments, the third device sends the first information to the second device and / or the core network device.

[0428] In some embodiments, the third device sends the first information based on the second information.

[0429] Exemplarily, the first device sends the first information to the third device according to the resource information in the second information.

[0430] For example, the third device sends the first information to the core network device and / or the second device in a signaling radio bearer (SRB) and / or a data radio bearer (DRB) based on the resource information.

[0431] For another example, the third device uses a physical uplink shared channel (PUSCH), a random access channel (RACH), or a physical uplink control channel (PUCCH) indicated by the resource information to physically send the first information.

[0432] For another example, the third device sends the first information using the logical channel or logical channel group indicated by the resource information.

[0433] In some embodiments, the third device sends the first information to the core network device.

[0434] In some embodiments, the third device sends the first information to the second device.

[0435] In some embodiments, the third device sends the first information to the core network device via a second channel. The second channel may include a tunnel between the core network device and the third device. The tunnel may include, but is not limited to, a General Packet Radio Service (GPRS) Tunneling Protocol (GTP) tunnel. GPRS stands for General Packet Radio Service. The second channel may also be a Next Generation Application Protocol (NGAP) connection.

[0436] Furthermore, the first information is also sent by the core network device to the second device via a third channel. The third channel may include but is not limited to an IP channel.

[0437] In other embodiments, the third device sends the first information to the second device through the first channel.

[0438] The first channel may be an IP tunnel established based on the IP address of the second device.

[0439] For the related description of the first information here, please refer to the method shown in FIG2 .

[0440] In summary, in the embodiment of the present disclosure, the third device can act as a reader or anchor point for the first device, and smoothly send the first information of the first device to the network device.

[0441] In the embodiment of the present disclosure, a third device can be used to stimulate the first device to send the first information, so that the first device that is passive or has very low energy can successfully send the first information to the network side.

[0442] In some embodiments, S3101 is an optional step, and the selection of the third device may be instructed by the core network or agreed upon by a protocol or pre-configured.

[0443] In some embodiments, part or all of the third information may be pre-subscribed to the UDM and / or UDR stored in the core network device, so the third device does not need to provide the third information to the network device subsequently.

[0444] In some embodiments, S3102 is an optional step, and the third device may obtain the second information according to a protocol agreement, or send the first signal periodically or irregularly according to a pre-configuration.

[0445] In some embodiments, the communication method includes: S3102 to S3105, that is, S3101 is an optional step, and the third device can be preset.

[0446] In other embodiments, the communication method may include: S3103, S3104 and S3105, that is, S3101 and S3102 are optional steps, and any third device may send the first signal.

[0447] FIG4 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4 , the embodiment of the present disclosure relates to a communication method, which is executed by a core network device. The method includes:

[0448] S4101: Acquire third information;

[0449] The core network equipment may include but is not limited to AMF, UPF, PCF or SMF.

[0450] In some embodiments, the core network device obtains the third information from the subscription data stored in the User Data Management (UDM) and / or the Unified Data Repository (UDR).

[0451] In some embodiments, the core network device receives the third information from one or more third devices.

[0452] In some embodiments, obtaining the third information includes: receiving the third information sent by one or more third devices from a network management device.

[0453] In some embodiments, third information reported by the first device and forwarded by a third device is received.

[0454] The relevant description of the third information here can be found in the instantiation shown in Figure 2, and will not be repeated here.

[0455] S4102: Receive the fourth information.

[0456] In some embodiments, fourth information sent by the second device is received.

[0457] For the related description of the fourth information, please refer to the embodiment shown in FIG2 , which will not be repeated here.

[0458] S4103: Send the second information.

[0459] In some embodiments, after receiving the fourth information, the second information is sent to the third device.

[0460] In some embodiments, the core network device sends an IoT task establishment request to the third device, where the IoT task establishment request carries the second information.

[0461] In some embodiments, the third information is sent to the third device via an initial context request message.

[0462] In some embodiments, the core network device also sends third information to the third device.

[0463] In some embodiments, the core network device may send the second information and / or the third information together to the third device.

[0464] For the related description of the fourth information and the second information, please refer to the embodiment shown in FIG2 .

[0465] S4104: Receive first information.

[0466] In some embodiments, the core network device receives the first information from the third device through the second channel.

[0467] S4105: Send the first message.

[0468] In some embodiments, the core network device sends the first information to the second device through the third channel.

[0469] In some embodiments, the communication method performed by the core network may include: S4103; other steps are optional or may be omitted. In some cases, the core network device pre-stores the fourth information or the protocol stipulates the fourth information, and the core network facility directly transmits the second information. The first information may or may not pass through the core network device during the reporting process. For example, a third device may directly transmit the first information to the second device.

[0470] In some embodiments, the communication method performed by the core network may include: S4103 and S4104; other steps are optional or may be omitted. For example, when the core network device is the receiving endpoint of the first information, after receiving the first information, the core network no longer sends the first information to other devices.

[0471] In some embodiments, the communication method performed by the core network may include: S4101, S4102 and S4103; the other steps are optional steps or can be omitted, and the second information is sent to the third device to facilitate the third device to send the first signal to the first device.

[0472] In some embodiments, the communication method performed by the core network may include: S4102 and S4103; the other steps are optional steps or can be omitted, and the second information is sent to the third device to facilitate the third device to send the first signal to the first device.

[0473] In some embodiments, the communication method performed by the core network may include: S4101, S4102, S4103, and S4104; other steps are optional or may be omitted. After receiving the first information, the core network device may store it locally so that it can be sent to the core network device and / or the second device when it is convenient to send the first information.

[0474] In some embodiments, the communication method performed by the core network may include: S4102, S4103, S4104, and S4105; other steps are optional or can be omitted. The third device may be determined based on the second information, and the third information is no longer received.

[0475] FIG5 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG5 , the embodiment of the present disclosure relates to a communication method, which is executed by a second device and includes:

[0476] S5101: Send the fourth information.

[0477] The second device may be a server of the first device, or a counterpart terminal device of the second device.

[0478] In some embodiments, the second device sends fourth information to the core network device.

[0479] For the related description of the fourth information, please refer to the embodiment shown in FIG2 , which will not be repeated here.

[0480] S5102: Receive first information.

[0481] In some embodiments, first information sent by a third device through a first channel is received.

[0482] In other embodiments, the first information sent by the core network device through the second channel is received.

[0483] For the relevant descriptions of the first information, the second channel, and the third channel, please refer to any corresponding real-time description in FIG. 2 to FIG. 4 .

[0484] In some embodiments, the communication method performed by the second device may include S5102, i.e., S5101 is an optional or omitting step. The first information sent by various means may be received, and the reader of the first device is not limited to any device, as long as it can receive the first information.

[0485] In other embodiments, the communication method executed by the second device may include S5101, that is, S5102 is an optional step or an omittable step, and the first information only needs to be reported to the core network device.

[0486] FIG6 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG6 , the embodiment of the present disclosure relates to a communication method, which is executed by a first device and includes:

[0487] S6101: Receive a first signal.

[0488] For the relevant description of the first device here, please refer to the embodiment shown in FIG2 .

[0489] In some embodiments, a first signal sent by a third device is received.

[0490] In some embodiments, a first signal broadcast, multicast, or unicast by a third device is received.

[0491] The description of the first signal here refers to the embodiment shown in FIG2 , and will not be repeated here.

[0492] S6102: Send first information based on the signal energy of the first signal.

[0493] In some embodiments, the first information is sent to the third device based on the signal energy of the first signal.

[0494] In some embodiments, the first information is transmitted based on at least a portion of the energy of the first signal.

[0495] In some embodiments, the first information is sent based on stimulation of the first signal.

[0496] In some embodiments, the first information is sent based on a trigger of the first signal.

[0497] For the relevant description of the first information here, please refer to the embodiment shown in FIG2 , and the specific implementation is not limited to this embodiment.

[0498] The present disclosure provides a communication method, which is performed by a communication system. The communication system may include a first device and a third device. Specifically, the method may include:

[0499] The third device can be used to execute any one of the communication methods executed by the third device mentioned in the aforementioned technical solution; the first device can be used to execute any one of the communication methods executed by the first device mentioned in the aforementioned technical solution.

[0500] In some embodiments, the third device sends a first signal to the first device; wherein the first signal is at least used to trigger the first device to send first information.

[0501] In some embodiments, the first device receives the first signal and sends first information to the third device based on signal energy of the first signal.

[0502] In some embodiments, the third device receives the first information and sends the first information to a core network device.

[0503] In some embodiments, the third device receives second information sent by the core network device; wherein, the second information is used by the third device to send the first signal.

[0504] In some embodiments, the communication system further includes a core network device; the core network device can be used to execute any one of the communication methods performed by the core network device mentioned in the aforementioned technical solution.

[0505] In some embodiments, the core network device receives the first information and sends the first information to the second device.

[0506] In some embodiments, the communication system further includes a second device; the second device can be used to execute any one of the communication methods performed by the second device mentioned in the aforementioned technical solution.

[0507] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0508] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0509] In IoT networks, traditional IoT devices are often powered by conventional batteries with limited lifespans, negatively impacting the user experience. The astronomical growth of IoT networks, coupled with the proliferation of IoT devices, has pushed maintenance expenses, including labor and battery costs, to a whole new level. Billions of conventional batteries are discarded annually, with only a small fraction effectively recycled, negatively impacting the Earth's ecosystem. Maintaining IoT network operations and replacing batteries can be extremely challenging in some extreme environmental conditions. Battery-free IoT communications have been proposed, promising improved network performance and sustainability, and expanding application scenarios. Furthermore, battery-free communications are more environmentally friendly and safer for children and the elderly. By eliminating traditional batteries, device size and cost can be significantly reduced, paving the way for a variety of new applications.

[0510] In the 5G era, various LPWA (Low Power Wide Area) technologies, such as MTC (Machine Type Communication), NB-IoT (Narrow Band Internet of Things), and RedCap (Reduced Capability), have been developed to meet the growing needs of vertical fields. These LPWA technologies achieve low cost, low power consumption, and large-scale connectivity, which can meet the requirements of many applications. However, there are still many use cases and applications that cannot be solved in the following situations. First, devices driven by traditional batteries are not applicable, such as in extreme environmental conditions (such as high voltage, extremely high / low temperature, and humid environments). Second, maintenance-free devices are required (for example, traditional batteries that do not require replacement of the device). Finally, ultra-low complexity, very small device size / form factor (such as mm thickness), and longer life cycle are required.

[0511] Ambient-powered IoT is a promising technology that can address the aforementioned unmet needs. An ambient-powered IoT device is an IoT device powered by energy harvesting, either without a battery or with limited energy storage capabilities (e.g., using capacitors), by harvesting radio waves, light, motion, heat, or any other suitable power source.

[0512] Energy harvested from the environment can power data transmission and wireless communications at sensor nodes. Current mainstream low-power IoT communication chips (such as BLE, LoRa, and NB-IoT) consume tens or even hundreds of milliwatts of power for both transmission and reception. However, ambient energy harvesting only captures microwatts of energy, making it inadequate for these types of nodes. Therefore, a new wireless communication technology is needed to reduce communication energy consumption to tens or even below ten microwatts. The current approach utilizes backscatter communication technology. Backscatter communications is a key technology for building a green, energy-efficient, and flexibly deployable future IoT, and a crucial means of achieving the "Intelligent Connection of Everything."

[0513] Referring to Figure 1B, backscatter communication utilizes the principle of RF signal backscattering to design an extremely low-power modulation and transmission technology. Backscatter communication was first proposed by Stockman. When the RF signal reaches the surface of an object, a portion of it will be reflected. The sending node adjusts the matching between the receiving antenna and the impedance according to the information to be sent, thereby enhancing the reflection of the incident RF signal and modulating the acquired sensory data onto the reflected signal to complete the data transmission. This process is similar to a reflector. Compared with other communication technologies, backscatter communication does not require a complex RF structure, reduces the use of devices such as power amplifiers, high-precision crystal oscillators, duplexers, and high-precision filters, and does not require complex baseband processing. Therefore, it can simplify terminal design and significantly reduce terminal node costs.

[0514] Backscatter communication has been widely used in Radio Frequency Identification (RFID) systems, with numerous large-scale commercial applications. Its operating principle is that a receiver (typically an RFID reader) transmits a radio frequency excitation signal, activating a passive node (typically an RFID tag). The tag then uses backscatter communication to modulate its information onto the radio frequency signal. The reader then receives the reflected signal from the passive tag and demodulates it, achieving information transmission.

[0515] Referring to Figures 1C and 1G , current RFID technology also has numerous drawbacks, such as limited coverage (the wireless signal experiences double-path fading during the round-trip communication process, resulting in high path loss and a short effective communication range), single-channel transmission, the need for strict tag alignment, and a lack of power control. RFID technology still has significant room for improvement in communication. Integration with 3GPP communication technologies is needed to improve the wireless communication performance of RFID technology in the passive IoT.

[0516] Terminal data is transmitted via PDU sessions, while data from ambient energy IoT devices is primarily based on device IDs and / or sensor data. This data is not IP-based, so data collection and routing remain challenges. PDU session-based data transmission is not suitable for non-IP packet data transmission and routing. Furthermore, given the massive number of ambient energy IoT devices, establishing dedicated bearers for each terminal presents a significant challenge for the access network.

[0517] The IoT device provided in this embodiment utilizes task management to implement task-based non-IP data transmission and routing, addressing the data collection and routing needs of massive amounts of environmental energy IoT devices. It features low memory usage, low processing power, low power consumption, small data transmission times, and the ability to deploy massive amounts of data. The environmental IoT device is maintenance-free and has a long service life (e.g., over 10 years).

[0518] Definition of the task:

[0519] To address the diverse and numerous tasks that will emerge in 6G networks, the network layer must provide a complete task lifecycle management mechanism and task QoS guarantees, as well as task-related multi-node and four-element collaboration (connectivity, computing, data, and algorithms). 6G mentions a task-centric architecture, so tasks are defined for each passive IoT data report, in line with 6G. Everything is task-based, not terminal-based.

[0520] The IoT server or core network (CN) is responsible for task definition and ID assignment. Each task is also assigned an IP address, which serves as the final node for routing ambient IoT data reports. Each task also has a corresponding task description, including the scope of ambient IoT data involved, the type and / or category of data reported, the number of times the task has been triggered, and valid identification information identifying the task.

[0521] Solution 1: The base station node serves as a forwarding node, see Figure 7.

[0522] 1) The IOT server issues the task and generates a task ID and task-related parameters, such as information describing the task purpose, data type, target ambient IoT, etc. The IOT server optionally also configures an IP address for the task, which is used as the data routing endpoint for the ambient IoT to report data. The optional task information also includes the area scope for issuing the task, which can be a cell list or a base station ID list. The optional task information also includes the start time and / or end time of the task. The optional task information also includes the correspondence between the task ID and the ambient ID or part of the ambient IoT ID.

[0523] 2) The IOT server sends the generated task and task-related information to the core network (CN). The core network (CN) determines the target base station information based on the task area information preconfigured by the Operation Administration and Maintenance (OAM) equipment or the task area information sent by the IOT server, and forwards the task to the corresponding base station.

[0524] 3) The base station saves the task information, determines the target cell list for the task, and distributes the task in the cell.

[0525] Option 1: The task information or data request message sent by the base station to the ambient IoT includes the task ID, and / or the data reporting type or category, and / or the identification information of the target ambient IoT or a group of target ambient IoTs.

[0526] Option 2: The task information or data request message sent by the base station to the ambient IoT includes the data reporting type or category, and / or the identification information of the target ambient IoT or a group of target ambient IoTs.

[0527] 4) The base station receives data reports from ambient IOT.

[0528] Option 1: The data reported by the ambient IoT contains the task ID information. The base station matches the IP address according to the task ID and forwards the received data to the target IP address.

[0529] Option 2: The data reported by the ambient IoT does not contain the task ID information, but does contain the ambient IoT ID information. The base station matches the task ID through the ambient IoT ID or part of the ambient IoT ID information, and then matches the IP address according to the task ID, or directly matches the IP address, and then forwards the received data to the target IP address.

[0530] Solution 2: The core network node serves as a forwarding node, see Figure 8.

[0531] 1) The IOT server issues the task and generates a task ID and task-related parameters, such as information describing the task purpose, data type, target ambient IOT, etc. The IOT server optionally also configures an IP address for the task, which is used as the data routing terminal node for the ambient IOT to report data. The optional task information also includes the area range for issuing the task, which can be a cell list (cell list) or a base station ID list, etc. The optional task information also includes the start time and / or end time of the task. The optional task information also includes the correspondence between the task ID and the ambient ID or part of the ambient IOT ID.

[0532] 2) The IOT server sends the generated task and related information to the core network (CN). Based on the task area information preconfigured by OAM or sent by the IOT server, the CN determines the target base station and forwards the task to the corresponding base station. Simultaneously, the CN establishes a GTP tunnel or NGAP signaling connection for the task with the target base station. The CN stores the mapping between the task ID and IP address, the GTP tunnel and IP address, or the NGAP signaling connection and IP address.

[0533] 3) The base station stores the task information and determines the target cell list for the task. It then distributes the task to the cell. The base station stores the mapping between the task ID and the GTP tunnel, or the mapping between the NGAP signaling connection and the task ID. It also stores the mapping between the ambient IoT ID or a portion of the ambient IoT ID and the task ID, or the mapping between the ambient IoT ID or a portion of the ambient IoT ID and the GTP tunnel / NGAP signaling connection.

[0534] Option 1: The task information or data request message sent by the base station to the ambient IoT includes the task ID, and / or the data reporting type or category, and / or the identification information of the target ambient IoT or a group of target ambient IoTs.

[0535] Option 2: The task information or data request message sent by the base station to the ambient IoT includes the data reporting type or category, and / or the identification information of the target ambient IoT or a group of target ambient IoTs.

[0536] 4) The base station receives data reports from ambient IOT.

[0537] Option 1: The data reported by the ambient IOT includes the task ID information. The base station matches the GTP tunnel or NGAP signaling connection based on the task ID and forwards the data to the CN through the GTP tunnel or NGAP signaling connection.

[0538] Option 2: The data reported by the ambient IOT does not contain task ID information, but contains ambient IOT ID information. The base station matches the task ID through the ambient IOT ID or part of the information in the ambient IOT ID, and then matches the GTP tunnel or NGAP signaling connection according to the task ID, or directly matches the GTP tunnel or NGAP signaling connection, and then forwards the received data to the CN through the GTP tunnel or NGAP signaling connection.

[0539] 5) The CN matches the IP address based on the data received through the CTP tunnel or NGAP signaling and sends the data to the target node.

[0540] The IoT device provided in this embodiment needs to collect radio waves sent by network nodes to obtain energy in order to drive itself to work. Therefore, before obtaining energy, the IoT device is usually in a "shutdown" state, that is, an offline state. To this end, the communication system needs to support a data communication method with shorter transmission time, lower memory consumption, and more convenient terminal management to complete the data communication process as quickly as possible. By defining tasks and defining task-based IP addresses, GTP tunnels or NGAP signaling connections to route and forward data, the data collection of ambient IOT is realized.

[0541] The embodiments of the present disclosure also provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., a third device or a core network device) in any of the above methods.

[0542] It should be understood that the division of the various units or modules in the above devices is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above devices, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0543] In the embodiments of the present disclosure, a processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution 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 relationship of a hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by 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 to implement the hardware circuit configuration 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. In addition, 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), a deep learning processing unit (DPU), etc.

[0544] FIG9A is a schematic diagram of the structure of a third device provided in an embodiment of the present disclosure. As shown in FIG9A , the third device includes:

[0545] The transceiver module 901 is configured to send a first signal to a third device, wherein the first signal is at least used to trigger the first device to send first information; receive first information sent by the first device based on the first signal; and send the first information.

[0546] The transceiver module 901 may correspond to a specific structure such as an antenna or a network interface of the target terminal.

[0547] Optionally, the target terminal further includes a storage module and / or a processing module, wherein the storage module may be configured to store information, for example, to store the first information. The processing module may be configured to process information, for example, to control the sending of the first signal and / or the receiving and sending of the first information.

[0548] Optionally, the transceiver module 901 is further configured to send the first information to the second device through the first channel between the third device and the second device; or to send the first information to the core network device through the second channel between the third device and the core network device, wherein the core network device is used to send the first information to the second device through the third channel; the third channel is a transmission channel between the core network device and the second device.

[0549] Optionally, the transceiver module 901 is further configured to receive second information sent by the core network device, wherein the second information at least indicates that the third device serves as a reader of the first device; and the reader is used to send the first signal to the first device and receive the first information sent by the first device.

[0550] Optionally, the second information includes at least one of the following:

[0551] A task identifier, wherein the task identifier identifies a task to be executed by the first device;

[0552] Task information, wherein the task information describes the task to be performed;

[0553] first indication information, indicating that the first information is sent to the second device using the first channel, or indicating that the first information is sent to the second device using the second channel and the third channel;

[0554] The address information points to the second device.

[0555] Optionally, the task information includes at least one of the following:

[0556] Configuration information, configuring the third device to send the first signal and / or receive the first information;

[0557] Time information, indicating a time range for the third device to send the first signal;

[0558] Area information, indicating an area in which the third device sends the first signal;

[0559] a data reporting type, indicating a type of the first information sent by the first device;

[0560] a device identifier of a first device, indicating the first device that sends the first information;

[0561] The device group identifier of the first device group indicates a device group including a plurality of first devices that send the first information.

[0562] Optionally, the configuration information includes at least one of the following:

[0563] Resource information, configuring time domain resources and / or frequency domain resources for the third device to send the first signal and / or receive the first information;

[0564] Coverage information, indicating the coverage level and / or minimum transmit power for sending the first signal by the third device;

[0565] Number of repetitions, indicating the maximum number of repetitions for the third device to send the first signal;

[0566] The repetition interval indicates the time interval between two consecutive transmissions of the first signal by the third device.

[0567] Optionally, the area information includes a cell identifier and / or a base station identifier.

[0568] Optionally, the task information further includes at least one of the following:

[0569] a first correspondence between the task identifier and the device identifier of the first device;

[0570] a second correspondence between the device identifier of the first device and the first channel;

[0571] a third correspondence between the task identifier and the first channel;

[0572] A fourth corresponding relationship between the task identifier and the second channel.

[0573] Optionally, the transceiver module 901 is further configured to send the first signal carrying at least the task identifier to the third device.

[0574] Optionally, the first information carries the task identifier.

[0575] Optionally, the first information includes a device identification of the first device.

[0576] Optionally, the device identification includes a service code, wherein the service code indicates a type of service in which the first device participates.

[0577] Optionally, the transceiver module 901 is further configured to send third information to the core network device; wherein the third information is used by the core network device to determine a third device that serves as a reader of the first device.

[0578] Optionally, the third information indicates at least one of the following:

[0579] whether the third device supports acting as a reader;

[0580] Whether the third device agrees or desires to act as a reader.

[0581] Optionally, according to the transceiver module 901, it is further configured to establish a first channel with the second device based on the address information.

[0582] FIG9B is a schematic diagram of the structure of a core network device provided by an embodiment of the present disclosure. As shown in FIG9B , the core network device includes:

[0583] The transceiver module 902 is configured to receive fourth information from the second device, where the fourth information indicates that a third device is used as a reader of the first device; and send second information to the third device; wherein the second information at least indicates that the third device is used as a reader of the first device; wherein the reader is used to send a first signal to the first terminal and receive the first information sent by the first device.

[0584] Optionally, the second information further includes at least one of the following:

[0585] A task identifier, wherein the task identifier identifies a task to be executed by the first device;

[0586] Task information, wherein the task information describes the task to be performed;

[0587] First indication information, indicating that the first information is sent to the second device using a first channel, or indicating that the first information is sent to the second device using a second channel and a third channel; the first channel is a transmission channel between the third device and the second device; the second channel is a transmission channel between the third device and the core network device; and the third channel is a transmission channel between the core network device and the second device;

[0588] The address information points to the second device.

[0589] Optionally, the fourth information further includes:

[0590] The second indication information indicates whether a third device is used as a reader of the first device.

[0591] Optionally, the task information includes at least one of the following:

[0592] Configuration information, configuring the third device to send the first signal and / or receive the first information;

[0593] Time information, indicating a time range for the third device to send the first signal;

[0594] Area information, indicating an area in which the third device sends the first signal;

[0595] a data reporting type, indicating a type of the first information sent by the first device;

[0596] a device identifier of a first device, indicating the first device that sends the first information;

[0597] The device group identifier of the first device group indicates a device group including a plurality of first devices that send the first information.

[0598] Optionally, the configuration information includes at least one of the following:

[0599] Resource information, configuring time domain resources and / or frequency domain resources for the third device to send the first signal and / or receive the first information;

[0600] Coverage information, indicating the coverage level and / or minimum transmit power for sending the first signal by the third device;

[0601] Number of repetitions, indicating the maximum number of repetitions for the third device to send the first signal;

[0602] The repetition interval indicates the time interval between two consecutive transmissions of the first signal by the third device.

[0603] Optionally, the task information further includes at least one of the following:

[0604] a first correspondence between the task identifier and the device identifier of the first device;

[0605] a second correspondence between the device identifier of the first device and the first channel;

[0606] a third correspondence between the task identifier and the first channel;

[0607] A fourth corresponding relationship between the task identifier and the second channel.

[0608] Optionally, the transceiver module 902 is configured to receive the first information from the third device based on the second channel;

[0609] The first information is sent to the second device based on a third channel.

[0610] Optionally, the transceiver module 902 is configured to obtain third information; and determine the third device that serves as a reader of the first device according to the third information.

[0611] Optionally, the transceiver module 902 is configured to receive the third information from one or more third devices.

[0612] Optionally, the transceiver module 902 is configured to receive the third information sent by one or more third devices from the network management device.

[0613] FIG9C is a schematic diagram of the structure of a second device provided in an embodiment of the present disclosure. As shown in FIG9C , the second device includes:

[0614] The transceiver module 903 is configured to send fourth information to the core network device; wherein the fourth information includes second information, and the second information at least instructs the third device to send a first signal to the first device and receive the first information sent by the first device.

[0615] Optionally, the second information includes at least one of the following:

[0616] A task identifier, wherein the task identifier identifies a task to be executed by the first device;

[0617] Task information, wherein the task information describes the task to be performed;

[0618] First indication information, indicating that the first information is sent to the second device using a first channel, or indicating that the first information is sent to the second device using a second channel and a third channel; the first channel is a transmission channel between the third device and the second device; the second channel is a transmission channel between the third device and the core network device; and the third channel is a transmission channel between the core network device and the second device;

[0619] The address information points to the second device.

[0620] Optionally, the task information includes at least one of the following:

[0621] Configuration information, configuring the third device to send the first signal and / or receive the first information;

[0622] Time information, indicating a time range for the third device to send the first signal;

[0623] Area information, indicating an area in which the third device sends the first signal;

[0624] a data reporting type, indicating a type of the first information sent by the first device;

[0625] a device identifier of a first device, indicating the first device that sends the first information;

[0626] The device group identifier of the first device group indicates a device group including a plurality of first devices that send the first information.

[0627] Optionally, the configuration information includes at least one of the following:

[0628] Resource information, configuring time domain resources and / or frequency domain resources for the third device to send the first signal and / or receive the first information;

[0629] Coverage information, indicating the coverage level and / or minimum transmit power for sending the first signal by the third device;

[0630] Number of repetitions, indicating the maximum number of repetitions for the third device to send the first signal;

[0631] The repetition interval indicates the time interval between two consecutive transmissions of the first signal by the third device.

[0632] Optionally, the task information further includes at least one of the following:

[0633] a first correspondence between the task identifier and the device identifier of the first device;

[0634] a second correspondence between the device identifier of the first device and the first channel;

[0635] a third correspondence between the task identifier and the first channel;

[0636] A fourth corresponding relationship between the task identifier and the second channel.

[0637] Optionally, the fourth information further includes:

[0638] The second indication information indicates whether to use the third device as a reader of the first device.

[0639] The transceiver module 903 is configured to receive the first information based on the first channel; or to receive the first information based on the third channel.

[0640] FIG9D is a schematic diagram of the structure of a first device provided by an embodiment of the present disclosure. As shown in FIG9D , the first device includes:

[0641] The transceiver module 904 is configured to receive a first signal sent by a third device; and send first information to the third device based on signal energy of the first signal.

[0642] Optionally, the first signal carries at least one of the following:

[0643] A task identifier, wherein the task identifier identifies a task to be executed by the first device;

[0644] Task information, wherein the task information describes the task to be performed.

[0645] Optionally, the transceiver module 904 is configured to send first information including the task identifier to the third device based on the signal energy of the first signal; or to send first information including the device identifier to the third device based on the signal energy of the first signal, wherein the device identifier is used for the first device.

[0646] Optionally, the device identification includes a service code; the service code indicates a type of service in which the first device participates.

[0647] As shown in FIG1A , an embodiment of the present disclosure provides a communication system, which includes: a first device and a third device;

[0648] A first device is configured to receive a first signal and send first information to a target terminal based on signal energy of the first signal;

[0649] The third device is configured to receive first information from the first device; the first information is sent to the target terminal by the first device when triggered by the first signal.

[0650] Optionally, the system further includes: a second device;

[0651] The third device is further configured to send the first information to the second device through the first channel, wherein the first channel is a transmission channel between the third device and the second device.

[0652] Optionally, the system further includes: a second device and a core network device;

[0653] The third device is further configured to send the first information to the core network device through the second channel; wherein the second channel is a transmission channel between the third device and the core network device;

[0654] The core network device is configured to send the first information to the second device through the third channel, wherein the second channel is a transmission channel between the core network device and the second device.

[0655] In the embodiments of the present disclosure, the steps performed by the third device can refer to any of the aforementioned solutions of the third device.

[0656] In the embodiments of the present disclosure, the steps performed by the core network device may refer to any of the aforementioned solutions of the core network device.

[0657] In the embodiments of the present disclosure, the steps performed by the first device may refer to any of the aforementioned solutions of the first device.

[0658] In the embodiments of the present disclosure, the steps performed by the second device may refer to any of the aforementioned second device solutions.

[0659] In some embodiments, as shown in Figures 10A and / or 10B, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memory 8102 may also be outside the communication device 8100. Figure 10A is a structural diagram of the communication device 8100 provided in an embodiment of the present disclosure. The communication device 8100 may be a network device (for example, a third device or a core network device, etc.), or a terminal (for example, a user device, etc.), or a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above communication methods. The communication device 8100 may be used to implement the communication method described in the above method embodiment. For details, please refer to the description in the above method embodiment.

[0660] As shown in Figure 10A, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The processor 8101 is used to call instructions to enable the communication device 8100 to execute any of the above communication methods.

[0661] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 may be located outside the communication device 8100.

[0662] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the communication steps such as sending and receiving in the above method are performed by the transceiver 8103, and the other steps are performed by the processor 8101.

[0663] In some embodiments, a transceiver may include a receiver and a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0664] Optionally, the communication device 8100 further includes one or more interface circuits 8104, which are connected to the memory 8102. The interface circuits 8104 can be used to receive signals from the memory 8102 or other devices, and can be used to send signals to the memory 8102 or other devices. For example, the interface circuits 8104 can read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0665] The communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 8a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: (1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0666] FIG10B is a schematic diagram of the structure of the chip 8200 provided in an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG8b, but the present disclosure is not limited thereto.

[0667] The chip 8200 includes one or more processors 8201 , and the processor 8201 is used to call instructions so that the chip 8200 executes any of the above communication methods.

[0668] In some embodiments, chip 8200 further includes one or more interface circuits 8202, which are connected to memory 8203. Interface circuit 8202 can be used to receive signals from memory 8203 or other devices, and can be used to send signals to memory 8203 or other devices. For example, interface circuit 8202 can read instructions stored in memory 8203 and send the instructions to processor 8201. Optionally, the terms interface circuit, interface, transceiver pin, and transceiver are interchangeable.

[0669] In some embodiments, the chip 8200 further includes one or more memories 8203 for storing instructions. Alternatively, all or part of the memories 8203 may be outside the chip 8200.

[0670] The present disclosure also provides a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute 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 may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but may also be a transient storage medium.

[0671] The present disclosure further provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above communication methods. Optionally, the program product is a computer program product.

[0672] The present disclosure also provides a computer program, which, when executed on a computer, enables the computer to execute any one of the above communication methods.

[0673] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow from the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0674] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A communication method, wherein: include: The third device sends a first signal, wherein the first signal is at least used to trigger the first device to send first information; receiving first information sent by the first device based on the first signal; The first information is sent.

2. The method according to claim 1, wherein: The sending the first information includes: sending the first information to the second device through a first channel between the third device and the second device; or, The first information is sent to the core network device via a second channel between the third device and the core network device, wherein the core network device is used to send the first information to the second device via a third channel; the third channel is a transmission channel between the core network device and the second device.

3. The method according to claim 1 or 2, wherein: The method further comprises: Receive second information sent by a core network device, wherein the second information at least indicates that the third device serves as a reader of the first device; the reader is used to send the first signal to the first device and receive the first information sent by the first device.

4. The method according to claim 3, wherein: The second information includes at least one of the following: A task identifier, wherein the task identifier identifies a task to be performed by the first device; Task information, wherein the task information describes the task to be performed; first indication information, indicating that the first information is sent to the second device using the first channel, or indicating that the first information is sent to the second device using the second channel and the third channel; The address information points to the second device.

5. The method according to claim 4, wherein: The task information includes at least one of the following: Configuration information, configuring the third device to send the first signal and / or receive the first information; time information, indicating a time range for the third device to send the first signal; Area information, indicating an area range in which the third device sends the first signal; Data reporting type, indicating the type of the first information sent by the first device; a device identifier of a first device, indicating the first device that sends the first information; The device group identifier of the first device group indicates a device group including a plurality of the first devices that send the first information.

6. The method according to claim 5, wherein: The configuration information includes at least one of the following: Resource information, configuring the time domain resources and / or frequency domain resources for the third device to send the first signal and / or receive the first information; Coverage information, indicating the coverage level and / or minimum transmission power of the first signal sent by the third device; A repetition number, indicating a maximum number of repetitions for the third device to send the first signal; The repetition interval indicates the time interval between two consecutive times when the third device sends the first signal.

7. The method according to claim 5, wherein: The area information includes a cell identifier and / or a base station identifier.

8. The method according to claim 4, wherein: The task information also includes at least one of the following: a first corresponding relationship between the task identifier and the device identifier of the first device; a second corresponding relationship between the device identification of the first device and the first channel; a third corresponding relationship between the task identifier and the first channel; A fourth corresponding relationship between the task identifier and the second channel.

9. The method according to claim 4, wherein: The sending of the first signal comprises: The third device sends the first signal carrying at least the task identifier.

10. The method according to claim 4, wherein: The first information carries the task identifier.

11. The method according to any one of claims 1 to 10, wherein: The first information includes a device identification of the first device.

12. The method according to claim 5, wherein: The device identification includes a service code, wherein the service code indicates a type of service in which the first device participates.

13. The method according to claim 1, wherein: The method further comprises: Sending third information to the core network device; wherein the third information is used by the core network device to determine a third device that serves as a reader of the first device.

14. The method according to claim 13, wherein: The third information indicates at least one of the following: whether the third device supports acting as a reader; Whether the third device agrees or desires to act as a reader.

15. The method according to claim 4, wherein: The method comprises: A first channel is established with the second device according to the address information.

16. A communication method, wherein: include: receiving fourth information from the second device, wherein the fourth information indicates that the third device is used as a reader of the first device; Sending second information to the third device; wherein the second information at least indicates that the third device serves as a reader of the first device; wherein the reader is used to send a first signal to the first terminal and receive the first information sent by the first device.

17. The method according to claim 16, wherein: The second information also includes at least one of the following: A task identifier, wherein the task identifier identifies a task to be performed by the first device; Task information, wherein the task information describes the task to be performed; First indication information, indicating that the first information is sent to the second device using a first channel, or indicating that the first information is sent to the second device using a second channel and a third channel; the first channel is a transmission channel between the third device and the second device; the second channel is a transmission channel between the third device and the core network device; the third channel is a transmission channel between the core network device and the second device; The address information points to the second device.

18. The method according to claim 16, wherein: The fourth information further includes: The second indication information indicates whether to adopt a third device as a reader of the first device.

19. The method according to claim 16 or 17, wherein: The task information includes at least one of the following: Configuration information, configuring the third device to send the first signal and / or receive the first information; time information, indicating a time range for the third device to send the first signal; Area information, indicating an area range in which the third device sends the first signal; Data reporting type, indicating the type of the first information sent by the first device; a device identifier of a first device, indicating the first device that sends the first information; The device group identifier of the first device group indicates a device group including a plurality of the first devices that send the first information.

20. The method according to claim 19, wherein: The configuration information includes at least one of the following: Resource information, configuring the time domain resources and / or frequency domain resources for the third device to send the first signal and / or receive the first information; Coverage information, indicating the coverage level and / or minimum transmission power of the first signal sent by the third device; A repetition number, indicating a maximum number of repetitions for the third device to send the first signal; The repetition interval indicates the time interval between two consecutive times when the third device sends the first signal.

21. The method according to claim 19, wherein: The task information also includes at least one of the following: a first corresponding relationship between the task identifier and the device identifier of the first device; a second corresponding relationship between the device identification of the first device and the first channel; a third corresponding relationship between the task identifier and the first channel; A fourth corresponding relationship between the task identifier and the second channel.

22. The method according to any one of claims 14 to 16, wherein: The method further comprises: receiving the first information from the third device based on a second channel; The first information is sent to the second device based on a third channel.

23. The method according to claim 16, wherein: The method further comprises: Obtaining third party information; The third device serving as a reader of the first device is determined according to the third information.

24. The method according to claim 23, wherein: The obtaining of the third information includes: The third information is received from one or more third devices.

25. The method according to claim 23, wherein: The obtaining of the third information includes: The third information sent by one or more third devices is received from the network management device.

26. A communication method, wherein: include: Send fourth information to the core network device; wherein the fourth information includes second information, and the second information at least indicates that the third device sends a first signal to the first device and receives the first information sent by the first device.

27. The method according to claim 26, wherein: The second information includes at least one of the following: A task identifier, wherein the task identifier identifies a task to be performed by the first device; Task information, wherein the task information describes the task to be performed; First indication information, indicating that the first information is sent to the second device using a first channel, or indicating that the first information is sent to the second device using a second channel and a third channel; the first channel is a transmission channel between the third device and the second device; the second channel is a transmission channel between the third device and the core network device; the third channel is a transmission channel between the core network device and the second device; The address information points to the second device.

28. The method according to claim 26 or 27, wherein: The task information includes at least one of the following: Configuration information, configuring the third device to send the first signal and / or receive the first information; time information, indicating a time range for the third device to send the first signal; Area information, indicating an area range in which the third device sends the first signal; Data reporting type, indicating the type of the first information sent by the first device; a device identifier of a first device, indicating the first device that sends the first information; The device group identifier of the first device group indicates a device group including a plurality of the first devices that send the first information.

29. The method according to claim 28, wherein: The configuration information includes at least one of the following: Resource information, configuring the time domain resources and / or frequency domain resources for the third device to send the first signal and / or receive the first information; Coverage information, indicating the coverage level and / or minimum transmission power of the first signal sent by the third device; A repetition number, indicating a maximum number of repetitions for the third device to send the first signal; The repetition interval indicates the time interval between two consecutive times when the third device sends the first signal.

30. The method of claim 27, wherein: The task information also includes at least one of the following: a first corresponding relationship between the task identifier and the device identifier of the first device; a second corresponding relationship between the device identification of the first device and the first channel; a third corresponding relationship between the task identifier and the first channel; A fourth corresponding relationship between the task identifier and the second channel.

31. The method of claim 26, wherein: The fourth information also includes: The second indication information indicates whether to use the third device as a reader of the first device.

32. The method of claim 27, wherein: The method further comprises: receiving the first information based on the first channel; or, The first information is received based on the third channel.

33. A communication method, wherein: include: receiving a first signal sent by a third device; Based on the signal energy of the first signal, first information is sent to the third device.

34. The method of claim 33, wherein: The first signal carries at least one of the following: A task identifier, wherein the task identifier identifies a task to be performed by the first device; Task information, wherein the task information describes the task to be performed.

35. The method according to claim 33 or 34, wherein: The sending the first information to the third device based on the signal energy of the first signal includes: Based on the signal energy of the first signal, sending first information including the task identifier to the third device; or, Based on the signal energy of the first signal, first information including a device identification is sent to the third device, wherein the device identification is used for the first device.

36. The method of claim 33, wherein: The device identification includes a service code, and the service code indicates a service type in which the first device participates.

37. A communication method, wherein: include: The third device sends a first signal to the first device; wherein the first signal is at least used to trigger the first device to send first information; The first device receives the first signal, and sends first information to the third device based on signal energy of the first signal; The third device receives the first information, and sends the first information to the core network device; The core network device receives the first information, and sends the first information to the second device.

38. The method of claim 37, wherein: The method further comprises: The third device receives second information sent by the core network device; wherein the second information is used by the third device to send the first signal.

39. The method according to claim 37 or 38, wherein: The method further comprises: Before sending the second information to the third device, the third device sends third information to the core network device; wherein the third information is used by the core network device to determine the third device that acts as a reader of the first device; wherein the reader is used to send the first signal to the first device and receive the first information returned by the first device.

40. A third device, wherein: include: A transceiver module is configured to send a first signal, wherein the first signal is at least used to trigger the first device to send first information; Receive first information sent by the first device based on the first signal; and send the first information.

41. A core network device, wherein: include: The transceiver module is configured to receive fourth information from the second device; wherein the fourth information indicates that the third device is used as a reader of the first device; Sending second information to a third device; the second information at least indicates that the third device serves as a reader of the first device; the reader is used to send a first signal to the first terminal and receive the first information sent by the first device.

42. A second device, wherein: include: The transceiver module is configured to send fourth information to the core network device; wherein the fourth information includes second information, and the second information at least indicates that the third device sends a first signal to the first terminal and receives the first information sent by the first device.

43. A first device, wherein: include: a transceiver module, configured to receive a first signal sent by a third device; Based on the signal energy of the first signal, first information is sent to the third device.

44. A communication system, wherein: The information indication system includes a third device, a core network device, a first device and a second device; the third device is configured to implement the method described in any one of claims 1 to 15, the core network device is configured to implement the method described in any one of claims 16 to 25, the second device is configured to implement the method described in any one of claims 26 to 32, and the first device is configured to execute the method described in any one of claims 33 to 36.

45. A communication device, wherein: The communication device comprises: one or more processors; The processor is used to call instructions so that the communication device executes the communication method described in any one of claims 1 to 15, claims 16 to 25, claims 26 to 32, claims 33 to 36, and claims 37 to 39.

46. ​​A storage medium, wherein: The storage medium stores instructions, which, when executed on a communication device, enable the communication device to execute the communication method described in any one of claims 1 to 15, claims 16 to 25, claims 26 to 32, claims 33 to 36, and claims 37 to 39.

Images